CN203707911U - Surface plug-in type high speed permanent magnet motor rotor - Google Patents
Surface plug-in type high speed permanent magnet motor rotor Download PDFInfo
- Publication number
- CN203707911U CN203707911U CN201420068829.0U CN201420068829U CN203707911U CN 203707911 U CN203707911 U CN 203707911U CN 201420068829 U CN201420068829 U CN 201420068829U CN 203707911 U CN203707911 U CN 203707911U
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- rotor
- magnet motor
- speed permanent
- plug
- 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.)
- Expired - Lifetime
Links
- 239000004568 cement Substances 0.000 claims description 4
- 239000002966 varnish Substances 0.000 claims description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 5
- 239000000463 material Substances 0.000 description 6
- 229920000049 Carbon (fiber) Polymers 0.000 description 3
- 239000004917 carbon fiber Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- 229910000851 Alloy steel Inorganic materials 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000005267 amalgamation Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model relates to a surface plug-in type high speed permanent magnet motor rotor. The rotor comprises a rotor iron core. The interelectrode part of the rotor iron core is provided with two or more grooves. Since the grooves are disposed in the interelectrode part of the rotor iron core, the interelectrode part of the rotor iron core is divided into a plurality of small areas, paths of eddy current loops in the iron core are reduced, and then eddy current loss is reduced.
Description
Technical field
The utility model relates to technical field of motors, relates in particular to a kind of surperficial plug-in type rotor of high-speed permanent magnet motor.
Background technology
High speed permanent motor has that power density is large, stock utilization is high, efficiency advantages of higher, has good application prospect.The rotor magnetic circuit structural of high speed permanent motor has surperficial plug-in type, and surperficial plug-in type high speed permanent motor rotating speed is high, and more than peripheral speed can reach 220m/s, the reluctance torque of the asymmetric generation of its magnetic circuit can improve the power density of motor.
Surface plug-in type high speed permanent magnet motor rotor generally comprises high strength sheath, permanent magnet, rotor core, end baffle and rotating shaft, permanent magnet is arranged in rotor core, high strength sheath is arranged on the cylindrical of permanent magnet, high strength sheath is generally manufactured by not magnetic conduction high-strength alloy Steel material or carbon fibre material, for the protection of permanent magnet and bear the centrifugal force producing under permanent magnet High Rotation Speed; Rotor core both ends of the surface are provided with end baffle, use non-magnet_conductible material manufacture, and permanent magnet and high strength sheath are carried out to axial limiting; Rotor core and end baffle and rotating shaft all adopt interference fit, and rotor core generally adopts solid construction.
Surface plug-in type high speed permanent motor air-gap field contains certain high order harmonic component, and in the time that sheath material is high strength alloy steel, high order harmonic component can produce a large amount of eddy current loss in sheath; When sheath material is carbon fiber, although eddy current loss is very little in sheath, but high order harmonic component can penetrate sheath, rotor core part between permanent magnet inside and permanent magnet pole forms eddy current loop, produce eddy current loss, make temperature of rotor too high, may cause rotor permanent magnet to produce irreversible loss of excitation or rotor scaling loss, the dependability of rotor is poor.
Utility model content
The purpose of this utility model is to overcome above defect, provides a kind of eddy current loss little, and temperature rise is low, the surperficial plug-in type rotor of high-speed permanent magnet motor of good reliability.
For achieving the above object, the utility model is taked following design: a kind of surperficial plug-in type rotor of high-speed permanent magnet motor, and it comprises rotor core, the interpolar part of described rotor core is provided with two or more grooves.
Described groove is for along the circumferential direction arranging.
Described groove is for radially arranging.
Described groove is for along the circumferential direction all arranging with radial direction.
Also comprise permanent magnet, described permanent magnet is made up of two or more than two permanent magnet unit, between permanent magnet unit and permanent magnet unit, is provided with insulating cement.
Described permanent magnet is made up of two or more than two permanent magnet unit, between permanent magnet unit and permanent magnet unit, is provided with insulating varnish.
Also comprise end baffle, the outside of described end plate is provided with radially equally distributed radiating ribs.
Effect of the present utility model is: because the interpolar part at rotor core is provided with groove, make rotor core interpolar part be divided into multiple zonules, reduced the path in core interior eddy current loop, reduced eddy current loss.Because every utmost point permanent magnet is made up of permanent magnet unit, and amalgamation face between permanent magnet unit is because scribbling insulating cement or insulating varnish, has reduced the path in permanent magnet internal vortex loop, has reduced the eddy current loss of permanent magnet inside.Owing to being provided with radially equally distributed radiating ribs in end baffle outside, thereby the area of dissipation of rotor, rotor good cooling results are increased.With respect to common surperficial plug-in type high speed permanent magnet motor rotor, loss of the present utility model is little, and temperature rise is low, and reliability is high.
