Shell assembly and multi-breakpoint circuit breaker
By designing the housing components in a multi-breakpoint circuit breaker and using the cover plate to block the conductive parts, the safety hazards and electric shock risks during the use of the circuit breaker are solved, and the protection of the conductive parts and equipment reliability are improved.
Patent Information
- Application Number
- CN202421855066.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-01
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-08-01
AI Technical Summary
The existing multi-breakpoint circuit breakers have safety hazards during use, especially the risk of electric shock and external erosion caused by leakage of conductive parts.
A housing assembly is designed, including a base and a cover plate, which includes a receiving cavity for receiving terminals and contacts, and the cover plate is located on the side of the conductive member away from the receiving cavity, and isolates the conductive member from the outside.
By blocking conductive parts, the safety hazards and electric shock risks of multi-break breakers during use are reduced, and protection of conductive parts is provided, extending the service life of the equipment.
Smart Images
Figure CN222995327U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of electrical equipment, and particularly relates to a housing assembly and a multi-break circuit breaker. Background Art
[0002] With the development of the photovoltaic industry, the requirements for voltage in the photovoltaic system have increased. Increasing the rated voltage of the photovoltaic system is beneficial to reducing transmission losses and equipment costs. Therefore, a circuit breaker is required to be used in conjunction with the photovoltaic system. However, due to the requirements of high-voltage performance, the current circuit breaker needs multiple breaks to meet user needs. To improve the convenience and safety of user wiring, the need for series connection in the multi-break circuit breaker is increased.
[0003] In the prior art, when connecting the internal circuits of a multi-break circuit breaker in series, a conductive part is commonly used for the series connection, which will cause some potential safety hazards during the use of the multi-break circuit breaker. Therefore, there is an urgent need for a housing assembly and a multi-break circuit breaker. Summary of the Utility Model
[0004] This application provides a housing assembly and a multi-break circuit breaker, which reduce the potential safety hazards existing during the use of the multi-break circuit breaker.
[0005] In a first aspect, this application provides a housing assembly applied to a multi-break circuit breaker. The multi-break circuit breaker includes a conductive part for electrically connecting the contact and the terminal. The housing assembly includes a base and a cover plate. The base includes a receiving cavity for receiving the terminal and the contact. The cover plate is connected to the base, and at least a part of the cover plate is located on the side of the conductive part away from the receiving cavity, and the cover plate is used to shield the conductive part.
[0006] Through the above solution, due to the series connection requirement of the multi-break circuit breaker, it is necessary to connect the terminal and the contact, and part of the conductive part will be exposed outside the multi-break circuit breaker. Therefore, a cover plate for shielding the conductive part is provided on the base. The setting of the cover plate separates the conductive part from the outside. In this way, the potential safety hazards existing during the use of the multi-break circuit breaker can be reduced, thereby reducing the risk of electric shock that the operator may touch the conductive part during use. Moreover, the setting of the cover plate can also reduce the erosion of the outside environment on the conductive part, playing a certain protective role for the conductive part, thereby increasing the reliability of use of the multi-break circuit breaker while also increasing the service life of the multi-break circuit breaker.
[0007] In a possible design, the cover plate includes a first plate located on the side of the conductive part away from the receiving cavity, and the first plate is snap-fitted or inserted into the base.
[0008] Through the above solution, the first plate is arranged on the side of the conductive member away from the accommodating cavity, which can effectively separate the conductive member from the external space, reduce the potential safety hazards existing during the use of the multi-break circuit breaker, and thus reduce the risk of electric shock that the operator may encounter when touching the conductive member during use. The first plate and the base are set to be connected by clamping or plugging, etc., so that the first plate and the base can be detachably connected, reducing the difficulty of installing the conductive member, and also making the maintenance of the conductive member more convenient during the later maintenance process.
[0009] In a possible design, the cover plate further includes a second plate, the second plate is connected to the first plate, and there is a non-zero included angle between the second plate and the first plate. The second plate is connected to the bottom surface of the base.
