CN2715415Y - High starting dynamic torque permanent magnet synchronous motor - Google Patents
High starting dynamic torque permanent magnet synchronous motor Download PDFInfo
- Publication number
- CN2715415Y CN2715415Y CN 200420066915 CN200420066915U CN2715415Y CN 2715415 Y CN2715415 Y CN 2715415Y CN 200420066915 CN200420066915 CN 200420066915 CN 200420066915 U CN200420066915 U CN 200420066915U CN 2715415 Y CN2715415 Y CN 2715415Y
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- CN
- China
- Prior art keywords
- permanent magnet
- split type
- magnetic pole
- type magnetic
- high starting
- 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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Abstract
The utility model provides a high starting dynamic torque permanent magnet synchronous motor, comprising a stator and a rotor. The rotor comprises split type magnetic poles, a magnetic isolating sleeve, permanent magnets, guide strips, end rings and a rotation shaft. A shaft center hole of the magnetic isolating sleeve is fixedly sleeved on the rotation shaft; the split type magnetic poles are equispaced in sector along the circumference of the magnetic isolating sleeve and is connected with the periphery surface of the magnetic isolating sleeve. The radical interface of each split type magnetic pole is provided with a permanent magnet; the magnetization direction of each permanent magnet is along the tangential direction of the rotor. The same polarity of two contiguous permanent magnets are face to face. A plurality of guide strips are equispaced in axial direction on the inner side of the periphery surface of each split type magnetic pole; two ends of each guide strip are connected with the end rings on two ends of each split type magnetic pole. Each split type magnetic pole is laminated and closed assembled by a plurality of magnetic conductive thin-plates magnetic poles. The utility model has high starting dynamic torque, large overload capacity and high operating efficiency. The high starting dynamic torque permanent magnet synchronous motor solve the problem that an oil pumping unit uses large dynamic force to do very little work, and the high starting dynamic torque permanent magnet synchronous motor has conspicuous energy-saving effect.
Description
Technical field
The utility model relates to a kind of high starting torque permanent magnet synchronous motor, is mainly used on the beam pumping unit and uses as dragging motor.
Background technology
At present, on beam pumping unit, generally adopt asynchronous motor as dragging motor.Oil pumper has very big resistance when starting, resistance has very big fluctuation during operation, requires motor that enough starting torques and stronger overload capacity are arranged.And the asynchronous motor starting torque multiple that generally adopts now is between 1.7～2, overload capacity is between 2～2.2, in order to guarantee pump reliable starting of function and operation, motor capacity can not be chosen by the operation average power, and must choose the motor of larger capacity, enough starting torque and overload capacity is provided.This just makes the motor long-time running in low load condition, is commonly called as ' low load with strong power ' state, causes efficient low, and power consumption is big.
Summary of the invention
The purpose of this utility model just provides a kind of high starting torque permanent magnet synchronous motor, the problem that the efficient that exists with the dragging motor that solves existing beam pumping unit is low, power consumption is big.
The technical solution of the utility model is: comprise stator and rotor, it is characterized in that: described rotor comprises split type magnetic pole, magnetic shield, permanent magnet, sliver, end ring and rotating shaft, the axle center hole of magnetic shield is enclosed within the rotating shaft, split type magnetic pole is fan-shaped and is uniformly distributed along the circumference and is connected outer peripheral face at described magnetic shield, radially interface at each split type magnetic pole is equipped with permanent magnet, the magnetizing direction of this permanent magnet is the tangential direction of rotor, and adjacent two permanent magnet same polarities are relative; Uniform in the outer peripheral face of described split type magnetic pole have many axial slivers again, and the two ends of this sliver are connected with the end ring that is located at split type magnetic pole two ends; Split type magnetic pole is repeatedly adorned by multi-disc magnetic conduction thin plate pole lamination and is formed.
Interconnect by the dovetail tongue-and-groove between described split type magnetic pole and the magnetic shield.
Described permanent magnet is selected NdFeB material for use; Described sliver and end ring are made by red copper, weld with brass therebetween.
Two ends at described split type magnetic pole and magnetic shield are provided with the aluminum end plate.
