Operating system

Abstract

The utility model relates to the field of low-voltage electric appliances, in particular to an operating system, which comprises an operating piece, an electromagnetic system, a moving contact mechanism, a control system and a trigger mechanism. When the operating piece moves to the closing position, the triggering mechanism is triggered by the operating piece moving to the closing position to output a first closing signal to the control system, and the control system controls the electromagnetic system to work after receiving the first closing signal so that the ejector rod can drive the moving contact mechanism to move to the closing position. The moving contact mechanism is driven by the electromagnetic system to move towards a disconnection position; the operating system is simple in structure and small in occupied space.

Description

Technical Field

[0001] The utility model relates to the field of low-voltage electrical appliances, and particularly relates to an operating system. Background Art

[0002] For existing circuit breakers, especially intelligent circuit breakers, their basic structure generally includes a short-circuit protection module, an overload protection module, an operating mechanism, and an electric operating module. The short-circuit protection module and the overload protection module are generally set according to different current specifications of the circuit breaker, and the electric operating module realizes remote operation by the cooperation of a motor and a gear. The operating mechanism of the existing circuit breaker has problems of complex structure and large volume. In addition, the structures for realizing the short-circuit and overload protection functions of the existing circuit breaker are complex and occupy a large space. In addition, the assembly of the operating mechanism of the existing circuit breaker is complex. Summary of the Invention

[0003] The purpose of the utility model is to overcome at least one defect of the prior art, and provide an operating system with a simple structure and small occupied space.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An operating system includes an operating member reciprocally movably arranged and having a closing position and a tripping position, an electromagnetic system, a moving contact mechanism having a closed position and an open position, and a control system controllably connected to the electromagnetic system; the electromagnetic system includes a magnetic generating assembly and a push rod movably inserted in the middle of the magnetic generating assembly, and the push rod is in transmission connection with the moving contact mechanism;

[0006] The operating system further includes a trigger mechanism connected to the control system. 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 work, so that the push rod drives the moving contact mechanism to move to the closed position; when the operating member moves to the tripping position, the moving contact mechanism is driven by the electromagnetic system to move to the open position.

[0007] Further, during the process of the operating member moving to the closing position, the push rod remains stationary.

[0008] Further, both ends of the push rod are in transmission connection with the operating member and the moving contact mechanism respectively; the push rod is driven by the operating member moving to the tripping position to move, so as to drive the moving contact mechanism to move to the open position.

[0009] Further, the operating member includes an operating member main body for external force operation and an operating member connecting portion. One end of the push rod is connected to the operating member connecting portion and is relatively movably arranged along the moving direction of the operating member.

[0010] Further, the operating member connecting portion includes a connecting portion cavity; the ejector rod includes a front rod body and a front connecting cap, the front connecting cap includes a front brim, and the front brim protrudes radially along the front rod body on one side of the front rod body; the front connecting cap is movably arranged in the connecting portion cavity, and the side wall of the connecting portion cavity is in driving cooperation with the front brim. When the operating member moves from the closing position to the opening position, the ejector rod is driven to move to drive the moving contact mechanism to move so that the contact system is disconnected.

[0011] Further, the operating system further includes a rear connecting rod. One end of the ejector rod is connected to the rear connecting rod and moves synchronously, and the rear connecting rod is hinged to the contact support of the moving contact mechanism.

[0012] Further, the electromagnetic system is a magnetic holding system; the magnetic generating component includes a coil assembly, a yoke surrounding the coil assembly, and a permanent magnet. The permanent magnet is sleeved outside the middle of the coil assembly and is located between two electromagnetic coils of the coil assembly; the electromagnetic system further includes a moving iron core slidably arranged in the middle of the coil assembly. The moving iron core is connected to the ejector rod and is arranged to move synchronously. Both ends of the ejector rod protrude axially on both sides of the coil assembly; the electromagnetic system further includes a first static iron core and a second static iron core oppositely arranged along the axis of the coil assembly. When one end of the moving iron core is attracted to the first static iron core, the ejector rod is in the first position, and when the moving iron core is attracted to the second static iron core, the ejector rod is in the second position.

[0013] Further, the ejector rod includes a front ejector rod and a rear ejector rod. One end of the front ejector rod is inserted into the moving iron core and the other end is in driving connection with the operating member, and one end of the rear ejector rod is inserted into the moving iron core and the other end is in driving connection with the moving contact mechanism.

[0014] Further, the operating system further includes a detecting device for detecting the current carried by the moving contact mechanism and connected to the control system; when the control system detects overload and / or short-circuit current through the detecting device, the electromagnetic system is controlled by the control system to work, so that the ejector rod drives the moving contact mechanism to move to the disconnecting position.

[0015] Further, the detecting device is a manganin shunt connected in series with the moving contact mechanism; or, the detecting device is a transformer coupled with the moving contact mechanism.

[0016] Further, the triggering mechanism is a microswitch.

[0017] Further, the operating system further includes an operating member return spring, and the operating member return spring acts on the operating member to make it tend to move to the opening position.

[0018] For the operating system of the present utility model, its control system and electromagnetic system realize electric opening and closing operations, and the operating member, triggering mechanism, control system and electromagnetic system realize manual closing operation. The structure is simple, the occupied space is small, the operation transmission path is short, and the reliability is good.

[0019] In addition, the electromagnetic system serves both as a power mechanism for driving the contact system to close and open and as a mechanism for achieving overload and / or short-circuit protection. Compared with existing circuit breakers, the bimetallic element for achieving overload protection and / or the electromagnetic release for achieving short-circuit protection can be cancelled, which is beneficial to reducing the number of components of the circuit breaker, simplifying the structure of the circuit breaker, providing a larger space for the layout of each component of the circuit breaker, and thus being beneficial to reducing the overall size specification of the circuit breaker.

[0020] In addition, the connection structure between the operating member connecting portion and the ejector rod is simple, reducing the difficulty of assembly operation and improving the assembly efficiency. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of the circuit breaker of the present utility model, showing at least the structure of the housing;

[0022] Figure 2 is a projection view of the circuit breaker of the present utility model, showing the structure of the operating system;

[0023] Figure 3 is a schematic structural diagram of the operating system of the present utility model;

[0024] Figure 4 is an exploded view of the operating system of the present utility model;

[0025] Figure 5 is a sectional view of the operating system of the present utility model, showing the process of the operating system performing a closing operation.

[0026] Description of the Reference Numerals

[0027] Housing 1, mounting guiding structure 1-1, first jack 1-20, second jack 1-21, signal jack 1-3, signal window 1-4, third jack 1-50, fourth jack 1-51, operating member mounting hole 1-6;

[0028] Operating member 2, operating member main body 2b, operating member connecting portion 2c, connecting portion jack 2-0c, connecting portion cavity 2-1c, operating member triggering portion 2-0c, operating member mating portion 2p, indicating hole 2-1, mounting cavity 2-2, operating member shaft groove 2-3;

[0029] Operating mechanism 3, electromagnetic system 3-0, magnetic generating component 3-0m, coil assembly 3-01, moving iron core 3-02, yoke 3-03, permanent magnet 3-04, ejector rod 3-05, front ejector rod 3-050, front rod body 3-0500, front connecting cap 3-0501, rear ejector rod 3-051, rear rod body 3-0510, rear connecting cap 3-0511, rear connecting rod 3-2, rear connecting rod cavity 3-20, rear connecting rod jack 3-21, rear connecting rod connection hole 3-22, rear connecting shaft 3-32;

[0030] Contact system 4, moving contact mechanism 4-1, contact support 4-10, support connection hole 4-100, moving contact 4-11, moving contact shaft 4-12, static contact 4-2;

[0031] Third terminal 5-0, fourth terminal 5-1;

[0032] Arc extinguishing system 6;

[0033] Sampling device 7;

[0034] First terminal 8-0, second terminal 8-1;

[0035] Auxiliary circuit structure 9;

[0036] First sampling terminal 10-0, second sampling terminal 10-1;

[0037] Control system 11, circuit board 11p, first sampling terminal 11-0, second sampling terminal 11-1;

[0038] Signal terminal 12;

[0039] Indicator 13, indicating part 13-0, indicator connecting part 13-1, indicator mounting part 13-2, first actuated part 13-30 of indicator, second actuated part 13-31 of indicator;

[0040] First locking part 14, first locking projection 14-1;

[0041] First locking part return spring 16;

[0042] Trigger mechanism 17;

[0043] Operating part return spring 18;

[0044] Unlocking mechanism 19;

[0045] Connecting conductor 20. Specific embodiments

[0046] The following embodiments given in conjunction with the accompanying drawings further illustrate the specific embodiments of the circuit breaker of the present invention. The circuit breaker of the present invention is not limited to the description of the following embodiments.

