Busbar fixing piece and busbar fixing system for air switch

Abstract

The utility model discloses a busbar fixing piece and a busbar fixing system for an air switch. The busbar fixing piece for the air switch comprises a fixing piece body, a mounting groove which is through front and back and used for mounting a busbar is formed in the upper portion of the fixing piece body, and corresponding limiting units are arranged on the left side face and the right side face of the fixing piece body. The busbar fixing system for the air switch comprises a plurality of busbar fixing pieces for the air switch, which are sequentially arranged side by side along the left-right direction. The device can adapt to a novel air switch, and can fix and insulate a copper bar.

Description

Technical Field

[0001] The utility model relates to a busbar fixing piece and a busbar fixing system for an air switch, belonging to the technical field of low-voltage power distribution cabinets. Background Art

[0002] At present, a new type of air switch has appeared on the market, as shown in Chinese utility model patent announcement No. CN215527664U, in which the output terminal is arranged on one side of the input terminal to improve the problem of large front-end space occupation and inconvenient wiring caused by the output terminal being relatively forward.

[0003] The new air switch is different from the traditional air switch in terms of shape, style, wiring and installation. In particular, the traditional air switch is mainly connected by cables, and the air switch only has screws to fasten the cables; while the new air switch is connected by copper busbar insertion. Therefore, a new fixing part needs to be designed to fix the copper busbar while ensuring the insulation between the copper busbars. Utility Model Content

[0004] The purpose of the utility model is to provide a busbar fixing member and a busbar fixing system for an air switch in view of the above-mentioned problems, which can adapt to new air switches and fix and insulate copper busbars.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A busbar fixing for an air switch comprises a fixing body, an installation groove which runs through the fixing body and is used to install the busbar is provided on the fixing body, and corresponding limit units are provided on the left and right sides of the fixing body.

[0007] Optionally, a limiting groove is provided on one side of the fixing body, and a limiting convex portion is provided on the other side of the fixing body.

[0008] Optionally, the fixing body is provided with a connecting slot extending through the fixing body in the left-right direction.

[0009] Optionally, both the left side and the right side of the fixing body are provided with a card slot unit.

[0010] Optionally, a fixing hole is provided in the middle of the fixing body.

[0011] Optionally, a positioning protrusion is provided in the mounting groove.

[0012] A busbar fixing system for an air switch comprises a plurality of busbar fixing members for an air switch as described above which are sequentially arranged side by side in the left-right direction.

[0013] Optionally, a plurality of the fixing member bodies are connected to each other through a supporting member.

[0014] Optionally, a connecting member is provided on the left side of the leftmost fixing member body and on the right side of the rightmost fixing member body, and the connecting member is also provided between at least two of the fixing member bodies.

[0015] Optionally, a partition is provided between adjacent fixing member bodies.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0017] 1. The utility model provides a busbar fixing member and busbar fixing system for an air switch, which is used for an air switch that plugs in and out of a distribution box by plugging in a busbar, thereby ensuring electrical clearance and creepage distance, and also supporting the busbar, thereby reducing production costs;

[0018] 2. The utility model provides a busbar fixing member and busbar fixing system for air switches, which are small in size, and each fixing member body has the same width as the number of air switches, and can be assembled in a single-stage and multi-stage mixed manner to match air switches of different levels. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a busbar fixing for an air switch. Figure 1 .

[0020] Figure 2 This is a schematic diagram of the structure of a busbar fixing for an air switch. Figure 2 .

[0021] Figure 3 The present invention is a structural schematic diagram of a busbar fixing system for an air switch.

[0022] Markings in the figure: 1-fixing part body, 11-installing groove, 12-limiting groove, 13-limiting protrusion, 14-connecting slot, 15-slot unit, 16-fixing hole, 17-positioning protrusion, 18-weight reduction hole, 2-support part, 3-connecting part, 44-partition. DETAILED DESCRIPTION

[0023] The utility model is described in detail below in conjunction with the accompanying drawings.

[0024] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0025] A busbar fixing member for an air switch, such as Figure 1 , 2 As shown, it includes a fixing body 1, an installation groove 11 which passes through from front to back and is used to install the busbar is provided on the upper part of the fixing body 1, and corresponding limiting units are provided on the left and right sides of the fixing body 1.

[0026] Specifically, the fixing body 1 is used to connect the busbar and support the busbar, wherein the installation groove 11 can be used to limit the busbar so as to fix it, and can separate multiple busbars, and ensure that the busbars are insulated from each other and the distances are equal, thereby ensuring the electrical clearance and creepage distance, so as to prevent the generation of arcs under normal operating conditions or fault conditions, resulting in switch damage, circuit failure, and even fire and other safety accidents. Furthermore, the installation groove 11 is the same as the width of the busbar, thereby reducing the width of the fixing body 1 so that it does not exceed the width of the number of open poles, realizing the mixed assembly of single poles and multiple poles, and at the same time reducing the production cost. The fixing body 1 and the positioning plate can be fixed by the limiting unit to prevent relative movement.

[0027] As another specific embodiment, a limiting groove 12 is provided on one side of the fixing body 1, and a limiting convex portion 13 is provided on the other side of the fixing body 1. The fixing body 1 and the connecting member 3 can be positioned quickly and accurately during the assembly process, reducing assembly errors, and limiting movement between each other to ensure stability and reliability.

