Quick wiring type circuit breaker

Abstract

The utility model discloses a rapid wiring type circuit breaker, and relates to the technical field of circuit breakers, and the rapid wiring type circuit breaker comprises a housing, a sealing cover, and a wiring terminal. The shell comprises an installation cavity, a through hole is formed in the side wall of the shell, and the installation cavity is communicated with the through hole. The sealing cover is connected to the shell, the sealing cover can seal at least part of the through hole, and the sealing cover and the unsealed part of the through hole can form a wiring hole in an enclosing mode. And the wiring terminal is arranged in the mounting cavity and comprises a wiring port, and the wiring port is opposite to and communicated with the wiring hole. According to the quick wiring type circuit breaker provided by the invention, the use safety of the circuit breaker can be improved while quick wiring is realized.

Description

Technical Field

[0001] The present application relates to the technical field of circuit breakers, and particularly relates to a quick-wiring circuit breaker. Background Art

[0002] Both the incoming line end and the outgoing line end of the circuit breaker are provided with terminal blocks for connecting wires. In the prior art, in order to improve the wiring efficiency, quick terminal blocks are used instead of traditional screw terminal blocks.

[0003] However, due to the large structural difference between the quick terminal block and the screw terminal block, the adaptability between the quick terminal block and the original circuit breaker housing is poor, resulting in potential safety hazards for the circuit breaker.

[0004] Therefore, there is an urgent need to propose a quick-wiring circuit breaker to solve the problems existing in the prior art. Utility Model Content

[0005] The purpose of the present application is to provide a quick-wiring circuit breaker, which can improve the use safety of the circuit breaker while realizing quick wiring.

[0006] In a first aspect, an embodiment of the present application provides a quick-wiring circuit breaker, including a housing, a cover, and a terminal block. The housing includes an installation cavity, and through holes are provided on the side wall of the housing, and the installation cavity is communicated with the through holes. The cover is connected to the housing, the cover can close at least part of the through holes, and the cover and the unclosed part of the through holes can enclose a wiring hole. The terminal block is arranged in the installation cavity, and the terminal block includes a wiring port, and the wiring port is opposite to and communicated with the wiring hole.

[0007] Based on the above embodiment of the present application, by connecting a cover to the housing and using the cover to close at least part of the through holes, the risk of electric shock caused by accidentally touching the terminal block or other components at the through holes can be reduced without affecting the wiring of the terminal block, effectively improving the use safety of the circuit breaker.

[0008] In some examples, the cover includes a main cover part and a connecting part. The main cover part correspondingly closes at least part of the through holes. The connecting part is arranged on the side of the main cover part facing the through holes. The connecting part is connected to the through holes, and / or the connecting part is connected to the side wall of the housing close to the through holes.

[0009] Based on the above embodiment of the present application, the cover is fixedly connected to the housing through the connecting part, which can improve the assembly stability between the cover and the housing, so that the cover can be more stably covered on the through holes, thereby reducing the risk of electric shock caused by the cover falling off, which is beneficial to improving the use safety of the circuit breaker.

[0010] In some examples, the connecting portion includes a first buckle and a second buckle. The first buckle and the second buckle are spaced apart, and the first buckle and the second buckle can extend into the through hole and be clamped to the through hole.

[0011] Based on the above embodiments of the present application, setting the connecting portion as the first buckle and the second buckle has the characteristics of simple structure and convenient manufacturing and forming. At the same time, the clamping connection method between the first buckle and the second buckle and the housing is simple in operation and stable in connection, which is beneficial to the stable installation of the cover on the housing to accurately close the corresponding through hole, so that the original circuit breaker housing has corresponding protection capabilities while adapting to the quick wiring terminal, reducing the risk of electrical accidents.

[0012] In some examples, the clamping direction of the first buckle is opposite to the clamping direction of the second buckle.

[0013] Based on the above embodiments of the present application, the first buckle and the second buckle are respectively clamped to the through hole from opposite directions. Compared with other matching forms, such as the first buckle and the second buckle being clamped to the adjacent sides of the through hole, this setting form can achieve a more stable connection and reduce the possibility of loosening or falling off.