The application of split type magnetic pole and magnetic shield makes each interpolar of rotor in the utility model without any the leakage magnetic circuit that permeability magnetic material forms, and can make full use of permanent magnetic material, produces maximum every utmost point magnetic fluxs, makes motor that big exerting oneself and overload capacity greatly be arranged.The sliver end ring is formed started squirrel-cage, can produce big starting torque.Its starting torque multiple reaches more than 3.5～4, and overload capacity is more than 3 times, and full load efficiency is more than 93%, and it is big to have starting torque, and overload capacity is strong, and the characteristics that operational efficiency is high are specially adapted to the operating mode of oil pumper.
The utlity model has high starting torque, big overload capacity, high operational efficiency.Therefore, when on beam pumping unit, substituting present normal asynchronous, can fall one to two grade of power and select for use with this utility model.Solved the problem of oil pumper power " low load with strong power ", remarkable energy saving effect has been arranged.
Description of drawings
Fig. 1 is a rotor structure axial section of the present utility model.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is split type pole lamination figure.
Fig. 4 is split type magnetic pole figure.
Fig. 5 is magnetic shield figure.
Fig. 6 is permanent magnet figure.
Fig. 7 is started squirrel-cage figure.
Embodiment
Referring to Fig. 1～Fig. 7, the utility model primary structure is made up of stator, rotor, support, end cap etc., and the structure of their combination and stator all adopts prior art.Characteristics of the present utility model are that rotor is made up of split type magnetic pole 1, magnetic shield 2, permanent magnet 3, sliver 4, end ring 5, end plate 6 and rotating shaft 7.Split type magnetic pole 1 is repeatedly adorned by the pole lamination 8 of magnetic conduction thin plate stamping-out and is formed, and connects without any magnetic circuit between each magnetic pole.Magnetic shield 2 is made by non-magnet_conductible material.Have dovetail groove on the magnetic pole 1, be assembled on the dovetail of magnetic shield 2, magnetic pole 1 is evenly distributed be fixed on the magnetic shield 2.Magnetic shield 2 is fixed in the rotating shaft 7 with interference fit.Magnetic pole 1 outer inner round side has the hole, garden that all distributes, for laying the sliver 4 that electric motor starting is used.All sliver 4 two ends and end ring 5 connect to form cage-shaped structure (referring to Fig. 7), and sliver 4 is a red copper with end ring 5 materials, welds with brass therebetween.Between each magnetic pole 1 equally distributed interval is arranged, be used to place permanent magnet 3.The magnetizing direction of permanent magnet 3 is tangential direction of rotor, and adjacent two permanent magnet 3 same polarities are relative.So along the circumferential direction just formed the alternate magnetic pole (referring to Fig. 2) of NS at rotor.End plate 6 is formed from aluminium, and mainly is to be placed on two ends of rotor to provide protection to rotor.
With the split type pole lamination 8 of punching silicon-steel, repeatedly dress up magnetic pole 1, have 8 magnetic poles.There are 8 dovetails to be evenly distributed on outer peripheral face on the magnetic shield 2, are connected with 8 magnetic poles 1 respectively.7 slivers 4 are arranged on each magnetic pole.Permanent magnet 3 is selected NdFeB material for use.The rated power 30KW of this embodiment, rated efficiency 93%, the starting torque multiple is 4.2, overload capacity is 3.3.Therefore on beam pumping unit, can guarantee to start reliably and operation efficiently, and can bear big fluctuation, have energy-conservation well and effect that reduce cost with the utility model.
Claims (4)
1, a kind of high starting torque permanent magnet synchronous motor, comprise stator and rotor, it is characterized in that: described rotor comprises split type magnetic pole, magnetic shield, permanent magnet, sliver, end ring and rotating shaft, the axle center hole of magnetic shield is fixed in the rotating shaft, split type magnetic pole is the fan-shaped outer peripheral face that is uniformly distributed along the circumference and is connected described magnetic shield, radially interface at each split type magnetic pole is equipped with permanent magnet, the magnetizing direction of this permanent magnet is the tangential direction of rotor, and adjacent two permanent magnet same polarities are relative; Uniform in the outer peripheral face of described split type magnetic pole have many axial slivers again, and the two ends of this sliver are connected with the end ring that is located at split type magnetic pole two ends; Described split type magnetic pole is repeatedly adorned by multi-disc magnetic conduction thin plate pole lamination and is formed.
