CN222995332U - operating system - Google Patents

Abstract

The utility model relates to the field of low-voltage electrical appliances, and specifically to an operating system, which comprises an operating member, an electromagnetic system, a moving contact mechanism, a control system and a trigger mechanism, wherein the electromagnetic system comprises a magnetic generating component and a push rod, the push rod is transmission-connected to the moving contact mechanism, the trigger mechanism is triggered by the operating member moving to the closing position and outputs a first closing signal to the control system, after receiving the first closing signal, the control system controls the electromagnetic system to operate so that the push rod drives the moving contact mechanism to move to the closing position, and when the operating member moves to the opening position, the moving contact mechanism is driven to move to the disconnecting position through the electromagnetic system; the operating system has a simple structure and occupies a small space.

Description

Operating system

Technical Field

The utility model relates to the field of piezoelectric devices, in particular to an operating system.

Background

The basic structure of the existing circuit breaker, in particular to an intelligent circuit breaker, generally comprises a short-circuit protection module, an overload protection module, an operating mechanism and an electric operation module, wherein the short-circuit protection module and the overload protection module are generally arranged according to different current specifications of the circuit breaker, the electric operation module realizes remote operation in a mode of matching a motor and a gear, and the operating mechanism of the existing circuit breaker has the problems of complex structure and large volume. In addition, the existing circuit breaker has complex structure and large occupied space for realizing the short circuit and overload protection functions. In addition, the operating mechanism of the existing circuit breaker is complicated to assemble.

Disclosure of Invention

The utility model aims to overcome at least one defect in the prior art and provides an operating system which is simple in structure and small in occupied space.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

The operating system comprises an operating piece, an electromagnetic system, a moving contact mechanism and a control system, wherein the operating piece is arranged in a reciprocating manner and provided with a closing position and a separating position, the moving contact mechanism is provided with a closing position and an opening position, and the control system is in control connection with the electromagnetic system;

The operating system further comprises a trigger mechanism connected with the control system, the trigger mechanism is triggered by the operating piece moving to a closing position to output a first closing signal to the control system, the control system controls the electromagnetic system to work after receiving the first closing signal to enable the ejector rod to drive the movable contact mechanism to move to a closing position, and the electromagnetic system drives the movable contact mechanism to move to an opening position when the operating piece moves to a separating position.

Further, in the process that the operating piece moves to the closing position, the ejector rod keeps static.

Furthermore, the two ends of the ejector rod are respectively connected with the operating piece and the movable contact mechanism in a transmission way, and the ejector rod is driven to move by the operating piece moving to the opening position, so that the movable contact mechanism is driven to move to the opening position.

Further, the operating member comprises an operating member main body and an operating member connecting part which are operated by external force, and one end of the ejector rod is connected with the operating member connecting part and is arranged in a relative movement manner with the operating member connecting part along the moving direction of the operating member.

The connecting part of the operating piece comprises a connecting part cavity, the ejector rod comprises a front rod body and a front connecting cap, the front connecting cap comprises a front cap peak, the front cap peak protrudes out of one side of the front rod body along the radial direction of the front rod body, the front connecting cap is movably arranged in the connecting part cavity, the side wall of the connecting part cavity is in transmission fit with the front cap peak, and when the operating piece moves from a closing position to a separating position, the ejector rod is driven to move so as to drive the moving contact mechanism to move through the ejector rod, so that the contact system is disconnected.

Further, the operating system further comprises a rear connecting rod, one end of the ejector rod is connected with the rear connecting rod and moves synchronously, and the rear connecting rod is hinged with a contact support of the moving contact mechanism.

The electromagnetic system further comprises a movable iron core which is arranged in the middle of the coil assembly in a sliding mode, the movable iron core is connected with the ejector rod and is arranged in a synchronous moving mode, two ends of the ejector rod protrude out of two axial sides of the coil assembly respectively, the electromagnetic system further comprises a first static iron core and a second static iron core which are arranged in an opposite mode in the axial direction of the coil assembly, the ejector rod is arranged at a first position when one end of the movable iron core is attracted with the first static iron core, and the ejector rod is arranged at a second position when the movable iron core is attracted with the second static iron core.

Further, the ejector rod comprises a front ejector rod and a rear ejector rod, one end of the front ejector rod is inserted into the movable iron core, the other end of the front ejector rod is connected with the operating piece in a transmission manner, and one end of the rear ejector rod is inserted into the movable iron core, and the other end of the rear ejector rod is connected with the movable contact mechanism in a transmission manner.

The control system is used for controlling the electromagnetic system to work when overload and/or short-circuit current is detected by the detection device, so that the ejector rod drives the movable contact mechanism to move to the opening position.

Further, the detection device is a manganese copper shunt connected with the moving contact mechanism in series, or the detection device is a transformer coupled with the moving contact mechanism.

Further, the triggering mechanism is a micro switch.

Further, the operating system further comprises an operating member return spring, and the operating member return spring acts on the operating member to enable the operating member to move towards the opening position.

According to the operating system, the control system and the electromagnetic system realize electric switching-on and switching-off operation, the operating piece, the trigger mechanism, the control system and the electromagnetic system realize manual switching-on operation, and the operating system is simple in structure, small in occupied space, short in operation transmission path and good in reliability.

In addition, the electromagnetic system is used as a power mechanism for driving the contact system to be closed and opened and is also used as a mechanism for realizing overload and/or short-circuit protection, compared with the existing circuit breaker, a bimetal element for realizing overload protection and/or an electromagnetic release for realizing short-circuit protection can be omitted, the number of components of the circuit breaker is favorably reduced, the structure of the circuit breaker is simplified, a larger space is provided for the layout of each component of the circuit breaker, and the overall size specification of the circuit breaker is favorably reduced.

In addition, the connecting structure of the operating piece connecting part and the top rod is simple, assembly operation difficulty is reduced, and assembly efficiency is improved.

Drawings

Fig. 1 is a schematic structural view of the circuit breaker of the present utility model, at least showing the structure of a case;

FIG. 2 is a projection view of the circuit breaker of the present utility model showing the configuration of the operating system;

FIG. 3 is a schematic diagram of the operating system of the present utility model;

FIG. 4 is an exploded view of the operating system of the present utility model;

fig. 5 is a cross-sectional view of the operating system of the present utility model, showing the process of the operating system performing a closing operation.

Description of the reference numerals

The device comprises a shell 1, an installation guide structure 1-1, a first jack 1-20, a second jack 1-21, a signal jack 1-3, a signal window 1-4, a third jack 1-50, a fourth jack 1-51 and an operating piece installation hole 1-6;

An operating element 2, an operating element main body 2b, an operating element connecting part 2c, a connecting part jack 2-0c, a connecting part cavity 2-1c, an operating element triggering part 2-0c, an operating element matching part 2p, an indicating hole 2-1, a mounting cavity 2-2 and an operating element shaft groove 2-3;

The device comprises an operating mechanism 3, an electromagnetic system 3-0, a magnetism generating component 3-0m, a coil component 3-01, a movable iron core 3-02, a magnetic yoke 3-03, a permanent magnet 3-04, a push rod 3-05, a front push rod 3-050, a front rod body 3-0500, a front connecting cap 3-0501, a rear push rod 3-051, a rear rod body 3-0510, a rear connecting cap 3-0511, a rear connecting rod 3-2, a rear connecting rod cavity 3-20, a rear connecting rod jack 3-21, a rear connecting rod connecting hole 3-22 and a rear connecting shaft 3-32;

The contact system 4, the moving contact mechanism 4-1, the contact support 4-10, the support connecting hole 4-100, the moving contact 4-11, the moving contact shaft 4-12 and the fixed contact 4-2;

A third terminal 5-0, a fourth terminal 5-1;

An arc extinguishing system 6;

A sampling device 7;

A first terminal 8-0, a second terminal 8-1;

A secondary loop structure 9;

A first sampling terminal 10-0, a second sampling terminal 10-1;

a control system 11, a circuit board 11p, a first sampling terminal 11-0, and a second sampling terminal 11-1;

A signal terminal 12;

the indicator comprises an indicator 13, an indicator part 13-0, an indicator connecting part 13-1, an indicator mounting part 13-2, an indicator first driven part 13-30 and an indicator second driven part 13-31;

a first locking piece 14, a first locking protrusion 14-1;

A first locking member return spring 16;

a trigger mechanism 17;

An operating member return spring 18;

An unlocking mechanism 19;

and a connection conductor 20.

