Circuit breaker accessory and intelligent circuit breaker

Abstract

The utility model provides a circuit breaker accessory and an intelligent circuit breaker, and relates to the technical field of electrical equipment. The circuit breaker accessory comprises a base and an external module. The base comprises an insertion opening which is communicated with the inner space of the base. The external module can be inserted into the base from the insertion opening. Wherein the base is arranged in a surface cover of the circuit breaker main body, and the external module is inserted into the base from the insertion opening and can be electrically connected with a controller in the circuit breaker main body. The circuit breaker accessory in the intelligent circuit breaker provided by the utility model is reasonable in structural design, so that the circuit breaker accessory does not additionally occupy the space outside the circuit breaker main body while realizing the intelligent function, thereby enabling the intelligent circuit breaker to realize the intelligent function while keeping the original size unchanged, and improving the reliability of the circuit breaker. The device can be conveniently installed in the power distribution cabinet for use, and the comprehensive performance is excellent.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and in particular to a circuit breaker accessory and an intelligent circuit breaker. Background Art

[0002] Smart circuit breakers, as intelligent electrical devices developed from traditional circuit breakers, possess the most basic circuit protection functions of traditional circuit breakers. They can automatically cut off the circuit in the event of faults such as overload, open circuit, and undervoltage, protecting the safety of electrical equipment and lines. Smart circuit breakers also have intelligent monitoring and communication capabilities, capable of monitoring various parameters such as circuit voltage and current. They can also implement remote control, allowing operators to remotely control the circuit breaker's opening and closing operations through mobile phone apps or computer software, facilitating rapid adjustment of circuit status in some special circumstances.

[0003] An intelligent circuit breaker includes a circuit breaker body and a circuit breaker accessory for implementing intelligent functions. The circuit breaker accessory can be electrically connected to the circuit breaker controller, so that the controller can control the circuit breaker accessory to perform corresponding operations and realize its intelligent functions.

[0004] However, the structure of existing circuit breaker accessories still needs to be improved in order to improve the structural rationality of the circuit breaker accessories and provide an intelligent circuit breaker with better overall performance. Utility Model Content

[0005] The present application provides a circuit breaker accessory and an intelligent circuit breaker to improve the structural rationality of the circuit breaker accessory, thereby improving the comprehensive performance of the intelligent circuit breaker including the circuit breaker accessory.

[0006] In a first aspect, the present application provides a circuit breaker accessory, comprising a base and an external module. The base includes an insertion opening that communicates with the interior space of the base. The external module can be inserted into the base through the insertion opening. The base is disposed within a cover of the circuit breaker body, and the external module is inserted into the base through the insertion opening and can be electrically connected to a controller within the circuit breaker body.

[0007] Through the above solution, the external module can be inserted into the base through the insertion opening of the base and electrically connected to the controller inside the circuit breaker body, so that the circuit breaker accessory and the intelligent circuit breaker containing the circuit breaker accessory can have the intelligent monitoring, intelligent metering and other functions of the external module, which is convenient for enriching the use functions of the intelligent circuit breaker and expanding the scope of application of the intelligent circuit breaker. In addition, the external module can be inserted into the base through the insertion opening of the base, indicating that the external module for realizing the intelligent function is molded separately from the base. In this way, it is convenient for the operator to insert the external module with the appropriate function into the base according to the functional requirements. When other functions need to be realized, the inserted external module can also be pulled out from the base and replaced with an external module with other functions, which improves the convenience of use and structural rationality of the circuit breaker accessory.

[0008] In one possible design, a partition is provided within the base, dividing the interior space of the base into a first mounting cavity and a second mounting cavity. The circuit breaker accessory also includes a retaining assembly located within the first mounting cavity. The external module includes a first portion and a second portion connected to each other, with the first portion positioned opposite the first mounting cavity and the second portion positioned opposite the second mounting cavity. After the external module is inserted into the base through the insertion opening, the retaining assembly locks the external module to prevent it from falling out of the insertion opening.

[0009] With this solution, the stop assembly is located within the first mounting cavity. After the external module is inserted into the base through the insertion opening, the stop assembly locks the external module, restricting its position relative to the base to reduce the possibility of the external module falling out of the insertion opening. This ensures the stability of the external module's position within the base, thereby ensuring the stability of the connection between the external module and the controller.

[0010] In one possible design, the limiting assembly includes a first limiting member and a second limiting member. The first end of the first limiting member is connected to the base, the second end of the first limiting member cooperates with the second limiting member, and the first limiting member can lock the second limiting member so that the position of the second limiting member relative to the first mounting cavity remains fixed. The second limiting member is provided with a hook portion on the side facing the second part, and a hook groove is provided on the side of the second part facing the second limiting member, or the second limiting member is provided with a hook groove on the side facing the second part, and a hook portion is provided on the side of the second part facing the second limiting member; wherein the hook portion is adapted to the hook groove. When the first limiting member locks the second limiting member, the hook portion is locked with the hook groove to lock the external module.

[0011] With this solution, when the first stopper locks the second stopper, the second stopper's position relative to the first mounting cavity remains fixed, or in other words, its position relative to the base remains fixed. This allows the second stopper to lock the external module, restricting its position relative to the base. The second stopper locks the external module by locking the hook portion with the hook groove, resulting in a simple, easy-to-implement structure and a reliable locking relationship.

[0012] In one possible design, the second position-limiting member is provided with a push portion. During the process of inserting the external module from the insertion opening into the base, the first portion can push against the push portion, causing the second position-limiting member to move within the first mounting cavity. The second position-limiting member is provided with a first groove, a second groove, and a third groove. The first groove and the third groove are both connected to the second groove. The first groove is closer to the first end of the first position-limiting member than the second groove, and the third groove is closer to the insertion opening than the second groove. The bottom of the first groove and the bottom of the second groove are smoothly transitioned. During the process of the first portion pushing against the push portion, the second end of the first position-limiting member can move from the first groove to the second groove, and then from the second groove to the third groove, and be locked in the third groove.

[0013] With the above solution, the second stopper is provided with a push portion and has a first slot, a second slot, and a third slot that are interconnected. The first portion pushes against the push portion during the insertion of the external module from the insertion opening into the base, causing the second end of the first stopper to move from the first slot to the second slot, and then from the second slot to the third slot, where it can be locked with the third slot. When the second end of the first stopper is locked in the third slot, the first stopper can lock the second stopper, thereby facilitating the second stopper's locking of the external module.

[0014] In one possible design, the circuit breaker accessory further includes an elastic member. The base includes a first wall opposite the insertion opening, a first end of the elastic member abuts the first wall, and a second end of the elastic member abuts the second retaining member. The first portion pushes against the second retaining member, causing the elastic member to compress and store energy as the second retaining member moves toward the first wall within the first mounting cavity. When the first portion releases the pushing force on the pushing portion, the elastic member releases energy, and the second end of the elastic member is able to push against the second retaining member, locking the second end of the first retaining member into the third slot.

[0015] With this solution, the elastic member compresses and stores energy as the first portion pushes the second stopper toward the first wall. When the resistance to the second stopper is lifted, the elastic member releases the energy and pushes the second stopper, causing the second stopper to move away from the first wall relative to the first stopper. As the second stopper moves away from the first wall, the second end of the first stopper moves from the second groove to the third groove and locks therein, thereby locking the second stopper with the first stopper.

[0016] In one possible design, the second limiting member further comprises a fourth groove, one end of the fourth groove being connected to the third groove, the other end of the fourth groove being connected to the first groove, and the fourth groove being opposite the first groove. After the second end of the first limiting member is locked in the third groove, while the first portion continues to push against the second limiting member, the second end of the first limiting member can enter the fourth groove from the third groove, and then enter the first groove from the fourth groove, thereby releasing the lock of the second end of the first limiting member on the second limiting member.

