Electromagnetic driving mechanism and circuit breaker

Abstract

The utility model discloses an electromagnetic driving mechanism and a circuit breaker, and relates to the technical field of circuit breakers, the electromagnetic driving mechanism comprises a machine, an electromagnetic driving mechanism, a first contact structure, a second contact structure and a reset structure; according to the technical scheme, the rocker structure is driven to move under the power output of the electromagnetic driving structure, then the first contact structure is driven to rotate to be in contact with and buckled with the second contact structure, the reset structure is driven to move through the power output of the electromagnetic driving structure, and the first contact structure and the second contact structure are released. By means of transmission between the rod pieces, the transmission efficiency of the opening and closing mechanism is rapidly achieved, the space occupied by the opening and closing mechanism in the machine body is reduced, and the reliability of the mechanism is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breakers, in particular to an electromagnetic driving mechanism and a circuit breaker. Background Art

[0002] The electric opening and closing mechanism of the circuit breaker in the related technology mainly includes motor-driven opening and closing and electromagnet-driven opening and closing. When the motor drives the opening and closing, the driving component is the motor, and the opening and closing mechanism in the related technology is mostly composed of a gear structure. When the motor outputs power for opening and closing, it takes a long time to complete the opening and closing action. In addition, the structure is complex and the opening and closing efficiency is low, resulting in low reliability of the mechanism. Utility Model Content

[0003] The main purpose of the utility model is to provide an electromagnetic drive mechanism and a circuit breaker, aiming to improve the transmission efficiency of the opening and closing mechanism and improve the reliability of the mechanism.

[0004] To achieve the above-mentioned purpose, the electromagnetic drive mechanism proposed in the utility model comprises:

[0005] A machine body, wherein the machine body is provided with a rocker structure;

[0006] An electromagnetic drive structure, wherein an output end of the electromagnetic drive structure abuts against the rocker structure;

[0007] a first contact structure, wherein the first contact structure is rotatably connected to the body, and the first contact structure is connected to the rocker structure via a connecting portion;

[0008] a second contact structure, wherein the second contact structure is arranged on one side of the first contact structure;

[0009] A reset structure, the reset structure is installed on the body, and the reset structure is located at one side of the output end of the electromagnetic drive structure;

[0010] Wherein, the first contact structure includes a lock buckle, the lock buckle is rotatably arranged on the body, the lock buckle abuts against the connecting portion, and contacts with the reset structure.

[0011] In one embodiment, the first contact structure further includes a receiving rod and a first contact, the receiving rod is rotatably disposed on the body, the first contact is disposed at one end of the receiving rod, and the connecting portion is rotatably connected to the other end of the receiving rod.

[0012] In one embodiment, the receiving rod is connected to the machine body via a rotating shaft, and the locking buckle is rotatably connected to the rotating shaft and is arranged in parallel with the receiving rod.

[0013] In one embodiment, a telescopic portion is connected to a side of the receiving rod away from the second contact structure, and a portion of the telescopic portion away from the receiving rod is connected to the machine body.

[0014] In one embodiment, the rocker structure includes a rotating body and a rocker handle, the rotating body is rotatably arranged on the body, the rocker handle is connected to the side of the rotating body, and one end of the rocker handle extends out of the body, the connecting part is movably connected to the rotating body, and the electromagnetic drive structure drives the rotating body to rotate.

[0015] In one embodiment, the rocker structure further includes a linkage part and a transmission part, the linkage part is partially penetrated through the rotating body and partially penetrated through the connecting part, the transmission part is provided on the rotating body, and the output end of the electromagnetic drive structure abuts against the transmission part.

[0016] In one embodiment, the reset structure also includes a rotating part and a driven part, the rotating part is rotatably arranged on the body, the driven part is rotatably arranged on the body, the rotating part and the driven part are spaced apart, and the rotating part is arranged on one side of the rotating body, and the rotating part is located on the output end side of the electromagnetic driving structure.

[0017] In one embodiment, a first torsion spring is provided at the rotation center of the rotating body, a first extension portion is provided on the first torsion spring, and the first extension portion is connected to the rotating portion.

