A compressor main body container includes a main shell having a vertical cylindrical shape, a top shell having a cup shape, and a bottom shell having a cup shape, and an interior portion of the main shell is hermetically sealed by securing an opening side of the top shell to an upper end portion of the main shell at a first welded portion by welding, and securing an opening side of the bottom shell to a lower end portion of the main shell at a second welded portion by welding. The accumulator container includes an accumulator shell having a cup shape, and an interior portion of the accumulator shell is hermetically sealed by securing an opening side of the accumulator shell to an opposite opening side of the bottom shell at a third welded portion by welding at a position lower than a position of the second welded portion in the compressor main body container.
F25B 31/02 - Compressor arrangements of motor-compressor units
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
A fan includes a multi wing fan and a mechanism configured to rotate the multi wing fan around a rotation axis, wherein the multi wing fan includes two impellers lined in an axial direction is parallel to the rotation axis, and a partition plate arranged along a plane perpendicular to the rotation axis, the partition plate includes a body part that separates the two impellers, and an outer circumferential part that surrounds an outer circumferential side of the body part, the outer circumferential part gets thinner toward an outer circumferential edge of the partition plate, the outer circumferential edge includes a first outer circumferential edge part, and a second outer circumferential edge part different from the first outer circumferential edge part, and a position of the first outer circumferential edge part in the axial direction is different from a position of the second outer circumferential edge part in the axial direction.
F04D 17/04 - Radial-flow pumps specially adapted for elastic fluids, e.g. centrifugal pumps; Helico-centrifugal pumps specially adapted for elastic fluids having non-centrifugal stages, e.g. centripetal of transverse-flow type
F04D 29/28 - Rotors specially adapted for elastic fluids for centrifugal or helico-centrifugal pumps
A blower includes a cross flow fan, a mechanism configured to rotate the cross flow fan about a rotation axis, a front tongue part that is arranged in front of the cross flow fan, and a back tongue part that is arranged in back of the cross flow fan, wherein a front fan facing surface of the front tongue part faces the cross flow fan, and includes a plurality of front non-flat portions on which non-flatness is formed, and a plurality of front flat portions on which no non-flatness formed, a back fan facing surface of the back tongue part faces the cross flow fan, and includes a plurality of back non-flat portions on which non-flatness formed, and a plurality of back flat portions on which no non-flatness is formed, and the back non-flat portions respectively face the front flat portions and the back flat portions respectively face the front non-flat portions.
F04D 17/04 - Radial-flow pumps specially adapted for elastic fluids, e.g. centrifugal pumps; Helico-centrifugal pumps specially adapted for elastic fluids having non-centrifugal stages, e.g. centripetal of transverse-flow type
F04D 29/58 - Cooling; Heating; Diminishing heat transfer
An outdoor unit (2) for an air conditioner (1) comprises a housing (30) in which a heat exchange chamber (RA) and a machine chamber (RB) are demarcated by a partition plate (34). The machine chamber (RB) accommodates at least a first control substrate (27) and a second control substrate (28). The heat exchange chamber (RA) accommodates an outdoor fan (17) that blows air. When a surface, of the housing (30), where an air nozzle (41) is formed is defined as a front face, the first control substrate (27) is disposed along the front face of the housing (30) constituting the machine chamber (RB), and the second control substrate (28) is disposed along a right-side face of the housing (30) constituting the machine chamber (RB).
The motor control device according to one embodiment of the present invention comprises an inverter, a calculation unit, a speed estimation unit, and a current control unit. The inverter converts the DC voltage supplied from a DC power supply to an AC voltage and applies the AC voltage to a motor by PWM control. The calculation unit detects the bus line current of the inverter using a resistor connected between the DC power supply and the inverter and, on the basis of the bus line current, calculates motor current flowing through a motor at intervals of a predetermined control period. The speed estimation unit estimates motor speed on the basis of a detection current that is the motor current detected by being calculated by the calculation unit. The current control unit has an integrator for performing integral control at intervals of the predetermined control period, stops performing the integral control in a control period in which the detection current is not detected, and controls the motor current so that the speed estimated by the speed estimation unit becomes a command speed.
H02P 21/24 - Vector control not involving the use of rotor position or rotor speed sensors
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
6.
OUTDOOR UNIT OF HEAT PUMP CYCLE DEVICE, AND HEAT PUMP CYCLE DEVICE
This outdoor unit of a heat pump cycle device includes a housing (30) accommodating an outdoor heat exchanger (13) and an outdoor fan (17) that blows air onto the outdoor heat exchanger (13), wherein: the housing (30) has a first front surface portion (36A) provided with a blowout port (41) for blowing, to the outside of the housing (30), air that has exchanged heat with a refrigerant in the outdoor heat exchanger (13) as a result of the rotation of the outdoor fan (17), and a fan guard (42) attached to the first front surface portion (36A) to cover the blowout port (41); and a supporting portion (70) on which the fan guard (42) is supported is provided in a lower portion of the first front surface portion (36A).
The present invention provides a method for manufacturing a vane to be used in a compressor comprising a cylinder, a piston orbiting along the inner circumference of the cylinder, and end plates sealing both ends of the cylinder, the vane being provided in a vane groove of the cylinder so that a cylinder chamber formed between the cylinder and the piston is divided into an intake chamber and a compression chamber, the method comprising: forming, from a base material with a Cr content exceeding 4.5 wt%, a vane (127) having a tip surface (129a) to slide against the outer circumference of the piston; forming a high hardness coating layer (211) on at least the tip surface (129a) of the vane (127); and nitriding the vane (127) after the formation of the high hardness coating layer (211).
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
8.
AIR CONDITIONER, AIR CONDITIONING CONTROL APPARATUS, AND AIR CONDITIONING SYSTEM
A communication adapter connected to an indoor unit included in an air conditioner includes a communication unit, a determination unit, and a communication control unit. The communication unit communicates data to an air conditioning control apparatus that performs centralized control of a plurality of air conditioners. The determination unit determines whether or not transmission target data is communicated by using encryption communication. The communication control unit controls, when the transmission target data is communicated by using the encryption communication, the communication unit in order to communicate the transmission target data by using the encryption communication. Consequently, it is possible to decrease a laying cost of a dedicated communication cable and reduce a communication load needed for data communication related to the air conditioners in an existing communication network at the time of central control performed on the air conditioners.
According to the present invention, when employing a refrigeration cycle circuit equipped with a heat storage device while employing a multi-stage refrigeration cycle, a sufficient amount of refrigerant in the refrigeration cycle circuit during operation is ensured, and a heat storage capability is also maintained without compromising a comfort level by suppressing a decrease in heating capability. This two-stage cascade refrigeration cycle device comprises a high-stage side refrigerant circuit (1) through which a high-stage side refrigerant circulates, a low-stage side refrigerant circuit (2) through which a low-stage side refrigerant circulates, a high-stage side heat storage circuit (3) equipped with a heat storage heat exchanger (H) which is provided in parallel with a cascade heat exchanger (C) through which the high-stage side refrigerant circulates, a low-stage side heat storage circuit (4) equipped with the heat storage heat exchanger (H) through which the low-stage side refrigerant circulates, a refrigerant temperature detecting unit (5) for measuring or calculating a saturation temperature of the low-stage side refrigerant discharged from a low-stage side compressor (21), a heat storage temperature sensor (HS) for measuring a temperature of a heat storage material, and a control unit (6), wherein, when performing a space heating operation, the control unit (6) acquires information relating to the saturation temperature and information relating to the temperature of the heat storage material, and controls the low-stage side compressor (21) such that a temperature difference between the saturation temperature and the temperature of the heat storage material is a first prescribed value.
F25B 7/00 - Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
F24F 11/875 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling heat-storage apparatus
F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
F25B 13/00 - Compression machines, plants or systems, with reversible cycle
A motor control device (100) wherein an inverter (10) converts a DC voltage that is supplied from a DC electric power source into an AC voltage and applies the converted AC voltage to a motor (M), an electric current detection unit (21) detects a bus bar electric current of the inverter (10) using a shunt resistance (Rs) that is connected between the DC electric power source and the inverter, a 3-phase electric current calculation unit (61) calculates a motor electric current that flows in the motor (M) on the basis of the bus bar electric current, a first extraction unit (91) extracts from the motor electric current a noise component that is included in the motor electric current, and a noise amount determination unit (92) determines the magnitude of the noise in the bus bar electric current on the basis of the extracted noise component.
H02P 21/14 - Estimation or adaptation of machine parameters, e.g. flux, current or voltage
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
The present invention provides a refrigeration device which is capable of switching between a single-stage operation and a dual-stage operation and which makes it possible to suppress heat leakage from a use-side apparatus to a refrigerant circuit-side via a heat exchanger that is in a state of not functioning as a heat exchanger due to a refrigerant not flowing. The present invention comprises: a high stage-side refrigerant circuit (2) in which a high stage-side heat transfer medium heat exchanger (11) and a cascade heat exchanger (13) that perform heat exchange with a heat transfer medium are sequentially connected via refrigerant piping; a low stage-side refrigerant circuit (3) in which the cascade heat exchanger (13), a low stage-side heat transfer medium heat exchanger (24) and a low stage-side heat exchanger (22) that are connected in parallel to the cascade heat exchanger (13) and that perform heat exchange with a heat transfer medium are sequentially connected via refrigerant piping; and a control unit (5) which controls the high stage-side refrigerant circuit (2) and the low stage-side refrigerant circuit (3). The control unit (5) is capable of switching between a single-stage operation and a dual-stage operation. The low stage-side heat transfer medium heat exchanger (24) is provided with low stage-side blockage means (40), (41). The high stage-side heat transfer medium heat exchanger (11) is provided with high stage-side blockage means (42), (43).
