Circuit breaker and electrical control cabinet

Abstract

The embodiment of the utility model provides a circuit breaker and an electrical control cabinet. The tripping assembly of the circuit breaker comprises a sliding piece and an elastic piece. The slider is slidably coupled to the housing and is switchable between a first position and a second position. The sliding part is coupled to the operation assembly and extends out of the shell, the length of the sliding part extending out of the shell at the first position is smaller than that of the sliding part extending out of the shell at the second position, and the sliding part can release the operation assembly at the second position. The elastic member is coupled to the housing and the slider, and the elastic member is configured to apply a force to the slider to switch the slider from the first position to the second position. By means of the arrangement, when the circuit breaker is installed on or detached from the electric control cabinet, as long as a gap exists between the circuit breaker and the cabinet body of the electric control cabinet, the sliding piece can move from the first position to the second position under the action of the elastic piece, the operation assembly can be driven to be tripped immediately, and therefore the safety of the circuit breaker in the detaching and installing process is guaranteed.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to the field of electrical equipment, and more particularly to a circuit breaker and an electrical control cabinet. Background Art

[0002] Electrical control cabinets typically contain multiple circuit breakers, each connected to a busbar (also known as a busbar) within the cabinet. These breakers distribute power to different circuits or loads to ensure the safe operation of the power system. In a conventional electrical control cabinet, when removing or installing a circuit breaker from the cabinet, the circuit breaker handle must be switched to the open position to ensure circuit safety. However, operators may accidentally or forgetfully leave the circuit breaker handle in the closed position. Removing or installing a circuit breaker while it is in the closed position can cause arcing or even electrical leakage. Utility Model Content

[0003] An object of the embodiments of the present disclosure is to provide a circuit breaker to at least partially solve the above problems and other potential problems.

[0004] In a first aspect of the present disclosure, a circuit breaker is provided. The circuit breaker includes: a housing; a handle rotatably coupled to the housing and capable of switching between a closed position and an open position; an operating assembly disposed within the housing and coupled to the housing, the operating assembly coupled to the handle for movement driven by the handle; and a trip assembly including: a slider slidably coupled to the housing and capable of switching between a first position and a second position, the slider coupled to the operating assembly and extending out of the housing, wherein the length of the slider extending out of the housing in the first position is less than the length of the slider extending out of the housing in the second position, and the slider is capable of tripping the operating assembly in the second position; and an elastic member coupled to the housing and the slider, the elastic member being configured to apply a force to the slider to cause the slider to switch from the first position to the second position.

[0005] In some embodiments, the sliding member is provided with a connecting hole, and the trip assembly further includes: a connecting member, comprising a first connecting end and a second connecting end arranged opposite to each other, the first connecting end being rotatably coupled to the operating assembly, and the second connecting end being rotatably coupled to the connecting hole.

[0006] In some embodiments, the sliding member is provided with a support portion, and one end of the elastic member abuts against the support portion to drive the sliding member.

[0007] In some embodiments, a limiting portion is provided on a side of the housing away from the handle, the limiting portion including a sliding groove, and the sliding member is inserted into the sliding groove to slide along the sliding groove.

[0008] In some embodiments, the limiting portion further includes a limiting groove, and a side wall of the sliding member is provided with a limiting protrusion, which is provided in the limiting groove to constrain the sliding member to move between the first position and the second position.

[0009] In some embodiments, the circuit breaker further includes: a moving contact coupled to the operating assembly to move under the driving of the operating assembly; and a stationary contact disposed on one side of the moving contact and capable of contacting or separating with the moving contact.

[0010] In some embodiments, the circuit breaker further includes: two connection terminals, electrically connected to the movable contact and the static contact respectively, and adapted to be electrically connected to an external circuit.

[0011] According to a second aspect of the present disclosure, an electrical control cabinet is provided. The electrical control cabinet includes: a cabinet body having an opening; and a circuit breaker according to the first aspect of the present disclosure, detachably coupled to the cabinet body at the opening, wherein when the circuit breaker abuts against the cabinet body, a sliding member of the circuit breaker is located in a first position.

[0012] In some embodiments, the cabinet includes at least one compartment, and a guide rail is provided at the bottom of the compartment. The bottom of the housing of the circuit breaker is provided with a guide portion, and the guide portion is slidably coupled to the guide rail.

