CN218677003U

CN218677003U - Circuit breaker, power supply unit and distribution equipment

Info

Publication number: CN218677003U
Application number: CN202222286632.1U
Authority: CN
Inventors: 杨焱兴; 陈业震; 陆晓龙
Original assignee: Huawei Digital Power Technologies Co Ltd
Current assignee: Huawei Digital Power Technologies Co Ltd
Priority date: 2022-08-26
Filing date: 2022-08-26
Publication date: 2023-03-21
Anticipated expiration: 2032-08-26

Abstract

The embodiment of the application provides a circuit breaker, power supply unit and distribution equipment, and this circuit breaker includes the casing, and the casing is used for inserting and establishes in power supply unit's the frame of inserting. The first shell wall of the shell is provided with a brake-separating rotating block, and the brake-separating rotating block is rotatably connected with the shell. The opening rotating block is used for rotating towards the shell when the shell is inserted into the insertion frame so as to switch the circuit breaker in a closing state into an opening state, and rotating towards the accommodating groove in the side wall of the insertion frame when the shell is inserted into the assembly position in the insertion frame so as to enable part of the opening rotating block to be accommodated in the accommodating groove. The opening rotating block is also used for rotating the shell positioned at the assembling position to the outside of the accommodating groove when the shell is pulled out of the inserting frame so as to switch the circuit breaker in a closing state into an opening state. Through setting up the separating brake commentaries on classics piece, the casing can make circuit breaker automatic switch-over be the separating brake state when the plug, and circuit breaker and power supply unit dismouting process are comparatively simple, security when can improve circuit breaker and power supply unit and carry out the dismouting.

Description

Circuit breaker, power supply unit and distribution equipment

Technical Field

The embodiment of the application relates to the technical field of distribution equipment, in particular to a circuit breaker, a power supply device and distribution equipment.

Background

In a power supply and distribution system, a circuit breaker is generally required to connect a power supply device and a power utilization circuit to realize distribution of electric energy, and the circuit breaker can play a role in controlling the on and off of the circuit.

The circuit breaker is provided with an incoming line terminal and an outgoing line terminal, wherein the incoming line terminal is used for being electrically connected with a power supply device, the outgoing line terminal is used for being electrically connected with a power utilization circuit, the circuit breaker has a closing state and an opening state, when the circuit breaker is in the closing state, the incoming line terminal is conducted with the outgoing line terminal, and when the circuit breaker is in the opening state, the incoming line terminal is disconnected with the outgoing line terminal.

In some related art, a circuit breaker includes a housing configured to be inserted into an insertion frame of a power supply device, wherein an incoming line terminal and an outgoing line terminal are respectively provided at opposite ends of the housing, and one end provided with the incoming line terminal is configured to be inserted into the insertion frame. After the shell is inserted into the insertion frame, one end provided with the wire outgoing terminal is positioned in the insertion frame so as to enable the wire incoming terminal to be electrically connected with a power supply connecting terminal of a power supply device in the insertion frame, and the other end provided with the wire outgoing terminal is positioned outside the insertion frame so as to facilitate the wire outgoing terminal to be electrically connected with a power receiving connecting terminal of a power utilization circuit. The shell is also provided with a mechanical switch, the mechanical switch is used for controlling the circuit breaker to switch between a closing state and an opening state, and the mechanical switch is usually arranged at one end of the shell, which is provided with an outlet terminal.

However, in the related art, before the circuit breaker and the power supply device are assembled and disassembled, the mechanical switch needs to be manually controlled to switch the circuit breaker to the open state, the assembly and disassembly of the circuit breaker and the power supply device are complicated, and safety accidents caused by the assembly and disassembly of the circuit breaker in the closed state and the power supply device are easy to occur.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a circuit breaker, a power supply device and power distribution equipment. Through set up the separating brake commentaries on classics piece on the casing of circuit breaker, the casing is inserting power supply unit insert the frame and when the frame is extracted from having the frame of inserting of holding tank at the assembly position, all can rotate through making the separating brake commentaries on classics piece, makes circuit breaker automatic switch-over be the separating brake state, and circuit breaker and power supply unit dismouting process are comparatively simple, security when can improving circuit breaker and power supply unit and carry out the dismouting.

The present application provides in a first aspect a circuit breaker for assembly on a power supply unit having an insert frame, the circuit breaker including a housing for insertion into the insert frame. The shell comprises a first shell wall in the first direction, the first shell wall is provided with a brake-separating rotating block, and the brake-separating rotating block is rotatably connected with the shell. The opening rotating block is used for rotating towards the shell when the shell is inserted into the insertion frame so as to switch the circuit breaker in a closing state into an opening state, and rotating towards the accommodating groove in the side wall of the insertion frame when the shell is inserted into the assembly position in the insertion frame so as to enable part of the opening rotating block to be accommodated in the accommodating groove. The opening rotating block is also used for rotating the shell positioned at the assembling position to the outside of the accommodating groove when the shell is pulled out of the inserting frame so as to switch the circuit breaker in a closing state into an opening state. The shell is inserted into or pulled out of the insertion frame along a second direction, and the first direction is perpendicular to the second direction.

The circuit breaker of this application embodiment through set up the separating brake commentaries on classics piece on the casing at the circuit breaker, the casing is inserting power supply unit insert the frame and when extracting in the frame from inserting that has the holding tank at the assembly position, all can rotate through making the separating brake commentaries on classics piece to make circuit breaker automatic switch-over be the separating brake state, reducible circuit breaker and the operation step of power supply unit dismouting in-process, the dismouting process is comparatively simple. In addition, when the breaker is disassembled and assembled, the breaker in the closing state can be switched to the opening state without manual operation, and the risk of safety accidents caused by disassembling and assembling the breaker in the closing state and the power supply device can be reduced.

In one possible embodiment, a first spring is arranged between the opening rotary block and the housing, and when the opening rotary block rotates towards the housing, the first spring is switched from a first initial state to a first power storage state. The acting force applied to the brake rotating block when the first spring is in the first power storage state is larger than the acting force applied to the brake rotating block when the first spring is in the first initial state.

In a possible embodiment, the opening rotating block comprises a pressed part located outside the shell, and the pressed part comprises a first inclined surface and a second inclined surface. The first inclined plane is used for enabling the brake-separating rotating block to rotate towards the shell by being pressed by the side wall of the inserting frame when the shell is inserted into the inserting frame. The second inclined plane is used for enabling the brake-separating rotating block to rotate towards the shell by being pressed by the side wall of the inserting frame when the shell located at the assembling position is pulled out of the inserting frame. The rotating direction of the opening rotating block when the first inclined plane is pressed by the side wall of the inserting frame is the same as the rotating direction of the opening rotating block when the second inclined plane is pressed by the side wall of the inserting frame.

In a possible embodiment, the opening rotating block is rotatably connected with the housing in the housing, a first penetrating opening for the opening rotating block to rotate is formed in the first housing wall, and the opening rotating block is arranged in the first penetrating opening in a penetrating manner. The opening rotating block comprises a limiting part positioned in the shell, and the limiting part is used for abutting against the first shell wall so as to limit the rotating position of the opening rotating block.

In a possible embodiment, a push block mechanism is further provided on the housing. The push block mechanism is used for being pressed by the insertion frame to act when the shell is inserted into the insertion frame, so that the breaker is switched from an opening state to a closing state when the shell is inserted into the assembly position.

In one possible embodiment, the housing further comprises a second wall in the second orientation for receipt in the insert frame, the push block mechanism being provided on the second wall. The push block mechanism is used for being pressed by the bottom wall of the insertion frame to act when the shell is inserted into the insertion frame.

In a possible embodiment, when the circuit breaker is in a closing state, the push block mechanism is located on a rotation path of the opening rotating block. When the circuit breaker is in a closing state, the push block mechanism is also used for being pressed by the opening rotating block rotating in the shell to act so as to switch the circuit breaker in the closing state into the opening state.

In one possible embodiment, the pusher mechanism includes a closing pusher. The closing push block comprises a sliding portion and a closing touch portion, the sliding portion is in sliding fit with the shell and can slide relative to the shell along the second direction, and the sliding portion is used for being pressed by the insertion frame to slide when the shell is inserted into the insertion frame, so that the circuit breaker is switched from a closing state to an opening state when the shell is inserted into the assembly position. The opening and closing touch part is fixedly connected with the sliding part in the shell, and when the circuit breaker is in a closing state, the opening and closing touch part is positioned on a rotating path of the opening and closing rotating block. When the circuit breaker is in a closing state, the opening touch part is used for being pressed by the opening rotating block rotating in the shell to enable the sliding part to slide, so that the circuit breaker in the closing state is switched to the opening state.

In a possible embodiment, a second through hole is formed in a second casing wall located in the second direction of the casing and used for being accommodated in the insertion frame, and the sliding portion is inserted into the second through hole. The sliding part is used for being pressed by the bottom wall of the inserting frame to slide towards the shell when the shell is inserted into the inserting frame. When the circuit breaker is in a closing state, the opening and closing touch part is used for being pressed by the opening and closing rotating block rotating towards the shell to drive the sliding part to slide towards the outside of the shell.

In one possible embodiment, in the first direction, the opening contact portion is located between the sliding portion and the first housing wall. The brake separating and pressing part is also used for abutting against the second shell wall so as to limit the sliding position of the sliding part.

In a possible embodiment, the circuit breaker further comprises a switching-on/off actuator, and the switching-on/off actuator is arranged in the housing. The opening and closing actuating mechanism comprises a rotating assembly, a movable contact and a fixed contact, the rotating assembly is rotatably connected with the shell, the movable contact is fixedly connected to the rotating assembly, the rotating assembly can drive the movable contact to rotate, the fixed contact is fixedly connected with the shell, and the fixed contact is located on a rotating path of the movable contact. The push block mechanism further comprises a first connecting rod, a control rotating block and a second connecting rod, and the control rotating block is rotatably connected with the shell. The first connecting rod comprises a first hinged end and a second hinged end which are opposite, the first hinged end is hinged with the edge of the rotating assembly, and the second hinged end is hinged with the edge of the control rotating block. The second connecting rod comprises a third hinged end and a fourth hinged end which are opposite, the third hinged end is hinged with the edge of the control rotating block, and the fourth hinged end is hinged with the sliding part. When the shell is inserted into the insertion frame to enable the sliding part to be pressed by the insertion frame to slide, the sliding part drives the movable contact to rotate towards the direction close to the fixed contact through the second connecting rod, the control rotating block, the first connecting rod and the rotating assembly, so that when the shell is inserted into the assembly position, the movable contact is in contact with the fixed contact, and switching of the circuit breaker from an opening state to a closing state is achieved. When the sliding part slides due to the fact that the sliding part is pressed by the brake-separating rotating block rotating towards the shell, the sliding part drives the movable contact to rotate towards the direction far away from the fixed contact through the second connecting rod, the control rotating block, the first connecting rod and the rotating assembly, and the movable contact is separated from the fixed contact, so that switching of the circuit breaker from a closing state to a brake-separating state is achieved.

