A compound dispersant which is composed of distilled water, a nonionic surfactant, an anionic surfactant and a wetting agent. The nonionic surfactant is a Tween compound, and the anionic surfactant is hydrocarbyl sulfate salts. The compound dispersant can block or slow down agglomeration of graphene in a dispersion solution. Also disclosed are a preparation method of the compound dispersant, which is simple to operate, a mixed electroplating solution containing the compound dispersant, in which the graphene is dispersed uniformly and stably, and a preparation method of the mixed electroplating solution, in which graphene is distributed uniformly and stably.
A compound dispersant which is composed of distilled water, a nonionic surfactant, an anionic surfactant and a wetting agent. The nonionic surfactant is a Tween compound, the anionic surfactant is a hydrocarbyl sulfonate salt compound, and the wetting agent is an amide compound. The compound dispersant can block or slow down agglomeration of graphene in a dispersion solution. In addition, disclosed are a preparation method of the compound dispersant, which is used for preparing the compound dispersant and is simple to operate, a mixed electroplating solution containing the compound dispersant, in which the graphene is dispersed uniformly and stably, and a preparation method of the mixed electroplating solution, in which graphene is distributed uniformly and stably.
A compound dispersant which is composed of distilled water, a nonionic surfactant, an anionic surfactant and a wetting agent, wherein the nonionic surfactant is a Tween compound, and the wetting agent includes a hydrocarbyl sulfate salt compound and a hydrocarbyl sulfonate salt compound. The compound dispersant can block or slow down agglomeration of graphene in a dispersion solution. Also disclosed are preparation method of the compound dispersant, which is simple to operate and produces a compound dispersant that can effectively block or slow down the agglomeration of graphene in the dispersion solution, a mixed electroplating solution including the compound dispersant, in which the graphene is dispersed uniformly and stably, and a preparation method of the mixed electroplating solution, which is simple to operate, wherein graphene is distributed uniformly and stably.
A plug-in circuit breaker that includes a circuit breaker housing, and a locking mechanism, an unlocking mechanism, and a button mechanism all arranged inside the circuit breaker housing, and an operating mechanism connected to the button mechanism, to drive the circuit breaker to switch on/switch off; the locking mechanism includes a first locking member with one end protruding outside the circuit breaker housing, and the circuit breaker housing comprises a locking member opening co-operated with the first locking member; the unlocking mechanism includes an independent pulling member drivingly co-operated with the first locking member, when the circuit breaker is in the switch-off state, one end of the first locking member protrudes outside the circuit breaker housing from the locking member opening, and pulling the pulling member enables the first locking member to retract into the inside of the circuit breaker housing.
A circuit breaker that includes a circuit breaker housing, a button mechanism arranged inside the circuit breaker housing, an operating mechanism connected with the button mechanism, a movable contact connected with the operating mechanism, a static contact co-operated with the movable contact, the button mechanism being operable to enable the circuit breaker to switch on/switch off by means of the operating mechanism; the circuit breaker also includes an electric mechanism arranged inside the circuit breaker housing, the electric mechanism is drivingly co-operated with the button mechanism or the operating mechanism, the electric mechanism can actuate the circuit breaker to switch on/switch off by means of the operating mechanism, or the electric mechanism can actuate the circuit breaker to switch on/switch off by means of the cooperation of the button mechanism.
A circuit breaker with a circuit breaker housing that includes a switch-on button hole and a switch-off button hole, a button mechanism that includes a switch-on button and a switch-off button, the switch-on button including a switch-on button operating end slidably arranged in the said switch-on button hole, the switch-off button including a switch-off button operating end slidably arranged in the switch-off button hole. While the switch-on button operating end is being pressed toward the inside of the circuit breaker housing to enable the circuit breaker to switch on, the switch-off button operating end moves toward the outside of the circuit breaker housing, and while the switch-off button operating end is being pressed toward the inside of the circuit breaker housing to enable the circuit breaker to switch off, the switch-on button operating end moves toward the outside of the circuit breaker housing.
An electric operating device for a circuit breaker that includes a housing, a transmission mechanism is installed in the housing, and a side wall of the housing serves as an operation surface and is provided with a first sliding groove communicated with the interior of the housing; a sliding rod is installed in the housing; a driving member controlled by the transmission mechanism is installed on the sliding rod; the driving member is provided with a closing operation portion and an opening operation portion; the driving member passes through the first sliding groove and extends out of the housing; the driving member moves along the sliding rod under the control of the transmission mechanism; and the closing operation portion and the opening operation portion operate a handle of the circuit breaker to be closed and opened respectively.
H01H 3/40 - Mécanismes-moteurs, c. à d. pour transmettre la force motrice aux contacts utilisant la friction ou des appareillages dentés ou à vis écrou
H01H 3/26 - Dispositions comportant une énergie à l'intérieur de l'interrupteur pour actionner le mécanisme d'entraînement utilisant un moteur dynamo-électrique
A plug-in circuit breaker that includes a housing, an operating mechanism and a button mechanism which has a closing position and an opening position. The circuit breaker further includes a locking member and a linkage member arranged inside the housing. The linkage member is provided with an abutting protruding stand. The locking member is provided with a locking protruding stand. When the button mechanism is in the closing position, the abutting protruding stand of the linkage member extends out of the housing and is limited by the button mechanism at an extension position, so that it cannot retract into the housing. When the button mechanism is in the opening position, the linkage member retracts into the housing, the locking protruding stand of the locking member extends out of the housing, and the locking protruding stand of the locking member can be pushed back into the housing.
