CN103580436A - Permanent magnet coreless brushless sensorless disk type direct-current motor - Google Patents
Permanent magnet coreless brushless sensorless disk type direct-current motor Download PDFInfo
- Publication number
- CN103580436A CN103580436A CN201210272205.6A CN201210272205A CN103580436A CN 103580436 A CN103580436 A CN 103580436A CN 201210272205 A CN201210272205 A CN 201210272205A CN 103580436 A CN103580436 A CN 103580436A
- Authority
- CN
- China
- Prior art keywords
- permanent magnet
- spindle
- axle
- sensorless
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The invention relates to a permanent magnet coreless brushless sensorless disk type direct-current motor. The permanent magnet coreless brushless sensorless disk type direct-current motor comprises a shaft (1), a left terminal cover assembly (2), at least one assembly (3) which is composed of a spindle (307), an annular shell (309) and two rotor assemblies (31), and a right terminal cover assembly (4), wherein the spindle-annular-shell-rotor assembly (3) comprises the two rotor assemblies (31) which are the same in specification, a first round groove (301) and a second round groove (302) are formed in the spindle (307), the rotor assemblies (31) are arranged in the first round groove (301) and the second round groove (302) respectively in a built-in mode, and each rotor assembly (31) comprises a rotor disk (312), a plurality of permanent magnets (313) and a plurality of permanent magnet fastening devices (314), and the permanent magnets (313) and the permanent magnet fastening devices (314) are fixedly arranged on the same plane of the corresponding rotor disk (312) in the mode of being sequentially alternate and being symmetrical about the circle center of the corresponding rotor disk (312). The permanent magnet coreless brushless sensorless disk type direct-current motor has the advantages of being light in weight, small in size and simple in structure, facilitating product manufacturing and being high in efficiency.
Description
Technical field
The present invention relates to a kind of disc style D. C. motor, specially refer to a kind of iron-core-free sensorless disc style D. C. motor.
Background technology
?existing permanent magnet DC motor, adopt radial magnetic field structure, by having spindle unshakable in one's determination, rotor, rotating shaft, the compositions such as base more.There are the following problems for this structural electromotor: 1. volume is large, weight is large; 2. the existence of iron core, increases volume, weight; Loss is large, efficiency is low; 3. the existence of iron core, increases iron loss, material consumption, not environmental protection etc.; 4. electric machine winding groove needs manual polishing, manually rolls off the production line, and dipping lacquer, dries etc., not environmental protection of the course of processing, and labour intensity is large.
Summary of the invention
The invention provides a kind of technical scheme, overcome the shortcoming of the existing permanent magnet DC motor existence of mentioning in background technology, accomplish that wide cut is efficient, energy-conservation, material-saving.Technical scheme of the present invention is as follows:
A kind of permanent magnet iron coreless sensorless disc style D. C. motor, comprise axle 1, and be located in successively from left to right the left terminal cap assemblies 2 on axle 1, at least one group of sub-assembly 3, the right terminal cap assemblies 4 being formed by the rotor 31 of two pairs of same specifications of spindle 307-toroidal shell 309-.In spindle 307, be also embedded with motor winding; Toroidal shell 309 is set in spindle 307 outsides; Two end faces of spindle 307 are provided with the first circular groove 301 and the second circular groove 302 with 307 one-tenth integral body of spindle, two same specifications vertically; Two pairs of rotor assembly 31 are built in the first circular groove 301 and the second circular groove 302 through axle 1 respectively; On described spindle 307 lateral walls, be provided with some terminals 308 that power supply machine winding and winding leading-out wire are used.