[0047] like Figure 1-2 As shown, the circuit breaker of the utility model includes a housing 1 and a main circuit structure, and the main circuit structure includes an operating member 2 slidably arranged on the housing 1, and an operating mechanism 3, a contact system 4, an arc extinguishing system 6, and a control system 11, which are respectively arranged in the housing 1. The operating member 2 has an opening position and a closing position, and the operating member 2 switches between the opening position and the closing position by reciprocating sliding. The operating mechanism 3 includes an electromagnetic system 3-0, and the electromagnetic system 3-0 includes a magnetic component 3-0m and a top rod 3-05 movably inserted in the middle of the magnetic component 3-0m, and the top rod 3-05 has a first position and a second position and switches between the first position and the second position by reciprocating movement. The contact system 4 includes a moving contact mechanism 4-1 and a stationary contact 4-2 used in conjunction with each other. The moving contact mechanism 4-1 has a closed position and an open position. The moving contact mechanism 4-1 is closed with the stationary contact 4-2 when in the closed position (i.e., the contact system 4 is in the closed state), and is disconnected from the stationary contact 4-2 when in the open position (i.e., the contact system 4 is in the open state). One end of the top rod 3-05 is connected to the moving contact mechanism 4-1 by transmission. The top rod 3-05 switches between the first position and the second position to drive the moving contact mechanism 4-1 to switch between the closed position and the open position. The arc extinguishing system 6 is used in conjunction with the contact system 4 to extinguish the arc generated when the contact system 4 is closed and opened. The operating member 2 switches between the closing position and the opening position and drives the moving contact mechanism 4-1 to switch between the closing position and the opening position through the electromagnetic system 3-0, so that the contact system 4 switches between the closing state and the opening state, that is, the circuit breaker of the utility model switches between the closing state and the opening state. The electromagnetic system 3-0 works under the control of the control system 11 and drives the top rod 3-05 to switch between the first position and the second position, so that the top rod 3-05 drives the moving contact mechanism 4-1 to switch between the closing position and the opening position. Obviously, in the circuit breaker of the utility model, the closing position of the operating member 2, the first position of the top 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 top 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, both ends of the push rod 3-05 are respectively in transmission cooperation with the operating member 2 and the moving contact mechanism 4-1.

[0048] Specifically, Figure 1-2As shown, the two ends of the push rod 3-05 are respectively connected to the operating member 2 and the moving contact mechanism 4-1; one end of the operating member 2 is inserted into the shell 1 and the other end protrudes from the outside of the shell 1 for external force operation. The external force can be pressed and pulled by the operating member 2, thereby driving the contact system 4 to close and open (that is, driving the circuit breaker to close and open) through the operating mechanism 3.

[0049] Specifically, Figure 2-5 As shown, 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 moving contact mechanism 4-1 is rotatably arranged by the contact support 4-10. Further, the moving contact mechanism 4-1 also includes a contact spring (not shown in the drawings of the specification); the contact support 4-1 is rotatably arranged on the housing 1 by the moving contact shaft 4-12, and the moving contact 4-11 and the contact support 4-10 are relatively rotatably arranged, so that after the moving contact 4-11 and the static contact 4-2 are closed, the contact support 4-10 can continue to rotate a certain angle relative to the moving contact 4-11, so that the contact spring applies a force to the moving contact 4-11 to press the static contact 4-2 to ensure reliable contact between the two.

[0050] As another embodiment, the movable contact mechanism 4 - 1 is arranged to move as a whole, and the movable contact mechanism 4 - 1 switches between a closed position and an open position by reciprocating movement to close and open with the stationary contact 4 - 2 .

[0051] Furthermore, the moving contact mechanism 4-1 is provided with two groups of moving contacts 4-11 arranged in parallel, which can effectively reduce the electric repulsion between the moving / static contacts and improve the current carrying capacity.

[0052] Furthermore, the operating mechanism 3 also includes a rear connecting rod 3-2, which is connected to one end of the top rod 3-05 of the electromagnetic system 3-0 and is hinged to the contact support 4-11. The axis of the hinge shaft between the rear connecting rod 3-2 and the contact support 4-11 is arranged parallel to the rotation axis of the moving contact mechanism 4-1 and spaced apart.

[0053] 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 of the rear connecting rod cavity 3-20 (this side wall is close to the magnetic component 3-0m of the magnetic holding system 3-0). The rear rod body 3-0510 of the ejector rod 3-05 is inserted into the rear connecting rod jack 3-21, and the outer diameter of the rear rod body 3-0510 is adapted to 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, and 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 includes a first rear connecting rod opening and a second rear connecting rod opening arranged on one side thereof. The first rear connecting rod opening communicates with the rear connecting rod cavity 3-20, and the second rear connecting rod opening communicates with the rear connecting rod jack 3-21. The rear rod body 3-0510 enters the rear connecting rod jack 3-21 through the second rear connecting rod opening, and the rear connecting cap 3-0511 enters the rear connecting rod cavity 3-20 through the first rear connecting rod opening.

[0054] Specifically, the rear connecting rod 3-2 is hinged to the contact support 4-11 through a rear connecting shaft 3-32. Further, among the rear connecting rod 3-2 and the contact support 4-10, the connecting shaft 3-32 is arranged on one to move synchronously therewith, and the other is provided with a kidney-shaped hole for cooperating with the rear connecting shaft 3-32. Further, the rear connecting rod 3-2 is provided with a rear connecting rod connection hole 3-22 for inserting the rear connecting shaft 3-32 and adapted thereto. The rear connecting shaft 3-32 is inserted into the rear connecting rod connection hole 3-22 and moves synchronously with the rear connecting rod 3-2. The contact support 4-11 is provided with a kidney-shaped hole, and this kidney-shaped hole is a support connection hole 4-100 for inserting the rear connecting shaft 3-32.

[0055] As other embodiments, the ejector rod 3-05 can also be directly hinged to the contact support 4-11, and the detailed connection manner between the two can be realized through the prior art and will not be described in detail herein.

