CN103683614A - Insulation structure of stator coil with 1.0-1.2 mm main insulation thickness - Google Patents
Insulation structure of stator coil with 1.0-1.2 mm main insulation thickness Download PDFInfo
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- CN103683614A CN103683614A CN201310675802.8A CN201310675802A CN103683614A CN 103683614 A CN103683614 A CN 103683614A CN 201310675802 A CN201310675802 A CN 201310675802A CN 103683614 A CN103683614 A CN 103683614A
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- insulated part
- epoxy polyester
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- polyester film
- coil
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Abstract
The invention discloses an insulation structure of a stator coil with 1.0-1.2 mm main insulation thickness. The insulation structure comprises a coil straight line insulation portion and a coil end insulation portion. The coil straight line insulation portion is formed by four layers of epoxy polyester film low resin mica tapes (1) in a half-fold wrapped mode, and one layer of low-resistance tape (2) is wrapped on the outer layer of each epoxy polyester film low resin mica tape (1) in a half-fold mode; the coil end insulation portion is formed by three layers of the epoxy polyester film low resin mica tapes (1) in a half-fold wrapped mode, and one layer of one-way breathable protective tape (4) is wrapped on the outer layer of each epoxy polyester film low resin mica tape (1) in a half-fold mode; the coil end insulation portion is in lap joint with each layer of epoxy polyester film low resin mica tape (1) of the coil straight line insulation portion in a reverse cone mode. The stator coil is fed after the insulation portions are wrapped on the stator coil, and production efficiency is greatly improved; the operational reliability of high-voltage asynchronous motors can be well guaranteed.
Description
Technical field
The present invention relates to high-voltage motor insulated manufacture field, the insulation system of the stator coil that specifically a kind of main insulation thickness is 1.0～1.2mm, it is the structure that the monolateral insulation thickness for 6kV high-voltage motor stator coil research and development is 1.0～1.2mm, use and few glue VPI(vacuum pressure impregnation) technique, can guarantee preferably the operation stability of high-voltage asynchronous motor.
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, it has many advantages, as being applicable to craft or the wrapping of machine bag, operating efficiency is high, it is compatible with the cinnamic impregnating resin of epoxy polyester, its dielectric strength of structure after insulation processing completes, mechanical strength and moisture resistance, decay resistance is all good, thermal conductivity is good, contribute to again to reduce electric machine temperature rise, and there are good mechanical performance and dielectric property.
Summary of the invention
The invention provides the insulation system of the stator coil that a kind of main insulation thickness is 1.0～1.2mm, the wrapped number of plies of its thickness and material is all carried out strict control, makes electrical property excellent, and hot dielectric loss is low; Insulation breakdown level obviously improves, and makes the insulation system of high-voltage asynchronous motor be suitable for stable long-term operation.
Technical scheme provided by the invention is:
The insulation system of the stator coil that a kind of main insulation thickness is 1.0～1.2mm, include coil straight line insulated part, end winding insulated part, it is characterized in that: described coil straight line insulated part is by four layers of formation of epoxy polyester film dry mica-paper tapes (1) half-stack package, at the outer half-stack package low-resistance belt of described epoxy polyester film dry mica-paper tapes (1) (2) one deck; Described end winding insulated part adopts three layers of epoxy polyester film dry mica-paper tapes (1) half-stack packages, at epoxy polyester film dry mica-paper tapes (1) outer half-stack package one deck one-way ventilating boundary belt (4); Every one deck epoxy polyester film dry mica-paper tapes (1) of described end winding insulated part and coil straight line insulated part forms anti-cone overlap joint.
The insulation system of the stator coil that described main insulation thickness is 1.0～1.2mm; it is characterized in that: the high stopband of half-stack package one deck (3) outside the corner that described end winding insulated part is connected with coil straight line insulated part, high stopband (3) initiating terminal is to outer half-stack package one-way ventilating boundary belt (4) one deck of whole end winding insulated part.
The insulation system of the stator coil that described main insulation thickness is 1.0～1.2mm; 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 lap wounds with lead-in wire.
The insulation system of the stator coil that described main insulation thickness is 1.0～1.2mm, it is characterized in that: during described end winding insulation division subpackage lead wire insulation, its length from apart from nose 20～25mm to (1/3～1/2) L place of end hypotenuse length L, lead end is reinstated 1 layer of epoxy polyester low resin mica tape half-stack package from lead-in wire root, three layers of epoxy polyester low resin mica tape (1) half-stack packages for lead-in wire, two ends are bundled into cone, the long 40～60mm of taper; At its outside half-stack package one-way ventilating boundary belt (4) one deck again.
The insulation system of the stator coil that described main insulation thickness is 1.0～1.2mm, is characterized in that: described low-resistance belt (2) stretches out core length 30mm, and described low-resistance belt (2) 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; Can guarantee preferably the operational reliability of high-voltage asynchronous motor.