Further, described rotor assembly 31 comprises screw 311, rotor disk 312, some permanent magnets 313, and some permanent magnet fasteners 314; The first corner cut 3131 that described permanent magnet 313 roughly becomes is wide at the top and narrow at the bottom, there is same size at two ends, top and the second cutting 3132 fan-shaped; Described permanent magnet fastener 314 roughly becomes up-narrow and down-wide, and dual-side has respectively the trapezoidal of the first indent 3141 and the second indent 3142; Permanent magnet 313 is fixedly installed in the same plane of rotor disk 312 with respect to rotor disk 312 center of circle symmetries; Between each permanent magnet 313, have identical interval, permanent magnet fastener 314 embeds and is arranged in these intervals; The outer wide place of permanent magnet fastener 314 is provided with through hole 3143, is provided with the some screw holes 316 relative with through hole 3143 on rotor disk 312, and each fastener 314 and rotor disk 312 removably connect by screw 311; The first indent 3141 of every adjacent two fasteners 314 and the second indent 3142 be respectively near the first corner cut 3131 and second cutting 3132 of each permanent magnet 313, thereby along fastener 314 axial direction fixed permanent magnets 313.
Further: described spindle 307 first circular grooves 301 or any one external diameter of the second circular groove 302 and the ratio of its corresponding internal diameter are 1.732-2.2; Any one outside end face interior of described the first circular groove 301 and the second circular groove 302 along height lower than outer height.
Further, described rotor disk is provided with the keyway 315 that rotor disk 312 is fixed on to axle 1 in the middle of 312 centers of circle, and described axle 1 stage casing is provided with the external tooth 11 being meshed with described keyway 315.
Further, described keyway 315 is spline.
Further, described left terminal cap assemblies 2 and right terminal cap assemblies 4 are same size; Described left terminal cap assemblies 2 comprises left bearing 21, left axle sleeve 22 and the left terminal lid 23 of being manufactured by cast aluminium or cast iron; Described left bearing 21 is set in axle 1 and left terminal is covered in the gap of 23 inner sides formation; Left axle sleeve 22 is near left bearing 21, be set on axle 1 inwardly;
Described right terminal cap assemblies 4 comprises right bearing 41, right axle sleeve 42 and the right terminal lid 43 of being manufactured by cast aluminium or cast iron; Described right bearing 41 is set in axle 1 and right terminal is covered in the gap of 43 inner sides formation; Right axle sleeve 42 is near right bearing 41, be set on axle 1 inwardly.
Further, described left terminal lid 23 can be symmetrically arranged with some left heat radiation through holes 231 that are roughly in strip; The right terminal lid 43 relative centers of circle can be symmetrical arranged right heat radiation through hole 431.
Further, described toroidal shell 309 both sides end faces are evenly provided with some screw holes 306 along the center of circle of toroidal shell 309.
Further, also comprise some screws 5, screw 5 is detachably connected with two end faces of toroidal shell 309 left terminal lid 23 and right terminal lid 43 respectively by some screw holes 306, make whole permanent magnet iron coreless sensorless disc style D. C. motor be linked to be as a whole.
Further.On described toroidal shell 309 lateral surfaces, be also provided with for holding the through hole 3091 of some terminals 308 and the some through holes 303 that pass for the nut on spindle 307.
The present invention is owing to having adopted axial magnetic field design, iron-core-free, non-carbonate, simultaneously because the present invention has adopted up-to-date motor Driving technique, also saved the transducer that motor commutation is used, therefore, compared to the prior art, tool has the following advantages in the present invention: 1. lightweight, volume is little, simple in structure, product is easily manufactured; 2. this electric efficiency is high, can accomplish that wide cut is efficient; 3. position-sensor-free driving, DSP control, and further improve the flexibility of motor reliability, control.Expanded the range of application of permanent-magnet brushless DC electric machine.
Accompanying drawing explanation
Fig. 1 is general assembly drawing of the present invention;
Fig. 2 is along A-A direction cutaway view in Fig. 1;
Fig. 3 is exploded view of the present invention;
Fig. 4 is that the present invention removes the stereogram after part;
Fig. 5 is the stereogram of rotor assembly of the present invention (31);
Fig. 6 is the stereogram of permanent magnet fastener (314);
Fig. 7 is the stereogram of permanent magnet (313).
