Provided in the present application are a rotor assembly, a permanent magnet motor, and a compressor. The rotor assembly comprises a rotor core, comprising through holes; and permanent magnets arranged in the through holes, each permanent magnet comprising: a non-diffusion portion and a diffusion portion, the diffusion portion and at least part of the non-diffusion portion being arranged side by side in a first direction, the first direction being perpendicular to a rotary shaft of the rotor core, and the mass ratio of heavy metal elements in the diffusion portion being greater than the mass ratio of heavy metal elements in the non-diffusion portion. Therefore, a diffusion region having an advanced demagnetization resistance capability is formed in a partial region of a permanent magnet and thus the local demagnetization resistance capability of the permanent magnet is improved by means of the diffusion region, thereby enhancing the overall demagnetization resistance capability of the rotor assembly, reducing the possibility of irreversible demagnetization occurring to the rotor assembly, ensuring the long-time reliable operation of a permanent magnet motor and an associated product, and prolonging the service life of the product.
The present application provides a rotor assembly, a permanent magnet motor, and a compressor. The rotor assembly comprises: a rotor iron core comprising a through hole; and a permanent magnet provided in the through hole, the permanent magnet being cut out by means of a surface perpendicular to the axis of the rotor iron core to obtain a first section, an included angle between the extension direction of the permanent magnet and the radial direction of the rotor iron core is greater than 0° and less than 90° on the first section, and the permanent magnet comprising: a non-diffusion portion, the non-diffusion portion comprising a first end and a second end in an extension direction, the first end being close to the circumferential side surface of the rotor iron core, and the second end being close to the axis of the rotor iron core; a first diffusion portion connected to the first end of the non-diffusion portion; and a first magnetic isolation bridge connected to the first diffusion portion and located between the first diffusion portion and the circumferential side surface of the rotor iron core, wherein the mass proportion of heavy metal elements in the first diffusion portion is greater than the mass proportion of the heavy metal elements in the non-diffusion portion. According to the present application, the technical problems that the anti-demagnetization capability of the permanent magnet motor is weak and irreversible demagnetization is easy to occur are solved.
H02K 1/276 - Aimants encastrés dans le noyau magnétique, p.ex. aimants permanents internes [IPM]
H02K 1/2753 - Rotors internes l'axe de magnétisation des aimants étant perpendiculaire à l’axe du rotor le rotor étant formé de plusieurs aimants disposés sur la circonférence le rotor étant formé d’aimants ou de groupes d’aimants à polarité alternée
H02K 1/28 - Moyens de montage ou de fixation des parties magnétiques tournantes sur ou aux structures constituant le rotor
3.
STATOR, MOTOR, COMPRESSOR, AND ELECTRICAL EQUIPMENT
The present application provides a stator, a motor, a compressor, and electrical equipment. The stator comprises a plurality of stator sheets which are stacked, and each stator sheet comprising a plurality of block sheets which can be combined and connected. Any one of the plurality of block sheets comprises: a tooth portion, a first connecting member being provided on a first surface of the tooth portion, and a first matching member being provided on a second surface of the tooth portion; and a yoke portion connected to the tooth portion, a second connecting member being provided on a first surface of the yoke portion, and a second matching member being provided on a second surface of the yoke portion. The first connecting member and the second connecting member of one block sheet can be respectively inserted into the first matching member and the second matching member of another block sheet adjacent to said block sheet in the axial direction of the stator, so as to connect a plurality of block sheets in the axial direction. The stator sheet has an outer diameter of Φ1 and an inner diameter Φ2, the thickness of the yoke portion is L1, and the distance H1 from the center of the first connecting member to the center of the stator sheet satisfies: 0.5×(Φ1-L1)
A stator (100), a motor, a compressor (300), and an electrical device. The stator (100) comprises: multiple stator punching blocks (110), each stator punching block (110) comprising: multiple laminated sub-block punching sheets (115), the multiple sub-block punching sheets (115) being connected to form a stator punching sheet (120) along the circumferential direction of the stator (100); and welding portions (130), provided on the stator punching blocks (110), the welding portions (130) being used for connecting every two adjacent stator punching blocks (110), and each welding portion (130) comprising: at least two welding points. The stator punching blocks are connected by spot welding, the heat loss of a stator core can be reduced, a magnetic field can be prevented from weakening, and the reduction of efficiency of a motor can be avoided.
