CN218482179U - Operating device and circuit breaker - Google Patents

Abstract

The application provides an operating device and circuit breaker, relate to low-voltage apparatus technical field, the operating device of this application, including the casing and with casing sliding connection's button, be provided with combined floodgate locking structure in the casing, the electromagnetic trip, moving contact and static contact, combined floodgate locking structure, electromagnetic trip and moving contact and button fixed connection, the static contact is connected with the casing, the button drives moving contact and static contact or separation, combined floodgate locking structure is used for locking the slip of button, the electromagnetic trip is driven to promote combined floodgate locking structure and removes the locking to the slip of button. The application provides an operating device and circuit breaker to solve the problem that operating device structure is complicated among the prior art.

Description

Operating mechanism and circuit breaker

Technical Field

The application relates to the technical field of low-voltage apparatuses, in particular to an operating mechanism and a circuit breaker.

Background

The circuit breaker is a switching device capable of closing, bearing and breaking current under the condition of a normal loop, along with the rapid development of power and communication technology in China, higher and higher requirements are provided for the practicability, safety and reliability of terminal electrical equipment such as the circuit breaker, the traditional circuit breaker can not meet the requirements far away, in the continuous research and development, the circuit breaker not only reaches a new level in the aspects of miniaturization, intellectualization, reliability and the like, a plurality of brand new designs appear on the structure, if the circuit breaker can be conveniently plugged and unplugged like a common electrical plug, the circuit breaker can be conveniently installed or withdrawn from a circuit, the circuit breaker can be locked in a stable working state in the installation position, and meanwhile, the circuit breaker can adapt to various requirements on power quality, automatic control and the like in intellectualization and is called as a plug-in circuit breaker.

The circuit breaker in the prior art is mainly a traditional mechanical circuit breaker and comprises an operating mechanism, a contact, an arc extinguish chamber and other structures, wherein the operating mechanism comprises a fixed contact, a moving contact contacted with or separated from the fixed contact, a handle connected with the moving contact, a lock catch for driving the moving contact to move, a jump buckle, an electromagnetic release and other parts, so that the operating mechanism in the prior art is complex in structure.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide an operating mechanism and a circuit breaker aiming at the defects in the prior art, so as to solve the problem that the structure of the operating mechanism is complex in the prior art.

In order to achieve the above purpose, the technical solutions adopted in the embodiments of the present application are as follows:

an aspect of the embodiment of the application provides an operating mechanism, including a housing and a button slidably connected to the housing, a closing locking structure, an electromagnetic trip, a moving contact and a static contact are provided in the housing, the closing locking structure, the electromagnetic trip and the moving contact are fixedly connected to the button, the static contact is connected to the housing, the button drives the moving contact to contact with or separate from the static contact, the closing locking structure is used for locking the sliding of the button, and the electromagnetic trip is driven to push the closing locking structure to unlock the sliding of the button.

As an implementable mode, the closing locking structure comprises a shaft connected with the button and a torsion spring sleeved on the shaft, the shaft extends along a direction perpendicular to the sliding direction of the button, and two elastic end parts of the torsion spring are respectively clamped with two opposite side walls of the shell to lock the relative positions of the button and the shell when the operating mechanism is closed.

As an implementation manner, at least one elastic end of the torsion spring is provided with a fastener, a groove is formed on the side wall of the housing corresponding to the fastener, and when the button slides to drive the moving contact to contact with the static contact, the fastener extends into the groove to lock the relative position of the button and the housing.

As an implementable mode, electromagnetic release includes the yoke frame, has set gradually in the yoke frame and has moved iron core, iron core spring and quiet iron core, and quiet iron core periphery is around being equipped with the coil, quiet iron core and yoke frame fixed connection move the fixed ejector pin that is provided with in center department of iron core, and the ejector pin exposes the effect end behind iron core spring, quiet iron core and the yoke frame in proper order, and the lateral wall that is close to the yoke frame that moves the iron core outwards extends and forms the yoke board.

