CN219677028U - Connecting device for high-voltage side cable connection of oil immersed transformer - Google Patents
Connecting device for high-voltage side cable connection of oil immersed transformer Download PDFInfo
- Publication number
- CN219677028U CN219677028U CN202320580165.5U CN202320580165U CN219677028U CN 219677028 U CN219677028 U CN 219677028U CN 202320580165 U CN202320580165 U CN 202320580165U CN 219677028 U CN219677028 U CN 219677028U
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- Prior art keywords
- cable
- cavity
- voltage side
- connection
- oil
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 20
- 229910052802 copper Inorganic materials 0.000 claims description 18
- 239000010949 copper Substances 0.000 claims description 18
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 239000004945 silicone rubber Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000009413 insulation Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 6
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Landscapes
- Housings And Mounting Of Transformers (AREA)
Abstract
The utility model provides a connecting device for high-voltage side cable connection of an oil immersed transformer, and relates to the technical field of transformer manufacturing. The cable comprises a shell, a connecting piece, a cable side terminal and a high-voltage side stud; the two ends of the shell are respectively provided with a cable side interface and a high-voltage side interface, a cavity is arranged in the shell, the connecting piece is positioned in the cavity, and the cable side terminal enters the cavity through the cable side interface; the high-pressure side stud enters the cavity through the high-pressure side interface. The connecting device enables the cable to be connected and separated from the transformer more quickly, the cable connection part is not exposed, the sealing performance and the insulation performance are good, electric shock accidents are avoided, dust and water can be prevented, and a certain protection effect is achieved.
Description
Technical Field
The utility model relates to the technical field of transformer manufacturing, in particular to a connecting device for high-voltage side cable wiring of an oil immersed transformer.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Before the oil immersed transformer is used, a copper wire nose is required to be manufactured by a cable connected with the transformer, and the copper wire nose is connected with a high-low voltage stud of the transformer, so that the connection is inconvenient and quick. Thus, a series of wiring devices for wiring cables have been developed.
However, the inventor finds that the existing connecting device has complex and various structures, is not suitable for connecting the stud on the high-voltage side of the transformer with the cable, and in addition, some connecting devices have complicated connecting and separating processes for ensuring the firmness of the connecting device, so that the connection and the separation of the cable and the high-voltage side of the transformer cannot be realized quickly. The existing connecting device has the defects of poor sealing property and poor insulation property, and brings serious potential safety hazard for power operation.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model provides the connecting device for the high-voltage side cable connection of the oil-immersed transformer, so that the cable is connected and separated with the transformer more quickly, and meanwhile, the cable connection part is not exposed, so that the sealing property and the insulating property are good, electric shock accidents are avoided, dust and water can be prevented, and a certain protection effect is achieved.
The utility model adopts the following technical scheme:
a connection device for high-side cable connections of an oil-immersed transformer, comprising:
the cable comprises a shell, a connecting piece, a cable side terminal and a high-voltage side stud; the two ends of the shell are respectively provided with a cable side interface and a high-voltage side interface, a cavity is arranged in the shell, the connecting piece is positioned in the cavity, and the cable side terminal enters the cavity through the cable side interface; the high-pressure side stud enters the cavity through the high-pressure side interface; after the cable side terminal and the high-voltage side stud enter the cavity, the cable side terminal and the high-voltage side stud are respectively contacted with two ends of the connecting piece.
Further, the cavity comprises an outer cavity and an inner cavity, and two ends of the inner cavity are respectively communicated with one outer cavity; the connector is positioned in the inner cavity.
Still further, the outer lumen diameter is smaller than the inner lumen diameter.
Further, the shell is made of insulating silicon rubber.
Further, the connecting piece is a copper connecting piece.
Further, the two ends of the connecting piece extend to the openings at the two ends of the shell.
Further, the whole shell is L-shaped.
Furthermore, when the whole shell is L-shaped, the cavity is L-shaped, the connecting piece is L-shaped correspondingly, and the turning point position of the connecting piece is the same as the turning point position of the cavity.
Further, the whole shell is in a straight shape.
Furthermore, when the whole shell is in a shape like a Chinese character 'yi', the cavity is arranged in a shape like a Chinese character 'yi', and the connecting piece is correspondingly in a shape like a Chinese character 'yi'.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model discloses a connecting device for high-voltage side cable wiring of an oil immersed transformer, which is characterized in that a copper terminal on the cable side of the transformer and a stud on the high-voltage side of the transformer are improved, so that the tail end of the copper terminal can extend into a connecting device port with elasticity, and the copper terminal can be tightly and firmly kept by pressure, so that the cable can be connected and separated from the transformer more quickly without a complex dismounting structure, and meanwhile, the connecting position of the cable is not exposed, the sealing performance and the insulating performance are good, the electric shock accident is avoided, the dust and water can be prevented, and a certain protection effect is achieved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.