[0010] Through the above solution, by setting the second plate connected to the first plate and connecting the second plate to the bottom surface, the stability of the cover plate after being installed on the base can be increased, reducing the probability of the problem that the cover plate falls off the base and the conductive member contacts the external space when the multi-break circuit breaker shakes or collides, reducing the potential safety hazards existing during the use of the multi-break circuit breaker, and thus reducing the risk of electric shock that the operator may encounter when touching the conductive member during use, and increasing the reliability of use of the multi-break circuit breaker.
[0011] In a possible design, the base is provided with a first limiting portion, and the cover plate is provided with a first restricted portion that cooperates with the first limiting portion. The first limiting portion is a first groove, and the first restricted portion is a first protrusion. Or, the first limiting portion is a first protrusion, and the first restricted portion is a first groove.
[0012] Through the above solution, by setting the first limiting portion on the base and the first restricted portion that cooperates with the first limiting portion on the cover plate, when the cover plate is installed on the base, the base can be used to limit the cover plate, reducing the possibility of the cover plate moving away from the conductive member;
[0013] In this way, the probability of the problem that the cover plate separates from the base and the conductive member contacts the external space when the multi-break circuit breaker shakes or collides can be reduced, reducing the potential safety hazards existing during the use of the multi-break circuit breaker, and thus reducing the risk of electric shock that the operator may encounter when touching the conductive member during use, and increasing the reliability of use of the multi-break circuit breaker;
[0014] And by setting a first groove on the cover plate, or setting a first protrusion on the cover plate, the creepage distance of the conductive member can also be increased, further increasing the safety of the operator when using the multi-break circuit breaker.
[0015] In a possible design, the base is provided with a plurality of first limiting portions, and the cover plate is provided with a plurality of first restricted portions that cooperate with the plurality of first limiting portions.
[0016] Through the above solution, a plurality of first limiting parts are arranged on the base, and a plurality of first restricted parts matching the first limiting parts are arranged on the cover plate, which can further increase the limiting effect of the base on the cover plate, so that the cover plate can be more firmly fixed on the base, reducing the potential safety hazards existing in the use of the multi-break circuit breaker, and thus reducing the risk of electric shock that the operator may encounter when touching the conductive part during use.
[0017] In a possible design, the conductive part is located outside the accommodation cavity. The base is provided with a first mounting hole and a second mounting hole, both of which communicate with the accommodation cavity. The first end of the conductive part passes through the first mounting hole and is electrically connected to the terminal, and the second end of the conductive part passes through the second mounting hole and is electrically connected to the contact. The cover plate is provided with a second groove, and the remaining part of the conductive part except the first end and the second end is arranged in the second groove.
[0018] Through the above solution, when the conductive part connects the terminal and the moving contact, the part of the conductive part located outside the accommodation cavity contacts the side wall of the base, and the cover plate covers the conductive part, separating the conductive part from the external space, which can reduce the probability of the operator touching the conductive part and generating an electric shock risk during use. Moreover, this setting method is the simplest, does not require excessive modification of the base, and has a low production cost.
[0019] In a possible design, the base is provided with a third groove, the conductive part is located in the third groove, and the cover plate is flat.
[0020] Through the above solution, when the conductive part connects the terminal and the moving contact, the part of the conductive part located outside the accommodation cavity is located in the third groove provided on the base. At this time, the cover plate is covered on the third groove, so that the conductive part can be separated from the external space, which can reduce the probability of the operator touching the conductive part and generating an electric shock risk during use. Moreover, this setting method can make the shape of the base more regular and will not cause protrusions on the side wall of the base.
[0021] In a possible design, the cover plate is provided with a second groove, the base is provided with a third groove, the positions of the second groove and the third groove are opposite, and a part of the conductive part is located in the second groove, and another part of the conductive part is located in the third groove.
[0022] Through the above solution, when the conductive part connects the terminal and the moving contact, the part of the conductive part located outside the accommodation cavity is partially located in the third groove provided on the base, and the other part is located in the second groove on the cover plate. In this way, the conductive part can be located in the cavity formed between the second groove and the third groove, so that the conductive part is separated from the external space, which can reduce the probability that the operator may touch the conductive part during use and cause an electric shock risk. Since the base and the cover plate form a limit, and the conductive part is located between the base and the cover plate, this setting method has the best stability.
[0023] In a second aspect, the present application provides a multi-break circuit breaker, which includes a terminal contact and the housing assembly mentioned in the first aspect above. The terminal is provided on the base, the contact is located in the accommodation cavity, the first end of the conductive part is electrically connected to the terminal, and the second end of the conductive part is electrically connected to the contact.
[0024] Through the above solution, the present application provides a multi-break circuit breaker, which places part of the conductive part in the accommodation cavity provided on the base and uses the cover plate to cover the conductive part. Without affecting the normal use of the conductive part, the exposed area of the conductive part is reduced, thereby reducing the potential safety hazards existing during the use of the multi-break circuit breaker, and thus reducing the electric shock risk of the operator during use.
[0025] For the multi-break circuit breaker provided in the second aspect above, the beneficial effects can refer to the beneficial effects brought by the first aspect and each possible implementation manner of the first aspect, which will not be elaborated here. Description of the Drawings
[0026] Figure 1 It is a schematic diagram of the overall structure of the multi-break circuit breaker provided by the embodiment of the present application.
[0027] Figure 2 It is a schematic diagram of a partial structure of the multi-break circuit breaker provided by the embodiment of the present application.
[0028] Figure 3 is Figure 2 The structural schematic diagram with the cover plate removed in
[0029] Figure 4 It is a schematic diagram of the cover plate provided by the embodiment of the present application from one perspective.
[0030] Figure 5 It is a schematic diagram of the cover plate provided by the embodiment of the present application from another perspective.
[0031] Figure 6 It is a schematic diagram of the overall structure of the base provided by the embodiment of the present application.
[0032] Figure 7This is an exploded view of a partial structure of the multi-break circuit breaker provided by the embodiments of the present application.
[0033] Figure 8 This is a cross-sectional view of a partial structure of the multi-break circuit breaker provided by the embodiments of the present application.
[0034] Description of the reference numerals:
[0035] 100, base; 110, accommodation cavity; 120, bottom surface; 130, first limiting portion; 140, first mounting hole; 150, second mounting hole; 160, third groove;
[0036] 200, cover plate; 210, first plate; 220, second plate; 221, first restricted portion; 230, second groove;
[0037] 300, upper cover;
[0038] 400, conductive member; 410, first end; 420, second end;
[0039] 500, terminal;
[0040] 600, moving contact. Detailed implementation manners
[0041] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without making creative efforts shall fall within the protection scope of the present application.
[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.
[0043] The terms "including" and "having" and any variations thereof in the specification and claims of this application and the accompanying drawings are intended to cover but not exclude other things. The word "a" or "an" does not exclude the presence of a plurality.
[0044] Reference to "embodiment" in this document means that the specific features, structures, or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The phrase "embodiment" appearing at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment 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.
[0045] The term "and / or" in this document is merely a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally represents an "or" relationship between the associated objects before and after.
[0046] The orientation terms appearing in the following description are all the directions shown in the figures, and do not limit the static contact of a circuit breaker and the specific structure of the circuit breaker of the present application. For example, in the description of the present application, terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.
[0047] In addition, terms such as "first", "second", etc. in the specification and claims of the present 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 such features.
[0048] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, the "connection" or "coupling" of mechanical structures can refer to a physical connection. For example, a physical connection can be a fixed connection, such as a fixed connection through a fixing member, such as a screw, bolt, or other fixing member; a physical connection can also be a detachable connection, such as a snap connection or a snap-fit connection; a physical connection can also be an integral connection, such as a welded connection, an adhesive connection, or an integrally formed connection. The "connection" or "coupling" of circuit structures can refer to not only a physical connection but also an electrical connection or a signal connection. For example, it can be a direct connection, that is, a physical connection, or it can be indirectly connected through at least one intermediate element, as long as the circuit is connected, and it can also be the communication inside two components; a signal connection can refer to not only a signal connection through a circuit but also a signal connection through a media medium, such as radio waves. 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.
[0049] 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 accompanying drawings.