As an implementable mode, electromagnetic trip and button fixed connection, and the effect end of ejector pin is towards the axle, corresponds the axle on the button and is provided with the sliding tray that extends along button slip direction, moves the iron core and drives the ejector pin and stretch out, and the ejector pin promotes the axle and moves in the sliding tray direction far away from electromagnetic trip, drives the action of torsional spring for the fastener is pulled out unblock behind the recess.

As a practical manner, the operating mechanism further includes a first elastic member connected to the button, and the other end of the first elastic member is connected to the housing to accumulate elastic potential energy when the button is closed.

As an implementable mode, the moving contact comprises a connecting part, a small diameter part and a contact part which are sequentially connected, the connecting part is connected with the electromagnetic release, a second elastic piece is sleeved on the small diameter part, the contact part is used for being contacted with or separated from the static contact, two ends of the second elastic piece are respectively abutted against the electromagnetic release and the contact part, and the second elastic piece is compressed to provide elastic force towards the static contact.

As a practical mode, a partition plate is arranged between the first elastic element and the electromagnetic release, the partition plate is attached to a yoke plate of the electromagnetic release, a connecting groove is formed in a concave surface where the partition plate is attached to the yoke plate, and the connecting part extends into the connecting groove to fix the position of the moving contact.

As an implementation manner, through holes are correspondingly formed in two opposite side walls of the shell body along the direction perpendicular to the sliding direction of the button, when the moving contact is separated from the fixed contact, long grooves are formed in positions of connecting lines of the through holes on two corresponding sides of the button, and the through holes and the long grooves are used for inserting limiting rods to fix the opening position of the operating mechanism when the operating mechanism is opened.

Another aspect of this application embodiment provides a circuit breaker, including foretell operating device and set up the solid state switching device in operating device's casing, solid state switching device includes the electronic circuit board with operating device series connection, is provided with signal acquisition device and signal processing device on the electronic circuit board, and signal acquisition device gathers the separating brake signal and sends for the signal processing device, and the signal processing device passes through the separating brake of electronic circuit board control operating device.

The beneficial effect of this application includes:

the application provides an operating mechanism, which comprises a shell and a button in sliding connection with the shell, wherein a switching-on locking structure, an electromagnetic trip, a moving contact and a fixed contact are arranged in the shell, the switching-on locking structure, the electromagnetic trip and the moving contact are fixedly connected with the button, the fixed contact is connected with the shell, the button drives the moving contact to be in contact with or separated from the fixed contact when sliding relative to the shell, and switching-off and switching-on of the operating mechanism are achieved.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of an operating mechanism according to an embodiment of the present disclosure;

fig. 2 is a second schematic structural diagram of an operating mechanism according to an embodiment of the present application;

fig. 3 is a third schematic structural diagram of an operating mechanism according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a closing locking structure provided in an embodiment of the present application;

fig. 5 is a schematic structural diagram of an electromagnetic release provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of a housing according to an embodiment of the present disclosure;

fig. 7 is a second schematic structural diagram of a housing according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a movable contact according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a button according to an embodiment of the present disclosure;

fig. 10 is a schematic structural diagram of a circuit breaker according to an embodiment of the present application.

