CN216389020U - Low-voltage lead structure of transformer and transformer - Google Patents
Low-voltage lead structure of transformer and transformer Download PDFInfo
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- CN216389020U CN216389020U CN202122088873.0U CN202122088873U CN216389020U CN 216389020 U CN216389020 U CN 216389020U CN 202122088873 U CN202122088873 U CN 202122088873U CN 216389020 U CN216389020 U CN 216389020U
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Abstract
The utility model relates to a low-voltage lead structure of a transformer, which comprises an A-phase coil (1), a B-phase coil (2) and a C-phase coil (3) which are arranged in a delta shape, wherein a B-phase lead-out wire row (5) is arranged on the B-phase coil (2), and the B-phase lead-out wire row (5) is respectively connected with a B-phase head-end outgoing wire (21) of the B-phase coil (2) and an external circuit; the B-phase lead-out wire row (5) is located above the A-phase coil (1), the B-phase coil (2) and the C-phase coil (3) and located outside an axial space where the A-phase coil (1), the B-phase coil (2) and the C-phase coil (3) are located. The magnetic flux passing through the b-phase lead-out line row is small and thus heat is not easily generated. The utility model also discloses a transformer which also has the advantage that the b-phase lead-out wire row is not easy to heat.
Description
Technical Field
The utility model relates to the technical field of transformers, in particular to a low-voltage lead structure of a transformer and the transformer.
Background
A transformer is an electrical device for transforming ac voltage and current to transmit ac power.
Through inspection, the Chinese utility model patent with application number 201720238373.1 (publication number CN206541715U) discloses a three-dimensional triangle-shaped wound core transformer low-voltage lead structure, the three-dimensional triangular wound core transformer low-voltage lead structure comprises a three-dimensional wound core and a coil winding, wherein the three-dimensional wound core comprises three core legs which are arranged in a triangular shape, the coil winding comprises a phase a low-voltage coil, a phase b low-voltage coil and a phase c low-voltage coil, the upper ends of the phase a low-voltage coil, the phase b low-voltage coil and the phase c low-voltage coil are respectively provided with a leading-out connector, the leading-out connector of the phase a low-voltage coil is connected with a leading-out wire row a, the leading-out connector of the phase b low-voltage coil is connected with a leading-out wire row b, the leading-out connector of the phase c low-voltage coil is connected with a leading-out wire row c, the lead-out line row a and the lead-out line row c are arranged in parallel, the lead-out line row b is arranged vertically relative to the lead-out line row a and the lead-out line row c, and the lead-out line row b horizontally extends to a position between the lead-out line row a and the lead-out line row c. The utility model makes the low-voltage lead more compact and simple locally, reduces the manufacturing difficulty, reduces the consumption of the conducting bars and is beneficial to the balance of three-phase resistors.
However, the above patent has the following problems: the lead line row b (equivalent to a b-phase lead line row hereinafter) is provided at a position above the core, and a magnetic flux passing through the lead line row b is large, thereby causing an increase in loss and an increase in temperature, with a risk of burnout.
SUMMERY OF THE UTILITY MODEL
The first technical problem to be solved by the present invention is to provide a low-voltage lead structure of a transformer, in which a b-phase lead line is not easy to generate heat, in view of the current situation of the prior art.
The second technical problem to be solved by the present invention is to provide a transformer in view of the current situation of the prior art.
The technical scheme adopted by the utility model for solving the first technical problem is as follows: a low-voltage lead structure of a transformer comprises an A-phase coil, a B-phase coil and a C-phase coil which are arranged in a delta shape, wherein a B-phase lead-out wire row is arranged on the B-phase coil and is respectively connected with a B-phase head-end lead-out wire of the B-phase coil and an external circuit;
the method is characterized in that: the B-phase lead-out wire row is located above the A-phase coil, the B-phase coil and the C-phase coil and located on the outer side of an axial space where the A-phase coil, the B-phase coil and the C-phase coil are located.
As an improvement, the system also comprises an a-phase lead-out wire row which is respectively connected with an a-phase head-end lead-out wire of the A-phase coil and an external circuit;
and the C-phase lead-out wire row is respectively connected with a C-phase head-end lead-out wire of the C-phase coil and an external circuit.
In order to facilitate connection with an external circuit, the positions where the a-phase lead-out line row, the b-phase lead-out line row and the c-phase lead-out line row are respectively connected with the external circuit are all on the same side. And the external circuits are positioned on the same side, so that the external circuits can extend from the same direction conveniently.
Further, the device also comprises a zero row which comprises
The first branch row is respectively connected with a B-phase tail end outgoing line of the B-phase coil and an external circuit;
and the second branch row is respectively connected with the phase a tail end outgoing line of the phase A coil and the phase C tail end outgoing line of the phase C coil, and is connected with the first branch row.
Still further, the first leg row is located at least partially above the phase a coil, the phase B coil, and the phase C coil.
Still further, the second leg row is located at least partially above the phase a coil, the phase B coil, and the phase C coil.
