CN107994698A - A kind of 2 magnetic poles are without controller self-starting permanent magnetism assist in synchronization reluctance motor - Google Patents
A kind of 2 magnetic poles are without controller self-starting permanent magnetism assist in synchronization reluctance motor Download PDFInfo
- Publication number
- CN107994698A CN107994698A CN201711091708.2A CN201711091708A CN107994698A CN 107994698 A CN107994698 A CN 107994698A CN 201711091708 A CN201711091708 A CN 201711091708A CN 107994698 A CN107994698 A CN 107994698A
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- Prior art keywords
- magnetic pole
- cage
- magnetic
- permanent magnet
- reluctance motor
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/02—Details of the magnetic circuit characterised by the magnetic material
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
A kind of 2 magnetic poles are related to synchronous magnetic resistance motor field without controller self-starting permanent magnetism assist in synchronization reluctance motor.At present, reluctance motor needs to configure nonshared control unit and could run, and needs substantial amounts of rare earth permanent-magnetic material, of high cost.The present invention includes engine base, drive end bearing bracket, rear end cap, fore bearing, fore bearing inner cover, rear bearing, rear internal bearing cover, line stator, rotor core, shaft, footing, fan blade, fan housing, rotor core is overrided to form by the core stamping that multi-disc has 2 magnetic poles, the center of core stamping is equipped with shaft hole, the magnetic resistance groove of 2 magnetic poles arranged radially including identical quantity, the centre of every magnetic resistance groove is equipped with fan-shaped permanent magnet；The magnetic resistance groove outer circumference that rotor core is located at core stamping is equipped with cast-in aluminum squirrel cage.The technical program, with reference to cast-in aluminum squirrel cage, reduces the use of permanent-magnet material, also can well be run in the case of no controller, significantly reduce motor cost by the way of permanent magnet synchronous motor and synchronous magnetic resistance motor are combined.
Description
Technical field
The present invention relates to synchronous magnetic resistance motor field, more particularly to a kind of 2 pole self-starting permanent magnetism assist in synchronization reluctance motors.
Background technology
At present, general reluctance motor needs to configure nonshared control unit and could run, no self-starting operation function, while right
In general permanent magnet synchronous motor, using substantial amounts of rare earth permanent-magnetic material, cause cost higher.
The content of the invention
The technical problem to be solved in the present invention and the technical assignment proposed are prior art to be improved with being improved,
A kind of 2 pole self-starting permanent magnetism assist in synchronization reluctance motors are provided, for the purpose of reducing cost.For this reason, the present invention takes following skill
Art scheme.
A kind of 2 magnetic poles are including engine base, drive end bearing bracket, rear end cap, preceding without controller self-starting permanent magnetism assist in synchronization reluctance motor
Bearing, fore bearing inner cover, rear bearing, rear internal bearing cover, line stator, rotor core, shaft, footing, fan blade, fan housing, it is described
Rotor core is overrided to form by the core stamping that multi-disc has 2 magnetic poles, and the center of core stamping is equipped with shaft hole, and described 2
The magnetic resistance groove of a magnetic pole arranged radially including identical quantity, the centre of every magnetic resistance groove is equipped with fan-shaped permanent magnet；It is described
Rotor core be located at the magnetic resistance groove outer circumference of core stamping and be equipped with cast-in aluminum squirrel cage.Using permanent magnet synchronous motor and synchronous reluctance
The mode that motor is combined, with reference to cast-in aluminum squirrel cage, reduces the use of permanent-magnet material, motor is in the case of no controller
It can well run and significantly reduce motor cost.
As further improving and supplementing to above-mentioned technical proposal, present invention additionally comprises following additional technical feature.
The centre of every magnetic resistance groove is equipped with the umbrella shape permanent magnet placing groove to match with permanent magnet, and the permanent magnet is placed
The both sides width of groove is more than the width with both sides magnetic resistance groove adjacent, forms lateral step.By lateral step, easy to permanent magnet
Embedded positioning, will not occur lateral displacement when motor operates because of centrifugal force.
