breaker

Abstract

The present invention discloses a circuit breaker, which belongs to the electrical field. The circuit breaker includes a housing, an operating module, a functional module, a tripping module, and a leakage detection module; the tripping module includes a first tripping member, a transmission member, and a tripping device; the operating module, the moving contact, the first tripping member, and the transmission member are hinged to the housing, and the first end of the operating module is simultaneously in contact with the moving contact and the first tripping member of the functional module; the leakage detection module is electrically connected to the functional module and the tripping device to transmit leakage information to the tripping device. When the circuit breaker is opened or closed, the moving contact and the first tripping member are driven by the operating module to rotate, and the first tripping member does not contact the transmission member. When the circuit breaker is in leakage protection, the tripping device drives the transmission member to rotate, and the transmission member abuts against the first tripping member and drives it to rotate, and the first tripping member drives the operating module to move until it is separated from the moving contact. The circuit breaker has the advantages of a small number of parts, a small size, a simple structure, and high working reliability, and is convenient for designing a one-bit width.

Description

Technical Field

[0001] The present invention relates to the electrical field, and in particular to a circuit breaker. Background Art

[0002] A circuit breaker is a circuit protection device, usually used to disconnect and connect load circuits and cut off fault circuits. In order to achieve leakage protection of the circuit, the circuit breaker is usually equipped with a leakage protection function. It controls whether the circuit breaker automatically switches from the closed state to the open state by detecting whether the leakage current value in the circuit exceeds the set threshold.

[0003] However, current circuit breakers with leakage protection have at least the following issues: The large number of components makes the internal structure complex and bulky, and the reliability of each component is poor. This is particularly true for single-position circuit breakers with a width of 18 mm, which makes adding leakage protection extremely difficult due to its limited width. Summary of the Invention

[0004] In view of this, the present invention provides a circuit breaker that can solve the above technical problems.

[0005] Specifically, the following technical solutions are included:

[0006] A circuit breaker comprises: a housing, an operating module connected to the housing, a function module, a tripping module and a leakage detection module;

[0007] The functional module includes a moving contact, the trip module includes a first tripping member, a transmission member, and a tripper, the operating module, the moving contact, the first tripping member, and the transmission member are hinged to different positions of the housing, and the first end of the operating module abuts against the moving contact and the first tripping member at the same time;

[0008] The leakage detection module is electrically connected to the functional module and the trip unit, and is used to detect whether the functional module has leakage and transmit the leakage information obtained by the detection to the trip unit;

[0009] The circuit breaker is configured such that, when the circuit breaker is normally opened or closed, the moving contact and the first tripping member can both be driven by the operating module to rotate, and the first tripping member is always out of contact with the transmission member; and, when the circuit breaker performs leakage protection, the tripper responds to the leakage information and drives the transmission member to rotate, the transmission member then abuts against the first tripping member and drives the first tripping member to rotate, and the first tripping member then drives the operating module to move apart from the moving contact, thereby de-energizing the functional module.

[0010] In some possible implementations, the housing includes a partition, and the circuit breaker includes an N-pole unit and an L-pole unit separated by the partition;

[0011] One of the N-pole unit and the L-pole unit is provided with the trip module and the leakage detection module, and the other of the N-pole unit and the L-pole unit is provided with a second trip component;

[0012] The first tripping member is linked to the second tripping member so that when the circuit breaker performs leakage protection, the N-pole unit and the L-pole unit are powered off simultaneously.

[0013] In some possible implementations, the first tripping member includes: a first connecting portion, a first support rod, and a second support rod, wherein the first connecting portion is hingedly connected to the partition, and the first support rod and the second support rod are both connected to the first connecting portion and are spaced apart along the circumferential direction;

[0014] The first support rod is configured such that the first support rod abuts against the first end of the operating module, and the first support rod can be linked with the second tripping member;

[0015] The second support rod is configured so that it can abut against the transmission member.

[0016] In some possible implementations, the first support rod includes: a rod segment and a linkage segment, one end of the rod segment is connected to the first connecting portion, and the other end of the rod segment is connected to the linkage segment;

[0017] A side surface of the rod segment facing the operating module serves as a first abutting surface, and the first abutting surface abuts against a first end of the operating module;

[0018] The linkage section passes through the partition and is linked with the second tripping member.

[0019] In some possible implementations, a side of the first abutting surface close to the first connecting portion has a groove, and the groove is used to accommodate the first end of the operating module when the circuit breaker is in an open state.

[0020] In some possible implementations, the partition has a first stop block, and the first stop block is configured to abut against the second support rod when the circuit breaker is in an open state.

[0021] In some possible implementations, the trip module further includes a first elastic member, the first elastic member is movably connected to the moving contact, and two ends of the first elastic member are respectively in contact with the first trip member and the operating module;

[0022] The first elastic member is configured to reset the first tripping member and the operating module to an initial position, wherein the initial position is a position corresponding to the first tripping member and the operating module when the circuit breaker is in an open state.

[0023] In some possible implementations, the transmission member includes: a second connecting portion, a first support arm, and a second support arm, wherein the second connecting portion is hingedly connected to the partition, and the first support arm and the second support arm are both connected to the second connecting portion and spaced apart along the circumferential direction;

[0024] The first arm is configured to abut against the telescopic rod of the trip unit when the circuit breaker is in leakage protection;

[0025] The second support arm is configured to abut against the second support rod when the circuit breaker performs leakage protection.

[0026] In some possible implementations, the transmission member further includes a third arm;

[0027] The partition has a second stop block, and the second stop block is configured to abut against the third arm when the first tripping member drives the operating module to move to be separated from the moving contact.

[0028] In some possible implementations, the trip module further includes a second elastic member, which is located between the transmission member and the partition and is used to reset the transmission member.

[0029] In some possible implementations, the operating module includes: a handle and a driving member, the handle is hinged to the partition through a handle torsion spring, the first end of the driving member is simultaneously abutted against the first tripping member and the end of the moving contact, and the second end of the driving member is hinged to the handle.

[0030] In some possible implementations, a surface of the first end of the driving member facing the first tripping member and the moving contact serves as a second abutting surface, and the second abutting surface is a plane.

[0031] In some possible implementations, the functional module further includes: a static contact and a third elastic member;

[0032] The movable contact is movably connected to the partition, and the movable contact is configured to be able to contact or separate from the static contact through rotation and translation;

[0033] The third elastic member is located between the moving contact and the partition, and is used to reset the moving contact to a position separated from the static contact.

[0034] In some possible implementations, the moving contact has a waist-shaped hole, and the partition has a first fixed shaft at a corresponding position, and the first fixed shaft passes through the waist-shaped hole;

[0035] The waist-shaped hole is configured to allow the movable contact to move in a rotational and translational manner.