[0018] In one embodiment, the side of the lock buckle facing the driven part is provided with a limiting groove for accommodating the driven part, and the rotation center of the lock buckle is provided with a second torsion spring, and the second torsion spring is provided with a third extension part and a fourth extension part, the third extension part is in contact with the driven part, and the fourth extension part is clamped on the side of the lock buckle.

[0019] The utility model also provides a circuit breaker, which comprises an electromagnetic driving mechanism.

[0020] The technical solution of the utility model drives the rocker structure to move under the power output of the electromagnetic drive structure, and then drives the first contact structure to rotate to achieve contact and engagement with the second contact structure. The power output of the electromagnetic drive structure drives the reset structure to move, and the first contact structure and the second contact structure are disengaged. Relying on the transmission between the rods, the transmission efficiency of the opening and closing mechanism is quickly realized, and the space occupied by the opening and closing mechanism in the machine body is reduced, thereby improving the reliability of the mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the front view of an embodiment of the electromagnetic drive mechanism provided by the utility model;

[0023] Figure 2 A rear structural schematic diagram of an embodiment of the electromagnetic drive mechanism provided by the utility model;

[0024] Figure 3 A schematic diagram of the structure of the electromagnetic drive mechanism in the open state in an embodiment of the utility model;

[0025] Figure 4 A partially enlarged structural schematic diagram of the electromagnetic drive mechanism in an embodiment of the utility model in the open state;

[0026] Figure 5 A schematic structural diagram of a closed state of an electromagnetic drive mechanism according to an embodiment of the present invention;

[0027] Figure 6 This is a partial enlarged structural schematic diagram of the closed state of an embodiment of the electromagnetic drive mechanism provided by the utility model.

[0028] Description of Figure Numbers:

[0029] 100. Electromagnetic drive mechanism; 10. Machine body; 11. Arc-shaped notch; 20. Second contact structure; 30. Lock; 31. Second torsion spring; 32. Limiting notch; 40. First contact structure; 41. Telescopic part; 42. Receiving rod; 43. First contact; 44. Limiting part; 50. Electromagnetic drive structure; 60. Connecting part; 70. Rocker structure; 71. First torsion spring; 72. Rotating body; 73. Rocker; 74. First torsion spring; 75. Linkage part; 80. Reset structure; 81. Rotating part; 82. Driven part; 90. Electronic tripping device.

[0030] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0034] The utility model provides an electromagnetic driving mechanism.

[0035] See also Figure 3 In one embodiment of the utility model, the electromagnetic drive mechanism comprises:

[0036] A machine body 10, wherein a rocker structure 70 is provided on the machine body 10;

[0037] An electromagnetic drive structure 50, wherein an output end of the electromagnetic drive structure 50 abuts against the rocker structure 70;

[0038] A first contact structure 40, wherein the first contact structure 40 is rotatably connected to the body 10, and the first contact structure 40 is connected to the rocker structure 70 via a connecting portion 60;

[0039] A second contact structure 20, wherein the second contact structure 20 is disposed on one side of the first contact structure 40;

[0040] A reset structure 80, wherein the reset structure 80 is installed on the body 10, and the reset structure 80 is located at one side of the output end of the electromagnetic drive structure 50;

[0041] The first contact structure 40 includes a lock buckle 30 , and the lock buckle 30 is rotatably disposed on the body 10 . The lock buckle 30 abuts against the connecting portion 60 and contacts the reset structure 80 .

[0042] like Figure 1 and Figure 3 As shown, a working chamber for accommodating the rocker structure 70 , the electromagnetic drive structure 50 , the first contact structure 40 , the second contact structure 20 and the reset structure 80 is provided in the body 10 .

[0043] It can be understood that the electromagnetic drive structure 50 includes a shell, a moving iron core and an electromagnetic module. The moving iron core is slidably disposed in the shell and extends out of the shell. The moving iron core abuts against the rocker structure 70. The electromagnetic module is disposed in the shell and connected to the power supply circuit.

[0044] It can be understood that when the electromagnetic module is connected to the power circuit, the electromagnetic module works to generate a force on the moving iron core, pushes the moving iron core to move, and then drives the rocker structure 70 to move.

