CN201854114U - Insulation structure for stator coil of 10kV high-voltage motor - Google Patents
Insulation structure for stator coil of 10kV high-voltage motor Download PDFInfo
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- CN201854114U CN201854114U CN2010205022288U CN201020502228U CN201854114U CN 201854114 U CN201854114 U CN 201854114U CN 2010205022288 U CN2010205022288 U CN 2010205022288U CN 201020502228 U CN201020502228 U CN 201020502228U CN 201854114 U CN201854114 U CN 201854114U
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Abstract
The utility model relates to an insulation structure for a stator coil of a 10kV high-voltage motor, which mainly comprises a coil straight line insulation part and a coil end insulation part, wherein the coil straight line insulation part is formed by half-wrapping five layers of single-faced glass cloth reinforcing dry mica tapes and half-wrapping four layers of single-faced thin film reinforcing dry mica tapes; counter-cone lap joint is formed between each layer of single-faced thin film reinforcing dry mica tape of the coil end insulation part and each layer of single-faced glass cloth reinforcing dry mica tape of the coil straight line insulation part; a layer of high-resistance tape is half-wrapped outside the connected corner position of the end insulation part and the coil straight line insulation part, and a polyester yarn tape is half-wrapped outside the layer of high-resistance tape; a polyester felt is arranged at two side pads at the lead drawing-out place of the end insulation part; and the polyester felt and a lead are fixed through wrapping three layers by E-glass filament interlace tapes. In the insulation structure, the coil is directly inserted after being wrapped and insulated, the mould pressing process of the coil can be omitted, the production efficiency can be greatly improved and the stable running of the high-voltage motor can be better ensured.
Description
Technical field
The utility model relates to a kind of insulation system of 10KV high-voltage motor stator coil, be that the monolateral insulation thickness of researching and developing at the 10KV high-voltage motor stator coil is the structure of 2.4mm, be applicable to few glue VPI(vacuum pressure impregnation) technology, can guarantee the stable operation of high-voltage motor preferably.
Background technology
In prior art, the high-voltage motor stationary part adopts mold pressing coil pattern, and promptly the high-tension stator coil straight line portion adopts many glue mica tapes, and the hot-press solidifying aftershaping one by one in the embedded groove, carries out coil normal pressure after rule finishes and immerses then.The shortcoming of this technology is that many glue mica tapes mica content is few, so insulation thickness is thicker, so that effectively material is few in the stator slot, motor volume is big, and straight line portion hot pressing work efficiency is low, and owing to adopt normal pressure to immerse, leave certain clearance between stator core and the coil, make motor in running, easily produce vibration, thereby destroy insulation, shorten motor useful life.
The another kind of few adhesive process of VPI that adopts, coil main insulation all adopts the low resin mica tape of glass cloth reinforcement or film reinforcement, and the mica content height does not need hot pressing directly to roll off the production line after wrapping insulation, adopts the VPI vacuum pressure impregnation.But this process characteristic is a coil insulation thickness attenuate, improves the groove utilance, can save material, improves power.Shortcoming is that few adhesive tape structure impregnability of full glass cloth reinforcement is better, but few adhesive tape proof voltage level of glass cloth reinforcement is relatively low; Though and few adhesive tape proof voltage intensity of full film reinforcement is higher, this structure impregnability is relatively poor relatively, thereby makes the coil dielectric loss higher, and the proof voltage level does not also reach higher level.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point, and coil proof voltage level is improved, and dielectric loss reduces simultaneously, makes the insulation system of high-voltage motor be suitable for stablizing long-term operation.
According to the technical scheme that the utility model provides, a kind of insulation system of 10KV high-voltage motor stator coil comprises that the insulation of coil straight line, end winding insulation two parts constitute; Described coil straight line insulated part is made of for four layers five layers of single face glass cloth reinforcement low resin mica tape half-stack packages, single-sided film reinforcement low resin mica tape half-stack package; Between the second layer of the ground floor of single face glass cloth reinforcement low resin mica tape half-stack package and single face glass cloth reinforcement low resin mica tape half-stack package, half-stack package single-sided film reinforcement low resin mica tape ground floor is set, between the second layer of single face glass cloth reinforcement low resin mica tape half-stack package and single face glass cloth reinforcement low resin mica tape half-stack package the 3rd layer, the half-stack package single-sided film reinforcement low resin mica tape second layer is set; Between the 3rd layer of single face glass cloth reinforcement low resin mica tape half-stack package and single face glass cloth reinforcement low resin mica tape half-stack package the 4th layer, the 3rd layer of half-stack package single-sided film reinforcement low resin mica tape is set; Between the layer 5 of the 4th layer of single face glass cloth reinforcement low resin mica tape half-stack package and single face glass cloth reinforcement low resin mica tape half-stack package, the 4th layer of half-stack package single-sided film reinforcement low resin mica tape is set; At the low stopband of described single face glass cloth reinforcement low resin mica tape half-stack package layer 5 outside half-stack package one deck; Described end winding insulated part adopts eight layers of single-sided film reinforcement low resin mica tape half-stack packages, at eight layers of outside of single-sided film reinforcement low resin mica tape half-stack package half-stack package terylene silk ribbon one deck; Form anti-cone overlap joint between each layer single face glass cloth reinforcement low resin mica tape of each layer single-sided film reinforcement low resin mica tape of described end winding insulated part and coil straight line insulated part.
