CN105245048A - Motor stator slot portion insulation structure - Google Patents
Motor stator slot portion insulation structure Download PDFInfo
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- CN105245048A CN105245048A CN201510768615.3A CN201510768615A CN105245048A CN 105245048 A CN105245048 A CN 105245048A CN 201510768615 A CN201510768615 A CN 201510768615A CN 105245048 A CN105245048 A CN 105245048A
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- stator slot
- coil
- slot
- semiconductor filler
- filler strip
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Abstract
The invention relates to a motor stator slot portion insulation structure. The structure comprises a stator core (1), the stator core (1) is provided with a stator slot (2), a coil (3) is disposed in the stator slot (2), a slot insulation structure (4) and a coil fixing structure (5) are disposed between the coil (3) and the stator slot (2), the slot insulation structure (4) comprises an insulation glue layer (41), a low-resistance paint layer (42),a rubber layer (43) and low-resistance cloth (44), and fixing materials used in the coil fixing structure (5) are 3241 semiconductor cushion strip. A practical application shows that a motor set adopting the stator slot portion structure runs well in a high-altitude area, set discharging, burnout and other accidents do not occur, set running safety can be effectively guaranteed, and the service life of the set is prolonged; and the whole insulation structure adopts homemade materials, economic cost is low, independent research, development and innovation of science and technology in our county are facilitated, and dependency and instability of imported foreign materials are reduced.
Description
Technical field
The present invention relates to technical field of motor manufacture, particularly a kind of motor stator slot portion insulation system.
Background technology
Along with the development of State Grid's industry, high altitude localities generating set gets more and more.For conventional power unit, run in high altitude localities, because of rarefaction of air, during unit operation easily there is corona in Stator Slots, thus cause the problems such as galvano-cautery, chemical corrosion and localized hyperthermia, causes bar insulation accelerated ageing, damages unit, shortens the unit operation life-span.Under High aititude, unit causes complete machine to damage accident because of anti-corona dealing with improperly happens occasionally.Particularly power station height above sea level is when more than 3000m, and unit normally runs and requires higher to Stator Slots insulation property, and conventional stator groove portion structure is difficult to meet the service requirement of unit under complex environment, must carry out special processing to Stator Slots.In addition, the insulating material that domestic current a lot of motor unit uses all relies on external import, and cost is high, does not utilize China's economic security, and consider from the angle of national long term growth, Key technique problem must rely on independent research and innovation.
Summary of the invention
The object of the invention is to the shortcoming overcoming prior art, a kind of motor stator slot portion insulation system that effectively can prevent motor slot discharge and bloom is provided, the unit applying this Stator Slots insulation system is good in high altitude localities running status, when 40KV voltage test, Stator Slots not bloom.
Object of the present invention is achieved through the following technical solutions: a kind of motor stator slot portion insulation system, it comprises stator core, stator core is provided with stator slot, coil is arranged in stator slot, the opening part of stator slot is provided with slot wedge, it is characterized in that: between coil and stator slot, be provided with slot insulation structure and coil fixing structure, described slot insulation structure comprises insulation glue-line, paint layer, rubber layer and low-resistance cloth, described insulation glue-line and paint layer are successively set on stator slot outer surface, rubber layer is coated on coil outer surface, low-resistance cloth is wrapped in coil outermost, described coil fixing structure comprises semiconductor filler strip A, semiconductor filler strip B and semiconductor filler strip C, semiconductor filler strip A is provided with between coil and slot wedge, semiconductor filler strip B is provided with between adjacent windings, semiconductor filler strip C is provided with in the gap of coil and stator slot end face.
Further, described insulation glue-line is J0706 cold curing glue-line.
Further, described rubber layer is YH50 III low-resistance sulphurated siliastic layer.
Further, described low-resistance cloth is TJ2641-2 low-resistance cloth.
Further, described semiconductor filler strip A, semiconductor filler strip B, semiconductor filler strip C are 3241 semiconductor filler strips.
Further, semiconductor filler strip D is provided with in the gap of described coil and stator slot side.
Further, described semiconductor filler strip D is 3241 semiconductor filler strips.
Further, described slot wedge is two-way drawing groove wedge.
Further, described slot wedge is the two-way drawing groove wedge of F level or the two-way drawing groove wedge of H level.This slot wedge split resistance is high, and cavity dimension rule, can meet matching requirements very well, and waste little, saving resource.
