CN105141060A - Axial flux permanent magnet synchronous motor rotor - Google Patents
Axial flux permanent magnet synchronous motor rotor Download PDFInfo
- Publication number
- CN105141060A CN105141060A CN201510681754.2A CN201510681754A CN105141060A CN 105141060 A CN105141060 A CN 105141060A CN 201510681754 A CN201510681754 A CN 201510681754A CN 105141060 A CN105141060 A CN 105141060A
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- China
- Prior art keywords
- permanent magnet
- ring
- rotor
- field spider
- rotor field
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Abstract
The invention belongs to the technical field of motors, and relates to an axial flux permanent magnet synchronous motor rotor, which comprises a rotor support, permanent magnets, inner permanent magnet retainer rings and outer permanent magnet retainer rings, wherein a certain number of sector-shaped through holes are axially distributed on the rotor support; each hole is embedded with a permanent magnet with the same thickness as the rotor support; annular grooves with the same thickness and the same height as those of the inner permanent magnet retainer rings and the outer permanent magnet retainer rings are arranged in the rotor support and an inner circle and an outer circle of the permanent magnets; the inner permanent magnet retainer rings and the outer permanent magnet retainer rings are arranged in the grooves; the retainer rings are fastened with the rotor support by using countersunk rivets and the permanent magnets are clamped. The axial flux permanent magnet synchronous motor rotor is applicable to promotion and application, and has the advantages that mounting and operation are simple and convenient, the structure is reliable, the surface of the rotor is smooth and flat, windage is small, inter-air space is not occupied, and the motor material utilization rate is high.
Description
Technical field
The invention belongs to technical field of motors, relate to a kind of axial flux permanent magnet synchronous electric motor rotor.
Background technology
The permanent magnet fixing means of current axial flux permanent magnet synchronous electric motor rotor is mostly and directly utilizes glue to be pasted in rotor core by permanent magnet, or utilizes block of metal baffle plate fixed permanent magnet at rotor core two ends.
Adopt glue bonding method fixed permanent magnet technique loaded down with trivial details, and sticking strength cannot ensure, easily there is permanent magnet obscission when high-speed cruising in motor.
Metal baffle fixed permanent magnet mode is adopted to increase motor gas-gap length, cause the waste of material, increase manufacturing cost and the volume of motor, and, air-gap harmonic magnetic field can produce very large harmonic loss in metal baffle, is easy to cause permanent magnet that hot magnet loss phenomenon occurs.
Summary of the invention
Goal of the invention
In order to overcome the problems existed in above-mentioned prior art, the object of the invention is to provide a kind of rotor structure of axial flux permanent magnet synchronous machine, this rotor structure intensity is reliable, and permanent magnet fitting operation is easy, is particularly suitable for manufacturing high rotating speed, high power density motor.
Technical scheme
A kind of axial flux permanent magnet synchronous electric motor rotor, is characterized in that: this rotor is made up of rotor field spider, permanent magnet, interior permanent magnet back-up ring, outer permanent magnet back-up ring, sunk screw; Permanent magnet is embedded in rotor field spider, between the interior permanent magnet back-up ring that permanent magnet is clipped in both sides before and after axial direction and outer permanent magnet back-up ring; Interior permanent magnet back-up ring and outer permanent magnet back-up ring are all fixed on the both sides, front and back of rotor field spider by sunk screw.
Rotor field spider circumferentially direction has the fan-shaped pylone matched with permanent magnet, and permanent magnet embeds in fan-shaped pylone, and the permanent magnet embedded in fan-shaped pylone is identical with rotor field spider thickness.
Permanent magnet circlip groove and outer permanent magnet circlip groove in the annular that before and after rotor field spider, inside and outside round place, both sides has with interior permanent magnet back-up ring and outer permanent magnet back-up ring phase co-altitude and thickness; Interior permanent magnet back-up ring is placed in interior permanent magnet circlip groove, and outer permanent magnet back-up ring is placed in outer permanent magnet circlip groove, interior permanent magnet back-up ring and outer permanent magnet back-up ring by sunk screw and rotor field spider fastening, clamp permanent magnet.