Icon: 10-an operating mechanism; 11-a housing; 111-grooves; 112-a through hole; 113-mounting holes; 12-a button; 121-a sliding groove; 122-a separator; 123-connecting grooves; 124-long groove; 13-a closing locking structure; 131-axis; 132-torsion spring; 133-a fastener; 14-an electromagnetic release; 141-yoke frame; 142-a plunger; 143-stationary core; 144-core spring; 145-mandril; 146-a yoke plate; 15-moving contact; 151-a connecting portion; 152-a small diameter part; 153-a contact; 154-a second resilient member; 16-a stationary contact; 17-a first elastic member; 20-a circuit breaker; 21-an electronic circuit board; 22-a signal acquisition device; 23-signal processing means.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. It should be noted that, in case of no conflict, various features in the embodiments of the present application may be combined with each other, and the combined embodiments are still within the scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In an aspect of the embodiment of the present application, as shown in fig. 1, fig. 2, and fig. 3, an operating mechanism 10 is provided, and includes a housing 11 and a button 12 slidably connected to the housing 11, a closing locking structure 13, an electromagnetic trip 14, a moving contact 15, and a stationary contact 16 are disposed in the housing 11, the closing locking structure 13, the electromagnetic trip 14, and the moving contact 15 are fixedly connected to the button 12, the stationary contact 16 is connected to the housing 11, the button 12 drives the moving contact 15 to contact with or separate from the stationary contact 16, the closing locking structure 13 is configured to lock a sliding motion of the button 12, and the electromagnetic trip 14 is driven to push the closing locking structure 13 to unlock the sliding motion of the button 12.

The operating mechanism 10 provided by the embodiment of the application is applied to the circuit breaker 20 and comprises a manual operating mode and an electric operating mode. In a manual operation mode, an operator presses the button 12 to slide the button 12 into the housing 11, and drives the movable contact 15 fixed to the button 12 to approach the fixed contact 16 and contact the fixed contact 16, so that the operating mechanism 10 is switched on, and the circuit breaker 20 is switched on; an operator pulls the button 12 outwards to move the button 12 in a direction away from the housing 11, so as to drive the movable contact 15 fixed with the button 12 to be away from the fixed contact 16 and be separated from the fixed contact 16, thereby realizing the opening of the operating mechanism 10 and enabling the circuit breaker 20 to be in an opening state. In the electrical operation mode, the electromagnetic trip 14 receives a switching-off signal, and drives the switching-on locking structure 13 to unlock the sliding of the button 12, so that the button 12 moves in a direction away from the housing 11, and drives the movable contact 15 to move away from the fixed contact 16 and separate from the fixed contact 16, thereby implementing switching-off of the operating mechanism 10, and enabling the circuit breaker 20 to be in a switching-off state.

When the operating mechanism 10 is switched on, the switching-on locking structure 13 locks the sliding of the button 12, thereby locking the position of the movable contact 15, enabling the movable contact 15 to be located at a switching-on position and to be in stable contact with the fixed contact 16, and improving the stable switching-on state of the operating mechanism 10.

In addition, in order to avoid the situation that the button is pulled out due to the fact that an operator exerts too hard during pulling, a limiting piece is arranged on the shell and used for limiting the sliding range of the button, and therefore the situation is avoided.

In the embodiment of the application, the switch-on locking structure, the electromagnetic release 14 and the movable contact 15 are fixedly connected with the button 12, and in the process of switching-off and switching-on, the switching-off and the switching-on of the operating mechanism 10 can be controlled as long as the control button 12 slides relative to the shell 11, so that the movement form of the operating mechanism 10 is simplified, and in addition, compared with the operating mechanism 10 in the prior art, parts in the operating mechanism 10 are reduced, so that the structure of the operating mechanism 10 is simplified. In addition, the number of parts of the operating mechanism 10 is reduced, and the space occupied by the operating mechanism 10 is also reduced.

In order to show the structure of the operating mechanism 10 more clearly, fig. 2 and fig. 3 are schematic structural diagrams of the housing 11 or a part of the housing 11 being removed, and in practical applications, the closing locking structure 13, the electromagnetic trip 14, the movable contact 15, the static contact 16, and other components are disposed inside a space enclosed by the housing 11. In addition, in order to facilitate the installation of the circuit breaker 20, the housing 11 is generally configured as a first sub-housing and a second sub-housing that are engaged with each other, and the first sub-housing and the second sub-housing are engaged with each other in a direction perpendicular to the sliding direction of the button 12.