[0050] Figure 1 It is a schematic diagram of the overall structure of the multi-break circuit breaker provided by the embodiment of the present application. Figure 2 It is a schematic diagram of a partial structure of the multi-break circuit breaker provided by the embodiment of the present application. Figure 3 is Figure 2 the schematic diagram of the structure with the cover removed in Figures 1 to 3 As shown in
[0051] the present application provides a multi-break circuit breaker, which includes a terminal 500, a contact, and a housing assembly. The terminal 500 is provided on the base 100, the contact is located in the accommodation cavity 110, the first end 410 of the conductive member 400 is electrically connected to the terminal 500, and the second end 420 of the conductive member 400 is electrically connected to the contact.
[0052] The terminal 500 can be provided on the side of the accommodation cavity 110 close to the outside. The terminal 500 can be used to connect an external power supply or a load.
[0053] To Figure 2 and Figure 3Taking the example shown, the multi-break circuit breaker mentioned in the embodiments of the present application includes a first pole, a second pole, and a third pole. It should be noted that the contacts and the terminal 500 mentioned in the present application are all located on the same pole.
[0054] In the prior art, in order to improve the convenience and safety of user wiring, it is necessary to increase the series connection requirement in the multi-break circuit breaker. In the present application, the first pole is connected in series with the second pole. During the series connection process, in order to reduce the trouble brought by the user's wiring outside the multi-break circuit breaker, the conductive member 400 is usually used to connect the contact and the terminal 500. However, the conductive member 400 often leaks outside the multi-break circuit breaker. During the use of the multi-break circuit breaker, the exposed conductive member 400 will pose an electric shock risk to the operator, thus creating certain potential safety hazards.
[0055] In summary, the present application provides a multi-break circuit breaker, in which part of the conductive member 400 is placed in the accommodation cavity 110 provided in the base 100, and the conductive member 400 is covered by the cover plate 200. Without affecting the normal use of the conductive member 400, the exposed area of the conductive member 400 is reduced, thereby reducing the potential safety hazards existing during the use of the multi-break circuit breaker, and thus reducing the electric shock risk of the operator during the use process.
[0056] Next, the housing assembly mentioned in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings.
[0057] Please continue to refer to Figures 1 to 3 As shown, the present application provides a housing assembly applied to a multi-break circuit breaker. The multi-break circuit breaker includes a conductive member 400 for electrically connecting the contact and the terminal 500. The housing assembly includes a base 100 and a cover plate 200. The base 100 includes an accommodation cavity 110 for accommodating the terminal 500 and the contact. The cover plate 200 is connected to the base 100, and at least part of the cover plate 200 is located on the side of the conductive member 400 away from the accommodation cavity 110, and the cover plate 200 is used to block the conductive member 400.
[0058] The contact mentioned in the embodiments of the present application can be a moving contact 600 or a static contact. The embodiments of the present application only take the connection between the conductive member 500, the moving contact 600, and the terminal 500 as an example for illustration.
[0059] The accommodation cavity 110 can be the space inside the base 100. The moving contact 600 is rotatably arranged in the accommodation cavity 110, and the terminal 500 can be arranged on the side of the accommodation cavity 110 close to the outside, so that the terminal 500 can be partially exposed outside the multi-break circuit breaker, so that the terminal 500 can be connected to an external power source or load.
[0060] The conductive member 400 can be plate-shaped, columnar, or the like. One end of the conductive member 400 can be fixedly connected to the terminal 500 through a connecting member. Since the moving contact 600 is rotatably disposed in the accommodation cavity 110, considering the rotation requirement of the conductive member 400, the other end of the conductive member 400 can be connected to the moving contact 600 through a flexible wire. From the above settings, it can be known that a part of the conductive member 400 is located inside the accommodation cavity 110, and another part of the conductive member 400 is located outside the accommodation cavity 110. The setting of the conductive member 400 can make the current flowing into the terminal 500 directly flow to the moving contact 600.
[0061] The cover plate 200 can be plate-shaped and can be detachably connected to the base 100. The cover plate 200 can be made of an insulating material. The cover plate 200 can be the same size as the conductive member 400, or the cover plate 200 can be slightly larger than the conductive member 400. Since another part of the conductive member 400 is located outside the accommodation cavity 110, and the side of the conductive member 400 away from the accommodation cavity 110 faces the outside world, the cover plate 200 is provided and the cover plate 200 shields the conductive member 400, so that the conductive member 400 can be separated from the outside world.
