CN105262296A - High-voltage motor stator coil insulation manufacturing method - Google Patents
High-voltage motor stator coil insulation manufacturing method Download PDFInfo
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- CN105262296A CN105262296A CN201510836967.8A CN201510836967A CN105262296A CN 105262296 A CN105262296 A CN 105262296A CN 201510836967 A CN201510836967 A CN 201510836967A CN 105262296 A CN105262296 A CN 105262296A
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- coil
- polyester film
- straight line
- insulation
- micafolium
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Abstract
The invention relates to a high-voltage motor stator coil insulation manufacturing method. The stator coil comprises a straight line part of the coil and an end part of the coil; transition between the straight line part of the coil and the end part of the coil is realized through an oblique edge of the coil; insulation outside the straight line part of the coil is polyester film foil mica; the width and the length of the polyester film foil mica are matched with the length of the straight line part of the coil and the insulation thickness; the polyester film foil mica is rolled and wrapped on the outer surface of the straight line part of the coil; and a polyester film mica tape is wrapped and laminated on the outer surface of the coil to form an insulation layer outside other parts of the coil. According to insulation at the original straight line part of the coil, laminated wrapping of the polyester film mica tape is changed into rolled wrapping of the polyester film foil mica, hidden insulation dangers at the laminated wrapping joint place can be eliminated, electrical strength of the insulation structure with unit thickness is enhanced, the size of the motor is narrowed under the same motor power, production materials are saved, and the production cost is reduced.
Description
Technical field
The present invention relates to field of motor manufacturing, particularly relate to a kind of high-voltage motor stator coil insulation manufacture method.
Background technology
Energy-efficient compact(ing) machine will be the future development main trend of motor product, and thickness of motor main insulation thickness can effectively improve groove utilance, reduces motor volume, realizes the energy-efficient of motor.Generator stator winding insulation refers to coil of stator of motor insulation against ground, and motor coil is as the core component of motor, and its technical merit directly has influence on design of electrical motor parameter and operational reliability.
At present, the fixed subcoil insulating method of energy-efficient compact(ing) machine is generally: its main insulation all adopts low resin mica tape half-stack package technique.According to knowhow, no matter be manual wrapping low resin mica tape or numerically controlled machine wrapping, all there is packet stack rate positive and negative deviation, if positive missionary society produces lap-joint's thickening phenomenon, affect insulation size; If minus tolerance can produce lap-joint's insulative air gap, cause insulation defect.Therefore generally need leave larger insulation surplus when insulating Design, guarantee the stability of insulation system, the monolateral thickness of main insulation of current domestic 6kV high-voltage motor stator coil is generally 1.3 ~ 1.5mm.
Summary of the invention
The object of the invention is to overcome above defect, provide that a kind of main insulation thickness is even, size is reliable and reduce the high-voltage motor stator coil insulation manufacture method of monolateral insulation thickness.
Technical scheme of the present invention is: a kind of high-voltage motor stator coil insulation manufacture method, its stator coil comprises straight line portion and the overhang of coil, the straight line portion of coil and overhang are by the hypotenuse transition of coil, insulation outside the straight line portion of described coil is polyester film micafolium, length and the insulation thickness of the width of described polyester film micafolium and the straight line portion of length and coil match, described polyester film micafolium is that wraparound is at coil straight line portion outer surface, insulating barrier outside the other parts of coil by the stacked package of polyester film mica tape at coil outer surface.
Preferably, described polyester film micafolium is 0.7mm.
Preferably, described polyester film micafolium is that 5 wraparounds are at coil straight line portion outer surface.
Preferably, the width of described line polyester film micafolium is greater than the length of coil straight line portion, and the polyester film micafolium of described wraparound and the lap-joint of wrapped polyester film mica tape are at the hypotenuse place of coil.
Advantageous Effects of the present invention is, the insulation of original coil line part office is changed into the wraparound of polyester film micafolium by the stacked package of polyester film mica tape, eliminate stacked package lap-joint insulation hidden danger, thus the electrical strength of the insulation system of unit thickness is promoted, reach and reduce motor volume, saving production material, reduction production cost under equivalent motor power, the target of lifting motor power under same motor volume.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
A kind of high-voltage motor stator coil insulation manufacture method, it comprises straight line portion and the overhang of coil, the straight line portion of coil and overhang are by the hypotenuse transition of coil, insulation outside the straight line portion of described coil is the polyester film micafolium that 0.14mm is thick, the width of described line polyester film micafolium is greater than the length of coil straight line portion, described polyester film micafolium is that 5 wraparounds are at coil straight line portion outer surface, namely the monolateral thickness of the insulation of straight line portion is 0.7mm, insulating barrier outside the other parts of coil by polyester film mica tape stacked package 3 times at coil outer surface, the width of described line polyester film micafolium is greater than the length of coil straight line portion, the polyester film micafolium of described wraparound and the lap-joint of wrapped polyester film mica tape are at the hypotenuse place of coil.
