CN202978497U - 3300V coal special-purpose motor stator coil insulating structure - Google Patents
3300V coal special-purpose motor stator coil insulating structure Download PDFInfo
- Publication number
- CN202978497U CN202978497U CN 201220675397 CN201220675397U CN202978497U CN 202978497 U CN202978497 U CN 202978497U CN 201220675397 CN201220675397 CN 201220675397 CN 201220675397 U CN201220675397 U CN 201220675397U CN 202978497 U CN202978497 U CN 202978497U
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- China
- Prior art keywords
- straight line
- stator
- line portion
- solenoid group
- mica tape
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a 3300V coal special-purpose motor stator coil insulating structure which includes a stator iron core which is provided with a stator groove. The inside of the stator groove is wound with an electromagnetic coil group which is composed of straight line parts which extend along the lengthwise direction of a stator and an end line part which rounds an end of the stator. The straight line parts of the electromagnetic coil group in the same stator groove are arranged internally and externally, the outside of each straight line part of the electromagnetic coil group is coated with the composite insulating foil. Thermal expansion felt is arranged between adjacent straight line parts in the same stator groove. The straight line parts of the electromagnetic coil group in the same stator groove, the composite insulating foils arranged on the outsides of the straight line parts, and the thermal expansion felt are coated in a same polyester film sleeve. The insulating structure solves the defects in the prior art, and the insulating structure satisfies the 3300V use requirement of the coal special-purpose motor, suitably reduces the insulating thickness, is reliable in structure, and has the proper insulating thickness.
Description
Technical field
The utility model relates to a kind of 3300V coal special despatch machine stator coil insulation structure.
Background technology
In known technology, the voltage of motor is higher, insulation thickness is thicker, 1140V motor and 6000V motor all have ripe insulation system, the insulation system of 3300V coal special despatch machine is generally the insulation system of directly using 6000V, seems relatively thick with regard to the insulation that makes motor like this, has dwindled the effective area of groove, make simultaneously the heat of motor be not easy to distribute, reduced the utilance of material.
The utility model content
The purpose of this utility model is in order to solve weak point of the prior art, a kind of instructions for use of satisfying 3300V voltage in coal special despatch machine to be provided, making simultaneously the suitable attenuate of insulation thickness, reliable in structure, the insulation system that insulation thickness is moderate.
for achieving the above object, the utility model adopts following technical scheme: a kind of 3300V coal special despatch machine stator coil insulation structure, comprise the stator core with stator slot, be wound with the solenoid group in stator slot, the solenoid group is by partly consisting of along long straight line portion to extending and the end line of walking around stator end along stator, the straight line portion of solenoid group in same stator slot is for inside and outside arranging, it is characterized in that: the straight line portion outer ring of solenoid group all is enclosed with composite insulating foil, be provided with the thermal expansion felt between adjacent straight line portion in same stator slot, in same stator slot, the composite insulating foil of the straight line portion of all described solenoid groups and outer ring thereof and described thermal expansion felt are wrapped in a polyester film cover jointly.
The notch place of described stator slot outermost end is provided with the laminated sheet for the shutoff notch, is provided with filler strip between laminated sheet and polyester film cover.
Described solenoid group is made of the some circle copper strap wire circles that are layering successively and the mica tape outside the border is wrapped in all copper strap wire circles, lays respectively between two copper strap wire circles at two ends and is equipped with insulating paper.
The outer ring of the mica tape of described solenoid group straight line portion is wound with again the alkali-free band of flat bag one deck, and the outer ring of the mica tape of solenoid group end line part is wound with again the binding strap that partly repeatedly wraps one deck.
Described mica tape is the mica tape structure of partly repeatedly double-baging.
3300V coal special despatch machine stator coil insulation structure described in the utility model is to satisfy the instructions for use of 3300V voltage in coal special despatch machine, has simultaneously the suitable attenuate of the insulation thickness of making, reliable in structure, the advantage that insulation thickness is moderate.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the sectional view that the insulation of the straight line portion of solenoid group is arranged;
Fig. 3 is the sectional view that the end line SI semi-insulation of solenoid group is arranged.
Embodiment
By Fig. 1-a kind of 3300V coal special despatch machine stator coil insulation structure shown in Figure 3, comprise the stator core 1 with stator slot 13, stator core 1 is formed by stacking by some stator punchings, be prior art with the stator punching of stator slot 13 and the stator core 1 of stator punching formation, therefore be not described in detail.
be wound with the solenoid group in stator slot 13, the solenoid group is by partly consisting of with the end line of walking around stator end along long straight line portion 10 to extending along stator, the straight line portion 10 of solenoid group in same stator slot is for inside and outside arranging, straight line portion 10 outer rings of solenoid group all are enclosed with composite insulating foil 2, be equipped with thermal expansion felt 4 between two adjacent straight line portioies 10 in same stator slot, be after composite insulating foil 2 is first wrapped up in solenoid group straight line portion 10 outer rings, pad is established thermal expansion felt 4 between two adjacent composite insulating foils 2 again, thermal expansion felt 4 is the thermal expansivity glass felt, thermal expansion felt 4 is used for insulation.In same stator slot, the composite insulating foil 2 of the straight line portion 10 of all described solenoid groups and outer ring thereof and described thermal expansion felt 4 are wrapped in a polyester film cover 3 jointly.The notch place of described stator slot outermost end is provided with the laminated sheet 5 for the shutoff notch, is provided with filler strip 6 between laminated sheet 5 and polyester film cover 3.
