CN103078458B - Stator-free brushless dual-rotor outer ring permanent magnet synchronous motor with rotating controller - Google Patents
Stator-free brushless dual-rotor outer ring permanent magnet synchronous motor with rotating controller Download PDFInfo
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- CN103078458B CN103078458B CN201210581103.2A CN201210581103A CN103078458B CN 103078458 B CN103078458 B CN 103078458B CN 201210581103 A CN201210581103 A CN 201210581103A CN 103078458 B CN103078458 B CN 103078458B
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Abstract
The invention discloses a stator-free brushless dual-rotor outer ring permanent magnet synchronous motor with a rotating controller. An outer rotor comprises an outer rotary shaft, the inner end of the outer rotary shaft is arranged in an enclosure, permanent magnets are arranged at the inner end of the outer rotary shaft in a staggered manner along the circumferential direction, an end cover is arranged at the end part of the inner end of the outer rotary shaft, and the outer end of the outer rotary shaft extends out of a first end of the enclosure; an inner rotor comprises an inner rotary shaft, the inner end of the inner rotary shaft is arranged in the outer rotor, an inner rotor core and an inner rotor winding embedded in the inner rotor core are arranged at the inner end of the inner rotary shaft, the outer end of the inner rotary shaft is arranged on the exterior of the outer rotor, and the end part of the outer end of the inner rotary shaft extends out of a second end of the enclosure; and an inverter is arranged at the outer end of the inner rotary shaft in the enclosure, close to the end part of the inner end of the outer rotary shaft, an inductor structure is arranged at the outer end of the inner rotary shaft in the enclosure, close to the second end of the enclosure, and a rectifier is arranged between the inverter and the inductor structure. The stator-free brushless dual-rotor outer ring permanent magnet synchronous motor with the rotating controller is simple in structure, breaks through the limitation of only one rotary shaft, omits the stator part and is applicable to various occasions.
Description
Technical field
The present invention relates to technical field of motors, specifically a kind of controller rotate without stator brushless birotor outer ring permanent magnet synchronous motor.
Background technology
Double-rotor machine has two rotating speed rotors independent of each other and rotating shaft, twin shaft drive can be realized, therefore have broad application prospects in multiple occasion, the electric buncher and modern machine numerical control rotating platform etc. of the power drive system of such as hybrid vehicle, automobile and wind-driven generator.
The public dual rotor permanent magnetic motor sent out is nested together by outer-rotor permanent magnet motor and an internal rotor permanent-magnetic motor and is shared the New-type electric machine of a stator both at home and abroad at present.But because it can regard two independently common electric machines as, so two controllers must be had, make controlling organization more complicated, and for motor body, because structure also exists stationary part, therefore volume is larger.Its inverter is at motor extenal fixation simultaneously, and the connection of inverter output end and input end of motor substantially all adopts the connected mode of three brushes, and the increase of brush number can cause the increase of wear-out failure probability.
Summary of the invention
The present invention is directed to above shortcomings in prior art, provide a kind of controller rotate without stator brushless birotor outer ring permanent magnet synchronous motor.
The present invention is achieved by the following technical solutions.
A kind of controller rotate without stator brushless birotor outer ring permanent magnet synchronous motor, comprise casing, external rotor and internal rotor, described external rotor comprises outer shaft, the inner of described outer shaft is arranged on casing internal, the inner of outer shaft is along the circumferential direction crisscross arranged permanent magnet, the inner end of described outer shaft is provided with end cap, and the outer end of described outer shaft is stretched out outside the first end of casing; Described internal rotor comprises interior rotating shaft, the inner of described interior rotating shaft arranges external rotor inside, the inner of interior rotating shaft is provided with internal rotor iron core with permanent magnet corresponding section and embeds the internal rotor winding of internal rotor iron core, the outer end of described interior rotating shaft is arranged on the outside of external rotor, and the end, outer end of described interior rotating shaft is stretched out outside the second end relative with casing first end; The outer end of rotating shaft in described casing is provided with inverter near the inner end of outer shaft, the outer end of rotating shaft in described casing is provided with sensor structure near casing second end place, between described inverter and sensor structure, is provided with rectifier.