[0056] Further, the main circuit structure further includes a sampling device 7 coupled to the contact system 4 (i.e., coupled to the moving contact mechanism 4-1). The sampling device 7 is used to collect the current signal flowing through the contact system 4 and is connected to the control system 11. When an overload and / or short-circuit current flows through the contact system 4 (i.e., the control system 11 detects an overload and / or short-circuit current through the sampling device 7), the control system 11 controls the electromagnetic system 3-0 to operate, driving 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 of the present invention, the electromagnetic system 3-0 serves both as a power mechanism for driving the contact system 4 to close and open and as a mechanism for achieving overload and / or short-circuit protection. Compared with the existing circuit breaker, the bimetallic element for achieving overload protection and / or the electromagnetic tripping mechanism for achieving short-circuit protection can be eliminated, which is beneficial to reducing the number of components of the circuit breaker, simplifying the structure of the circuit breaker, providing more space for the layout of each component of the circuit breaker, and thus being beneficial to reducing the overall size specification of the circuit breaker. In the circuit breaker of the present invention, when an overload and short-circuit current flows through the contact system 4, the control system 11 controls the electromagnetic system 3-0 to operate and drives the ejector rod 3-05 to move from the first position to the second position. That is, the electromagnetic system 3-0 serves as both an overload protection and a short-circuit protection mechanism at the same time.

[0057] Specifically, the sampling device 7 is a manganin shunt resistor 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 current transformer coupled to the contact system 4 (i.e., coupled to the moving contact mechanism 4-1). For example, the current transformer can be coupled to the contact system 4 by sleeving on a conductor connected in series with the contact system 4. In the circuit breaker of the present invention, the sampling device 7 preferably uses a manganin shunt resistor.

[0058] Further, the main circuit structure further includes a first terminal 8-0 and a third terminal 5-0. The first terminal 8-0, the contact system 4, and the third terminal 5-0 are connected in series in sequence. Further, the third terminal 5-0, the static contact 4-2, the moving contact mechanism 4-1, and the first terminal 8-0 are connected in series in sequence.

[0059] Specifically, the first terminal 8-0 is the incoming line terminal of the main circuit structure, and the third terminal 5-0 is the outgoing line terminal of the main circuit structure; the sampling device 7 is a manganin shunt resistor; the third terminal 5-0, the static contact 4-2, the moving contact mechanism 4-1, the sampling device 7, and the first terminal 8-0 are connected in series in sequence; or the third terminal 5-0, the sampling device 7, the static contact 4-2, the moving contact mechanism 4-1, and the first terminal 8-0 are connected in series in sequence.

[0060] Furthermore, the main circuit structure also includes a connecting conductor 20, and the static contact 4-2 is electrically connected to the third terminal 5-0 via the connecting conductor 20.

[0061] Furthermore, the main circuit structure also includes a signal terminal 12 connected to the control system 11, and the control system 11 communicates with external equipment through the signal terminal 12. For example, the control system 11 transmits data through the signal terminal 12 and receives external control signals (remote closing signal and remote opening signal) through the signal terminal 12.

[0062] Furthermore, the circuit breaker of the utility model also includes a secondary circuit structure 9 arranged in the housing 1, and the secondary circuit structure 9 is a straight-through circuit. The so-called "straight-through circuit" refers to a circuit structure in which there is no operable breakpoint in the circuit (for example, there is no breakpoint realized by the moving contact and the static contact, the breakpoint is closed when the moving contact and the static contact are closed, and the breakpoint is disconnected when the moving contact and the static contact are disconnected) and it can be directly connected to the external circuit. Further, the secondary circuit structure 9 includes a second terminal 8-1, a straight-through conductor and a fourth terminal 5-1 connected in series in sequence. Further, the straight-through conductor is a conductive plate or a soft conductor. It should be pointed out that the circuit breaker of the utility model can only be provided with a main circuit structure, and the circuit breaker is a single-phase circuit breaker (that is, a 1P type circuit breaker); the circuit breaker of the utility model can also be provided with a main circuit structure and a secondary circuit structure at the same time, and the circuit breaker is a two-phase circuit breaker (that is, a 1P+1N type circuit breaker). In addition, multiple circuit breakers of this embodiment can be arranged side by side, and the operating parts of the circuit breakers and the operating system can cooperate with each other to realize a two-phase (2P type circuit breaker) or multi-phase (3P or 4P) circuit breaker.

[0063] 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 .

[0064] like Figure 2 As shown, the control system 11 includes a circuit board 11p.

[0065] Furthermore, the control system 11 also includes a first sampling terminal 11-0 connected to the circuit board 11p, and the first sampling terminal 11-0 is electrically connected to the connecting conductor 20 to detect the voltage signal, current signal and on / off state of the main circuit structure, so as to determine the current state of the circuit breaker of the utility model. Furthermore, the connecting conductor 20 is a conductive plate, and the first sampling terminal 11-0 is arranged on the circuit board 11p, and the conductive plate is plugged into and matched with the first sampling terminal 11-0.

[0066] Furthermore, the control system 11 also includes a second sampling terminal 11-1 electrically connected to the circuit board 11p and the through conductor, respectively, for detecting the voltage signal and the current signal of the secondary loop structure. Furthermore, the through conductor is a conductive plate, and the second sampling terminal 11-1 is arranged on the circuit board 11p, and the conductive plate is plugged and matched with the second sampling terminal 11-1.

[0067] like Figure 2-5 As shown, the electromagnetic system 3-0 is a magnetic holding system.

[0068] Furthermore, the magnetic generating component 3-0m includes a coil component 3-01, a yoke 3-03 and a permanent magnet 3-04 arranged around the coil component 3-01, the permanent magnet 3-04 is sleeved on the outer side of the middle part of the coil component 3-01 and is located between the two electromagnetic coils of the coil component 3-01; the electromagnetic system 3-0 also includes a moving iron core 3-02 slidably arranged in the middle part of the coil component 3-01, the moving iron core 3-02 is connected to the top rod 3-05 and is arranged to move synchronously, and the two ends of the top rod 3-05 protrude on both sides of the axial direction of the coil component 3-01 respectively; the electromagnetic system 3-0 also includes a first static iron core and a second static iron core arranged relatively along the axial direction of the coil component 3-01, when one end of the moving iron core 3-02 is attracted with the first static iron core, the top rod 3-05 is in the first position, and when the moving iron core 3-02 is attracted with the second static iron core, the top rod 3-05 is in the second position, and the top rod 3-05 moves back and forth along the axial direction of the coil component 3-01 and switches between the first position and the second position. Furthermore, the yoke 3-03 is a square frame structure, and the first static iron core and the second static iron core are formed by a pair of side walls of the yoke 3-03. Furthermore, the yoke 3-03 includes a yoke seat and a yoke end plate of a U-shaped structure, the open end of the U-shaped structure of the yoke seat is connected to the yoke end plate, and the yoke end plate and the bottom plate of the U-shaped structure of the yoke seat, one as the first static iron core and the other as the second static iron core.

[0069] It should be pointed out that the electromagnetic system 3-0 can also adopt other structural types of existing magnetic holding systems. For example, the difference between an existing magnetic holding system and this embodiment is that it includes two groups of permanent magnets, and the two groups of permanent magnets are respectively arranged on the outside of the axial ends of the coil assembly 3-01, and the electromagnetic coil of the coil assembly 3-01 is located between the two groups of permanent magnets.

[0070] Furthermore, the push rod 3-05 includes a front push rod 3-050 and a rear push rod 3-051, one end of the front push rod 3-050 is inserted in the moving iron core 3-02 and the other end protrudes outside the axial end of the electromagnetic coil and is connected to the operating member 2, and one end of the rear push rod 3-051 is inserted in the moving iron core 3-02 and the other end protrudes outside the axial end of the electromagnetic coil and is connected to the moving contact mechanism 4-1.