Provided are an electric motor, a compressor and an electrical device. The electric motor comprises: a stator assembly and a rotor, wherein the stator assembly comprises a stator (100) and a winding; the rotor (200) is arranged in the stator (100); the stator (100) comprises a plurality of stator laminations (210); the stator laminations (210) comprise a plurality of segmented laminations (110) which can be connected in a jointed manner; each segmented lamination (110) comprises a tooth portion (111) and a yoke portion (112); the number of pole pairs of the rotor (200) is p; the maximum rotational speed of the rotor (200) is n; and p and n satisfy: 60
Provided are a stator (100), a motor, a compressor (300), and an electrical device. The stator (100) comprises: a plurality of stator punched blocks (110), each stator punched block (110) comprising: a plurality of block laminations (115) stacked along the axial direction of the stator (100), the plurality of block laminations (115) being connected to form a stator lamination (120) along the circumferential direction of the stator (100); and at least two welding points (130), provided at the edges of the stator punched blocks (110), and configured to connect every two adjacent stator punched blocks (110). The welding points (130) comprise: first welding points provided at an edge of each of the stator punched blocks (110); and second welding points provided at the other edge of each of the stator punched blocks (110), the first welding points and the second welding points being distributed in a staggered manner along the axial direction of the stator (100). Every two adjacent stator punched blocks (110) are connected in a spot welding manner, so that the specific power loss generated by pulse spot welding is lower, the relative magnetic permeability of a motor sample is higher, magnetic leakage is reduced, a magnetic field is prevented from being weakened, and the motor efficiency is prevented from being reduced.
H02K 15/02 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques
7.
STATOR, MOTOR, COMPRESSOR AND ELECTRICAL APPARATUS
Provided are a stator, a motor, a compressor and an electrical apparatus. The stator is capable of cooperating with the rotor, and comprises: a plurality of block iron cores detachably connected to each other. Each of the plurality of block iron cores comprises: a tooth part; and a yoke part, connected to the tooth part and comprising at least two inner contour sections extending in the circumferential direction of the stator, the at least two inner contour sections comprising first contour sections and second contour sections which are connected, one end of each first contour section being connected to the tooth root of the tooth part, and the other end of each first contour section being connected to the corresponding second contour section. The first contour sections have a length of L1, the second contour sections have a length of L2, the number of rotor pole pairs is P, and the L1, L2 and P satisfy: 0.4 ≤ (L1/L2)/P ≤ 1.9. In the application, the thickness of a stator yoke is ensured, and the problem of magnetic saturation in the operation process of the motor is avoided.
Provided in the present application are a stator punching sheet, an electric motor comprising the stator punching sheet, a compressor, and a household appliance. The stator punching sheet is provided with a rotor hole and further comprises a yoke portion and multiple stator teeth, wherein the yoke portion is formed on the periphery of the stator punching sheet; the multiple stator teeth are arranged at intervals along the inner circumference of the yoke portion, and each stator tooth comprises a tooth body and a tooth boot, with one end of the tooth body being connected to the yoke portion, and the other end thereof being connected to the tooth boot; a side of the tooth boot facing the rotor hole is provided with an adjusting groove; and the center line of the tooth body divides the stator tooth into a first region and a second region, the first region being located upstream in the direction of rotation of a rotor, and the second region being located downstream in the direction of rotation of the rotor, with the area of the adjusting groove located in the first region being S1, and the area of the adjusting groove located in the second region being S2, S1 being less than S2.
A scroll plate assembly, a scroll compressor, and an air conditioner. The scroll plate assembly comprises: a fixed scroll plate (11), the fixed scroll plate (11) being provided with a gas inlet hole (113), a gas discharging hole (114), and an oil injection channel (115); and a movable scroll plate (12), engaged with the fixed scroll plate (11), and forming a working chamber (13) with the fixed scroll plate (11), the movable scroll plate (12) being provided with an oil filling groove (123) communicated with a back pressure chamber (213) of a scroll compressor, and the movable scroll plate (12) being configured to translate relative to the fixed scroll plate (11), so as to compress the gas entering the working chamber (13), wherein the oil injection channel (115) is intermittently communicated with the oil injection groove (123) and the working chamber (13), so that under the action of the pressure difference between the back pressure chamber (213) and the working chamber (13), the oil in the back pressure chamber (213) is intermittently injected into the working chamber (13). The structure can effectively prevent the gas in the working chamber from leaking to the back pressure chamber, thereby reducing the flow loss of the gas during the working process of the scroll plate assembly, thus facilitating the improvement of the energy efficiency of the scroll compressor.
F04C 18/02 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles du type à engrènement, c. à d. avec un mouvement de translation circulaire des organes coopérants, chaque organe possédant le même nombre de dents ou de parties équivalentes de prise
F04C 29/02 - Lubrification; Séparation du lubrifiant
Disclosed in the present application are a motor, a compressor, and a refrigeration apparatus. The motor comprises a stator and a rotor; the stator comprises an annular stator yoke portion and a plurality of stator teeth located on the inner side of the stator yoke portion, the plurality of stator teeth are arranged at intervals along the circumferential direction of the stator yoke portion, the tooth width of the stator teeth is T1, the width of the stator yoke portion is T2, and 4.8≤T2/T1≤5.1; the rotor is provided in the stator, the rotor comprises an annular rotor yoke portion and a plurality of rotor teeth located on the outer side of the rotor yoke portion, the plurality of rotor teeth are arranged at intervals along the circumferential direction of the rotor yoke portion, the tooth width of the rotor teeth is L1, the width of the rotor yoke portion is L2, and 6.1≤L2/L1≤6.3.