Embodiment
referring to figs. 1 to Fig. 3, Fig. 2 be Fig. 1 along A-A direction cutaway view, from Fig. 2, can recognize assembly structure of the present invention.In Fig. 2, left terminal cap assemblies 2 is arranged on the left side outermost end of axle 1, and left terminal cap assemblies 2 comprises left bearing 21, left axle sleeve 22 and the left terminal lid 23 of being manufactured by cast aluminium or cast iron.Left terminal lid 23 is arranged on the left end of axle 1, and the gap between the left end of axle 1 and left terminal lid 23 is provided with left bearing 21, and left bearing 21 plays back shaft 1 left part herein.Left axle sleeve 22 is set on axle 1, and abuts against the right of left bearing 21.Right terminal cap assemblies 4 comprises right bearing 41, right axle sleeve 42 and the right terminal lid 43 of being manufactured by cast aluminium or cast iron.Right terminal lid 43 is arranged on the place of the close right part of axle 1, and the gap in right terminal lid 43 and axle 1 right part, is provided with right bearing 41.Right bearing 41 also plays back shaft 1 right-hand member herein.Right axle sleeve 42 is set on axle 1, and right axle sleeve 42 abuts against the left side of right terminal cap assemblies 4.Left terminal lid 23 and right terminal lid 43 all along the center of circle separately, are symmetrically arranged with some left heat radiation through holes 231 that are roughly in strip and right heat radiation through hole 431(is shown in Fig. 3).It should be noted that, the said left terminal cap assemblies 2 of the present invention and right terminal cap assemblies 4 are same structure.
The sub-assembly (3) being comprised of the rotor assembly (31) of spindle (307)-toroidal shell (309)-two pair same specification is set in (see figure 2) on the axle 1 between left axle sleeve 22 and right axle sleeve 42.Sub-assembly (3) is innovation of the present invention, stresses below.
In the present embodiment, the quantity of sub-assembly 3 is one.Sub-assembly 3 comprises the spindle 307 that is comprised of injected plastics material, is embedded at the motor winding (not shown) of spindle 307 inside and the rotor assembly 31 of two pairs of same specifications.3,4 or 6 terminals 308 that the lead-out wire of the motor winding that spindle 307 is embedded is used, the concrete quantity of terminal 308 can need to be made corresponding change according to design.
Motor winding and winding leading-out wire (not shown) are embedded in to the design of spindle 307, have substituted the use of iron core in traditional design, reduced the weight of total.
Spindle 307 is cylindric, along two axial end faces of spindle 307, is provided with the first circular groove 301 and the second circular groove 302 with 307 one-tenth integral body of spindle, two same specifications.In overall diameter vertically of spindle 307 and the first circular groove 301 or the second circular groove 302, arbitrary madial wall diameter ratio is 1.732-2.2.The interior edge height of two end faces of spindle 307 is lower than outer height, and the object of design is to facilitate motor winding to embed like this, and convenient installation rotor assembly 31, is convenient to machine operation in optimum state.
In the present invention, have that two pairs of identical rotor disk assemblies 31 are built in respectively the first circular groove 301 through axle 1 and the second circular groove 302(is shown in Fig. 2 and Fig. 3).
The first corner cut 3131 or the second cutting 3132 match with the profile of the first indent 3131 or the second indent 3132.
The spindle 307 cylindrical sides that injected plastics material forms are uniform-distribution with several (not shown)s of embedded nut, nut passes the some through holes 303 on the toroidal shell 309 that is set in spindle 307 outsides, with screw, screw in nut in addition again, toroidal shell 309 and spindle 307 are fixed together.The waist typed through hole 3091 that holds some outlet terminals 308 is also established in toroidal shell 309 outsides.
The outside of toroidal shell 309 both sides end faces is evenly provided with some screw holes 306, left terminal lid 23 is provided with the through hole (not shown) corresponding with screw hole 306 positions with right terminal lid 43, screw 5 links together left terminal lid 23, toroidal shell 309, right terminal lid 43 respectively, makes whole invention form an integral body.
The said permanent magnet 313 of the present invention is made by sintered neodymium iron boron material, and permanent magnet fastener 314 is processed by 10#-20# rod iron.
In order to make the present invention have larger power, as another embodiment, the quantity of sub-assembly 3 can also be for several, and these sub-assemblies 3 are connected to each other together, thereby make the more powerful of motor generation.
