CN104578658A - Permanent magnetic direct-current brushless motor of biased mounting structure - Google Patents
Permanent magnetic direct-current brushless motor of biased mounting structure Download PDFInfo
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- CN104578658A CN104578658A CN201510052618.7A CN201510052618A CN104578658A CN 104578658 A CN104578658 A CN 104578658A CN 201510052618 A CN201510052618 A CN 201510052618A CN 104578658 A CN104578658 A CN 104578658A
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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
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Abstract
A permanent magnetic direct-current brushless motor of a biased mounting structure comprises an end cap, a rotor assembly, a stator assembly and a motor shaft. The end cap is positioned on two sides of the rotor assembly and composed of a fixed end cap and a drum brake end cap, the rotor assembly is composed of a wheel rim, a magnetic conducting ring in left biased mounting, a fixing ring and a permanent magnet and mounted with the stator assembly in a matched manner, the stator assembly is composed of an iron core and a through groove used for mounting of a winding, silicon steel sheets are arranged on the outer circumference of the iron core and are of a stacked structure, a fixing shaft sleeve is arranged at the center of the iron core in a right biased manner, a fixing support is arranged on the outer circumferential side of the fixing shaft sleeve, the fixing shaft sleeve and the motor shaft are in interference fit, and a knurled structure is arranged at a position where the motor shaft and the fixing shaft sleeve are connected. A motor structure is designed in an optimized manner, and a biased mounting mode is adopted, so that diameter size of the stator assembly and the rotor assembly is increased, key performance parameters like torque and efficiency of the motor are enhanced, and load-carrying capacity of a whole vehicle is improved.
Description
Technical field
The present invention and electric vehicle motor technical field, specifically the present invention be more particularly directed to a kind of electric vehicle non-brush permanent-magnet DC motor of setoff installation structure.
Background technology
Motor is one of core component of electric motor car, and the performance quality of electric vehicle motor directly affects the fail safe of electric motor car, operability, reliability and cycle in useful life.Consider the easy to use of electric motor car entirety, the tire of usual electric motor car is relatively little, motor wheel rim outside dimension is subject to the impact of tire installation dimension, built-in magnetic guiding loop size and field frame assembly size is caused to be restricted, the common permanent magnetic brushless of existing electric vehicle adopts symmetrical structure to install usually, its rotor assembly and field frame assembly are placed in the middle part of motor usually, motor radius of gyration is caused to be affected, motor is as the driving core of electric motor car, when electric motor car runs on mountain area or heavy grade road, very easily there is the situation of heavy load or overload, thus motor is reduced useful life, failure rate is high.The common permanent magnetic brushless of existing electric vehicle runs constantly under rainy day or dusty environment simultaneously, because temperature in continuous service process raises, motor internal air pressure is caused to increase, if there is quenching situation in motor, draught head is there is inside and outside causing, external moisture or dust can be made to be entered motor internal by motor micro gap, thus cause electrical machine insulation performance to reduce, affect motor useful life.
Summary of the invention
The object of the invention is to solve above-mentioned deficiency, there is provided a kind of electric vehicle non-brush permanent-magnet DC motor of setoff installation structure, reasonably optimizing structure space, by offset mounting structure feature, increase inner installation dimension, improve the critical performance parameters such as the torque of motor, efficiency.
Technical problem solved by the invention can realize by the following technical solutions:
A kind of electric vehicle non-brush permanent-magnet DC motor of setoff installation structure, comprise end cap, rotor assembly, field frame assembly and motor shaft, it is characterized in that: described end cap is positioned at described rotor assembly both sides, described end cap is formed by fixing end cap and rousing end cap of stopping, described rotor assembly is by being positioned at peripheral wheel rim, described wheel rim inner periphery is that left avertence puts the magnetic guiding loop be welded and fixed, be positioned at the retainer ring on the right side of described magnetic guiding loop and be mounted on described magnetic guiding loop inner periphery permanent magnet form, described rotor assembly internal engagement installs described field frame assembly, described field frame assembly is made up of iron core and the groove that is positioned at described iron core circumferencial direction, described groove is for installing winding, described iron core excircle place is provided with silicon steel sheet, described silicon steel sheet is closed assembly structure, described core center is that right-hand offset is provided with a fixed hub, described fixed hub outer circumferential sides is provided with fixed support, described fixed hub and described motor shaft are interference fit, described motor shaft and described fixed hub connecting portion are provided with knurling structure.