In a possible implementation manner, a second spring is arranged between the control rotating block and the shell, and when the shell is inserted into the insertion frame, the sliding portion is pressed by the insertion frame to drive the control rotating block to rotate, the second spring is switched from a second initial state to a second power storage state. And a third spring is arranged between the rotating assembly and the shell, and when the rotating assembly rotates towards the direction that the movable contact point approaches to the fixed contact point, the third spring is switched from a third initial state to a third power storage state. The second hinged end and the third hinged end are arranged at intervals along the edge of the control rotating block, and when the movable contact is in contact with the fixed contact, the second hinged end and the third hinged end are respectively positioned on two sides of the self-locking plane, so that the control rotating block is switched into a self-locking state. The acting force applied to the control rotating block when the second spring is in the second power storage state is larger than the acting force applied to the control rotating block when the second spring is in the second initial state. The force exerted on the rotating assembly by the third spring in the third accumulated force state is greater than the force exerted on the rotating assembly by the third spring in the third initial state. The self-locking plane is a plane where a rotating shaft of the first hinged end rotating relative to the rotating assembly and a rotating shaft controlling the rotating block to rotate relative to the shell are located.

In one possible embodiment, the circuit breaker further comprises a protection mechanism. The rotating assembly comprises a rotating arm, a locking rotating block, a tripping rotating block and a fourth spring. The rotating arm and the tripping rotating block are both rotationally connected with the shell, the rotating arm is coaxial with the rotating shaft of the tripping rotating block relative to the shell, a movable contact is arranged at one end of the rotating arm, the other end of the rotating arm is hinged with one end of the locking rotating block, the other end of the locking rotating block is fastened with the tripping rotating block, a fourth spring is arranged between the tripping rotating block and the rotating arm, the locking rotating block is pressed and fixed on the rotating arm by the fourth spring, the first hinged end is hinged with the locking rotating block, and a third spring is arranged between the rotating arm and the shell. The protection mechanism is in transmission connection with the edge of the tripping rotary block and is used for driving the tripping rotary block to rotate towards the direction far away from the lock catch rotary block when the current flowing through the circuit breaker exceeds a preset value, so that the tripping rotary block and the lock catch rotary block are tripped. After the tripping rotating block and the locking rotating block are tripped, the locking rotating block is used for driving the first hinged end to rotate relative to the rotating arm to a position where the second hinged end and the third hinged end are located on the same side of the self-locking plane, so that the movable contact is separated from the fixed contact under the action of the third spring.

In a possible embodiment, the housing further includes a third housing wall in the second direction, the third housing wall is configured to be disposed outside the plug frame, the third housing wall is provided with an outlet interface, and an outlet terminal is disposed in the outlet interface. The shell is further provided with a communicating hole communicated with the wire outlet interface, the axis of the communicating hole is perpendicular to the axis of the wire outlet interface communicated with the communicating hole, and a locking bolt penetrates through the communicating hole and is used for locking and fixing the power receiving connecting terminal inserted in the wire outlet interface.

In a possible implementation manner, the wire outgoing terminal comprises a wire connection frame, the wire connection frame is fixedly connected with the shell, the wire connection frame is provided with a threaded hole opposite to the communication hole, the threaded hole is a through hole, the locking bolt is in threaded connection with the hole wall of the threaded hole opposite to the communication hole where the locking bolt is located, and the locking bolt is used for locking and fixing the power receiving connection terminal inserted in the wire connection frame on the wire connection frame.

A second aspect of the present application provides a power supply apparatus for assembling the circuit breaker of any of the above embodiments. The power supply device comprises an insertion frame, wherein the insertion frame is used for inserting a shell of the circuit breaker, and an accommodating groove is formed in the side wall of the insertion frame. The inserting frame is used for enabling the opening rotating block of the circuit breaker to rotate towards the inside of the shell when the shell is inserted into the inserting frame. The accommodating groove is used for providing a space for enabling the opening rotating block to rotate towards the accommodating groove when the shell is inserted into the assembling position in the inserting frame, so that part of the opening rotating block is accommodated in the accommodating groove. The inserting frame is also used for enabling the opening rotating block to rotate into the shell to the outside of the accommodating groove when the shell located at the assembling position is pulled out of the inserting frame.

A third aspect of the present application provides a power distribution apparatus including the power supply device in any one of the above embodiments and the circuit breaker in any one of the above embodiments. The casing of circuit breaker is inserted and is established in power supply unit's the frame of inserting, and the separating brake commentaries on classics piece part of circuit breaker holds in power supply unit's holding tank.

Drawings

Fig. 1 is a schematic diagram of a power distribution apparatus provided in an embodiment of the present application;

fig. 2 is a schematic diagram of a view angle of a circuit breaker in an opening state according to an embodiment of the present application;

fig. 3 is an internal schematic view of a plug frame of a power supply device according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of a circuit breaker provided in an embodiment of the present application when a housing is located at a socket of a socket frame;

fig. 5 is a schematic diagram of a circuit breaker provided in an embodiment of the present application when a housing is located between a socket of a socket frame and an assembly position;

fig. 6 is a schematic diagram of a circuit breaker provided in an embodiment of the present application when a housing is in an assembled position;

fig. 7 is a schematic diagram of another view angle when the circuit breaker is in the opening state according to the embodiment of the present application;

fig. 8 is an internal schematic view of a circuit breaker provided in an embodiment of the present application when the circuit breaker is in a closing state;

fig. 9 is an internal schematic view of a circuit breaker provided in an embodiment of the present application in an opening state.

Description of reference numerals:

100. a circuit breaker;

110. a housing; 111. a first shell wall; 112. a second shell wall; 113. a third shell wall; 114. an outgoing line interface; 115. locking the bolt; 116. a first through hole; 117. a second through hole; 118. a signal terminal; 119. an arc extinguishing outlet hole; 120. an outlet terminal; 121. a wiring frame; 130. an incoming terminal;

200. a power supply device;

210. inserting a frame; 211. a side wall; 212. a bottom wall; 213. an interface; 214. accommodating grooves; 220. a power supply connection terminal; 230. A signal circuit board;

300. a switching-off rotating block;

310. a first spring; 320. a pressure receiving portion; 321. a first inclined plane; 322. a second inclined plane; 330. a limiting part; 340. a brake-separating triggering part;

400. a push block mechanism;

410. closing a switch push block; 411. a sliding part; 412. a brake-separating touch-press part; 420. a first link; 421. a first hinged end; 422. A second hinged end; 430. controlling a rotating block; 440. a second link; 441. a third hinge end; 442. a fourth hinged end; 450. A self-locking plane; 460. a second spring;

500. a switching-on and switching-off actuating mechanism;

510. a rotating assembly; 511. a rotating arm; 512. locking and rotating blocks; 513. tripping and rotating blocks; 514. a fourth spring; 515. a chute; 516. tripping the lug; 520. a movable contact; 530. a stationary contact; 540. a third spring;

600. a protection mechanism;

610. a first protection component; 611. a heat-sensitive deformable sheet; 612. a third link; 620. a second protection component; 621. an electromagnet; 622. an armature; 623. a fifth spring;

700. an arc extinguishing mechanism.

Detailed Description

The terminology used in the description of the embodiments of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the application, as the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

The power distribution equipment provided by the embodiment of the application can comprise but is not limited to a distribution box, a power distribution cabinet, a distribution box and the like. The power distribution equipment can be power distribution equipment for household power consumption, power distribution equipment for industrial power supply or power distribution equipment for public facilities.

As shown in fig. 1, the power distribution apparatus provided by the embodiment of the present application may include a power supply device 200 and a circuit breaker 100, where the circuit breaker 100 is mounted on the power supply device 200, the circuit breaker 100 is electrically connected to the power supply device 200, and the circuit breaker 100 is used for electrically connecting an electric circuit. For example, the circuit breaker 100 may be inserted into the power supply apparatus 200, the second direction in the figure is a moving direction of the circuit breaker 100 when the circuit breaker is inserted into or removed from the power supply apparatus 200, and the first direction is a direction perpendicular to the second direction.

It is understood that the circuit breaker 100 can be used to connect, carry, and disconnect the current between the power supply device 200 and the power utilization circuit, which can include power utilization devices, such as household appliances, industrial lathes, communication base stations, and the like.

The power supply device 200 may be a power supply, a grid connection device for electrically connecting to a power supply grid, a power generation device, or the like. Illustratively, the power supply 200 may be a blade power supply.

One or more circuit breakers 100 may be mounted on the power supply apparatus 200, and when a plurality of circuit breakers 100 are mounted on the power supply apparatus 200, the plurality of circuit breakers 100 may be arranged in a straight line or in a matrix.

as shown in fig. 2 and referring to fig. 1, a circuit breaker 100 provided by the embodiment of the present application may include an incoming terminal 130 and an outgoing terminal 120, where the incoming terminal 130 is configured to be electrically connected to a power supply 200, and the outgoing terminal 120 is configured to be electrically connected to a power utilization circuit. The circuit breaker 100 has a closed state and an open state. When the circuit breaker 100 is in a closed state, the incoming terminal 130 is conducted with the outgoing terminal 120. When the circuit breaker 100 is in the open state, the incoming terminal 130 and the outgoing terminal 120 are disconnected. The switching of the circuit between the power consumption circuit connected through the circuit breaker 100 and the power supply apparatus 200 can be controlled by controlling the switching of the circuit breaker 100 between the closing state and the opening state.

It is understood that there may be two inlet terminals 130 of circuit breaker 100, namely, a positive inlet terminal and a negative inlet terminal, and there may be two outlet terminals 120 of circuit breaker 100, namely, a positive outlet terminal and a negative outlet terminal. The positive electrode inlet terminal is used for being electrically connected with the positive electrode of the power supply device 200, the negative electrode inlet terminal is used for being electrically connected with the negative electrode of the power supply device 200, the positive electrode outlet terminal is used for being electrically connected with the positive electrode of the power utilization circuit, and the negative electrode outlet terminal is used for being electrically connected with the negative electrode of the power utilization circuit. When the circuit breaker 100 is in a closed state, the positive inlet terminal is connected to the positive outlet terminal, and the negative inlet terminal is connected to the negative outlet terminal. When the circuit breaker 100 is in the open state, at least one of the positions between the positive inlet terminal and the positive outlet terminal and between the negative inlet terminal and the negative outlet terminal is disconnected.