[0013] In some embodiments, a beam is provided at the top and / or bottom of the side of the partition facing the opening, and at least one connection portion is provided at an edge of the end of the shell away from the cabinet, and the at least one connection portion is detachably coupled to the beam.

[0014] In some embodiments, a support member is provided in the cabinet, wherein when the circuit breaker abuts against the cabinet, the support member contacts an end of the slider extending out of the housing, so that the slider is in the first position.

[0015] In an embodiment of the present disclosure, a circuit breaker includes a housing, a handle, an operating assembly, and a trip assembly. The handle is rotatably coupled to the housing and can be switched between a closed position and an open position. The operating assembly is disposed within the housing and coupled to the housing. The operating assembly is coupled to the handle and can be moved by the handle. The trip assembly includes a slider and an elastic member. The slider is slidably coupled to the housing and can be switched between a first position and a second position. The slider is coupled to the operating assembly and extends out of the housing, wherein the length of the slider extending out of the housing in the first position is less than the length of the slider extending out of the housing in the second position, and the slider can trip the operating assembly in the second position. The elastic member is coupled to the housing and the slider and is configured to apply a force to the slider to cause the slider to switch from the first position to the second position. With this arrangement, when the circuit breaker is installed in an electrical control cabinet or removed from the electrical control cabinet, the slider can be moved from the first position to the second position under the action of the elastic member as long as there is a gap between the circuit breaker and the cabinet body of the electrical control cabinet. Even if the operator accidentally touches or forgets to turn the handle of the circuit breaker, the sliding member and the elastic member can immediately drive the operating assembly to trip, thereby ensuring the safety of the circuit breaker during the disassembly and assembly process.

[0016] It should be understood that the content described in this content section is not intended to limit the key features or important features of the embodiments of the present disclosure, nor is it intended to limit the scope of the present disclosure. Other features of the present disclosure will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and other features, advantages and aspects of the embodiments of the present disclosure will become more apparent with reference to the following detailed description in conjunction with the accompanying drawings. In the accompanying drawings, the same or similar reference numerals represent the same or similar elements, wherein:

[0018] Figure 1 A cross-sectional view of a circuit breaker according to an embodiment of the present disclosure is shown, wherein the slider is in a second position;

[0019] Figure 2 A cross-sectional view of a circuit breaker and a cabinet according to an embodiment of the present disclosure is shown, wherein the circuit breaker is not abutting against the cabinet and the slide is in a second position;

[0020] Figure 3 A cross-sectional view of a circuit breaker and a cabinet according to an embodiment of the present disclosure is shown, wherein the circuit breaker is against the cabinet and the handle is in the closed position;

[0021] Figure 4 A cross-sectional view of a circuit breaker and a cabinet according to an embodiment of the present disclosure is shown, wherein the circuit breaker is against the cabinet and the handle is in the open position;

[0022] Figure 5A perspective view of an electrical control cabinet according to an embodiment of the present disclosure is shown, wherein the circuit breaker is against the cabinet body and the handle is in the closed position; and

[0023] Figure 6 A perspective view of an electrical control cabinet according to an embodiment of the present disclosure is shown, wherein a circuit breaker is against a cabinet body and a handle is in an open position.

[0024] Description of reference numerals:

[0025] 100. Circuit breaker;

[0026] 10. Housing; 11. Through hole; 12. Limiting portion; 120. Slide groove; 121. Limiting groove; 13. Connecting portion;

[0027] 20. Handle;

[0028] 30. Operation components;

[0029] 40. Trip assembly; 41. Sliding member; 411. First end; 412. Second end; 413. Connecting hole; 414. Support portion; 415. Position-limiting protrusion; 42. Elastic member; 43. Connecting member; 431. First connecting end; 432. Second connecting end;

[0030] 51. Moving contact; 52. Static contact; 53. Terminal block; 54. Wire;

[0031] 200, cabinet; 201, opening; 202, beam;

[0032] 210, compartment; 211, guide rail;

[0033] 220. Support member. DETAILED DESCRIPTION

[0034] The preferred embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although preferred embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0035] As used herein, the term "including" and its variations represent open inclusion, i.e., "including but not limited to." Unless otherwise stated, the term "or" means "and / or." The term "based on" means "based at least in part on." The terms "one example embodiment" and "an embodiment" mean "at least one example embodiment." The term "another embodiment" means "at least one additional embodiment." The terms "first," "second," etc. may refer to different or identical objects.