[0071] Specifically, the front ejector rod 3-05 includes a front rod body 3-0500 and a front connection cap 3-0501. One end of the front rod body 3-0500 is connected to the front connection cap 3-0501, and the other end is connected to the moving iron core 3-02 (for example, inserted into the moving iron core 3-02 from one axial end of the moving iron core 3-02); the rear ejector rod 3-051 includes a rear rod body 3-0510 and a rear connection cap 3-0511. One end of the rear rod body 3-0510 is connected to the rear connection cap 3-0511, and the other end is connected to the moving iron core 3-02 (for example, inserted into the moving iron core 3-02 from the other axial end of the moving iron core 3-02). Further, the front rod body 3-0500 and the front connection cap 3-0501 are of an integral structure or a detachable split structure; the rear rod body 3-0510 and the rear connection cap 3-0511 are of an integral structure or a detachable split structure.

[0072] As Figure 2 shown, the circuit breaker of the present invention further includes a first locking member 14 slidably disposed in the housing 1 along the direction d3 and a first locking member return spring 16. The first locking member return spring 16 acts on the first locking member 14 to make it tend to move outward of the housing 1 and make the first locking protrusion 14-1 of the first locking member 14 protrude outside the housing 1. When the first locking protrusion 14-1 is externally squeezed, the first locking member 14 moves inward of the housing 1 (that is, when the first locking protrusion 14-1 is externally squeezed, it drives the whole first locking member 14 to move inward of the housing 1); in the open state of the circuit breaker, the first locking member 14 is driven by the operating member 2 being pulled to move inward of the housing 1. That is, in the open state of the circuit breaker, when the operating member 2 is pulled at the open position, it drives the first locking member 14 to move inward of the housing 1.

[0073] When the circuit breaker of the present invention is actually installed in a circuit breaker installation cabinet (such as a power distribution cabinet, a control cabinet or other electrical cabinets), the first locking protrusion 14-1 is squeezed by the structure of the circuit breaker installation cabinet and moves inward of the housing 1, which will not affect the installation of the circuit breaker in the designated position of the circuit breaker installation cabinet. After the circuit breaker is installed in the designated position and in place, the first locking protrusion 14-1 will be opposite to the first locking hole provided at the designated position of the circuit breaker installation cabinet and move outward of the housing 1 and insert into the first locking hole, so as to be in limit cooperation with the circuit breaker installation cabinet, so that the circuit breaker will not be pulled out of the designated position of the circuit breaker installation cabinet in the closed state, which not only ensures the personal safety of the operator, but also ensures the reliability and stability of power consumption.

[0074] The circuit breaker of the present utility model further includes a second locking member (not shown in the figure) rotatably disposed in the housing 1, and the second locking member includes a second locking protrusion; when the operating member 2 moves from the open position to the closed position, the second locking member is directly or indirectly driven by the operating member 2 to rotate forward, causing the second locking protrusion to move outward of the housing 1; when the operating member 2 moves from the closed position to the open position, the second locking member rotates reversely, causing the second locking protrusion to move inward of the housing 1; when the operating member 2 is in the closed position, the operating member 2 directly or indirectly restricts the reverse rotation of the second locking member.

[0075] When the operating member 2 moves from the open position to the closed position, the second locking member is driven by the operating member 2 to rotate forward, causing the second locking protrusion to move outward of the housing 1. The second locking protrusion is used for structural limit cooperation with the circuit breaker installation cabinet (such as a power distribution cabinet, a control cabinet or other electrical cabinets), thereby preventing the circuit breaker of the present utility model from being installed in the circuit breaker installation cabinet in the closed state, ensuring the personal safety of the operator; after the circuit breaker of the present utility model is installed in the circuit breaker installation cabinet in the open state and is in place, the second locking protrusion protruding outside the housing 1 is also used to face and extend into the second locking hole of the circuit breaker installation cabinet. The second locking protrusion is in structural limit cooperation with the circuit breaker installation cabinet. When the operating member 2 is in the closed position, the operating member 2 is directly or indirectly in limit cooperation with the second locking member to prevent its reverse rotation, thereby preventing the circuit breaker of the present utility model from being pulled out of the circuit breaker installation cabinet in the closed state, ensuring both the personal safety of the operator and the stability and reliability of power consumption; when the operating member 2 moves from the closed position to the open position, the second locking member rotates reversely, causing the second locking protrusion to move inward of the housing 1, and the second locking protrusion exits from the second locking hole, thereby releasing the limit cooperation with the circuit breaker installation cabinet, and the second locking member will not affect the removal of the circuit breaker of the present utility model from the circuit breaker installation cabinet.

[0076] Further, the second locking protrusion is a square protrusion, thereby avoiding the situation that when the operating member 2 is in the closed position, the second locking protrusion is squeezed, causing damage or deformation of the second locking member, and directly installing the circuit breaker of the present utility model in the circuit breaker installation cabinet.

[0077] Further, when the operating member 2 moves from the closed position to the open position, the second locking member is directly or indirectly driven by the operating member 2 to rotate reversely, causing the second locking protrusion to move inward of the housing 1. Further, the second locking member is driven by the operating member 2 pulled at the open position to rotate reversely, and the first locking member 14 moves inward of the housing 1 when the operating member 2 located at the open position is pulled, driven by the reversely rotating second locking member; that is, when the operating member 2 is pulled at the open position, the operating member 2 simultaneously drives the second locking member to rotate reversely, and the second locking member simultaneously drives the first locking member 14 to move inward of the housing 1.

[0078] As other embodiments, the circuit breaker of the present invention includes a second locking member return spring (not shown in the figure) that acts on the second locking member to make it have a tendency to rotate reversely. When the operating member 2 moves from the closing position to the opening position, the operating member 2 no longer restricts the reverse rotation of the second locking member, and the second locking member return spring drives the second locking member to rotate reversely.

[0079] The circuit breaker of the present invention can be provided with both the first locking member 14 and the second locking member, or only the first locking member 14 or the first locking member can be provided.

[0080] As Figure 3-4 shown, the circuit breaker of the present invention further includes an indicating member 13 provided in the middle of the operating member 2 and having a first indicating position and a second indicating position. The operating member 2 includes an indicating hole 2-1 for cooperating with the indicating member 13; when the operating member 2 moves to the closing position, the indicating member 13 is driven by the indicating member driving structure to rotate to the first indicating position; when the operating member 2 moves to the opening position, the indicating member 13 is driven by the indicating member driving structure to rotate to the second indicating position; that is, the first indicating position and the second indicating position of the indicating member 13 respectively correspond to the closing position and the opening position of the operating member 2 and respectively correspond to the closing state and the opening state of the circuit breaker of the present invention. The indicating member 13 is provided in the middle of the operating member 2, which is beneficial to improving the structural compactness of the circuit breaker and reducing the overall installation space required for the circuit breaker.

[0081] Further, the indicating member 13 includes an indicating portion 13-0, an indicating member connecting portion 13-1, and an indicating member mounting portion 13-2 that are connected in sequence, and a closing actuating portion 13-30 and a tripping actuating portion 13-31 provided on the indicating member mounting portion 13-2; the indicating portion 13-0 cooperates with the indicating hole 2-1 of the operating member 2, and the indicating member 13 is rotationally mounted on the operating member 2 through the indicating member mounting portion 13-2. The closing actuating portion 13-30 and the tripping actuating portion 13-31 are arranged in sequence along the rotation direction of the indicating member mounting portion 13-2; the indicating member driving structure is realized by the housing 1 (for example, a driving protrusion provided on the housing 1, and the driving protrusion is inserted between the closing actuating portion 13-30 and the tripping actuating portion 13-31); when the operating member 2 moves to the closing position, the closing actuating portion 13-0 is pressed by the indicating member driving structure to rotate the indicating member 13 to the first indicating position; when the operating member 2 moves to the opening position, the tripping actuating portion 13-1 is pressed by the indicating member driving structure at a low pressure to rotate the indicating member 13 to the second indicating position.

