CN214123676U - Low-voltage lead structure of dry-type transformer - Google Patents
Low-voltage lead structure of dry-type transformer Download PDFInfo
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- CN214123676U CN214123676U CN202120356572.9U CN202120356572U CN214123676U CN 214123676 U CN214123676 U CN 214123676U CN 202120356572 U CN202120356572 U CN 202120356572U CN 214123676 U CN214123676 U CN 214123676U
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Abstract
The utility model relates to a low pressure pin configuration of dry-type transformer relates to the field of transformer, and it includes the base, be provided with a plurality of transformer windings on the base, be provided with low voltage zero line copper bar at the base, low voltage zero line copper bar is including first copper bar, second copper bar and the third copper bar of connecting in order, all is provided with the mounting at the junction of first copper bar and second copper bar and the junction of second copper bar and third copper bar, the one end that first copper bar and second copper bar and third copper bar are close to each other all is provided with electrically conductive coupling assembling. This application has the effect of the bad problem of electrically conducting that the junction that improves two blocks of adjacent low pressure zero line copper bars exists.
Description
Technical Field
The application relates to the field of transformers, in particular to a low-voltage lead structure of a dry-type transformer.
Background
The dry-type transformer is widely used in places such as local illumination, high-rise buildings, airports, wharf CNC mechanical equipment and the like, and simply, the dry-type transformer refers to a transformer with an iron core and a winding which are not immersed in insulating oil; the dry type transformer mainly comprises an iron core formed by silicon steel sheets and coils poured by epoxy resin, an insulating cylinder is arranged between the high-voltage coils and the low-voltage coils to increase electrical insulation, the coils are supported and restrained by cushion blocks, and fasteners lapped by parts of the coils all have anti-loosening performance.
The triangular transformer is a transformer with a winding in triangular distribution, the low-voltage end of the triangular transformer comprises an a, b and c three-phase copper bar and a low-voltage zero line copper bar, the low-voltage zero line copper bar is wound around the winding in a bending manner, and if the low-voltage zero line copper bar is of an integrated structure, the low-voltage zero line copper bar is difficult to produce and install, so that a plurality of low-voltage zero line copper bars are often adopted for splicing and installation.
Aiming at the related technologies, the inventor thinks that the splicing and installation of a plurality of low-voltage zero line copper bars are more convenient, but the problem of poor electric conduction exists at the joint of two adjacent low-voltage zero line copper bars.
SUMMERY OF THE UTILITY MODEL
In order to improve the poor electrically conductive problem that exists in the junction of two blocks of adjacent low pressure zero line copper bars, this application provides a low pressure lead structure of dry-type transformer.
The application provides a low pressure lead structure of dry-type transformer adopts following technical scheme:
the utility model provides a low pressure pin configuration of dry-type transformer, includes the base, be provided with a plurality of transformer windings on the base, be provided with low pressure zero line copper bar at the base, low pressure zero line copper bar is including first copper bar, second copper bar and the third copper bar of connecting in order, all is provided with the mounting at the junction of first copper bar and second copper bar and the junction of second copper bar and third copper bar, the one end that first copper bar and second copper bar and third copper bar are close to each other all is provided with electrically conductive coupling assembling.
Through adopting above-mentioned technical scheme, in the in-service use, first copper bar, second copper bar and third copper bar pass through mounting interconnect, wholly be the form of buckling around establishing around transformer winding, set up in the junction of first copper bar and second copper bar and the junction of second copper bar and third copper bar and obtain electrically conductive coupling assembling and improved the holistic electric conductive property of low-voltage zero line copper bar, improved that there is the bad problem of electrically conducting in the junction of two adjacent low-voltage zero line copper bars.
Preferably, the conductive connecting assembly comprises a plurality of conductive connecting pieces arranged at one end, close to each other, of the first copper bar and the second copper bar and the third copper bar, and the conductive connecting pieces on the two adjacent copper bars are crossed and penetrated.
Through adopting above-mentioned technical scheme, when the installation low voltage zero line copper bar, a plurality of electrically conductive connection pieces on two adjacent copper bars are crisscross each other and are worn to establish, have increased the electrically conductive area of contact of two adjacent low voltage zero line copper bars to the electric conductive property between two adjacent low voltage zero line copper bars has been increased.