The homonymy side of every permanent magnet placing groove is located on the sagittal plane of the same side.Pass through the homonymy side of different permanent magnets
Face is respectively positioned in same plane, makes the flux path uniformity of the permanent magnet of each magnetic pole good, motor is possessed preferable operation matter
Amount.
The permanent magnet is symmetrical on the radial direction medium line of magnetic pole.Symmetrical permanent magnet is easy to manufacture, and
And permanent magnet is symmetrical on the flux path on the basis of the radial direction medium line of magnetic pole, magnetic pole radial direction is not easy to deviate.
The external circumferential of magnetic resistance groove is arranged with cast-in aluminum squirrel cage groove on the core stamping, and the cast-in aluminum squirrel cage groove includes
Magnetic pole both wings cage grooves and pole end piece cage grooves, the flute profile of the magnetic pole both wings cage grooves and position are the nature of magnetic resistance groove
Extension, and separated in itself by core stamping between magnetic resistance groove and do not connected, pole end piece cage grooves are multiple arcs arrangement
Slot.Mouse cage slot structure is novel, enhances the magnetic resistance effect of non-flow direction between 2 magnetic poles.
The medial surface of the magnetic pole both wings cage grooves is the same radius periphery using shaft hole center as the center of circle, described
The medial surface of pole end piece cage grooves is more than the inner side radius surface of magnetic pole both wings cage grooves, magnetic pole with the distance at shaft hole center
The radial width of portion's cage grooves is less than 0.6 times of permanent magnet trough radial width.Pole end piece cage grooves are smaller in radial width, magnetic
The radial flux effect of pole is good.
The magnetic pole both wings cage grooves and magnetic resistance groove are left-right asymmetry on the basis of the radial direction medium line of magnetic pole；Described
Pole end piece cage grooves include cage grooves and end both sides cage grooves among end, and cage grooves are with magnetic pole among the end
Symmetrical on the basis of radial direction medium line, end both sides cage grooves are left-right asymmetry on the basis of the radial direction medium line of magnetic pole.Adopt
With unsymmetric structure, motor electromagnetic noise caused by torque pulsation and electric and magnetic oscillation problem can be effectively reduced, among end
The symmetry of cage grooves ensure that the magnetic flux radial direction of the permanent magnet of each magnetic pole.
The circular ring shape cage that the cast-in aluminum squirrel cage includes positioned at rotor core both ends connects two with through cast-in aluminum squirrel cage groove
The channel bar of cage is held, the medial surface of the circular ring shape cage aligns with the medial surface of magnetic pole both wings cage grooves, the circle
The lateral surface of annular cage aligns with the lateral surface of magnetic pole both wings cage grooves.Alignd by as far as possible more sides, when aluminium casting manufactures
Can reduce it is internal because be vented it is not smooth caused by gap the problems such as, lift the quality of cast-in aluminum squirrel cage.
The permanent magnet is iron oxygen permanent magnet.Compared with same power rotating speed grade rare-earth permanent-magnet electric machine, iron oxygen permanent magnet
There is no high temperature demagnetization risk, and easy weak magnetism speed expansion, Constant-power speed range are wider.
The fan blade is connected with the shaft of rear end cover back-end, and the fan housing is connected with engine base rear end.Fan blade rotates
To the effect of quick heat radiating, fan housing is used to protect fan blade and wind-guiding.
Beneficial effect：
1st, ferrite permanent-magnet materials are employed, it is therefore prevented that high temperature demagnetization risk, improves the security and quality stability of operation,
Easy weak magnetism speed expansion, Constant-power speed range are wider.
2nd, permanent-magnet material usage amount is few, produces under same torque and power situation, cost is greatly reduced.
3rd, the self-starting frame mode being combined using permanent magnet synchronous motor and synchronous magnetic resistance motor, power factor are significantly carried
Height, inverter capacity substantially reduce so that motor be not required controller in the case of well run, significantly reduce system into
This, improves operational efficiency.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Fig. 2 is rotor core structure schematic diagram of the present invention.
