Mutual inductor cabinet

Abstract

The utility model relates to a mutual inductor cabinet. The technical problem to be solved by the utility model is to provide the mutual inductor cabinet. According to the technical scheme, the transformer cabinet side plate comprises a transformer cabinet side plate and a bus bar insulating cylinder assembly, the bus bar insulating cylinder assembly comprises a bus bar insulating cylinder, an inner connecting plate and an outer connecting plate, and the bus bar insulating cylinder comprises an insulating cylinder butt joint part, an outer isolation sleeve part and an inner isolation sleeve part. The transformer cabinet side plate comprises an insulating cylinder butt joint part, the middle part of the insulating cylinder butt joint part is provided with a bus bar jack, four corners of the insulating cylinder butt joint part are provided with insulating cylinder mounting holes, the transformer cabinet side plate comprises a side plate main body, and the side plate main body is provided with a side plate first positioning hole, a side plate second positioning hole and a side plate third positioning hole. Compared with the prior art, the bus bar insulating cylinder has the advantages that the inner connecting plate and the outer connecting plate have dual functions, so that the three bus bar insulating cylinders are kept in linkage after being mounted, the tightness and the connecting strength among the three bus bar insulating cylinders are greatly enhanced, looseness is effectively prevented, and the overall safety of a product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinets, in particular to a transformer cabinet. Background Art

[0002] Ring main unit refers to an electrical device that installs a group of high-voltage switchgear in a steel plate metal cabinet or makes it into an assembled interval ring main unit. As one of the ring main units, the transformer cabinet usually uses SF6 gas, N2 gas or its mixed gas as the insulating medium. It has the advantages of small size, high reliability and good safety, and is widely used in the field of medium voltage power distribution. The voltage transformer is the core equipment of the voltage transformer cabinet, which has the functions of measurement, power supply and protection. In order to ensure the stability and safety of the busbar when it is connected and exported, the existing transformer cabinet is equipped with a busbar insulation cylinder at the busbar joint for isolation. However, the busbar insulation cylinders between each busbar are installed separately on the cabinet, without correlation, and the connection strength is poor. With long-term use or due to vibration or impact during transportation, the busbar insulation cylinder is easy to become loose, resulting in safety hazards when the busbar is connected, so further improvement is needed. Utility Model Content

[0003] In order to solve the above problems, the technical problem to be solved by the utility model is to provide a mutual inductor cabinet.

[0004] The technical solution adopted by the transformer cabinet of the utility model: includes a transformer cabinet side panel and a busbar insulating tube assembly arranged on the transformer cabinet side panel, characterized in that the busbar insulating tube assembly includes a busbar insulating tube, an inner connecting plate and an outer connecting plate, the busbar insulating tube includes an insulating tube docking part, an outer isolating sleeve and an inner isolating sleeve arranged at both ends of the insulating tube docking part, a busbar plug hole for the busbar to be inserted is provided in the middle of the insulating tube docking part, and insulating tube mounting holes are provided on the four corners of the insulating tube docking part, the transformer cabinet side panel includes a side panel body, a side panel first positioning hole, a side panel second positioning hole and a side panel third positioning hole for limiting the outer isolating sleeve are provided on the side panel body, the side panel second positioning hole is horizontally spaced apart from the side panel first positioning hole, the side panel third positioning hole is vertically spaced apart from the side panel first positioning hole, and the side panel body is provided with an insulating tube fixing hole corresponding to the insulating tube mounting hole;

[0005] The inner connecting plate is provided with an inner connecting plate docking hole, the insulating tube docking part is provided with a docking part limiting groove for sleeve-limiting the inner connecting plate docking hole, the inner connecting plate is arranged between the side plate body and the insulating tube docking part, and the outer connecting plate is provided with an outer connecting plate docking hole for sleeve-fitting on the inner isolation sleeve.

[0006] A side plate communicating opening is arranged between the second positioning hole of the side plate and the first positioning hole of the side plate, and an inner connecting plate hanging block for hanging on the side plate communicating opening is arranged on the inner connecting plate.

[0007] Insulating tube positioning columns are provided at four corners of the insulating tube docking portion close to the inner isolating sleeve, the insulating tube mounting holes are provided in the insulating tube positioning columns, and the outer connecting plate is provided with outer connecting plate positioning holes corresponding to the insulating tube positioning columns.

[0008] The upper end of the side plate body is vertically bent inward to form an upper side plate portion, and the upper end of the outer connecting plate is extended and bent inward to form an outer connecting plate mounting portion corresponding to the upper side plate portion.