F25B 7/00 - Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
A compressor includes a rotor core, a stator configured to rotate the rotor core about a rotational axis, and a compressing unit that is driven as the rotor core is rotated, wherein the rotor core includes a stack of a plurality of core sheets, each core sheet of the core sheets has a balancing hole by which a center of a mass of the core sheet is offset in a radial direction from the rotational axis, the rotor core includes an eccentric portion and an eccentricity alleviating portion, the center of a mass of the eccentric portion is offset in the radial direction from the rotational axis, and in the eccentricity alleviating portion, the eccentricity of the balancing holes of some of the core sheets is canceled out by the eccentricity of the balancing holes of others of the core sheets.
H02K 15/16 - Centering rotors within the stator; Balancing rotors
F04C 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
In a compression unit, an upper compression unit suction tube is connected to an upper suction hole of an upper cylinder, and a lower compression unit suction tube is connected to a lower suction hole of a lower cylinder. In an accumulator shell of an accumulator vessel, an accumulator suction tube, an upper gas-liquid separation tube, and a lower gas-liquid separation tube penetrate a side wall of the accumulator shell, and are fixed by welding to a first through hole, a second through hole, and a third through hole of the accumulator shell, respectively. The upper gas-liquid separation tube is connected to the upper compression unit suction tube via an upper connecting tube outside the accumulator shell. The lower gas-liquid separation tube is connected to the lower compression unit suction tube via a lower connecting tube outside the accumulator shell.
F04C 15/00 - Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups
B01D 46/24 - Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
F04C 2/32 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having both the movement defined in group and relative reciprocation between the co-operating members
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
Provided is a binary refrigeration device that performs a start-up operation rapidly, thereby making it possible to suppress a decrease in heating capability caused by worsening of the start-up operation. The present invention comprises: a high-order side refrigerant circuit (2) in which a high-order side refrigerant circulates; a low-order side refrigerant circuit (3) including a first circulation path (23) that performs heat exchange with the high-order side refrigerant at a cascade heat exchanger (13), and a second circulation path (26) that performs heat exchange with a heat medium at a low-order side heat exchanger (24), the low-order side refrigerant circuit having a low-order side refrigerant circulating therein; and a heat medium circuit (4) in which circulates a heat medium that performs heat exchange with the high-order side refrigerant at a high-order side heat exchanger (11), and performs heat exchange with the low-order side refrigerant at the low-order side heat exchanger (24), wherein the heat medium circuit (4) includes a first heat medium circulation path (35) in which the heat medium circulates through the high-order side heat exchanger (11) and the low-order side heat exchanger (24), and a second heat medium circulation path (36) in which the heat medium circulates through the high-order heat exchanger (11).
F25B 7/00 - Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
In an air conditioner according to one embodiment, a refrigerant circuit for circulating a refrigerant has connected thereto: a compressor that compresses the refrigerant; an indoor heat exchanger; an outdoor heat exchanger; a heat storage heat exchanger that performs heat exchange between a heat storage material and the refrigerant; a plurality of expansion valves having adjustable opening degrees; and a plurality of switching valves that switch a circulation path of the refrigerant in the refrigerant circuit between a heat storage heating operation that causes the indoor heat exchanger and the heat storage heat exchanger to function as a condenser, and the outdoor heat exchanger to function as an evaporator, and a defrost heating operation that causes the indoor heat exchanger and the outdoor heat exchanger to function as a condenser, and the heat storage heat exchanger to function as an evaporator. One among the plurality of expansion valves is provided upstream of the outdoor heat exchanger in the case where the outdoor heat exchanger is caused to function as a condenser, and said one expansion valve reduces the pressure of the refrigerant flowing into the outdoor heat exchanger.
An air conditioner includes a refrigerant circuit that is formed by connecting an indoor unit to an outdoor unit, where the circuit is filled with a predetermined amount of a refrigerant. The conditioner includes an obtainer that regularly acquires an operating state quantity at a time of air conditioning operation, a storage that stores therein the quantity that is acquired, a model that estimates a refrigerant remaining amount in the circuit by using the quantity, a detector that detects one of a first quantity being an operating state quantity in a state in which the circuit meets a first condition and a second quantity being an operating state quantity in a state in which the circuit meets a second condition that is different from the first condition, and a controller that estimates the remaining refrigerant amount in the circuit by using the model and the detected quantity.
F24F 11/49 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
F24F 11/62 - Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
[Problem] To provide an air-conditioning device with which all outdoor units can be reliably unified into a cooling/heating switching scheme or a cooling/heating free scheme. [Solution] An air-conditioning device according to one embodiment of the present invention comprises a plurality of outdoor units and a plurality of indoor units, the air-conditioning device being capable of selecting a first refrigerant circuit state, in which the indoor units can individually implement a cooling operation and a heating operation, or a second refrigerant circuit state, in which the indoor units can implement the cooling operation or the heating operation at the same time. When either the first refrigerant circuit state or the second refrigerant circuit state is selected in one of the plurality of outdoor units, a state signal including information relating to the selected refrigerant circuit state is transmitted from a communication unit of the one outdoor unit to communication units of the other outdoor units, and the other outdoor units that have received the state signal select the same refrigerant circuit state as the refrigerant circuit state selected by the one outdoor unit.
F24F 11/49 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
F24F 11/30 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
F24F 11/84 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
F25B 13/00 - Compression machines, plants or systems, with reversible cycle
An air conditioner (1) is equipped with: a compressor (11); a condenser (16) which is connected to the compressor (11) via a discharge pipe (18); an evaporator (14) which is connected to the compressor (11) via an intake pipe (17); a main expansion valve (15) for decompressing the coolant supplied from the condenser (16), and supplying the same to the evaporator (14); a bypass expansion valve (23) which is provided partway along a bypass channel (22) for connecting the discharge pipe (18) and the intake pipe (17) with one another; and a control device (43) for controlling the bypass expansion valve (23) while the compressor (11) compresses the coolant in the intake pipe (17) and discharges the same to the discharge pipe (18), and switching between a first state in which the coolant does not flow through the bypass channel (22) and a second state in which the coolant does flow from the discharge pipe (18) through the bypass channel (22) to the intake pipe (17).
An air conditioning system includes a plurality of air conditioners; a server that is connected to each of the air conditioners via a communication network and that stores device information on each of the air conditioners; and a terminal that is connected to each of the air conditioners via the server. The server includes a classification unit that classifies the plurality of air conditioners into a plurality of groups based on the device information, and a notification unit that notifies the terminals of information related to a test run of each of the air conditioners that are classified into the groups. As a result, it is possible to reduce a work load of a maintenance worker in a distributed manner in an intermediate period by performing the test run of each of the air conditioners in a distributed manner.
A compressor includes: a compressor; and a motor that is disposed in the compressor housing. The motor has a rotor provided coaxially with respect to a rotary shaft of the compression part, and a stator disposed on an outer peripheral side of the rotor. In the stator, a plurality of large-diameter parts in contact with an inner peripheral surface of the compressor housing and a plurality of small-diameter parts, each of the small-diameter parts having a distance from a rotation center of the motor to an outer peripheral surface, the distance being smaller than the distance of the large-diameter part, are formed in a circumferential direction of the stator. The stator is provided with a plurality of welded parts joining the inner peripheral surface of the compressor housing with the outer peripheral surface of the stator, and the welded parts are provided in the small-diameter part of the stator.
F04B 35/04 - Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
An outer peripheral wall portion of an insulator has a plurality of slits that are formed to extend from one end in a direction of a central axis of the outer peripheral wall portion along the central axis and through which a winding wire drawn out from a winding portion is passed. The outer peripheral wall portion is formed with a connecting slit provided with a step portion by connecting two of the plurality of slits that are adjacent to each other in a circumferential direction of the outer peripheral wall portion, that extend from the one end, and that are different in depth.
H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
H02K 3/52 - Fastening salient pole windings or connections thereto
An air conditioner according to one embodiment of the present invention comprises a refrigerant circuit, a first temperature detector, a first pressure detector, and a control device. The first temperature detector detects the temperature of a refrigerant flowing out from an inter-refrigerant heat exchanger and introduced into an intermediate pressure section of a compressor. The first pressure detector detects the pressure of the refrigerant flowing out from the inter-refrigerant heat exchanger and introduced into the intermediate pressure section of the compressor. The control device controls the degree of opening of an injection control valve such that the specific enthalpy of the refrigerant as calculated on the basis of the refrigerant temperature detected by the first temperature detector and the refrigerant pressure detected by the first pressure detector becomes a specific enthalpy target value at which the dryness of the refrigerant at a merging point between an injection pipe and the intermediate pressure section of the compressor becomes 1.
This heat pump device includes a low order-side circuit, a high order-side circuit, a water circuit, a use-side terminal, and a control device. The low order-side circuit circulates a first refrigerant. The high order-side circuit circulates a second refrigerant that exchanges heat with the first refrigerant in a refrigerant-to-refrigerant heat exchanger. The water circuit generates warm water through heat exchange with the second refrigerant in a water-refrigerant heat exchanger. The use-side terminal is connected to the water circuit and has a use-side heat exchanger and a flow rate regulation valve. When it is determined that a heat source-side heat exchanger is frosted, the control device controls a refrigerant circuit such that a first four-way valve is switched to start a first defrosting operation, and, if defrosting is not achieved, a second four-way valve is switched to start a second defrosting operation. When starting the first defrosting operation, the control unit controls a circulatory pump and the flow rate regulation valve in order to operate the circulatory pump in a state in which the flow rate regulation valve is open such that warm water flows into the use-side heat exchanger. Provided is a heat pump device that can ensure comfort of the user even during a defrosting operation.