[0014] In some examples, a wiring hole is formed by enclosing the first side wall of the cover and a part of the through hole that is not closed. A guiding portion is provided on the first side wall, and the guiding direction of the guiding portion faces the wiring hole.

[0015] Based on the above embodiments of the present application, the setting of the cover can not only close at least part of the through hole, but also directly enclose with the remaining part of the through hole that is not closed to form a wiring hole, effectively simplifying the structure of the circuit breaker and improving the protection ability while facilitating wiring.

[0016] In some examples, at least one through hole is provided on the cover, and the through hole communicates with the installation cavity.

[0017] Based on the above embodiments of the present application, the through hole is opened on the main cover portion of the cover, and the communication between the through hole and the installation cavity can play a role in balancing the internal and external air pressures of the circuit breaker.

[0018] In some examples, at least one first guiding structure is provided on the side of the cover facing the through hole, and / or at least one second guiding structure is provided on the hole wall of the through hole close to the cover. The guiding directions of the first guiding structure and the second guiding structure are the same.

[0019] Based on the above embodiments of the present application, the setting of the first guiding structure and the second guiding structure is beneficial to the accurate connection of the cover to the through hole, thereby improving the accuracy of the cover closing the through hole and avoiding affecting the safety of other components in the installation cavity or even inside the circuit breaker due to unstable assembly or gaps between the cover and the through hole.

[0020] In some examples, the housing includes a base and a cover. After the base and the cover are connected, an installation cavity and a through hole are formed. A first limiting groove is provided on the base, and a second limiting groove is provided on the cover. The terminal is correspondingly installed in the first limiting groove and the second limiting groove.

[0021] Based on the above embodiments of the present application, the first limiting groove and the second limiting groove located in the installation cavity can further limit the position of the terminal in the installation cavity, avoiding the situation that the terminal is loose or falls off in the installation cavity, thereby improving the use stability and safety of the circuit breaker.

[0022] In some examples, the housing includes at least two installation cavities and at least two through holes. The at least two through holes are in one-to-one correspondence and communication with the at least two installation cavities. The at least two installation cavities correspondingly install at least two terminals, and the at least two through holes correspondingly connect at least two covers.

[0023] Based on the above embodiments of the present application, in a single-phase circuit breaker, the housing usually includes two installation cavities and corresponding two through holes. A separate terminal is installed in each installation cavity, and a separate cover is connected to each through hole. Each cover plays a protective role on the corresponding through hole and correspondingly forms a wiring hole, so as to provide reliable protection for the two wiring positions of the single-phase circuit breaker, further improving the use safety of the circuit breaker.

[0024] In some examples, the terminal includes a wiring board and a wire pressing structure. The wiring board and the wire pressing structure are arranged as an integral structure. The wire pressing structure and the wiring board enclose a wiring opening, and the wiring opening is adapted to the wiring hole.

[0025] Based on the above embodiments of the present application, the terminal formed by integrally molding the wiring board and the wire pressing structure has the characteristics of simple structure, rapid wiring, small occupied space, and not easily being accidentally touched by the terminal from the through hole of the housing. Such a terminal can improve the wiring efficiency of the circuit breaker while adapting to the housing of the original circuit breaker, which is beneficial to saving production costs and improving the use safety of the circuit breaker, and reducing the possibility of electrical accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, so they should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 It is a schematic diagram of the overall structure of the circuit breaker provided by the embodiment of the present application.

[0028] Figure 2 Schematic diagram of the separation structure of the circuit breaker housing and the cover provided by the embodiment of the present application.

[0029] Figure 3 Schematic diagram of the open state of the circuit breaker housing provided by the embodiment of the present application.

[0030] Figure 4 Schematic diagram of the cover provided by the embodiment of the present application.

[0031] Figure 5 Schematic diagram of the terminal and the cover installed on the base of the housing provided by the embodiment of the present application.

[0032] Figure 6 Schematic diagram of the mating structure of the terminal and the cover body in the housing provided by the embodiment of the present application.