Claims (10)
1. a permanent magnet iron coreless sensorless disc style D. C. motor, comprise axle (1), and be located in successively from left to right left terminal cap assemblies (2) on axle (1), at least one group of sub-assembly (3) being formed by the rotor assembly (31) of the injection molded spindle of macromolecular material (307)-toroidal shell (309)-two pair same specification, right terminal cap assemblies (4), it is characterized in that: by being also embedded with motor winding in spindle (307); Toroidal shell (309) is set in spindle (307) outside; Two end faces of spindle (307) are provided with the first circular groove (301) and the second circular groove (302) that becomes two whole same specifications with spindle (307) vertically; On described spindle (307) outer circumference face, be evenly provided with for the nut that connects spindle (307) and toroidal shell (309); Two pairs of rotor assembly (31) are built in the first circular groove (301) and the second circular groove (302) through axle (1) respectively; On described spindle (307) lateral wall, be provided with some lead terminals (308) that power supply machine winding leading-out wire is used.
2. according to a kind of permanent magnet iron coreless sensorless disc style D. C. motor described in claim 1, it is characterized in that: described rotor assembly (31) comprises screw (311), rotor disk (312), some permanent magnets (313), and some permanent magnet fasteners (314); That described permanent magnet (313) roughly becomes is wide at the top and narrow at the bottom, the first corner cut that there is same size at two ends, top (3131) and the second cutting (3132) fan-shaped; Described permanent magnet fastener (314) roughly becomes up-narrow and down-wide, and dual-side has respectively the trapezoidal of the first indent (3141) and the second indent (3142); Permanent magnet (313) is fixedly installed in the same plane of rotor disk (312) with respect to rotor disk (312) center of circle symmetry; Each permanent magnet has identical interval between (313), and permanent magnet fastener (314) embeds and is arranged in these intervals; The outer wide place of permanent magnet fastener (314) is provided with through hole (3143), on rotor disk (312), be provided with the some screw holes (316) relative with through hole (3143), each fastener (314) and rotor disk (312) removably connect by screw (311); First indent (3141) of every adjacent two fasteners (314) and the second indent (3142) be respectively near the first corner cut (3131) and second cutting (3132) of each permanent magnet (313), thereby along fastener (314) axial direction fixed permanent magnet (313).
3. according to a kind of permanent magnet iron coreless sensorless disc style D. C. motor described in right 1, it is characterized in that: described spindle (307) first circular grooves (301) or any one external diameter of the second circular groove (302) and the ratio of its corresponding internal diameter are 1.732-2.2; Described the first circular groove (301) and the second circular groove (302) any one outside end face interior along height lower than outer height.
4. according to a kind of permanent magnet iron coreless sensorless disc style D. C. motor described in right 1, it is characterized in that: in the middle of described rotor disk (312) center of circle, be provided with the keyway (315) that rotor disk (312) is fixed on to axle (1); Described axle (1) stage casing is provided with the external tooth (11) being meshed with described keyway (315).
5. according to a kind of permanent magnet iron coreless sensorless disc style D. C. motor described in right 1, it is characterized in that: described keyway (315) is spline.
6. according to a kind of permanent magnet iron coreless sensorless disc style D. C. motor described in right 1, it is characterized in that: described left terminal cap assemblies (2) and right terminal cap assemblies (4) are same size; Described left terminal cap assemblies (2) comprises left bearing (21), left axle sleeve (22) and the left terminal lid (23) of being manufactured by cast aluminium or cast iron; Described left bearing (21) is set in the gap of axle (1) and the formation of left terminal lid (23) inner side; Left axle sleeve (22) is near left bearing (21), be set on axle (1) inwardly;
Described right terminal cap assemblies (4) comprises right bearing (41), right axle sleeve (42) and the right terminal lid (43) of being manufactured by cast aluminium or cast iron; Described right bearing (41) is set in the gap of axle (1) and the formation of right terminal lid (43) inner side; Right axle sleeve (42) is near right bearing (41), be set on axle (1) inwardly.
7. according to a kind of permanent magnet iron coreless sensorless disc style D. C. motor described in claim 5, it is characterized in that: described left terminal lid (23) can be symmetrically arranged with some left heat dissipation ventilation holes (231) that are roughly in strip; Right terminal lid (43) can be symmetrical arranged right heat dissipation ventilation hole (431) in the center of circle relatively.