Fig. 1 is a schematic diagram of the whole structure of a connection device for a high-voltage side cable connection of an oil immersed transformer;
fig. 2 is a schematic diagram of the connection of the connecting device of the present utility model and the high-voltage side bushing of the transformer.
In the figure: 1. the transformer comprises a connecting piece, a shell, a cable side terminal, a high-voltage side stud and a transformer high-voltage side sleeve.
Detailed Description
The utility model will be further described with reference to the drawings and examples.
The terms "mounted," "connected," "secured," and the like are to be construed broadly and refer to either a fixed connection, a removable connection, or an integral body, for example; the terms "mechanically coupled" and "directly coupled" may be used interchangeably to refer to either a mechanical coupling, an indirect coupling via an intermediary, an internal coupling of two elements, or an interaction of two elements, as would be understood by one of ordinary skill in the art, and the terms are to be understood in the specific sense of the present utility model as appropriate.
Examples
The utility model provides a connecting device for high-voltage side cable connection of an oil immersed transformer on the basis of the prior art for solving the technical problems in the background art, as shown in fig. 1, comprising:
a housing 2, a connector 1, a cable-side terminal 3 and a transformer high-voltage-side stud 4; the two ends of the shell 2 are respectively provided with a cable side interface and a high-voltage side interface, a cavity is arranged in the shell 2, the connecting piece 1 is positioned in the cavity, the cable side terminal 3 is a cable side copper terminal, and the cable side copper terminal enters the cavity through the cable side interface; the high-voltage side stud 4 enters the cavity through the high-voltage side interface, and the cable side terminal 3 and the high-voltage side stud 4 respectively come into close contact with the two ends of the connecting piece 1 after entering the cavity. In order to save copper materials and reduce the overall weight, the inside of the connecting piece is hollow. Because the voltage of the high-voltage side of the transformer is high and the current is low, the connecting piece is hollow, so that stable connection can be realized, and a person skilled in the art can properly adjust the hollow degree according to the current-carrying capacity requirement.
The cavity comprises an outer cavity and an inner cavity, and two ends of the inner cavity are respectively communicated with one outer cavity; the connecting piece is arranged in the inner cavity, and two ends of the connecting piece are close to the thin cavity, so that connection is facilitated. The diameter of the outer cavity is 25mm less than that of the inner cavity by 45mm. The junction of the inner cavity and the outer cavity is provided with a transition section which is matched with the end of the copper terminal on the cable side and the end of the stud on the high-voltage side in shape.
The connecting device further comprises an improved cable side terminal 3 and a transformer high-voltage side stud 4, the cable side terminal 3 and the transformer high-voltage side stud 4 are identical in shape and comprise a round head and a connecting rod, the diameter of the connecting rod is smaller than that of the end head, and one end of the end head is connected with one end of the connecting rod.
The diameter of the end is slightly smaller than the diameter of the inner cavity but larger than the diameter of the outer cavity, so that the end can be clamped with the outer cavity at the transition section, the end cannot easily fall off, and the diameter of the connecting rod is slightly smaller than the diameter of the outer cavity, so that the inner cavity and the outer cavity can generate certain pressure on the copper terminal at the cable side, and the compactness of the copper terminal is ensured.
In this embodiment, the housing 2 is made of insulating silicone rubber. The connecting piece is a copper connecting piece. The two ends of the connecting piece extend to the openings at the two ends of the shell. The copper connecting piece and the cavity made of the insulating silicon rubber material are connected together through injection molding integrated forming, and the cavity is L-shaped or I-shaped.
The connecting device is used for connecting the high-voltage side sleeve 5 of the transformer with the cable, takes an L shape as an example in the connecting mode, and can realize quick connection of the high-voltage side of the transformer with the cable as shown in fig. 2. The port of the shell has certain elasticity, is convenient for the plug-in connection of the high-voltage side stud of the transformer and the copper terminal at the cable side, and keeps certain pressure, so that the connection is tight and reliable. Therefore, the working principle of the utility model is as follows: the improved copper terminal on the cable side is pressed and inserted into the cable side interface by force, the end of the improved copper terminal is contacted with the connecting piece and then is stopped to be inserted, the improved stud on the high-voltage side is pressed and inserted into the high-voltage side interface by force, the end of the improved stud on the high-voltage side is contacted with the connecting piece and then is stopped to be inserted, and the connection is completed. The silica gel material has insulativity and high elasticity, and after the high-voltage side stud and the cable side copper terminal are inserted, the copper terminal and the connecting piece are stably connected under elastic pressure. In fact, in practical application scenarios, the high-voltage side cable should be fixed, so the connecting piece only needs to keep contact with the two side ends, and stable connection can be completed by using elastic pressure.
