CN108667174A - Surface permanent magnetic rotor and motor - Google Patents
Surface permanent magnetic rotor and motor Download PDFInfo
- Publication number
- CN108667174A CN108667174A CN201710207765.6A CN201710207765A CN108667174A CN 108667174 A CN108667174 A CN 108667174A CN 201710207765 A CN201710207765 A CN 201710207765A CN 108667174 A CN108667174 A CN 108667174A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- elastic piece
- permanent magnetic
- trough
- magnetic rotor
- 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
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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
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/278—Surface mounted magnets; Inset magnets
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The invention discloses a kind of surface permanent magnetic rotor and motors, rotor includes rotor body, rotor body outer surface has the permanent magnet trough of configuration permanent magnet, there are elastic pieces on the bottom edge and/or side of permanent magnet trough, one end of the elastic piece is connected as one with trough rim, and the other end is in trough rim disconnection can free movement state.When installing permanent magnet, permanent magnet is squeezed into permanent magnet trough, squeezes elastic piece, and the free movable end of elastic piece becomes smaller with slot bottom back gauge, and generates elastic deformation, and permanent magnet itself is closely pressed together in permanent magnet trough by the elastic force generated using the elastic deformation of elastic piece.The present invention can easily fixed permanent magnet, remove the use of sheath, reduce the use for even cancelling filler, mitigate the vibration that permanent magnet is subject to, permanent magnet is avoided to demagnetize.
Description
Technical field
The present invention relates to technical field of motors, especially a kind of surface permanent magnetic rotor and motor.
Background technology
Fig. 1 is existing surface permanent magnetic motor partial sectional view, and surface permanent magnetic motor is whole mainly by stator and rotor
It constitutes.Stator is fixed, is made of stator body 2 and winding 3, and stator body 2 is overrided to form by stator lasmination, and winding 3 twines
It is wound on stator body teeth portion.Rotor rotates, and is made of rotor body 1 and permanent magnet 4, and rotor body 1 is by rotor pack
It is overrided to form, permanent magnet 4 is fixed on rotor body outer surface.
Existing surface-type electronics is cased with one layer of sheath 5 in permanent magnet outer layer, and the fillers such as resin, viscose glue are used in combination
Permanent magnet 4 is set to be fixed on rotor body outer surface.But can increase the gas length between stator and rotor using sheath 5, increase
Big motor weight, reduces motor performance；Filler can may also be fallen off because of the influences such as aging, heated, lose viscosity, cause
Permanent magnet 4 loosens, to cause motor to be not normally functioning.
Invention content
The purpose of the present invention is to provide a kind of surface permanent magnetic rotor and motors, to solve to use in the prior art
Sheath can increase the gas length between stator and rotor, increase motor weight, reduce motor performance, and easy using filler
The problem of causing permanent magnet to loosen.
Realize that the technical solution of the object of the invention is：A kind of surface permanent magnetic rotor, including rotor body, rotor sheet
External surface has the permanent magnet trough of configuration permanent magnet, and there are elastic piece, the elasticity on the bottom edge and/or side of permanent magnet trough
One end of piece is connected as one with trough rim, and the other end is in trough rim disconnection can free movement state.
Further, the elastic piece is integrally formed with permanent magnet trough.
Further, the elastic piece is arc-shaped or polygon.
Further, there are more than one projection portions, elastic piece to be arranged in lug boss on the bottom edge of the permanent magnet trough
The one or both sides divided.
Further, the elastic piece individually to arrange or arrange side by side in pairs side by side.
Further, the freely movable extreme direction of each two elastic piece is in the same direction or reversed.
Further, elastic piece is of same size.
Further, elastic piece is of different size.
Further, the groove profile of the permanent magnet trough is dovetail groove or T-slot.
The present invention also provides a kind of magnetoes, including surface permanent magnetic rotor described in any one of the above embodiments.
Compared with prior art, the present invention its remarkable advantage is：(1) present invention can easily fixed permanent magnet, removal
The use of sheath reduces motor weight, reduces the effective air gap length between stator and rotor, improves motor performance；(2) this hair
The bright use that can be reduced or cancel magneto filler when installing permanent magnet is avoided because of filler aging, heated etc.
Factor leads to problems such as to fall off, loses viscosity；(3) elastic piece can absorb partial vibration, mitigate the vibration that permanent magnet is subject to, drop
Low permanent magnet demagnetizes risk because of caused by vibration；(4) elastic piece is integrally formed with rotor body, and it is folded to improve rotor body
The utilization rate of sheet material, it is easy to process, it is at low cost；(5) facilitate installation and fixed permanent magnet, reduce manufacturing cost；Disassemble motor
When, permanent magnet more simply can remove permanent magnet trough under the effect of external force, improve the repetition of permanent magnet and other materials
Utilization rate saves the usage amount of the scarce resources such as rare earth.
