CN201742272U - Low-speed permanent magnetic motor with applicable voltage of 1140V - Google Patents
Low-speed permanent magnetic motor with applicable voltage of 1140V Download PDFInfo
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- CN201742272U CN201742272U CN2010205054857U CN201020505485U CN201742272U CN 201742272 U CN201742272 U CN 201742272U CN 2010205054857 U CN2010205054857 U CN 2010205054857U CN 201020505485 U CN201020505485 U CN 201020505485U CN 201742272 U CN201742272 U CN 201742272U
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Abstract
A low-speed permanent magnetic motor with applicable voltage of 1140V is characterized in that motor pole pairs p is equal to 6, namely, 12 poles, a stator coil winding is designed to be a rotating magnetic field capable of generating 6 pairs of alternative N and S poles, the rotating speed is 500r/min, a rotor is designed to be a permanent magnetic pole with 6 pairs (12 poles) of alternative N and S poles; according to the principle that like poles repel and opposite poles attract, the rotating magnetic field generated by the stator drags the permanent magnetic field to rotate synchronously to achieve the output rotating speed of 500r/min. The low-speed permanent magnetic motor realizes the synchronous rotating speed output of 500r/min of a three-phase permanent magnetic synchronous motor with center high of more than 200. The low-speed permanent magnetic motor solves the problems that an oil pumping unit in an oil field is equipped with a low-speed three-phase permanent magnetic motor: 1. a belt pulley does not need to be replaced to reduce the rotating speed and simultaneously the wear of a belt is reduced; and 2. frequency conversion equipment is not added to reduce the rotating speed, thus saving additional equipment investment and maintenance costs. A three-phase double-speed or multiple-speed asynchronous motor with 1-2 power level(s) higher than the low-speed permanent magnetic motor can be replaced, thus solving the phenomenon that 'a high-power motor works for a low-power oil pumping unit', saving electric energy and reducing oil pumping cost.
Description
Technical field
The utility model relates to the rotor of used for oil-field oil pumper low speed three-phase permanent-magnetic synchronous motors, and the stator coil winding data is mainly used in the permanent magnet synchronous motor, belongs to motor and makes the field.
Background technology
At present, oil-field oil pumper need dispose the three-phase permanent-magnetic synchronous motors that rotating speed is 500r/min, but according to national standard, its rotating speed of the three-phase permanent-magnetic synchronous motors of motor height of center below 315 is minimum to be 750 rev/mins, can not satisfy the oil-field oil pumper needs:
1) when oil pumper needs the rotating speed of 500r/min, need on former motor to realize that because belt wheel reduces, the belt contact area reduces by reducing the belt wheel size, transmission efficiency reduces, and is easy to skid, and belt deterioration increases.
2) in case when belt wheel can't reduce again, the one, realize needed speed by installing RHVC additional, increased the equipment input cost so greatly.
3) the how fast threephase asynchronous of repacking, but the asynchronous motor starting moment of torsion is little, must strengthen installed capacity, so just causes " low load with strong power ", energy consumption increases, and cost for oil production increases.
The utility model content
The purpose of this utility model is under the prerequisite that does not influence the permanent magnet motor performance, and motor rotor structure and stator winding data are redesigned calculating, makes permanent magnet synchronous motor reach 500 rev/mins of low speed.
The purpose of this utility model is to be achieved through the following technical solutions:
Be suitable for the low-speed permanent-magnet motor of voltage 1140V, motor number of pole-pairs p=6, be 12 utmost points, the stator coil design of Windings become to produce 6 pairs of rotating magnetic fields that N, S replace mutually, and its rotary speed is 500r/min, and rotor design becomes 6 permanent magnet poles that (12 utmost point) N, S replaced extremely mutually, inhale mutually according to the magnetic field same sex, the principle that the opposite sex is repelled each other, the rotating magnetic field that is produced by stator drags the rotor permanent-magnetic field and synchronizedly runs, and reaches output speed 500r/min.Be embedded with the sintered NdFeB magnet steel that is complementary with rotating speed in the rotor.
The utility model is realized the synchronous speed output of 500r/min at the three-phase permanent-magnetic synchronous motors of height of center more than 200.Solved oil-field oil pumper configuration low speed three-phase permanent-magnetic synchronous motors problem:
1, no longer needs to reduce rotating speed, reduce belt deterioration simultaneously by changing belt wheel.
2, acquire frequency conversion equipment no longer in addition and reduce rotating speed, saved extra equipment input and maintenance cost.
Can replace the three-phase double speed or the polyspeed asynchronous motor of a high 1-2 power grade, solve " low load with strong power " phenomenon, save electric energy, reduce cost for oil production.
Description of drawings
With embodiment the utility model is described in further detail with reference to the accompanying drawings below.
