Conductive busbar assembly for switchgear and switchgear

Abstract

The utility model provides a kind of for switch board's conducting bar assembly and switch board, wherein for switch board's conducting bar assembly, it is characterized by, including: one body (1), it has a connecting portion (11) in one end;A matching portion (2), it is used to connect the connecting portion (11), the matching portion (2) and the body (1) cooperation form the rounded end of conducting bar assembly.The conducting bar assembly formed by adopting split structure, it has rounded end, and the matching portion is easy to process, can reduce cost.

Description

Technical Field

[0001] This utility model relates to the field of power systems, and in particular to a conductive busbar assembly and a switch cabinet for use in switch cabinets. Background Technology

[0002] Switchgear is a piece of electrical equipment used in power systems for opening, closing, controlling, and protecting electrical appliances during power generation, transmission, distribution, and energy conversion. Copper busbars are commonly used conductive components in switchgear; as conductors, they carry current.

[0003] In the prior art, to avoid tip discharge, the right-angled part of the copper busbar, especially its end, is usually processed into an arc shape. Utility Model Content

[0004] In view of this, the present invention proposes a conductive busbar assembly for switchgear, comprising:

[0005] A body having a connecting part at one end;

[0006] A mating part for connecting the connecting part, the mating part engaging with the body to form a rounded end of the conductive busbar assembly.

[0007] The conductive busbar assembly, formed by a split structure, has rounded ends and the mating parts are easy to process, which can reduce costs.

[0008] Optionally, in the conductive bus assembly described above, the mating portion is detachably connected to the connecting portion. This facilitates subsequent maintenance and reduces costs.

[0009] According to the conductive bus assembly described above, optionally, the outer contour of the connecting portion is arc-shaped, and the mating portion has a U-shaped or C-shaped outer contour. The mating portion can wrap around the connecting portion, and the mating portion and the connecting portion are interference-fitted. This results in higher reliability.

[0010] According to the conductive bus assembly described above, optionally, each end of the mating portion has an inwardly extending protrusion, and each side of the connecting portion has a recess that mates with the protrusion, the protrusion being inserted into the recess. This enhances the strength of the interference fit.

[0011] Optionally, the mating part of the busbar assembly described above can be a casting. This facilitates the machining of the mating part.

[0012] According to the conductive busbar assembly described above, optionally, the outer contour of the connecting part is arc-shaped and at least one outer surface of the connecting part has a groove; the mating part is a shell and the mating part is U-shaped or C-shaped; at least one inner surface of the mating part has a protrusion facing inward; the mating part can be sleeved on the outside of the connecting part and the protrusion can be engaged in the groove. This provides good anti-detachment performance.

[0013] According to the conductive bus assembly described above, optionally, the material of the mating part is copper, steel or aluminum, and the material of the body is copper.

[0014] Optionally, the connection portion of the busbar assembly described above is formed by stamping. This processing method has low cost and is suitable for mass production. This invention also provides a switch cabinet including the busbar assembly described in any of the preceding claims.

[0015] Optionally, according to the switchgear described above, the switchgear is a gas-insulated switchgear, and the busbar assembly is located in the gas box of the gas-insulated switchgear. Attached Figure Description

[0016] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can more clearly understand the above and other features and advantages of the present invention, in which:

[0017] Figure 1 This is a schematic diagram of the structure of a conductive busbar assembly for a switch cabinet according to an embodiment of the present invention.

[0018] Figure 2 for Figure 1 A schematic diagram of its split structure.

[0019] Figure 3 This is a structural schematic diagram of a conductive busbar assembly for a switch cabinet according to another embodiment of the present invention.

[0020] Figure 4 for Figure 3 A schematic diagram of its split structure.

[0021] The accompanying figure is labeled as follows:

[0022] 1-Ontology

[0023] 11-Connecting part

[0024] 111-Depression

[0025] 112-groove

[0026] 2-Matching section

[0027] 21-Prominent part

[0028] 22-Protrusion

[0029] 3-Mounting holes

[0030] D-Installation Direction

[0031] L-axis Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the following embodiments are provided to further illustrate this utility model in detail. The nouns and pronouns referring to "person" in this patent application are not limited to specific genders.

