CN215578150U - Reactor magnetic pressing plate shielding structure - Google Patents
Reactor magnetic pressing plate shielding structure Download PDFInfo
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- CN215578150U CN215578150U CN202121682527.9U CN202121682527U CN215578150U CN 215578150 U CN215578150 U CN 215578150U CN 202121682527 U CN202121682527 U CN 202121682527U CN 215578150 U CN215578150 U CN 215578150U
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Abstract
The utility model relates to a shielding structure of a magnetic pressure plate of a reactor, belonging to the technical field of reactor manufacturing. The technical scheme is as follows: the outer side surface of the insulating hard board (1) is provided with a chamfer, the copper braided wire (2) is arranged on the chamfer side of the insulating hard board (1), and the aluminum foil crepe paper (3) and the micro crepe paper (5) are integrally wrapped on the copper braided wire and the insulating hard board to form a shielding strip (9); the shielding strip (9) is arranged at the outer edge of the magnetic pressure plate of the reactor in a surrounding mode, one end of the shielding strip (9) is fixedly connected with one end of the supporting bent plate (8) through a first bolt (12), the other end of the supporting bent plate (8) is fixed on the iron core clamping piece (11), and the other end of the shielding strip is fixed on the magnetic pressure plate of the reactor through a second bolt (13). The utility model has the following positive effects: the shape of the metal electrode in the high electric field intensity area of the magnetic pressure plate is improved, and the risk of generating partial discharge is reduced; the operation is simple and convenient, and the problem of local field intensity concentration of the edge of the magnetic pressing plate and the sharp corner of the iron core structural member in high electric field intensity is solved.
Description
Technical Field
The utility model relates to a shielding structure of a magnetic pressure plate of a reactor, belonging to the technical field of reactor manufacturing.
Background
Because the leakage magnetic flux of the reactor is very large, the local temperature in the reactor is increased due to the leakage magnetic field, and the loss is increased. If the leakage magnetic flux directly enters the upper yoke and the lower yoke or the tank wall of the oil tank without being guided by the leakage control shielding structure, the iron core or the tank wall of the oil tank can be overheated. The magnetic pressing plates are additionally arranged at the upper end part and the lower end part of the reactor, so that the problem of leakage magnetic fields can be well solved. However, the edge of the magnetic pressure plate and the iron core structural member with the poor electrode shape of part of the edge are in high electric field intensity, so that partial discharge is easily caused, and the safe operation of the reactor is damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a shielding structure of a magnetic pressing plate of a reactor, which can effectively shield the magnetic leakage problem of the edge of the magnetic pressing plate and the tip part of an iron core structural member of the magnetic pressing plate, improve the shape of a metal electrode in a high electric field intensity area, reduce the risk of generating partial discharge and solve the problems in the prior art.
The technical scheme of the utility model is as follows:
a magnetic pressure plate shielding structure of a reactor comprises an insulating hard board, a copper braided wire, aluminum foil crepe paper, a cold press joint, micro crepe paper, a contraction belt and a supporting bent plate, wherein a first bolt hole and a second bolt hole are respectively formed in two ends of the insulating hard board, a chamfer is arranged on the outer side surface of the insulating hard board, the copper braided wire is arranged on the chamfer side of the insulating hard board, and the copper braided wire and the insulating hard board are integrally wrapped with the aluminum foil crepe paper and the micro crepe paper to form a shielding strip; the shielding strip is arranged on the outer edge of the reactor magnetic pressing plate in a surrounding mode, one end of the shielding strip is fixedly connected with one end of the supporting bent plate through a first bolt, the other end of the supporting bent plate is fixed on the iron core clamping piece, and the other end of the shielding strip is fixed on the reactor magnetic pressing plate through a second bolt; the end of the copper braided wire is led out of the other end of the shielding strip and is wrapped by crepe paper and a contraction band, and the end of the lead-out end is connected to the iron core structural member after being pressed and connected with the cold pressing connector.
The supporting bent plate is an L-shaped plate, one end of the supporting bent plate is vertically fixed on the iron core clamping piece, the other end of the supporting bent plate horizontally extends out in the direction of the shielding strip after being bent for 90 degrees, the extending end is provided with a third bolt hole, and a first bolt penetrates through the first bolt hole and the third bolt hole to fix the supporting bent plate at one end of the shielding strip.
The utility model has the following positive effects: the shape of the metal electrode in the high electric field intensity area of the magnetic pressure plate is improved, and the risk of generating partial discharge is reduced; the operation is simple and convenient, and the problem of local field intensity concentration of the edge of the magnetic pressing plate and the sharp corner of the iron core structural member in high electric field intensity is solved.
Drawings
FIG. 1 is a schematic top view of a shielding strip according to the present invention;
FIG. 2 is a cross-sectional view of a shield strip of the present invention;
FIG. 3 is a schematic view of the shield strip installation of the present invention;
in the figure: the novel corrugated plate comprises an insulating hard board 1, a copper braided wire 2, aluminum foil crepe paper 3, a cold-pressed joint 4, micro-crepe paper 5, crepe paper 6, a contraction band 7, a support bent plate 8, a shielding strip 9, an iron core structural member 10, an iron core clamping member 11, a first bolt 12 and a second bolt 13.