[0017] The fourth slot is opposite to and communicates with the first slot. After the second end of the first stopper moves to the fourth slot, under the action of an external force, the second end of the first stopper can enter the first slot from the fourth slot, thereby releasing the lock of the second end of the first stopper on the second stopper. After the second end of the first stopper releases the lock on the second stopper, the lock between the hook portion and the hook slot can be released, thereby unlocking the external module from the stopper assembly.

[0018] In one possible design, a first step surface is provided between the second and third grooves, the first step surface being used to prevent the second end of the first position-limiting member from entering the second groove from the third groove. Alternatively, a second step surface is provided between the third and fourth grooves, the second step surface being used to prevent the second end of the first position-limiting member from entering the third groove from the fourth groove. Alternatively, a third step surface is provided between the fourth groove and the first groove, the third step surface being used to prevent the second end of the first position-limiting member from entering the fourth groove from the first groove.

[0019] Through the above scheme, the setting of the first step surface, the second step surface, the third step surface and the fourth step surface can ensure the certainty of the moving direction of the second end of the first limit member, so that the second end of the first limit member can move according to a pre-designed route, thereby ensuring the reliable realization of the locking relationship and unlocking relationship between the first limit member and the second limit member.

[0020] In one possible design, the circuit breaker accessory further includes a cover that covers the side of the base plate of the retaining assembly away from the base. The insertion opening and the first wall are located on opposite sides of the base plate in the insertion direction (the insertion direction is the direction in which the external module is inserted into the base). The cover is provided with a first connecting structure, and the base is provided with a second connecting structure, and the first connecting structure and the second connecting structure cooperate.

[0021] With the above solution, the cover body blocks the side of the limit assembly away from the bottom plate of the base. The cover body is provided with a first connecting structure, and the base is provided with a second connecting structure. The first connecting structure and the second connecting structure cooperate to connect the cover body to the base, and the limit assembly is fixed to the first mounting cavity through the cover body. In this way, the limit assembly will not easily fall out of the first mounting cavity during use.

[0022] In a possible design, the circuit breaker accessory further includes an indicator light, which is installed in the first installation cavity at a position close to the insertion opening.

[0023] Through the above solution, the indicator light can indicate whether the external module is connected or not. In addition, since the insertion opening is the side of the base that is convenient for the operator to operate and observe, the indicator light is installed in the first installation cavity near the insertion opening. This allows the operator to observe the status of the indicator light from the insertion opening side, so that the operator can determine the connection status of the external module based on the status of the indicator light.

[0024] In a second aspect, the present application provides an intelligent circuit breaker, comprising a circuit breaker body and the circuit breaker accessory of the first aspect. The circuit breaker body comprises a cover, a body, and a controller. The cover and body overlap, the cover defining a storage space. The circuit breaker accessory is located within the storage space and connected to the cover. The circuit breaker accessory is also electrically connected to the controller.

[0025] The intelligent circuit breaker provided in this application comprises a circuit breaker body and circuit breaker accessories, with the circuit breaker accessories being electrically connected to a controller within the circuit breaker body. This allows the controller to control the circuit breaker accessories to perform corresponding operations, enabling the intelligent circuit breaker to intelligently implement the functions of the circuit breaker accessories. Furthermore, this application optimizes the structure of the circuit breaker accessories, allowing them to be located within the accommodating space of the cover and connected to the cover. This effectively utilizes the space within the circuit breaker body without occupying additional space outside the body. As a result, the installation of the circuit breaker accessories does not increase the overall size of the intelligent circuit breaker.

[0026] The beneficial effects of the intelligent circuit breaker provided in the second aspect and the various possible designs of the second aspect can be referred to the beneficial effects brought about by the first aspect and the various possible implementation methods of the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the combined structure of a circuit breaker accessory provided in an embodiment of the present application.

[0028] Figure 2 This is an exploded view of a circuit breaker accessory provided in an embodiment of the present application.

[0029] Figure 3 It is a structural schematic diagram of a base provided in an embodiment of the present application.

[0030] Figure 4 This is a structural diagram of the external module provided in an embodiment of the present application at one viewing angle.

[0031] Figure 5This is a structural diagram of the external module provided in an embodiment of the present application from another perspective.

[0032] Figure 6 This is a structural diagram of a first position-limiting member provided in an embodiment of the present application.

[0033] Figure 7 3 is a schematic structural diagram of the second limiting member provided in an embodiment of the present application at one viewing angle.

[0034] Figure 8 This is a schematic structural diagram of the second limiting member provided in an embodiment of the present application from another perspective.

[0035] Figure 9 This is a partial structural diagram of the embodiment of the present application when the second end of the first limiting member is located in the first groove.

[0036] Figure 10 This is a partial structural diagram of the embodiment of the present application when the second end of the first limiting member is located in the second groove.

[0037] Figure 11 This is a partial structural diagram of the embodiment of the present application when the second end of the first limiting member is located at the connection between the second groove and the third groove.

[0038] Figure 12 This is a partial structural diagram of the second end of the first limiting member provided in an embodiment of the present application when it is locked in the third groove.

[0039] Figure 13 This is a partial structural diagram of the embodiment of the present application when the second end of the first limiting member is located in the fourth groove.

[0040] Figure 14 yes Figure 8 Enlarged view of part A.

[0041] Figure 15 This is a structural diagram of a cover provided in an embodiment of the present application.

[0042] Description of reference numerals:

[0043] 100. Circuit breaker accessories;

[0044] 110, base; 111, insertion opening; 112, bottom plate; 1121, mounting hole; 113, first wall; 114, second wall; 115, third wall; 116, connecting ear; 1161, first connecting hole; 117, partition; 1171, through groove; M1, first guide slope; 118, first mounting cavity; 119, second mounting cavity; XW, limiting structure; LJ2, second connecting structure;

[0045] 120, external module; 121, first part; 122, second part; 1221, hook groove;

[0046] 130, limit assembly; 131, first limit member; 1311, first end; 1312, second end; 132, second limit member; 1321, hook portion; M2, second guide slope; 1322, push portion; 1323, first groove; 1324, second groove; 1325, third groove; 13251, first sub-groove; 13252, second sub-groove; 1326, fourth groove;

[0047] TM1, first step surface; TM2, second step surface; TM3, third step surface; TM4, fourth step surface;

[0048] 140, elastic member;

[0049] 150. Cover body; LJ1. First connecting structure; 151. Installation position. DETAILED DESCRIPTION

[0050] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. 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.

[0051] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art 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; the terms "including" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover non-exclusive inclusions.

[0052] References to "embodiments" herein mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiment" in various places in the specification does not necessarily refer to the same embodiment, nor does it necessarily refer to independent or alternative embodiments that are mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0053] The term "and / or" in this document simply describes a relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists, A and B exist, and B exists. Additionally, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0054] The directional words appearing in the following description are all directions shown in the drawings and do not limit the specific structure of the circuit breaker accessories and intelligent circuit breakers of this application. For example, in the description of this application, the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., which indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operate in a specific direction, and therefore should not be understood as limiting this application.

[0055] In addition, the terms "first", "second", etc. in the description and claims of this application or the above-mentioned drawings are used to distinguish different objects, rather than to describe a specific order, and may explicitly or implicitly include one or more such features.

[0056] In the description of this application, unless otherwise specified, "plurality" means more than two (including two), and similarly, "multiple groups" means more than two (including two).

