CN204030758U - A kind of rotor structure of permagnetic synchronous motor - Google Patents
A kind of rotor structure of permagnetic synchronous motor Download PDFInfo
- Publication number
- CN204030758U CN204030758U CN201420345998.4U CN201420345998U CN204030758U CN 204030758 U CN204030758 U CN 204030758U CN 201420345998 U CN201420345998 U CN 201420345998U CN 204030758 U CN204030758 U CN 204030758U
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- bore
- draw
- groove
- rotor core
- synchronous motor
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a kind of rotor structure of permagnetic synchronous motor, comprise rotor core and some permanent magnets, the outer ledge of rotor core offers some draw-in grooves, permanent magnet is arranged on inside draw-in groove, in each draw-in groove both sides, rotor core is provided with magnet isolation tank, magnet isolation tank is communicated with draw-in groove, outside each draw-in groove, rotor core is provided with some every bore, it is characterized in that: described comprising every bore is positioned at middle first every bore, be positioned at first every bore both sides second every bore and be positioned at second outside bore the 3rd every bore, first every bore, second reduces by identical proportionality coefficient every bore with the 3rd successively every bore, to be arranged on outside draw-in groove some can affect magnetic field every bore and make it distribute according to certain rules, optimize magnetic circuit, make counter potential waveform sineization, improve rotor and electric efficiency, be conducive to the even running of motor, reduce noise.
Description
Technical field
The utility model relates to a kind of rotor structure of permagnetic synchronous motor.
Background technology
The inverter compressor motor developed in the industry is at present internal permanent magnet synchronous motor, and its rotor punching structure all has a great impact motor performance and compressor noise etc.The rotor main of inverter compressor motor will comprise rotor core and some permanent magnets, and be evenly distributed with four draw-in grooves in the outside of axis hole, permanent magnet is arranged on inside draw-in groove.Its counter potential waveform sineization is not enough, and back emf waveform differs comparatively large with sine waveform, have a strong impact on permagnetic synchronous motor performance, make permanent magnet synchronous electric engine efficiency lower, cost increases, and uses the compressor noise of this kind of permagnetic synchronous motor larger.
Utility model content
Main purpose of the present utility model is the permanent-magnetic synchronous motor rotor structure providing a kind of Optimize magnetic circult, to be arranged on outside draw-in groove some can affect magnetic field every bore and make it distribute according to certain rules, optimize magnetic circuit, make counter potential waveform sineization, improve rotor and electric efficiency, be conducive to the even running of motor, reduce noise.
Above-mentioned purpose is achieved by the following technical solution:
A kind of rotor structure of permagnetic synchronous motor, comprise rotor core and some permanent magnets, the outer ledge of rotor core offers some draw-in grooves, permanent magnet is arranged on inside draw-in groove, in each draw-in groove both sides, rotor core is provided with magnet isolation tank, magnet isolation tank is communicated with draw-in groove, outside each draw-in groove, rotor core is provided with some every bore, it is characterized in that: described comprising every bore is positioned at middle first every bore, be positioned at first every bore both sides second every bore and be positioned at second outside bore the 3rd every bore, first every bore, second reduces by identical proportionality coefficient every bore with the 3rd successively every bore.
Above technical scheme is further improved by following measures:
Described above forms circumferential angle A between two magnet isolation tanks of same draw-in groove both sides, and first is divided into six equal portions every bore and the 3rd bisector formed every the center of circle that the center line of bore crosses rotor core circumferential angle A every bore, second.
Proportionality coefficient described above is between 0.6 to 0.8.
The scope of circumferential angle A described above is between 50 ° to 80 °.
Draw-in groove described above and the quantity of permanent magnet are all 5, and draw-in groove circumference is evenly distributed on the outer ledge of rotor core.
Described above second is symmetrically distributed in first every bore both sides every bore and the 3rd every bore.
Some through holes are offered inside draw-in groove described above, on rotor core.
Each technical measures can select a use above, also use capable of being combined, as long as that do not form conflict between levying.