The high stopband of half-stack package one deck outside described overhang insulation part and the bent angle position that coil straight line insulated part is connected, the high resistant tape beginning end is to whole winding end skin half-stack package terylene silk ribbon one deck.
The both sides pad of described overhang insulation part fuse drawn place is established terylene felt one deck, and the terylene felt is fixing with washing three layers of glass band lap wounds with lead-in wire.
Core length 30mm is stretched out at described low stopband two ends, and hypotenuse is started, is cut into when finishing up in described low stopband wrapping flushes its edges at two ends.
Described overhang insulation partly goes between when insulation bag, with length 〉=70mm that end coil separates in evenly finish stairstepping transition stacked package, the insulating barrier length on the lead-in wire is stretched out end winding 20～25mm.
Compared with the prior art the utility model has the following advantages:
The utility model is pressed to compare with many rubber mouldings and is directly rolled off the production line after coil is wrapped insulation, can omit the coil die stamping operation, enhances productivity greatly.Compare with few full glass cloth mica tape of glue VPI or full thin film mica tape structure, have the problem of having taken into account impregnability and proof voltage intensity.
Description of drawings
Fig. 1 is the utility model general assembly structural representation.
Fig. 2 is the utility model coil straight line insulated part main insulation cutaway view.
Fig. 3 is an end winding insulated part schematic diagram.
Embodiment
Structure during following the utility model is incited somebody to action in conjunction with the accompanying drawings is further described:
Shown in Fig. 1 ~ 3: comprise 5442-1D single-sided film reinforcement low resin mica tape 1,0.1X25 terylene silk ribbon 2,5442-1 single face glass cloth reinforcement low resin mica tape 3,0.1x25 low stopband 4, the high stopband 5 of 0.2x20,2X10X100 terylene felt 6, wash glass band 7 etc.
The utility model is made of the insulation of coil straight line, end winding insulation two parts, and concrete structure is described below:
Described coil straight line insulated part is made of for four layers five layers of 5442-1 single face glass cloth reinforcement low resin mica tape 3 half-stack packages, 5442-1D single-sided film reinforcement low resin mica tape 1 half-stack package.Between the second layer 3-2 of the ground floor 3-1 of 5442-1 single face glass cloth reinforcement low resin mica tape 3 half-stack packages and 5442-1 single face glass cloth reinforcement low resin mica tape 3 half-stack packages, half-stack package 5442-1D single-sided film reinforcement low resin mica tape 1-1 ground floor is set, between the 3rd layer of 3-3 of the second layer 3-2 of 5442-1 single face glass cloth reinforcement low resin mica tape 3 half-stack packages and 5442-1 single face glass cloth reinforcement low resin mica tape 3 half-stack packages, the half-stack package 5442-1D single-sided film reinforcement low resin mica tape 1-2 second layer is set; Between the 4th layer of 3-4 of the 3rd layer of 3-3 of 5442-1 single face glass cloth reinforcement low resin mica tape 3 half-stack packages and 5442-1 single face glass cloth reinforcement low resin mica tape 3 half-stack packages, the 3rd layer of 1-3 of half-stack package 5442-1D single-sided film reinforcement low resin mica tape 1 is set; Between the layer 5 3-5 of the 4th layer of 3-4 of 5442-1 single face glass cloth reinforcement low resin mica tape 3 half-stack packages and 5442-1 single face glass cloth reinforcement low resin mica tape 3 half-stack packages, the 4th layer of 1-4 of half-stack package 5442-1D single-sided film reinforcement low resin mica tape 1 is set; At the low stopband 4 of described 5442-1 single face glass cloth reinforcement low resin mica tape 3 half-stack package layer 5 3-5 outside half-stack package one deck 0.1x25.
