CN102280983A - Permanent magnet generator with two coaxial outer rotors and coreless coil - Google Patents
Permanent magnet generator with two coaxial outer rotors and coreless coil Download PDFInfo
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Abstract
The invention discloses a permanent magnet generator with two coaxial outer rotors and a coreless coil, belonging to the technical field of new energy power supply devices. The permanent magnet generator comprises a stator, and the two outer rotors are coaxially sleeved outside the stator and can be matched with a vertical or horizontal wind-driven generator. The coaxial permanent magnet generator is characterized in that stator windings are arranged at two ends of the stator in shape of a cylinder, the center of an inner disc is provided with a hole for fixing a main shaft, the main shaft is supported by bearings in the two outer rotors, permanent magnets symmetric with the stator windings are arranged in the circle area of the inner walls of the outer rotors and rotate along with the outer rotors, and a lead is respectively connected with the output ends of the stator windings to output. According to a new scheme of utilizing a new technology that multiple permanent magnets are longitudinally arranged and multiple or multi-layer coreless coils are stacked, running the secondary utilization of wind energy airflow in a working condition normal state and the mutual facilitation of two wind wheels after combination, and designing that a single bearing supports the outer rotors to run to generate electricity, thus the output power of the wind-driven generator is increased in times, and the wind-driven generator can regularly start generating electricity under the condition of the gentle breeze speed less than 1m/s.
Description
Technical field
The present invention relates to the coaxial iron-less core coil permanent magnet generator of a kind of double external rotor, belong to the clean energy resource technical field of wind power generating equipment, particularly a kind of and vertical or high efficiency wind-driven generator that horizontal wind power generator is supporting.
Background technology
The main frame of traditional wind-driven generator is made up of a stator and a rotor, and ubiquity defectives such as volume is big, quality heavy, cost is high, noise is big, the occupation of land space is big, wind energy utilization is low; Recently there is the dealer to appreciate examination and on the stator case of generator and rotor, the opposite wind wheel of blade rotation direction is set respectively, stator and rotor are rotated to improve generating efficiency by rightabout separately, weak point is, stator coil is followed the housing rotation, output lead must pass through electroconductive elastic sheet or conducting slip ring transition, can produce defectives such as frictional resistance, spark, rapid wear the brush carrier in direct current machine, problem is just more outstanding in than high-power generator.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective, realize by the following technical solutions.
The coaxial iron-less core coil permanent magnet generator of a kind of double external rotor, it comprises stator, outer coaxial sheathed two external rotors of stator, can be with vertical or horizontal wind power generator is supporting: the stator 3 of a cylinder, sub-winding 6 is set at two ends, 601, the inner disc center drilling is fixing for main shaft 4, main shaft is by two external rotors 1, bearings in 101, be provided with and the symmetrical permanent magnet 2 of stator winding in the area of a circle of external rotor inwall, 201, establish air gap between permanent magnet and the stator winding, permanent magnet rotates with external rotor, and lead 7 connects the pipeline output that stator winding passes in the main shaft or stator is peripheral respectively.
Described stator winding 6 and 601 is the iron-less core coil winding, turn to the coil of circle, square or hexagonal body by enamelled wire or sticking enamelled wire, 20+F the horizontal annular of coil is connected into 1 group of winding, 1 group of one phase, threephase generator is vertically to arrange 3 groups or 3k group winding, and evenly distributing by electrical phase angle is fixed in the stator 3; Perhaps, vertically arrange, form 1 loop piece by the serial or parallel connection ways of connecting, or directly turn to one or more coils by vertically being arranged as 1 loop piece by a plurality of coils; 20+F loop piece is serially connected in the loop piece winding of 1 layer of annular, perhaps directly turns to the loop piece winding of 1 layer of annular of 20+F loop piece series connection, 1 layer of a phase, and three phase electric machine is 3 layers or 3k layer, evenly distributing by electrical phase angle is fixed in the stator 3; The head of above-mentioned three phase windings, tail end press Y or △ shape connects, and is drawn by lead 7; Wherein F or K are natural number.
