A 35kV side expansion bus coupler

Abstract

The utility model discloses a 35kV side expansion bus coupler, including bus coupler bushing and conducting hardware, still be equipped with the mounting groove on bus coupler bushing bore wall, the mounting groove includes axial slot and circumferential groove, be equipped with the slider of size matching with mounting groove on conducting hardware, and conducting hardware passes through the slider and is installed to the relative bus coupler axial limit with the circumferential groove carding, the utility model discloses the side expansion bus coupler design with bus coupler bushing and conducting hardware detachable split structure to can realize the flexible selection of different length's conducting hardware according to the specification parameter of spare cabinet and main cabinet body and the change of placement position to can satisfy the bus conduction, relative to prior art, the side expansion bus coupler of this embodiment can on the basis of the existing technology guarantee circumferential surface contact, maximum selection longer conducting hardware realizes to let the connecting hardware also can be fully abutted with the end of conducting hardware to can fully promote electric connection area.

Description

Technical Field

[0001] This utility model relates to the technical field of side-expanding bus couplers, specifically to a 35kV side-expanding bus coupler. Background Technology

[0002] High-voltage fully insulated gas-filled switchgear refers to a switchgear that connects the main switches, such as load switches, load switches-fuse combination electrical appliances, and disconnect switches-vacuum circuit breakers, to the cable supports at the incoming and outgoing ends via primary copper busbars. These switches are then sealed within a stainless steel gas box filled with a certain capacity of circulating gas, forming various functional units. It features full sealing, full modularity, miniaturization, and the ability to be arbitrarily combined and expanded. It provides compact, safe, reliable, high-performance, and truly maintenance-free high-voltage switchgear, widely used in urban and rural cable renovation, substations, wind power generation, steel and petrochemical industries, highway docks, and other industrial enterprises, as well as in municipal construction, commercial buildings, and residential communities.

[0003] The existing expansion schemes for gas-insulated switchgear mainly rely on top expansion or side expansion components. When using side expansion components, the deviation requirements for the bushings and bus couplers of each switchgear are relatively high. The existing bushings and bus couplers are set with fixed dimensions, and there are often gaps between the conductive hardware after they come into contact. Excessive gaps result in insufficient connection between the conductive hardware, affecting the electrical conduction effect. However, in reality, the placement of the standby switchgear and the possible inconsistencies in the thickness of the switchgear panels can all affect the contact gap. Therefore, the conductive hardware is often connected circumferentially outward, and it is difficult to ensure that the ends are in contact. This is especially true for high-voltage side expansion components, where the presence of gaps has a more serious impact on the conductive hardware. Utility Model Content

[0004] In view of the prior art, the purpose of this utility model is to provide a side-expanded bus coupler structure that allows for the replacement and use of conductive fittings inside the bus coupler, adapts to the installation length required by actual needs, and achieves full conductive contact.

[0005] The technical solution adopted by this utility model is as follows: a 35kV side expansion bus coupler, including a bus coupler bushing and conductive fittings. The inner wall of the bus coupler bushing is also provided with an installation groove, which includes an axial groove and a circumferential groove. The conductive fittings are provided with a slider that matches the size of the installation groove. The conductive fittings are installed by the slider engaging with the circumferential groove and being axially limited relative to the bus coupler bushing.

[0006] As a further feature of the above solution, the mounting slot is provided with two sets of mounting slots mirrored from the center of the bus coupler sleeve. The conductive fittings include a left sleeve and a right sleeve. Both the left sleeve and the right sleeve are provided with sliders and are respectively provided with a set of mounting slots.

[0007] As a further feature of the above scheme, the inner wall of the bus coupler sleeve is also provided with a limiting groove and a limiting block that matches the limiting groove. One side of the mounting groove and the limiting groove opens to both sides of the bus coupler sleeve, and the axial groove is respectively set through the circumferential groove of the mounting groove and the limiting groove.