[0036] As mentioned above, in a conventional electrical control cabinet, when removing or installing a circuit breaker from the cabinet, the circuit breaker handle must be switched to the open position to ensure circuit safety. However, the operator may accidentally or forgetfully leave the circuit breaker handle in the closed position. Removing or installing the circuit breaker while it is in the closed position can cause arcing or even leakage.

[0037] Embodiments of the present disclosure provide a circuit breaker and an electrical control cabinet. In the circuit breaker, the circuit breaker includes a housing, a handle, an operating assembly, and a trip assembly. The trip assembly includes a sliding member and an elastic member. The sliding member is slidably coupled to the housing and can switch between a first position and a second position. The sliding member is coupled to the operating assembly and extends out of the housing, wherein the length of the sliding member extending out of the housing in the first position is less than the length of the sliding member extending out of the housing in the second position, and the sliding member can trip the operating assembly in the second position. The elastic member is coupled to the housing and the sliding member, and the elastic member is configured to apply a force to the sliding member to cause the sliding member to switch from the first position to the second position. With this arrangement, when the circuit breaker is installed in the electrical control cabinet or when the circuit breaker is removed from the electrical control cabinet, as long as there is a gap between the circuit breaker and the cabinet body of the electrical control cabinet, the sliding member can move from the first position to the second position under the action of the elastic member. Even if the operator accidentally touches or forgets to turn the handle of the circuit breaker, the sliding member and the elastic member can immediately drive the operating assembly to trip, thereby ensuring the safety of the circuit breaker during the disassembly and assembly process. The following will be combined with Figures 1 to 6 To describe the principles of the present disclosure in detail.

[0038] like Figures 1 to 4 As shown, the circuit breaker 100 includes a housing 10 , a handle 20 , an operating assembly 30 , and a trip assembly 40 .

[0039] The housing 10 is the outer frame of the circuit breaker 100, providing insulation and protection, as well as physical support for the internal electronic components. The housing 10 is typically made of high-temperature and corrosion-resistant materials, capable of withstanding mechanical shock and environmental factors. Furthermore, the housing 10 can be constructed from materials with good heat dissipation or incorporate heat dissipation structures to maintain a favorable temperature during extended operation, thereby extending the lifespan of the circuit breaker 100.

[0040] The handle 20 is rotatably coupled to the housing 10, allowing the handle 20 to be freely switched between the closed position and the open position. By rotating or pushing the handle 20, the user can achieve the closed and open functions of the circuit breaker 100. In some embodiments, to facilitate operation, clear labels such as "ON" and "OFF" can be provided on the housing 10 to allow the user to quickly identify the status of the circuit breaker 100. In addition, the handle 20 can also be provided with anti-misoperation structure, for example, the handle 20 needs to exert a certain force to switch positions, preventing accidental closing or opening caused by accidental touch.

[0041] The operating assembly 30 can convert the movement of the handle 20 into the on-off action of the circuit. The operating assembly 30 can be a four-bar linkage structure, which includes a series of links, springs, and latch components that work together to achieve the switching function of the circuit breaker 100. The operating assembly 30 is arranged in the housing 10 and connected to the housing 10, and can be kept stable inside the circuit breaker 100. When the user operates the handle 20, the movement of the handle 20 is transmitted to the operating assembly 30, which in turn controls the closing or opening of the main contact of the circuit breaker 100.

[0042] In other embodiments, the operating assembly 30 can adopt more complex structures, such as a spiral spring mechanism or an electromagnetic drive mechanism, to achieve higher response speed and more precise control. It should be understood that the operating assembly 30 can be in any implementable manner, and the present disclosure is not intended to be limited in this regard.

