CN101355270A - Halo-proof structure for motor stator coil and processing method thereof - Google Patents
Halo-proof structure for motor stator coil and processing method thereof Download PDFInfo
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- CN101355270A CN101355270A CNA2008101513678A CN200810151367A CN101355270A CN 101355270 A CN101355270 A CN 101355270A CN A2008101513678 A CNA2008101513678 A CN A2008101513678A CN 200810151367 A CN200810151367 A CN 200810151367A CN 101355270 A CN101355270 A CN 101355270A
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- stator coil
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- corona
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Abstract
The invention relates to an anticorona structure for a stator coil of a motor and a processing method thereof. The invention belongs to the technical field of motors. The anticorona structure for the stator coil of the motor is characterized in that the stator coil has a two-section type anticorona structure, a straight line part is provided with a resistance anticorona glass tape, and an end part is provided with a resistance anticorona glass tape. The processing method comprises the following steps that the stator coil adopts the two-section type anticorona structure, wherein (1) the coil is wrapped with main insulation; (2) the anticorona structure is wrapped, wherein the straight line part is wrapped with the resistance anticorona glass tape first, and the end part is wrapped with the glass tape; (3) the high-resistance protection treatment is performed, wherein the end part is half-wrapped with one to two layers of epoxy powder mica tapes as a protective tape of an anticorona layer; (4) the demolding is performed, wherein a layer of polyfluortetraethylene tape wraps the outside for the demolding; and (5) the compression molding forming is performed, wherein the coil is subjected to mold pressing and curing forming to obtain the anticorona structure for the stator coil of the motor. The anticorona structure has the advantages of simple process, convenient processing, avoiding the coil from appearing corona and electrocorrosion, steady electrical property, good anticorona effect and so on.
Description
Technical field
The invention belongs to technical field of motors, particularly relate to a kind of halo-proof structure for motor stator coil and processing method thereof.
Background technology
At present, HV Electric Machine Coil is transformed unit anti dizzy structure treatment process and is adopted the coating anti dizzy structure more.This anti dizzy structure is unreasonable, causes whole the unit corona seriously corroded that is in operation, and stator coil integral insulation quality descends, and coil is breakdown, and unit such as scraps at technical problem.
Summary of the invention
The technical problem of the present invention for existing in the solution known technology, and a kind of halo-proof structure for motor stator coil and processing method thereof are provided.
The purpose of this invention is to provide a kind of coil of avoiding and corona, galvano-cautery phenomenon occur, and electric performance stablity, anti-corona effective halo-proof structure for motor stator coil.
The technical scheme that halo-proof structure for motor stator coil of the present invention is taked is:
A kind of halo-proof structure for motor stator coil, stator coil has anti dizzy structure, is characterized in: stator coil is two sections anticorona structures, and straight line portion has the anti-corona glass glass of resistance silk ribbon, and there is the anti-corona glass tape of resistance the end.
Halo-proof structure for motor stator coil of the present invention can also adopt following technical measures:
Described halo-proof structure for motor stator coil is characterized in: the resistance of the anti-corona glass tape of straight line portion resistance is lower than the anti-corona glass tape resistance of end resistance.
Described halo-proof structure for motor stator coil is characterized in: 2 layers of anti-corona glass tape of resistance of end half-stack package.
Described halo-proof structure for motor stator coil is characterized in: bag 1-2 layer paulownia horse mica paper tape is applied in the end.
Two of purpose of the present invention provides that a kind of technology is simple, easy to process, process stabilizing, quality are guaranteed, can avoid coil the processing method of corona, anti-corona effective halo-proof structure for motor stator coil to occur.
The technical scheme that the processing method of halo-proof structure for motor stator coil of the present invention is taked is:
The processing method of halo-proof structure for motor stator coil is characterized in: stator coil adopts two sections anticorona structures, the anti-corona glass tape of line part subpackage resistance, and the anti-corona glass tape of end bag resistance, anticorona layer is once molding formed with main insulation, and processing technology is:
(1) coil bag main insulation
Stator coil is wrapped up main insulating layer;
(2) bag anti dizzy structure
Straight line portion is the anti-corona glass tape of bag resistance earlier, and the end is by the anti-corona glass tape of high low resistance bag resistance;
(3) the high resistant protection is handled
End half-stack package 1-2 layer epoxy mica tape is as the boundary belt of anticorona coating, and wrapping length is longer than the anticorona glass tape end of high resistance;
(4) demoulding
Outsourcing one deck teflin tape is used as the demoulding;
(5) compression molding
By die press technology for forming coil is carried out the molded curing moulding, obtain halo-proof structure for motor stator coil.
