CN213583174U - 240-grade aromatic polyimide enameled rectangular copper wire for subway drive motor - Google Patents
240-grade aromatic polyimide enameled rectangular copper wire for subway drive motor Download PDFInfo
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- CN213583174U CN213583174U CN202022730559.3U CN202022730559U CN213583174U CN 213583174 U CN213583174 U CN 213583174U CN 202022730559 U CN202022730559 U CN 202022730559U CN 213583174 U CN213583174 U CN 213583174U
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Abstract
The utility model discloses a subway driving motor is with 240 grades of aromatic polyimide enameled flat copper wire, include the copper core combination that constitutes by the double-deck copper line that a plurality of groups parallel, every double-deck copper line of group all includes superimposed copper core (1) from top to bottom, the outside of copper core (1) is equipped with first insulation layer (2), the outside on first insulation layer (2) is equipped with first corona-resistant layer (3), the outside cladding of first corona-resistant layer (3) has strengthening layer (4), the thickness that strengthening layer (4) are located copper core (1) round angle department is greater than the thickness that strengthening layer (4) are located copper core (1) plane, the outside cladding of copper core combination has second corona-resistant layer (5), the outside of second corona-resistant layer (5) is equipped with second insulating layer (6). The utility model has the characteristics of current-carrying capacity is big, stable in structure, mechanical properties is good, corona resistance is strong.
Description
Technical Field
The utility model relates to an enameled rectangular copper wire for motor, especially a subway is 240 grades of aromatic polyimide enameled rectangular copper wire for driving motor.
Background
The enameled wire is a main variety of winding wires and consists of a conductor and an insulating layer, and a bare wire is annealed and softened and then is subjected to painting and baking for multiple times. However, the quality characteristics of the formed enameled wire are different because the enameled wire is influenced by the factors such as the type of raw materials, the preparation process, the internal enameled structure and the like. The enameled wire is very widely applied, the enameled wire on the subway driving motor needs the enameled wire to have excellent mechanical property, chemical property, electrical property and thermal property, the existing copper enameled wire applied to the subway driving motor is generally a single copper core wire, the type of the paint layer is not rich enough, the protection strength is not strong enough, and the current-carrying capacity, the mechanical property and the electrical property of the enameled wire are still to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a subway is 240 grades of aromatic polyimide enameled rectangular copper wires for driving motor. The utility model has the characteristics of current-carrying capacity is big, stable in structure, mechanical properties is good, corona resistance is strong.
The technical scheme of the utility model: 240-grade aromatic polyimide enameled flat copper wire for subway driving motor, include the copper core combination that constitutes by the double-deck copper line that a plurality of groups parallel, every double-deck copper line of group all includes superimposed copper core from top to bottom, the outside of copper core is equipped with the first insulation layer, the outside on first insulation layer is equipped with first corona resistant layer, the outside cladding on first corona resistant layer has the strengthening layer, the thickness that the strengthening layer is located copper core round angle department is greater than the thickness that the strengthening layer is located on the copper core plane, the outside cladding of copper core combination has second corona resistant layer, the outside on second corona resistant layer is equipped with the second insulating layer.
In the 240-grade aromatic polyimide enameled rectangular copper wire for the subway drive motor, the first insulating layer and the second insulating layer are both made of aromatic polyimide varnish.
In the 240-grade aromatic polyimide enameled rectangular copper wire for the subway drive motor, the reinforcing layer is formed by interweaving silica gel fibers and carbon fibers, and is connected with the first corona-resistant layer through self-adhesive.
In the 240-grade aromatic polyimide enameled rectangular copper wire for the subway drive motor, corona-resistant particles are uniformly arranged at the junction between the second corona-resistant layer and the second insulating layer.
Compared with the prior art, the utility model discloses a many copper core lines make up, overall structure is compact, reasonable, improve the current-carrying capacity of enameled wire, the outside of every copper core line has all wrapped up first insulating layer, first corona resistant layer and strengthening layer, makes every group double-deck copper line all have good insulating nature, corona resistant nature and mechanical strength, can bear great load, and the strengthening layer is key protection to copper core line corner department, makes the stability of size keep more easily when the enameled flat wire is crooked, creep resistance and resistant bending performance are good; a second corona-resistant layer and a second insulating layer are arranged outside the copper core combination, so that the compactness and the structural stability of the double-layer copper wires of each group are improved, and the integral corona-resistant and insulating high-temperature-resistant performance of the enameled wire is further improved.
Therefore, the utility model has the characteristics of the current-carrying capacity is big, stable in structure, mechanical properties is good, corona resistance can the reinforce.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
figure 2 is a schematic view of the structure of the strengthening layer.
The labels in the figures are: 1. a copper core wire; 2. a first insulating layer; 3. a first corona resistant layer; 4. a strengthening layer; 41. silica gel fiber; 42. carbon fibers; 5. a second corona resistant layer; 51. corona resistant particles; 6. a second insulating layer.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
Examples are given.