Described external rotor 1,101 by processing of metal material integral type or split type processing, split typely add man-hour: metallic plate is processed into end cap, the end cap center is provided with bearing 5, establish two circle circular grooves in the inboard area of a circle of end cap, establish several screw holes in each circular groove, metal tube is dimensioned to two diameter differences by circular groove, the torus of equal in length, screw is fixed by screw hole in the end cap and torus, wherein the external wall of great circle inner wall of ring body and small circle ring is provided with permanent magnet 2 respectively, 201, distinguished is that the position that bearing 5 is set in the end cap is drawn close to the alignment of shafts separately, is located at the centre position of roundlet inner wall of ring body, to improve the dynamic equilibrium degree of external rotor, establish a bearing operation in the external rotor separately, frictional resistance when having reduced rotation makes wind wheel be able to turn round under the gentle breeze state, has further improved the generating effect.
Described permanent magnet 2,201 is Xi Tu Nd iron boron permanent magnetism, samarium cobalt permanent magnet or Al-Ni-Co permanent magnet, making cuboid or long watt body shape or vertically being rearranged by three fritter squares is a cuboid, 20+H piece permanent magnet is formed a circle, wherein H is a natural number, the polarity of the magnetic field of permanent magnet: press S-N-S-N ... the order of S or press S-N-magnetic inductive block-N-S-magnetic inductive block-S-N-magnetic inductive block-N-S ... the order of the S circular arrangement that along the circumferential direction evenly distributes is fixed on external rotor 1, in 101 the area of a circle, per two groups of permanent magnets are set up in parallel at stator coil 6,601 both sides of facing mutually.
Described main shaft 4 is by stainless steel tube, seamless steel pipe or round steel are processed into, endoporus passes through for lead 7, the main shaft external diameter is provided with the protruding retaining backer that can supply bearing 5, stator 3 to fix, with the location dimension and the air gap of above-mentioned each parts of accurate control, circlip groove and bearing cap are established in the main shaft two ends, and screw passes bearing cap and fixes with external rotor respectively, bearing 5 is positioned between bearing cap and the packing ring, moving with the restrictive axial string; When making the coaxial iron-less core coil permanent magnet generator of horizontal double external rotor, main shaft 4 is processed into for round steel.
Described stator 3 is made cylindrical shape by metal and insulating material, the inner disc center drilling passes fixing for main shaft 5, remainder is established several lightening holes, and with weight reduction, stator winding 6,601 is fixed on the two ends of cylinder by bobbin or epoxy resin casting; When making the coaxial iron-less core coil permanent magnet generator of horizontal double external rotor, the round metal ring body that cylinder outer periphery one circle protrudes is provided with in the torus for the external screw hole of installing and using.
Be provided with the width of air gap between described permanent magnet 2,201 and the stator winding 6,601, need to set according to the generator power size, be chosen as 0.2mm～6mm scope, the high more then air gap of processing precise degree is more little, the more little delivery efficiency that improves generator that then is beneficial to more of air gap.
The exposed parts of above-mentioned external rotor 1,101 shells is established every magnetosphere with protection with prevent that magnetic field from leaking.
Described can be supporting with vertical wind driven generator, one of them scheme is: first wind wheel 9, second wind wheel 901 are the spherical wind wheel of turbine type; By first wind wheel 9, or first wind wheel 9 of a power-assist wind wheel 902 is established at top, be connected with first external rotor 1 of the coaxial iron-less core coil permanent magnet generator of double external rotor, second external rotor 101 is connected with second wind wheel 901, wherein, a plurality of blades in first wind wheel 9 are made the spherical wind wheel of the turbine type that turns clockwise, a plurality of blades in second wind wheel 901 are made the spherical wind wheel of the turbine type that is rotated counterclockwise, the volume of second wind wheel is less than first wind wheel, be arranged on the inside of first wind wheel 9, stator 3 is fixing with main shaft 4, main shaft is by first external rotor 1, bearing 5 in second external rotor 101 supports, main shaft is fixed by the cross in extension pipe and the support 10, support 10 is fixed on the roof, air duct empty in the support is connected with the ventilating opening on roof, the room ventilation air communication is crossed air duct empty in the support 10 and is risen promotion second wind wheel 901 by being rotated counterclockwise, discharging formation vortex acceleration rotation the space of air-flow between a plurality of arc shaped blades that constitute wind wheel rises, the exhaust airstream of rotation acts on a plurality of arc shaped blades in first wind wheel 9, promote first wind wheel by turning clockwise, two wind wheels produce interactive effects, and first external rotor 1 that drives integral shaft generator and second external rotor 101 are according to different direction rotary electrifications; Because above-mentioned two wind wheel direction of rotation are opposite, change and isolated the room ventilation air-flow and discharged discharge directions when outdoor, make outdoor airflow can only promote the wind wheel rotation, direct air channel in the inlet chamber, two kinds of defectives that air-flow is repealed by implication when having overcome outdoor nature wind-force greater than indoor ascending air, improved utilization ratio of wind energy and performance of ventilating,, made the efficient of generator strengthen more than one times by the interactive effect that two kinds of wind wheels produce.