[0009] The outer connecting plate mounting portion is provided with an outer connecting plate fixing hole for fixing the outer connecting plate, and the outer connecting plate fixing hole is a waist-shaped hole.

[0010] The end of the outer connecting plate is vertically bent to form an outer connecting plate reinforcement portion, and the end of the inner connecting plate is provided with an inner connecting plate guide recess corresponding to the outer connecting plate reinforcement portion.

[0011] The outer connecting plate and the inner connecting plate are formed by integral stamping and bending.

[0012] The advantages of the transformer cabinet of the utility model are: the dual functions of the inner connecting plate and the outer connecting plate enable the three busbar insulating cylinders to maintain linkage after installation and greatly enhance the tightness and connection strength between the three, effectively prevent loosening, and improve the overall safety of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a structural schematic diagram of the transformer cabinet of the utility model;

[0015] Figure 2 It is an exploded view of the busbar insulation tube assembly of the utility model;

[0016] Figure 3 This is a structural schematic diagram of the busbar insulation tube of the utility model;

[0017] Figure 4 This is another structural schematic diagram of the busbar insulation tube of the utility model;

[0018] Figure 5 It is a structural schematic diagram of the side plate of the transformer cabinet of the utility model;

[0019] Figure 6 It is a structural schematic diagram of the inner connecting plate of the utility model;

[0020] Figure 7 It is a structural schematic diagram of the external connecting plate of the utility model. DETAILED DESCRIPTION

[0021] like Figure 1-7 As shown, the transformer cabinet involved in the utility model includes a transformer cabinet side plate 1 and a busbar insulating cylinder assembly 2 arranged on the transformer cabinet side plate 1, the busbar insulating cylinder assembly 2 includes a busbar insulating cylinder 4, an inner connecting plate 5 and an outer connecting plate 6, the busbar insulating cylinder 4 includes an insulating cylinder docking portion 8, an outer insulating sleeve 7 and an inner insulating sleeve 9 arranged at both ends of the insulating cylinder docking portion 8, a busbar plug hole 10 for the busbar to pass through is provided in the middle of the insulating cylinder docking portion 8, and insulating cylinder mounting holes 11 are provided on the four corners of the insulating cylinder docking portion 8, the transformer cabinet side plate 1 includes a side plate body 14, and the side plate body 14 is provided with a first side plate positioning hole 16, a second side plate positioning hole 17 and a third side plate positioning hole 18 for limiting the outer insulating sleeve 7, and the second side plate positioning hole 17 is connected to the first side plate The positioning holes 16 are arranged horizontally at intervals, the third positioning holes 18 of the side plate are arranged vertically at intervals with the first positioning holes 16 of the side plate, and the side plate body 14 is provided with an insulating tube fixing hole 13 corresponding to the insulating tube mounting hole 11; the inner connecting plate 5 is provided with an inner connecting plate docking hole 21, and the insulating tube docking portion 8 is provided with a docking portion limiting groove 12 for sleeve limiting of the inner connecting plate docking hole 21, the inner connecting plate 5 is arranged between the side plate body 14 and the insulating tube docking portion 8, and the outer connecting plate 6 is provided with an outer connecting plate docking hole 23 for sleeved on the inner isolation sleeve 9. The inner connecting plate 5 and the outer connecting plate 6 have dual functions, so that the three busbar insulating tubes maintain linkage after installation and greatly enhance the tightness and connection strength between the three, effectively prevent loosening, and improve the overall safety of the product.

[0022] A side panel connecting opening 19 is provided between the second positioning hole 17 of the side panel and the first positioning hole 16 of the side panel, and an inner connecting plate hanging block 24 for hanging on the side panel connecting opening 19 is provided on the inner connecting plate 5. The inner connecting plate 5 is firmly connected to the side panel 1 of the transformer cabinet, which can further improve the connection strength between the busbar insulating tube 4 and the side panel 1 of the transformer cabinet.

[0023] Insulating tube positioning columns 25 are provided on the four corners of the insulating tube docking portion 8 close to the inner isolation sleeve 9, and the insulating tube mounting holes 11 are provided in the insulating tube positioning columns 25. The outer connecting plate 6 is provided with outer connecting plate positioning holes 26 corresponding to the insulating tube positioning columns 25, so that the positioning is accurate and not easy to shake after docking.