Preferably, the conductive connecting sheet is of a trapezoidal structure, and the cross section of one end, away from the low-voltage zero line copper bar, of the conductive connecting sheet is larger than the cross section of one end, close to the low-voltage zero line copper bar, of the conductive connecting sheet.
Through adopting above-mentioned technical scheme, trapezium structure's electrically conductive connection piece has further increased the electrically conductive area of contact of adjacent even low pressure zero line copper bar, and links to each other two low pressure zero line copper bars and joint each other, has increased the steadiness that adjacent connection copper bar is connected.
Preferably, a compression elastic piece is arranged between every two adjacent conductive connecting pieces on the low-voltage zero line copper bar.
Through adopting above-mentioned technical scheme, under the effect of compression elastic component elastic restoring force, electrically conductive connection piece on two adjacent low-voltage zero line copper bars supports tightly each other, and then has improved the electric conductive property of two adjacent low-voltage zero line copper bars.
Preferably, the compression elastic element is an elastic copper sheet.
Through adopting above-mentioned technical scheme, the electric conductive property between two adjacent low pressure zero line copper bars has further been improved to the elasticity copper sheet.
Preferably, the fixing piece is a bolt with a nut, and the side wall of the low-voltage zero line copper bar close to the fixing piece is provided with anti-skid lines.
Through adopting above-mentioned technical scheme, the frictional force of mounting with low pressure zero line copper bar contact surface has been increased to the antiskid line, and then has improved the steadiness that two adjacent low pressure zero line copper bars are connected.
Preferably, the conductive connecting assembly comprises tooth-shaped corrugations arranged on the side wall, close to each other, of the first copper bar and the second copper bar and the side wall, close to each other, of the second copper bar and the third copper bar.
Through adopting above-mentioned technical scheme, in the in-service use, the dentate ripple has increased the electrically conductive area of contact of two adjacent low-voltage zero line copper bars, and then has improved the electric conductive property of two continuous low-voltage zero line copper bars.
Preferably, the side walls of the first copper bar, the second copper bar and the third copper bar, which are close to each other, are provided with conductive silver paste.
By adopting the technical scheme, the conductive silver adhesive further improves the conductive performance of the conductive contact surfaces of the two adjacent low-voltage zero line copper bars.
In summary, the present application includes at least one of the following beneficial technical effects:
the first copper bar, the second copper bar and the third copper bar are connected with each other through the fixing piece, and are integrally arranged around the transformer winding in a bending mode, and the conductive connecting assembly is arranged at the connecting position of the first copper bar and the second copper bar and the connecting position of the second copper bar and the third copper bar, so that the conductive performance of the whole low-voltage zero line copper bar is improved, and the problem of poor conductivity at the connecting position of two adjacent low-voltage zero line copper bars is solved;
when the low-voltage zero line copper bars are installed, the plurality of conductive connecting sheets on two adjacent copper bars are crossed and penetrated, so that the conductive contact area of two adjacent low-voltage zero line copper bars is increased, and the conductive performance between two adjacent low-voltage zero line copper bars is increased;
the tooth-shaped corrugation increases the conductive contact area of two adjacent low-voltage zero line copper bars, so that the conductive performance of two connected low-voltage zero line copper bars is improved.
Drawings
Fig. 1 is a schematic overall structure diagram of a low-voltage lead structure of a dry-type transformer according to embodiment 1 of the present application;
fig. 2 is a schematic structural view of a conductive connection piece for highlighting in a low-voltage lead structure of a dry-type transformer in embodiment 1 of the present application;
fig. 3 is a schematic structural diagram of the whole low-voltage lead structure of a dry-type transformer according to embodiment 2 of the present application;
fig. 4 is a schematic structural view of a portion a in fig. 3.
Description of reference numerals: 1. a base; 2. a transformer winding; 3. a low-voltage zero line copper bar; 31. a first copper bar; 32. a second copper bar; 33. a third copper bar; 4. a fixing member; 5. a conductive connecting sheet; 6. compressing the elastic member; 7. tooth-shaped corrugation; 8. conductive silver paste; 9. and (4) anti-skid lines.