The present invention has the following advantages: this Stator Slots insulation system reasonably arranges the insulating barrier of the various ways such as insulation glue-line, paint layer, rubber layer and low-resistance cloth, effectively guarantees sealing and the insulation property of Stator Slots.Before coil rule on coil brushing one deck silastic-layer, utilize the sealing of silicon rubber, play better insulation effect, and rule uses low-resistance cloth parcel coil, elasticity low-resistance cloth increases sealing and insulation effect further.Stator slot internal fixing structure all adopts 3241 semiconductor filler strips, is conducive to reducing stator slot inner potential, prevents the generation of corona in groove.Slot wedge adopts the two-way drawing groove wedge of F level or the two-way drawing groove wedge of H level, and this slot wedge split resistance is high, and cavity dimension rule, can meet matching requirements very well, and waste little, saving resource.
Practical application shows that the motor unit adopting this Stator Slots structure well can run in high altitude localities, Long-Time Service, there is not the accidents such as unit discharges, burn, there is good anti-corona effect, Stator Slots discharge inception voltage is at more than 40KV, can effectively ensure unit operation safety, extend unit useful life.And all insulation system all adopts home made materials, Financial cost is low, is conducive to China's science and technology independent research and innovation, reduces dependence and the unsteadiness of import foreign material.
Accompanying drawing explanation
Fig. 1 is motor stator slot portion of the present invention insulation system schematic cross-section;
In figure: 1-stator core, 2-stator slot, 3-coil, 4-slot insulation structure, 41-insulate glue-line, 42-paint layer, 43-rubber layer, 44-low-resistance cloth, 5-coil fixing structure, 51-semiconductor filler strip A, 52-semiconductor filler strip B, 53-semiconductor filler strip C, 54-semiconductor filler strip D, 6-slot wedge.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described, but protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, a kind of motor stator slot portion insulation system, it comprises stator core 1, stator core 1 is provided with stator slot 2, coil 3 is arranged in stator slot 2, and the opening part of stator slot 2 is provided with slot wedge 6, and slot wedge 6 adopts the two-way drawing groove wedge of F level or the two-way drawing groove wedge of H level, this slot wedge split resistance is high, cavity dimension rule, can meet matching requirements very well, and waste little, saving resource, adopts 3240 or 3248 laminated sheets to process usually.
Slot insulation structure 4 and coil fixing structure 5 is provided with between coil 3 and stator slot 2, described slot insulation structure 4 comprises insulation glue-line 41, paint layer 42, rubber layer 43 and low-resistance cloth 44, described insulation glue-line 41 and paint layer 42 are successively set on stator slot 2 outer surface, and described insulation glue-line 41 is J0706 cold curing glue-line.Actual when manufacturing, first stator slot 2 in and support inner rim spray J0706 room temperature setting adhesives, after drying 24h, in stator slot 2, spray paint layer 42 again.
Rubber layer 43 is coated on coil 3 outer surface, and low-resistance cloth 44 is wrapped in coil 3 outermost.Described rubber layer 43 is YH50 III low-resistance sulphurated siliastic layer, and described low-resistance cloth 44 is TJ2641-2 low-resistance cloth.Before coil 3 rule, in the good iron core position of coil 3 straight line part mark, brush one deck is about the YH50 III low-resistance sulphurated siliastic of 0.1mm, then is rolled in as slot liner on coil 3 with TJ2641-2 low-resistance cloth, carries out rule.
Described coil fixing structure 5 comprises semiconductor filler strip A51, semiconductor filler strip B52 and semiconductor filler strip C53, semiconductor filler strip A51 is provided with between coil 3 and slot wedge 6, be provided with semiconductor filler strip B52 between adjacent windings 3, in coil 3 and the gap of stator slot 2 end face, be provided with semiconductor filler strip C53.Described semiconductor filler strip A51, semiconductor filler strip B52, semiconductor filler strip C53 are 3241 semiconductor filler strips.
During actual rule, if there is gap between coil 3 and stator slot 2 side, same in the gap of coil 3 with stator slot 2 side 3241 semiconductor filler strips are set.Filler strip is 3241 semiconductor filler strips, is conducive to reducing stator slot 2 groove inner potential, prevents the generation of corona in groove.
