A circuit breaker device

Abstract

The present application relates to the technical field of electrical connection devices, and in particular to a circuit breaker device. The circuit breaker device provided in the present application includes a circuit breaker body and accessories. The circuit breaker body includes a first shell and a support. Along the first direction, the first shell includes a first part and a second part connected to each other. Along the second direction, the width of the first part is smaller than the width of the second part, and a step area is formed between the first part and the second part. The support is rotatably connected in the first shell. The accessories are arranged in the step area, and along the second direction, the accessories are located on one side of the support, and cooperate with the support to realize the feedback or control of the state of the circuit breaker body by the accessories. Based on the circuit breaker device provided in the present application, by utilizing the structural characteristics of the circuit breaker body itself, the accessories are arranged in the step area, which helps to set more circuit breaker devices in the distribution box and increase the number of distribution circuits in the distribution box.

Description

Technical Field

[0001] The present application relates to the technical field of electrical connection devices, and in particular to a circuit breaker device. Background Art

[0002] Miniature circuit breakers are devices used to protect low-voltage electrical systems from overloads and short-circuit faults. They are widely used in residential, commercial buildings and small industrial facilities to ensure safe and reliable operation of circuits.

[0003] The main purpose of adding accessories to miniature circuit breakers is to enhance their functions and improve the safety, reliability and operational convenience of the system. These accessories can provide additional protection, control and indication functions, making miniature circuit breakers more suitable for various complex application scenarios.

[0004] In the prior art, the accessories are usually installed on both sides of the width direction of the miniature circuit breaker through their own second operating handles.

[0005] The circuit breaker device formed by the miniature circuit breaker and accessories is usually installed in a distribution box. Multiple miniature circuit breaker devices are installed in one distribution box, and the miniature circuit breaker devices are arranged along the width direction of the miniature circuit breaker in the distribution box. In this way, along the width direction of the miniature circuit breaker, the accessories will undoubtedly occupy the effective installation space in the distribution box, reduce the number of miniature circuit breakers in the distribution box, thereby reducing the number of distribution circuits in the distribution box and increasing the user's cost. Summary of the invention

[0006] The present application provides a circuit breaker device, which is beneficial to saving the effective installation space of the distribution box, increasing the distribution circuit in the distribution box, and reducing the user's use cost.

[0007] The technical solutions of this application are as follows:

[0008] The circuit breaker device provided in the present application includes a circuit breaker body and accessories. The circuit breaker body includes a first housing and a support member. Along the first direction, the first housing includes a first part and a second part connected to each other. Along the second direction, the width of the first part is smaller than the width of the second part, and a step area is formed between the first part and the second part. The support member is rotatably connected in the first housing and is located in the first part, and the rotation axis of the support member is parallel to the third direction. The first direction, the second direction and the third direction are perpendicular to each other.

[0009] The accessory is arranged in the step area, and along the second direction, the accessory is located on one side of the support member, and cooperates with the support member to realize feedback or control of the state of the circuit breaker body by the accessory.

[0010] Based on the circuit breaker device provided by the present application, by utilizing the structural characteristics of the circuit breaker body itself, the accessories are arranged in the step area, which is helpful to arrange more circuit breaker devices in the distribution box and increase the number of distribution circuits in the distribution box. In addition, the support member of the circuit breaker body is used to act as a linkage structure between the circuit breaker body and the accessories, so that the connection between the accessories and the circuit breaker body can be realized, and the overall structure of the circuit breaker device can be simplified.

[0011] In a possible design, the circuit breaker body includes a mounting structure, and along the first direction, the mounting structure is arranged on a side of the second part away from the first part.

[0012] The accessory is detachably connected to the circuit breaker body, and the accessory is located at a side of the second part away from the mounting structure.

[0013] With the circuit breaker device provided by this embodiment, the mounting structure is arranged on the side of the second part away from the first part, and the accessories are located on the side of the second part away from the mounting structure, so that when the staff opens the distribution box, they can visually see the accessories. The accessories are detachably connected to the circuit breaker body, so that the accessories can be installed on the circuit breaker body after the circuit breaker body is installed. When the accessories fail, the staff can open the distribution box and repair, inspect or replace the accessories without removing the circuit breaker body.

[0014] In a possible design, the circuit breaker body includes a first contact assembly, the first contact assembly includes a first moving contact terminal, and the first moving contact terminal is located in the second part.

[0015] The first moving contact terminal comprises a first locking screw for locking the wire, and the second part exposes the adjustment end of the first locking screw.

[0016] The attachment overlaps with the first locking screw in projection along the first direction, and the attachment is provided with an adjustment hole leading to the adjustment end.

[0017] In the circuit breaker device provided by this embodiment, the accessory is located in the step area, and the accessory overlaps with the first locking screw in projection along the first direction. In this structure, by providing an adjustment hole leading to the adjustment end in the accessory, even if the accessory overlaps with the first locking screw in projection along the first direction, the first locking screw can be adjusted through the adjustment hole without affecting the adjustment of the first moving contact terminal of the circuit breaker body by the outside world.

[0018] In a possible design, the support member includes a driving portion, and along the second direction, the driving portion is located on a side of the support member close to the step area.

[0019] The accessory comprises a second housing, a second contact assembly and a rotating arm, the second housing is fixed to the step area, the second contact assembly comprises a second moving contact and a second stationary contact, and the second moving contact and the second stationary contact are located in the second housing.

[0020] The rotating arm is rotatably connected to the second housing, one end of the rotating arm is located on the rotating path of the driving part, and the other end of the rotating arm is connected to the second moving contact.