Described and the supporting use of horizontal wind power generator, one of them scheme is: first wind wheel, second wind wheel are the multiblade wind wheel of 2～8 fan blades; First wind wheel 9, be connected with first external rotor 1 of the coaxial iron-less core coil permanent magnet generator of double external rotor, second external rotor 101 is connected with second wind wheel 901, the stator 3 peripheral torus that protrude are connected with rolling disc 11 by screw hole, rolling disc lower end and wind-driven generator pillar 12 are fixing, lead 7 connects the pipeline that the output of stator winding 6,601 passes in the pillar 12 respectively and draws, stator 3 peripheral torus top or the arranged outside rain covers 8 that protrude, the tail end of main shaft 4 connects wind top 13 by extension bar; Wherein, blade in first wind wheel 9 make dextrorotation to, blade in second wind wheel 901 is made counterclockwise rotation direction, when the nature air-flow promotes first wind wheel 9 by turning clockwise, it is discharged air-flow and acts on the blade of a plurality of counterclockwise rotation directions of second wind wheel 901, promote second wind wheel by being rotated counterclockwise, two wind wheels produce interactive effects, and first external rotor 1 that drives integral shaft generator respectively and second external rotor 101 are according to different direction rotary electrifications; Make the generator efficiency multiplication.
Beneficial effect: one. adopt the innovative techniques scheme that the polylith permanent magnet is vertically arranged and many or the stack of multilayer line iron-less core coil design, break through traditional a pair of magnetic pole and joined the boundary that a coil and rotor are joined a stator, increased substantially generating efficiency.Two. utilization wind energy air-flow second use and two kinds of interactive facilitations that the wind wheel aggregate erection is later under the operating mode normality, make the power output of equivalent diameter motor improve more than 1 times, 3. be designed to single shaft and hold support external rotor running generating, make the generating function under the situation of gentle breeze wind speed＜1m/s, start generating; Reach the target that volume is little, efficient is high, safe and reliable.
Description of drawings
Vertical cross-sectional schematic of 1. 1 kinds of coaxial iron-less core coil permanent magnet generatores of double external rotor of accompanying drawing structure.
2. 1 kinds of coaxial iron-less core coil permanent magnet generatores of horizontal double external rotor of accompanying drawing structure cross-sectional schematic.
The coaxial iron-less core coil permanent magnet generator cross-sectional schematic of 3. 1 kinds of split processing of accompanying drawing double external rotor.
The AA cross-sectional schematic that 4. 1 kinds of iron-less core coils of accompanying drawing are arranged in generator and put row.
5. 1 kinds of iron-less core coil monolithics of accompanying drawing are arranged schematic diagram.
The supporting operational version schematic diagram of 6. 1 kinds of vertical wind driven generators of accompanying drawing.
The matching used scheme schematic diagram of 7. 1 kinds of horizontal wind power generators of accompanying drawing.
Embodiment
Among the figure: 1. first external rotor, 101. second external rotors, 2. first permanent magnet, 201. second permanent magnets, 3. stator, 4. main shaft, 5. bearing, 6. first stator winding, 601. second stator winding, 7. leads.
Following examples do not constitute places restrictions on any of protection range of the present invention.
Embodiment: vertical cross-sectional schematic of 1. 1 kinds of coaxial iron-less core coil permanent magnet generatores of double external rotor of accompanying drawing structure.Among the figure: stator 3 is by metal, insulating material is made cylindrical shape, the inner disc center drilling passes fixing for main shaft 4, remainder is provided with several lightening holes, stator winding 6,601 are fixed on the two ends up and down of cylinder by the casting of bobbin or epoxy resin, main shaft 4 is supported by the bearing in two external rotors 5, be provided with and the symmetrical some circle permanent magnets 2 of stator winding in the area of a circle of external rotor inwall, 201, vertically rearrange a cuboid by three fritter squares, some cuboids are formed 1 circle permanent magnet, stator winding 6,601 are connected into 1 group by the horizontal annular of several coils, 3 groups of windings vertically rearrange a stator winding, permanent magnet 2,201 with stator winding 6, leave air gap between 601, permanent magnet rotates with external rotor, and lead 7 connects the pipeline that stator winding passes in the main shaft 4 respectively and draws formation; Wherein the main shaft two ends are provided with circlip groove and bearing cap, and screw passes bearing cap and fixes with external rotor respectively, and back-up ring moves bearing 5 location on the card with the restrictive axial string.