8. according to a kind of permanent magnet iron coreless sensorless disc style D. C. motor in claim 1, it is characterized in that: described toroidal shell (309) both sides end face is evenly provided with some screw holes (306) along the center of circle of toroidal shell (309).
9. according to a kind of permanent magnet iron coreless sensorless disc style D. C. motor described in any one in claim 1-8, it is characterized in that: also comprise some screws (5), screw (5) is by left terminal lid (23) and right terminal is covered (43) respectively and two end faces of toroidal shell (309) are detachably connected by some screw holes (306), makes whole permanent magnet iron coreless sensorless disc style D. C. motor be linked to be as a whole.
10. according to a kind of permanent magnet iron coreless sensorless disc style D. C. motor described in claim 1, it is characterized in that: on described toroidal shell (309) lateral surface, be also provided with the some through holes (303) that pass for the nut on the waist typed through hole that holds some lead terminals (308) (3091) and confession spindle (307).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210272205.6A CN103580436A (en) | 2012-08-02 | 2012-08-02 | Permanent magnet coreless brushless sensorless disk type direct-current motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210272205.6A CN103580436A (en) | 2012-08-02 | 2012-08-02 | Permanent magnet coreless brushless sensorless disk type direct-current motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103580436A true CN103580436A (en) | 2014-02-12 |
Family
ID=50051568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210272205.6A Pending CN103580436A (en) | 2012-08-02 | 2012-08-02 | Permanent magnet coreless brushless sensorless disk type direct-current motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103580436A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201807A (en) * | 2014-09-19 | 2014-12-10 | 洛阳市贝叶机电有限公司 | Rotor structure of permanent magnet coreless motor |
| CN104218758A (en) * | 2014-09-03 | 2014-12-17 | 洛阳市贝叶机电有限公司 | Permanent magnet coreless brushless motor |
| CN104300702A (en) * | 2014-10-30 | 2015-01-21 | 盐城工学院 | Commutatorless permanent magnet disc-type direct-current motor |
| CN105827067A (en) * | 2016-06-14 | 2016-08-03 | 湖南德益伟节能科技有限公司 | Inner cavity ventilation and heat dissipation system device of magnetic matrix coreless motor |
| CN109962584A (en) * | 2017-12-22 | 2019-07-02 | 深圳市乐丰科技有限公司 | Disc type electric machine and its manufacturing method |
| CN110380527A (en) * | 2019-07-23 | 2019-10-25 | 北京永光高特微电机有限公司 | A kind of disc type electric machine being convenient for carrying |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5625365A (en) * | 1979-08-08 | 1981-03-11 | Matsushita Refrig Co | Two-phase winding type brushless direct current motor |
| CN2402049Y (en) * | 1999-09-30 | 2000-10-18 | 梁昌勇 | Permanent magnetic rotator |
| CN101882825A (en) * | 2010-05-11 | 2010-11-10 | 唐山曹妃甸锂源电动汽车驱动总成有限公司 | Motor rotor for electric automobile |
| CN101951106A (en) * | 2010-08-06 | 2011-01-19 | 深圳创维－Rgb电子有限公司 | Ultrathin high-power direct current magnetoelectric motor |
| CN102005877A (en) * | 2010-09-21 | 2011-04-06 | 深圳创维－Rgb电子有限公司 | Energy-saving hub motor |
| CN202721588U (en) * | 2012-08-02 | 2013-02-06 | 深圳市瀚美特科技有限公司 | Disc type permanent magnet brushless direct current motor with iron core-free and sensor-free properties |
-
2012
- 2012-08-02 CN CN201210272205.6A patent/CN103580436A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5625365A (en) * | 1979-08-08 | 1981-03-11 | Matsushita Refrig Co | Two-phase winding type brushless direct current motor |
| CN2402049Y (en) * | 1999-09-30 | 2000-10-18 | 梁昌勇 | Permanent magnetic rotator |