In an embodiment of the present application, circuit breaker 100 may include a housing 110 with an inlet terminal 130 and an outlet terminal 120 disposed at opposite ends of housing 110. It is understood that the housing 110 may have a cubic shape, a cylindrical shape, a truncated shape, etc., and the inlet terminal 130 and the outlet terminal 120 may be respectively disposed at both ends of the housing 110 in the length direction.

as shown in fig. 3 and referring to fig. 1 and 2, in an embodiment of the present application, the power supply apparatus 200 may include an insertion frame 210, a power supply connection terminal 220 is disposed in the insertion frame 210, the housing 110 is configured to be inserted into the insertion frame 210, and an end of the housing 110, at which the incoming line terminal 130 is disposed, is configured to be inserted into the insertion frame 210. After the housing 110 is inserted into the assembly position in the insertion frame 210, the incoming terminal 130 is electrically connected to the power supply connection terminal 220 in the insertion frame 210, so that the incoming terminal 130 is electrically connected to the power supply device 200, and the end provided with the outgoing terminal 120 is located outside the insertion frame 210, so as to facilitate the electrical connection between the outgoing terminal 120 and the power receiving connection terminal of the power utilization circuit.

The mounting position refers to a position of the case 110 in the insertion frame 210 after the line terminal 130 of the circuit breaker 100 is electrically connected to the power supply connection terminal 220 of the power supply apparatus 200.

There may be two power supply connection terminals 220 disposed in the insertion frame 210, which are a positive power supply connection terminal and a negative power supply connection terminal, respectively, where the positive power supply connection terminal corresponds to the positive inlet wire terminal on the housing 110 in the assembly position for being electrically connected to the positive inlet wire terminal, and the negative power supply connection terminal corresponds to the negative inlet wire terminal on the housing 110 in the assembly position for being electrically connected to the negative inlet wire terminal.

The assembly of the circuit breaker 100 with the power supply apparatus 200 may be achieved by inserting the case 110 into the insertion frame 210, and the disassembly of the circuit breaker 100 from the power supply apparatus 200 may be achieved by pulling out the case 110 inserted into the insertion frame 210. The second direction may be a moving direction of the housing 110 when the housing is inserted into and removed from the insertion frame 210. In other words, the housing 110 may be inserted into or pulled out of the insertion frame 210 in the second direction. When the housing 110 is elongated, the second direction may be a longitudinal direction of the housing 110, and the first direction may be a width direction or a thickness direction of the housing 110.

In some related technologies, a mechanical switch for controlling the circuit breaker to switch between a closing state and an opening state is further disposed on a housing of the circuit breaker, the mechanical switch is located at one end of the housing where a wire outlet terminal is disposed, before the circuit breaker is assembled on a power supply device, the circuit breaker can be switched to the opening state through manual control of the mechanical switch, so that the circuit breaker is assembled with the power supply device when the circuit breaker is in the opening state, and after the circuit breaker is assembled on the power supply device, the circuit breaker is switched to the closing state through manual control of the mechanical switch, so that the power supply device is conducted with the wire outlet terminal of the circuit breaker. When the circuit breaker assembled on the power supply device needs to be detached, the circuit breaker can be switched to an opening state through manually controlling the mechanical switch, so that the circuit breaker can be detached from the power supply device when being in the opening state.

However, in the circuit breaker in the related art, the dismounting process of the circuit breaker and the power supply device requires manual operation for multiple times on the mechanical switch arranged on the housing, and the dismounting process is complicated. Before the circuit breaker and power supply unit dismouting, operating personnel forget easily and control mechanical switch in order to switch into the separating brake state with the circuit breaker, if carry out the combined floodgate state with power supply unit when the dismouting with the circuit breaker, the risk that the incident appears is great.

Fig. 4 is a schematic diagram of a circuit breaker provided in an embodiment of the present application when a housing is located at a socket of a plug frame, fig. 5 is a schematic diagram of a circuit breaker provided in an embodiment of the present application when the housing is located between the socket of the plug frame and an assembly position, and fig. 6 is a schematic diagram of a circuit breaker provided in an embodiment of the present application when the housing is located at the assembly position.

As shown in fig. 4 to 6 and referring to fig. 1, in the embodiment of the present application, the circuit breaker 100 is configured to be mounted on a power supply apparatus 200 having a plug frame 210, a housing 110 of the circuit breaker 100 includes a first housing wall 111 in a first direction, a switching-off rotating block 300 is disposed on the first housing wall 111, and the switching-off rotating block 300 is rotatably connected to the housing 110.

The power supply device 200 is used for assembling the circuit breaker 100, the power supply device 200 comprises an insertion frame 210 for inserting the housing 110, an accommodating groove 214 is arranged on a side wall 211 of the insertion frame 210, and the position of the accommodating groove 214 corresponds to the position of the opening rotating block 300 when the housing 110 is inserted into the assembling position in the insertion frame 210.

The opening rotary block 300 is configured to rotate towards the housing 110 when the housing 110 is inserted into the insertion frame 210, so as to switch the circuit breaker 100 in the closing state to the opening state, and rotate towards the receiving groove 214 on the sidewall 211 of the insertion frame 210 when the housing 110 is inserted into the assembly position in the insertion frame 210, so that a portion of the opening rotary block 300 is received in the receiving groove 214.

The insertion frame 210 is used to rotate the opening rotating block 300 of the circuit breaker 100 into the housing 110 when the housing 110 is inserted into the insertion frame 210.

The receiving groove 214 is used for providing a space for rotating the opening/closing rotating block 300 into the receiving groove 214 when the housing 110 is inserted into the assembling position in the inserting frame 210, so that a part of the opening/closing rotating block 300 is received in the receiving groove 214.

After the power supply device 200 and the circuit breaker 100 are assembled, the housing 110 of the circuit breaker 100 is inserted into the insertion frame 210 of the power supply device 200, and the opening rotating block 300 of the circuit breaker 100 is partially accommodated in the accommodating groove 214 of the power supply device 200.

The opening rotary block 300 is also used for rotating the housing 110 into the housing 110 to the outside of the receiving groove 214 when the housing 110 located at the assembling position is pulled out of the insertion frame 210, so as to switch the circuit breaker 100 in the closing state to the opening state.

The insertion frame 210 is also used for rotating the opening rotating block 300 into the housing 110 to the outside of the receiving groove 214 when the housing 110 in the assembling position is pulled out of the insertion frame 210.

Thus, when the housing 110 of the circuit breaker 100 is inserted into the insertion frame 210 of the power supply device 200 and pulled out from the insertion frame 210 having the receiving groove 214 at the assembling position, the opening rotating block 300 can be rotated to automatically switch the circuit breaker 100 to the opening state, so that the operation steps in the process of assembling and disassembling the circuit breaker 100 and the power supply device 200 can be reduced, and the assembling and disassembling process is simple. In addition, when the breaker 100 is detached, the breaker 100 in the closed state can be switched to the open state without manual operation, and the risk of safety accidents caused by detaching the breaker 100 in the closed state from the power supply apparatus 200 can be reduced.

It can be understood that the circuit breaker 100 further includes a switching-off and switching-on actuating mechanism 500, the switching-off and switching-on actuating mechanism 500 is disposed in the housing 110, and the switching-off and switching-on rotating block 300 is configured to trigger the switching-off and switching-on actuating mechanism 500 to perform an operation of switching the circuit breaker 100 in a switching-on state to a switching-off state when the switching-off and switching-on block rotates to a preset position in the housing 110. The preset position is a position where the opening rotating block 300 can trigger the circuit breaker 100 in the closing state to switch to the opening state.

It should be noted that one end of the plug frame 210 has a plug port 213 for inserting the housing 110, the plug frame 210 includes a bottom wall 212 and a side wall 211, the bottom wall 212 of the plug frame 210 is opposite to the plug port 213, one end of the side wall 211 of the plug frame 210 is used for enclosing the plug port 213 of the plug frame 210, and the other end of the side wall 211 of the plug frame 210 is fixedly connected to the bottom wall 212 of the plug frame 210.

It can be understood that the opening rotating block 300 may be partially disposed in the housing 110, or may be disposed outside the housing 110, and the opening rotating block 300 may be pressed by the inserting frame 210 or pressed by a triggering structure such as a top block disposed in the inserting frame 210 to rotate toward the housing 110.

For example, when the housing 110 is inserted into the plug frame 210, the opening rotating block 300 may be pressed by an edge of the plug interface 213 of the plug frame 210 to rotate toward the housing 110. When the housing 110 in the assembled position is pulled out of the insertion frame 210, the opening/closing rotation block 300 can be pressed by the edge of the receiving groove 214 and rotate towards the housing 110.

Illustratively, the left end of the plug frame 210 is provided with a plug port 213, the housing 110 can be inserted into the plug frame 210 from left to right, when the opening rotary block 300 moves to the plug port 213 of the plug frame 210, the portion of the opening rotary block 300 located outside the housing 110 is pressed by the edge of the plug port 213 to rotate clockwise, so as to transfer at least a portion of the opening rotary block 300 located outside the housing 110 into the housing 110, and the opening rotary block 300 rotating to a preset position in the housing 110 can trigger the circuit breaker 100 in the closing state to switch to the opening state. After the opening rotating block 300 moves to the receiving groove 214, the opening rotating block 300 is not pressed by the inserting frame 210 and rotates counterclockwise, so as to rotate the portion of the opening rotating block 300 into the receiving groove 214. When the housing 110 located at the assembling position is pulled out from the inserting frame 210, the housing 110 drives the opening rotating block 300 to move to the left, the portion of the opening rotating block 300 located in the housing 110 is pressed by the edge of the receiving groove 214 to rotate clockwise, so as to rotate the opening rotating block 300 out of the receiving groove 214, and at least a portion of the opening rotating block 300 located outside the housing 110 is rotated into the housing 110, and the opening rotating block 300 which rotates clockwise to the housing 110 to a preset position can trigger the circuit breaker 100 in the closing state to switch to the opening state.

It is understood that housing 110 further includes a second wall 112 oriented in a second direction, second wall 112 is adapted to be received within frame 210, and wire inlet terminal 130 may be disposed at second wall 112. When the housing 110 is inserted into the assembly position, the incoming line terminal 130 is electrically connected to the power supply connection terminal 220 in the insertion frame 210, and the circuit breaker 100 can be switched from the open state to the closed state. For example, a closing switch for controlling the circuit breaker 100 to switch from the open state to the closed state may be disposed on the housing 110, the closing switch may be in transmission connection with the opening and closing actuator 500, and after the housing 110 is inserted into the assembly position, the circuit breaker 100 may be switched from the open state to the closed state by controlling the closing switch.