Detailed Description

Embodiments of the circuit breaker of the present utility model are further described below with reference to the examples shown in the drawings. The circuit breaker of the present utility model is not limited to the description of the following embodiments.

As shown in fig. 1-2, the circuit breaker of the present utility model comprises a housing 1 and a main circuit structure including an operating member 2 slidably disposed on the housing 1, and an operating mechanism 3, a contact system 4, an arc extinguishing system 6, and a control system 11, each disposed within the housing 1. The operating element 2 has a switching-off position and a switching-on position, and the operating element 2 is switched between the switching-off position and the switching-on position by sliding reciprocally. The operating mechanism 3 comprises an electromagnetic system 3-0, the electromagnetic system 3-0 comprises a magnetism generating component 3-0m and a push rod 3-05 which is movably inserted in the middle of the magnetism generating component 3-0m, and the push rod 3-05 has a first position and a second position and is switched between the first position and the second position through reciprocating movement. The contact system 4 comprises a moving contact mechanism 4-1 and a fixed contact 4-2 which are matched, the moving contact mechanism 4-1 is provided with a closed position and an open position, the moving contact mechanism 4-1 is closed with the fixed contact 4-2 when in the closed position (namely, the contact system 4 is in the closed state), the moving contact mechanism 4-1 is disconnected with the fixed contact 4-2 when in the open position (namely, the contact system 4 is in the open state), one end of the ejector rod 3-05 is in transmission connection with the moving contact mechanism 4-1, and the ejector rod 3-05 is switched between a first position and a second position to drive the moving contact mechanism 4-1 to be switched between the closed position and the open position. The arc extinguishing system 6 is used in cooperation with the contact system 4 for extinguishing an arc generated when the contact system 4 is closed and opened. The operating member 2 is switched between a closing position and a breaking position, and the moving contact mechanism 4-1 is driven by the electromagnetic system 3-0 to be switched between a closing position and an opening position, so that the contact system 4 is switched between a closing state and an opening state, namely, the circuit breaker of the utility model is switched between a closing state and a breaking state. The electromagnetic system 3-0 works under the control of the control system 11 to drive the ejector rod 3-05 to switch between the first position and the second position, so that the ejector rod 3-05 drives the movable contact mechanism 4-1 to switch between the closed position and the open position. Obviously, in the circuit breaker of the utility model, the closing position of the operating member 2, the first position of the ejector rod 3-05, the closing position of the moving contact mechanism 4-1, the closing state of the contact system 4 and the closing state of the circuit breaker correspond to each other, and the opening position of the operating member 2, the second position of the ejector rod 3-05, the opening position of the moving contact mechanism 4-1, the opening state of the contact system and the opening state of the circuit breaker correspond to each other. Furthermore, two ends of the ejector rod 3-05 are respectively in transmission fit with the operating piece 2 and the moving contact mechanism 4-1.

Specifically, as shown in fig. 1-2, two ends of the ejector rod 3-05 are respectively connected with the operating member 2 and the moving contact mechanism 4-1 in a transmission manner, one end of the operating member 2 is inserted into the casing 1, and the other end of the operating member protrudes outside the casing 1 to be operated by external force, and the external force can drive the contact system 4 to be closed and opened (namely, drive the circuit breaker to be closed and opened) by pressing and pulling the operating member 2 through the operating mechanism 3.

Specifically, as shown in fig. 2-5, the moving contact mechanism 4-1 includes a contact support 4-10 and a moving contact 4-11 carried on the contact support 4-10. Further, the movable contact mechanism 4-1 is rotatably arranged through a contact support 4-10. Further, the moving contact mechanism 4-1 further comprises a contact spring (not shown in the drawing of the specification), the contact support 4-1 is rotatably arranged on the shell 1 through a moving contact shaft 4-12, and the moving contact 4-11 and the contact support 4-10 are rotatably arranged relatively, so that after the moving contact 4-11 and the fixed contact 4-2 are allowed to be closed, the contact support 4-10 can continuously rotate for a certain angle relative to the moving contact 4-11, and the contact spring applies acting force to the moving contact 4-11 to enable the acting force to press the fixed contact 4-2 to ensure reliable contact of the moving contact 4-11 and the fixed contact.

As other embodiments, the movable contact mechanism 4-1 is provided integrally movable, and the movable contact mechanism 4-1 is switched between a closed position and an open position by reciprocating movement to be closed and opened with the stationary contact 4-2.

Further, the moving contact mechanism 4-1 is provided with two groups of moving contacts 4-11 which are arranged in parallel, so that the electric repulsive force between the moving contact and the static contact can be effectively reduced, and the current capacity can be improved.

Further, the operating mechanism 3 further comprises a rear connecting rod 3-2, the rear connecting rod 3-2 is connected with one end of a push rod 3-05 of the electromagnetic system 3-0 and hinged with the contact support 4-11, and the axis of the hinged shaft of the rear connecting rod 3-2 and the contact support 4-11 is arranged at intervals in parallel with the rotation axis of the moving contact mechanism 4-1.

Specifically, the rear connecting rod 3-2 is provided with a rear connecting rod cavity 3-20 and a rear connecting rod jack 3-21, the rear connecting rod jack 3-21 is arranged on the side wall (the side wall is close to the magnetism generating component 3-0m of the magnetic holding system 3-0) of the rear connecting rod cavity 3-20, the rear rod body 3-0510 of the ejector rod 3-05 is inserted into the rear connecting rod jack 3-21, the outer diameter of the rear rod body 3-0510 is matched with the inner diameter of the rear connecting rod jack 3-21, the rear connecting cap 3-0511 of the ejector rod 3-05 is arranged in the rear connecting rod cavity 3-20, the outer diameter of the rear connecting cap 3-0511 is larger than the inner diameter of the rear connecting rod jack 3-21 and the outer diameter of the rear rod body 3-0510, the rear connecting rod 3-2 comprises a first rear connecting rod opening and a second rear connecting rod opening, the first rear connecting rod opening is communicated with the rear connecting rod cavity 3-20, the second rear connecting rod opening is communicated with the rear connecting rod body 3-21, the rear connecting rod body 3-0510 enters the rear connecting rod jack 3-21 through the second rear connecting rod opening, and the rear connecting rod cap 3-21, the outer diameter of the rear connecting cap 3-0511 is larger than the inner diameter of the rear connecting rod cavity 3-21, and the rear connecting rod 3-1 enters the rear connecting rod cavity 3-20 through the first rear connecting rod opening.

Specifically, the rear connecting rod 3-2 is hinged with the contact support 4-11 through a rear connecting shaft 3-32. Further, in the rear link 3-2 and the contact support 4-10, the connecting shaft 3-32 is provided on one side to move synchronously therewith, and the other side is provided with a kidney-shaped hole which is engaged with the rear connecting shaft 3-32. Further, the rear connecting rod 3-2 is provided with a rear connecting rod connecting hole 3-22 for inserting and adapting the rear connecting shaft 3-32, the rear connecting shaft 3-32 is inserted in the rear connecting rod connecting hole 3-22 and moves synchronously with the rear connecting rod 3-2, and the contact support 4-11 is provided with a waist-shaped hole which is a support connecting hole 4-100 for inserting the rear connecting shaft 3-32.

As other embodiments, the ejector rod 3-05 may also be directly hinged to the contact support 4-11, and the detailed connection between the two may be implemented by the prior art, which will not be described herein.