| CN101882825A (en) * | 2010-05-11 | 2010-11-10 | 唐山曹妃甸锂源电动汽车驱动总成有限公司 | Motor rotor for electric automobile |
| CN101951106A (en) * | 2010-08-06 | 2011-01-19 | 深圳创维－Rgb电子有限公司 | Ultrathin high-power direct current magnetoelectric motor |
| CN102005877A (en) * | 2010-09-21 | 2011-04-06 | 深圳创维－Rgb电子有限公司 | Energy-saving hub motor |
| CN202721588U (en) * | 2012-08-02 | 2013-02-06 | 深圳市瀚美特科技有限公司 | Disc type permanent magnet brushless direct current motor with iron core-free and sensor-free properties |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218758A (en) * | 2014-09-03 | 2014-12-17 | 洛阳市贝叶机电有限公司 | Permanent magnet coreless brushless motor |
| CN104201807A (en) * | 2014-09-19 | 2014-12-10 | 洛阳市贝叶机电有限公司 | Rotor structure of permanent magnet coreless motor |
| CN104300702A (en) * | 2014-10-30 | 2015-01-21 | 盐城工学院 | Commutatorless permanent magnet disc-type direct-current motor |
| CN105827067A (en) * | 2016-06-14 | 2016-08-03 | 湖南德益伟节能科技有限公司 | Inner cavity ventilation and heat dissipation system device of magnetic matrix coreless motor |
| CN105827067B (en) * | 2016-06-14 | 2018-06-19 | 湖南德益伟节能科技有限公司 | A kind of inner cavity aeration radiation system device of nonmagnetic matrix Non-iron core motor |
| CN109962584A (en) * | 2017-12-22 | 2019-07-02 | 深圳市乐丰科技有限公司 | Disc type electric machine and its manufacturing method |
| CN110380527A (en) * | 2019-07-23 | 2019-10-25 | 北京永光高特微电机有限公司 | A kind of disc type electric machine being convenient for carrying |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102801264B (en) | Permanent magnet laminated motor | |
| CN103580436A (en) | Permanent magnet coreless brushless sensorless disk type direct-current motor | |
| CN102611266B (en) | The manufacture method of washing machine motor, motor for dryer, motor and rotor | |
| CN104871403B (en) | Spoke type p-m rotor | |
| KR102534232B1 (en) | Rotating electrical machine | |
| CN101951106A (en) | Ultrathin high-power direct current magnetoelectric motor | |
| CN103944336A (en) | Hub drive motor with radial and tangential permanent magnet steel embedded in rotor | |
| CN102214958A (en) | Stator and rotor structure of permanent magnet motor | |
| CN103138442B (en) | The rotor of interior permanent magnet machines and use its interior permanent magnet machines | |
| CN202931055U (en) | Motor rotor and motor | |
| CN105763008A (en) | Slender coreless brushless two-pole permanent magnet direct-current motor | |
| US20170133894A1 (en) | Stator and BLDC Motor Having the Same | |
| CN202721588U (en) | Disc type permanent magnet brushless direct current motor with iron core-free and sensor-free properties | |
| KR101382599B1 (en) | Dual-rotor motor | |
| CN201667564U (en) | Stator, rotor structures of a permanent magnetic electric motor | |
| CN208820568U (en) | Rotor punching, rotor core, rotor, brshless DC motor and broken wall cooking machine | |
| KR102218794B1 (en) | a stator and an inner rotor of a generator for use with a rotary shaft | |
| CN203911608U (en) | Rotor punching sheet, rotor core and motor | |
| CN203193469U (en) | Coreless disc-type direct-current brushless motor | |
| CN202840876U (en) | Permanent magnet laminated motor | |
| US9099909B2 (en) | Brushed direct current electric motor with salient pole rotor | |
| US10110082B2 (en) | Permanent manget synchronous motor and method assembling same | |
| CN107612165B (en) | Conical air gap axial double-loop magnetic field permanent magnet synchronous motor | |
| CN203491865U (en) | Double stator axial magnetic field permanent magnetic brushless direct current motor | |
| CN105958774A (en) | Surface-mounted radial and embedded tangential permanent magnet steel drive motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140212 |