The processing method of halo-proof structure for motor stator coil of the present invention can also adopt following technical measures:
The processing method of described halo-proof structure for motor stator coil is characterized in: during the bag anti dizzy structure, and 2 layers of resistance semiconducting glass of end half-stack package silk ribbon.
Advantage that the present invention has and good effect:
Halo-proof structure for motor stator coil and processing method thereof are owing to adopted technical solution of the present invention, thereby it is simple to have technology, can avoid coil corona to occur, galvano-cautery phenomenon, and electric performance stablity, anti-corona advantage such as effective.And have following characteristics:
1, stator coil good looking appearance, the surface smoothing end does not have wedge angle, and inherent insulation property reach the high-class product requirement.
2, anti dizzy structure has quite high level, and effect is obvious.
3, owing to adopt die press technology for forming, the designing requirement of exterior cross-section size conforms forms smooth smooth insulating surface, and is energy-conservation, raw materials consumption is little.
4, low cost of manufacture, the anti dizzy structure environmental protection.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure, 1-stator core, 2-stator coil, complete low stopband, the full cured high band of 4-, the 5-paulownia horse mica paper tape of solidifying of 3-.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now also in conjunction with the accompanying drawings, be described in detail as follows:
Embodiment 1
A kind of halo-proof structure for motor stator coil, stator coil has anti dizzy structure, the stator coil 2 of its stator core 1 assembling is two sections anticorona structures, straight line portion has the anti-corona glass glass of low resistance silk ribbon to form full curing low resistance band 3, the anti-corona glass tape of end half-stack package 2 floor height resistance forms, full cured high band 4, the end external application is surrounded by 2 layers of paulownia horse mica paper tape 5.
The processing method of halo-proof structure for motor stator coil, its stator coil adopts two sections anticorona structures, the anti-corona glass tape of line part subpackage resistance, the anti-corona glass tape of end bag resistance, anticorona layer is once molding formed with main insulation, and processing technology is:
(1) coil bag main insulation
Stator coil is wrapped up main insulating layer;
(2) bag anti dizzy structure
Print by high low-resistance model, straight line portion is the anti-corona glass tape of bag low resistance earlier, and the end is by print again 2 layers of half-stack package high ohmic semiconductor glass tapes of model;
(3) the high resistant protection is handled
End half-stack package 1-2 layer epoxy mica tape is as the boundary belt of anticorona coating, and wrapping length is longer than high resistance glass silk ribbon end slightly;
(4) demoulding
Outsourcing one deck teflin tape is used as the demoulding;
(5) compression molding
By die press technology for forming coil is carried out the molded curing moulding, obtain halo-proof structure for motor stator coil.
(6) finished product detection operation
By standard GB/T7894-2001 " hydraulic turbine basic fundamental condition " regulation discharge inception voltage＞1.5V
N(V
NThe rated line voltage of motor) gets final product.This product is that the discharge inception voltage inner quality standard is at 2.75V
N+ 6.5KV corona free, good electric property.
The specific implementation process of present embodiment:
1, wrapping main insulation operation
A, used material: (1) semi-finished product coil (2) F level paulownia horse mica paper tape
B, used tool: the new bundling machine of (1) scissors (2)
C, making step: stator coil is placed on the bundling machine, adjusts the end geometric angle,, carry out main insulation and wrap up with the clamping that will go between of Clothoid type handle.
2, anti dizzy structure treatment process
1) bag low resistance operation
A, used material: (1) last process coil (2) solidifies low resistance band (3) stick entirely
B, used tool: the high low-resistance of (1) scissors (2) is made model (3) chalk
C, making step and method: at first print by high low-resistance model, half-stack package is fixed with stick around one deck low resistance, flows into subsequent processing.
2) the high stopband operation of bag
A, used material:
(1) the high low-resistance model of preceding operation coil (2) (3) teflin tape
B, used tool: (1) scissors (2) chalk
C, manufacturing step and method:
(1) the line rod that will wrap the low resistance band prints by high low-resistance model, bag high resistance anti dizzy structure.