F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
F25B 7/00 - Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
An air conditioner (10) comprises an outdoor apparatus (2) having a compressor (11) and an outdoor heat exchanger (14), an indoor apparatus (3) that has an indoor heat exchanger (22) and heats the inside of a room using heat supplied from the outdoor apparatus (2), a room temperature sensor (37) that detects the temperature in the room, a heat storage circuit (31) that has a heat storage unit (35) and that stores heat generated by the outdoor apparatus (2) in the heat storage unit (35), and a control unit (43), the control unit (43) controlling the compressor (21) so that the value detected by the room temperature sensor (37) reaches a set temperature, and the control unit (43) operating the heat storage circuit (31) when the compressor (11) is driven at a minimum rotation speed and the value detected by the room temperature sensor (37) exceeds the set temperature.
F24F 11/875 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling heat-storage apparatus
F24F 11/86 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
The present invention obtains an air conditioner controller having high visibility of an operating state of an air conditioner, high design quality as a part of an interior, and harmony with the surrounding environment. The controller comprises a main unit including a display unit arranged on a front face, a display unit holder holding the display unit, and a case including a retaining part supporting the display unit holder and a protective part covering an end face connecting a front face and a back face of the display unit provided in front of the retaining part. The display unit holder has ribs provided along a direction in which an outer perimeter of the display unit extends and protruding in a direction that intersects the surface of the display unit, the case has grooves, and the ribs are fitted into the grooves.
The present invention provides an air conditioner controller that offers high visibility of the operational state of an air conditioner, a high design aesthetic as part of the interior, and harmonization with the surrounding environment. The controller comprises a main body on which a display unit is placed, a screen panel fixed to side surface portions of the main body and standing upright from the side surface portions, and a light source provided so as to face an inner end surface, which is located on the space side surrounded by a front surface portion, a back surface portion, and the side surface portions of the main body, among end surfaces connecting between the front surface and the back surface of the screen panel. The screen panel has a first pattern formed on the front surface, and a second pattern formed on the back surface to be coarser than the first pattern. The screen panel is made of a material that allows light irradiated from the light source to pass through. Furthermore, the screen panel comprises an upright portion standing upright from the side surface portions and a light-guiding portion protruding from the upright portion towards the light source, and the light source may be placed to face the light-guiding portion.
An end plate (160T) of a compression part comprises: a central part (181); an annular outer peripheral part (182); a plurality of connecting parts (183) that connect the central part (181) and the outer peripheral part (182); and a plurality of through-holes (184, 184A) that are formed through the end plate (160T) between adjacent connecting parts (183). In the central part (181), a recessed part (193) is formed which has an ejection hole (190T) that ejects a working fluid from the compression part, and a fixation hole (191T) through which a fixation member that fixes a lead valve for opening and closing the ejection hole (190T) to the end plate (160T) is passed. When viewed from an axial direction of a rotating shaft (15), in a fan-shaped region (R) surrounded by a first half line (L1) that has a start point at a center (O1) of a shaft hole (162) and passes through a center (O2) of the ejection hole (190T), a second half line (L2) that has a start point at the center (O1) of the shaft hole (162) and passes through a center (O3) of a fixation hole (191T), and an outer peripheral surface (182a) of the outer peripheral part (182), a through-hole (184A) is formed so as to be continuous in a circumferential direction of the fan-shaped region (R), with both ends of the penetration hole (184A) in the circumferential direction of the fan-shaped region (R) being positioned outside the fan-shaped region (R).
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
Provided is a two-stage refrigeration device that starts up quickly and suppresses reductions in compressor reliability as well as increases in power consumption. The present invention comprises: a high-side refrigerant circuit (2) that includes a high-side first circulation path (17) that connects, in order, a high-side compressor (10), a high-side heat exchanger (11), a high-side expansion valve (12), and a cascade heat exchanger (13) at which heat is exchanged between a high-side refrigerant and a low-side refrigerant; and a low-side refrigerant circuit (3) that connects, in order, a low-side compressor (20), the cascade heat exchanger (13), a low-side expansion valve (21), and a heat source–side heat exchanger (22). The high-side refrigerant circuit (2) also includes: a high-side second circulation path (18) that connects the discharge and intake sides of the high-side compressor (10) via a high-side bypass path (15) and circulates high-side refrigerant discharged from the high-side compressor (10) through the high-side bypass path (15) to the intake side of the high-side compressor (10); and a high-side opening/closing valve (16) that switches the high-side first circulation path (17) or the high-side second circulation path (18).
F25B 7/00 - Compression machines, plants or systems, with cascade operation, i.e. with two or more circuits, the heat from the condenser of one circuit being absorbed by the evaporator of the next circuit
F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
This air conditioner using a non‐azeotropic refrigerant mixture suppresses dew generated due to a temperature difference caused inside an evaporator and a refrigerant sound generated by a refrigerant flowing through the evaporator. The air conditioner comprises: a refrigerant circuit (2) in which a compressor (12), an outdoor heat exchanger (13), an indoor-machine side expansion valve (8), and an indoor heat exchanger (7) are sequentially connected and a non‐azeotropic refrigerant mixture is circulated as a refrigerant; a blower (9) that blows air to the indoor heat exchanger (7); and a control unit (3) that controls the opening of the indoor-machine side expansion valve (8) and the air amount of the blower (9). When a dew generation determination means (20), for determining whether dew is generated due to air passed through the indoor heat exchanger (7), determines that the dew is generated in a cooling operation state or a dehumidification operation state, the control unit (3) controls the opening of the indoor-machine side expansion valve (8) or the air amount of the blower (9) to thereby control the degree of dryness of the refrigerant at the outlet side of the indoor heat exchanger (7) so that enthalpy on the outlet side of the indoor heat exchanger (7) decreases.
F24F 11/86 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
F24F 11/74 - Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
F25B 1/00 - Compression machines, plants or systems with non-reversible cycle
[Problem] To suppress a reduction in the heat exchange amount between a refrigerant and air caused by pressure loss. [Solution] In this indoor unit for an air conditioner, a second heat exchange unit has a high air velocity region in which the air velocity of air passing through the second heat exchange unit is relatively high, and a low air velocity region in which the air velocity of air is relatively low, and the high air velocity region is positioned above the low air velocity region in the direction of gravity. At least one first heat transfer tube is disposed in the high air velocity region, and at least one second heat transfer tube is disposed in the low air velocity region. A first header is connected to each of the first heat transfer tube and the second heat transfer tube. The first header has a first internal space to which the first heat transfer tube and the second heat transfer tube are commonly connected. When using the heat exchanger as a condenser, the refrigerant flowing out from the first heat exchange unit 110 flows into the first internal space of the first head, and then the refrigerant flows into each of the first heat transfer tube and the second heat transfer tube from the first internal space.
A heat pump device has: a refrigerant circuit which is provided with a compressor and through which a refrigerant circulates; a water circuit through which water circulates, which is provided with a flow rate adjustment means for adjusting the flow rate of the water, and which produces hot water by heat exchange between the water and the refrigerant; and a terminal connected to the water circuit. The heat pump device has a first detection unit that detects condensation pressure of the refrigerant in the refrigerant circuit, a second detection unit that detects a hot spring temperature, which is the temperature of water flowing into the terminal, and a control unit that performs a protective operation to adjust the condensation pressure of the refrigerant when the condensation pressure detected by the first detection unit exceeds a pressure threshold. The control unit selects either the compressor or the flow rate adjustment means as the control target for the protective operation on the basis of the hot spring temperature detected by the second detection unit. Provided is a heat pump device capable of appropriately performing a pressure-protecting operation while minimizing any decrease in comfort.
An air conditioner (1) of an embodiment has a compressor (11) that compresses a refrigerant, an indoor apparatus (3) that exchanges heat between indoor air and the refrigerant, an outdoor apparatus (2, 2a) that exchanges heat between outdoor air and the refrigerant, a heat storage unit (35, 67) that exchanges heat with the refrigerant, a room temperature sensor (37) that detects an indoor temperature which is the temperature in a room, and a control unit (43) that drives the compressor (11) on the basis of the difference between the indoor temperature and a set temperature and causes heat exchange to be performed in the heat storage unit (35, 67) when the difference with the set temperature is below a predetermined value.
F25B 13/00 - Compression machines, plants or systems, with reversible cycle
F24F 5/00 - Air-conditioning systems or apparatus not covered by group or
F24F 11/86 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
F24F 11/875 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling heat-storage apparatus
An air conditioner according to an embodiment of the present invention includes: a refrigerant circuit that includes a compressor, a condenser, an expansion valve, and an evaporator and circulates a refrigerant; a temperature detection unit that detects a discharge temperature of the compressor; a pressure calculation unit that calculates a discharge pressure of the compressor; and a control unit that controls an opening degree of the expansion valve such that the discharge temperature reaches a target value and sets the target value to a larger value as the discharge pressure becomes lower.