Accompanying drawing explanation
Fig. 1 is structure chart of the present utility model;
Fig. 2 is radial cross-section of the present utility model;
Fig. 3 is the partial enlarged drawing at the I place of Fig. 2.
Embodiment
Below with reference to accompanying drawing, the utility model is described further.
A kind of surperficial plug-in type rotor of high-speed permanent magnet motor, it comprises high strength sheath 1, permanent magnet 2, rotor core 3, end baffle 4 and rotating shaft 6.Be provided with end baffle 4 at rotor core 3 two ends, described end baffle 4 is manufactured by non-magnet_conductible material, and described end baffle 4 and rotor core 3 adopt hot jacket mode to be assemblied in rotating shaft 6, and end baffle 4 and rotor core 3 all adopt interference fit with rotating shaft 6.The lateral surface of end baffle 4 processes many along the circumferential direction uniform radiating ribs 5, and the interpolar part of rotor core 3 processes multiple narrow and dark axial notches 7, makes rotor core 3 interpolar parts be divided into multiple zonules.Described permanent magnet 2 is installed in rotor core 3, axial and the radial direction of every utmost point permanent magnet 2 is combined into by fritter permanent magnet 2-1, the magnetizing direction of the fritter permanent magnet 2-1 of every utmost point is consistent, when installation, fritter permanent magnet 2-1 all coats insulating cement or insulating varnish except periphery, install after permanent magnet 2, rotor outer circle carries out colligation with carbon fiber, after carbon fiber solidifies, forms high strength sheath 1.
The effect of present embodiment is: the eddy current loss loop of permanent magnet 2 and rotor core 3 greatly reduces, and rotor eddy current loss is little; Radiating ribs 5 on rotor tip baffle plate 4 has increased rotor surface area of dissipation, rotor good cooling results, and therefore, rotor temperature rise is low, and reliability is high.
Be more than a kind of execution mode of the present utility model, a preferred demonstration example.The scope of the utility model application request protection has more than and is limited to described execution mode.The technical scheme of all and the present embodiment equivalence, as rotor core radial direction arranges groove 7, rotor core axially and radially all arranges groove 7, and it all belongs to protection range of the present utility model.
Claims (8)
1. a surperficial plug-in type rotor of high-speed permanent magnet motor, it comprises rotor core, it is characterized in that, the interpolar part of described rotor core is provided with two or more grooves.
2. the surperficial plug-in type rotor of high-speed permanent magnet motor of one according to claim 1, is characterized in that, described groove is for along the circumferential direction arranging.
3. the surperficial plug-in type rotor of high-speed permanent magnet motor of one according to claim 1, is characterized in that, described groove is for radially arranging.
4. the surperficial plug-in type rotor of high-speed permanent magnet motor of one according to claim 1, is characterized in that, described groove is for along the circumferential direction all arranging with radial direction.
5. according to claim 1 or claim 2 or claim 3 or the surperficial plug-in type rotor of high-speed permanent magnet motor of one claimed in claim 4, it is characterized in that, also comprise permanent magnet, described permanent magnet is made up of two or more than two permanent magnet unit, between permanent magnet unit and permanent magnet unit, is provided with insulating cement.
6. the surperficial plug-in type rotor of high-speed permanent magnet motor of one according to claim 5, is characterized in that, described permanent magnet is made up of two or more than two permanent magnet unit, between permanent magnet unit and permanent magnet unit, is provided with insulating varnish.
7. the surperficial plug-in type rotor of high-speed permanent magnet motor of one according to claim 5, is characterized in that, also comprises end baffle, and the outside of described end plate is provided with radially equally distributed radiating ribs.
8. the surperficial plug-in type rotor of high-speed permanent magnet motor of one according to claim 6, is characterized in that, also comprises end baffle, and the outside of described end plate is provided with radially equally distributed radiating ribs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420068829.0U CN203707911U (en) | 2014-02-18 | 2014-02-18 | Surface plug-in type high speed permanent magnet motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420068829.0U CN203707911U (en) | 2014-02-18 | 2014-02-18 | Surface plug-in type high speed permanent magnet motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203707911U true CN203707911U (en) | 2014-07-09 |
Family
ID=51058291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420068829.0U Expired - Lifetime CN203707911U (en) | 2014-02-18 | 2014-02-18 | Surface plug-in type high speed permanent magnet motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203707911U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978193A (en) * | 2016-06-20 | 2016-09-28 | 深圳市爱贝科精密机械有限公司 | Rotor module used for roll ball high-speed motorized spindle |
| CN109962546A (en) * | 2017-12-26 | 2019-07-02 | 丰田自动车株式会社 | Rotor |
-
2014
- 2014-02-18 CN CN201420068829.0U patent/CN203707911U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105978193A (en) * | 2016-06-20 | 2016-09-28 | 深圳市爱贝科精密机械有限公司 | Rotor module used for roll ball high-speed motorized spindle |
| CN109962546A (en) * | 2017-12-26 | 2019-07-02 | 丰田自动车株式会社 | Rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140709 |