CN2638323Y - Combined rotor rare earth permanent-magnetic synchronous motor - Google Patents
Combined rotor rare earth permanent-magnetic synchronous motor Download PDFInfo
- Publication number
- CN2638323Y CN2638323Y CN 03258886 CN03258886U CN2638323Y CN 2638323 Y CN2638323 Y CN 2638323Y CN 03258886 CN03258886 CN 03258886 CN 03258886 U CN03258886 U CN 03258886U CN 2638323 Y CN2638323 Y CN 2638323Y
- Authority
- CN
- China
- Prior art keywords
- rotor
- synchronous motor
- earth permanent
- magnetic
- magnet 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 - Lifetime
Links
- 229910052761 rare earth metal Inorganic materials 0.000 title claims abstract description 18
- 150000002910 rare earth metals Chemical class 0.000 title claims abstract description 18
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 30
- 239000010959 steel Substances 0.000 claims abstract description 30
- 239000002131 composite material Substances 0.000 claims abstract description 13
- 229910001369 Brass Inorganic materials 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000010951 brass Substances 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 238000009423 ventilation Methods 0.000 claims description 11
- 238000010030 laminating Methods 0.000 claims description 4
- 241000555745 Sciuridae Species 0.000 abstract 1
- 230000000977 initiatory effect Effects 0.000 abstract 1
- 229910001172 neodymium magnet Inorganic materials 0.000 description 4
- 230000005284 excitation Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000696 magnetic material Substances 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model discloses a rare-earth permanent magnetic synchronous engine of a composite engine, comprising a rotor, a rotary shaft and a housing, etc. The rotor comprises magnetic cores, formed by overlying sector steel pieces, which is arranged on the magnetic sleeve outside the rotating shaft, and magnetic steel pieces are tangentially arranged between magnetic cores. An axial ventilating slot is arranged between the magnetic steel and the magnetic sleeve, and the spiral ventilating slot is arranged on the rotor surface. Brass bars and red copper bars are distributed to form the squirrel cage bars in an interval way. The utility model has the advantages of good rotor rigidness, low initiating current, large torque, excellent power index, low temperature increase, rapid starting-up and stable running, thereby solving the trouble of magnet loss of permanent magnet of permanent magnetic engine, greatly improving the quality of the grid, fully developing the present grid capacity. Therefore the utility model can fully meet the power needs of oil field extractors.
Description
Technical field
The utility model relates to a kind of motor, a kind of rare-earth permanent-magnet synchronous motor of saying so more specifically.
Background technology
Rare-earth permanent-magnet synchronous motor is more the same than common synchronous motor, all is made up of rotor and stator, has high efficiency, High Power Factor, and the Remarkable Energy Saving characteristics are widely used.But also there are some technical defectives in rare-earth permanent magnet motor, and the big starting quality factor of starting current is poor; Magnetic pole adopts annular cold rolling steel disc to laminate assembling, and rigidity is poor, the processing technology complexity; And the rotor of permanent magnet synchronous motor heats up too high, and when induction-motor load was periodically pulsing, rotor heated up higher and faster, makes permanent magnet produce irreversible magnetic loss, causes the permanent magnet loss of excitation and loses efficacy.
The utility model content
The purpose of this utility model provides a kind of composite fabricated rotor rare-earth permanent-magnet synchronous motor, can improve the rigidity of magnetic pole, reduces the temperature rise of rotor, improve starting torque, starting current is little, hangs down power factor height under load, the low-voltage, has solved the problem of permanent magnet loss of excitation.
The technical solution of the utility model is as follows:
The composite fabricated rotor rare-earth permanent-magnet synchronous motor includes rotor, stator, and rotating shaft, casing is characterized in that rotor comprises being laminated by fan-shaped steel disc to be assembled into a pole core, is installed on the outer magnetic shield of rotating shaft, and magnet steel tangentially is installed between the pole core.
The axial ventilation groove is arranged between described magnet steel and the magnetic shield or between magnet steel and the pole core or on magnet steel surface or the magnetic pole.
Described rotor outer round surface has the spiral ventilation slot.
It is fastening by the rivet break-through that described fan-shaped steel disc laminates the back, and the fan-shaped steel disc central authorities after laminating cross magnetic pole tension key and fix, and has pole bolt to pass magnetic pole tension key pole core is fixed on the magnetic shield.
Pole core is 2,4,6 or 8.
