CN106685172A - Three-phase permanent magnet external rotor motor and method for assembling stator and rotor - Google Patents
Three-phase permanent magnet external rotor motor and method for assembling stator and rotor Download PDFInfo
- Publication number
- CN106685172A CN106685172A CN201710074080.9A CN201710074080A CN106685172A CN 106685172 A CN106685172 A CN 106685172A CN 201710074080 A CN201710074080 A CN 201710074080A CN 106685172 A CN106685172 A CN 106685172A
- Authority
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- China
- Prior art keywords
- rotor
- rear end
- end cap
- bearing bracket
- drive end
- 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
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/22—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K15/00—Methods or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Motor Or Generator Frames (AREA)
- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The invention discloses a three-phase permanent magnet external rotor motor which comprises a stator, a rotor and a spindle, wherein the rotor comprises a front end cover, a rear end cover, a rotor steel sleeve and a controller cover; a front bearing is arranged between the front end cover and the spindle; an inner ring of the front bearing is fixedly connected with the inner side of the controller cover; the outer side of the controller cover is resisted against a fixed nut sleeving the spindle; seam allowances used for positioning the two ends of the rotor steel sleeve are formed on the relative positions of the front end cover and the rear end cover; a plurality of positioning bulges are arranged on the outer side of the front end cover and the rear end cover; and the front end cover is connected with the rear end cover through a bolt. According to the invention, the rotor is arranged in a split form of front end cover, rear end cover, rotor steel sleeve and controller cover, so that the friction between the rotor and the stator caused by the deformation of the front end cover can be prevented and the service life of the motor is prolonged. The invention also discloses a method for assembling the stator and the rotor of the three-phase permanent magnet external rotor motor, so that the scraping between the stator and the rotor is effectively prevented.
Description
Technical field
The invention belongs to machine field, and in particular to a kind of three-phase permanent external rotor electric machine.
Background technology
At present, outer rotor motor structure, usual rotor case is the structure of one end open, as shown in figure 3, rotor left side is outer
Controller lid is covered with shell, the left side of rotor case does not have supporting construction, under the pressure of controller lid, is susceptible to bending
Deformation, causes to be scraped between rotor and stator, reduces the external rotor electric machine life-span.
The content of the invention
The technical problem to be solved is just to provide outside a kind of a kind of three-phase permanent for preventing outer rotor from deforming and turns
Sub-motor.
To solve above-mentioned technical problem, the present invention is adopted the following technical scheme that：A kind of three-phase permanent external rotor electric machine, including
Stator, the rotor being socketed on stator and the rotating shaft through stator and rotor, rotor includes drive end bearing bracket, is fixed on rotating shaft one end
The controller lid of rear end cap, the rotor steel bushing with magnet steel between drive end bearing bracket and rear end cap and closed front lid, it is front
Fore bearing is provided between end cap and rotating shaft, the internal ring of fore bearing is fixedly connected with the inside of controller lid, outside controller lid
Side offsets with the fixing nut being socketed in rotating shaft, and drive end bearing bracket and rear end cap are provided with for positioning rotor steel on relative position
The seam at the two ends of set, drive end bearing bracket and rear end cap outside are provided with several positioning convex, set on the positioning convex of drive end bearing bracket
The first screwed hole is equipped with, the second screwed hole is provided with the positioning convex of rear end cap, drive end bearing bracket and rear end cap are by through first
The screw of screwed hole and the second screwed hole is connected.
Further, the yoke portion of stator including split molding and the boots portion that is socketed on the outside of yoke portion and it is connected to boots portion two
The magnetic isolation plate at end, the outside continuous uniform in yoke portion is distributed with coiling tooth, and the side wall of coiling tooth is put down with the radial center face of coiling tooth
OK, the first groove is formed between two neighboring coiling tooth, locating slot is provided with coiling tooth, be provided with the inside of boots portion and positioning
The locating piece that groove is engaged.
Further, boots portion is provided with the second groove towards on the position of winding slot, and the first groove and the second groove are formed
The winding slot of closing.
Further, the limiting plate offseted with the outer ring outside of fore bearing is provided with drive end bearing bracket, is set on the inside of fore bearing
The bearing cover offseted with the outer ring inner side of fore bearing is equipped with, bearing cover is fixed by screws on drive end bearing bracket.