[0062] In summary, due to the series connection requirement of the multi-break circuit breaker, the terminal 500 needs to be connected to the moving contact 600, and a part of the conductive member 400 used to connect the moving contact 600 and the terminal 500 will be partially exposed outside the multi-break circuit breaker. Therefore, a cover plate 200 for shielding the conductive member 400 is provided on the base 100. The setting of the cover plate 200 separates the conductive member 400 from the outside world. In this way, the potential safety hazards existing during the use of the multi-break circuit breaker can be reduced, thereby reducing the risk of electric shock that the operator may encounter when touching the conductive member 400 during use. Moreover, the setting of the cover plate 200 can also reduce the erosion of the external environment on the conductive member 400, playing a certain protective role for the conductive member 400. Thus, while increasing the reliability of the multi-break circuit breaker during use, the service life of the multi-break circuit breaker is also increased.
[0063] Next, an example will be given of the composition structure of the cover plate 200 and the connection method between the cover plate 200 and the base 100.
[0064] Figure 4 It is a schematic structural diagram of the cover plate provided by the embodiment of the present application from one perspective. Figure 5 It is a schematic structural diagram of the cover plate provided by the embodiment of the present application from another perspective. As Figure 2 、 Figure 4 And Figure 5 shown, the cover plate 200 includes a first plate 210. The first plate 210 is located on the side of the conductive member 400 away from the accommodation cavity 110, and the first plate 210 is snap-connected or inserted into the base 100.
[0065] Since the side of the conductive member 400 away from the accommodation cavity 110 is in contact with the external space, the first plate 210 is disposed on the side of the conductive member 400 away from the accommodation cavity 110.
[0066] There are various connection manners between the first plate 210 and the base 100. For example, the first plate 210 can be snap-connected to the base 100, or the first plate 210 can be inserted into the base 100. When the first plate 210 is snap-connected to the base 100, a snap block can be disposed on the first plate 210, and a card slot corresponding to the snap block can be disposed on the base 100. Or, when the first plate 210 is inserted into the base 100, an insertion bar can be disposed on the first plate 210, and a slot corresponding to the insertion bar can be disposed on the base 100.
[0067] Through the above arrangement, by disposing the first plate 210 on the side of the conductive member 400 away from the accommodation cavity 110, the conductive member 400 can be effectively separated from the external space, reducing the potential safety hazards existing during the use of the multi-breakpoint circuit breaker, thereby reducing the electric shock risk that an operator may touch the conductive member 400 during use. Setting the first plate 210 and the base 100 to be snap-connected or inserted, etc., enables a detachable connection between the first plate 210 and the base 100, reducing the difficulty of installing the conductive member 400 and also making the maintenance of the conductive member 400 more convenient during the later maintenance process.
[0068] Please continue to refer to Figure 2 、 Figure 4 and Figure 5 As shown, the cover plate 200 further includes a second plate 220. The second plate 220 is connected to the first plate 210, and there is a non-zero angle between the second plate 220 and the first plate 210. The second plate 220 is connected to the bottom surface 120 of the base 100.
[0069] The second plate 220 can be integrally formed with the first plate 210, or the second plate 220 and the first plate 210 can be formed separately and then assembled. The second plate 220 can be plate-shaped. The angle between the first plate 210 and the second plate 220 can be 60°, 90° or 120°, etc. The angle between the first plate 210 and the second plate 220 can be determined according to the setting form of the base 100, as long as it satisfies that when the first plate 210 is connected to the base 100, the second plate 220 can be connected to the bottom surface 120.
[0070] At least one through hole can be disposed on the second plate 220, and a threaded hole corresponding to the through hole of the second plate 220 can be disposed on the bottom surface 120 of the base 100. When the cover plate 200 is installed on the base 100, the cover plate 200 can be fixed to the base 100 by using a bolt passing through the through hole on the second plate 220 and the threaded hole disposed on the bottom surface 120 of the base 100.