Further, the main circuit structure further comprises a sampling device 7 coupled with the contact system 4 (i.e. coupled with the moving contact mechanism 4-1), the sampling device 7 is used for collecting current signals flowing in the contact system 4 and is connected with the control system 11, and when overload and/or short-circuit current flows in the contact system 4 (i.e. the control system 11 detects the overload and/or short-circuit current through the sampling device 7), the control system 11 controls the electromagnetic system 3-0 to work so as to drive the ejector rod 3-05 to move from the first position to the second position, thereby driving the moving contact mechanism 4-1 to move from the closed position to the open position. In the circuit breaker, the electromagnetic system 3-0 is used as a power mechanism for driving the contact system 4 to be closed and opened and is also used as a mechanism for realizing overload and/or short-circuit protection, compared with the existing circuit breaker, a bimetal element for realizing overload protection and/or an electromagnetic tripping mechanism for realizing short-circuit protection can be omitted, the number of components of the circuit breaker is reduced, the structure of the circuit breaker is simplified, a larger space is provided for the layout of the components of the circuit breaker, and the overall size and specification of the circuit breaker are reduced. In the circuit breaker of the utility model, when overload and short-circuit current flow in the contact system 4, the control system 11 controls the electromagnetic system 3-0 to work to drive the ejector rod 3-05 to move from the first position to the second position, namely, the electromagnetic system 3-0 is used as a mechanism for overload protection and short-circuit protection at the same time.

Specifically, the sampling device 7 is a manganese-copper shunt connected in series with the contact system 4 (i.e. connected in series with the moving contact mechanism 4-1), or the sampling device 7 is a transformer coupled with the contact system 4 (i.e. coupled with the moving contact mechanism 4-1), for example, the transformer can be sleeved on a conductor connected in series with the contact system 4 to realize the coupling with the contact system 4. In the circuit breaker of the present utility model, the sampling device 7 is preferably a manganese-copper shunt.

Further, the main circuit structure further comprises a first terminal 8-0 and a third terminal 5-0, and the first terminal 8-0, the contact system 4 and the third terminal 5-0 are sequentially connected in series. Further, the third terminal 5-0, the fixed contact 4-2, the moving contact mechanism 4-1 and the first terminal 8-0 are sequentially connected in series.

Specifically, the first terminal 8-0 is an incoming line terminal of the main loop structure, the third terminal 5-0 is an outgoing line terminal of the main loop structure, the sampling device 7 is a manganese copper shunt, the third terminal 5-0, the fixed contact 4-2, the moving contact mechanism 4-1, the sampling device 7 and the first terminal 8-0 are sequentially connected in series, or the third terminal 5-0, the sampling device 7, the fixed contact 4-2, the moving contact mechanism 4-1 and the first terminal 8-0 are sequentially connected in series.

Further, the main circuit structure further comprises a connecting conductor 20, and the fixed contact 4-2 is electrically connected with the third terminal 5-0 through the connecting conductor 20.

Further, the main circuit structure further includes a signal terminal 12 connected to the control system 11, and the control system 11 communicates with an external device through the signal terminal 12, for example, the control system 11 transmits data through the signal terminal 12 and receives external control signals (a remote switch-on signal and a remote switch-off signal) through the signal terminal 12.

Further, the circuit breaker of the utility model further comprises a secondary loop structure 9 arranged in the shell 1, wherein the secondary loop structure 9 is a through circuit. By "pass-through circuit" is meant a circuit structure in which there is no operable break point in the circuit (e.g., there is no break point realized by a moving contact and a fixed contact, the break point is closed when the moving contact is closed with the fixed contact, and the break point is opened when the moving contact is opened with the fixed contact) and which is connected to an external circuit, i.e., which can be directly turned on. Further, the secondary loop structure 9 includes a second terminal 8-1, a through conductor and a fourth terminal 5-1 connected in series. Further, the through conductor is a conductive plate or a flexible conductor. It should be noted that the circuit breaker of the present utility model may be configured with only a main circuit structure, and the circuit breaker is a single-phase circuit breaker (i.e., a 1P-type circuit breaker), and the circuit breaker of the present utility model may be configured with both a main circuit structure and a sub-circuit structure, and the circuit breaker is a two-phase circuit breaker (i.e., a 1p+1n-type circuit breaker). In addition, a plurality of circuit breakers of the embodiment can be arranged side by side, and an operating piece of the circuit breaker is in linkage fit with an operating system to realize a two-phase (2P type circuit breaker) or a multi-phase (3P or 4P) circuit breaker.

Specifically, the second terminal 8-1 is an incoming terminal of the secondary loop structure 9, and the fourth terminal 5-1 is an outgoing terminal of the secondary loop structure 9.

As shown in fig. 2, the control system 11 includes a wiring board 11p.

Further, the control system 11 further includes a first sampling terminal 11-0 connected to the circuit board 11p, where the first sampling terminal 11-0 is electrically connected to the connection conductor 20 to detect a voltage signal, a current signal and an on-off state of the main circuit structure, so as to determine the current state of the circuit breaker according to the present utility model. Further, the connection conductor 20 is a conductive plate, the first sampling terminal 11-0 is disposed on the circuit board 11p, and the conductive plate is in plug-in fit with the first sampling terminal 11-0.

Further, the control system 11 further includes a second sampling terminal 11-1 electrically connected to the circuit board 11p and the through conductor, respectively, for detecting a voltage signal and a current signal of the secondary loop structure. Further, the through conductor is a conductive plate, the second sampling terminal 11-1 is arranged on the circuit board 11p, and the conductive plate is in plug-in fit with the second sampling terminal 11-1.

As shown in fig. 2-5, the electromagnetic system 3-0 is a magnetic latching system.

Further, the magnetic generating assembly 3-0m comprises a coil assembly 3-01, a magnetic yoke 3-03 and a permanent magnet 3-04, wherein the magnetic yoke 3-03 and the permanent magnet 3-04 are arranged around the coil assembly 3-01, the permanent magnet 3-04 is sleeved outside the middle of the coil assembly 3-01 and is positioned between two electromagnetic coils of the coil assembly 3-01, the electromagnetic system 3-0 further comprises a movable iron core 3-02 which is arranged in the middle of the coil assembly 3-01 in a sliding mode, the movable iron core 3-02 is connected with a push rod 3-05 and moves synchronously, two ends of the push rod 3-05 protrude out of two axial sides of the coil assembly 3-01 respectively, the electromagnetic system 3-0 further comprises a first static iron core and a second static iron core which are arranged oppositely along the axial direction of the coil assembly 3-01, when one end of the movable iron core 3-02 is attracted with the first static iron core, the push rod 3-05 is positioned at a first position, when the movable iron core 3-02 is attracted with the second static iron core, the push rod 3-05 is positioned at a second position, and the push rod 3-05 moves reciprocally along the axial direction of the coil assembly 3-01 and is switched between the first position and the second position. Further, the yoke 3-03 has a square frame structure, and the first and second stationary cores are served by a pair of sidewalls of the yoke 3-03. Further, the magnetic yoke 3-03 comprises a magnetic yoke base and a magnetic yoke end plate, wherein the magnetic yoke base is of a U-shaped structure, the opening end of the U-shaped structure of the magnetic yoke base is connected with the magnetic yoke end plate, and the magnetic yoke end plate and the bottom plate of the U-shaped structure of the magnetic yoke base are used as the first static iron core and the second static iron core.

It should be noted that the electromagnetic system 3-0 may also be a prior art magnetic latching system of other types of structures, for example, a prior art magnetic latching system differs from the present embodiment in that it includes two sets of permanent magnets, which are respectively sleeved outside the two axial ends of the coil assembly 3-01, and the electromagnetic coil of the coil assembly 3-01 is located between the two sets of permanent magnets.

Further, the ejector rod 3-05 comprises a front ejector rod 3-050 and a rear ejector rod 3-051, one end of the front ejector rod 3-050 is inserted into the movable iron core 3-02, the other end of the front ejector rod protrudes out of one axial end of the electromagnetic coil and is in transmission connection with the operating piece 2, one end of the rear ejector rod 3-051 is inserted into the movable iron core 3-02, and the other end of the rear ejector rod protrudes out of the other axial end of the electromagnetic coil and is in transmission connection with the movable contact mechanism 4-1.