Fig. 1 is the structure chart of the described motor rotor of the utility model embodiment;
Fig. 2 .1 is the front view of permanent-magnet steel; Fig. 2 .2 is the end view of permanent-magnet steel;
Fig. 3 is the permanent magnet poles distribution map of motor.
Embodiment
According to motor synchronous speed formula n=60f/p
N-synchronous speed in the formula formula
The f-frequency
P-motor number of pole-pairs
When motor speed is n=500r/min, when supply frequency was f=50Hz, motor number of pole-pairs p=6 was 12 utmost point synchronous motors.Principle according to permanent magnet synchronous motor, the stator coil design of Windings becomes to produce 6 pairs of rotating magnetic fields that N, S replace mutually, its rotary speed is 500r/min, rotor design becomes 6 permanent magnet poles that (12 utmost point) N, S replaced extremely mutually, inhale mutually according to the magnetic field same sex, the principle that the opposite sex is repelled each other, the rotating magnetic field that is produced by stator drags the rotor permanent-magnetic field and synchronizedly runs, and reaches output speed 500r/min.
Motor rotor is overrided to form by rotor punching, 12 main magnet steel holes 1 and secondary magnet steel hole 2 (see figure 1)s along the circumferential direction evenly distribute in the punching, punching laminates the back and generate master/secondary magnet steel groove by master/secondary magnet steel hole on the folded high direction of rotor, be used to embed Nd-Fe-B magnet steel, magnet steel 3 is a sintered neodymium iron boron material, be cuboid, after magnetizing, become the permanent-magnet steel (see figure 2), magnet steel 3 discharges according to certain rules by magnetic direction, make rotor generate magnetic and be respectively N, 12 permanent magnet poles 4 (see figure 3)s that S polarity replaces mutually, stator winding embeds winding by producing 6 to (12 utmost point) rotating magnetic field mode, and connect, make stator after energising, produce magnetic field,, produce the rotating magnetic field of 500r/min when frequency during at 50Hz.
Claims (2)
1. be suitable for the low-speed permanent-magnet motor of voltage 1140V, it is characterized in that motor number of pole-pairs p=6 is 12 utmost points, the stator coil design of Windings becomes to produce 6 pairs of rotating magnetic fields that N, S replace mutually, the permanent magnet poles that rotor design becomes 6 couples of N, S to replace extremely mutually.
2. the low-speed permanent-magnet motor of suitable voltage 1140V according to claim 1 is characterized in that: be embedded with the sintered NdFeB magnet steel that is complementary with rotating speed in the rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205054857U CN201742272U (en) | 2010-08-26 | 2010-08-26 | Low-speed permanent magnetic motor with applicable voltage of 1140V |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205054857U CN201742272U (en) | 2010-08-26 | 2010-08-26 | Low-speed permanent magnetic motor with applicable voltage of 1140V |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201742272U true CN201742272U (en) | 2011-02-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205054857U Expired - Fee Related CN201742272U (en) | 2010-08-26 | 2010-08-26 | Low-speed permanent magnetic motor with applicable voltage of 1140V |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201742272U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895183A (en) * | 2010-08-26 | 2010-11-24 | 无锡市华东电机厂 | Low-speed permanent magnet motor suitable for voltage of 1,140 V |
| CN104135098A (en) * | 2014-08-08 | 2014-11-05 | 中国航天科技集团公司第四研究院四0一所 | Permanent-magnetic brushless motor rotor at intermediate and high rotating speed |
-
2010
- 2010-08-26 CN CN2010205054857U patent/CN201742272U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101895183A (en) * | 2010-08-26 | 2010-11-24 | 无锡市华东电机厂 | Low-speed permanent magnet motor suitable for voltage of 1,140 V |
| CN104135098A (en) * | 2014-08-08 | 2014-11-05 | 中国航天科技集团公司第四研究院四0一所 | Permanent-magnetic brushless motor rotor at intermediate and high rotating speed |
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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: WUXI HUADA MOTOR TECHNOLOGY DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: HUADONG MOTOR FACTORY, WUXI CITY Effective date: 20130206 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 214156 WUXI, JIANGSU PROVINCE TO: 214000 WUXI, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130206 Address after: 214000 No. 18 Renmin West Road, Yangshan Town, Huishan District, Jiangsu, Wuxi Patentee after: Wuxi Huada Motor Technology Development Co., Ltd. Address before: 214156, No. 18, Tian Shun Road, Yangshan Town, Huishan District, Jiangsu, Wuxi Patentee before: Wuxi Huadong Motor Factory |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Low-speed permanent magnet motor suitable for voltage of 1,140 V Effective date of registration: 20130925 Granted publication date: 20110209 Pledgee: Agricultural Bank of China Limited by Share Ltd Wuxi science and Technology Branch Pledgor: Wuxi Huada Motor Technology Development Co., Ltd. Registration number: 2013990000701 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20170826 |