CN221529844U - Operating mechanism and circuit breaker - Google Patents

Abstract

The utility model discloses an operating mechanism and a circuit breaker, and relates to the technical field of piezoelectric devices. The operating mechanism comprises a shell and a button which is in sliding connection with the shell, wherein a locking piece, a contact seat, a moving contact and a fixed contact are arranged in the shell, the locking piece is rotationally connected with the shell, the contact seat is in sliding connection with the shell, the moving contact is arranged on the contact seat, the fixed contact is fixedly connected with the shell, the button is in sliding connection with the contact seat, the button drives the moving contact to be switched on or switched off with the fixed contact, the locking piece is buckled with the contact seat during switching on, and the locking piece is unbuckled with the contact seat during switching off. The operating mechanism and the circuit breaker can solve the problem that the operating mechanism in the prior art is complex in structure.

Description

Operating mechanism and circuit breaker

Technical Field

The utility model relates to the technical field of piezoelectric devices, 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 normal loop conditions, along with rapid development of electric power and communication technology in China, increasingly high requirements are put forward on practicality, safety and reliability of terminal electrical equipment such as the circuit breaker, the conventional circuit breaker can not meet the requirements far away, in continuous research and development, the circuit breaker not only achieves new levels in aspects of miniaturization, intellectualization, reliability and the like, but also has a plurality of brand-new designs in structure, such as a common electric plug, the circuit breaker can be conveniently installed or withdrawn from a circuit, the circuit breaker can be locked in a stable working state in an installation position, and various requirements of intellectualization on power quality, automatic control and the like can be met.

The circuit breaker among the prior art is mainly traditional mechanical type circuit breaker, including operating device, contact, explosion chamber isotructure, wherein, operating device includes the fixed contact, with the fixed contact or the moving contact of separation, with the handle of moving contact connection to and drive parts such as hasp, jump knot and the electromagnetic release of moving contact motion for operating device among the prior art is complicated in structure.

Disclosure of utility model

The utility model aims to provide an operating mechanism and a circuit breaker, which can solve the problem of complex structure of the operating mechanism in the prior art.

Embodiments of the present utility model are implemented as follows:

According to a first aspect of the embodiment of the utility model, an operating mechanism is provided, the operating mechanism comprises a shell and a button slidingly connected with the shell, a lock catch piece, a contact seat, a moving contact and a fixed contact are arranged in the shell, the lock catch piece is rotationally connected with the shell, the contact seat is slidingly connected with the shell, the moving contact is arranged on the contact seat, the fixed contact is fixedly connected with the shell, the button is slidingly connected with the contact seat, the button drives the moving contact to be switched on or off with the fixed contact, the lock catch piece is buckled with the contact seat during switching on, and the lock catch piece is unbuckled with the contact seat during switching off. The operating mechanism can solve the problem that the operating mechanism in the prior art is complex in structure.

Optionally, a first buckling part and a first unbuckling part are arranged on the locking piece, a second buckling part is arranged on the contact seat, a second unbuckling part is arranged on the button, the second unbuckling part is propped against the first unbuckling part during closing, the button drives the contact seat to slide relative to the shell so that the first buckling part is buckled with the second buckling part, the button drives the second unbuckling part to slide against the first unbuckling part during opening, and the locking piece rotates relative to the shell so that the first buckling part is unbuckled with the second buckling part.

Optionally, the operating device further includes a first elastic member, the first elastic member is sleeved on the rotating shaft rotationally connected with the latch member and the housing, two ends of the first elastic member respectively support against the latch member and the housing, and the first elastic member is used for providing a restoring force for the latch member to rotate relative to the housing.

Optionally, the operating mechanism further includes a second elastic element connected to the button, where the other end of the second elastic element abuts against the contact seat to store energy, or the other end of the second elastic element abuts against the locking element to release energy to force the locking element to be unlocked from the contact seat.

Optionally, the operating mechanism further includes a third elastic element, two ends of the third elastic element respectively support against the contact seat and the housing, and the third elastic element is used for providing a restoring force for sliding of the contact seat relative to the housing.