A plug-in circuit breaker that includes a circuit breaker housing with a limiting hole and a opening and closing button. The circuit breaker further includes a locking member rotatably arranged inside the circuit breaker housing with an upper portion close to the limiting hole provided with a locking protrusion fitting. A lower portion of the circuit breaker housing is provided with a locking driving surface fitting with the opening and closing button. When the limiting hole is not shielded, the opening and closing button jacks up the locking driving surface to enable the locking protrusion to extend out of the limiting hole. The plug-in circuit breaker is closed when the limiting hole is shielded, so that the locking protrusion cannot extend out of the limiting hole. The locking driving surface limits the opening and closing button, so that the opening and closing button cannot press to the destined position.
A plug-in circuit breaker that includes a housing with a limiting hole, a button mechanism having a closing position and an opening position, and an operating mechanism actuated by the button mechanism. The plug-in circuit breaker includes a locking member arranged inside the housing. The locking member has a locking protruding stand opposite the limiting hole. When the button mechanism is in the closing position, the locking protruding stand of the locking member extends out of the limiting hole and limited by the button mechanism. When the button mechanism is in the opening position, the locking protruding stand of the locking member extends out of the limiting hole to apply an external force on the locking member for retraction. The locking protruding stand of the locking member can retract into the housing, and the locking member limits the button mechanism to perform the closing operation.
A plug-in circuit breaker with an operating button that includes a button inner end inserted inside the circuit breaker and a button outer end. An indicator slot is arranged inside the operating button, an indicating hole is arranged on the button outer end. The plug-in circuit breaker further includes an indicating member slidably inserted inside the indicator slot and one end of which is provided with a make-contact indicating surface and a break-contact indicating surface. When the plug-in circuit breaker is in a break-contact state, the break-contact indicating surface is arranged opposite to the indicating hole, thus during pressing the operating button, the indicating member moves inside the indicator slot. After the make-contact state, the make-contact indicating surface is arranged opposite to the indicating hole. The indicating member is arranged inside the operating button to save space and to indicate the break-contact and make-contact state through the indicating hole.
A miniature circuit breaker, which includes a circuit breaker housing, a button mechanism, an operating mechanism, a moving contact, and a static contact, wherein the operating mechanism includes a supporting member, a buckle member, a catch member, and a switching-off rod, the switching-off rod includes a switching-off rod connecting end and a switching-off rod driving end.
A miniature circuit breaker, which includes a circuit breaker housing, a button mechanism, and an indicating apparatus. The circuit breaker housing includes an indicating hole arranged in one side thereof, the button mechanism is in sliding fit with the circuit breaker housing, the indicating apparatus is in driving fit with the button mechanism, and when the button mechanism is pressed to switch on the miniature circuit breaker, the button mechanism drives the indicating apparatus to shield the indicating hole. The indicating apparatus thereof may indicate a switching-on state of the circuit breaker when the circuit breaker is switched on, thus improving a safety of electricity consumption.
A miniature circuit breaker, which includes a button mechanism, a circuit breaker housing, and a locking mechanism, wherein the button mechanism is arranged at one end of the circuit breaker housing and is in sliding fit with the circuit breaker housing, the locking mechanism includes a second locking member, the second locking member is pivotally arranged on the circuit breaker housing, the circuit breaker housing includes a second opening hole arranged on one side thereof, one end of the second locking member is in driving fit with the button mechanism, and the other end of the second locking member passes through the second opening hole and is in limit fit with a housing at an assembly position of the circuit breaker.
A handle of a manual operation mechanism of a circuit breaker, which includes an operating handle, a padlock device, and a locking shaft, wherein a middle of the padlock device is pivotally arranged on the operating handle, a front end of the padlock device is connected with the locking shaft, the padlock device is connected with the operating handle through a first driving member, a rear end of the padlock device is in limit fit with a locking mechanism, a padlock hole is arranged in the rear end of the padlock device, and the padlock hole is shielded by the operating handle.
A miniature circuit breaker, which includes a button mechanism, a circuit breaker housing, and an anti-switching-on mechanism, wherein the button mechanism is arrange at one end of the circuit breaker housing and is in sliding fit with the circuit breaker housing, the anti-switching-on mechanism includes a first locking member, the first locking member is pivotally arranged on the circuit breaker housing, one end of the first locking member is in locking fit with the button mechanism to prevent the button mechanism from moving towards a switching-on direction, and after the miniature circuit breaker is installed to an installed position for the circuit breaker, an external housing of the installed position for the circuit breaker acts on the first locking member, so that after the first locking member is unlocked from the button mechanism, the button mechanism is capable of moving towards the switching-on direction for a switching-on operation.