The application provides an operating mechanism 10, when a button 12 slides relative to a housing 11, a moving contact 15 is driven to contact or separate from a static contact 16, switching-off and switching-on of the operating mechanism 10 are realized, a switching-on locking structure 13 is used for locking sliding of the button 12, when the operating mechanism 10 is in a switching-on state, the switching-on locking structure 13 locks sliding of the button 12, so that the relative position of the button 12 relative to the housing 11 is fixed, the position of the moving contact 15 is fixed, so that the moving contact 15 and the static contact 16 are stably contacted, and an electromagnetic trip 14 is driven to push the switching-on locking structure 13 to unlock sliding of the button 12.

Alternatively, as shown in fig. 3 and 4, the closing locking structure 13 includes a shaft 131 connected to the button 12, and a torsion spring 132 sleeved on the shaft 131, wherein the shaft 131 extends in a direction perpendicular to the sliding direction of the button 12, and two elastic end portions of the torsion spring 132 are respectively engaged with two opposite side walls of the housing 11 to lock the relative positions of the button 12 and the housing 11 when the operating mechanism 10 is closed.

The closing locking structure 13 is used for locking the sliding of the button 12 when the operating mechanism 10 is closed, when the closing locking structure 13 is locked, the positions of the button 12 and the housing 11 are relatively fixed, in order to fix the relative positions of the button 12 and the housing 11, the closing locking structure 13 is a shaft 131 connected with the button 12 and a torsion spring 132 sleeved on the shaft 131, two elastic end portions of the torsion spring 132 are clamped with two opposite side walls of the housing 11, and the relative position fixing of the button 12 and the housing 11 is realized.

When the operating mechanism 10 is switched on, an operator presses the button 12, the button 12 moves towards the inside of the housing 11, so that the movable contact 15 is in contact with the fixed contact 16, the two elastic end portions of the torsion spring 132 are clamped with the two opposite side walls of the housing 11, the position of the shaft 131 relative to the housing 11 is fixed, the position of the button 12 relative to the housing 11 is fixed, the position of the movable contact 15 is relatively fixed, and the movable contact 15 is stably contacted with the fixed contact 16; when the operating mechanism 10 is opened, an operator applies an outward pulling force to the button 12, the button 12 moves in a direction away from the housing 11, and drives the shaft 131 to move in a direction away from the housing 11, so that the torsion spring 132 moves in a direction away from the housing 11, and the housings 11 on both sides compress the two elastic ends of the torsion spring 132, thereby separating the movable contact 15 from the stationary contact 16.

In an implementation manner of the embodiment of the present application, as shown in fig. 4, fig. 6 and fig. 7, at least one elastic end of the torsion spring 132 is provided with a fastener 133, a side wall of the housing 11 is provided with a groove 111 corresponding to the fastener 133, and when the button 12 slides to drive the movable contact 15 to contact the stationary contact 16, the fastener 133 extends into the groove 111 to lock a relative position between the button 12 and the housing 11.

When the operating mechanism 10 is switched on, an operator presses the button 12, the button 12 moves towards the inside of the housing 11 to drive the movable contact 15 to approach the fixed contact 16, and simultaneously drives the shaft 131 to move towards the direction approaching the fixed contact 16, and the shaft 131 drives the torsion spring 132 to approach the fixed contact 16, so that the fastener 133 moves towards the direction approaching the fixed contact 16 in the housing 11, when the movable contact 15 contacts the fixed contact 16, the fastener 133 extends into the groove 111, because the groove 111 has a certain depth, the position of the fastener 133 is relatively fixed, the position of the torsion spring 132 is relatively fixed, the position of the button 12 is relatively fixed through the shaft 131, the position of the movable contact 15 is relatively fixed, and thus the movable contact 15 is stably contacted with the fixed contact 16.