Disclosed are an electric motor, a compressor and a refrigeration apparatus. The electric motor comprises a stator and a rotor, wherein the stator comprises a central hole and a plurality of stator slots; the stator slots are arranged in an annular array with the axis of the central hole as the center; the rotor is arranged in the central hole, and is provided with a plurality of rotor slots; the rotor slots are arranged in an annular array with the axis of the central hole as the center, and are arranged close to the edge of the rotor; a plane perpendicular to the axis of the central hole is defined as a reference plane; and the sum of projected areas of the stator slots on the reference plane is S1, the sum of projected areas of the rotor slots on the reference plane is S2, the outer periphery of the stator is projected on the reference plane and a projection pattern is formed, and the area of the projection pattern is S3, wherein 0.26 ≤ S2/S1 ≤ 0.33, and 0.10 ≤ S1/S3 ≤ 0.18.
The present disclosure relates to the technical field of motors, and specifically relates to a stator, a motor, a compressor and a refrigeration device. The stator comprises a stator iron core, stator windings, a lead-out wire and a retainer; the stator iron core comprises a yoke portion and a plurality of stator teeth, a stator slot is defined between every two adjacent stator teeth and the yoke portion, and the stator iron core has a first end surface and a second end surface; the stator windings each comprise a first portion, a second portion and a third portion, the first portion and the second portion being located outside the stator slot. The retainer comprises a first retaining portion, a second retaining portion, and a third retaining portion, the first retaining portion being arranged on the first end surface, the first retaining portion covering at least part of the first portion, and the second retaining portion being arranged on the second end surface. At least part of the third retaining portion is arranged in the stator slot, the third retaining portion has a first end portion and a second end portion, and two end portions of the third retaining portion are respectively connected to the first retaining portion and the second retaining portion. A motor using the stator has advantages of low vibration noise and high efficiency.
A stator core, a stator, a permanent magnet synchronous motor (PMSM), a compressor, and a refrigeration device. The stator core comprises: a stator inner hole (120), which is for passing through a rotor; a plurality of stator punching sheets, each stator punching sheet having a thickness, the plurality of stator punching sheets being stacked along the axial direction of the stator inner hole (120), and the stator punching sheets each comprising a stator yoke and a plurality of stator teeth (110) circumferentially distributed along the stator yoke; and the stator teeth comprises: teeth roots (112) which are connected to the stator yoke, and crowns (114) which are connected to one end of the teeth roots (112) away from the stator yoke, wherein each stator punching sheet has a thickness along the axial direction of the stator inner hole, at least one crown (114) on the at least one stator punching sheet is provided with a magnetic conductive through hole (1142), and the projection of the magnetic conductive through holes (1142) along the axial direction of the teeth roots (112) on the crowns (114) divides the surface of the crowns (114) away from the teeth roots (112) into a first crown surface (1144) and a second crown surface (1146), the area of the first crown surface (1144) is smaller than the area of the second crown surface (1146). The vibration noise of the key frequency band of a motor can be significantly improved, and the listening experience of the motor and a compressor can be improved.
The present application provides a stator core, a stator, a permanent-magnet synchronous motor, a compressor, and a refrigeration device. The stator core comprises: a plurality of stator laminations stacked along an axial direction of an inner hole, each stator lamination comprising a plurality of stator teeth distributed in a circumferential direction; each stator tooth comprising a tooth and a tooth shoe connected to the tooth; the plurality of tooth shoes enclose to form the inner hole. The plurality of stator laminations comprise at least one first stator lamination. An inner peripheral wall of the at least one tooth shoe of the first stator lamination is provided with a recessed portion. The tooth shoe comprises a first tooth shoe portion, and a part of the recessed portion is located in an area of the symmetrical center line of the tooth facing the side of the first tooth shoe portion. In this way, the radial electromagnetic force wave generated by the effect of the armature magnetic field harmonic and the rotor magnetic field harmonic is reduced, the deformation of the stator core is reduced, the vibration noise of the key frequency band of the motor is significantly improved, and the listening experience of the compressor is effectively improved.
A stator sheet (100), a stator core, a motor, a compressor (300), and a refrigeration device. The stator sheet (100) comprises: a stator yoke (110), the stator yoke (110) having an annular structure; and a plurality of stator teeth (120), provided on an inner ring of the stator yoke (110). Each stator tooth (120) comprises: a tooth root (122) connected to the stator yoke (110); and a tooth crown (124) connected to the tooth root (122), in the circumferential direction of the stator yoke (110), the two ends of the tooth crown (124) being respectively a first end (130) and a second end (132). At least one tooth crown (124) is provided with a magnetic guide portion (140); in the circumferential direction of the stator yoke (110), the shortest distance between the side, of the contour of the magnetic guide portion (140) in a direction facing away from the tooth root (122), facing the first end (130) and the first end (130) is less than the shortest distance between the side, of the contour of the magnetic guide portion (140) in the direction facing away from the tooth root (122), facing the second end (132) and the second end (132). According to the stator sheet (100), the magnetic field is dispersed by means of the magnetic guide portion (140), thereby increasing the voltage drop in the magnetic circuit on the first end (130) side, reducing the local saturation effect, improving superposition of radial forces of a rotor (310) at a corresponding frequency, reducing radial vibration of the rotor (310), and reducing noise of the motor.