Further, rear end cap inner side is provided with ring-shaped baffle, and rear bearing, the inner ring of rear bearing are provided with ring-shaped baffle
Offset with rotating shaft and outer ring offsets with ring-shaped baffle.
Further, the material of drive end bearing bracket and rear end cap is aluminium alloy.
Further, magnetic isolation plate is epoxy plate or the one kind in aluminium sheet.
Further, slip ring is connected between stator and rotor.
Further, oil sealing is provided between rear end cap and rotating shaft.
Present invention also offers a kind of rotor of three-phase permanent external rotor electric machine attaches together method, comprise the steps：a、
The fixed part of guide pillar is put in positioning screw hole, tightening tool is engaged in the mounting groove being engaged, it is fixed that fixed part is tightened to
In the screw of position, the guide part of multiple guide pillars forms positioning cylindrical surface；B, rotor steel bushing are moved down along positioning cylindrical surface, to end
Lid stop portion stops；C, guide pillar is unloaded, cover drive end bearing bracket；D, using bolt connection drive end bearing bracket and rear end cap.
Compared with prior art, the invention has the beneficial effects as follows：
1st, by the way that rotor split to be arranged to the form of drive end bearing bracket, rear end cap, rotor steel bushing and controller lid, stator is installed
When, only stator need to be arranged in rear end cap, then install rotor steel bushing, the two ends of rotor steel bushing respectively with drive end bearing bracket and after
Seam on end cap offsets, and finally covers drive end bearing bracket by screw through the first screwed hole and the second screwed hole, and rotor steel bushing is rotated
Drive end bearing bracket and rear end cap is driven to rotate, drive end bearing bracket and rear end cap are linked by screw, and rear end cap drives axis of rotation, controller lid
Side offsets with fixing nut, and side offsets with the inner ring of fore bearing, and rotating shaft band movement controller lid is rotated, without the need in drive end bearing bracket
To install stator, drive end bearing bracket is supported in support shaft front opening by fore bearing, prevents drive end bearing bracket from deforming and occurring with stator
Friction.
2nd, prevent the boots portion for socket-connecting and yoke portion from relatively rotating by the cooperation of locating piece and locating slot, boots portion two ends
Magnetic isolation plate to being socketed in boots portion in yoke portion play a part of axial limiting, while magnetic isolation plate can reduce the leakage of stator core
Magnetic.The winding slot that first groove and the second groove are formed greatly reduces rule compared to monoblock type iron core of the prior art
Difficulty, monoblock type iron core copper factor typically up to 70%, using the split type core structure, copper factor can be easily reached
More than 85%, copper factor is substantially increased, in the case where Same Efficieney demand is met, copper factor is higher, is embedded in equivalent conductor
Iron core needed for volume it is less, iron core is less, and the quality of the motor equipped with iron core is less, i.e. the split type core structure
Significantly reduce the quality of motor.The winding slot of remaining silent that first groove and the second groove are formed can substantially reduce rotor teeth groove and turn
Square, reduces vibration noise of motor, and epoxy plate and aluminium sheet are non-magnet material, are effectively reduced leakage field.
3rd, the bearing outer ring of fore bearing is fixed by bearing cover and limiting plate, prevents fore bearing from issuing in the vibrations of motor
Life is slided and departs from drive end bearing bracket.
4th, the inner ring and rotating shaft that rear bearing rear axle holds offsets and outer ring and ring-shaped baffle offset, and rear bearing increases rear end cap
With the contact area of axle, rear end cap is played a supporting role, while rear end cap is not fixed in the axial direction, can freely be entered in the axial direction
Row is flexible, the thermal expansion amount of the mismachining tolerance on small electromotor axial direction and axle.
5th, only the material that the part for being provided with magnet steel is arranged to steel bushing, drive end bearing bracket and rear end cap is into aluminium alloy, is compared
In the integral type rotor of steel construction, quality is less, substantially reduces the quality of motor, reduce drive end bearing bracket and rear end cap to fore bearing and
Afterwards the pressure of bearing, extends the service life of fore bearing and rear bearing.
The 6th, slip ring is set between the stator and the rotor, by the given son of outer rotor electric energy is provided, prevent stator and rotor it
Between occur turn round line.
