CN2358630Y - High efficiency high starting torque permasyn motor - Google Patents
High efficiency high starting torque permasyn motor Download PDFInfo
- Publication number
- CN2358630Y CN2358630Y CN98239475U CN98239475U CN2358630Y CN 2358630 Y CN2358630 Y CN 2358630Y CN 98239475 U CN98239475 U CN 98239475U CN 98239475 U CN98239475 U CN 98239475U CN 2358630 Y CN2358630 Y CN 2358630Y
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- CN
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- permanent magnet
- permanent magnets
- starting torque
- magnetic bridge
- motor
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- Expired - Fee Related
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- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model relates to a high efficiency high starting torque permasyn motor, which comprises a base, a stator arranged in the base and a rotor, wherein, the stator is used by an ordinary induction motor, and the rotor is composed of a rotary shaft, an iron core, a permanent magnet and a squirrel cage conductor. Radially distributed permanent magnets are inlaid into a groove of the permanent magnets, and iron cores are arranged in the groove of the permanent magnets along a circumferential direction. The groove of the permanent magnets is positioned below a groove of the squirrel cage conductor, and a pole separating magnetic bridge and a pole center separating magnetic bridge are arranged between the two grooves. The utility model has the advantages of compact structure, reasonable layout of the permanent magnets, high starting torque and high overload capacity, is not only favorable to the processing of the permanent magnets, but also greatly increases the utilization rates of permanent magnet materials. In light loads, the utility model has high power and high power factors and has outstanding energy-saving effects.
Description
The utility model relates to a kind of rare-earth permanent-magnet synchronous motor, particularly a kind of efficient high starting torque permanent magnet synchronous motor.
As everyone knows, rare earth permanent-magnetic material is applied to electromechanics trade, makes motor product that major transformation take place.Rare-earth permanent-magnet synchronous motor is compared with general induction motor has obviously high efficient and power factor.The rotor that it is made of stator, permanent magnet and the mouse cage close with the conventional induction motor stator etc. is formed.Need in some loads under the occasion of big starting torque and overload capacity, the motor coupling is unreasonable, often cause the situation of the waste electric energy of " low load with strong power ", is 55kW as the oil field with 14 type oil pumper institute distribution engine power, and through being commonly used in about 16kW, this moment, efficient was lower than 40%, and power factor is lower than 0.40, and electric energy is not fully utilized.How to improve existing excellent start performance, become the key technical problem that needs to be resolved hurrily.
The purpose of this utility model provides a kind of efficient high starting torque permanent magnet synchronous motor, its compact conformation, permanent magnet are rationally distributed, both helped permanent magnet processing, significantly improve the permanent magnetic material utilance again, make motor that high starting torque and overload capacity not only be arranged, and high efficient and power factor are arranged when underloading, have outstanding energy-saving effect.
The purpose of this utility model is achieved in that this device comprises support and assembles the stator that the conventional induction motor in it is used, the rotor that constitutes by rotating shaft, iron core, permanent magnet, mouse cage conductor, wherein radially-arranged permanent magnet embeds unshakable in one's determination along in the permanent magnet trough of circumferential array, permanent magnet trough is positioned at mouse cage conductor slot below, and interpolar septum cordis magnetic bridge every magnetic bridge and is extremely arranged between two grooves.
Because the utility model is improved on the basis of existing induction motor structure, so be easy to realize.This device adopts the built-in rotor structure, radially-arranged permanent magnet is embedded in the permanent magnet trough unshakable in one's determination regularly by polarity, because of permanent magnet along circumferential array, not only permanent magnet manufacturing, install all very convenient, so help permanent magnet processing, rationally distributed, can significantly improve the permanent magnetic material utilance, can reach and dwindle the motor volume, when reducing manufacturing cost, improve the starting torque of motor and the purpose of overload capacity.During the motor operation, the version of permanent magnet is installed with rotor surface compares, permanent magnet is installed firmly, and mechanical strength height, permanent magnet are positioned at mouse cage conductor below, and shield effectiveness is good, is not easy loss of excitation.Interpolar septum cordis magnetic bridge every magnetic bridge and extremely is set between permanent magnet trough unshakable in one's determination and mouse cage conductor slot, can control the unloaded magnetic leakage factor of motor, further raise the efficiency and power factor, especially motor also can have higher efficient and power factor when underloading.For further reaching the purpose of economize on electricity, should strictly control above-mentioned size every magnetic bridge, reduce unloaded magnetic leakage factor as far as possible, to increase the air gap useful flux, improve the permanent magnetic material utilance.Should be at 2-8mm for interpolar every magnetic bridge length b span, width c should be at 1.0-1.5mm, and extremely middle septum cordis magnetic bridge width d should be at 1-4mm.