[0057] In the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, "connected" or "connected" in a mechanical structure can refer to a physical connection. For example, a physical connection can be a fixed connection, such as a fixed connection via a barrier, such as a screw, bolt, or other barrier. A physical connection can also be a removable connection, such as a snap-fit ​​connection. A physical connection can also be an integral connection, such as a connection formed by welding, bonding, or integral molding. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances. "Connected" or "connected" in a circuit structure can refer not only to a physical connection, but also to an electrical connection or a signal connection. For example, it can be a direct connection, i.e., a physical connection, or an indirect connection through at least one intermediate component, as long as circuit connectivity is achieved. It can also refer to internal communication between two components. A signal connection can refer not only to signal connection through an electrical circuit, but also to signal connection through a media medium, such as radio waves. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0058] A circuit breaker is an electrical device that connects a circuit under normal conditions and disconnects it in the event of a fault. As the scope of intelligent power distribution expands, demands for circuit breaker functionality, such as measurement, are increasing. Therefore, research is needed on circuit breaker accessories that implement these functions to provide intelligent circuit breakers with superior overall performance.

[0059] The present application provides an intelligent circuit breaker, comprising a circuit breaker body (not shown in the figure) and Figure 1 The circuit breaker accessory 100 shown in the figure includes a cover, a body and a controller. The cover and the body cover each other. The cover has a receiving space. The circuit breaker accessory 100 is located in the receiving space and is connected to the cover. The circuit breaker accessory 100 is also electrically connected to the controller.

[0060] The circuit breaker body is the part of the intelligent circuit breaker used to realize the most basic circuit protection function. It can automatically cut off the circuit when faults such as overload, circuit breaker, undervoltage, etc. occur in the circuit to protect the safety of electrical equipment and lines.

[0061] The circuit breaker body may include a cover, a main body, and a controller. The cover is mounted on and fixed to the main body. The cover has a storage space and, when installed on the main body, protects certain components within the circuit breaker body. The cover can also be used to display markings, allowing operators to understand the specifications of the circuit breaker body and the operating conditions within the main body.

[0062] The controller can be located within the body or within the space defined by the body and the cover, which is not limited in this application. The controller has a control function and is electrically connected to the circuit breaker accessory 100. In this way, the controller can control the circuit breaker accessory 100 to perform corresponding operations, thereby realizing the intelligent functions of the circuit breaker accessory 100.

[0063] For example, the circuit breaker accessory 100 may be an accessory for realizing functions such as monitoring and metering. The present application does not limit the type and function of the circuit breaker accessory 100 .

[0064] The output terminal of the controller can be electrically connected to the control terminal of the circuit breaker accessory 100 via a wire. Alternatively, one of the controller and the circuit breaker accessory 100 can be provided with a socket, and the other can be provided with a plug, which is compatible with the socket. The controller and the circuit breaker accessory 100 can be electrically connected through the plug and socket. This application does not limit the electrical connection method between the controller and the circuit breaker accessory 100.

[0065] The smart circuit breaker provided herein comprises a circuit breaker body and a circuit breaker accessory 100. The circuit breaker accessory 100 is electrically connected to a controller within the circuit breaker body. This allows the controller to control the circuit breaker accessory 100 to perform corresponding operations, enabling the smart circuit breaker to intelligently implement the functions of the circuit breaker accessory 100.

[0066] In addition, the present application optimizes the structure of the circuit breaker accessory 100, allowing it to be located within the accommodating space of the cover and connected to the cover. In other words, the circuit breaker accessory 100 in the present application is located within the circuit breaker body, rather than being externally mounted or connected to the circuit breaker body. Compared to circuit breaker accessories 100 being externally mounted or connected to the circuit breaker body, the circuit breaker accessory 100 in the present application is located within the accommodating space of the cover, effectively utilizing the space within the circuit breaker body without occupying additional space outside the circuit breaker body. In this way, the provision of the circuit breaker accessory 100 does not increase the overall size of the intelligent circuit breaker.

[0067] Without increasing the overall size of the intelligent circuit breaker, the problem of insufficient space when the intelligent circuit breaker is installed in the power distribution cabinet can be avoided.

[0068] In summary, the circuit breaker accessory 100 in the intelligent circuit breaker provided in the present application has a reasonable structural design, so that the circuit breaker accessory 100 does not occupy additional space outside the circuit breaker body while realizing the intelligent function, thereby enabling the intelligent circuit breaker to realize the intelligent function while maintaining the original volume unchanged, and can be more conveniently installed in the distribution cabinet for use, and its overall performance is better.

[0069] The circuit breaker accessory 100 provided in this application will be described in detail below with reference to the accompanying drawings.

[0070] like Figures 1 to 3 As shown, the circuit breaker accessory 100 provided in this application includes a base 110 and an external module 120. The base 110 includes an insertion opening 111, which communicates with the interior space of the base 110. The external module 120 can be inserted into the base 110 through the insertion opening 111. The base 110 is disposed within the cover of the circuit breaker body. The external module 120 is inserted into the base 110 through the insertion opening 111 and can be electrically connected to the controller within the circuit breaker body.

[0071] The base 110 may be substantially dustpan-shaped. Figure 3 As shown, the base 110 includes an insertion opening 111, a bottom plate 112, a first wall 113, a second wall 114, and a third wall 115. The insertion opening 111 is located opposite the first wall 113, and the second wall 114 is located opposite the third wall 115. Assuming that the direction in which the external module 120 is inserted into the base 110 from the insertion opening 111 is referred to as the insertion direction, the insertion opening 111 and the first wall 113 are located on either side of the bottom plate 112 in this insertion direction, and the second wall 114 and the third wall 115 are located between the insertion opening 111 and the first wall 113 in this insertion direction.

[0072] First wall 113, second wall 114, and third wall 115 serve as flanges connected to base plate 112. First wall 113, second wall 114, and third wall 115 are connected to the same side of base plate 112, creating an internal space for base 110 to accommodate other components. Insertion opening 111 communicates with this internal space, allowing external module 120 to be inserted into the internal space of base 110 through insertion opening 111.

[0073] The bottom plate 112 , the first wall 113 , the second wall 114 and the third wall 115 may be integrally formed, or may be separately formed and then assembled into the base 110 , which is not limited in this embodiment of the present application.

[0074] It should be noted that the base 110 may also be any other regular or irregular shape, as long as the base 110 can reasonably utilize the space inside the cover and facilitate the installation of other structural components in the circuit breaker accessory 100. This application does not limit the shape of the base 110. Figure 3 The dustpan-shaped structure shown is only an example and does not constitute a limitation to the technical solution of the present application.

[0075] Based on the previous description, the cover has a storage space, so in this application, the base 110 can be placed within the storage space of the cover. In addition, the base 110 has an internal space and an insertion opening 111 that are interconnected, so the external module 120 can be inserted into the base 110 through the insertion opening 111 and can be electrically connected to the controller inside the circuit breaker body.

[0076] In a specific implementation, the cover can be pre-set with a through-hole, and the base 110 can be pre-placed within the cover's accommodation space. The insertion opening 111 on the base 110 is aligned with the through-hole in the cover, and the base 110 and the cover are fixedly connected, thereby securing the base 110 to the cover. The cover is then placed over the main body of the circuit breaker and fixedly connected thereto. The external module 120 is then inserted into the base 110 through the through-hole in the cover and the insertion opening 111 in the base 110, thus securing the external module 120 within the base 110.

[0077] The external module 120 can be placed at any position on the front, top, bottom, left, or right side of the cover, and the vias can be located at any suitable position on the cover.

[0078] After being installed in the base 110, the external module 120 can be electrically connected to the controller within the circuit breaker body to implement the intelligent functions of the circuit breaker accessory 100. The external module 120 is a functional module of the circuit breaker accessory 100. The external module 120 can be used to implement functions such as monitoring and metering.

