CN203482076U - Magnetic field modulated magnetic gear decelerator - Google Patents
Magnetic field modulated magnetic gear decelerator Download PDFInfo
- Publication number
- CN203482076U CN203482076U CN201320633797.XU CN201320633797U CN203482076U CN 203482076 U CN203482076 U CN 203482076U CN 201320633797 U CN201320633797 U CN 201320633797U CN 203482076 U CN203482076 U CN 203482076U
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- China
- Prior art keywords
- permanent magnet
- rotor
- magnetic field
- external rotor
- magnetic
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The utility model relates to a magnetic field modulated magnetic gear decelerator, particularly relates to an electric power steering system decelerator of an electric vehicle, and belongs to the technical field of the electric automobile steering system. A technical solution lies in that an external rotor (1) and an internal rotor (3) have the same center of the circle; the external rotor (1) is connected with a steering shaft (19); the internal rotor (3) is connected with an output shaft of a power motor (14); an inner wall of the external rotor (1) and an outer wall of the internal rotor (3) are provided with a permanent magnet A (2) and a permanent magnet (B) respectively; a magnet adjustment ring (8) is disposed between the permanent magnet A (2) and the permanent magnet (B); an external air gap (7) is disposed between the permanent magnet A (2) and the permanent magnet (B); and an internal air gap (6) is disposed between the permanent magnet A (2) and the permanent magnet (B). The magnetic field modulated magnetic gear decelerator has the beneficial effects that the magnetic field modulated magnetic gear decelerator is in no need of lubrication, does not self-lock, has no friction loss and vibration, and has high power efficiency and good safety performance, due to magnetic field transmission and torque.
Description
Technical field
The utility model relates to a kind of magnetic field modulation magnetic gear deceleration device, and especially electric power steering system of electric automobile deceleration device, belongs to electric automobile steering technical field.
Background technology
Electric automobile is that the automobile of power source is provided by storage battery completely, can realize zero discharge, can solve the pollution problem of automobile to environment.Electric boosting steering system is provided by motor, and power-assisted size determines by electronic control unit, and fail safe is higher.But the deceleration device that is applied at present electric boosting steering system mainly contains planetary gear type and Worm-gear type.Planetary gear type reduction device takes up room greatly, and complex structure and efficiency are low; Turbine and worm formula deceleration device has reverse self-locking, need to install electromagnetically operated valve additional, and the adhesive of electromagnetically operated valve and disconnection need to expend the regular hour, therefore inevitably bring turn-around delay and hysteresis, can not guarantee followability and the fail safe of system, easily cause the accident, have certain danger.
Utility model content
The utility model object is to provide a kind of magnetic field modulation magnetic gear deceleration device, utilizes magnetic field to transmit power and moment of torsion, and without lubricated, not self-locking, solves the problem existing in background technology.
The technical solution of the utility model is:
A kind of magnetic field modulation magnetic gear deceleration device, comprise external rotor, permanent magnet A, internal rotor, adjustable magnetic ring and permanent magnet B, external rotor and internal rotor concentric, external rotor is connected with steering spindle, internal rotor is connected with assist motor output shaft, on the inwall of external rotor and on the outer wall of internal rotor, is respectively equipped with permanent magnet A and permanent magnet B, between permanent magnet A and permanent magnet B, is provided with adjustable magnetic ring, between permanent magnet A and adjustable magnetic ring, be provided with outer air gap, between permanent magnet B and adjustable magnetic ring, be provided with internal layer air gap.
Described adjustable magnetic ring alternately consists of high permeability material and non-magnet material, plays the effect in the inside and outside magnetic field of modulation.
Described external rotor is low speed rotor, and internal rotor is high speed rotor.External rotor has more magnetic pole, and internal rotor has less magnetic pole.
Adopt the utility model, driven by motor internal rotor rotates, and external rotor provides power-assisted for steering.In the situation that motor breaks down, be equivalent to internal rotor and no longer rotate, do not affect the rotation of external rotor, steering wheel can drive the rotation of steering spindle to realize manual steering, being equivalent to, in the idle situation of assist motor, does not affect manual steering wheel and realizes mechanical steering.External rotor with load torque while being greater than the breakdown torque that magnetic gear can transmit, the rotating speed of external rotor drops to zero very soon, does not affect the normal operation of motor and magnetic field modulation magnetic gear internal rotor.