Described 0.1x25 is low, and core length 30mm is stretched out at stopband 4 two ends, and hypotenuse is started, is cut into when finishing up in low stopband 4 wrappings of 0.1x25 flushes its edges at two ends.
Described end winding insulated part structure is not because of directly colliding with unshakable in one's determination and casing, so adopt eight layers of 5442-1D single-sided film reinforcement low resin mica tape 1 half-stack packages, at eight layers of outside of 5442-1D single-sided film reinforcement low resin mica tape 1 half-stack package half-stack package 0.1X25 terylene silk ribbon 2 one decks.The same overhang insulation of insulation wrapping on the lead-in wire that end winding insulated part end is comprised, during the insulation of lead-in wire bag, with length 〉=70mm that end coil separates in evenly finish stairstepping transition stacked package, the insulating barrier length on the lead-in wire is stretched out end winding 20～25mm.
During wrapping, form anti-cone overlap joint (showing) between each layer 5442-1 single face glass cloth reinforcement low resin mica tape 3 of each layer 5442-1D single-sided film reinforcement low resin mica tape 1 of described end winding insulated part and coil straight line insulated part as Fig. 2.The high stopband 5 of half-stack package one deck 0.2x20 outside overhang insulation part and the bent angle position that coil straight line insulated part is connected, high stopband 5 initiating terminals of 0.2x20 are to whole winding end skin half-stack package 0.1X25 terylene silk ribbon 2 one decks.
During wrapping, form anti-cone overlap joint (showing) between each layer 5442-1 single face glass cloth reinforcement low resin mica tape 3 of each layer 5442-1D single-sided film reinforcement low resin mica tape 1 of described end winding insulated part and coil straight line insulated part as Fig. 2, establish 2X10X100 terylene felt 6 one decks at the both sides pad of overhang insulation part fuse drawn place, 2X10X100 terylene felt 6 is fixing with washing three layers of glass band 7 lap wounds with lead-in wire, the high stopband 5 of half-stack package one deck 0.2x20 outside overhang insulation part and the bent angle position that coil straight line insulated part is connected, high stopband 5 initiating terminals of 0.2x20 are to whole winding end skin half-stack package 0.1X25 terylene silk ribbon 2 one decks.
The structure that straight line portion insulation (title main insulation) in the utility model embedded groove adopts single face glass cloth reinforcement low resin mica tape 5442-1 and two kinds of material 5+4 of single-sided film reinforcement low resin mica tape 5442-1D to mix bag, the insulation thickness that has overcome many rubber mouldings line ball circle is thicker, so that effectively material is few in the stator slot, motor volume is big, straight line portion hot pressing work efficiency is low, shortcomings such as motor weak point in useful life; It is low to have overcome the common few full glass cloth reinforcement of tree lace circle mica tape structure or the full film reinforcement mica tape existing proof voltage puncture of structure level, shortcomings such as dipping lacquer poor permeability.This structure is compared with short production cycle with many rubber mouldings pressures, move more stable; Compare the problem of having taken into account impregnability and proof voltage intensity with common few plastic structure, and dielectric loss is reduced, thereby the life-span of improving the high-voltage motor stator insulation makes the motor operation more reliable and more stable.
Claims (5)
1. the insulation system of a 10KV high-voltage motor stator coil comprises coil straight line insulated part, end winding insulated part; It is characterized in that: described coil straight line insulated part is by five layers of single face glass cloth reinforcement low resin mica tape (3) half-stack packages, four layers of formation of single-sided film reinforcement low resin mica tape (1) half-stack package; Between the second layer (3-2) of the ground floor (3-1) of single face glass cloth reinforcement low resin mica tape half-stack package and single face glass cloth reinforcement low resin mica tape half-stack package, half-stack package single-sided film reinforcement low resin mica tape ground floor (1-1) is set, between the 3rd layer (3-3) of the second layer (3-2) of single face glass cloth reinforcement low resin mica tape half-stack package and single face glass cloth reinforcement low resin mica tape half-stack package, the half-stack package single-sided film reinforcement low resin mica tape second layer (1-2) is set; Between the 4th layer (3-4) of the 3rd layer (3-3) of single face glass cloth reinforcement low resin mica tape half-stack package and single face glass cloth reinforcement low resin mica tape half-stack package, the 3rd layer of low resin mica tape of half-stack package single-sided film reinforcement (1-3) is set; Between the layer 5 (3-5) of the 4th layer (3-4) of single face glass cloth reinforcement low resin mica tape half-stack package and single face glass cloth reinforcement low resin mica tape half-stack package, the 4th layer of low resin mica tape of half-stack package single-sided film reinforcement (1-4) is set; At the low stopband (4) of described single face glass cloth reinforcement low resin mica tape half-stack package layer 5 (3-5) outside half-stack package one deck; Described end winding insulated part adopts eight layers of single-sided film reinforcement low resin mica tape (1) half-stack packages, at eight layers of outside of single-sided film reinforcement low resin mica tape (1) half-stack package half-stack package terylene silk ribbon (2) one deck; Form anti-cone overlap joint between each layer single-sided film reinforcement low resin mica tape (1) of described end winding insulated part and each layer single face glass cloth reinforcement low resin mica tape (3) of coil straight line insulated part.