[0043] In embodiments of the present disclosure, the trip assembly 40 includes a slider 41 and a resilient member 42, which work together to ensure that the circuit breaker 100 can automatically trip when necessary. The slider 41 is a component that can slide along the internal track of the housing 10 and can be switched between a first position and a second position. The slider 41 is coupled to the operating assembly 30. The movement of the slider 41 can be transmitted to the operating assembly 30, thereby achieving the trip function. A through hole 11 or a notch can be provided on the housing 10, one part of the slider 41 is located inside the housing 10 and connected to the operating assembly 30, and the other part of the slider 41 can extend out of the housing 10 along the through hole 11 or the notch.

[0044] When the slider 41 is in the first position, it extends out of the housing 10 with a shorter length. When the slider 41 is in the second position, the length of the slider 41 extending out is increased. The change in position of the slider 41 directly affects the working state of the operating assembly 30, when the slider 41 is in the second position, it can trigger the trip mechanism of the operating assembly 30, causing the circuit breaker 100 to automatically trip.

[0045] The elastic member 42 connects the housing 10 and the sliding member 41, and the elastic member 42 always applies a force toward the second position to the sliding member 41. In this way, in the absence of external force, the sliding member 41 tends to remain in the second position, that is, the length of the sliding member 41 extending out of the housing 10 is greater.

[0046] With this arrangement, when the circuit breaker 100 is removed from or installed in the electrical control cabinet, a certain gap may exist between the circuit breaker 100 and the cabinet body 200. At this point, the slider 41, under the action of the elastic member 42, naturally moves to the second position. Even if the operator accidentally touches or forgets to reset the handle 20, the slider 41 and elastic member 42 will respond quickly, causing the operating assembly 30 to immediately trip, ensuring that the circuit breaker 100 will not be accidentally closed, thereby avoiding potential leakage accidents or other dangerous situations.

[0047] In some embodiments, the trip assembly 40 may include a thermal trip mechanism and / or a magnetic trip mechanism in addition to the sliding member 41 and the elastic member 42. With this arrangement, the circuit breaker 100 can not only provide safety protection during assembly and disassembly, but also provide normal circuit protection after installation.

[0048] In some embodiments, as Figures 1 to 4 As shown, the portion of the slider 41 located within the housing 10 is provided with a connecting hole 413. This connecting hole 413 can mate with a connecting member 43 in the trip assembly 40. The connecting member 43 includes a first connecting end 431 and a second connecting end 432 disposed opposite each other. The first connecting end 431 is rotatably coupled to the operating assembly 30, while the second connecting end 432 is rotatably coupled to the connecting hole 413 of the slider 41. With this arrangement, the connecting member 43 can transmit the movement of the slider 41 to the operating assembly 30, thereby affecting the operating state of the operating assembly 30.

[0049] In some embodiments, as Figures 1 to 4 As shown, the connecting hole 413 can be designed as a strip hole, which can provide a larger range of motion for the second connecting end 432 of the connecting member 43. When the sliding member 41 is in the first position, that is, when the circuit breaker 100 is normally installed in the cabinet 200 of the electrical control cabinet, the second connecting end 432 can slide freely in the connecting hole 413. Figure 3 and Figure 4 As shown, the operating assembly 30 connected to the connector 43 can also move normally, and the handle 20 of the circuit breaker 100 can smoothly perform opening and closing operations. At this time, the circuit breaker 100 is in normal operation mode and can respond to various circuit conditions, such as overload or short circuit, to promptly cut off the power supply and protect the safety of the circuit and equipment.

[0050] When the sliding member 41 is in the second position, the sliding member 41 further extends out of the housing 10, and the second connecting end 432 moves to one end in the connecting hole 413. Figure 2 As shown, the second connecting end 432 is located at the leftmost side of the connecting hole 413. In this position, the extended length of the slider 41 increases, causing the second connecting end 432 to reach the limit of the connecting hole 413. At this point, the operating assembly 30 is tripped, and the circuit breaker 100 enters the tripped state. Due to the size limitations of the connecting member 43 itself, the second connecting end 432 cannot move further within the connecting hole 413, thus restricting the operating assembly 30 to the tripped position.

[0051] With this arrangement, when the circuit breaker 100 is separated from the electrical control cabinet body 200, the operating assembly 30 cannot be restored to normal operation, and the handle 20 of the circuit breaker 100 can only be in the open position. During the process of removing or installing the circuit breaker 100, the user can avoid accidentally closing the circuit breaker 100 due to misoperation or accidental touch, thereby avoiding possible leakage accidents or other safety hazards.