Embodiment: 2. 1 kinds of coaxial iron-less core coil permanent magnet generatores of horizontal double external rotor of accompanying drawing structure cross-sectional schematic.Among the figure: stator 3 is made cylinder by metal and insulating material, the inner disc center drilling passes fixing for main shaft 4, remainder is provided with several lightening holes, stator winding 6,601 are fixed on the two ends, the left and right sides of cylinder by the casting of bobbin or epoxy resin, be provided with screw hole in the peripheral torus that protrudes of stator for external installation, main shaft 4 is supported by the bearing in two external rotors 5, external rotor 1, be provided with and stator winding 6 in the area of a circle of 101 inwalls, 601 symmetrical some circle permanent magnets 2,201, form 1 circle permanent magnet by some cuboids, stator winding is made up of three layers of loop piece loop piece winding, leave air gap between permanent magnet and the stator winding, permanent magnet rotates with external rotor, and lead 7 connects the stator winding output respectively and draws formation through the pipeline of stator periphery; Wherein main shaft 4 two ends are provided with circlip groove and bearing cap, and screw passes bearing cap and fixes with external rotor respectively, and back-up ring is located bearing on the card; Main shaft 4 is processed into for round steel.
Embodiment: the coaxial iron-less core coil permanent magnet generator cross-sectional schematic of 3. 1 kinds of split processing of accompanying drawing double external rotor.Structure among the figure and accompanying drawing 1,2 is basic identical, difference is, external rotor 1,101 housing splits processing, split typely add man-hour: metallic plate is processed into end cap, the end cap center is provided with bearing 5, establish two circle circular grooves in the inboard area of a circle of end cap, establish several screw holes in each circular groove, metal tube is dimensioned to two diameter differences by circular groove, the torus of equal in length, screw is fixed by screw hole in the end cap and torus, and wherein the external wall of great circle inner wall of ring body and small circle ring is established permanent magnet respectively.
Embodiment: the AA cross-sectional schematic that 4. 1 kinds of iron-less core coils of accompanying drawing are arranged in generator and put row.Among the figure: the great circle ring body in 101. second external rotors, 1011. roundlet ring body, 201. the permanent magnet of the second external rotor great circle ring body, 2011. the permanent magnet of the second external rotor roundlet ring body, 6011. the ground floor winding in second stator winding 601,6012. the second layer winding in second stator winding 601, the 3rd layer of winding in 6013. second stator winding 601.
Embodiment: 1 loop piece of 5. 1 kinds of iron-less core coils of accompanying drawing is arranged schematic diagram.Among the figure: the 1st loop piece in the 6011. ground floor windings 6011,6012. the 1st loop piece in the second layer winding 6012,6013. the 1st loop piece in the 3rd layer of winding 6013, each circle sheet is made by 2 coil series connection, a, b, three terminals of c initiating terminal that is above-mentioned 3 loop piece wherein, 1., 2., 3 line tails 3. are linked in sequence respectively or coiling is following 3 loop piece ...
Embodiment: shown in the accompanying drawing 6, the supporting operational version schematic diagram of a kind of vertical wind driven generator.Among the figure: first wind wheel 9, second wind wheel 901 are the spherical wind wheel of turbine type; Be provided with first wind wheel 9 of power-assist wind wheel 902 by a top, be connected with first external rotor 1 of the coaxial iron-less core coil permanent magnet generator of double external rotor, second external rotor 101 is connected with second wind wheel 901, wherein, a plurality of blades in first wind wheel 9 are made the spherical wind wheel of turbine type of the exhaust that turns clockwise, a plurality of blades in second wind wheel 901 are made the spherical wind wheel of the turbine type that is rotated counterclockwise exhaust, second wind wheel is located at the inside of first wind wheel 9, stator 3 is fixing with main shaft 4, main shaft is by first external rotor 1, two bearings 5 in second external rotor 101 support, main shaft is fixed by the cross in extension pipe and the support 10, support is fixed on the roof, and air duct empty in the support is connected with the ventilating opening on roof.