[0082] As other embodiments, the indicating member 13 is not provided with a closing actuating part 13-30 and a tripping actuating part 13-31, but only an indicating member actuating part is provided on the indicating member mounting part 13-2; correspondingly, the indicating member driving structure includes two indicating member driving protrusions, one is a closing driving protrusion and the other is a tripping driving protrusion, and the indicating member actuating part is inserted between the two indicating member driving protrusions; when the operating member 2 moves to the closing position, the closing driving protrusion presses against the indicating member actuating part to rotate the indicating member 13 to the first indicating position; when the operating member 2 moves to the tripping position, the tripping driving protrusion presses against the indicating member actuating part to rotate the indicating member 13 to the second indicating position.

[0083] As Figure 1 shown, the housing 1 further includes an operating member mounting hole 1-6 for the operating member 2 to be inserted therein, a first jack 1-20 for mating with the first terminal 8-0, a second jack 1-21 for mating with the second terminal 8-1, a signal jack 1-3 for mating with the signal terminal 12, a third jack 1-50 for mating with the third terminal 5-0, and a fourth jack 1-51 for mating with the fourth terminal 5-1.

[0084] As Figure 1 shown, the housing 1 further includes a signal window 1-4, and the circuit breaker further includes an indicating element connected to the control system 11. The indicating element cooperates with the signal window 1-4 to indicate the state of the circuit breaker, such as the closing and tripping states, fault state, communication state, etc. of the circuit breaker; the signal window 1-4 and the operating member mounting hole 1-6 are provided on the same side wall of the housing 1. Further, the indicating element is an indicator light.

[0085] As Figure 2 shown, the housing 1 is further provided with a first opening for the first locking protrusion 14-1 of the first locking member 14 to pass through and a second opening for the second locking protrusion of the second locking member to pass through. Further, the first opening and the second opening are the same opening.

[0086] As Figure 1 shown, the housing 1 further includes an installation guiding structure 1-1, which is used to cooperate with the guiding structure on the circuit breaker installation cabinet (such as a power distribution cabinet, a control cabinet or other electrical cabinets) when the circuit breaker of the present invention is installed in the circuit breaker installation cabinet, so that the circuit breaker of the present invention is installed in place in the correct posture. Further, the installation guiding structure 1-1 is a guiding rib structure.

[0087] As Figure 1-2 shown, it is a layout mode of the circuit breaker of the present invention.

[0088] The circuit breaker of the present utility model includes a length direction d1, a width direction d2, and a height direction d3. That is, the length direction, width direction, and height direction of the circuit breaker are the length direction d1, width direction d2, and height direction d3 respectively, and the length direction d1, width direction d2, and height direction d3 are perpendicular to each other. In the length direction d1, the operating member 2 is arranged at one end of the housing 1, and 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 arranged in sequence 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 is arranged side by side with the electromagnetic system 3-0 along the height direction d3.

[0089] The circuit breaker of the present utility model adopts the above layout, which is compact and reasonable in structure, conducive to reducing the overall specification size of the circuit breaker of the present utility model, and conforms to the development trend of miniaturization of circuit breakers.

[0090] Furthermore, 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, in the height direction d3, the operating member 2, the electromagnetic system 3-0, and the sampling device 7 are on the same side relative to the side where the arc extinguishing system 6 is located, and the operating member 2, the electromagnetic system 3-0, and the sampling device 7 are arranged on the same side inside the housing 1. The above layout is conducive to the wiring of the control system 11 and the electromagnetic system 3-0 and the coupling of the sampling device 7 and the contact system 4, and further simplifies the internal layout of the circuit breaker of the present utility model.

[0091] Furthermore, the circuit board 11p is arranged side by side with the contact system 4 and / or the arc extinguishing system 6 in the width direction d2; in the circuit breaker of the present utility model, the circuit board 11p is arranged side by side with the contact system 4 and the arc extinguishing system 6 in the width direction d2. 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 in the width direction d2 can be adjusted according to the specific size of the circuit board 11p.

[0092] Specifically, as Figure 1-2 shown in the direction, Figure 1 the up and down direction is the length direction d1, Figure 1 the inside and outside direction is the width direction d2, Figure 1The left - right direction is the height direction d3; the operating member 2 is arranged at the upper end of the housing 1, the sampling device 7 and the arc extinguishing system 6 are arranged at the lower end of the housing 1, the sampling device 7 and the arc extinguishing system 6 are arranged side by side in the left - right direction, 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 in the left - right direction. The operating member 2, the electromagnetic system 3 - 0 and the sampling device 7 are all arranged on the right side of the arc extinguishing system 6; that is, in the left - right direction, the electromagnetic system 3 - 0 is located on the right side of the circuit board 11p of the control system 11, the sampling device 7 is located on the right side of the arc extinguishing system 6, and the operating member 2, the electromagnetic system 3 - 0 and the sampling device 7 are all arranged on the right side inside the housing 1.

[0093] As another embodiment, the operating member 2, the electromagnetic system 3 - 0 and the sampling device 7 are all arranged on the left side of the arc extinguishing system 6, that is, the components inside the circuit breaker are arranged in a mirror image manner with respect to this embodiment.

[0094] Further, the first terminal 8 - 0 and the second terminal 5 - 0 are respectively arranged at both ends of the housing 1 along the length direction d1, the third terminal 5 - 0 is arranged side by side with the operating member 2 along the direction d3, and 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 in the length direction d1; that is, the operating member 2 and the first terminal 8 - 0 are located at the two ends of the housing 1 with the farthest distance in 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 on the same side of the third terminal 5 - 0 and the arc extinguishing system 6 in the height direction d3.

[0095] Specifically, as Figure 2 shown in the direction, the operating member 2 and the third terminal 5 - 0 are both arranged at the uppermost end of the housing 1, the third terminal 5 - 0 is arranged on the left side of the operating member 2, the first terminal 8 - 0 is arranged at the lowermost end of the housing 1, the electromagnetic system 3 - 0 and the sampling device 7 are arranged from top to bottom between the operating member 2 and the first terminal 8 - 0, and the third terminal 5 - 0, the control system 11 and the arc extinguishing system 6 are arranged from top to bottom in sequence.

[0096] As another embodiment, in the length direction d1, the first terminal 8 - 0 and the second terminal 5 - 1 are arranged at one end of the circuit breaker, and the operating member 2 is arranged at the other end of the circuit breaker; that is, the first terminal 8 - 0 and the second terminal 5 - 1 are arranged at the same end of the circuit breaker. Further, the first terminal 8 - 0 and the second terminal 5 - 1 are arranged side by side at intervals along the height direction d3.

[0097] Furthermore, the third jack 1-50, the fourth jack 1-51, the signal window 1-4, and the operating member mounting hole 1-6 are all provided on the same side wall of the housing 1. The third jack 1-50, the fourth jack 1-51, and the signal window 1-4 are arranged in a triangular shape. In the direction d3, the fourth jack 1-51 is the farthest from the operating member jack 1-6, and the signal window 1-4 is the closest to the operating member jack 1-6. In the width direction d2, the fourth jack 1-51 and the signal window 1-4 are located on the same side of the third jack 1-50.

[0098] Furthermore, the connecting conductor 20 of the main circuit structure and the circuit board 11p of the control system 11 are arranged side by side in the width direction d2. The first sampling terminal 11-0 and the connecting conductor 20 are located on the same side of the circuit board 11p. The first sampling terminal 11-0, the connecting conductor 20, and the electromagnetic system 3-0 are arranged side by side in the height direction d3. The above layout design is beneficial to reducing the height dimension of the circuit breaker of the present utility model. Moreover, the thickness of the circuit board 11p itself is limited. The side-by-side arrangement of the connecting conductor 20 and the circuit board 11p also makes full use of the space of the housing 1 in the width direction d2. The side-by-side arrangement of the first sampling terminal 11-0, the connecting conductor 20, and the electromagnetic system 3-0 in the height direction d3 also makes full use of the space of the housing 1 in the height direction d3.