Rotor field spider, interior permanent magnet back-up ring and outer permanent magnet back-up ring all adopt non-magnet material to be made.
Advantage and effect
Beneficial effect of the present invention is as follows:
(1) rotor core smooth surface is smooth, and windage is little, and rotor air frictional dissipation is little.
(2) permanent magnet adopts back-up ring fixed form, and paste without the need to glue, fitting operation is easy.
(3) permanent magnet is embedded in rotor field spider, and intensity is reliable.
(4) adopt the embedded baffle arrangement of inside and outside circle, do not take the inter-air space, motor material utilance is high, and power density is high.
(5) rotor loss is little, and hot magnet loss phenomenon can not occur permanent magnet.
Accompanying drawing explanation
Fig. 1 is rotor structure schematic diagram.
Fig. 2 is Fig. 1 profile.
Fig. 3 is rotor field spider schematic diagram.
Fig. 4 is Fig. 3 cutaway view.
Fig. 5 is permanent magnet schematic diagram.
Fig. 6 is Fig. 5 end view.
Fig. 7 is interior permanent magnet back-up ring schematic diagram.
Fig. 8 is Fig. 7 cutaway view.
Fig. 9 is outer permanent magnet back-up ring schematic diagram.
Figure 10 is Fig. 9 cutaway view.
Description of reference numerals:
1 be rotor field spider, 2 be permanent magnet in figure, 3 be interior permanent magnet back-up ring, 4 be outer permanent magnet back-up ring, 5 be sunk screw, 6 be fan-shaped pylone, 7 be interior permanent magnet circlip groove, 8 be outer permanent magnet circlip groove, 9 be screw, 10 for counterbore.
embodiment:
Below in conjunction with accompanying drawing, the present invention is described further:
As shown in Fig. 1-Figure 10, the present invention proposes a kind of axial flux permanent magnet synchronous electric motor rotor, 9 comprise rotor field spider 1, permanent magnet 2, interior permanent magnet back-up ring 3, outer permanent magnet back-up ring 4 and sunk screw 5; Permanent magnet 2 is embedded in rotor field spider 1, between the interior permanent magnet back-up ring 3 that permanent magnet 2 is clipped in both sides before and after axial direction and outer permanent magnet back-up ring 4; Interior permanent magnet back-up ring 3 and outer permanent magnet back-up ring 4 are all fixed on the both sides, front and back of rotor field spider 1 by sunk screw 5.Permanent magnet adopts back-up ring fixed form, and paste without the need to glue, fitting operation is easy.
As shown in Figure 3 and Figure 4, rotor field spider 1 is uniform some fan-shaped pylones 6 for setting permanent magnet 2 along the circumferential direction, and the quantity of fan-shaped pylone 6 matches with permanent magnet 2, and rotor field spider 1 thickness is identical with permanent magnet 2 thickness.Permanent magnet is embedded in rotor field spider, and intensity is reliable.
Permanent magnet circlip groove 7 in the annular that before and after rotor field spider 1, both sides inner circle has with interior permanent magnet back-up ring 3 phase co-altitude and thickness, interior permanent magnet back-up ring 3 is placed in interior permanent magnet circlip groove 7; Before and after rotor field spider 1, cylindrical place in both sides has the outer permanent magnet circlip groove 8 with outer permanent magnet back-up ring 4 phase co-altitude and thickness, and outer permanent magnet back-up ring 4 is placed in outer permanent magnet circlip groove 8; It is fastening with rotor field spider 1 that interior permanent magnet back-up ring 3 and outer permanent magnet back-up ring 4 pass through sunk screw 5, clamps permanent magnet 2.Adopt the Embedded back-up ring structure of inside and outside circle not take the inter-air space, motor material utilance is high, and power density is high.