[0021] When the circuit breaker body is closed, the driving part can drive the second moving contact to contact the second static contact through the rotating arm.

[0022] When the circuit breaker body is opened, the driving part can release the driving of the rotating arm, so that the second moving contact is separated from the second static contact.

[0023] Through the circuit breaker device provided by this embodiment, the accessory can provide feedback on the closing and opening states of the circuit breaker body. The structure of the accessory is very simple. The accessory only includes a second housing, a rotating arm and a second contact assembly. The rotating arm directly cooperates with the support member on the circuit breaker body to realize the feedback of the closing and opening states of the circuit breaker body by the accessory. In this way, compared with the accessory structure with the same function in the prior art, the operating mechanism is omitted and the overall structure is greatly simplified.

[0024] In a possible design, the second moving contact includes a moving contact bracket and a moving contact point. The moving contact bracket is an elastic bracket, and the moving contact point is fixedly connected to the moving contact bracket.

[0025] In a possible design, the moving contact bracket is a plate-shaped member with a bending structure, a slot is provided on the rotating arm, and the moving contact bracket is plugged into the slot.

[0026] In the circuit breaker device provided by this embodiment, the moving contact bracket is a plate-shaped member with a bending structure, and the rotating arm and the moving contact bracket can be connected by plugging. The structure is relatively simple, easy to assemble, and simple to implement.

[0027] In a possible design, the accessory further includes a test button, and the second stationary contact includes a stationary contact point. The test button can act on the moving contact support to achieve contact and separation between the moving contact point and the stationary contact point.

[0028] Through the circuit breaker device provided by this embodiment, the accessories of the present application include a test button. The function of the test button is to realize the contact and separation of the moving contact and the static contact. In this way, the closing and opening functions of the accessory can be tested through the test button to ensure the quality of the accessory.

[0029] In a possible design, the test button is in contact with the rotating arm. Under the action of external force, the test button can cause the rotating arm to rotate, driving the moving contact to contact the static contact. After the external force disappears, the rotating arm rotates in the opposite direction under the reverse elastic force of the moving contact bracket, driving the moving contact to separate from the static contact and driving the test button to reset.

[0030] With the circuit breaker device provided by this embodiment, the test button can drive the rotating arm to make the moving contact contact with the static contact under the action of external force, and can reset when the external force disappears. In this way, when the accessory adopting this structure cooperates with the circuit breaker body, the test function of the test button will not conflict with the control function of the circuit breaker body on the accessory. Therefore, after the accessory is assembled with the circuit breaker body, the opening and closing functions of the accessory can still be tested through the test button.

[0031] In a possible design, the second contact assembly includes a second moving contact terminal and a second stationary contact terminal.

[0032] Along the second direction, the second shell includes a first installation area and a second installation area, the first installation area is close to the support, and the second installation area is located on the side of the first installation area away from the support, the second moving contact and the second static contact are located in the first installation area, and the second moving contact terminal and the second static contact terminal are arranged side by side in the second installation area along the third direction.

[0033] With the circuit breaker device provided by this embodiment, the second moving contact and the second stationary contact are arranged in the first installation area, which is convenient for matching with the support. The second moving contact terminal and the second stationary contact terminal are arranged side by side in the second installation area, so that the space can be fully utilized and the wiring is convenient.

[0034] In a possible design, the second moving contact terminal and / or the second stationary contact terminal is a tunnel-type terminal.

[0035] With the circuit breaker device provided by this embodiment, since the accessory is arranged in the step area and in the third direction, the accessory can have a larger size, the second moving contact terminal and / or the second static contact terminal of the present application can select a tunnel type terminal, thereby improving the wiring capacity of the accessory and improving the quality of the accessory. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 Shown is a schematic structural diagram of the circuit breaker body in the present application.

[0037] Figure 2 The present invention is a schematic diagram of an assembly structure of a circuit breaker device in the prior art.

[0038] Figure 3The figure shows the arrangement of the circuit breaker device in the distribution box in the prior art.

[0039] Figure 4 A schematic structural diagram of a circuit breaker device provided in an embodiment of the present application.

[0040] Figure 5 for Figure 4 The structure shown is a schematic diagram of the structure after a portion of the first shell of the circuit breaker body is hidden.

[0041] Figure 6 for Figure 5 The schematic diagram of the internal structure of the circuit breaker device shown is a schematic diagram with some components hidden.

[0042] Figure 7 for Figure 6 Enlarged view of point A in the middle.

[0043] Figure 8 Shown is a schematic structural diagram of a support member provided in an embodiment of the present application.

[0044] Fig. 9 Shown is a schematic structural diagram of a rotating arm provided in an embodiment of the present application.

[0045] Fig.10 The figure shows a schematic diagram of the accessory structure of the normal closing and opening state of the feedback circuit breaker in the prior art.

[0046] Fig.11 for Figure 7 Schematic diagram of the partial structure of the second shell.

[0047] Fig.12 A schematic diagram of the structure of a test button and a rotating arm provided in an embodiment of the present application.

[0048] Fig.13 for Fig.12 Schematic diagram of the structure from another perspective.

[0049] The accompanying drawings in the prior art are marked as:

[0050] A1, accessory; A11, second housing; A12, second operating mechanism; A121, second operating part; A1211, second operating handle; A122, second connecting rod; A123, second lock catch; A124, second trip catch; A125, rocker arm; A13, second moving contact; A14, second stationary contact;

[0051] A2, circuit breaker body; A2211, first operating handle; A3, distribution box.