(2) will wrap the coil of high resistance band, the outside bag 1-2 layer F level paulownia horse mica paper tape that applies is as the high resistance boundary belt.
Here emphasize, bag main insulation, low resistance anticorona coating, high resistance anticorona coating, employed gloves must separately use.
3, die press technology for forming
A, used material: (1) last operation coil (2) teflin tape
B, used tool: (1) bull hydraulic press equipment (2) is press-moulding die (3) hydraulic jack over the ground
C, making step and method
Mould pressing process adopts " one-shot forming " anticorona treatment process, i.e. after the main insulation wrapping, wrap corona-prevention belt in its outside, with the hot-forming curing process of main insulation.
4, detect operation
A, used material: the coil that (1) preceding operation is made
B, used tool: (1) special-purpose electrical detection facility (2) iron core anchor clamps
C, making step: stipulate that by GB GB/T7894-2001 " hydraulic generator basic fundamental condition " one minute discharge inception voltage standard is at 2.75V
N+ 6.5KV test.
Claims (6)
1. halo-proof structure for motor stator coil, stator coil has anti dizzy structure, it is characterized in that: stator coil is two sections anticorona structures, and straight line portion has the anti-corona glass tape of resistance, and there is the anti-corona glass tape of resistance the end.
2. halo-proof structure for motor stator coil according to claim 1 is characterized in that: the resistance of the anti-corona glass tape of straight line portion resistance is lower than the anti-corona glass tape resistance of end resistance.
3. halo-proof structure for motor stator coil according to claim 1 is characterized in that: 2 layers of anti-corona glass tape of resistance of end half-stack package.
4. halo-proof structure for motor stator coil according to claim 1 is characterized in that: bag 1-2 layer paulownia horse mica paper tape is applied in the end.
5. the processing method of halo-proof structure for motor stator coil according to claim 1, it is characterized in that: stator coil adopts two sections anticorona structures, the anti-corona glass tape of line part subpackage resistance, the anti-corona glass tape of end bag resistance, anticorona layer is once molding formed with main insulation, and processing technology is:
(1) coil bag main insulation
Stator coil is wrapped up main insulating layer;
(2) bag anti dizzy structure
Straight line portion is the anti-corona glass tape of bag resistance earlier, end bag glass tape;
(3) the high resistant protection is handled
End half-stack package 1-2 layer epoxy mica tape is as the boundary belt of anticorona coating, and wrapping length is longer than the glass tape end;
(4) demoulding
Outsourcing one deck teflin tape is used as the demoulding;
(5) compression molding
By die press technology for forming coil is carried out the molded curing moulding, obtain halo-proof structure for motor stator coil.
6. the processing method of halo-proof structure for motor stator coil according to claim 5 is characterized in that: during the bag anti dizzy structure, and 2 layers of resistance semiconducting glass of end half-stack package silk ribbon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101513678A CN101355270A (en) | 2008-09-18 | 2008-09-18 | Halo-proof structure for motor stator coil and processing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101513678A CN101355270A (en) | 2008-09-18 | 2008-09-18 | Halo-proof structure for motor stator coil and processing method thereof |
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| CN101355270A true CN101355270A (en) | 2009-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2008101513678A Pending CN101355270A (en) | 2008-09-18 | 2008-09-18 | Halo-proof structure for motor stator coil and processing method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101814782A (en) * | 2010-04-30 | 2010-08-25 | 天津市天发重型水电设备制造有限公司 | Anti-corona processing method of coil of stator of motor |