A rotor punching sheet (100), a rotor (210), an electric motor, a compressor (300), and a refrigeration apparatus. The rotor punching sheet (100) comprises: a body (110); and a plurality of magnet recesses (120), which are distributed at intervals around the central line of the body (110), wherein the side wall of each magnet recess (120) close to the outer edge of the body (110) is a first recess wall (121), and the side wall of each magnet recess (120) away from the outer edge of the body (110) is a second recess wall (122). The first recess wall (121) comprises a plurality of step faces (1210). The plurality of step faces (1210) comprise first step faces (1210) and second step faces (1210), wherein compared with the second step faces (1210), the first step faces (1210) are arranged closer to a magnetic pole central line (130); and the distance between each first step face (1210) and the second recess wall (122) in the direction of the magnetic pole central line (130) is smaller than the distance between each second step face (1210) and the second recess wall (122) in the direction of the magnetic pole central line (130), such that the amplitude of a fundamental wave of an air-gap magnetic field and the amplitude of each subharmonic wave thereof can be reduced, a load armature reaction on a stator side is weakened, and the amplitude of each radial subharmonic electromagnetic excitation force can be effectively reduced, thereby improving the efficiency of an electric motor provided with the rotor punching sheet (100) and reducing the electromagnetic vibration noise of the electric motor.
A stator core, a stator (310), a permanent magnet synchronous electric motor, a compressor (300), and a refrigeration apparatus. The stator core comprises: a stator inner hole (120) for allowing a rotor (320) to be arranged therein in a penetrating manner; stator punching sheets (100), each stator punching sheet (100) being provided with a plurality of stator teeth (110) distributed in a circumferential direction, wherein each stator tooth (110) comprises a tooth root (112) and a tooth crown (114) connected to the tooth root (112), and a plurality of tooth crowns (114) enclose and form the stator inner hole (120); and magnetically conductive notches (1142) provided in the tooth crowns (114), wherein the magnetically conductive notches (1142) are provided towards the stator inner hole (120), and each magnetically conductive notch (1142) divide the surface region of the tooth crown (114) towards the stator inner hole (120) into a first tooth-crown face (1144) of the tooth crown and a second tooth-crown face (1146) of the tooth crown, with the area of the region of the second tooth-crown face (1146) of the tooth crown towards the stator inner hole (120) being greater than the area of the region of the first tooth-crown face (1144) of the tooth crown towards the stator inner hole (120). By means of the solution, the suppression of even harmonic waves of an armature magnetic field is facilitated, such that the deformation quantities of the stator punching sheets (100) and the whole stator core are reduced, and therefore, the vibration noise of an electric motor at a key frequency band can be significantly improved, and the feeling of hearing the electric motor and the compressor (300) can be improved.
A compressor (100) and a refrigeration apparatus. The compressor (100) comprises a housing (110), a first air outflow port (112) and a second air outflow port (114) provided on the housing (110), a first cylinder (140) comprising a first working chamber, a second cylinder (150) comprising a second working chamber, the second working chamber being in communication with the second air outflow port (114) via a cavity of the housing (110), a first partition (160) arranged between the first bearing (120) and the first cylinder (140), and a first air vent (180) provided on the first partition (160) and in communication with the first working chamber, the first air vent (180) being in communication with the first air outflow port (112) via an air discharging channel (190), the air discharging channel (190) and the cavity of the housing (110) being not in communication with each other, and the air discharging pressure of the first working chamber being greater than the air discharging pressure of the second working chamber. With the first partition (160) additionally provided between the first bearing (120) and the first cylinder (140), and with the first air vent (180) provided in communication with the first working chamber on the first partition (160) for discharging air, the hermeticity of the first working chamber while discharging air is effectively increased, and the actual displacement of the first working chamber is brought closer to the displacement of a theoretical design, thus increasing the energy efficiency of the compressor.
F04C 18/356 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles possédant les caractéristiques couvertes par au moins deux des groupes , , , , ou par l'un de ces groupes en combinaison avec un autre type de mouvement entre les organes coopérants ayant à la fois le mouvement défini dans l'un des groupes ou et un mouvement alternatif relatif entre les organes coopérants les organes obturateurs ayant un mouvement alternatif par rapport à l'organe externe
F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p.ex. caractéristiques de structure de l'admission ou de l'échappement
F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressibles; Installations de pompage spécialement adaptées pour les fluides compressibles; Pompes multiétagées spécialement adaptées pour les fluides compressibles
An electric motor (100), a compressor and a refrigeration device. The electric motor (100) comprises: a stator core (110), wherein the stator core (110) has an inner cavity and comprises a plurality of stator slots (112), the number of stator slots (112) is Z, and the outer diameter of the stator core (110) is D1; and a rotor core (130) arranged in the inner cavity, wherein the outer diameter of the rotor core (130) is D2, the number P of poles of the electric motor (100) satisfies 6≤P≤8, the number Z of stator slots satisfies 36≤Z≤48, and the outer diameter D1 of the stator core (110) and the outer diameter D2 of the rotor core (130) satisfy (aa). Limiting the size range of the stator core (110) and the rotor core (130) of the slot-pole combination electric motor (100) can improve the output capability of the electric motor (100) and improve the energy efficiency of the electric motor while reducing noise, such that the electric motor (100) having such a structure can meet the requirement of a high-power compressor.