[0071] In summary, by providing the second plate 220 connected to the first plate 210 and connecting the second plate 220 to the bottom surface 120, the stability of the cover plate 200 after being installed on the base 100 can be increased, and the probability of the problem that when the multi-break circuit breaker shakes or collides, the cover plate 200 falls off the base 100 and the conductive part 400 comes into contact with the external space is reduced. The potential safety hazards existing during the use of the multi-break circuit breaker are reduced, thereby reducing the electric shock risk that the operator may touch the conductive part 400 during the use process, and increasing the reliability of the multi-break circuit breaker in use.
[0072] The present application also makes additional settings on the housing assembly to reduce the potential safety hazards existing during the use of the multi-break circuit breaker. These settings will be introduced by way of example with reference to the accompanying drawings.
[0073] Figure 6 It is a schematic diagram of the overall structure of the base provided by an embodiment of the present application. Figure 7 It is an exploded view of a partial structure of the multi-break circuit breaker provided by an embodiment of the present application. As Figure 6 and Figure 7 shown, the base 100 is provided with a first limiting portion 130, and the cover plate 200 is provided with a first restricted portion 221 that cooperates with the first limiting portion 130. The first limiting portion 130 is a first groove, and the first restricted portion 221 is a first protrusion. Alternatively, the first limiting portion 130 is a first protrusion, and the first restricted portion 221 is a first groove.
[0074] When the first limiting portion 130 is a first groove and the first restricted portion 221 is a first protrusion, the first limiting portion 130 can be integrally formed with the base 100, or the first limiting portion 130 can be provided on the base 100 by methods such as grooving or engraving after the base 100 is formed. The first restricted portion 221 can be integrally formed with the cover plate 200, or the first restricted portion 221 can be formed separately from the cover plate 200 and then assembled.
[0075] When the first limiting portion 130 is a first protrusion and the first restricted portion 221 is a first groove, the first limiting portion 130 can be integrally formed with the base 100, or the first limiting portion 130 can be formed separately from the base 100 and then assembled. The first restricted portion 221 can be integrally formed with the cover plate 200, or the first restricted portion 221 can be provided on the cover plate 200 by methods such as grooving or engraving after the cover plate 200 is formed.
[0076] With the above settings, a first limiting portion 130 is provided on the base 100, and a first restricted portion 221 that cooperates with the first limiting portion 130 is provided on the cover plate 200. When the cover plate 200 is installed on the base 100, the base 100 can be used to limit the cover plate 200, reducing the possibility of the cover plate 200 moving away from the conductive member 400;
[0077] In this way, the probability of the problem that the cover plate 200 separates from the base 100 and the conductive member 400 contacts the external space when the multi-break circuit breaker shakes or collides can be reduced, reducing the potential safety hazards existing during the use of the multi-break circuit breaker, thereby reducing the electric shock risk that the operator may touch the conductive member 400 during use, and increasing the reliability of use of the multi-break circuit breaker;
[0078] And by providing a first groove on the cover plate 200, or by providing a first protrusion on the cover plate 200, the creepage distance of the conductive member 400 can also be increased, further increasing the safety of the operator when using the multi-break circuit breaker.
[0079] Please continue to refer to Figure 6 and Figure 7 As shown, one first limiting portion 130 can be provided on the base 100, or multiple first limiting portions 130 can be provided on the base 100. When multiple first limiting portions 130 are provided on the base 100, multiple first restricted portions 221 that cooperate with the multiple first limiting portions 130 can be provided on the cover plate 200.
[0080] The multiple first limiting portions 130 can be respectively provided at multiple positions on the base 100, or the multiple first limiting portions 130 can be provided at one position on the base 100. When the multiple first limiting portions 130 are respectively provided at multiple positions on the base 100, the multiple first limiting portions 130 can all be strip-shaped. Correspondingly, the multiple first restricted portions 221 can also be strip-shaped. When the multiple first limiting portions 130 are respectively provided at multiple positions on the base 100, the multiple first limiting portions 130 can be arranged at intervals to form a serrated shape. Correspondingly, the multiple first restricted portions 221 can also be arranged at intervals to form a serrated shape.