[0036] The beneficial effects of the technical solution provided by the embodiment of the present invention include at least:

[0037] The circuit breaker provided in an embodiment of the present invention comprises a trip module including a first tripping member, a transmission member, and a tripping device, and the first end of the operating module abuts against both the moving contact and the first tripping member. When the operating module is rotated to open and close the circuit breaker, the first tripping member can rotate along with the rotation of the operating module and always avoid contact with the transmission member. This ensures that when the circuit breaker is opened and closed, the tripping module does not operate and does not interfere with the opening and closing actions of the operating module, allowing the circuit breaker to open and close normally. When the leakage detection module detects leakage in the functional module, the tripping device, the transmission member, and the first tripping member are sequentially linked, and the first tripping member ultimately transmits the tripping action to the operating module, causing the operating module to move until it no longer abuts against the moving contact, de-energizing the functional module and thereby achieving leakage protection. The trip module provided in the embodiment of the present invention contains a relatively small number of components and is cleverly linked with the operating module. This not only helps to simplify the internal structural layout of the circuit breaker and reduce the volume of the circuit breaker, but also helps to enhance the operational reliability and linkage of each module, making it easier to prepare a one-bit wide leakage circuit breaker, thereby obtaining a leakage circuit breaker with a small volume and reliable performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0039] Figure 1 A combined diagram of an exemplary circuit breaker provided by an embodiment of the present invention;

[0040] Figure 2 A schematic structural diagram of an exemplary N-pole unit in a normal open state provided by an embodiment of the present invention;

[0041] Figure 3 A schematic structural diagram of an exemplary N-pole unit in a normal closed state provided by an embodiment of the present invention;

[0042] Figure 4A schematic structural diagram of an exemplary N-pole unit in a leakage protection state provided by an embodiment of the present invention;

[0043] Figure 5 An exploded view of an exemplary circuit breaker provided by an embodiment of the present invention;

[0044] Figure 6 A schematic structural diagram of an exemplary L-pole unit provided in an embodiment of the present invention;

[0045] Figure 7 for Figure 6 A schematic structural diagram of the second tripping member involved in the embodiment;

[0046] Figure 8 for Figure 2-Figure 4 A schematic structural diagram of the first tripping member involved in the embodiment;

[0047] Figure 9 A schematic structural diagram of an exemplary partition provided in an embodiment of the present invention;

[0048] Figure 10 A schematic diagram of a partial structure of an exemplary circuit breaker provided in an embodiment of the present invention;

[0049] Figure 11 A schematic structural diagram of an exemplary moving contact provided in an embodiment of the present invention;

[0050] Figure 12 A schematic structural diagram of an exemplary transmission member provided in an embodiment of the present invention;

[0051] Figure 13 Another partial structural diagram of an exemplary circuit breaker provided by an embodiment of the present invention;

[0052] Figure 14 A schematic diagram of another partial structure of an exemplary circuit breaker provided in an embodiment of the present invention;

[0053] Figure 15 A schematic structural diagram of an exemplary handle provided by an embodiment of the present invention, showing the front and back sides of the handle;

[0054] Figure 16 A schematic structural diagram of an exemplary driving member provided by an embodiment of the present invention.

[0055] The reference numerals represent:

[0056] 001, N-pole unit; 002, L-pole unit;

[0057] 1. Shell; 11. Partition; 12. Base; 13. Upper cover;

[0058] 110, first stop block; 111, second stop block;

[0059] 112. First fixed axis; 113. First hinge axis;

[0060] 114, second hinge shaft; 1140, first torque arm limiting groove; 115, third stop block;

[0061] 116. Handle mounting slot; 117. Third hinge axis; 118. Arc-shaped opening; 119. Second connecting block;

[0062] 2. Operation module;

[0063] 21. Handle; 211. Hinge; 212. Opening and closing limiter; 213. Operating unit;

[0064] 2110, torsion spring groove; 2111, first torsion spring hanging on the wall; 2112, second torsion spring hanging on the wall;

[0065] 2113, fourth hinge shaft hole; 2114, third hinge shaft hole;

[0066] 22. Driving member; 220. Second abutting surface;

[0067] 221, first driving part; 2211, main body section; 2212, connecting end;

[0068] 222, second driving unit; 2220, second fixing block;

[0069] 2221, U-shaped body; 2222, fourth hinge axis; 2223, rectangular connecting hole;

[0070] 23. Handle torsion spring;

[0071] 3. Functional module; 31. Moving contact; 32. Static contact; 33. Third elastic member;

[0072] 34, second fixed shaft; 310, waist-shaped hole; 311, abutment section; 3111, abutment shaft;

[0073] 312, connecting section; 3121, first connecting block; 313, guiding section;

[0074] 4. Trip module;

[0075] 41. First release member;

[0076] 410, first connecting portion; 4100, first hinge hole;

[0077] 411, first support rod; 4111, rod body section; 41110, first abutting surface; 41111, first fixing block;

[0078] 4112, linkage section; 4113, groove;

[0079] 412, second pole;

[0080] 42. Transmission parts;

[0081] 420, second connecting portion; 4200, second hinge hole;

[0082] 421, first arm; 422, second arm; 4220, bump;

[0083] 423, third support arm; 4230, third fixing block;

[0084] 43. Release device; 430. Telescopic rod;

[0085] 44. First elastic member; 45. Second elastic member;

[0086] 5. Leakage detection module; 51. Circuit board; 52. Transformer;

[0087] 6. Second release member; 61. Third connecting portion; 62. Third support rod; 620. Linkage end.

[0088] The above drawings illustrate specific embodiments of the present application, which will be described in more detail below. These drawings and the textual description are not intended to limit the scope of the present application in any way, but rather to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0089] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0090] The directional nouns involved in the embodiments of the present invention, such as "up", "down", "side", etc., are generally expressed in the form of Figure 2 The relative relationship of the orientations shown is used as a reference, with the handle being defined as up and the static contact being defined as down. These orientation terms are used only to more clearly describe the relationship between structures, not to describe absolute orientations. The orientation may change when the product is placed in different postures. In addition, the normal opening and closing of the circuit breaker involved in the embodiments of the present invention refers to the normal opening and closing operations of the circuit breaker performed by the user by operating the handle. This normal opening is different from the opening operation corresponding to the circuit breaker leakage situation.

[0091] Current circuit breakers with leakage protection have at least the following problems: a large number of components complicates the internal structure, resulting in a large volume and poor reliability. This is particularly true for single-position circuit breakers with a width of 18 mm, which makes adding leakage protection extremely difficult due to the limited width.

[0092] It can be seen that it is necessary to reduce the number of components of the circuit breaker, thereby simplifying its internal structure, reducing its volume, and at the same time improving the operational reliability and linkage of each component, thereby making it easier to prepare a one-bit wide circuit breaker with leakage protection function, and obtaining a small-sized and reliable leakage circuit breaker.

[0093] In view of the problems existing in current circuit breakers, an embodiment of the present invention provides a circuit breaker with leakage protection function, as shown in the attached Figure 1 -Attached Figure 2 As shown, the circuit breaker includes: a housing 1, an operating module 2 connected to the housing 1, a functional module 3, a trip module 4, and a leakage detection module 5. The functional module 3 includes a movable contact 31, and the trip module 4 includes a first tripping member 41, a transmission member 42, and a tripper 43. The operating module 2, the movable contact 31, the first tripping member 41, and the transmission member 42 are hinged to different positions of the housing 1, and the first end of the operating module 2 abuts against both the movable contact 31 and the first tripping member 41.

