A circuit breaker

Abstract

The application relates to the technical field of circuit protection, in particular to a circuit breaker which comprises an operating mechanism, a lock catch, an elastic torsion piece, a trip catch, a tripping mechanism, a driving mechanism and a reset mechanism. The lock catch is rotatably connected with the operating mechanism. One end of the elastic torsion piece is connected with the operating mechanism, and the other end is connected with the lock catch, and the elastic torsion piece is used for driving the lock catch to rotate and reset. The trip catch can abut against the lock catch. The tripping mechanism comprises an unlocking piece and a pushing piece. The driving mechanism is connected with the unlocking piece, and is used for driving the tripping mechanism to move to abut against the lock catch, and driving the lock catch to rotate in a first direction, so that the lock catch is separated from the trip catch. The reset mechanism is used for abutting against the pushing piece, and driving the tripping mechanism to be separated from the lock catch, so that the lock catch is rotated and reset to abut against the trip catch under the action of the elastic torsion piece. The circuit breaker can realize the opening and closing of the circuit by arranging fewer components, and the structure is simple and convenient to assemble.

Description

Technical Field

[0001] This application relates to the field of circuit protection technology, and in particular to a circuit breaker. Background Technology

[0002] A circuit breaker, as a type of circuit protection device, can be used to protect electric motors. When a fault occurs in the motor's circuit, the circuit breaker can automatically disconnect the circuit to protect the motor. A circuit breaker mainly includes an operating mechanism, as well as a trip latch, a latch, and a transmission mechanism mounted on the operating mechanism. When the trip latch and the latch are in contact, the circuit breaker is in the closed (i.e., closed) state. When the trip latch and the latch are separated, the circuit breaker is in the open (i.e., open) state. The circuit breaker's opening action disconnects the circuit. The transmission mechanism is connected to the trip latch and is used to drive the trip latch and the latch to separate, thereby disconnecting the circuit.

[0003] Currently, a typical transmission mechanism includes a gear, two connecting rods, a connecting member, and a flexible limiting member. The gear is hinged to the trip latch via connecting rod one, and the connecting member is hinged to the trip latch via connecting rod two. One end of the flexible limiting member is connected to the operating mechanism, and the other end is connected to the connecting member. When it is necessary to disconnect the circuit, rotating the gear sequentially drives connecting rod one, the trip latch, connecting rod two, and the connecting member to rotate, overcoming the resistance of the flexible limiting member and causing the trip latch to separate from the latch. Because the existing transmission mechanism includes multiple components, the overall structure of the circuit breaker is relatively complex and assembly is difficult. Utility Model Content

[0004] This application provides a circuit breaker with an internal tripping mechanism and a resilient torsion member. When the tripping mechanism contacts the latch, it drives the latch to rotate and separate from the trip latch, thus disconnecting the circuit. After the tripping mechanism disengages from the latch, the resilient torsion member drives the latch to rotate back to its original position and abut against the trip latch, thus closing the circuit. This application provides a circuit breaker that achieves circuit opening and closing with fewer components, resulting in a simple structure and easy assembly.

[0005] This application provides a circuit breaker including an operating mechanism, a latch, a resilient torsion member, a trip latch, a tripping mechanism, a drive mechanism, and a reset mechanism. The latch is rotatably connected to the operating mechanism in a first direction. One end of the resilient torsion member is connected to the operating mechanism, and the other end is connected to the latch. The resilient torsion member is used to drive the latch to rotate and reset. The trip latch can abut against the latch. The tripping mechanism includes an unlocking member and a pushing member. The unlocking member is disposed on one side of the latch along the first direction and includes an unlocking end facing the latch. The unlocking end has an unlocking ramp for contacting the latch to drive the latch to rotate in the first direction. The pushing member is connected to the unlocking member. The drive mechanism is connected to the unlocking member and is used to drive the tripping mechanism to move until the unlocking ramp contacts the latch and drives the latch to rotate in the first direction, so that the latch separates from the trip latch. The reset mechanism abuts against the pushing member and drives the tripping mechanism to separate from the latch, so that the latch rotates and resets under the force of the resilient to abut against the trip latch.

