CN107240974A - The fixed structure and method of permanent magnet in a kind of motor - Google Patents
The fixed structure and method of permanent magnet in a kind of motor Download PDFInfo
- Publication number
- CN107240974A CN107240974A CN201710645899.6A CN201710645899A CN107240974A CN 107240974 A CN107240974 A CN 107240974A CN 201710645899 A CN201710645899 A CN 201710645899A CN 107240974 A CN107240974 A CN 107240974A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- holding tank
- nylon resin
- cooling
- mixed solution
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/02—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies
- H02K15/03—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines of stator or rotor bodies having permanent magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
- H02K15/12—Impregnating, heating or drying of windings, stators, rotors or machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a kind of fixed structure of permanent magnet in motor, including rotor core, the permanent magnet holding tank being arranged on rotor core end face, the permanent magnet that is arranged in permanent magnet holding tank and the filling sealant for being filled in permanent magnet and permanent magnet holding tank gap.The present invention improves the service life of permanent magnet.By injecting nylon resin so that position of the permanent magnet in groove is relatively fixed, it is to avoid with colliding with for iron core, the life-span of such permanent magnet is mainly dependent on temperature of rotor and applied field strengths；The mixed solution implantation temperature of glass fibre and nylon resin fused solution is 260 280 degree, and the maximum operating temperature of rotor（That is the temperature grade of permanent magnet）For 180 degree, nylon resin will not soften at a temperature of working rotor.The nylon resin taken off is incubated 4 hours and indeformable at 200 degree.In addition, nylon resin will not produce influence beyong contemplation to the Distribution of Magnetic Field of motor.
Description
Technical field
The present invention relates to a kind of fixed structure of permanent magnet in motor and method.
Background technology
In plug-type magneto, there is dedicated slot in rotor core, for placing permanent magnet.In order that permanent magnet compared with
To be readily put into, while ensureing to collide with order to avoid damaging permanent magnet, the design of general groove is bigger than normal, i.e. permanent magnet trough and forever
Magnet is that gap coordinates.So during being rotated in rotor, permanent magnet and rotor core inevitably produce collision；
If the torque of motor, rotating speed are even turned to, change is very fast, and the collision between two parts will more acutely, and permanent magnet is powder smelting
Golden product, bearing such hit can cause it to divide, and accelerate failure.So, there is abnormal sound in motor, and electric property is deteriorated,
The quality problems such as temperature rise.
The content of the invention
It is an object of the invention to provide a kind of fixed structure of permanent magnet in motor and method.
To achieve these goals, the technical scheme that the present invention takes is as follows：
The fixed structure of permanent magnet in a kind of motor, including rotor core, the permanent magnet that is arranged on rotor core end face are accommodated
Groove, the permanent magnet being arranged in permanent magnet holding tank and the filling sealing for being filled in permanent magnet and permanent magnet holding tank gap
Layer.
Further, the permanent magnet coordinates with permanent magnet holding tank gap.
Further, the material of the filling sealant is nylon resin.
The fixing means of permanent magnet, comprises the following steps in a kind of motor：
The first step：In rotor core end face drill formation permanent magnet holding tank；
Second step：Permanent magnet is placed into permanent magnet holding tank；
3rd step：Model PA66 nylon resin is heated to 260-280 degree, nylon resin fused solution is obtained；
4th step：Glass fibre, the quality of glass fibre and nylon resin fused solution are added into above-mentioned nylon resin fused solution
Than for 3:7, obtain mixed solution；
5th step：The mixed solution that 4th step is obtained is injected into the space between permanent magnet and permanent magnet holding tank.
Further, the mixed solution in the 5th step is filled between permanent magnet and permanent magnet holding tank behind space, will
The mixed solution that rotor core is positioned in shady place, space carries out natural cooling.
Further, the mixed solution in the 5th step is filled between permanent magnet and permanent magnet holding tank behind space, will
The mixed solution that rotor core is positioned in cooling chamber, space carries out ladder cooling in cooling chamber.
Further, the ladder cooling span is 20 DEG C, and cooling room temperature reduces by 20 DEG C in every 5 minutes from 280 degree, cold
But indoor temperature is dropped to after 20 DEG C, and cooling chamber stops cooling.
Further, in cooling room temperature after each ladder cooling span, between permanent magnet and permanent magnet holding tank
Space in supplement injection mixed solution and fill up space.
Compared with prior art, having the beneficial effect that acquired by the present invention：
The present invention improves the service life of permanent magnet.By injecting nylon resin so that position of the permanent magnet in groove is relative
It is fixed, it is to avoid with colliding with for iron core, the life-span of such permanent magnet is mainly dependent on temperature of rotor and applied field strengths；
The mixed solution implantation temperature of glass fibre and nylon resin fused solution is 260-280 degree, and the maximum operating temperature of rotor（I.e.
The temperature grade of permanent magnet）For 180 degree, nylon resin will not soften at a temperature of working rotor.The nylon tree taken off
Fat is incubated 4 hours and indeformable at 200 degree.In addition, nylon resin the Distribution of Magnetic Field of motor will not be produced it is beyong contemplation
Influence.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of permanent magnet holding tank of the present invention；
Accompanying drawing 2 is the structural representation that permanent magnet of the present invention is positioned over permanent magnet holding tank；
Accompanying drawing 3 fills the structural representation in space for present invention filling sealant.
In the accompanying drawings：1 rotor core, 2 permanent magnet holding tanks, 3 permanent magnets, 4 filling sealants.
Embodiment
Further details of narration is carried out to the present invention below in conjunction with accompanying drawing.
As illustrated in the accompanying drawings from 1 to 3, in a kind of motor permanent magnet fixing means, including rotor core 1, be arranged on rotor core
Permanent magnet holding tank 2 on 1 end face, the permanent magnet 3 being arranged in permanent magnet holding tank 2 and it is filled in permanent magnet 3 and permanent magnetism
The filling sealant 4 of the gap of body holding tank 2.The permanent magnet 3 coordinates with the gap of permanent magnet holding tank 2.The filling sealing
The material of layer 4 is nylon resin.
The fixing means of permanent magnet, comprises the following steps in a kind of motor：The first step：In the end face drill shape of rotor core 1
Into permanent magnet holding tank 2；Second step：Permanent magnet 3 is placed into permanent magnet holding tank 2；3rd step：By model PA66 Buddhist nun
Imperial resin is heated to 260-280 degree, obtains nylon resin fused solution；4th step：Glass is added into above-mentioned nylon resin fused solution
The mass ratio of glass fiber, glass fibre and nylon resin fused solution is 3:7, obtain mixed solution；5th step：4th step is obtained
Mixed solution be injected into the space between permanent magnet 3 and permanent magnet holding tank 2, fill behind space, be positioned over shady place from
So cooling.As a kind of type of cooling, the mixed solution in above-mentioned 5th step fills permanent magnet 3 and permanent magnet holding tank 2
Between behind space, mixed solution rotor core 1 being positioned in shady place, space carries out natural cooling.As another cold
But the mixed solution in mode, the 5th step is filled between permanent magnet 3 and permanent magnet holding tank 2 behind space, by rotor core 1
The mixed solution being positioned in cooling chamber, space carries out ladder cooling in cooling chamber.The ladder cooling span is 20 DEG C, cooling
Room temperature reduces by 20 DEG C in every 5 minutes from 280 degree, and after cooling indoor temperature drops to 20 DEG C, cooling chamber stops cooling.In cooling chamber
Temperature is after each ladder cooling span, and into the space between permanent magnet 3 and permanent magnet holding tank 2, supplement injection mixes molten
Liquid.Ladder cooling can avoid occurring gap after expanding with heat and contract with cold, and sealing fixation is tighter.
The present invention improves the service life of permanent magnet.By injecting nylon resin so that position of the permanent magnet in groove
It is relatively fixed, it is to avoid with colliding with for iron core, the life-span of such permanent magnet is mainly dependent on temperature of rotor and externally-applied magnetic field is strong
Spend；The mixed solution implantation temperature of glass fibre and nylon resin fused solution is 260-280 degree, and the highest of rotor work temperature
Degree（That is the temperature grade of permanent magnet）For 180 degree, nylon resin will not soften at a temperature of working rotor.The Buddhist nun taken off
Imperial resin is incubated 4 hours and indeformable at 200 degree.In addition, nylon resin will not produce expectation to the Distribution of Magnetic Field of motor
Outer influence.
Embodiment described above is only the preferred embodiments of the present invention, and the simultaneously exhaustion of the feasible implementation of non-invention.It is right
For persons skilled in the art, any aobvious to made by it on the premise of without departing substantially from the principle of the invention and spirit and
Within the change being clear to, the claims that should be all contemplated as falling with the present invention.