Incoming line terminal 130 can include electrode grafting copper bar, insert power connection terminal 220 in the frame 210 can include the electrode copper bar inserted sheet that corresponds with electrode grafting copper bar, electrode copper bar inserted sheet fastening connection is on the diapire 212 of inserting the frame 210, electrode copper bar inserted sheet is used for rather than the butt joint of the electrode grafting copper bar that corresponds, casing 110 inserts and establishes behind the assembly position, electrode copper bar inserted sheet inserts in its corresponding electrode grafting copper bar to rather than the electrode grafting copper bar electricity that corresponds is connected.

The second housing wall 112 may further include signal terminals 118, a signal circuit board 230 corresponding to the signal terminals 118 may be further disposed in the insertion frame 210, the signal circuit board 230 is fastened to the bottom wall 212 of the insertion frame 210, the signal circuit board 230 is configured to be abutted against the corresponding signal terminals 118, and after the housing 110 is inserted into the assembly position, the signal circuit board 230 is electrically connected to the corresponding signal terminals 118.

The housing 110 includes a third wall 113 opposite to the second wall 112 in the second direction, the third wall 113 is configured to be disposed outside the insertion frame 210, the outlet terminal 120 may be disposed at the third wall 113, and after the housing 110 is inserted into the assembly position, the third wall 113 is located outside the insertion frame 210 so that the outlet terminal 120 is electrically connected to the power receiving connection terminal of the power consumption circuit.

It should be noted that the opening rotating block 300 may also be configured to rotate into the housing 110 to a preset position to enable the closing switch to be in a locked state, and when the closing switch is in the locked state, the circuit breaker 100 cannot be switched from the opening state to the closing state. Before the opening rotating block 300 rotates into the accommodating groove 214, the opening rotating block 300 which rotates to a preset position into the housing 110 can enable the closing switch to be in a locked state, after the opening rotating block 300 rotates into the accommodating groove 214, the opening rotating block 300 is partially accommodated in the accommodating groove 214, the closing switch can be unlocked, and after the closing switch is unlocked, the circuit breaker 100 can be switched from the opening state to the closing state through the closing switch.

In the embodiment of the present application, the length of the receiving groove 214 in the second direction may be greater than the length of the portion of the opening/closing rotation block 300 protruding out of the first housing wall 111 in the second direction. After the part of the opening rotating block 300 is rotated into the receiving slot 214, the housing 110 inserted into the inserting frame 210 is continuously inserted to drive the opening rotating block 300 to move in the receiving slot 214.

When housing 110 is inserted into the insertion frame 210 to the assembled position, the maximum distance from the wire terminal 130 to the power supply connection terminal 220 in the second direction to the second housing wall 112 is greater than the maximum distance from the groove wall of the accommodation groove 214 to the second housing wall 112 in the second direction.

Thus, when the housing 110 is inserted into the insertion frame 210, the inlet terminal 130 can be electrically contacted with the power supply connection terminal 220, and then the opening rotary block 300 can rotate into the receiving groove 214, so that the circuit breaker 100 can be in an opening state when the inlet terminal 130 is electrically contacted with the power supply connection terminal 220. When the housing 110 located at the assembling position is pulled out from the inserting frame 210, the opening rotating block 300 can be rotated towards the housing 110, so that the circuit breaker 100 is in the opening state, and then the housing 110 is pulled out continuously, so that the incoming line terminal 130 is separated from the power supply connecting terminal 220, and the circuit breaker 100 is in the opening state when the incoming line terminal 130 is separated from the power supply connecting terminal 220. In this way, the breaker 100 has less risk of safety accidents in the process of being detached from the power supply apparatus 200.

Illustratively, the opening rotary block 300 is horizontally disposed relative to a rotation axis of the housing 110, the opening rotary block 300 is rotatably connected to the housing 110 by an eccentric position thereof, the first housing wall 111 faces downward, and when the housing 110 is inserted into the assembly position, the opening rotary block 300 can rotate toward the receiving groove 214 by its own weight.

Fig. 7 is a schematic diagram of another view angle when the circuit breaker is in the opening state according to the embodiment of the present application.

As shown in fig. 7 and referring to fig. 1 and fig. 4 to 6, in the circuit breaker 100 according to the embodiment of the present application, the third casing wall 113 is provided with an outlet port 114, an outlet terminal 120 is disposed in the outlet port 114, the casing 110 is further provided with a communication hole (not shown) communicated with the outlet port 114, an axis of the communication hole is perpendicular to an axis of the outlet port 114 communicated with the communication hole, a locking bolt 115 is disposed in the communication hole, and the locking bolt 115 is used for locking and fixing the power receiving connection terminal inserted in the outlet port 114.

It is understood that the power receiving connection terminal is electrically contacted to the outlet terminal 120 after the power receiving connection terminal is locked and fixed in the outlet port 114 by the locking bolt 115.

Thus, after the power receiving connection terminal of the power utilization circuit is inserted into the outlet port 114 and electrically connected with the corresponding outlet terminal 120, the power receiving connection terminal can be locked and fixed in the outlet port 114 through the locking bolt 115, and the power receiving connection terminal is fixed stably. When the power receiving connection terminal needs to be pulled out from the outlet port 114, the locking of the power receiving connection terminal can be released by loosening the locking bolt 115, and the power receiving connection terminal is easy to detach.

It is understood that the housing 110 further comprises a fourth shell wall opposing the first shell wall 111 in a first direction and a fifth and a sixth shell wall opposing in a third direction, wherein the third direction is perpendicular to the first direction and the third direction is perpendicular to the second direction. The communication hole may be formed in any one of the first housing wall 111, the fourth housing wall, the fifth housing wall, and the sixth housing wall. Illustratively, the communication hole is opened in the fifth casing wall or the sixth casing wall. It should be noted that an internal thread may be provided on the hole wall of the communication hole, so that the locking bolt 115 inserted into the communication hole is screwed with the hole wall of the communication hole, and the outlet terminal 120 in the outlet interface 114 may be disposed opposite to the communication hole.

In the embodiment of the present application, the outlet terminal 120 includes a wire frame 121, the wire frame 121 is fastened to the housing 110, the wire frame 121 is opened with a threaded hole (not shown) opposite to the communicating hole, the threaded hole is a through hole, the locking bolt 115 is in threaded connection with a hole wall of the threaded hole opposite to the communicating hole where the locking bolt 115 is located, and the locking bolt 115 is used to lock and fix the power receiving connection terminal inserted in the wire frame 121 on the wire frame 121.

Thus, after the power receiving connection terminal is locked and fixed by the locking bolt 115, the power receiving connection terminal is stably electrically connected with the wire frame 121 and is not easy to shift. In addition, the connection frame 121 is firmly connected to the housing 110.

It is understood that the wire frame 121 is made of conductive material, and the power receiving connection terminal is locked and fixed on the wire frame 121 by the locking bolt 115, and then electrically contacted with the outlet terminal 120.

Fig. 8 is an internal schematic view of a circuit breaker provided in an embodiment of the present application when the circuit breaker is in a closing state, and fig. 9 is an internal schematic view of a circuit breaker provided in an embodiment of the present application when the circuit breaker is in an opening state.

As shown in fig. 8 and 9, and referring to fig. 4 to 6, in the circuit breaker 100 according to the embodiment of the present invention, a first spring 310 is disposed between the opening rotary block 300 and the housing 110, and when the opening rotary block 300 rotates towards the housing 110, the first spring 310 is switched from a first initial state to a first power storage state. Wherein, the acting force applied to the brake rotor 300 when the first spring 310 is in the first power storage state is greater than the acting force applied to the brake rotor 300 when the first spring 310 is in the first initial state.

It should be noted that when the opening rotating block 300 moves to the receiving slot 214, the first spring 310 in the first power storage state can rotate the opening rotating block 300 into the receiving slot 214, so that a portion of the opening rotating block 300 rotates into the receiving slot 214. Therefore, the opening rotating block 300 can at least partially extend out of the shell 110 when not pressed, so that the opening rotating block 300 can be pressed to rotate towards the shell 110 when the shell 110 is inserted into or pulled out of the insertion frame 210. In addition, the restriction on the installation position of the opening rotary block 300 can be reduced, and the first side wall 211 on which the opening rotary block 300 is installed can be directed upward or the like.

It is understood that the first spring 310 may be a spring having various forms, such as a column spring, a torsion spring, a disc spring, etc. The first spring 310 may be a tension spring or a compression spring, and the first accumulated force state may be a state in which the first spring 310 is compressed to generate an elastic force or a state in which the first spring 310 is extended to generate an elastic force.

Illustratively, the first spring 310 is a torsion spring, and the first power storage state is a state in which the first spring 310 is compressed to generate an elastic force. When the opening rotary block 300 rotates clockwise towards the housing 110, the first spring 310 is pressed tightly, after the opening rotary block 300 rotates to a preset position in the housing 110, the first spring 310 is switched to a first power accumulation state, and when the opening rotary block 300 rotates anticlockwise towards the outside of the housing 110 under the action of the first spring 310, the first spring 310 is switched to a first initial state, so that the opening rotary block 300 restores to a position before being pressed.

In the circuit breaker 100 provided by the embodiment of the present application, the opening rotating block 300 includes a pressed portion 320 located outside the housing 110, and the pressed portion 320 includes a first inclined surface 321 and a second inclined surface 322. The first inclined surface 321 is used for being pressed by the sidewall 211 of the insertion frame 210 when the housing 110 is inserted into the insertion frame 210, so that the opening rotating block 300 rotates towards the housing 110. The second inclined plane 322 is used for pressing against the sidewall 211 of the insertion frame 210 when the housing 110 located at the assembling position is pulled out from the insertion frame 210, so that the opening rotating block 300 rotates towards the housing 110. The rotation direction of the opening rotating block 300 when the first inclined surface 321 is pressed by the side wall 211 of the inserting frame 210 is the same as the rotation direction of the opening rotating block 300 when the second inclined surface 322 is pressed by the side wall 211 of the inserting frame 210.

