CN101610010A - High efficiency energy-saving rare earth permanent-magnet synchronous motor - Google Patents
High efficiency energy-saving rare earth permanent-magnet synchronous motor Download PDFInfo
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- CN101610010A CN101610010A CNA2009101157377A CN200910115737A CN101610010A CN 101610010 A CN101610010 A CN 101610010A CN A2009101157377 A CNA2009101157377 A CN A2009101157377A CN 200910115737 A CN200910115737 A CN 200910115737A CN 101610010 A CN101610010 A CN 101610010A
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- permanent magnet
- rare earth
- high efficiency
- rotor core
- synchronous motor
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Abstract
The present invention relates to motor technology, particularly a kind of high efficiency energy-saving rare earth permanent-magnet synchronous motor.Rotor core of rare earth permanent magnet synchronous motor generally adopts rotor punching to be overrided to form at present.The present invention takes a kind of high efficiency energy-saving rare earth permanent-magnet synchronous motor, comprise stator, rotor, rotor comprises main shaft, permanent magnet, the cast steel rotor core, end plate, slot wedge, cushion block and filler strip, between main shaft and permanent magnet, be connected every the magnetic lining, permanent magnet is placed in the cast steel rotor core permanent magnet trough, fix by slot wedge and end plate, hot jacket compounding technique scheme is adopted in main shaft and cast steel rotor core, its starting torque is big, overload capacity is strong, compare its overall efficiency with the induction motor of same size and improve about 5%, power factor improves more than 10%, and average economize on electricity can reach 15%-30%.
Description
Technical field
The present invention relates to motor technology, particularly a kind of high efficiency energy-saving rare earth permanent-magnet synchronous motor.
Background technology
Rotor core of rare earth permanent magnet synchronous motor generally adopts rotor punching to be overrided to form at present.Because adopt the motor of laminated rotor core, starting current is bigger, the impact to electrical network during starting is bigger, even can't start, and is also higher to the capacity requirement of power supply unit, and motor overall efficiency, power factor, power savings are still not ideal enough.
Summary of the invention
The object of the invention provides that a kind of starting torque is big, overload capacity is strong, compare its overall efficiency with the induction motor of same size improves about 5%, power factor improves more than 10%, average economize on electricity can reach 15%-30%, efficient is height when nominal load not only, and still keeps the high efficiency energy-saving rare earth permanent-magnet synchronous motor of high value when underloading.
Technical solution of the present invention: a kind of high efficiency energy-saving rare earth permanent-magnet synchronous motor, comprise stator, rotor, rotor comprises main shaft, permanent magnet, cast steel rotor core, end plate, slot wedge, cushion block and filler strip, between main shaft and permanent magnet, be connected every the magnetic lining, permanent magnet is placed in the cast steel rotor core permanent magnet trough, fixed by slot wedge and end plate, main shaft adopts hot jacket to cooperate with the cast steel rotor core;
Rotor magnetic circuit structural adopts built-in tangential formula structure, and the magnetic flux under a pole span is provided by adjacent two magnetic pole parallel connections;
Lamination is adopted in stator core, and coil adopts the double-deck short distance winding of star connection.
The present invention is the substitute products of Y series motor, and the Y series motor mounting of structure installation dimension and same specification is measure-alike, and it is very convenient to substitute; Can be in order to substitute asynchronous motor than 2 power grades of its big 1 ∽ (or big seat No.); Have efficient height, power factor height, starting torque is big, overload capacity is strong; Compare its overall efficiency with the induction motor of same size and improve about 5%, power factor improves more than 10%, and average economize on electricity can reach 15%-30%; Efficient is height when nominal load not only, and still keeps high value when underloading; Can reduce line loss, save compensation condenser and its renewal and maintenance cost, simultaneously, will there be the electrical network latent capacity about half to excavate out, and be equivalent to the mains supply ability and be doubled, this part electric energy can be used to enlarged reproduction, for the grassroot project power supply, saved the newly-built expense of sending transformation facility, greatly improved the utilance of electrical network, reduced the electrical network expense of increasing capacity, its economic benefit and social benefit are very remarkable.
Description of drawings
Fig. 1 is a rotor portion structural representation of the present invention.
Fig. 2 is Fig. 1 left view (A-A cuts open and shows).
Fig. 3 is a cast steel rotor core structural representation of the present invention.
1 cushion block among the figure, 2 slot wedges, 3 permanent magnets, 4 filler strips, 5 cast steel rotor cores, 6 main shafts, 7 end plates, 8 every the magnetic lining, 9 cast steel pieces, the S permanent magnet South Pole, the N permanent magnet arctic.
