CN203562857U - Fixing structure of inner rotor motor permanent magnet - Google Patents
Fixing structure of inner rotor motor permanent magnet Download PDFInfo
- Publication number
- CN203562857U CN203562857U CN201320680128.8U CN201320680128U CN203562857U CN 203562857 U CN203562857 U CN 203562857U CN 201320680128 U CN201320680128 U CN 201320680128U CN 203562857 U CN203562857 U CN 203562857U
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- Prior art keywords
- permanent magnet
- face
- motor
- permanent
- fixing structure
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- Expired - Lifetime
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- 239000000853 adhesive Substances 0.000 claims abstract description 4
- 230000001070 adhesive effect Effects 0.000 claims abstract description 4
- 229920006335 epoxy glue Polymers 0.000 claims abstract description 4
- 239000011230 binding agent Substances 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 abstract 2
- 230000003137 locomotive effect Effects 0.000 description 15
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model relates to a fixing structure of an inner rotor motor permanent magnet. The fixing structure comprises a motor rotor core and the permanent magnet fixedly arranged on the outer circumference of the motor rotor core. The permanent magnet adheres to the outer circumference of the motor rotor core through an adhesion agent. End plates are fixedly arranged at the two ends of the motor rotor core in the axial direction. Each end plate comprises a base and fixing ends evenly distributed on the outer circumference of the base. The fixing ends and the permanent magnet are tightly matched. The adhesion agent is epoxy glue or anaerobic adhesive. Bumps are arranged on the outer circumference of the motor rotor core. The fixing ends comprise the first fixing ends, the second fixing ends and the third fixing ends. The permanent magnet comprises a first end face, a second end face and a third end face. The first fixing ends make contact with the third end face of the permanent magnet. The second fixing ends make contact with the second end face of the permanent magnet. The third fixing ends make contact with the first end face of the permanent magnet. The fixing structure can enable the permanent magnet to be firm and stable and not to fall off, the air gap between a stator and a rotor is not affected, and performance of an inner rotor high-speed motor is improved.
Description
Technical field
The utility model relates to technical field of motors, is specifically related to a kind of inner rotor motor magnet fixing structure of permanent.
Background technology
In household electric appliances, internal rotor high-speed electric expreess locomotive is because performance is good, low price is widely used.Existing internal rotor high-speed electric expreess locomotive permanent magnet fixing means comprises that injection moulding is fixed, permanent magnet embeds the methods such as rotor core and permanent magnet appearance surface cover steel bushing.Injection moulding fixation application is in internal rotor high-speed electric expreess locomotive time, and permanent magnet easily comes off, and has affected the stability of high-speed electric expreess locomotive operation.And permanent magnet embeds the method for rotor core and permanent magnet appearance surface cover steel bushing, under same process condition, can cause the air gap between high-speed electric expreess locomotive stator and rotor to become large, reduce the performance of internal rotor high-speed electric expreess locomotive.
Utility model content
The purpose of this utility model is to provide a kind of inner rotor motor magnet fixing structure of permanent, the fixed structure of this permanent magnet, can make reliable stable the fixing of permanent magnet not come off, and not affect the air gap between motor stator and rotor, thereby improve the performance of internal rotor high-speed electric expreess locomotive.
For achieving the above object, the utility model has adopted following technical scheme: a kind of inner rotor motor magnet fixing structure of permanent, comprise motor rotor core and the permanent magnet that is installed in motor rotor core excircle, described permanent magnet is bonded on motor rotor core excircle by binding agent, and the axial two ends of described motor rotor core are installed with end plate.
Described end plate comprises base and be evenly distributed on the stiff end on base excircle, and described stiff end and permanent magnet closely cooperate.
Described binding agent is epoxy glue.
Described binding agent is anaerobic adhesive.
Described motor rotor core excircle is provided with projection, and is uniformly distributed.
Described stiff end comprises the first stiff end, the second stiff end and the 3rd stiff end; Described permanent magnet comprises the first end face, the second end face and the 3rd end face; The first described stiff end contacts with the 3rd end face of permanent magnet, and the second described stiff end contacts with the second end face of permanent magnet, and the 3rd described stiff end contacts with the first end face of permanent magnet.
Described projection is semi-cylindrical, and radius is not more than 0.2mm.
The first end face of described permanent magnet and the angle of the second end face are 90 degree.
The first end face of described permanent magnet and the angle of the second end face are greater than 90 degree.
Advantage of the present utility model:
(1) the utility model is by being fixed permanent magnet from motor rotor core two ends with end plate, the part that fixed position can not affect in the middle part of permanent magnet and stator works, thereby can not change the air gap between rotor and stator, improve the stability of internal rotor high-speed electric expreess locomotive.
(2) tip plate configurations that the utility model adopts closely cooperates by three stiff ends of three end faces and permanent magnet, can either guarantee the steadiness of permanent magnet on rotor axial, can guarantee that again motor rotor core is in rotary course, permanent magnet can not be moved in direction of rotation.