Optionally, the moving contact includes the contact body and with contact body coupling's contact portion, be provided with the installation cavity in the contact seat, the contact body sliding accommodation in the installation cavity exposes contact portion, contact portion be used for with the stationary contact or separation, be provided with the recess on the contact body, be provided with on the lateral wall of contact seat and run through to the mounting hole in installation cavity, the fastener passes the mounting hole stretches into in the recess in order to inject the moving contact is relative the sliding travel of contact seat.

Optionally, the moving contact further includes a connecting portion connected with one end of the contact body away from the contact portion, the operating mechanism further includes a fourth elastic element, the fourth elastic element is accommodated in the installation cavity, two ends of the fourth elastic element respectively support against the connecting portion and the inner wall of the installation cavity away from the contact portion, and the fourth elastic element is used for providing a pressing force for the moving contact to move towards one side close to the fixed contact.

Optionally, a first guiding part is arranged on the contact seat, a second guiding part is arranged on the shell, and the first guiding part is in sliding connection with the second guiding part so as to enable the contact seat to be in sliding connection with the shell; the button is provided with a first clamping part, the contact seat is provided with a second clamping part, and the first clamping part is clamped with the second clamping part so that the button is clamped with the contact seat.

Optionally, the latch piece is provided with the mating end, still be provided with electromagnetic release in the casing, electromagnetic release's action end orientation the mating end, electromagnetic release is used for promoting according to the brake release signal the latch piece is relative the casing rotates so that the latch piece with the contact seat is unbuckled.

According to a second aspect of the embodiment of the utility model, a circuit breaker is provided, the circuit breaker comprises the operating mechanism and a solid-state switching device arranged in a shell of the operating mechanism, the solid-state switching device comprises a circuit board connected with the operating mechanism in series, a signal collector and a signal processor are arranged on the circuit board, the signal collector collects a brake-separating signal and sends the brake-separating signal to the signal processor, and the signal processor controls the brake-separating of the operating mechanism through the circuit board. The operating mechanism can solve the problem that the operating mechanism in the prior art is complex in structure.

The beneficial effects of the embodiment of the utility model include:

The operating mechanism comprises a shell and a button which is in sliding connection with the shell, wherein a locking piece, a contact seat, a moving contact and a fixed contact are arranged in the shell, the locking piece is rotationally connected with the shell, the contact seat is in sliding connection with the shell, the moving contact is arranged on the contact seat, the fixed contact is fixedly connected with the shell, the button is in sliding connection with the contact seat, the button drives the moving contact to be switched on or switched off with the fixed contact, the locking piece is buckled with the contact seat during switching on, and the locking piece is unbuckled with the contact seat during switching off. The operating mechanism can correspondingly complete the closing action and the opening action of the operating mechanism through controlling the sliding direction of the button relative to the shell, so that the movement form of the operating mechanism is simplified; in addition, the operating mechanism ensures that the circuit breaker can be in a stable closing state through the locking of the locking piece to the sliding of the contact seat relative to the shell, and improves the stability and reliability of the circuit breaker; in addition, the operating mechanism reduces parts of the operating mechanism, simplifies the product structure of the operating mechanism, reduces the occupied space of the operating mechanism, and is beneficial to realizing the design requirement of miniaturization of the circuit breaker.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an operating mechanism according to an embodiment of the present utility model when the operating mechanism is closed;

FIG. 2 is a schematic diagram of an operating mechanism according to an embodiment of the present utility model;

Fig. 3 is a schematic perspective view of an operating mechanism according to an embodiment of the present utility model;

FIG. 4 is a front view of FIG. 3;

fig. 5 is a schematic structural diagram of a housing according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a button according to an embodiment of the present utility model;

fig. 7 is a schematic structural diagram of a contact base according to an embodiment of the present utility model;

FIG. 8 is a second schematic diagram of a contact base according to an embodiment of the present utility model;

FIG. 9 is a schematic structural diagram of a latch according to an embodiment of the present utility model;

FIG. 10 is a second schematic structural view of a locking device according to an embodiment of the present utility model;

Fig. 11 is a schematic diagram of the first tripping portion and the second tripping portion according to the embodiment of the present utility model when they are closed;

FIG. 12 is a schematic diagram illustrating the cooperation of the first tripping portion and the second tripping portion during the opening process according to the embodiment of the present utility model;

FIG. 13 is a schematic diagram illustrating the cooperation of the first tripping portion and the second tripping portion during opening according to an embodiment of the present utility model;

fig. 14 is a schematic structural diagram of a moving contact according to an embodiment of the present utility model;

FIG. 15 is a schematic structural view of an operating mechanism according to another embodiment of the present utility model;

Fig. 16 is a front view of fig. 15;

fig. 17 is a schematic structural diagram of a circuit breaker according to an embodiment of the present utility model.

