Tripping module and circuit breaker

Abstract

The embodiment of the utility model provides a tripping module and a circuit breaker, and relates to the technical field of electrical equipment, and the tripping module comprises a tripper assembly, a pedestal, and a connecting assembly. The base is connected with the release assembly and is used for being connected with a shell of the circuit breaker; the connecting assembly is arranged on the base and / or the release assembly and used for connecting the base and the release assembly. By adopting the scheme, when the tripping module is assembled to the shell of the circuit breaker, the base is connected with the shell of the circuit breaker, that is, the tripping device assembly does not need to be directly matched with the shell of the circuit breaker. Therefore, the release assembly can be produced on a large scale, and for circuit breakers of different specifications, only the release assembly needs to be connected with different bases, so that the bases can be assembled with the shells of the circuit breakers, and the universality of the release assembly in the circuit breakers of different specifications is realized.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of electrical equipment, and in particular to a trip module and a circuit breaker. Background Art

[0002] The leakage circuit breaker is an important switchgear in the power system, which can close, carry and disconnect the current in the circuit. When leakage, overload, short circuit and other faults occur in the system, the leakage circuit breaker can cut off the circuit by opening the gate to prevent the fault from expanding.

[0003] The release plays an important role in the leakage circuit breaker. The internal space and structure of leakage circuit breakers of different specifications are different, which makes the release unable to be used universally in different leakage circuit breakers, causing certain difficulties in the mass production of the release. Utility Model Content

[0004] In view of the above problems, the embodiments of the present application provide a trip module and a circuit breaker, which can realize the common use of the trip module assembly in circuit breakers of different specifications, and are conducive to the mass production of the trip module assembly.

[0005] According to one aspect of an embodiment of the present application, a trip module is provided, comprising a trip assembly, a base and a connecting assembly; the base is connected to the trip assembly and is used to be connected to the housing of a circuit breaker; the connecting assembly is arranged on the base and / or the trip assembly, and is used to connect the base and the trip assembly.

[0006] By adopting the above scheme, when assembling the trip module to the housing of the circuit breaker, the trip assembly and the base are first connected through the connecting assembly to form the trip module, and then the trip module is assembled into the circuit breaker as a whole. In addition, during assembly, the base is connected to the housing of the circuit breaker, that is, the assembly can be achieved without direct matching between the trip assembly and the housing of the circuit breaker. Therefore, the trip assembly can be mass-produced, and for circuit breakers of different specifications, it is only necessary to connect the trip assembly to different bases so that the base can be assembled with the housing of the circuit breaker. Therefore, the trip assembly is universal in circuit breakers of different specifications, which is conducive to the mass production of the trip assembly.

[0007] In some embodiments, the connection assembly includes a buckle provided on the base, and a buckling portion provided on the release assembly, and the buckle is buckled with the buckling portion.

[0008] The release assembly and the base are connected by the cooperation of the buckle and the snap-fit ​​part. During assembly, it is only necessary to align the snap-fit ​​part and the buckle and press to achieve the snap connection between the buckle and the snap-fit ​​part, making the connection more convenient and quick.

[0009] In some embodiments, the buckle portion is configured as a leg, and the leg is located on a first side of the buckle, where the first side is a side away from the release assembly.

[0010] By adopting the above solution, the support foot is arranged on the release assembly, and at the same time, the support foot is located on the first side of the buckle. When the base moves to the side away from the release assembly, the buckle is restricted by the support foot. When the base moves to the side close to the release assembly, the base is restricted by the release assembly, and the base can be assembled more tightly with the release assembly. Therefore, by buckling the buckle with the support foot, the relative position of the release assembly and the base is restricted, and it is beneficial to the firmness of the connection between the base and the release assembly.

[0011] In some embodiments, the buckle portion is configured as a slot, and the buckle is disposed in the slot.

[0012] By adopting the above solution, the buckle can be restricted by the side walls of the slot in multiple directions, which is equivalent to limiting the movement of the base relative to the release assembly in multiple directions, which is beneficial to the stability of the relative position of the base and the release assembly.

[0013] In some embodiments, a limiting groove is provided on the base, the depth direction of the limiting groove is parallel to the relative arrangement direction of the base and the release assembly, and the release assembly is at least partially located in the limiting groove.

[0014] By adopting the above scheme, the side walls of the limit groove can limit the part of the release assembly located in the limit groove, so that the release assembly can be assembled to the base along a specific direction, which is beneficial for the connecting assembly to connect the release assembly and the base at a specific position, can realize the rapid assembly of the release assembly and the base, and can limit the relative movement of the release assembly and the base in multiple directions.