Described squirrel-cage bar adopts brass rod and red copper bar to be intervally arranged, and the quantity ratio of brass rod and red copper bar is 1: 1～4.
Described rotor one side is equipped with fan.
The angle of pitch of ventilation slot is 10～30.
Described magnet steel is a permanent magnetic material NdFeB Nd-Fe-B permanent magnet.
Laminate after the punching out of rotor magnetic pole employing rolled steel plate and be assembled into an integral body, had stronger rigidity and favorable manufacturability.
Permanent-magnet steel is tangentially installed, and magnetic flux in parallel is bigger, and reluctance torque is bigger, improves the operation stability of motor.
When the utility model rotor rotates, the axial ventilation groove around the magnet steel and the spiral ventilation slot of rotor surface have constituted the ventilation cooling heat dissipation loop in the rotor, reduced the temperature of magnetic pole and magnet steel, prevent the heat demagnetization of permanent magnet, the no-load loss of motor can descend 25%, and rotor temperature rise descends 8～15.When motor load is big, on the rotor next door fan is installed, more can get the effect that reduces magnetic pole and magnet steel temperature rise, prolonged the useful life of rotor.
The utility model rotor starting cage strip adoption brass rod and red copper bar are intervally arranged, and make motor have very high starting torque and less starting current, have outstanding starting quality factor.
The utility model rotor adopts new rare-earth permanent magnetic material NdFeB Nd-Fe-B permanent magnet excitation, and has the self-starting winding, but across-the-line starting or reduced voltage starting, energy-efficient, energy index is good, and starting rapidly, operate steadily, volume is little, and is in light weight, temperature rise is low, simple to operate, greatly improved the quality factor of electrical network, give full play to the capacity of present electrical network, can satisfy the power needs of oil-field oil pumper especially, solve the phenomenon of low load with strong power in the load starting dragging system.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is that the utility model rotating shaft is to cutaway view.
Fig. 3 is the utility model transverse sectional view.
Fig. 4 is the utility model ventilation and heat loop schematic diagram.
Embodiment
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4.The utility model is a kind of composite fabricated rotor rare-earth permanent-magnet synchronous motor, rotor 2 is arranged, stator 4, rotating shaft 3, casing 1, the rotating shaft 3 outer magnetic shields 15 that are equipped with, outside the magnetic shield 15 eight pole cores 13 are installed, pole core 13 two ends are equipped with end ring 8, and rotor starting squirrel-cage bar 9 is installed between the end ring 8, squirrel-cage bar 9 adopts brass rod and red copper bar to be intervally arranged, and the quantity ratio of brass rod and red copper bar is 1: 2.
Magnet steel 6 tangentially is installed between the pole core, magnet steel 6 is a flat, between magnet steel 6 and the magnetic shield 15 air duct 5 is arranged, pole core is laminated by fan-shaped steel disc and assembles, fan-shaped steel disc laminates the back both ends of the surface and adds cover end plate 10, fastening by rivet 16, it is fixing that magnetic pole tension key 12 crosses in the fan-shaped steel disc central authorities after laminating, and each pole core 13 all has a plurality of pole bolts 11 to pass magnetic pole tension key 12 pole core is installed on the magnetic shield 15.One end of rotor is equipped with circulating fan 14.The rotor outer round surface has spiral ventilation slot 7.
Claims (8)
1, the composite fabricated rotor rare-earth permanent-magnet synchronous motor includes rotor, stator, rotating shaft, squirrel-cage bar, casing, it is characterized in that rotor comprises being laminated by fan-shaped steel disc is assembled into a pole core, is installed on the outer magnetic shield of rotating shaft, and magnet steel tangentially is installed between the pole core.
2, composite fabricated rotor rare-earth permanent-magnet synchronous motor according to claim 1 is characterized in that between described magnet steel and the magnetic shield or the axial ventilation groove is arranged between magnet steel and the pole core or on magnet steel surface or the magnetic pole.
3, composite fabricated rotor rare-earth permanent-magnet synchronous motor according to claim 1 and 2 is characterized in that described rotor outer round surface has the spiral ventilation slot.
4, composite fabricated rotor rare-earth permanent-magnet synchronous motor according to claim 1 and 2, it is characterized in that described fan-shaped steel disc is fastening by the rivet break-through after laminating, fan-shaped steel disc central authorities after laminating cross magnetic pole tension key and fix, and have pole bolt to pass magnetic pole tension key pole core is fixed on the magnetic shield.