When the operating mechanism 10 is opened, an operator applies an outward pulling force to the button 12, so that the button 12 moves in a direction away from the housing 11 to drive the movable contact 15 to move away from the fixed contact 16, and simultaneously drives the shaft 131 to move in a direction away from the fixed contact 16, and the shaft 131 drives the torsion spring 132 to move in a direction away from the fixed contact 16, so as to drive the fastener 133 to move in a direction away from the fixed contact 16, move out of the groove 111, and thereby separate the movable contact 15 from the fixed contact 16.

Wherein, the fastener 133 is disposed at least one elastic end, when the fastener 133 is disposed at one elastic end, one end of the torsion spring 132 is fixedly connected with the fastener 133, and the other end abuts against the sidewall of the housing 11; when the fasteners 133 are disposed at the two elastic end portions, the two sidewalls of the housing 11 are both provided with the grooves 111, so that the fasteners 133 correspondingly extend into the grooves 111.

Optionally, as shown in fig. 5, the electromagnetic release 14 includes a yoke frame 141, a movable iron core 142, an iron core spring 144 and a stationary iron core 143 are sequentially disposed in the yoke frame 141, a coil is wound around the outer periphery of the stationary iron core 143, the stationary iron core 143 is fixedly connected to the yoke frame 141, a push rod 145 is fixedly disposed at the center of the movable iron core 142, the push rod 145 sequentially penetrates through the iron core spring 144, the stationary iron core 143 and the yoke frame 141 to expose an acting end, and a side wall of the yoke frame 141 close to the movable iron core 142 extends outward to form a yoke plate 146.

In the electric operation mode, the coil receives an external opening electric signal, the static iron core 143 attracts the movable iron core 142 after the coil is electrified, so that the movable iron core 142 moves towards the static iron core 143, and the movable iron core 142 is fixedly connected with the ejector rod 145, so that the action end of the ejector rod 145 moves towards the direction far away from the electromagnetic release 14.

In an implementation manner of the embodiment of the present application, as shown in fig. 4 and 5, the electromagnetic release 14 is fixedly connected to the button 12, an acting end of the ejector 145 faces the shaft 131, a sliding groove 121 extending along a sliding direction of the button 12 is disposed on the button 12 corresponding to the shaft 131, the plunger 142 is driven to drive the ejector 145 to extend out, the ejector 145 drives the shaft 131 to move in the sliding groove 121 in a direction away from the electromagnetic release 14, and drives the torsion spring 132 to move, so that the fastener 133 is pulled out of the groove 111 and then unlocked.

In the electric operation mode, the coil of the electromagnetic release 14 receives the opening signal, so that the push rod 145 extends, when the push rod 145 extends, the push shaft 131 is pushed to move in the direction away from the electromagnetic release 14, the shaft 131 drives the torsion spring 132 to move in the direction away from the electromagnetic release 14, and the fastener 133 arranged at the elastic end of the torsion spring 132 is pulled by the torsion spring 132 in the direction away from the electromagnetic release 14 and moves out of the groove 111.

It should be noted that, because the shaft 131 and the button 12 are required to be relatively fixed in the manual operation mode, and the shaft 131 is required to slide in the sliding groove 121 in the electric operation mode, the torsion spring 132 and the shaft 131 only need to move a slightly short distance because the opening operation requires the removal of the fastener 133 from the groove 111, and the fastener 133 is small, so that the length of the sliding groove 121 is set slightly smaller, and the influence on the manual operation mode is reduced.

Optionally, as shown in fig. 2 and 3, the operating mechanism 10 further includes a first elastic member 17 connected to the button 12, and the other end of the first elastic member 17 is connected to the housing 11 to accumulate elastic potential energy when the button 12 is closed.