[0015] In some embodiments, a guide slope is provided on one end of the side wall of the limiting groove close to the release assembly.

[0016] By adopting the above scheme, when assembling the release assembly and the base, at least part of the release assembly first enters the space of the limit groove corresponding to the guide bevel. The setting of the guide bevel is conducive to at least part of the release assembly being installed into the limit groove, thereby preventing interference between the release assembly and the end of the limit groove.

[0017] In some embodiments, the trip module further includes a support member, which is disposed between the base and the trip assembly and is used to limit the positions of the base and the trip assembly in relative directions.

[0018] By adopting the above solution, the support member can limit the positions of the base and the release assembly in relative directions, thereby preventing the base and the release assembly from being loosened or moved due to a loose connection.

[0019] In some embodiments, mounting feet are provided at the edge of the base, and the mounting feet are used to be inserted into the housing of the circuit breaker.

[0020] By adopting the above solution, the mounting feet are inserted into the housing of the circuit breaker. Compared with the assembly method of matching the entire base with the housing of the circuit breaker, the method of inserting the mounting feet into the housing of the circuit breaker has fewer positioning surfaces, which can reduce the occurrence of over-positioning. In addition, when the space in the housing of the circuit breaker changes, only the structure of the mounting feet on the base can be changed to match the housing of the circuit breaker, thereby saving the production cost of the base.

[0021] In some embodiments, a side of an edge of the mounting foot away from the release assembly is provided with a chamfer, and / or a fastening rib is provided on an edge of the mounting foot.

[0022] By adopting the above scheme, the chamfered setting is conducive to inserting the mounting foot into the housing of the circuit breaker when the trip module is assembled to the housing of the circuit breaker. Fastening ribs are provided on the edges of the mounting foot. During the process of inserting the mounting foot into the housing, the fastening ribs are squeezed and deformed, which can make the mounting foot plugged in tighter, which is conducive to improving the firmness of the connection between the trip module and the housing of the circuit breaker.

[0023] According to another aspect of an embodiment of the present application, a circuit breaker is provided, comprising a housing and a trip module in any one of the above embodiments, wherein the housing is connected to a base of the trip module.

[0024] In the embodiment of the present application, the trip module includes a base. When the trip module is assembled to the housing of the circuit breaker, the base is connected to the housing of the circuit breaker. Therefore, when the structure of the trip module in the present application is adopted, the trip assembly can be mass-produced. For circuit breakers of different specifications, it is only necessary to connect the trip assembly to different bases so that the base can be assembled with the housing of the circuit breaker, thereby realizing the universality of the trip assembly in circuit breakers of different specifications, which is conducive to the mass production of the trip assembly.

[0025] The above description is only an overview of the technical solution of the embodiment of the present application. In order to more clearly understand the technical means of the embodiment of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the embodiment of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 Schematic diagram of the overall structure of the trip module in the embodiment of the present application.

[0028] Figure 2 A schematic diagram of the structure of the base.

[0029] Explanation of the reference numerals: 100, release assembly; 200, base; 210, limit groove; 211, guide slope; 300, connection assembly; 310, buckle; 320, buckling portion; 400, support member; 500, mounting foot; 510, chamfer; 520, fastening rib. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0032] The terms "comprising" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover but not exclude other contents. The word "a" or "an" does not exclude the presence of a plurality.

[0033] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0034] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0035] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the trip module or circuit breaker of the present application. For example, in the description of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application.

[0036] In the description of the present application, unless otherwise specified, "plurality" means more than two (including two), and similarly, "multiple groups" means more than two groups (including two).

[0037] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure may refer to a physical connection. For example, the physical connection may be a fixed connection, such as a fixed connection through a fixing member, such as a fixed connection through a screw, bolt or other fixing member; the physical connection may also be a detachable connection, such as a mutual snap connection or snap connection; the physical connection may also be an integral connection, such as welding, bonding or integral molding to form a connection for connection. The "connection" or "connection" of a circuit structure may refer to an electrical connection or a signal connection in addition to a physical connection. For example, it may be a direct connection, that is, a physical connection, or it may be an indirect connection through at least one intermediate element, as long as the circuit is connected, or it may be the internal connection of two elements; the signal connection may refer to a signal connection through a media medium, such as a radio wave, in addition to a signal connection through a circuit. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0038] Different specifications of residual current circuit breakers have different internal spaces and structures, which results in that the release assembly cannot be used universally in different residual current circuit breakers, causing certain difficulties in the mass production of the release assembly.