This heat pump device comprises: a heat source machine that generates hot water using a heat source; a radiant terminal; a forced convection terminal; and a control device. The radiant terminal is connected to the heat source machine, and adjusts the temperature of the indoor space with radiant heat obtained by flowing hot water from the heat source machine into a radiant panel. The forced convection terminal is connected to the heat source machine, flows the hot water from the heat source machine into a user-side heat exchanger, and adjust the temperature of the indoor space by blowing out air that has been heat-exchanged with the hot water in the user-side heat exchanger by means of a blower fan. The control device controls the heat source machine, the radiant terminal, and the forced convection terminal. The control device includes a control unit that controls the forced convection terminal to reduce the airflow of the forced convection terminal compared to the airflow when only the forced convection terminal is operated, when the radiant terminal and the forced convection terminal are operated at the same time. Provided is a heat pump device capable of suppressing a deterioration in user comfort.
F24F 11/64 - Electronic processing using pre-stored data
F24F 11/74 - Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
F24F 11/83 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
An air conditioning system according to the present invention has: an outdoor unit that includes a compressor; a plurality of indoor units that are connected to the outdoor unit by means of refrigerant pipes; a control device that controls the outdoor unit and the plurality of indoor units; and a server device that can communicate with the control device. The server device has: a first prediction unit that predicts room temperatures in air-conditioned spaces where the plurality of indoor units are installed, by using a plurality of operating state quantities related to an air-conditioning operation; and a second prediction unit that uses the room temperatures predicted by the first prediction unit and a set temperature serving as a target value of the air-conditioning operation to predict the points in time when each of the plurality of indoor units reaches reach a thermo-on state and a thermo-off state. The control device has a control unit that controls driving of the compressor in accordance with the points of time when the individual indoor units are set in the thermo-on state or the thermo-off state, by using the prediction results of the second prediction unit. The present invention provides an air conditioning system and the like capable of ensuring user comfort while suppressing power consumption related to air-conditioning operations by reducing the number of stops and restarts of the compressor.
F24F 11/86 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
F24F 11/46 - Improving electric energy efficiency or saving
This hermetic compressor comprises a base member (12) which is welded to a compressor body container and supports the compressor body container. The compressor body container has a bottom shell. The base member (12) has a mounting surface (18) on which the bottom shell is mounted. An opening (19) into which a center portion of the bottom shell is fitted is formed in the center of the mounting surface (18). The base member (12) is joined to the bottom shell by a plurality of welding parts (23) formed at intervals in the circumferential direction of the opening (19). The plurality of welding parts (23) are formed extending by a prescribed length in the circumferential direction of the opening (19), and are positioned between an outer peripheral edge (18a) of the mounting surface (18) and an opening edge (19a) of the opening (18).
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
The refrigeration cycle apparatus (1) includes a refrigerant circuit (2) that includes a flow channel (29a) through which a refrigerant in a liquid single-phase state flows, and a filter member (35) that is provided in the flow channel (29a) and that captures acid contained in the refrigerant, which passes through the flow channel.
An outdoor unit (2) of a heat pump cycle device according to an exemplary embodiment includes a casing (30) having an interior divided into a heat exchange chamber (RA) accommodating an outdoor heat exchanger (13) and an outdoor fan (17) for blowing air into the outdoor heat exchanger (13), and a machine chamber (RB) accommodating an electrical unit (25) for controlling the operation of the outdoor fan (17), wherein: the casing (30) has formed therein a blowout port (41) for blowing to the outside of the casing (30), by means of the rotation of the outdoor fan (17), air that has exchanged heat with a refrigerant in the outdoor heat exchanger (13); and if a surface in which the blowout port (41) is formed is defined as a front surface of the casing (30), the casing (30) is provided with a detachable service panel (40) on a right side surface side positioned on the machine chamber (RB) side.
Provided is a refrigeration cycle device that uses a non-azeotropic refrigerant mixture and is able to suppress the formation of frost on an evaporator. This refrigeration cycle comprises an air conditioner (1) that is equipped with a refrigerant circuit (2) in which a compressor (12), an indoor heat exchanger (7), an expansion valve (14), and an outdoor heat exchanger (13) are sequentially connected, and in which a non-azeotropic refrigerant mixture circulates, and has: a bypass line (17) connected in parallel to a liquid-side pipe (16) connecting the outflow side of the indoor heat exchanger (7) and the inflow side of the outdoor heat exchanger (13); a receiver (22) provided in the bypass line (17); a first flow rate adjustment valve (20) and a second flow rate adjustment valve (21) for adjusting the amount of refrigerant flowing into the receiver (22); and a control unit (3) for controlling the expansion valve (14), the first flow rate adjustment valve (20), and the second flow rate adjustment valve (21). The control unit (3) controls the first flow rate adjustment valve (20) and the second flow rate adjustment valve (21) on the basis of a refrigerant inlet temperature, and adjusts the amount of liquid refrigerant flowing into the outdoor heat exchanger (13).
An outdoor unit (2) of a heat pump cycle device has a housing (30) provided with a machine room (RB) that stores a water-refrigerant heat exchanger (15) for exchanging heat between a refrigerant and water and an electrical unit (25). The water-refrigerant heat exchanger (15) is disposed in a lower portion of the machine room (RB). The housing (30) has a service panel (40) that covers a portion of the machine room (RB) and that is detachable from the housing (30). The service panel (40) is disposed at least in a lower portion of the housing (30) so as to correspond to the region in which the water-refrigerant heat exchanger (15) is stored.
A heat exchanger includes a plurality of flat heat transfer tubes, and a header in which an insertion space is formed, wherein a plurality of first flow channels and a plurality of second flow channels are formed in each of the flat heat transfer tubes, the header includes a convex wall that divides the insertion space into a first space and a second space, a pipe penetration wall portion through which the flat heat transfer tubes pass such that the first flow channels are connected to the first space and the second flow channels are connected to the second space, and an inlet portion that supplies a refrigerant to the first space such that the refrigerant flows toward an inner wall surface of the pipe penetration wall portion that is in contact with the first space, and the convex wall is away from the pipe penetration wall portion.
F28D 7/16 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
Provided is a method for manufacturing a three-phase motor having: a first serial connection part (52A) in which two or more winding parts (45) are connected in series; and a second serial connection part (52B) in which two or more winding parts (45) are connected in series, wherein the first serial connection part (52A) and the second serial connection part (52B) are connected in parallel. This manufacturing method involves continuously drawing and winding a wire (46), thereby forming the entirety of a plurality of winding parts (45) for one phase, wherein in the step of forming the winding parts (45), winding the wire in one circumferential direction when the winding parts (45) are viewed from an inner peripheral side of a yoke part along the radial direction of the yoke part, thereby forming the winding parts (45) included in one serial connection part in the first serial connection part (52A) and the second serial connection part (52B), and winding the wire (46) in the other circumferential direction, thereby forming the winding parts (45) included in the other serial connection part.
H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
H02K 3/52 - Fastening salient pole windings or connections thereto
An outdoor unit (2) of a heat pump cycle device (1) has a housing (30) that houses an outdoor heat exchanger (13) inside, and the housing (30) is provided with a first handle (50) to a fourth handle (53) for transporting the outdoor unit (2). When the housing (30) is viewed from the top, the first handle (50) to the fourth handle (53) are provided at the position where the center of gravity (G) of the outdoor unit (2) exists within a first virtual area (VA) that is formed by connecting adjacent handles.
A housing (30) has: a front panel (36) provided with a blowout port (41) for blowing air heat-exchanged with a refrigerant in an outdoor heat exchanger by the rotation of an outdoor fan (17) to the outside of the housing (30); a top panel (32) disposed above the front panel (36); and a fan guard (42) disposed on the front panel (36) so as to cover the blowout port (41). When the direction in which air is blown out from the blowout port (41) is forward, the front panel (36) is disposed behind a front end (32A) of the top panel (32), and the fan guard (42) is disposed on the front panel (36) with a predetermined gap between a top end (42A) of the fan guard (42) and the top panel (32). The housing (30) is provided with a handhold (50) that is formed between the top end (42A) of the fan guard (42) and the top panel (32) and into which fingers can be inserted to hold the housing (30) during transportation.
The present invention pertains to an operation terminal device provided with a control unit and a user interface part that includes a touch panel. The control unit has a drum roll display control function for displaying an image of a drum roll on the touch panel and executing rotation display control on the drum roll in accordance with a sliding operation by a user performed on the touch panel, a selection element selecting function for selecting one of a plurality of selection elements in response to an operation by the user on the drum roll image, and a command issuing function for issuing a control command in accordance with the selected selection element. The selection element selecting function includes a function for selecting, if the operation by the user is a sliding operation, a selection element that has moved to a selection position in response to the operation, and selecting a selection element at a tap position if the operation by the user is a tap operation at a position other than the selection position in the drum roll image.
G06F 3/0488 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
48.
OPERATION TERMINAL DEVICE AND DISPLAY CONTROL METHOD FOR USER INTERFACE OF SAID OPERATION TERMINAL DEVICE
The present invention is an operation terminal device with which a user controls a main device. The operation terminal device comprises: a control unit; and a user interface unit that is controlled by the control unit, and that includes a touch panel. The control unit has a display control function that controls a display such that one setting screen from among a plurality of setting screens is displayed on the touch panel, and the one setting screen is switched to another setting screen in response to an operation performed by the user on the touch panel. The display control function includes a function in which, when the one setting screen has been switched to the other setting screen, one selection element that is currently set from among a plurality of selection elements, which are provided to the other setting screen and which can be selected by the user, is displayed for a predetermined amount of time, and once the predetermined amount of time has elapsed, other selection elements are displayed in a selectable manner together with the one selection element.