Detailed Description
The utility model is further described with reference to the following figures and examples:
a magnetic pressure plate shielding structure of a reactor comprises an insulating hard board 1, a copper braided wire 2, aluminum foil crepe paper 3, a cold-pressing joint 4, micro-crepe paper 5, crepe paper 6, a contraction belt 7 and a supporting bent plate 8, wherein a bolt hole I and a bolt hole II are respectively formed in two ends of the insulating hard board 1, a chamfer is arranged on the outer side surface of the insulating hard board 1, the copper braided wire 2 is arranged on the chamfer side of the insulating hard board 1, and the aluminum foil crepe paper 3 and the micro-crepe paper 5 are integrally wrapped outside the insulating hard board 1 to form a shielding strip 9; the shielding strip 9 is arranged at the outer edge of the reactor magnetic pressure plate in a surrounding mode, one end of the shielding strip 9 is fixedly connected with one end of the supporting bent plate 8 through a first bolt 12, the other end of the supporting bent plate 8 is fixed on the iron core clamping piece 11, and the other end of the shielding strip 9 is fixed on the reactor magnetic pressure plate through a second bolt 13; the end of the copper braided wire 2 is led out of the other end of the shielding strip and is wrapped by crepe paper 6 and a contraction band 7, and the end of the led-out end is connected to an iron core structural member 10 after being pressed with a cold pressing joint 4.
The supporting bent plate 8 is an L-shaped plate, one end of the supporting bent plate is vertically fixed on the iron core clamping piece 11, the other end of the supporting bent plate is bent for 90 degrees and then horizontally extends out of the shielding strip in the direction, a third bolt hole is formed in the extending end of the supporting bent plate, a first bolt 12 penetrates through the first bolt hole and the third bolt hole, and the supporting bent plate 8 is fixed at one end of the shielding strip 9.
With reference to fig. 1-3, the first embodiment:
an insulating hard board is arranged on the outer edge (edge) of the reactor magnetic pressing plate, the insulating hard board extends to the edge of the iron core web, a chamfer is arranged on the outer side of the insulating hard board, a copper braided wire is placed on the outer side of the insulating hard board, aluminum foil crepe paper is wrapped outside the insulating hard board, and then the insulating micro crepe paper is wrapped outside the insulating hard board to reach a proper thickness to form a shielding strip; one end of the copper braided wire is led out of the shielding strip, the exposed part is wrapped with crepe paper and a contraction band, and the led-out copper braided wire is connected to the iron core structural member after being pressed and connected by a proper cold pressing connector. The length of the insulating hard board enables the aluminum foil crepe paper to effectively cover the outer edge of the reactor magnetic pressing plate and the adjacent iron core structural member, one end of the shielding strip is fixed on the reactor magnetic pressing plate through a second bolt, the other end of the shielding strip is fixed at one end of the supporting bent plate through a first bolt, and the other end of the supporting bent plate is fixed on the iron core clamping member. The utility model not only serves as a magnetic pressure plate shielding structure, but also can effectively shield the sharp angle extending out of the iron core structural member, realizes the separation of the iron core structural member with poor electrode shape, reduces the risk of partial discharge in a high field intensity area, and improves the running reliability of the reactor.
Claims (1)
1. The utility model provides a reactor magnetic pressing plate shielding structure which characterized in that: the anti-corrosion corrugated paper comprises an insulating hard board (1), copper braided wires (2), aluminum foil corrugated paper (3), a cold pressing connector (4), micro corrugated paper (5), corrugated paper (6), a contraction band (7) and a supporting bent plate (8), wherein a first bolt hole and a second bolt hole are formed in two ends of the insulating hard board (1) respectively, a chamfer is arranged on the outer side surface of the insulating hard board (1), the copper braided wires (2) are arranged on the chamfer side of the insulating hard board (1), and the two parts are integrally wrapped with the aluminum foil corrugated paper (3) and the micro corrugated paper (5) to form a shielding strip (9); the shielding strip (9) is arranged at the outer edge of the reactor magnetic pressure plate in a surrounding mode, one end of the shielding strip (9) is fixedly connected with one end of the supporting bent plate (8) through a first bolt (12), the other end of the supporting bent plate (8) is fixed on the iron core clamping piece (11), and the other end of the shielding strip (9) is fixed on the reactor magnetic pressure plate through a second bolt (13); the end part of the copper braided wire (2) is led out of the other end of the shielding strip and is wrapped by crepe paper (6) and a contraction band (7), and the end part of the led-out end is connected to an iron core structural member (10) after being pressed with a cold pressing joint (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121682527.9U CN215578150U (en) | 2021-07-23 | 2021-07-23 | Reactor magnetic pressing plate shielding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121682527.9U CN215578150U (en) | 2021-07-23 | 2021-07-23 | Reactor magnetic pressing plate shielding structure |
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| Publication Number | Publication Date |
|---|---|
| CN215578150U true CN215578150U (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202121682527.9U Active CN215578150U (en) | 2021-07-23 | 2021-07-23 | Reactor magnetic pressing plate shielding structure |
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| CN (1) | CN215578150U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113611511A (en) * | 2021-07-23 | 2021-11-05 | 保定天威保变电气股份有限公司 | Reactor magnetic pressure plate shielding structure and method |
-
2021
- 2021-07-23 CN CN202121682527.9U patent/CN215578150U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113611511A (en) * | 2021-07-23 | 2021-11-05 | 保定天威保变电气股份有限公司 | Reactor magnetic pressure plate shielding structure and method |
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