Present invention is further described in detail below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is the partial sectional view of existing surface permanent magnetic motor.
Fig. 2 is the elastic piece operating diagram in embodiment of the present invention 1.
Fig. 3 is the sectional view of the surface permanent magnetic motor of embodiment of the present invention 1.
Fig. 4 (a) is elastic piece schematic diagram when not installing permanent magnet, and Fig. 4 (b) is elastic piece schematic diagram after installation permanent magnet.
Fig. 5 is the elastic piece operating diagram in embodiment of the present invention 2.
Fig. 6 is schematic diagram when permanent magnet trough is using T-slot in embodiment of the present invention 3.
Fig. 7 is the schematic diagram that permanent magnet trough bottom edge is provided with projection portion in embodiment of the present invention 4.
Specific implementation mode
Illustrate the preferred embodiment of surface permanent magnetic rotor and motor of the present invention below in conjunction with the accompanying drawings.
Embodiment 1
Fig. 2 is the elastic piece operating diagram in present embodiment, and Fig. 3 is the surface permanent magnetic motor of present embodiment
Sectional view.The surface permanent magnetic rotor of present embodiment includes rotor body, and rotor body outer surface has configuration permanent magnetism
The permanent magnet trough of body 4, permanent magnet trough use oat tail groove structure, and there are more than one bullets of same size on the bottom edge of permanent magnet trough
Property piece 6, the elastic piece 6 and permanent magnet trough be integrally formed, and the bottom edge 7 of one end and permanent magnet trough is connected as one, the other end with
The bottom edge disconnection of permanent magnet trough is in can free movement state.
The elastic piece 6 is arc-shaped, and elastic piece 6, to be individually set up in parallel, each adjacent two elastic piece 6 is freely lived
Moved end direction is reversed.
In punching rotor pack, this section of elastic piece 6,6 one end of elastic piece and slot are reserved on the permanent magnet trough rim of lamination
While being connected as one, the other end is in trough rim disconnection can free movement state.As shown in Fig. 4 (a) and Fig. 4 (b), elastic piece 6 exists
When not being squeezed, 6 free movable end of elastic piece and slot bottom back gauge are larger.When installing permanent magnet 4, permanent magnet 4 is squeezed into forever
In magnet slot, elastic piece 6 is squeezed, 6 free movable end of elastic piece becomes smaller with slot bottom back gauge, and generates elastic deformation, utilizes bullet
Property piece 6 elastic deformation generate elastic force permanent magnet 4 itself is closely pressed together in permanent magnet trough.
The magneto of the present embodiment is the motor using above-mentioned rotor.
Embodiment 2
Fig. 5 is the elastic piece operating diagram of present embodiment.Elastic piece 6 is polygon in present embodiment, it is preferred that
Using trapezium structure, wherein trapezoidal top margin is bonded with 4 bottom of permanent magnet.
Present embodiment other structures are identical as embodiment 1.
Embodiment 3
As shown in fig. 6, permanent magnet trough uses T-slot, other structures identical as embodiment 1 in present embodiment.
Embodiment 4
Fig. 7 is the schematic diagram that permanent magnet trough bottom edge is provided with projection portion in present embodiment, and elastic piece 6 is arranged in protrusion
Partial both sides.
When not being pressed into permanent magnet 4, the height of elastic piece 6 is slightly above projection portion height, after being pressed into permanent magnet 4, elasticity
Piece 6 can compress permanent magnet 4, and there are some gaps for projection portion and permanent magnet 4, and the effect of projection portion is elimination part gas
Gap.
Although the present invention has been disclosed as a preferred embodiment, however, it is not to limit the invention.Skill belonging to the present invention
Has usually intellectual in art field, without departing from the spirit and scope of the present invention, when can be used for a variety of modifications and variations.Cause
This, the scope of protection of the present invention is defined by those of the claims.
Claims (10)
1. a kind of surface permanent magnetic rotor, including rotor body, rotor body outer surface has the permanent magnetism of configuration permanent magnet
Body slot, which is characterized in that there are elastic pieces, one end and the trough rim of the elastic piece to connect on the bottom edge and/or side of permanent magnet trough
It is connected in one, the other end is in trough rim disconnection can free movement state.
2. surface permanent magnetic rotor according to claim 1, which is characterized in that the elastic piece and permanent magnet trough one
It is body formed.
3. surface permanent magnetic rotor according to claim 1, which is characterized in that the elastic piece is arc-shaped or more
Side shape.