Fig. 3 is core stamping structure diagram of the present invention.
In figure：1- engine bases；2- drive end bearing brackets；3- rear end caps；4- fore bearings；5- fore bearing inner covers；Bearing after 6-；7- lines are determined
Son；8- rotor cores；9- shafts；10- footing；11- fan blades；12- fan housings；801- shaft holes；802- magnetic poles；803- magnetic resistance grooves；
804- permanent magnets；805- cast-in aluminum squirrel cages；806- permanent magnet placing grooves；807- magnetic pole both wings cage grooves；808- pole end piece mouse cages
Groove.
Embodiment
Technical scheme is described in further detail below in conjunction with Figure of description.
As shown in Figs. 1-3, a kind of 2 magnetic poles are without controller self-starting permanent magnetism assist in synchronization reluctance motor, including engine base 1, preceding
End cap 2, rear end cap 3, fore bearing 4, fore bearing inner cover 5, rear bearing 6, rear internal bearing cover, line stator 7, rotor core 8, shaft 9,
Footing 10, fan blade 11, fan housing 12, rotor core 8 are overrided to form for the core stamping of 2 magnetic poles 802, and the center of core stamping is set
There are the magnetic resistance groove 803 of 801,2 magnetic poles 802 of shaft hole arranged radially including identical quantity, the centre of every magnetic resistance groove 803
It is equipped with fan-shaped permanent magnet 804；803 outer circumference of magnetic resistance groove that rotor core 8 is located at core stamping is equipped with cast-in aluminum squirrel cage 805.
For the ease of fixed permanent magnet 804, the centre of every magnetic resistance groove 803 is equipped with the umbrella shape to match with permanent magnet 804
Permanent magnet placing groove 806, the both sides width of permanent magnet placing groove 806 are more than the width with 803 adjacent of both sides magnetic resistance groove, are formed
Lateral step.By lateral step, it is embedded in and positions easy to permanent magnet 804, side will not occur because of centrifugal force when motor operates
To displacement.
In order to obtain preferable flux path, the homonymy side of every permanent magnet placing groove 806 is located on same side plane.It is logical
The homonymy side for crossing different permanent magnets 804 is respectively positioned in same plane, makes the flux path one of the permanent magnet 804 of each magnetic pole 802
Cause property is good, motor is possessed preferable running quality.
In order to obtain preferable magnetic flux effect, permanent magnet 804 is symmetrical by the radial direction medium line of magnetic pole 802.Left and right is right
The permanent magnet 804 of title is easy to manufacture, and permanent magnet 804 is by the flux path symmetry on the basis of the radial direction medium line of magnetic pole 802
Preferably, 802 radial direction of magnetic pole is not easy to deviate, and magnetic flux effect is good.
In order to obtain preferable magnetic resistance effect, the external circumferential of magnetic resistance groove 803 is arranged with cast-in aluminum squirrel cage groove on core stamping,
Cast-in aluminum squirrel cage groove includes magnetic pole both wings cage grooves 807 and pole end piece cage grooves 808, the flute profile of magnetic pole both wings cage grooves 807 and
Position is the natural extension of magnetic resistance groove 803, and is separated in itself by core stamping between magnetic resistance groove 803 and do not connected, magnetic pole
Portion's cage grooves 808 are the slot of multiple arcs arrangement.Mouse cage slot structure is novel, enhances non-flow direction between 2 magnetic poles 802
Magnetic resistance effect.
In order to obtain more preferable magnetic flux effect, the medial surface of the magnetic pole both wings cage grooves 807 of shield is with 801 center of shaft hole
For the same radius periphery in the center of circle, the medial surface of pole end piece cage grooves 808 is more than magnetic pole two with the distance at 801 center of shaft hole
The inner side radius surface of wing cage grooves 807, the radial width of pole end piece cage grooves 808 is 806 radial width of permanent magnet placing groove
0.4 times.Pole end piece cage grooves 808 are smaller in radial width, make the radial flux effect of magnetic pole 802 more preferable.
