CN103812251A - Stator coil insulation structure with main insulation thickness of 1.4-1.6mm - Google Patents
Stator coil insulation structure with main insulation thickness of 1.4-1.6mm Download PDFInfo
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- CN103812251A CN103812251A CN201310675625.3A CN201310675625A CN103812251A CN 103812251 A CN103812251 A CN 103812251A CN 201310675625 A CN201310675625 A CN 201310675625A CN 103812251 A CN103812251 A CN 103812251A
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Abstract
The invention discloses a stator coil insulation structure with the main insulation thickness of 1.4-1.6mm, wherein the linear insulation part of the coil is composed of epoxy glass low-resin mice tapes being semi-laminated and wrapping in three layers and epoxy polyester film low-resin mice tapes being semi-laminated and wrapping in three layers; the end part insulation part of the coil is made of epoxy glass low-resin mice tapes being semi-laminated and wrapping in four layers; the outer layer of the epoxy polyester film low-resin mice tape is semi-laminated and wrapped with a layer of unidirectional breathable protection tape; each layer of epoxy polyester film low-resin mice tape of the end part insulation part and the linear part of the coil is formed into a reverse cone for lap jointing. According to the stator coil insulation structure with the main insulation thickness of 1.4-1.6mm, the coil leaves the production line after being wrapped with insulation, so that the work efficiency is greatly improved, the voltage resistance of the coil is improved, and meanwhile the medium loss is reduced, and thus the coil of a high-voltage asynchronous motor can operate stably and reliably for a long term, and prolong the service life.
Description
Technical field
The present invention is the insulation system of a kind of main insulation thickness stator coil that is 1.4～1.6mm, is the structure that is 1.4～1.6mm for the monolateral insulation thickness of 6kV high-voltage motor stator coil research and development.
Background technology
The neutral high-voltage motor insulated manufacture field of F level at home, adopt in a large number " the few whole VPI of soaking technique of glue " technology path this year always, the insulating material using is that non-forging is around muscovite isolit, be called for short few adhesive tape, its mica tape content is high, after wrapping insulation, do not need hot pressing directly to roll off the production line, adopt VPI vacuum pressure impregnation.This process characteristic is attenuate insulation thickness, improves copper factor, energy-saving and cost-reducing, raises the efficiency.Shortcoming is that expoxy glass low resin mica tape structure permeability is better, but proof voltage level is lower; And the proof voltage intensity of epoxy polyester film low resin mica tape is higher, but this structure permeability is poor compared with expoxy glass low resin mica tape, and dielectric loss is high.
Summary of the invention
For guaranteeing to the object of the invention is to overcome above-mentioned weak point, the insulation system of the stator coil that a kind of main insulation thickness is 1.4～1.6mm is provided, improve coil proof voltage level, reduce dielectric loss simultaneously, make the winding long time stability operation of high-voltage asynchronous motor, and increase its useful life.
Technical scheme provided by the invention is:
The insulation system of the stator coil that a kind of main insulation thickness is 1.4～1.6mm, include coil straight line insulated part, end winding insulated part, it is characterized in that: described coil straight line insulated part is by three layers of expoxy glass low resin mica tape (1) half-stack packages and three layers of formation of epoxy polyester film dry mica-paper tapes (2) half-stack package; Between expoxy glass low resin mica tape (1-1) and expoxy glass low resin mica tape (1-2), half-stack package one deck epoxy polyester film dry mica-paper tapes (2-1) is set, between expoxy glass low resin mica tape (1-2) and expoxy glass low resin mica tape (1-3), half-stack package one deck epoxy polyester film dry mica-paper tapes (2-2) is set, at expoxy glass low resin mica tape (1-3) outer half-stack package one deck epoxy polyester film dry mica-paper tapes (2-3), outermost layer half-stack package polyester belt (3) one deck; Described end winding insulated part adopts five layers of expoxy glass low resin mica tape (1) half-stack packages, at the outer half-stack package one deck one-way ventilating boundary belt of epoxy polyester film dry mica-paper tapes (4); Every one deck epoxy polyester film dry mica-paper tapes (2) of described end winding insulated part and coil straight line portion forms anti-cone overlap joint.
The insulation system of the stator coil that described main insulation thickness is 1.4～1.6mm; it is characterized in that: the both sides pad at described end winding insulated part lead-out wire place is established 7530-Z1 material (5) one deck, 7530-Z1 material (5) is fixing with three layers of one-way ventilating boundary belt (4) lap wounds with lead-in wire.
The insulation system of the stator coil that described main insulation thickness is 1.4～1.6mm, it is characterized in that: when described end winding insulation division subpackage lead wire insulation, its length is from (1/3～1/2) L place to end hypotenuse length L apart from nose 20～25mm, lead end is reinstated 1 layer of epoxy polyester film dry mica-paper tapes (2) half-stack package from lead-in wire root, with (1) four layer of expoxy glass low resin mica tape half-stack package, (two ends are bundled into cone to lead-in wire, long 40～the 60mm of taper), at its outside half-stack package polyester belt (3) one deck again.
The insulation system of the stator coil that described main insulation thickness is 1.4～1.6mm, is characterized in that: described polyester belt (3) stretches out core length 30mm, and described polyester belt (3) wrapping is cut into hypotenuse when starting, finishing up flushes its edges at two ends.
Advantage of the present invention is:
Coil of the present invention rolls off the production line after wrapping insulation, greatly enhances productivity; Improve coil proof voltage level, reduce dielectric loss simultaneously, make the winding long time stability operation of high-voltage asynchronous motor, and increase its useful life.
Accompanying drawing explanation
Fig. 1 is the structural representation of coil straight line insulated part of the present invention, end winding insulated part.