When the operating mechanism 10 is switched off through the manual operating mode or the electric operating mode, the position of the button 12 is uncertain, and there is a situation that the pulling is incomplete or the ejector rod 145 is not in place, so that the distance between the movable contact 15 and the fixed contact 16 is relatively short, and the switching off of the operating mechanism 10 is incomplete, in order to avoid the above situation, the first elastic member 17 is arranged between the button 12 and the housing 11, the first elastic member 17 is compressed when the operating mechanism 10 is switched on, and elastic potential energy is accumulated, when the operating mechanism 10 is switched off, the fastener 133 is pulled out of the groove 111 by the pushing of the manual pulling or the ejector rod 145, the elastic potential energy of the first elastic member 17 is released, because the other end of the first elastic member 17 is connected with the housing 11, when the elastic potential energy is released by the first elastic member 17, the button 12 is pushed to move in a direction away from the housing 11, and when the operating mechanism 10 is switched off under the action of the elastic potential energy of the first elastic member 17, the button 12 is in a fixed position, and a stable switching off state is realized.

In order to improve the stability of the connection between the first elastic member 17 and the housing 11, as shown in fig. 6, a mounting hole 113 may be formed in the housing 11, and one end of the first elastic member 17 may be fixedly disposed in the mounting hole 113.

The first elastic member 17 accumulates elastic potential energy when the button 12 is closed, that is, the elastic direction of the first elastic member 17 is the sliding direction of the button 12. In addition, the specific structure of the first elastic member 17 is not limited in the embodiments of the present application, and may be a compression spring, or a torsion spring, a leaf spring, or the like, for example, as shown in fig. 2, it may be a compression spring.

In an implementation manner of the embodiment of the present application, as shown in fig. 2, fig. 3 and fig. 8, the movable contact 15 includes a connecting portion 151, a small diameter portion 152 and a contact portion 153, which are connected in sequence, the connecting portion 151 is connected to the electromagnetic release 14, the small diameter portion 152 is sleeved with a second elastic member 154, the contact portion 153 is used for contacting with or separating from the stationary contact 16, two ends of the second elastic member 154 respectively abut against the electromagnetic release 14 and the contact portion 153, and the second elastic member 154 is compressed to provide an elastic force toward the stationary contact 16.

In order to further improve the contact stability of the moving contact 15 and the stationary contact 16 when the operating mechanism 10 is switched on, the small diameter portion 152 of the moving contact 15 is sleeved with the second elastic member 154, and two ends of the second elastic member 154 respectively abut against the electromagnetic release 14 and the contact portion 153, so that the moving contact 15 has potential energy close to the stationary contact 16, and when the moving contact 15 contacts with the stationary contact 16, the elastic force can be provided, so that the moving contact 16 has pressure when contacting, and the contact stability is improved.

Optionally, as shown in fig. 2 and 9, a partition plate 122 is disposed between the first elastic element 17 and the electromagnetic release 14, the partition plate 122 is attached to a yoke plate 146 of the electromagnetic release 14, a connection groove 123 is formed in a concave surface of the partition plate 122 attached to the yoke plate 146, and the connection portion 151 extends into the connection groove 123 to fix the position of the movable contact 15.

In order to improve the stability of the connection between the movable contact 15 and the electromagnetic release 14, the connecting groove 123 is formed in the concave surface of the partition plate 122, which is attached to the yoke plate 146, the connecting portion 151 of the movable contact 15 extends into the connecting groove 123, the partition plate 122 is attached to the yoke plate 146, so that the yoke plate 146 and the partition plate 122 limit the connecting portion 151 together, in addition, since the size of the small diameter portion 152 is smaller than that of the connecting portion 151, in order to make the small diameter portion 152 extend out of the partition plate 122, the groove 111 is set to be a groove in a convex shape matching with the connecting portion 151 and the small diameter portion 152, the side wall of the groove 111 in a convex shape limits the connecting portion 151 along the sliding direction of the button 12, and thus the stable connection between the movable contact 15 and the electromagnetic release 14 is realized.

