CN102684407A - Method for protecting and fixing assembled permanent magnet in large-power permanent magnet motor - Google Patents
Method for protecting and fixing assembled permanent magnet in large-power permanent magnet motor Download PDFInfo
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- CN102684407A CN102684407A CN2012101620021A CN201210162002A CN102684407A CN 102684407 A CN102684407 A CN 102684407A CN 2012101620021 A CN2012101620021 A CN 2012101620021A CN 201210162002 A CN201210162002 A CN 201210162002A CN 102684407 A CN102684407 A CN 102684407A
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- permanent magnet
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Abstract
The invention relates to protection and fixing technology of a permanent magnet in a permanent magnet motor, in particular to a method for protecting and fixing the assembled permanent magnet in a large-power permanent magnet motor, which solves the problems that the protection and fixing methods for the permanent magnet in the existing permanent magnet motor can easily cause infirm fixing of the permanent magnet, damage on the original plating layer of the permanent magnet, high manufacturing cost of the permanent magnet motor, low production efficiency of the permanent magnet motor. The method for protecting and fixing the assembled permanent magnet in the large-power permanent magnet motor is realized by the steps as follows: adsorbing the permanent magnet on a motor iron core, and fixing the permanent magnet and the motor iron core in a mechanical manner; conducting insulated paint soaking treatment on the fixed permanent magnet and motor iron core; and drying the permanent magnet and the motor iron core which are subjected to insulated paint soaking treatment. The method is applicable to protection and fixing of the permanent magnet in the permanent magnet motor, especially protection and fixing of the permanent magnet in the large-power permanent magnet motor.
Description
Technical field
The present invention relates to the protection and the technique for fixing of permanent magnet in the magneto, specifically is protection and the fixing means after the permanent magnet assembling in a kind of high-power permanent magnet motor.
Background technology
Along with the extensive use of rare-earth permanent magnet material-Nd Fe B alloys, magneto has obtained fast development because of it has the little advantage such as in light weight of simple in structure, reliable, volume.In the magneto running, the permanent magnet in the motor can cause inefficacy because of reasons such as corrosion, vibrations.Can therefore, permanent magnet in the magneto is protected and fixedly be directly connected to magneto reliability service.
The protection and the fixing means of permanent magnet mainly comprise following two kinds in the existing magneto: first method is that permanent magnet is adsorbed on the electric machine iron core; Through mechanical system permanent magnet and electric machine iron core are fixed then; But after fixing the completion, permanent magnet and electric machine iron core are not carried out any processing.The shortcoming of this kind method is that permanent magnet is fixing not firm, causes that permanent magnet vibrates easily when magneto move, fault such as cause the permanent magnet loss of excitation, break, and then cause the permanent magnet inefficacy, influence the reliability service of magneto.Second method is that permanent magnet is adsorbed on the electric machine iron core, through bonded structural adhesive permanent magnet and electric machine iron core is carried out bonding or embedding then.The shortcoming of this kind method is: one, when being adsorbed on permanent magnet on the electric machine iron core, cause the damage of the original coating of permanent magnet easily, cause that corrosion takes place permanent magnet easily when magneto moves.Two, in bonding or embedding process; Big because of bonded structural adhesive density, mobile poor; Bonded structural adhesive can't fully be filled in the slit between permanent magnet and the electric machine iron core usually; Cause permanent magnet fixing not firm, cause that permanent magnet vibrates easily when magneto moves, fault such as cause the permanent magnet loss of excitation, break.Three, because the bonded structural adhesive cost is higher, cause the manufacturing cost of magneto higher.Four, because equipment rate bonding or embedding is not high, cause the production efficiency of magneto lower.Comprehensive above-mentioned analysis, in the existing magneto protection of permanent magnet and fixing means exist be prone to cause permanent magnet fixing not firm, be prone to cause the original coating damage of permanent magnet, be prone to cause the magneto manufacturing cost high and be prone to the problem that causes magneto production efficiency low.Based on this, be necessary to invent the protection and the fixing means of permanent magnet in a kind of brand-new magneto, with the protection that solves permanent magnet in the existing magneto and the problems referred to above that fixing means exists.