Detailed Description
The present application is described in further detail below with reference to figures 1-4.
The embodiment of the application discloses a low-voltage lead structure of a dry-type transformer.
Example 1:
referring to fig. 1 and 2, the low voltage lead structure of the dry type transformer includes a base 1, three transformer windings 2 are fixed on the base 1, and the three transformer windings 2 are distributed in a triangular shape. And a low-voltage zero line copper bar 3 is further fixed on the base 1, and the low-voltage zero line copper bar 3 is connected with the low-voltage sides of the three transformer windings 2 in series.
The low-voltage zero line copper bar 3 comprises a first copper bar 31, a second copper bar 32 and a third copper bar 33 which are sequentially connected in series, one end of the first copper bar 31, which is close to the second copper bar 32, and one end of the second copper bar 32, which is close to the third copper bar 33, are fixedly connected through a fixing part 4, and the fixing part 4 in the embodiment can be a bolt with a nut.
A plurality of conductive connecting sheets 5 are fixed at the ends of two adjacent copper bars, and the conductive connecting sheets 5 are arranged at equal intervals at the end parts of the first copper bar 31, the second copper bar 32 and the third copper bar 33. The conductive connecting sheet 5 and the low-voltage lead copper bar are integrally formed. When the fixing device is installed, the plurality of conductive connecting sheets 5 on the two adjacent low-voltage zero line copper bars 3 are mutually staggered and inserted, and the fixing device 4 is fixed after penetrating the plurality of conductive connecting sheets 5 on the two low-voltage zero line copper bars 3, so that the conductive contact area of the two adjacent low-voltage zero line copper bars 3 is increased.
The cross section of the conductive connecting sheet 5 is trapezoidal, and the cross section of one end, far away from the low-voltage zero line copper bar 3, of the conductive connecting sheet 5 is larger than the cross section of one end, close to the low-voltage zero line copper bar 3, of the conductive connecting sheet 5. The conductive connecting sheets 5 on the two adjacent low-voltage zero line copper bars 3 are mutually clamped, so that the connection stability of the two adjacent low-voltage zero line copper bars 3 is improved.
An arc-shaped strip-shaped compression elastic piece 6 is arranged between two adjacent conductive connecting pieces 5 on the low-voltage zero line copper bar 3, and the compression elastic piece 6 in the embodiment is an elastic copper sheet. One end of the compression elastic piece 6 is fixed on the low-voltage zero line copper bar 3, and the other end of the compression elastic piece 6 is elastically supported tightly with the conductive connecting piece 5 on the adjacent low-voltage zero line copper bar 3, so that the conductive connecting pieces 5 on the two adjacent low-voltage zero line copper bars 3 are mutually supported tightly, and the connection stability of the two adjacent low-voltage zero line copper bars 3 is improved.
The implementation principle of the embodiment 1 is as follows: the mutual dislocation of the multi-disc conductive connection piece 5 on two adjacent low-voltage zero line copper bars 3 is worn to establish, and the conductive connection piece 5 of trapezium structure has increased electrically conductive area of contact, and the compression elastic component 6 that sets up on low-voltage zero line copper bar 3 supports tightly with the conductive connection piece 5 elasticity on the adjacent low-voltage zero line copper bar 3, has improved the connection stability who links to each other two low-voltage zero line copper bars 3, and the multi-disc conductive connection piece 5 on two low-voltage zero line copper bars 3 is fixed through mounting 4.
Example 2:
referring to fig. 3 and 4, the embodiment is different from embodiment 1 in that no conductive connecting sheet 5 is disposed on the low-voltage zero line copper bar 3, two adjacent low-voltage zero line copper bars 3 are staggered and close to each other, tooth-shaped corrugations 7 are disposed on the side walls of the two adjacent low-voltage zero line copper bars 3 close to each other, the tooth-shaped corrugations 7 on the two adjacent low-voltage zero line copper bars 3 are meshed with each other, a fixing member 4 is disposed at one end of each of the two connected low-voltage zero line copper bars 3 close to each other, and the fixing member 4 in this embodiment is a bolt with a nut.