Fig. 2 is overall structure schematic diagram of the present invention.
Embodiment
As shown in Figure 1, 2, the insulation system of the stator coil that a kind of main insulation thickness is 1.4～1.6mm, include coil straight line insulated part, end winding insulated part, coil straight line insulated part is made up of with three layers of epoxy polyester film dry mica-paper tapes 2 half-stack packages three layers of expoxy glass low resin mica tape 1 half-stack packages; Half-stack package one deck epoxy polyester film dry mica-paper tapes 2-1 is set between expoxy glass low resin mica tape 1-1 and expoxy glass low resin mica tape 1-2, half-stack package one deck epoxy polyester film dry mica-paper tapes 2-2 is set between expoxy glass low resin mica tape 1-2 and expoxy glass low resin mica tape 1-3, at the outer half-stack package one deck of expoxy glass low resin mica tape 1-3 epoxy polyester film dry mica-paper tapes 2-3, outermost layer half-stack package polyester belt 3 one decks; Described end winding insulated part adopts five layers of expoxy glass low resin mica tape 1 half-stack packages, at the outer half-stack package one deck of epoxy polyester film dry mica-paper tapes one-way ventilating boundary belt 4; Every one deck epoxy polyester film dry mica-paper tapes 2 of described end winding insulated part and coil straight line portion forms anti-cone overlap joint.
The both sides pad at end winding insulated part lead-out wire place is established 7530-Z1 material 5 one decks, and 7530-Z1 material 5 is fixing with three layers of one-way ventilating boundary belt 4 lap wounds with lead-in wire.
When end winding insulation division subpackage lead wire insulation, its length is from (1/3～1/2) L place to end hypotenuse length L apart from nose 20～25mm, lead end is reinstated 1 layer of epoxy polyester film dry mica-paper tapes 2 half-stack package from lead-in wire root, with 1 four layers of expoxy glass low resin mica tape half-stack packages, (two ends are bundled into cone to lead-in wire, long 40～the 60mm of taper), at its outside half-stack package polyester belt 3 one decks again.
Claims (4)
1. the insulation system of the stator coil that a main insulation thickness is 1.4～1.6mm, include coil straight line insulated part, end winding insulated part, it is characterized in that: described coil straight line insulated part is by three layers of expoxy glass low resin mica tape (1) half-stack packages and three layers of formation of epoxy polyester film dry mica-paper tapes (2) half-stack package; Between expoxy glass low resin mica tape (1-1) and expoxy glass low resin mica tape (1-2), half-stack package one deck epoxy polyester film dry mica-paper tapes (2-1) is set, between expoxy glass low resin mica tape (1-2) and expoxy glass low resin mica tape (1-3), half-stack package one deck epoxy polyester film dry mica-paper tapes (2-2) is set, at expoxy glass low resin mica tape (1-3) outer half-stack package one deck epoxy polyester film dry mica-paper tapes (2-3), outermost layer half-stack package polyester belt (3) one deck; Described end winding insulated part adopts five layers of expoxy glass low resin mica tape (1) half-stack packages, at the outer half-stack package one deck one-way ventilating boundary belt of epoxy polyester film dry mica-paper tapes (4); Every one deck epoxy polyester film dry mica-paper tapes (2) of described end winding insulated part and coil straight line portion forms anti-cone overlap joint.
2. the insulation system of the stator coil that main insulation thickness as claimed in claim 1 is 1.4～1.6mm; it is characterized in that: the both sides pad at described end winding insulated part lead-out wire place is established 7530-Z1 material (5) one deck, 7530-Z1 material (5) is fixing with three layers of one-way ventilating boundary belt (4) lap wounds with lead-in wire.
3. the insulation system of the stator coil that main insulation thickness as claimed in claim 1 is 1.4～1.6mm, it is characterized in that: when described end winding insulation division subpackage lead wire insulation, its length is from (1/3～1/2) L place to end hypotenuse length L apart from nose 20～25mm, lead end is reinstated 1 layer of epoxy polyester film dry mica-paper tapes (2) half-stack package from lead-in wire root, (1) four layer of expoxy glass low resin mica tape half-stack package for lead-in wire, at its outside half-stack package polyester belt (3) one deck again.
4. the insulation system of the stator coil that main insulation thickness as claimed in claim 1 is 1.4～1.6mm, it is characterized in that: described polyester belt (3) stretches out core length 30mm, described polyester belt (3) wrapping is cut into hypotenuse when starting, finishing up flushes its edges at two ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675625.3A CN103812251A (en) | 2013-12-11 | 2013-12-11 | Stator coil insulation structure with main insulation thickness of 1.4-1.6mm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675625.3A CN103812251A (en) | 2013-12-11 | 2013-12-11 | Stator coil insulation structure with main insulation thickness of 1.4-1.6mm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103812251A true CN103812251A (en) | 2014-05-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310675625.3A Pending CN103812251A (en) | 2013-12-11 | 2013-12-11 | Stator coil insulation structure with main insulation thickness of 1.4-1.6mm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103812251A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449898A (en) * | 2015-12-29 | 2016-03-30 | 安徽威能电机有限公司 | High-tension stator coil insulation structure |
| CN105471149A (en) * | 2015-12-21 | 2016-04-06 | 安徽威能电机有限公司 | Insulating structure of 690 V low-voltage high-power molding stator coil |
-
2013
- 2013-12-11 CN CN201310675625.3A patent/CN103812251A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471149A (en) * | 2015-12-21 | 2016-04-06 | 安徽威能电机有限公司 | Insulating structure of 690 V low-voltage high-power molding stator coil |
| CN105449898A (en) * | 2015-12-29 | 2016-03-30 | 安徽威能电机有限公司 | High-tension stator coil insulation structure |
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140521 |