[0094] The circuit breaker's opening or closing is controlled by rotating the operating module 2. Since the first end of the operating module 2 abuts the moving contact 31, rotating the operating module 2 to move it to the opening or closing position can drive the moving contact 31 to separate from or contact the static contact 32, causing the functional module 3 to be powered on or off accordingly. The first end of the operating module 2 abuts the first tripping member 41. Thus, when the circuit breaker is opened or closed, the first tripping member 41 can be driven to rotate by the operating module 2, and the first tripping member 41 and the transmission member 42 remain out of contact. In other words, the tripping module 4 does not interfere with the opening and closing actions of the operating module 2, and the tripping module 4 does not operate when the circuit breaker is opened or closed.

[0095] For trip module 4, as shown in the attached Figure 2 As shown, it includes a first tripping member 41, a transmission member 42 and a tripper 43. The first tripping member 41 and the transmission member 42 are both hinged to the housing 1 so that the first tripping member 41 and the transmission member 42 can rotate.

[0096] The leakage detection module 5 is electrically connected to the functional module 3 and the trip unit 43 . The leakage detection module 5 is used to detect whether the functional module 3 has leakage and transmit the leakage information obtained by the detection to the trip unit 43 .

[0097] Based on the above structural arrangement, the circuit breaker provided in the embodiment of the present invention can be configured such that, when the circuit breaker is normally opened or closed, the moving contact 31 and the first tripping member 41 can both be driven by the operating module 2 to rotate, and the first tripping member 41 is always out of contact with the transmission member 42, wherein: Figure 3 The structural arrangement of the circuit breaker in the closed state is illustrated. Figure 4 It can be seen that when the circuit breaker is in leakage protection, the tripper 43 responds to the leakage information and drives the transmission member 42 to rotate. The transmission member 42 then abuts against the first tripping member 41 and drives the first tripping member 41 to rotate. The first tripping member 41 then drives the operating module 2 to move to separate from the moving contact 31. In this way, the moving contact 31 is no longer stopped by the operating module 2, and the moving contact 31 moves to separate from the static contact 32, so that the functional module 3 is powered off and tripping is achieved.

[0098] The circuit breaker provided in an embodiment of the present invention comprises a trip module 4 including a first tripping member 41, a transmission member 42, and a tripper 43, and the first end of the operating module 2 abuts against both the moving contact 31 and the first tripping member 41. When the operating module 2 is rotated to open and close the circuit breaker, the first tripping member 41 rotates with the rotation of the operating module 2 and remains out of contact with the transmission member 42. As a result, the trip module 4 does not operate during opening and closing of the circuit breaker, and the trip module 4 does not interfere with the opening and closing actions of the operating module 2, allowing the circuit breaker to open and close normally. When the leakage detection module 5 detects a leakage in the functional module 3, the tripper 43, the transmission member 42, and the first tripping member 41 sequentially interact, with the first tripping member 41 ultimately transmitting the tripping action to the operating module 2, causing the operating module 2 to move until it no longer abuts against the moving contact 31, de-energizing the functional module and thereby achieving leakage protection. The trip module 4 provided in the embodiment of the present invention contains a relatively small number of components and is cleverly linked with the operating module 2. This not only helps to simplify the internal structural layout of the circuit breaker and reduce the volume of the circuit breaker, but also helps to enhance the operational reliability and linkage of each module, making it easier to prepare a one-bit wide leakage circuit breaker, thereby obtaining a leakage circuit breaker with a small volume and reliable performance.

[0099] It is understandable that, as Figure 5 As shown, the circuit breaker includes an N-pole unit 001 and an L-pole unit 002 . The housing 1 of the circuit breaker includes a partition 11 , a base 12 and an upper cover 13 . The N-pole unit 001 and the L-pole unit 002 are separated by the partition 11 .

[0100] Specifically, one side of the partition 11 is connected to the base 12 to form a first accommodating cavity, and the other side of the partition 11 is connected to the upper cover 13 to form a second accommodating cavity. One of the N-pole unit 001 and the L-pole unit 002 is located in the first accommodating cavity, and the other is located in the second accommodating cavity. For example, the N-pole unit 001 is located in the first accommodating cavity, while the L-pole unit 002 is located in the second accommodating cavity.

[0101] In an embodiment of the present invention, both the N-pole unit 001 and the L-pole unit 002 include an operation module 2 and a functional module 3, and the operation modules 2 of the N-pole unit 001 and the L-pole unit 002 are linked, and the two operate synchronously, so that the functional modules 3 of the N-pole unit 001 and the L-pole unit 002 are powered on and off synchronously.

[0102] For the trip module 4 and the leakage detection module 5, in the circuit breaker provided by the embodiment of the present invention, one of the N pole unit 001 and the L pole unit 002 is arranged with the trip module 4 and the leakage detection module 5, combined with Figure 6 As can be seen, the other of the N-pole unit 001 and the L-pole unit 002 is equipped with a second tripping member 6. This second tripping member 6 works in conjunction with the first tripping member 41 in the tripping module 4, so that when the circuit breaker is in leakage protection mode, both the N-pole unit 001 and the L-pole unit 002 are de-energized simultaneously. The second tripping member 6 abuts against the operating module 2 of the corresponding unit.

[0103] For example, the N-pole unit 001 is provided with a tripping module 4 and a leakage detection module 5 , and the L-pole unit 002 is provided with a second tripping component 6 .

[0104] With the above arrangement, when the circuit breaker performs leakage protection, the trip module 4 in the N-pole unit 001 performs a tripping action. At the same time, the first tripping member 41 of the trip module 4 is linked with the second tripping member 6 of the L-pole unit 002, so that the operating module 2 of the N-pole unit 001 and the operating module 2 of the L-pole unit 002 are each driven by the corresponding tripping member. In this way, the N-pole unit 001 and the L-pole unit 002 can be de-energized at the same time, thereby achieving effective leakage protection.

[0105] In some implementations, such as the attached Figure 8 As shown, the first release member 41 includes: a first connecting portion 410, a first support rod 411 and a second support rod 412, wherein the first connecting portion 410 is hinged to the partition 11, the first support rod 411 and the second support rod 412 are both connected to the first connecting portion 410, and the first support rod 411 and the second support rod 412 are spaced apart along the circumferential direction.

[0106] For the first support rod 411, Figure 4It can be seen that it is configured such that the first support rod 411 abuts against the first end of the operating module 2 and the first support rod 411 can be linked with the second release member 6 , and the first support rod 411 passes through the partition 11 and is linked with the second release member 6 .

[0107] When the circuit breaker is normally opened or closed, the first support rod 411 can be driven by the operating module 2 to rotate. When the circuit breaker is in leakage protection, the first support rod 411 can drive the operating module 2 to slide away from the moving contact 31, so that the functional module 3 is powered off.