[0028] As another specific embodiment, the fixing member body 1 is provided with a connecting slot 14 penetrating along the left-right direction. The connecting slot 14 can be used to set the supporting member 2.

[0029] As another specific embodiment, both the left side and the right side of the fixing body 1 are provided with a slot unit 15. The slot units 15 matched on the left and right sides can be used to set the partition 44.

[0030] As another specific embodiment, a fixing hole 16 is provided in the middle of the fixing body 1. Correspondingly, a mounting hole is provided on the busbar, and bolts can pass through the mounting hole and the fixing hole 16 to fix the busbar in the mounting slot 11.

[0031] As another specific embodiment, a weight-reducing hole 18 is provided around the fixing hole 16. The weight-reducing hole 18 can reduce the deadweight of the fixing body 1, thereby ensuring the support of the overall structure and the stability of the connection, and can save material costs. In addition, the busbar can also dissipate heat through the weight-reducing hole 18, and the intermediate cooling can also be accelerated during injection molding. Furthermore, the weight-reducing hole 18 includes a plurality of weight-reducing holes 18, and the plurality of weight-reducing holes 18 are dispersed around the fixing hole 16.

[0032] As another specific embodiment, a positioning protrusion 17 is provided in the mounting groove 11. Correspondingly, a positioning hole is provided on the busbar. The positioning protrusion 17 can correspond to the positioning hole, and then the busbar is positioned first to prevent the busbar from moving, and at the same time, the fixing hole 16 and the mounting hole can be positioned to facilitate bolt installation.

[0033] A busbar fixing system for an air switch, such as Figure 3 As shown, it includes a plurality of busbar fixings for air switches as described above, which are arranged in parallel in the left-right direction. The plurality of busbar fixings can be spliced ​​to fix it in the electrical cabinet, thereby matching with a plurality of air switches.

[0034] As another specific embodiment, a plurality of the fixing body 1 is connected by a support 2. The support 2 can connect the plurality of fixing body 1 to prevent them from falling, and can also enhance the overall stability and reduce the chance of looseness and shaking. Furthermore, the support 2 is a channel steel. The cross-sectional shape of the channel steel determines that it has good stability and can reduce structural problems caused by distortion and deformation.

[0035] As another specific embodiment, a connector 3 is provided on the left side of the leftmost fixing body 1 and on the right side of the rightmost fixing body 1, and the connector 3 is also provided between at least two fixing bodies 1. The connector 3 can be used for the connection between the fixing bodies 1 and the connection between the fixing body 1 and the power distribution cabinet, and can adjust the spacing between the fixing bodies 1 to match the spacing between the air switches. Among them, the connector 3 includes a horizontally arranged support plate, and a positioning plate arranged vertically upward is provided in the middle of the support plate, and the fixing body 1 is arranged between the support plate and the positioning plate. Specifically, the support plate can support the fixing body 1, and the positioning plate can separate the fixing body 1 and connect the fixing body 1. Further, the angle between the positioning plate and the support plate is 90 degrees. As another specific embodiment, mounting holes are provided on both sides of the support plate. Since the connectors 3 arranged at the leftmost and rightmost ends also need to be connected to the power distribution cabinet, they can be connected to the parts in the power distribution cabinet through the mounting holes. In addition, the two sides of the support plate are also provided with limiting grooves 12 and limiting protrusions 13, so as to match the limiting grooves 12 and limiting protrusions 13 on the fixing body 1, thereby ensuring the connection between the connecting member 3 and the fixing body 1.

[0036] As another specific embodiment, a partition 44 is provided between adjacent fixing body 1. The partition 44 can separate the electrical gap between the two levels. Specifically, a partition 44 is inserted into adjacent card slot units 15. In addition, since a connector 3 is provided between some fixing body 1, a card slot unit 15 is also provided on one side of the connecting plate of the connector 3 so as to cooperate with the fixing body 1.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The present invention is extended to any new features or any new combination disclosed in this specification, and any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

[0038] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "vertical", "horizontal", "top", "bottom", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention 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 on the embodiments of the present invention.

Claims

1. A busbar fixing member for an air switch, characterized in that: The invention comprises a fixing body (1), wherein a mounting groove (11) which passes through the fixing body (1) from front to back and is used for mounting a busbar is provided on the top of the fixing body (1), and corresponding limiting units are provided on the left and right sides of the fixing body (1); a limiting groove (12) is provided on one side of the fixing body (1), and a limiting convex portion (13) is provided on the other side of the fixing body (1); a connecting card groove (14) which passes through in the left-right direction is provided on the fixing body (1); a card groove unit (15) is provided on the left and right sides of the fixing body (1); a fixing hole (16) is provided in the middle of the fixing body (1); and a positioning convex portion (17) is provided in the mounting groove (11).

2. A busbar fixing system for an air switch, characterized in that: It comprises a plurality of busbar fixing members for air switches as claimed in claim 1 which are arranged in sequence side by side along the left-right direction.

3. The busbar fixing system for an air switch according to claim 2, characterized in that: A plurality of the fixing member bodies (1) are connected to each other via a supporting member (2).

4. The busbar fixing system for an air switch according to claim 2, characterized in that: A connecting member (3) is provided on the left side of the leftmost fixing member body (1) and on the right side of the rightmost fixing member body (1), and the connecting member (3) is also provided between at least two of the fixing member bodies (1).

5. The busbar fixing system for an air switch according to claim 2, characterized in that: A partition plate (44) is provided between adjacent fixing member bodies (1).

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