Embodiment: shown in the accompanying drawing 7, the matching used scheme schematic diagram of a kind of horizontal wind power generator.First wind wheel, second wind wheel are the multiblade wind wheel of 4 fan blades; First wind wheel 9, be connected with first external rotor 1 of the coaxial iron-less core coil permanent magnet generator of double external rotor, second external rotor 101 is connected with second wind wheel 901, the stator 3 peripheral round metal ring bodies that protrude are connected with directed rolling disc 11 by screw hole, rolling disc lower end and wind-driven generator pillar 12 are fixing, the output that lead 7 connects stator winding 6,601 respectively passes the pipeline out-put supply in the pillar, stator 3 peripheral torus top or the arranged outside rain covers 8 that protrude, the tail end of main shaft 4 connects wind top 13 by extension bar; Wherein, the blade in first wind wheel 9 make dextrorotation to, the blade in second wind wheel 901 is made counterclockwise rotation direction.
The exposed parts of above-mentioned external rotor shell is established every magnetosphere with protection with prevent that magnetic field from leaking.
The coaxial iron-less core coil permanent magnet generator of double external rotor since volume little, in light weight, efficient is high, power output is big, safe and reliable, can be widely used in various wind-powered electricity generations place, have wide applications and development potentiality.
Claims (8)
1. coaxial iron-less core coil permanent magnet generator of double external rotor, it comprises stator, outer coaxial sheathed two external rotors of stator, it is characterized in that: the stator of a cylinder (3), sub-winding (6) is set at two ends, (601), the inner disc center drilling is fixing for main shaft (4), main shaft is by external rotor (1), (the bearings in 101, be provided with and the symmetrical permanent magnet (2) of stator winding in the external rotor inwall area of a circle, (201, establish air gap between permanent magnet and the stator winding, permanent magnet rotates with external rotor, and lead (7) connects the pipeline output that stator winding passes in the main shaft or stator is peripheral.
2. according to the coaxial iron-less core coil permanent magnet generator of the described double external rotor of claim 1, feature is: described stator winding (6) and (601) are the iron-less core coil winding, turn to the coil of circle, square or hexagonal body by enamelled wire or sticking enamelled wire, 20+F coil laterally along the circumferential direction evenly distributes and is connected into 1 group of annular winding, 1 group of one phase, threephase generator is vertically to arrange 3 groups or 3k group winding, and along the circumferential direction evenly distributing by electrical phase angle is fixed in the stator (3); Perhaps, vertically arrange, connect to form 1 loop piece, or direct one or more coils of coiling are by vertically being arranged as 1 loop piece by serial or parallel connection by a plurality of coils; 20+F loop piece is serially connected in the loop piece winding of 1 layer of annular, the loop piece winding of 1 layer of annulus bodily form of perhaps direct coiling 20+F loop piece series connection, 1 layer of one phase, three phase electric machine is 3 layers or 3k layer, along the circumferential direction evenly distributing by electrical phase angle is fixed in the stator (3); The head of above-mentioned three phase windings, tail end press Y or △ shape connects, and is drawn by lead (7); Wherein F or K are natural number.
3. according to the coaxial iron-less core coil permanent magnet generator of the described double external rotor of claim 1, feature is: described external rotor (1), (101) by processing of metal material integral type or split type processing, split typely add man-hour: metallic plate is processed into end cap, the end cap center is provided with bearing (5), establish two circle circular grooves in the inboard area of a circle of end cap, establish several screw holes in each circular groove, metal tube is dimensioned to two diameter differences by circular groove, the torus of equal in length, screw is fixed by screw hole in the end cap and torus, wherein the external wall of great circle inner wall of ring body and small circle ring is provided with permanent magnet (2) respectively, (201), distinguished is that the position that bearing (5) is set in the end cap is drawn close to the alignment of shafts separately, be arranged on the middle part of roundlet inner wall of ring body, establish a bearing operation in the external rotor separately.