In order to improve the fixing strength of the electromagnetic trip 14, the closing locking structure 13, and the first elastic member 17 to the button 12, the button 12 may be extended outward to form an extension portion, and the above components may be fixed to the extension portion, as shown in fig. 9, the extension portion may include a space for disposing the above components, so that the above components may be disposed on the same component, and the connection strength may be improved.

In an implementation manner of the embodiment of the present application, as shown in fig. 3, fig. 6, fig. 7, and fig. 9, through holes 112 are correspondingly disposed on two opposite sidewalls of the housing 11 along a direction perpendicular to a sliding direction of the button 12, when the movable contact 15 is separated from the fixed contact 16, long grooves 124 are disposed at positions of the button 12 corresponding to connection lines of the through holes 112 on two sides, and the through holes 112 and the long grooves 124 are used for inserting a limiting rod to fix a switching-off position of the operating mechanism 10 when the operating mechanism 10 is switched off.

When the circuit breaker 20 is maintained in the open state, the limiting rod is inserted into the through hole 112 and the elongated slot 124 to lock the open state of the operating mechanism 10, and after the open state is locked, the position of the button 12 is fixed at the open position, so that the phenomenon that other persons mistakenly press the button 12 to close the operating mechanism 10 to cause a safety accident when a maintenance person maintains the operating mechanism 10 is avoided, and the safety of the operating mechanism 10 is improved.

The embodiment of the present application further discloses a circuit breaker 20, as shown in fig. 10, including the above-mentioned operating mechanism 10 and the solid state switching device arranged in the housing 11 of the operating mechanism 10, the solid state switching device includes an electronic circuit board 21 connected in series with the operating mechanism 10, a signal acquisition device 22 and a signal processing device 23 are arranged on the electronic circuit board 21, the signal acquisition device acquires the opening signal and sends the opening signal to the signal processing device 23, and the signal processing device 23 controls the opening of the operating mechanism 10 through the electronic circuit board 21. The circuit breaker 20 includes the same structure and advantageous effects as the operating mechanism 10 in the foregoing embodiment. The structure and advantages of the operating mechanism 10 have been described in detail in the foregoing embodiments, and are not described in detail herein.

As can be seen from the foregoing, the operating mechanism 10 provided in the embodiment of the present application has an advantage of occupying a small space, and when the operating mechanism provided in the embodiment of the present application is applied to a circuit breaker including a solid-state switching device, the volume occupied by the circuit breaker can be reduced. More spaces can be reserved for the solid-state switching device under the condition that the internal space of the circuit breaker is fixed, so that the difficulty in laying the solid-state switching device is reduced.

In addition, the circuit breaker 20 in the embodiment of the present application further includes a signal collector, a signal processor, and an electronic circuit board 21, so that signal control of the circuit breaker 20 is realized, communication between the circuit breaker 20 and the outside is realized, arc extinguishing performance of the circuit breaker 20 is improved, and service life of the circuit breaker 20 is prolonged.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. An operating mechanism (10) is characterized by comprising a shell (11) and a button (12) which is slidably connected with the shell (11), wherein a closing locking structure (13), an electromagnetic trip (14), a movable contact (15) and a fixed contact (16) are arranged in the shell (11), the closing locking structure (13), the electromagnetic trip (14) and the movable contact (15) are fixedly connected with the button (12), the fixed contact (16) is connected with the shell (11), the button (12) drives the movable contact (15) to be in contact with or separated from the fixed contact (16), the closing locking structure (13) is used for locking the sliding of the button (12), and the electromagnetic trip (14) is driven to push the closing locking structure (13) to release the locking of the sliding of the button (12).

2. The operating mechanism (10) according to claim 1, wherein the closing locking structure (13) comprises a shaft (131) connected to the button (12), and a torsion spring (132) sleeved on the shaft (131), the shaft (131) extends along a direction perpendicular to a sliding direction of the button (12), two elastic ends of the torsion spring (132) are respectively engaged with two opposite sidewalls of the housing (11) to lock a relative position of the button (12) and the housing (11) when the operating mechanism (10) is closed.