[0081] With the above settings, by providing multiple first limiting portions 130 on the base 100 and multiple first restricted portions 221 that cooperate with the first limiting portions 130 on the cover plate 200, the limiting effect of the base 100 on the cover plate 200 can be further increased, so that the cover plate 200 can be more firmly fixed on the base 100, reducing the potential safety hazards existing during the use of the multi-break circuit breaker, thereby reducing the electric shock risk that the operator may touch the conductive member 400 during use.
[0082] Such asFigure 3 , Figure 6 and Figure 7 As shown, the conductive member 400 is located outside the receiving cavity 110. The base 100 is provided with a first mounting hole 140 and a second mounting hole 150. Both the first mounting hole 140 and the second mounting hole 150 communicate with the receiving cavity 110. The first end 410 of the conductive member 400 passes through the first mounting hole 140 and is electrically connected to the wiring terminal 500, and the second end 420 of the conductive member 400 passes through the second mounting hole 150 and is electrically connected to the moving contact 600.
[0083] Due to the series connection requirement of the multi-break circuit breaker and to make it easier for the operator to wire, it is necessary to connect the wiring terminal 500 and the moving contact 600 through the conductive member 400. This requires opening the first mounting hole 140 and the second mounting hole 150 that communicate with the receiving cavity 110 on the base 100.
[0084] The first mounting hole 140 and the second mounting hole 150 can be integrally formed with the base 100, or they can be provided on the base 100 by methods such as engraving or grooving after the base 100 is formed. The first mounting hole 140 and the second mounting hole 150 can be circular or square, etc.
[0085] When it is necessary to connect the wiring terminal 500 and the moving contact 600 through the conductive member 400, the first end 410 of the conductive member 400 can pass through the first mounting hole 140 and be electrically connected to the wiring terminal 500, and the second end 420 of the conductive member 400 can pass through the second mounting hole 150 and be electrically connected to the moving contact 600. When the conductive member 400 connects the wiring terminal 500 and the moving contact 600, the remaining parts of the conductive member 400 except the first end 410 and the second end 420 are located outside the receiving cavity 110.
[0086] The cover plate 200 and the base 100 can be combined in various forms to isolate the parts of the conductive member 400 located outside the receiving cavity 110 from the external space. Below, three combination forms of them will be exemplified in this application.
[0087] The first combination form, as Figure 5 shown, the cover plate 200 is provided with a second groove 230, and the remaining parts of the conductive member 400 except the first end 410 and the second end 420 are arranged in the second groove 230.
[0088] The second groove 230 can be integrally formed with the cover plate 200, or it can be provided on the cover plate 200 by methods such as engraving or grooving after the cover plate 200 is formed. The size of the second groove 230 can be the same as that of the conductive member 400, or the second groove 230 can be slightly larger than the size of the conductive member 400.
[0089] In the first form, when the conductive member 400 connects the terminal 500 to the moving contact 600, the portion of the conductive member 400 located outside the accommodation cavity 110 contacts the side wall of the base 100. The cover plate 200 covers the conductive member 400, separating the conductive member 400 from the external space. This can reduce the probability that an operator may touch the conductive member 400 during use and cause an electric shock risk. Moreover, this setting method is the simplest, without the need for excessive modification of the base 100, and the production cost is relatively low.
[0090] Figure 8 This is a partial structural cross-sectional view of the multi-break circuit breaker provided by the embodiment of the present application. The second combination form is as Figure 8 shown. The base 100 is provided with a third groove 160, the conductive member 400 is located in the third groove 160, and the cover plate 200 is in a flat plate shape.
[0091] The third groove 160 can be integrally formed with the base 100, or the third groove 160 can be provided on the base 100 by methods such as engraving or grooving after the base 100 is formed. The size of the third groove 160 can be slightly larger than the size of the conductive member 400.
[0092] The cover plate 200 can be in a flat plate shape. The cover plate 200 can have the same size as the third groove 160, or the cover plate 200 can be slightly larger than the third groove 160. The sum of the thickness of the cover plate 200 and the thickness of the conductive member 400 should be the same as the depth of the third groove 160. In this way, when the conductive member 400 is placed in the third groove 160 and the cover plate 200 covers the third groove 160, the cover plate 200 can be flush with the side wall of the base 100.