7th, oil sealing effectively prevents lubricating oil from spilling along axle from rear end cap, or outside air penetrates into along axle, and internal oil sealing is right
Covering dirt.
Compared with prior art, the present invention by by by rotor split be arranged to drive end bearing bracket, rear end cap, rotor steel bushing and
The form of controller lid, without the need for the front opening in drive end bearing bracket to install stator, drive end bearing bracket is supported on support shaft by fore bearing
On, prevent drive end bearing bracket from deforming and rubbing with stator, extend the service life of motor, it is fixed to effectively prevent in method is attached together
Scraping between rotor.
Description of the drawings
With reference to the accompanying drawings and detailed description the invention will be further described：
Fig. 1 is the schematic diagram of the present invention；
Fig. 2 is the schematic diagram of stator；
Fig. 3 is existing external rotor electric machine schematic diagram.
Wherein：1st, stator；11st, yoke portion；111st, coiling tooth；1111st, locating slot；112nd, the first groove；12nd, boots portion；121、
Second groove；122nd, locating piece；13rd, magnetic isolation plate；2nd, rotor；21st, drive end bearing bracket；211st, seam；22nd, rear end cap；221st, convex
Rise；222nd, screw；23rd, rotor steel bushing；24th, controller lid；3rd, rotating shaft；31st, fixing nut；4th, fore bearing；5th, rear bearing；6th, ring
Shape baffle plate.
Specific embodiment
A kind of embodiment of three-phase permanent external rotor electric machine of the invention is described further referring to figs. 1 to Fig. 2.
A kind of three-phase permanent external rotor electric machine, including stator 1, socket rotor 2 on the stator 1 and through stator 1 and turn
Son 2 rotating shaft 3, rotor 2 include drive end bearing bracket 21, be fixed on the rear end cap 22 of the one end of rotating shaft 3, positioned at drive end bearing bracket 21 and rear end cap 22
Between the rotor steel bushing 23 with magnet steel and closed front lid 21 controller lid 24, set between drive end bearing bracket 21 and rotating shaft 3
Be equipped with fore bearing 4, the internal ring of fore bearing 4 is fixedly connected with the inner side of controller lid 24, the outside of controller lid 24 be socketed in
Fixing nut 31 in rotating shaft 3 offsets, and drive end bearing bracket 21 and rear end cap 22 are provided with for positioning rotor steel bushing on relative position
The seam 211 at 23 two ends, drive end bearing bracket 21 and the outside of rear end cap 22 are provided with several positioning convex 221, drive end bearing bracket 21
The first screwed hole is provided with positioning convex 221, on the positioning convex 221 of rear end cap 22 the second screwed hole, drive end bearing bracket are provided with
21 are connected with rear end cap 22 by the screw 222 through the first screwed hole and the second screwed hole.Stator 1 includes the yoke of split molding
Portion 11 and the boots portion 12 being socketed on the outside of yoke portion 11 and the magnetic isolation plate 13 for being connected to the two ends of boots portion 12, the outside in yoke portion 11 is continuous
Coiling tooth 111 is evenly distributed with, the side wall of coiling tooth 111 is parallel with the radial center face of coiling tooth 111, two neighboring coiling tooth
The first groove 112 is formed between 111, locating slot 1111 is provided with coiling tooth 111, the inner side in boots portion 12 is provided with and locating slot
1111 locating pieces 122 being engaged.Boots portion 12 is provided with the second groove 121, the He of the first groove 112 towards on the position of winding slot
Second groove 121 forms the winding slot of closing.The limiting plate offseted with the outer ring outside of fore bearing 4 is provided with drive end bearing bracket 21,
The inner side of fore bearing 4 is provided with the bearing cover offseted with the outer ring inner side of fore bearing 4, and bearing cover is fixed by screw 222
On drive end bearing bracket 21.The inner side of rear end cap 22 is provided with ring-shaped baffle 6, is provided with rear bearing 5 in ring-shaped baffle 6, rear bearing 5 it is interior
Circle offsets with rotating shaft 3 and outer ring offsets with ring-shaped baffle 6.The material of drive end bearing bracket 21 and rear end cap 22 be aluminium alloy, magnetic isolation plate 13
For the one kind in epoxy plate or aluminium sheet.Slip ring is connected between stator 1 and rotor 2.