[0079] Please continue to refer to Figure 3 , the second wall 114 and the third wall 115 may be provided with connecting ears 116, and the connecting ears 116 may be provided with a first connecting hole 1161. After the base 110 is placed in a predetermined position in the accommodation space of the face cover, the connecting ears 116 can fit against the wall surface of the face cover. The wall surface that fits against the connecting ears 116 can be provided with a second connecting hole, and the second connecting hole is located opposite to the first connecting hole 1161. In this way, fasteners such as screws or rivets can pass through the first connecting hole 1161 and the second connecting hole to securely connect the base 110 to the face cover. In addition, the fixed connection can be achieved by hot melt, rivets, etc.

[0080] The connection method between the cover and the body can refer to the relevant technology, and this application does not expand or limit it.

[0081] The external module 120 is electrically connected to the controller, which is equivalent to the electrical connection between the circuit breaker accessory 100 and the controller. Therefore, the electrical connection between the external module 120 and the controller can refer to the electrical connection between the circuit breaker accessory 100 and the controller, and will not be repeated here.

[0082] In summary, the circuit breaker accessory 100 provided in the present application includes an external module 120 and a base 110. The external module 120 can be inserted into the base 110 through the insertion opening 111 of the base 110 and electrically connected to the controller in the circuit breaker body, so that the circuit breaker accessory 100 and the intelligent circuit breaker including the circuit breaker accessory 100 can have the intelligent monitoring, intelligent metering and other functions of the external module 120, which is convenient for enriching the use functions of the intelligent circuit breaker and expanding the scope of application of the intelligent circuit breaker.

[0083] Furthermore, the external module 120 can be inserted into the base 110 through the insertion opening 111 of the base 110, indicating that the external module 120 for implementing the intelligent function is formed separately from the base 110. This facilitates the operator to insert the external module 120 with the appropriate function into the base 110 according to the functional requirements. When other functions are required, the inserted external module 120 can be removed from the base 110 and replaced with an external module 120 with a different function, thereby improving the ease of use and structural rationality of the circuit breaker accessory 100.

[0084] Furthermore, the base 110 of the circuit breaker accessory 100 of the present application is located within the cover of the circuit breaker body, and the external module 120 is inserted into the base 110 through the insertion opening 111. This indicates that the circuit breaker accessory 100 of the present application can be entirely located within the accommodation space of the cover. It also indicates that the circuit breaker accessory 100 is located within the circuit breaker body, rather than being externally mounted or connected to the circuit breaker body. In this way, when implementing the intelligent functions of the circuit breaker accessory 100, the space within the circuit breaker body can be effectively utilized without occupying additional space outside the circuit breaker body. This effectively avoids the problem of the intelligent circuit breaker being unable or inconvenient to install in the power distribution cabinet due to the installation of the circuit breaker accessory 100.

[0085] As can be seen, the circuit breaker accessory 100 provided in this application has a reasonable structural design. This structural optimization enables the intelligent circuit breaker incorporating the circuit breaker accessory 100 to have relatively good overall performance. For example, the intelligent circuit breaker not only has intelligent functions such as intelligent monitoring and intelligent metering, but also the external module 120 used to implement these intelligent functions can be replaced according to functional requirements and can be easily installed in a power distribution cabinet.

[0086] In summary, the circuit breaker accessory 100 in the intelligent circuit breaker provided in the present application has a reasonable structural design, so that the circuit breaker accessory 100 does not occupy additional space outside the circuit breaker body while realizing intelligent functions, thereby enabling the intelligent circuit breaker to realize intelligent functions while maintaining its original volume. It can be more conveniently installed in a distribution cabinet for use, and its overall performance is better.

[0087] In some embodiments, as Figure 3As shown, a partition 117 may be provided in the base 110, and the partition 117 divides the internal space of the base 110 into a first installation cavity 118 and a second installation cavity 119. Figure 2 and Figure 3 The circuit breaker accessory 100 may further include a limiting assembly 130 , which is located in the first installation cavity 118 .

[0088] Partition 117 is flat and can be substantially parallel to second wall 114 and third wall 115. Partition 117 divides the interior of base 110 into a first mounting cavity 118 and a second mounting cavity 119. First mounting cavity 118 is relatively close to second wall 114, while second mounting cavity 119 is relatively close to third wall 115. The size of first mounting cavity 118 can be the same as that of second mounting cavity 119, but can also be different, and this is not limited in this application.

[0089] The partition 117 is connected to the bottom plate 112 and / or the first wall 113. The bottom plate 112 and / or the first wall 113 can be integrally formed with the partition 117, or the bottom plate 112 and / or the first wall 113 can be separately formed and assembled with the partition 117, which is not limited in this application.

[0090] like Figure 4 and Figure 5 As shown, the external module 120 may include a first portion 121 and a second portion 122 connected to each other. Figures 3 to 5 The first portion 121 is opposite to the first installation cavity 118 , and the second portion 122 is opposite to the second installation cavity 119 .

[0091] by Figure 4 and Figure 5 Taking the plate-shaped external module 120 as an example, the thickness of the first portion 121 can be smaller than the thickness of the second portion 122. The dimensions of the first portion 121 in each direction can be set based on the dimensions of the first mounting cavity 118 in the corresponding direction, and the dimensions of the second portion 122 in each direction can be set based on the dimensions of the second mounting cavity 119 in the corresponding direction.

[0092] Combine Figures 2 to 5 The limiting assembly 130 is located in the first mounting cavity 118. After the external module 120 is inserted into the base 110 through the insertion opening 111, the limiting assembly 130 can lock the external module 120 to prevent the external module 120 from falling out of the insertion opening 111. The limiting assembly 130 can cooperate with the first portion 121 to lock the external module 120. Alternatively, the limiting assembly 130 can also cooperate with the second portion 122 to lock the external module 120, which is not limited in this application.

[0093] The circuit breaker accessory 100 of the present application includes a limiting assembly 130, which is located in the first installation cavity 118. After the external module 120 is inserted into the base 110 through the insertion opening 111, the limiting assembly 130 can lock the external module 120, limiting the position of the external module 120 relative to the base 110, thereby reducing the possibility of the external module 120 falling out of the insertion opening 111 of the base 110. In this way, the position stability of the external module 120 in the base 110 can be ensured, thereby ensuring the stability of the connection between the external module 120 and the controller.

[0094] The specific structure of the limiting component 130 and the specific implementation method of the limiting component 130 to limit the position of the external module 120 are described in detail below with reference to the accompanying drawings.

[0095] Figure 6 A structure of the first limiting member 131 is shown, as shown in FIG. Figure 2 、 Figure 3 and Figure 6 As shown, the limiting assembly 130 may include a first limiting member 131 and a second limiting member 132. A first end 1311 of the first limiting member 131 is connected to the base 110, and a second end 1312 of the first limiting member 131 cooperates with the second limiting member 132. The first limiting member 131 can lock the second limiting member 132, so that the position of the second limiting member 132 relative to the first mounting cavity 118 remains unchanged.

[0096] like Figure 6 As shown, the first limiting member 131 includes a first end 1311 and a second end 1312 located opposite to each other. The first end 1311 and the second end 1312 are bent in the same direction relative to the middle portion of the first limiting member 131 to form a hook-shaped structure.

[0097] Please refer to Figure 3 and Figure 6 The bottom plate 112 of the base 110 may be provided with a mounting hole 1121, and the first end 1311 of the first position-limiting member 131 may be inserted into the mounting hole 1121 and hooked with the mounting hole 1121 to achieve the installation of the first end 1311 of the first position-limiting member 131 on the base 110. It should be noted that in the present application, after the first end 1311 of the first position-limiting member 131 is inserted into the mounting hole 1121, the first end 1311 can rotate within the mounting hole 1121 but will not fall out of the mounting hole 1121.

[0098] The second retaining member 132 has a slot structure, and the second end 1312 of the first retaining member 131 is located in the slot structure. The second end 1312 of the first retaining member 131 is movable within the slot structure and can be locked with the slot structure. When the second end 1312 is locked with the slot structure, the first retaining member 131 locks the second retaining member 132, thereby fixing the position of the second retaining member 132 relative to the first mounting cavity 118.

