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1368results about "Protective switch details" patented technology

Anti-interference miniature circuit breaker and use method thereof

The invention relates to the technical field of miniature circuit breakers, and discloses an anti-interference miniature circuit breaker and a use method.The anti-interference miniature circuit breaker comprises a working shell, one side of the inner wall of the working shell is fixedly connected with a fixing frame, the top of the inner wall of the working shell is fixedly connected with a telescopic rod, and the output end of the telescopic rod is fixedly connected with a lifting frame; five irregular holes are formed in one side of the lifting frame, the loading heat dissipation mechanism comprises a cross rod fixedly connected to the side wall of the inner wall of the working shell, a sliding frame is slidably connected to the inner wall of the fixing frame, the bottom end of the sliding frame penetrates through the fixing frame and extends to the outer portion of the fixing frame, and a worker pulls a square plate to make the square plate move downwards; the square plate drives the sliding frame to move downwards, then a plurality of circuit breakers are placed on the inner wall of the fixing frame, the square plate is loosened, the first spring drives the sliding frame to move upwards due to elastic deformation of the first spring, the circuit breakers are extruded in the upward moving process of the sliding frame, and the circuit breakers can be rapidly installed on the inner wall of the fixing frame.
Owner:BEIJING BEVONE ELECTRIC CO LTD

Primary and secondary fusion pole-mounted circuit breaker

The invention relates to the technical field of high-voltage switch equipment, and discloses a primary and secondary fusion pole-mounted circuit breaker which comprises a base, a front plate is arranged on the front side of the base, the base and the front plate are connected through a connecting plate, a first solid-sealed polar pole is arranged on the top of the base, and a second solid-sealed polar pole is arranged on the top of the front plate. A high-voltage input plate is arranged at the top of the solid-sealed polar pole I, a high-voltage output plate is arranged on one side wall of the solid-sealed polar pole I, the connecting frame is fixedly connected between the solid-sealed polar poles I, the bird repelling mechanism is arranged at the top of the connecting frame and used for repelling birds to prevent the birds from stopping, and the shielding mechanism is arranged at the top of the solid-sealed polar pole I. By means of the bird repelling mechanism, the all-weather and intelligent active bird repelling function is achieved, stable equipment operation is guaranteed, a dual-drive mode combining wind power and solar power is adopted, it is guaranteed that the bird repelling function is uninterrupted, pollution flashover or short circuit faults caused by bird activities to high-voltage insulation parts are effectively avoided, and the equipment operation reliability is improved.
Owner:TAILIJIYE CO LTD

Switching device

A switching device comprises a shell, a contact system and two electromagnetic systems, the contact system and the two electromagnetic systems are arranged in the shell, the two electromagnetic systems are oppositely arranged on the two sides of the contact system, and each electromagnetic system comprises an upper armature and a coil used for driving the upper armature to move. The upper armatures of the two groups of electromagnetic systems are connected through a linkage shaft, the contact system comprises a static contact and a moving contact 5 arranged on a contact support 4, the linkage shaft is connected with the contact support, and the two groups of electromagnetic systems respectively drive the contact support to move through the linkage shaft. The contact support drives the moving contact to be in contact with or separated from the static contact, the driving force is large, the action response is fast, the balance is good, and the height of the switching device can be reduced.
Owner:CHINT LOW VOLTAGE ELECTRICAL TECH CO LTD

Auxiliary contact device of molded case circuit breaker

The utility model relates to the technical field of auxiliary contacts of molded case circuit breakers, and discloses an auxiliary contact device of a molded case circuit breaker, which comprises a shell, the outer wall of the shell is fixedly connected with a cylinder, the output end of the cylinder is fixedly connected with a moving block, and the outer wall of the moving block is rotatably connected with a pull plate. A fixing plate is fixedly connected to the inner wall of the shell, a first linkage plate is rotationally connected to the outer wall of the fixing plate, the outer wall of the first linkage plate is rotationally connected to the inner wall of a pulling plate, a second linkage plate is rotationally connected to the inner wall of the pulling plate, and a limiting block is rotationally connected to the outer wall of the second linkage plate. According to the utility model, the output end of the air cylinder drives the moving block and the second linkage plate to rotate on the inner wall of the limiting block and the first linkage plate to rotate on the outer wall of the fixed plate so as to drive the sliding plate to slide on the outer wall of the first sliding rail, and then the contact body can be clamped and fixed through the first clamping block and the second clamping block; the effect of improving the stability of the contact body is achieved.
Owner:SHANGHAI TENGSHENG PUMP MANUFACTURING CO LTD