By the form that the split of rotor 2 is arranged to drive end bearing bracket 21, rear end cap 22, rotor steel bushing 23 and controller lid 24,
When stator 1 is installed, only stator 1 need to be arranged in rear end cap 22, then install rotor steel bushing 23, the two ends of rotor steel bushing 23
Offset with the seam 211 on drive end bearing bracket 21 and rear end cap 22 respectively, finally cover drive end bearing bracket 21 and screw 222 is passed through into the first screw thread
Hole and the second screwed hole, rotor steel bushing 23 is rotated and drives drive end bearing bracket 21 and rear end cap 22 to rotate, and drive end bearing bracket 21 and rear end cap 22 are logical
Cross screw 222 to link, rear end cap 22 drives rotating shaft 3 to rotate, and the side of controller lid 24 offsets with fixing nut 31, side and front axle
The inner ring for holding 4 offsets, and rotating shaft 3 is rotated with movement controller lid 24, front without the need for the front opening in drive end bearing bracket 21 to install stator 1
End cap 21 is supported in support shaft by fore bearing 4, prevents drive end bearing bracket 21 from deforming and rubbing with stator 1.
Prevent the boots portion 12 for socket-connecting and yoke portion 11 from relative turning occurring by locating piece 122 and the cooperation of locating slot 1111
Dynamic, axial limiting is played a part of in the yoke portion 11 that the magnetic isolation plate 13 pairs at the two ends of boots portion 12 is socketed in boots portion 12, while magnetic isolation plate
13 leakage fields that can reduce the iron core of stator 1.The winding slot that first groove 112 and the second groove 121 are formed is compared in prior art
Monoblock type iron core, greatly reduce rule difficulty, monoblock type iron core copper factor typically up to 70%, using the split type ferrum
Cored structure, copper factor can be easily reached more than 85%, substantially increase copper factor, in the situation for meeting Same Efficieney demand
Under, copper factor is higher, and the volume being embedded in needed for the iron core of equivalent conductor is less, and iron core is less, the matter of the motor equipped with iron core
Amount is less, i.e., the split type core structure significantly reduces the quality of motor.First groove 112 and the second groove 121 are formed
Winding slot of remaining silent can substantially reduce the cogging torque of rotor 2, reduce vibration noise of motor, epoxy plate and aluminium sheet are non-magnetic material
Material, is effectively reduced leakage field.
The bearing outer ring of fore bearing 4 is fixed by bearing cover with limiting plate, prevents fore bearing 4 from issuing in the vibrations of motor
Life is slided and departs from drive end bearing bracket 21.
Afterwards the inner ring of bearing 5 offsets with rotating shaft 3 and outer ring offsets with ring-shaped baffle 6 after bearing 5, after rear bearing 5 is increased
End cap 22 and the contact area of axle, play a supporting role to rear end cap 22, while rear end cap 22 is not fixed in the axial direction, can be in axle
Freely stretched upwards, the thermal expansion amount of the mismachining tolerance on small electromotor axial direction and axle.
Only the material that the part for being provided with magnet steel is arranged to steel bushing, drive end bearing bracket 21 and rear end cap 22 is into aluminium alloy, is compared
Compared with the integral type rotor 2 of steel construction, quality is less, substantially reduces the quality of motor, reduces drive end bearing bracket 21 and rear end cap 22 pairs
The pressure of fore bearing 4 and rear bearing 5, extends the service life of fore bearing 4 and rear bearing 5.
Slip ring is set between stator 1 and rotor 2, by the given son 1 of outer rotor 2 electric energy is provided, prevent stator 1 and rotor
Occur to turn round line between 2.
Oil sealing effectively prevents lubricating oil from spilling along axle from rear end cap 22, or outside air penetrates into along axle, and internal oil sealing is right
Covering dirt.