[0024] The upper end of the side panel body 14 is bent vertically inward to form an upper side panel portion 15, and the upper end of the external connection plate 6 is extended and bent inward to form an external connection plate mounting portion 28 corresponding to the upper side panel 15. The external connection plate 6 is connected to the transformer cabinet side panel 1 to further improve the connection tightness between the busbar insulation tube 4 and the transformer cabinet side panel 1, and effectively reduce the loosening of the busbar insulation tube 4 caused by vibration and impact.

[0025] The outer connecting plate mounting portion 28 is provided with an outer connecting plate fixing hole 29 for fixing the outer connecting plate 6 . The outer connecting plate fixing hole 29 is a waist-shaped hole, and the mounting position can be flexibly adjusted according to needs.

[0026] The end of the outer connecting plate 6 is vertically bent to form an outer connecting plate reinforcement portion 30, and the end of the inner connecting plate 5 is provided with an inner connecting plate guide recess 31 corresponding to the outer connecting plate reinforcement portion 30, so as to further enhance the linkage.

[0027] The outer connecting plate 6 and the inner connecting plate 5 are integrally formed by stamping and bending, which is convenient for processing.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A transformer cabinet, comprising a transformer cabinet side plate (1) and a busbar insulation cylinder assembly (2) arranged on the transformer cabinet side plate (1), characterized in that: The busbar insulation tube assembly (2) comprises a busbar insulation tube (4), an inner connection plate (5) and an outer connection plate (6); the busbar insulation tube (4) comprises an insulation tube docking portion (8), an outer isolation sleeve (7) and an inner isolation sleeve (9) arranged at both ends of the insulation tube docking portion (8); a busbar insertion hole (10) for the busbar to be inserted is arranged in the middle of the insulation tube docking portion (8); insulation tube mounting holes (11) are arranged at four corners of the insulation tube docking portion (8); the transformer cabinet side plate (1) comprises a side plate body (14), the side plate body (14) is provided with a first side plate positioning hole (16), a second side plate positioning hole (17) and a third side plate positioning hole (18) for limiting the outer isolation sleeve (7), the second side plate positioning hole (17) and the first side plate positioning hole (16) are arranged horizontally at intervals, the third side plate positioning hole (18) and the first side plate positioning hole (16) are arranged vertically at intervals, and the side plate body (14) is provided with an insulation tube fixing hole (13) corresponding to the insulation tube mounting hole (11); The inner connecting plate (5) is provided with an inner connecting plate docking hole (21), the insulating tube docking portion (8) is provided with a docking portion limiting groove (12) for sleeve-limiting the inner connecting plate docking hole (21), the inner connecting plate (5) is arranged between the side plate body (14) and the insulating tube docking portion (8), and the outer connecting plate (6) is provided with an outer connecting plate docking hole (23) for sleeve-limiting the inner insulating sleeve portion (9).

2. The transformer cabinet according to claim 1, characterized in that: A side plate connecting opening (19) is provided between the second positioning hole (17) of the side plate and the first positioning hole (16) of the side plate, and an inner connecting plate hanging block (24) for hanging on the side plate connecting opening (19) is provided on the inner connecting plate (5).

3. The transformer cabinet according to claim 1, characterized in that: Insulating tube positioning columns (25) are provided at four corners of the insulating tube docking portion (8) on one side close to the inner insulating sleeve portion (9), the insulating tube mounting holes (11) are provided in the insulating tube positioning columns (25), and the outer connecting plate (6) is provided with outer connecting plate positioning holes (26) corresponding to the insulating tube positioning columns (25).

4. The transformer cabinet according to claim 1, characterized in that: The upper end of the side plate body (14) is vertically bent inwards to form a side plate upper portion (15), and the upper end of the outer connecting plate (6) is extended and bent inwards to form an outer connecting plate mounting portion (28) corresponding to the side plate upper portion (15).

5. The transformer cabinet according to claim 4, characterized in that: The outer connecting plate mounting portion (28) is provided with an outer connecting plate fixing hole (29) for fixing the outer connecting plate (6), and the outer connecting plate fixing hole (29) is a waist-shaped hole.

6. The transformer cabinet according to claim 1, characterized in that: The end of the outer connecting plate (6) is vertically bent to form an outer connecting plate reinforcement portion (30), and the end of the inner connecting plate (5) is provided with an inner connecting plate guide recess (31) corresponding to the outer connecting plate reinforcement portion (30).

7. The transformer cabinet according to claim 1, characterized in that: The outer connecting plate (6) and the inner connecting plate (5) are both integrally formed by stamping and bending.

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