Described sensor structure comprises and is arranged on inductor housing in casing second end and the induction coil be arranged in inductor housing and squirrel-cage aluminum strip structure, also comprises storage battery, wherein:
-storage battery, is directly connected with induction coil;
-induction coil, is fixed on inductor housing, and after passing into direct current by storage battery, the magnetic direction that upper and lower two groups of coils produce is just in time contrary, and all spatially keeps vertical with the outer end of interior rotating shaft;
-squirrel-cage aluminum strip structure, its upper and lower two-part induced magnetism direction is consistent, and the outer end on the outer end being fixed on interior rotating shaft and with interior rotating shaft rotates, and constantly magnetic force is answered in the generation of cutting induction coil.Or,
Described sensor structure comprises the inductor housing be arranged in casing second end and the induction permanent magnet be arranged in inductor housing and squirrel-cage aluminum strip structure, wherein:
-induction permanent magnet, is fixed on inductor housing, and the magnetic direction of generation is just in time contrary, and all spatially keeps vertical with the outer end of interior rotating shaft;
-squirrel-cage aluminum strip structure, its upper and lower two-part induced magnetism direction is consistent, and the outer end on the outer end being fixed on interior rotating shaft and with interior rotating shaft rotates, constantly cutting induction permanent magnet generation induced magnetism.
The outer end that described rectifier is fixed on interior rotating shaft rotates together with the outer end of interior rotating shaft, and the induced magnetism of described sensor structure becomes direct current through rectifier, described direct current is consistent all the time by the voltage direction after rectifier rectification.
The induced magnetism crossed through rectifier rectification is transformed into required three-phase alternating current by described inverter, for the speed discrepancy of the electromagnetic torque and internal rotor and external rotor that regulate motor.
Described internal rotor iron core is annular, and its external peripheral surface has several grooves vertically, and the open centre line of several grooves described is uniformly distributed around interior rotating shaft, and internal rotor winding embeds respectively in described groove and forms three-phase windings.
The outer end of described interior rotating shaft is rotationally connected by bearing and casing between internal rotor-casing, and the inner of described interior rotating shaft is rotationally connected by bearing and outer shaft between internal rotor-external rotor, forms internal rotor and independently rotates; Described external rotor is rotationally connected by outer rotor bearing and casing, and its end cap is connected with interior axis of rotation by bearing with end cover, forms external rotor and independently rotates.
Described interior rotating shaft is power shaft, is connected for turning with outer buttons and accepts driving, and correspondingly, described outer shaft is output shaft.
Described inverter be fixedly connected with the outer end of interior rotating shaft and together with rotate, inverter output end is by three-phase cable and internal rotor winding switching.
Slight air gap is provided with between the inner end of described interior rotating shaft and outer shaft.
Controller provided by the invention rotate without stator brushless birotor outer ring permanent magnet synchronous motor, only be provided with external rotor and internal rotor, eliminate the stator be fixed on casing, therefore motor makes complexity and obtains very large reduction, and motor body volume energy is reduced.
Simultaneously, inverter is placed in motor case by the present invention, fix with interior rotating shaft, along with interior rotating shaft rotates together, storage battery is connected with the induction coil in inductor, and producing induced electromotive force by squirrel-cage aluminum strip structure, is inverter input dc power through rectifier, therefore motor of the present invention does not need brush and slip ring, and the double-rotor machine not being present in general three brushes is at operation stability and Problems existing in useful life.
In addition, because the present invention only needs a controller, control more convenient.The induced electromotive force crossed by rectifier rectification is converted by controller, the three-phase alternating current control voltage needed for generation, directly gives the internal rotor winding of motor of the present invention, reaches the object controlling motor output speeds and Driving Torque with the change of controlling magnetic field; Because the power output of inverter is only relevant with electromagnetic torque with the speed discrepancy of inner and outer rotors, even if inner and outer rotors rotating speed is all very high but power is very little, therefore inverter module volume is little, lightweight, and the impact for interior axis of rotation inertia is very little.