[0045] It should be noted that an electronic tripping device 90 is provided in the body 10, and the electronic tripping device 90 is provided on the first contact structure 40, so that when the circuit is overloaded or short-circuited, the first contact structure 40 and the second contact structure 20 can be quickly separated to achieve tripping protection.

[0046] like Figure 3 As shown, the second contact structure 20 includes a support body and a second contact, the support body is connected to one side of the electronic trip device 90, and the second contact is connected to the side of the support body close to the first contact structure 40 to facilitate the contact between the first contact 43 and the second contact.

[0047] The technical solution of the utility model drives the rocker structure 70 to move under the power output of the electromagnetic drive structure 50, and then drives the first contact structure 40 to rotate to achieve contact and engagement with the second contact structure 20. The reset structure 80 is driven to move by the power output of the electromagnetic drive structure 50 to achieve the disengagement of the first contact structure 40 and the second contact structure 20. Relying on the transmission between the rods, the transmission efficiency of the opening and closing mechanism is quickly realized, and the space occupied by the opening and closing mechanism in the body 10 is reduced, thereby improving the reliability of the mechanism.

[0048] In one embodiment, the first contact structure 40 further includes a receiving rod 42 and a first contact 43 , the receiving rod 42 is rotatably disposed on the body 10 , the first contact 43 is disposed at one end of the receiving rod 42 , and the connecting portion 60 is rotatably connected to the other end of the receiving rod 42 .

[0049] It can be understood that when the rocker structure 70 moves driven by the electromagnetic drive structure 50, the connecting part 60 moves synchronously, thereby driving the receiving rod 42 to rotate, so that the first contact 43 and the second contact structure 20 are in contact and closed. Through the synchronous rotation between the rods, the power transmission efficiency is improved, the space occupied in the body 10 is reduced, and the reliability of the mechanism is improved.

[0050] In one embodiment, the receiving rod 42 is connected to the machine body 10 via a rotating shaft, and the lock buckle 30 is rotatably connected to the rotating shaft and is arranged in parallel with the receiving rod 42 .

[0051] It can be understood that when a closing operation is required, the electromagnetic drive structure 50 outputs power to drive the rocker structure 70 to move, and then drives the connecting part 60 to move, so that the receiving rod 42 rotates clockwise, thereby driving the first contact 43 to rotate, and releasing the closing of the second contact structure 20. At the same time, as the receiving rod 42 rotates, the lock 30 rotates synchronously and in the same direction, so that the lock 30 is always in contact with the connecting part 60, thereby ensuring that the first contact 43 and the second contact structure 20 are always in a closed state.

[0052] It should be noted that when the first contact 43 and the second contact structure 20 are in a closed state, the electromagnetic drive structure 50 continues to output power, so that the rocker structure 70 continues to move, and the first torsion spring 71 stores force. When the electromagnetic drive structure 50 is reset, the first torsion spring 71 drives the reset structure 80 to move, and makes the reset structure 80 located on one side of the electromagnetic drive structure 50, and as the lock 30 rotates, the lock 30 cooperates with the reset structure 80 to prepare for opening.

[0053] In one embodiment, a telescopic portion 41 is connected to a side of the receiving rod 42 away from the second contact structure 20 , and a portion of the telescopic portion 41 away from the receiving rod 42 is connected to the body 10 .

[0054] It should be noted that the telescopic portion 41 is a spring.

[0055] like Figure 3 As shown, one end of the telescopic portion 41 is connected to the side surface of the receiving rod 42 .

[0056] It can be understood that when performing a closing operation, the receiving rod 42 rotates clockwise, stretching the telescopic part 41 and storing force. When performing an opening operation, the electromagnetic drive structure 50 outputs power to cause the reset structure to move, thereby causing the lock 30 to rotate counterclockwise and separate the lock 30 from the connecting part 60. At this time, the second torsion spring 31 stores force, and the telescopic part 41 releases the elastic force, causing the receiving rod 42 to rotate counterclockwise, causing the first contact 43 to disengage from the second contact structure 20, thereby realizing the opening operation.

[0057] It should be noted that when the receiving rod 42 rotates counterclockwise, it drives the connecting portion 60 to move, and makes the connecting portion 60 abut against the lock buckle 30 again, and the rocker structure 70 moves to reset, thereby resetting the reset structure 80 to prepare for the closing operation.

