CN201414028Y - Permanent magnetic synchronous motor rotor of a refrigerant compressor - Google Patents
Permanent magnetic synchronous motor rotor of a refrigerant compressor Download PDFInfo
- Publication number
- CN201414028Y CN201414028Y CN2009203027316U CN200920302731U CN201414028Y CN 201414028 Y CN201414028 Y CN 201414028Y CN 2009203027316 U CN2009203027316 U CN 2009203027316U CN 200920302731 U CN200920302731 U CN 200920302731U CN 201414028 Y CN201414028 Y CN 201414028Y
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- CN
- China
- Prior art keywords
- permanent magnet
- permanent
- synchronous motor
- motor rotor
- magnetic synchronous
- 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 - Fee Related
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- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model relates to the refrigerant compressor technique, especially a permanent magnetic synchronous motor rotor, in order to improve the structure of the prior permanent magnetic synchronous motor rotor, conquers the defects of the prior rotor that the magnetic losses are large due to much permanent magnet air-gap or the material is wasted due to bad permanent magnet magnetism-isolatingeffect. The utility model provides a permanent magnetic synchronous motor rotor of a refrigerant compressor with high permanent magnet utilization rate, increased motor performance and reduced production cost of the motor. The permanent magnetic synchronous motor rotor comprises a permanent magnet and a squirrel cage, wherein the permanent magnet is composed of two arc permanent magnets and the arc outside surface of the permanent magnet closes up to the squirrel cage and a magnetism-isolating squirrel cage is arranged between the two arc permanent magnets.
Description
Technical field
The utility model relates to a kind of refrigerant compression machine technology, particularly permanent-magnetic synchronous motor rotor wherein.
Background technology
What in the prior art, the permanent-magnetic synchronous motor rotor in the refrigeration compressor motor adopted is 4 or two permanent magnets.The air gap that the rotor of 4 permanent magnets of employing produces is more, has caused the magnetic loss of permanent magnet, has influenced efficiency of motor and performance greatly.Adopt the rotor of 2 permanent magnets relatively poor, caused the permanent magnet magnetic line of force, greatly wasted material, and adopt this scheme that the material of permanent magnet is had very harsh requirement at internal rotor circulation every the magnetic effect.According to theory analysis, adopt the utilance of its permanent magnet of design of 4 permanent magnets to be about 75%, and adopt its permanent magnet utilance of design of 2 permanent magnets only to reach 56%.Adopt 4 or 2 rotor,, thereby in manufacturing process, cause the fracture of permanent magnet to cause scrapping of rotor easily because permanent magnet is a board-type.And adopt the board-type permanent magnet, and relatively more difficult in die casting for the rotor that this structure of compression motor is compact, be easy to cause the obstruction of permanent magnet trough.
The utility model content
The purpose of this utility model is to improve existing permanent-magnetic synchronous motor rotor structure, overcome the more big or permanent magnet of magnetic loss that causes of permanent magnet air gap every the magnetic weak effect and the phenomenon of waste material provides a kind of permanent magnet utilance height, can improve the refrigerant compressor permanent-magnetic synchronous motor rotor that motor performance can reduce the motor production cost again.
The utility model adopts following technical scheme to achieve these goals:
A kind of refrigerant compressor permanent-magnetic synchronous motor rotor has permanent magnet and mouse cage, and above-mentioned permanent magnet is made up of two circular arc permanent magnets, and the arc lateral surface of permanent magnet presses close to mouse cage, is provided with every the magnetic mouse cage between two circular arc permanent magnets.
In order to reduce permanent magnet inner magnet line of force circulation as far as possible, these novel circular arc permanent magnet two ends are provided with circular chamfering, prevent that wedge angle from increasing the inner circulation of the magnetic line of force.
The utility model main feature is: arc-shaped permanent magnet is more pressed close to mouse cage, has improved the utilance of magnet, has reduced the various losses of permanent magnet, has improved efficiency of motor, and can reduce scrapping of motor, has reduced the cost of motor.
Description of drawings
Fig. 1 is the utility model cross-sectional structure schematic diagram.
Fig. 2 is this novel permanent magnetic body structure schematic diagram.
Fig. 2-1 is an A place enlarged diagram among Fig. 2.
Embodiment
See Fig. 1 to Fig. 2-1, the utlity model has two circular arc permanent magnets 1, mouse cage 2 and every magnetic mouse cage 3, above-mentioned permanent magnet arc two ends sharp corner is provided with circular chamfering 11, two permanent magnets are encircled into round shape, and mouse cage is pressed close in the permanent magnet arc outside, is provided with every the magnetic mouse cage to intercept the inside circulation of the magnetic line of force between two permanent magnets.
Claims (2)
1. refrigerant compressor permanent-magnetic synchronous motor rotor, have permanent magnet (1) and mouse cage (2), it is characterized in that: above-mentioned permanent magnet is made up of two circular arc permanent magnets, and the arc lateral surface of permanent magnet presses close to mouse cage, is provided with every magnetic mouse cage (3) between two circular arc permanent magnets.
2. refrigerant compressor permanent-magnetic synchronous motor rotor according to claim 1 is characterized in that: above-mentioned permanent magnet arc body two ends sharp corner is provided with circular chamfering (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203027316U CN201414028Y (en) | 2009-04-30 | 2009-04-30 | Permanent magnetic synchronous motor rotor of a refrigerant compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203027316U CN201414028Y (en) | 2009-04-30 | 2009-04-30 | Permanent magnetic synchronous motor rotor of a refrigerant compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201414028Y true CN201414028Y (en) | 2010-02-24 |
Family
ID=41715909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203027316U Expired - Fee Related CN201414028Y (en) | 2009-04-30 | 2009-04-30 | Permanent magnetic synchronous motor rotor of a refrigerant compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201414028Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134868A (en) * | 2017-04-25 | 2017-09-05 | 高大田 | A kind of magnetic leakage free squirrel-cage permanent magnet AC machine rotor |
-
2009
- 2009-04-30 CN CN2009203027316U patent/CN201414028Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134868A (en) * | 2017-04-25 | 2017-09-05 | 高大田 | A kind of magnetic leakage free squirrel-cage permanent magnet AC machine rotor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20140430 |