[0033] Figure 7 Schematic diagram of the mating structure of the terminal and the base in the housing provided by the embodiment of the present application.

[0034] Explanation of reference numerals:

[0035] 1. Housing; 11. Installation cavity; 12. Through hole; 13. Wiring hole; 14. Second guiding structure; 15. Base; 151. First limiting groove; 16. Cover body; 161. Second limiting groove; 2. Cover; 21. Main cover part; 22. Connecting part; 221. First buckle; 222. Second buckle; 23. First side wall; 231. Guiding part; 24. Through hole; 25. First guiding structure; 3. Terminal; 31. Wiring port; 32. Wiring board; 33. Wiring pressing structure. Detailed implementation manners

[0036] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Usually, the components of the embodiments of the present application described and illustrated herein can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the present application claimed, but merely represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0038] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0039] In the description of the present application, it should be noted that the orientation or positional relationship indicated by terms such as "inner" and "outer" is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. This is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, terms such as "first" and "second" are only used for differential description and cannot be understood as indicating or implying relative importance.

[0040] In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0041] The terminal used to connect external wires in a traditional circuit breaker generally adopts a screw-type terminal. When wiring, the wire needs to be inserted through the wiring hole of the circuit breaker housing, and the wire is pressed by tightening the screw, so the wiring efficiency is relatively low. The prior art uses a quick-wiring terminal to replace the screw-type terminal, and stable wiring can be achieved through a simple wiring operation.

[0042] However, the existing quick-wiring terminals are quite different in structure from the original screw-type terminals. When the quick-wiring terminals are assembled in the original circuit breaker housing, there are some structural mismatches, resulting in potential safety hazards for the circuit breaker. For example, the wiring hole on the original circuit breaker housing is relatively large, while the wiring port of the quick-wiring terminal is relatively small. The relatively large wiring hole is prone to accidentally touching the terminal and causing electric shock.

[0043] Based on this, the embodiments of the present application provide a quick-wiring circuit breaker, which can improve the use safety of the circuit breaker while achieving quick wiring.

[0044] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings.

[0045] Please refer to Figures 1 to 3, this embodiment provides a quick-wiring circuit breaker, which includes a housing 1, a cover 2, and a terminal 3. The housing 1 includes an installation cavity 11, and a through hole 12 is provided on the side wall of the housing 1. The installation cavity 11 communicates with the through hole 12. The cover 2 is connected to the housing 1. The cover 2 can close at least part of the through hole 12, and the cover 2 can enclose a wiring hole 13 with the unclosed part of the through hole 12. The terminal 3 is arranged in the installation cavity 11. The terminal 3 includes a wiring port 31, and the wiring port 31 faces and communicates with the wiring hole 13.

[0046] The housing 1 serves as the load-bearing main body of the circuit breaker. The installation cavity 11 thereon is used to install the terminal 3 and other components, such as an operating mechanism and a contact mechanism, etc. The through hole 12 provided on the side wall of the housing 1 communicates with the installation cavity 11. External wires can be inserted through the through hole 12 and electrically connected to the terminal 3 to connect the circuit breaker to the main circuit.

[0047] In this embodiment, the housing 1 is based on the housing 1 of a traditional circuit breaker provided with screw terminals 3, and the terminal 3 adopted is a quick-wiring terminal 3. This enables this quick-wiring circuit breaker to have the function of quick wiring while using the production manufacturing process, production equipment, and detection methods of traditional circuit breakers, which is conducive to saving production and manufacturing costs.

[0048] Refer to Figure 1 , the cover 2 is provided to close part of the through hole 12 on the housing 1, so that only the part communicating with the wiring port 31 of the terminal 3 remains at the through hole 12 after the circuit breaker is assembled. This can prevent personnel from accidentally touching the terminal 3 or other components in the installation cavity 11 at the through hole 12, reducing the risk of electric shock accidents. At the same time, it can also reduce the influence or damage of the external environment on the components in the installation cavity 11, such as dust or water.