A stator assembly (100), a motor (200), and a compressor (300). The stator assembly (100) comprises a stator core (110) and a stopper (120). The stator core (110) has a mounting port (111) extending through axially. The mounting port (111) is used for mounting a rotor assembly (210) of a motor (200). The stopper (120) is provided at an axial end portion of the stator core (110). By providing the stopper (120) at the axial end portion of the stator core (110), the oil-air mixture thrown out can be stopped, so as to minimize the oil-air mixture thrown onto a housing (310) of the compressor (300) provided with the motor (200), and prevent the oil-air mixture from being discharged to the outside by means of an air discharge port on the housing (310), thereby greatly reducing the oil discharge amount of the compressor (300), and improving the reliability of the compressor (300) and the energy efficiency of the compressor (300).
H02K 3/34 - Enroulements caractérisés par la configuration, la forme ou la réalisation de l'isolement entre conducteurs ou entre conducteur et noyau, p.ex. isolement d'encoches
21.
ELECTRIC MOTOR, COMPRESSOR, AND REFRIGERATING APPARATUS
The present application provides an electric motor, a compressor and a refrigerating apparatus. The electric motor comprises: a stator assembly, with the stator assembly comprising a stator iron core, and the stator iron core being provided with stator slots; and a rotor assembly comprising a rotor iron core and a permanent magnet, with one of the stator iron core and the rotor iron core being arranged on the outer side of the other, and the permanent magnet being arranged on the rotor iron core. In the section perpendicular to the axis of the rotor iron core, the distance between the stator iron core and the rotor iron core is δ mm, the length of the permanent magnet in a magnetization direction of the permanent magnet is h mm, the number of stator slots is Q, the intrinsic coercive force of the permanent magnet is Hcj kA/m, where Hcj is smaller than or equal to 1800 kA/m, and the value of h satisfies 80 * (43-Q)/Hcj ≤ h ≤ 1.6 + δ. According to the electric motor provided in the present application, the use of heavy rare earth elements is reduced, the cost is reduced, and at the same time, the use requirements of the compressor can be met, and the cost performance of the electric motor is improved.
The present application provides a motor, a compressor, and a refrigeration device. The motor comprises: a stator, the stator comprising a stator core and a winding, the stator core being provided with multiple stator protruding teeth, and the winding being wound on the multiple stator protruding teeth; and a rotor, the rotor comprising a rotor core and permanent magnets, and the permanent magnets being disposed on the rotor core. A ratio of the number of the stator protruding teeth to the number of phases of the winding is configured to be suitable for adjusting the intensity of a demagnetization reverse magnetic field generated by energization of the winding. Since the ratio of the number of the stator protruding teeth to the number of phases of the winding is designed to adjust the intensity of the demagnetization reverse magnetic field generated by the energization of the winding, even if the permanent magnets lack heavy rare earth elements such as dysprosium and terbium, the demagnetization reverse magnetic field generated by the energization of the winding can still be reduced by increasing the ratio of the number of the stator protruding teeth to the number of phases of the winding, so that the demagnetization reverse magnetic field cannot demagnetize the permanent magnets, thereby improving the overall anti-demagnetization capability of the motor, and facilitating the proposal of a motor requiring fewer heavy rare earth elements and having anti-demagnetization capability.
A motor (100), a compressor (200), and a refrigeration device. The motor (100) comprises: a stator (110) having multiple stator teeth (112) arranged in a circumferential direction thereof, two adjacent stator teeth (112) defining a stator groove (113); multiple coil sets, each coil set comprising multiple coils wound around the stator teeth (112), and each coil being wound around a corresponding stator tooth (112); and a rotor (120) provided inside the stator (110), the rotor (120) comprising a rotor iron core (121) and multiple permanent magnets (122), the rotor iron core (121) being provided with multiple slots (123) arranged in a circumferential direction around a rotation centerline of the rotor iron core (121), and the multiple permanent magnets (122) being provided inside the multiple slots (123). When remanence Br of each permanent magnet (122) satisfies Br ≥ 1.2T under 20℃, and an inner diameter Φsi of the stator (110) and an outer diameter Φso of the stator (110) satisfy 0.558 ≤ Φsi/Φso ≤ 0.576, operation noise of the motor (100) can be reduced.