[0052] The accompanying drawings in this application are denoted as follows:

[0053] B1, accessory; B11, second housing; B111, adjustment hole; B112, buckle; B113, positioning column; B114, support column; B115, guide hole; B11A, first installation area; B11B, second installation area;

[0054] B13, rotating arm; B131, slot;

[0055] B14, second moving contact; B141, moving contact bracket; B142, moving contact;

[0056] B15, second static contact; B151, static contact;

[0057] B16, test button; B161, pressing part; B162, contact part;

[0058] B17, second moving contact terminal.

[0059] B2, circuit breaker body;

[0060] B21, first shell; B211, first part; B212, second part; Q, step area;

[0061] B22, operating mechanism; B221, first operating part; B2211, first operating handle; B222, first connecting rod; B223, first locking buckle; B224, first trip buckle; B225, supporting member; B2251, driving part; B226, moving contact support;

[0062] B23, first contact assembly; B231, first moving contact; B232, first stationary contact; B233, first moving contact terminal; B2331, through-type wiring frame; B2332, first locking screw;

[0063] B24, installation structure;

[0064] D1, first direction; D2, second direction; D3, third direction. DETAILED DESCRIPTION

[0065] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0066] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein 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 and claims and the accompanying drawings of this application are intended to cover non-exclusive inclusions.

[0067] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0068] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists, A and B exist at the same time, and B exists. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0069] In addition, the terms "first", "second", etc. in the specification 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 of the features.

[0070] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, the "connection" or "connection" of a mechanical structure may refer to a physical connection. For example, the physical connection may be a fixed connection, such as a fixed connection through a barrier member, such as a fixed connection through screws, bolts or other barrier members. The physical connection may also be a detachable connection, such as a mutual snap-on or snap-fit ​​connection. The physical connection may also be an integral connection, such as a connection formed by welding, bonding or integral molding. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0071] The present application is described in detail below with reference to the accompanying drawings.

[0072] Figure 1 The figure shows the structure of the circuit breaker body in this application. Please refer to Figure 1In this application, the circuit breaker body B2 generally refers to a miniature circuit breaker, which is a device used to protect low-voltage electrical systems from overload and short-circuit faults. They are widely used in residential, commercial buildings and small industrial facilities to ensure the safe and reliable operation of circuits.

[0073] In some application scenarios, some accessories are often added to the miniature circuit breakers, such as overload indication accessories, auxiliary contacts, alarm contacts, shunt releases, overvoltage releases, etc. These accessories can provide additional protection, control and indication functions for the miniature circuit breakers, making the miniature circuit breakers more suitable for various complex application scenarios.

[0074] Figure 2 It is a schematic diagram of an assembly structure of a circuit breaker device in the prior art. Figure 3 This is the layout diagram of the circuit breaker device in the distribution box in the prior art. Please refer to Figure 2 and Figure 3 In the prior art, when the accessory A1 is assembled with the circuit breaker body A2, the accessory A1 is installed on one side of the circuit breaker body A2 in the third direction D3. In this way, the size of the circuit breaker device formed by the circuit breaker body A2 and the accessory A1 in the third direction D3 is increased, and the increase ratio ranges from about 20% to 60%.

[0075] Please continue to refer to Figure 2 and Figure 3 Generally speaking, a plurality of circuit breaker devices can be arranged in a distribution box A3, and the circuit breaker devices are arranged along the third direction D3 in the distribution box A3. The larger the size of the circuit breaker device in the third direction D3, the fewer the number of circuit breaker devices that can be arranged in the distribution box A3. Thus, the fewer the number of current circuits in the distribution box A3, resulting in an increased cost of use for users.

[0076] Therefore, how to use a circuit breaker device with better functions and saving installation space in a given distribution box becomes an urgent problem to be solved.

[0077] Based on this, please refer to Figure 4 , Figure 4 A schematic structural diagram of a circuit breaker device provided in an embodiment of the present application.

[0078] Please combine Figure 1 and Figure 4The circuit breaker device provided in the present application includes a circuit breaker body B2 and an accessory B1. The circuit breaker body B2 includes a first housing B21 and a support member B225. Along the first direction D1, the first housing B21 includes a first portion B211 and a second portion B212 connected to each other. Along the second direction D2, the width of the first portion B211 is smaller than the width of the second portion B212, and a step area Q is formed between the first portion B211 and the second portion B212. The support member B225 is rotatably connected to the first housing B21, and the rotation axis of the support member B225 is parallel to the third direction.

[0079] The attachment B1 is arranged in the step area Q, and along the second direction D2, the attachment B1 is located on one side of the support member B225, and the attachment B1 cooperates with the support member B225 to realize the feedback or control of the state of the circuit breaker body B2 by the attachment B1.

[0080] Figure 5 for Figure 4 The structure shown is a schematic diagram of the structure after the first shell of the circuit breaker body is partially hidden. Please refer to Figure 5 Specifically, in the present application, the circuit breaker body B2 generally includes a first operating mechanism B22 and a first contact assembly B23. The first operating mechanism B22 includes a first operating part B221, a first connecting rod B222, a first lock B223, a first jump buckle B224, a support member B225, a moving contact support B226 and a first torsion spring, etc. The first contact assembly B23 includes a first moving contact B231 and a first static contact B232.

[0081] The first operating part B221 is rotatably connected to the first housing B21, and the first operating handle B2211 of the first operating part B221 is exposed outside the first housing B21. The first connecting rod B222, the first lock B223, the first jumper B224, the support B225, the moving contact support B226 and the first torsion spring are located in the first housing B21, and the first lock B223 and the first jumper B224 are arranged on the support B225, and the moving contact support B226 is connected to the support B225 through the first torsion spring.