[0099] In some examples, the length of the hook structure at the first end 1311 can be greater than the length of the hook structure at the second end 1312. Providing a longer length for the first end 1311 allows a greater length for the first end 1311 to extend into the mounting hole 1121, thereby improving the reliability of the connection between the first end 1311 and the mounting hole 1121. Providing a shorter length for the second end 1312 reduces the possibility of the second end 1312 becoming stuck when moving within the slot structure.

[0100] When the first limiting member 131 locks the second limiting member 132, the position of the second limiting member 132 relative to the first mounting cavity 118 remains fixed, or in other words, the position of the second limiting member 132 relative to the base 110 remains fixed. In this way, the second limiting member 132 can lock the external module 120 to limit the position of the external module 120 relative to the base 110.

[0101] When the second limiting member 132 is used to lock the external module 120, in some embodiments, such as Figure 4 、 Figure 5 、 Figure 7 and Figure 8 As shown, a hook portion 1321 is provided on the side of the second stopper 132 facing the second portion 122, and a hook groove 1221 is provided on the side of the second portion 122 facing the second stopper 132. The hook portion 1321 is adapted to fit within the hook groove 1221. When the first stopper 131 locks the second stopper 132, the hook portion 1321 locks with the hook groove 1221, thereby locking the external module 120.

[0102] like Figure 3 As shown, the partition 117 may be provided with a through slot 1171 communicating with the first mounting cavity 118 and the second mounting cavity 119. Figures 3 to 8 The hook portion 1321 provided on the second limiting member 132 can at least partially pass through the through slot 1171 from the first installation cavity 118 and be located in the second installation cavity 119 so as to be locked with the hook slot 1221 provided on the second portion 122 in the second installation cavity 119 .

[0103] In other embodiments, a hook groove 1221 is defined on the side of the second stopper 132 facing the second portion 122, and a hook portion 1321 is defined on the side of the second portion 122 facing the second stopper 132. The hook portion 1321 fits in the hook groove 1221. When the first stopper 131 locks the second stopper 132, the hook portion 1321 locks with the hook groove 1221, thereby locking the external module 120.

[0104] Compared to Figure 4 、 Figure 5 and Figure 7 、 Figure 8 In the embodiment shown, the positions of the hook groove 1221 and the hook portion 1321 are swapped. Figure 3 As shown, the partition 117 can be provided with a through groove 1171 connecting the first mounting cavity 118 and the second mounting cavity 119, and the hook portion 1321 provided on the second part 122 can at least partially pass through the through groove 1171 from the second mounting cavity 119 and be located in the first mounting cavity 118, so as to be locked with the hook groove 1221 provided on the first part 121 in the first mounting cavity 118.

[0105] In this embodiment, when the first limiting member 131 locks the second limiting member 132, the position of the second limiting member 132 relative to the first mounting cavity 118 remains fixed, or in other words, the position of the second limiting member 132 relative to the base 110 remains fixed. Thus, the second limiting member 132 can lock the external module 120, thereby restricting the position of the external module 120 relative to the base 110. The locking of the external module 120 by the second limiting member 132 is achieved by the locking of the hook portion 1321 with the hook groove 1221. This structure is simple, easy to implement, and the locking relationship is relatively reliable.

[0106] In some embodiments, as Figure 7 and Figure 8 As shown, the second limiting member 132 is provided with a push portion 1322. Figures 3 to 8 When the external module 120 is inserted into the base 110 through the insertion opening 111 , the first portion 121 can push the pushing portion 1322 , so that the second limiting member 132 moves within the first installation cavity 118 .

[0107] The push portion 1322 may be a columnar structure provided on the second position-limiting member 132. When the first portion 121 is inserted into the base 110, it contacts and pushes the push portion 1322, so that the push portion 1322 drives the second position-limiting member 132 to move within the first installation cavity 118.

[0108] like Figure 7 and Figure 8As shown, the aforementioned groove structure includes a first groove 1323, a second groove 1324 and a third groove 1325, or in other words, the second limiting member 132 is provided with a first groove 1323, a second groove 1324 and a third groove 1325. The first groove 1323 and the third groove 1325 are both connected to the second groove 1324. Figure 3 、 Figures 6 to 8 The first groove 1323 is closer to the first end 1311 of the first limiting member 131 than the second groove 1324 , and the third groove 1325 is closer to the insertion opening 111 than the second groove 1324 . The bottom of the first groove 1323 and the bottom of the second groove 1324 are smoothly transitioned.

[0109] The first groove 1323 and the third groove 1325 are both connected to the second groove 1324, and the first groove 1323 and the third groove 1325 are not at the same end as the second groove 1324, that is, there is a non-zero angle between the first groove 1323 and the second groove 1324, and between the second groove 1324 and the third groove 1325.

[0110] Combine Figure 3 、 Figure 7 and Figure 8 In this application, the second groove 1324 is inclined toward the second wall 114 compared to the first groove 1323, and the third groove 1325 is inclined toward the third wall 115 compared to the second groove 1324. It should be noted that, Figure 7 and Figure 8 The relationship between the first groove 1323, the second groove 1324 and the third groove 1325 shown in the figure does not constitute a limitation on the technical solution of the present application.

[0111] The bottom of the first groove 1323 is connected to the bottom of the second groove 1324. The bottom of the first groove 1323 is the groove wall closest to the bottom plate 112 of the base 110 in the first groove 1323. Similarly, the bottom of the second groove 1324 is the groove wall closest to the bottom plate 112 in the second groove 1324.

[0112] The bottom of the first groove 1323 and the bottom of the second groove 1324 may have at least the following relationships.

[0113] Relationship 1: The bottoms of the first groove 1323 and the second groove 1324 are both flat, and the bottoms of the first groove 1323 and the second groove 1324 are coplanar. Relationship 2: The bottoms of the first groove 1323 and the second groove 1324 are both flat, but the bottoms of the first groove 1323 and the second groove 1324 are not coplanar. Relationship 3: At least one of the bottoms of the first groove 1323 and the second groove 1324 is a curved surface.

[0114] Regardless of the relationship between the bottom of the first groove 1323 and the bottom of the second groove 1324 , as long as there is a smooth transition between the bottom of the first groove 1323 and the bottom of the second groove 1324 , the second end 1312 of the first limiting member 131 can smoothly move from the first groove 1323 to the second groove 1324 .

[0115] Based on the above structural relationship between the first limiting member 131, the second limiting member 132, and the external module 120, in the initial state, or in other words, when the first portion 121 does not push against the pushing portion 1322, the second end 1312 of the first limiting member 131 is located in the first groove 1323. Figures 6 to 9 In this state, the first limiting member 131 does not lock the second limiting member 132 , and the second locking member does not lock the external module 120 .

[0116] As the external module 120 is inserted into the base 110, the first portion 121 pushes against the pushing portion 1322. During this process, the second end 1312 of the first limiting member 131 can move from the first groove 1323 to the second groove 1324. Figures 6 to 8 ,as well as Figure 10 When arriving Figure 11 In critical state, such as Figures 6 to 8 ,as well as Figure 12 As shown, the second end 1312 of the first limiting member 131 can move from the second groove 1324 to the third groove 1325. When the pushing force of the first portion 121 on the pushing portion 1322 is released, the second end 1312 of the first limiting member 131 can be locked in the third groove 1325, thereby achieving the locking of the first limiting member 131 on the second limiting member 132.

[0117] When the first stopper 131 locks the second stopper 132, the hook portion 1321 locks with the hook groove 1221 to lock the external module 120. In this way, the position of the external module 120 relative to the base 110 remains unchanged, and the external module 120 will not fall out of the insertion opening 111.