A compressor (100) and a refrigeration device. The compressor (100) comprises: a crankshaft (102) and a connecting structure (104) provided on the crankshaft (102); the connecting structure (104) and/or the crankshaft (102) are/is provided with an avoidance part (106), the avoidance part (106) is located at a portion at which the connecting structure (104) fits with the crankshaft (102), and the avoidance part (106) is configured to be suited to avoiding at least one among the connecting structure (104) and the crankshaft (102). The described compressor comprises the crankshaft (102) and the connecting structure (104) connected to the crankshaft (102), and the provision of the avoidance part (106) enables a gap between the crankshaft (102) and the connecting structure (104) to become larger. When the crankshaft (102) is obliquely deformed, the avoidance part (106) can avoid the oblique crankshaft (102), thus the crankshaft (102) and the connecting structure (104) remain in surface contact such that an oil film between the crankshaft (102) and the connecting structure (104) is not damaged, thereby effectively ensuring the reliability of the compressor (100). Therefore, a finer axle diameter and a shorter axle sleeve can be used, thus reducing friction loss at the portion at which the crankshaft (102) fits with the connecting structure (104), and improving the performance of the compressor.
F04C 29/00 - "MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT; POMPES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
F04C 23/02 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs d'entraînement particuliers ou leurs adaptations à cet effet
F04C 18/356 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles possédant les caractéristiques couvertes par au moins deux des groupes , , , , ou par l'un de ces groupes en combinaison avec un autre type de mouvement entre les organes coopérants ayant à la fois le mouvement défini dans l'un des groupes ou et un mouvement alternatif relatif entre les organes coopérants les organes obturateurs ayant un mouvement alternatif par rapport à l'organe externe
A compressor and a refrigeration device. The compressor comprises a housing (140). The housing (140) is provided with a first air outlet port (142) and a second air outlet port (144). A first cylinder (100) has an accommodating cavity, and a first piston (110) is eccentrically disposed in the first accommodating cavity. A second cylinder (120) has an accommodating cavity, and a second piston (130) is eccentrically disposed in the second accommodating cavity. The inner diameter of the first cylinder (100) is D1, the eccentric distance of the first piston (110) with respect to the first accommodating cavity is e1, the height of the first cylinder (100) is H1, the discharge pressure of the first cylinder (100) is P1, and the first cylinder (100) discharges air through the first air outlet port (142). The inner diameter of the second cylinder (120) is D2, the eccentric distance of the second piston (130) with respect to the second accommodating cavity is e2, the height of the second cylinder (120) is H2, the discharge pressure of the second cylinder (120) is P2, and the second cylinder (120) discharges air through the second air outlet port (144). P1
F04C 18/356 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles possédant les caractéristiques couvertes par au moins deux des groupes , , , , ou par l'un de ces groupes en combinaison avec un autre type de mouvement entre les organes coopérants ayant à la fois le mouvement défini dans l'un des groupes ou et un mouvement alternatif relatif entre les organes coopérants les organes obturateurs ayant un mouvement alternatif par rapport à l'organe externe
F04C 23/02 - Pompes caractérisées par leur combinaison avec des machines motrices ou moteurs d'entraînement particuliers ou leurs adaptations à cet effet
F04C 29/00 - "MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT; POMPES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
F04C 29/12 - Dispositions pour l'admission ou l'échappement du fluide de travail, p.ex. caractéristiques de structure de l'admission ou de l'échappement
26.
SLIDING ASSEMBLY, COMPRESSOR AND REFRIGERATION DEVICE
A sliding assembly, a compressor and a refrigeration device, the sliding assembly comprising a sliding piece (30), an elastic piece and a connecting piece (60). The connecting piece (60) is arranged between the sliding piece (30) and the elastic piece. A positioning part matched with the elastic piece is provided on the connecting piece (60); and the positioning part is used for restraining the elastic piece; and the positioning part protrudes out of the sliding piece (30) in the thickness direction of the sliding piece (30). In the sliding assembly, by means of the connecting piece (60) being provided between the sliding piece (30) and the elastic piece, and by means of the connecting piece (60) protruding out of the sliding piece (30) in the thickness direction of the sliding piece (30), the connecting piece (60) therefore has a larger restraining region for the elastic piece compared to the sliding piece (30), and thus, the restraining strength and the restraining area of the elastic piece are increased, the elastic piece is better and more strongly restrained, and the performance of the compressor is not affected. Therefore, when the compressor operates at a high rotating speed, the elastic piece does not easily experience deflection and high-frequency vibration, the reliability of the elastic piece is high, and thus, the reliability of the compressor operation is improved.