[0108] For the second support rod 412, combined Figure 4 It can be seen that it is configured so that the second support rod 412 can abut against the transmission member 42. When the circuit breaker is in leakage protection, the second support rod 412 abuts against the transmission member 42, so that the rotating transmission member 42 can drive the first tripping member 41 to rotate.

[0109] In some examples, such as the attached Figure 8 As shown, the first connecting portion 410 has a first hinge hole 4100. Figure 9 As shown, a first hinge shaft 113 is provided at a corresponding position on the partition 11 . The first hinge shaft 113 is located in the first hinge shaft hole 4100 , thereby realizing the hinge between the first connecting portion 410 and the partition 11 , and the first release member 41 rotates relative to the partition 11 .

[0110] In the embodiment of the present invention, combined with Figure 2 and Figure 4 It can be seen that the first connecting portion 410 is located between the operating module 2 and the moving contact 31, and the upper part of the moving contact 31 and the first support rod 411 are arranged side by side in a direction perpendicular to the partition 11 (that is, the first support rod 411 is located between the upper part of the moving contact 31 and the partition 11), and the top end of the moving contact 31 and the top end of the first support rod 411 are both facing the operating module 2, and the first end of the operating module 2 is simultaneously overlapped on the top surface of the first support rod 411 and the top surface of the moving contact 31.

[0111] In this way, when the circuit breaker is normally opened and closed, the first support rod 411 can be driven by the operating module 2 to rotate to avoid interference with the operating module 2. Moreover, when the circuit breaker is in leakage protection, the first support rod 411 can drive the operating module 2 to move so that the first end of the operating module 2 slides away from the moving contact 31.

[0112] In some implementations, such as the attached Figure 8As shown, the first support rod 411 includes: a rod body segment 4111 and a linkage segment 4112, one end of the rod body segment 4111 is connected to the first connecting part 410, and the other end of the rod body segment 4111 is connected to the linkage segment 4112; the side surface of the rod body segment 4111 facing the operating module 2 serves as the first abutting surface 41110, and the first abutting surface 41110 abuts against the first end of the operating module 2; the linkage segment 4112 passes through the partition 11 and is linked to the second release member 6.

[0113] For the rod segment 4111 , the first abutting surface 41110 on the rod segment 4111 is the top surface of the rod segment 4111 . When the operating module 2 interacts with the first abutting surface 41110 , the first end of the operating module 2 moves on the first abutting surface 41110 .

[0114] In some implementations, such as the attached Figure 8 As shown, a groove 4113 is formed on one side of the first abutting surface 41110 close to the first connecting portion 410 , and the groove 4113 is used to accommodate the first end of the operating module 2 when the circuit breaker is in the open state.

[0115] When the circuit breaker is in the open state, the first end of the operating module 2 abuts against the groove 4113 of the first abutting surface 41110. When the operating module 2 is rotated to switch the circuit breaker to the closed state, the first end of the operating module 2 slides out of the groove 4113 and moves to other planar parts of the first abutting surface 41110.

[0116] Since the other planar portions of the first abutting surface 41110 and the bottom wall of the groove 4113 are not in the same plane, when the first end of the operating module 2 abuts against the groove 4113 and the planar portion thereof abutting against the abutting surface, the force applied by the operating module 2 to the first support rod 411 changes. When the first end of the operating module 2 moves from the groove 4113 to the other planar portions of the first abutting surface 41110, the rotational stroke of the first tripping member 41 is reduced, thereby reducing the rotational stroke of the second support rod 412 accordingly. This is beneficial for controlling a certain gap between the second support rod 412 and the transmission member 42 when the circuit breaker is in the closed state.

[0117] This gap ensures that the trip module 4 does not operate during normal opening and closing of the circuit breaker. Furthermore, it facilitates the rapid contact of the transmission member 42 with the second support rod during leakage protection, thereby improving the efficiency and sensitivity of the circuit breaker leakage protection. Furthermore, when the circuit breaker is in the open state, the groove 4113 accommodates the first end of the operating module 2, thereby limiting the position of the operating module 2 and stabilizing it in the open position.

[0118] Regarding the second support rod 412 of the first tripping member 41, the second support rod 412 extends toward the direction close to the transmission member 42 so as to facilitate the interaction between the second support rod 412 and the transmission member 42. In some implementations, in combination with Figure 2 and attached Figure 9 It can be seen that the partition 11 has a first stop block 110 , and the first stop block 110 is configured to abut against the second support rod 412 when the circuit breaker is in the open state.

[0119] When the circuit breaker is in the open state, the second support rod 412 of the first tripping member 41 is overlapped on the first stop block 110, and the first stop block 110 is used to limit the first tripping member 41. When the circuit breaker is closed, the second support rod 412 rotates in a direction away from the first stop block 110 until a specific gap is formed between the second support rod 412 and the transmission member 42 (see Figure 3 ).

[0120] When the circuit breaker is in leakage protection mode, the transmission member 42 rotates until it contacts the second support rod 412, driving the second support rod 412 to rotate toward the first stop block 110, ultimately opening the circuit breaker. The second support rod 412 can then again engage the first stop block 110, and the first trip member 41 stabilizes in its initial position. The initial position of the first trip member 41 corresponds to the position of the first trip member 41 when the circuit breaker is in the open state.

[0121] As for the linkage section 4112 , one end of the linkage section 4112 is connected to the end of the rod section 4111 , and the other end of the linkage section 4112 extends in a direction perpendicular to the partition 11 so as to pass through the partition 11 and be linked to the second tripping member 6 .

[0122] Among them, as attached Figure 2 and attached Figure 9 As shown, the partition 11 has an arc-shaped opening 118 for accommodating the linkage section 4112 , and the arc direction of the arc-shaped opening 118 is consistent with the movement direction of the linkage section 4112 .

[0123] For the second tripping member 6, in some examples, as shown in the attached Figure 7 As shown, it includes a third connecting portion 61 and a third support rod 62 connected to each other. The third connecting portion 61 is hinged on the partition 11, and the third support rod 62 abuts against the end of the corresponding operating module 2 in the unit where it is located and is linked with the linkage section 4112.

[0124] The structure of the third connecting portion 61 can be the same as that of the above-mentioned first connecting portion 410, and the abutment surface structure provided on the third support rod 62 can be the same as the structure of the first abutment surface 41110 of the above-mentioned first support rod 411. The end of the third support rod 62 away from the third connecting portion 61 is used to be linked with the linkage section 4112 of the first support rod 411, and this end is defined as the linkage end 620.

[0125] In some examples, such as the attached Figure 8 As shown, the linkage section 4112 of the first tripping member 41 is cylindrical. Figure 7 As shown, the linkage end 620 of the third support rod 62 of the second release member 6 is annular, and the cylindrical linkage section 4112 is located inside the annular linkage end 620 .