[0049] Based on the above embodiments of the present application, by connecting the cover 2 to the housing 1 and using the cover 2 to close at least part of the through hole 12, the risk of electric shock caused by accidentally touching the terminal 3 or other components at the through hole 12 can be reduced without affecting the wiring of the terminal 3, effectively improving the use safety of the circuit breaker.

[0050] Refer to Figure 4 and Figure 5 , in some examples, the cover 2 includes a main cover part 21 and a connecting part 22. The main cover part 21 correspondingly closes at least part of the through hole 12. The connecting part 22 is arranged on the side of the main cover part 21 facing the through hole 12. The connecting part 22 is connected to the through hole 12. In other examples, the connecting part 22 is connected to the side wall of the housing 1 close to the through hole 12.

[0051] The cover 2 closes at least a part of the through hole 12 through the main cover part 21. In this embodiment, the through hole 12 is set as a rectangular hole, and the main cover part 21 is correspondingly set as a rectangular cover. The width of the main cover part 21 can be equal to or greater than the width of the through hole 12, and the length of the main cover part 21 is less than the length of the through hole 12 to form a wiring hole 13.

[0052] The cover 2 is connected to the housing 1 through the connecting part 22. Among them, the connecting part 22 can be directly connected to the through hole 12. For example, the connecting part 22 is snap-connected to the hole wall of the through hole 12. The connecting part 22 can also be connected to other positions of the housing 1. For example, the connecting part 22 is snap-connected to the side wall of the housing 1 close to the through hole 12. Of course, the connecting part 22 can also be connected to the through hole 12 and the side wall of the housing 1 at the same time, which can further enhance the connection stability of the cover 2.

[0053] The connection between the connecting part 22 and the housing 1 can adopt snap connection, bonding or magnetic attraction connection and other methods.

[0054] Based on the above embodiments of the present application, the cover 2 is fixedly connected to the housing 1 through the connecting part 22, which can improve the assembly stability between the cover 2 and the housing 1, so that the cover 2 can be more stably covered on the through hole 12, thereby reducing the risk of electric shock caused by the detachment of the cover 2, which is beneficial to improving the use safety of the circuit breaker.

[0055] Refer to Figure 4 and Figure 5 In some examples, the connecting part 22 includes a first buckle 221 and a second buckle 222. The first buckle 221 and the second buckle 222 are arranged at intervals, and the first buckle 221 and the second buckle 222 can extend into the through hole 12 and be snap-connected to the through hole 12.

[0056] Specifically, the first buckle 221 includes a column body and a snap connection boss. The column body is connected to the main cover part 21, and the snap connection boss is arranged at the end of the column body far from the main cover part 21. The first buckle 221 can extend into the through hole 12 through the column body and be snap-connected to the inner wall of the installation cavity 11 on the periphery of the through hole 12 through the snap connection boss, so as to prevent the cover 2 from detaching from the through hole 12.

[0057] The structure of the second buckle 222 is the same as that of the first buckle 221, and the connection form of the second buckle 222 and the housing 1 is the same as that of the first buckle 221.

[0058] Refer to Figure 4, the first buckle 221 and the second buckle 222 are arranged at intervals, so that the first buckle 221 and the second buckle 222 can be respectively clamped to different sides of the through hole 12. With the cooperation of clamping connections in different directions, the cover 2 and the through hole 12 can be relatively fixed, further improving the assembly stability between the cover 2 and the housing 1, thereby reducing the risk of electrical accidents caused by the detachment of the cover 2 and improving the use safety of the circuit breaker.

[0059] Based on the above embodiments of the present application, the connecting portion 22 is set as the first buckle 221 and the second buckle 222, which has the characteristics of simple structure and convenient manufacturing and forming. At the same time, the clamping connection method between the first buckle 221 and the second buckle 222 and the housing 1 is simple in operation and stable in connection, which is beneficial to the stable installation of the cover 2 on the housing 1 to accurately close the corresponding through hole 12, so that the original circuit breaker housing 1 has corresponding protection ability while adapting to the quick wiring terminal 3, reducing the risk of electrical accidents.