[0008] As a further provision of the above scheme, the bus bushing includes tapered sleeves at both ends for engaging with the side expansion bushing, the conductive fitting extends into the side expansion bushing and abuts against the connecting fitting, and the end and outer periphery of the conductive fitting are in contact with the connecting fitting for conduction.

[0009] As a further feature of the above scheme, a grounding ring is provided on the outside of the bus bushing. The grounding ring has a slot and a grounding buckle that matches the slot. The grounding buckle also has a T-shaped part and a paint-piercing needle on the T-shaped part.

[0010] Beneficial effects: The side-expanding bus coupler of this utility model features a detachable split structure of the bus coupler sleeve and conductive fittings. This allows for flexible selection of conductive fittings of different lengths to ensure busbar continuity, depending on the specifications and placement of the standby cabinet and the main cabinet. Compared to existing technologies, the side-expanding bus coupler of this embodiment can maximize the selection of longer conductive fittings while ensuring circumferential surface contact, thus ensuring that the connecting fittings can fully abut against the ends of the conductive fittings and significantly increasing the electrical connection area. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the side expansion bus coupler of this utility model.

[0012] Figure 2 This is a cross-sectional schematic diagram of the side expansion bus coupler of Embodiment 1 of this utility model.

[0013] Figure 3 This is a schematic diagram of the structure of the bus tie sleeve and conductive fittings in Embodiment 2 of this utility model.

[0014] Figure 4 This is a schematic diagram of the side expansion bus connector in use according to Embodiment 2 of this utility model.

[0015] Figure 5 This is a schematic diagram of the structure of the bus tie sleeve and conductive hardware in embodiment 3 of this utility model.

[0016] Figure 6 This is a schematic diagram of the side expansion bus connector in use according to embodiment 3 of this utility model.

[0017] Figure 7 This is a schematic diagram of the structure of the bus tie sleeve and conductive fittings in embodiment 4 of this utility model.

[0018] Figure 8This is a schematic diagram of the side expansion bus connector in use according to embodiment 4 of this utility model.

[0019] Reference numerals: 1. Bus tie bushing; 2. Conductive fitting; 21. Left side bushing; 22. Right side bushing; 3. Side expansion bushing; 4. Conical sleeve; 5. Connecting fitting; 6. Mounting groove; 61. Axial groove; 62. Circumferential groove; 7. Slider; 8. Limiting groove; 9. Grounding ring; 91. Slot; 92. Grounding buckle; 93. T-shaped part; 94. Paint-breaking needle; 10. Limiting block. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other.

[0021] Example 1

[0022] like Figure 1 and Figure 2 The present invention, embodiment 1, provides a 35kV side-expansion bus coupler. The bus coupler of embodiment 1 includes a bus coupler sleeve 1 and a conductive fitting 2 that is inserted into the bus coupler sleeve 1. In this embodiment, the inner wall of the bus coupler sleeve 1 is also provided with an installation groove 6, which includes an axial groove 61 and a circumferential groove 62. The conductive fitting 2 is provided with a slider 7 that matches the size of the installation groove 6. The conductive fitting 2 is installed by the slider 7 being engaged in the circumferential groove 62 and axially limited relative to the bus coupler sleeve 1.

[0023] As a further provision of the above scheme, the bus sleeve 1 includes tapered sleeves 4 at both ends for cooperating with the side expansion sleeve 3, the conductive fitting 2 extends into the side expansion sleeve 3 and abuts against the connecting fitting 5, and the end and outer periphery of the conductive fitting 2 are in contact with the connecting fitting 5 for conduction.

[0024] Example 2

[0025] like Figure 3 and Figure 4 The outer side of the bus coupler sleeve 1 is also provided with a grounding ring 9. The grounding ring 9 is provided with a slot 91 and a grounding buckle 92 that matches the slot 91. The grounding buckle 92 is also provided with a T-shaped part 93. The T-shaped part 93 is provided with a paint-breaking needle 94. When in use, the grounding ring 9 is put into the bus coupler sleeve 1 from the end or the C-shaped grounding buckle 92 is directly pried open and inserted into the slot 91. The T-shaped part 93 extends to both sides. Under the pressure of the cabinet on both sides, the paint-breaking needle 94 on it is used to break the paint on the surface of the cabinet panel.