A kind of rotor of the motor of three-phase permanent outer rotor 2 attaches together method, and fixed part is put in positioning screw hole, using pulling
The tightening tools such as handss are engaged in the mounting groove being engaged, and rotating spanner is tightened to fixed part in positioning screw hole, after tightening, under
Guide part longitudinal section is located on the curved surface that motor inwall is located towards the side on the inside of motor, and several lower guide parts are looped around motor
The positioning cylindrical surface with guide effect is formed on housing, positioning cylindrical surface coincides with the inwall of motor, the edge of rotor steel bushing 23
Positioning cylindrical surface to move down, rotor assembling is completed at end cap seam 211, guide pillar is backed out, in follow-up assembling more
Change the screw 222 of connection drive end bearing bracket 21 and rear end cap 22.Guide part auxiliary realizes that the electric machine rotor of outer rotor 2 is assembled,
It is effectively guaranteed rotor not scrape, prevents from causing the feelings of the magnet steel fragmentation on rotor steel bushing 23 because of rotor attraction impact
Condition occurs, and assembly method is mutually simple and practical, effectively prevents rotor from scraping.
The above is only the preferred embodiment of the present invention, and protection scope of the present invention is not limited merely to above-mentioned enforcement
Example, all technical schemes belonged under thinking of the present invention belong to protection scope of the present invention.It should be pointed out that for the art
Those of ordinary skill for, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications
Should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of three-phase permanent external rotor electric machine, including stator, the rotor being socketed on stator and turning through stator and rotor
Axle, it is characterised in that：The rotor includes drive end bearing bracket, be fixed on rotating shaft one end rear end cap, positioned at drive end bearing bracket and rear end cap it
Between the rotor steel bushing with magnet steel and closed front lid controller lid, be provided with front axle between the drive end bearing bracket and rotating shaft
Hold, the internal ring of fore bearing is fixedly connected with the inside of controller lid, the outside of the controller lid be socketed in consolidating in rotating shaft
Determine nut to offset, the seam for positioning the two ends of rotor steel bushing be provided with the relative position of the drive end bearing bracket and rear end cap,
The drive end bearing bracket and rear end cap outside are provided with several positioning convex, and on the positioning convex of the drive end bearing bracket first is provided with
Screwed hole, is provided with the second screwed hole on the positioning convex of the rear end cap, the drive end bearing bracket and rear end cap are by through first
The screw of screwed hole and the second screwed hole is connected.
2. a kind of three-phase permanent external rotor electric machine according to claim 1, it is characterised in that：The stator include split into
The yoke portion and the boots portion being socketed on the outside of yoke portion of type and the magnetic isolation plate for being connected to boots portion two ends, the outside in the yoke portion is continuously equal
Even that coiling tooth is distributed with, the side wall of the coiling tooth is parallel with the radial center face of coiling tooth, shape between two neighboring coiling tooth
Into the first groove, locating slot is provided with the coiling tooth, on the inside of the boots portion positioning being engaged with locating slot is provided with
Block.
3. a kind of three-phase permanent external rotor electric machine according to claim 2, it is characterised in that：The boots portion is towards winding slot
Position on be provided with the second groove, first groove and the second groove form the winding slot of closing.
4. a kind of three-phase permanent external rotor electric machine according to claim 1 or 2 or 3, it is characterised in that：On the drive end bearing bracket
The limiting plate offseted with the outer ring outside of fore bearing is provided with, the outer ring inner side with fore bearing is provided with the inside of the fore bearing
The bearing cover for offseting, bearing cover is fixed by screws on drive end bearing bracket.
5. a kind of three-phase permanent external rotor electric machine according to claim 4, it is characterised in that：The rear end cap inner side is arranged
There is ring-shaped baffle, be provided with rear bearing in ring-shaped baffle, the inner ring of rear bearing offsets with rotating shaft and outer ring offsets with ring-shaped baffle.
6. a kind of three-phase permanent external rotor electric machine according to claim 1 or 2 or 3, it is characterised in that：The drive end bearing bracket and
The material of rear end cap is aluminium alloy.
7. a kind of three-phase permanent external rotor electric machine according to claim 6, it is characterised in that：The magnetic isolation plate is epoxy plate
Or the one kind in aluminium sheet.
8. a kind of three-phase permanent external rotor electric machine according to claim 1, it is characterised in that：Between the stator and rotor
It is connected with slip ring.
9. a kind of three-phase permanent external rotor electric machine according to claim 1, it is characterised in that：The rear end cap and rotating shaft it
Between be provided with oil sealing.