[0082] When the circuit breaker body B2 is closed, the first operating part B221 rotates, and the first connecting rod B222 drives the support member B225 to rotate. During the rotation of the support member B225, the first trip buckle B224 abuts against the first lock buckle B223, and the support member B225 drives the moving contact support B226 to make the first moving contact B231 contact the first static contact B232. When the circuit breaker body B2 is opened, the first trip buckle B224 disengages from the first lock buckle B223, and the support member B225 rotates in the opposite direction, driving the moving contact support B226, so that the first moving contact B231 installed on the moving contact support B226 is separated from the first static contact B232.

[0083] It should be noted that the support member B225 mentioned in this application is not limited to Figure 4 and Figure 5 Specifically, the support member B225, in some embodiments of the present application, the support member B225 may also be combined with the moving contact support B226, then some other related structures of the circuit breaker body B2 will also change accordingly.

[0084] It should also be noted that, in some embodiments of the present application, the support member B225 and the moving contact support B226 can be connected by a compression spring to achieve transmission between the support member B225 and the moving contact support B226. In other embodiments of the present application, the support member B225 and the moving contact support B226 can also be connected by a torsion spring to also achieve transmission between the support member B225 and the moving contact support B226. In addition, the connection between the support member B225 and the moving contact support B226 can also be achieved in other ways.

[0085] As can be seen from the above, the support member B225 mentioned in this application has a relatively broad meaning. First, the support member B225 is a rotating member. Second, in the circuit breaker body B2, the support member B225 can rotate in both positive and negative directions under the drive of the first operating part B221, and the rotation state can determine whether the first moving contact B231 and the first static contact B232 are in contact or separated. Therefore, the state of the support member B225 can reflect the closing and opening state of the circuit breaker body B2.

[0086] Please Figure 2 The structure shown is Figure 4 Compared with the structure shown in FIG. 1 , in the prior art, the attachment A1 is installed on one side of the third direction of the circuit breaker body A2, and the linkage structure between the attachment A1 and the circuit breaker body A2 relies on the first operating handle A2211 of the circuit breaker body A2. Correspondingly, the attachment A1 is also configured with a second operating handle A1211 corresponding to the first operating handle A2211 of the circuit breaker body A2, and the mutual control or status feedback between the two is realized through the cooperation of the first operating handle A2211 and the second operating handle A1211.

[0087] Please continue to refer to Figure 1 , Figure 4 and Figure 5 In the present application, the first housing B21 of the circuit breaker body B2 includes a first portion B211 and a second portion B212 connected to each other. Along the second direction D2, the width of the first portion B211 is smaller than the width of the second portion B212, and a step region Q is formed between the first portion B211 and the second portion B212. Moreover, the support member B225 is generally closer to the step region Q.

[0088] Through careful study of the structure of the circuit breaker body B2, the present application sets the accessory B1 in the step area Q. In this way, when the circuit breaker device is installed in the distribution box, the accessory B1 will not occupy or occupy less of the installation dimensions of the distribution box in the third direction, which is helpful to set more circuit breaker devices in the distribution box and increase the number of distribution circuits in the distribution box.

[0089] At the same time, the present application abandons the technical solution of using the first operating handle B2211 of the circuit breaker body B2 as a linkage structure, and adopts the support B225 of the circuit breaker body B2 as a linkage structure between the circuit breaker body B2 and the accessory B1. The state of the circuit breaker body B2 is transmitted to the accessory B1 through the support B225, and the accessory B1 can control the closing and opening of the circuit breaker through the support B225. From the current structure, when the accessory B1 is set in the step area Q, the accessory B1 is easy to connect with the support B225 of the circuit breaker body B2. In this way, the connection between the accessory B1 and the circuit breaker body B2 can be realized, and it is conducive to simplifying the overall structure of the circuit breaker device.

[0090] In summary, the circuit breaker device provided by the present application, by utilizing the structural characteristics of the circuit breaker body B2 itself, sets the accessory B1 in the step area Q, which is helpful to set more circuit breaker devices in the distribution box and increase the number of distribution circuits in the distribution box. And the support B225 of the circuit breaker body B2 is used as the linkage structure between the circuit breaker body B2 and the accessory B1, so that the connection between the accessory B1 and the circuit breaker body B2 can be realized, and it is helpful to simplify the overall structure of the circuit breaker device.

[0091] It can be understood that the accessory B1 mentioned in the present application can be any one or a combination of several of an overload indication accessory, an auxiliary contact, an alarm contact, a shunt release, and an overvoltage release.

[0092] It can also be understood that the circuit breaker body B2 in the present application can be a miniature circuit breaker that is currently widely used, or can be other types of circuit breakers with an appearance and internal operating structure similar to that of a miniature circuit breaker.

[0093] It can also be understood that, in the circuit breaker device provided in the present application, the circuit breaker body B2 can be a level 1 circuit breaker, a level 2 circuit breaker, or a level 3 or level 4 circuit breaker.

[0094] It should also be noted that, although the present application does not provide a very detailed description of the shapes and connection relationships of the components in the operating structure, for those skilled in the art, although the operating mechanisms of different circuit breaker bodies are different, the basic composition and principle of the operating mechanism inside the circuit breaker body are similar. Therefore, the first operating mechanism B22 involved in the present application is clear. The improvement of the present application is to use the support member B225 of the first operating mechanism B22 in the circuit breaker body B2 as the linkage member of the attachment B1. The first operating mechanism B22 of the circuit breaker body B2 itself is not the invention point of the present application. The embodiment of the present application provides Figure 5 The composition of the first operating mechanism B22 shown in the figure is only one implementation of the present application.