[0033] This invention provides a conductive busbar assembly for use in switchgear, which is used to transmit current. This conductive busbar assembly can be used in any component of the switchgear, for example, in a gas chamber where electrical connections are required between components.

[0034] like Figure 1 The diagram shown is a structural schematic of a conductive busbar assembly for a switchgear according to an embodiment of the present invention. Figure 2 As shown, Figure 1 A schematic diagram of the split structure. (See attached diagram.) Figure 3 The diagram shown is a structural schematic of a conductive busbar assembly for a switchgear according to another embodiment of the present invention. Figure 4 As shown, Figure 3 A schematic diagram of its split structure.

[0035] The conductive busbar assembly for switchgear of this utility model includes a body 1 and a mating part 2.

[0036] The main body 1 has a connecting portion 11 at one end. The main body 1 can be any conductive material, such as a copper busbar. The connecting portion 11 is used to connect the mating portion 2. The structure of the connecting portion 11 can be arbitrary, as long as it can connect the mating portion 2. Here, "connection" means that the mating portion 2 can be assembled to the connecting portion 11, and there will be no relative displacement between the mating portion 2 and the connecting portion 11.

[0037] The mating part 2 is used to connect to the connecting part 11 mentioned above. The mating part 2 and the body 1 mate to form the rounded end of the busbar assembly. Here, "rounded end" means that after the connecting part 11 and the mating part 2 are combined, the end of the busbar assembly where the mating part 2 is located is smooth, with an arc-shaped outer contour and no sharp corners. This optimizes the electric field distribution and avoids point discharge. In terms of size, the width of the mating part 2 is the same as the width of the body 1, so that after the two are combined, the busbar assembly as a whole will not have any protruding parts.

[0038] As an example, the material of the mating part 2 can be copper, steel, or aluminum, or it can be a composite material with specific dielectric constant and mechanical strength, which can be selected according to actual needs. For example, if steel is used as the material of the mating part 2, it is not only cheaper but also more resistant to ablation.

[0039] The mating part 2 can be processed independently. For example, it can be formed by stamping, with its edges machined into a rounded outer contour. During assembly, the worker can assemble the mating part 2 to the connecting part 11 to form a conductive busbar assembly, which is then installed into the switch cabinet. This split structure eliminates the need to place the entire conductive busbar assembly on the processing table; only the smaller mating part 2 needs to be placed, facilitating high-precision and high-efficiency batch processing. The overall dimensions of the conductive busbar assembly can be consistent with those of existing copper busbars, allowing for connection without modifying other components.

[0040] The conductive busbar assembly formed by adopting a split structure has rounded ends and the mating part 2 is easy to process, which can reduce costs.

[0041] As an example, the mating part 2 is detachably connected to the connecting part 11. After the mating part 2 is assembled to the connecting part 11, it can also be detached from it. For example, if the end of the busbar assembly is bumped during the transportation of the switch cabinet or the busbar assembly, the bumped mating part 2 can be detached and replaced with another mating part 2. This avoids replacing the entire busbar assembly, facilitates subsequent maintenance, and reduces costs.

[0042] As an example, such as Figure 1 and Figure 2 As shown, the outer contour of the connecting part 11 is arc-shaped, and the mating part 2 has a U-shaped or C-shaped curved outer contour. The mating part 2 can wrap around the connecting part 11, and the mating part 2 and the connecting part 11 are press-fitted. Workers can... Figure 2 The mounting direction D shown assembles the mating part 2 into the connecting part 11. Due to the interference fit, the reliability is high. In one specific implementation, both ends of the mating part 2 have an inwardly extending protrusion 21, and both sides of the connecting part 11 have a recess 111. The recess 111 mates with the protrusion 21, and the protrusion 21 is inserted into the recess 111. The presence of this protrusion 21 increases the curved surface of the portion where the connecting part 11 and the mating part 2 are in contact, which enhances the strength of the interference fit.

[0043] As an example, mating part 2 is a casting. A casting indicates that mating part 2 is a solid part, which facilitates machining.