Specifically, the front ejector rod 3-05 comprises a front rod body 3-0500 and a front connecting cap 3-0501, one end of the front rod body 3-0500 is connected with the front connecting cap 3-0501, the other end of the front rod body is connected with the movable iron core 3-02 (for example, one axial end of the driven iron core 3-02 is inserted into the movable iron core 3-02), the rear ejector rod 3-051 comprises a rear rod body 3-0510 and a rear connecting cap 3-0511, one end of the rear rod body 3-0510 is connected with the rear connecting cap 3-0511, and the other end of the rear rod body is connected with the movable iron core 3-02 (for example, the other axial end of the driven iron core 3-02 is inserted into the movable iron core 3-02). Further, the front rod body 3-0500 and the front connecting cap 3-0501 are of an integral structure or a detachable split structure, and the rear rod body 3-0510 and the rear connecting cap 3-0511 are of an integral structure or a detachable split structure.

As shown in fig. 2, the circuit breaker of the utility model further comprises a first locking piece 14 and a first locking piece return spring 16, wherein the first locking piece 14 is arranged in the shell 1 in a sliding manner along the direction d3, the first locking piece return spring 16 acts on the first locking piece 14 to enable the first locking piece 14 to have a trend of moving towards the outside of the shell 1, the first locking protrusion 14-1 of the first locking piece 14 protrudes out of the shell 1, the first locking piece 14 moves towards the inside of the shell 1 when the first locking protrusion 14-1 is pressed by an external force (namely, the first locking protrusion 14-1 is driven to move towards the inside of the shell 1 as a whole when the first locking protrusion 14-1 is pressed by the external force), and in a breaking state, the first locking piece 14 is driven by the pulled operating piece 2 to move towards the inside of the shell 1, namely, the operating piece 2 is pulled at a breaking position to drive the first locking piece 14 to move towards the inside of the shell 1.

When the circuit breaker is installed in a circuit breaker installation cabinet (such as a power distribution cabinet, a control cabinet or other electric cabinets) in actual use, the first locking protrusion 14-1 is extruded by the structure of the circuit breaker installation cabinet and moves towards the inside of the shell 1, the appointed position of the circuit breaker installation cabinet is not affected, after the circuit breaker is installed in place in the appointed position, the first locking protrusion 14-1 can be opposite to a first locking hole arranged at the appointed position of the circuit breaker installation cabinet and moves towards the outside of the shell 1 to be inserted into the first locking hole, and therefore the circuit breaker is in limit fit with the circuit breaker installation cabinet, so that the circuit breaker cannot be pulled out of the appointed position of the circuit breaker installation cabinet in a closing state, the personal safety of operators is guaranteed, and the reliability and stability of electricity consumption are guaranteed.

The circuit breaker further comprises a second locking piece (not shown in the figure) rotatably arranged in the shell 1, wherein the second locking piece comprises a second locking protrusion, when the operating piece 2 moves from a switching-off position to a switching-on position, the second locking piece is driven by the operating piece 2 directly or indirectly to rotate positively so as to enable the second locking protrusion to move towards the outside of the shell 1, when the operating piece 2 moves from the switching-on position to the switching-off position, the second locking piece rotates reversely so as to enable the second locking protrusion to move towards the inside of the shell 1, and when the operating piece 2 moves from the switching-on position, the operating piece 2 directly or indirectly limits the reverse rotation of the second locking piece.

The second locking piece is driven by the operating piece 2 to rotate forward to enable the second locking protrusion to move towards the outside of the shell 1 when the operating piece 2 moves from the opening position to the closing position, and the second locking protrusion is used for being in limit fit with the structure of a breaker installation cabinet (such as a power distribution cabinet, a control cabinet or other electric cabinets), so that the breaker is prevented from being installed in the breaker installation cabinet in the closing state, the personal safety of an operator is guaranteed, the breaker is installed in the breaker installation cabinet in the opening state and is installed in place, the second locking protrusion protruding out of the shell 1 is also used for being opposite to and extending into a second locking hole of the breaker installation cabinet, the second locking protrusion is in limit fit with the structure of the breaker installation cabinet, and when the operating piece 2 moves from the opening position, the operating piece 2 is directly or indirectly in limit fit with the second locking piece to prevent the reverse rotation of the breaker installation cabinet, and therefore the safety of the operator is guaranteed, the personal safety of the breaker is guaranteed, the person is guaranteed, and the person can be reliably guaranteed, and when the operating piece 2 moves from the opening position to the second locking protrusion is not matched with the second locking protrusion, and the second locking protrusion is not moved towards the inside of the breaker installation cabinet, so that the second locking protrusion is not moved from the opening position.

Further, the second locking protrusion is a square protrusion, so that the condition that the second locking protrusion is extruded to damage or deform the second locking member when the operating member 2 is in a closing position and the circuit breaker is directly installed in the circuit breaker installation cabinet is avoided.

Further, when the operating member 2 is moved from the closing position to the opening position, the second locking member is directly or indirectly driven by the operating member 2 to rotate reversely, so that the second locking protrusion moves into the housing 1. Further, the second locking member is driven to reversely rotate by the operating member 2 pulled at the opening position, and the first locking member 14 is driven to reversely rotate by the second locking member when the operating member 2 at the opening position is pulled, that is, the operating member 2 simultaneously drives the second locking member to reversely rotate when the operating member 2 is pulled at the opening position, and the second locking member simultaneously drives the first locking member 14 to move inside the housing 1.

As another embodiment, the circuit breaker of the present utility model includes a second locking member return spring (not shown) acting on the second locking member to cause the second locking member to rotate reversely, and when the operating member 2 moves from the closing position to the opening position, the operating member 2 no longer restricts the second locking member from rotating reversely, and the second locking member return spring drives the second locking member to rotate reversely.

The circuit breaker of the present utility model may be provided with the first locking member 14 and the second locking member at the same time, or may be provided with only the first locking member 14 or the first locking member.

As shown in fig. 3-4, the circuit breaker of the utility model further comprises an indicator 13 which is arranged in the middle of the operating member 2 and has a first indication position and a second indication position, wherein the operating member 2 comprises an indication hole 2-1 which is matched with the indicator 13, when the operating member 2 moves to a closing position, the indicator 13 is driven by an indicator driving structure to rotate to the first indication position, when the operating member 2 moves to a separating position, the indicator 13 is driven by an indicator driving structure to rotate to the second indication position, namely, the first indication position and the second indication position of the indicator 13 respectively correspond to the closing position and the separating position of the operating member 2 and respectively correspond to the closing state and the separating state of the circuit breaker of the utility model. The indicator 13 is arranged in the middle of the operating part 2, which is beneficial to improving the structural compactness of the circuit breaker and reducing the overall required installation space of the circuit breaker.

Further, the indicator 13 comprises an indicator part 13-0, an indicator connecting part 13-1, an indicator mounting part 13-2, a closing driven part 13-30 and a separating brake driven part 13-31 which are sequentially connected, wherein the indicator 13-0 is matched with an indicator hole 2-1 of the operator 2, the indicator 13 is rotatably mounted on the operator 2 through the indicator mounting part 13-2, the closing driven part 13-30 and the separating brake driven part 13-31 are sequentially arranged along the rotation direction of the indicator mounting part 13-2, the indicator driving structure is realized by the shell 1 (for example, a driving protrusion is arranged on the shell 1, the driving protrusion is inserted between the closing driven part 13-30 and the separating brake driven part 13-31), when the operator 2 moves to a closing position, the abutting pressure of the closing driven part 13-0 of the indicator driving structure enables the indicator 13 to rotate to a first indicating position, and when the operator 2 moves to a separating brake position, the separating brake driven part 13-1 enables the indicator 13 to rotate to a second indicating position.