[0095] Please continue to refer to Figure 1 and Figure 5 In some embodiments of the present application, the circuit breaker body B2 includes a mounting structure B24, and along the first direction D1, the mounting structure B24 is arranged on a side of the second part B212 away from the first part B211.

[0096] The accessory B1 is located on a side of the second portion B212 away from the mounting structure B24, and the accessory B1 is detachably connected to the circuit breaker body B2.

[0097] For more details, please refer to Figure 5 The circuit breaker body B2 usually needs to be installed in a distribution box. In order to facilitate installation, a mounting structure B24 is provided on the circuit breaker body B2. During installation, one side of the circuit breaker body B2 on which the mounting structure B24 is provided faces the inside of the distribution box, and the other side of the circuit breaker body B2 away from the mounting structure B24 faces the outside of the distribution box, and the first operating handle B2211 of the circuit breaker body B2 is exposed, so that the circuit breaker body B2 can be operated easily.

[0098] In some embodiments of the present application, the mounting structure B24 is disposed on a side of the second portion B212 away from the first portion B211, and the accessory B1 is located on a side of the second portion B212 away from the mounting structure B24, so that when the staff opens the distribution box, the accessory B1 can be visually seen. The accessory B1 is detachably connected to the circuit breaker body B2, so that the accessory B1 can be installed on the circuit breaker body B2 after the circuit breaker body B2 is installed. When the accessory B1 fails, the staff can open the distribution box and repair, inspect or replace the accessory B1 without removing the circuit breaker body B2.

[0099] It can be understood that in some embodiments of the present application, the mounting structure B24 can be a guide rail mounting groove, and the circuit breaker body B2 can be fixed on the guide rail in the distribution box by means of the guide rail mounting groove.

[0100] It can also be understood that in some embodiments of the present application, a buckle B112 can be provided on the side of the accessory B1 close to the circuit breaker body B2, and a slot corresponding to the buckle B112 can be provided on the side of the circuit breaker body B2 close to the accessory B1, so that the accessory B1 can be snap-connected with the circuit breaker body B2.

[0101] It can also be understood that in some embodiments of the present application, a positioning column B113 can be provided on the side of the accessory B1 close to the circuit breaker body B2, and a positioning hole corresponding to the positioning column B113 can be provided on the side of the circuit breaker body B2 close to the accessory B1, so that the accessory B1 can be plugged into the circuit breaker body B2.

[0102] It can also be understood that there are many ways to detachably connect the accessory B1 to the circuit breaker body B2, such as screw connection, riveting, etc. The above are only examples and are not intended to limit the detachable connection method between the accessory B1 and the circuit breaker body B2 of this application.

[0103] Figure 6 for Figure 5 The internal structure of the circuit breaker shown is a schematic diagram with some components hidden. Figure 1 and Figure 6 In some embodiments of the present application, the first contact assembly B23 includes a first moving contact terminal B233, and the first moving contact terminal B233 is located in the second part B212.

[0104] The first moving contact terminal B233 includes a first locking screw B2332 for locking the wire, and the second part B212 exposes the adjustment end of the first locking screw B2332.

[0105] The attachment B1 overlaps with the projection of the first locking screw B2332 along the first direction D1, and the attachment B1 is provided with an adjustment hole B111 leading to the adjustment end.

[0106] For more information, see Figure 1 and Figure 6 In the present application, the first moving contact terminal B233 is used to electrically connect the external circuit with the first moving contact B231 of the circuit breaker body B2.

[0107] In some embodiments of the present application, the first moving contact terminal B233 is located in the second part B212, and a tunnel-type terminal is often used. The first moving contact terminal B233 includes a through-type wiring frame B2331 and a first locking screw B2332. The wiring direction of the through-type wiring frame B2331 is along the second direction D2. The first locking screw B2332 is located on the side of the through-type wiring frame B2331 close to the first part B211, and the second part B212 exposes the adjustment end of the first locking screw B2332, so that the first locking screw B2332 can lock the wire.

[0108] In this embodiment, the attachment B1 is located in the step area Q, and the attachment B1 overlaps with the first locking screw B2332 in the projection along the first direction D1. In this structure, by providing an adjustment hole B111 leading to the adjustment end in the attachment B1, even if the attachment B1 overlaps with the first locking screw B2332 in the projection along the first direction D1, the first locking screw B2332 can be adjusted through the adjustment hole B111, and the adjustment of the first moving contact terminal B233 of the circuit breaker body B2 by the outside world is not affected.

[0109] Figure 7 for Figure 6 Enlarged view of point A in the middle. Figure 8 FIG. 1 is a schematic diagram of a structure of a support member provided in an embodiment of the present application. Fig. 9 Shown is a schematic structural diagram of a rotating arm provided in an embodiment of the present application.

[0110] Please refer to Figure 1 , Figure 7 , Figure 8 and Fig. 9 In some embodiments of the present application, the support member B225 includes a driving portion B2251, and along the second direction D2, the driving portion B2251 is located on a side of the support member B225 close to the step region Q.

[0111] The accessory B1 includes a second shell B11, a second contact assembly and a rotating arm B13. The second shell B11 is fixed to the step area Q. The second contact assembly includes a second moving contact B14 and a second stationary contact B15. The second moving contact B14 and the second stationary contact B15 are located in the second shell B11.

[0112] The rotating arm B13 is rotatably connected to the second housing B11 , one end of the rotating arm B13 is located on the rotating path of the driving part B2251 , and the other end of the rotating arm B13 is connected to the second moving contact B14 .