[0058] like Figure 4 As shown, the receiving rod 42 includes a first receiving rod portion and a second receiving rod portion, the first receiving rod portion is rotatably disposed on the body 10, the second receiving rod portion is rotatably connected to one end of the first receiving rod portion, the other end of the first receiving rod portion is rotatably connected to the connecting portion 60, and the first contact 43 is connected to the side of the second receiving rod portion facing the second contact structure 20.

[0059] like Figure 4 As shown, a first protrusion is provided on the side of the first receiving rod portion, two second protrusions are provided on the side of the second receiving stem portion at intervals, the first protrusion is located between the two second protrusions, and one end of the telescopic portion is connected to one of the second protrusions.

[0060] It can be understood that during the closing operation, when the receiving rod 42 rotates clockwise, the first receiving rod portion and the second receiving rod portion both rotate clockwise, and when the telescopic portion 41 is stretched, the first protrusion contacts the second protrusion that is not connected to the telescopic portion 41, so that during the opening operation, when the lock buckle 30 is driven to rotate by the reset structure 80 and no longer abuts against the connecting portion 60, the telescopic portion 41 is reset to drive the receiving rod 42 to rotate counterclockwise, thereby achieving the disengagement of the first contact 43 and the second contact structure 20 to ensure the disengagement transmission efficiency.

[0061] In one embodiment, the rocker structure 70 includes a rotating body 72 and a rocker handle 73, the rotating body 72 is rotatably disposed on the body 10, the rocker handle 73 is connected to the side of the rotating body 72, and one end of the rocker handle 73 extends out of the body 10, the connecting portion 60 is movably connected to the rotating body 72, and the electromagnetic driving structure 50 drives the rotating body 72 to rotate.

[0062] like Figure 1 to Figure 2 As shown, one end of the crank handle 73 extends out of the body 10, so that the user can manually operate the crank handle 73 to rotate the rotating body 72, and then drive the receiving rod 42 to rotate through the transmission of the connecting part 60, which is convenient for the user to manually perform opening and closing operations.

[0063] It can be understood that the rotating body 72 is arranged to move on the electromagnetic driving structure 50, and when the electromagnetic driving structure 50 outputs power, it drives the rotating body 72 to rotate, drives the crank handle 73 to rotate, and at the same time drives the receiving rod 42 to rotate through the transmission of the connecting part 60, thereby realizing the closing operation of the first contact 43 and the second contact structure 20.

[0064] In one embodiment, the rocker structure 70 also includes a linkage part 75 and a transmission part 71. The linkage part 75 is partially penetrated through the rotating body 72 and partially penetrated through the connecting part 60. The transmission part 71 is provided on the rotating body 72, and the output end of the electromagnetic drive structure 50 abuts against the transmission part 71.

[0065] like Figure 3 to Figure 4 As shown, the transmission part 71 is connected to the rotating body 72, and the transmission part 71 is located at the output end side of the electromagnetic driving structure 50, so that when the electromagnetic driving structure 50 outputs power, it pushes the transmission part 71 to move, thereby causing the rotating body 72 to rotate.

[0066] In order to facilitate the transmission between the rotating body 72 and the connecting portion 60 , the linkage portion 75 is connected between the rotating body 72 and the connecting portion 60 .

[0067] It should be noted that the linkage part 75 is a U-shaped rod, one end of the U-shaped rod is inserted into the rotating body 72, and the other end is inserted into the connecting part 60, the U-shaped rod is movably connected to the rotating body 72, the U-shaped rod is movably connected to the connecting part 60, and one end of the U-shaped rod is inserted into the middle of the connecting part 60.

[0068] It can be understood that when the electromagnetic drive structure 50 drives the transmission part 71 to move, the rotating body 72 rotates, pushing the linkage part 75 to move, so that one end of the receiving rod 42 rotates and moves away from the rotating body 72. At this time, the receiving rod 42 rotates clockwise to facilitate the closing operation.

[0069] It should be noted that if Figure 2 As shown, an arc-shaped slot 11 is provided on the machine body 10 , and a limiting portion 44 is provided on the first receiving rod portion. The limiting portion 44 penetrates the arc-shaped slot 11 .