In this way, when the case 110 is inserted into the insertion frame 210 and removed from the mounting position, the rotation direction of the opening rotary block 300 is the same, so that the complexity of the structure for switching the circuit breaker 100 in the closed state to the opened state in the case 110 can be reduced, and when the case 110 is inserted into the insertion frame 210 and removed from the mounting position, the opening rotary block 300 can trigger the structure in the same position to switch the circuit breaker 100 in the closed state to the opened state. In addition, the first inclined surface 321 and the second inclined surface 322 can also reduce the risk of the locking of the opening rotating block 300 and the inserting frame 210, so that the opening rotating block 300 can rotate more smoothly.

It should be noted that the ends of the first inclined surface 321 and the second inclined surface 322, which are close to each other, may intersect through a fillet, a chamfer, a sharp corner or a plane. Illustratively, the ends of the first inclined surface 321 and the second inclined surface 322, which are close to each other, intersect through a rounded corner, so that the opening rotating block 300 rotates more smoothly when being pressed.

In the circuit breaker 100 provided by the embodiment of the present application, the opening rotating block 300 is rotatably connected with the housing 110 in the housing 110, the first through opening 116 for rotating the opening rotating block 300 is provided on the first housing wall 111, and the opening rotating block 300 is disposed in the first through opening 116.

It can be understood that the opening rotary block 300 is partially located in the housing 110, partially passes through the housing 110 through the first through hole 116 and is located outside the housing 110, and the portion of the opening rotary block 300 located outside the housing 110 can be rotated into the housing 110 through the first through hole 116.

Therefore, the structure arranged outside the shell 110 can be reduced, when the opening rotating block 300 is pressed by the inserting frame 210, the part of the opening rotating block 300 outside the shell 110 can be rotated into the shell 110, the arrangement of the space avoiding structure for moving the structure arranged outside the shell 110 on the inserting frame 210 can be reduced, and the insertion and the extraction of the shell 110 in the inserting frame 210 can be facilitated.

In the circuit breaker 100 provided in the embodiment of the present application, the opening rotary block 300 includes a limiting portion 330 located in the housing 110, and the limiting portion 330 is used for abutting against the first housing wall 111 to limit a position where the opening rotary block 300 rotates.

Thus, the position of the opening rotating block 300 rotating out of the shell 110 can be controlled, and the risk that the opening rotating block 300 rotates outwards of the shell 110 excessively is reduced. The spacing portion 330 cooperates with the first spring 310 to control the position of the opening rotating block 300 when the opening rotating block is not pressed by the inserting frame 210, thereby facilitating the control of the angle of the surface of the opening rotating block 300 pressed against the inserting frame 210 and the rotation of the opening rotating block 300.

In some examples, the spacing portion 330 and the compression portion 320 may be a unitary structure.

In the circuit breaker 100 provided in the embodiment of the present application, the housing 110 is further provided with a push block mechanism 400. The push block mechanism 400 is configured to be pressed by the insertion frame 210 to operate when the housing 110 is inserted into the insertion frame 210, so that the circuit breaker 100 is switched from the open state to the closed state when the housing 110 is inserted into the assembly position.

In this way, after the housing 110 is inserted into the assembly position, manual operation is not required, the circuit breaker 100 can be automatically switched from the open-circuit state to the closed-circuit state through the push block mechanism 400, the operation steps in the assembly process of the circuit breaker 100 and the power supply device 200 can be reduced, and the assembly process is simple.

It can be understood that the push block mechanism 400 can be used as a closing switch for switching the circuit breaker 100 from the open state to the closed state, the push block mechanism 400 can be in transmission connection with the opening and closing actuator 500, and the push block mechanism 400, which is pressed by the insertion frame 210 to act, can drive the opening and closing actuator 500 to perform an action of switching the circuit breaker 100 from the open state to the closed state.

It should be noted that the push block mechanism 400 may be disposed on the second housing wall 112, or may be disposed on the first housing wall 111, the fourth housing wall, the fifth housing wall, or the sixth housing wall, and if the push block mechanism 400 is disposed on the first housing wall 111, the fourth housing wall, the fifth housing wall, or the sixth housing wall, the push block mechanism 400 is configured to be pressed by the side wall 211 of the plug frame 210 to operate when the housing 110 is inserted into the plug frame 210.

In the circuit breaker 100 provided by the embodiment of the application, the push block mechanism 400 is disposed on the second housing wall 112, and the push block mechanism 400 is configured to be pressed by the bottom wall 212 of the insertion frame 210 to operate when the housing 110 is inserted into the insertion frame 210.

Thus, the push block mechanism 400 is stably pressed by the insertion frame 210, and the reliability of switching the circuit breaker 100 from the open state to the closed state is high after the housing 110 is inserted into the device position in the insertion frame 210.

As shown in fig. 2, in an example where the signal terminals 118 are provided, the signal terminals 118 may be provided at intervals from the push block mechanism 400 in the third direction.

As shown in fig. 8 and 9, in the circuit breaker 100 according to the embodiment of the present invention, when the circuit breaker 100 is in the closed state, the push block mechanism 400 is located on the rotation path of the opening rotary block 300. When the circuit breaker 100 is in a closed state, the push block mechanism 400 is further configured to be pressed by the opening rotating block 300 rotating in the housing 110 to operate, so as to switch the circuit breaker 100 in the closed state to an open state.

Thus, the opening rotating block 300 rotating to the preset position in the housing 110 can switch the circuit breaker 100 in the closing state to the opening state through the push block mechanism 400, which is beneficial to improving the cooperativity between the opening rotating block 300 and the push block mechanism 400 and can reduce the risk of conflict between the opening rotating block 300 and the push block mechanism 400. In addition, the transmission structure in the housing 110 can be simplified, and the switching between the open state and the closed state of the circuit breaker 100 can be facilitated.

In the circuit breaker 100 provided in the embodiment of the present application, the push block mechanism 400 includes a closing push block 410. The closing push block 410 includes a sliding portion 411 and a opening contact portion 412, the sliding portion 411 is slidably engaged with the housing 110, the sliding portion 411 is slidable relative to the housing 110 along the second direction, and the sliding portion 411 is configured to slide under the pressing of the insertion frame 210 when the housing 110 is inserted into the insertion frame 210, so as to switch the circuit breaker 100 from the opening state to the closing state when the housing 110 is inserted into the assembly position. The opening contact portion 412 is tightly connected to the sliding portion 411 in the housing 110, and when the circuit breaker 100 is in a closed state, the opening contact portion 412 is located on a rotation path of the opening rotary block 300. When the circuit breaker 100 is in the closed state, the opening contact portion 412 is pressed by the opening block 300 rotating in the housing 110 to slide the sliding portion 411, so as to switch the circuit breaker 100 in the closed state to the open state.

Thus, the sliding portion 411 can slide with respect to the housing 110, and the sliding portion 411 that slides by being pressed by the insertion frame 210 can trigger the circuit breaker 100 to switch from the open state to the closed state. The sliding part 411 can slide under the driving of the opening touching part 412 pressed by the opening rotating block 300 to trigger the circuit breaker 100 in the closing state to switch to the opening state, the structure of the push block mechanism 400 is simple, the sliding part 411 acts stably, and the reliability of switching the circuit breaker 100 between the opening state and the closing state is high.

It is understood that the sliding portion 411 may be drivingly connected to the opening/closing actuator 500. The sliding portion 411, which slides under the pressing of the insertion frame 210, can drive the switching actuator 500 to switch the circuit breaker 100 from the open state to the closed state. The sliding portion 411, which slides under the driving of the opening/closing pressing portion 412 pressed by the opening/closing rotation block 300, can drive the opening/closing actuator 500 to switch the circuit breaker 100 in the closed state to the open state.

The sliding part 411 and the opening pressing part 412 may be an integral structure.

In some examples, the opening and closing rotation block 300 includes an opening and closing triggering part 340 located in the housing 110, and the opening and closing pressing part 412 is located on a rotation path of the opening and closing triggering part 340. When the circuit breaker 100 is in a closed state, the opening contact portion 412 is pressed by the opening trigger portion 340 of the opening block 300 rotating in the housing 110 to slide the sliding portion 411.

It should be noted that the opening triggering portion 340 may be a block structure, a pressing protrusion may be disposed at a position where the opening triggering portion 340 is used for pressing the opening pressing portion 412, and the opening triggering portion 340 may press the opening pressing portion 412 through the pressing protrusion.

In some examples, the opening triggering part 340 is spaced apart from the limiting part 330. Thus, the weight of the opening rotating block 300 is reduced.

In the circuit breaker 100 according to the embodiment of the present application, the second through hole 117 is formed in the second casing wall 112 located in the second direction of the casing 110 and used for being accommodated in the insertion frame 210, and the sliding portion 411 is inserted into the second through hole 117. The sliding portion 411 is used to slide into the housing 110 by being pressed by the bottom wall 212 of the insertion frame 210 when the housing 110 is inserted into the insertion frame 210. When the circuit breaker 100 is in a closed state, the opening touch part 412 is pressed by the opening rotating block 300 rotating towards the housing 110 to drive the sliding part 411 to slide towards the outside of the housing 110.

As described above, in the process of inserting the housing 110 into the insertion frame 210, the sliding portion 411 is stably pressed by the insertion frame 210, and after the housing 110 is inserted into the device position in the insertion frame 210, the reliability of switching the circuit breaker 100 from the open state to the closed state is high.

It is understood that, after the housing 110 is inserted into the assembly position in the insertion frame 210, the sliding portion 411 may be completely slid into the housing 110 or partially positioned outside the housing 110.

As shown in fig. 8 and 9, for example, when the housing 110 is inserted into the insertion frame 210 from left to right, the portion of the sliding portion 411 protruding from the second housing wall 112 is pressed by the bottom wall 212 of the insertion frame 210, so that the sliding portion 411 moves to the left, and the opening and closing actuator 500 is driven to perform an operation of switching the circuit breaker 100 from the opening state to the closing state. When the circuit breaker 100 is in a closed state, the clockwise rotating opening and closing rotating block 300 can press the opening and closing touch part 412, so that the opening and closing touch part 412 drives the sliding part 411 to move rightwards, and the opening and closing actuating mechanism 500 is driven to execute an action of switching the circuit breaker 100 in the closed state into the open state.

In the circuit breaker 100 provided by the embodiment of the application, in the first direction, the opening contact portion 412 is located between the sliding portion 411 and the first housing wall 111. The opening/closing pressing part 412 is also used to abut against the second housing wall 112 to limit the sliding position of the sliding part 411.

In this way, the risk that the closing push block 410 is released from the housing 110 can be reduced. In addition, the path that the opening rotating block 300 can collide with the opening pressing part 412 can be also extended, which is beneficial to increasing the moving path of the opening pressing part 412 pressed by the opening rotating block 300.