[0113] When the circuit breaker body B2 is closed, the driving part B2251 can drive the second moving contact B14 to contact the second static contact B15 through the rotating arm B13.

[0114] When the circuit breaker body B2 is opened, the driving part B2251 can release the drive on the rotating arm B13, so that the second moving contact B14 is separated from the second static contact B15.

[0115] Specifically, in the circuit breaker device provided in this embodiment, when the circuit breaker body B2 is closed, the driving part B2251 provided on the support member B225 will rotate toward the rotating arm B13, and drive the second moving contact B14 to contact the second static contact B15 through the rotating arm B13. In this way, the accessory B1 is able to feedback the closing state of the circuit breaker body B2. When the circuit breaker body B2 is opened, the driving part B2251 provided on the support member B225 will rotate in a direction away from the rotating arm B13, release the drive to the second moving contact B14, and separate the second moving contact B14 from the second static contact B15. In this way, the accessory B1 is able to feedback the opening state of the circuit breaker body B2.

[0116] Fig.10 The figure shows the schematic diagram of the accessory structure of the normal closing and opening state of the feedback circuit breaker in the prior art. Fig.10 ,exist Fig.10 In the structure shown, accessory A1 has a second shell A11, a second operating mechanism A12 and a second contact assembly. The second operating mechanism A12 includes a second operating part A121, a second connecting rod A122, a second lock A123, a second jump lock A124 and a rocker arm A125, etc. The second contact assembly includes a second moving contact A13 and a second static contact A14.

[0117] Among them, the second operating part A121 is rotatably connected with the second housing A11, and the second operating handle A1211 of the second operating part A121 is leaked outside the second housing A11. The second connecting rod A122, the second lock buckle A123, the second trip buckle A124, the rocker arm A125, etc. are located in the second housing A11. When the accessory A1 is closed, the second operating part A121 rotates, the second trip buckle A124 abuts against the second lock buckle A123, the rocker arm A125 rotates, and the rocker arm A125 drives the second moving contact A13 to contact the second static contact A14. When the accessory A1 is opened, the second operating part A121 rotates in the opposite direction, the second trip buckle A124 disengages from the second lock buckle A123, the rocker arm A125 rotates in the opposite direction, and the rocker arm A125 drives the second moving contact A13 to separate from the second static contact A14.

[0118] Please refer to Figure 2 ,and Figure 2 The circuit breaker device is similar to Fig.10When the accessory A1 shown is assembled with the circuit breaker body A2, the second operating handle A1211 of the accessory A1 also needs to be synchronously linked with the first operating handle A2211 of the circuit breaker body A2, so that when the circuit breaker body A2 is closed, the second operating handle A1211 of the accessory A1 drives the second contact assembly to close. When the circuit breaker body A2 is opened, the second operating handle A1211 of the accessory A1 drives the second contact assembly to open, so as to realize the feedback of the accessory A1 on the closing and opening status of the circuit breaker body.

[0119] Please Fig.10 The structure shown is Figure 6 , Figure 7 Compared with the accessory structure in the structure shown in the figure, in the circuit breaker device of the present application, the structure of the accessory B1 is very simple, and only includes the second shell B11, the rotating arm B13 and the second contact assembly. The rotating arm B13 directly cooperates with the support member B225 on the circuit breaker body B2, so that the accessory B1 can feedback the closing and opening states of the circuit breaker body B2. In this way, compared with the accessory A1 structure in the prior art, the second operating mechanism A12 is omitted, and the overall structure is greatly simplified.

[0120] Please continue to refer to Figure 6 and Figure 7 In some embodiments of the present application, the second moving contact B14 includes a moving contact bracket B141 and a moving contact point B142. The moving contact bracket B141 is an elastic bracket, and the moving contact point B142 is fixedly connected to the moving contact bracket B141.

[0121] For more details, please refer to Figure 5 and Figure 6 In some embodiments of the present application, the moving contact bracket B141 is an elastic bracket, therefore, the moving contact bracket B141 has a certain deformation ability, and the deformation ability can change the position of the moving contact B142 on the moving contact bracket B141, thereby realizing the contact and separation of the moving contact B142 and the static contact B151 on the second static contact B15.

[0122] Please continue to refer to Figure 6 and Figure 7 , Figure 6 and Figure 7 An accessory B1 capable of providing feedback on the closing and opening states of a circuit breaker is provided. In this embodiment, the second moving contact B14 bracket is located on the side of the second static contact B15 close to the second part B212, and the moving contact B142 is located on the side of the static contact B151 close to the second part B212.

[0123] When the circuit breaker body B2 is closed, the rotating arm B13 applies a pulling force to the moving contact bracket B141, and the moving contact bracket B141 is deformed, driving the moving contact B142 to move toward the static contact B151, and the accessory B1 is closed. When the circuit breaker body B2 is opened, the driving force of the rotating arm B13 disappears, the moving contact bracket B141 recovers its deformation, driving the moving contact B142 away from the static contact B151, and the accessory B1 is opened.

[0124] In summary, based on the circuit breaker device provided in this embodiment, since the moving contact bracket B141 used by the second moving contact B14 is elastic, the contact and separation of the moving contact B142 and the static contact B151 can be achieved through the elastic deformation of the moving contact bracket B141. Therefore, the circuit breaker device provided in this application has the characteristics of simple structure and easy implementation.