Icon: a 100-circuit breaker; 10-an operating mechanism; 11-a housing; 111-a second guide; 12-button; 121-a second trip portion; 122-a first clamping portion; 13-a catch piece; 13A-a rotation axis; 131-a first fastening portion; 132-a first trip; 1321—a holding end; 133-mating end; 14-a contact base; 141-a second fastening portion; 142-mounting cavity; 143-mounting holes; 144-first guide; 145-a second clamping portion; 146-triggering part; 15-a moving contact; 151-contact body; 1511-grooves; 152-contacts; 153-connection; 16-a fixed contact; 171-a first elastic member; 172-a second elastic member; 173-a third elastic member; 174-fourth elastic member; 18-an electromagnetic release; 181-a yoke frame; 182-moving iron core; 183-stationary core; 184-current coil; 185-voltage coil; 186-ejector rod; 31-a circuit board; 32-a signal processor.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be connected between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1 to 17, an operating mechanism 10 is provided in an embodiment of the present application, and includes a housing 11 and a button 12 slidably connected with the housing 11, wherein a latch member 13, a contact seat 14, a moving contact 15 and a fixed contact 16 are disposed in the housing 11, the latch member 13 is rotationally connected with the housing 11, the contact seat 14 is slidably connected with the housing 11, the moving contact 15 is mounted on the contact seat 14, the fixed contact 16 is fixedly connected with the housing 11, the button 12 is slidably connected with the contact seat 14, the button 12 drives the moving contact 15 to close or open with the fixed contact 16, the latch member 13 is buckled with the contact seat 14 during closing, and the latch member 13 is unbuckled with the contact seat 14 during opening. The operating mechanism 10 can solve the problem of complex structure of the operating mechanism 10 in the prior art.

As shown in fig. 1 to 4, the operating mechanism 10 includes a housing 11, a button 12, a moving contact 15, and a fixed contact 16, a predetermined track is disposed in the housing 11, the button 12 is slidably connected with the housing 11, the moving contact 15 is in transmission connection with the button 12, and the fixed contact 16 is fixedly connected with the housing 11. In the closing process, an operator can press the button 12 inwards to enable the button 12 to slide towards the inside of the shell 11 along a preset track, and drive the moving contact 15 to move towards one side close to the fixed contact 16 until the moving contact contacts the fixed contact 16, so that the operating mechanism 10 completes the closing action, and the circuit breaker 100 is in a closing state; in the opening process, an operator can pull the button 12 outwards to enable the button 12 to slide towards the outside of the shell 11 along a preset track, and drive the moving contact 15 to move towards the side far away from the fixed contact 16 to be separated from the fixed contact 16, so that the operating mechanism 10 completes the opening action, and the circuit breaker 100 is in an opening state.

As shown in fig. 1 to 4, the operating mechanism 10 further includes a latch member 13 and a contact seat 14, the button 12 is in transmission connection with the moving contact 15 through the latch member 13 and the contact seat 14, wherein the latch member 13 is rotationally connected with the housing 11, the contact seat 14 is slidingly connected with the housing 11, the button 12 is slidingly connected with the contact seat 14, and the moving contact 15 is mounted on the contact seat 14. In the closing process, the button 12 pushes the contact base 14 to slide along a preset track, and drives the moving contact 15 to gradually approach the fixed contact 16 until the contact base 14 reaches the maximum closing position, and the moving contact 15 reaches the closing position, and at the moment, the sliding of the contact base 14 relative to the shell 11 can be locked through the buckling of the buckling piece 13 and the contact base 14, so that the positions of the contact base 14 and the moving contact 15 relative to the shell 11 are locked, the moving contact 15 is always in the closing position and keeps stable and reliable contact with the fixed contact 16, and the circuit breaker 100 is ensured to be in a stable closing state; in the opening process, the locking piece 13 and the contact seat 14 are released, so that the contact seat 14 can slide from the maximum closing position to the opening preset position under the action of external force, and the moving contact 15 is driven to reach the opening position, so that the operating mechanism 10 finishes the opening action, and the circuit breaker 100 is in the opening state.