The utility model compared with prior art tool has the following advantages:
1) outside each draw-in groove, rotor core is provided with some every bore, described every bore comprise be positioned at middle first every bore, be positioned at first every bore both sides second every bore and be positioned at second outside bore the 3rd every bore, first reduces by identical proportionality coefficient every bore with the 3rd every bore successively every bore, second, can affect magnetic field every bore makes it distribute according to certain rules, optimize magnetic circuit, make counter potential waveform sineization, improve rotor and electric efficiency, be conducive to the even running of motor, reduce noise;
2) between two magnet isolation tanks of same draw-in groove both sides, circumferential angle A is formed, first is divided into six equal portions every bore and the 3rd bisector formed every the center of circle that the center line of bore crosses rotor core circumferential angle A every bore, second, can affect magnetic field makes it distribute according to certain rules, optimizes magnetic circuit;
3) proportionality coefficient is between 0.6 to 0.8, and the scope of circumferential angle A is between 50 ° to 80 °, learns through repeatedly test data, and the magnetic circuit of the p-m rotor of this structure is optimum, counter potential waveform sineization;
4) inside draw-in groove, rotor core offers some through holes, through hole has certain thermolysis, has the heat done on rotor core to leave.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, a kind of rotor structure of permagnetic synchronous motor, comprise rotor core 1 and some permanent magnets 2, the outer ledge of rotor core 1 offers some draw-in grooves 11, permanent magnet 2 is arranged on inside draw-in groove 11, in each draw-in groove 11 both sides, rotor core 1 is provided with magnet isolation tank 12, magnet isolation tank 12 is communicated with draw-in groove 11, outside each draw-in groove 11, rotor core 1 is provided with some every bore 13, comprise every bore 13 and be positioned at middle first every bore 131, be positioned at first every bore 131 both sides second every bore 132 and be positioned at second outside bore 132 the 3rd every bore 133, first every bore 131, second reduces by identical proportionality coefficient every bore 133 with the 3rd successively every bore 132, can affect magnetic field every bore 13 makes it distribute according to certain rules, optimize magnetic circuit, make counter potential waveform sineization, improve rotor and electric efficiency, be conducive to the even running of motor, reduce noise.Circumferential angle A is formed between two magnet isolation tanks 12 of same draw-in groove 11 both sides, the first bisector L formed every the center of circle O that bore 132 and the 3rd crosses rotor core every the center line of bore 133 every bore 131, second is divided into six equal portions circumferential angle A, can affect magnetic field makes it distribute according to certain rules, optimizes magnetic circuit.Proportionality coefficient is between 0.6 to 0.8.The scope of circumferential angle A is between 50 ° to 80 °.Preferred proportionality coefficient is 0.7, and circumferential angle A is 65 °.The quantity of draw-in groove 11 and permanent magnet 2 is all 5, and draw-in groove 11 circumference is evenly distributed on the outer ledge of rotor core 1.Second is symmetrically distributed in first every bore 131 both sides every bore 132 and the 3rd every bore 133, and the magnetic circuit outside same draw-in groove 11 is uniformly distributed.Inside draw-in groove 11, on rotor core 1, offer some through holes 14, the quantity of through hole 14 is 3, and through hole 14 can take away the heat that rotor core 1 produces in running.
Above-described is only execution modes more of the present utility model.For the person of ordinary skill of the art, under the prerequisite not departing from the utility model creation design, can also make some distortion and improvement, these all belong to protection range of the present utility model.
Claims (7)
1. the rotor structure of a permagnetic synchronous motor, comprise rotor core (1) and some permanent magnets (2), the outer ledge of rotor core (1) offers some draw-in grooves (11), permanent magnet (2) is arranged on draw-in groove (11) the inside, in each draw-in groove (11) both sides, rotor core (1) is provided with magnet isolation tank (12), magnet isolation tank (12) is communicated with draw-in groove (11), in each draw-in groove (11) outside, rotor core (1) is provided with some every bore (13), it is characterized in that: described comprising every bore (13) is positioned at middle first every bore (131), be positioned at first every bore (131) both sides second every bore (132) and be positioned at second every bore (132) outside the 3rd every bore (133), first every bore (131), second reduces by identical proportionality coefficient every bore (133) with the 3rd successively every bore (132).
2. the rotor structure of a kind of permagnetic synchronous motor according to claim 1, it is characterized in that: form circumferential angle A between two magnet isolation tanks (12) being positioned at same draw-in groove (11) both sides, first is divided into six equal portions every bore (132) and the 3rd bisector (L) formed every the center of circle (O) that the center line of bore (133) crosses rotor core circumferential angle A every bore (131), second.