Described fixing end cap is positioned on the left of described magnetic guiding loop, and described fixing end cap adopts silica gel sealing to coordinate with between described magnetic guiding loop, and described drum end cap of stopping is positioned on the right side of described retainer ring, and described drum is stopped between end cap with described retainer ring and adopted silica gel sealing to coordinate.
Be provided with bottom land in the middle part of described wheel rim, described bottom land is asymmetric fillet structure.
Described magnetic guiding loop adopts high permeability material to make, and described magnetic guiding loop preferably adopts No. 8 carbon steel, and described magnetic guiding loop is circular ring, and described magnetic guiding loop and described fixing end cap are connected and fixed by trip bolt.
Described retainer ring adopts mild steel material to make, and described retainer ring is circular ring, and described retainer ring and described drum end cap of stopping is connected and fixed by trip bolt.
Described permanent magnet adopts neodymium-iron-boron magnetic material to make, and preferably adopt N38H neodymium-iron-boron magnetic material to make, the preferred number of poles of described permanent magnet is 48 poles or 60 poles.
Described groove groove number preferably adopts 54 grooves, and described groove groove area is 75 ~ 90mm
2.
Described fixed support is right-hand offset structure, and described fixed support is asymmetric bifurcated triangular structure, and bottom described fixed support, two ends are fastenedly connected described fixed hub, and described fixed support adopts cold rolling carbon steel.
Described motor shaft runs through and connects described field frame assembly and described end cap central position, and be provided with oil sealing and bearing between described motor shaft and described end cap, described oil sealing is positioned at outside described bearing.
Be provided with one outside described motor shaft and described fixing end cap junction tiltedly to bore a hole, described oblique perforation cooperation runs through connection one cable, is provided with a breather pipe in described cable.
The present invention compared with prior art has following outstanding advantages and effect: the present invention adopts offset mounting structure, by optimizing inner space, solve when not changing tire installation dimension, increase the internal diameter size of motor magnetic guiding loop, thus Motor Stator Assembly size is increased further, enhance the critical performance parameters such as the torque of motor, efficiency, improve the load-carrying ability of car load, usually arrange breather pipe structure makes motor cavity have voltage regulation result simultaneously, ensure that the waterproof of motor and dust-proof effect, improve the useful life of motor.The preferred suitable dimensions of structure of the present invention is electrical salf-walking automobile-used 12 cun, 14 cun, 16 cun and 18 cun and electric motorcycle automobile-used 8 cun, 10 cun, 12 cun and 13 cun.
The high-lighting structural advantages that the present invention is concrete and beneficial effect are: the present invention is by optimizing at the bottom of rim gutter, adopt asymmetric fillet structure, avoid wheel rim and winding interferes phenomenon, optimize interior spatial structure simultaneously, facilitate the setoff installation of magnetic guiding loop, set up retainer ring device simultaneously, form a dicyclo robust structure with magnetic guiding loop, end cap can effectively be fixed, and the combination of twin nuclei simultaneously can increase the impact strength of wheel rim.End cap coordinates with adopting silica gel sealing between magnetic guiding loop and retainer ring, adds the sealing of motor cavity, can improve the dustproof and waterproof function of motor, makes motor internal have better running environment.Magnetic guiding loop adopts high permeability material to make, preferred employing No. 8 carbon steel, effectively can ensure that magnetic guiding loop has high permeability and certain intensity and toughness, permanent magnet is mounted on magnetic guiding loop inwall, N38H neodymium-iron-boron magnetic material is adopted to make, this material is rare earth permanent-magnetic material, has excellent magnetic property and mechanical property.The pole groove proportioning of rotor assembly and field frame assembly selects 48 pole 54 grooves and 60 pole 54 grooves, and these two kinds of proportioning structures have complete machine high efficiency and complete machine high torque (HT) respectively.Fixed support is asymmetric bifurcated triangular structure, right-hand offset structure makes two ends bottom fixed support be fastenedly connected fixed hub, improve firm effect, fixed hub is that right-hand offset is fixed, improve overall stability, facilitate integrally-built installation simultaneously, fixed hub inside connects motor shaft, completed by interference fit and be fastenedly connected, motor shaft is being provided with knurling structure with fixed hub connecting portion simultaneously, can fastening effect be improved, between motor shaft and end cap, be provided with oil sealing and bearing, can complete the firm of motor shaft and sealing.Be provided with one outside motor shaft tiltedly to bore a hole, tiltedly perforation is used for connection cable, and be provided with a breather pipe in cable, this breather pipe can make motor cavity form a stable-pressure device, ensure that the waterproof of motor and dust-proof effect.