[0118] The critical state can be that the second limiting member 132 is pushed by the first portion 121 and moves to the position where the second limiting member 132 is moved. Figure 3 The state corresponding to when the first portion 113 is blocked by the preset limiting structure XW and cannot continue to move toward the first wall 113. Alternatively, the critical state can be the state corresponding to when the second portion 122 of the external module 120 moves to abut against the first wall 113 and cannot continue to move toward the first wall 113. Alternatively, under the premise that the second groove 1324 and the third groove 1325 have a non-zero angle, the critical state can also be the state corresponding to when the second end 1312 of the first limiting member 131 moves to the connection between the second groove 1324 and the third groove 1325, as shown in FIG. Figure 11This application does not specifically limit the critical state.

[0119] When the critical state is reached, the second end 1312 of the first limiting member 131 can move from the second groove 1324 to the third groove 1325 . Possible implementation methods are as follows:

[0120] Implementation method 1: The circuit breaker accessory 100 is installed in a vertical position on the circuit breaker body. When the critical state is reached, the second end 1312 of the first limiting member 131 moves to the third slot 1325 under the action of gravity.

[0121] Implementation method 2: The circuit breaker accessory 100 is mounted horizontally on the circuit breaker body. By properly setting the length of the first stopper 131, the angle between the second slot 1324 and the third slot 1325, and the matching relationship between the first stopper 131 and the second and third slots 1324 and 1325, the second end 1312 of the first stopper 131 can be smoothly moved past the critical state to the third slot 1325.

[0122] The present application can also achieve the movement of the second end 1312 of the first limiting member 131 from the second groove 1324 to the third groove 1325 by setting a tension spring and pulling the second end 1312 of the first limiting member 131 through the tension spring. The present application does not make specific limitations on this.

[0123] When the pushing force of the first portion 121 on the pushing portion 1322 is released, the second end 1312 of the first limiting member 131 can be locked in the third groove 1325 in the following manner:

[0124] When the circuit breaker accessory 100 is installed in a vertical position on the circuit breaker body, the third slot 1325 can be set to a bent shape. When the second end 1312 of the first limit member 131 moves to a certain position of the third slot 1325 under the action of gravity, it will abut against the slot wall of the third slot 1325 and cannot move further. In this way, the second end 1312 can be locked in the third slot 1325.

[0125] Alternatively, regardless of whether the circuit breaker accessory 100 is mounted on the circuit breaker body in a vertical or horizontal state, the third slot 1325 is configured as follows: Figure 7 and Figure 8 The bending shape shown, based on this, as Figure 3 、 Figures 7 to 13 As shown, an elastic member 140 may be provided between the second limiting member 132 and the fixed first wall 113 , with a first end of the elastic member 140 abutting against the first wall 113 , and a second end of the elastic member 140 abutting against the second limiting member 132 .

[0126] Before reaching the critical state, the first portion 121 pushes against the second limiting member 132, causing the elastic member 140 to compress and store energy as the second limiting member 132 moves within the first mounting cavity 118 toward the first wall 113. When the critical state is reached and the first portion 121 releases its pushing force on the pushing portion 1322, the elastic member 140 releases its energy, allowing the second end 1312 of the elastic member 140 to push against the second limiting member 132, causing the second end 1312 of the first limiting member 131 to move from the second groove 1324 to the third groove 1325 and lock into the third groove 1325.

[0127] The elastic member 140 may be a compression spring.

[0128] The above description focuses on how the position limiting assembly 130 locks the external module 120, allowing the external module 120 to utilize its intelligent functions when the position limiting assembly 130 locks the external module 120. The following describes how the circuit breaker accessory 100 of the present application achieves unlocking of the external module 120 and the position limiting assembly 130, in conjunction with the accompanying drawings.

[0129] First, it should be noted that the third slot 1325 is as follows Figure 7 and Figure 8 The bent shape shown in FIG. 1 is a folded shape, and the bent portion of the third groove 1325 is closer to the first wall 113. Based on this, the second end 1312 of the first stopper 131 is locked in the third groove 1325. When the second stopper 132 locks the external module 120, there is a gap between the second portion 122 of the external module 120 and the first wall 113, and between the second stopper 132 and the aforementioned stopper structure XW. In this way, even after the second stopper 132 locks the external module 120, the first portion 121 can continue to push the second stopper 132 toward the first wall 113.

[0130] Based on this, please refer to Figures 6 to 13 The second limiting member 132 is further provided with a fourth groove 1326 , one end of the fourth groove 1326 is connected to the third groove 1325 , the other end of the fourth groove 1326 is connected to the first groove 1323 , and the fourth groove 1326 is at the opposite end of the first groove 1323 .

[0131] After the second end 1312 of the first limiting member 131 is locked in the third groove 1325, while the first part 121 continues to push the second limiting member 132, the second end 1312 of the first limiting member 131 can enter the fourth groove 1326 from the third groove 1325, and then enter the first groove 1323 from the fourth groove 1326, so as to release the lock of the second end 1312 of the first limiting member 131 on the second limiting member 132.

[0132] like Figures 6 to 8As shown, the third groove 1325 may include a first sub-groove 13251 and a second sub-groove 13252 that are connected to each other, and there is a non-zero angle between the first sub-groove 13251 and the second sub-groove 13252. The end of the first sub-groove 13251 away from the second sub-groove 13252 is connected to the second groove 1324, and the end of the second sub-groove 13252 away from the first sub-groove 13251 is connected to the fourth groove 1326.

[0133] Based on this, the second end 1312 of the first limiting member 131 is locked in the third groove 1325, which can be achieved by locking the second end 1312 of the first limiting member 131 at the connection between the first sub-groove 13251 and the second sub-groove 13252. After the second end 1312 of the first limiting member 131 is locked in the third groove 1325, as the first portion 121 continues to push the second limiting member 132, the second end 1312 of the first limiting member 131 first moves from the connection between the first sub-groove 13251 and the second sub-groove 13252, along the second sub-groove 13252 to the fourth groove 1326, and then moves from the fourth groove 1326 to the first groove 1323.

[0134] The fourth groove 1326 is at the opposite end of the first groove 1323. After the second end 1312 of the first limiting member 131 moves to the fourth groove 1326, under the action of external force, the second end 1312 of the first limiting member 131 can enter the first groove 1323 from the fourth groove 1326 to release the lock of the second end 1312 of the first limiting member 131 on the second limiting member 132.

[0135] In the case where the circuit breaker accessory 100 is not provided with the elastic member 140 , the external force may be a force applied by an operator or other structural members to the external module 120 in a direction away from the first wall 113 .

[0136] In the case where the circuit breaker accessory 100 is provided with the elastic member 140 , the external force may be the elastic potential energy released by the elastic member 140 .

[0137] After the second end 1312 of the first limiting member 131 releases the lock on the second limiting member 132 , the lock between the hook portion 1321 and the hook groove 1221 can be released, thereby unlocking the external module 120 and the limiting assembly 130 .

[0138] For example, Figure 4 、 Figure 5 、 Figure 7 and Figure 8 For example, the second limiting member 132 is provided with a hook portion 1321, and the second portion 122 is provided with a hook groove 1221. Figure 3 As shown, the through slot 1171 may be provided with a first guide slope M1, as shown in FIG. Figure 7 and Figure 8As shown, the hook portion 1321 may be provided with a second guide slope M2.

[0139] After the second end 1312 of the first stopper 131 releases the lock on the second stopper 132, the external force drives the second elastic member 140 and the external module 120 to continue moving away from the first wall 113. During this movement, the second guide slope M2 contacts the first guide slope M1. Guided by the first and second guide slopes M1 and M2, the hook 1321 retracts from the through slot 1171 into the first mounting cavity 118, releasing the lock from the hook slot 1221. At this point, the stopper assembly 130 releases its lock on the external module 120, allowing the external module 120 to be removed from the base 110.