It should be noted that, for the sake of understanding the specific structure of the operating mechanism 10, fig. 1 and 2 are schematic diagrams of the structure of the removed portion of the housing 11, and fig. 3 and 4 are schematic diagrams of the structure of the removed housing 11. Illustratively, in the present embodiment, the housing 11 includes a first sub-housing 11 and a second sub-housing 11 that are disposed opposite to each other, and the first sub-housing 11 and the second sub-housing 11 are fastened to each other to form a housing chamber for mounting the components of the button 12, the latch 13, the contact holder 14, the moving contact 15, the fixed contact 16, and the like. Wherein, the buckling direction of the first sub-housing 11 and the second sub-housing 11 is perpendicular to the sliding direction of the button 12 relative to the housing 11.

Compared with the operating mechanism 10 in the prior art, the operating mechanism 10 provided by the embodiment of the application can correspondingly complete the closing action and the opening action of the operating mechanism 10 by controlling the sliding direction of the button 12 relative to the shell 11, thereby simplifying the movement form of the operating mechanism 10; in addition, according to the operating mechanism 10 provided by the embodiment of the application, the circuit breaker 100 can be ensured to be in a stable closing state by locking the sliding of the contact base 14 relative to the shell 11 by the locking piece 13, so that the stability and the reliability of the circuit breaker 100 are improved; in addition, the operating mechanism 10 provided by the embodiment of the application reduces the parts of the operating mechanism 10, simplifies the product structure of the operating mechanism 10, reduces the occupied space of the operating mechanism 10, and is beneficial to realizing the design requirement of miniaturization of the circuit breaker 100.

Alternatively, as shown in fig. 9 and 10, the latch 13 is provided with a first buckling portion 131 and a first unbuckling portion 132, as shown in fig. 7 and 8, the contact base 14 is provided with a second buckling portion 141, as shown in fig. 6, the button 12 is provided with a second unbuckling portion 121, as shown in fig. 11 to 13, the second unbuckling portion 121 abuts against the first unbuckling portion 132 during closing, the button 12 drives the contact base 14 to slide relative to the housing 11 so as to enable the first buckling portion 131 to buckle with the second buckling portion 141, the button 12 drives the second unbuckling portion 121 to slide against the first unbuckling portion 132 during opening, and the latch 13 rotates relative to the housing 11 so as to enable the first buckling portion 131 to unbuckle with the second buckling portion 141.

The latch 13 is engaged with the contact base 14 during closing, so that the contact base 14 is locked to slide relative to the housing 11 by the latch 13, so that the positions of the contact base 14 and the moving contact 15 are fixed relative to the housing 11, and for this purpose, the latch 13 is provided with a first engaging portion 131, the contact base 14 is provided with a second engaging portion 141, and the first engaging portion 131 is engaged with the second engaging portion 141 during closing. In order to ensure that the first buckling part 131 and the second buckling part 141 can be aligned when the locking piece 13 is in closing, the first unlocking part 132 is arranged on the locking piece 13, and the second unlocking part 121 is arranged on the button 12, as shown in fig. 11, in the closing process, the second unlocking part 121 is always abutted against the first unlocking part 132, so that the locking piece 13 is locked to rotate relative to the shell 11 through the button 12, and the first buckling part 131 and the second buckling part 141 can be aligned to realize buckling; as shown in fig. 12 and 13, in the opening process, the button 12 slides towards the outside of the housing 11, so as to drive the second releasing portion 121 to slide against the first releasing portion 132 (i.e. maintain the abutting relationship but the specific abutting position is continuously changed towards the side close to the button 12), so that the locking of the rotation of the locking member 13 can be released, at this time, the locking member 13 can continuously rotate relative to the housing 11 until the second releasing portion 121 abuts against the abutting end 1321 of the first releasing portion 132 away from the rotation center of the locking member 13, and the first fastening portion 131 and the second fastening portion 141 can be separated to realize releasing.

In this embodiment, the first fastening portion 131 is a hook-shaped protrusion, and the second fastening portion 141 is an arc-shaped protrusion, and the hook-shaped protrusion can be hooked on the arc-shaped protrusion to fasten the first fastening portion 131 and the second fastening portion 141. Of course, in other embodiments, the first fastening portion 131 and the second fastening portion 141 may have other structures, and those skilled in the art should be able to reasonably select and design according to practical situations, which are not limited herein.