The beneficial effects of the utility model: utilize magnetic field to transmit power and moment of torsion, without lubricated, not self-locking, without frictional wear and vibration, power-assisted efficiency is high, and security performance is good.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation;
Fig. 2 is that the utility model is used view;
In figure: external rotor 1, permanent magnet A2, internal rotor 3, non-magnet material 4, high permeability material 5, internal layer air gap 6, outer air gap 7, adjustable magnetic ring 8, permanent magnet B9, torque sensor 10, rack and pinion steering gear 11, steered wheel 12, magnetic field modulation magnetic gear deceleration device 13, assist motor 14, electronic control unit 15, vehicle speed sensor signal 16, torque sensor signal 17, steering wheel 18, steering spindle 19.
Embodiment
Below in conjunction with accompanying drawing, by example, the utility model is described in further detail.
With reference to accompanying drawing 1, a kind of magnetic field modulation magnetic gear deceleration device, comprise external rotor 1, permanent magnet A2, internal rotor 3, adjustable magnetic ring 8 and permanent magnet B9, external rotor 1 and internal rotor 3 concentrics, external rotor is low speed rotor, there is more magnetic pole, internal rotor is that high speed rotor has less magnetic pole, external rotor 1 is connected with steering spindle 19, internal rotor 3 is connected with assist motor 14 output shafts, on the inwall of external rotor 1 and on the outer wall of internal rotor 3, be respectively equipped with permanent magnet A2 and permanent magnet B9, between permanent magnet A2 and permanent magnet B9, be provided with adjustable magnetic ring 8, between permanent magnet A2 and adjustable magnetic ring 8, be provided with outer air gap 7, between permanent magnet B9 and adjustable magnetic ring 8, be provided with internal layer air gap 6, described adjustable magnetic ring 8 alternately consists of high permeability material 5 and non-magnet material 4.Adjustable magnetic ring 8 maintains static, and plays the effect in the inside and outside magnetic field of modulation, has modulated the magnetic field that on inner and outer Rotator, permanent magnet produces, harmonic field and the opposite epitrochanterian permanent magnet interaction that the magnetic field that makes to modulate has, transmission force and moment.
With reference to accompanying drawing 2, magnetic field modulation magnetic gear deceleration device also comprises torque sensor 10, rack and pinion steering gear 11, steered wheel 12, assist motor 14, electronic control unit 15, steering wheel 18 and steering spindle 19, internal rotor 3 is connected with the output shaft of assist motor 14, external rotor 1 is connected with rack and pinion steering gear 11, rack and pinion steering gear is connected with steering spindle 19 by torque sensor 10 is rear, and steering spindle is connected with steering wheel 18; Assist motor 14 is connected with electronic control unit 15 respectively with torque sensor 10; Rack and pinion steering gear 11 connects steered wheel 12.
Use procedure: with reference to accompanying drawing 2, when pilot control steering wheel turns to, torque sensor and vehicle speed sensor act on driver respectively torque sensor signal, the vehicle speed sensor signal input electronic control unit ECU on steering wheel, ECU carries out computing to input signal, determine power-assisted mode and inquire about power-assisted form, by built-in power-assisted curve, determined the size and Orientation of target current, thereby control electric current and the direction of motor, motor passes to steering spindle through reducing gear by booster torquemoment, thereby provides suitable power-assisted for driver.
Claims (4)
1. a magnetic field modulation magnetic gear deceleration device, it is characterized in that comprising external rotor (1), permanent magnet A(2), internal rotor (3), adjustable magnetic ring (8) and permanent magnet B(9), external rotor (1) and internal rotor (3) concentric, external rotor (1) is connected with steering spindle (19), internal rotor (3) is connected with assist motor (14) output shaft, on the inwall of external rotor (1) and on the outer wall of internal rotor (3), be respectively equipped with permanent magnet A(2) and permanent magnet B(9), permanent magnet A(2) and permanent magnet B(9) between be provided with adjustable magnetic ring (8), permanent magnet A(2) and between adjustable magnetic ring (8), be provided with outer air gap (7), permanent magnet B(9) and between adjustable magnetic ring (8), be provided with internal layer air gap (6).