Claims (5)
1. a high-voltage motor stator coil insulation manufacture method, its stator coil comprises straight line portion and the overhang of coil, the straight line portion of coil and overhang are by the hypotenuse transition of coil, it is characterized in that, insulation outside the straight line portion of described coil is polyester film micafolium, length and the insulation thickness of the width of described polyester film micafolium and the straight line portion of length and coil match, described polyester film micafolium is that wraparound is at coil straight line portion outer surface, insulating barrier outside the other parts of coil by the stacked package of polyester film mica tape at coil outer surface.
2. a kind of high-voltage motor stator coil insulation manufacture method according to claim 1, it is characterized in that, described polyester film micafolium is 0.7mm.
3., according to a kind of high-voltage motor stator coil insulation manufacture method according to claim 1 or claim 2, it is characterized in that, described polyester film micafolium is that 5 wraparounds are at coil straight line portion outer surface.
4. according to a kind of high-voltage motor stator coil insulation manufacture method according to claim 1 or claim 2, it is characterized in that, the width of described line polyester film micafolium is greater than the length of coil straight line portion, and the polyester film micafolium of described wraparound and the lap-joint of wrapped polyester film mica tape are at the hypotenuse place of coil.
5. a kind of high-voltage motor stator coil insulation manufacture method according to claim 3, it is characterized in that, the width of described line polyester film micafolium is greater than the length of coil straight line portion, and the polyester film micafolium of described wraparound and the lap-joint of wrapped polyester film mica tape are at the hypotenuse place of coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510836967.8A CN105262296A (en) | 2015-11-26 | 2015-11-26 | High-voltage motor stator coil insulation manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510836967.8A CN105262296A (en) | 2015-11-26 | 2015-11-26 | High-voltage motor stator coil insulation manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105262296A true CN105262296A (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510836967.8A Pending CN105262296A (en) | 2015-11-26 | 2015-11-26 | High-voltage motor stator coil insulation manufacturing method |
Country Status (1)
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| CN (1) | CN105262296A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09308160A (en) * | 1996-05-14 | 1997-11-28 | Fuji Electric Co Ltd | Insulation coil of stator of high-voltage rotating machine |
| CN101951087A (en) * | 2010-09-15 | 2011-01-19 | 杨存高 | Method for manufacturing ground insulation layer of high-voltage motor stator coil, high-voltage motor stator coil and high-voltage motor |
| CN102983655A (en) * | 2012-12-29 | 2013-03-20 | 湘潭电机股份有限公司 | Insulation structure for motor stator coils |
| CN102983654A (en) * | 2012-05-21 | 2013-03-20 | 上海同立电工材料有限公司 | 6 kilovolt level high-voltage motor insulation structure and manufacturing method thereof |
| CN103296811A (en) * | 2013-05-29 | 2013-09-11 | 苏州巨峰电气绝缘***股份有限公司 | Interturn insulating structure of super-thin 6kV high-voltage motor and manufacturing method of interturn insulating structure |
| CN204810025U (en) * | 2015-05-29 | 2015-11-25 | 江苏锡安达防爆股份有限公司 | 6kV high pressure three -phase asynchronous motor circle formula stator coil insulation system |
-
2015
- 2015-11-26 CN CN201510836967.8A patent/CN105262296A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09308160A (en) * | 1996-05-14 | 1997-11-28 | Fuji Electric Co Ltd | Insulation coil of stator of high-voltage rotating machine |
| CN101951087A (en) * | 2010-09-15 | 2011-01-19 | 杨存高 | Method for manufacturing ground insulation layer of high-voltage motor stator coil, high-voltage motor stator coil and high-voltage motor |
| CN102983654A (en) * | 2012-05-21 | 2013-03-20 | 上海同立电工材料有限公司 | 6 kilovolt level high-voltage motor insulation structure and manufacturing method thereof |
| CN102983655A (en) * | 2012-12-29 | 2013-03-20 | 湘潭电机股份有限公司 | Insulation structure for motor stator coils |
| CN103296811A (en) * | 2013-05-29 | 2013-09-11 | 苏州巨峰电气绝缘***股份有限公司 | Interturn insulating structure of super-thin 6kV high-voltage motor and manufacturing method of interturn insulating structure |
| CN204810025U (en) * | 2015-05-29 | 2015-11-25 | 江苏锡安达防爆股份有限公司 | 6kV high pressure three -phase asynchronous motor circle formula stator coil insulation system |
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Application publication date: 20160120 |
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| WD01 | Invention patent application deemed withdrawn after publication |