CN201584831U - Two-pole permanent magnet synchronous motor rotor - Google Patents
Two-pole permanent magnet synchronous motor rotor Download PDFInfo
- Publication number
- CN201584831U CN201584831U CN2009202008746U CN200920200874U CN201584831U CN 201584831 U CN201584831 U CN 201584831U CN 2009202008746 U CN2009202008746 U CN 2009202008746U CN 200920200874 U CN200920200874 U CN 200920200874U CN 201584831 U CN201584831 U CN 201584831U
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- China
- Prior art keywords
- iron core
- synchronous motor
- permanent magnet
- motor rotor
- core
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- 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
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- Permanent Magnet Type Synchronous Machine (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A two-pole permanent magnet synchronous motor rotor is simple in structure, low in rotor flux leakage rate and simple in manufacturing technique, can reduce exciting current of a motor rotor and increase motor power factor and efficiency, and is provided with an iron core (2), a permanent magnet (1) is arranged at a shaft core of the iron core, and two sides of the shaft core direction of the iron core are respectively fixed with a half shaft (3). The two-pole permanent magnet synchronous motor rotor is suitable for being used as permanent magnet synchronous motor rotors.
Description
Technical field
The utility model relates to synchronous machine, comprises varying frequency starting two pole permanent-magnet synchronous machines and asynchronous starting (asynchronous starting) the two poles of the earth permanent magnet synchronous motor, the particularly rotor of two pole permanent-magnet synchronous machines.
Technical background
Permagnetic synchronous motor has replaced the excitation winding in the synchronous electric motor rotor with permanent magnet, save magnet exciting coil, brush and slip ring, thereby in its rotor, do not consumed exciting power, so, compare with the motor of other types, permagnetic synchronous motor has efficient height, advantage of simple structure.In addition, permagnetic synchronous motor has also that air-gap induction height, power density are big, torque current compares advantages of higher.In recent years, along with the development of power electronic device, microprocessor technology and control technology, permagnetic synchronous motor has been widely used in the AC servo field.
Two pole permanent-magnet synchronous machines in the past roughly have two classes: 1. permanent magnet places the iron core outside, and it is simple in structure, but is not suitable for asynchronous starting (as Fig. 1); 2. permanent magnet places core interior, but asynchronous starting, but magnetic structure is unreasonable, complicated in mechanical structure (as Fig. 2).Their common ground is that motor shaft passes rotor core, and magnetic structure is complicated, and the rotor leakage rate is higher, and the motor stator exciting curent is increased, and electric efficiency reduces.
Summary of the invention
The utility model will solve permanent-magnetic synchronous motor rotor magnetic structure complexity in the prior art, leakage field rate height, the problem that motor power factor and efficient are reduced, a kind of the two poles of the earth of the present utility model permanent-magnetic synchronous motor rotor is provided for this reason, this p-m rotor magnetic structure is simple, the leakage field rate is low, can improve motor power factor and efficient.
For addressing the above problem, the technical solution adopted in the utility model is to be provided with iron core, and its special character is to be provided with permanent magnet at the axle core place of described iron core, and described iron core shaft core direction both sides are fixed with semiaxis respectively.
Described permanent magnet be suitable in the iron core to iron core radially two ends and axially two ends extend into tabular.
Can circumferentially offer the groove or the hole of extending on the described iron core side face in uniform way, be provided with sliver in groove or the hole, be fit to asynchronous starting to shaft core direction.
Described semiaxis can insert core interior one distance ground and be fixed in iron core shaft core direction both sides, also can be fixed in iron core shaft core direction both sides in non-insertion ground.
Iron core in the utility model can be distributed in permanent magnet both sides or all around.
The utility model is because permanent magnet is arranged at iron mandrel core place, motor shaft does not pass iron core, and be fixed in iron core shaft core direction both sides with two semiaxis, so magnetic structure and mechanical structure are simple, the rotor leakage rate is low, manufacturing process is easy, and the motor stator exciting curent is reduced, and improves motor power factor and efficient.