[0125] Please continue to refer to Figure 7 , Figure 8 and Fig. 9 In some embodiments of the present application, the moving contact bracket B141 is a plate-like member with a bending structure, and a slot B131 is provided on the rotating arm B13, and the moving contact bracket B141 is inserted into the slot B131.

[0126] Specifically, if Figure 7 As shown, as an implementation mode of the present application, the moving contact bracket B141 can be formed by bending a metal plate. The moving contact bracket B141 has a certain deformation ability due to its bending structure.

[0127] Fig.11 for Figure 7 Partial structural diagram of the second housing B11. Figure 7 , Fig. 9 and Fig.11 When the accessory B1 is assembled, the moving contact bracket B141 can be supported by the support column B114 set on the second shell B11. The bending part of the moving contact bracket B141 cooperates with the support column B114, and the support column B114 is used as the boundary. The end of the moving contact bracket B141 on one side of the support column B114 is used to abut against the shell wall of the second shell B11 of the accessory B1, and the moving contact bracket B141 on the other side of the support column B114 is provided with a moving contact point B142, and the moving contact bracket B141 on the other side of the support column B114 is plugged into the rotating arm B13.

[0128] Based on the circuit breaker device provided in this embodiment, the moving contact bracket B141 is a plate-like member with a bending structure, and the rotating arm B13 and the moving contact bracket B141 can be connected by plugging. This structure is relatively simple, easy to assemble, and simple to implement.

[0129] It should be noted that Figure 7 The moving contact bracket B141 shown in the figure is only one implementation of the moving contact bracket B141 of the present application. Based on the core concept of the present application, the moving contact bracket B141 can also have different deformation forms.

[0130] Please continue to refer to Figure 6 and Figure 7 In some embodiments of the present application, the attachment B1 further includes a test button B16, and the second static contact B15 includes a static contact B151. The test button B16 can act on the moving contact support B141 to achieve contact and separation between the moving contact B142 and the static contact B151.

[0131] Specifically, Appendix B1 of the present application includes a test button B16. The function of the test button B16 is to realize the contact and separation of the moving contact B142 and the static contact B151. In this way, the closing and opening functions of Appendix B1 can be tested by the test button B16 to ensure the quality of Appendix B1.

[0132] Please continue to refer to Figure 6 and Figure 7 In some embodiments of the present application, the test button B16 is in contact with the rotating arm B13. Under the action of external force, the test button B16 can cause the rotating arm B13 to rotate, driving the moving contact B142 to contact the static contact B151. After the external force disappears, the rotating arm B13 rotates in the opposite direction under the reverse elastic force of the moving contact bracket B141, driving the moving contact B142 to separate from the static contact B151, and driving the test button B16 to reset.

[0133] Specifically, in some embodiments of the present application, the test button B16 is in contact with the rotating arm B13, and the test button B16 acts on the moving contact bracket B141 through the rotating arm B13. The effect of the test button B16 on the rotating arm B13 is equivalent to the effect of the driving part B2251 on the rotating arm B13.

[0134] Based on the circuit breaker device provided by this embodiment, the test button B16 can drive the rotating arm B13 to make the moving contact B142 contact with the static contact B151 under the action of external force, and can be reset when the external force disappears. In this way, when the accessory B1 adopting this structure cooperates with the circuit breaker body B2, the test function of the test button B16 will not conflict with the control function of the circuit breaker body B2 on the accessory B1. Therefore, after the accessory B1 is assembled with the circuit breaker body B2, the opening and closing functions of the accessory B1 can still be tested by the test button B16.

[0135] Fig.12 A schematic diagram of the structure of the cooperation between a test button B16 and a rotating arm B13 provided in an embodiment of the present application is shown in FIG. Fig.13 for Fig.12 Schematic diagram of the structure from another perspective.

[0136] Please combine Figure 7 , Fig.10 , Fig.11 and Fig.12 In some embodiments of the present application, the test button B16 has a pressing portion B161 and a contact portion B162 connected to each other, and the second housing B11 is provided with a guide hole B115 that matches the pressing portion B161, and the pressing portion B161 can make linear reciprocating movements along the guide hole B115. The contact portion B162 is located in the second housing B11 and contacts the rotating arm B13. When the accessory B1 is tested for closing and opening, the pressing portion B161 is squeezed, and the pressing portion B161 moves in a straight line, driving the contact portion B162, and the contact portion B162 drives the rotating arm B13 to rotate, and the rotating arm B13 acts on the moving contact bracket B141, so that the moving contact B142 contacts the static contact B151. Afterwards, the pressing part B161 is released, the moving contact bracket B141 rebounds, driving the rotating arm B13, and the contact part B162 automatically drives the pressing part B161 to reset under the reverse force of the rotating arm B13.

[0137] It should be noted that Fig.11 , Fig.12 It only illustrates a specific structure of the test button B16, which is not the only structure of the test button B16 of the present application. Based on the core idea of ​​the present application and the structural shapes of other components in Appendix B1, the test button B16 may also have other forms of expression, and the present application does not impose any restrictions on this.

[0138] Please combine Figure 5 and Fig.10 In some embodiments of the present application, the second contact assembly includes a second moving contact terminal B17 and a second stationary contact terminal.

[0139] Along the second direction D2, the second shell B11 includes a first installation area B11A and a second installation area B11B, the first installation area B11A is close to the support B225, and the second installation area B11B is located on the side of the first installation area B11A away from the support B225, the second moving contact B14 and the second static contact B15 are located in the first installation area B11A, and the second moving contact terminal B17 and the second static contact terminal are arranged side by side in the second installation area B11B along the third direction D3.

