CN105990924A - High-speed motor rotor with slots at both ends of permanent magnet and bond axes being integrated - Google Patents
High-speed motor rotor with slots at both ends of permanent magnet and bond axes being integrated Download PDFInfo
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- CN105990924A CN105990924A CN201510073467.3A CN201510073467A CN105990924A CN 105990924 A CN105990924 A CN 105990924A CN 201510073467 A CN201510073467 A CN 201510073467A CN 105990924 A CN105990924 A CN 105990924A
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- permanent magnet
- key axle
- groove
- motor
- key
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Abstract
The invention relates to a high-speed motor rotor with slots at both ends of a permanent magnet and bond axes being integrated, which comprises a permanent magnet and bond axis integration structures, and is characterized in that two ends of the permanent magnet are respectively provided with convex blocks which are connected with the bond axis structures in a matched manner, and each convex block is provided with a groove in which the bond axis integration structure is inserted. Compared with the prior art, the high-speed motor rotor has the advantages that the permanent magnet is high in space occupation ratio, the electromagnetic performance is improved, and the like.
Description
Technical field
The present invention relates to a kind of high speed rotor of motor, especially relate to a kind of permanent magnet two ends fluting and key axle one
High speed rotor of motor.
Background technology
High-speed small motor, in order to obtain less rotary inertia and reduce the centrifugal force impact on permanent magnet, is generally selected
The magnet structure that draw ratio is big, as it is shown in figure 1, a is armature spindle, b is permanent magnet, and c is (left for balance ring
Right each one).This structure is processed elongated hole on permanent magnet and is cooperatively formed rotatable parts with axle, has parts
Few, the easily feature of assembling.But, permanent magnet space accounting is little, has occupied space with the shaft part of permanent magnet bonding,
Space availability ratio is the highest.
In order to solve the impact that elongated hole structure brings, there is document to propose permanent magnet two ends and open the clamping knot of rectangle keyway
Configuration formula, as shown in Figure 2.This structure has abandoned the thinking that elongated hole coordinates, by key A by permanent magnet B
Couple together with axle C, increase the space accounting of permanent magnet.But, there may be relatively big inclined after key A assembling
Heart amount, brings dynamic equilibrium problems.Bottom rectangular channel D, (right angle) there may be stress concentration.When glue lost efficacy,
Key A gets loose to throw away and causes motor failure.
Summary of the invention
Defect that the purpose of the present invention is contemplated to overcome above-mentioned prior art to exist and a kind of permanent magnet two ends are provided
Fluting and the high speed rotor of motor of key axle one.
The purpose of the present invention can be achieved through the following technical solutions:
A kind of permanent magnet two ends fluting and the high speed rotor of motor of key axle one, including permanent magnet, it is characterised in that
Also including key axle integrative-structure, described permanent magnet is respectively arranged at two ends with the projection being connected with key axle integrative-structure,
This projection is provided with the groove allowing key axle integrative-structure insert.
Described key axle integrative-structure includes armature spindle and the connecting portion coordinated with permanent magnet.
Described connecting portion is recessed with permanent magnet in including the cylindrical groove coordinated with permanent magnet projection and being located at cylindrical groove
The key of slot fit.
Described permanent magnet groove is isosceles trapezoid groove.
The bottom angle of described dovetail groove is obtuse angle.
Described connecting portion is connected with permanent magnet by glue.
Compared with prior art, the invention have the advantages that
1) compared with elongated hole structure, permanent magnet space of the present invention accounting is high, improves electromagnetic performance.
2) compared with the rectangle keyway clamp structure of two ends, key axle integrative-structure of the present invention it can be avoided that key install less than
The problem that the offset that causes of position is bigger.
3) compared with the rectangle keyway clamp structure of two ends, key axle integrative-structure of the present invention it can be avoided that glue lost efficacy after,
Key gets loose and throws away the situation causing motor failure.
4) compared with the rectangle keyway clamp structure of two ends, key axle integrative-structure of the present invention reduces physical dimension, reduces
Number of parts, adds system reliability.
5) compared with the rectangle keyway clamp structure of two ends, it is obtuse angle bottom dovetail groove of the present invention, it is possible to avoid rectangle
The problem of stress concentration that groove causes.
6) compared with the rectangle keyway clamp structure of two ends, inclined-plane, dovetail groove both sides of the present invention is than rectangular channel lateralarea
Greatly, by increasing capacitance it is possible to increase glued joint area, the cohesive force of permanent magnet and key axle integrative-structure is increased.
7) compared with the rectangle keyway clamp structure of two ends, inclined-plane, dovetail groove both sides of the present invention stress is decomposed into radially pressure
Power and axial compressive force, permanent magnet boss bottom is less by moment of flexure, and material tension stress is less.Rectangular channel side is only subject to
Radial pressure, relatively big to trench bottom moment of flexure, material tension stress is bigger.Therefore, trapezoid groove structure of the present invention compares square
Shape groove structure is long for service life, and opposing shock loading ability is strong.
Accompanying drawing explanation
Fig. 1 is existing elongated hole rotor structure schematic diagram；
Fig. 2 is existing two ends rectangle keyway grip roll structural representations；
Fig. 3 is the structural representation of the present invention.
Detailed description of the invention
The present invention is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment
As it is shown on figure 3, a kind of permanent magnet two ends fluting and the high speed rotor of motor of key axle one, including permanent magnet 4
With key axle integrative-structure 1,6, described permanent magnet 4 is respectively arranged at two ends with and coordinates with key axle integrative-structure 1,6 even
The projection 3,5 connect, this projection 3,5 is provided with the groove 2 allowing key axle integrative-structure insert.