Accompanying drawing explanation
By reading the detailed description done non-limiting example with reference to the following drawings, other features, objects and advantages of the present invention will become more obvious:
Fig. 1 is the structural representation of the embodiment of the present invention 1;
Fig. 2 is the structural representation of the embodiment of the present invention 2;
In figure, 1 is casing; 2 is outer rotor bearing; 3 is outer shaft; 4 is interior rotating shaft; 5 is bearing between internal rotor-external rotor; 6 is permanent magnet; 7 is internal rotor iron core; 8 is internal rotor winding; 9 is end cap; 10 is bearing with end cover; 11 is induction coil; 12 is rectifier; 13 is storage battery; 14 is inverter; 15 is bearing between internal rotor-casing; 16 is squirrel-cage aluminum strip structure; 17 is inductor housing.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
Embodiment 1
As shown in Figure 1, the present embodiment comprises: casing 1, external rotor and internal rotor, external rotor comprises outer shaft 3, the inner of outer shaft 3 is arranged on casing 1 inside, the inner of outer shaft 3 is along the circumferential direction crisscross arranged permanent magnet 6, the inner end of outer shaft 3 is provided with end cap 9, and the outer end of outer shaft 3 is stretched out outside the first end of casing 1; Internal rotor comprises interior rotating shaft 4, the inner of interior rotating shaft 4 arranges external rotor inside, the inner of interior rotating shaft 4 is provided with internal rotor iron core 7 with permanent magnet 6 corresponding section and embeds the internal rotor winding 8 of internal rotor iron core 7, the outer end of interior rotating shaft 4 is arranged on the outside of external rotor, and the end, outer end of interior rotating shaft 4 is stretched out outside the second end relative with casing first end; The outer end of rotating shaft 4 in casing 1 is provided with inverter 14 near the inner end of outer shaft 3, the outer end of rotating shaft 4 in casing 1 is provided with sensor structure near casing 1 second end place, between inverter 14 and sensor structure, is provided with rectifier 12.
Further, sensor structure comprises and is arranged on inductor housing 17 in casing 1 second end and the induction coil 11 be arranged in inductor housing 17 and squirrel-cage aluminum strip structure 16, also comprises storage battery 13, wherein:
-storage battery 13, is directly connected with induction coil 11;
-induction coil 11, is fixed on inductor housing 17, and after passing into direct current by storage battery 13, the magnetic direction that upper and lower two groups of coils produce is just in time contrary, and all spatially keeps vertical with the outer end of interior rotating shaft 4;
-squirrel-cage aluminum strip structure 16, its upper and lower two-part induced magnetism direction is consistent, and the outer end on the outer end being fixed on interior rotating shaft 4 and with interior rotating shaft 4 rotates, and constantly magnetic force is answered in the generation of cutting induction coil 11.
Further, the outer end that rectifier 12 is fixed on interior rotating shaft 4 rotates together with the outer end of interior rotating shaft 4, and the induced magnetism of sensor structure becomes direct current through rectifier 12, direct current is consistent all the time by the voltage direction after rectifier 12 rectification.
Further, internal rotor iron core 7 is annular, and its external peripheral surface has several grooves vertically, and the open centre line of several grooves described is uniformly distributed around interior rotating shaft, and internal rotor winding 8 embeds respectively in described groove and forms three-phase windings.
Further, the outer end of interior rotating shaft 4 is rotationally connected by bearing between internal rotor-casing 15 and casing 1, and the inner of interior rotating shaft 4 is rotationally connected by bearing between internal rotor-external rotor 5 and outer shaft 3, thus formation internal rotor independently rotates; External rotor is rotationally connected by outer rotor bearing 2 and casing 1, and its end cap 9 is rotationally connected by bearing with end cover 10 and interior rotating shaft 4, thus formation external rotor independently rotates.
Further, interior rotating shaft 4 is power shaft, is connected for turning with outer buttons and accepts driving, and correspondingly, outer shaft 3 is output shaft.
Further, inverter 14 be fixedly connected with the outer end of interior rotating shaft 4 and together with rotate, inverter 14 output is connected with internal rotor winding 8 by three-phase cable.
Further, the induced magnetism rectified through rectifier 12 is transformed into required three-phase alternating current by inverter 14, for the speed discrepancy of the electromagnetic torque and internal rotor and external rotor that regulate motor.
Further, slight air gap is provided with between the inner end of interior rotating shaft 4 and outer shaft 3.
The operation principle of the present embodiment is: storage battery 13 produces fixing magnetic field by induction coil 11, squirrel-cage aluminum strip structure 16 can produce induced electromotive force by cutting magnetic line along with interior rotating shaft 4 is rotated, for inverter 14 provides direct current after rectifier 12 rectification, the motor running condition (Driving Torque or tachometer value) that the output information of inverter 14 needed for motor (load torque or tachometer value) and sensor feedback are returned and the direct voltage that rectifier 12 provides, three-phase alternating current needed for generation, deliver to internal rotor winding 8, produce rotating magnetic field in the windings, with permanent magnet 6 magnetic field interaction, thus realize motor speedup (increasing square) or the control overflow of slow down (subtracting square).