[0099] Furthermore, the second terminal 8-1 of the secondary circuit structure 9 and the first terminal 8-0 of the main circuit structure are arranged side by side in the height direction d3. The second terminal 8-1 and the first terminal 8-0 are arranged at the same end of the housing 1 in the direction d1. Furthermore, 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. The signal terminal 12, the first terminal 8-0, and the second terminal 8-1 are arranged at the same end of the housing 1 in the length direction d1. Furthermore, the first jack 1-20, the signal jack 1-3, and the second jack 1-21 are arranged at intervals in sequence in the height direction d3 at one end of the housing 1.

[0100] Furthermore, 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 straight-through conductor of the secondary circuit structure 9 in 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 straight-through conductor in the height direction d3.

[0101] Furthermore, at least a part of the straight-through conductor is arranged side by side with the circuit board 11p of the control system 11 in the width direction d2 and this part is also inserted and matched with the second sampling terminal 11-1. The second sampling terminal 11-1 is arranged side by side with the electromagnetic system 3-0 in the height direction d3.

[0102] Further, the rotation plane of the indicating member 13 is parallel to the length direction d1 and perpendicular to the width direction d2 and the height direction d3.

[0103] Further, the first locking member 14 and the third terminal 5-0 are respectively arranged at two ends of the housing 1 along the height direction d3.

[0104] Further, the second locking member and the third terminal 5-0 are respectively arranged at two ends of the housing 1 along the height direction d3.

[0105] Further, when the circuit breaker of the present utility model is provided with both the first locking member 14 and the second locking member, the first locking member 14 and the second locking member are arranged side by side along the width direction d2.

[0106] Further, the first opening and the second opening are arranged on the right side wall of the housing 1, and the installation guiding structure 1-1 is arranged on the left side wall of the housing 1.

[0107] As Figure 1 shown, the length direction, width direction and height direction of the housing 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 housing 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 housing 1 is the modular dimension of the circuit breaker of the present utility model. Further, the width b is 10, 15, 20, 25, 30, 60 mm. Further, for the circuit breaker of the present utility model, when the width b of the housing 1 is 10 mm, the rated current ≤ 32 A; for the circuit breaker of the present utility model, when the width b of the housing 1 is 15, 20 or 25 mm, the rated current ≤ 63 or 80 A; for the circuit breaker of the present utility model, when the width b of the housing 1 is 30 mm, the rated current ≤ 125 A; for the circuit breaker of the present utility model, when the width b of the housing 1 is 60 mm, the rated current ≤ 250 A. For the circuit breaker of the present utility model, the width b of the housing 1 can be adjusted according to actual needs, and then the number of moving contacts 4-11 and / or static contacts 4-2 can be increased along the width direction of the housing 1, and / or the dimensions of the moving contacts 4-11 and / or static contacts 4-2 along the width direction of the housing 1 can be increased to increase the current-carrying cross-section, thereby improving the current-carrying capacity of the circuit breaker of the present utility model. Further, the length a of the housing 1 is the distance between the outer side surfaces of the two side walls perpendicular to the length direction d1 of the housing 1, the width of the housing 1 is the distance between the outer side surfaces of the two side walls perpendicular to the width direction d2 of the housing 1, and the height of the housing 1 is the distance between the outer side surfaces of the two side walls perpendicular to the height direction d3 of the housing 1.

[0108] As Figure 2-5As shown, the circuit breaker of the present invention further includes an operating system, which includes an operating member 2, an operating mechanism 3, a moving contact mechanism 4-1, a sampling device 7 and a control system 11. Furthermore, the operating system further includes an indicator 13.

[0109] like Figure 2-5 The figure shows an embodiment of the operating system.

[0110] The operating system of this embodiment also includes a trigger mechanism 17 connected to the control system 11. The trigger mechanism 17 is triggered by the operating member 2 moving to the closing position and outputs 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 top rod 3-05 drives the moving contact mechanism 4-1 to move to the closed position; that is, when the operating member 2 is operated by an external force to perform a closing operation (that is, when the circuit breaker of the utility model is closed), the operating member 2 triggers the trigger mechanism 17 when it moves from the opening position to the closing position, and the trigger mechanism 17 outputs the first closing signal to the control system 11, and then the control system 11 controls the electromagnetic system 3-0 to operate so that the top rod 3-05 moves from the second position to the first position, and the top rod 3-05 drives the moving contact mechanism 4-1 to move from the opening position to the closing position. Further, during the movement of the operating member 2 to the closing position, the top rod 3-05 remains stationary; that is, during the movement of the operating member 2 from the opening position to the closing position, the top rod 3-05 does not move with the operating member 2, but remains in the second position, and the moving contact mechanism 4-1 also remains in the disconnected position. Further, the trigger mechanism 17 is a micro switch.

[0111] Furthermore, the two ends of the push rod 3-05 are respectively connected to the operating member 2 and the moving contact mechanism 4-1; the push rod 3-05 is driven by the operating member 2 moving to the opening position to move, thereby driving the moving contact mechanism 4-1 to move to the disconnecting position, that is, the operating member 2 moves from the closing position to the opening position and drives the push rod 3-05 to move from the first position to the second position, and the push rod 3-05 simultaneously drives the moving contact mechanism 4-1 to move from the closing position to the disconnecting position, thereby opening the circuit breaker of the utility model; in other words, when the circuit breaker of the utility model is opened, the operating member 2 directly drives the push rod 3-05 to move and the moving contact mechanism 4-1 is driven by the push rod 3-05 to move to the disconnecting position.

[0112] In the operating system of this embodiment, when the operating member 2 moves from the opening position to the closing position to perform the closing operation, the electromagnetic coil of the electromagnetic system 3-0 is involved; when the operating member 2 moves from the closing position to the closing position to perform the opening operation, the electromagnetic coil of the electromagnetic system 3-0 is not involved.