In order to fix the a-phase lead-out wire row, the B-phase lead-out wire row and the C-phase lead-out wire row, the multi-phase lead-out wire fixing device further comprises an upper clamping piece arranged above the A-phase coil, the B-phase coil and the C-phase coil, the upper clamping piece is located below the middle of the zero row, a plurality of transversely extending first insulators are arranged on the side wall of the upper clamping piece, each first insulator is connected with each phase lead-out wire row respectively, and all the first insulators are arranged on the upper clamping piece at intervals.
In order to fix the zero row, the upper part of the upper clamping piece is provided with a plurality of second insulators extending up and down, each second insulator is connected with the zero row, and all the second insulators are arranged on the upper clamping piece at intervals.
The technical scheme adopted by the utility model for solving the second technical problem is as follows: a transformer is provided, and the low-voltage lead structure of the transformer is applied.
Compared with the prior art, the utility model has the advantages that: the B-phase lead-out line row is positioned above the A-phase coil, the B-phase coil and the C-phase coil and is positioned outside the axial space where the A-phase coil, the B-phase coil and the C-phase coil are positioned, so that the B-phase coil is not positioned above the iron core, the magnetic flux of the B-phase lead-out line row is small, and heat is not easy to generate.
The transformer with the low-voltage lead structure of the transformer also has the advantage that the b-phase lead wire row is not easy to heat.
Drawings
Fig. 1 is a perspective view of a low-voltage lead structure of a transformer according to the present invention.
Detailed Description
The utility model is described in further detail below with reference to the accompanying examples.
As shown in fig. 1, a preferred embodiment of the present invention. The low-voltage lead structure of the transformer comprises an A-phase coil 1, a B-phase coil 2, a C-phase coil 3, an upper clamping piece 8, a B-phase lead-out wire row 5, an a-phase lead-out wire row 4, a C-phase lead-out wire row 6, a zero row 7 and the like which are arranged in a delta shape.
The a-phase lead-out wire row 4 is respectively connected with the a-phase head end outgoing wire 11 of the A-phase coil 1 and an external circuit.
And the B-phase lead-out wire row 5 is respectively connected with a B-phase head end outgoing wire 21 of the B-phase coil 2 and an external circuit.
The B-phase lead-out wire row 5 is located above the a-phase coil 1, the B-phase coil 2, and the C-phase coil 3, and is located outside the axial space where the a-phase coil 1, the B-phase coil 2, and the C-phase coil 3 are located.
The C-phase lead-out wire row 6 is respectively connected with a C-phase head-end lead-out wire 31 of the C-phase coil 3 and an external circuit; the positions of the a-phase lead-out line row 4, the b-phase lead-out line row 5 and the C-phase lead-out line row 6, which are respectively connected with the external circuit, are all on the same side (in this embodiment, on the positions on the outer sides of the a-phase coil 1 and the C-phase coil 3), so that the external circuit can extend from the same direction, and the wiring is convenient.
The zero row 7 includes a first branch row 71 and a second branch row 72, the first branch row 71 connects the B-phase tail end outgoing line 22 of the B-phase coil 2 and the external circuit, and the part of the first branch row 71 is located above the a-phase coil 1, the B-phase coil 2 and the C-phase coil 3, the second branch row 72 connects the a-phase tail end outgoing line 12 of the a-phase coil 1 and the C-phase tail end outgoing line 32 of the C-phase coil 3, and the second branch row 72 is connected to the first branch row 71, and the part of the second branch row 72 is located above the a-phase coil 1, the B-phase coil 2 and the C-phase coil 3.
The upper clamp 8 is arranged above the phase a coil 1, the phase B coil 2 and the phase C coil 3, the upper clamp 8 is positioned below the middle part of the zero row 7, a plurality of first insulators 83 extending transversely are arranged on the side wall of the upper clamp 8, each first insulator 83 is respectively connected with each phase leading-out line 4, 5 and 6, and all the first insulators 83 are arranged on the upper clamp 8 at intervals. In order that the upper clip and the b-phase lead-out line 5 do not interfere with each other, the b-phase lead-out line 5 is located outside the side wall of the upper clip 8. In order to fix the zero row 7, a plurality of second insulators 84 extending up and down are disposed on the upper portion of the upper clip member 8, each second insulator 84 is connected to the zero row 7, and all the second insulators 84 are arranged on the upper clip member 8 at intervals.
The embodiment also provides a transformer, and the low-voltage lead structure of the transformer is applied.
The working principle is as follows.
After the phase-a coil 1, the phase-B coil 2 and the phase-C coil 3 are installed, the clamping piece 8 is installed, then the phase-a outgoing line row 4, the phase-B outgoing line row 5 and the phase-C outgoing line row 6 are respectively arranged on the corresponding first insulators 83, then the phase-B outgoing line row 5 is respectively connected with the phase-B head end outgoing line 21 of the phase-B coil 2 and an external circuit, the phase-a outgoing line row 4 is respectively connected with the phase-a head end outgoing line 11 of the phase-a coil 1 and the external circuit, and the phase-C outgoing line row 6 is respectively connected with the phase-C head end outgoing line 31 of the phase-C coil 3 and the external circuit. The zero row 7 is connected with the second insulator 84, the first branch row 71 is connected with the B-phase tail end outgoing line 22 of the B-phase coil 2 and the external circuit, the second branch row 72 is connected with the a-phase tail end outgoing line 12 of the a-phase coil 1 and the C-phase tail end outgoing line 32 of the C-phase coil 3, and the second branch row 72 is connected with the first branch row 71.