A drawer type circuit breaker comprises a drawer base and a circuit breaker body, wherein the circuit breaker body is rocked into and out of the drawer base, so that a main circuit of the circuit breaker body and the drawer base is switched on and switched off; a safety baffle is provided between the drawer base and the circuit breaker body to block a drawer base busbar or a bridge type contact of the drawer base; and a front-rear displacement device for the safety baffle to move toward a movement direction of the drawer base is provided on the safety baffle and the drawer base. According to the drawer type circuit breaker of the present invention, the front-rear displacement device is provided on the safety baffle and the drawer base, the safety baffle is displaceable front and back, and the drawer base busbar may penetrate out of the safety baffle. The bridge contact can be mounted either on the drawer base or on the body, such that the mounting position of the bridge type contact is more flexible, and the connection of the main circuit is more stable and reliable.
The present invention discloses a data transmission apparatus of a circuit breaker controller. The data transmission apparatus comprises: a first component having a first power supply and a second component having a second power supply. The first component and the second component share a storage device. The second component is connected to a main circuit of the circuit breaker controller. The second component collects parameters of the main circuit and stores the parameters in the storage device. The second power supply powers the second component and is powered by the main circuit. The first component is connected to a communication device. The first component establishes data transmission between the communication device and the storage device. The first power supply powers the first component and is powered by an external power supply. The second power supply is connected to the first power supply and transmits a control signal to the first power supply.
G05B 19/042 - Commande à programme autre que la commande numérique, c.à d. dans des automatismes à séquence ou dans des automates à logique utilisant des processeurs numériques
H02H 1/00 - CIRCUITS DE PROTECTION DE SÉCURITÉ - Détails de circuits de protection de sécurité
H02H 3/00 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion
H01H 71/00 - INTERRUPTEURS ÉLECTRIQUES; RELAIS; SÉLECTEURS; DISPOSITIFS DE PROTECTION - Détails des interrupteurs ou relais de protection compris dans les groupes
A contactor including a pedestal. The pedestal is of a step structure having notches in two ends. The step structure includes a first step and a second step from bottom to top and is covered with a cover body having a matched shape. A part, which protrudes out of the second step, at each of two ends of the first step, is provided with a first mounting groove in which a control terminal and a power terminal that are spaced apart from each other are mounted, and the cover body is provided with a first wiring port corresponding to the control terminal and a second wiring port corresponding to the power terminal. Each of two ends of the second step is provided with a second mounting groove in which an auxiliary terminal is mounted, and the cover body is provided with a third wiring port which corresponds to the auxiliary terminal mounted in the second mounting groove. The contactor has a simple structure, and wiring areas can be distinguished.
A direct-acting electromagnetic trip device including a housing, and a regulation mechanism, a linkage mechanism, an electromagnetic system and a trip mechanism which are arranged in the housing. The regulation mechanism is connected with the linkage mechanism, the linkage mechanism is connected with one end of an iron core of the electromagnetic system, and the linkage mechanism is connected with the trip mechanism at the same time. The regulation mechanism includes a rotary knob and a regulation rod, wherein the rotary knob is abutted against and engaged with the regulation rod, and the regulation rod is abutted against and engaged with the linkage mechanism. The electromagnetic system further includes an elastic element that pushes the iron core to allow the linkage mechanism to be abutted against the regulation rod and allow the rotary knob to be abutted against the regulation rod.
H01H 75/00 - Disjoncteurs de protection à maximum de courant dans lesquels un courant excessif ouvre les contacts en libérant automatiquement une énergie mécanique emmagasinée par l'actionnement précédent d'un mécanisme réarmé par un moteur
H01H 71/74 - Moyens pour régler les conditions dans lesquelles le dispositif doit fonctionner pour assurer la protection
An alternating current contactor comprises a base and a magnetic yoke. The magnetic yoke is mounted on a bottom plate of the base. A magnetic yoke support for supporting and buffering the magnetic yoke is respectively provided at two sides of the magnetic yoke, wherein sidewalls at two sides of each magnetic yoke support, which are connected with the magnetic yoke are different in thickness. The magnetic yoke support of the alternating current contactor of the utility model has a simple structure due to the arrangement of an asymmetric eccentric structure. The up-down position of the magnetic yoke relative to the bottom plate of the base can be adjusted by changing an assembly direction of the magnetic yoke supports, thereby achieving the purpose of adjusting the total stroke of the product with high flexibility. When a dimension of a housing of a plastic part is abnormal, the magnetic yoke has a certain adjustment amount to ensure that the integral assembly of the product can be completed and the efficiency and reliability can be improved.
A fusion welding isolation mechanism for an operating mechanism of a circuit breaker is provided. The operating mechanism of circuit breaker includes: a tripping component, a left side, a right side plate, a latch, a half shaft, a lever, and a main shaft. The tripping component, the latch, and the lever are mounted between the left side plate and the right side plate. The half shaft and the main shaft penetrate through the left side plate and the right side plate, and extend out of the left side plate and the right side plate. The tripping component, the latch, the half shaft, the lever, and the main shaft move in linkage. The lever and the main shaft are provided with isolation devices for preventing an operation handle from an opening operation when a moving contact is subject to fusion welding.