Claims (9)
1. a motor stator slot portion insulation system, it comprises stator core (1), stator core (1) is provided with stator slot (2), coil (3) is arranged in stator slot (2), the opening part of stator slot (2) is provided with slot wedge (6), it is characterized in that: between coil (3) and stator slot (2), be provided with slot insulation structure (4) and coil fixing structure (5), described slot insulation structure (4) comprises insulation glue-line (41), paint layer (42), rubber layer (43) and low-resistance cloth (44), described insulation glue-line (41) and paint layer (42) are successively set on stator slot (2) outer surface, rubber layer (43) is coated on coil (3) outer surface, low-resistance cloth (44) is wrapped in coil (3) outermost, described coil fixing structure (5) comprises semiconductor filler strip A(51), semiconductor filler strip B(52) and semiconductor filler strip C(53), semiconductor filler strip A(51 is provided with) between coil (3) and slot wedge (6), semiconductor filler strip B(52 is provided with) between adjacent windings (3), semiconductor filler strip C(53 is provided with) in coil (3) and the gap of stator slot (2) end face.
2. a kind of motor stator slot portion according to claim 1 insulation system, is characterized in that: described insulation glue-line (41) is J0706 cold curing glue-line.
3. a kind of motor stator slot portion according to claim 1 insulation system, is characterized in that: described rubber layer (43) is YH50 III low-resistance sulphurated siliastic layer.
4. a kind of motor stator slot portion according to claim 1 insulation system, is characterized in that: described low-resistance cloth (44) is TJ2641-2 low-resistance cloth.
5. a kind of motor stator slot portion according to claim 1 insulation system, is characterized in that: described semiconductor filler strip A(51), semiconductor filler strip B(52), semiconductor filler strip C(53) be 3241 semiconductor filler strips.
6. a kind of motor stator slot portion according to claim 1 insulation system, is characterized in that: be provided with semiconductor filler strip D(54 in described coil (3) and the gap of stator slot (2) side).
7. a kind of motor stator slot portion according to claim 6 insulation system, is characterized in that: described semiconductor filler strip D(54) be 3241 semiconductor filler strips.
8. a kind of motor stator slot portion according to claim 1 insulation system, is characterized in that: described slot wedge (6) is two-way drawing groove wedge.
9. a kind of motor stator slot portion according to claim 8 insulation system, is characterized in that: described slot wedge (6) is the two-way drawing groove wedge of F level or the two-way drawing groove wedge of H level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510768615.3A CN105245048B (en) | 2015-11-12 | 2015-11-12 | A kind of motor stator groove portion insulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510768615.3A CN105245048B (en) | 2015-11-12 | 2015-11-12 | A kind of motor stator groove portion insulation system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105245048A true CN105245048A (en) | 2016-01-13 |
| CN105245048B CN105245048B (en) | 2019-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510768615.3A Active CN105245048B (en) | 2015-11-12 | 2015-11-12 | A kind of motor stator groove portion insulation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448770A (en) * | 2018-04-08 | 2018-08-24 | 新誉轨道交通科技有限公司 | The stator coil and fixed subcoil insulating integral method of direct current generator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58182443A (en) * | 1982-04-20 | 1983-10-25 | Toshiba Corp | Rotor of rotary electric machine |
| CN101304189A (en) * | 2008-06-30 | 2008-11-12 | 天津市天发重型水电设备制造有限公司 | Fixed structure for slot part of hydraulic turbine generator stator coil |
| CN101917078A (en) * | 2010-08-13 | 2010-12-15 | 浙江富春江水电设备股份有限公司 | VPI stator wire bar |
| CN205070643U (en) * | 2015-11-12 | 2016-03-02 | 东方电气集团东风电机有限公司 | Motor stator slot part insulation system |
-
2015
- 2015-11-12 CN CN201510768615.3A patent/CN105245048B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58182443A (en) * | 1982-04-20 | 1983-10-25 | Toshiba Corp | Rotor of rotary electric machine |
| CN101304189A (en) * | 2008-06-30 | 2008-11-12 | 天津市天发重型水电设备制造有限公司 | Fixed structure for slot part of hydraulic turbine generator stator coil |
| CN101917078A (en) * | 2010-08-13 | 2010-12-15 | 浙江富春江水电设备股份有限公司 | VPI stator wire bar |
| CN205070643U (en) * | 2015-11-12 | 2016-03-02 | 东方电气集团东风电机有限公司 | Motor stator slot part insulation system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108448770A (en) * | 2018-04-08 | 2018-08-24 | 新誉轨道交通科技有限公司 | The stator coil and fixed subcoil insulating integral method of direct current generator |
| CN108448770B (en) * | 2018-04-08 | 2020-05-15 | 新誉轨道交通科技有限公司 | Stator coil insulation integration method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105245048B (en) | 2019-01-29 |
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