[0113] Specifically, Figure 3-5As shown, the operating member 2 includes an operating member main body 2b for external force operation and an operating member connecting portion 2c. One end of the ejector rod 3-05 is engaged with the operating member connecting portion 2c and is relatively movably arranged along the moving direction of the operating member 2 with respect to the operating member connecting portion 2c. The operating member main body 2b is slidably arranged on the housing 1 and one end protrudes outside the housing 1 for external force operation (that is, one end of the operating member 2 protrudes outside the housing 1 for external force operation). Further, the operating member connecting portion 2c includes a connecting portion cavity 2-1c; the ejector rod 3-05 includes a front rod body 3-0500 and a front connecting cap 3-0501. The front connecting cap 3-0501 includes a front brim, and the front brim protrudes radially on one side of the front rod body 3-0500 along the front rod body 3-0500; the front connecting cap 3-0501 is movably arranged in the connecting portion cavity 2-1c, and the side wall of the connecting portion cavity 2-1c (the operating member opening wall) is in driving cooperation with the front brim. When the operating member 2 moves from the closing position to the opening position, the ejector rod 3-05 is driven to move 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 operating member connecting portion 2c further includes a connecting portion insertion hole 2-0c provided on the connecting portion cavity 2-1c; the outer diameter of the front connecting cap 3-0501 is greater than the outer diameter of the front rod body 3-0500. The front rod body 3-0500 is slidably inserted into the connecting portion insertion hole 2-0c and the outer diameter of the front rod body 3-0500 is adapted to the inner diameter of the connecting portion insertion hole 2-0c. The outer diameter of the front connecting cap 3-0501 is greater than the inner diameter of the connecting portion insertion hole 2-0c and is movably arranged in the connecting portion cavity 2-1c. Further, the operating member connecting portion 2c includes a first connecting portion opening and a second connecting portion opening respectively provided on one side thereof. The first connecting portion opening is provided on the radial side of the connecting portion insertion hole 2-0c and is in communication with it. The second connecting portion opening is in communication with the connecting portion cavity 2-1c; the front connecting cap 3-0501 enters the connecting portion cavity 2-1c from the second connecting portion opening and the front rod body 3-0500 enters the connecting portion insertion hole 2-0c from the first connecting portion opening. Further, the operating member connecting portion 2c is a frame structure, which includes a connecting portion first side and a connecting portion second side. The connecting portion first side is connected to the operating member main body 2b. The connecting portion insertion hole 2-0c is provided on the connecting portion second side, and the connecting portion cavity 2-1c is located in the middle of the frame structure of the operating member connecting portion 2c. Further, the operating member 2 further includes an operating member cooperation portion 2p connected to the operating member main body 2b and arranged side by side with the operating member connecting portion 2c; the operating member return spring 18 is a compression spring and is arranged side by side with the operating member connecting portion 2c, one end is in cooperation with the operating member cooperation portion 2p and the other end is fixedly arranged (for example, fixed on the housing 1).

[0114] As other embodiments, the operating member connecting portion 2c is an L-shaped structure, which includes a connecting portion vertical arm and a connecting portion horizontal arm. One end of the connecting portion vertical arm is connected to the operating member main body 2b, and the other end is bent and connected to the connecting portion horizontal arm. The connecting portion vertical arm, the connecting portion horizontal arm and the operating member main body 2b enclose a connecting portion cavity 2c. The connecting portion horizontal arm is in driving cooperation with the front brim of the front connecting cap 3-0501. Further, a connecting portion insertion hole 2-0c is provided on the connecting portion horizontal arm. Further, the connecting portion insertion hole 2-0c is provided at the free end of the connecting portion horizontal arm. The front connecting cap 3-0501 and the front rod body 3-0500 enter the connecting portion cavity 2-1c and the connecting portion insertion hole 2-0c respectively from the direction opposite to the connecting portion vertical arm.

[0115] As other embodiments, the operating member connecting portion 2c is an L-shaped structure, which includes a connecting portion vertical arm and a connecting portion horizontal arm. One end of the connecting portion vertical arm is connected to the operating member 2b, and the other end is bent and connected to the connecting portion horizontal arm; the connecting rod 3-05 is provided with a connecting rod waist-shaped hole, and the connecting portion horizontal arm is movably inserted into the connecting portion waist-shaped hole; when the operating member 2 moves from the opening position to the closing position, the connecting portion horizontal arm moves in the connecting rod waist-shaped hole, and the connecting rod 3-05 remains stationary.

[0116] Further, the operating member connecting portion 2c is also used to trigger the triggering mechanism 17. Further, the triggering mechanism 17 and the operating member return spring 18 are respectively arranged on both sides of the operating member connecting portion 2c along the width direction d2.

[0117] As other embodiments, the operating system further includes another triggering mechanism - a tripping triggering mechanism, and the tripping triggering mechanism is also connected to the control system 11; during the process of the operating member 2 moving from the closing position to the opening position, the ejector rod 3-05 remains stationary. When the operating member 2 moves to the opening position, the tripping triggering mechanism is triggered, and the tripping triggering mechanism sends a first tripping signal to the control system 11. After receiving the first tripping signal, the control system 11 controls the electromagnetic system 3-0 to operate, and the electromagnetic system 3-0 drives the ejector rod 3-05 to move from the first position to the second position. The ejector rod 3-05 simultaneously drives the moving contact mechanism 4-1 to move from the closed position to the open position to disconnect from the static contact 4-2.

[0118] Further, the operating mechanism 3 further includes a front connecting rod (not shown in the figure), the front connecting rod is connected to the operating member 2 and is arranged to move synchronously. The front connecting rod has a structure similar to the operating member connecting portion 2c of the operating member 2 and is connected to the front connecting cap 3-0501 and the front rod body 3-0500 of the ejector rod 3-0. Further, the front connecting rod and the operating member 2 are of a detachable split structure or an integral structure.

[0119] As Figure 1-5 shown, it is an embodiment of the circuit breaker of the present invention, which includes the operating system.

[0120] As Figure 5 shown, when the circuit breaker of this embodiment is closed, the operating member body 2b of the operating member 2 is operated (pressed) by an external force to drive the operating member 2 to move from the tripped position to the closed position. During the process of the operating member 2 moving from the tripped position to the closed position, the ejector rod 3-05 remains stationary (as Figure 5 (a)-5(b) shown), when the operating member 2 moves to the closed position (as Figure 5 (b) shown), it triggers the trigger mechanism 17. When the trigger mechanism 17 is triggered, it sends 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 work. The electromagnetic system 3-0 drives the ejector rod 3-05 to move from the second position to the first position (as Figure 5 (b)-5(c) shown), and the ejector rod 3-05 simultaneously drives the moving contact mechanism 4-1 to move from the open position to the closed position and close with the static contact 4-2 (as Figure 5 (b)-5(c) shown).

[0121] As Figure 5 shown, from Figure 5 (c) to 5(a) show the tripping process of the circuit breaker of this embodiment: when the circuit breaker of this embodiment trips, the operating member body 2b is operated (pulled) by an external force to drive the operating member 2 to move from the closed position to the tripped position. The operating member 2 simultaneously drives the ejector rod 3-05 to move from the first position to the second position (the operating member connecting portion 2c presses against the front connecting cap 3-0501 of the ejector rod 3-05 through the second side of the connecting portion to cause the ejector rod 3-05 to move from the first position to the second position), and the ejector rod 3-05 simultaneously drives the moving contact mechanism 4-1 to move from the closed position to the open position and disconnect from the static contact 4-2.

[0122] The circuit breaker of this embodiment includes a first locking mechanism. The first locking mechanism includes a first locking member 14 and a first locking member return spring 16. Further, the circuit breaker of this embodiment further includes an unlocking mechanism 19. The unlocking mechanism 19 is an unlocking rod. One end of the unlocking rod is in transmission cooperation (directly or indirectly) with the operating member 2, and the other end is in transmission cooperation with the first locking member 14. Specifically. One end (the front end of the unlocking rod) of the unlocking rod abuts against the operating member 2 (that is, the front end of the unlocking rod is in direct transmission cooperation with the operating member 2), the middle part is movably abutted against the abutting protrusion of the housing 1 and is rotatably arranged with the abutting protrusion as a fulcrum, and the other end (the rear end of the unlocking rod) is hinged to the first locking member 14; when the operating member 2 is pulled at the tripped position, it presses against the front end of the unlocking rod to drive the unlocking rod to rotate with the abutting protrusion as a fulcrum, and the rear end of the unlocking rod drives the first locking member 14 to move into the housing 1.

[0123] As other embodiments, one end of the unlocking lever (the front end of the unlocking lever) abuts against the indicating member 13 (that is, the front end of the unlocking lever is indirectly driven and cooperated with the operating member 2 through the indicating member 13), the middle part is movably abutted against the abutting protrusion of the housing 1 and is rotatably arranged with the abutting protrusion as a fulcrum, and the other end (the rear end of the unlocking lever) is hinged to the first locking member 14; when the operating member 2 is pulled at the opening position, the indicating member 13 presses against the front end of the unlocking lever to drive the unlocking lever to rotate with the abutting protrusion as a fulcrum, and the rear end of the unlocking lever drives the first locking member 14 to move towards the inside of the housing 1.