5, composite fabricated rotor rare-earth permanent-magnet synchronous motor according to claim 1 and 2 is characterized in that pole core is 2,4,6,8.
6, composite fabricated rotor rare-earth permanent-magnet synchronous motor according to claim 1 and 2 is characterized in that described squirrel-cage bar adopts brass rod and red copper bar to be intervally arranged, and the quantity of brass rod and red copper bar is than being 1:1～4.
7, composite fabricated rotor rare-earth permanent-magnet synchronous motor according to claim 1 and 2 is characterized in that described rotor one side is equipped with fan.
8, composite fabricated rotor rare-earth permanent-magnet synchronous motor according to claim 3, the angle of pitch that it is characterized in that ventilation slot is 10～30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03258886 CN2638323Y (en) | 2003-06-14 | 2003-06-14 | Combined rotor rare earth permanent-magnetic synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03258886 CN2638323Y (en) | 2003-06-14 | 2003-06-14 | Combined rotor rare earth permanent-magnetic synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2638323Y true CN2638323Y (en) | 2004-09-01 |
Family
ID=34295869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03258886 Expired - Lifetime CN2638323Y (en) | 2003-06-14 | 2003-06-14 | Combined rotor rare earth permanent-magnetic synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2638323Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100442638C (en) * | 2006-11-22 | 2008-12-10 | 北京佐腾达制冷空调设备有限公司 | Permanent magnet synchronous motor |
| CN102412644A (en) * | 2011-11-21 | 2012-04-11 | 沈阳工业大学 | Rotor magnetic pole structure for permanent motor |
| CN102522838A (en) * | 2011-11-30 | 2012-06-27 | 西安久和能源科技有限公司 | Tangential magnetic steel permanent magnet motor rotor |
-
2003
- 2003-06-14 CN CN 03258886 patent/CN2638323Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100442638C (en) * | 2006-11-22 | 2008-12-10 | 北京佐腾达制冷空调设备有限公司 | Permanent magnet synchronous motor |
| CN102412644A (en) * | 2011-11-21 | 2012-04-11 | 沈阳工业大学 | Rotor magnetic pole structure for permanent motor |
| CN102412644B (en) * | 2011-11-21 | 2015-10-07 | 沈阳工业大学 | A kind of rotor magnetic pole structure for permanent motor |
| CN102522838A (en) * | 2011-11-30 | 2012-06-27 | 西安久和能源科技有限公司 | Tangential magnetic steel permanent magnet motor rotor |
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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: ANHUI MINTENG PERMANENT MAGNET ELECTRICAL AND MEC Free format text: FORMER OWNER: LI HONGCHENG; PATENTEE Effective date: 20080118 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20080118 Address after: 011 Jinhu Road, Shuangfeng Industrial Development Zone, Hefei, Anhui, zip code: 230000 Co-patentee after: Wen Xu Patentee after: Anhui Ming Tang and Yong magnetic machinery and Electrical Equipment Co., Ltd. Address before: Room 604, 34 Shushan new village, Hefei, Anhui, zip code: 230001 Co-patentee before: Wen Xu Patentee before: Lee hung Cheng |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: ANHUI MINTENG PERMANENT MAGNET ELECTRICAL AND MECHANICAL EQUIPMENT CO.LTD.WENXU TO: ANHUI MINTENG PERMANENT MAGNET ELECTRICAL AND MECHANICAL EQUIPMENT CO.LTD. |
|
| CU01 | Correction of utility model patent |
Correction item: Patentee Correct: Anhui Mingteng Permanent-magnetic Machinery & Electrical Equipment Co., Ltd. False: Anhui Ming Tengyong magnet Electromechanical Equipment Co. Ltd Wen Xu Number: 35 Page: The title page Volume: 20 |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Patentee Correct: Anhui Mingteng Permanent-magnetic Machinery & Electrical Equipment Co., Ltd. False: Anhui Ming Tengyong magnet Electromechanical Equipment Co. Ltd Wen Xu Number: 35 Volume: 20 |
|
| ERR | Gazette correction |
Free format text: CORRECT: PATENTEE; FROM: ANHUI MINTENG PERMANENT MAGNET ELECTRICAL AND MECHANICAL EQUIPMENT CO.LTD.WENXU TO: ANHUI MINTENG PERMANENT MAGNET ELECTRICAL AND MECHANICAL EQUIPMENT CO.LTD. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130614 Granted publication date: 20040901 |