CN105471149A - Insulating structure of 690 V low-voltage high-power molding stator coil - Google Patents
Insulating structure of 690 V low-voltage high-power molding stator coil Download PDFInfo
- Publication number
- CN105471149A CN105471149A CN201510975320.3A CN201510975320A CN105471149A CN 105471149 A CN105471149 A CN 105471149A CN 201510975320 A CN201510975320 A CN 201510975320A CN 105471149 A CN105471149 A CN 105471149A
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- Prior art keywords
- intertexture
- belt
- coil
- glass
- low
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/34—Windings characterised by the shape, form or construction of the insulation between conductors or between conductor and core, e.g. slot insulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/32—Windings characterised by the shape, form or construction of the insulation
- H02K3/38—Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The present invention discloses an insulating structure of a 690 V low-voltage high-power molding stator coil. The insulating structure comprises a coil body, wherein the coil body comprises a coil straight line portion and a coil end portion. The coil straight line portion and the coil end portion are wound with a first half-lapped epoxy polyester thin-film dry mica tape layer separately, and each first half-lapped epoxy polyester thin-film dry mica tape layer is wound with a corresponding first half-lapped polyester-glass interwoven band layer; and the first epoxy polyester thin-film dry mica tape layers of the coil end portion and the coil straight line portion overlap each other by a reverse cone. After wrapping the coil with the insulating structure, the production of the coil is completed, thereby greatly improving production efficiency; and the thickness of the insulating structure is reduced, so that temperature rising of a low-voltage high-power asynchronous motor can be effectively reduced, and reliability of operation of the motor is improved.
Description
Technical field
The insulation system of the present invention's to be a kind of main insulation thickness be 690V low-pressure high-power molded stator coil of 0.65mm, be for 690V low-voltage high-power motor molded stator coil research and development monolateral insulation thickness be the structure of 0.65mm, use and few glue VPI(vacuum pressure impregnation) technique, the operation stability of high-voltage asynchronous motor can be ensured preferably.
Background technology
The manufacture field of F level low-voltage high-power motor insulation at home, adopt " few glue whole leaching VPI technique " technology path in recent years always, the insulating material used is that non-forging is around muscovite isolit, be called for short few adhesive tape, it has many advantages, as applicable craft or machine handbag are pricked, 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, contributes to again reducing electric machine temperature rise, and has excellent mechanical performance and dielectric property.
Summary of the invention
The present invention, in order to make up the defect of prior art, provides the insulation system that a kind of insulation thickness is the 690V low-pressure high-power molded stator coil of 0.65mm.
Technical scheme provided by the invention:
A kind of insulation system of 690V low-pressure high-power molded stator coil, include coil case, coil case comprises coil straight line portion and end winding, it is characterized in that: coil straight line portion and end winding are wound with the epoxy polyester film dry mica-paper tapes layer one of half-stack package respectively, what be wound with half-stack package outside epoxy polyester film dry mica-paper tapes layer one respectively washs glass intertexture belt one; For inverted cone body overlaps between the epoxy polyester film dry mica-paper tapes layer one of described end winding and coil straight line portion.
A kind of insulation system of 690V low-pressure high-power molded stator coil, it is characterized in that: between described coil straight line portion and end winding, have angle section, described angle section wash that glass intertexture belt one is around with half-stack package wash glass intertexture belt two, what initiating terminal to the whole end winding skin washing glass intertexture belt two was wound with half-stack package washs glass intertexture belt three.
An insulation system for 690V low-pressure high-power molded stator coil, is characterized in that: polyester fiber carpet veneer established by the outer pad of glass intertexture belt three of washing at the lead-out wire position of described end winding, and polyester fiber carpet veneer washs glass intertexture belt four with the outer lap wound of lead-in wire.
A kind of insulation system of 690V low-pressure high-power molded stator coil, it is characterized in that: epoxy polyester film dry mica-paper tapes layer one includes two-layer, wash glass intertexture belt one, wash glass intertexture belt two, wash glass intertexture belt three and be one deck, wash glass intertexture belt four and comprise three layers.
The epoxy polyester film dry mica-paper tapes layer one at coil straight line position and wash glass intertexture belt one and form the insulation of coil straight line, the epoxy polyester film dry mica-paper tapes layer one of end winding and wash glass intertexture belt one and form end winding insulation.
During overhang insulation part bag lead wire insulation, its length is from (1/3 ~ 1/2) the L place to end hypotenuse length L apart from nose 20 ~ 25mm place, and lead end reinstates epoxy polyester low resin mica tape half-stack package 1 layer from lead-in wire root.Lead-in wire epoxy polyester low resin mica tape half-stack package three layers (two ends are bundled into cone, the long 40 ~ 60mm of taper), outside it, half-stack package washs glass intertexture band one deck again.
Described glass intertexture band of washing stretches out core length 30mm, described in wash the glass band wrapping that interweaves and start, be cut into hypotenuse when finishing up its edges at two ends is flushed.
Advantage of the present invention:
Reasonable in design of the present invention, the wrapped number of plies of its thickness and material all carries out strict control, not affecting under electrical property prerequisite, reduces insulation thickness, improves the heat-sinking capability of coil; The temperature rise of low-pressure high-power asynchronous machine is reduced.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation in this coil bent bight.
Fig. 3 is the structural representation at coil position.
embodiment:
A kind of insulation system of 690V low-pressure high-power molded stator coil, include coil case, coil case comprises coil straight line portion 6 and end winding 7, coil straight line portion 6 and end winding 7 are wound with the epoxy polyester film dry mica-paper tapes layer 1 of half-stack package respectively, and what be wound with half-stack package outside epoxy polyester film dry mica-paper tapes layer 1 respectively washs glass intertexture belt 1; For inverted cone body overlaps between described end winding 7 and the epoxy polyester film dry mica-paper tapes layer 1 of coil straight line portion 6.