In order to reduce electromagnetic noise, magnetic pole both wings cage grooves 807 and magnetic resistance groove 803 using the radial direction medium line of magnetic pole 802 as
Benchmark is left-right asymmetry；Pole end piece cage grooves 808 include cage grooves and end both sides cage grooves among end, end centre mouse
Cage groove is symmetrical on the basis of the radial direction medium line of magnetic pole 802, end both sides cage grooves using the radial direction medium line of magnetic pole 802 as
Benchmark is left-right asymmetry.Using unsymmetric structure, motor electromagnetic noise caused by torque pulsation and electromagnetism can be effectively reduced
Vibration problem, the symmetry of end centre cage grooves ensure that the magnetic flux radial direction of the permanent magnet 804 of each magnetic pole 802.
In order to lift the workmanship of cast-in aluminum squirrel cage 805, cast-in aluminum squirrel cage 805 includes the annulus positioned at 8 both ends of rotor core
Shape cage connects the channel bar of both ends cage, medial surface and the magnetic pole both wings cage grooves of circular ring shape cage with through cast-in aluminum squirrel cage groove
807 medial surface alignment, the lateral surface of circular ring shape cage align with the lateral surface of magnetic pole both wings cage grooves 807.By as far as possible more
Side alignment, when aluminium casting manufacture can reduce it is internal because be vented it is not smooth caused by gap the problems such as, lifting cast-in aluminum squirrel cage 805
Quality.
In order to avoid high temperature demagnetization risk, permanent magnet 804 is iron oxygen permanent magnet.With same power rotating speed grade rare earth permanent magnet electricity
Machine compares, and iron oxygen permanent magnet is there is no high temperature demagnetization risk, and easy weak magnetism speed expansion, Constant-power speed range are wider.
For quick heat radiating and protection fan blade 11, fan blade 11 is connected with the shaft 9 of 3 rear end of rear end cap, fan housing 12 and engine base 1
Rear end connects.Fan blade 11, which rotates, plays the role of quick heat radiating, and fan housing 12 is used to protect fan blade 11 and wind-guiding.
When rotor core 8 makes, first punching silicon-steel into core stamping, then a certain number of core stampings are folded
Pressure, carries out cast aluminium, and finally the embedded permanent magnet 804 in permanent magnet placing groove 806, is made rotor core 8, shaft 9 passes through rotor
The shaft hole 801 of iron core 8 is connected with rotor core 8, and it is overall to form rotor.
By the way of permanent magnet synchronous motor and synchronous magnetic resistance motor are combined, with reference to cast-in aluminum squirrel cage 805, rotor core 8
Reduce the use of permanent-magnet material, motor also can well be run in the case of no controller, significantly reduce motor cost.
A kind of 2 magnetic pole shown in figure 1 above -3 is of the invention without controller self-starting permanent magnetism assist in synchronization reluctance motor
Specific embodiment, has embodied substantive distinguishing features of the present invention and progress, can be according to actual use needs, in opening for the present invention
Under showing, carry out the equivalent modifications of shape, structure etc. to it, this programme protection domain row.
Claims (10)
1. a kind of 2 magnetic poles are without controller self-starting permanent magnetism assist in synchronization reluctance motor, including engine base（1）, drive end bearing bracket（2）, rear end
Lid（3）, fore bearing（4）, fore bearing inner cover（5）, rear bearing（6）, rear internal bearing cover, line stator（7）, rotor core（8）, shaft
（9）, footing（10）, fan blade（11）, fan housing（12）, the rotor core（8）There are 2 magnetic poles by multi-disc（802）Iron core
Punching is overrided to form, and the center of core stamping is equipped with shaft hole（801）, it is characterised in that：2 magnetic poles（802）Include identical
The magnetic resistance groove of the arranged radially of quantity（803）, every magnetic resistance groove（803）Centre be equipped with fan-shaped permanent magnet（804）；Described
Rotor core（8）Positioned at the magnetic resistance groove of core stamping（803）Outer circumference is equipped with cast-in aluminum squirrel cage（805）.