The concrete control method of the present embodiment is as follows:
When requiring outer shaft 3 rotating speed equal with interior rotating shaft 4 rotating speed, by control inverter 14, rectifier rectification is obtained DC power conversion and becomes three-phase electricity, but the frequency keeping electric current is 0, thus the frequency making internal rotor winding 8 electric current is 0, the electromagnetic torque produced under regulating its size to make air-gap field effect and outer shaft 3 torque balance.
When requiring outer shaft 3 rotating speed to be greater than interior rotating shaft 4 rotating speed, by control inverter 14, rectifier 12 rectification is obtained DC power conversion and becomes three-phase electricity, be applied to the current phasor of internal rotor winding 8 one and the equidirectional rotation of interior rotating shaft 4, control the size of this electric current, the electromagnetic torque produced under making the effect of air-gap field and outer shaft 3 torque balance, control the speed discrepancy that mechanical separator speed corresponding to current phasor equals to input outer shaft 3, the rotating speed namely controlling excitation current vector corresponding is equal with outer shaft 3 rotating speed with interior rotating shaft 4 rotating speed sum.
When requiring outer shaft 3 rotating speed to be less than interior rotating shaft 4 rotating speed, by control inverter 14, rectifier 12 rectification is obtained DC power conversion and becomes three-phase electricity, be applied to the current phasor of internal rotor winding 8 one and interior rotating shaft 4 opposite spin, control the size of this electric current, the electromagnetic torque produced under making the effect of air-gap field and outer shaft 3 torque balance, control the speed discrepancy that mechanical separator speed corresponding to current phasor equals to input outer shaft 3, the rotating speed namely controlling excitation current vector corresponding is equal with interior rotating shaft 4 rotating speed with outer shaft 3 rotating speed sum.
Embodiment 2
Embodiment 2 is the change case of embodiment 1.
As shown in Figure 2, the present embodiment is on the basis of the scheme of embodiment 1, the difference of itself and embodiment 1 is, sensor structure comprises the inductor housing 17 be arranged in casing second end and the induction permanent magnet 11 be arranged in inductor housing and squirrel-cage aluminum strip structure 16, wherein:
-induction permanent magnet 11, is fixed on inductor housing 17, and the magnetic direction of generation is just in time contrary, and all spatially keeps vertical with the outer end of interior rotating shaft;
-squirrel-cage aluminum strip structure 16, its upper and lower two-part induced magnetism direction is consistent, and the outer end on the outer end being fixed on interior rotating shaft 4 and with interior rotating shaft 4 rotates, and constantly cutting is responded to permanent magnet 11 and produced induced magnetism.
The execution mode of other parts of the present embodiment, operation principle and control method are identical with embodiment 1.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (16)
1. one kind without stator brushless birotor outer ring permanent magnet synchronous motor, comprise casing, external rotor and internal rotor, it is characterized in that, described external rotor comprises outer shaft, the inner of described outer shaft is arranged on casing internal, the inner of outer shaft is along the circumferential direction crisscross arranged permanent magnet, and the inner end of described outer shaft is provided with end cap, and the outer end of described outer shaft is stretched out outside the first end of casing; Described internal rotor comprises interior rotating shaft, the inner of described interior rotating shaft arranges external rotor inside, the inner of interior rotating shaft is provided with internal rotor iron core with permanent magnet corresponding section and embeds the internal rotor winding of internal rotor iron core, the outer end of described interior rotating shaft is arranged on the outside of external rotor, and the end, outer end of described interior rotating shaft is stretched out outside the second end relative with casing first end; The outer end of rotating shaft in described casing is provided with inverter near the inner end of outer shaft, the outer end of rotating shaft in described casing is provided with sensor structure near casing second end place, between described inverter and sensor structure, is provided with rectifier;
Described sensor structure comprises and is arranged on inductor housing in casing second end and the induction coil be arranged in inductor housing and squirrel-cage aluminum strip structure, also comprises storage battery, wherein:
Storage battery, is directly connected with induction coil;
Induction coil, is fixed on inductor housing, and after passing into direct current by storage battery, the magnetic direction that upper and lower two groups of coils produce is just in time contrary, and all spatially keeps vertical with the outer end of interior rotating shaft;
Squirrel-cage aluminum strip structure, its upper and lower two-part induced magnetism direction is consistent, and the outer end on the outer end being fixed on interior rotating shaft and with interior rotating shaft rotates, constantly cutting induction coil generation induced magnetism.