2. the insulation system of a kind of 10KV high-voltage motor stator coil as claimed in claim 1, it is characterized in that: the high stopband of half-stack package one deck (5) outside described overhang insulation part and the bent angle position that coil straight line insulated part is connected, high stopband (5) initiating terminal is to whole winding end skin half-stack package terylene silk ribbon (2) one deck.
3. the insulation system of a kind of 10KV high-voltage motor stator coil as claimed in claim 1, it is characterized in that: the both sides pad of described overhang insulation part fuse drawn place is established terylene felt (6) one deck, and terylene felt (6) is fixing with washing three layers of glass band (7) lap wounds with lead-in wire.
4. the insulation system of a kind of 10KV high-voltage motor stator coil as claimed in claim 1 is characterized in that: core length 30mm is stretched out at described low stopband (4) two ends, and hypotenuse is started, is cut into when finishing up in described low stopband (4) wrapping flushes its edges at two ends.
5. the insulation system of a kind of 10KV high-voltage motor stator coil as claimed in claim 1, it is characterized in that: when described overhang insulation partly goes between the bag insulation, with length 〉=70mm that end coil separates in evenly finish stairstepping transition stacked package, the insulating barrier length on the lead-in wire is stretched out end winding 20～25mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205022288U CN201854114U (en) | 2010-08-24 | 2010-08-24 | Insulation structure for stator coil of 10kV high-voltage motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205022288U CN201854114U (en) | 2010-08-24 | 2010-08-24 | Insulation structure for stator coil of 10kV high-voltage motor |
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| CN201854114U true CN201854114U (en) | 2011-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205022288U Expired - Fee Related CN201854114U (en) | 2010-08-24 | 2010-08-24 | Insulation structure for stator coil of 10kV high-voltage motor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917081A (en) * | 2010-08-24 | 2010-12-15 | 无锡市中达电机有限公司 | Insulating structure of 10 kV high-voltage motor stator coil |
| CN103117629A (en) * | 2013-03-20 | 2013-05-22 | 株洲南车机电科技有限公司 | Producing method and structure of insulation structure of long primary linear motor for urban rail vehicle |
| CN104935127A (en) * | 2015-05-26 | 2015-09-23 | 浙江金轮机电实业有限公司 | Hydro-generator pole body insulation box making method |
| CN112510941A (en) * | 2020-11-13 | 2021-03-16 | 哈尔滨电气动力装备有限公司 | Vacuum pressure impregnation insulation process for stator bar type coil of large high-voltage shielding motor |
-
2010
- 2010-08-24 CN CN2010205022288U patent/CN201854114U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101917081A (en) * | 2010-08-24 | 2010-12-15 | 无锡市中达电机有限公司 | Insulating structure of 10 kV high-voltage motor stator coil |
| CN103117629A (en) * | 2013-03-20 | 2013-05-22 | 株洲南车机电科技有限公司 | Producing method and structure of insulation structure of long primary linear motor for urban rail vehicle |
| CN103117629B (en) * | 2013-03-20 | 2015-07-08 | 株洲南车机电科技有限公司 | Producing method and structure of insulation structure of long primary linear motor for urban rail vehicle |
| CN104935127A (en) * | 2015-05-26 | 2015-09-23 | 浙江金轮机电实业有限公司 | Hydro-generator pole body insulation box making method |
| CN112510941A (en) * | 2020-11-13 | 2021-03-16 | 哈尔滨电气动力装备有限公司 | Vacuum pressure impregnation insulation process for stator bar type coil of large high-voltage shielding motor |
| CN112510941B (en) * | 2020-11-13 | 2022-01-07 | 哈尔滨电气动力装备有限公司 | Vacuum pressure impregnation insulation process for stator bar type coil of large high-voltage shielding motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20120824 |