[0052] In some embodiments, as Figure 2 As shown, a support portion 414 is provided on the sliding member 41. One end of the elastic member 42 abuts against the support portion 414, driving the sliding member 41 to slide within the housing 10. Specifically, when the elastic member 42 is in a compressed or stretched state, it exerts a constant force on the support portion 414, which pushes the sliding member 41 to slide along a predetermined track within the housing 10.

[0053] In some embodiments, as Figure 1 As shown, a limit portion 12 is provided on a side of the housing 10 away from the handle 20. The limit portion 12 corresponds to the location of the through hole 11. The limit portion 12 includes a sliding groove 120, into which the slider 41 can be inserted and slide along the sliding groove 120. With this arrangement, the movement path of the slider 41 is fixed when switching between the first position and the second position, thereby improving the mechanical stability and reliability of the circuit breaker 100.

[0054] In some embodiments, as Figure 1 As shown, the limiting portion 12 further comprises a limiting groove 121, and a limiting protrusion 415 is provided on the side wall of the sliding member 41. The limiting protrusion 415 is embedded in the limiting groove 121 to constrain the movement of the sliding member 41 between the first position and the second position. With this arrangement, the length and shape of the limiting groove 121 determine the range of motion of the limiting protrusion 415. The range of motion of the limiting protrusion 415 within the limiting groove 121 is the same as the range of motion of the sliding member 41.

[0055] When the sliding piece 41 is in the first position, the limiting protrusion 415 is located at one end of the limiting groove 121, at this time, the sliding piece 41 extends out of the shell 10 with a shorter length, the circuit breaker 100 can work normally, and the handle 20 can be operated to open and close.

[0056] In some embodiments, as shown in Figure 1 The circuit breaker 100 further includes a moving contact 51 and a stationary contact 52. The moving contact 51 is coupled to the operating assembly 30 and can move under the drive of the operating assembly 30. When the user operates the circuit breaker 100 through the handle 20, the movement of the handle 20 is transmitted to the moving contact 51 through the operating assembly 30, so that the moving contact 51 moves along a predetermined path in the shell 10. The stationary contact 52 is fixedly arranged on one side of the moving contact 51 and can be in contact or separated from the moving contact 51. When the moving contact 51 is in contact with the stationary contact 52, the circuit is closed and the current can pass through. When the moving contact 51 is separated from the stationary contact 52, the circuit is opened and the current is cut off.

[0057] In some embodiments, as shown in Figure 1 and Figure 2 The circuit breaker 100 further includes two wiring terminals 53. The two wiring terminals 53 are electrically connected with the moving contact 51 and the stationary contact 52 respectively. Through the two wiring terminals 53 and the wires 54 electrically connected with the wiring terminals 53, the circuit breaker 100 can electrically connect the internal moving contact 51 and the stationary contact 52 with external circuits such as external loads or power sources. In the event of a fault, the circuit breaker 100 can quickly cut off, thereby protecting the safety of the circuit and the equipment.

[0058] In a second aspect of the present disclosure, an electrical control cabinet is provided. As shown in Figure 5 and Figure 6 The electrical control cabinet includes a cabinet body 200 and the circuit breaker 100 of any one of the above.

[0059] An opening 201 is provided on one side of the cabinet body 200, and the circuit breaker 100 is detachably coupled to the cabinet body 200 through the opening 201. When the circuit breaker 100 is installed and abuts against the cabinet body 200, one end of the sliding piece 41 extends out of the shell 10 and abuts against the cabinet body 200, at this time, the sliding piece 41 is in the first position, the circuit breaker 100 can work normally, and the handle 20 can be operated to open and close.

[0060] When installing or removing the circuit breaker 100 from the cabinet 200, a gap may exist between the circuit breaker 100 and the cabinet 200. The slider 41, no longer constrained by the cabinet 200, is propelled by the elastic member 42 and extends further out of the housing 10, moving from the first position to the second position. In the second position, the slider 41 extends further out of the housing 10, causing the operating assembly 30 to release.