[0006] In some implementations of this application, the unlocking end is further provided with an unlocking groove, and the unlocking slope serves as a groove wall of the unlocking groove. The unlocking groove is used to accommodate the latch so that the latch contacts the unlocking slope.

[0007] In some implementations of this application, a slide rail extending along a first direction is also included, and the tripping mechanism further includes a sliding member connected to the slide rail in a slidable manner along the first direction.

[0008] In some implementations of this application, the tripping mechanism also includes an installation component, which elastically abuts against the structural components of the circuit breaker via an elastic element.

[0009] In some implementations of this application, the unlocking component, the pushing component, and the mounting component are respectively disposed on the sliding component. The unlocking component and the mounting component are respectively disposed on opposite sides of the sliding component. The mounting component and the pushing component are disposed at intervals along the first direction on the sliding component, and the mounting component is closer to the latch than the pushing component.

[0010] In some implementations of this application, the reset mechanism includes a rotating member and a knob. The rotating member is used to rotate about a first axis perpendicular to a first direction. The rotating member has an abutment portion for contacting a pushing member to drive the pushing member to move away from the latch. The knob is fixedly connected to the rotating member and is located outside the circuit breaker housing. The knob is used to drive the rotating member to rotate so that the abutment portion contacts the pushing member.

[0011] In some implementations of this application, the abutment part is a gear.

[0012] In some implementations of this application, the elastic torsion element is a torsion spring.

[0013] In some implementations of this application, a viewing window is provided on the circuit breaker housing, and a marking surface is provided on the mounting component. The viewing window is used to display the marking surface when the latch and trip latch are separated.

[0014] In some implementations of this application, the driving mechanism is an electromagnetic trip unit.

[0015] Compared with the prior art, this utility model has the following beneficial effects:

[0016] The circuit breaker provided in this application mainly includes a tripping mechanism, a driving mechanism, an elastic torsion member, and a reset mechanism. The tripping mechanism includes an unlocking member and a pushing member. The unlocking member has an unlocking ramp, and the driving mechanism is connected to the unlocking member. When it is necessary to disconnect the circuit, the driving mechanism drives the tripping mechanism to move until the unlocking ramp contacts the latch, causing the unlocking ramp to rotate the latch until it separates from the trip latch, thus disconnecting the circuit. When it is necessary to close the circuit, the reset mechanism abuts against the pushing member, driving the tripping mechanism to separate from the latch, so that the latch can rotate and reset under the force of the elastic torsion member until it can abut against the trip latch, thus closing the circuit. This application embodiment achieves circuit disconnection and closure with fewer components, has a simple structure, and is easy to assemble. Attached Figure Description

[0017] Figure 1 The diagram shows connection diagrams of the transmission mechanism, latch, and trip latch in some embodiments of the circuit breaker;

[0018] Figure 2 A three-dimensional view of the circuit breaker in some embodiments of this application is shown. Figure 1 ;

[0019] Figure 3 A three-dimensional view of the circuit breaker in some embodiments of this application is shown. Figure 2 ;

[0020] Figure 4 This application shows schematic diagrams of the internal structure of a circuit breaker in the closed state in some embodiments;

[0021] Figure 5 Show Figure 4 A magnified view of part C in the middle;

[0022] Figure 6 This application shows schematic diagrams of the internal structure of a circuit breaker in the open state in some embodiments;

[0023] Figure 7 Show Figure 6 A magnified view of part D in the middle;

[0024] Figure 8 Schematic diagrams of the reset mechanism and tripping mechanism in some embodiments of this application are shown;

[0025] Figure 9 Schematic diagrams of the reset mechanism and tripping mechanism in other embodiments of this application are shown;

[0026] Figure 10 This application shows electrical principle block diagrams of circuit breakers in some embodiments;

[0027] Figure 11 A schematic diagram of a tripping mechanism provided in some embodiments of this application is shown.