In other embodiments, the indicator 13 is not provided with a closing driven part 13-30 and a separating brake driven part 13-31, but is provided with one indicator driven part only on the indicator mounting part 13-2, the corresponding indicator driving structure comprises two indicator driving protrusions, one indicator driving protrusion is a closing driving protrusion and the other indicator driving protrusion is a separating brake driving protrusion, the indicator driven part is inserted between the two indicator driving protrusions, when the operating member 2 moves to a closing position, the closing driving protrusion presses the indicator driven part to enable the indicator 13 to rotate to a first indicating position, and when the operating member 2 moves to a separating brake position, the separating brake driving protrusion presses the indicator driven part to enable the indicator 13 to rotate to a second indicating position.

As shown in fig. 1, the housing 1 further includes an operating member mounting hole 1-6 into which the operating member 2 is inserted, a first insertion hole 1-20 mated with the first terminal 8-0, a second insertion hole 1-21 mated with the second terminal 8-1, a signal insertion hole 1-3 mated with the signal terminal 12, a third insertion hole 1-50 mated with the third terminal 5-0, and a fourth insertion hole 1-51 mated with the fourth terminal 5-1.

As shown in fig. 1, the casing 1 further includes a signal window 1-4, the circuit breaker further includes an indicating element connected to the control system 11, the indicating element is matched with the signal window 1-4, and is used for indicating the state of the circuit breaker, such as a switching-on and switching-off state, a fault state, a communication state, etc., of the circuit breaker, and the signal window 1-4 and the operating member mounting hole 1-6 are disposed on the same side wall of the casing 1. Further, the indicating element is an indicating lamp.

As shown in fig. 2, the housing 1 is further provided with a first opening through which the first locking protrusion 14-1 of the first locking member 14 passes and a second opening through which the second locking protrusion of the second locking member passes. Further, the first opening and the second opening are the same opening.

As shown in fig. 1, the housing 1 further includes a mounting guide structure 1-1 for cooperating with a guide structure on a circuit breaker mounting cabinet (e.g., a power distribution cabinet, a control cabinet or other electrical cabinet) when the circuit breaker of the present utility model is installed in the circuit breaker mounting cabinet, so that the circuit breaker of the present utility model is mounted in place in a correct posture. Further, the installation guide structure 1-1 is a guide rib structure.

As shown in fig. 1-2, one layout of the circuit breaker of the present utility model is shown.

The circuit breaker of the utility model comprises a length direction d2, a width direction d2 and a height direction d3, namely the length direction, the width direction and the height direction of the circuit breaker are respectively a length direction d1, a width direction d2 and a height direction d3, and the length direction d1, the width direction d2 and the height direction d3 are mutually perpendicular. In the length direction d1, the operating member 2 is arranged at one end of the housing 1, the sampling device 7 and the arc extinguishing system 6 are arranged at the other end of the housing 1, the electromagnetic system 3-0 and the contact system 4 are sequentially arranged between the operating member 2 and the arc extinguishing system 6 along the length direction d1, the sampling device 7 and the arc extinguishing system 6 are arranged side by side along the height direction d3, and at least part of the circuit board 11p of the control system 11 and the electromagnetic system 3-0 are arranged side by side along the height direction d 3.

The circuit breaker disclosed by the utility model is compact and reasonable in structure by adopting the layout, is beneficial to reducing the overall specification and size of the circuit breaker, and accords with the development trend of miniaturization of the circuit breaker.

Further, the operating member 2, the electromagnetic system 3-0 and the sampling device 7 are arranged on the same side of the arc extinguishing system 6 in the height direction d3, that is, the operating member 2, the electromagnetic system 3-0 and the sampling device 7 are respectively on the same side of the arc extinguishing system 6 in the height direction d3, and the operating member 2, the electromagnetic system 3-0 and the sampling device 7 are arranged on the same side in the housing 1. The above arrangement facilitates the wiring of the control system 11 with the electromagnetic system 3-0 and the coupling of the sampling device 7 with the contact system 4, further simplifying the internal layout of the circuit breaker of the utility model.

Further, the circuit board 11p and the contact system 4 and/or the arc extinguishing system 6 are arranged side by side along the width direction d2, and in the circuit breaker of the utility model, the circuit board 11p and the contact system 4 and the arc extinguishing system 6 are arranged side by side along the width direction d 2. It should be noted that whether the circuit board 11p is arranged side by side with the contact system 4 and the arc extinguishing system 6 along the width direction d2 may be adjusted according to the specific size of the circuit board 11 p.

Specifically, as shown in fig. 1-2, the vertical direction of fig. 1 is the length direction d1, the inside and outside direction of fig. 1 is the width direction d2, and the left and right direction of fig. 1 is the height direction d3, the operating element 2 is disposed at the upper end of the housing 1, the sampling device 7 and the arc extinguishing system 6 are disposed at the lower end of the housing 1, the sampling device 7 and the arc extinguishing system 6 are disposed side by side in the left and right direction, and at least part of the circuit board 11p of the control system 11 and the electromagnetic system 3-0 are disposed side by side in the left and right direction. The operation piece 2, the electromagnetic system 3-0 and the sampling device 7 are all arranged on the right side of the arc extinguishing system 6, namely, the electromagnetic system 3-0 is positioned on the right side of a circuit board 11p of the control system 11 in the left-right direction, the sampling device 7 is positioned on the right side of the arc extinguishing system 6, and the sampling piece 2, the electromagnetic system 3-0 and the sampling device 7 are all arranged on the right side in the shell 1.

As a further embodiment, the operating element 2, the electromagnetic system 3-0 and the sampling device 7 are all arranged on the left side of the arc extinguishing system 6, i.e. the components inside the circuit breaker are arranged in a mirror image manner to the present embodiment.

Further, the first terminal 8-0 and the second terminal 5-0 are respectively disposed at two ends of the housing 1 along the length direction d1, the third terminal 5-0 and the operating member 2 are disposed side by side along the direction d3, the electromagnetic system 3-0, the arc extinguishing system 6, the sampling device 7 and the control system 11 are located between the operating member 2 and the first terminal 8-0 along the length direction d1, that is, the operating member 2 and the first terminal 8-0 are located at two ends of the housing 1 with the farthest distance along the length direction d1, and the operating member 2, the electromagnetic system 3-0, the sampling device 7 and the first terminal 8-0 are located at the same side of the third terminal 5-0 and the arc extinguishing system 6 along the height direction d 3.

Specifically, as shown in the direction of fig. 2, the operating element 2 and the third terminal 5-0 are both disposed at the uppermost end of the housing 1, the third terminal 5-0 is disposed at the left side of the operating element 2, the first terminal 8-0 is disposed at the lowermost end of the housing 1, the electromagnetic system 3-0 and the sampling device 7 are disposed between the operating element 2 and the first terminal 8-0 from top to bottom, and the third terminal 5-0, the control system 11 and the arc extinguishing system 6 are sequentially disposed from top to bottom.

As other embodiments, in the length direction d1, the first terminal 8-0 and the second terminal 5-1 are disposed at one end of the circuit breaker, and the operating member 2 is disposed at the other end of the circuit breaker, that is, the first terminal 8-0 and the second terminal 5-1 are disposed at the same end of the circuit breaker. Further, the first terminals 8-0 and the second terminals 5-1 are arranged side by side at intervals along the height direction d 3.

Further, the third jack 1-50, the fourth jack 1-51, the signal window 1-4 and the operating element mounting hole 1-6 are all arranged on the same side wall of the shell 1, the third jack 1-50, the fourth jack 1-51 and the signal window 1-4 are arranged in a finished product shape, the fourth jack 1-51 is farthest from the operating element jack 1-6 in the direction d3, the signal window 1-4 is nearest to the operating element jack 1-6, and the fourth jack 1-51 and the signal window 1-4 are positioned on the same side of the third jack 1-50 in the width direction d 2.