Described in comprehensive, present invention improves over the mounting structure of conventional motors, by optimizing rim structure and adopting offset mounting structure, set up retainer ring, form dicyclo robust structure, to make rational planning for the installation dimension space of motor, improved the defect that electric vehicle motor is installed, improve the power performance of electric motor car.
The detailed description and obtaining that feature of the present invention can consult the graphic and following better execution mode of this case is well understood to.
Accompanying drawing explanation
Fig. 1 is the cross section structural representation of the embodiment of the present invention;
Fig. 2 is the cable mounting structure schematic diagram of the embodiment of the present invention;
Fig. 3 is the iron core overall structure schematic diagram of the embodiment of the present invention;
Fig. 4 is the aluminium alloy wheel rim structural representation of the embodiment of the present invention.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
As shown in Figure 1 to Figure 3, the invention provides a kind of electric vehicle non-brush permanent-magnet DC motor of setoff installation structure, comprise end cap 1, rotor assembly 2, field frame assembly 3 and motor shaft 4, end cap 1 is positioned at described rotor assembly 2 both sides, end cap 1 is made up of fixing end cap 11 and bulging end cap 12 of stopping, fixing end cap 11 is positioned on the left of magnetic guiding loop 23, fixing adopts silica gel sealing to coordinate between end cap 11 with magnetic guiding loop 23, improve the sealing effectiveness of motor, rousing end cap 12 of stopping is positioned on the right side of retainer ring 25, drum is stopped between end cap 12 with retainer ring 25 and is adopted silica gel sealing to coordinate, improve the sealing effectiveness of motor, rotor assembly 2 is by being positioned at peripheral wheel rim 21, wheel rim 21 inner periphery is that left avertence puts the magnetic guiding loop 23 be welded and fixed, the permanent magnet 22 being positioned at the retainer ring 25 on the right side of magnetic guiding loop 23 and being mounted on magnetic guiding loop 23 inner periphery is formed, wheel rim 21, magnetic guiding loop 23 and retainer ring 25 are combined to form wheel hub structure, bottom land 24 is provided with in the middle part of wheel rim 21, bottom land 24 is in asymmetric fillet structure, asymmetric fillet structure adopts small one and large one two different fillets to connect and compose, great circle edged surface is positioned at left side, wheel rim 21 adopts steel punching press, winding is made, by optimizing bottom land 24 structure of wheel rim 21, avoid wheel rim 41 and interfere phenomenon with winding 33, optimize interior spatial structure simultaneously, facilitate the setoff installation of magnetic guiding loop 23, magnetic guiding loop 23 adopts high permeability material to make, magnetic guiding loop 23 preferably adopts No. 8 carbon steel, pass through annealing in process, magnetic guiding loop 23 mechanical property can be improved, effective guarantee magnetic guiding loop 23 has high permeability and certain intensity and toughness, magnetic guiding loop 23 is in circular ring, magnetic guiding loop 23 and fixing end cap 11 are connected and fixed by trip bolt 13, retainer ring 25 adopts mild steel material to make, retainer ring 25 is in circular ring, retainer ring 25 is connected and fixed (not shown in the diagram) by trip bolt 13 with bulging end cap 12 of stopping, retainer ring 25 and magnetic guiding loop 23 form a dicyclo robust structure, end cap 1 can effectively be fixed, the combination of twin nuclei simultaneously can increase the impact strength of wheel rim 21, permanent magnet 22 adopts N38H neodymium-iron-boron magnetic material to make, this material is rare earth permanent-magnetic material, there is excellent magnetic property and mechanical property, rotor assembly 2 internal engagement installs field frame assembly 3, field frame assembly 3 is made up of iron core 31 and the groove 36 that is positioned at iron core 31 circumferencial direction, groove 36 groove number preferably adopts 54 grooves, groove 36 groove area is 75 ~ 90mm