[0140] Regarding the method of providing the hook groove 1221 on the second limiting member 132 and the hook portion 1321 on the second portion 122, the hook portion 1321 can also be unlocked by providing a guiding slope on the through groove 1171 and the hook portion 1321, thereby unlocking the external module 120 from the limiting assembly 130. When the hook groove 1221 is provided on the second limiting member 132 and the hook portion 1321 is provided on the second portion 122, the direction of the guiding slope is the same as that of the second limiting member 132. Figure 3 The orientations shown are different and need to be adapted according to actual structural changes, which will not be elaborated here.

[0141] Based on the above embodiments of the slot structure, according to some embodiments of the present application, such as Figure 8 and Figure 14 As shown, a first step surface TM1 may be defined between the second groove 1324 and the third groove 1325 . The first step surface TM1 is used to prevent the second end 1312 of the first limiting member 131 from entering the second groove 1324 from the third groove 1325 .

[0142] The first step surface TM1 is equivalent to the transition connection surface between the bottom of the second groove 1324 and the bottom of the third groove 1325. The bottom of the second groove 1324 is the groove wall closest to the bottom plate 112 of the base 110. Similarly, the bottom of the third groove 1325 is the groove wall closest to the bottom plate 112.

[0143] The first stepped surface TM1 may be substantially perpendicular to the bottom wall of the bottom plate 112. The size of the first stepped surface TM1 may be set according to actual needs, and is not limited in this embodiment of the present application.

[0144] A first step surface TM1 is provided between the second groove 1324 and the third groove 1325, so that the bottoms of the second groove 1324 and the third groove 1325 are not coplanar. Furthermore, the second end 1312 of the first limiting member 131 can only move from the second groove 1324 to the third groove 1325, but cannot move from the third groove 1325 to the second groove 1324. This prevents the second end 1312 of the first limiting member 131 from entering the second groove 1324 from the third groove 1325 when the second limiting member 132 moves toward the first wall 113 relative to the first limiting member 131, thereby affecting the unlocking of the first and second locking members, and thus affecting the unlocking of the second locking member and the external module 120.

[0145] According to other embodiments of the present application, Figure 8 and Figure 14 As shown, a second step surface TM2 may be defined between the third groove 1325 and the fourth groove 1326 , and the second step surface TM2 is used to prevent the second end 1312 of the first limiting member 131 from entering the third groove 1325 from the fourth groove 1326 .

[0146] The second step surface TM2 is equivalent to the transition connection surface between the bottom of the third groove 1325 and the bottom of the fourth groove 1326. The bottom of the third groove 1325 is the groove wall of the third groove 1325 closest to the bottom plate 112 of the base 110. Similarly, the bottom of the fourth groove 1326 is the groove wall of the fourth groove 1326 closest to the bottom plate 112.

[0147] The second stepped surface TM2 may be substantially perpendicular to the bottom wall of the bottom plate 112. The size of the second stepped surface TM2 may be set according to actual needs and is not limited in this embodiment of the present application.

[0148] A second step surface TM2 is provided between the third groove 1325 and the fourth groove 1326, so that the bottoms of the third groove 1325 and the fourth groove 1326 are not coplanar. Furthermore, the second end 1312 of the first limiting member 131 can only move from the third groove 1325 to the fourth groove 1326, but cannot move from the fourth groove 1326 to the third groove 1325. This prevents the second end 1312 of the first limiting member 131 from entering the third groove 1325 from the fourth groove 1326 when the second limiting member 132 moves toward the first wall 113 relative to the first limiting member 131, thereby affecting the unlocking of the first and second locking members, and thus the unlocking of the second locking member and the external module 120.

[0149] According to some further embodiments of the present invention, Figure 7 As shown, a third step surface TM3 may be defined between the fourth groove 1326 and the first groove 1323 , and the third step surface TM3 is used to prevent the second end 1312 of the first limiting member 131 from entering the fourth groove 1326 from the first groove 1323 .

[0150] The third step surface TM3 is equivalent to the transition connection surface between the bottom of the first groove 1323 and the bottom of the fourth groove 1326. The bottom of the first groove 1323 is the groove wall closest to the bottom plate 112 of the base 110. Similarly, the bottom of the fourth groove 1326 is the groove wall closest to the bottom plate 112 of the base 110.

[0151] The third stepped surface TM3 may be substantially perpendicular to the bottom wall of the bottom plate 112. The size of the third stepped surface TM3 may be set according to actual needs and is not limited in this embodiment of the present application.

[0152] A third step surface TM3 is provided between the fourth groove 1326 and the first groove 1323, so that the bottom of the fourth groove 1326 and the bottom of the first groove 1323 are not coplanar. Furthermore, the second end 1312 of the first limiting member 131 can only move from the fourth groove 1326 to the first groove 1323, but cannot move from the first groove 1323 to the fourth groove 1326. This prevents the second end 1312 of the first limiting member 131 from entering the fourth groove 1326 from the first groove 1323 when the second limiting member 132 moves toward the first wall 113 relative to the first limiting member 131, thereby affecting the locking of the first locking member with the second locking member, and thus affecting the locking of the second locking member with the external module 120.

[0153] Based on the above description that the third groove 1325 includes the first sub-groove 13251 and the second sub-groove 13252, according to some other embodiments of the present application, such as Figure 8 and Figure 14 As shown, a fourth step surface TM4 may be defined between the first sub-groove 13251 and the second sub-groove 13252 . The fourth step surface TM4 is used to prevent the second end 1312 of the first limiting member 131 from entering the first sub-groove 13251 from the second sub-groove 13252 .

[0154] The structure of the fourth step surface TM4 is similar to that of the previous three step surfaces, and will not be described in detail here.

[0155] The setting of the fourth step surface TM4 makes the bottom of the first sub-groove 13251 and the bottom of the second sub-groove 13252 not on the same plane, and makes the second end 1312 of the first limit member 131 can only move from the first sub-groove 13251 to the second sub-groove 13252, but cannot move from the second sub-groove 13252 to the first sub-groove 13251.

[0156] In summary, the settings of the above-mentioned first step surface TM1, second step surface TM2, third step surface TM3 and fourth step surface TM4 can all ensure the certainty of the moving direction of the second end 1312 of the first limiting member 131, so that the second end 1312 of the first limiting member 131 can move according to a pre-designed route, thereby ensuring the reliable realization of the locking relationship and unlocking relationship between the first limiting member 131 and the second limiting member 132.

[0157] It should be noted that, in the present application, only the first step surface TM1, only the second step surface TM2, only the third step surface TM3, only the fourth step surface TM4 may be set, or at least two of the first step surface TM1, the second step surface TM2, the third step surface TM3 and the fourth step surface TM4 may be set, and the present application does not limit this.

[0158] like Figure 2 、 Figure 3 and Figure 15 As shown, the circuit breaker accessory 100 provided in this application may further include a cover 150. The cover 150 covers the side of the limit assembly 130 away from the bottom plate 112 of the base 110. The insertion opening 111 and the first wall 113 are located on opposite sides of the bottom plate 112 in the insertion direction. The insertion direction is the direction in which the external module 120 is inserted into the base 110. The cover 150 is provided with a first connecting structure LJ1, and the base 110 is provided with a second connecting structure LJ2. The first connecting structure LJ1 and the second connecting structure LJ2 cooperate.

[0159] The cover 150 is generally plate-shaped and can be sized according to the size of the first mounting cavity 118 .