G06F 3/0488 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
H04Q 9/00 - Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
An air conditioner has a refrigerant circuit filled with a predetermined amount of a refrigerant, the circuit being formed of an outdoor unit and an indoor unit connected to each other by refrigerant piping, the outdoor unit having a compressor, an outdoor heat exchanger, and an expansion valve, the indoor unit having an indoor heat exchanger. The conditioner has an estimation model that estimates an amount of remaining refrigerant remaining in the circuit by using at least rotation frequency of the compressor, refrigerant discharge temperature at the compressor, heat exchanger temperature, degree of opening of the expansion valve, and outside air temperature, of operation state quantities indicating operation states during operation. The indoor heat exchanger has a sensor that is provided at an indoor heat exchanger intermediate portion connecting a first indoor heat exchanger port and a second indoor heat exchanger port to each other.
[Problem] To provide an electric motor that can increase heat dissipation. [Solution] An electric motor according to one embodiment of the present invention comprises: a cylindrical resin outer enclosure having an open end on one axial-direction end; a stator provided with a coil and a stator core formed integrally with the resin outer enclosure; a rotor positioned on the inner diameter side of the stator; a metal lid member having an inner surface part covering the open end of the resin outer enclosure, an outer surface part on the opposite side to the inner surface part, and a fin part protruding from the outer surface part in the axial direction; and a metal member positioned on the outer peripheral surface of the resin outer enclosure and thermally connected to the outer peripheral surface of the resin outer enclosure and the lid member.
[Problem] To provide an electric machine with which a space for fastening a metal member to a flange can be secured and the size of the flange can be reduced in a radial direction. [Solution] An electric machine according to one embodiment of the present invention comprises: a lid member that has a first bearing accommodation portion for accommodating a first bearing for supporting a rotary shaft while covering a rotor having the rotary shaft and an opening end portion, the opening end portion being provided at an end on one side of the axial direction of the electric machine, the rotor being placed on a radially-inner side of a stator formed integrally with a resin outer shell having the opening end portion and a tubular portion protruding from a bottom portion, which is provided at an end on the other side of the axial direction, toward the other side; a metal member that allows electrical conduction of a second bearing accommodation portion held by the tubular portion and is placed on the outer peripheral surface of the resin outer shell; and a vibration isolation member mounted to the tubular portion. The second bearing accommodation portion has a flange extending from a cylindrical portion, which accommodates a second bearing for supporting the rotary shaft, toward a radially-outer direction, the tubular portion has a recess on the outer peripheral surface thereof, the vibration isolation member has a protrusion engaging with the recess, and at least a part of a fastening member for fastening the metal member to the flange is positioned in a region overlapping with the recess in the axial direction.
This air conditioner comprises: a human detection sensor that detects the presence and absence of a human in a space to be air-conditioned; and a presence-absence prediction unit that predicts the presence and absence of a human in the space to be air-conditioned. The air conditioner further comprises a control unit that uses a result of detection by the human detection sensor and a result of prediction by the presence-absence prediction unit to switch from an air conditioning operation to a power-saving operation in which power consumption is smaller than in the air conditioning operation. As a result, it is possible to achieve an appropriate power-saving operation.
This air conditioner has a control unit that uses presence/absence information indicating the presence/absence of a user in an air-conditioned space to switch from an air-conditioning operation to a power-saving operation that requires less power consumption than the air-conditioning operation. The control unit switches from the air-conditioning operation to one of a first power-saving operation that prioritizes the comfort of the user and a second power-saving operation that prioritizes the power-saving effect as the power-saving operation. As a result, it is possible to achieve a power-saving operation in which both an improved power-saving effect and comfort of the user can be achieved.
[Object] To provide an electric motor that can be downsized in a rotation axis direction and can also suppress the deformation of a bearing and a bearing house portion along with the deformation of a resin shell.
[Object] To provide an electric motor that can be downsized in a rotation axis direction and can also suppress the deformation of a bearing and a bearing house portion along with the deformation of a resin shell.
[Solving Means] An electric motor according to an aspect of the present invention includes: a columnar rotor; a shaft disposed along a rotation axis of the rotor; a cylindrical stator core disposed on an outer circumferential side of the rotor; a resin shell that covers the stator core; a bearing that rotatably supports the shaft; and a bearing house portion that stores the bearing. The resin shell includes an annular portion integral with the stator core, and an end surface portion connected to an end portion of the annular portion and expanding from the annular portion to an inner circumferential side. The end surface portion includes a connection portion to be connected to the bearing house portion. The bearing house portion includes a tubular portion and a flange portion extending from an end of the tubular portion to the outer circumferential side in the radial direction. An outer circumferential edge portion of the flange portion is fixed to the connection portion of the resin shell.
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
[Object] To provide a permanent magnet electric motor that can be downsized in a rotation axis direction and can also suppress a leakage flux.
[Object] To provide a permanent magnet electric motor that can be downsized in a rotation axis direction and can also suppress a leakage flux.
[Solving Means] The permanent magnet electric motor includes: a columnar rotor including a permanent magnet portion annularly disposed; a shaft disposed along a rotation axis of the rotor; a cylindrical stator core disposed on an outer circumferential side of the rotor; a main body including a shell integrally formed with the stator core; a bracket attached to one end side of the main body; and a bearing that rotatably supports the shaft. The bracket includes a bearing house portion that stores the bearing, and a non-magnetic portion that is connected to the bearing house portion. The bearing house portion is disposed on an inner diameter side relative to the permanent magnet portion as viewed from an axis direction of the rotation axis, and an edge portion of the bearing house portion on an outer diameter side is covered with the non-magnetic portion.
H02K 5/173 - Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields using bearings with rolling contact, e.g. ball bearings
H02K 1/30 - Means for mounting or fastening rotating magnetic parts on to, or to, the rotor structures using intermediate parts, e.g. spiders
H02K 21/14 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
F16C 32/04 - Bearings not otherwise provided for using magnetic or electric supporting means
A heat exchanger includes a plurality of flat heat transfer tubes and a header, wherein the header includes an inflow plate that divides an interior portion of the header into an inflow portion and a circulation portion located on an upper side of the inflow portion, a first partition member that divides the circulation portion into ascending path to which the flat heat transfer tubes are connected and a descending path, that forms an upper communication path that communicates the ascending path and the descending path on an upper side of the circulation portion, and a lower communication path that communicates the ascending path and the descending path on a lower side of the circulation portion, and the inflow plate includes a first ejection hole that ejects, on the ascending path side and a downwind side, a refrigerant from the inflow portion to the ascending path.
F28D 1/053 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or mo with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
F28F 1/02 - Tubular elements of cross-section which is non-circular
The remote device includes at least an arithmetic processing unit and software that controls the arithmetic processing unit. The software of the main body device includes a hardware access layer including a driver group that drives each piece of hardware, a control layer that controls the hardware group via the driver group, and a main body device-side function layer that accepts an order to the main body device and outputs an instruction to the control layer. The software of the remote device includes a remote device-side function layer that accepts an order to the main body device and outputs an instruction to the control layer via the main body device-side function layer. A function execution program that executes a function provided by the main body device is placed in at least one of the main body device-side function layer and the remote device-side function layer.
A compressor includes a shaft that is arranged along a rotation axis, a compression unit that drives along with rotation of the shaft, a rotor core that is fixed to the shaft, a plurality of permanent magnets that are embedded inside the rotor core, and a stator that causes the rotor core to rotate about the rotation axis, wherein a plurality of eccentric holes for adjusting balance when the shaft rotates are formed in the rotor core, and the plurality of eccentric holes are formed on an inner side of the polygonal region for which midpoints of sides at a side of the rotation axis among sides formed by side surfaces of the plurality of permanent magnet in a cross section perpendicular to the rotation axis serve as vertices.
An air conditioner according to one embodiment of the present invention comprises: a refrigerant circuit which has a compressor, an outdoor heat exchanger, an indoor heat exchanger, a decompressor that is disposed between the outdoor heat exchanger and the indoor heat exchanger, and a flow path switcher that switches the flow direction of refrigerant discharged from the compressor; an outdoor fan which blows air toward the outdoor heat exchanger; and a control device which sets an indicated rotational speed which is the rotational speed at which the outdoor fan is driven. The control device, upon assessing that a prescribed defrosting initiation condition is satisfied during a heating operation, executes a process to stop the outdoor fan while gradually reducing the indicated rotational speed.
An air conditioner according to one aspect of the present invention comprises: a refrigerant circuit having a compressor, an outdoor heat exchanger, an indoor heat exchanger, and a pressure reducer that is disposed between the outdoor heat exchanger and the indoor heat exchanger; an outdoor fan that blows air to the outdoor heat exchanger; an indoor fan that blows air to the indoor heat exchanger; and a control device that sets the upper limit of the rotational speed of the outdoor fan according to the rotational speed of the indoor fan.
F24F 11/871 - Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
F24F 1/52 - Inlet and outlet arranged on the same side, e.g. for mounting in a wall opening
Provided is a rotary compressor excellent in energy saving performance and reliability that can suppress over-compression of a compressed refrigerant compressed in a compression chamber. A rotary compressor includes a discharge port provided on an end plate and partially located outside a cylinder inner wall and a discharge groove provided on the cylinder inner wall and communicating with a compression chamber and the discharge port, the compression chamber compressing a refrigerant by contracting as an annular piston revolves, in which the discharge port faces an end portion of a vane groove on the cylinder inner wall on the compression chamber side.
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
64.
Rotary compressor with an oil groove facing the vane and exposed to a gap between the vane and the piston
Provided is a rotary compressor excellent in energy saving performance and reliability by improving sliding performance of a sliding portion and ensuring sealability in a working chamber. An oil groove is formed at a position facing a vane end face on an end plate. The oil groove communicates with an inside of a sealed container, and is exposed in a gap between a leading end surface of a vane and an outer peripheral surface of an annular piston formed when the leading end surface of the vane is in abutment on the outer peripheral surface of the annular piston.