[0060] In another example, the connecting portion 22 can also be set as spaced first clamping posts and second clamping posts. A first clamping groove is formed on the first clamping post, and a second clamping groove is formed on the second clamping post. First clamping protrusions and second clamping protrusions are arranged at intervals on the hole wall of the through hole 12. The connecting portion 22 extends into the through hole 12 through the first clamping post and the second clamping post, the first clamping groove is clamped with the first clamping protrusion, and the second clamping groove is clamped with the second clamping protrusion, which can also achieve the functions of the foregoing embodiments and has the same technical effects, and will not be elaborated here.

[0061] Refer to Figure 4 , in some examples, the clamping direction of the first buckle 221 is opposite to the clamping direction of the second buckle 222.

[0062] Based on the above embodiments of the present application, the first buckle 221 and the second buckle 222 are respectively clamped to the through hole 12 from opposite directions. Compared with other matching forms, such as the first buckle 221 and the second buckle 222 being clamped to adjacent sides of the through hole 12, this setting form can achieve a more stable connection and reduce the possibility of loosening or detachment.

[0063] In an alternative embodiment, the connecting portion 22 can also include a third buckle. The first buckle 221, the second buckle 222 and the third buckle are arranged at intervals on the periphery of the cover 2 and can respectively correspond to clamp three directions of the through hole 12, which can further improve the connection stability and ensure that the cover 2 will not easily fall off and affect the use safety of the circuit breaker.

[0064] Refer to Figure 5, in some examples, the first side wall 23 of the cover 2 and the unclosed part of the through hole 12 enclose a wiring hole 13, and a guiding portion 231 is provided on the first side wall 23, and the guiding direction of the guiding portion 231 faces the wiring hole 13.

[0065] The first side wall 23 of the cover 2 is the side wall of the cover 2 close to the wiring terminal 3 after the cover 2 is connected to the through hole 12. The cover 2 can close at least part of the through hole 12, and the hole wall of the unclosed part of the through hole 12 and the first side wall 23 of the cover 2 enclose a wiring hole 13 to correspond to the wiring port 31 of the wiring terminal 3. In this way, the process of separately providing a wiring hole 13 corresponding to the wiring port 31 on the housing 1 can be omitted, that is, the replaced quick wiring terminal 3 can be adapted without changing the structure and shape of the original circuit breaker housing 1, reducing the cost of replacing the production molds and equipment of the circuit breaker housing 1.

[0066] Furthermore, the setting of the guiding portion 231 can provide a guiding function for the wiring hole 13 to facilitate the realization of quick wiring more smoothly. Specifically, a profiling structure is provided on the first side wall 23, and the shape of the profiling structure matches the shape of the periphery of the wiring port 31, and both have a protruding portion in the direction away from the installation cavity 11. The guiding portion 231 is provided on the profiling structure, and the guiding direction of the guiding portion 231 extends based on the vertex of the protruding portion of the profiling structure towards the direction where the wiring hole 13 is located, that is, the guiding direction of the guiding portion 231 faces the wiring hole 13.

[0067] Based on the above embodiments of the present application, the setting of the cover 2 can not only close at least part of the through hole 12, but also directly enclose a wiring hole 13 with the remaining unclosed part of the through hole 12, effectively simplifying the structure of the circuit breaker and improving the protection ability while facilitating wiring.

[0068] Refer to Figure 4 , in some examples, at least one through hole 24 is provided on the cover 2, and the through hole 24 communicates with the installation cavity 11.

[0069] Based on the above embodiments of the present application, the through hole 24 is opened in the main cover portion 21 of the cover 2, and the communication between the through hole 24 and the installation cavity 11 can play a role in balancing the internal and external air pressures of the circuit breaker.

[0070] Refer to Figure 2 and Figure 4 , in some examples, at least one first guiding structure 25 is provided on the side of the cover 2 facing the through hole 12, and in some other examples, at least one second guiding structure 14 is provided on the hole wall of the through hole 12 close to the cover 2, and the guiding directions of the first guiding structure 25 and the second guiding structure 14 are the same.