2, groove logical 36 is for installing winding 33, iron core 31 excircle place is provided with silicon steel sheet 35, silicon steel sheet 35 is in closed assembly structure, silicon steel material preferably selects 35W360, temper is carried out after closed assembly completes, crystal grain thinning, remove stress, obtain stable crystal structure, the magnetization of silicon steel sheet 35 is made to obtain maximum recovery, iron core 31 center is that right-hand offset is provided with a fixed hub 32, fixed hub 32 outer circumferential sides is provided with fixed support 34, fixed support 34 is in right-hand offset structure, fixed support 34 is in asymmetric bifurcated triangular structure, right-hand offset structure makes two ends bottom fixed support 34 be fastenedly connected fixed hub 32, fixed hub 32 is fixed in right-hand offset, improve overall stability, facilitate integrally-built installation simultaneously, improve firm effect, fixed support 32 adopts cold rolling carbon steel, fixed hub 32 and motor shaft 4 are interference fit, motor shaft 4 and fixed hub 32 connecting portion are provided with knurling structure, fastening effect can be improved, motor shaft 4 runs through connecting stator assembly 3 and end cap 1 centre, motor shaft 4 selects quenched and tempered steel, preferred employing 40Cr, pass through modifier treatment, improve mechanical property, oil sealing 41 and bearing 42 is provided with between motor shaft 4 and end cap 1, can complete the firm of motor shaft and sealing, oil sealing 41 is positioned at outside bearing 42, be provided with one outside motor shaft 4 and fixing end cap 11 junction and tiltedly bore a hole 43, oblique perforation 43 coordinates and runs through connection one cable 44, a breather pipe 45 is provided with in cable 44, this breather pipe 45 can make motor cavity form a stable-pressure device, ensure that the waterproof of motor and dust-proof effect.
Embodiment 1
According to above-mentioned overall structure, the preferred pole groove proportioning of rotor assembly of the present invention and field frame assembly selects 48 pole 54 grooves, utilize 48 pole permanent magnets, motor iron loss can be reduced, obtain excellent whole efficiency, select 54 best groove structures in conjunction with winding current density and iron core maximum field density, groove face area adopts 75 ~ 90mm
2, this structure proportioning improves the whole efficiency of motor, has the feature of high-speed type.
Embodiment 2
According to above-mentioned overall structure, the preferred pole groove proportioning of rotor assembly of the present invention and field frame assembly selects 60 pole 54 grooves, utilize 60 pole permanent magnets, motor location torque can be reduced, obtain excellent overall torque effect, select 54 best groove structures in conjunction with winding current density and iron core maximum field density, groove face area adopts 75 ~ 90mm
2, this structure proportioning improves the whole efficiency of motor, has the feature of torque type.
Embodiment 3
According to above-mentioned overall structure, as shown in Figure 4, wheel rim 21 of the present invention can adopt aluminium alloy to cast and make, aluminium alloy wheel rim 5 structure is adopted to replace original wheel rim 21, 54 are provided with at the bottom of aluminum alloy trough equally in the middle part of aluminium alloy wheel rim 5 structure, in asymmetric fillet structure, in small one and large one two fillet structures, a connected unit 51 is provided with on the left of aluminium alloy wheel rim 5, the location and installation that fixing end cap positioning spigot 52 can complete fixing end cap 11 is provided with on the left of connected unit 51 inner surface, fix end cap 11 to be completed by trip bolt 53 with connected unit 52 left surface and be fastenedly connected simultaneously, connected unit 51 inner surface connection magnetic guiding loop 23, a clamping bench 55 is formed at small round corner inwall, this right side, clamping bench 55 surface is provided with rouses end cap positioning spigot 56 of stopping, drum is stopped after end cap 12 completes location and is fastenedly connected by trip bolt 53 and clamping bench 55 right edge, this structure is equally applicable to the setoff installation of rotor assembly 2 and field frame assembly 1, utilize fixing end cap positioning spigot 52 and bulging end cap positioning spigot 56 of stopping to complete end cap 1 to be located by connecting, fastening process is completed by trip bolt 53, the built-in installation in same structure.