Claims (8)
1. the fixed structure of permanent magnet in a kind of motor, it is characterised in that：It includes rotor core（1）, be arranged on rotor core
（1）Permanent magnet holding tank on end face（2）, be arranged on permanent magnet holding tank（2）Interior permanent magnet（3）And it is filled in permanent magnet
（3）With permanent magnet holding tank（2）The filling sealant of gap（4）.
2. the fixed structure of permanent magnet in a kind of motor according to claim 1, it is characterised in that：The permanent magnet（3）
With permanent magnet holding tank（2）Gap coordinates.
3. the fixed structure of permanent magnet in a kind of motor according to claim 1, it is characterised in that：The filling sealant
（4）Material be nylon resin.
4. the fixing means of permanent magnet in a kind of motor, it is characterised in that comprise the following steps：
The first step：In rotor core（1）End face drill formation permanent magnet holding tank（2）；
Second step：By permanent magnet（3）It is placed into permanent magnet holding tank（2）It is interior；
3rd step：Model PA66 nylon resin is heated to 260-280 degree, nylon resin fused solution is obtained；
4th step：Glass fibre, the quality of glass fibre and nylon resin fused solution are added into above-mentioned nylon resin fused solution
Than for 3:7, obtain mixed solution；
5th step：The mixed solution that 4th step is obtained is injected into permanent magnet（3）With permanent magnet holding tank（2）Between space
In.
5. the fixing means of permanent magnet in a kind of motor according to claim 4, it is characterised in that：It is described in 5th step
Mixed solution fills permanent magnet（3）With permanent magnet holding tank（2）Between behind space, by rotor core（1）Shady place is positioned over, it is empty
Mixed solution in gap carries out natural cooling.
6. the fixing means of permanent magnet in a kind of motor according to claim 4, it is characterised in that：It is described in 5th step
Mixed solution fills permanent magnet（3）With permanent magnet holding tank（2）Between behind space, by rotor core（1）Cooling chamber is positioned over, it is empty
Mixed solution in gap carries out ladder cooling in cooling chamber.
7. the fixing means of permanent magnet in a kind of motor according to claim 6, it is characterised in that：Ladder cooling across
Spend for 20 DEG C, cooling room temperature reduces by 20 DEG C in every 5 minutes from 280 degree, after cooling indoor temperature drops to 20 DEG C, cooling chamber stops
Cooling.
8. the fixing means of permanent magnet in a kind of motor according to claim 7, it is characterised in that：Exist in cooling room temperature
After each ladder cooling span, to permanent magnet（3）With permanent magnet holding tank（2）Between space in supplement injection mixed solution will
Space is filled up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710645899.6A CN107240974A (en) | 2017-08-01 | 2017-08-01 | The fixed structure and method of permanent magnet in a kind of motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710645899.6A CN107240974A (en) | 2017-08-01 | 2017-08-01 | The fixed structure and method of permanent magnet in a kind of motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107240974A true CN107240974A (en) | 2017-10-10 |
Family
ID=59989580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710645899.6A Pending CN107240974A (en) | 2017-08-01 | 2017-08-01 | The fixed structure and method of permanent magnet in a kind of motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107240974A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101356711A (en) * | 2006-01-11 | 2009-01-28 | 株式会社三井高科技 | Resin sealing method of permanent magnet to laminated core of rotor |
| CN103683597A (en) * | 2012-08-29 | 2014-03-26 | 丰田自动车株式会社 | Rotor, rotary electric machine provided with this rotor, and rotor manufacturing method |
| CN106899106A (en) * | 2015-12-17 | 2017-06-27 | Em－动力有限责任公司 | The rotor of motor |
-
2017
- 2017-08-01 CN CN201710645899.6A patent/CN107240974A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101356711A (en) * | 2006-01-11 | 2009-01-28 | 株式会社三井高科技 | Resin sealing method of permanent magnet to laminated core of rotor |
| CN103683597A (en) * | 2012-08-29 | 2014-03-26 | 丰田自动车株式会社 | Rotor, rotary electric machine provided with this rotor, and rotor manufacturing method |
| CN106899106A (en) * | 2015-12-17 | 2017-06-27 | Em－动力有限责任公司 | The rotor of motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171010 |
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| RJ01 | Rejection of invention patent application after publication |