H01H 71/64 - Mécanismes à réarmement manuel avec des moyens pour empêcher le réarmement pendant l'existence de conditions anormales, p.ex. dispositions à poignée libre comprenant un accouplement par genouillère
H01H 71/62 - Mécanismes à réarmement manuel avec des moyens pour empêcher le réarmement pendant l'existence de conditions anormales, p.ex. dispositions à poignée libre
H01H 71/10 - Mécanismes d'actionnement ou de déclenchement
A tripping mechanism for a circuit breaker comprises a connecting rod assembly and a control assembly, wherein one end of the connecting rod assembly is connected with a rotating shaft assembly for driving the circuit breaker to be switched off in a driving manner, and the other end of the connecting rod assembly is provided with a jump pin which can be connected with the control assembly in a latching manner, and the jump pin is also provided with a U-shaped groove. The control assembly comprises a switching-off latch which is rotatably mounted. The end part of the switching-off latch can be connected with the U-shaped groove in a latching and limiting manner, and the circuit breaker triggers the end part of the switching-off latch to be tripped from the U-shaped groove when being switched off, and therefore the rotating shaft assembly connected with the connecting rod assembly drives the circuit breaker to be switched off. The tripping mechanism for the circuit breaker, which is provided by the present invention, is stable in latching, simple in structure and accurate in action.
A mounting structure for an energy storage assembly of a circuit breaker comprises an energy storage lever and an energy storage spring, wherein one end of the energy storage lever is an energy storage end which is connected with the energy storage spring, and the other end of the energy storage lever is a driving end. An external force can be applied to the driving end, such that the energy storage lever rotates around a lever fulcrum in the middle of the energy storage lever, thereby extruding the energy storage spring at the energy storage end to finish energy storage. One end of the energy storage spring is connected and mounted with the energy storage lever, and the other end of the energy storage spring is mounted in a base support. An energy storage mounting shaft which can be considered as a rotating fulcrum is also arranged in the middle of the energy storage lever. The driving end is stressed, such that the energy storage lever rotates around the energy storage mounting shaft. The mounting structure for the energy storage assembly of the circuit breaker, which is provided by the present invention, is simple in mounting process, stable in connection structure and high in assembly accuracy.
H01H 3/30 - Dispositions comportant une énergie à l'intérieur de l'interrupteur pour actionner le mécanisme d'entraînement utilisant un moteur à ressort
A fault state indication device for a circuit breaker includes: a contact group; and a transmission assembly and an indication assembly that are mounted inside a housing. The contact group implements a normally open contact group and a normally closed contact group. The transmission assembly acts on a contact support, different open and closed states of the contact group are realized via the contact support. The indication assembly indicates a fault state, the indication assembly is linked with the circuit breaker, and carries out a corresponding state indication in response to a fault.
An interlocking device for a circuit breaker comprises a control assembly and an interlocking assembly which are connected with each other in a driving manner. The control assembly can be connected with a connecting rod assembly and a cam assembly of an energy storage operation mechanism of the circuit breaker in a latching manner, thereby controlling the energy storage operation mechanism to finish a switching-on/switching-off operation. A switching-off latch of the control assembly is connected with the connecting rod assembly, and a switching-on latch of the control assembly is connected with the cam assembly. A switching-on guide rod of the interlocking assembly is connected with the control assembly in a driving manner, such that the switching-on latch actuates, and a switching-off guide rod of the interlocking assembly is connected with the control assembly in a driving manner, such that the switching-off latch actuates. One end of a switching-on half-shaft is connected with the switching-on latch in a driving manner, and the other end of the switching-on half-shaft and the driving guide rod face each other. The interlocking device for the circuit breaker, which is provided by the present invention, is compact in structure, accurate in control and stable in action.
H01H 9/24 - Mécanismes d'interverrouillage, verrouillage ou accrochage pour interverrouillage de plusieurs pièces du mécanisme actionnant les contacts
H01H 71/04 - Moyens pour indiquer l'état du dispositif de commutation
H01H 71/10 - Mécanismes d'actionnement ou de déclenchement
H01H 3/30 - Dispositions comportant une énergie à l'intérieur de l'interrupteur pour actionner le mécanisme d'entraînement utilisant un moteur à ressort
An energy storage operation mechanism for a circuit breaker comprises a side plate assembly, a connecting rod assembly, a cam assembly, an energy storage assembly, a rotating shaft assembly and a control assembly. A rotatable driving shaft is mounted in the side plate assembly. The connecting rod assembly and the cam assembly are mounted on the driving shaft. The energy storage assembly and the rotating shaft assembly are mounted at one side of the driving shaft, and the control assembly is mounted at the other side of the driving shaft. The connecting rod assembly is connected with the rotating shaft assembly. The cam assembly can be in contact and connection with the energy storage assembly to push the energy storage assembly to store energy. The control assembly can be connected with the connecting rod assembly and the cam assembly in a latching manner. The energy storage operation mechanism for the circuit breaker, which is provided by the present invention, is compact in structure and high in reliability.
