CN105245048B - A kind of motor stator groove portion insulation system - Google Patents
A kind of motor stator groove portion insulation system Download PDFInfo
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- CN105245048B CN105245048B CN201510768615.3A CN201510768615A CN105245048B CN 105245048 B CN105245048 B CN 105245048B CN 201510768615 A CN201510768615 A CN 201510768615A CN 105245048 B CN105245048 B CN 105245048B
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Abstract
The present invention relates to a kind of motor stator groove portion insulation systems, it includes stator core (1), stator slot (2) are provided on stator core (1), coil (3) setting is in stator slot (2), slot insulation structure (4) and coil fixing structure (5) are provided between coil (3) and stator slot (2), the slot insulation structure (4) includes insulation glue-line (41), paint layer (42), rubber layer (43) and low-resistance cloth (44), and fixed material used is 3241 semiconductor filler strips in the coil fixing structure (5).Practical application shows: using the motor unit of the Stator Slots structure in high altitude localities operational excellence, occurring unit and the accidents such as discharges, burns, and can effectively ensure that unit operational safety, extend unit service life；And whole insulation systems are all made of home made materials, economic cost is low, is conducive to China's science and technology independent research and innovation, reduces the dependence and unstability of import foreign material.
Description
Technical field
The present invention relates to technical field of motor manufacture, especially a kind of motor stator groove portion insulation system.
Background technique
With the development of State Grid's industry, high altitude localities generating set is more and more.For conventional power unit, in Gao Hai
Rise sheer from level ground area operation, because of rarefaction of air, unit run when Stator Slots easily there is corona, so as to cause galvano-cautery, chemical attack and
The problems such as localized hyperthermia, causes bar insulation accelerated ageing, damages unit, shortens unit service life.Under High aititude, unit
The accident for causing complete machine to be damaged because of anti-corona deal with improperly happens occasionally.Especially power station height above sea level is in 3000m or more, machine
Group normal operation is higher to the requirement of Stator Slots insulation performance, and conventional stator groove portion structure is difficult to meet unit under complex environment
Service requirement, it is necessary to which specially treated is carried out to Stator Slots.In addition, the insulating materials that many motor units of domestic current use is equal
External import is relied on, it is at high cost, it is unfavorable for China's economic security, from the point of view of national long term growth, Key technique problem
Independent research and innovation must be relied on.
Summary of the invention
The purpose of the present invention is to overcome the shortcomings of the existing technology, and motor slot discharge can be effectively prevent and rise by providing one kind
Dizzy motor stator groove portion insulation system, it is good in high altitude localities operating status using the unit of the Stator Slots insulation system
It is good, in 40KV voltage test, Stator Slots not bloom.
The purpose of the present invention is achieved through the following technical solutions: a kind of motor stator groove portion insulation system, it includes fixed
Sub- iron core is provided with stator slot on stator core, and coil is arranged in stator slot, and the opening of stator slot is provided with slot wedge,
It is characterized in that: being provided with slot insulation structure and coil fixing structure between coil and stator slot, the slot insulation structure includes
Insulation glue-line, paint layer, rubber layer and low-resistance cloth, the insulation glue-line and paint layer are successively set on stator slot appearance
Face, rubber layer are coated on coil outer surface, and low-resistance cloth is wrapped in coil outermost, and the coil fixing structure includes semiconductor
Filler strip A, semiconductor filler strip B and semiconductor filler strip C are provided with semiconductor filler strip A, set between adjacent windings between coil and slot wedge
It is equipped with semiconductor filler strip B, is provided with semiconductor filler strip C in coil and the gap of stator slot end face.
Further, the insulation glue-line is J0706 room temperature curing glue-line.
Further, the rubber layer is III low-resistance sulphurated siliastic layer of YH50.
Further, the low-resistance cloth is TJ2641-2 low-resistance cloth.
Further, the semiconductor filler strip A, semiconductor filler strip B, semiconductor filler strip C are 3241 semiconductor filler strips.
Further, semiconductor filler strip D is provided in the gap of the coil and stator slot side.
Further, the semiconductor filler strip D is 3241 semiconductor filler strips.
Further, the slot wedge is two-way drawing groove wedge.
Further, the slot wedge is F grades of two-way drawing groove wedges or H grades of two-way drawing groove wedges.The slot wedge split resistance is high,
Cavity dimension rule can meet matching requirements very well, and waste small, saving resource.
The invention has the following advantages that insulation glue-line, paint layer, rubber is reasonably arranged in the Stator Slots insulation system
The insulating layer of the diversified forms such as layer and low-resistance cloth, effectively ensures the sealing and insulation performance of Stator Slots.It is online before coil embedding
One layer of silastic-layer is brushed on circle, using the leakproofness of silicon rubber, plays better insulation effect, and embed the wire and use low-resistance cloth bag
Coil is wrapped up in, elastic low-resistance cloth further increases sealing and insulation effect.Stator slot internal fixing structure all uses 3,241 half to lead
Body filler strip advantageously reduces stator slot inner potential, prevents the generation of corona in slot.Slot wedge uses F grades of two-way drawing groove wedges or H grades
Two-way drawing groove wedge, the slot wedge split resistance is high, and cavity dimension rule can meet matching requirements very well, and wastes small, saving money
Source.
Practical application shows well run in high altitude localities using the motor unit of the Stator Slots structure, for a long time
Use, do not occurred unit and the accidents such as discharge, burn, there is an anti-corona effect well, Stator Slots discharge inception voltage in 40KV or more,
It can effectively ensure that unit operational safety, extend unit service life.And whole insulation systems are all made of home made materials, economic cost
It is low, be conducive to China's science and technology independent research and innovation, reduce the dependence and unstability of import foreign material.