10. a kind of rotor of three-phase permanent external rotor electric machine attaches together method, it is characterised in that comprise the steps：A, will lead
The fixed part of post is put in positioning screw hole, and tightening tool is engaged in the mounting groove being engaged, and fixed part is tightened to into positioning spiral shell
Kong Zhong, the guide part of multiple guide pillars forms positioning cylindrical surface；B, rotor steel bushing are moved down along positioning cylindrical surface, are stopped to end cap
Stop at mouthful；C, guide pillar is unloaded, cover drive end bearing bracket；D, using bolt connection drive end bearing bracket and rear end cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710074080.9A CN106685172A (en) | 2017-02-10 | 2017-02-10 | Three-phase permanent magnet external rotor motor and method for assembling stator and rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710074080.9A CN106685172A (en) | 2017-02-10 | 2017-02-10 | Three-phase permanent magnet external rotor motor and method for assembling stator and rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106685172A true CN106685172A (en) | 2017-05-17 |
Family
ID=58860832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710074080.9A Pending CN106685172A (en) | 2017-02-10 | 2017-02-10 | Three-phase permanent magnet external rotor motor and method for assembling stator and rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106685172A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964370A (en) * | 2018-08-13 | 2018-12-07 | 豪圣挚达（上海）电气有限责任公司 | A kind of axial support structure and its application method of motor press fitting impeller |
| WO2021129034A1 (en) * | 2019-12-25 | 2021-07-01 | 卧龙电气驱动集团股份有限公司 | External rotor permanent magnet motor |
| CN114006494A (en) * | 2021-10-20 | 2022-02-01 | 西安中车永电捷力风能有限公司 | Wind driven generator with bearing unit capable of being disassembled on tower |
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| CN203278456U (en) * | 2013-04-25 | 2013-11-06 | 金华英科尔电机有限公司 | External rotor DC brushless motor with high load intensity |
| CN104393733A (en) * | 2014-12-03 | 2015-03-04 | 上海电动工具研究所 | Integral high-speed permanent-magnet brushless direct-current motor for electric tool |
| CN205811682U (en) * | 2016-06-16 | 2016-12-14 | 日本电产凯宇汽车电器（江苏）有限公司 | A kind of stator module for electric motor of automobile |
| CN106385145A (en) * | 2016-10-21 | 2017-02-08 | 沈阳工业大学 | Assembly device of permanent magnet of outer rotor crane permanent magnet motor and application method thereof |
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| CN2353088Y (en) * | 1998-04-18 | 1999-12-08 | 浙江卧龙集团公司 | Electrically driven wheel boss |
| CN201202684Y (en) * | 2008-05-27 | 2009-03-04 | 杭州微光电子设备厂 | Outer rotor axial flow fan |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964370A (en) * | 2018-08-13 | 2018-12-07 | 豪圣挚达（上海）电气有限责任公司 | A kind of axial support structure and its application method of motor press fitting impeller |
| CN108964370B (en) * | 2018-08-13 | 2024-03-19 | 晓圣电机(上海)有限公司 | Axial supporting structure for press-fitting impeller of motor and application method of axial supporting structure |
| WO2021129034A1 (en) * | 2019-12-25 | 2021-07-01 | 卧龙电气驱动集团股份有限公司 | External rotor permanent magnet motor |
| CN114006494A (en) * | 2021-10-20 | 2022-02-01 | 西安中车永电捷力风能有限公司 | Wind driven generator with bearing unit capable of being disassembled on tower |
| CN114006494B (en) * | 2021-10-20 | 2024-02-02 | 西安中车永电捷力风能有限公司 | Wind driven generator capable of disassembling bearing unit on tower |
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Address after: 313000, No. 2599, weaving Avenue, Wuxing District, Zhejiang, Huzhou Applicant after: Zhejiang dadongwu auto motor Limited by Share Ltd Address before: The eight store in Zhejiang province Huzhou city Wuxing District 313000 three Bridge Road No. 685 Zhejiang dadongwu Auto Motor Co. Ltd. Applicant before: ZheJiang Dadongwu Auto Electric Motor Co., Ltd. |
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Application publication date: 20170517 |
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| RJ01 | Rejection of invention patent application after publication |