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
[Problem] To provide an air conditioner having sufficient thermal insulation capabilities without affecting installation characteristics during installation of the air conditioner in a housing. [Solution] This air conditioner comprises an indoor unit having an indoor heat exchanger, an outdoor unit having an outdoor heat exchanger connected to the indoor heat exchange through refrigerant piping, and an outer housing accommodating at least the outdoor unit. The air conditioner is attached to a building wall partitioning an outdoor space and an indoor space. The outer housing is fitted into a wall communication hole that is formed in the building wall and that causes the outdoor space and the indoor space to communicate, and the outdoor housing has an inner space in which the outdoor unit can be disposed. The inner space opens to the outdoor space. The outdoor unit is disposed in the inner space of the outer housing. A thermal insulation material is disposed in the inner space of the outer housing, and a space is formed between the outer housing and the thermal insulation material.
[Problem] To provide an air conditioner with sufficient thermal insulation performance without affecting the ease of installation of the air conditioner in a housing. [Solution] This air conditioner comprises: an indoor unit having an indoor heat exchanger; an outdoor unit having an outdoor heat exchanger that is connected to the indoor heat exchanger through refrigerant piping; and an outer housing that accommodates at least the outdoor unit. This air conditioner is mounted to a building wall that divides the outdoor space from the indoor space. The outer housing is fitted into a wall communication hole that is formed in the building wall and provides communication between the outdoor space and the indoor space, and has an interior space where the outdoor unit can be disposed. The interior space opens into the outdoor space. The outdoor unit is disposed in the interior space of the outer housing. A heat-insulating material is disposed in the interior space of the outer housing. The heat-insulating material has at least a first heat-insulating section that is disposed on the outdoor space side and a second heat-insulating section that is disposed on the indoor space side and removable.
An air conditioner capable of satisfactorily preventing noise from entering an indoor space includes: an indoor unit that is fixed to a wall surface of an indoor space and houses an indoor heat exchanger; and an outdoor unit that houses an outdoor heat exchanger connected to a refrigerant circuit that includes the indoor heat exchanger. The outdoor unit includes an outside casing that is fitted into an opening formed in a building wall partitioning an outdoor space and the indoor space from each other and defines an internal space that is open to the outdoor space and isolated from the indoor space by being surrounded by a sound insulation wall, and an inside casing that is disposed in the internal space and houses the outdoor heat exchanger.
This air conditioner comprises: an outdoor unit having a compressor, an outdoor heat exchanger, and an expansion valve; and an indoor unit having an indoor heat exchanger. This air conditioner has a refrigerant circuit that is formed by the outdoor unit and the indoor unit being connected by refrigerant piping, and can perform at least heating operation in which the indoor heat exchanger functions as a condenser for refrigerant compressed by the compressor and the outdoor heat exchanger functions as an evaporator for the refrigerant condensed by the indoor heat exchanger. This air conditioner has an estimation unit that estimates the amount of refrigerant remaining in the refrigerant circuit using at least an operating state amount for the air conditioner in heating operation. The estimation unit includes a plurality of different estimation models corresponding to the range of the amount of refrigerant remaining in the refrigerant circuit, and at least one of the plurality of estimation models uses the degree of undercooling of the refrigerant at the outlet of the indoor side heat exchanger as the operating state amount. As a result, the amount of refrigerant can be determined at desired timing without being affected by the remaining amount of refrigerant.
F24F 11/49 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
F24F 11/54 - Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
F24F 11/61 - Control or safety arrangements characterised by user interfaces or communication using timers
F24F 11/64 - Electronic processing using pre-stored data
F25B 6/02 - Compression machines, plants or systems, with several condenser circuits arranged in parallel
F24F 140/00 - Control inputs relating to system states
A heat exchanger includes a plurality of flat heat transfer tubes and a header, wherein each of the flat heat transfer tubes internally includes a plurality of windward channels and a plurality of leeward channels that are arranged on a leeward side of the windward channels, the header includes a main body unit having an internal space that is connected to the windward channels and the leeward channels, a partition member that separates the internal space into a windward side space at a side of ends of the windward channels and a leeward side space at a side of ends of the leeward channels, and an inflow portion that supplies a refrigerant to the lower portion of the leeward side space, and an upper side communication path that allows communication between the leeward side space and the windward side space is formed in an upper portion of the partition member.
F28D 7/16 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
F28F 1/04 - Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
A heat exchanger includes a plurality of flat heat transfer tubes and a header, wherein, in an interior portion of each of the plurality of flat heat transfer tubes, a plurality of upwind side channels and a plurality of downwind side channels are formed, the header includes a main body portion in which an interior portion space connected to the plurality of upwind side channels and the plurality of downwind side channels is formed, a partition member that divides the interior portion space into an upwind side space, and a flow inlet/outlet port that supplies a refrigerant to a lower part of the upwind side space, and, at a lower part of the partition member, a lower communication path that communicates the downwind side space and the upwind side space is formed.
F28D 7/16 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
F28F 1/04 - Tubular elements of cross-section which is non-circular polygonal, e.g. rectangular
This hermetic compressor (1) comprises: a vertically-oriented cylindrical compressor main body vessel (10) provided with a discharge pipe (107) and an intake pipe (104) for a refrigerant; an accumulator vessel (25) connected to the intake pipe (104); a compressing unit (12) which is disposed inside the compressor main body vessel (10) and which compresses refrigerant taken in from the accumulator vessel (25) through the intake pipe (104) and discharges the refrigerant from the discharge pipe (107); and a motor (11) which is disposed inside the compressor main body vessel (10) to drive the compressing unit (12). The accumulator vessel (25) includes a cup-shaped accumulator shell (26), and an opening side (28b) of the accumulator shell (26) is joined to the compressor main body vessel (10). A partitioning member (28) for partitioning the interior of the accumulator shell (26) is provided in said interior, and a heat insulating portion (35) that blocks heat transfer from the compressor main body vessel (10) to the accumulator vessel (25) and has a hollow internal space (35a) is formed between the partitioning member (28) and a bottom shell (26) of the compressor main body vessel (10).
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
A compressor includes a stator core that includes a yoke portion and a teeth portion, a rotor that is arranged inside the stator core, a compression unit that compresses a refrigerant along with rotation of the rotor relative to the stator core, a container that has an internal space in which the stator core and the compression unit are arranged, a winding that is wound around the teeth portion, and an insulating film that is arranged in the slot so as to separate the winding from the stator core, wherein a welding portion that is fixed to the container by welding is formed on a side surface of the yoke portion on an outer diameter side, and a sheet that is sandwiched between the yoke portion and the insulating film is arranged in the slot that corresponds to the welding portion in a circumferential direction of the stator core.
H02K 3/34 - Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
F04B 35/04 - Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
A heat exchanger (5) includes a plurality of flat heat transfer tubes (11) and a header (12), wherein the header (12) includes a first partition member (21) that separates an internal space of a main body unit (20) into a refrigerant inflow portion (24) and an upper portion (25), a second partition member (22) that separates the upper portion (25) into a connected portion (26) connected to the plurality of flat heat transfer tubes (11) and an opposite portion (27), and a third partition member (23) that separates the opposite portion (27) into a windward portion (28) and a leeward portion (29) a plurality of windward communication holes (35) and a plurality of leeward communication holes (36) that allow communication from the windward portion (28) and the leeward portion (29) to the connected portion (26) are arranged the second partition member (22) an adjustment channel (30) that distributes the refrigerant from the refrigerant inflow portion (24) to the windward portion (28) and the leeward portion (29) and that increases a flow rate of the plurality of windward communication holes (35) as compared to a flow rate of the plurality of leeward communication holes (36) is arranged in the header (12).
F28D 1/053 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or mo with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
A lower end plate cover is provided with a bulging portion. In a circumferential direction of a rotary shaft, a plurality of bolt holes includes a first bolt hole arranged between a distal end portion and a proximal end portion of the lower discharge valve, a second bolt hole arranged in a position adjacent to the first bolt hole on a side close to a lower vane groove with respect to the first bolt hole, and a third bolt hole arranged in a position adjacent to the first bolt hole on a side away from the lower vane groove with respect to the first bolt hole. When the bulging portion is divided into a first bulging portion and a second bulging portion using a first straight line, the first bulging portion is larger than the second bulging portion.
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
A rotary compressor (1) includes a hermetically sealed compressor housing (10) that is provided with a refrigerant discharge portion (107) and refrigerant suction portions (104, 105), a compression unit (12) that is arranged in the compressor housing (10) and compresses a refrigerant, sucked from the suction portions (104, 105), and discharges it from the discharge portion (107), a motor (11) that is arranged in the compressor housing (10) and drives the compression unit (12), an accumulator that is connected to the suction portions (104, 105), and a mounting member (50) that secures the accumulator to the compressor housing (10). The compressor housing (10) and an accumulator container (26) of the accumulator are made of a metal material. The mounting member (50) is at least partially made of a resin material and has a first joint portion (J1), which is joined to an outer peripheral surface (10a) of the compressor housing (10).
F04C 2/344 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F25B 31/02 - Compressor arrangements of motor-compressor units
F25B 43/00 - Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
A rotary compressor includes a compressor housing that is provided with a refrigerant discharge portion and a refrigerant suction portion, and an accumulator that is fixed to the outer peripheral surface of the compressor housing and connected to the suction portion. The accumulator has a cylindrical body portion, which is formed of a resin material, an upper portion, which is formed of a metal material and closes an upper end of the body portion, and a lower portion, which is formed of a metal material and closes a lower end of the body portion, the upper portion is joined to the upper end of the body portion, and the lower portion is joined to the lower end of the body portion.