In this embodiment, the first and second unbuckles 132 and 121 are projections having mutually matching inclined surfaces, so that when the button 12 slides relative to the housing 11, the first and second unbuckles 132 and 121 can slide relatively along the inclined surfaces of the projections, and when the first and second unbuckles 132 and 121 approach each other, the first and second unbuckles 132 and 121 can always abut, and when the first and second unbuckles 132 and 121 are away from each other, the first and second unbuckles 132 and 121 can slide against each other. Of course, in other embodiments, the first trip portion 132 and the second trip portion 121 may have other structures, and those skilled in the art should be able to reasonably select and design according to practical situations, which are not limited herein.

In addition, the second trip portion 121 may be provided at any position of the button 12 other than the operation end exposed outside the housing 11, and the position of the first trip portion 132 needs to correspond to the position of the second trip portion 121, and those skilled in the art should be able to make reasonable selections and designs according to actual circumstances, without being particularly limited thereto.

Alternatively, as shown in fig. 1 to 4, the operating mechanism 10 further includes a first elastic member 171, the first elastic member 171 is sleeved on the rotating shaft 13A rotatably connected to the latch member 13 and the housing 11, two ends of the first elastic member 171 respectively abut against the latch member 13 and the housing 11, and the first elastic member 171 is configured to provide a restoring force for rotation of the latch member 13 relative to the housing 11. The first elastic member 171 may be a spring or a shrapnel.

In addition, during the opening process, the latch 13 rotates counterclockwise around the rotation axis 13A relative to the housing 11, the first releasing portion 132 and the second releasing portion 121 slide to abut against each other, so that when the operating mechanism 10 performs the closing operation, the abutting positions of the first releasing portion 132 and the second releasing portion 121 can be reset, so that the rotation of the latch 13 relative to the housing 11 is locked by the button 12, so that the first latch 131 and the second latch 141 can be aligned to achieve the latching, in this embodiment, the operating mechanism 10 further includes a first elastic member 171, the first elastic member 171 is sleeved on the rotation axis 13A where the latch 13 is rotationally connected to the housing 11, both ends of the first elastic member 171 abut against the latch 13 and the housing 11 respectively, the first elastic member 171 stores energy during the closing operation, and the first elastic member 171 can release energy to force the latch 13 to rotate clockwise around the rotation axis 13A relative to the housing 11 during the opening operation, so that the first elastic member 171 can provide a reset force to the rotation of the latch 13 relative to the housing 11.

Alternatively, in another embodiment, as shown in fig. 15 and 16, the operating mechanism 10 further includes a second elastic member 172 connected to the button 12, where the other end of the second elastic member 172 abuts against the contact seat 14 to store energy, or where the other end of the second elastic member 172 abuts against the locking member 13 to release energy to force the locking member 13 to be released from the contact seat 14. The second elastic member 172 may be a spring or a shrapnel.

It should be noted that, in the opening process, the button 12 drives one end of the second elastic member 172 to slide along a preset idle stroke, in this process, the other end of the second elastic member 172 is firstly abutted against the contact seat 14 to store energy, and as the button 12 continues to slide, the other end of the second elastic member 172 is switched to be abutted against the latch member 13, at this time, the second elastic member 172 releases energy to force the latch member 13 to rotate relative to the housing 11 to open, so that the sliding lock of the contact seat 14 can be released, and therefore, the contact seat 14 can slide from the maximum closing position to the opening preset position under the action of an external force, and in this process, the other end of the second elastic member 172 is switched to be abutted against the contact seat 14 again until the contact seat 14 reaches the opening preset position.

Optionally, as shown in fig. 2 and 3, the operating mechanism 10 further includes a third elastic member 173, two ends of the third elastic member 173 respectively abut against the contact base 14 and the housing 11, and the third elastic member 173 is configured to provide a restoring force for sliding the contact base 14 relative to the housing 11.