Description of drawings
Fig. 1 is known varying frequency starting the two poles of the earth permanent-magnetic synchronous motor rotor structural representations;
Fig. 2 is known asynchronous starting the two poles of the earth permanent-magnetic synchronous motor rotor structural representations;
Fig. 3 is the utility model varying frequency starting the two poles of the earth permanent-magnetic synchronous motor rotor structural representations;
Fig. 4 is Fig. 3 A-A cutaway view;
Fig. 5 is the utility model asynchronous starting the two poles of the earth permanent-magnetic synchronous motor rotor structural representations;
Fig. 6 is Fig. 5 A-A cutaway view.
Embodiment
Embodiment one
The two poles of the earth permanent-magnetic synchronous motor rotor has iron core 2, is provided with permanent magnet 1 at the axle core place of iron core, and described iron core shaft core direction both sides are fixed with semiaxis 3 respectively, and permanent magnet 1 radially extends into tabular with axial two ends in two ends to iron core in iron core.
Embodiment two
This routine rotor circumferentially offers the groove or the hole of extending to shaft core direction in uniform way on iron core 2 side faces, be provided with sliver 4 in groove or the hole.Other structure is identical with last example.
Claims (4)
1. the two poles of the earth permanent-magnetic synchronous motor rotor has iron core (2), it is characterized in that being provided with permanent magnet (1) at the axle core place of described iron core, and described iron core shaft core direction both sides are fixed with semiaxis (3) respectively.
2. the two poles of the earth as claimed in claim 1 permanent-magnetic synchronous motor rotor is characterized in that described permanent magnet (1) radially extends into tabular with axial two ends in two ends to iron core in iron core.
3. the two poles of the earth as claimed in claim 1 or 2 permanent-magnetic synchronous motor rotor is characterized in that circumferentially offering the groove or the hole of extending to shaft core direction on the described iron core side face in uniform way, is provided with sliver (4) in groove or the hole.
4. the two poles of the earth as claimed in claim 1 or 2 permanent-magnetic synchronous motor rotor is characterized in that described semiaxis (3) inserts core interior one distance ground and is fixed in iron core shaft core direction both sides, and perhaps non-insertion ground is fixed in iron core shaft core direction both sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202008746U CN201584831U (en) | 2009-11-26 | 2009-11-26 | Two-pole permanent magnet synchronous motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202008746U CN201584831U (en) | 2009-11-26 | 2009-11-26 | Two-pole permanent magnet synchronous motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201584831U true CN201584831U (en) | 2010-09-15 |
Family
ID=42726845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202008746U Expired - Lifetime CN201584831U (en) | 2009-11-26 | 2009-11-26 | Two-pole permanent magnet synchronous motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201584831U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078430A (en) * | 2012-12-31 | 2013-05-01 | 南京磁谷科技有限公司 | Permanent magnet motor with circular and uniform distribution of rotor permanent magnets |
| CN106911205A (en) * | 2017-03-08 | 2017-06-30 | 沈阳远大科技电工有限公司 | Spliced rotor permanent magnet synchronous motor |
| CN112671133A (en) * | 2020-12-17 | 2021-04-16 | 珠海格力电器股份有限公司 | Rotor structure and motor |
| US11823561B2 (en) | 2016-06-03 | 2023-11-21 | Lutron Technology Company Llc | Battery-powered retrofit remote control device |
-
2009
- 2009-11-26 CN CN2009202008746U patent/CN201584831U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103078430A (en) * | 2012-12-31 | 2013-05-01 | 南京磁谷科技有限公司 | Permanent magnet motor with circular and uniform distribution of rotor permanent magnets |
| US11823561B2 (en) | 2016-06-03 | 2023-11-21 | Lutron Technology Company Llc | Battery-powered retrofit remote control device |
| US12131628B2 (en) | 2016-06-03 | 2024-10-29 | Lutron Technology Company Llc | Battery-powered retrofit remote control device |
| CN106911205A (en) * | 2017-03-08 | 2017-06-30 | 沈阳远大科技电工有限公司 | Spliced rotor permanent magnet synchronous motor |
| CN112671133A (en) * | 2020-12-17 | 2021-04-16 | 珠海格力电器股份有限公司 | Rotor structure and motor |
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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 |
Granted publication date: 20100915 |
|
| CX01 | Expiry of patent term |