Embodiment
Cast steel rotor core of the present invention forms by the cast steel piece with every magnetic lining assembly welding, makes motor under the prerequisite that guarantees bigger starting torque, reaches the purpose that reduces starting current, thereby improves the starting performance of motor.Rotor magnetic circuit structural adopts built-in tangential formula structure, its advantage is that a magnetic flux under the pole span is provided by adjacent two magnetic pole parallel connections, can obtain bigger every utmost point magnetic flux and help improving power of electric motor density and the output-constant operation scope of expansion motor.Rotor constitutes (see figure 1) by main shaft, permanent magnet, rotor core, end plate, slot wedge, cushion block and filler strip etc., main shaft adopts hot jacket to cooperate with rotor core, in order not make in the motor magnetic leakage factor of permanent magnet excessive and cause the permanent magnetic material utilance low excessively, between main shaft and magnetic pole, adopt and reduce leakage field every the magnetic lining, permanent magnet is placed in the rotor core permanent magnet trough, is fixed by slot wedge and end plate.
Stator and conventional induction motor are basic identical, constitute by support, iron core and winding, and the iron loss when stator core adopts lamination to move to reduce motor, coil adopts the double-deck short distance winding of star connection.
The present invention replaces the traditional electrical excitation and the energy-saving efficient motor made with rare earth permanent magnet, have reliable, volume is little, In light weight, the distinguishing feature such as loss is little, efficient and power factor height.
Claims (3)
1, a kind of high efficiency energy-saving rare earth permanent-magnet synchronous motor, comprise stator, rotor, it is characterized in that: rotor comprises main shaft, permanent magnet, cast steel rotor core, end plate, slot wedge, cushion block and filler strip, between main shaft and permanent magnet, be connected every the magnetic lining, permanent magnet is placed in the cast steel rotor core permanent magnet trough, fixed by slot wedge and end plate, main shaft adopts hot jacket to cooperate with the cast steel rotor core.
2, according to the described a kind of high efficiency energy-saving rare earth permanent-magnet synchronous motor of claim 1, it is characterized in that: rotor magnetic circuit structural adopts built-in tangential formula structure, and the magnetic flux under a pole span is provided by adjacent two magnetic pole parallel connections.
3, according to claim 1 or 2 described a kind of high efficiency energy-saving rare earth permanent-magnet synchronous motors, it is characterized in that: lamination is adopted in stator core, and coil adopts the double-deck short distance winding of star connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101157377A CN101610010A (en) | 2009-07-18 | 2009-07-18 | High efficiency energy-saving rare earth permanent-magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009101157377A CN101610010A (en) | 2009-07-18 | 2009-07-18 | High efficiency energy-saving rare earth permanent-magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101610010A true CN101610010A (en) | 2009-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009101157377A Pending CN101610010A (en) | 2009-07-18 | 2009-07-18 | High efficiency energy-saving rare earth permanent-magnet synchronous motor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064646A (en) * | 2010-12-30 | 2011-05-18 | 大庆大丰油田科技有限公司 | Low-speed direct-drive permanent magnet synchronous submersible motor |
| CN102255451A (en) * | 2010-05-18 | 2011-11-23 | 大连华控工业装备有限公司 | Multipolar serial flux-weakening motor |
| CN102611228A (en) * | 2012-03-20 | 2012-07-25 | 中科盛创（青岛）电气有限公司 | Magnetic steel end fastening structure of permanent magnet motor rotor |
| CN109149819A (en) * | 2018-11-05 | 2019-01-04 | 北京英孚莱特动力技术有限公司 | A kind of permanent magnetism solid rotor, manufacturing method and asynchronous starting permanent magnet synchronous motor |
-
2009
- 2009-07-18 CN CNA2009101157377A patent/CN101610010A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102255451A (en) * | 2010-05-18 | 2011-11-23 | 大连华控工业装备有限公司 | Multipolar serial flux-weakening motor |
| CN102064646A (en) * | 2010-12-30 | 2011-05-18 | 大庆大丰油田科技有限公司 | Low-speed direct-drive permanent magnet synchronous submersible motor |
| CN102611228A (en) * | 2012-03-20 | 2012-07-25 | 中科盛创（青岛）电气有限公司 | Magnetic steel end fastening structure of permanent magnet motor rotor |
| CN109149819A (en) * | 2018-11-05 | 2019-01-04 | 北京英孚莱特动力技术有限公司 | A kind of permanent magnetism solid rotor, manufacturing method and asynchronous starting permanent magnet synchronous motor |
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Open date: 20091223 |