As shown in fig. 8 and 9, in the circuit breaker 100 according to the embodiment of the present application, the switching actuator 500 includes a rotating component 510, a movable contact 520, and a fixed contact 530, the rotating component 510 is rotatably connected to the housing 110, the movable contact 520 is fixedly connected to the rotating component 510, the rotating component 510 can drive the movable contact 520 to rotate, the fixed contact 530 is fixedly connected to the housing 110, and the fixed contact 530 is located on a rotation path of the movable contact 520.

It will be appreciated that one of movable contact 520 and stationary contact 530 is electrically connected to inlet terminal 130 and the other of movable contact 520 and stationary contact 530 is electrically connected to outlet terminal 120, and that by electrically contacting movable contact 520 and stationary contact 530, continuity of the circuit between outlet terminal 120 and inlet terminal 130 is achieved, thereby placing circuit breaker 100 in a closed state. By separating moving contact 520 and stationary contact 530, the circuit between outlet terminal 120 and inlet terminal 130 is broken, leaving circuit breaker 100 in the open state.

For example, the moving contact 520 may be electrically connected to the positive inlet terminal, and the stationary contact 530 may be electrically connected to the positive outlet terminal; alternatively, the movable contact 520 may be electrically connected to the negative inlet terminal, and the stationary contact 530 may be electrically connected to the negative outlet terminal; alternatively, the movable contact 520 may be electrically connected to the positive outlet terminal, and the stationary contact 530 may be electrically connected to the positive inlet terminal; alternatively, movable contact 520 may be electrically connected to the negative outlet terminal and stationary contact 530 may be electrically connected to the negative inlet terminal.

In the circuit breaker 100 provided in the embodiment of the present application, the push block mechanism 400 further includes a first link 420, a control rotating block 430, and a second link 440, and the control rotating block 430 is rotatably connected to the housing 110. The first link 420 includes opposite first and second hinge ends 421 and 422, the first hinge end 421 is hinged to an edge of the rotating assembly 510, and the second hinge end 422 is hinged to an edge of the control rotating block 430. The second link 440 includes opposite third and fourth hinge ends 441 and 442, the third hinge end 441 is hinged to an edge of the control rotating block 430, and the fourth hinge end 442 is hinged to the sliding portion 411. When the housing 110 is inserted into the insertion frame 210 and the sliding portion 411 is pressed by the insertion frame 210 to slide, the sliding portion 411 drives the movable contact 520 to rotate towards the direction close to the stationary contact 530 through the second link 440, the control rotating block 430, the first link 420 and the rotating assembly 510, so that when the housing 110 is inserted into the assembly position, the movable contact 520 contacts with the stationary contact 530, and the switching from the opening state to the closing state of the circuit breaker 100 is realized. When the sliding portion 411 slides due to the pressing of the opening rotating block 300 rotating towards the housing 110, the sliding portion 411 drives the movable contact 520 to rotate towards the direction away from the stationary contact 530 through the second link 440, the control rotating block 430, the first link 420 and the rotating component 510, so that the movable contact 520 is separated from the stationary contact 530, and the switching of the circuit breaker 100 from the closing state to the opening state is realized.

In this way, the sliding portion 411 can rotate the movable contact 520 through the second link 440, the control rotating block 430, the second link 440 and the rotating assembly 510, and the circuit breaker 100 can be controlled to switch between the closing state and the opening state through the sliding of the sliding portion 411.

For example, when the sliding portion 411 slides to the left, the second link 440 may drive the control rotating block 430 to rotate counterclockwise, and the control rotating block 430 may drive the rotating assembly 510 and the movable contact 520 thereon to rotate clockwise through the first link 420, so that the movable contact 520 is close to the stationary contact 530.

When the opening touch-pressing part 412 is pressed by the opening rotating block 300 and moves to the right, the sliding part 411 can be driven to slide to the right, the sliding part 411 sliding to the right can drive the control rotating block 430 to rotate clockwise through the second connecting rod 440, and the control rotating block 430 can drive the rotating assembly 510 and the movable contact 520 thereon to rotate counterclockwise through the first connecting rod 420, so that the movable contact 520 is far away from the stationary contact 530.

As shown in fig. 8 and 9, in the circuit breaker 100 according to the embodiment of the present invention, the second spring 460 is disposed between the control rotating block 430 and the casing 110, and when the casing 110 is inserted into the insertion frame 210, the sliding portion 411 is pressed by the insertion frame 210 to drive the control rotating block 430 to rotate, the second spring 460 is switched from the second initial state to the second power storage state. Wherein the force applied to the control rotor 430 by the second spring 460 in the second power state is greater than the force applied to the control rotor 430 by the second spring 460 in the second initial state.

In this way, the second spring 460 in the second power storage state can provide an urging force to the sliding portion 411 to restore the sliding portion 411 to the position before being pressed, which is beneficial to moving the sliding portion 411 to the position where the sliding portion can be pressed by the insertion frame 210 when the circuit breaker 100 is triggered by the opening rotating block 300 and is switched from the closing state to the opening state. In addition, the second spring 460 in the second power state may also provide a force to the movable contact 520 to separate the movable contact from the stationary contact 530, which facilitates switching the circuit breaker 100 from the closed state to the open state. The requirement for the moving distance of the opening contact part 412 pressed by the opening rotating block 300 when the circuit breaker 100 in the closing state is switched to the opening state can be reduced, and the reliability of switching the circuit breaker 100 in the closing state to the opening state by the opening rotating block 300 rotating towards the shell 110 can be improved.

It is understood that the second spring 460 may be a spring with various forms, such as a column spring, a torsion spring, a disc spring, etc. The second spring 460 may be a tension spring or a compression spring, and the second stored force state may be a state in which the second spring 460 is compressed to generate an elastic force or a state in which the second spring 460 is extended to generate an elastic force.

Illustratively, the second spring 460 is a torsion spring, and the second power state is a state in which the second spring 460 is compressed to generate an elastic force. When the control rotation block 430 rotates counterclockwise, the second spring 460 is pressed, and after the control rotation block 430 rotates to a position where the movable contact 520 and the stationary contact 530 are in electrical contact, the second spring 460 is switched to the second power accumulation state, and when the control rotation block 430 rotates clockwise under the action of the second spring 460, and the sliding portion 411 slides and returns to the position before being pressed, the second spring 460 is switched to the second initial state.

In the circuit breaker 100 according to the embodiment of the present application, the third spring 540 is disposed between the rotating assembly 510 and the housing 110, and when the rotating assembly 510 rotates toward the moving contact 520 toward the stationary contact 530, the third spring 540 is switched from the third initial state to the third stored-force state. Wherein the force applied to rotating assembly 510 by third spring 540 in the third stored force state is greater than the force applied to rotating assembly 510 by third spring 540 in the third initial state.

In this way, the third spring 540 in the third power accumulation state may provide a force to the movable contact 520 to separate from the stationary contact 530, which facilitates switching the circuit breaker 100 from the closing state to the opening state.

It is understood that the third spring 540 may be a spring having various forms such as a column spring, a torsion spring, a disc spring, and the like. The third spring 540 may be a tension spring or a compression spring, and the third power storage state may be a state in which the third spring 540 is compressed to generate an elastic force or a state in which the third spring 540 is extended to generate an elastic force.

Illustratively, the third spring 540 is a column spring, and the third power storage state is a state in which the third spring 540 is stretched to generate an elastic force. When the rotating assembly 510 drives the moving contact 520 to rotate clockwise, the third spring 540 is stretched, after the rotating assembly 510 rotates to a position where the moving contact 520 is in electrical contact with the fixed contact 530, the third spring 540 is switched to a third power accumulation state, and when the rotating assembly 510 drives the moving contact 520 to return to a position where the moving contact 520 is separated from the fixed contact 530, the third spring 540 is switched to a third initial state by rotating the rotating assembly 510 counterclockwise.

In the circuit breaker 100 provided in the embodiment of the present application, the second hinge end 422 and the third hinge end 441 are disposed at intervals along the edge of the control rotating block 430, and when the moving contact 520 contacts the fixed contact 530, the second hinge end 422 and the third hinge end 441 are respectively located at two sides of the self-locking plane 450, so that the control rotating block 430 is switched to the self-locking state. The self-locking plane 450 is a plane in which a rotation axis of the first hinged end 421 rotates relative to the rotating assembly 510 and a rotation axis of the control rotating block 430 rotates relative to the housing 110.

It can be understood that, when the control rotation block 430 is in the self-locking state, the acting force applied to the control rotation block 430 by the third spring 540 through the rotation assembly 510 and the first link 420 is offset from the acting force applied to the control rotation block 430 by the second spring 460, and at this time, if no external force is applied to drive the control rotation block 430, the control rotation block 430 does not rotate relative to the housing 110.

Thus, the control rotating block 430 does not rotate by itself after being in the self-locking state, which is beneficial to keeping the circuit breaker 100 in the closing state. The opening rotating block 300 rotating towards the housing 110 presses against the opening pressing portion 412, so that the opening pressing portion 412 drives the control rotating block 430 to rotate to enable the control rotating block 430 to release the self-locking state, the control rotating block 430 can rotate under the action of the second spring 460, so that the sliding portion 411 slides out, and the rotating assembly 510 can rotate under the action of the third spring 540, so as to separate the moving contact 520 from the stationary contact 530.

It can be understood that the rotation block 430 is controlled to release the self-locking state after the second hinge end 422 and the third hinge end 441 are located at the same side of the self-locking plane 450.

Illustratively, when the movable contact 520 contacts the fixed contact 530, the second hinge end 422 and the third hinge end 441 are respectively located at two sides of the self-locking plane 450, the second spring 460 applies a force to the control rotating block 430 to rotate the control rotating block 430 clockwise, and the third spring 540 applies a force to the control rotating block 430 through the first link 420 to rotate the control rotating block 430 counterclockwise, so that the control rotating block 430 is switched to the self-locking state. After the second hinge end 422 and the third hinge end 441 are located at the same side of the self-locking plane 450, the second spring 460 applies a force to the control rotation block 430 to rotate the control rotation block 430 clockwise, and the third spring 540 applies a force to the control rotation block 430 through the first link 420 to rotate the control rotation block 430 clockwise, so that the control rotation block 430 is released from the self-locking state.

In the circuit breaker 100 provided by the embodiment of the present application, the circuit breaker 100 further includes a protection mechanism 600. The protection mechanism 600 is in transmission connection with the rotating assembly 510, and when the current in the circuit breaker 100 exceeds a preset value, the protection mechanism 600 is used for enabling the rotating assembly 510 to drive the movable contact 520 to rotate towards a direction far away from the fixed contact 530, so that the movable contact 520 is separated from the fixed contact 530.