[0126] When the circuit breaker is opened or closed, since the operating modules 2 of the N-pole unit 001 and the L-pole unit 002 rotate synchronously, the central axis of the linkage section 4112 and the linkage end 620 always coincide with each other and do not interfere with each other.

[0127] During leakage protection of the circuit breaker, since the first tripping member 41 of the N-pole unit 001 rotates before its corresponding operating module 2, the rotating linkage section 4112 will abut against the inner wall of the ring of the linkage end 620, thereby causing the second tripping member 6 to rotate together. Finally, the rotating first tripping member 41 drives the operating module 2 of the N-pole unit 001 to rotate, and the rotating second tripping member 6 drives the operating module 2 of the L-pole unit 002 to rotate. The two rotate together to trip the moving contact 31.

[0128] In some implementations, such as the attached Figure 10 As shown, the trip module 4 provided in this embodiment of the present invention further includes a first elastic member 44. The first elastic member 44 is movably connected to the movable contact 31, and two ends of the first elastic member 44 respectively abut against the first trip member 41 and the operating module 2. The first elastic member 44 is configured to reset the first trip member 41 and the operating module 2 to their initial positions, wherein the initial positions of the first trip member 41 and the operating module 2 correspond to the positions of the first trip member 41 and the operating module 2 when the circuit breaker is in the open state.

[0129] Under normal circumstances, the circuit breaker is in the open state, and the operating module 2 and the trip module 4 are both in the initial position. When the circuit breaker is closed or the circuit breaker leakage protection is activated, the operating module 2 and the trip module 4 will move accordingly. The first elastic member 44 facilitates the reset of the operating module 2 and the trip module 4 that have moved accordingly to the initial position.

[0130] In some examples, such as the attached Figure 10 and attached Figure 11As shown, the first elastic member 44 is a torsion spring, and a second fixed shaft 34 is provided on the upper part of the moving contact 31 close to the first tripping member 41. The spring body of the first elastic member 44 is sleeved on the second fixed shaft 34. One torsion arm of the first elastic member 44 abuts against the first tripping member 41, and the other torsion arm of the first elastic member 44 abuts against the operating module 2.

[0131] Regarding the abutment mode of the torsion arm of the first elastic member 44 on the first release member 41, in some examples, such as the attached Figure 8 and attached Figure 10 As shown, a first fixing block 41111 is provided on the rod segment 4111 of the first support rod 411 of the first release member 41. The first fixing block 41111 is located at one end of the rod segment 4111 near the linkage segment 4112. The first fixing block 41111 comprises an axial segment perpendicularly connected to the surface of the rod segment 4111 facing away from the partition 11, and a limiting segment connected to the axial segment and perpendicular to the central axis of the axial segment. Thus, the limiting segment cooperates with the rod segment 4111 to form a limiting groove. A torsion arm of the first elastic member 44 is positioned within this limiting groove and overlaps the axial segment, thereby achieving abutment between the first elastic member 44 and the first release member 41.

[0132] Regarding the abutment mode of the torsion arm of the first elastic member 44 on the operating module 2, in some examples, such as the attached Figure 10 As shown, the operating module 2, that is, the driving member 22 described below, has a second fixing block 2220. This second fixing block 2220 is perpendicularly connected to the surface of the driving member 22 facing away from the partition 11, and has a limiting groove. The other torsion arm of the second elastic member 45 overlaps in the limiting groove, thereby achieving abutment between the first elastic member 44 and the operating module 2.

[0133] Because the spring body of the first elastic member 44 is sleeved on the second fixed shaft 34, the spring body of the first elastic member 44 can remain stationary when the movable contact 31 rotates. For example, when the circuit breaker is closed, the first end of the operating module 2 drives the movable contact 31 and the first tripping member 41 to rotate, while the position of the spring body of the first elastic member 44 is fixed. The two torsion arms of the first elastic member 44 are compressed by the rotating operating module 2 and the first tripping member 41 to store elastic potential energy, which can be used to reset the first tripping member 41 and the operating module 2 to their initial positions.

[0134] In some possible implementations, such as the attached Figure 12 As shown, the transmission member 42 includes: a second connecting portion 420, a first arm 421 and a second arm 422. The second connecting portion 420 is hinged to the partition 11. The first arm 421 and the second arm 422 are both connected to the second connecting portion 420 and are spaced apart along the circumferential direction. Figure 4As can be seen, the first arm 421 is configured to abut against the telescopic rod 430 of the trip unit 43 when the circuit breaker is in leakage protection mode; the second arm 422 is configured to abut against the second rod 412 when the circuit breaker is in leakage protection mode.

[0135] For example, as shown in the attached Figure 12 As shown, the second connecting portion 420 has a second hinge hole 4200. Figure 9 As shown, a second hinge shaft 114 is provided at a corresponding position on the partition 11 , and the second hinge shaft 114 is located in the second hinge shaft hole 4200 , thereby realizing the hinge between the second connecting portion 420 and the partition 11 , so that the transmission member 42 rotates relative to the partition 11 .

[0136] Combine Figure 4 It can be seen that the first arm 421 extends toward the direction close to the trip unit 43 until the first arm 421 is located above the telescopic rod 430 of the trip unit 43. For example, when the circuit breaker is in leakage protection, the end of the first arm 421 is abutted against the telescopic rod 430.

[0137] The second arm 422 extends toward the second support rod 412 until it is above the second support rod 412. The end of the second arm 422 away from the second connecting portion 420 is always out of contact with the second support rod 412 when the circuit breaker is in the open state or the closed state.

[0138] When the circuit breaker is in leakage protection, the end of the second arm 422 abuts against the end of the second support rod 412. In some examples, such as the attached Figure 12 As shown, the end of the second arm 422 away from the second connecting portion 420 has a protrusion 4220, which is used to abut against the second support rod 412, thereby driving the first release member 41 to rotate, which is beneficial to improving the linkage sensitivity between the first release member 41 and the transmission member 42, making the driving of the first release member 41 smoother.

[0139] Furthermore, the surface of the protrusion 4220 facing the second support rod 412 is arc-shaped, which can achieve the purpose of optimizing the above-mentioned effect.

[0140] In some implementations, such as the attached Figure 12 As shown, the transmission member 42 also includes a third arm 423. Figure 9 As shown, the partition 11 has a second stop block 111 , which is configured to abut against the third arm 423 when the first tripping member 41 drives the operating module 2 to move to separate from the moving contact 31 .

[0141] As mentioned above, combined Figure 4 It can be seen that in the leakage protection state of the circuit breaker, when the transmission member 42 rotates to open the circuit breaker, the third arm 423 of the transmission member 42 is stopped by the second stop block 111, and the second stop block 111 is used to limit and stop the transmission member 42, so that it no longer continues to rotate unnecessarily.

[0142] In some implementations, such as the attached Figure 9 As shown, the partition 11 also has a third stop block 115, which is used to abut against the first arm 421, so that when the circuit breaker is in the non-leakage protection state (i.e., the opening and closing state), there is a gap between the first arm 421 and the telescopic rod 430 of the trip unit 43, and they are always out of contact.

