CN2169944Y - Rare-earth permanent magnet synchronous motor - Google Patents
Rare-earth permanent magnet synchronous motor Download PDFInfo
- Publication number
- CN2169944Y CN2169944Y CN 93223840 CN93223840U CN2169944Y CN 2169944 Y CN2169944 Y CN 2169944Y CN 93223840 CN93223840 CN 93223840 CN 93223840 U CN93223840 U CN 93223840U CN 2169944 Y CN2169944 Y CN 2169944Y
- Authority
- CN
- China
- Prior art keywords
- magnet
- rotor
- synchronous motor
- motor
- magnet steel
- 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
Links
Images
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model relates to a rare-earth permanent magnet synchronous motor. The structure of the stator is similar to the stator of an ordinary three phase synchronous motor, whereas the rotor is composed of a shaft, a magnetic steel and an aluminum casting squirrel cage. The magnetic steel which isolates the magnet through an air gap adopts the arrangement form of a tangential magnet steel body. The magnetic steel body is provided with a magnet isolating groove, a small magnet bridge and a magnetic steel groove. The motor of the utility model has the advantages of simple production process, good integrity of the rotor, large starting torque, high motor efficiency and power factor. The motor of the utility model is mainly used for the motor on the carding machine in the textile industry.
Description
The utility model relates to a kind of rare-earth triphase synchronous motor.
At present, the rotor structure of permanent magnet synchronous motor is to adopt copper ring (not magnetic conduction) as magnetic shield between rotor punching and rotating shaft, and this has not only increased many troubles that are difficult to overcome to production and processing technology, and has increased production cost.On the other hand, for every magnetic, rotor is divided into the several sections that is equal to number of poles, like this, the rotor globality is relatively poor, not only on the rotor manufacturing process, caused many difficulties, and the rotor mechanical intensity difference, the rotor in the high speed rotating be in, under the continuous percussion of centrifugal force, the rotor easy deformation, even rotor phenomenons such as " at the bottom of the mills " takes place, motor can't normally be moved.
A kind of rotor punching structure of rare-earth triphase synchronous motor is disclosed in CN2064129 Chinese patent specification, this structure is not basic solve rotor every the magnetic problem, in fact the rotor in the CN2064129 patent still adopts traditional copper ring every magnetic every magnetic, this has caused many difficulties to manufacturing process undoubtedly, simultaneously, increase production cost, therefore, be difficult to operation in enormous quantities.
The purpose of this utility model is to provide a kind of production technology easy, the rotor good integrity, and starting torque is big, the rare-earth triphase synchronous motor that efficiency of motor and all more similar motor of power factor are significantly increased.
The utility model is realized in the following way.
Rare-earth triphase synchronous motor of the present utility model mainly is made up of stator and rotor, and the stator of its stator structure and common three-phase synchronous motor is similar, and rotor then is made of axle, magnet steel and cast-in aluminum squirrel cage.Magnet steel adopts tangential magnet steel body to place form, on the magnet steel body, have four, six or eight T-shaped approximately grooves symmetrically, form four, six or eight magnet isolation tanks (air-gap is every magnetic) by the head of each T-slot around the axle of rotor, all leave certain clearance between each magnet isolation tank, this gap is called little magnetic bridge, and the pole of T-slot partly is called the magnet steel groove.
Magnet isolation tank width in the above-mentioned rotor is 3.5～6mm, and little magnetic bridge width is 2.5～6mm, and the magnet steel well width is 4～5.5mm.
Because the utility model adopts the embedding form of tangential magnet steel, increased the embedding radial width of magnet steel, compress rotating shaft and the be connected width of air simultaneously every magnetic, increased the radial width of the embedding magnet steel of rotor to greatest extent, make the magnet steel amount of rotor be guaranteed, thereby improved the energy index of motor significantly, efficiency of motor reaches 92%, power factor, the pull-out torque and the torque of pulling in also are greatly improved.Moreover, owing to adopt magnetic structure of the present utility model and magnetic Circuit Design, making the good integrity of rotor, manufacturing process is simple.
In order to make the utility model structure clear more complete, the utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 partly cuts open schematic diagram for the utility model rotor structure.
Fig. 2 is the A-A cut-away view of the utility model rotor.
Among the figure, 1 is cast-in aluminum squirrel cage, and 2 is magnet steel (neodymium iron boron), and 3 are rotating shaft, and 4 is magnet isolation tank, and 5 is little magnetic bridge, and 6 is the magnet steel groove.