[0039] In view of the above problems, an embodiment of the present application provides a trip module and a circuit breaker.

[0040] like Figure 1As shown, the trip module includes a trip assembly 100, a base 200 and a connecting assembly 300; the base 200 is connected to the trip assembly 100 and is used to connect to the housing of the circuit breaker; the connecting assembly 300 is arranged on the base 200 and / or the trip assembly 100, and is used to connect the base 200 and the trip assembly 100.

[0041] The trip unit assembly 100 performs the leakage protection and leakage indication functions. As long as the main structure for performing the functions remains unchanged, other structures can be adaptively changed according to actual needs.

[0042] In the embodiment of the present application, the structure of the release assembly 100 may be the same as or similar to that of the release assembly 100 in the related art, and the embodiment of the present application is not limited to this.

[0043] The base 200 serves as a connecting medium between the release assembly 100 and the housing of the circuit breaker. It is not only necessary to connect to the release assembly 100, but also to connect to the housing. The arrangement of the base 200 makes it unnecessary for the release assembly 100 to be in direct contact or connection with the housing. Therefore, the release assembly 100 does not need to strictly adapt to the structure and space size of the housing.

[0044] The base 200 may be in various structures such as a flat plate shape, a hollow shell shape, etc., and this embodiment of the present application is not limited to this.

[0045] The connection assembly 300 can be arranged on the release assembly 100, or on the base 200, or partially on the release assembly 100 and partially on the base 200, depending on the specific structure of the connection assembly 300, which is not limited in the embodiment of the present application.

[0046] By providing the base 200, when producing the trip module, the production and assembly process of the trip assembly 100 does not need to be changed, the trip assembly 100 can be mass-produced, and the base 200 that can be installed in the housings of different circuit breakers can be produced. When the trip module needs to be assembled into a circuit breaker of a certain specification, the mass-produced trip assembly 100 is assembled with the corresponding base 200 to form a trip module, and then the trip module is assembled as a whole into the housing of the circuit breaker.

[0047] Therefore, the above-mentioned trip module of the present application realizes the universal use of the trip assembly 100 in circuit breakers of different specifications, which is conducive to the mass production of the trip assembly 100.

[0048] The connection component 300 may be of various structures, for example, it may be snap-on, plug-in, screw-on, bonding, etc., and the embodiments of the present application are not limited to this.

[0049] For example, Figure 1As shown, in some embodiments, the connection assembly 300 includes a buckle 310 disposed on the base 200 and a buckle portion 320 disposed on the release assembly 100 , and the buckle 310 is buckled with the buckle portion 320 .

[0050] The buckle 310 is a structure for realizing an embedded connection between two parts. When the buckle 310 and the buckling part 320 are connected, the interlocking between the release assembly 100 and the base 200 is generally realized by making the buckle 310 and the buckling part 320 fit together.

[0051] The buckle 310 may be integrally provided with the base 200 , or may be manufactured separately and then assembled to the base 200 , which is not limited in the embodiment of the present application.

[0052] During assembly, it is only necessary to align the buckle 320 and the buckle 310 and then press to achieve the buckle 310 and the buckle 320 being connected, so that the connection between the base 200 and the release assembly 100 is more convenient and quick.

[0053] It is understandable that the positions of the buckle 310 and the buckling portion 320 can also be interchanged, that is, the buckle 310 is set on the release assembly 100, and the buckling portion 320 is set on the base 200. In this case, the buckling relationship between the buckle 310 and the buckling portion 320 remains unchanged.

[0054] In some embodiments, the buckle portion 320 is configured as a leg, and the leg is located on a first side of the buckle 310 , where the first side is a side away from the trip unit assembly 100 .

[0055] The support foot is a structure protruding from the surface of the release assembly 100. It can be understood that the volume of the support foot is smaller than the release assembly 100 as a whole. Therefore, when the support foot is engaged with the buckle 310, the support foot is more easily able to move from one side of the buckle 310 to the other side through elastic deformation, thereby making the assembly of the release assembly 100 and the base 200 more labor-saving.

[0056] A plurality of legs may be provided on the edge of the base 200 to connect the base 200 and the trip assembly 100 at multiple locations, so that the trip assembly 100 is not easily separated from the base 200 .

[0057] After adopting the above structure, the support foot is set on the release assembly 100, and at the same time, the support foot is located on the first side of the buckle 310. When the base 200 moves to the side away from the release assembly 100, the buckle 310 is restricted by the support foot. When the base 200 moves to the side close to the release assembly 100, the base 200 is restricted by the release assembly 100, and the base 200 can also be assembled more tightly with the release assembly 100.