H01H 3/30 - Dispositions comportant une énergie à l'intérieur de l'interrupteur pour actionner le mécanisme d'entraînement utilisant un moteur à ressort
H01H 71/52 - Mécanismes à réarmement manuel actionnés par un levier
H01H 3/46 - Mécanismes-moteurs, c. à d. pour transmettre la force motrice aux contacts utilisant une liaison par tige ou levier, p.ex. une genouillère
An indication device of an electric switch comprises an indication component (101), a driving component (103) and a positioning component (102). The indication component (101) has at least three indication positions. Each indication position corresponds to one state of the electric switch, and the indication component (101) shows one indication mark at each indication position. The indication device of electric switch uses a single indication component (101) having at least three indication positions, and the third position is provided via deformation of the indication component (101) itself, thus realizing a simple structure and low manufacturing cost.
A two-level latch mechanism for an operation mechanism of a circuit breaker is provided. The operation mechanism includes: a tripping component, a left side plate, a right side plate, a latch, a half shaft, a lever, and a main shaft. The tripping component, the latch and the lever are mounted between the left side plate and the right side plate. The half shaft and the main shaft penetrate through the left side plate and the right side plate, and extend out of the left side plate and the right side plate. The tripping component, the latch, the half shaft, the lever, and the main shaft move in linkage. The tripping component includes a tripping buckle and a latch surface is disposed on a second end of the tripping buckle. The tripping component, the latch component and the half shaft component form a two-level latch.
An operation mechanism of a circuit breaker includes: a tripping component; a left side plate; a right side plate; a latch; a half shaft; a lever; and a main shaft. The tripping component, the latch, the half shaft and the lever are mounted between the left side plate and the right side plate. The half shaft and the main shaft penetrate through the left side plate and the right side plate, and extend out of the left side plate and the right side plate. The lever includes a sheet metal bending piece. The sheet metal bending piece is bent to form a top wall and two side walls. The tripping component, the latch, the half shaft, the lever and the main shaft move in linkage. The tripping and the latch form a two-level latch. The operation mechanism of the circuit breaker is manual operation.
An operating mechanism of a circuit breaker comprising a static contact, a movable contact provided on a contact support and an operating handle that is in linkage with the contact support; a rotation shaft of the movable contact is concentric with a rotation shaft of the contact support, and the movable contact and the contact support are fixedly connected via an elastic component; the movable contact is capable of rotating relative to the contact support. The operating mechanism improves the response velocity of the movable contact.
A current transformer includes a closed magnetic circuit and a secondary winding. A first part of the closed magnetic circuit completely surrounds a primary conductor, and a second part of the closed magnetic circuit forms the secondary winding. The second part of the closed magnetic circuit serves as a magnetic core of the secondary winding. The closed magnetic circuit forms a plurality of branch magnetic circuits at the second part, and a secondary winding is formed on each branch magnetic circuit. Each branch magnetic circuit serves as a magnetic core of a corresponding secondary winding. Each secondary winding is staggered with each other in at least one of the length, the height and the thickness.
H01F 30/04 - Transformateurs fixes non couverts par le groupe avec plusieurs enroulements secondaires alimentant chacun une charge séparée, p.ex. pour alimentations de postes radio-électriques
33.
Controller and control method for alternating current contactor
A controller for an alternating current contactor includes: a filtering and rectification circuit that filters and rectifies external alternating current; an electromagnet component driven by an output of the filtering and rectification circuit that performs actions of attraction, holding or releasing; a power transistor circuit connected to the electromagnet component; and a microcontroller that controls the power transistor circuit to control the actions performed by the electromagnet component. The controller further includes a voltage control loop that provides a voltage feedback signal and a current control loop that provides a current feedback signal to the microcontroller. The microcontroller generates a control signal according to the voltage feedback signal. The control signal is a PWM control signal having different duty cycles during the attraction and holding of the electromagnet component so that the current does not exceed a predetermined current threshold during the attraction and bolding of the electromagnet component.
H01H 47/32 - Courant d'excitation fourni par un dispositif semi-conducteur
H01H 47/02 - Circuits autres que ceux appropriés à une application particulière du relais et prévue pour obtenir une caractéristique de fonctionnement donnée ou pour assurer un courant d'excitation donné en vue de modifier le fonctionnement du relais
H01H 47/22 - Circuits autres que ceux appropriés à une application particulière du relais et prévue pour obtenir une caractéristique de fonctionnement donnée ou pour assurer un courant d'excitation donné pour l'alimentation de la bobine du relais en courant d'excitation
H02M 1/12 - Dispositions de réduction des harmoniques d'une entrée ou d'une sortie en courant alternatif
H02M 7/04 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques
H02H 3/08 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à une surcharge
34.