[0028] Figure label:

[0029] 1. Operating mechanism, 2. Jumper, 3. Lock, 31. Connecting part, 32. Contact part, 4. Gear, 5. Link 1, 6. Link 2, 7. Connecting part, 8. Elastic limiting part, 10. Housing, 101. Viewing window, 11. Release mechanism, 111. Unlocking part, 1111. Unlocking groove, 1112. Unlocking ramp, 112. Pushing part, 113. Sliding part, 114. Mounting part, 1141. Marking surface, 12. Drive mechanism, 13. Reset mechanism, 131. Knob, 132. Rotating part, 1321. Abutting part, 133. Guide rail, 134. Slider, 135. Electromagnetic part, 14. Elastic torsion part, 15. Fixed shaft, 16. Slide rail, 17. Elastic part. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0031] In some implementations, reference Figure 1 A typical circuit breaker includes an operating mechanism 1, a trip latch 2, a locking latch 3, and a transmission mechanism. The trip latch 2 and locking latch 3 are in contact with each other, and the transmission mechanism drives the trip latch 2 and locking latch 3 to separate, thus opening the circuit breaker. Specifically, the transmission mechanism includes a gear 4, a first connecting rod 5, a second connecting rod 6, a connecting member 7, and a flexible limiting member 8. The gear 4 is hinged to the trip latch 2 via the first connecting rod 5, and the connecting member 7 is hinged to the trip latch 2 via the second connecting rod 6. One end of the flexible limiting member 8 is connected to the operating mechanism 1, and the other end is connected to the connecting member 7. When the circuit needs to be disconnected, rotating the gear 4 sequentially drives the first connecting rod 5, the trip latch 2, the second connecting rod 6, and the connecting member 7 to rotate, overcoming the resistance of the flexible limiting member 8, causing the trip latch 2 to separate from the locking latch 3, thus opening the circuit breaker. Because the transmission mechanism includes multiple components and requires transmission through multiple components to open the circuit breaker, its structure is relatively complex and assembly is difficult.

[0032] To address the aforementioned issues, this application provides a circuit breaker that can achieve both opening and closing by using fewer components, resulting in a simple structure and easy assembly.

[0033] Figure 2 and Figure 3 A perspective view of a circuit breaker in some embodiments of this application is shown. Figure 4 A schematic diagram of the internal structure of the circuit breaker in the closed state is shown in some embodiments of this application. (Reference) Figures 2 to 4 The circuit breaker provided in one embodiment of this application includes a housing 10, a window 101 opened on the housing 10, and an operating mechanism 1, a trip latch 2, a locking latch 3, a tripping mechanism 11, a driving mechanism 12, and a reset mechanism 13 disposed inside the housing 10.

[0034] Further reference Figures 5 to 7 The latch 3 includes a connecting part 31 and a contact part 32. The contact part 32 can abut against the trip latch 2 (when the circuit breaker is in the closed state, the contact part 32 abuts against the trip latch 2; when the circuit breaker is in the open state, the contact part 32 does not abut against the trip latch 2). The connecting part 31 is rotatably connected to the operating mechanism 1 through an elastic torsion member 14. The operating mechanism 1 is provided with a first direction (e.g., Figure 4 A fixed shaft 15 extends (as shown in the X direction). An elastic torsion member 14 and a latch 3 are both fitted onto the fixed shaft 15, and the latch 3 can rotate around the fixed shaft 15. One end of the elastic torsion member 14 is connected to the operating mechanism 1, and the other end is connected to the latch 3. The elastic torsion member 14 is used to drive the latch 3 to rotate and reset. For example, the elastic torsion member 14 is a torsion spring. When the latch 3 and the latch 2 abut against each other, the torsion spring is in its natural state (i.e., the torsion spring does not generate torsion and does not store elastic potential energy). When the latch 3 rotates around the fixed shaft 15, the torsion spring twists under the drive of the latch 3. At this time, a certain amount of elastic potential energy is stored in the torsion spring. Releasing this elastic potential energy can drive the latch 3 to rotate and reset.