Therefore, when the current in the circuit breaker 100 exceeds a preset value, the circuit breaker 100 can be switched to the opening state, and the protection of the power utilization circuit connected with the circuit breaker 100 and the power supply device 200 is facilitated.

In the circuit breaker 100 provided in the embodiment of the present application, the rotating assembly 510 includes a rotating arm 511, a locking rotating block 512, a releasing rotating block 513, and a fourth spring 514. The rotating arm 511 and the tripping rotating block 513 are both rotatably connected with the housing 110, a rotating shaft of the rotating arm 511 rotating relative to the housing 110 is coaxial with a rotating shaft of the tripping rotating block 513 rotating relative to the housing 110, a moving contact 520 is arranged at one end of the rotating arm 511, the other end of the rotating arm 511 is hinged with one end of the locking rotating block 512, and the other end of the locking rotating block 512 is buckled with the tripping rotating block 513.

It can be understood that a locking protrusion may be disposed at one end of the locking rotating block 512 for connecting with the releasing rotating block 513, a groove may be disposed at one end of the releasing rotating block 513 for connecting with the locking rotating block 512, the locking protrusion is locked into the groove, and the locking rotating block 512 and the releasing rotating block 513 are locked together by the locking protrusion and the groove.

In the circuit breaker 100 provided by the embodiment of the present application, the fourth spring 514 is disposed between the trip rotating block 513 and the rotating arm 511, and the fourth spring 514 compresses the latch rotating block 512 to be fixed on the rotating arm 511.

It is understood that the fourth spring 514 may be a spring with various forms such as a column spring, a torsion spring, a disc spring, etc. The fourth spring 514 may be a tension spring or a compression spring. The fourth spring 514, which presses the latch rotor 512 against the rotating arm 511, may be in a compressed state or in a stretched state.

Illustratively, the fourth spring 514 is a torsion spring, and the fourth spring 514 applies a force to the trip rotating block 513 to enable the trip rotating block 513 to rotate clockwise relative to the rotating arm 511, so as to press and fix the locking rotating block 512 onto the rotating arm 511 through the trip rotating block 513.

In the circuit breaker 100 provided in the embodiment of the present application, the third spring 540 is disposed between the rotating arm 511 and the housing 110, and the first hinge end 421 is hinged to the latch rotating block 512. The first hinge end 421 is located between the hinge position of the locking rotary block 512 and the rotary arm 511 and the fastening position of the locking rotary block 512 and the releasing rotary block 513.

In the circuit breaker 100 provided in the embodiment of the present application, the protection mechanism 600 is in transmission connection with the edge of the trip rotating block 513, and the protection mechanism 600 is configured to drive the trip rotating block 513 to rotate towards the direction away from the latch rotating block 512 when the current flowing through the circuit breaker 100 exceeds the preset value, so that the trip rotating block 513 is tripped from the latch rotating block 512. After the trip rotating block 513 is tripped from the lock rotating block 512, the lock rotating block 512 is used to drive the first hinged end 421 to rotate relative to the rotating arm 511 to a position where the second hinged end 422 and the third hinged end 441 are located on the same side of the self-locking plane 450, so as to separate the movable contact 520 from the stationary contact 530 under the action of the third spring 540.

Therefore, when the current flowing through the circuit breaker 100 exceeds a preset value, the control rotating block 430 is enabled to release the self-locking state, the circuit breaker 100 in the closing state is switched to the opening state, and the protection of the power utilization circuit connected with the circuit breaker 100 and the power supply device 200 is facilitated.

It is understood that when the rotating arm 511 rotates the moving contact 520 toward the direction close to the fixed contact 530, the releasing rotating block 513 can rotate under the driving of the locking rotating block 512, and the releasing rotating block 513 cannot be released from the locking rotating block 512. Specifically, when the rotating arm 511 drives the moving contact 520 to rotate toward the direction close to the fixed contact 530, the locking protrusion may abut against the sidewall 211 of the groove to drive the releasing rotating block 513 to rotate. When the releasing rotary block 513 rotates away from the locking rotary block 512, the locking protrusion can rotate out of the notch of the groove, so that the releasing rotary block 513 is released from the locking rotary block 512.

For example, when the current flowing through the circuit breaker 100 exceeds a preset value, the protection mechanism 600 drives the trip rotating block 513 to rotate counterclockwise, so that the latch protrusion is disengaged from the groove. After the releasing rotary block 513 is released from the locking rotary block 512, the locking rotary block 512 can rotate clockwise relative to the rotary arm 511, so that the second hinged end 422 and the third hinged end 441 are located at the same side of the self-locking plane 450, the rotary block 430 is controlled to release the self-locking state, and the movable contact 520 can be separated from the fixed contact 530 under the driving of the third spring 540.

In the circuit breaker 100 provided by the embodiment of the present application, the protection mechanism 600 includes a first protection component 610 in transmission connection with the trip rotating block 513. The first protection member 610 includes a thermo-deformable sheet 611 and a third link 612.

The heat sensitive deformation piece 611 may be disposed between the inlet terminal 130 or the outlet terminal 120 to which the movable contact 520 is connected, or the heat sensitive deformation piece 611 may be disposed between the inlet terminal 130 or the outlet terminal 120 to which the stationary contact 530 is connected.

The thermo-deformable sheet 611 may be made of a material that can be bent by heat. Illustratively, the thermo-deformable sheet 611 may be made of a shape memory alloy. The shape memory alloy is a material composed of two or more metal elements having a shape memory effect by thermoelastic and martensitic transformation and inversion thereof. The structural member made of the shape memory alloy may be embodied as: after plastic deformation occurs in a certain temperature range, the original shape can be recovered in another temperature range. For example, a curved structural member made of a shape memory alloy will maintain or substantially maintain a straight configuration after being straightened at ambient or lower temperatures. When the structural member is heated to a certain temperature, the structural member can automatically return to the original curve shape. In addition, the thermo-deformable sheet 611 may also be made of a bimetal. Bimetallic strip is a composite material composed of two or more metals or other materials having suitable properties. The bimetallic strip is also called as a thermal bimetallic strip, and because the thermal expansion coefficients of all component layers are different, when the temperature changes, the deformation of the active layer is larger than that of the passive layer, so that the whole bimetallic strip is bent towards one side of the passive layer.

The thermal deformation sheet 611 is connected with the trip rotating block 513 through a third connecting rod 612, a sliding slot 515 is arranged on the trip rotating block 513, one end of the third connecting rod 612 is hinged to the thermal deformation sheet 611, the other end of the third connecting rod 612 is arranged in the sliding slot 515 and can slide in the sliding slot 515, and in order to reduce the risk that the third connecting rod 612 is disengaged from the sliding slot 515, one end of the third connecting rod 612 arranged in the sliding slot 515 can be in a hook shape. When the current at the thermal deformation piece 611 exceeds a preset value, the temperature at the thermal deformation piece 611 is high, the thermal deformation piece 611 deforms, and the third connecting rod 612 can drive the release rotating block 513 to rotate in a direction away from the locking rotating block 512 to release from the locking rotating block 512.

In the circuit breaker 100 provided by the embodiment of the present application, the protection mechanism 600 includes a second protection component 620 in transmission connection with the trip block 513. The second protection assembly 620 includes an electromagnet 621 and an armature 622, the electromagnet 621 being wound with a coil.

A coil may be disposed between inlet terminal 130 or outlet terminal 120 to which movable contact 520 is connected, or between inlet terminal 130 or outlet terminal 120 to which stationary contact 530 is connected.

The electromagnet 621 is tightly connected to the housing 110, one end of the armature 622 is rotatably connected to the housing 110, the other end is attracted by the electromagnet 621 to swing, a fifth spring 623 may be disposed between the armature 622 and the housing 110, and when the armature 622 is attracted by the electromagnet 621 to swing in a direction approaching the electromagnet 621, the fifth spring 623 is switched from a fifth initial state to a fifth power storage state. The acting force applied to the armature 622 when the fifth spring 623 is in the fifth power storage state is larger than the acting force applied to the brake rotor 300 when the fifth spring 623 is in the fifth initial state. It is understood that the fifth spring 623 may be a spring having various forms, such as a column spring, a torsion spring, and a disc spring.

The edge of the trip rotating block 513 is provided with a trip protrusion 516, and when the circuit breaker 100 is in a closing state, the trip rotating block 513 is located on a path of the armature 622 rotating towards the electromagnet. The armature 622 is attracted by the electromagnet 621 to swing when the current in the coil exceeds a preset value, so as to push the trip protrusion 516, and the trip rotating block 513 rotates away from the latch rotating block 512 to be tripped from the latch rotating block 512.

It is understood that, in order to reduce the mutual interference between the first protection component 610 and the second protection component 620, the first protection component 610 and the second protection component 620 may be respectively disposed at two sides of the trip rotating block 513. The heat sensitive deformation piece 611 may be disposed between the movable contact 520 and the inlet terminal 130 or the outlet terminal 120 connected thereto, and the coil may be disposed between the fixed contact 530 and the inlet terminal 130 or the outlet terminal 120 connected thereto. Alternatively, the coil may be disposed between the movable contact 520 and the inlet terminal 130 or the outlet terminal 120 connected thereto, and the heat sensitive deformation piece 611 may be disposed between the fixed contact 530 and the inlet terminal 130 or the outlet terminal 120 connected thereto.

In the circuit breaker 100 according to the embodiment of the present application, the arc extinguishing mechanism 700 is further disposed in the housing 110, the arc extinguishing mechanism 700 is disposed near a path where the movable contact 520 rotates toward the stationary contact 530, and the arc extinguishing mechanism 700 can extinguish an arc generated between the movable contact 520 and the stationary contact 530. In this way, the safety of the circuit breaker 100 switching between the open state and the closed state can be improved.

Illustratively, the arc extinguishing mechanism 700 is disposed near the third housing wall 113, and the third housing wall 113 further has an arc extinguishing hole 119.