[0071] The first guiding structure 25 is a guiding boss provided on the main cover part 21. The guiding boss is arranged on the circumferential side of the main cover part 21. The guiding boss has a guiding surface, and the guiding direction of the guiding surface is from the side of the main cover part 21 away from the connecting part 22 to the side close to the connecting part 22, so that the connecting part 22 can accurately enter the through hole 12 and thus be accurately connected to the through hole 12.

[0072] The second guiding structure 14 is arranged on the hole wall of the through hole 12 on the side away from the installation cavity 11. The second guiding structure 14 is a guiding surface provided on the hole wall of the through hole 12, and the guiding direction of this guiding surface is from the outside of the through hole 12 to the inside of the through hole 12. That is, the guiding direction of the guiding surface of the second guiding structure 14 is the same as the guiding direction of the guiding surface of the first guiding structure 25, which is beneficial for the connecting part 22 on the cover 2 to accurately enter the through hole 12.

[0073] Among them, only one of the first guiding structure 25 and the second guiding structure 14 can be provided, or both can be provided simultaneously. With the common cooperation of the first guiding structure 25 and the second guiding structure 14, the accuracy of the cover 2 closing the through hole 12 can be further improved.

[0074] Based on the above embodiments of the present application, the settings of the first guiding structure 25 and the second guiding structure 14 are beneficial for the cover 2 to be accurately connected to the through hole 12, thereby improving the accuracy of the cover 2 closing the through hole 12 and avoiding affecting the safety of other components in the installation cavity 11 or even in the circuit breaker due to unstable assembly or gaps between the cover 2 and the through hole 12.

[0075] Referring to Figure 6 and Figure 7 , in some examples, the housing 1 includes a base 15 and a cover body 16. After the base 15 and the cover body 16 are connected, an installation cavity 11 and a through hole 12 are formed. A first limiting groove 151 is provided on the base 15, and a second limiting groove 161 is provided on the cover body 16. The terminal 3 is correspondingly installed in the first limiting groove 151 and the second limiting groove 161.

[0076] In the circuit breaker, the base 15 and the cover body 16 are usually connected by a way of mutual buckling and fastening with screws. The terminal 3 is installed in the installation cavity 11 formed after the base 15 and the cover body 16 are connected. The terminal 3 can be clamped in the installation cavity 11 by the base 15 and the cover body 16, reducing the possibility of the terminal 3 loosening in the installation cavity 11.

[0077] In addition, by providing a first limiting groove 151 on the base 15, the first limiting groove 151 is located on the base 15 at a position corresponding to the installation cavity 11, and the wiring terminal 3 in the installation cavity 11 can play a further limiting role through the first limiting groove 151. Similarly for the second limiting groove 161, the second limiting groove 161 is located on the cover body 16 at a position corresponding to the installation cavity 11, and the cooperation between the second limiting groove 161 and the first limiting groove 151 can enable the wiring terminal 3 to be more stably installed in the installation cavity 11.

[0078] Based on the above embodiments of the present application, the first limiting groove 151 and the second limiting groove 161 located in the installation cavity 11 can further limit the position of the wiring terminal 3 in the installation cavity 11, avoiding the situation that the wiring terminal 3 loosens or falls off in the installation cavity 11, thereby improving the use stability and safety of the circuit breaker.

[0079] Refer to Figure 6 and Figure 7 , in some examples, the housing 1 includes at least two installation cavities 11 and at least two through holes 12, the at least two through holes 12 are in one-to-one correspondence and communication with the at least two installation cavities 11, the at least two installation cavities 11 are correspondingly installed with at least two wiring terminals 3, and the at least two through holes 12 are correspondingly connected to at least two covers 2.

[0080] Based on the above embodiments of the present application, in a single-phase circuit breaker, the housing 1 generally includes two installation cavities 11 and corresponding two through holes 12. A separate wiring terminal 3 is installed in each installation cavity 11, a separate cover 2 is connected to each through hole 12, and each cover 2 plays a protective role on the corresponding through hole 12 and correspondingly forms a wiring hole 13, so as to play a reliable protective role for the two wiring positions of the single-phase circuit breaker, further improving the use safety of the circuit breaker.