As shown in Figure 5 and Figure 6, permanent magnet circlip groove 7 in the inner circle of permanent magnet 2 has and to match with rotor field spider 1 and interior permanent magnet back-up ring 3, the cylindrical place of permanent magnet 2 has the outer permanent magnet circlip groove 8 matched with rotor field spider 1 and outer permanent magnet back-up ring 4.
Rotor field spider 1, interior permanent magnet back-up ring 3, outer permanent magnet back-up ring 4 are non-magnet material and make.
As shown in Fig. 7-Figure 10, interior permanent magnet back-up ring 3 and outer permanent magnet back-up ring 4 circumference have counterbore 10, rotor field spider 1 has screw 9 in the relevant position of interior permanent magnet circlip groove 7 and outer permanent magnet circlip groove 8 simultaneously, utilizes sunk screw interior permanent magnet back-up ring 3 and outer permanent magnet back-up ring 4 to be fixed on stator support 1.
This rotor core of the present invention smooth surface is smooth, and windage is little, and rotor air frictional dissipation is little.
When the present invention uses:
Permanent magnet 2 is embedded in the fan-shaped pylone 6 of rotor field spider 1, interior permanent magnet back-up ring 3 is placed in interior permanent magnet circlip groove 7, outer permanent magnet back-up ring 4 is placed in outer permanent magnet circlip groove 8, utilize sunk screw 5 by interior permanent magnet back-up ring 3 and outer permanent magnet back-up ring 4 fastening with rotor field spider 1, clamp permanent magnet 2.
The course of work of the present invention is as follows:
First sunk screw is utilized to be fixed on rotor field spider 1 permanent magnetism back-up ring 3 in rotor field spider 1 side and outer permanent magnet back-up ring 4.
Then permanent magnet 2 is axially embedded in rotor field spider 1 successively according to putting in order of N-S-N-S.
Finally sunk screw is utilized to be fixed on rotor field spider 1 permanent magnet back-up ring 3 in opposite side and outer permanent magnet back-up ring 4.
Claims (4)
1. an axial flux permanent magnet synchronous electric motor rotor, is characterized in that: this rotor is made up of rotor field spider (1), permanent magnet (2), interior permanent magnet back-up ring (3), outer permanent magnet back-up ring (4), sunk screw (5); Permanent magnet (2) is embedded in rotor field spider (1), between the interior permanent magnet back-up ring (3) that permanent magnet (2) is clipped in both sides before and after axial direction and outer permanent magnet back-up ring (4); Interior permanent magnet back-up ring (3) and outer permanent magnet back-up ring (4) are all fixed on the both sides, front and back of rotor field spider (1) by sunk screw (5).
2. axial flux permanent magnet synchronous electric motor rotor according to claim 1, it is characterized in that: rotor field spider (1) circumferentially direction has the fan-shaped pylone (6) matched with permanent magnet (2), permanent magnet (2) embeds in fan-shaped pylone (6), and the permanent magnet (2) embedded in fan-shaped pylone (6) is identical with rotor field spider (1) thickness.
3. axial flux permanent magnet synchronous electric motor rotor according to claim 1, is characterized in that: permanent magnet circlip groove (7) and outer permanent magnet circlip groove (8) in the annular that inside and outside round place, both sides has with interior permanent magnet back-up ring (3) and outer permanent magnet back-up ring (4) phase co-altitude and thickness before and after rotor field spider (1); Interior permanent magnet back-up ring (3) is placed in interior permanent magnet circlip groove (7), outer permanent magnet back-up ring (4) is placed in outer permanent magnet circlip groove (8), interior permanent magnet back-up ring (3) and outer permanent magnet back-up ring (4) are fastening by sunk screw (5) and rotor field spider (1), clamp permanent magnet (2).