Detailed description of the invention
Fig. 1 is motor stator groove portion insulation system schematic cross-section of the present invention；
In figure: 1- stator core, 2- stator slot, 3- coil, 4- slot insulation structure, 41- insulation 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 pads
C, 54- semiconductor filler strip D, 6- slot wedge.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing, but protection scope of the present invention is not limited to following institute
It states.
As shown in Figure 1, a kind of motor stator groove portion insulation system, it includes stator core 1, is provided on stator core 1
Stator slot 2, coil 3 are arranged in stator slot 2, and the opening of stator slot 2 is provided with slot wedge 6, and slot wedge 6 uses F grades of two-way pullings
Slot wedge or H grades of two-way drawing groove wedges, the slot wedge split resistance is high, and cavity dimension rule can meet matching requirements very well, and waste
It is small, resource is saved, 3240 or 3248 laminates is generallyd use and is process.
Slot insulation structure 4 and coil fixing structure 5, the slot insulation structure 4 are provided between coil 3 and stator slot 2
Including insulation glue-line 41, paint layer 42, rubber layer 43 and low-resistance cloth 44, the insulation glue-line 41 and paint layer 42 are successively
In 2 outer surface of stator slot, the insulation glue-line 41 is J0706 room temperature curing glue-line for setting.When practical manufacture, first in stator slot
In 2 and base inner periphery sprays J0706 room temperature setting adhesives, after drying for 24 hours, sprays paint layer 42 in stator slot 2 again.
Rubber layer 43 is coated on 3 outer surface of coil, and low-resistance cloth 44 is wrapped in 3 outermost of coil.The rubber layer 43 is
III low-resistance sulphurated siliastic layer of YH50, the low-resistance cloth 44 are TJ2641-2 low-resistance cloth.Before coil 3 embeds the wire, in 3 straight line of coil
Position has marked plunger position, brushes the III low-resistance sulphurated siliastic of YH50 of one layer of about 0.1mm, then is rolled in TJ2641-2 low-resistance cloth
It is used as slot liner on coil 3, is embedded the wire.
The coil fixing structure 5 includes semiconductor filler strip A51, semiconductor filler strip B52 and semiconductor filler strip C53, line
It is provided with semiconductor filler strip A51 between circle 3 and slot wedge 6, is provided with semiconductor filler strip B52 between adjacent windings 3, coil 3 and fixed
Semiconductor filler strip C53 is provided in the gap of 2 end face of pilot trench.The semiconductor filler strip A51, semiconductor filler strip B52, semiconductor
Filler strip C53 is 3241 semiconductor filler strips.
When practical embedding, if there are gaps between 2 side of coil 3 and stator slot, in the seam of coil 3 and 2 side of stator slot
3241 semiconductor filler strips are equally set in gap.Filler strip is 3241 semiconductor filler strips, advantageously reduces 2 slot inner potential of stator slot,
Prevent the generation of corona in slot.
Claims (5)
1. a kind of motor stator groove portion insulation system, it includes stator core (1), and stator core is provided with stator slot on (1)
(2), coil (3) setting is in stator slot (2), and the opening of stator slot (2) is provided with slot wedge (6), it is characterised in that: coil
(3) slot insulation structure (4) and coil fixing structure (5), the slot insulation structure (4) packet are provided between stator slot (2)
Include insulation glue-line (41), paint layer (42), rubber layer (43) and low-resistance cloth (44), the insulation glue-line (41) and low-resistance paint
Layer (42) is successively set on stator slot (2) outer surface, and rubber layer (43) is coated on coil (3) outer surface, low-resistance cloth (44) package
In coil (3) outermost, the coil fixing structure (5) includes semiconductor filler strip A(51), semiconductor filler strip B(52) and half
Conductor filler strip C(53), semiconductor filler strip A(51 is provided between coil (3) and slot wedge (6)), adjacent windings are provided between (3)
Semiconductor filler strip B(52), semiconductor filler strip C(53 is provided in the gap of coil (3) and stator slot (2) end face)；The slot wedge
(6) it is two-way drawing groove wedge, is provided with semiconductor filler strip D(54 in the coil (3) and the gap of stator slot (2) side),
The semiconductor filler strip D(54) it is 3241 semiconductor filler strips.
2. a kind of motor stator groove portion insulation system according to claim 1, it is characterised in that: the insulation glue-line
It (41) is J0706 room temperature curing glue-line.
3. a kind of motor stator groove portion insulation system according to claim 1, it is characterised in that: the rubber layer (43)
For III low-resistance sulphurated siliastic layer of YH50.
4. a kind of motor stator groove portion insulation system according to claim 1, it is characterised in that: the low-resistance cloth (44)
For TJ2641-2 low-resistance cloth.
5. a kind of motor stator groove portion insulation system according to claim 1, it is characterised in that: the semiconductor filler strip
A(51), semiconductor filler strip B(52), semiconductor filler strip C(53) be 3241 semiconductor filler strips.
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 CN105245048A (en) | 2016-01-13 |
| CN105245048B true 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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| Country | Link |
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| CN (1) | CN105245048B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58182443A (en) * | 1982-04-20 | 1983-10-25 | Toshiba Corp | Rotor of rotary electric machine |
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2015
- 2015-11-12 CN CN201510768615.3A patent/CN105245048B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN105245048A (en) | 2016-01-13 |
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