A compression unit of a rotary compressor includes a cylinder, an upper end plate that closes the upper side of the cylinder, a lower end plate that closes the lower side of the cylinder, and a piston that is fitted to a rotating shaft, revolves along an inner peripheral surface of the cylinder, and forms a cylinder chamber in the cylinder. At least one of an end face of the piston in the axial direction of the rotating shaft, a sliding surface of the upper end plate that slides with the end face of the piston, and a sliding surface of the lower end plate that slides with the end face of the piston, has formed therein an oil-film retention region having an array of a plurality of recessed portions that retain lubricating oil.
F04C 18/356 - Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups , , , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the outer member
F04C 2/344 - Rotary-piston machines or pumps having the characteristics covered by two or more of groups , , , or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group or and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
F04C 23/00 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
A hermetically sealed compressor (1) comprises: a vertically-oriented cylindrical compressor main body vessel (10) provided with a discharge pipe (107) and an intake pipe (104) for a refrigerant; an accumulator vessel (25) connected to the intake pipe (104); a compressing unit (12) which is disposed inside the compressor main body vessel (10) and which compresses refrigerant taken in from the accumulator vessel (25) through the intake pipe (104) and discharges the refrigerant from the discharge pipe (107); and a motor (11) which is disposed inside the compressor main body vessel (10) to drive the compressing unit (12). The accumulator vessel (25) includes a cup-shaped accumulator shell (26), and a welded portion (X) where an opening side (26a) of the accumulator shell (26) is joined to the compressor main body vessel (10). A partitioning member (28) for partitioning the interior of the accumulator shell (26) is provided in said interior, and a heat insulating portion (35) for blocking heat transfer from the compressor main body vessel (10) to the accumulator vessel (25) is formed between the partitioning member (28) and a bottom shell (10c) of the compressor main body vessel (10). A heat insulating member (36) is provided in the heat insulating portion (35).
F04C 29/00 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
A heat exchanger includes an inlet header in which a first inlet space and a second inlet space are formed, a plurality of first inlet-side heat exchanger tubes that are connected to the first inlet space, a plurality of second inlet-side heat exchanger tubes that are connected to the second inlet space, a return header in which a plurality of first return spaces connected to the first inlet-side heat exchanger tubes, respectively, and a plurality of second return spaces connected to the second inlet-side heat exchanger tubes, respectively, are formed, and a plurality of outlet-side heat exchanger tubes that are connected to the first and second return spaces, respectively, wherein a communication path that enables a first return space on a bottom side among the first return spaces and a second return space on a top side among the second return spaces to communicate is formed in the return header.
F28D 1/047 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or mo with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
A hermetic compressor (1) comprises a vertically placed cylindrical compressor body container (10) provided with a refrigerant discharge pipe (107) and intake pipe (102), an accumulator container (25) connected to the intake pipe (102), a compression section (12) that is disposed inside the compressor body container (10) and that compresses refrigerant taken in from the accumulator container (25) through the intake pipe (102) and discharges the compressed refrigerant from the discharge pipe (107), and a motor (110 that is disposed inside the compressor body container (10) and that drives the compression section (12). The hermetic compressor (1) comprises the accumulator container (25) having a cup-shaped accumulator shell (26) of which an open side (26a) is joined to the compressor body container (10), a leg member (309) that is fixed to the outer peripheral surface of the compressor body container housing (10) and that supports the compressor body container (10) and the accumulator container (25), and an elastic body (311) that supports the leg member (309).
A motor control device capable of improving damping effects of a motor. In a motor control device, a control switching determination unit determines whether or not a control region of a motor is in a voltage saturation region. A voltage command value generator generates a voltage command value of the motor based on a velocity command value and a velocity of the motor. When the control switching determination unit determines that the control region of the motor is in the voltage saturation region, the voltage command value generator determines a voltage vector angle of an output voltage applied to the motor from a total torque command value and a limit value of the maximum voltage capable of being output to the motor, and generates a voltage command value based on the voltage vector angle.
H02P 21/05 - Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation specially adapted for damping motor oscillations, e.g. for reducing hunting
A compressor body container (10) has a vertical cylindrical main shell (10a), a cup-shaped top shell (10b), and a cup-shaped bottom shell (10c), and the interior of the main shell (10a) is sealed by fixing the open side of the top shell (10b) to the upper end portion of the main shell (10a) by welding at a first welding portion (V), and fixing the open side (10d) of the bottom shell (10c) to the lower end portion of the main shell (10a) by welding at a second welding portion (W). An accumulator container (25) has a cup-shaped accumulator shell (26), and the interior of the accumulator shell (26) is sealed by welding the open side (26a) of the accumulator shell (26) to the opening opposing side (10e) of the bottom shell (10c) at a third welding portion (X) below the position of the second welding portion (W) of the compressor body container (10).
An air conditioner of the present embodiment includes a heat exchanger unit in which an installation position of a suction temperature sensor can be changed and the air conditioner is capable of determining whether the installation position of the suction temperature sensor is correct. During a cooling operation, a heat exchange temperature is lower than a suction temperature, and during a heating operation, the heat exchange temperature is higher than the suction temperature. However, if a suction temperature sensor is incorrectly disposed on a downstream side of a flow of air in an indoor heat exchanger, the suction temperature detected by the suction temperature sensor is a temperature of indoor air after exchanging heat with a refrigerant in the indoor heat exchanger, so that the heat exchange temperature and the suction temperature are close to each other regardless of the cooling operation or the heating operation.
F24F 11/49 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
F24F 11/64 - Electronic processing using pre-stored data
In an air conditioner of the present embodiment capable of selecting either a fan rotation speed determined on the basis of a static pressure value and an air volume or a required fan rotation speed, motor control means determines, on the basis of the static pressure Pt, the fan rotation speed Rm of a fan motor that provides the air volume Av required by the user, and transmits the determined fan rotation speed Rm to an indoor unit control means. When the fan rotation speed Rm received from the motor control means is a prohibited rotation speed, the indoor unit control means transmits a correction fan rotation speed different from the prohibited rotation speed to the motor control means, and the motor control means drives the fan motor at the received correction fan rotation speed.
F24F 11/74 - Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
A rotor core of a rotor includes a salient pole portion; air gap portions that extend from the permanent magnet to an outer peripheral surface of the rotor core; notch grooves formed such that the outer peripheral surface of the rotor core is notched; and a bridge portion that is formed between the outer peripheral surface and the air gap portions. The notch grooves are disposed such that the bridge portion is sandwiched between the notch grooves and the air gap portion, and, a notch minimum outside diameter portion in which a distance from the rotation center of the rotor core is the minimum is formed on a plane perpendicular to a rotation axis. The notch minimum outside diameter portion is located at a position closer to a center side of the salient pole portion than the air gap portions in the circumferential direction of the rotor.
Hot water heating installations and their parts and
fittings; hot air apparatus; heating boilers; air purifying
apparatus and machines; ionization apparatus for the
treatment of air or water; air deodorizing apparatus;
air-conditioning apparatus and their parts and fittings;
air-conditioning installations and their parts and fittings;
filters for air conditioning; air cooling apparatus; heating
apparatus for solid, liquid or gaseous fuels; dehumidifiers;
underfloor heating apparatus and installations; heating
apparatus, electric; deodorising apparatus, not for personal
use; heating apparatus; heating installations; heat
exchangers, other than parts of machines; refrigerating
appliances and installations; refrigerating apparatus and
machines; cooling apparatus; electric cooling apparatus for
personal use; small-sized air-conditioning apparatus;
portable air-conditioning apparatus; air conditioners for
industrial purposes; freezing machines and apparatus for
industrial purposes; cooking apparatus and installations for
commercial use; industrial dish drying apparatus and
installations; dish disinfectant apparatus for industrial
purposes; kitchen sinks for industrial purposes; household
electrothermic appliances for cooking, drying and freezing;
warming pans, non-electric; pocket warmers; hot water
bottles.
88.
AIR CONDITIONING SYSTEM, ABNORMALITY ESTIMATION METHOD FOR AIR CONDITIONING SYSTEM, AIR CONDITIONER AND ABNORMALITY ESTIMATION METHOD FOR AIR CONDITIONER
This air conditioner has a refrigerant circuit configured such that at least one indoor unit is connected to an outdoor unit with refrigerant piping. The air conditioner has a detection unit which detects a state quantity relating to control of the air conditioner, and an acquisition unit which acquires the state quantity detected value detected by the detection unit. Furthermore, the air conditioner has an abnormality estimation unit which, when the state quantity relating to an abnormality in the refrigerant circuit is set to the feature quantity, uses the detected value of said feature quantity to estimate the occurrence of an abnormality in the refrigerant circuit. The abnormality estimation unit estimates the occurrence of abnormalities in the refrigerant circuit for each pair consisting of one indoor unit and the outdoor unit, and, in the case of estimating that an abnormality has occurred in any pair, estimates that the abnormality has occurred in the indoor unit of said pair. Furthermore, in the case of estimating that an abnormality has occurred in all pairs, the abnormality estimation unit estimates that the abnormality has occurred in the outdoor unit. As a result, it is possible to detect whether an abnormality has occurred in an indoor unit or the outdoor unit.