Described key axle integrative-structure 1,6 process on axle from the cylindrical groove 8 coordinated with permanent magnet projection and
The connecting portion of key 7 composition coordinated with permanent magnet groove 2 in being located at cylindrical groove 8.
Described permanent magnet groove 2 is isosceles trapezoid groove.The bottom angle of described dovetail groove is obtuse angle.Described
Connecting portion is connected with permanent magnet by glue.
Claims (6)
1. permanent magnet two ends fluting and a high speed rotor of motor for key axle one, including permanent magnet, its feature exists
In, also including key axle integrative-structure, described permanent magnet is respectively arranged at two ends with and is connected with key axle integrative-structure
Projection, this projection is provided with the groove allowing key axle integrative-structure insert.
A kind of permanent magnet two ends the most according to claim 1 fluting and the high speed rotor of motor of key axle one,
It is characterized in that, described key axle integrative-structure includes armature spindle and the connecting portion coordinated with permanent magnet.
A kind of permanent magnet two ends the most according to claim 2 fluting and the high speed rotor of motor of key axle one,
It is characterized in that, described connecting portion include the cylindrical groove coordinated with permanent magnet projection and be located at cylindrical groove in forever
The key that magnet groove coordinates.
4. slot according to a kind of permanent magnet two ends described in claim 1 or 3 and the high-speed electric expreess locomotive of key axle one turns
Son, it is characterised in that described permanent magnet groove is isosceles trapezoid groove.
A kind of permanent magnet two ends the most according to claim 4 fluting and the high speed rotor of motor of key axle one,
It is characterized in that, the bottom angle of described dovetail groove is obtuse angle.
A kind of permanent magnet two ends the most according to claim 2 fluting and the high speed rotor of motor of key axle one,
It is characterized in that, described connecting portion is connected with permanent magnet by glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510073467.3A CN105990924B (en) | 2015-02-11 | 2015-02-11 | A kind of high speed rotor of motor of permanent magnet both ends fluting and key axis one |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510073467.3A CN105990924B (en) | 2015-02-11 | 2015-02-11 | A kind of high speed rotor of motor of permanent magnet both ends fluting and key axis one |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105990924A true CN105990924A (en) | 2016-10-05 |
| CN105990924B CN105990924B (en) | 2019-02-22 |
Family
ID=57042036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510073467.3A Active CN105990924B (en) | 2015-02-11 | 2015-02-11 | A kind of high speed rotor of motor of permanent magnet both ends fluting and key axis one |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105990924B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5936324A (en) * | 1998-03-30 | 1999-08-10 | Genetic Microsystems Inc. | Moving magnet scanner |
| CH693014A5 (en) * | 1997-09-17 | 2003-01-15 | Myonic Ag | Rotor for electric micro motor with stator with at least two windings has rotor section with permanent magnet irreversibly attached to two ends of divided rotor shaft |
| CN1759518A (en) * | 2003-01-21 | 2006-04-12 | 帕特里克·T·麦克马伦 | Energy storage flywheel with minimum power magnetic bearing and motor/generator |
| CN102290893A (en) * | 2010-06-15 | 2011-12-21 | 麦克森发电机股份公司 | Small electric motor |
| CN202978480U (en) * | 2012-11-05 | 2013-06-05 | 贵州航天林泉电机有限公司 | Cylindrical magnet steel permanent magnet rotor |
| CN103595211A (en) * | 2013-11-19 | 2014-02-19 | 江苏航天动力机电有限公司 | High-speed permanent magnet synchronous motor three-section rotary shaft structure |
| CN204465186U (en) * | 2015-02-11 | 2015-07-08 | 上海鸣志电器股份有限公司 | The high speed rotor of motor of permanent magnet two ends fluting and key axle one |
-
2015
- 2015-02-11 CN CN201510073467.3A patent/CN105990924B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH693014A5 (en) * | 1997-09-17 | 2003-01-15 | Myonic Ag | Rotor for electric micro motor with stator with at least two windings has rotor section with permanent magnet irreversibly attached to two ends of divided rotor shaft |
| US5936324A (en) * | 1998-03-30 | 1999-08-10 | Genetic Microsystems Inc. | Moving magnet scanner |
| CN1759518A (en) * | 2003-01-21 | 2006-04-12 | 帕特里克·T·麦克马伦 | Energy storage flywheel with minimum power magnetic bearing and motor/generator |
| CN102290893A (en) * | 2010-06-15 | 2011-12-21 | 麦克森发电机股份公司 | Small electric motor |
| CN202978480U (en) * | 2012-11-05 | 2013-06-05 | 贵州航天林泉电机有限公司 | Cylindrical magnet steel permanent magnet rotor |
| CN103595211A (en) * | 2013-11-19 | 2014-02-19 | 江苏航天动力机电有限公司 | High-speed permanent magnet synchronous motor three-section rotary shaft structure |
| CN204465186U (en) * | 2015-02-11 | 2015-07-08 | 上海鸣志电器股份有限公司 | The high speed rotor of motor of permanent magnet two ends fluting and key axle one |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105990924B (en) | 2019-02-22 |
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Effective date of registration: 20201120 Address after: 215400 second floor, North Ring Road Administrative Service Center, Taicang Port Economic and Technological Development Zone, Taicang City, Suzhou City, Jiangsu Province Patentee after: Mingzhi electrical appliances (Taicang) Co.,Ltd. Address before: 201107 Shanghai city Minhang District min North Industrial Zone No. 168 Jia Ming Patentee before: SHANGHAI MOONS' ELECTRIC Co.,Ltd. |