2, high starting torque permanent magnet synchronous motor according to claim 1 is characterized in that: interconnect by dovetail and groove between described split type magnetic pole and the magnetic shield.
3, high starting torque permanent magnet synchronous motor according to claim 1, it is characterized in that: described permanent magnet is normal by NdFeB material; Described sliver and end ring are made by red copper, weld with brass therebetween.
4, according to claim 1,2 or 3 described high starting torque permanent magnet synchronous motors, it is characterized in that: the two ends at described split type magnetic pole and magnetic shield are provided with the aluminum end plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420066915 CN2715415Y (en) | 2004-06-10 | 2004-06-10 | High starting dynamic torque permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420066915 CN2715415Y (en) | 2004-06-10 | 2004-06-10 | High starting dynamic torque permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2715415Y true CN2715415Y (en) | 2005-08-03 |
Family
ID=34873584
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420066915 Expired - Fee Related CN2715415Y (en) | 2004-06-10 | 2004-06-10 | High starting dynamic torque permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2715415Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118092A (en) * | 2011-01-26 | 2011-07-06 | 广东华拿东方能源有限公司 | Composite-rotor brushless double-fed alternating current motor |
| WO2013037209A1 (en) * | 2011-09-13 | 2013-03-21 | Chen Qiang | Rotor for permanent magnet motor |
| WO2014079015A1 (en) * | 2012-11-22 | 2014-05-30 | Emerson Electric Co. | Electric machines, stators and compressors and methods of manufacturing same |
| CN114362397A (en) * | 2022-02-21 | 2022-04-15 | 小米汽车科技有限公司 | Punching sheet structure, rotor assembly and motor |
-
2004
- 2004-06-10 CN CN 200420066915 patent/CN2715415Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118092A (en) * | 2011-01-26 | 2011-07-06 | 广东华拿东方能源有限公司 | Composite-rotor brushless double-fed alternating current motor |
| CN102118092B (en) * | 2011-01-26 | 2013-01-30 | 杨华 | Composite-rotor brushless double-fed alternating current motor |
| WO2013037209A1 (en) * | 2011-09-13 | 2013-03-21 | Chen Qiang | Rotor for permanent magnet motor |
| WO2014079015A1 (en) * | 2012-11-22 | 2014-05-30 | Emerson Electric Co. | Electric machines, stators and compressors and methods of manufacturing same |
| CN104798294A (en) * | 2012-11-22 | 2015-07-22 | 艾默生电气公司 | Electric machines, stators and compressors and methods of manufacturing same |
| CN104798294B (en) * | 2012-11-22 | 2018-09-25 | 艾默生电气公司 | Motor, stator and compressor, and the method that manufactures them |
| US10141801B2 (en) | 2012-11-22 | 2018-11-27 | Emerson Electric Co. | Electric machines, stators and compressors and methods of manufacturing same |
| CN114362397A (en) * | 2022-02-21 | 2022-04-15 | 小米汽车科技有限公司 | Punching sheet structure, rotor assembly and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HENAN TEGAOTE MOTOR SCIENCE DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: LIU HONGYU; PATENTEE Effective date: 20080411 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080411 Address after: Henan City Bianjing road 61, zip code: 475002 Patentee after: Henan Super Special Motor Technology Development Co., Ltd. Address before: Room 1502, unit 2, building 3, garden area, Harbin Industrial Park, Nangang District, Harbin, Heilongjiang Province, zip code: 150001 Co-patentee before: Wang Qinghua Patentee before: Liu Hong pre Co-patentee before: Sun Baoxin |
|
| ASS | Succession or assignment of patent right |
Owner name: LIU HONGYU Free format text: FORMER OWNER: HENAN TEGAOTE MOTOR SCIENCE DEVELOPMENT CO., LTD. Effective date: 20090925 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090925 Address after: Room 1502, unit 2, building 3, garden area, Harbin Industrial Park, Nangang District, Harbin, Heilongjiang Province, zip code: 150001 Co-patentee after: Wang Qinghua Patentee after: Liu Hong pre Co-patentee after: Sun Baoxin Address before: Henan City Bianjing road 61, zip code: 475002 Patentee before: Henan Super Special Motor Technology Development Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050803 Termination date: 20110610 |