As shown in fig. 1-2, 240-grade aromatic polyimide enameled flat copper wire for iron driving motor, including the copper core combination that comprises the double-deck copper line that a plurality of groups are abreast, every double-deck copper line of group all includes upper and lower superimposed copper core 1, the outside of copper core 1 is equipped with first insulation layer 2, the outside of first insulation layer 2 is equipped with first corona-resistant layer 3, the outside cladding of first corona-resistant layer 3 has strengthening layer 4, the thickness that strengthening layer 4 is located 1 round angle department of copper core is greater than the thickness that strengthening layer 4 is located 1 plane of copper core, the outside cladding of copper core combination has second corona-resistant layer 5, the outside of second corona-resistant layer 5 is equipped with second insulation layer 6.
The first insulating layer 2 and the second insulating layer 6 are both aromatic polyimide varnish.
The reinforced layer 4 is formed by interweaving silica gel fibers 41 and carbon fibers 42, and the reinforced layer 4 is connected with the first corona-resistant layer 3 through self-adhesive. The strengthening layer 4 is formed by interweaving the silica gel fiber 41 and the carbon fiber 42, improves the flexibility, the mechanical strength and the thermal property of the enameled wire, enables the enameled wire to be wound more easily, has longer service life, improves the bonding strength with the first corona-resistant layer 3 and the second corona-resistant layer 5 due to uneven surface of the strengthening layer 4, and enables the inner and outer structures of the enameled wire to be more stable.
The second corona-resistant layer 5 and the second insulating layer 6 are uniformly provided with corona-resistant particles 51 at the interface. The corona-resistant particles 51 are arranged at the boundary between the second corona-resistant layer 5 and the second insulating layer 6, so that the corona-resistant capacity of the enameled wire is further improved, the connection strength between the second corona-resistant layer 5 and the second insulating layer 6 is higher, and the enameled wire is not easy to peel.
The utility model discloses a many copper core 1 make up, overall structure is compact, it is reasonable, improve the current-carrying capacity of enameled wire, every copper core 1's outside has all wrapped up first insulating layer 2, first corona-resistant layer 3 and strengthening layer 4, make every group double-deck copper line all have good insulating nature, corona-resistant and mechanical strength, can bear great load, and strengthening layer 4 protects copper core 1 fillet department focus, make the stability of size keep more easily when the enameled flat wire is crooked, creep resistance and resistant bending property are good, still improve the bonding strength with first corona-resistant layer 3, second corona-resistant layer 5, make the interior outer structure of copper enameled wire more stable; furthermore, a second corona-resistant layer 5 and a second insulating layer 6 are arranged outside the copper core combination, so that the compactness and the structural stability of the double-layer copper wires of each group are improved, and the corona resistance and the insulating high-temperature resistance of the whole enameled wire are further improved.
The part of the utility model not detailed is prior art.
Claims (4)
1. Subway is 240 grades of aromatic polyimide enameled rectangular copper wires for driving motor, its characterized in that: including the copper core combination that constitutes by the double-deck copper line that a plurality of groups parallel, every double-deck copper line of group all includes superimposed copper core (1) from top to bottom, the outside of copper core (1) is equipped with first insulation layer (2), the outside on first insulation layer (2) is equipped with first corona-resistant layer (3), the outside cladding on first corona-resistant layer (3) has strengthening layer (4), the thickness that strengthening layer (4) are located copper core (1) round angle department is greater than the thickness that strengthening layer (4) are located on copper core (1) plane, the outside cladding of copper core combination has second corona-resistant layer (5), the outside of second corona-resistant layer (5) is equipped with second insulating layer (6).
2. The 240-grade aromatic polyimide enameled rectangular copper wire for the subway drive motor according to claim 1, wherein: the first insulating layer (2) and the second insulating layer (6) are both made of aromatic polyimide varnish.
3. The 240-grade aromatic polyimide enameled rectangular copper wire for the subway drive motor according to claim 1, wherein: the reinforced layer (4) is formed by interweaving silica gel fibers (41) and carbon fibers (42), and the reinforced layer (4) is connected with the first corona-resistant layer (3) through self-adhesive.
4. The 240-grade aromatic polyimide enameled rectangular copper wire for the subway drive motor according to claim 1, wherein: corona-resistant particles (51) are uniformly arranged at the junction between the second corona-resistant layer (5) and the second insulating layer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022730559.3U CN213583174U (en) | 2020-11-23 | 2020-11-23 | 240-grade aromatic polyimide enameled rectangular copper wire for subway drive motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022730559.3U CN213583174U (en) | 2020-11-23 | 2020-11-23 | 240-grade aromatic polyimide enameled rectangular copper wire for subway drive motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213583174U true CN213583174U (en) | 2021-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022730559.3U Active CN213583174U (en) | 2020-11-23 | 2020-11-23 | 240-grade aromatic polyimide enameled rectangular copper wire for subway drive motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213583174U (en) |
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2020
- 2020-11-23 CN CN202022730559.3U patent/CN213583174U/en active Active
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