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 1.0～1.2mm, include coil straight line insulated part, end winding insulated part, coil straight line insulated part consists of four layers of epoxy polyester film dry mica-paper tapes 1 half-stack packages, at outer half-stack package low-resistance belt 2 one decks of epoxy polyester film dry mica-paper tapes 1; Described end winding insulated part adopts three layers of epoxy polyester film dry mica-paper tapes 1 half-stack packages, at the outer half-stack package one deck of epoxy polyester film dry mica-paper tapes 1 one-way ventilating boundary belt 4; Every one deck epoxy polyester film dry mica-paper tapes 1 of end winding insulated part and coil straight line insulated part forms anti-cone overlap joint.
The high stopband 3 of half-stack package one deck outside the corner that end winding insulated part is connected with coil straight line insulated part, high stopband 3 initiating terminals are to the outer half-stack package one-way ventilating of whole end winding insulated part boundary belt 4 one decks.
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 lap wounds with lead-in wire.
During end winding insulation division subpackage lead wire insulation, its length from apart from nose 20～25mm to (1/3～1/2) L place of end hypotenuse length L, lead end is reinstated 1 layer of epoxy polyester low resin mica tape half-stack package from lead-in wire root, three layers of epoxy polyester low resin mica tape 1 half-stack packages for lead-in wire, two ends are bundled into cone, the long 40～60mm of taper; At its outside half-stack package one-way ventilating boundary belt 4 one decks again.
Low-resistance belt 2 stretches out core length 30mm, and low-resistance belt 2 wrappings are cut into hypotenuse when starting, finishing up flushes its edges at two ends.
Claims (5)
1. the insulation system of the stator coil that a main insulation thickness is 1.0～1.2mm, include coil straight line insulated part, end winding insulated part, it is characterized in that: described coil straight line insulated part is by four layers of formation of epoxy polyester film dry mica-paper tapes (1) half-stack package, at the outer half-stack package low-resistance belt of described epoxy polyester film dry mica-paper tapes (1) (2) one deck; Described end winding insulated part adopts three layers of epoxy polyester film dry mica-paper tapes (1) half-stack packages, at epoxy polyester film dry mica-paper tapes (1) outer half-stack package one deck one-way ventilating boundary belt (4); Every one deck epoxy polyester film dry mica-paper tapes (1) of described end winding insulated part and coil straight line insulated part forms anti-cone overlap joint.
2. the insulation system of the stator coil that main insulation thickness as claimed in claim 1 is 1.0～1.2mm; it is characterized in that: the high stopband of half-stack package one deck (3) outside the corner that described end winding insulated part is connected with coil straight line insulated part, high stopband (3) initiating terminal is to outer half-stack package one-way ventilating boundary belt (4) one deck of whole end winding insulated part.
3. the insulation system of the stator coil that main insulation thickness as claimed in claim 1 is 1.0～1.2mm; 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 lap wounds with lead-in wire.
4. the insulation system of the stator coil that main insulation thickness as claimed in claim 1 is 1.0～1.2mm, it is characterized in that: during described end winding insulation division subpackage lead wire insulation, its length from apart from nose 20～25mm to (1/3～1/2) L place of end hypotenuse length L, lead end is reinstated 1 layer of epoxy polyester low resin mica tape half-stack package from lead-in wire root, three layers of epoxy polyester low resin mica tape (1) half-stack packages for lead-in wire, two ends are bundled into cone, the long 40～60mm of taper; At its outside half-stack package one-way ventilating boundary belt (4) one deck again.
5. the insulation system of the stator coil that main insulation thickness as claimed in claim 1 is 1.0～1.2mm, it is characterized in that: described low-resistance belt (2) stretches out core length 30mm, described low-resistance belt (2) 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 |
|---|---|---|---|
| CN201310675802.8A CN103683614A (en) | 2013-12-11 | 2013-12-11 | Insulation structure of stator coil with 1.0-1.2 mm main insulation thickness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310675802.8A CN103683614A (en) | 2013-12-11 | 2013-12-11 | Insulation structure of stator coil with 1.0-1.2 mm main insulation thickness |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103683614A true CN103683614A (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310675802.8A Pending CN103683614A (en) | 2013-12-11 | 2013-12-11 | Insulation structure of stator coil with 1.0-1.2 mm main insulation thickness |
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| CN (1) | CN103683614A (en) |
Cited By (1)
| 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 |
-
2013
- 2013-12-11 CN CN201310675802.8A patent/CN103683614A/en active Pending
Cited By (1)
| 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 |
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Application publication date: 20140326 |
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| WD01 | Invention patent application deemed withdrawn after publication |