In order to facilitate the connection requirements of different places, the utility model can be manufactured into a shape like a Chinese character ' Yi ' or an L '. From the view of the transformer use site, the L-shaped wiring mode is most widely applied, the cable wiring is convenient, and a few special requirement scenes can adopt a straight shape.
(1) The whole shell is L-shaped
When the whole shell is L-shaped, the cavity is L-shaped, the connecting piece is L-shaped correspondingly, and the turning point position of the connecting piece is the same as the turning point position of the cavity. The current is low due to the high voltage on the high side of the transformer. The cable side end may be affected by the tension or gravity of the cable, so the length of the cavity design is longer at the cable side end than at the high voltage side end.
(2) The whole shell is in a straight shape
When the whole shell is in a shape like a Chinese character 'yi', the cavity is arranged in a shape like a Chinese character 'yi', and the connecting piece is correspondingly in a shape like a Chinese character 'yi'. The straight shape is communicated with the L-shaped principle, and the stability of connection is kept through the high-elasticity extrusion terminal of the silica gel.
It should be noted that, the foregoing description is only a preferred embodiment of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiment, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, and any modifications, equivalents, improvements or changes thereof may be made without departing from the spirit and principle of the present utility model.
Claims (10)
1. A connection device for high-voltage side cable connection of an oil-immersed transformer, comprising:
the cable comprises a shell, a connecting piece, a cable side terminal and a high-voltage side stud; the two ends of the shell are respectively provided with a cable side interface and a high-voltage side interface, a cavity is arranged in the shell, the connecting piece is positioned in the cavity, and the cable side terminal enters the cavity through the cable side interface; the high-pressure side stud enters the cavity through the high-pressure side interface; after the cable side terminal and the high-voltage side stud enter the cavity, the cable side terminal and the high-voltage side stud are respectively contacted with two ends of the connecting piece.
2. The connection device for high-voltage side cable connection of oil-immersed transformer according to claim 1, wherein the cavity comprises an outer cavity and an inner cavity, and two ends of the inner cavity are respectively communicated with one outer cavity; the connector is positioned in the inner cavity.
3. A connection device for high-voltage side cable connections of an oil-filled transformer according to claim 2, wherein the outer cavity diameter is smaller than the inner cavity diameter.
4. The connection device for high-voltage side cable connection of oil-immersed transformer according to claim 1, wherein the housing is made of insulating silicone rubber.
5. A connection device for high-voltage side cable connections of an oil-immersed transformer according to claim 1, characterized in that the connection element is a copper connection element.
6. A connection device for high-voltage side cable connection of oil-immersed transformer according to claim 1, wherein the two ends of the connection member extend to the openings at the two ends of the housing.
7. A connection device for high-voltage side cable connections of an oil-immersed transformer according to claim 1, wherein the housing is generally "L" -shaped.
8. The connection device for high-voltage side cable connection of oil-immersed transformer according to claim 7, wherein when the whole shell is L-shaped, the cavity is L-shaped, the connection piece is L-shaped correspondingly, and the turning point position of the connection piece is the same as the turning point position of the cavity.
9. The connection device for high-voltage side cable connection of oil-immersed transformer according to claim 1, wherein the housing is integrally shaped like a Chinese character 'yi'.
10. The connection device for high-voltage side cable connection of oil-immersed transformer according to claim 9, wherein when the whole shell is in a shape of one, the cavity is arranged in a shape of one, and the connection piece is correspondingly in a shape of one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320580165.5U CN219677028U (en) | 2023-03-20 | 2023-03-20 | Connecting device for high-voltage side cable connection of oil immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320580165.5U CN219677028U (en) | 2023-03-20 | 2023-03-20 | Connecting device for high-voltage side cable connection of oil immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219677028U true CN219677028U (en) | 2023-09-12 |
Family
ID=87891822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320580165.5U Active CN219677028U (en) | 2023-03-20 | 2023-03-20 | Connecting device for high-voltage side cable connection of oil immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219677028U (en) |
-
2023
- 2023-03-20 CN CN202320580165.5U patent/CN219677028U/en active Active
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| GR01 | Patent grant |