2. magnetic field modulation magnetic gear deceleration device according to claim 1, is characterized in that described adjustable magnetic ring (8) alternately consists of high permeability material (5) and non-magnet material (4).
3. magnetic field modulation magnetic gear deceleration device according to claim 1, is characterized in that described external rotor (1) is low speed rotor, and internal rotor (3) is high speed rotor.
4. magnetic field modulation magnetic gear deceleration device according to claim 1 and 2, it is characterized in that: form and also comprise torque sensor (10), rack and pinion steering gear (11), steered wheel (12), assist motor (14), electronic control unit (15), steering wheel (18) and steering spindle (19), internal rotor (3) is connected with the output shaft of assist motor (14), external rotor (1) is connected with rack and pinion steering gear (11), rack and pinion steering gear is connected with steering spindle (19) by after torque sensor (10), steering spindle is connected with steering wheel (18), assist motor (14) is connected with electronic control unit (15) respectively with torque sensor (10), rack and pinion steering gear (11) connects steered wheel (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320633797.XU CN203482076U (en) | 2013-10-15 | 2013-10-15 | Magnetic field modulated magnetic gear decelerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320633797.XU CN203482076U (en) | 2013-10-15 | 2013-10-15 | Magnetic field modulated magnetic gear decelerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203482076U true CN203482076U (en) | 2014-03-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320633797.XU Expired - Fee Related CN203482076U (en) | 2013-10-15 | 2013-10-15 | Magnetic field modulated magnetic gear decelerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203482076U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065242A (en) * | 2014-06-27 | 2014-09-24 | 南京艾凌节能技术有限公司 | Integrated permanent magnet variable speed reducer |
| CN104401389A (en) * | 2014-10-28 | 2015-03-11 | 南京林业大学 | Permanent-magnetic clutch electric power-assisted steering system |
| CN105634193A (en) * | 2016-02-29 | 2016-06-01 | 东南大学 | Magnetic gear based rotating-linear variable speed motor |
| CN106184354A (en) * | 2016-07-27 | 2016-12-07 | 重庆长安汽车股份有限公司 | A kind of electric direction converter of vehicle |
| CN106341031A (en) * | 2016-09-13 | 2017-01-18 | 江苏大学 | Magnetic-field modulated-type magnetic screw |
| WO2021189595A1 (en) * | 2020-03-23 | 2021-09-30 | 江苏大学 | Multi-degree-of-freedom magnetic field modulation-type magnetic screw actuator and integrated design method therefor |
-
2013
- 2013-10-15 CN CN201320633797.XU patent/CN203482076U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104065242A (en) * | 2014-06-27 | 2014-09-24 | 南京艾凌节能技术有限公司 | Integrated permanent magnet variable speed reducer |
| CN104401389A (en) * | 2014-10-28 | 2015-03-11 | 南京林业大学 | Permanent-magnetic clutch electric power-assisted steering system |
| CN105634193A (en) * | 2016-02-29 | 2016-06-01 | 东南大学 | Magnetic gear based rotating-linear variable speed motor |
| CN106184354A (en) * | 2016-07-27 | 2016-12-07 | 重庆长安汽车股份有限公司 | A kind of electric direction converter of vehicle |
| CN106341031A (en) * | 2016-09-13 | 2017-01-18 | 江苏大学 | Magnetic-field modulated-type magnetic screw |
| CN106341031B (en) * | 2016-09-13 | 2018-12-14 | 江苏大学 | A kind of magnetic-field modulation-type magnetic Screw |
| WO2021189595A1 (en) * | 2020-03-23 | 2021-09-30 | 江苏大学 | Multi-degree-of-freedom magnetic field modulation-type magnetic screw actuator and integrated design method therefor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20161015 |