The utility model can make reliable stable the fixing of permanent magnet not come off, and does not affect the air gap between motor stator and rotor, thereby has improved the performance of internal rotor high-speed electric expreess locomotive.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is vertical view of the present utility model;
Fig. 3 is the A-A cutaway view of the Fig. 2 in embodiment 1;
Fig. 4 is the A-A cutaway view of the Fig. 2 in embodiment 2;
Fig. 5 is the structural representation of motor rotor core;
Fig. 6 is the magnet structure schematic diagram in embodiment 1;
Fig. 7 is the magnet structure schematic diagram in embodiment 2;
Fig. 8 is the tip plate configurations schematic diagram in embodiment 1;
Fig. 9 is the tip plate configurations schematic diagram in embodiment 2.
Wherein:
1, end plate, 2, motor rotor core, 3, permanent magnet, 4, projection, 11, the first stiff end of end plate, 12, the second stiff end of end plate, 13, the 3rd stiff end of end plate, 31, the first end face of permanent magnet, 32, the second end face of permanent magnet, the 3rd end face of 33 permanent magnets.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
A kind of inner rotor motor magnet fixing structure of permanent as shown in Fig. 1-Fig. 9, comprise motor rotor core 2 and the permanent magnet 3 that is installed in motor rotor core 2 excircles, permanent magnet 3 is bonded on motor rotor core 2 excircles by binding agent, and the axial two ends of motor rotor core 2 are installed with end plate 1.Specifically, binding agent is that epoxy glue or binding agent are anaerobic adhesive.By using the strong highly effective binder of cementitiousness that permanent magnet is fixed to motor rotor core surface, and utilize the end plate with ad hoc structure from motor rotor core two ends, permanent magnet to be reinforced, thereby guaranteed that internal rotor high-speed rotary motor is in High Rotation Speed process, permanent magnet can not come off, and has improved the stability of internal rotor high-speed electric expreess locomotive.
Further, end plate 1 comprises base 14 and is evenly distributed on the stiff end on base 14 excircles, and stiff end and permanent magnet 3 closely cooperate.Specifically, stiff end comprises the first stiff end 11, the second stiff end 12 and the 3rd stiff end 13; Described permanent magnet comprises the first end face 31, the second end face 32 and the 3rd end face 33; The first described stiff end 11 contacts with the 3rd end face 33 of permanent magnet, and the second described stiff end 12 contacts with the second end face 32 of permanent magnet, and the 3rd described stiff end 13 contacts with the first end face 31 of permanent magnet.End plate passes through the upper surface with permanent magnet, and He Liangge side, lower surface closely cooperates, thereby has guaranteed the stability running up in process at motor.The close contact of the 3rd end face by end plate the first stiff end and permanent magnet, can guarantee that motor is in rotary course, and along in direction of rotation, the first stiff end can be given resistance of the 3rd end face, prevents that permanent magnet from moving along direction of rotation.By the second end face close contact of end plate the second stiff end and permanent magnet, the 3rd end face close contact of the 3rd stiff end and permanent magnet, can guarantee that permanent magnet is not moved on motor rotor core is axial.On the basis with binding agent fixed permanent magnet, recycling end plate carries out second consolidation from two ends to permanent magnet, so even inner rotor motor High Rotation Speed, permanent magnet can not come off from rotor, thereby can not affect the performance of motor.
Further, motor rotor core 2 excircles are provided with projection 4.Specifically, projection 4 is semi-cylindrical, and radius is not more than 0.2mm.By projection is evenly set on motor rotor core excircle, can guarantee can smear when smearing binding agent evenly.Thereby make each permanent magnet surfaces on a circumference, guaranteed that the air gap between motor stator and rotor is stable, stable magnetic field, and motor performance is stable.Protruding radius is made as and is less than or equal to 0.2mm, both can play the effect of object of reference, can save again material.
Further, the first end face 31 of permanent magnet and the angle of the second end face 32 are 90 degree.By the angle of the first end face and the second end face is made as to 90 degree, can be without permanent magnet be processed, make the fixation procedure of permanent magnet more simple and convenient.
The first end face 31 of permanent magnet and the angle of the second end face 32 are greater than 90 degree, and other are with embodiment 1.By the first end face of permanent magnet and the angle of the second end face, be set to be greater than 90 degree, the end sections that is about to permanent magnet cuts, and will be arranged to inclined-plane with the contact-making surface of end plate.So both saved permanent magnet material, and can make again the performance of motor rotor core more stable.