Furthermore, the connection conductor 20 of the main circuit structure is arranged side by side with the circuit board 11p of the control system 11 along the width direction d2, the first sampling terminal 11-0 and the connection conductor 20 are positioned on the same side of the circuit board 11p, the first sampling terminal 11-0, the connection conductor 20 and the electromagnetic system 3-0 are arranged side by side along the height direction d3, the layout design is beneficial to reducing the height dimension of the circuit breaker, the thickness of the circuit board 11p is limited, the space of the shell 1 in the width direction d2 is fully utilized by side of the connection conductor 20 and the circuit board 11p, and the space of the shell 1 in the height direction d3 is fully utilized by side of the first sampling terminal 11-0, the connection conductor 20 and the electromagnetic system 3-0 along the height direction d 3.

Further, the second terminal 8-1 of the secondary circuit structure 9 and the first terminal 8-0 of the primary circuit structure are arranged side by side along the height direction d3, and the second terminal 8-1 and the first terminal 8-0 are arranged at the same end of the housing 1 along the direction d 1. Further, the signal terminal 12 of the main circuit structure is located between the first terminal 8-0 and the second terminal 8-1 in the direction d3, and the signal terminal 12, the first terminal 8-0 and the second terminal 8-1 are disposed at the same end of the housing 1 in the length direction d 1. Further, the first jack 1-20, the signal jack 1-3 and the second jack 1-21 are sequentially arranged at intervals on one end of the housing 1 in the height direction d 3.

Further, the electromagnetic system 3-0, the contact system 4, the arc extinguishing system 6 and the sampling device 7 are arranged side by side with the through conductor of the secondary loop structure 9 along the height direction d3, that is, the electromagnetic system 3-0, the contact system 4, the arc extinguishing system 6 and the sampling device 7 are arranged on the same side of the through conductor along the height direction d 3.

Further, at least a part of the through conductor is arranged side by side with the circuit board 11p of the control system 11 in the width direction d2 and the part is also in plug-in fit with the second sampling terminal 11-1, and the second sampling terminal 11-1 is arranged side by side with the electromagnetic system 3-0 in the height direction d 3.

Further, the rotation plane of the indicator 13 is parallel to the length direction d1 and perpendicular to the width direction d2 and the height direction d3.

Further, the first locking piece 14 and the third terminal 5-0 are respectively arranged at both ends of the housing 1 in the height direction d 3.

Further, the second locking piece and the third terminal 5-0 are respectively arranged at both ends of the housing 1 in the height direction d 3.

Further, in the circuit breaker of the present utility model, when the first locking member 14 and the second locking member are provided at the same time, the first locking member 14 and the second locking member are provided side by side in the width direction d 2.

Further, the first opening and the second opening are provided on the right side wall of the housing 1, and the installation guide structure 1-1 is provided on the left side wall of the housing 1.

As shown in FIG. 1, the length direction, width direction and height direction of the shell 1 are the same as the length direction d1, width direction d2 and height direction d3 of the circuit breaker, the length a of the shell 1 is 100-150 mm, the width b is 10-60 mm, and the height c is 38-45 mm. The dimension of the height c of the shell 1 is the module dimension of the circuit breaker of the utility model. Further, the width b is 10, 15, 20, 25, 30, 60mm. Further, the rated current is not more than 32A when the width b of the shell 1 is 10mm, the rated current is not more than 63 or 80A when the width b of the shell 1 is 15, 20 or 25mm, the rated current is not more than 125A when the width b of the shell 1 is 30mm, and the rated current is not more than 250A when the width b of the shell 1 is 60mm. According to the circuit breaker, the width b of the shell 1 can be adjusted according to actual needs, so that the number of the moving contacts 4-11 and/or the fixed contacts 4-2 can be correspondingly increased along the width direction of the shell 1, and/or the size of the moving contacts 4-11 and/or the fixed contacts 4-2 along the width direction of the shell 1 can be increased, so that the current carrying cross section can be increased, and the current carrying capacity of the circuit breaker is improved. Further, the length a of the housing 1 is the distance between the outer sides of the two side walls of the housing 1 perpendicular to the length direction d1, the width of the housing 1 is the distance between the outer sides of the two side walls of the housing 1 perpendicular to the width direction d2, and the height of the housing 1 is the distance between the outer sides of the two side walls of the housing 1 perpendicular to the height direction d 3.

As shown in fig. 2-5, the circuit breaker of the present utility model further comprises an operating system comprising an operating member 2, an operating mechanism 3, a moving contact mechanism 4-1, a sampling device 7 and a control system 11. Further, the operating system also comprises an indicator 13.

As shown in fig. 2-5, is one embodiment of the operating system.

The operating system of this embodiment further includes a trigger mechanism 17 connected to the control system 11, where the trigger mechanism 17 is triggered by the operating member 2 moving to the closing position to output a first closing signal to the control system 11, after receiving the first closing signal, the control system 11 controls the electromagnetic system 3-0 to operate so that the ejector rod 3-05 drives the moving contact mechanism 4-1 to move to the closing position, that is, when the operating member 2 is operated by an external force to perform closing operation (that is, when the circuit breaker of the present utility model is closed), the operating member 2 moves from the opening position to the closing position to trigger the trigger mechanism 17, and the trigger mechanism 17 outputs the first closing signal to the control system 11, so that the control system 11 controls the electromagnetic system 3-0 to operate so that the ejector rod 3-05 moves from the second position to the first position, and the ejector rod 3-05 drives the moving contact mechanism 4-1 to move from the opening position to the closing position. Further, the ejector rod 3-05 remains stationary during the movement of the operating member 2 to the closing position, that is, during the movement of the operating member 2 from the opening position to the closing position, the ejector rod 3-05 does not move with the operating member 2, but remains in the second position, and the moving contact mechanism 4-1 remains in the opening position. Further, the triggering mechanism 17 is a micro switch.

Further, two ends of the ejector rod 3-05 are respectively connected with the operating piece 2 and the moving contact mechanism 4-1 in a transmission way, the ejector rod 3-05 is driven by the operating piece 2 moving towards the opening position to move, so that the moving contact mechanism 4-1 is driven to move towards the opening position, namely, the operating piece 2 is driven to move towards the opening position from the closing position, the ejector rod 3-05 is driven to move towards the second position from the first position, the ejector rod 3-05 simultaneously drives the moving contact mechanism 4-1 to move towards the opening position from the closing position, and therefore the breaker of the utility model is opened, in other words, when the breaker of the utility model is opened, the operating piece 2 directly drives the ejector rod 3-05 to move, and the moving contact mechanism 4-1 is driven to move towards the opening position by the ejector rod 3-05.

In the operating system of this embodiment, when the operating element 2 moves from the opening position to the closing position to perform the closing operation, the electromagnetic coil of the electromagnetic system 3-0 participates therein, and when the operating element 2 moves from the closing position to perform the opening operation, the electromagnetic coil of the electromagnetic system 3-0 does not participate therein.