Angle section is had between coil straight line portion 6 and end winding 7, described angle section wash that glass intertexture belt 1 is around with half-stack package wash glass intertexture belt 23, what initiating terminal to the whole end winding skin washing glass intertexture belt 23 was wound with half-stack package washs glass intertexture belt 34.
Polyester fiber carpet veneer 5 established by the outer pad of glass intertexture belt 34 of washing at the lead-out wire position of described end winding, and polyester fiber carpet veneer 5 washs glass intertexture belt 48 with the outer lap wound of lead-in wire.
Epoxy polyester film dry mica-paper tapes layer 1 includes two-layer, washs glass intertexture belt one, washs glass intertexture belt two, washs glass intertexture belt three and be one deck, wash glass intertexture belt 48 and comprise three layers.
Claims (4)
1. the insulation system of a 690V low-pressure high-power molded stator coil, include coil case, coil case comprises coil straight line portion and end winding, it is characterized in that: coil straight line portion and end winding are wound with the epoxy polyester film dry mica-paper tapes layer one of half-stack package respectively, what be wound with half-stack package outside epoxy polyester film dry mica-paper tapes layer one respectively washs glass intertexture belt one; For inverted cone body overlaps between the epoxy polyester film dry mica-paper tapes layer one of described end winding and coil straight line portion.
2. the insulation system of a kind of 690V low-pressure high-power molded stator coil according to claim 1, it is characterized in that: between described coil straight line portion and end winding, have angle section, described angle section wash that glass intertexture belt one is around with half-stack package wash glass intertexture belt two, what initiating terminal to the whole end winding skin washing glass intertexture belt two was wound with half-stack package washs glass intertexture belt three.
3. the insulation system of a kind of 690V low-pressure high-power molded stator coil according to claim 1, it is characterized in that: polyester fiber carpet veneer established by the outer pad of glass intertexture belt three of washing at the lead-out wire position of described end winding, and polyester fiber carpet veneer washs glass intertexture belt four with the outer lap wound of lead-in wire.
4. the insulation system of a kind of 690V low-pressure high-power molded stator coil according to claim 1, it is characterized in that: epoxy polyester film dry mica-paper tapes layer one includes two-layer, wash glass intertexture belt one, wash glass intertexture belt two, wash glass intertexture belt three and be one deck, wash glass intertexture belt four and comprise three layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510975320.3A CN105471149A (en) | 2015-12-21 | 2015-12-21 | Insulating structure of 690 V low-voltage high-power molding stator coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510975320.3A CN105471149A (en) | 2015-12-21 | 2015-12-21 | Insulating structure of 690 V low-voltage high-power molding stator coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105471149A true CN105471149A (en) | 2016-04-06 |
Family
ID=55608573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510975320.3A Pending CN105471149A (en) | 2015-12-21 | 2015-12-21 | Insulating structure of 690 V low-voltage high-power molding stator coil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105471149A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571707A (en) * | 2016-11-03 | 2017-04-19 | 上海电气电站设备有限公司 | Generator rotor coil interturn insulation seamless splicing structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201113602Y (en) * | 2007-10-23 | 2008-09-10 | 苏州巨峰绝缘材料有限公司 | Single-side breathable covering protection belt for motor coil |
| CN201781349U (en) * | 2010-08-24 | 2011-03-30 | 无锡市中达电机有限公司 | Insulation structure of stator coil of 6kV high-voltage motor |
| CN103683614A (en) * | 2013-12-11 | 2014-03-26 | 安徽威能电机有限公司 | Insulation structure of stator coil with 1.0-1.2 mm main insulation thickness |
| CN103812251A (en) * | 2013-12-11 | 2014-05-21 | 安徽威能电机有限公司 | Stator coil insulation structure with main insulation thickness of 1.4-1.6mm |
| CN104092324A (en) * | 2014-07-21 | 2014-10-08 | 苏州贯龙电磁线股份有限公司 | Double-insulation electromagnetic wire for wind turbine generator |
-
2015
- 2015-12-21 CN CN201510975320.3A patent/CN105471149A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201113602Y (en) * | 2007-10-23 | 2008-09-10 | 苏州巨峰绝缘材料有限公司 | Single-side breathable covering protection belt for motor coil |
| CN201781349U (en) * | 2010-08-24 | 2011-03-30 | 无锡市中达电机有限公司 | Insulation structure of stator coil of 6kV high-voltage motor |
| CN103683614A (en) * | 2013-12-11 | 2014-03-26 | 安徽威能电机有限公司 | Insulation structure of stator coil with 1.0-1.2 mm main insulation thickness |
| CN103812251A (en) * | 2013-12-11 | 2014-05-21 | 安徽威能电机有限公司 | Stator coil insulation structure with main insulation thickness of 1.4-1.6mm |
| CN104092324A (en) * | 2014-07-21 | 2014-10-08 | 苏州贯龙电磁线股份有限公司 | Double-insulation electromagnetic wire for wind turbine generator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106571707A (en) * | 2016-11-03 | 2017-04-19 | 上海电气电站设备有限公司 | Generator rotor coil interturn insulation seamless splicing structure |
| CN106571707B (en) * | 2016-11-03 | 2018-12-04 | 上海电气电站设备有限公司 | A kind of electric generator rotor coil turn-to-turn insulation seamless splicing structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160406 |