Embodiment
Utilize design of the present utility model, the carding machine motor of textile industry is carried out improvement and design.Original threephase asynchronous FO
272-4,3.3 kilowatts of improvement and design become rare-earth triphase synchronous motor FXT72-4.Wherein stator winding employing pitch is the short distance winding of Y1=7, and the air gap of motor is 0.4mm, and the magnet steel flowing current separation of rotor punching is 5.5mm, and the magnet isolation tank width is 4.5mm, and the width of little magnetic bridge is 3mm.After adopting this design, every performance index of motor all reach significant raising.Concrete performance index contrast is as follows:
Claims (2)
1, a kind of rare-earth triphase synchronous motor, mainly form by stator and rotor, the stator of its stator structure and common three-phase synchronous motor is similar, rotor is by axle, magnet steel and the plumbous mouse cage of casting constitute, it is characterized in that: magnet steel adopts tangential magnet steel body to place form, on the magnet steel body, have four symmetrically, six or eight T-shaped approximately grooves, center on the axle of rotor by the head of each T-slot, form four, six or eight magnet isolation tanks (air-gap is every magnetic), all leave certain clearance between each magnet isolation tank, this gap is little magnetic bridge, and the pole of T-slot partly is the magnet steel groove.
2, rare-earth triphase synchronous motor according to claim 1 is characterized in that: the width of magnet isolation tank is 3.5～6mm, and little magnetic bridge width is 2.5～5mm, and the magnet steel well width is 4～5.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93223840 CN2169944Y (en) | 1993-09-01 | 1993-09-01 | Rare-earth permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93223840 CN2169944Y (en) | 1993-09-01 | 1993-09-01 | Rare-earth permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2169944Y true CN2169944Y (en) | 1994-06-22 |
Family
ID=33802048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93223840 Expired - Fee Related CN2169944Y (en) | 1993-09-01 | 1993-09-01 | Rare-earth permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2169944Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105763002A (en) * | 2016-05-13 | 2016-07-13 | 山东理工大学 | Method for producing embedded tangential permanent magnet steel hub driving motor rotor |
| CN110299812A (en) * | 2019-07-08 | 2019-10-01 | 哈尔滨理工大学 | A kind of cryogenic pump permanent magnet motor structure |
-
1993
- 1993-09-01 CN CN 93223840 patent/CN2169944Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105763002A (en) * | 2016-05-13 | 2016-07-13 | 山东理工大学 | Method for producing embedded tangential permanent magnet steel hub driving motor rotor |
| CN110299812A (en) * | 2019-07-08 | 2019-10-01 | 哈尔滨理工大学 | A kind of cryogenic pump permanent magnet motor structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201122886Y (en) | Permanent magnet type self-starting DC motor rotor improvement structure | |
| CN102142755A (en) | V-shaped slot rotor of self-starting permanent magnet synchronous motor | |
| CN2245295Y (en) | Self-starting permasyn motor | |
| CN1205724C (en) | Triphase AC synchronous permanent-magnet motor and generator | |
| CN2169944Y (en) | Rare-earth permanent magnet synchronous motor | |
| CN208386261U (en) | A kind of permanent magnet direct driving motor | |
| CN202004553U (en) | V-shaped groove rotor of self-starting permanent magnet synchronous motor | |
| CN2185004Y (en) | Improvement for permanent synchronous motor roter | |
| CN114915066B (en) | Permanent magnet motor rotor | |
| CN2775926Y (en) | Novel self starting permanent magnetic synchronous motor | |
| CN212726610U (en) | Permanent magnet motor rotor structure | |
| CN2207656Y (en) | Permanent magnet generator rotor | |
| CN2618358Y (en) | High-efficient rare earth permanent magnetic synchronous motor | |
| CN2274837Y (en) | Structure of rotor of permanent megnet synchronous motor | |
| CN2321160Y (en) | Self-starting three-phase rare-earth permanent-magnet synchronous motor | |
| CN201621003U (en) | Permanent magnet wind power generator | |
| CN111030406A (en) | Super-high-efficiency low-voltage three-phase asynchronous motor | |
| CN212811407U (en) | Rotor core structure of asynchronous starting permanent magnet synchronous motor | |
| CN102487236A (en) | Rotor of permanent magnet synchronous motor | |
| CN2162031Y (en) | AC asynchronous motor | |
| CN220732454U (en) | Synchronous reluctance motor squirrel cage rotor | |
| CN220122661U (en) | Permanent magnet synchronous motor rotor structure | |
| CN220732457U (en) | High-speed carbon fiber rotor and motor | |
| CN201813292U (en) | Modularized permanent magnet synchronous generator | |
| CN2279030Y (en) | Self-start three-phase rare-earth permasyn motor |
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 |