In sum, a kind of inner rotor motor magnet fixing structure of permanent of the utility model, first by the strong binding agent of cementitiousness, permanent magnet is bonded in to the rotor core surface of internal rotor high-speed electric expreess locomotive, avoid easily the come off problem of existing internal rotor high-speed electric expreess locomotive permanent magnet in fixing, thereby improved the performance of internal rotor high-speed electric expreess locomotive.Secondly, by permanent magnet being fixed from motor rotor core two ends with end plate, the part that fixed position can not affect in the middle part of permanent magnet and stator works, thus can not change the air gap between rotor and stator, improved the stability of internal rotor high-speed electric expreess locomotive.Again, the tip plate configurations that the utility model adopts closely cooperates by three stiff ends of three end faces and permanent magnet, can either guarantee the steadiness of permanent magnet on rotor axial, can guarantee that again motor rotor core is in rotary course, permanent magnet can not be moved in direction of rotation.The utility model can make reliable, stable the fixing of permanent magnet not come off, and does not affect the air gap between motor stator and rotor, thereby has improved the performance of internal rotor high-speed electric expreess locomotive.
Above-described embodiment is described preferred implementation of the present utility model; not scope of the present utility model is limited; do not departing under the prerequisite of the utility model design spirit; various distortion and improvement that those of ordinary skills make the technical solution of the utility model, all should fall in the definite protection range of the utility model claims.
Claims (10)
1. an inner rotor motor magnet fixing structure of permanent, comprise motor rotor core (2) and be installed in the permanent magnet (3) of motor rotor core (2) excircle, it is characterized in that: described permanent magnet (3) is bonded on motor rotor core (2) excircle by binding agent, described motor rotor core (2) is axially installed with end plate (1) in two ends.
2. a kind of inner rotor motor magnet fixing structure of permanent according to claim 1, it is characterized in that: described end plate (1) comprises base (14) and be evenly distributed on the stiff end on base (14) excircle, described stiff end and permanent magnet (3) closely cooperate.
3. a kind of inner rotor motor magnet fixing structure of permanent according to claim 1, is characterized in that: described binding agent is epoxy glue.
4. a kind of inner rotor motor magnet fixing structure of permanent according to claim 1, is characterized in that: described binding agent is anaerobic adhesive.
5. a kind of inner rotor motor magnet fixing structure of permanent according to claim 1, is characterized in that: described motor rotor core (2) excircle is provided with projection (4).
6. a kind of inner rotor motor magnet fixing structure of permanent according to claim 2, is characterized in that: described stiff end comprises the first stiff end (11), the second stiff end (12) and the 3rd stiff end (13); Described permanent magnet comprises the first end face (31), the second end face (32) and the 3rd end face (33); Described the first stiff end (11) contacts with the 3rd end face (33) of permanent magnet, described the second stiff end (12) contacts with second end face (32) of permanent magnet, and the 3rd described stiff end (13) contacts with first end face (31) of permanent magnet.
7. a kind of inner rotor motor magnet fixing structure of permanent according to claim 5, is characterized in that: described projection (4) is semi-cylindrical, and radius is not more than 0.2mm.
8. a kind of inner rotor motor magnet fixing structure of permanent according to claim 5, is characterized in that: described projection (4) is evenly distributed on motor rotor core (2) excircle.
9. a kind of inner rotor motor magnet fixing structure of permanent according to claim 6, is characterized in that: first end face (31) of described permanent magnet and the angle of the second end face (32) are 90 degree.
10. a kind of inner rotor motor magnet fixing structure of permanent according to claim 6, is characterized in that: first end face (31) of described permanent magnet and the angle of the second end face (32) are greater than 90 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320680128.8U CN203562857U (en) | 2013-10-31 | 2013-10-31 | Fixing structure of inner rotor motor permanent magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320680128.8U CN203562857U (en) | 2013-10-31 | 2013-10-31 | Fixing structure of inner rotor motor permanent magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203562857U true CN203562857U (en) | 2014-04-23 |
Family
ID=50512555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320680128.8U Expired - Lifetime CN203562857U (en) | 2013-10-31 | 2013-10-31 | Fixing structure of inner rotor motor permanent magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203562857U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545958A (en) * | 2013-10-31 | 2014-01-29 | 合肥荣事达三洋电器股份有限公司 | Fixing structure and method of inner rotor motor permanent magnet |
| CN104037964A (en) * | 2014-05-16 | 2014-09-10 | 铜陵和武机械制造有限责任公司 | Shockproof rotor |
-
2013
- 2013-10-31 CN CN201320680128.8U patent/CN203562857U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545958A (en) * | 2013-10-31 | 2014-01-29 | 合肥荣事达三洋电器股份有限公司 | Fixing structure and method of inner rotor motor permanent magnet |
| CN104037964A (en) * | 2014-05-16 | 2014-09-10 | 铜陵和武机械制造有限责任公司 | Shockproof rotor |
| CN104037964B (en) * | 2014-05-16 | 2017-01-11 | 铜陵和武机械制造有限责任公司 | Shockproof rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: WHIRLPOOL (CHINA) CO., LTD. Free format text: FORMER NAME: HEFEI RONGSHIDA SANYO ELECTRIC CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 230088 No. 96 science Avenue, hi tech Zone, Anhui, Hefei Patentee after: WHIRLPOOL CHINA Co.,Ltd. Address before: 230088 No. 96 science Avenue, hi tech Zone, Anhui, Hefei Patentee before: Whirlpool (China) Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |
|
| CX01 | Expiry of patent term |