Since the B-phase lead-out wire row 5 is located outside the upper clamp 8 and not above the iron core (the iron core is not shown in the drawing, and the iron core is matched with the a-phase coil 1, the B-phase coil 2 and the C-phase coil 3 by adopting the existing structure), the magnetic flux passing through the B-phase lead-out wire row 5 is small, and therefore heat is not easily generated.
Claims (10)
1. A low-voltage lead structure of a transformer comprises an A-phase coil (1), a B-phase coil (2) and a C-phase coil (3) which are arranged in a delta shape, wherein a B-phase lead-out wire row (5) is arranged on the B-phase coil (2), and the B-phase lead-out wire row (5) is respectively connected with a B-phase head-end lead-out wire (21) of the B-phase coil (2) and an external circuit;
the method is characterized in that: and the B-phase lead-out wire row (5) is positioned above the A-phase coil (1), the B-phase coil (2) and the C-phase coil (3) and positioned outside the axial space where the A-phase coil (1), the B-phase coil (2) and the C-phase coil (3) are positioned.
2. The low voltage lead configuration of claim 1, wherein: the phase-a coil is characterized by further comprising a phase-a outgoing line row (4), wherein the phase-a outgoing line row (4) is respectively connected with a phase-a head end outgoing line (11) of the phase-A coil (1) and an external circuit.
3. The low voltage lead configuration of claim 2, wherein: the coil is characterized by further comprising a C-phase lead-out wire row (6), wherein the C-phase lead-out wire row (6) is respectively connected with a C-phase head end lead-out wire (31) of the C-phase coil (3) and an external circuit.
4. The low voltage lead configuration of claim 3, wherein: the positions of the a-phase lead-out line row (4), the b-phase lead-out line row (5) and the c-phase lead-out line row (6) which are respectively connected with the external circuit are all on the same side.
5. The low voltage lead configuration of claim 1, wherein: also comprises a zero row (7), wherein the zero row (7) comprises
The first branch row (71) is respectively connected with a B-phase tail end outgoing line (22) of the B-phase coil (2) and an external circuit;
and a second branch row (72) which connects the phase a tail end outgoing line (12) of the phase A coil (1) and the phase C tail end outgoing line (32) of the phase C coil (3), respectively, and the second branch row (72) is connected with the first branch row (71).
6. The low voltage lead configuration of claim 5, wherein: the first branch row (71) is at least partially located above the phase A coil (1), the phase B coil (2) and the phase C coil (3).
7. The low voltage lead configuration of claim 5, wherein: the second branch row (72) is at least partially located above the phase A coil (1), the phase B coil (2) and the phase C coil (3).
8. The low voltage lead configuration of claim 5, wherein: the coil assembly is characterized by further comprising an upper clamping piece (8) arranged above the phase-A coil (1), the phase-B coil (2) and the phase-C coil (3), the upper clamping piece (8) is located below the middle of the zero row (7), a plurality of transversely extending first insulators (83) are arranged on the side wall of the upper clamping piece (8), each first insulator (83) is connected with each phase lead-out line row (4, 5 and 6) respectively, and all the first insulators (83) are arranged on the upper clamping piece (8) at intervals.
9. The low voltage lead configuration of claim 8, wherein: the upper portion of the upper clamping piece (8) is provided with a plurality of second insulators (84) extending up and down, each second insulator (84) is connected with the zero row (7), and all the second insulators (84) are arranged on the upper clamping piece (8) at intervals.
10. A transformer to which a low-voltage lead structure of the transformer according to any one of claims 1 to 9 is applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122088873.0U CN216389020U (en) | 2021-08-31 | 2021-08-31 | Low-voltage lead structure of transformer and transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122088873.0U CN216389020U (en) | 2021-08-31 | 2021-08-31 | Low-voltage lead structure of transformer and transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216389020U true CN216389020U (en) | 2022-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122088873.0U Active CN216389020U (en) | 2021-08-31 | 2021-08-31 | Low-voltage lead structure of transformer and transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216389020U (en) |
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2021
- 2021-08-31 CN CN202122088873.0U patent/CN216389020U/en active Active
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Address after: 315031 No.17 and 22 Fenglin Road, Cicheng Town, Jiangbei District, Ningbo City, Zhejiang Province Patentee after: Ningbo Aokes Intelligent Technology Co.,Ltd. Address before: 315031 No.17 and 22 Fenglin Road, Cicheng Town, Jiangbei District, Ningbo City, Zhejiang Province Patentee before: NINGBO AUX HIGH TECHNOLOGY Co.,Ltd. |