Manual operation device for low voltage switching apparatus
The present invention discloses a manual operation device for low voltage switching apparatus. An operating handle is provided with a fixing groove. The fixing groove is matched with a second fixing plate, the second fixing plate is placed in the fixing groove. A reset torsion spring is arranged between the second fixing plate and the fixing groove. A pawl is rotatably mounted on the second fixing plate through a fixing pin, the pawl rotates about the fixing pin. One end of a first reset spring is connected to the top end of the pawl, the other end of the first reset spring is connected to the operating handle. The operating handle i mounted on a mounting shaft of an operating mechanism of the low voltage switching apparatus. A mounting plate is provided with a rotation shaft, the rotation shaft is the rotation shaft of an energy storage mechanism of the low voltage switching apparatus. The mounting shaft and the rotation shaft are not concentric. A ratchet wheel is rotatably mounted on the rotation shaft, the bottom end of the pawl is engaged with an intertooth position of the ratchet wheel. A stop detent is provided on the bottom of the mounting plate, the stop detent is rotatably mounted on the mounting plate. The top end of the stop detent is engaged with an intertooth position of the ratchet wheel. One end of a second reset spring is connected to the bottom end of the stop detent, the other end of the second reset spring is fixed on the mounting plate.
H01H 3/40 - Mécanismes-moteurs, c. à d. pour transmettre la force motrice aux contacts utilisant la friction ou des appareillages dentés ou à vis écrou
H01H 21/24 - Organes moteurs, p.ex. manette agencés pour retourner à la position normale après suppression de la force motrice
H01H 71/52 - Mécanismes à réarmement manuel actionnés par un levier
H01H 3/30 - Dispositions comportant une énergie à l'intérieur de l'interrupteur pour actionner le mécanisme d'entraînement utilisant un moteur à ressort
H01H 3/34 - Mécanismes-moteurs, c. à d. pour transmettre la force motrice aux contacts utilisant un encliquetage
A clapping type electromagnetic tripping system comprises an iron core with a U-shaped structure, an armature, a heating element, a bimetallic element and a connecting plate; a bracket extends into a U-shaped groove of the iron core and is fixedly connected with the iron core, and a wire connecting the heating element and the connecting plate surrounds the iron core and the bracket; the bracket twined round by the wire is fixedly connected with the middle part of the heating element, the bottom end of the heating element and the bottom end of the bimetallic element are fixedly connected with a supporting member together, and the armature is hung on the bracket surrounded by the wire; and the armature and the iron core twined round by the wire are arranged oppositely to form a magnetic loop, and one end of the armature is attracted by the iron core so as to swing when short-circuit current is generated. The clapping type electromagnetic tripping system disclosed by the present invention-creation is simple and reasonable in structure and can enable the armature to be attracted reliably.
A transmission mechanism includes a link lever, a fan-shaped lever, a spring mechanism and a thrust shaft pin. An outer end of the link lever includes a pin hole and an inner end includes a chute. A cam shaft pin passes through the chute and moves in the chute to drive the link lever when a motor cam rotates. A roller is mounted between the pin hole and the chute. The fan-shaped lever is connected to a main shaft and includes a first chute. The top of the spring mechanism includes a hole. The thrust shaft pin passes through second chutes on two side plates, the first chute, the hole, and the pin hole and links the link lever, the fan-shaped lever and the spring mechanism. The thrust shaft pin compresses the spring mechanism to store energy and drives the fan-shaped lever to rotate and a contact to move.
H01H 3/26 - Dispositions comportant une énergie à l'intérieur de l'interrupteur pour actionner le mécanisme d'entraînement utilisant un moteur dynamo-électrique
H01H 3/42 - Mécanismes-moteurs, c. à d. pour transmettre la force motrice aux contacts utilisant des cames ou excentriques
H01H 9/26 - Mécanismes d'interverrouillage, verrouillage ou accrochage pour interverrouillage de plusieurs interrupteurs
H01H 3/30 - Dispositions comportant une énergie à l'intérieur de l'interrupteur pour actionner le mécanisme d'entraînement utilisant un moteur à ressort
A self-test module of an electronic circuit breaker includes a power supply assembly with a rechargeable battery, a self-test enablement assembly, an induced power supply assembly, a boost power supply, and a micro control unit (MCU). The self-test enablement assembly is connected to the rechargeable battery and includes an enablement button, a capacitor and a first power chip connected in series. The induced power supply assembly includes a buck chip. The boost power supply includes a second power chip and a boost chip connected in series. The MCU includes a plurality of pins that are connected to the first and second power chips, the buck chip, and the boost chip. The self-test module has two working modes; the electronic circuit breaker may be provided with or without a load current. The MCU operates the self-test procedure, indicates the self-test status, and maintains the indication for a period of time.