3. The operating mechanism (10) of claim 2, wherein at least one elastic end of the torsion spring (132) is provided with a fastener (133), a sidewall of the housing (11) is provided with a groove (111) corresponding to the fastener (133), and when the movable contact (15) is slid by the button (12) to contact the stationary contact (16), the fastener (133) extends into the groove (111) to lock a relative position of the button (12) and the housing (11).

4. The operating mechanism (10) according to claim 3, wherein the electromagnetic release (14) comprises a yoke frame (141), a movable iron core (142), an iron core spring (144) and a static iron core (143) are sequentially arranged in the yoke frame (141), a coil is wound around the periphery of the static iron core (143), the static iron core (143) is fixedly connected with the yoke frame (141), a push rod (145) is fixedly arranged at the center of the movable iron core (142), the push rod (145) sequentially passes through the iron core spring (144), the static iron core (143) and the yoke frame (141) to expose an acting end, and a side wall of the yoke frame (141) close to the movable iron core (142) extends outwards to form a yoke plate (146).

5. The operating mechanism (10) according to claim 4, wherein the electromagnetic release (14) is fixedly connected to the button (12), and an action end of the push rod (145) faces the shaft (131), a sliding groove (121) extending along a sliding direction of the button (12) is provided on the button (12) corresponding to the shaft (131), the movable iron core (142) is driven to drive the push rod (145) to extend, the push rod (145) pushes the shaft (131) to move in the sliding groove (121) in a direction away from the electromagnetic release (14), and drives the torsion spring (132) to move, so that the fastener (133) is pulled out of the groove (111) and then is unlocked.

6. Operating mechanism (10) according to claim 1, further comprising a first elastic member (17) connected to said push-button (12), the other end of said first elastic member (17) being connected to said housing (11) to accumulate elastic potential energy when said push-button (12) is closed.

7. The operating mechanism (10) according to claim 6, wherein the movable contact (15) includes a connecting portion (151), a small diameter portion (152) and a contact portion (153) connected in sequence, the connecting portion (151) is connected to the electromagnetic trip (14), the small diameter portion (152) is sleeved with a second elastic member (154), the contact portion (153) is used for contacting with or separating from the stationary contact (16), two ends of the second elastic member (154) respectively abut against the electromagnetic trip (14) and the contact portion (153), and the second elastic member (154) is used for accumulating elastic potential energy when the operating mechanism (10) is switched on.

8. The operating mechanism (10) according to claim 7, wherein a partition plate (122) is disposed between the first elastic member (17) and the electromagnetic release (14), the partition plate (122) is disposed in contact with a yoke plate (146) of the electromagnetic release (14), a connecting groove (123) is formed in a concave surface of the partition plate (122) in contact with the yoke plate (146), and the connecting portion (151) extends into the connecting groove (123) to fix the position of the movable contact (15).

9. The operating mechanism (10) according to claim 2, wherein the housing (11) is provided with through holes (112) along two opposite side walls perpendicular to the sliding direction of the button (12), when the movable contact (15) is separated from the stationary contact (16), the button (12) is provided with an elongated slot (124) at a position corresponding to a connection line of the through holes (112) on two sides, and the through holes (112) and the elongated slot (124) are used for inserting a limiting rod to fix the opening position of the operating mechanism (10) when the operating mechanism (10) is opened.

10. A circuit breaker (20), comprising an operating mechanism (10) as claimed in any one of claims 1 to 9, and a solid-state switching device disposed in a housing (11) of the operating mechanism (10), wherein the solid-state switching device comprises an electronic circuit board (21) connected in series with the operating mechanism, a signal acquisition device (22) and a signal processing device (23) are disposed on the electronic circuit board (21), the signal acquisition device acquires a tripping signal and sends the tripping signal to the signal processing device (23), and the signal processing device (23) controls tripping of the operating mechanism (10) through the electronic circuit board (21).

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