Comprehensively described above, the present invention adopts offset mounting structure, by optimizing inner space, solve when not changing tire installation dimension, increase the internal diameter size of motor magnetic guiding loop, thus Motor Stator Assembly size is increased further, enhance the torque of motor, the critical performance parameters such as efficiency, improve the load-carrying ability of car load, usually arrange breather pipe structure makes motor cavity have voltage regulation result simultaneously, ensure that the waterproof of motor and dust-proof effect, improve the useful life of motor, the variation simultaneously adding motor size is selected, wherein be applicable to electric bicycle vehicle electric machine and be of a size of 12 cun, 14 cun, 16 cun and 18 cun, be applicable to battery-operated motor cycle automobile motor and be of a size of 8 cun, 10 cun, 12 cun and 13 cun, above-mentioned motor size is preferred size range, the operation performance of electric bicycle and battery-operated motor cycle is further improved.
Present invention improves over the mounting structure of conventional motors, by optimizing rim structure and adopting offset mounting structure, set up retainer ring, form dicyclo robust structure, to make rational planning for the installation dimension space of motor, improved the defect that electric vehicle motor is installed, improve the power performance of electric motor car.
As known by the technical knowledge, the present invention can be realized by other the embodiment not departing from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, is not only.Within the scope of the present invention all or be all included in the invention being equal to the change in scope of the present invention.
Claims (10)
1. the electric vehicle non-brush permanent-magnet DC motor of a setoff installation structure, comprise end cap (1), rotor assembly (2), field frame assembly (3) and motor shaft (4), it is characterized in that: described end cap (1) is positioned at described rotor assembly (2) both sides, described end cap (1) is made up of fixing end cap (11) and bulging end cap (12) of stopping, described rotor assembly (2) is by being positioned at peripheral wheel rim (21), described wheel rim (21) inner periphery is that left avertence puts the magnetic guiding loop (23) be welded and fixed, the retainer ring (25) being positioned at described magnetic guiding loop (23) right side and the permanent magnet (22) being mounted on described magnetic guiding loop (23) inner periphery are formed, described rotor assembly (2) internal engagement installs described field frame assembly (3), described field frame assembly (3) is made up of iron core (31) and the groove (36) that is positioned at described iron core (31) circumferencial direction, described groove (36) is for installing winding (33), described iron core (31) excircle place is provided with silicon steel sheet (35), described silicon steel sheet (35) is in closed assembly structure, described iron core (31) center is that right-hand offset is provided with a fixed hub (32), described fixed hub (32) outer circumferential sides is provided with fixed support (34), described fixed hub (32) and described motor shaft (4) are interference fit, described motor shaft (4) and described fixed hub (32) connecting portion are provided with knurling structure.
2. the electric vehicle non-brush permanent-magnet DC motor of a kind of setoff installation structure according to claim 1, it is characterized in that: described fixing end cap (11) is positioned at described magnetic guiding loop (23) left side, described fixing end cap (11) adopts silica gel sealing to coordinate with between described magnetic guiding loop (23), described drum stop end cap (12) be positioned at described retainer ring (25) right side, described drum is stopped between end cap (12) with described retainer ring (25) and is adopted silica gel sealing to coordinate.
3. the electric vehicle non-brush permanent-magnet DC motor of a kind of setoff installation structure according to claim 1, is characterized in that: described wheel rim (21) middle part is provided with bottom land (24), and described bottom land (24) is in asymmetric fillet structure.
4. the electric vehicle non-brush permanent-magnet DC motor of a kind of setoff installation structure according to claim 1, it is characterized in that: described magnetic guiding loop (23) adopts high permeability material to make, described magnetic guiding loop (23) is in circular ring, and described magnetic guiding loop (23) and described fixing end cap (11) are connected and fixed by trip bolt (13).