In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the embodiments of the application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the embodiments of the present application, and are not limited thereto; although the embodiments of the present application have been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A circuit breaker, for fitting to a power supply device having an insertion frame;

the circuit breaker comprises a shell, wherein the shell is used for being inserted into the inserting frame;

the shell comprises a first shell wall in a first direction, the first shell wall is provided with a brake-separating rotating block, and the brake-separating rotating block is rotatably connected with the shell;

the switching-off rotating block is used for rotating towards the shell when the shell is inserted into the inserting frame so as to switch the circuit breaker in a switching-on state into a switching-off state, and rotating towards the accommodating groove on the side wall of the inserting frame when the shell is inserted into an assembling position in the inserting frame so as to enable part of the switching-off rotating block to be accommodated in the accommodating groove;

the opening rotating block is also used for rotating the shell in the assembly position to the outside of the accommodating groove when the shell in the assembly position is pulled out of the inserting frame so as to switch the circuit breaker in the closing state into the opening state;

the shell is inserted into or pulled out of the inserting frame along a second direction, and the first direction is perpendicular to the second direction.

2. The circuit breaker according to claim 1, wherein a first spring is disposed between the opening rotary block and the housing, and when the opening rotary block rotates towards the housing, the first spring is switched from a first initial state to a first power accumulation state;

the acting force applied to the opening rotating block when the first spring is in the first power storage state is larger than the acting force applied to the opening rotating block when the first spring is in the first initial state.

3. The circuit breaker of claim 1, wherein the trip rotation block comprises a pressed portion located outside the housing, the pressed portion comprising a first inclined surface and a second inclined surface;

the first inclined plane is used for enabling the opening rotating block to rotate towards the shell by being pressed by the side wall of the inserting frame when the shell is inserted into the inserting frame;

the second inclined surface is used for being pressed by the side wall of the inserting frame to enable the brake separating rotating block to rotate towards the shell when the shell located at the assembling position is pulled out of the inserting frame;

the rotating direction of the opening rotating block when the first inclined plane is pressed by the side wall of the inserting frame is the same as the rotating direction of the opening rotating block when the second inclined plane is pressed by the side wall of the inserting frame.

4. The circuit breaker according to claim 1, wherein the opening rotary block is rotatably connected to the housing in the housing, the first housing wall is provided with a first through hole for the opening rotary block to rotate, and the opening rotary block is inserted into the first through hole;

the opening rotating block comprises a limiting part positioned in the shell, and the limiting part is used for abutting against the first shell wall so as to limit the rotating position of the opening rotating block.

5. The circuit breaker according to any one of claims 1-4, wherein a push block mechanism is further provided on the housing;

the push block mechanism is used for being pressed by the inserting frame to act when the shell is inserted into the inserting frame, so that the breaker is switched from the opening state to the closing state when the shell is inserted into the assembling position.

6. The circuit breaker of claim 5, wherein the housing further comprises a second wall in the second orientation for receipt within the plug frame, the push block mechanism being provided on the second wall;

the push block mechanism is used for being pressed by the bottom wall of the inserting frame to act when the shell is inserted into the inserting frame.

7. The circuit breaker of claim 5, wherein when the circuit breaker is in the closed state, the push block mechanism is located on a rotation path of the opening rotary block;

when the circuit breaker is in a closing state, the push block mechanism is also used for being pressed by the opening rotating block rotating towards the shell to act so as to switch the circuit breaker in the closing state into the opening state.

8. The circuit breaker of claim 7, wherein the push block mechanism comprises a closing push block;

the closing push block comprises a sliding part and a closing touch part, the sliding part is in sliding fit with the shell and can slide relative to the shell along the second direction, and the sliding part is used for being pressed by the insertion frame to slide when the shell is inserted into the insertion frame so as to enable the circuit breaker to be switched from the closing state to the opening state when the shell is inserted into the assembly position;

the opening and closing touch part is fixedly connected with the sliding part in the shell, and when the circuit breaker is in the closing state, the opening and closing touch part is positioned on a rotating path of the opening and closing rotating block;

when the circuit breaker is in a closing state, the opening touch part is used for being pressed by the opening rotating block rotating towards the shell to enable the sliding part to slide, so that the circuit breaker in the closing state is switched to the opening state.

9. The circuit breaker according to claim 8, wherein a second through hole is formed in a second wall of the housing, which is located in the second direction, and is adapted to be received in the insertion frame, and the sliding portion is inserted into the second through hole;

the sliding part is used for being pressed by the bottom wall of the inserting frame to slide towards the shell when the shell is inserted into the inserting frame;

when the circuit breaker is in a closing state, the opening and closing pressing part is used for being pressed by the opening and closing rotating block rotating towards the shell to drive the sliding part to slide towards the outside of the shell.

10. The circuit breaker according to claim 9, wherein in the first direction, the opening contact portion is located between the sliding portion and the first housing wall;

the brake separating touch and press part is also used for abutting against the second shell wall so as to limit the sliding position of the sliding part.

11. The circuit breaker of claim 8, further comprising a switching-off and switching-on actuator, the switching-off and switching-on actuator disposed within the housing;

the opening and closing actuating mechanism comprises a rotating component, a movable contact and a fixed contact, the rotating component is rotatably connected with the shell, the movable contact is fixedly connected to the rotating component, the rotating component can drive the movable contact to rotate, the fixed contact is fixedly connected with the shell, and the fixed contact is positioned on a rotating path of the movable contact;

the push block mechanism further comprises a first connecting rod, a control rotating block and a second connecting rod, and the control rotating block is rotatably connected with the shell;

the first connecting rod comprises a first hinged end and a second hinged end which are opposite, the first hinged end is hinged with the edge of the rotating assembly, and the second hinged end is hinged with the edge of the control rotating block;

the second connecting rod comprises a third hinged end and a fourth hinged end which are opposite, the third hinged end is hinged with the edge of the control rotating block, and the fourth hinged end is hinged with the sliding part;

when the shell is inserted into the insertion frame to enable the sliding part to be pressed by the insertion frame to slide, the sliding part drives the movable contact to rotate towards the direction close to the fixed contact through the second connecting rod, the control rotating block, the first connecting rod and the rotating assembly, so that when the shell is inserted into the assembling position, the movable contact is in contact with the fixed contact, and the switching of the circuit breaker from the switching-off state to the switching-on state is realized;

when the sliding part slides under the pressing of the opening rotating block rotating towards the shell, the sliding part drives the movable contact to rotate towards the direction far away from the fixed contact through the second connecting rod, the control rotating block, the first connecting rod and the rotating assembly, so that the movable contact is separated from the fixed contact, and the switching of the circuit breaker from the closing state to the opening state is realized.

12. The circuit breaker according to claim 11, wherein a second spring is disposed between the control rotary block and the housing, and when the housing is inserted into the insertion frame to make the sliding portion pressed by the insertion frame to drive the control rotary block to rotate, the second spring is switched from a second initial state to a second power storage state;

a third spring is arranged between the rotating assembly and the shell, and when the rotating assembly rotates towards the direction of enabling the movable contact to approach the fixed contact, the third spring is switched from a third initial state to a third power storage state;

the second hinged end and the third hinged end are arranged at intervals along the edge of the control rotating block, and when the movable contact is in contact with the fixed contact, the second hinged end and the third hinged end are respectively positioned on two sides of a self-locking plane so as to switch the control rotating block into a self-locking state;

the acting force applied to the control rotating block when the second spring is in the second power accumulation state is larger than the acting force applied to the control rotating block when the second spring is in the second initial state;

the acting force applied to the rotating assembly by the third spring in the third power accumulation state is larger than the acting force applied to the rotating assembly by the third spring in the third initial state;

the self-locking plane is a plane where the first hinged end rotates relative to the rotating assembly and the rotating shaft which controls the rotating block to rotate relative to the shell are located.

13. The circuit breaker of claim 12, further comprising a protection mechanism;

the rotating assembly comprises a rotating arm, a locking rotating block, a tripping rotating block and a fourth spring;

the rotating arm and the tripping rotating block are both rotatably connected with the shell, a rotating shaft of the rotating arm rotating relative to the shell is coaxial with a rotating shaft of the tripping rotating block rotating relative to the shell, the movable contact is arranged at one end of the rotating arm, the other end of the rotating arm is hinged with one end of the locking rotating block, the other end of the locking rotating block is buckled with the tripping rotating block, the fourth spring is arranged between the tripping rotating block and the rotating arm, the locking rotating block is tightly pressed and fixed on the rotating arm by the fourth spring, the first hinged end is hinged with the locking rotating block, and the third spring is arranged between the rotating arm and the shell;

the protection mechanism is in transmission connection with the edge of the tripping rotary block and is used for driving the tripping rotary block to rotate towards the direction far away from the locking rotary block when the current flowing in the circuit breaker exceeds a preset value so as to enable the tripping rotary block and the locking rotary block to be tripped;

after the tripping rotating block and the locking rotating block are tripped, the locking rotating block is used for driving the first hinged end to rotate relative to the rotating arm to a position where the second hinged end and the third hinged end are located on the same side of the self-locking plane, so that the movable contact is separated from the fixed contact under the action of the third spring.

14. The circuit breaker of any of claims 1-4, wherein the housing further comprises a third wall in the second direction, the third wall configured to be disposed outside the frame, the third wall defining an outlet interface, the outlet interface having an outlet terminal disposed therein;

the shell is further provided with a communication hole communicated with the wire outlet interface, the axis of the communication hole is perpendicular to the axis of the wire outlet interface communicated with the communication hole, and a locking bolt penetrates through the communication hole and is used for locking and fixing a power receiving connecting terminal inserted in the wire outlet interface.

15. The circuit breaker according to claim 14, wherein the outlet terminal comprises a wire frame, the wire frame is fastened to the housing, the wire frame is opened with a threaded hole opposite to the communication hole, the threaded hole is a through hole, the locking bolt is screwed to a hole wall of the threaded hole opposite to the communication hole where the locking bolt is located, and the locking bolt is used for locking and fixing the power receiving connection terminal inserted in the wire frame to the wire frame.

16. A power supply device for mounting a circuit breaker according to any one of claims 1 to 15;

the power supply device comprises an inserting frame, the inserting frame is used for inserting a shell of the circuit breaker, and an accommodating groove is formed in the side wall of the inserting frame;

the insertion frame is used for enabling the opening rotating block of the circuit breaker to rotate towards the shell when the shell is inserted into the insertion frame;

the accommodating groove is used for providing a space for enabling the opening rotating block to rotate towards the accommodating groove when the shell is inserted into the assembling position in the inserting frame, so that part of the opening rotating block is accommodated in the accommodating groove;

the inserting frame is further used for enabling the opening rotating block to rotate in the shell to the outside of the accommodating groove when the shell located at the assembling position is pulled out of the inserting frame.

17. An electrical distribution apparatus comprising a power supply device according to claim 16 and a circuit breaker according to any one of claims 1 to 15;

the shell of the circuit breaker is inserted into the insertion frame of the power supply device, and the opening and rotating block part of the circuit breaker is accommodated in the accommodating groove of the power supply device.