[0058] It can be seen that the buckle 310 is engaged with the support leg, thereby limiting the relative position of the release assembly 100 and the base 200 , and increasing the firmness of the connection between the base 200 and the release assembly 100 .

[0059] In other embodiments, the buckle portion 320 is configured as a slot, and the buckle 310 is disposed in the slot.

[0060] The card slot is a groove-shaped structure that can accommodate the card buckle 310. When the card buckle 310 is located in the card slot, the card buckle 310 can be restricted by the side walls of the card slot in multiple directions, which is equivalent to the movement of the base 200 relative to the release assembly 100 in multiple directions being restricted, which is beneficial to the stability of the relative position of the base 200 and the release assembly 100.

[0061] In some other embodiments, the buckling portion 320 includes a supporting foot, and a slot is provided on the supporting foot, and the buckle 310 is locked in the slot.

[0062] The support foot can be set at any position of the release assembly 100 according to the position of the buckle 310, or the support foot can be set to any shape according to the position of the buckle 310, or the slot can be set on any side of the support foot according to the position of the buckle 310. In short, the setting of the buckle 320 is more convenient.

[0063] Please refer to Figure 1 and Figure 2 In some embodiments, a limiting groove 210 is provided on the base 200 , and a depth direction of the limiting groove 210 is parallel to a relative setting direction of the base 200 and the release assembly 100 , and the release assembly 100 is at least partially located in the limiting groove 210 .

[0064] The circumference of the limiting groove 210 can be closed or open, wherein the closed setting means that the limiting groove 210 has side walls except for the two ends in the depth direction, for example, the cross section of the limiting groove 210 can be "O" shaped. The open setting means that the limiting groove 210 has openings on the circumference except for the two ends in the depth direction, for example, the cross section of the limiting groove 210 can be "C" shaped or "L" shaped.

[0065] By adopting the above scheme, the side walls of the limiting groove 210 can limit the part of the release assembly 100 located in the limiting groove 210, so that the release assembly 100 can be assembled to the base 200 along a specific direction, which is conducive to the connection assembly 300 connecting the release assembly 100 and the base 200 at a specific position, and can realize the rapid assembly of the release assembly 100 and the base 200, and can limit the relative movement of the release assembly 100 and the base 200 in multiple directions.

[0066] In some embodiments, a guide slope 211 is provided on one end of the side wall of the limiting groove 210 close to the release assembly 100 .

[0067] When assembling the release assembly 100 and the base 200, at least a portion of the release assembly 100 first enters the space of the limiting groove 210 corresponding to the guide slope 211. The space is larger than other spaces in the limiting groove 210. Therefore, at least a portion of the release assembly 100 is easier to install into the limiting groove 210, and the probability of interference between the release assembly 100 and the end of the limiting groove 210 can be reduced.

[0068] like Figure 2 As shown, in some embodiments, the trip module further includes a support member 400 , which is disposed between the base 200 and the trip assembly 100 and is used to limit the positions of the base 200 and the trip assembly 100 in relative directions.

[0069] The support member 400 may be integrally provided with the base 200 or with any component of the release assembly 100 , or may be neither integrally provided with the base 200 nor with any component of the release assembly 100 , but may be merely sandwiched between the base 200 and the release assembly 100 .

[0070] The support member 400 can limit the relative positions of the base 200 and the release assembly 100 to prevent the base 200 and the release assembly 100 from being loosened or moved due to a loose connection.

[0071] like Figure 2 As shown, in some embodiments, a mounting foot 500 is provided on the edge of the base 200, and the mounting foot 500 is used to be inserted into the housing of the circuit breaker.

[0072] The mounting foot 500 is a protruding structure on the base 200, which can be arranged on the surface of the base 200 away from the trip assembly 100, or on the edge of the base 200. The number of mounting feet 500 is at least two, and multiple mounting feet 500 can make the base 200 and the housing of the circuit breaker cooperate more firmly and reliably.

[0073] By adopting the above solution, the mounting foot 500 is inserted into the housing of the circuit breaker. Compared with the assembly method of matching the base 200 as a whole with the housing of the circuit breaker, the method of inserting the mounting foot 500 into the housing of the circuit breaker has fewer positioning surfaces, which can reduce the occurrence of over-positioning. In addition, when the space in the housing of the circuit breaker changes, only the structure of the mounting foot 500 on the base 200 can be changed to match the housing of the circuit breaker, thereby saving the production cost of the base 200.