5. the electric vehicle non-brush permanent-magnet DC motor of a kind of setoff installation structure according to claim 1, it is characterized in that: described retainer ring (25) adopts mild steel material to make, described retainer ring (25) is in circular ring, and described retainer ring (25) and described drum end cap (12) of stopping is connected and fixed by trip bolt (13).
6. the electric vehicle non-brush permanent-magnet DC motor of a kind of setoff installation structure according to claim 1, is characterized in that: described permanent magnet (22) adopts neodymium-iron-boron magnetic material to make, and described permanent magnet (22) adopts number of poles to be 48 poles or 60 poles.
7. the electric vehicle non-brush permanent-magnet DC motor of a kind of setoff installation structure according to claim 1, it is characterized in that: described groove (36) groove number adopts 54 grooves, described groove (36) groove area is 75 ~ 90mm
2.
8. the electric vehicle non-brush permanent-magnet DC motor of a kind of setoff installation structure according to claim 1, it is characterized in that: described fixed support (34) is in right-hand offset structure, described fixed support (34) is in asymmetric bifurcated triangular structure, two ends, described fixed support (34) bottom are fastenedly connected described fixed hub (32), and described fixed support (32) adopts cold rolling carbon steel.
9. the electric vehicle non-brush permanent-magnet DC motor of a kind of setoff installation structure according to claim 1, it is characterized in that: described motor shaft (4) runs through and connects described field frame assembly (3) and described end cap (1) centre, be provided with oil sealing (41) and bearing (42) between described motor shaft (4) and described end cap (1), described oil sealing (41) is positioned at described bearing (42) outside.
10. the electric vehicle non-brush permanent-magnet DC motor of a kind of setoff installation structure according to claim 1, it is characterized in that: be provided with one outside described motor shaft (4) and described fixing end cap (11) junction and tiltedly bore a hole (43), the cooperation of described oblique perforation (43) runs through connection one cable (44), is provided with a breather pipe (45) in described cable (44).
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107947508A (en) * | 2017-12-08 | 2018-04-20 | 台州市金宇机电有限公司 | Electric bicycle motor end cover last item is held and gluing integrated machine |
| CN107959375A (en) * | 2017-12-28 | 2018-04-24 | 台州市金宇机电有限公司 | A kind of nonstandard electric vehicle hub direct driving motor |
| CN108001604A (en) * | 2017-12-28 | 2018-05-08 | 台州市金宇机电有限公司 | A kind of nonstandard electric vehicle motor wheel hub |
| WO2018082113A1 (en) * | 2016-11-01 | 2018-05-11 | 东南大学 | Magnetic flux switching hub motor having permanent magnet rotor |
| CN109980803A (en) * | 2017-12-28 | 2019-07-05 | 长鹰信质科技股份有限公司 | A kind of wheel hub electric motor of electric vehicle stator support |
| CN116658520A (en) * | 2023-05-05 | 2023-08-29 | 淮阴工学院 | Outer rotor radial six-pole three-degree-of-freedom alternating current-direct current hybrid magnetic bearing and parameter design method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108001604A (en) * | 2017-12-28 | 2018-05-08 | 台州市金宇机电有限公司 | A kind of nonstandard electric vehicle motor wheel hub |
| CN109980803A (en) * | 2017-12-28 | 2019-07-05 | 长鹰信质科技股份有限公司 | A kind of wheel hub electric motor of electric vehicle stator support |
| CN116658520A (en) * | 2023-05-05 | 2023-08-29 | 淮阴工学院 | Outer rotor radial six-pole three-degree-of-freedom alternating current-direct current hybrid magnetic bearing and parameter design method |
| CN116658520B (en) * | 2023-05-05 | 2024-06-11 | 淮阴工学院 | Outer rotor radial six-pole three-degree-of-freedom alternating current-direct current hybrid magnetic bearing and parameter design method |
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| CN104578658B (en) | 2016-03-23 |
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Denomination of invention: Permanent magnetic direct-current brushless motor of biased mounting structure Effective date of registration: 20160719 Granted publication date: 20160323 Pledgee: Industrial Commercial Bank of China Ltd Taizhou Huangyan branch Pledgor: Taizhou Jinyu Motor Co., Ltd. Registration number: 2016330000047 |
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