An electronic leakage circuit breaker

An electronic leakage circuit breaker. It solves the problem that the existing contact system will affect the control circuit board when disconnected. It includes a shell, the shell includes a first shell and a middle shell, the first shell and the middle shell cooperate with each other to form a first accommodating chamber, and also includes: a first contact mechanism, which is arranged in the first accommodating chamber and is arranged in close contact with the middle shell; the first contact mechanism includes a moving contact piece and a static contact piece; a zero-sequence transformer, which is arranged in the first accommodating chamber; a control circuit board, which is connected to the zero-sequence transformer and is used to receive the signal on the zero-sequence transformer; an isolation component, which is arranged between the control circuit board and the first contact mechanism, and is used to separate the control circuit board and the first contact mechanism. The beneficial effect of the utility model is that an isolation component is provided to separate the control circuit board and the first contact mechanism, so as to prevent the arc of the contact mechanism from affecting the control circuit board and thus affecting the life and stability of the product.
Owner:ZHEJIANG ETEK ELECTRICAL TECH CO LTD

Disconnector with volume compensation function

The invention relates to a disconnector with a volume compensation function. The disconnector comprises a mounting shell, and the tail of the mounting shell is in sealed connection with a liquid cooling module; a floating shell is arranged in the mounting shell, a valve element assembly is further arranged in the floating shell, when the disconnector is in a disconnected state, the valve element assembly and the floating shell are matched and sealed to enable a flow channel in the floating shell to be closed, and when the disconnector is connected with an adaptive disconnector, the valve element assembly and the floating shell are unsealed to enable the flow channel in the floating shell to be opened; a first elastic piece enabling the floating shell to move backwards in the axial direction is further arranged in the installation shell, and a stopping structure is further arranged in the installation shell and matched with a limiting part on the floating shell to prevent the floating shell from being disengaged from the tail of the installation shell. And the floating shell is always kept in radial sealing with the mounting shell in the moving stroke of the floating shell. According to the disconnector, when an internal fluid medium reaches a certain threshold value, the internal structure is stressed to axially move forwards, so that the fluid containing space in the mounting shell is enlarged, and the fluid pressure is reduced.
Owner:CHINA AVIATION OPTICAL ELECTRICAL TECH CO LTD

Fault current tolerant switching mechanism for a remotely operated circuit interrupter

A remotely operated circuit interrupter includes: primary separable contacts coupled to an operating mechanism and a thermal-magnetic trip device structured to interrupt current from flowing to loads by opening the primary separable contacts during a fault event; and a fault current tolerant secondary switching mechanism including secondary separable contacts coupled to the primary separable contacts in series, Rogowski coils, a di / dt measurement circuit, a secondary solenoid driver, the Rogowski coils structured to continuously sense a rate (di / dt) of change of load current, the di / dt measurement circuit structured to receive a signal including the sensed di / dt, determine that the sensed di / dt has reached or exceeded a threshold current rate of change, and output a fault signal to the secondary solenoid driver based on the determination, the secondary solenoid driver structured to actuate the solenoids to fully open the secondary separable contacts using arc voltages of the primary and secondary contacts.
Owner:EATON INTELLIGENT POWER LTD

Circuit breaker

The utility model belongs to the technical field of power equipment, and discloses a circuit breaker. The circuit breaker comprises a base and a cover body, the cover body and the base are mutually buckled to form a mounting cavity, a plurality of heat dissipation holes are formed in the top of the cover body, a connecting plate is arranged at the bottom of the cover body, one end of the connecting plate is attached to the end face of the base, a plurality of flow guide structures are arranged on the connecting plate, and the heat dissipation holes and the flow guide structures are all communicated with the mounting cavity. And the mounting cavities can be communicated with the external space through the heat dissipation holes and the flow guide structures. According to the utility model, under the condition that the overall volume of the circuit breaker is not influenced, gas convection is formed, the heat dissipation efficiency is improved, and the temperature rise of the circuit breaker is reduced.
Owner:WUXI XINHONGTAI ELECTRIC TECH CO LTD