G01R 31/02 - Essai des appareils, des lignes ou des composants électriques pour y déceler la présence de courts-circuits, de discontinuités, de fuites ou de connexions incorrectes de lignes
G01R 31/327 - Tests d'interrupteurs de circuit, d'interrupteurs ou de disjoncteurs
H02H 1/06 - Dispositions pour fournir la puissance d'actionnement
H02H 3/04 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion - Détails avec signalisation ou supervision additionnée à la déconnexion, p.ex. pour indiquer que l'appareil de protection a fonctionné
A contact module for a circuit breaker is disclosed, comprising: a base, a cover, an operation mechanism, at least three kinds of asymmetrical single-pole switches and a release mechanism. The cover is mounted on the base to form a space, where the mechanisms and the switches are disposed. The operation mechanism is connected to one switch; the release mechanism to the at least three switches. Each switch comprises a strong side and a weak side. For each switch, there is a thick contact housing on the strong side connected to a thick shaft, and a thin one on the weak side connected to a thin shaft. A rotor component has a single contact spring mounted on the weak side. Rotation shafts are connected by a linkage shaft to connect the single-pole switches; a strong side of one switch is connected to a weak side of another switch.
H01H 33/53 - Enveloppes; Réservoirs, cuves, tuyauterie ou robinetterie pour le fluide d'extinction d'arc; Accessoires pour ces dispositifs, p.ex. dispositifs de sécurité, dispositifs de décompression
H01H 33/60 - Interrupteurs dans lesquels les moyens de prévention ou d'extinction des arcs ne comportent pas de moyen séparé destiné à obtenir ou accroître l'écoulement du fluide extincteur d'arc
A rotating dual break point contact includes a rotor support, a first shaft, a second shaft, a third shaft, a first connection rod, a second connection rod, a contact bridge and a contact spring. The contact bridge is provided in the rotor support, and the contact bridge rotates relative to the rotor support by means of the first shaft, the second shaft, the third shaft, the first connection rod and the second connection rod. The contact bridge rotates between an initial pressure position and a maximum repulsion position. A single contact spring is mounted on one side of the contact bridge and is located in the rotor support.
An apparatus having a conductor passing through a magnetic yoke and is mounted on the bracket, in which the magnetic yoke is fixed on the bracket as well. Above the conductor, a shaft is mounted on the top of the bracket. A push rod is mounted on the shaft and rotates with the shaft about the bracket. An armature, spaced apart from the magnetic yoke, is fixed on the push rod. Adjusting mechanisms are mounted on both sides of the shaft between the push rod and the bracket. Within the adjusting mechanism, a torsion spring is around the shaft. An adjusting rod is provided with a plurality of adjusting surfaces which makes contact with the adjusting mechanism. A spring force of the torsion spring enables the push rod to rotate towards a direction which makes the armature and the magnetic yoke separate.
The present invention discloses a protection module for a control and protective switching device, comprising a control power supply processing unit, an auxiliary power supply processing unit, a power supply converting unit, a signal processing and controlling unit, a trip electromagnet driving unit, a control electromagnet driving unit, and a man-machine interaction device. The control power supply processing unit and the auxiliary power supply processing unit receive a power supply signal from a high voltage power supply, and process the signal for supplying power for other components. The signal processing and controlling unit receives a mutual-induction signal from a current mutual inductor, outputs a first control signal and a second control signal to the trip electromagnet driving unit and the control electromagnet driving unit, and receives a first feedback signal and a second feedback signal from an operation mechanism and a control electromagnet. The trip electromagnet driving unit outputs a first operation signal to a trip electromagnet, and the trip electromagnet outputs a mechanical signal to the operation mechanism. The control electromagnet driving unit outputs a second operation signal to the control electromagnet. The man-machine interaction device performs signal interaction with the signal processing and controlling unit.
H01H 47/32 - Courant d'excitation fourni par un dispositif semi-conducteur
H02H 7/22 - Circuits de protection de sécurité spécialement adaptés pour des machines ou appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou ligne, et effectuant une commutation automatique dans le cas d'un chan pour dispositifs de commutation
H02H 1/06 - Dispositions pour fournir la puissance d'actionnement
42.
Contact structure of low-voltage electrical apparatus
The present invention discloses a contact structure of a low-voltage electrical apparatus. The contact structure is in a dual-breakpoint form, and comprises: two U-shaped static contacts, the U-shaped static contact enabling the current direction in the static contact to be opposite to the current direction in a movable contact; a contact bridge; two movable contacts, disposed on the contact bridge, and respectively corresponding to the two static contacts; a contact support member, disposed on the movable contacts and connected to the movable contacts; two main contact springs, symmetrically disposed under the movable contacts and forming an angle with the contact bridge; and a spring support member, disposed under the two movable contacts and connected to the two main contact springs. At a contact position of the static contact and the movable contact and at a repulsed open position of the static contact and the movable contact, the angle between the main contact spring and the contact bridge is between −β and +α.
Disclosed is a control and protection device for a low-voltage electrical apparatus, comprising a pedestal and a control and protection module. The control and protection module may be plugged into the pedestal and is replaceable. The pedestal comprises a base and a housing, and is further provided with a moving contact, a static contact, and a current conductor connected to a main circuit current; a control electromagnet operation mechanism for controlling close and open of the moving contact and the static contact according to a control signal, and maintaining a close or open status of the moving contact and the static contact; a manual operation knob providing a control signal for controlling the close and open of the moving contact and the static contact; a control contact connected to the manual operation knob; and a current sensor for detecting a current that flows through the main circuit current conductor and generating a sensing signal. The control and protection device further comprises: a signal processing unit for controlling a state of the control electromagnet according to the sensing signal via an electrical circuit; and a tripping device for controlling actions of the operation mechanism with a mechanical connection in response to the signal processing unit. The current sensor has a secondary circuit connection detection device.