The conductive silver adhesive 8 is filled and arranged on the side wall, close to each other, of each two adjacent low-voltage zero line copper bars 3, and the conductive silver adhesive 8 improves the conductive performance between the two adjacent low-voltage zero line copper bars 3. The side wall department that is close to mounting 4 on two adjacent low voltage zero line copper bars 3 is provided with anti-skidding line 9, and anti-skidding line 9 has increased the frictional force of mounting 4 with 3 contact surfaces of low voltage zero line copper bar, and then has improved the steadiness that two adjacent low voltage zero line copper bars 3 are connected.
The implementation principle of the embodiment 2 is as follows: the tooth-shaped corrugations 7 arranged on the side walls, close to each other, of the two adjacent low-voltage zero line copper bars 3 increase the conductive contact area between the low-voltage zero line copper bars 3, and further increase the conductive performance of the two adjacent low-voltage zero line copper bars 3. The conductive silver paste 8 filled on the side walls of the two adjacent low-voltage zero line copper bars 3 close to each other further increases the conductive performance of the low-voltage zero line copper bars 3.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. A low-voltage lead structure of a dry-type transformer is characterized in that: including base (1), be provided with a plurality of transformer windings (2) on base (1), be provided with low pressure zero line copper bar (3) in base (1), low pressure zero line copper bar (3) are including first copper bar (31), second copper bar (32) and third copper bar (33) of connecting in order, all are provided with mounting (4) at the junction of first copper bar (31) and second copper bar (32) and the junction of second copper bar (32) and third copper bar (33), first copper bar (31) all are provided with electrically conductive coupling assembling with the one end that second copper bar (32) and third copper bar (33) are close to each other.
2. A low-voltage lead structure of a dry type transformer as set forth in claim 1, wherein: the conductive connecting component comprises a plurality of conductive connecting pieces (5) which are arranged at one ends, close to each other, of a first copper bar (31), a second copper bar (32) and a third copper bar (33), and the conductive connecting pieces (5) on the two adjacent copper bars are mutually staggered and penetrated.
3. A low-voltage lead structure of a dry type transformer as set forth in claim 2, wherein: the conductive connecting piece (5) is of a trapezoidal structure, and the cross section of one end, far away from the low-voltage zero line copper bar (3), of the conductive connecting piece (5) is larger than the cross section of one end, close to the low-voltage zero line copper bar (3), of the conductive connecting piece (5).
4. A low-voltage lead structure of a dry type transformer as set forth in claim 3, wherein: and a compression elastic piece (6) is arranged between two adjacent conductive connecting sheets (5) on the low-voltage zero line copper bar (3).
5. A low-voltage lead structure of a dry type transformer as set forth in claim 4, wherein: the compression elastic piece (6) is an elastic copper sheet.
6. A low-voltage lead structure of a dry type transformer as set forth in claim 1, wherein: the fixing piece (4) is a bolt with a nut, and anti-skid lines (9) are arranged on the side wall, close to the fixing piece (4), of the low-voltage zero line copper bar (3).
7. A low-voltage lead structure of a dry type transformer as set forth in claim 1, wherein: the conductive connection assembly comprises tooth-shaped corrugations (7) which are arranged on the side walls, close to each other, of the first copper bar (31) and the second copper bar (32) and the side walls, close to each other, of the second copper bar (32) and the third copper bar (33).
8. A low-voltage lead structure of a dry type transformer as set forth in claim 7, wherein: and conductive silver paste (8) is arranged on the side walls of the first copper bar (31), the second copper bar (32) and the third copper bar (33) which are close to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120356572.9U CN214123676U (en) | 2021-02-06 | 2021-02-06 | Low-voltage lead structure of dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120356572.9U CN214123676U (en) | 2021-02-06 | 2021-02-06 | Low-voltage lead structure of dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214123676U true CN214123676U (en) | 2021-09-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120356572.9U Active CN214123676U (en) | 2021-02-06 | 2021-02-06 | Low-voltage lead structure of dry-type transformer |
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| Country | Link |
|---|---|
| CN (1) | CN214123676U (en) |
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2021
- 2021-02-06 CN CN202120356572.9U patent/CN214123676U/en active Active
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