4. surface permanent magnetic rotor according to claim 1, which is characterized in that the bottom edge of the permanent magnet trough there are
More than one projection portion, elastic piece are arranged in the one or both sides of projection portion.
5. surface permanent magnetic rotor according to claim 1, which is characterized in that the elastic piece individually to pacify side by side
Row arranges side by side in pairs.
6. surface permanent magnetic rotor according to claim 1, which is characterized in that the freely activity of each two elastic piece
Extreme direction is in the same direction or reversed.
7. surface permanent magnetic rotor according to claim 1, which is characterized in that elastic piece is of same size.
8. surface permanent magnetic rotor according to claim 1, which is characterized in that elastic piece is of different size.
9. surface permanent magnetic rotor according to claim 1, which is characterized in that the groove profile of the permanent magnet trough is swallow
Stern notch or T-slot.
10. a kind of magneto, which is characterized in that turn including the surface permanent magnetic motor described in any one of claim 1-9
Son.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710207765.6A CN108667174A (en) | 2017-03-31 | 2017-03-31 | Surface permanent magnetic rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710207765.6A CN108667174A (en) | 2017-03-31 | 2017-03-31 | Surface permanent magnetic rotor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108667174A true CN108667174A (en) | 2018-10-16 |
Family
ID=63783678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710207765.6A Pending CN108667174A (en) | 2017-03-31 | 2017-03-31 | Surface permanent magnetic rotor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108667174A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111262418A (en) * | 2020-03-10 | 2020-06-09 | 安徽理工大学 | Combined type magnetic coupling ware for coal mine |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000341920A (en) * | 1999-05-26 | 2000-12-08 | Meidensha Corp | Permanent magnet embedded motor |
| DE20201831U1 (en) * | 2002-02-06 | 2002-04-04 | Energy Saving Tech. Corp., Taichung | Magnetic material support structure for the rotor of an electric motor |
| JP2003092846A (en) * | 2001-09-19 | 2003-03-28 | Toyoda Mach Works Ltd | Embedded magnet motor |
| DE102007029719A1 (en) * | 2007-02-01 | 2008-08-07 | Robert Bosch Gmbh | Electric machine |
| CN102790454A (en) * | 2011-05-17 | 2012-11-21 | 三菱电机株式会社 | Magnet embedded type rotation motor and producing method of magnet embedded type rotor |
| JP2013078164A (en) * | 2011-09-29 | 2013-04-25 | Asmo Co Ltd | Rotor |
| CN203984112U (en) * | 2014-07-15 | 2014-12-03 | 湖南金龙电机有限公司 | A kind of internal rotor iron core for rare earth permanent magnet brushless motor |
| CN106100178A (en) * | 2016-06-23 | 2016-11-09 | 浙江帝力驱动设备有限公司 | Capstan rotor magnetic strip installation structure and traction machine |
| CN106130225A (en) * | 2016-08-30 | 2016-11-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor and magnetic steel fixed structure, motor |
-
2017
- 2017-03-31 CN CN201710207765.6A patent/CN108667174A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000341920A (en) * | 1999-05-26 | 2000-12-08 | Meidensha Corp | Permanent magnet embedded motor |
| JP2003092846A (en) * | 2001-09-19 | 2003-03-28 | Toyoda Mach Works Ltd | Embedded magnet motor |
| DE20201831U1 (en) * | 2002-02-06 | 2002-04-04 | Energy Saving Tech. Corp., Taichung | Magnetic material support structure for the rotor of an electric motor |
| DE102007029719A1 (en) * | 2007-02-01 | 2008-08-07 | Robert Bosch Gmbh | Electric machine |
| CN102790454A (en) * | 2011-05-17 | 2012-11-21 | 三菱电机株式会社 | Magnet embedded type rotation motor and producing method of magnet embedded type rotor |
| JP2013078164A (en) * | 2011-09-29 | 2013-04-25 | Asmo Co Ltd | Rotor |
| CN203984112U (en) * | 2014-07-15 | 2014-12-03 | 湖南金龙电机有限公司 | A kind of internal rotor iron core for rare earth permanent magnet brushless motor |
| CN106100178A (en) * | 2016-06-23 | 2016-11-09 | 浙江帝力驱动设备有限公司 | Capstan rotor magnetic strip installation structure and traction machine |
| CN106130225A (en) * | 2016-08-30 | 2016-11-16 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor and magnetic steel fixed structure, motor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111262418A (en) * | 2020-03-10 | 2020-06-09 | 安徽理工大学 | Combined type magnetic coupling ware for coal mine |
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| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181016 |