It should be noted that, during the closing process, the button 12 pushes the contact base 14 to slide relative to the housing 11, the third elastic member 173 continuously accumulates elastic potential energy, and during the opening process, when the latch 13 releases the sliding lock of the contact base 14, the third elastic member 173 releases energy to force the contact base 14 to slide relative to the housing 11, so that the contact base 14 can slide from the maximum closing position to the opening preset position under the action of the third elastic member 173. The third elastic member 173 may be a spring or a shrapnel.

Alternatively, as shown in fig. 14, the moving contact 15 includes a contact body 151 and a contact portion 152 connected to the contact body 151, a mounting cavity 142 is provided in the contact base 14, the contact body 151 is slidably received in the mounting cavity 142 and exposes the contact portion 152, the contact portion 152 is used for contacting or separating from the fixed contact 16, a groove 1511 is provided on the contact body 151, a mounting hole 143 penetrating into the mounting cavity 142 is provided on a side wall of the contact base 14, and a fastener penetrates through the mounting hole 143 and extends into the groove 1511 to limit a sliding stroke of the moving contact 15 relative to the contact base 14, so as to avoid the moving contact 15 from falling out of the mounting cavity 142. Wherein the fastener may be a rivet and the recess 1511 may be a waist-shaped slot such that the shape of opposite ends of the waist-shaped slot matches the shape of the fastener.

Further, as shown in fig. 14, the moving contact 15 further includes a connection portion 153 connected to an end of the contact body 151 away from the contact portion 152, the operating mechanism 10 further includes a fourth elastic member 174, the fourth elastic member 174 is accommodated in the mounting cavity 142, two ends of the fourth elastic member 174 respectively abut against the connection portion 153 and an inner wall of the mounting cavity 142 away from the contact portion 152, and the fourth elastic member 174 is used for providing a pressing force for moving the moving contact 15 towards a side close to the fixed contact 16. The fourth elastic member 174 may be a spring or a shrapnel.

As shown in fig. 1 to 4, in order to further improve the contact stability between the moving contact 15 and the fixed contact 16 when the operating mechanism 10 is switched on, the operating mechanism 10 further includes a fourth elastic member 174, where the fourth elastic member 174 is accommodated in the mounting cavity 142, and two ends of the fourth elastic member 174 respectively abut against the connecting portion 153 and an inner wall of the mounting cavity 142 away from the contact portion 152, so that the moving contact 15 has a movement tendency toward a side close to the fixed contact 16, and when the moving contact 15 contacts the fixed contact 16, the fourth elastic member 174 can provide a pressing force to improve the contact stability between the moving contact 15 and the fixed contact 16.

Alternatively, as shown in fig. 5, 7 and 8, the contact base 14 is provided with a first guiding portion 144, the housing 11 is provided with a second guiding portion 111, and the first guiding portion 144 is slidably connected to the second guiding portion 111, so that the contact base 14 is slidably connected to the housing 11. Illustratively, in the present embodiment, the first guiding portion 144 is a rib, and the second guiding portion 111 is a chute; of course, in other embodiments, the first guiding portion 144 may be a chute, and the second guiding portion 111 may be a rib.

Alternatively, as shown in fig. 6 to 8, the button 12 is provided with a first clamping portion 122, and the contact base 14 is provided with a second clamping portion 145, where the first clamping portion 122 is clamped with the second clamping portion 145, so that the button 12 is clamped with the contact base 14. Illustratively, in the present embodiment, the first clamping portion 122 is a buckle, and the second clamping portion 145 is a clamping groove; of course, in other embodiments, the first engaging portion 122 may be a slot, and the second engaging portion 145 may be a buckle.

It should be noted that, as shown in fig. 1, in the closing process, the first clamping portion 122 slides to a side close to the fixed contact 16 relative to the second clamping portion 145, and at this time, the button 12 abuts against the contact seat 14, so that the button 12 can push the contact seat 14 to move towards a side close to the fixed contact 16; as shown in fig. 2, during the opening process, the first clamping portion 122 slides to a side far away from the fixed contact 16 relative to the second clamping portion 145, and at this time, the button 12 abuts against the contact base 14, so that the button 12 can push the contact base 14 to move towards the side far away from the fixed contact 16. In this embodiment, the buckle is slidably sleeved in the clamping groove, and the buckle slides to the rightmost end in the illustrated position of the clamping groove when the switch is closed, and the buckle slides to the leftmost end in the illustrated position of the clamping groove when the switch is opened.