[0081] Refer to Figure 6 , in some examples, the wiring terminal 3 includes a wiring board 32 and a wire pressing structure 33. The wiring board 32 and the wire pressing structure 33 are provided as an integral structure. The wire pressing structure 33 and the wiring board 32 enclose a wiring port 31, and the wiring port 31 is adapted to the wiring hole 13.

[0082] Based on the above embodiments of the present application, the wiring terminal 3 integrally formed by the wiring board 32 and the wire pressing structure 33 has the characteristics of simple structure, can achieve rapid wiring, small occupied space, and is not easily mis-touched by the wiring terminal 3 from the through hole 12 of the housing 1. Such a wiring terminal 3 can improve the wiring efficiency of the circuit breaker while adapting to the original housing 1 of the circuit breaker, which is beneficial to saving production costs, and is beneficial to improving the use safety of the circuit breaker and reducing the possibility of electrical accidents.

[0083] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A quick-wiring circuit breaker, characterized in that, Comprising: A housing including an installation cavity, wherein through holes are provided on the side wall of the housing, and the installation cavity communicates with the through holes; A cover connected to the housing, the cover being capable of closing at least a part of the through holes, and the cover being capable of enclosing a wiring hole with the unclosed part of the through holes; A wiring terminal disposed in the installation cavity, the wiring terminal including a wiring port which faces and communicates with the wiring hole.

2. The quick-wiring circuit breaker according to claim 1, wherein The cover includes a main cover portion and a connecting portion. The main cover portion correspondingly closes at least a part of the through holes. The connecting portion is disposed on the side of the main cover portion facing the through holes. The connecting portion is connected to the through holes, and / or the connecting portion is connected to the side wall of the housing near the through holes.

3. The quick-wiring circuit breaker according to claim 2, characterized in that, The connecting portion includes a first buckle and a second buckle. The first buckle and the second buckle are spaced apart. The first buckle and the second buckle can extend into the through holes and be clamped to the through holes.

4. The quick-connect circuit breaker according to claim 3, wherein The clamping direction of the first buckle is opposite to that of the second buckle.

5. The quick-wiring circuit breaker according to any one of claims 1-4, characterized in that, A first side wall of the cover and the unclosed part of the through holes enclose a wiring hole, and a guiding portion is provided on the first side wall, and the guiding direction of the guiding portion faces the wiring hole.

6. The quick-connection circuit breaker according to any one of claims 1-4, characterized in that At least one through hole is provided on the cover, and the through hole communicates with the installation cavity.

7. The quick-wiring circuit breaker according to any one of claims 1-4, characterized in that At least one first guiding structure is provided on the side of the cover facing the through holes, and / or at least one second guiding structure is provided on the hole wall of the through hole near the cover. The guiding directions of the first guiding structure and the second guiding structure are the same.

8. The quick-wiring circuit breaker according to any one of claims 1 to 4, characterized in that, The housing includes a base and a cover body. After the base and the cover body are connected, the installation cavity and the through holes are formed. A first limiting groove is provided on the base, and a second limiting groove is provided on the cover body. The wiring terminal is correspondingly installed in the first limiting groove and the second limiting groove.

9. The quick-wiring circuit breaker according to any one of claims 1-4, characterized in that The housing includes at least two installation cavities and at least two through holes. The at least two through holes are in one-to-one correspondence and communication with the at least two installation cavities. The at least two installation cavities correspondingly install at least two of the wiring terminals, and the at least two through holes correspondingly connect at least two of the covers.

10. The quick-wiring circuit breaker according to any one of claims 1-4, characterized in that, The wiring terminal includes a wiring board and a wire pressing structure. The wiring board and the wire pressing structure are arranged as an integral structure. The wire pressing structure and the wiring board enclose the wiring port, and the wiring port is adapted to the wiring hole.

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