H02H 3/00 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion
H02H 3/08 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à une surcharge
H01H 71/12 - Mécanismes de déclenchement automatique avec ou sans déclenchement manuel
H01H 73/42 - Disjoncteurs de protection à maximum de courant dans lesquels un courant excessif ouvre les contacts en libérant automatiquement une énergie mécanique emmagasinée par l'actionnement précédent d'un mécanisme à réarmement manuel comportant un déclencheur électromagnétique mais aucun autre déclencheur automatique réarmé par bouton rotatif ou volant
H02H 3/04 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion - Détails avec signalisation ou supervision additionnée à la déconnexion, p.ex. pour indiquer que l'appareil de protection a fonctionné
H01H 71/10 - Mécanismes d'actionnement ou de déclenchement
H01H 89/08 - Combinaison d'un circuit à réarmement manuel avec un contacteur, c. à d. le même circuit étant commandé à la fois par un dispositif de télécommande et un dispositif de protection les deux dispositifs utilisant la même paire de contacts
H01H 89/06 - Combinaison d'un circuit à réarmement manuel avec un contacteur, c. à d. le même circuit étant commandé à la fois par un dispositif de télécommande et un dispositif de protection
H02H 3/16 - Circuits de protection de sécurité pour déconnexion automatique due directement à un changement indésirable des conditions électriques normales de travail avec ou sans reconnexion sensibles à un courant de défaut à la terre ou à la masse
H01R 13/713 - Association structurelle avec des composants électriques incorporés avec interrupteur incorporé l'interrupteur étant un interrupteur de sécurité
A fast closing mechanism includes a rotation shaft and an ejector pin. The ejector pin is rotatably assembled to the side plate by the rotation shaft. The ejector pin strides over the side plate. The ejector pin includes a first portion and a second portion. The first portion is connected to a handle via a rod, and the second portion is located above a press plate. The fast closing mechanism may have an additional ejector pin based on current structures, the press plate may press against a moving contact at an initial stage of a closing process, so that the moving contact will not move during the initial stage of the closing process. The mechanical energy generated during the closing process is stored in an energy storage spring. At a later stage of the closing process, the ejector pin releases the press plate to accomplish closing quickly.
A mounting and fixing apparatus for analog-to-digital electrical equipment according to an embodiment of the present invention comprises: a mounting rail (11), an electrical equipment-insulated pedestal (12) and a stop element (16). By translation and locking of the stop element (16) mounted on the electrical equipment-insulated pedestal (12), the dimension of the opening mounting and fixing the electric equipment to the mounting rail (11) may be manually varied or locked, which greatly improves the firmness and stability for mounting the electric equipment, and thereby realizing convenient mounting and dismounting of the electric equipment or convenient movement or rearrangement of the electric equipment in the mounting rail (11), and enhancing the interchangeability and compatibility for coordination and mounting of the electric equipment to the mounting rail (11).
H05K 7/02 - Dispositions de composants de circuits ou du câblage sur une structure de support
H05K 7/04 - Dispositions de composants de circuits ou du câblage sur une structure de support sur châssis conducteurs
H05K 7/00 - CIRCUITS IMPRIMÉS; ENVELOPPES OU DÉTAILS DE RÉALISATION D'APPAREILS ÉLECTRIQUES; FABRICATION D'ENSEMBLES DE COMPOSANTS ÉLECTRIQUES - Détails de construction communs à différents types d'appareils électriques
H02B 1/20 - Schémas de barres omnibus ou d'autres fileries, p.ex. dans des armoires, dans les stations de commutation
H01R 9/26 - Blocs de connexion à accrochage pour le montage côte à côte sur rail ou sur barrette
46.
Mechanical interlock between two electrical devices
A low voltage electrical appliance having a mechanical interlock means comprises at least two contactors, wherein every contactor includes a base (11, 21), a support (12, 22), a top cover (4) and a contact holding sliding part (13, 23) in the base. Two contactors which are arranged in parallel both have one mechanical interlock means, which includes an interlocking element (3). The shaft of the interlocking element (3) may rotate in the slot of the base (11, 21). By the swinging of the interlocking element (3), a tang of the interlocking element (3) extends into the locking aperture of the contact holding sliding part, thereby preventing the energization action of the contact holding sliding part.
A set of circuit breakers with interlock means, particularly a set of circuit breakers capable of realizing any mechanical interlock and unlock between two or more circuit breakers, wherein in the set of circuit breakers, each circuit breaker has an interlock means, said interlock means comprising a base plate 5, a driving lever (22; 23; 24), a control lever 8, two control arms 27, 28, three tension springs 10, 11, 12, and six cables 13, 14, 15, 16, 17, 18, two cables connected to two ends of the driving lever of each circuit breaker are respectively connected to a control arm of the other two circuit breakers.
brevets