[0035] refer to Figure 4 The tripping mechanism 11 includes an unlocking component 111, a pushing component 112, a sliding component 113, and a mounting component 114. The unlocking component 111 is disposed on one side of the latch 3 along a first direction. The unlocking component 111 includes an unlocking groove 1111 and an unlocking inclined surface 1112 at its end facing the latch 3. The unlocking inclined surface 1112 serves as a groove wall of the unlocking groove 1111. The unlocking groove 1111 is used to accommodate the connecting portion 31, so that the unlocking inclined surface 1112 contacts the connecting portion 31. Figure 7 As shown. The mounting component 114 is provided with a marking surface 1141. The drive mechanism 12 is connected to the tripping mechanism 11. The drive mechanism 12 is used to drive the tripping mechanism 11 to move to contact the latch 3 and drive the latch 3 to rotate around the first direction so that the latch 3 is separated from the tripping latch 2, thereby disconnecting the circuit breaker (i.e., the circuit breaker is in the open state).

[0036] refer to Figure 6The reset mechanism 13 includes a knob 131 and a rotating member 132, the rotating member 132 having an abutment portion 1321. Exemplarily, the abutment portion 1321 is a gear. The knob 131 is exposed outside the housing 10 and is fixedly connected to the rotating member 132. The rotating member 132 can rotate around a first axis (e.g., ...) under the drive of the knob 131. Figure 6 (As shown in L1) Rotate (rotation direction as shown in L1) Figure 6 As shown in the S direction, the first axis is perpendicular to the first direction. When the rotating member 132 rotates, the abutting part 1321 can rotate to abut against the pushing member 112 and drive the pushing member 112 to move away from the latch 3, so as to drive the tripping mechanism 11 to separate from the latch 3. The reset mechanism 13 is used to drive the tripping mechanism 11 to separate from the latch 3, so that the latch 3 can rotate and reset under the force of the elastic torsion member 14 to abut against the trip latch 2 (at this time, when the circuit breaker is in the open state, the latch 3 and the trip latch 2 do not abut against each other. When the circuit breaker returns to the closed state, the trip latch 2 rotates to abut against the latch 3), so that the circuit breaker returns from the open state to the closed state (i.e., from the open state to the closed state).

[0037] When a fault occurs in the circuit and it needs to be disconnected, the drive mechanism 12 is activated, driving the tripping mechanism 11 towards the direction of the latch 3 (e.g., Figure 4 (As shown in direction A) The mechanism moves linearly until it contacts the connecting part 31 on the latch 3, so that the release mechanism 11 drives the latch 3 in the release direction (as shown in direction A). Figure 5 Rotate the circuit breaker (as shown in the R direction) until contact 32 separates from trip 2. At this point, the circuit breaker is in the open state (i.e., tripped state). Figure 6 As shown, this disconnects the circuit. At this time, the position of the marking surface 1141 on the mounting 114 corresponds exactly to the viewing window 101. When the operator can observe the marking surface 1141 through the viewing window 101, it indicates that the circuit is disconnected. When the fault is cleared and the circuit needs to be closed, the reset mechanism 13 drives the tripping mechanism 11 in a direction away from the latch 3 (e.g., ...). Figure 4 Move the tripping mechanism 11 (as shown in direction B) until it separates from the connecting part 31 on the latch 3. At this time, the latch 3, under the action of the elastic torsion member 14, rotates back to the contact part 32 so that it can abut against the tripping latch 2, so that the circuit breaker returns to the closed state (i.e., the closed state). Figure 4 As shown, this achieves circuit closure. The embodiments of this application, by setting a tripping mechanism and an elastic torsion member, can achieve circuit opening and closing, resulting in a simple structure and easy assembly.

[0038] The specific structure of the reset mechanism 13 in this application is not limited to that described above. As long as the reset mechanism 13 can drive the release mechanism 11 to separate from the latch 3, it is within the protection scope of this application.

[0039] For example, refer to Figure 8 The reset mechanism 13 includes a guide rail 133, a slider 134, and a cylinder (not shown in the figure). The guide rail 133 extends along a first direction, and the slider 134 is slidably connected to the guide rail 133 along the first direction. The slider 134 is connected to the cylinder, and the slider 134 can slide along the guide rail 133 under the drive of the cylinder until it abuts against the pusher 112, and drive the pusher 112 to move away from the latch 3, so as to drive the release mechanism 11 to separate from the latch 3.