[0124] As 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 part 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 at the same time makes the unlocking lever rotate with the abutting protrusion as a fulcrum, and the rear end of the unlocking lever drives the first locking member 14 to move towards the inside of the housing 1.

[0125] The circuit breaker of this embodiment may further include a second locking mechanism, and the second locking mechanism includes a second locking member (not shown in the figure); when the circuit breaker of this embodiment is closed, the second locking member is directly driven by the operating member 2 to rotate forward so that the second locking protrusion of the second locking member protrudes outside the housing 1; when the circuit breaker of this embodiment is opened, the second locking member is directly driven by the operating member 2 to rotate reversely so that the second locking protrusion moves towards the inside of the housing 1; when the circuit breaker of this embodiment is in the closed state, the operating member 2 is directly in limit cooperation with the second locking member to limit the reverse rotation of the second locking member. Further, when the circuit breaker of this embodiment is closed, the second locking member forearm of the second locking member is directly driven by the operating member 2 to make the second locking member rotate forward. Further, when the circuit breaker of this embodiment is in the open state, the second locking member is directly driven by the operating member 2 pulled at the opening position to rotate reversely, and the first locking member 14 is driven by the reversely rotating second locking member to move towards the inside of the housing 1; that is, when the circuit breaker of this embodiment is in the open state and the operating member 2 is pulled at the opening position, the operating member 2 drives the second locking member to rotate reversely at the same time, and the second locking member drives the first locking member 14 to move towards the inside of the housing 1 at the same time.

[0126] Further, when the operating member 2 is at the opening position, there is a free stroke between the operating member 2 and the front connecting cap 3-0501 of the ejector rod 3-05, allowing the operating member 2 to move relative to the ejector rod 3-05 towards the outside of the housing 1, so that the operating member 2 can drive the first locking member 14 to move towards the inside of the housing 1 through the unlocking mechanism 9 or the second locking member at the opening position. Specifically, when the operating member 2 is at the opening position, there is a free stroke between the operating member parting wall of the operating member 2 and the front connecting cap 3-0501.

[0127] It should be noted that in the description of the present utility model, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which it is usually placed during use. It is only for the convenience of description and does not indicate that the device or component referred to must have a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be construed as indicating relative importance.

[0128] The above content is a further detailed description of the present utility model in combination with specific preferred embodiments. It cannot be determined that the specific implementation of the present utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the present utility model belongs, without departing from the concept of the present utility model, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the protection scope of the present utility model.

Claims

1. An operating system, comprising an operating member (2) arranged to move back and forth and having a closing position and an opening position, an electromagnetic system (3-0), a moving contact mechanism (4-1) having a closing position and an opening position, and a control system (11) connected to the electromagnetic system (3-0); the electromagnetic system (3-0) comprises a magnetic generating component (3-0m) and a top rod (3-05) movably inserted in the middle of the magnetic generating component (3-0m), and the top rod (3-05) is connected to the moving contact mechanism (4-1) by transmission; Features: The operating system further comprises a trigger mechanism (17) connected to the control system (11); the trigger mechanism (17) is triggered by the operating member (2) moving to the closing position and outputs 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 top rod (3-05) drives the moving contact mechanism (4-1) to move to the closing position; when the operating member (2) moves to the opening position, the electromagnetic system (3-0) drives the moving contact mechanism (4-1) to move to the opening position.

2. The operating system according to claim 1, characterized in that: During the process of the operating member (2) moving to the closing position, the push rod (3-05) remains stationary.

3. The operating system according to claim 1, characterized in that: The two ends of the push rod (3-05) are respectively connected to the operating member (2) and the moving contact mechanism (4-1) by transmission; the push rod (3-05) is driven to move by the operating member (2) moving toward the opening position, thereby driving the moving contact mechanism (4-1) to move toward the disconnecting position.

4. The operating system according to claim 2, characterized in that: The operating member (2) comprises an operating member body (2b) for external force operation and an operating member connecting portion (2c); one end of the push rod (3-05) is connected to the operating member connecting portion (2c) and is arranged to move relative to the operating member connecting portion (2c) along the moving direction of the operating member (2).

5. The operating system according to claim 4, characterized in that: The operating member connecting portion (2c) comprises a connecting portion cavity (2-1c); the push 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 brim, and the front brim protrudes radially from one side of the front rod body (3-0500) along the front rod body (3-0500); the front connecting cap (3-0501) is movably arranged in the connecting portion cavity (2-1c), and the side wall of the connecting portion cavity (2-1c) is transmission-coordinated with the front brim, and when the operating member (2) moves from the closing position to the opening position, the push rod (3-05) is driven to move so as to drive the moving contact mechanism (4-1) to move through the push rod (3-05) to disconnect the contact system (4).

6. The operating system according to claim 1, characterized in that: The operating system also includes a rear connecting rod (3-2), one end of the top rod (3-05) is connected to the rear connecting rod (3-2) and moves synchronously, and the rear connecting rod (3-2) is hinged to the contact support (4-10) of the moving contact mechanism (4-1).

7. The operating system according to claim 1, characterized in that: The electromagnetic system (3-0) is a magnetic holding system; the magnetic generating component (3-0m) comprises a coil component (3-01), a magnetic yoke (3-03) arranged around the coil component (3-01) and a permanent magnet (3-04); the permanent magnet (3-04) is sleeved on the outer side of the middle part of the coil component (3-01) and is located between the two electromagnetic coils of the coil component (3-01); the electromagnetic system (3-0) also comprises a moving iron core (3-02) slidably arranged in the middle part of the coil component (3-01); the moving iron core (3-02) The iron core (3-02) is connected to the push rod (3-05) and is arranged to move synchronously, and the two ends of the push rod (3-05) respectively protrude on both sides of the axial direction of the coil assembly (3-01); the electromagnetic system (3-0) also includes a first static iron core and a second static iron core that are arranged relatively along the axial direction of the coil assembly (3-01); when one end of the moving iron core (3-02) is attracted to the first static iron core, the push rod (3-05) is in the first position, and when the moving iron core (3-02) is attracted to the second static iron core, the push rod (3-05) is in the second position.

8. The operating system according to claim 7, characterized in that: The push rod (3-05) comprises a front push rod (3-050) and a rear push rod (3-051); one end of the front push rod (3-050) is inserted into the moving iron core (3-02) and the other end is transmission-connected to the operating member (2); one end of the rear push rod (3-051) is inserted into the moving iron core (3-02) and the other end is transmission-connected to the moving contact mechanism (4-1).

9. The operating system according to claim 1, characterized in that: The operating system further comprises a detection device (7) for detecting the current carried by the moving contact mechanism (4-1) and connected to the control system (11); when the control system (11) detects an overload and / or short-circuit current through the detection device (7), the electromagnetic system (3-0) operates under the control of the control system (11), causing the top rod (3-05) to drive the moving contact mechanism (4-1) to move to a disconnected position.

10. The operating system according to claim 9, characterized in that: The detection device (7) is a manganese copper shunt connected in series with the moving contact mechanism (4-1); or, the detection device (7) is a mutual inductor coupled with the moving contact mechanism (4-1).

11. The operating system according to claim 1, characterized in that: The trigger mechanism (17) is a micro switch.

12. The operating system according to claim 1, characterized in that: The operating system further comprises an operating member reset spring (18), which acts on the operating member (2) to cause the operating member to have a tendency to move toward the opening position.

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