This blower (1) is provided with a cross-flow fan (8), a mechanism which rotates the cross-flow fan (8) about a rotation axis (16), a front-side tongue part (14) which is arranged on the front side of the cross-flow fan (8), and a back-side tongue part (15) which is arranged on the back side of the cross-flow fan (8), wherein the front-side, fan-facing surface (54) of the front-side tongue part (14) that faces the cross-flow fan (8) has multiple front-side uneven areas (58) which are formed unevenly, and multiple front-side flat areas (59) where no unevenness is formed; the back-side, fan-facing surface (64) of the back-side tongue part (14) that faces the cross-flow fan (8) has multiple back-side uneven areas (65) which are formed unevenly, and multiple back-side flat areas (66) where no unevenness is formed; the back-side uneven areas (65) face the front-side flat areas (59), and the back-side flat areas (66) face the front-side uneven areas (58).
F04D 17/04 - Radial-flow pumps specially adapted for elastic fluids, e.g. centrifugal pumps; Helico-centrifugal pumps specially adapted for elastic fluids having non-centrifugal stages, e.g. centripetal of transverse-flow type
[Problem] To provide an electric motor capable of ensuring insulation between a circuit board and a heat sink while achieving miniaturization of the motor in the axial direction. [Solution] An electric motor according to an embodiment of the present invention comprises: a heat sink that covers an opening end of a cylindrical resin outer shell; a circuit board that is disposed in an internal space covered with the resin outer shell and the heat sink; and a heat transfer member that exhibits electric insulation and that is disposed between the heat sink and the circuit board. The heat sink has: a disk that abuts against the opening end of the resin outer shell; an annular protrusion that protrudes from the disk toward the circuit board side in the axial direction; and a projection that is disposed closer to an inner-diameter side than the annular protrusion and that projects from the disk toward an electronic component. The heat transfer member has a heat transfer part held between the electronic component and the projection, and a peripheral edge part that is provided outside the heat transfer part and that is positioned outside the outer peripheral edge of the electronic component as seen from the axial direction.
Provided is a heat exchanger with which a decrease in a heat exchange amount due to a non-uniform wind speed distribution can be suppressed. The heat exchanger comprises: an inlet header (20); an outlet header (21); a plurality of chambers (31) partitioned by partitioning panels (30) on the inside of the inlet header (20); a plurality of flat tubes (22) that are arranged in parallel and connected to the chambers (31) and the outlet header (21); a distributor (25) provided to a refrigerant pipe (10); and a plurality of branching pipes (24) connected to the chambers (31) and the distributor (25). In accordance with a wind speed distribution, branching sections (27) are provided to the branching pipes (24) between the chambers (31) and the distributor (25). The number of branching sections (27) of a branching pipe (24) that is connected to a chamber (31) to which a flat pipe (22) positioned at a portion with a high wind speed is connected is less than the number of branching sections (27) of a branching pipe (24) that is connected to a chamber (31) to which a flat pipe (22) passing through a portion with a low wind speed is connected.
F24F 1/18 - Heat exchangers specially adapted for separate outdoor units characterised by their shape
F24F 1/50 - Component arrangements in separate outdoor units characterised by airflow, e.g. inlet or outlet airflow with outlet air in upward direction
92.
AIR-CONDITIONING SYSTEM, REFRIGERANT AMOUNT ESTIMATION METHOD FOR AIR-CONDITIONING SYSTEM, AIR CONDITIONER, AND REFRIGERANT AMOUNT ESTIMATION METHOD FOR AIR CONDITIONER
This air-conditioning system has: an air conditioner, which has refrigerant circuit formed by connecting at least one indoor unit to an outdoor unit by means of refrigerant piping, with a prescribed amount of refrigerant filling the refrigerant circuit; and a server, which is communicably connected with the air conditioner. The air conditioner has a first communication unit that detects a state quantity associated with control of the air conditioner, acquires a detected detection value, and transmits the acquired detection value to the server. The server has: a second communication unit that receives the detection value from the air conditioner; an estimation unit that, when a state quantity related to the amount of refrigerant filling the refrigerant circuit is set as a first characteristic amount, uses a detection value of the first characteristic amount to estimate a remaining refrigerant amount of the refrigerant remaining in the refrigerant circuit; and an discrimination unit that discriminates whether the detection value of the first characteristic amount is a detection value that should be used to estimate the remaining refrigerant amount. Consequently, an estimation accuracy for the remaining refrigerant amount can be increased even in a situation in which a characteristic amount used to estimate the remaining refrigerant amount is influenced by another defect.
F24F 11/49 - Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring ensuring correct operation, e.g. by trial operation or configuration checks
F24F 11/58 - Remote control using Internet communication
F24F 11/62 - Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
F25B 49/02 - Arrangement or mounting of control or safety devices for compression type machines, plants or systems
This air-conditioning device is provided with a cross-flow fan (8), a supporting brace (6), a heat exchanger (3) arranged between the supporting brace (6) and the cross-flow fan (8), and a mechanism for rotating the cross-flow fan (8) about a rotational axis (16), thereby causes air to pass through the heat exchanger (3), wherein at least a portion of the supporting brace (6) is arranged along a straight line inclined with respect to the rotational axis (16).
F24F 1/0073 - Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement of filters
F04D 17/04 - Radial-flow pumps specially adapted for elastic fluids, e.g. centrifugal pumps; Helico-centrifugal pumps specially adapted for elastic fluids having non-centrifugal stages, e.g. centripetal of transverse-flow type
[Problem] To provide an electric motor capable of stably dissipating heat generated from a circuit board. [Solution] The electric motor according to the one embodiment of the present invention comprises: a heat sink that covers an opening end portion of a cylindrical resin outer shell; and a circuit board disposed in an internal space covered by the resin outer shell and the heat sink. The heat sink has: a disc portion; an annular protruding portion that protrudes from the disc portion toward the circuit board side in the axial direction; and a projecting portion which is disposed on the inner diameter side of the resin outer shell relative to the annular protruding portion and which protrudes from the disc portion toward the circuit board side to come into thermal contact with the circuit board. The disc portion has an axial-direction positioning portion that abuts against the opening end portion of the resin outer shell, and the annular protruding portion has a radial-direction positioning portion that abuts against the inner peripheral surface or outer peripheral surface of the resin outer shell.
[Problem] To provide a motor which achieves downsizing and in which an insulating sheet that covers a circuit board is prevented from making contact with a resin outer contour. [Solution] A motor according to one aspect of the present invention comprises: a lid member which covers an opening end section of an outer contour of a cylindrical resin; a circuit board which is disposed in an inner space covered by the resin outer contour and the lid member and has an electronic component; an insulating sheet having a peripheral edge section positioned further outside than the outer peripheral edge of the electronic component when viewed in an axial direction; and an accommodation part which is formed to be recessed from the inner peripheral surface side of the resin outer contour toward the outer diameter side and accommodates a part of the peripheral edge section of the insulating sheet.
Provided is an air conditioner with a refrigerant sensor installed in a room, the air conditioner making it possible to reduce the amount of refrigerant leakage while limiting the installation cost of shutoff valves. The present invention comprises: a liquid-side shutoff valve (16) that is connected between an outdoor heat exchanger (13) and an indoor-unit-side expansion valve (36); a gas-side shutoff valve (17) that is connected between an indoor heat exchanger (35) and a compressor (11); a bypass path (18) that has one end connected between the liquid-side shutoff valve (16) and the indoor-unit-side expansion valve (36) and the other end connected between the gas-side shutoff valve (17) and the compressor (11); and a bypass solenoid valve (19) that opens and closes the bypass path (18).
This three-phase electric motor comprises a stator core, an insulator, and a plurality of coils. The stator core has a plurality of teeth. The insulator has a plurality of winding drums and is in contact with axial-direction end parts of the stator core. The coils are wound around the teeth and the winding drums. Among the plurality of coils, coils having the same phase are wired by series wiring and are formed from a single conductive wire including a crossover wire. The insulator has formed therein a plurality of slits through which the crossover wire is passed. Among the plurality of slits, the deepest slit having the greatest depth is provided such that at least a part thereof is positioned further outward in the circumferential direction than an extension region in which a deep-groove-compatible winding drum around which is wound a deep-groove-compatible coil, the crossover wire of which is drawn through the deepest slit, is virtually extended radially outward.
H02K 3/46 - Fastening of windings on the stator or rotor structure
F04B 39/00 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups
H02K 3/52 - Fastening salient pole windings or connections thereto
air-conditioning apparatus and their parts and fittings; air-conditioning apparatus [for industrial purposes]; electric heating equipment for household use; air purification germicidal lamps; other germicidal lamps; light bulbs and lighting equipment; air sterilizers; air purifiers; disinfection equipment; ultraviolet irradiation device; ultraviolet sterilizers; ultraviolet ray lamps, not for medical purposes; air deodorizers.
A stator includes a stator core which is annular and in which a plurality of metal plates are layered. The stator core includes a plurality of swaging portions, in which the metal plates are joined by swaging. A heat insulation space that blocks heat, which is transmitted from a welding portion, is formed in a swaging portion that is arranged in a position corresponding to the welding portion in a circumferential direction of the stator core among the swaging portions.
H02K 21/16 - Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having annular armature cores with salient poles
F25B 31/02 - Compressor arrangements of motor-compressor units
air-conditioning apparatus and their parts and fittings; air-conditioning apparatus [for industrial purposes]; electric heating equipment for household use; air purification germicidal lamps; other germicidal lamps; light bulbs and lighting equipment; air sterilizers; air purifiers; ultraviolet irradiation device; disinfection equipment; ultraviolet sterilizers; ultraviolet ray lamps, not for medical purposes; air deodorizers.