As for the specific value of the preset idle stroke of the sliding movement of the button 12 relative to the contact base 14, those skilled in the art should be able to reasonably select and design according to the actual situation, only by making the second releasing portion 121 and the first releasing portion 132 slide to abut against until the button 12 pushes the latch member 13 open (as shown in fig. 12) during the opening process, after the latch member 13 is pushed open, the third elastic member 173 releases energy to push the contact base 14 and the button 13 to move towards the side far from the fixed contact 16, and the latch member 13 can rotate relative to the housing 11 until the second releasing portion 121 and the first releasing portion 132 abut against the abutting end 1321 far from the rotation center of the latch member 13 (as shown in fig. 13).

Optionally, as shown in fig. 1 to 4, the latch 13 is provided with a mating end 133, the housing 11 is further provided with an electromagnetic release 18, an acting end of the electromagnetic release 18 faces the mating end 133, and the electromagnetic release 18 is configured to push the latch 13 to rotate relative to the housing 11 according to a release signal so as to release the latch 13 from the contact base 14. Thus, the operating mechanism 10 can realize manual opening through the button 12 and electric opening through the electromagnetic release 18, thereby ensuring the reliability of the circuit breaker 100.

Specifically, as shown in fig. 4, the electromagnetic release 18 includes a yoke frame 181, in which a movable iron core 182, an iron core spring and a stationary iron core 183 are sequentially disposed in the yoke frame 181, a coil is wound around the outer periphery of the stationary iron core 183, the stationary iron core 183 is fixedly connected with the yoke frame 181, a push rod 186 is fixedly disposed at the center of the movable iron core 182, and the push rod 186 sequentially passes through the iron core spring, the stationary iron core 183 and the yoke frame 181 to expose an active end. The coils may include a current coil 184 and a voltage coil 185, where the voltage coil 185 is controlled by solid electronic, and plays a role of a default trip protection circuit, and when the solid protection fails abnormally, the current coil 184 may generate a larger trip force, so that the trip mechanism acts to disconnect the circuit. Another function of the current coil 184 is to limit the current in the circuit from rising rapidly by its own characteristics, thus protecting the solid state electronic switch from driving.

As shown in fig. 17, the embodiment of the present application further provides a circuit breaker 100, which includes the above-mentioned operating mechanism 10, and a solid-state switching device disposed in the housing 11 of the operating mechanism 10, where the solid-state switching device includes a circuit board 31 connected in series with the operating mechanism 10, a signal collector and a signal processor 32 are disposed on the circuit board 31, the signal collector collects a brake-off signal and sends the brake-off signal to the signal processor 32, and the signal processor 32 controls the brake-off of the operating mechanism 10 through the circuit board 31. The signal collector can be a micro switch, and is matched with the micro switch, the trigger part 146 is arranged on the contact seat 14, and when the trigger part 146 contacts with the micro switch, the signal collector collects that the mechanical switch-on is successful, so that the protection function of the solid-state electronic switch can be started.

Since the structure and the advantageous effects of the operating mechanism 10 have been described in detail in the foregoing embodiments, they are not described in detail herein. In addition, the circuit breaker 100 in the embodiment of the application further comprises a signal collector, a signal processor 32, a circuit board 31 and the like, so that the protection characteristic of the solid-state electronic switch is realized, the signal control of the circuit breaker 100 is realized, the purpose that the circuit does not erode the contacts of the circuit breaker 100 when fault current exists is achieved, the arc extinguishing performance of the circuit breaker 100 is improved, and the service life of the circuit breaker 100 is prolonged.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.

Claims (10)

1. The utility model provides an operating device, its characterized in that, include casing (11) and with casing (11) sliding connection's button (12), be provided with in casing (11) hasp piece (13), contact seat (14), moving contact (15) and stationary contact (16), hasp piece (13) with casing (11) rotate and are connected, contact seat (14) with casing (11) sliding connection, moving contact (15) are installed on contact seat (14), stationary contact (16) with casing (11) fixed connection, button (12) with contact seat (14) sliding connection, button (12) drive moving contact (15) with stationary contact (16) are closed or are separated the floodgate, during the closing time hasp piece (13) with contact seat (14) lock, during the separation time hasp piece (13) with contact seat (14) are unbuckled.