Primary and secondary fusion type pole-mounted circuit breaker

The utility model relates to the technical field of pole-mounted circuit breakers, discloses a primary and secondary fusion type pole-mounted circuit breaker, and solves the problems that in the use process of the primary and secondary fusion type pole-mounted circuit breaker, the primary and secondary fusion type pole-mounted circuit breaker is not provided with a protective shielding part, so that the primary and secondary fusion type pole-mounted circuit breaker is directly exposed and is easily influenced by sunlight and rainwater, the service life is shortened, and the cost is reduced. The pole-mounted circuit breaker comprises a pole-mounted circuit breaker body, a supporting bottom plate is fixedly installed at the bottom of the pole-mounted circuit breaker body, a supporting frame is fixedly installed on one side of the pole-mounted circuit breaker body and located on the top of the supporting bottom plate, and a protective shielding assembly is fixedly installed on the top of the supporting frame. An adjusting assembly is installed on the side, away from the pole-mounted circuit breaker body, of the supporting frame. According to the utility model, the primary and secondary fusion type pole-mounted circuit breaker can be prevented from being directly exposed in the using process, the influence of sunlight and rainwater on the primary and secondary fusion type pole-mounted circuit breaker is reduced, the service life of the primary and secondary fusion type pole-mounted circuit breaker is prolonged, and better practicability can be conveniently achieved.
Owner:JIANGSU CHUANGDA ELECTRIC CO LTD

Outdoor circuit breaker

The utility model relates to an outdoor circuit breaker. The technical problem to be solved by the utility model is to provide an outdoor circuit breaker. According to the technical scheme, the circuit breaker comprises a circuit breaker base, base fixing screws and a base lifting handle, the base lifting handle comprises a lifting handle handheld portion, a lifting handle extending portion and a lifting handle inserting portion are arranged on one side of the lifting handle handheld portion, a lifting handle drainage groove is formed between the lifting handle extending portion and the lifting handle inserting portion, and the lifting handle inserting portion is arranged on the lifting handle drainage groove. A lifting handle handheld cavity is formed in the lifting handle handheld part, a lifting handle anti-moving column is arranged in the lifting handle handheld cavity, and a lifting handle elastic clamping hook is arranged on the other side of the lifting handle handheld part. The utility model has the advantages that the base handle is designed to be detachable, no interference is caused to the internal structure, the use is more flexible, after transportation and fixation are completed, the direction is turned, the base handle is covered outside the base fixing screw to form a protective cover, the base fixing screw is prevented from being exposed to cause rusting and mistaken disassembly, and the protective property and the waterproof property are greatly improved.
Owner:ZHEJIANG ANAIGU INTELLIGENT TECH CO LTD

Splicing type disconnecting switch base

The utility model relates to a splicing type disconnecting switch base, which relates to the technical field of switch bases and comprises a mounting base, a cover plate is rotatably mounted on the mounting base, two elastic telescopic rods are hinged between the cover plate and the mounting base, a square clamping groove is formed in the mounting base, and a limiting rod is mounted on one side of the square clamping groove in a sliding manner. The adjustable connecting assemblies are installed on the two sides of the installation base, each adjustable connecting assembly comprises an installation sleeve, the barrel is installed on the installation base, limiting sliding grooves are formed in the inner walls of the installation sleeves, clamping blocks are installed between the limiting sliding grooves in a sliding mode, a plurality of connecting pieces can be connected, and the requirements for different using numbers are met; the mounting base is convenient to disassemble and mount, the clamping blocks can be stored when connection is not carried out, the attractiveness and the applicability are improved, the cover plate can be conveniently opened and locked through the elastic telescopic rod, the reset spring and the limiting rod, and a switch in the mounting base can be conveniently overhauled.
Owner:JINJIANG YESHULUN MASCH CO LTD

Abnormality detection device and abnormality detection method

An abnormality detection device includes: an acquisition unit configured to acquire a state of a relay that is connected to an instrument to be monitored and controls opening and closing of a circuit to which the instrument is connected; a detector configured to detect an abnormality of the instrument on the basis of the state of the relay or a change in the state of the relay; and a notifying unit configured to notify a user of the abnormality detected by the detector.
Owner:OMRON CORP