4. according to the coaxial iron-less core coil permanent magnet generator of the described double external rotor of claim 1, feature is: described permanent magnet (2) (201) is a Xi Tu Nd iron boron permanent magnetism, samarium cobalt permanent magnet or Al-Ni-Co permanent magnet, making cuboid or long watt body shape or vertically being rearranged by three fritter squares is a cuboid, 20+H piece permanent magnet is formed a circle, wherein H is a natural number, magnetic field of permanent magnet polarity: press S-N-S-N ... the order of S or press S-N-magnetic inductive block-N-S-magnetic inductive block-S-N-magnetic inductive block-N-S ... the along the circumferential direction even external rotor (1) that is fixed on arranged evenly of the order of S, (101) in the area of a circle, be set up in parallel the both sides of facing mutually in stator coil (6) or (601).
5. according to the coaxial iron-less core coil permanent magnet generator of the described double external rotor of claim 1, feature is: described main shaft (4) is processed into by stainless steel tube, seamless steel pipe or round steel, endoporus passes through for lead (7), the main shaft external diameter is provided with and can supplies bearing (5), the fixing protruding retaining backer of stator (3), with the location dimension of above-mentioned each parts of accurate control, circlip groove and bearing cap are established in the main shaft two ends.
6. according to the coaxial iron-less core coil permanent magnet generator of the described double external rotor of claim 1, feature is: described stator (3) is made cylindrical shape by metal, insulating material, disc centre perforate in the cylinder is passed fixing for main shaft (5), remainder is provided with several lightening holes, and stator winding (6), (601) are fixed on the two ends of cylinder by bobbin or epoxy resin casting; When making the coaxial iron-less core coil permanent magnet generator of horizontal double external rotor, the round metal ring body that cylinder outer periphery one circle protrudes is provided with in the torus for the external screw hole of installing and using.
7. according to the coaxial iron-less core coil permanent magnet generator of the described double external rotor of claim 1, feature is: the width that leaves air gap between described permanent magnet (2), (201) and stator winding (6), (601), be chosen as 0.2mm～6mm scope, air gap is more little, then is beneficial to the delivery efficiency that improves generator more.
8. according to the coaxial iron-less core coil permanent magnet generator of the described double external rotor of claim 1, feature is: the exposed parts of described external rotor 1,101 shells is established every magnetosphere with protection with prevent that magnetic field from leaking.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110202864.8A CN102280983B (en) | 2011-07-08 | 2011-07-08 | Permanent magnet generator with two coaxial outer rotors and coreless coil |
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| CN201110202864.8A CN102280983B (en) | 2011-07-08 | 2011-07-08 | Permanent magnet generator with two coaxial outer rotors and coreless coil |
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| CN102280983B CN102280983B (en) | 2014-06-04 |
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| CN201851275U (en) * | 2010-10-18 | 2011-06-01 | 刘晓成 | Vertical type dual-rotor wind driven generator |
| CN201851276U (en) * | 2010-10-22 | 2011-06-01 | 刘晓成 | Horizontal double-rotor wind driven generator |
| CN102097906A (en) * | 2011-01-11 | 2011-06-15 | 陈国宝 | Multilayer coreless coil permanent magnet motor |
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| CN103078427B (en) * | 2013-01-10 | 2015-04-01 | 王九龙 | Slip ring motor |
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| CN103683559B (en) * | 2013-11-28 | 2018-09-14 | 陕西华邦节能环保有限公司 | A kind of permanent magnetism power saving apparatus |
| CN103607072A (en) * | 2013-12-09 | 2014-02-26 | 青岛中恒兴业新能源科技有限公司 | Ultrathin type breeze double power generator |
| CN103683769A (en) * | 2013-12-24 | 2014-03-26 | 哈尔滨工业大学 | Non-magnetic yoke structure permanent magnet limited angle motor |
| CN103683769B (en) * | 2013-12-24 | 2015-12-02 | 哈尔滨工业大学 | Without conductive magnetic yoke structure permanent magnet finite angle motor |
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| CN105978267A (en) * | 2015-11-11 | 2016-09-28 | 永康市法拉迪电机有限公司 | Drive device of efficient body slimmer |
| CN105811697A (en) * | 2016-05-22 | 2016-07-27 | 郭洁敏 | Motor structure capable of positive and negative rotation to output |
| CN105811610A (en) * | 2016-05-22 | 2016-07-27 | 郭洁敏 | Motor rotor and motor containing same |
| WO2020024138A1 (en) * | 2018-08-01 | 2020-02-06 | 加贺绿能科技股份有限公司 | Hybrid variable magnetic force energy-saving motor |
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