3. the rotor structure of a kind of permagnetic synchronous motor according to claim 1 and 2, is characterized in that: described proportionality coefficient is between 0.6 to 0.8.
4. the rotor structure of a kind of permagnetic synchronous motor according to claim 3, is characterized in that: the scope of circumferential angle A is between 50 ° to 80 °.
5. the rotor structure of a kind of permagnetic synchronous motor according to claim 4, it is characterized in that: the quantity of draw-in groove (11) and permanent magnet (2) is all 5, and draw-in groove (11) circumference is evenly distributed on the outer ledge of rotor core (1).
6. the rotor structure of a kind of permagnetic synchronous motor according to claim 1 and 2, is characterized in that: second is symmetrically distributed in first every bore (131) both sides every bore (132) and the 3rd every bore (133).
7. the rotor structure of a kind of permagnetic synchronous motor according to claim 1 and 2, is characterized in that: on draw-in groove (11) inner side, rotor core (1), offer some through holes (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345998.4U CN204030758U (en) | 2014-06-26 | 2014-06-26 | A kind of rotor structure of permagnetic synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420345998.4U CN204030758U (en) | 2014-06-26 | 2014-06-26 | A kind of rotor structure of permagnetic synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204030758U true CN204030758U (en) | 2014-12-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420345998.4U Expired - Fee Related CN204030758U (en) | 2014-06-26 | 2014-06-26 | A kind of rotor structure of permagnetic synchronous motor |
Country Status (1)
| Country | Link |
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| CN (1) | CN204030758U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105391212A (en) * | 2015-12-18 | 2016-03-09 | 珠海凌达压缩机有限公司 | Rotor and the inverter compressor |
| CN106357029A (en) * | 2016-10-18 | 2017-01-25 | 珠海凌达压缩机有限公司 | Motor rotor magnetic field sine method, rotor structure, motor and compressor |
| CN106411001A (en) * | 2015-07-31 | 2017-02-15 | 启东黑马汽车科技有限公司 | Water-cooled permanent magnetic resistance synchronous motor rotor structure for pure electric vehicles |
| CN107359715A (en) * | 2017-07-03 | 2017-11-17 | 广东威灵电机制造有限公司 | Rotor punching, rotor and magneto |
| CN108599427A (en) * | 2018-04-20 | 2018-09-28 | 宁波大叶园林设备股份有限公司 | A kind of brushless motor using 12 slot, ten extremely low cogging torque structure |
| CN110620456A (en) * | 2018-06-20 | 2019-12-27 | 广东美芝制冷设备有限公司 | Rotor core, permanent-magnet machine and compressor |
| CN113054775A (en) * | 2019-12-27 | 2021-06-29 | 威刚科技股份有限公司 | Inner rotor and motor |
-
2014
- 2014-06-26 CN CN201420345998.4U patent/CN204030758U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411001A (en) * | 2015-07-31 | 2017-02-15 | 启东黑马汽车科技有限公司 | Water-cooled permanent magnetic resistance synchronous motor rotor structure for pure electric vehicles |
| CN105391212A (en) * | 2015-12-18 | 2016-03-09 | 珠海凌达压缩机有限公司 | Rotor and the inverter compressor |
| CN106357029A (en) * | 2016-10-18 | 2017-01-25 | 珠海凌达压缩机有限公司 | Motor rotor magnetic field sine method, rotor structure, motor and compressor |
| CN106357029B (en) * | 2016-10-18 | 2019-07-12 | 珠海格力电器股份有限公司 | Method, rotor structure, motor and the compressor of rotor magnetic field sine |
| CN107359715A (en) * | 2017-07-03 | 2017-11-17 | 广东威灵电机制造有限公司 | Rotor punching, rotor and magneto |
| CN108599427A (en) * | 2018-04-20 | 2018-09-28 | 宁波大叶园林设备股份有限公司 | A kind of brushless motor using 12 slot, ten extremely low cogging torque structure |
| CN110620456A (en) * | 2018-06-20 | 2019-12-27 | 广东美芝制冷设备有限公司 | Rotor core, permanent-magnet machine and compressor |
| CN113054775A (en) * | 2019-12-27 | 2021-06-29 | 威刚科技股份有限公司 | Inner rotor and motor |
| CN113054775B (en) * | 2019-12-27 | 2023-01-03 | 威刚科技股份有限公司 | Inner rotor and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20150626 |
|
| EXPY | Termination of patent right or utility model |