| CN101610018B (en) * | 2009-05-19 | 2011-05-11 | 天津市天发重型水电设备制造有限公司 | Compression molding method of motor frame coils |
| CN102158022A (en) * | 2011-05-18 | 2011-08-17 | 江苏冰城电材股份有限公司 | Method for manufacturing insulating structure of 3-5MW wind power generator stator coil |
| CN102158021A (en) * | 2011-05-18 | 2011-08-17 | 江苏冰城电材股份有限公司 | Method for manufacturing insulating structure of 5MW wind power generator stator coil |
| CN102364840A (en) * | 2011-07-01 | 2012-02-29 | 哈尔滨电机厂有限责任公司 | Method for manufacturing stator bar of air-cooling 200MW steam turbogenerator |
| CN103607086A (en) * | 2013-12-02 | 2014-02-26 | 哈尔滨电气动力装备有限公司 | Strip-shaped wire bar insulation process of large high-voltage motor |
| CN103904840A (en) * | 2014-04-18 | 2014-07-02 | 山东齐鲁电机制造有限公司 | Inner anticorona manufacturing technology of double Roebel coil bars of generator stator |
| CN114189082A (en) * | 2021-11-29 | 2022-03-15 | 南方电网调峰调频发电有限公司检修试验分公司 | Corona discharge suppression method and structure of generator stator bar and generator |
| CN116683682A (en) * | 2023-07-27 | 2023-09-01 | 北京金风科创风电设备有限公司 | Stator, generator, wind generating set and encapsulation method |
| CN116683683A (en) * | 2023-07-27 | 2023-09-01 | 北京金风科创风电设备有限公司 | Stator, generator, wind generating set and anti-corona treatment method |
| CN117736534A (en) * | 2023-11-16 | 2024-03-22 | 华电电力科学研究院有限公司 | PEEK-based novel stator bar end anti-corona belt and preparation method thereof |
-
2008
- 2008-09-18 CN CNA2008101513678A patent/CN101355270A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101610018B (en) * | 2009-05-19 | 2011-05-11 | 天津市天发重型水电设备制造有限公司 | Compression molding method of motor frame coils |
| CN101814782A (en) * | 2010-04-30 | 2010-08-25 | 天津市天发重型水电设备制造有限公司 | Anti-corona processing method of coil of stator of motor |
| CN102158022A (en) * | 2011-05-18 | 2011-08-17 | 江苏冰城电材股份有限公司 | Method for manufacturing insulating structure of 3-5MW wind power generator stator coil |
| CN102158021A (en) * | 2011-05-18 | 2011-08-17 | 江苏冰城电材股份有限公司 | Method for manufacturing insulating structure of 5MW wind power generator stator coil |
| CN102158022B (en) * | 2011-05-18 | 2012-12-05 | 江苏冰城电材股份有限公司 | Method for manufacturing insulating structure of 3-5MW wind power generator stator coil |
| CN102364840A (en) * | 2011-07-01 | 2012-02-29 | 哈尔滨电机厂有限责任公司 | Method for manufacturing stator bar of air-cooling 200MW steam turbogenerator |
| CN102364840B (en) * | 2011-07-01 | 2013-07-17 | 哈尔滨电机厂有限责任公司 | Method for manufacturing stator bar of air-cooling 200MW steam turbogenerator |
| CN103607086B (en) * | 2013-12-02 | 2016-02-24 | 哈尔滨电气动力装备有限公司 | Large high-voltage motor bar formula bar insulation technique |
| CN103607086A (en) * | 2013-12-02 | 2014-02-26 | 哈尔滨电气动力装备有限公司 | Strip-shaped wire bar insulation process of large high-voltage motor |
| CN103904840A (en) * | 2014-04-18 | 2014-07-02 | 山东齐鲁电机制造有限公司 | Inner anticorona manufacturing technology of double Roebel coil bars of generator stator |
| CN103904840B (en) * | 2014-04-18 | 2016-05-18 | 山东齐鲁电机制造有限公司 | A kind of interior anti-corona manufacturing process of generator unit stator double Roebel bar |
| CN114189082A (en) * | 2021-11-29 | 2022-03-15 | 南方电网调峰调频发电有限公司检修试验分公司 | Corona discharge suppression method and structure of generator stator bar and generator |
| CN116683682A (en) * | 2023-07-27 | 2023-09-01 | 北京金风科创风电设备有限公司 | Stator, generator, wind generating set and encapsulation method |
| CN116683683A (en) * | 2023-07-27 | 2023-09-01 | 北京金风科创风电设备有限公司 | Stator, generator, wind generating set and anti-corona treatment method |
| CN116683683B (en) * | 2023-07-27 | 2023-10-31 | 北京金风科创风电设备有限公司 | Stator, generator, wind generating set and anti-corona treatment method |
| CN116683682B (en) * | 2023-07-27 | 2024-02-23 | 北京金风科创风电设备有限公司 | Stator, generator, wind generating set and encapsulation method |
| CN117736534A (en) * | 2023-11-16 | 2024-03-22 | 华电电力科学研究院有限公司 | PEEK-based novel stator bar end anti-corona belt and preparation method thereof |
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Open date: 20090128 |