[0140] For more details, please refer to Figure 7 and Fig.11In the present application, the second moving contact terminal B17 is used to electrically connect the external circuit with the second moving contact B14 of the accessory B1, and the second stationary contact terminal is used to electrically connect the external circuit with the second stationary contact B15 of the accessory B1.

[0141] Please continue to refer to Fig.10 In some embodiments of the present application, the second housing B11 is divided into a first installation area B11A and a second installation area B11B along the second direction D2, the first installation area B11A is close to the support B225, and the second installation area B11B is far away from the support B225. The second moving contact B14 and the second static contact B15 are arranged in the first installation area B11A to facilitate the matching with the support B225. The second moving contact terminal B17 and the second static contact terminal are arranged side by side in the second installation area B11B, so that full use of space can be achieved and wiring is convenient.

[0142] Please continue to refer to Figure 7 and Fig.11 In some embodiments of the present application, the second moving contact terminal B17 and / or the second static contact terminal are tunnel type terminals.

[0143] Specifically, the tunnel terminal block has a high wiring capacity, a rated torque of 1.6Nm, a limit torque of 2.5Nm, and can connect wires: 1mm 2 -10mm 2 Conventional accessories are subject to the limitation of installation space. The second moving contact terminal B17 and the second static contact terminal can only use the pressure plate type terminal. The torque of the pressure plate type terminal is generally 1.0Nm, and the wire that can be connected is: 1mm 2 .

[0144] In some embodiments of the present application, since accessory B1 is arranged in the step area Q and in the third direction D3, accessory B1 can have a larger size, therefore, the second moving contact terminal B17 and / or the second static contact terminal of the present application can select a tunnel type terminal, thereby improving the wiring capacity of the accessory and improving the quality of the accessory.

[0145] Those skilled in the art will appreciate that, although some embodiments herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims, any one of the claimed embodiments may be used in any combination.

[0146] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application is described in detail with reference to the above embodiments, a person of ordinary skill in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A circuit breaker device, characterized in that: include: A circuit breaker body, the circuit breaker body comprising a first shell and a support, wherein along a first direction, the first shell comprises a first part and a second part connected to each other; Along the second direction, the width of the first portion is smaller than the width of the second portion, and a step region is formed between the first portion and the second portion; The support member is rotatably connected to the first shell and is located in the first part. The rotation axis of the support member is parallel to the third direction. The first direction, the second direction and the third direction are perpendicular to each other. An accessory, the accessory is arranged in the step area, and along the second direction, the accessory is located on one side of the support member, and cooperates with the support member to realize feedback or control of the state of the circuit breaker body by the accessory; The support member includes a driving portion, and along the second direction, the driving portion is located on a side of the support member close to the step area; The accessory comprises a second housing, a second contact assembly and a rotating arm, the second housing is fixed to the step area, the second contact assembly comprises a second moving contact and a second stationary contact, and the second moving contact and the second stationary contact are located in the second housing; The rotating arm is rotatably connected to the second housing, one end of the rotating arm is located on the rotating path of the driving part, and the other end of the rotating arm is connected to the second moving contact; When the circuit breaker body is closed, the driving unit can drive the second moving contact to contact the second static contact through the rotating arm; When the circuit breaker body is opened, the driving unit can release the drive on the rotating arm, so that the second moving contact is separated from the second static contact.

2. The circuit breaker device according to claim 1, characterized in that: The circuit breaker body comprises a mounting structure, and along a first direction, the mounting structure is arranged on a side of the second part away from the first part; The accessory is detachably connected to the circuit breaker body, and the accessory is located on a side of the second part away from the mounting structure.

3. The circuit breaker device according to claim 1, characterized in that: The circuit breaker body comprises a first contact assembly, the first contact assembly comprises a first moving contact terminal, and the first moving contact terminal is located in the second part; The first moving contact terminal comprises a first locking screw for locking a wire, and the second portion exposes an adjustment end of the first locking screw; The attachment overlaps with the first locking screw when projected along the first direction, and the attachment is provided with an adjustment hole leading to the adjustment end.

4. The circuit breaker device according to claim 1, characterized in that: The second moving contact comprises a moving contact bracket and a moving contact point. The moving contact bracket is an elastic bracket, and the moving contact point is fixedly connected to the moving contact bracket.

5. The circuit breaker device according to claim 4, characterized in that: The moving contact bracket is a plate-shaped member with a bending structure. The rotating arm is provided with a slot, and the moving contact bracket is plugged into the slot.

6. The circuit breaker device according to claim 4, characterized in that: The accessory further comprises a test button, and the second stationary contact comprises a stationary contact point; The test button can act on the moving contact bracket to achieve contact and separation between the moving contact and the static contact.

7. The circuit breaker device according to claim 6, characterized in that: The test button is in contact with the rotating arm. Under the action of external force, the test button can cause the rotating arm to rotate, thereby driving the moving contact to contact with the static contact. After the external force disappears, the rotating arm rotates in the opposite direction under the reverse elastic force of the moving contact bracket, driving the moving contact to separate from the static contact and driving the test button to reset.

8. The circuit breaker device according to claim 1, characterized in that: The second contact assembly includes a second moving contact terminal and a second stationary contact terminal; Along the second direction, the second shell includes a first installation area and a second installation area, the first installation area is close to the support member, the second installation area is located on the side of the first installation area away from the support member, the second moving contact and the second static contact are located in the first installation area, and the second moving contact terminal and the second static contact terminal are arranged side by side in the second installation area along the third direction.

9. The circuit breaker device according to claim 8, characterized in that: The second moving contact terminal and / or the second stationary contact terminal are tunnel type terminals.

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