Summary of the invention
The present invention for the protection that solves permanent magnet in the existing magneto and fixing means be prone to cause permanent magnet fixing not firm, be prone to cause the original coating damage of permanent magnet, be prone to cause the magneto manufacturing cost high and be prone to the problem that causes magneto production efficiency low, protection and fixing means after the permanent magnet assembling in a kind of high-power permanent magnet motor are provided.
The present invention adopts following technical scheme to realize: protection and fixing means in a kind of high-power permanent magnet motor after the permanent magnet assembling; This method is to adopt following steps to realize: 1) permanent magnet is adsorbed on the electric machine iron core, and through mechanical system permanent magnet and electric machine iron core is fixed; 2) permanent magnet after fixing and electric machine iron core are soaked the insulating varnish processing, guarantee that insulating varnish fully covers permanent magnet surfaces and electric machine iron core surface, and guarantee that insulating varnish fully is filled in the slit between permanent magnet and the electric machine iron core; 3) permanent magnet and the electric machine iron core that soak after insulating varnish is handled are dried processing.
Compare with the protection and the fixing means of permanent magnet in the existing magneto; Protection and fixing means in a kind of high-power permanent magnet motor of the present invention after the permanent magnet assembling have following advantage: one, through permanent magnet and electric machine iron core are soaked the insulating varnish processing; Make the slit between permanent magnet and the electric machine iron core be insulated fully filling of lacquer, therefore eliminated the vibration that permanent magnet takes place when magneto moves.Two, through permanent magnet and electric machine iron core are soaked the insulating varnish processing; Make insulating varnish fully cover permanent magnet surfaces and electric machine iron core surface; Thereby formed the insulation paint film of one deck firm adhesion on permanent magnet surfaces and electric machine iron core surface; Permanent magnet has been formed the secondary protection, made the damage of the original coating of permanent magnet obtain abundant reparation, therefore eliminated the corrosion that permanent magnet takes place when magneto moves.Three, because the price of insulating varnish far below the price of bonded structural adhesive, has therefore reduced the manufacturing cost of magneto.Practice shows, is example with 3 megawatt wind-driven generators, can practice thrift the about 20000 yuan/platform of manufacturing cost.Four, owing to soak insulating varnish and handle and to adopt vacuum pressure impregnation equipment to carry out, and soak insulating varnish and handle and belong to maturation process, therefore improved the production efficiency of magneto.In sum; Protection and the fixing means that protection in a kind of high-power permanent magnet motor of the present invention after the permanent magnet assembling and fixing means efficiently solve permanent magnet in the existing magneto be prone to cause permanent magnet fixing not firm, be prone to cause the original coating damage of permanent magnet, be prone to cause magneto manufacturing cost height and be prone to the problem that causes magneto production efficiency low, strong guarantee the reliability service of magneto.
Protection and the fixing means that the present invention efficiently solves permanent magnet in the existing magneto be prone to cause permanent magnet fixing not firm, be prone to cause the original coating damage of permanent magnet, be prone to cause the magneto manufacturing cost high and be prone to the problem that causes magneto production efficiency low; Be applicable to the protection of permanent magnet in the magneto and fixing, be particularly useful for the protection of permanent magnet in the high-power permanent magnet motor and fixing.
Embodiment
Embodiment one
Protection and fixing means in a kind of high-power permanent magnet motor after the permanent magnet assembling, this method are to adopt following steps to realize:
1) permanent magnet is adsorbed on the electric machine iron core, and permanent magnet and electric machine iron core is fixed through mechanical system;
2) permanent magnet after fixing and electric machine iron core are soaked the insulating varnish processing, guarantee that insulating varnish fully covers permanent magnet surfaces and electric machine iron core surface, and guarantee that insulating varnish fully is filled in the slit between permanent magnet and the electric machine iron core;
3) permanent magnet and the electric machine iron core that soak after insulating varnish is handled are dried processing;
In the present embodiment, said step 2) in, soaks insulating varnish and be treated to the vacuum pressure that adopts vacuum pressure impregnation equipment to carry out and soak insulating varnish and handle;
During practical implementation, said step 2) insulating varnish and magneto armature in belong to a kind of insulating varnish with insulating varnish.