[0044] As another illustrative example, such as Figure 3 and Figure 4 As shown, the outer contour of the connecting part 11 is arc-shaped, and at least one side of the connecting part 11 has a groove 112. The mating part 2 is a shell, and the mating part 2 is U-shaped or C-shaped. The interior of the mating part 2 has a protrusion 22 that protrudes inward. The mating part 2 can be fitted onto the outside of the connecting part 11, and the protrusion 22 can be engaged in the groove 112. The mating part 2 is equivalent to a thin shell. In use, the operator can insert the connecting part 11 into the inner cavity of the mating part 2 along the axis L. When assembled, the protrusion 22 is engaged in the groove 112, preventing the mating part 2 from falling off the connecting part 11. Figure 3 and Figure 4 The diagram shows that each of the two sides of the connecting part 11 has a groove 112, and correspondingly, each of the two inner sides of the mating part 2 has a protrusion 22. Each protrusion 22 can be engaged in a corresponding groove 112, resulting in a secure fixation. This snap-fit ​​method is convenient to assemble and has good anti-detachment performance.

[0045] As an example, the connecting part 11 is formed by stamping. This processing method is low-cost and facilitates mass production. Since the mating part 2 can be processed independently and is small in size, the need for large processing equipment is reduced, which is conducive to realizing factory self-production and further reducing costs.

[0046] In addition, such as Figures 1 to 3 As shown, the main body 1 also has a mounting hole 3, which is used to mount the entire conductive busbar assembly onto a single component. This mounting hole 3 can be configured according to actual needs, for example... Figures 1 to 4 The square hole shown, or no mounting hole 3 is provided.

[0047] This utility model also provides a switch cabinet, which includes the busbar assembly of any of the foregoing embodiments. As an example, the switch cabinet is a gas-insulated switch cabinet, and the busbar assembly is located in the gas chamber of the gas-insulated switch cabinet. For gas-insulated switch cabinets, environmental considerations currently favor the use of environmentally friendly gases as insulating gases. To avoid tip discharge of components, it is especially necessary to avoid sharp corners on various components, particularly for gas-insulated switch cabinets using environmentally friendly gases as insulating gases. As an indispensable connecting component, the busbar assembly needs to avoid sharp corners; therefore, it is necessary to use a busbar assembly with rounded ends. Using the aforementioned busbar assembly can reduce costs while ensuring the reliability of the gas chamber.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A conductor bar assembly for switchgear, characterized in that, include: A body (1) has a connecting part (11) at one end; A mating part (2) is provided for connecting the connecting part (11), and the mating part (2) is provided for engaging with the body (1) to form the rounded end of the conductive bus assembly.

2. The busbar assembly according to claim 1, characterized in that, The mating part (2) is detachably connected to the connecting part (11).

3. The busbar assembly according to claim 1, characterized in that, The outer contour of the connecting part (11) is arc-shaped, and the mating part (2) has a U-shaped or C-shaped outer contour. The mating part (2) can wrap the connecting part (11), and the mating part (2) and the connecting part (11) are interference fit.

4. The conductive bus assembly according to claim 3, characterized in that, Both ends of the mating part (2) have a protrusion (21) extending inward, and both sides of the connecting part (11) have a recess (111) that mates with the protrusion (21). The protrusion (21) is used to insert into the recess (111).

5. The conductive busbar assembly according to claim 3, characterized in that, The mating part (2) is a casting.

6. The busbar assembly according to claim 1, characterized in that, The outer contour of the connecting part (11) is arc-shaped and at least one outer surface of the connecting part (11) has a groove (112). The mating part (2) is a shell and the mating part (2) is U-shaped or C-shaped. At least one inner surface of the mating part (2) has a protrusion (22) that protrudes inward. The mating part (2) can be fitted onto the outside of the connecting part (11) and the protrusion (22) can be engaged in the groove (112).

7. The busbar assembly according to any one of claims 1-6, characterized in that, The material of the mating part (2) is copper, steel or aluminum, and the material of the body (1) is copper.

8. The busbar assembly according to any one of claims 1-6, characterized in that, The connecting part (11) is formed by stamping.

9. A switch cabinet, characterized in that, The conductive busbar assembly includes any one of claims 1-8.

10. The switchgear according to claim 9, characterized in that, The switch cabinet is a gas-insulated switch cabinet, and the busbar assembly is located in the gas box of the gas-insulated switch cabinet.

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