Printed circuit board for plug-in type breakers

A printed circuit board (PCB) is provided and includes a plurality of edge connectors, a pin connector, and a plurality of electrical lines each electrically connecting one of the plurality of edge connectors to the pin connector. The plurality of edge connectors are positioned on the PCB to enable the plurality of edge connectors to interface with respective connectors of a plurality of configurations of circuit breakers. The configurations may include a configuration including a first type of circuit breaker and a configuration including a second type of circuit breaker. The first and second types of circuit breakers may be 1-63 ampere (A) and 80-125A circuit breakers or 80-125A and 200A circuit breakers, or may be any of a variety of other types.
Owner:VERTIV CORP

Magnetic latching relay

Provided in the embodiments of the present disclosure are a magnetic latching relay, comprising: a base, a contact structure, a first stationary spring lead-out member, a coil assembly and a magnetic circuit structure, wherein the contact structure is arranged on the base, the contact structure has a first end and a second end in a transverse direction, the first end is provided with a first contact group, and the second end is provided with a second contact group; one end of the first stationary spring lead-out member is connected to the first end, and the other end of the first stationary spring lead-out member extends out of the base from the bottom of the base in a vertical direction; the coil assembly and the magnetic circuit structure are arranged on the base and are located on the side of the contact structure in a longitudinal direction; and when a pulse voltage is applied to the coil assembly, the magnetic circuit structure and the coil assembly can form a constant magnetic field, a first center line of the constant magnetic field in the longitudinal direction deviates from a second center line between the first contact group and the second contact group, and is closer to the second contact group, such that the constant magnetic field is far away from the first stationary spring lead-out member. The magnetic latching relay of the present disclosure has a higher stability.
Owner:XIAMEN HONGFA ELECTRIC POWER CONTROLS CO LTD

Miniature circuit breaker with long service life

The invention relates to the technical field of circuit breakers, and discloses a long-service-life miniature circuit breaker which comprises a shell, a handle is rotationally connected to the shell, a limiting plate is slidably connected to the shell, a limiting strip is arranged on the limiting plate, and a limiting groove allowing the limiting strip to be inserted therein is formed in the handle; when the handle is in a circuit disconnection state, the limiting strip can be inserted into the limiting groove; when the handle is in a circuit connection state, the limiting strip cannot be inserted into the limiting groove, and when the handle is in a circuit disconnection state, a worker slides the limiting plate to enable the limiting strip to be inserted into the limiting groove, so that the limiting strip limits the handle, and the handle can be fixed to the shell. The situation that the handle rotates from the circuit disconnection state to the circuit connection state due to the fact that a worker mistakenly touches the handle is avoided, and the worker is not prone to danger in the maintenance process.
Owner:XINCHI ELECTRIC GRP CO LTD

Primary and secondary fusion pole-mounted circuit breaker

The invention relates to the technical field of pole-mounted circuit breakers, and discloses a primary and secondary fusion pole-mounted circuit breaker, which comprises a circuit breaker and a mounting bracket, a mounting plate is arranged on the mounting bracket, a mounting hole is formed in the mounting plate, an adjusting plate is rotatably connected in the mounting hole, a gradienter is arranged on the adjusting plate, and the gradienter is arranged on the mounting plate. A fixing structure used for fixing the adjusting plate is arranged on the installing plate, the circuit breaker is installed on the adjusting plate, a worker firstly installs the installing support on a wire column, then the adjusting plate is rotated, the adjusting plate is determined to be in a horizontal state through the gradienter, and finally the worker installs the circuit breaker on the adjusting plate through the fixing structure. And the adjusting plate can stably realize the installation of the circuit breaker.
Owner:ZHEJIANG SHUNTENG ELECTRIC CO LTD

False pull-out prevention buckle device and circuit breaker

The utility model discloses a device for preventing a buckle from being pulled out by mistake. The device comprises a shell which can be inserted into or pulled out of a case, and a panel, a handle and a buckle which are arranged in the shell, wherein a clamping groove penetrating through the inside and the outside of the shell is formed in the side wall of the shell; the panel is close to the clamping groove and is arranged in the shell; the handle is arranged on the panel in a sliding manner; the buckle is installed in the shell in a sliding mode in the direction of the clamping groove, and the included angle between the face, back to the case, of the buckle and the outer side face, facing the buckle, of the shell is smaller than or equal to 90 degrees. When the handle slides into the shell, the buckle can extend out of the shell from the clamping groove under the action of external force; when the handle slides out of the shell, the buckle can be driven by the handle to retract into the shell. According to the utility model, when the circuit breaker is inserted into the cabinet and is switched on, the buckle extends out of the shell and is clamped in the preset groove of the cabinet, so that the circuit breaker cannot be pulled out of the cabinet in a switched-on state, the risk of electric shock of an operator in the process of switching on and switching off the cabinet is effectively avoided, and the safety of the circuit breaker is improved.
Owner:GUIZHOU TAIYONG CHANGZHENG TECH CO LTD