[0070] It is understandable that, due to the limiting cooperation between the limiting portion 44 and the arc-shaped slot 11 , when the receiving rod 42 rotates, the limiting portion 44 slides in the arc-shaped slot 11 to limit the rotation distance of the receiving rod 42 .

[0071] In one embodiment, the reset structure 80 also includes a rotating part 81 and a driven part 82, the rotating part 81 is rotatably disposed on the body 10, and the driven part 82 is rotatably disposed on the body 10, the rotating part 81 and the driven part 82 are spaced apart, and the rotating part 81 is disposed on one side of the rotating body 72, and the rotating part 81 is located on the output end side of the electromagnetic driving structure 50.

[0072] like Figure 4 As shown, the rotating portion 81 is provided with two branches, and the two branches are arranged at an angle, and the angle is an acute angle.

[0073] It is understandable that when the rotating part 81 rotates, the electromagnetic driving structure 50 outputs power, pushing one of the branches to move, thereby driving another branch to rotate, and then driving the driven part 82 to rotate, so as to achieve the separation of the lock 30 and the connecting part 60.

[0074] like Figure 4 As shown, the driven portion 82 is provided with two branch ends extending toward opposite defense lines.

[0075] It can be understood that, when in the closed state, one branch end of the driven part 82 cooperates with the lock catch 30. When the rotating part 81 rotates to drive the driven part 82 to rotate, the branch end of the driven part 82 drives the lock catch 30 to rotate, thereby causing the lock catch 30 to detach from the connecting part 60, so that the telescopic part 41 releases the elastic force to drive the receiving rod 42 to rotate counterclockwise and complete the opening operation.

[0076] In one embodiment, a first torsion spring 74 is disposed at the rotation center of the rotating body 72 . A first extending portion is disposed on the first torsion spring 74 . The first extending portion is connected to the rotating portion 81 .

[0077] It should be noted that the first extending portion of the first torsion spring 74 is away from the main body of the first torsion spring 74, so that the first torsion spring 74 is in a force storage state.

[0078] like Figure 4As shown, when the closing operation is performed, when the moving iron core is driven to move, the rotating body 72 rotates and limits the rotation of the rotating part 81. At this time, due to the rotation of the rotating body 72, the first torsion spring 74 releases the elastic force, but due to the limitation of the output end of the electromagnetic drive structure, the rotating part 81 cannot be driven to rotate by the first extension part of the first torsion spring 74.

[0079] It can be understood that when the electromagnetic drive structure completes the closing operation, the power supply of the electromagnetic drive structure 50 is disconnected, and the output end of the electromagnetic drive structure 50 is reset, so that the rotating part 81 rotates under the action of the first torsion spring 74. At this time, one branch of the rotating part 81 is located on the output end side of the electromagnetic drive structure, which is convenient for the electromagnetic drive structure to output power to drive the rotating part 81 to rotate. At the same time, the other branch of the rotating part contacts the driven part 82, which is convenient for subsequent opening operations.

[0080] In one embodiment, a limiting groove 32 for accommodating the driven part 82 is provided on the side of the lock buckle 30 facing the driven part 82, and a second torsion spring 31 is provided at the rotation center of the lock buckle 30. A third extension part and a fourth extension part are provided on the second torsion spring 31. The third extension part contacts the driven part 82, and the fourth extension part is clamped on the side of the lock buckle 30.

[0081] like Figure 6 As shown, during the closing operation, after the lock catch 30 rotates clockwise, the limiting notch 32 accommodates one branch end of the driven portion 82 as the lock catch 30 rotates.

[0082] It can be understood that when the rotating part 81 rotates, one branch of the rotating part 81 rotates to push one branch end of the driven part 82 to rotate, thereby causing the other branch end of the driven part 82 to rotate, and driving the lock buckle 30 to rotate, thereby causing the lock buckle 30 to disengage from the abutment with the connecting part 60. At this time, the telescopic part 41 resets and drives the receiving rod to rotate counterclockwise to realize the opening operation.