Embodiment two
Protection and fixing means in a kind of high-power permanent magnet motor after the permanent magnet assembling, this method are to adopt following steps to realize:
1) permanent magnet is adsorbed on the electric machine iron core, and permanent magnet and electric machine iron core is fixed through mechanical system;
2) permanent magnet after fixing and electric machine iron core are soaked the insulating varnish processing, guarantee that insulating varnish fully covers permanent magnet surfaces and electric machine iron core surface, and guarantee that insulating varnish fully is filled in the slit between permanent magnet and the electric machine iron core;
3) permanent magnet and the electric machine iron core that soak after insulating varnish is handled are dried processing;
In the present embodiment, said step 2) in, soaks insulating varnish and be treated to and directly soak insulating varnish and handle;
During practical implementation, said step 2) insulating varnish and magneto armature in belong to a kind of insulating varnish with insulating varnish.
Claims (3)
1. protection and the fixing means after the permanent magnet assembling in the high-power permanent magnet motor, it is characterized in that: this method is to adopt following steps to realize:
1) permanent magnet is adsorbed on the electric machine iron core, and permanent magnet and electric machine iron core is fixed through mechanical system;
2) permanent magnet after fixing and electric machine iron core are soaked the insulating varnish processing, guarantee that insulating varnish fully covers permanent magnet surfaces and electric machine iron core surface, and guarantee that insulating varnish fully is filled in the slit between permanent magnet and the electric machine iron core;
3) permanent magnet and the electric machine iron core that soak after insulating varnish is handled are dried processing.
2. protection and fixing means in a kind of high-power permanent magnet motor according to claim 1 after the permanent magnet assembling is characterized in that: said step 2), soak insulating varnish and be treated to the vacuum pressure that adopts vacuum pressure impregnation equipment to carry out and soak insulating varnish and handle.
3. protection and fixing means in a kind of high-power permanent magnet motor according to claim 1 after the permanent magnet assembling is characterized in that: said step 2), soak insulating varnish and be treated to and directly soak insulating varnish and handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101620021A CN102684407A (en) | 2012-05-23 | 2012-05-23 | Method for protecting and fixing assembled permanent magnet in large-power permanent magnet motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101620021A CN102684407A (en) | 2012-05-23 | 2012-05-23 | Method for protecting and fixing assembled permanent magnet in large-power permanent magnet motor |
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| Publication Number | Publication Date |
|---|---|
| CN102684407A true CN102684407A (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101620021A Pending CN102684407A (en) | 2012-05-23 | 2012-05-23 | Method for protecting and fixing assembled permanent magnet in large-power permanent magnet motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332372A (en) * | 2017-08-29 | 2017-11-07 | 中车株洲电机有限公司 | A kind of field structure of magneto |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1443818A (en) * | 2003-02-21 | 2003-09-24 | 中国科学院等离子体物理研究所 | High-strength epoxy impregnating varnish capable of using at ultra-low temp. and its preparation and application method |
| CN201319552Y (en) * | 2008-11-04 | 2009-09-30 | 新疆金风科技股份有限公司 | High-power permanent magnet synchronous machine |
| CN102005839A (en) * | 2010-11-30 | 2011-04-06 | 东方电气集团东方电机有限公司 | Megawatt-grade permanent magnet generator |
| CN102332764A (en) * | 2011-09-23 | 2012-01-25 | 株洲南车时代电气股份有限公司 | Permanent-magnet motor rotor and fixing method thereof |
-
2012
- 2012-05-23 CN CN2012101620021A patent/CN102684407A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1443818A (en) * | 2003-02-21 | 2003-09-24 | 中国科学院等离子体物理研究所 | High-strength epoxy impregnating varnish capable of using at ultra-low temp. and its preparation and application method |
| CN201319552Y (en) * | 2008-11-04 | 2009-09-30 | 新疆金风科技股份有限公司 | High-power permanent magnet synchronous machine |
| CN102005839A (en) * | 2010-11-30 | 2011-04-06 | 东方电气集团东方电机有限公司 | Megawatt-grade permanent magnet generator |
| CN102332764A (en) * | 2011-09-23 | 2012-01-25 | 株洲南车时代电气股份有限公司 | Permanent-magnet motor rotor and fixing method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107332372A (en) * | 2017-08-29 | 2017-11-07 | 中车株洲电机有限公司 | A kind of field structure of magneto |
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Application publication date: 20120919 |