The utility model is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is a kind of rotor structure schematic diagram of the utility model.
Fig. 2 is an I portion partial enlarged drawing among Fig. 1.
Fig. 3 is an II portion partial enlarged drawing among Fig. 1.
Describe concrete structure of the present utility model in detail according to Fig. 1-3.The basic structure of this device is except that rotor, and remainder is with the basic structure of conventional induction motor, as parts such as support, stators.Its rotor is made of rotating shaft 1, the iron core 2 that has circumferential array permanent magnet trough 5, permanent magnet 3, mouse cage conductor 4 etc.Wherein the preferential rare earth permanent-magnetic materials that adopt of permanent magnet 3 are made, and its specification, the visual concrete instructions for use of shape size determine that unshakable in one's determination 2 permanent magnet trough 5 is positioned at the below of mouse cage conductor slot, and interpolar septum cordis magnetic bridge 7 every magnetic bridge 6 and is extremely arranged between two grooves.Present embodiment adopts the two poles of the earth radial structure, and every utmost point permanent magnet 3 is made six identical rectangular shapes, along circumferentially embedding successively in the permanent magnet trough 5 of iron core 2.Above-mentioned different and preferentially choose in following numerical value with capacity motor every the magnetic bridge size: interpolar is every magnetic bridge length b=2-8mm, width c=1.0-1.5mm, extremely in septum cordis magnetic bridge width d=1-4mm.
Utilize the efficient high starting torque permanent magnet synchronous motor in 7.5kW the two poles of the earth of the load of the pumps that the technical solution of the utility model designs, the interpolar of choosing is every magnetic bridge length b=3mm, width c=1.15mm, extremely in septum cordis magnetic bridge width d=2mm.After this motor is made by the standard specification accessory, its every performance index with compare with the capacity induction motor, (seeing Table 1) is significantly increased.
| Efficient (%) | Power factor | The starting torque multiple | |
| Permanent magnet synchronous motor | 92.2 | 0.955 | 3.8 |
| Induction motor | 86.2 | 0.88 | 2.0 |
Claims (2)
1, a kind of efficient high starting torque permanent magnet synchronous motor, comprise support and assemble the stator that the conventional induction motor in it is used, the rotor that constitutes by rotating shaft, iron core, permanent magnet, mouse cage conductor, it is unshakable in one's determination along in the permanent magnet trough of circumferential array to it is characterized in that radially-arranged permanent magnet embeds, permanent magnet trough is positioned at mouse cage conductor slot below, and interpolar septum cordis magnetic bridge every magnetic bridge and is extremely arranged between two grooves.
2, motor according to claim 1 is characterized in that interpolar every magnetic bridge length b=2-8mm, width c=1.0-1.5mm, and utmost point center isolates bridge width d=1-4mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98239475U CN2358630Y (en) | 1998-11-26 | 1998-11-26 | High efficiency high starting torque permasyn motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN98239475U CN2358630Y (en) | 1998-11-26 | 1998-11-26 | High efficiency high starting torque permasyn motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2358630Y true CN2358630Y (en) | 2000-01-12 |
Family
ID=33986842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98239475U Expired - Fee Related CN2358630Y (en) | 1998-11-26 | 1998-11-26 | High efficiency high starting torque permasyn motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2358630Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100345358C (en) * | 2005-07-27 | 2007-10-24 | 沈阳工业大学 | Permanent magnet synchronous motor for shielded pump |
| CN101783557B (en) * | 2010-02-08 | 2012-03-21 | 北京航空航天大学 | Permanent magnet synchronous motor without stator iron core |
-
1998
- 1998-11-26 CN CN98239475U patent/CN2358630Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100345358C (en) * | 2005-07-27 | 2007-10-24 | 沈阳工业大学 | Permanent magnet synchronous motor for shielded pump |
| CN101783557B (en) * | 2010-02-08 | 2012-03-21 | 北京航空航天大学 | Permanent magnet synchronous motor without stator iron core |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |