CN204633561U - A kind of rotor structure of automatic start type permanent magnet synchronous motor - Google Patents
A kind of rotor structure of automatic start type permanent magnet synchronous motor Download PDFInfo
- Publication number
- CN204633561U CN204633561U CN201520235955.5U CN201520235955U CN204633561U CN 204633561 U CN204633561 U CN 204633561U CN 201520235955 U CN201520235955 U CN 201520235955U CN 204633561 U CN204633561 U CN 204633561U
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- Prior art keywords
- rotor
- magnet steel
- automatic start
- start type
- synchronous motor
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 52
- 239000010959 steel Substances 0.000 claims abstract description 52
- 238000004804 winding Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
A kind of rotor structure of automatic start type permanent magnet synchronous motor, belong to automatic start type magneto technical field, comprise rotor, be arranged on the rotating shaft of rotor center, the magnet steel be made up of multipair magnetic pole at internal rotor, be arranged between magnet steel and magnet steel every magnetic bridge and the starting cage bar being arranged on rotor outer surface; Each pole magnet steel of internal rotor all extends to the outer surface close to rotor, and other starting cage bars of rotor outer surface are all symmetrically distributed in the top of each pole magnet steel and form cage-shaped structure at rotor outer surface.The structure of the utility model to motor interior rotor is optimized improvement, what improve magnet steel utilizes space, eliminate the cage bar of rotor magnetic steel extended spot, decrease the use material that rotor outer surface starts winding, improve magnet steel and the design every magnetic bridge, further improve the electromagnetic performance of motor, particularly applicable in middle low power self-starting occasion.
Description
Technical field
The invention belongs to automatic start type magneto technical field, particularly a kind of rotor structure of automatic start type permanent magnet synchronous motor.
Background technology
Self-starting permasyn motor is a kind of permanent magnet synchronous motor with self start ability be most widely used at present, along with the fast development of computer technology, motor manufacturing technology etc., especially the extensive use of high performance permanent magnetic materials, because its rotor is without copper loss, loss is little, and armature exciting curent reduces to be even zero greatly, and efficiency is high, in small-power to middle power occasion, alternative Cage Rotor Asynchronous Motor.
Although self-starting permasyn motor has a lot of advantage compared with induction machine, as high efficiency, High Power Factor and can the advantage such as self-starting; But because its permanent magnet is built-in on rotor, and rotor also has started squirrel-cage, make the epitrochanterian useful space less, layout comparison bothers, and the magnetic steel structure for more complicated is all the more so.Exist while magnet steel and cage bar and not only make to suppress leakage field more difficult, also limit the consumption of magnet steel, this greatly have impact on the Electromagnetic Design of motor simultaneously, and the performance of motor cannot be further improved.
Summary of the invention
The object of the invention is the rotor design in order to improve automatic start type permagnetic synchronous motor, improving magnet steel and utilizing space, adopting new starting winding construction, reducing the use material starting winding, propose a kind of rotor structure of automatic start type permanent magnet synchronous motor.
Technical scheme of the present invention is: a kind of rotor structure of automatic start type permanent magnet synchronous motor, comprise rotor, be arranged on the rotating shaft of rotor center, at the magnet steel that internal rotor is made up of multipair magnetic pole, be arranged between magnet steel and magnet steel every magnetic bridge and the starting cage bar being arranged on rotor outer surface; It is characterized in that: each pole magnet steel of described internal rotor all extends to the outer surface close to rotor, described starting cage bar is all symmetrically distributed in the top of each pole magnet steel described and forms cage-shaped structure at rotor outer surface.
The mode of burying in described magnet steel passes through is embedded in the inside of rotor, and each pole magnet steel is all in " V " font structure.
The number of magnetic poles of described magnet steel is 4 poles.
The distance of each pole magnet steel described and rotor outer surface is 1 ~ 5mm.
The described elongated end place being arranged on each pole magnet steel described every magnetic bridge.
Beneficial effect of the present invention is: the rotor structure of a kind of automatic start type permanent magnet synchronous motor provided by the invention, improvement is optimized to the structure of motor interior rotor, what improve magnet steel utilizes space, eliminate the cage bar of rotor magnetic steel extended spot, decrease the use material that rotor outer surface starts winding, improve magnet steel and the design every magnetic bridge, further improve the electromagnetic performance of motor, particularly applicable in middle low power self-starting occasion.
Accompanying drawing explanation
Fig. 1 is the cross section structure schematic diagram of rotor structure of the present invention.
In figure: start cage bar 1, magnet steel 2, every magnetic bridge 3, rotating shaft 4.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described:
As shown in Figure 1, a rotor structure for automatic start type permanent magnet synchronous motor, comprises rotor, is arranged on the rotating shaft 4 of rotor center, at the magnet steel 2 that internal rotor is made up of multipair magnetic pole, be arranged between magnet steel 2 and magnet steel 2 every magnetic bridge 3 and the starting cage bar 1 being arranged on rotor outer surface; Each pole magnet steel 2 of internal rotor all extends to the outer surface close to rotor, starts cage bar 1 and is all symmetrically distributed in the top of each pole magnet steel 2 and forms cage-shaped structure at rotor outer surface.
As shown in Figure 1, a kind of rotor structure of automatic start type permanent magnet synchronous motor, design is optimized to the structure of motor interior rotor, the mode of burying in magnet steel 2 passes through is embedded in the inside of rotor, all in " V " font structure (" U " font is identical with " V " font in the present invention with " W " font operation principle), in the present invention, the number of magnetic poles of magnet steel 2 is 4 poles to each pole magnet steel 2; Each pole magnet steel 2 all directly extends to the outer surface close to rotor, and each pole magnet steel 2 is 1 ~ 5mm with the distance of rotor outer surface; Do not arrange at the elongated end place of magnet steel 2 and start cage bar 1, other parts of rotor outer surface are still arranged starts cage bar 1, is arranged on the elongated end place of each pole magnet steel 2 described every magnetic bridge 3; Owing to eliminating the starting cage bar 1 of magnet steel 2 extended spot, so the length of magnet steel 2 can significantly increase, what improve magnet steel utilizes space, improve magnet steel and the design every magnetic bridge, decrease the use material that rotor outer surface starts winding simultaneously, thus further improve the electromagnetic performance of motor.
Claims (5)
1. the rotor structure of an automatic start type permanent magnet synchronous motor, comprise rotor, be arranged on the rotating shaft (4) of rotor center, at the magnet steel (2) that internal rotor is made up of multipair magnetic pole, be arranged between magnet steel (2) and magnet steel (2) every magnetic bridge (3) and the starting cage bar (1) being arranged on rotor outer surface; It is characterized in that: each pole magnet steel (2) of described internal rotor all extends to the outer surface of rotor, described starting cage bar (1) is all symmetrically distributed in the top of each pole magnet steel (2) described and forms cage-shaped structure at rotor outer surface.
2. the rotor structure of a kind of automatic start type permanent magnet synchronous motor according to claim 1, it is characterized in that: the mode of burying in described magnet steel (2) passes through is embedded in the inside of rotor, each pole magnet steel (2) is all in " V " font structure.
3. the rotor structure of a kind of automatic start type permanent magnet synchronous motor according to claim 1, is characterized in that: the number of magnetic poles of described magnet steel (2) is 4 poles.
4. the rotor structure of a kind of automatic start type permanent magnet synchronous motor according to claim 1, is characterized in that: each pole magnet steel (2) described is 1 ~ 5mm with the distance of rotor outer surface.
5. the rotor structure of a kind of automatic start type permanent magnet synchronous motor according to claim 1, is characterized in that: the described elongated end place being arranged on each pole magnet steel (2) described every magnetic bridge (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520235955.5U CN204633561U (en) | 2015-04-20 | 2015-04-20 | A kind of rotor structure of automatic start type permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520235955.5U CN204633561U (en) | 2015-04-20 | 2015-04-20 | A kind of rotor structure of automatic start type permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204633561U true CN204633561U (en) | 2015-09-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520235955.5U Expired - Fee Related CN204633561U (en) | 2015-04-20 | 2015-04-20 | A kind of rotor structure of automatic start type permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204633561U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871094A (en) * | 2016-05-23 | 2016-08-17 | 中国核动力研究设计院 | Small high-speed motor rotor for driving compressor |
-
2015
- 2015-04-20 CN CN201520235955.5U patent/CN204633561U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105871094A (en) * | 2016-05-23 | 2016-08-17 | 中国核动力研究设计院 | Small high-speed motor rotor for driving compressor |
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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: 20150909 |
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| CF01 | Termination of patent right due to non-payment of annual fee |