Electric circuit breaker device

An electric circuit breaker device includes a housing, an igniter, a projectile, and a conductor piece including, between a first connection end portion and a second connection end portion, a cutoff portion to be cut by movement of the projectile, in which a boundary portion with the cutoff portion from which the cutoff portion is cut in the first connection end portion of the conductor piece held in the housing is defined as a first cutting edge portion, and a boundary portion with the cutoff portion from which the cutoff portion is cut in the second connection end portion is defined as a second cutting edge portion, and a groove is formed at a position corresponding to the conductor piece crossing an accommodating space and in a predetermined inter-edge inner wall region positioned between the first cutting edge portion and the second cutting edge portion, in an inner wall surface of the housing.
Owner:DAICEL CORP

Primary and secondary fusion pole-mounted circuit breaker and assembly equipment thereof

The invention relates to the technical field of circuit breaker assembling and manufacturing, in particular to a primary and secondary fusion pole-mounted circuit breaker and assembling equipment thereof.The pole-mounted circuit breaker comprises a main body, the main body is composed of a mechanism box and an arc extinguish chamber, the arc extinguish chamber is movably connected to the top of the mechanism box in an inserted mode, and assembling is conducted in an inserted installation mode; the assembling equipment comprises a rack, a material frame and a conveying frame for installing a conveying belt, a clamping mechanism and a deviation rectifying mechanism are installed on the two sides of the conveying frame correspondingly, a reciprocating driving mechanism is arranged between the material frame and the conveying frame, and a clamping mechanism used for positioning the mechanism box is arranged on the outer side of the conveying frame; the outer side of the conveying frame is further provided with a jacking mechanism used for pulling the pull column outwards, steering of the clamped arc extinguish chamber is automatically completed through the reciprocating driving mechanism, and the reciprocating driving mechanism is matched with the clamping mechanism and the deviation rectifying mechanism to complete automatic clamping of the arc extinguish chamber to be installed and installation direction correction.
Owner:北二变电气有限公司

Circuit breaker and power equipment

The invention provides a circuit breaker and power equipment. The circuit breaker comprises a shell, an operating handle, an operating mechanism, a through-flow assembly, an arc extinguishing chamber and an arc extinguishing module. And the operating handle, the operating mechanism, the through-flow assembly, the arc extinguishing chamber and the arc extinguishing module are sequentially arranged along the depth direction of the circuit breaker. The through-flow assembly comprises a moving contact assembly and a static contact. The operating mechanism is connected with the moving contact assembly. The operating handle is used for controlling the operating mechanism to drive the gas production connecting rod of the moving contact assembly to rotate, so that the moving contact is in contact with or separated from the static contact. The arc extinguish chamber is used for eliminating electric arcs generated when the moving contact is separated from the static contact. The arc extinguishing module is used for purifying gas sprayed out of the arc extinguishing chamber. All the mechanisms of the circuit breaker are arranged in the depth direction of the circuit breaker, the size in the height direction is small, and the number of circuit breakers capable of being arranged in a cabinet is increased. And when the moving contact is separated from the static contact, the gas production connecting rod is used for forming gas blowing, so that the arc passes through the arc extinguishing chamber along the depth direction to realize arc extinguishing, and the safety of the circuit breaker is improved.
Owner:HUAWEI DIGITAL POWER TECH CO LTD

Primary and secondary fusion complete column-mounted circuit breaker

The utility model discloses a primary and secondary fusion complete pole-mounted circuit breaker, which comprises a fixed seat and a mounting bracket, the mounting bracket is assembled on the fixed seat, the surface of the fixed seat is uniformly provided with two fixing grooves, and the mounting bracket comprises a first support frame, a second support frame, a first connecting frame and a second connecting frame, a first connecting frame and a second connecting frame are fixedly connected to the inner sides of the first supporting frame and the second supporting frame respectively, the first connecting frame and the second connecting frame are fixedly installed in the fixing grooves through bolt connection, and a circuit breaker body is assembled on the top surfaces of the first supporting frame and the second supporting frame. In combination with the structural design of the utility model, the mounting bracket is fixed on the surface of the fixed seat, so that fasteners fixed on the surface of the wire column are reduced, the occupied space is small, the aesthetic property of a city is increased, and meanwhile, the structural design is adopted, so that the mounting bracket is convenient to disassemble and assemble during subsequent maintenance work.
Owner:ZHEJIANG GUYUAN ELECTRIC POWER TECH