2. The operating mechanism according to claim 1, wherein a first buckling part (131) and a first unbuckling part (132) are arranged on the locking piece (13), a second buckling part (141) is arranged on the contact base (14), a second unbuckling part (121) is arranged on the button (12), the second unbuckling part (121) is propped against the first unbuckling part (132) during closing, the button (12) drives the contact base (14) to slide relative to the shell (11) so that the first buckling part (131) is buckled with the second buckling part (141), the button (12) drives the second unbuckling part (121) to slide against the first unbuckling part (132) during opening, and the locking piece (13) rotates relative to the shell (11) so that the first buckling part (131) is unbuckled with the second buckling part (141).

3. The operating mechanism according to claim 1, wherein the operating mechanism (10) further comprises a first elastic member (171), the first elastic member (171) is sleeved on a rotating shaft (13A) rotationally connected with the latch member (13) and the housing (11), two ends of the first elastic member (171) respectively abut against the latch member (13) and the housing (11), and the first elastic member (171) is used for providing a restoring force for rotation of the latch member (13) relative to the housing (11).

4. The operating mechanism according to claim 1, wherein the operating mechanism (10) further comprises a second elastic member (172) connected with the button (12), the other end of the second elastic member (172) is propped against the contact base (14) to store energy, or the other end of the second elastic member (172) is propped against the locking member (13) to release energy to force the locking member (13) to be unlocked from the contact base (14).

5. The operating mechanism according to claim 1, wherein the operating mechanism (10) further comprises a third elastic member (173), two ends of the third elastic member (173) respectively abut against the contact base (14) and the housing (11), and the third elastic member (173) is used for providing a restoring force for sliding the contact base (14) relative to the housing (11).

6. The operating mechanism according to claim 1, wherein the moving contact (15) comprises a contact body (151) and a contact portion (152) connected with the contact body (151), a mounting cavity (142) is arranged in the contact base (14), the contact body (151) is slidingly accommodated in the mounting cavity (142) and exposes out of the contact portion (152), the contact portion (152) is used for contacting with or separating from the fixed contact (16), a groove (1511) is arranged on the contact body (151), a mounting hole (143) penetrating into the mounting cavity (142) is arranged on the side wall of the contact base (14), and a fastener penetrates through the mounting hole (143) and stretches into the groove (1511) to limit the sliding stroke of the moving contact (15) relative to the contact base (14).

7. The operating mechanism according to claim 6, wherein the moving contact (15) further comprises a connecting portion (153) connected to an end of the contact body (151) away from the contact portion (152), the operating mechanism (10) further comprises a fourth elastic member (174), the fourth elastic member (174) is accommodated in the installation cavity (142), two ends of the fourth elastic member (174) respectively abut against the connecting portion (153) and an inner wall of the installation cavity (142) away from the contact portion (152), and the fourth elastic member (174) is used for providing a pressing force for the moving contact (15) to move towards a side close to the fixed contact (16).

8. The operating mechanism according to claim 1, characterized in that a first guiding portion (144) is provided on the contact base (14), a second guiding portion (111) is provided on the housing (11), and the first guiding portion (144) is slidably connected with the second guiding portion (111) so as to slidably connect the contact base (14) with the housing (11); the button (12) is provided with a first clamping part (122), the contact base (14) is provided with a second clamping part (145), and the first clamping part (122) is clamped with the second clamping part (145) so that the button (12) is clamped with the contact base (14).

9. The operating mechanism according to claim 1, wherein the latch member (13) is provided with a mating end (133), an electromagnetic release (18) is further disposed in the housing (11), an acting end of the electromagnetic release (18) faces the mating end (133), and the electromagnetic release (18) is configured to push the latch member (13) to rotate relative to the housing (11) according to a release signal so as to release the latch member (13) from the contact base (14).

10. The circuit breaker is characterized by comprising the operating mechanism (10) as claimed in claim 9 and a solid-state switching device arranged in a shell (11) of the operating mechanism (10), wherein the solid-state switching device comprises a circuit board (31) connected with the operating mechanism (10) in series, a signal collector and a signal processor (32) are arranged on the circuit board (31), the signal collector collects a brake-separating signal and sends the brake-separating signal to the signal processor (32), and the signal processor (32) controls the brake-separating of the operating mechanism (10) through the circuit board (31).