[0040] For example, refer to Figure 9 The reset mechanism 13 includes an electromagnetic component 135 and a magnetic pusher 112. The electromagnetic component 135 is closer to the latch 3 than the pusher 112. When the electromagnetic component 135 is energized, it generates the same magnetism as the pusher 112, thus creating a repulsive force on the pusher 112. Under the action of this repulsive force, the pusher 112 moves away from the latch 3, thereby driving the release mechanism 11 to separate from the latch 3.

[0041] In some possible implementations, refer to Figure 4 The circuit breaker provided in this application embodiment further includes a slide rail 16 extending along a first direction, and a sliding member 113 on the tripping mechanism 11 is slidably connected to the slide rail 16. The sliding member 113 can move linearly along the slide rail 16 to make the tripping mechanism 11 contact or separate from the latch 3. By providing the slide rail 16, this application embodiment can play a guiding role to prevent the sliding member 113 from deviating during movement. This application embodiment may also omit the slide rail 16, as long as the tripping mechanism 11 can move to contact or separate from the latch 3, it is within the protection scope of this application.

[0042] In some possible implementations, refer to Figure 4 The circuit breaker provided in this application embodiment also includes an elastic element 17. Exemplarily, the elastic element 17 is a spring. The mounting member 114 elastically abuts against a structural member on the circuit breaker via the elastic element 17. Exemplarily, the structural member can be the circuit breaker housing 10 or the operating mechanism 1. The elastic element 17 can apply a force away from the latch 3 to the mounting member 114 to prevent the latch 3 from separating from the trip latch 2 due to accidental movement of the sliding member 113 when no fault has occurred in the circuit, thus avoiding the problem of accidental circuit disconnection. This application embodiment is not limited to providing an elastic element 17; pneumatic or hydraulic components can also be used, as long as they can apply a force away from the latch 3 to the mounting member 114 to prevent accidental movement of the tripping mechanism 11, all are within the protection scope of this application.

[0043] In some possible implementations, refer to Figure 10The driving mechanism 12 is an electromagnetic trip unit. In this application, the driving mechanism 12 is not limited to an electromagnetic trip unit; it can also be a cylinder or a hydraulic cylinder. As long as the driving mechanism 12 can drive the trip mechanism 11 to contact the latch 3 and rotate the latch 3 around the first direction, it is within the scope of protection of this application. The circuit breaker provided in this embodiment also includes a protection module, which includes a current transformer. The current transformer is used to collect the current signal in the circuit to determine whether a fault has occurred in the circuit. The protection module is electrically connected to the electromagnetic trip unit. When the current transformer detects a fault in the circuit, the protection module sends a signal to the electromagnetic trip unit, which activates, driving the trip mechanism 11 to contact the latch 3 on the operating mechanism 1 and causing the latch 3 to separate from the trip latch 2, thereby opening the contacts in the circuit and disconnecting the circuit. When the fault in the circuit is cleared, the reset mechanism 13 drives the trip mechanism 11 to separate from the latch 3 on the operating mechanism 1, causing the latch 3 to reset to abut against the trip latch 2, thereby closing the contacts in the circuit and shutting down the circuit.

[0044] In some possible implementations, refer to Figure 11 The unlocking element 111 and the pushing element 112 are respectively disposed on the sliding element 113. The unlocking element 111 and the mounting element 114 are respectively disposed on opposite sides of the sliding element 113. The mounting element 114 and the pushing element 112 are spaced apart along the first direction on the sliding element 113, and the mounting element 114 is closer to the latch 3 than the pushing element 112. In this embodiment, the setting position of the unlocking element 111 is not limited to the position described in this embodiment. For example, in addition to being disposed on the bottom surface of the sliding element 113, the unlocking element 111 can also be disposed on the side surface of the sliding element 113. As long as the unlocking element 111 can contact the latch 3 to drive the latch 3 to rotate and separate from the jump latch 2, it is within the protection scope of this application. In this embodiment, the setting position of the pushing element 112 is not limited to the position described in this embodiment. For example, the pushing element 112 can also be disposed on the side surface of the mounting element 114. As long as the reset mechanism 13 can abut against the pushing element 112 to drive the release mechanism 11 to separate from the latch 3, it is within the protection scope of this application.