[0026] Example 3

[0027] refer to Figure 5 and Figure 6 As shown, in this embodiment, the inner wall of the female coupling sleeve 1 is also provided with a limiting groove 8 and a limiting block 10 that matches the limiting groove 8. The mounting groove 6 and the limiting groove 8 open to both sides of the female coupling sleeve 1. The axial groove 61 is respectively provided through the circumferential groove 62 of the mounting groove 6 and the limiting groove 8. With the above-described structural arrangement, in use, this embodiment 3, as Figure 6 and Figure 5 As shown, the conductive fitting 2 with slider 7 is slid into the axial groove 61. After passing through the axial groove 61 and entering the circumferential groove 62 on the other side, the conductive fitting 2 is rotated relative to the female bushing 1. At this time, the limiting block 10 is just stuck in the limiting groove 8. The limiting groove 8 and the mounting groove 6 are clamped by the circumferentially non-corresponding limiting block 10 and slider 7 of the conductive fitting 2, thereby realizing the installation and use of the conductive fitting 2 relative to the female bushing 1.

[0028] Example 4

[0029] like Figure 7 and Figure 8 As shown, the mounting slot 6 in this embodiment has two sets mirror images of the center of the female coupling sleeve 1. The conductive fitting 2 includes a left sleeve 21 and a right sleeve 22. Both the left sleeve 21 and the right sleeve 22 are equipped with sliders 7 and are respectively set in a set of mounting slots 6. In use, the operator can select different lengths of the left sleeve 21 and right sleeve 22 after measuring the connection distance according to actual needs. Figure 7 and Figure 8 The selection shown is for use in accordance with, but not limited to, the connection distance between the two ends of the bus coupler caused by the thickness of the cabinet panel.

[0030] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A 35kV side-expanded bus coupler, characterized in that: The device includes a female bushing (1) and a conductive fitting (2). The inner wall of the female bushing (1) is also provided with an installation groove (6). The installation groove (6) includes an axial groove (61) and a circumferential groove (62). The conductive fitting (2) is provided with a slider (7) that matches the size of the installation groove (6). The conductive fitting (2) is axially limited and installed relative to the female bushing (1) by the slider (7) engaging the circumferential groove (62).

2. A 35kV side-expanded bus coupler according to claim 1, characterized in that: The mounting slot (6) is provided with two sets of mirror images of the center of the female coupling sleeve (1). The conductive fitting (2) includes a left sleeve (21) and a right sleeve (22). The left sleeve (21) and the right sleeve (22) are each provided with a slider (7) and are respectively set with a set of mounting slots (6).

3. A 35kV side-expanded bus coupler according to claim 1, characterized in that: The inner wall of the female bushing (1) is also provided with a limiting groove (8) and a limiting block (10) that matches the limiting groove (8). The mounting groove (6) and the limiting groove (8) are open to both sides of the female bushing (1). The axial groove (61) is respectively set through the circumferential groove (62) and the limiting groove (8) of the mounting groove (6).

4. A 35kV side-expanded bus coupler according to claim 1, characterized in that: The female bushing (1) includes tapered sleeves (4) at both ends for engaging with the side expansion bushing (3). The conductive fitting (2) extends into the side expansion bushing (3) and abuts against the connecting fitting (5). The end and outer periphery of the conductive fitting (2) are in contact with the connecting fitting (5) and conduct electricity.

5. A 35kV side-expanded bus coupler according to claim 1, characterized in that: The outer side of the bus bushing (1) is also provided with a grounding ring (9), the grounding ring (9) is provided with a slot (91), and a grounding buckle (92) that matches the slot (91) is also provided. The grounding buckle (92) is also provided with a T-shaped part (93), and the T-shaped part (93) is provided with a paint-piercing needle (94).

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