[0143] In some implementations, such as the attached Figure 13 As shown, the trip module 4 provided in the embodiment of the present invention also includes a second elastic member 45, which is located between the transmission member 42 and the partition 11, and is used to reset the transmission member 42 to an initial position, wherein the initial position of the transmission member 42 is its corresponding position when the circuit breaker is in a non-leakage protection state, that is, in an open and closed state.

[0144] When the circuit breaker is in leakage protection mode, the transmission member 42 rotates to compress the second elastic member 45, which stores elastic potential energy. When the functional module 3 is powered off and the circuit breaker is switched to the open state, the second elastic member 45 releases its elastic potential energy, causing the transmission member 42 to rotate in the opposite direction and return to its initial position.

[0145] In some examples, such as the attached Figure 13 As shown, the second elastic member 45 is a torsion spring, and the second hinge shaft 114 has a first torsion arm limiting groove 1140. For example, the first torsion arm limiting groove 1140 is opened on the end face of the second hinge shaft 114 facing away from the partition 11, and the first torsion arm limiting groove 1140 extends in a direction perpendicular to the telescopic direction of the telescopic rod 430.

[0146] The third support arm 423 has a third fixing block 4230 at the end near the second connecting portion 420. The third fixing block 4230 cooperates with the second connecting portion 420 to form a second torsion arm limiting groove. The spring body of the second elastic member 45 is sleeved on the second hinge shaft 114. One torsion arm of the second elastic member 45 is limited in the first torsion arm limiting groove 1140, and the other torsion arm of the second elastic member 45 extends into the second torsion arm limiting groove and abuts against the third support arm 423.

[0147] For the operation module 2, in some possible implementations, such as the attached Figure 2 As shown, the operating module 2 includes: a handle 21 and a driving member 22, as shown in the attached Figure 14As shown, the handle 21 is hinged to the partition 11 via the handle torsion spring 23, the first end of the driving member 22 abuts against the first tripping member 41 and the end of the moving contact 31, and the second end of the driving member 22 is hinged to the handle 21. The first end of the driving member 22 mentioned here is also the first end of the operating module 2 mentioned above.

[0148] By hingedly connecting the handle 21 to the driving member 22, when the handle 21 is turned, the driving member 22 will be driven by the handle 21 to perform rotational and translational motions simultaneously, so that the first end of the driving member 22 pushes the first tripping member 41 and the moving contact 31 to rotate, thereby realizing the opening and closing of the circuit breaker.

[0149] For example, if Figure 14 and attached Figure 15 As shown, the handle 21 includes: a hinge portion 211, a closing and opening limit portion 212 and an operating portion 213 connected in sequence. Figure 9 As shown, the partition 11 has a handle mounting groove 116, and the handle mounting groove 116 extends to the outside of the partition 11, and the handle 21 is assembled in the handle mounting groove 116. Specifically, a third hinge shaft 117 is provided at a corresponding position on the partition 11, and a third hinge shaft hole 2114 corresponding to the third hinge shaft 117 is provided on the hinge portion 211. The third hinge shaft 117 is located in the third hinge shaft hole 2114, so that the hinge portion 211 is hinged to the partition 11 and is located inside the shell 1, and the opening and closing limit portion 212 extends through the partition 11 so that the operating portion 213 is located outside the shell 1, and the user pushes the operating portion 213 to operate the handle 21.

[0150] At least one of the hinged portion 211 and the opening and closing limiting portion 212 of the handle 21 is provided with a handle opening limiting structure and a handle closing limiting structure, and a shell opening limiting structure and a shell closing limiting structure are provided at corresponding positions on the partition 11. In some examples, the handle opening limiting structure and the handle closing limiting structure are respectively provided on opposite sides of the opening and closing limiting portion 212, and a through hole for passing through the opening and closing limiting portion 212 is provided on the top of the partition 11, and the shell opening limiting structure and the shell closing limiting structure are correspondingly arranged on both sides of the through hole. When the circuit breaker is in the opening state, the handle opening limiting structure and the shell opening limiting structure are offset, and the handle 21 is stably maintained in the opening position. When the circuit breaker is in the closing state, the handle closing limiting structure and the shell closing limiting structure are offset, and the handle 21 is stably maintained in the closing position.

[0151] The handle torsion spring 23 always provides a torque to the handle 21 to move in the opening direction, so that the handle 21 is always in the opening position under normal conditions. In some examples, such as the attached Figure 14 and attached Figure 15As shown, the hinge portion 211 of the handle 21 has a torsion spring slot 2110, a first torsion spring wall 2111, and a second torsion spring wall 2112. The ends of the torsion spring slot 2110 extend to the first torsion spring wall 2111 and the second torsion spring wall 2112, respectively. The spring body of the handle torsion spring 23 is embedded in the torsion spring slot 2110 and is located between the hinge portion 211 and the partition 11. The first torsion arm of the handle torsion spring 23 overlaps the first torsion spring wall 2111 and abuts a corresponding position on the partition 11 (for example, the partition 11 has a fixed block to abut the first torsion arm of the handle torsion spring 23). The second torsion arm of the handle torsion spring 23 overlaps the second torsion spring wall 2112 and abuts a corresponding position on the partition 11 (for example, the partition 11 has another fixed block to abut the second torsion arm of the handle torsion spring 23).

[0152] In the embodiment of the present invention, the first end of the driving member 22 is simultaneously in contact with the first tripping member 41 and the top of the moving contact 31. In some examples, such as the attached Figure 16 As shown, the surface of the first end of the driver 22 facing the first trip member 41 and the movable contact 31 serves as the second abutting surface 220, wherein the second abutting surface 220 is a plane. By making the second abutting surface 220 a plane rather than an arc-shaped surface, the contact area between the driver 22 and the movable contact 31 is increased and the friction force is improved. This ensures that the first end of the driver 22 can maintain stable contact with the movable contact 31 in both the open and closed states of the circuit breaker without causing undesirable slippage.

[0153] For the driving member 22 that meets the above structure, in some examples, such as the attached Figure 16 As shown, the driving member 22 includes a first driving portion 221 and a second driving portion 222 connected to each other, and the cross section of the first driving portion 221 is rectangular.

[0154] One end of the first driving portion 221 away from the second driving portion 222 serves as the first end of the driving member 22 , and can abut against the first tripping member 41 and the end of the moving contact 31 , and provide a second abutting surface 220 with a planar structure.

[0155] The end of the second driving portion 222, distal from the first driving portion 221, serves as the second end of the driving member 22. The end of the second driving portion 222 has a fourth hinge axis 2222. The hinge portion 211 of the handle 21 has a fourth hinge axis hole 2113. For example, the fourth hinge axis hole 2113 is located at an edge of the hinge portion 211, which is the side of the hinge portion 211 of the handle 21 that is exposed to the handle mounting slot 116 when the circuit breaker is in the open state. The fourth hinge axis 2222 is located within the fourth hinge axis hole 2113, thereby articulating the driving member 22 and the handle 21.