F04C 18/356 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles possédant les caractéristiques couvertes par au moins deux des groupes , , , , ou par l'un de ces groupes en combinaison avec un autre type de mouvement entre les organes coopérants ayant à la fois le mouvement défini dans l'un des groupes ou et un mouvement alternatif relatif entre les organes coopérants les organes obturateurs ayant un mouvement alternatif par rapport à l'organe externe
F04C 29/00 - "MACHINES" À LIQUIDES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT; POMPES À DÉPLACEMENT POSITIF, À PISTON ROTATIF OU OSCILLANT - Parties constitutives, détails ou accessoires de pompes ou d'installations de pompage spécialement adaptées pour les fluides compressibles non couverts dans les groupes
A compressor and a cooling device. The compressor comprises: a housing (160), a stator (111) and a rotor (112), a first cylinder (121), a first piston (122) provided in the first cylinder (121), a second cylinder (124), and a second piston (125) provided in the second cylinder (124). A crankshaft (130) has a first eccentric portion (131) and a second eccentric portion (132). The first piston (122) is sleeved on the first eccentric portion (131). The second piston (125) is sleeved on the second eccentric portion (132). The crankshaft (130) passes through the rotor (112) and a compression assembly (120). A bearing system comprises a first bearing (141), a second bearing (142), and an auxiliary bearing (143). The first bearing (141) is provided on one side of the first cylinder (121) close to a driving motor (110). The second bearing (142) is provided on one side of the second cylinder (124) located away from the driving motor (110). The auxiliary bearing (143) is provided on the crankshaft (130) and is located on one side of the driving motor (110) located away from the compression assembly (120). A balance system comprises a rotor counter weight (151) and a crankshaft counter weight (154). The rotor counter weight (151) is provided on the rotor (112). The crankshaft counter weight (154) is provided on the crankshaft (130) and is located on one side of the second bearing (142) located away from the first bearing (141). An isolation cover (170) partially surrounds the crankshaft counter weight (154). The bearing system and the balance system improve the reliability of high-speed operation of the compressor.
F04C 18/356 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles possédant les caractéristiques couvertes par au moins deux des groupes , , , , ou par l'un de ces groupes en combinaison avec un autre type de mouvement entre les organes coopérants ayant à la fois le mouvement défini dans l'un des groupes ou et un mouvement alternatif relatif entre les organes coopérants les organes obturateurs ayant un mouvement alternatif par rapport à l'organe externe
F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressibles; Installations de pompage spécialement adaptées pour les fluides compressibles; Pompes multiétagées spécialement adaptées pour les fluides compressibles
28.
STATOR ASSEMBLY, ELECTRIC MOTOR, COMPRESSOR, AND REFRIGERATION DEVICE
Provided is a stator assembly, comprising: a stator core (1); a plurality of tooth parts (2) arranged on an inner side wall of the stator core (1), wherein the plurality of tooth parts (2) are distributed in a circumferential direction of the stator core (1), a groove part (20) is defined between adjacent tooth parts (2), and the tooth parts (2) comprise a first tooth; and a winding (3), wherein the winding (3) is arranged on the tooth parts (2) in a winding manner, the winding (3) is wound from the first tooth, and when wound on other tooth parts (2), the winding (3) passes through the groove parts (20) on two sides of the first tooth for wire spanning. The winding (3) starts to be wound from the first tooth, and after the winding of the first tooth is completed and when the winding of other tooth parts (2) starts, the winding needs to pass through the groove parts (20) on the two sides of the first tooth for wire spanning, such that a spanning wire of the same winding (3) is concentrated in one area, that is, collecting inside the groove parts (20) on the two sides of the first tooth, and taps may be led out from the groove parts (20) on the two sides of the first tooth, and the taps are concentrated in one area to make wiring easy.
A rotor, a motor, a compressor, and a refrigeration apparatus. The rotor (1) comprises: a rotor iron core (10) having multiple installation recesses (12) arranged in a circumferential direction of the rotor iron core (10); permanent magnets provided in the installation recesses (12) to form magnetic poles; multiple slits arranged at the rotor iron core (10) and positioned at respective sides of the installation recesses (12) away from a rotation axis of the rotor (1), a connection line between central points of two end portions of the slit close to and away from the installation recess (12) forming a direction line of the slit within a cross-section perpendicular to the rotation axis of the rotor (1), wherein the slits include a first slit (14) and a second slit (16) positioned at the same side of d axis, extension lines of the direction lines of the first slit (14) and the second slit (16) intersect at an intersection point not on d axis, and a central line of any magnetic pole passing through a central axis of the rotor iron core (10) is set as d axis. The above arrangement can reduce air gap flux density harmonics of the rotor (1), reduce fluctuation of torque of a motor, and increase a counter-electromotive force of the rotor (1), thereby enhancing energy efficiency of a compressor.