Communication circuit and circuit breaker

The utility model provides a communication circuit and a circuit breaker. According to the communication circuit provided by the invention, the to-be-sent data or the high-level control signal is used as the TX signal to be sent to the signal sending circuit, the signal sending circuit generates the target control signal used for controlling the transceiving state of the RS485 chip based on the TX signal, when the TX signal is at the high level, the transceiving state of the RS485 chip is the receiving state, and when the TX signal is at the low level, the transceiving state of the RS485 chip is the receiving state. The receiving and transmitting state of the RS485 chip is a transmitting state, and the transmitter input pin of the RS485 chip is grounded, so that the receiving and transmitting of data can be automatically controlled, the data can be correctly received and transmitted, and the communication requirement is met. Besides, the to-be-sent data is used as the TX signal, the TX signal can be used for controlling the transceiving state of the RS485 chip, and the TX signal can also be used for completing the data sending process. On the premise of ensuring accurate data transmission, the control process of the RS485 chip is simplified, and the circuit structure is simplified.
Owner:ZHEJIANG CHINT ELECTRIC CO LTD

Circuit breaker convenient to combine and assemble

The utility model relates to the technical field of circuit breakers, and discloses a circuit breaker convenient to combine and assemble, which comprises a mounting seat and a plurality of circuit breaker bodies, screws penetrate through four corners of the mounting seat, the screws are in threaded connection with the mounting seat, one side of each circuit breaker body is fixedly connected with a mounting block, and the mounting block is fixedly connected with the mounting seat. A plurality of mounting grooves matched with the mounting blocks are formed in the mounting seat, and limiting assemblies used for fixing the circuit breaker body are arranged at the tops and the bottoms of the mounting blocks; according to the circuit breaker convenient to combine and assemble, after the mounting base is fixed on a wall or a counter through a plurality of screws, the mounting block on one side of the circuit breaker body is inserted into the mounting groove, the circuit breaker body can be well fixed through the limiting assembly, and when the circuit breaker is damaged in the using process, the circuit breaker can be conveniently assembled. According to the circuit breaker, only the corresponding circuit breaker body can be disassembled and replaced, and all the circuit breaker bodies or the mounting seats do not need to be disassembled, so that people can conveniently maintain the circuit breaker.
Owner:BAODING PEIYUE ELECTRIC POWER ENGINEERING CO LTD

Circuit breaker molded case

The utility model relates to the technical field of circuit breakers, and discloses a circuit breaker molded case which comprises a base and a cover body covering the base, the end face, facing the cover body, of the base is provided with a containing groove, a switch used for controlling closing and opening of a circuit breaker is installed in the containing groove, and the cover body is provided with a through hole allowing the switch to penetrate through. Two mounting plates are arranged on the side, away from the base, of the cover body, the through hole is located between the two mounting plates, a protective cover for covering the switch is rotationally connected between the two mounting plates, and the mounting plates and the protective cover are provided with locking structures for connecting the mounting plates and the protective cover.
Owner:YUEQING JINCHI ELECTRIC CO LTD

Moving contact assembly with limiting structure and molded case circuit breaker

The moving contact assembly with the limiting structure comprises a contact support and a moving contact, the contact support comprises a base and a cover body which are connected with each other, the front end and the rear end of the contact support are respectively provided with a first opening and a second opening, a contact rotating shaft and a buffer chamber are arranged in the contact support, a buffer piece is arranged in the buffer chamber, and the moving contact is arranged in the buffer piece. The moving contact sequentially comprises a rotating part, an extending part and a bearing part, a moving contact is arranged on the side face of the bearing part, the tail of the rotating part is arranged close to the first opening, the extending part penetrates through the second opening, a shaft hole is formed in the rotating part, the bottom of the rotating part extends downwards to form a limiting part, the contact rotating shaft is connected into the shaft hole, and the limiting part is arranged right opposite to the buffering piece. According to the moving contact assembly with the limiting structure, the impact force of the moving contact on the contact support can be reduced, deformation of the contact support caused by long-term use of a molded case circuit breaker is avoided, the matching accuracy of the moving contact and the static contact is ensured, the service life of the molded case circuit breaker is prolonged, and the opening and closing performance of the molded case circuit breaker is improved.
Owner:ZHEJIANG KANGWEI ELECTRIC PARTS CO LTD