2. a kind of 2 magnetic pole according to claim 1 exists without controller self-starting permanent magnetism assist in synchronization reluctance motor, its feature
In：Every magnetic resistance groove（803）Centre be equipped with and permanent magnet（804）The umbrella shape permanent magnet placing groove of matching（806）, it is described
Permanent magnet placing groove（806）Both sides width be more than and both sides magnetic resistance groove（803）The width of adjacent, forms lateral step.
3. a kind of 2 magnetic pole according to claim 2 exists without controller self-starting permanent magnetism assist in synchronization reluctance motor, its feature
In：Every permanent magnet placing groove（806）Homonymy side be located on same sagittal plane.
4. a kind of 2 magnetic pole according to claim 1 exists without controller self-starting permanent magnetism assist in synchronization reluctance motor, its feature
In：The permanent magnet（804）On magnetic pole（802）Radial direction medium line it is symmetrical.
5. a kind of 2 magnetic pole according to claim 1 exists without controller self-starting permanent magnetism assist in synchronization reluctance motor, its feature
In：Magnetic resistance groove on the core stamping（803）External circumferential be arranged with cast-in aluminum squirrel cage groove, the cast-in aluminum squirrel cage groove includes
Magnetic pole both wings cage grooves（807）With pole end piece cage grooves（808）, the magnetic pole both wings cage grooves（807）Flute profile and position
It is set to magnetic resistance groove（803）Natural extension, and with magnetic resistance groove（803）Between separated in itself by core stamping and do not connect, magnetic pole
End cage grooves（808）For the slot of multiple arcs arrangement.
6. a kind of 2 magnetic pole according to claim 5 exists without controller self-starting permanent magnetism assist in synchronization reluctance motor, its feature
In：The magnetic pole both wings cage grooves（807）Medial surface be with shaft hole（801）Center is the same radius periphery in the center of circle,
The pole end piece cage grooves（808）Medial surface and shaft hole（801）The distance at center is more than magnetic pole both wings cage grooves
（807）Inner side radius surface, pole end piece cage grooves（808）Radial width be less than permanent magnet placing groove（806）Radial width
0.6 times.
7. a kind of 2 magnetic pole according to claim 5 exists without controller self-starting permanent magnetism assist in synchronization reluctance motor, its feature
In：The magnetic pole both wings cage grooves（807）With magnetic resistance groove（803）With magnetic pole（802）Radial direction medium line on the basis of left and right not
Symmetrically；The pole end piece cage grooves（808）Including cage grooves among end and end both sides cage grooves, in the end
Between cage grooves with magnetic pole（802）Radial direction medium line on the basis of it is symmetrical, end both sides cage grooves are with magnetic pole（802）Radial direction
It is left-right asymmetry on the basis of medium line.
8. a kind of 2 magnetic pole according to claim 1 exists without controller self-starting permanent magnetism assist in synchronization reluctance motor, its feature
In：The cast-in aluminum squirrel cage（805）Including positioned at rotor core（8）The circular ring shape cage at both ends is connected with through cast-in aluminum squirrel cage groove
The channel bar of both ends cage, medial surface and the magnetic pole both wings cage grooves of the circular ring shape cage（807）Medial surface alignment, institute
The lateral surface for the circular ring shape cage stated and magnetic pole both wings cage grooves（807）Lateral surface alignment.
9. a kind of 2 magnetic pole according to claim 1 exists without controller self-starting permanent magnetism assist in synchronization reluctance motor, its feature
In：The permanent magnet（804）For iron oxygen permanent magnet.
10. a kind of 2 magnetic pole according to claim 1 is without controller self-starting permanent magnetism assist in synchronization reluctance motor, its feature
It is：The fan blade（11）With rear end cap（3）The shaft of rear end（9）Connection, the fan housing（12）With engine base（1）Rear end connects
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711091708.2A CN107994698A (en) | 2017-11-08 | 2017-11-08 | A kind of 2 magnetic poles are without controller self-starting permanent magnetism assist in synchronization reluctance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711091708.2A CN107994698A (en) | 2017-11-08 | 2017-11-08 | A kind of 2 magnetic poles are without controller self-starting permanent magnetism assist in synchronization reluctance motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107994698A true CN107994698A (en) | 2018-05-04 |
Family
ID=62031201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711091708.2A Pending CN107994698A (en) | 2017-11-08 | 2017-11-08 | A kind of 2 magnetic poles are without controller self-starting permanent magnetism assist in synchronization reluctance motor |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347224A (en) * | 2017-12-14 | 2019-02-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Asynchronous starting synchronous magnetic resistance motor rotor, motor and compressor |
| CN111049296A (en) * | 2019-12-09 | 2020-04-21 | 珠海格力电器股份有限公司 | Motor rotor and reluctance motor |
| CN111614180A (en) * | 2020-06-24 | 2020-09-01 | 珠海格力电器股份有限公司 | Rotor structure of self-starting hybrid excitation permanent magnet auxiliary reluctance motor and motor |
| WO2020253196A1 (en) * | 2019-06-19 | 2020-12-24 | 珠海格力电器股份有限公司 | Direct-start synchronous reluctance electric motor rotor structure, electric motor and compressor |
| CN112701818A (en) * | 2020-12-17 | 2021-04-23 | 珠海格力电器股份有限公司 | Rotor structure, motor and rotor machining method |
| CN112713741A (en) * | 2020-12-21 | 2021-04-27 | 中车永济电机有限公司 | Self-starting three-phase synchronous reluctance motor |
| CN112968548A (en) * | 2021-01-26 | 2021-06-15 | 珠海格力电器股份有限公司 | Rotor assembly and self-starting permanent magnet synchronous reluctance motor |
| CN112968552A (en) * | 2021-01-26 | 2021-06-15 | 珠海格力电器股份有限公司 | Rotor assembly and self-starting permanent magnet synchronous reluctance motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109347224A (en) * | 2017-12-14 | 2019-02-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Asynchronous starting synchronous magnetic resistance motor rotor, motor and compressor |
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| WO2020253196A1 (en) * | 2019-06-19 | 2020-12-24 | 珠海格力电器股份有限公司 | Direct-start synchronous reluctance electric motor rotor structure, electric motor and compressor |
| CN111049296A (en) * | 2019-12-09 | 2020-04-21 | 珠海格力电器股份有限公司 | Motor rotor and reluctance motor |
| CN111614180A (en) * | 2020-06-24 | 2020-09-01 | 珠海格力电器股份有限公司 | Rotor structure of self-starting hybrid excitation permanent magnet auxiliary reluctance motor and motor |
| CN112701818A (en) * | 2020-12-17 | 2021-04-23 | 珠海格力电器股份有限公司 | Rotor structure, motor and rotor machining method |
| CN112713741A (en) * | 2020-12-21 | 2021-04-27 | 中车永济电机有限公司 | Self-starting three-phase synchronous reluctance motor |
| CN112968548A (en) * | 2021-01-26 | 2021-06-15 | 珠海格力电器股份有限公司 | Rotor assembly and self-starting permanent magnet synchronous reluctance motor |
| CN112968552A (en) * | 2021-01-26 | 2021-06-15 | 珠海格力电器股份有限公司 | Rotor assembly and self-starting permanent magnet synchronous reluctance motor |
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Address after: 312300 economic development zone, Shangyu District, Zhejiang, Shaoxing Applicant after: Wolong Electric Drive Group Co., Ltd. Address before: 312300 economic development zone, Shangyu District, Zhejiang, Shaoxing Applicant before: Wolong Electric Group Co., Ltd. |
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Application publication date: 20180504 |
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