[0083] It should be noted that the second torsion spring 31 is in a force storage state in the initial state, and the third extension portion and the fourth extension portion of the first torsion spring 31 are far away from each other, and the third extension portion is overlapped on the branch end of the driven portion 82 away from the lock buckle 30.

[0084] It can be understood that when the lock buckle 30 rotates clockwise, the rotation of the lock buckle 30 drives the rotation of the second torsion spring 31, thereby releasing the elastic force of the second torsion spring 31, and the third extension portion and the fourth extension portion approach each other, thereby causing the driven portion 82 to rotate counterclockwise, and cooperate with the clockwise rotation of the lock buckle 30, so that the branch end of the driven portion 82 is embedded in the limiting slot 32, which is convenient for subsequent opening operations and ensures transmission efficiency.

[0085] The utility model also proposes a circuit breaker, which includes an electromagnetic drive mechanism. The specific structure of the electromagnetic drive mechanism refers to the above embodiment. Since the circuit breaker adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.

[0086] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the technical concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An electromagnetic drive mechanism, characterized in that: include: A machine body, wherein the machine body is provided with a rocker structure; An electromagnetic drive structure, wherein an output end of the electromagnetic drive structure abuts against the rocker structure; a first contact structure, wherein the first contact structure is rotatably connected to the body, and the first contact structure is connected to the rocker structure via a connecting portion; a second contact structure, wherein the second contact structure is arranged on one side of the first contact structure; A reset structure, the reset structure is installed on the body, and the reset structure is located at one side of the output end of the electromagnetic drive structure; Wherein, the first contact structure includes a lock buckle, the lock buckle is rotatably arranged on the body, the lock buckle abuts against the connecting portion, and contacts with the reset structure.

2. The electromagnetic drive mechanism according to claim 1, characterized in that: The first contact structure further includes a receiving rod and a first contact, wherein the receiving rod is rotatably disposed on the machine body, the first contact is disposed at one end of the receiving rod, and the connecting portion is rotatably connected to the other end of the receiving rod.

3. The electromagnetic drive mechanism according to claim 2, characterized in that: The receiving rod is connected to the machine body via a rotating shaft, and the locking buckle is rotatably connected to the rotating shaft and is arranged in parallel with the receiving rod.

4. The electromagnetic drive mechanism according to claim 3, characterized in that: A telescopic portion is connected to a side of the receiving rod away from the second contact structure, and a portion of the telescopic portion away from the receiving rod is connected to the machine body.

5. The electromagnetic drive mechanism according to claim 4, characterized in that: The rocker structure includes a rotating body and a rocker handle, the rotating body is rotatably arranged on the body, the rocker handle is connected to the side of the rotating body, and one end of the rocker handle extends out of the body, the connecting part is movably connected to the rotating body, and the electromagnetic driving structure drives the rotating body to rotate.

6. The electromagnetic drive mechanism according to claim 5, characterized in that: The rocker structure also includes a linkage part and a transmission part. The linkage part is partially penetrated through the rotating body and partially penetrated through the connecting part. The transmission part is provided on the rotating body, and the output end of the electromagnetic drive structure abuts against the transmission part.

7. The electromagnetic drive mechanism according to claim 6, characterized in that: The reset structure also includes a rotating part and a driven part, the rotating part is rotatably arranged on the body, the driven part is rotatably arranged on the body, the rotating part and the driven part are spaced apart, and the rotating part is arranged on one side of the rotating body, and the rotating part is located on the output end side of the electromagnetic driving structure.

8. The electromagnetic drive mechanism according to claim 7, characterized in that: A first torsion spring is disposed at the rotation center of the rotating body. A first extending portion is disposed on the first torsion spring. The first extending portion is connected to the rotating portion.

9. The electromagnetic drive mechanism according to claim 7, characterized in that: The side of the lock buckle facing the driven part is provided with a limiting notch for accommodating the driven part, and the rotation center of the lock buckle is provided with a second torsion spring, and the second torsion spring is provided with a third extension part and a fourth extension part, the third extension part is in contact with the driven part, and the fourth extension part is clamped on the side of the lock buckle.

10. A circuit breaker, characterized in that: The electromagnetic drive mechanism comprises any one of claims 1 to 9.

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