[0156] For example, if Figure 16As shown, the first driving portion 221 includes a main body section 2211 and two connecting ends 2212. The two connecting ends 2212 are perpendicularly connected to opposite ends of the main body section 2211. The main body section 2211 and the two connecting ends 2212 are both rectangular rod-shaped. One of the connecting ends 2212 is arranged to abut against the end of the first tripping member 41 and the movable contact 31, while the other connecting end 2212 is connected to the second driving portion 222.

[0157] In some examples, the second driving part 222 includes a U-shaped body 2221 and a fourth hinge shaft 2222 connected to the arc-shaped end of the U-shaped body 2221. The fourth hinge shaft 2222 has a rectangular connecting hole 2223 therein, and the rectangular connecting hole 2223 is connected to the U-shaped cavity of the U-shaped body 2221.

[0158] In the assembled state, at least part of the main section 2211 of the first driving part 221 is located in the U-shaped cavity of the U-shaped body 2221, and the corresponding connecting end 2212 of the first driving part 221 is tightly fitted in the rectangular connecting hole 2223 of the fourth hinge shaft 2222 to achieve a tight connection between the first driving part 221 and the second driving part 222.

[0159] In some examples, the first driving part 221 is made of metal, such as stainless steel, and the second driving part 222 is made of plastic. It is easier to form a rectangular connecting hole 2223 on the second driving part 222 made of plastic, which helps to simplify the preparation difficulty of the driving part 22.

[0160] In some possible implementations, such as the attached Figure 2 As shown, the functional module includes: a moving contact 31, a static contact 32 and a third elastic member 33; the moving contact 31 is movably connected to the partition 11, and the moving contact 31 is configured to be able to contact or separate from the static contact 32 through rotation and translation; the third elastic member 33 is located between the moving contact 31 and the partition 11, and the third elastic member 33 is used to reset the moving contact 31 to a position separated from the static contact 32.

[0161] When the circuit breaker is closing, the moving contact 31 first rotates so that the contact point of the moving contact 31 approaches and contacts the contact point of the static contact 32. Then, the moving contact 31 moves horizontally toward the static contact 32 so that the contact point of the moving contact 31 and the contact point of the static contact 32 are in close contact. This helps to improve the connection reliability between the moving and static contacts, which is of great significance for enhancing the operational reliability of the circuit breaker.

[0162] The movable connection between the moving contact 31 and the partition 11 can be achieved in the following ways: Figure 11As shown, the moving contact 31 has a waist-shaped hole 310, and a first fixed shaft 112 is provided at a corresponding position on the partition 11, and the first fixed shaft 112 passes through the waist-shaped hole 310; the waist-shaped hole 310 is configured to allow the moving contact 31 to move in a rotational and translational manner to approach and contact the static contact 32.

[0163] In some examples, the moving contact 31 includes an abutting section 311 , a connecting section 312 , and a guide section 313 connected in sequence. The end of the guide section 313 away from the connecting section 312 has a contact point for contacting the contact point on the stationary contact 32 .

[0164] Regarding the abutment section 311, as shown in the attached Figure 11 As shown, an abutment shaft 3111 is arranged at the top of the abutment section 311 away from the connecting section 312. The abutment shaft 3111 is a cylinder. The arc-shaped surface of the abutment shaft 3111 is used to abut against the second abutment surface 220 of the driving member 22 of the operating module 2. The second abutment surface 220 of the planar structure of the driving member 22 abuts against the abutment shaft 3111 of the arc-shaped structure, so that the operating module 2 drives the moving contact 31 more sensitively and directly, and the movement of the moving contact 31 is smoother and more efficient.

[0165] According to the above structure of the moving contact 31 , the second fixed shaft 34 is vertically connected to the surface of the abutting section 311 facing away from the partition 11 , and the second fixed shaft 34 is adapted to be connected to the spring body of the first elastic member 44 .

[0166] Regarding the connecting section 312, the above-mentioned waist-shaped hole 310 is arranged on the connecting section 312. The width of the waist-shaped hole 310 is adapted to the diameter of the first fixed shaft 112 to allow the moving contact 31 to approach the static contact 32 in a rotational manner. The length of the waist-shaped hole 310 is greater than the diameter of the first fixed shaft 112 to allow the moving contact 31 to approach the static contact 32 in a translational manner.

[0167] In some examples, such as the attached Figure 10 As shown, the third elastic member 33 is a compression spring. A first connecting block 3121 is connected to the side of the connecting section 312 facing away from the second support rod 412 of the first tripping member 41. For example, the first connecting block 3121 is cylindrical. A second connecting block 119 is disposed on the partition 11 at a position opposite the first connecting block 3121. For example, the second connecting block 119 has a fixing groove. One end of the third elastic member 33 is sleeved onto the exterior of the first connecting block 3121, while the other end of the third elastic member 33 is fixedly inserted into the exterior of the second connecting block 119, thereby constraining the third elastic member 33 between the moving contact 31 and the partition 11.

[0168] The third elastic member 33 in the natural state stabilizes the moving contact 31 at a position separated from the static contact 32. When the moving contact 31 moves to contact the static contact 32, the third elastic member 33 is compressed to store elastic potential energy. This elastic potential energy is used to automatically reset the moving contact 31 to its initial position separated from the static contact 32 after the circuit breaker is powered off.

[0169] In some possible implementations, such as the attached Figure 2 As shown, the leakage detection module 5 includes: a circuit board 51 and a mutual inductor 52 . The circuit board 51 is electrically connected to the functional module 3 and the mutual inductor 52 . The mutual inductor 52 is also electrically connected to the functional module 3 . The circuit board 51 is also electrically connected to the trip unit 43 .

[0170] When the current value of the leakage current detected by the transformer 52 reaches a set threshold, the transformer 52 sends the leakage information to the circuit board 51, and the circuit board 51 then transmits the detected leakage information to the trip unit 43, causing the telescopic rod 430 of the trip unit 43 to extend to drive the transmission member 42 to rotate.

[0171] The following is combined with Figure 4 Here is an example description of the working principle of leakage protection of circuit breaker:

[0172] When the trip unit 43 responds to the leakage information from the leakage detection module 5 and drives the transmission member 42 to rotate, the telescopic rod 430 of the trip unit 43 extends upward, driving the first arm 421 to move upward, thereby causing the transmission member 42 to rotate counterclockwise. The counterclockwise rotating transmission member 42 then drives its second arm 422 to move downward until it abuts against the second support rod 412, thereby driving the second support rod 412 to move downward, causing the first tripping member 41 to rotate clockwise. The clockwise rotating first tripping member 41 causes its first support rod 411 to move upward, thereby pushing the first end of the driving member 22 to move in a direction away from the moving contact 31, and finally causing the first end of the driving member 22 to slide away from the moving contact 31. Under the action of the corresponding elastic member, the moving contact 31 moves away from the static contact 32 and resets, achieving tripping. For example, the N pole unit 001 is de-energized and the L pole unit 002 is de-energized at the same time, so that the circuit breaker is de-energized to achieve leakage protection. After the circuit breaker is powered off, the telescopic rod 430 of the tripper 43 is reset, and the transmission member 42, the first tripping member 41, the driving member 22 and the handle 21 are all reset under the action of the corresponding elastic members, and the circuit breaker returns to the open state.