[0160] The first connection structure LJ1 may be a connection column, and the second connection structure LJ2 may be a connection groove. Alternatively, the first connection structure LJ1 may be a connection groove, and the second connection structure LJ2 may be a connection column. Figure 3 and Figure 15 The first connection structure LJ1 shown is two connection columns provided on the cover 150 toward the bottom plate 112 of the base 110 , and the second connection structure LJ2 is two connection grooves provided on the bottom plate 112 , but does not constitute a limitation on the technical solution of the present application.

[0161] The connection grooves may be through grooves 1171 extending through the bottom plate 112, and the connection grooves may be provided on protruding posts on the bottom plate 112. After the connecting posts are inserted into the corresponding connection grooves, the cover 150 can be fixed to the bottom plate 112 by hot-melt bonding, thereby improving the connection reliability between the cover 150 and the base 110.

[0162] Among them, the aforementioned protrusion near the insertion opening 111 can not only be used to set the connection groove, but also be used to limit the range of movement of the second limiting member 132 in the direction away from the first wall 113 to prevent the second limiting member 132 from escaping from the first installation cavity 118.

[0163] In practice, the first connection structure LJ1 and the second connection structure LJ2 may also be a card strip and a card slot, etc., and the number of the first connection structure LJ1 and the second connection structure LJ2 may not be limited to two, which is not limited in this application.

[0164] The cover 150 covers the side of the stopper assembly 130 that is away from the bottom plate 112 of the base 110. The cover 150 is provided with a first connecting structure LJ1, and the base 110 is provided with a second connecting structure LJ2. The first connecting structure LJ1 and the second connecting structure LJ2 cooperate to connect the cover 150 to the base 110, and the stopper assembly 130 can be fixed to the first mounting cavity 118 through the cover 150. This prevents the stopper assembly 130 from easily falling out of the first mounting cavity 118 during use.

[0165] According to some embodiments of the present application, the circuit breaker accessory 100 may further include an indicator light (not shown in the figures), which is installed in the first installation cavity 118 near the insertion opening 111 .

[0166] like Figure 3 and Figure 15 As shown, the cover 150 is provided with a mounting position 151 near the insertion opening 111, and the indicator light can be mounted on the mounting position 151. The mounting position 151 can be formed between two plates of the cover 150.

[0167] The indicator light can indicate whether the external module 120 is connected. For example, the indicator light can be electrically connected to the controller via a wire. When the external module 120 is connected to the controller, the controller can control the indicator light to indicate the connected state. Furthermore, when the external module 120 is disconnected from the controller, the controller can also control the indicator light to indicate the disconnected state.

[0168] The number of the indicator lights may be one or more. The indicator lights may be on or off to indicate the on and off status of the external module 120. The indicator lights may also be different colors to indicate the on and off status of the external module 120. This application does not limit this.

[0169] The circuit breaker accessory 100 of the present application is provided with an indicator light, which can indicate whether the external module 120 is connected or not. Furthermore, since the insertion opening 111 is the side of the base 110 that is convenient for the operator to operate and observe, the indicator light is installed in the first installation cavity 118 near the insertion opening 111. This allows the operator to observe the status of the indicator light from the insertion opening 111 side, so that the operator can determine the connection status of the external module 120 based on the status of the indicator light.

Claims

1. A circuit breaker accessory, characterized in that: include: a base, comprising an insertion opening, the insertion opening being in communication with an interior space of the base; an external module capable of being inserted into the base through the insertion opening; The base is arranged inside the cover of the circuit breaker body, and the external module is inserted into the base from the insertion opening and can be electrically connected to the controller inside the circuit breaker body.

2. The circuit breaker accessory according to claim 1, characterized in that A partition is provided in the base, and the partition divides the internal space of the base into a first installation cavity and a second installation cavity; The circuit breaker accessory further includes a limiting component, and the limiting component is located in the first installation cavity; The external module includes a first part and a second part connected to each other, the first part is opposite to the first installation cavity, and the second part is opposite to the second installation cavity; After the external module is inserted into the base through the insertion opening, the limiting assembly can lock the external module to prevent the external module from escaping from the insertion opening.

3. The circuit breaker accessory according to claim 2, characterized in that: The limiting assembly includes a first limiting member and a second limiting member; The first end of the first limiting member is connected to the base, the second end of the first limiting member cooperates with the second limiting member, and the first limiting member can lock the second limiting member so that the position of the second limiting member relative to the first mounting cavity remains fixed; The second limiting member is provided with a hook portion on a side facing the second portion, and the second portion is provided with a hook groove on a side facing the second limiting member, or the second limiting member is provided with a hook groove on a side facing the second portion, and the second portion is provided with a hook portion on a side facing the second limiting member; wherein the hook portion is adapted to fit into the hook groove; When the first limiting member locks the second limiting member, the hook portion is locked with the hook groove to lock the external module.

4. The circuit breaker accessory according to claim 3, characterized in that: The second position-limiting member is provided with a push portion, and when the external module is inserted into the base through the insertion opening, the first portion can push the push portion, so that the second position-limiting member moves within the first installation cavity; The second limiting member is provided with a first groove, a second groove, and a third groove. The first groove and the third groove are both connected to the second groove. The first groove is closer to the first end of the first limiting member than the second groove. The third groove is closer to the insertion opening than the second groove. The bottom of the first groove is smoothly transitioned to the bottom of the second groove. During the process of the first part pushing the pushing portion, the second end of the first limiting member can move from the first slot to the second slot, and then move from the second slot to the third slot, and be locked in the third slot.

5. The circuit breaker accessory according to claim 4, characterized in that: Also included is an elastic member; The base includes a first wall opposite to the insertion opening, the first end of the elastic member abuts against the first wall, and the second end of the elastic member abuts against the second limiting member; The first part pushes against the second limiting member, so that the elastic member is compressed and stores energy during the process of the second limiting member moving toward the first wall in the first installation cavity; when the first part cancels the pushing force on the pushing part and the elastic member releases energy, the second end of the elastic member can push against the second limiting member, so that the second end of the first limiting member is locked in the third groove.

6. The circuit breaker accessory according to claim 4, characterized in that The second limiting member is further provided with a fourth groove, one end of the fourth groove is communicated with the third groove, the other end of the fourth groove is communicated with the first groove, and the fourth groove is opposite to the first groove; After the second end of the first limiting member is locked in the third groove, while the first part continues to push the second limiting member, the second end of the first limiting member can enter the fourth groove from the third groove, and then enter the first groove from the fourth groove, so as to release the lock of the second limiting member by the second end of the first limiting member.

7. The circuit breaker accessory according to claim 6, characterized in that A first step surface is provided between the second groove and the third groove, and the first step surface is used to prevent the second end of the first limiting member from entering the second groove from the third groove; and / or, A second step surface is provided between the third groove and the fourth groove, and the second step surface is used to prevent the second end of the first limiting member from entering the third groove from the fourth groove; and / or, A third step surface is defined between the fourth slot and the first slot, and the third step surface is used to prevent the second end of the first limiting member from entering the fourth slot from the first slot.

8. The circuit breaker accessory according to any one of claims 2 to 7, characterized in that: The device further includes a cover body, the cover body covering a side of the limit assembly away from the bottom plate of the base, the insertion opening and the first wall being located on opposite sides of the bottom plate in an insertion direction, the insertion direction being a direction in which the external module is inserted into the base; The cover is provided with a first connecting structure, and the base is provided with a second connecting structure, and the first connecting structure matches the second connecting structure.

9. The circuit breaker accessory according to claim 8, characterized in that An indicator light is also included, and the indicator light is installed in the first installation cavity at a position close to the insertion opening.

10. An intelligent circuit breaker, characterized in that: comprising a circuit breaker body and the circuit breaker accessory according to any one of claims 1 to 9; The circuit breaker body includes a cover, a body and a controller. The cover and the body cover each other. The cover has a storage space. The circuit breaker accessories are located in the storage space and connected to the cover. The circuit breaker accessories are also electrically connected to the controller.

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