A pump body assembly (1), a compressor, and an air conditioner. The pump body assembly (1) comprises: a crankshaft (10), wherein the crankshaft (10) comprises a main shaft portion (102) and an eccentric portion (104) connected with the main shaft portion, and a distance between the center line of the main shaft portion (102) and that of the eccentric portion (104) is e; a main bearing (12), comprising a hub portion (122), wherein the main shaft portion (102) penetrates through a though hole (130) of the hub portion (122), and the hole wall of the through hole is provided with a first oil guide groove (120); and a cylinder body (142), wherein a sliding blade groove (144) and a center hole (146) are provided on the cylinder body, the crankshaft (10) penetrates though the center hole (146), the main bearing (12) is located at the two sides of the cylinder body (142), the radius of the center hole (146) is R, and a difference value between R and e is r. The value range of an included angle formed of a first connection line (126) between the center of the center hole (146) and that of the sliding blade groove (144) that is provided on the same projection surface as the center hole and a second connection line (128) between the termination point of the first oil guide groove (120) at one end of the hub portion (122) distant from the eccentric portion (104) and the center of the through hole (130) is formula (I). The crankshaft (10) and the main bearing (12) are in more uniform contact with oil films at all positions, thereby effectively solving the problem of the abnormal abrasion of the main shaft portion (102) of the crankshaft (10), and prolonging the service life of the compressor.
Provided are a stator iron core, an electric motor and a compressor. The stator iron core comprises: a stator body which is rod-shaped; stator convex teeth distributed at intervals along the periphery of the stator body, in which any two adjacent convex teeth in the multiple stator convex teeth define a stator slot; and first pole shoes and second pole shoes all located at one end, away from the stator body, of the multiple stator convex teeth, the first pole shoe and the second pole shoe being respectively provided at two sides of the stator convex tooth, the first pole shoe and the second pole shoe located at two sides of the stator slot forming a notch, and the center line of the stator slot being parallel to and having a preset distance from the center line of the adjacent notch. Since a preset distance exists between the center line of the notch and the center line of the stator slot, magneto-resistance torque created by the asymmetry of a rotor magnetic circuit structure is fully used, and thus, without changing the back EMF constant, electric motor torque and the torque constant can be increased by adding magnetoresistance torque, thereby ensuring a relatively high torque output capability when the electric motor is revolving.
A permanent magnet motor and a compressor applying same. The permanent magnet motor (41) comprises: a rotor (411), a stator iron core (412), and a stator winding (414). The stator winding (414) comprises multiple coils (415) connected with each other. The coils are provided on the stator iron core (412). The coils (415) comprise a first type of coil and a second type of coil. The stator winding (414) is a three-phase stator winding. Each phase of the stator winding is provided with at least three connectors, comprising a first connector, a second connector, and a third connector. The first connector and the second connector in each phase of stator winding are provided on the first type of coil. The third connector in each phase of stator winding is provided on the second type of coil. The first connector in each phase of stator winding is connected to the second connector in the adjacent phase of stator winding; the second type of coil is connected to the first type of coil in each phase of stator winding; and the third connector in each phase of winding is connected to a corresponding three-phase power supply lead or to the third connector in another phase of stator winding. The permanent magnet motor increases motor efficiency and reduces noise.
A permanent magnet (10) for a motor (110), a rotor assembly (111) having the same, a motor (110), and a compressor. The permanent magnet (10) comprises a Nd-Fe-B-based main phase. A crystalline grain size of the main phase is less than 4 micrometers. A mass percentage of dysprosium and/or terbium in the permanent magnet (10) is less than or equal to 0.5%. An intrinsic coercivity Hcj of the permanent magnet (10) at 25°C satisfies Hcj ≥ 1500 kA/m. The permanent magnet (10) provided in an embodiment of the present invention can have less or no heavy rare-earth elements, and has excellent performance and a high price/performance ratio.
A compressor (1), and an air conditioning system having the same. The compressor (1) has a first pneumatic cylinder (3) and a second pneumatic cylinder (4). The first pneumatic cylinder (3) is constructed such that compression involves the entire volume of the pneumatic cylinder when a sliding vane cavity (3c) is in communication with a high-pressure refrigerant, and compression does not involve the entire volume of the pneumatic cylinder when the sliding vane cavity (3c) is in communication with a low-pressure refrigerant. The second pneumatic cylinder (4) is constructed such that compression involves the entire volume when a piston cavity (4c) is in communication with the high-pressure refrigerant, and compression involves only a portion of the volume when the piston cavity (4c) is in communication with the low-pressure refrigerant. The air conditioning system comprises the compressor (1), an outdoor heat exchanger (9), an indoor heat exchanger (14), a flash evaporator (12), a reversing valve assembly, etc. The reversing valve assembly comprises a first four-way valve (5), a second four-way valve (6), and a third four-way valve (8).
F04C 23/00 - Combinaisons de plusieurs pompes, chacune étant du type à piston rotatif ou oscillant spécialement adaptées pour les fluides compressibles; Installations de pompage spécialement adaptées pour les fluides compressibles; Pompes multiétagées spécialement adaptées pour les fluides compressibles
F04C 18/356 - Pompes à piston rotatif spécialement adaptées pour les fluides compressibles possédant les caractéristiques couvertes par au moins deux des groupes , , , , ou par l'un de ces groupes en combinaison avec un autre type de mouvement entre les organes coopérants ayant à la fois le mouvement défini dans l'un des groupes ou et un mouvement alternatif relatif entre les organes coopérants les organes obturateurs ayant un mouvement alternatif par rapport à l'organe externe
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