[0173] In summary, the circuit breaker provided by the embodiment of the present invention has the advantages of a small number of parts, a small size, a simple structure, simple assembly, high reliability, etc., and is easy to mass produce. In some examples, the circuit breaker provided by the embodiment of the present invention is a one-width circuit breaker.

[0174] The above description is only for the purpose of facilitating those skilled in the art to understand the technical solution of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A circuit breaker, characterized in that: The circuit breaker comprises: a housing (1), an operating module (2) connected to the housing (1), a functional module (3), a tripping module (4), and a leakage detection module (5); The functional module (3) includes a moving contact (31), the tripping module (4) includes a first tripping member (41), a transmission member (42) and a tripper (43), the operating module (2), the moving contact (31), the first tripping member (41) and the transmission member (42) are respectively hinged to different positions of the housing (1), and the first end of the operating module (2) is simultaneously in contact with the moving contact (31) and the first tripping member (41); The leakage detection module (5) is electrically connected to the functional module (3) and the trip unit (43), and the leakage detection module (5) is used to detect whether the functional module (3) has leakage, and transmit the leakage information obtained by the detection to the trip unit (43); The circuit breaker is configured such that, when the circuit breaker is normally opened or closed, the moving contact (31) and the first tripping member (41) can both be driven by the operating module (2) to rotate, and the first tripping member (41) and the transmission member (42) are always out of contact; and, when the circuit breaker is in leakage protection, the tripping member (43) responds to the leakage information and drives the transmission member (42) to rotate, the transmission member (42) then abuts against the first tripping member (41) and drives the first tripping member (41) to rotate, and the first tripping member (41) then drives the operating module (2) to move to separate from the moving contact (31), so that the functional module (3) is powered off.

2. The circuit breaker according to claim 1, wherein: The housing (1) includes a partition (11), and the circuit breaker includes an N-pole unit (001) and an L-pole unit (002) separated by the partition (11); One of the N-pole unit (001) and the L-pole unit (002) is provided with the tripping module (4) and the leakage detection module (5), and the other of the N-pole unit (001) and the L-pole unit (002) is provided with a second tripping member (6); The first tripping member (41) and the second tripping member (6) are linked together so that when the circuit breaker performs leakage protection, the N-pole unit (001) and the L-pole unit (002) are powered off simultaneously.

3. The circuit breaker according to claim 2, wherein: The first release member (41) comprises: a first connecting portion (410), a first support rod (411) and a second support rod (412); the first connecting portion (410) is hinged to the partition (11); the first support rod (411) and the second support rod (412) are both connected to the first connecting portion (410) and are spaced apart along the circumferential direction; The first support rod (411) is configured such that the first support rod (411) abuts against the first end of the operating module (2), and the first support rod (411) can be linked with the second tripping member (6); The second support rod (412) is configured so that the second support rod (412) can abut against the transmission member (42).

4. The circuit breaker according to claim 3, characterized in that The first support rod (411) comprises: a rod section (4111) and a linkage section (4112); one end of the rod section (4111) is connected to the first connecting portion (410), and the other end of the rod section (4111) is connected to the linkage section (4112); A side surface of the rod body segment (4111) facing the operating module (2) serves as a first abutting surface (41110), and the first abutting surface (41110) abuts against a first end of the operating module (2); The linkage section (4112) passes through the partition (11) and is linked to the second release member (6).

5. The circuit breaker according to claim 4, characterized in that A side of the first abutting surface (41110) close to the first connecting portion (410) has a groove (4113), and the groove (4113) is used to accommodate the first end of the operating module (2) when the circuit breaker is in an open state.

6. The circuit breaker according to claim 3, characterized in that The partition (11) has a first stop block (110), and the first stop block (110) is configured to abut against the second support rod (412) when the circuit breaker is in an open state.

7. The circuit breaker according to claim 2, wherein: The trip module (4) further includes a first elastic member (44), the first elastic member (44) being movably connected to the moving contact (31), and two ends of the first elastic member (44) respectively abutting against the first trip member (41) and the operating module (2); The first elastic member (44) is configured to reset the first trip member (41) and the operating module (2) to an initial position, wherein the initial position is a position corresponding to the first trip member (41) and the operating module (2) in an open state of the circuit breaker.

8. The circuit breaker according to claim 2, wherein: The transmission member (42) comprises: a second connecting portion (420), a first support arm (421) and a second support arm (422), wherein the second connecting portion (420) is hingedly connected to the partition (11), and the first support arm (421) and the second support arm (422) are both connected to the second connecting portion (420) and are spaced apart along the circumferential direction; The first support arm (421) is configured to abut against the telescopic rod (430) of the trip unit (43) when the circuit breaker performs leakage protection; The second support arm (422) is configured to abut against the second support rod (412) of the first tripping member (41) during leakage protection of the circuit breaker.

9. The circuit breaker according to claim 8, characterized in that The transmission member (42) further includes a third support arm (423); The partition (11) has a second stop block (111), and the second stop block (111) is configured to abut against the third support arm (423) when the first tripping member (41) drives the operating module (2) to move to separate from the moving contact (31).

10. The circuit breaker according to claim 8, wherein: The trip module (4) further includes a second elastic member (45), which is located between the transmission member (42) and the partition (11) and is used to reset the transmission member (42).

11. The circuit breaker according to any one of claims 2 to 10, characterized in that: The operating module (2) comprises: a handle (21) and a driving member (22); the handle (21) is hinged to the partition (11) via a handle torsion spring (23); a first end of the driving member (22) is in contact with the first tripping member (41) and the end of the moving contact (31) at the same time; and a second end of the driving member (22) is hinged to the handle (21).

12. The circuit breaker according to claim 11, wherein: The surface of the first end of the driving member (22) facing the first tripping member (41) and the moving contact (31) serves as a second abutting surface (220), and the second abutting surface (220) is a plane.

13. The circuit breaker according to any one of claims 2 to 10, characterized in that: The functional module (3) further includes: a static contact (32) and a third elastic member (33); The movable contact (31) is movably connected to the partition (11), and the movable contact (31) is configured to be able to contact or separate from the static contact (32) through rotation and translation movement; The third elastic member (33) is located between the moving contact (31) and the partition (11), and the third elastic member (33) is used to reset the moving contact (31) to a position separated from the static contact (32).

14. The circuit breaker according to claim 13, wherein: The movable contact (31) has a waist-shaped hole (310), and a first fixed shaft (112) is provided at a corresponding position on the partition (11), and the first fixed shaft (112) passes through the waist-shaped hole (310); The waist-shaped hole (310) is configured to allow the moving contact (31) to move in a rotational and translational manner.

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