[0061] With this arrangement, when the circuit breaker 100 is installed in the cabinet 200 or removed from the cabinet 200, even if the operator moves the handle 20 of the circuit breaker 100 due to accidental touch or forgetfulness, the sliding member 41 and the elastic member 42 can immediately drive the operating assembly 30 to trip, thereby ensuring the safety of the circuit breaker 100 during installation and removal.

[0062] In some embodiments, as Figure 5 and Figure 6 As shown, the cabinet 200 includes at least one compartment 210. A guide rail 211 is provided at the bottom of the compartment 210, and a guide portion is provided at the bottom of the housing 10 of the circuit breaker 100. The guide portion is slidably coupled to the guide rail 211. The guide portion and the guide rail 211 ensure the stability of the circuit breaker 100 and the cabinet 200 when installing or removing the circuit breaker 100.

[0063] In other embodiments, multiple circuit breakers 100 may be positioned within the compartment 210, with the guide portion of each circuit breaker 100 engaging with a corresponding guide rail 211. Therefore, the guide portion also serves a positioning function. The guide portion can determine the position of the circuit breaker 100 within the compartment 210, maintaining an appropriate spacing between the corresponding circuit breaker 100 and other circuit breakers 100. This avoids friction or interference caused by improper spacing, thereby fully utilizing the space within the compartment 210. During routine inspections or replacements of the circuit breaker 100, the circuit breaker 100 can be easily slid in or out along the guide rail 211, without worrying about the circuit breaker 100 accidentally falling off or being damaged during movement.

[0064] In other embodiments, other electrical components, such as relays, contactors, and fuses, may also be placed within the compartment 210. These components are similarly positioned by the guides and rails 211 to ensure their stable position within the compartment 210. When a new electrical component is needed, it can be quickly installed by simply sliding it along the rails 211 into the desired position, without the need for complex wiring or adjustments.

[0065] In some embodiments, as Figure 5 and Figure 6As shown, a crossbeam 202 is provided at the top of the side of the partition 210 facing the opening 201. A connecting portion 13 is provided at the top edge of the end of the housing 10 away from the cabinet 200. The connecting portion 13 is detachably coupled to the crossbeam 202. The connecting portion 13 and the crossbeam 202 can be connected by screws. With this arrangement, the crossbeam 202 provides an additional support point for the circuit breaker 100. The connecting portion 13 is fixedly connected to the crossbeam 202 by screws, allowing the circuit breaker 100 to be securely installed in the partition 210. When the circuit breaker 100 needs to be disassembled, the circuit breaker 100 can be removed by simply loosening the screws, facilitating maintenance and replacement.

[0066] In other embodiments, Figure 5 and Figure 6 As shown, the partition 210 has beams 202 at the top and bottom of the side facing the opening 201. The shell 10 has connecting parts 13 at the top and bottom edges of the end away from the cabinet 200. The two connecting parts 13 are detachably coupled to the top and bottom beams 202 respectively.

[0067] In some embodiments, as Figure 5 and Figure 6 As shown, a support member 220 is provided in the cabinet 200. When the circuit breaker 100 abuts against the cabinet 200, the support member 220 contacts the end of the sliding member 41 extending out of the housing 10, thereby ensuring that the sliding member 41 is in the first position.

[0068] like Figure 5 and Figure 6 As shown, the support member 220 is a fixed component within the cabinet 200, and its position matches the end of the slider 41 that extends out of the housing 10. When the circuit breaker 100 is installed and resting against the cabinet 200, the end of the slider 41 that extends out of the housing 10 contacts the support member 220. The support provided by the support member 220 maintains the slider 41 in the first position. In the first position, the extended length of the slider 41 is relatively short, which does not affect the normal operation of the circuit breaker 100, and the handle 20 can smoothly perform opening and closing operations.

[0069] When the circuit breaker 100 is not fully installed or removed from the cabinet 200, the slider 41 loses contact with the support member 220. Pushed by the elastic member 42, the slider 41 extends further out of the housing 10, moving to the second position. In the second position, the slider 41 extends further, causing the operating assembly 30 to trip, preventing the handle 20 of the circuit breaker 100 from closing.