4. axial flux permanent magnet synchronous electric motor rotor according to claim 1, is characterized in that: rotor field spider (1), interior permanent magnet back-up ring (3) and outer permanent magnet back-up ring (4) all adopt non-magnet material to be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510681754.2A CN105141060A (en) | 2015-10-21 | 2015-10-21 | Axial flux permanent magnet synchronous motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510681754.2A CN105141060A (en) | 2015-10-21 | 2015-10-21 | Axial flux permanent magnet synchronous motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105141060A true CN105141060A (en) | 2015-12-09 |
Family
ID=54726314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510681754.2A Pending CN105141060A (en) | 2015-10-21 | 2015-10-21 | Axial flux permanent magnet synchronous motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105141060A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107492962A (en) * | 2017-08-31 | 2017-12-19 | 杭州中豪电动科技股份有限公司 | A kind of magnetic steel fixed structure of disc type electric machine |
| CN107872111A (en) * | 2017-11-10 | 2018-04-03 | 沈阳工业大学 | A kind of high intensity sandwich pole wheel of Double-stator axial magnetic flow magneto |
| WO2023045222A1 (en) * | 2021-09-22 | 2023-03-30 | 浙江吉利控股集团有限公司 | Stator and rotor structure and axial magnetic field electric motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004360499A (en) * | 2003-06-02 | 2004-12-24 | Toyota Industries Corp | Electric compressor |
| CN102593989A (en) * | 2012-03-27 | 2012-07-18 | 中国科学院电工研究所 | Rotor structure for permanent-magnet synchronous direct drive motor |
| CN102904397A (en) * | 2009-09-29 | 2013-01-30 | 深圳华任兴科技有限公司 | Punching clamp for assembling disc-shaped rotor of permanent magnet axial magnetic field motor |
| CN203491808U (en) * | 2013-10-25 | 2014-03-19 | 金坛市微特电机有限公司 | Double stator axial magnetic field permanent magnetic brushless direct current motor rotor |
| CN204334262U (en) * | 2015-01-08 | 2015-05-13 | 张志雄 | A kind of disc type sprocket wheel motor |
| CN205070633U (en) * | 2015-10-21 | 2016-03-02 | 沈阳工业大学 | Axial magnetic flow PMSM rotor |
-
2015
- 2015-10-21 CN CN201510681754.2A patent/CN105141060A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004360499A (en) * | 2003-06-02 | 2004-12-24 | Toyota Industries Corp | Electric compressor |
| CN102904397A (en) * | 2009-09-29 | 2013-01-30 | 深圳华任兴科技有限公司 | Punching clamp for assembling disc-shaped rotor of permanent magnet axial magnetic field motor |
| CN102593989A (en) * | 2012-03-27 | 2012-07-18 | 中国科学院电工研究所 | Rotor structure for permanent-magnet synchronous direct drive motor |
| CN203491808U (en) * | 2013-10-25 | 2014-03-19 | 金坛市微特电机有限公司 | Double stator axial magnetic field permanent magnetic brushless direct current motor rotor |
| CN204334262U (en) * | 2015-01-08 | 2015-05-13 | 张志雄 | A kind of disc type sprocket wheel motor |
| CN205070633U (en) * | 2015-10-21 | 2016-03-02 | 沈阳工业大学 | Axial magnetic flow PMSM rotor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107492962A (en) * | 2017-08-31 | 2017-12-19 | 杭州中豪电动科技股份有限公司 | A kind of magnetic steel fixed structure of disc type electric machine |
| CN107872111A (en) * | 2017-11-10 | 2018-04-03 | 沈阳工业大学 | A kind of high intensity sandwich pole wheel of Double-stator axial magnetic flow magneto |
| CN107872111B (en) * | 2017-11-10 | 2020-06-19 | 沈阳工业大学 | High-strength sandwich magnetic pole rotor of double-stator axial flux permanent magnet motor |
| WO2023045222A1 (en) * | 2021-09-22 | 2023-03-30 | 浙江吉利控股集团有限公司 | Stator and rotor structure and axial magnetic field electric motor |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |
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| RJ01 | Rejection of invention patent application after publication |