[0074] like Figure 2As shown, in some embodiments, a chamfer 510 is provided on a side of the edge of the mounting foot 500 away from the trip assembly 100 , and / or a fastening rib 520 is provided on the edge of the mounting foot 500 .

[0075] The side of the edge of the mounting foot 500 away from the release assembly 100 is used to enter the housing of the circuit breaker first when assembled with the housing. Therefore, a chamfer 510 is provided on this side to facilitate smoother installation of the mounting foot 500 into the housing.

[0076] The edge of the mounting foot 500 is provided with a fastening rib 520. When the mounting foot 500 is inserted into the housing, the fastening rib 520 is squeezed and deformed, which can make the mounting foot 500 plugged in more tightly, which is beneficial to improve the firmness of the connection between the trip module and the housing of the circuit breaker. The number of the fastening rib 520 can be one or more, and the fastening ribs 520 can be distributed on the side walls of different sides of the mounting foot 500.

[0077] Optionally, when a chamfer 510 is provided on the side of the edge of the mounting foot 500 away from the release assembly 100, and a fastening rib 520 is provided on the edge of the mounting foot 500, the fastening rib 520 is provided at a portion of the edge of the mounting foot 500 where the chamfer 510 is not provided, that is, there is no fastening rib 520 on the chamfer 510.

[0078] When the mounting foot 500 is installed in place in the shell, the portion in contact with the inner wall of the shell is the position of the edge of the mounting foot 500 without the chamfer 510. Therefore, setting the fastener at the position of the edge of the mounting foot 500 without the chamfer 510 can enable the fastening rib 520 to function better.

[0079] In summary, in the embodiment of the present application, the trip module includes a base 200. When the trip module is assembled to the housing of the circuit breaker, the base 200 is connected to the housing of the circuit breaker. Therefore, when the structure of the trip module in the present application is adopted, the trip assembly 100 can be mass-produced. For circuit breakers of different specifications, it is only necessary to connect the trip assembly 100 with different bases 200 so that the base 200 can be assembled with the housing of the circuit breaker, thereby realizing the universality of the trip assembly 100 in circuit breakers of different specifications, which is conducive to the mass production of the trip assembly 100.

[0080] According to another aspect of an embodiment of the present application, a circuit breaker is provided, comprising a housing and a trip module in any one of the above embodiments, wherein the housing is connected to a base 200 of the trip module.

[0081] The structure of the trip module in this embodiment of the present application can refer to the structure of the trip module in any of the above embodiments, which will not be repeated here.

[0082] Since the circuit breaker in the embodiment of the present application adopts the trip module in the above-mentioned subject embodiment, the production efficiency of the circuit breaker in the embodiment of the present application is higher and the production cost is lower.

[0083] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0084] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A trip module, applied to a circuit breaker, characterized in that: include: Trip unit assembly; A base, connected to the release assembly and used to be connected to the housing of the circuit breaker; A connecting assembly is arranged on the base and / or the release assembly and is used to connect the base and the release assembly.

2. The trip module according to claim 1, characterized in that: The connecting assembly comprises a buckle arranged on the base and a buckling portion arranged on the release assembly, and the buckle is engaged with the buckling portion.

3. The trip module according to claim 2, characterized in that: The buckle portion is configured as a leg, and the leg is located on a first side of the buckle, where the first side is a side away from the release assembly.

4. The trip module according to claim 2, characterized in that: The buckle portion is configured as a slot, and the buckle is arranged in the slot.

5. The trip module according to any one of claims 1 to 4, characterized in that: The base is provided with a limiting groove, the depth direction of the limiting groove is parallel to the relative arrangement direction of the base and the release assembly, and the release assembly is at least partially located in the limiting groove.

6. The trip module according to claim 5, characterized in that: A guiding slope is provided on one end of the side wall of the limiting groove close to the release assembly.

7. The trip module according to any one of claims 1 to 4, characterized in that: It also includes a support member, which is arranged between the base and the release assembly and is used to limit the positions of the base and the release assembly in relative directions.

8. The trip module according to any one of claims 1 to 4, characterized in that: The edge of the base is provided with a mounting foot, and the mounting foot is used for plugging into the housing of the circuit breaker.

9. The trip module according to claim 8, characterized in that: A side of the edge of the mounting foot away from the release assembly is provided with a chamfer, and / or a fastening rib is provided on the edge of the mounting foot.

10. A circuit breaker, characterized in that: It comprises a housing and a trip module according to any one of claims 1 to 9, wherein the housing is connected to a base of the trip module.

Images