2. according to claim 1 without stator brushless birotor outer ring permanent magnet synchronous motor, it is characterized in that, the outer end that described rectifier is fixed on interior rotating shaft rotates together with the outer end of interior rotating shaft, the induced magnetism of described sensor structure becomes direct current through rectifier, and described direct current is consistent all the time by the voltage direction after rectifier rectification.
3. according to claim 2 without stator brushless birotor outer ring permanent magnet synchronous motor, it is characterized in that, the induced magnetism crossed through rectifier rectification is transformed into required three-phase alternating current by described inverter, for the speed discrepancy of the electromagnetic torque and internal rotor and external rotor that regulate motor.
4. according to claim 1 without stator brushless birotor outer ring permanent magnet synchronous motor, it is characterized in that, described internal rotor iron core is annular, its external peripheral surface has several grooves vertically, the open centre line of several grooves described is uniformly distributed around interior rotating shaft, and internal rotor winding embeds respectively in described groove and forms three-phase windings.
5. according to claim 1 without stator brushless birotor outer ring permanent magnet synchronous motor, it is characterized in that, the outer end of described interior rotating shaft is rotationally connected by bearing and casing between internal rotor-casing, the inner of described interior rotating shaft is rotationally connected by bearing and outer shaft between internal rotor-external rotor, forms internal rotor and independently rotates; Described external rotor is rotationally connected by outer rotor bearing and casing, and its end cap is connected with interior axis of rotation by bearing with end cover, forms external rotor and independently rotates.
6. according to claim 4ly it is characterized in that without stator brushless birotor outer ring permanent magnet synchronous motor, described interior rotating shaft is power shaft, is connected for turning with outer buttons and accepts driving, and correspondingly, described outer shaft is output shaft.
7. according to claim 1ly to it is characterized in that without stator brushless birotor outer ring permanent magnet synchronous motor, described inverter be fixedly connected with the outer end of interior rotating shaft and together with rotate, inverter output end is by three-phase cable and internal rotor winding switching.
8. according to claim 1ly to it is characterized in that without stator brushless birotor outer ring permanent magnet synchronous motor, between the inner end of described interior rotating shaft and outer shaft, be provided with air gap.
9. one kind without stator brushless birotor outer ring permanent magnet synchronous motor, comprise casing, external rotor and internal rotor, it is characterized in that, described external rotor comprises outer shaft, the inner of described outer shaft is arranged on casing internal, the inner of outer shaft is along the circumferential direction crisscross arranged permanent magnet, and the inner end of described outer shaft is provided with end cap, and the outer end of described outer shaft is stretched out outside the first end of casing; Described internal rotor comprises interior rotating shaft, the inner of described interior rotating shaft arranges external rotor inside, the inner of interior rotating shaft is provided with internal rotor iron core with permanent magnet corresponding section and embeds the internal rotor winding of internal rotor iron core, the outer end of described interior rotating shaft is arranged on the outside of external rotor, and the end, outer end of described interior rotating shaft is stretched out outside the second end relative with casing first end; The outer end of rotating shaft in described casing is provided with inverter near the inner end of outer shaft, the outer end of rotating shaft in described casing is provided with sensor structure near casing second end place, between described inverter and sensor structure, is provided with rectifier;
Described sensor structure comprises the inductor housing be arranged in casing second end and the induction permanent magnet be arranged in inductor housing and squirrel-cage aluminum strip structure, wherein:
Induction permanent magnet, is fixed on inductor housing, and the magnetic direction of generation is just in time contrary, and all spatially keeps vertical with the outer end of interior rotating shaft;
Squirrel-cage aluminum strip structure, its upper and lower two-part induced magnetism direction is consistent, and the outer end on the outer end being fixed on interior rotating shaft and with interior rotating shaft rotates, constantly cutting induction permanent magnet generation induced magnetism.
10. according to claim 9 without stator brushless birotor outer ring permanent magnet synchronous motor, it is characterized in that, the outer end that described rectifier is fixed on interior rotating shaft rotates together with the outer end of interior rotating shaft, the induced magnetism of described sensor structure becomes direct current through rectifier, and described direct current is consistent all the time by the voltage direction after rectifier rectification.
11. is according to claim 10 without stator brushless birotor outer ring permanent magnet synchronous motor, it is characterized in that, the induced magnetism crossed through rectifier rectification is transformed into required three-phase alternating current by described inverter, for the speed discrepancy of the electromagnetic torque and internal rotor and external rotor that regulate motor.
12. is according to claim 9 without stator brushless birotor outer ring permanent magnet synchronous motor, it is characterized in that, described internal rotor iron core is annular, its external peripheral surface has several grooves vertically, the open centre line of several grooves described is uniformly distributed around interior rotating shaft, and internal rotor winding embeds respectively in described groove and forms three-phase windings.
13. is according to claim 9 without stator brushless birotor outer ring permanent magnet synchronous motor, it is characterized in that, the outer end of described interior rotating shaft is rotationally connected by bearing and casing between internal rotor-casing, the inner of described interior rotating shaft is rotationally connected by bearing and outer shaft between internal rotor external rotor, forms internal rotor and independently rotates; Described external rotor is rotationally connected by outer rotor bearing and casing, and its end cap is connected with interior axis of rotation by bearing with end cover, forms external rotor and independently rotates.
14. according to claim 12ly is characterized in that without stator brushless birotor outer ring permanent magnet synchronous motor, and described interior rotating shaft is power shaft, is connected for turning with outer buttons and accepts driving, and correspondingly, described outer shaft is output shaft.
15. according to claim 9ly is characterized in that without stator brushless birotor outer ring permanent magnet synchronous motor, described inverter be fixedly connected with the outer end of interior rotating shaft and together with rotate, inverter output end is by three-phase cable and internal rotor winding switching.
16. according to claim 9ly is characterized in that without stator brushless birotor outer ring permanent magnet synchronous motor, are provided with air gap between the inner end of described interior rotating shaft and outer shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210581103.2A CN103078458B (en) | 2012-12-27 | 2012-12-27 | Stator-free brushless dual-rotor outer ring permanent magnet synchronous motor with rotating controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210581103.2A CN103078458B (en) | 2012-12-27 | 2012-12-27 | Stator-free brushless dual-rotor outer ring permanent magnet synchronous motor with rotating controller |
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| Publication Number | Publication Date |
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| CN103078458A CN103078458A (en) | 2013-05-01 |
| CN103078458B true CN103078458B (en) | 2015-03-11 |
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| CN201210581103.2A Expired - Fee Related CN103078458B (en) | 2012-12-27 | 2012-12-27 | Stator-free brushless dual-rotor outer ring permanent magnet synchronous motor with rotating controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021242117A1 (en) * | 2020-05-29 | 2021-12-02 | Alva Industries As | Dual propeller counter-rotating aerial propulsion system |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104638855A (en) * | 2014-12-20 | 2015-05-20 | 重庆德马变频电机研发制造有限公司 | Integrated series motor driving device |
| US10330754B2 (en) * | 2017-01-03 | 2019-06-25 | General Electric Company | Stator-less electric motor for a magnetic resonance imaging system and methods thereof |
| CN116328877B (en) * | 2023-05-29 | 2023-08-25 | 昆明云盘山农牧科技有限公司 | Phosphate rock crushing equipment with screening and transferring functions |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7466053B1 (en) * | 2008-04-10 | 2008-12-16 | Vladimir Radev | Dual-rotor electric traction motor |
| CN201224318Y (en) * | 2008-04-19 | 2009-04-22 | 杜文达 | Electronic control electric magnetic differential drive axle |
| CN102158026A (en) * | 2011-04-02 | 2011-08-17 | 浙江钱江摩托股份有限公司 | Dual-rotor motor and hybrid vehicle taking dual-rotor motor as power |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100236849A1 (en) * | 2008-05-02 | 2010-09-23 | Wishart Randell J | Brushless counter-rotating electric apparatus and system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7466053B1 (en) * | 2008-04-10 | 2008-12-16 | Vladimir Radev | Dual-rotor electric traction motor |
| CN201224318Y (en) * | 2008-04-19 | 2009-04-22 | 杜文达 | Electronic control electric magnetic differential drive axle |
| CN102158026A (en) * | 2011-04-02 | 2011-08-17 | 浙江钱江摩托股份有限公司 | Dual-rotor motor and hybrid vehicle taking dual-rotor motor as power |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021242117A1 (en) * | 2020-05-29 | 2021-12-02 | Alva Industries As | Dual propeller counter-rotating aerial propulsion system |
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Effective date of registration: 20190415 Address after: No. 90, Lane 768, Ruili Road, Minhang District, Shanghai, 200240 Co-patentee after: Shanghai Yiji New Energy Technology Co.,Ltd. Patentee after: Zhang Jianlong Address before: No. 950 Jianchuan Road, Minhang District, Shanghai, 200240 Patentee before: SHANGHAI YIJIE POWER TECHNOLOGY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20211227 |