[0070] Having described above several embodiments of the disclosure, any modifications and variations that fall within the scope of the described embodiments are also contemplated. It is also contemplated that the application covered by the claims extends to any alternative embodiment, adaptations, or variations of the various embodiments described above, and to any and all equivalents. The terms "comprises", "comprising", "comprised of" and "comprising" when used in this specification are taken to specify the presence of stated features, integers, steps or components but do not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof.

Claims

1. A circuit breaker (100), characterized in that: include: Housing (10); a handle (20) rotatably coupled to the housing (10) and capable of switching between a closed position and an open position; an operating assembly (30) disposed in the housing (10) and coupled to the housing (10), wherein the operating assembly (30) is coupled to the handle (20) so as to move under the drive of the handle (20); as well as A trip assembly (40) comprising: a sliding member (41) slidably coupled to the housing (10) and capable of switching between a first position and a second position, the sliding member (41) being coupled to the operating assembly (30) and extending out of the housing (10), wherein a length by which the sliding member (41) extends out of the housing (10) in the first position is less than a length by which the sliding member (41) extends out of the housing (10) in the second position, and the sliding member (41) is capable of disengaging the operating assembly (30) in the second position; and An elastic member (42) is coupled to the housing (10) and the sliding member (41), and the elastic member (42) is configured to apply a force to the sliding member (41) to switch the sliding member (41) from the first position to the second position.

2. The circuit breaker (100) according to claim 1, characterized in that The sliding member (41) is provided with a connecting hole (413), and the trip assembly (40) further comprises: The connecting member (43) includes a first connecting end (431) and a second connecting end (432) that are arranged opposite to each other, wherein the first connecting end (431) is rotatably coupled to the operating assembly (30), and the second connecting end (432) is rotatably coupled to the connecting hole (413).

3. The circuit breaker (100) according to claim 1, characterized in that The sliding member (41) is provided with a support portion (414), and one end of the elastic member (42) abuts against the support portion (414) to drive the sliding member (41).

4. The circuit breaker (100) according to claim 1, characterized in that A limiting portion (12) is provided on a side of the housing (10) away from the handle (20), the limiting portion (12) including a slide groove (120), and the sliding member (41) is inserted into the slide groove (120) to slide along the slide groove (120).

5. The circuit breaker (100) according to claim 4, characterized in that The limiting portion (12) further includes a limiting groove (121), and a side wall of the sliding member (41) is provided with a limiting protrusion (415), and the limiting protrusion (415) is arranged in the limiting groove (121) to constrain the sliding member (41) to move between the first position and the second position.

6. The circuit breaker (100) according to any one of claims 1 to 5, characterized in that: Also includes: a moving contact (51) coupled to the operating assembly (30) to move under the drive of the operating assembly (30); as well as The static contact (52) is arranged on one side of the moving contact (51) and can be in contact with or separated from the moving contact (51).

7. The circuit breaker (100) according to claim 6, characterized in that Also includes: Two connection terminals (53) are electrically connected to the movable contact (51) and the static contact (52) respectively, and are suitable for being electrically connected to an external circuit.

8. An electrical control cabinet, characterized in that: include: The cabinet (200) includes an opening (201); as well as The circuit breaker (100) according to any one of claims 1 to 7 is detachably coupled to the cabinet (200) at the opening (201), wherein when the circuit breaker (100) abuts against the cabinet (200), the slide (41) of the circuit breaker (100) is located in the first position.

9. The electrical control cabinet according to claim 8, characterized in that: The cabinet (200) includes at least one partition (210), and a guide rail (211) is provided at the bottom of the partition (210); the bottom of the housing (10) of the circuit breaker (100) is provided with a guide portion, and the guide portion is slidably coupled to the guide rail (211).

10. The electrical control cabinet according to claim 9, characterized in that: A crossbeam (202) is provided at the top and / or bottom of one side of the partition (210) facing the opening (201), and at least one connecting portion (13) is provided at the edge of one end of the shell (10) away from the cabinet (200), and the at least one connecting portion (13) is detachably coupled to the crossbeam (202).

11. The electrical control cabinet according to any one of claims 8 to 10, characterized in that: A support member (220) is provided in the cabinet (200), wherein when the circuit breaker (100) abuts against the cabinet (200), the support member (220) contacts an end of the sliding member (41) extending out of the housing (10), so that the sliding member (41) is in the first position.

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