[0045] In summary, the circuit breaker provided in this application embodiment can achieve circuit opening and closing with fewer components. When it is necessary to open the circuit, the drive mechanism 12 drives the tripping mechanism 11 to move until it contacts the latch 3, so that the tripping mechanism 11 drives the latch 3 to rotate and separate from the trip latch 2, thereby opening the circuit. When it is necessary to close the circuit, the reset mechanism 13 drives the tripping mechanism 11 to separate from the latch 3, so that the latch 3 can rotate and reset under the force of the elastic torsion member 14 to abut against the trip latch 2, thereby closing the circuit. This application embodiment can achieve circuit opening and closing with fewer components, has a simple structure, and is easy to assemble.

[0046] The specific embodiments described above illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification. Although the description of this application is presented in conjunction with some embodiments, this does not mean that the features of this application are limited to this embodiment. On the contrary, the purpose of describing the application in conjunction with embodiments is to cover other options or modifications that may be derived based on the claims of this application. This application may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this application, some specific details have been omitted in the description. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0047] In the embodiments of this application, the term "first" is used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" may explicitly or implicitly include one or more of that feature.

[0048] In the embodiments of this application, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0049] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium.

[0050] In the description of this application, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0051] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0052] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A circuit breaker characterized by, include: Operating mechanism; A latch, the latch being rotatably connected to the operating mechanism about a first direction; An elastic torsion member is connected at one end to the operating mechanism and at the other end to the latch. The elastic torsion member is used to drive the latch to rotate and reset. The jump buckle can abut against the lock; The release mechanism includes an unlocking component and a pushing component. The unlocking component is disposed on one side of the latch along the first direction. The unlocking component includes an unlocking end facing the latch. The unlocking end is provided with an unlocking ramp. The unlocking ramp is used to contact the latch to drive the latch to rotate around the first direction. The pushing component is connected to the unlocking component. A driving mechanism, connected to the unlocking component, is used to drive the release mechanism to move until the unlocking ramp contacts the latch, and to drive the latch to rotate around the first direction so that the latch separates from the jump latch; A reset mechanism is used to abut against the pusher and drive the release mechanism to separate from the latch, so that the latch rotates back to abut against the snap fastener under the force of the elastic torsion member.

2. The circuit breaker of claim 1, wherein, The unlocking end is also provided with an unlocking groove, and the unlocking slope serves as a groove wall of the unlocking groove. The unlocking groove is used to accommodate the latch so that the latch contacts the unlocking slope.

3. The circuit breaker of claim 2, wherein, It also includes a slide rail extending along the first direction, and the tripping mechanism further includes a slider connected to the slide rail in a slidable manner along the first direction.

4. The circuit breaker of claim 3, wherein, The tripping mechanism also includes an installation component, which elastically abuts against the structural components of the circuit breaker via an elastic element.

5. The circuit breaker of claim 4, wherein, The unlocking member, the pushing member, and the mounting member are respectively disposed on the sliding member. The unlocking member and the mounting member are respectively disposed on opposite sides of the sliding member. The mounting member and the pushing member are spaced apart on the sliding member along the first direction, and the mounting member is closer to the latch than the pushing member.

6. The circuit breaker of any one of claims 3 to 5, wherein, The reset mechanism includes: A rotating component is used to rotate about a first axis, which is perpendicular to the first direction. The rotating component is provided with an abutting part, which is used to contact the pushing component to drive the pushing component to move away from the latch. A knob is fixedly connected to the rotating component. The knob is located outside the housing of the circuit breaker. The knob is used to drive the rotating component to rotate so that the abutment part contacts the pusher.

7. The circuit breaker of claim 6, wherein, The abutting part is a gear.

8. The circuit breaker of claim 1, wherein, The elastic torsion element is a torsion spring.

9. The circuit breaker of claims 4 or 5, wherein, The circuit breaker housing has a viewing window, and the mounting component has a marking surface. The viewing window is used to display the marking surface when the latch and the trip latch are separated.

10. The circuit breaker of any one of claims 1-5, wherein, The driving mechanism is an electromagnetic trip unit.

Images