Multi-pole electrical wiring devices with wire termination assemblies

Multi-pole or multi-phase electrical wiring devices that incorporate clamp-type wire termination assemblies are described. The electrical wiring devices include multi-pole motor switches. The electrical wiring devices include a plurality of wire termination assemblies. Each wire termination assembly includes a wire terminal and an activating member.
Owner:HUBBELL INC

Circuit breaker and electrical device

The present application provides a circuit breaker and an electrical device. The circuit breaker comprises a housing, and an operating handle, an operating mechanism, a current-conducting assembly, and an arc extinguishing chamber which are sequentially provided in the housing along the depth direction of the circuit breaker. The operating mechanism comprises two mounting plates, a latch assembly, and at least one operating assembly. The operating assembly comprises a trip lever, an upper connecting rod, a lower connecting rod, and springs. Along the height direction of the circuit breaker, the latch assembly is located on one side of the rotating center of the trip lever, and the upper connecting rod and the lower connecting rod are located on the other side of the rotating center. Each mounting plate is provided with a limiting rod which is used for limiting rotation of the trip lever and the upper connecting rod when the latch assembly unlocks the trip lever. The upper connecting rod is provided with a limiting rod which is used for limiting the rotation angle of the trip lever during switching-on / switching-off. The mechanisms of the circuit breaker are provided along the depth direction, resulting in a smaller dimension along the height direction. In addition, the operating mechanism has a simple structure and allows for locking and unlocking, thereby facilitating the miniaturization of the circuit breaker, and thus allowing for an increased number of circuit breakers to be arranged within a cabinet.
Owner:HUAWEI DIGITAL POWER TECH CO LTD

Circuit breaker capable of dissipating heat under high load

The utility model is suitable for the technical field of circuit breakers, and provides a circuit breaker capable of dissipating heat under high load, which comprises a mounting plate and a circuit breaker body assembled on one side of the mounting plate, the heat conduction pad is assembled on the circuit breaker body; the radiating fins are arranged on the heat conduction pad; the mounting frame is arranged at the top of the mounting plate in a sliding manner; the heat dissipation fan is fixedly mounted on the mounting rack, and the heat dissipation fan is located above the circuit breaker body; and the mounting mechanism is arranged on one side of the mounting plate and is used for mounting the mounting plate. According to the technical scheme of the utility model, the heat transfer efficiency can be effectively improved, so that the heat dissipation effect is indirectly improved, and the heat dissipation efficiency is high.
Owner:NINGBO YOUXING ELECTRONIC TECH CO LTD

Universal circuit breaker with external protection component

The utility model discloses a universal circuit breaker with a peripheral protection component, which comprises a circuit breaker main body and mounting page plates, the mounting page plates are arranged on two sides of the circuit breaker main body, and through holes are formed in the mounting page plates and are matched with bolts to be used for mounting the circuit breaker main body. According to the utility model, the fluted disc is sleeved at the outer side of the circuit breaker switch rotating rod, when the rotating handle and the circuit breaker switch rotating rod need to be rotated to control the opening and closing of the circuit breaker main body, the guide rod is rotated firstly to enable the rotating disc, the connecting rod, the connecting shaft and the impact block to rotate, and the impact block is rotated to abut against the locking clamping plate at the right side to turn over, so that the fluted disc rotates reversely; according to the utility model, the two groups of locking clamping plates are used for clamping the fluted disc under the pushing action of the reset spring, so that the position locking of the circuit breaker switch rotating rod can be realized, and the condition of mistaken touch is prevented from happening. The circuit breaker switch rotating rod is enabled to rotate reversely to realize the closing of the circuit breaker main body, otherwise, the fluted disc is clamped by using the two groups of locking clamping plates to realize the locking of the position of the circuit breaker switch rotating rod.
Owner:NELLER ELECTRIC CO LTD