Specifically, as shown in fig. 3-5, the operating member 2 includes an operating member main body 2b and an operating member connecting portion 2c for external force operation, one end of the ejector rod 3-05 is matched with the operating member connecting portion 2c and is disposed in a manner of moving relative to the operating member connecting portion 2c along the moving direction of the operating member 2, the operating member main body 2b is slidably disposed on the housing 1, and one end of the operating member main body protrudes outside the housing 1 for external force operation (i.e., one end of the operating member 2 protrudes outside the housing 1 for external force operation). Further, the operating part connecting part 2c comprises a connecting part cavity 2-1c, the ejector rod 3-05 comprises a front rod body 3-0500 and a front connecting cap 3-0501, the front connecting cap 3-0501 comprises a front cap peak, the front cap peak protrudes out of one side of the front rod body 3-0500 along the radial direction of the front rod body 3-0500, the front connecting cap 3-0501 is movably arranged in the connecting part cavity 2-1c, the side wall (an operating part separating wall) of the connecting part cavity 2-1c is in transmission fit with the front cap peak, and when the operating part 2 moves from a closing position to a separating position, the ejector rod 3-05 is driven to move so as to drive the moving contact mechanism 4-1 to move through the ejector rod 3-05, so that the contact system 4 is disconnected. Further, the operation piece connecting part 2c further comprises a connecting part jack 2-0c arranged on the connecting part cavity 2-1c, the outer diameter of the front connecting cap 3-0501 is larger than that of the front rod body 3-0500, the front rod body 3-0500 is inserted into the connecting part jack 2-0c in a sliding mode, the outer diameter of the front rod body 3-0500 is matched with the inner diameter of the connecting part jack 2-0c, and the outer diameter of the front connecting cap 3-0501 is larger than the inner diameter of the connecting part jack 2-0c and is movably arranged in the connecting part cavity 2-1 c. Further, the operation piece connecting portion 2c includes a first connecting portion opening and a second connecting portion opening provided on one side thereof, respectively, the first connecting portion opening being provided on one radial side of the connecting portion insertion hole 2-0c and communicating therewith, the second connecting portion opening communicating with the connecting portion cavity 2-1c, the front connecting cap 3-0501 being introduced into the connecting portion cavity 2-1c from the second connecting portion opening and the front rod body 3-0500 being introduced into the connecting portion insertion hole 2-0c from the first connecting portion opening. Further, the operation member connection portion 2c is a frame structure, and includes a connection portion first edge and a connection portion second edge, the connection portion first edge is connected with the operation member main body 2b, the connection portion jack 2-0c is disposed on the connection portion second edge, and the connection portion cavity 2-1c is located in the middle of the frame structure of the operation member connection portion 2 c. Further, the operating element 2 further includes an operating element engaging portion 2p connected to the operating element main body 2b and disposed parallel to the operating element connecting portion 2c, and the operating element return spring 18 is a compression spring and disposed parallel to the operating element connecting portion 2c, and has one end engaged with the operating element engaging portion 2p and the other end fixed (e.g., fixed to the housing 1).

As other embodiments, the operation member connecting portion 2c is an L-shaped structure, and includes a connecting portion vertical arm and a connecting portion cross arm, one end of the connecting portion vertical arm is connected with the operation member main body 2b, and the other end of the connecting portion vertical arm is connected with the connecting portion cross arm in a bending manner, the connecting portion vertical arm, the connecting portion cross arm and the operation member main body 2b enclose a connecting portion cavity 2c, and the connecting portion cross arm is in transmission fit with a front cap peak of the front connecting cap 3-0501. Further, the connecting part cross arm is provided with connecting part jacks 2-0c. Further, the connecting portion jack 2-0c is arranged at the free end of the connecting portion cross arm, and the front connecting cap 3-0501 and the front rod body 3-0500 respectively enter the connecting portion cavity 2-1c and the connecting portion jack 2-0c from the direction opposite to the vertical arm of the connecting portion.

As other embodiments, the operating member connecting part 2c is of an L-shaped structure and comprises a connecting part vertical arm and a connecting part cross arm, one end of the connecting part vertical arm is connected with the operating member 2b, the other end of the connecting part vertical arm is connected with the connecting part cross arm in a bending way, the connecting rod 3-05 is provided with a connecting rod kidney-shaped hole, the connecting part cross arm is movably inserted into the connecting part kidney-shaped hole, and when the operating member 2 moves from the opening position to the closing position, the connecting part cross arm moves in the connecting rod kidney-shaped hole, and the connecting rod 3-05 keeps stationary.

Further, the operating element connecting portion 2c is also used for triggering the triggering mechanism 17. Further, the trigger mechanism 17 and the operating member return spring 18 are disposed on both sides of the operating member connecting portion 2c in the width direction d2, respectively.

As other embodiments, the operating system further comprises another triggering mechanism, namely a brake-separating triggering mechanism, wherein the brake-separating triggering mechanism is also connected with the control system 11, the ejector rod 3-05 is kept static in the process of moving from the closing position to the brake-separating position of the operating piece 2, the brake-separating triggering mechanism is triggered when the operating piece 2 moves to the brake-separating position, the brake-separating triggering mechanism sends a first brake-separating signal to the control system 11, the control system 11 receives the first brake-separating signal and then controls the electromagnetic system 3-0 to work, the electromagnetic system 3-0 drives the ejector rod 3-05 to move from the first position to the second position, and the ejector rod 3-05 drives the moving contact mechanism 4-1 to move from the closing position to the opening position so as to be disconnected with the fixed contact 4-2.

Further, the operating mechanism 3 further includes a front link (not shown) connected to the operating member 2 and provided to move synchronously, the front link having a similar structure to the operating member connecting portion 2c of the operating member 2 and being connected to the front connection cap 3-0501 and the front rod body 3-0500 of the jack 3-0. Further, the front connecting rod and the operating piece 2 are of a detachable split type structure or an integral type structure.

As shown in fig. 1-5, one embodiment of the circuit breaker of the present utility model includes the operating system.

As shown in fig. 5, when the circuit breaker of the present embodiment is switched on, the operating element body 2b of the operating element 2 is operated (pressed) by an external force to drive the operating element 2 to move from the switching-off position to the switching-on position, and during the process of moving the operating element 2 from the switching-off position to the switching-on position, the ejector rod 3-05 is kept stationary (as shown in fig. 5 (a) -5 (b)), when the operating element 2 moves to the switching-on position (as shown in fig. 5 (b)), the triggering mechanism 17 is triggered, the triggering mechanism 17 sends a first switching-on signal to the control system 11, after the control system 11 receives the first switching-on signal, the electromagnetic system 3-0 is controlled to operate, and the electromagnetic system 3-0 drives the ejector rod 3-05 to move from the second position to the first position (as shown in fig. 5 (b) -5 (c)), and simultaneously drives the moving contact mechanism 4-1 to move from the switching-off position to the switching-on position to close with the fixed contact 4-2 (as shown in fig. 5 (b) -5 (c).

As shown in fig. 5, fig. 5 (c) to 5 (a) show a breaking process of the circuit breaker of the present embodiment, when the circuit breaker of the present embodiment breaks a break, the operating member main body 2b is operated (pulled) by an external force to drive the operating member 2 to move from a closing position to a breaking position, the operating member 2 simultaneously drives the ejector rod 3-05 to move from a first position to a second position (the ejector rod 3-05 moves from the first position to the second position by the second edge of the connecting portion pressing the front connecting cap 3-0501 of the ejector rod 3-05 by the connecting portion 2 c), and the ejector rod 3-05 simultaneously drives the moving contact mechanism 4-1 to move from the closing position to the opening position to break from the fixed contact 4-2.

The circuit breaker of this embodiment includes a first locking mechanism including a first locking member 14 and a first locking member return spring 16. Further, the circuit breaker of the present embodiment further includes an unlocking mechanism 19, where the unlocking mechanism 19 is an unlocking lever, and one end of the unlocking lever is in transmission fit (direct or indirect transmission fit) with the operating member 2 and the other end of the unlocking lever is in transmission fit with the first locking member 14. In particular. One end of the unlocking rod (front end of the unlocking rod) is abutted against the operating member 2 (namely, the front end of the unlocking rod is in direct transmission fit with the operating member 2), the middle part of the unlocking rod is movably abutted against an abutting protrusion of the shell 1 and is rotationally arranged by taking the abutting protrusion as a pivot, the other end of the unlocking rod (rear end of the unlocking rod) is hinged with the first locking member 14, and when the operating member 2 is pulled at the opening position, the front end of the unlocking rod is abutted and pressed to drive the unlocking rod to rotate by taking the abutting protrusion as the pivot, and the rear end of the unlocking rod drives the first locking member 14 to move towards the inside of the shell 1.

As other embodiments, one end of the unlocking lever (front end of the unlocking lever) abuts against the indicator 13 (that is, the front end of the unlocking lever is in indirect transmission fit with the operating member 2 through the indicator 13), the middle part of the unlocking lever is movably abutted against the abutting protrusion of the housing 1 and is rotatably arranged by taking the abutting protrusion as a pivot, the other end of the unlocking lever (rear end of the unlocking lever) is hinged with the first locking member 14, and when the operating member 2 is pulled at the opening position, the indicator 13 abuts against the front end of the unlocking lever to drive the unlocking lever to rotate by taking the abutting protrusion as the pivot, and the rear end of the unlocking lever drives the first locking member 14 to move towards the interior of the housing 1.