Described solenoid group is made of the some circle copper strap wire circles 7 and the mica tape 8 outside the border is wrapped in all copper strap wire circles 7 that are layering successively, and described mica tape 8 is the mica tape structure of partly repeatedly double-baging, and every circle copper strap wire circle 7 consists of by a copper strap wire.Lay respectively between two copper strap wire circles 7 at two ends all pad and establish one deck insulating paper 9, namely between first circle copper strap wire circle 7 and the second circle copper strap wire circle 7, be lined with respectively one deck insulating paper 9 between last circle copper strap wire circle 7 and circle copper strap wire circle 7 second from the bottom.As shown in Figure 2, the outer ring of the mica tape 8 of described solenoid group straight line portion 10 is wound with again the alkali-free band 11 of flat bag one deck, and namely above-mentioned composite insulating foil 2 is looped around the outer ring of described alkali-free band 11; As shown in Figure 3, the outer ring of the mica tape 8 of solenoid group end line part is wound with again the binding strap 12 that partly repeatedly wraps one deck.
The model of copper strap wire adopts SBMYFB-40/180; Composite insulating foil 2 is the thick TFT(TFT full name inorganic insulation paper/polyester film compound material of 0.18mm); Binding strap 12 is 0.2mm(thickness) * the 25mm(width) PST band (the PST band is the polyester fiber bandage); The model that mica tape 8 adopts is 0.14X25 (5451-1), 0.14mm(thickness) * the 25mm(width); Insulating paper 9 adopts the thick NOMEX410 of 0.13mm, and width is than the narrow 0.1mm of copper strap wire; Alkali-free band 1111 is 0.1mm(thickness) * the 25mm(width); Thermal expansion felt 4 thickness are according to actual conditions, and width is as the criterion not become flexible than the narrow 0.5mm of the width of stator slot; The thick 0.5mm of filler strip 6.
The solenoid group first to twice H class F insulation paint of solenoid group Vaccum Permeating, and is rolled baking and is processed before being wound around stator slot, increases the paint amount of hanging.The lead wire of solenoid group adopts silicon rubber insulated cable (JHXG-6000).The utility model is applicable to 3300V coal special despatch machine.
Claims (5)
1. 3300V coal special despatch machine stator coil insulation structure, comprise the stator core with stator slot, be wound with the solenoid group in stator slot, the solenoid group is by partly consisting of along long straight line portion to extending and the end line of walking around stator end along stator, the straight line portion of solenoid group in same stator slot is for inside and outside arranging, it is characterized in that: the straight line portion outer ring of solenoid group all is enclosed with composite insulating foil, be provided with the thermal expansion felt between adjacent straight line portion in same stator slot, in same stator slot, the composite insulating foil of the straight line portion of all described solenoid groups and outer ring thereof and described thermal expansion felt are wrapped in a polyester film cover jointly.
2. 3300V coal special despatch machine stator coil insulation structure as claimed in claim 1 is characterized in that: the notch place of described stator slot outermost end is provided with the laminated sheet for the shutoff notch, is provided with filler strip between laminated sheet and polyester film cover.
3. 3300V coal special despatch machine stator coil insulation structure as claimed in claim 1 or 2, it is characterized in that: described solenoid group is made of the some circle copper strap wire circles that are layering successively and the mica tape outside the border is wrapped in all copper strap wire circles, lays respectively between two copper strap wire circles at two ends and is equipped with insulating paper.
4. 3300V coal special despatch machine stator coil insulation structure as claimed in claim 3, it is characterized in that: the outer ring of the mica tape of described solenoid group straight line portion is wound with again the alkali-free band of flat bag one deck, and the outer ring of the mica tape of solenoid group end line part is wound with again the binding strap that partly repeatedly wraps one deck.
5. 3300V coal special despatch machine stator coil insulation structure as claimed in claim 4, it is characterized in that: described mica tape is the mica tape structure of partly repeatedly double-baging.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220675397 CN202978497U (en) | 2012-12-10 | 2012-12-10 | 3300V coal special-purpose motor stator coil insulating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220675397 CN202978497U (en) | 2012-12-10 | 2012-12-10 | 3300V coal special-purpose motor stator coil insulating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978497U true CN202978497U (en) | 2013-06-05 |
Family
ID=48519521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220675397 Expired - Lifetime CN202978497U (en) | 2012-12-10 | 2012-12-10 | 3300V coal special-purpose motor stator coil insulating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978497U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938593A (en) * | 2012-12-10 | 2013-02-20 | 南阳防爆集团股份有限公司 | Stator coil insulation structure of 3300V coalmine-dedicated motor |
| CN104901459A (en) * | 2015-07-06 | 2015-09-09 | 永济新时速电机电器有限责任公司 | Converter-powered loose winding motor |
| CN110601411A (en) * | 2019-09-19 | 2019-12-20 | 中车株洲电机有限公司 | Stator slot assembly and manufacturing method thereof |
-
2012
- 2012-12-10 CN CN 201220675397 patent/CN202978497U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102938593A (en) * | 2012-12-10 | 2013-02-20 | 南阳防爆集团股份有限公司 | Stator coil insulation structure of 3300V coalmine-dedicated motor |
| CN104901459A (en) * | 2015-07-06 | 2015-09-09 | 永济新时速电机电器有限责任公司 | Converter-powered loose winding motor |
| CN104901459B (en) * | 2015-07-06 | 2017-07-07 | 永济新时速电机电器有限责任公司 | The scattered winding electric machine that current transformer is powered |
| CN110601411A (en) * | 2019-09-19 | 2019-12-20 | 中车株洲电机有限公司 | Stator slot assembly and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |