CN203118563U - Composite enameled wire resistant to high-frequency pulses - Google Patents
Composite enameled wire resistant to high-frequency pulses Download PDFInfo
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- CN203118563U CN203118563U CN 201320078942 CN201320078942U CN203118563U CN 203118563 U CN203118563 U CN 203118563U CN 201320078942 CN201320078942 CN 201320078942 CN 201320078942 U CN201320078942 U CN 201320078942U CN 203118563 U CN203118563 U CN 203118563U
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Abstract
The utility model discloses a composite enameled wire resistant to high-frequency pulses. The composite enameled wire comprises a metal wire core and a polyester layer coated on the surface of the metal wire core, wherein the outer surface of the polyester layer is coated with a polyamide-imide coating, the metal wire core is composed of a stainless steel wire core located in the center and a copper layer wrapping the outer surface of the stainless steel wire core, the outer surface of the polyamide-imide coating is coated with a polyurethane layer, and the ratio of the diameter of the stainless steel wire core to the thickness of the copper layer is 1:0.1-0.2. The composite enameled wire has very high corona-resistant performance, the pulse-resistant service life is greatly improved compared with the existing product, and the flexibility, extensibility and tensile strength of products are improved.
Description
Technical field
The utility model relates to a kind of composite enameled wire of anti-high-frequency impulse, belongs to the enamelled wire technical field.
Background technology
The existing enamelled wire that is coated with polyester layer has good adhesive force, insulating properties and mechanical performance, but its anti-high-frequency impulse poor-performing, in recent years, along with developing rapidly of variable-frequency control technique, the application of variable-frequency motor more and more widely, especially alternating-current variable frequency motor, electricity was impulse wave when alternating-current variable frequency motor used, waveform has towering spike, and have precipitous rise time and a high frequency, the existing enamelled wire that is coated with polyester layer is used on this alternating-current variable frequency motor, and a little less than the ability of anti-high frequency and momentary pulse peak voltage, the enamelled wire winding is easy to take place the breakdown between adjacent turns phenomenon, shortened motor useful life, under these circumstances, the exploitation of the enamelled wire of the anti-high-frequency impulse that variable-frequency motor is used becomes the direction that those of ordinary skills make great efforts.
Summary of the invention
The utility model purpose provides a kind of composite enameled wire of anti-high-frequency impulse, and this composite enameled wire has very high anti-corona performance, and anti-relative existing product of pulse life-span has obtained promoting greatly; Product flexibility, ductility and pull resistance have also been improved simultaneously.
For achieving the above object, the technical solution adopted in the utility model is: a kind of composite enameled wire of anti-high-frequency impulse comprises the metal core and is coated on its surperficial polyester layer that described polyester layer outer surface is coated with a polyamidoimide coating; Described metal core is made up of the copper layer of the stainless steel core that is positioned at the center and this stainless steel wire core outer surface of coating.
Further improved technical scheme is as follows in the technique scheme:
As preferably, described polyamidoimide coating outer surface is coated with layer of polyurethane.
As preferably, described stainless steel wire core diameter and copper layer thickness are than being 1:0.1 ~ 0.2.
Because technique scheme is used, the utility model compared with prior art has following advantage and effect:
The composite enameled wire of the anti-high-frequency impulse of the utility model, its metal core and be coated on its surperficial polyester layer, described polyester layer outer surface is coated with a polyamidoimide coating, has very high anti-corona performance, correlation test proves, the anti-pulse life-span of this enamelled wire is about 10 times of other enamelled wire, has played to prolong the useful life of motor and energy-conservation effect the instructions for use of variable-frequency motor fully; Secondly, described polyamidoimide coating outer surface is coated with layer of polyurethane, the raising to a certain degree that thermal endurance, insulating properties, machinery and the chemical-resistance of enameled wire coat integral body have been obtained; Again, its metal core is made up of the copper layer of the stainless steel core that is positioned at the center and this stainless steel wire core outer surface of coating; Compare with the annealing temperature of using enamel covered wire in the past, annealing region is narrower, the annealing process difference, and the flexibility of the product of production, ductility, pull resistance all are in preferable states.
Description of drawings
Accompanying drawing 1 is the composite enameled wire structural representation of the anti-high-frequency impulse of the utility model.
In the above accompanying drawing: 1, metal core; 2, polyester layer; 3, polyamidoimide coating; 4, layer of polyurethane; 5, stainless steel core; 6, copper layer.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment 1: a kind of composite enameled wire of anti-high-frequency impulse comprises metal core 1 and is coated on its surperficial polyester layer 2 that described polyester layer 2 outer surfaces are coated with a polyamidoimide coating 3; Described metal core 1 is made up of the copper layer 6 of the stainless steel core 5 that is positioned at the center and these stainless steel core 5 outer surfaces of coating.
Above-mentioned polyamidoimide coating 3 outer surfaces are coated with layer of polyurethane 4; Above-mentioned stainless steel core 5 diameters are 1:0.15 with copper layer 6 thickness ratio.
Embodiment 2: a kind of composite enameled wire of anti-high-frequency impulse comprises metal core 1 and is coated on its surperficial polyester layer 2 that described polyester layer 2 outer surfaces are coated with a polyamidoimide coating 3; Described metal core 1 is made up of the copper layer 6 of the stainless steel core 5 that is positioned at the center and these stainless steel core 5 outer surfaces of coating.
Above-mentioned stainless steel core 5 diameters are 1:0.2 with copper layer 6 thickness ratio.
When adopting the composite enameled wire of above-mentioned anti-high-frequency impulse, its metal core 1 and be coated on its surperficial polyester layer 2, described polyester layer 2 outer surfaces are coated with a polyamidoimide coating 3, has very high anti-corona performance, correlation test proves, the anti-pulse life-span of this enamelled wire is about 10 times of other enamelled wire, has played to prolong the useful life of motor and energy-conservation effect the instructions for use of variable-frequency motor fully; Secondly, described polyamidoimide coating 3 outer surfaces are coated with layer of polyurethane 4, the raising to a certain degree that thermal endurance, insulating properties, machinery and the chemical-resistance of enameled wire coat integral body have been obtained.
Use the composite enameled wire of the anti-high-frequency impulse of this enforcement structure, by the multiple pulses life test, the pulse life-span can reach more than 27 hours or be higher, and existing conventional enamelled wire had only about 3 ~ 4 hours.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model spirit essence change or modify, and all should be encompassed within the protection range of the present utility model.
Claims (3)
1. the composite enameled wire of an anti-high-frequency impulse comprises metal core (1) and is coated on its surperficial polyester layer (2), and it is characterized in that: described polyester layer (2) outer surface is coated with a polyamidoimide coating (3); Described metal core (1) is made up of the copper layer (6) of the stainless steel core (5) that is positioned at the center and this stainless steel core (5) outer surface of coating.
2. composite enameled wire according to claim 1, it is characterized in that: described polyamidoimide coating (3) outer surface is coated with layer of polyurethane (4).
3. composite enameled wire according to claim 1 is characterized in that: described stainless steel core (5) diameter and copper layer (6) thickness are than being 1:0.1 ~ 0.2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320078942 CN203118563U (en) | 2013-02-20 | 2013-02-20 | Composite enameled wire resistant to high-frequency pulses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320078942 CN203118563U (en) | 2013-02-20 | 2013-02-20 | Composite enameled wire resistant to high-frequency pulses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203118563U true CN203118563U (en) | 2013-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320078942 Expired - Fee Related CN203118563U (en) | 2013-02-20 | 2013-02-20 | Composite enameled wire resistant to high-frequency pulses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203118563U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979047A (en) * | 2015-06-09 | 2015-10-14 | 湖州三行线缆有限公司 | High frequency enamelled wire |
-
2013
- 2013-02-20 CN CN 201320078942 patent/CN203118563U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979047A (en) * | 2015-06-09 | 2015-10-14 | 湖州三行线缆有限公司 | High frequency enamelled wire |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130807 Termination date: 20150220 |
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| EXPY | Termination of patent right or utility model |