In other embodiments, the front end of the unlocking lever is hinged to the operating member 2, the rear end of the unlocking lever is hinged to the first locking member 14, and the middle of the unlocking lever abuts against the abutting protrusion, when the operating member 2 is pulled at the opening position, the operating member 2 drives the unlocking lever to move through the front end of the unlocking lever, and simultaneously enables the unlocking lever to rotate with the abutting protrusion as a pivot, and the rear end of the unlocking lever drives the first locking member 14 to move towards the inside of the housing 1.

The circuit breaker of the embodiment may further comprise a second locking mechanism, wherein the second locking mechanism comprises a second locking piece (not shown in the figure), the second locking piece is directly driven by the operating piece 2 to rotate forward to enable a second locking protrusion of the second locking piece to protrude out of the shell 1 when the circuit breaker of the embodiment is closed, the second locking piece is directly driven by the operating piece 2 to rotate reversely to enable the second locking protrusion to move towards the inside of the shell 1 when the circuit breaker of the embodiment is opened, and the operating piece 2 is directly in limit fit with the second locking piece to limit the reverse rotation of the second locking piece when the circuit breaker of the embodiment is closed. Further, when the circuit breaker of the present embodiment is closed, the second locking member is rotated forward by direct driving of the second locking member forearm operating member 2 of the second locking member. Further, in the circuit breaker of the present embodiment, the second locking member is directly driven by the operating member 2 pulled at the opening position to reversely rotate, and the first locking member 14 is driven by the reversely rotating second locking member to move toward the inside of the housing 1, that is, in the circuit breaker of the present embodiment, when the operating member 2 is pulled at the opening position in the opening state, the operating member 2 simultaneously drives the second locking member to reversely rotate, and the second locking member simultaneously drives the first locking member 14 to move toward the inside of the housing 1.

Further, when the operating member 2 is in the opening position, a free stroke exists between the operating member 2 and the front connecting cap 3-0501 of the ejector rod 3-05, so that the operating member 2 is allowed to move outside the housing 1 relative to the ejector rod 3-05, and the first locking member 14 can be driven to move inside the housing 1 by the unlocking mechanism 9 or the second locking member in the opening position. Specifically, when the operating member 2 is in the opening position, a free stroke exists between the opening wall of the operating member 2 and the front connecting cap 3-0501.

It should be noted that, in the description of the present utility model, the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate an orientation or a positional relationship based on that shown in the drawings or an orientation or a positional relationship conventionally put in use, and are merely for convenience of description, and do not indicate that the apparatus or element to be referred to must have a specific orientation, 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 relative importance.

The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.

Claims (12)

1. The operating system comprises an operating piece (2) which is arranged in a reciprocating manner and provided with a closing position and a separating position, an electromagnetic system (3-0), a moving contact mechanism (4-1) which is provided with a closing position and an opening position, and a control system (11) which is in control connection with the electromagnetic system (3-0), wherein the electromagnetic system (3-0) comprises a magnetism generating component (3-0 m) and a push rod (3-05) which is movably inserted in the middle of the magnetism generating component (3-0 m), and the push rod (3-05) is in transmission connection with the moving contact mechanism (4-1);

The automatic switching-on control device is characterized in that the operating system further comprises a triggering mechanism (17) connected with the control system (11), the triggering mechanism (17) is triggered by an operating piece (2) moving to a switching-on position to output a first switching-on signal to the control system (11), the control system (11) controls an electromagnetic system (3-0) to work after receiving the first switching-on signal to enable a push rod (3-05) to drive a moving contact mechanism (4-1) to move to the switching-on position, and when the operating piece (2) moves to the switching-off position, the moving contact mechanism (4-1) is driven to move to the switching-off position through the electromagnetic system (3-0).

2. Operating system according to claim 1, characterized in that the ejector rod (3-05) remains stationary during the movement of the operating member (2) into the closing position.

3. The operating system according to claim 1, wherein the ejector rod (3-05) is in transmission connection with the operating member (2) and the moving contact mechanism (4-1) at both ends, respectively, and the ejector rod (3-05) is driven to move by the operating member (2) moving to the opening position, thereby driving the moving contact mechanism (4-1) to move to the opening position.

4. The operating system according to claim 2, wherein the operating member (2) comprises an operating member main body (2 b) and an operating member connecting portion (2 c) for external force operation, and the ejector rod (3-05) has one end connected to the operating member connecting portion (2 c) and is disposed so as to be movable relative to the operating member connecting portion (2 c) in a moving direction of the operating member (2).

5. The operating system according to claim 4, wherein the operating member connecting part (2 c) comprises a connecting part cavity (2-1 c), the ejector rod (3-05) comprises a front rod body (3-0500) and a front connecting cap (3-0501), the front connecting cap (3-0501) comprises a front cap peak, the front cap peak protrudes to one side of the front rod body (3-0500) along the radial direction of the front rod body (3-0500), the front connecting cap (3-0501) is movably arranged in the connecting part cavity (2-1 c), the side wall of the connecting part cavity (2-1 c) is in transmission fit with the front cap peak, and when the operating member (2) moves from a closing position to a separating position, the ejector rod (3-05) is driven to move to drive the movable contact mechanism (4-1) to disconnect the contact system (4) through the movement of the ejector rod (3-05).

6. The operating system according to claim 1, further comprising a rear link (3-2), wherein one end of the ejector rod (3-05) is connected to the rear link (3-2) and moves synchronously, and wherein the rear link (3-2) is hinged to a contact support (4-10) of the moving contact mechanism (4-1).

7. The operating system according to claim 1, wherein the electromagnetic system (3-0) is a magnetic holding system, the magnetic generating component (3-0 m) comprises a coil component (3-01), a magnetic yoke (3-03) and a permanent magnet (3-04) which are arranged around the coil component (3-01), the permanent magnet (3-04) is sleeved outside the middle of the coil component (3-01) and is positioned between two electromagnetic coils of the coil component (3-01), the electromagnetic system (3-0) further comprises a movable iron core (3-02) which is arranged in the middle of the coil component (3-01) in a sliding mode, the movable iron core (3-02) is connected with the ejector rod (3-05) and moves synchronously, two ends of the ejector rod (3-05) are respectively protruded on two axial sides of the coil component (3-01), the electromagnetic system (3-0) further comprises a first static iron core and a second static iron core which are arranged oppositely along the axial direction of the coil component (3-01), one end of the movable iron core (3-02) is attracted to the first static iron core (3-05), and the movable iron core (3-02) is arranged at the first position and the second position of the ejector rod (3-05) is located at the first position.

8. The operating system according to claim 7, wherein the ejector rod (3-05) comprises a front ejector rod (3-050) and a rear ejector rod (3-051), one end of the front ejector rod (3-050) is inserted into the movable iron core (3-02) and the other end is in transmission connection with the operating piece (2), and one end of the rear ejector rod (3-051) is inserted into the movable iron core (3-02) and the other end is in transmission connection with the movable contact mechanism (4-1).

9. The operating system according to claim 1, characterized in that the operating system further comprises detection means (7) for detecting the current carried by the moving contact mechanism (4-1) and connected to the control system (11), wherein the control system (11) is operated under the control of the control system (11) when overload and/or short-circuit currents are detected by the detection means (7), such that the ejector rod (3-05) drives the moving contact mechanism (4-1) to the open position.

10. Operating system according to claim 9, characterized in that the detection means (7) are a manganese-copper shunt in series with the moving-contact mechanism (4-1) or in that the detection means (7) are a transformer coupled with the moving-contact mechanism (4-1).

11. The operating system according to claim 1, characterized in that the triggering mechanism (17) is a microswitch.

12. The operating system according to claim 1, further comprising an operating member return spring (18), wherein the operating member return spring (18) acts on the operating member (2) to move the operating member towards the open position.