[0093] In the second form, when the conductive member 400 connects the terminal 500 to the moving contact 600, the portion of the conductive member 400 located outside the accommodation cavity 110 is located in the third groove 160 provided on the base 100. At this time, the cover plate 200 is covered on the third groove 160, so that the conductive member 400 can be separated from the external space, reducing the probability that an operator may touch the conductive member 400 during use and cause an electric shock risk. Moreover, this setting method can make the shape of the base 100 more regular and will not cause protrusions on the side wall of the base 100.
[0094] The third combination form is as Figure 2 , Figure 3 , Figure 5 and Figure 6 shown. The cover plate 200 is provided with a second groove 230, the base 100 is provided with a third groove 160, the positions of the second groove 230 and the third groove 160 are opposite, a part of the conductive member 400 is located in the second groove 230, and another part of the conductive member 400 is located in the third groove 160.
[0095] In the third form, when the conductive member 400 connects the terminal 500 to the moving contact 600, the portion of the conductive member 400 located outside the accommodating cavity 110 is partially located in the third groove 160 provided on the base 100, and the other part is located in the second groove 230 on the cover plate 200. In this way, the conductive member 400 can be located in the cavity formed between the second groove 230 and the third groove 160, so that the conductive member 400 is separated from the external space, which can reduce the probability that the operator may touch the conductive member 400 during use and cause an electric shock risk. Since the base 100 and the cover plate 200 form a limit, and the conductive member 400 is located between the base 100 and the cover plate 200, this setting method has the best stability.
Claims
1. A housing assembly, applied to a multi-breakpoint circuit breaker, the multi-breakpoint circuit breaker comprising a conductive member, the conductive member being used to electrically connect a contact and a terminal, characterized in that: The housing assembly comprises: A base, comprising a receiving cavity, wherein the receiving cavity is used to receive the wiring terminal and the contact; A cover plate is connected to the base, wherein at least a portion of the cover plate is located on a side of the conductive member away from the accommodating cavity, and the cover plate is used to shield the conductive member.
2. The housing assembly according to claim 1, characterized in that: The cover plate includes a first plate, the first plate is located at a side of the conductive member away from the accommodating cavity, and the first plate is clipped or plugged with the base.
3. The housing assembly according to claim 2, characterized in that: The cover plate further includes a second plate, the second plate is connected to the first plate, and a non-zero angle is formed between the second plate and the first plate; The second plate is connected to the bottom surface of the base.
4. The housing assembly according to any one of claims 1 to 3, characterized in that: The base is provided with a first limiting portion, and the cover is provided with a first limiting portion matching with the first limiting portion; The first limiting portion is a first groove, and the first limiting portion is a first protrusion; or, The first limiting portion is a first protrusion, and the first limiting portion is a first groove.
5. The housing assembly according to any one of claims 1 to 3, characterized in that: The base is provided with a plurality of first limiting portions, and the cover is provided with a plurality of first limiting portions matched with the plurality of first limiting portions.
6. The housing assembly according to claim 1, characterized in that: The conductive member is located outside the accommodating cavity, the base is provided with a first mounting hole and a second mounting hole, the first mounting hole and the second mounting hole are both connected to the accommodating cavity, the first end of the conductive member passes through the first mounting hole to be electrically connected to the wiring terminal, and the second end of the conductive member passes through the second mounting hole to be electrically connected to the contact; The cover plate is provided with a second groove, and the remaining part of the conductive member except the first end and the second end is arranged in the second groove.
7. The housing assembly according to claim 1, characterized in that: The base is provided with a third groove, the conductive member is located in the third groove, and the cover plate is in the shape of a flat plate.
8. The housing assembly according to claim 1, characterized in that: The cover plate is provided with a second groove, the base is provided with a third groove, the second groove is opposite to the third groove, a part of the conductive member is located in the second groove, and another part of the conductive member is located in the third groove.
9. A multi-breakpoint circuit breaker, characterized in that: A housing assembly comprising a terminal, a contact and any one of claims 1 to 8; The wiring terminal is arranged on the base, the contact is located in the accommodating cavity, the first end of the conductive member is electrically connected to the wiring terminal, and the second end of the conductive member is electrically connected to the contact.