CN103248163A - External rotor motor - Google Patents
External rotor motor Download PDFInfo
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- CN103248163A CN103248163A CN2013101674399A CN201310167439A CN103248163A CN 103248163 A CN103248163 A CN 103248163A CN 2013101674399 A CN2013101674399 A CN 2013101674399A CN 201310167439 A CN201310167439 A CN 201310167439A CN 103248163 A CN103248163 A CN 103248163A
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Abstract
The invention is suitable for the field of mechanical and electrical technology, and provides an external rotor motor which comprises a stator with a central hole and a motor output shaft fixed in the central hole of the stator in a penetrating manner; a first bearing and a second bearing are arranged on the motor output shaft at an interval, and are respectively positioned and mounted in a shaft sleeve matched with the central hole of the stator; and a third bearing is further arranged on the motor output shaft. The first bearing and the second bearing are mounted in the shaft sleeve, so that the problem that the coaxiality of two bearing chambers is poor since the two bearing chambers are respectively processed is solved, and the processing cost of the motor is lowered; as the shaft sleeve and the central hole of the stator are assembled and fixed, the shaft sleeve is simply assembled, and the influence on the whole device during the operation process of the stator of the motor can be reduced; and the arrangement of the third bearing further reduces the vibration during the operation process of the stator of the motor and reduces the noise during the operation process of the motor.
Description
Technical field
The invention belongs to technical field of motors, relate in particular to a kind of external rotor electric machine.
Background technology
Motor is one of indispensable parts of various electronic products, and wherein the external rotor induction machine has compact conformation, advantage that stock utilization is high, is widely used in fields such as exhaust equipment, air-conditioning unit, air cleaning system and cooling device.Referring to Fig. 1, the bearing arrangement of traditional external rotor induction machine generally is the two ends that first ball bearing 200, second ball bearing 500 are arranged at stator 600, on motor output shaft 100 is positioned at and encloses within first ball bearing 200, second ball bearing 500.During assembling, the end cap 400 that has bearing chamber is pressed in its centre bore from stator 600 both sides respectively with the axle sleeve 700 that has bearing chamber, in two ball bearings, second ball bearing 500 is installed in the bearing chamber of end cap 400, laying of first ball bearing 200 then is to be pressed into axle sleeve 700 in earlier in stator 600 centre bores, this second ball bearing 600 is installed in the axle sleeve 700 again.This traditional structure is owing to be separately positioned on two bearings on two different workpieces, two bearing chambers are processed respectively, thereby processing and fit on easily have morpheme sum of errors rigging error, certainly will have relatively high expectations to concentricity and the position degree of two workpieces like this, if processing and assembling when not in place, cause the air gap inequality of motor easily, make motor produce electromagnetic noise and vibration owing to air gap is uneven, also can cause two axialities after the bearing assembling poor simultaneously, produce bigger vibration and noise when making motor rotation, thereby reduce motor properties.So it is higher to bearing installed part machining accuracy, assembling quality requirement to plant the motor of structure, also make the processing cost of motor improve the corresponding reduction of working (machining) efficiency undoubtedly.
The disclosed document CN201937346U of Patent Office of the People's Republic of China has disclosed a kind of " split type whole external rotor asynchronous machine ", it is that two ball bearings are arranged in the shouldered axle sleeve, wherein convex shoulder is positioned at the stiff end of output shaft, rely on the side plane backstop location of stator, and offer threaded mounting hole at this convex shoulder, be connected with end cap by screw, axle sleeve is fixed.Said structure, though the employing axle sleeve can improve the assembly precision between two ball bearings, but this tactic pattern is owing to be with the side plane of the stator installation locating surface as axle sleeve, and the carrier that axle sleeve is also located as end cap, end cap is connected with stator by bolt, has improved the requirement of stator in processing so undoubtedly, increased the cost of stator, and the vibration meeting of rotating shaft during motor rotation passes to the side of stator by this axle sleeve, and given subband comes adverse influence.During assembling, because axle sleeve is connected by screw with end cap, rigging error between its axle sleeve and the end cap still can make and have the gap between screw and the axle sleeve, when motor rotation, screw must bear the vibration in using of motor that the weight of the motor integral body of being transmitted by shell and axle sleeve transmit, it is easy like this that screw is produced is loosening, and then influence the running of ball bearing and even motor output shaft, simultaneously, in operation process, the running of two rolling bearings still can produce certain vibration, especially at stator center hole inner chamber, its bigger echo also can produce noise, influences the quiet performance that whole motor requires day by day.
Summary of the invention
The object of the present invention is to provide a kind of external rotor electric machine, can reduce the vibration in the rotor operation process, reduce the operating noise of motor.
For achieving the above object, external rotor electric machine provided by the invention comprises the stator with centre bore and wears the motor output shaft that is fixed in the described stator center hole, be spacing on the described motor output shaft and be provided with clutch shaft bearing and second bearing, described clutch shaft bearing and described second bearing respectively location and installation in one with axle sleeve that described stator center hole cooperates in, on described output shaft, also be provided with the 3rd bearing.
In the concrete scheme of the present invention, described the 3rd bearing is located between described clutch shaft bearing or second bearing, and with described clutch shaft bearing or second bearing in any one bearing fit mutually or be set in distance.
In the further scheme of the present invention, described axle sleeve two ends offer respectively for the installing hole of placing described clutch shaft bearing and described second bearing and described the 3rd bearing, and wherein said the 3rd bearing and described second bearing are fitted mutually or be spacing to be arranged at same installing hole interior and be positioned at described motor output shaft equipped at outlet port.
In the further scheme of the present invention, described axle sleeve two ends offer respectively for the installing hole of placing described clutch shaft bearing and described second bearing and described the 3rd bearing, and wherein said the 3rd bearing and described clutch shaft bearing are fitted mutually or be spacing to be arranged at same installing hole interior and be positioned at described motor output shaft end.In the concrete scheme of the present invention, described clutch shaft bearing and second bearing are rolling bearing.
In the concrete scheme of the present invention, described the 3rd bearing is sliding bearing or rolling bearing.
In the concrete scheme of the present invention, described sliding bearing is oiliness bearing, nylon bearing or rubber shaft bearing.
In the further scheme of the present invention, install malthoid on the described sliding bearing.
The present invention is further in the scheme, and is also fluted on the described sliding bearing, and described malthoid is housed in the described groove.
In the concrete scheme of the present invention, described stator two ends arrange fixed support and end cap respectively, described fixed support injection mo(u)lding and will be around in the winding encapsulation on the described stator and described fixed support, described axle sleeve and described stator are connected in one by introducing by the plastic rubber material in the cavity of described end cap and described fixed support capping.
Than prior art, beneficial effect of the present invention is: at first cancelled the bearing chamber that end cap carries, two rolling bearings are installed in the axle sleeve, solved like this that two bearing chambers are processed respectively and the problem of the axiality difference that causes, both reduce the motor processing cost, can reduce the noise that causes because of coaxiality error again.Simultaneously, the direct mount of axle sleeve and stator center hole, not only can make the assembling of axle sleeve become simple, and only bear output shaft by the end cap of axle sleeve and output and rotate stress and the vibration that produces, can reduce above-mentioned stress and the vibration to other members prolong and, so just, reduce the influence that in the rotor operation process whole device is produced, guaranteed the serviceability of motor preferably; Secondly, the present invention arranges the 3rd bearing at motor output shaft, impulsive force during by this loading ability of bearing and the running of absorption output shaft, particularly can absorb from the bigger echo of stator center hole inner chamber, further slowed down the vibration in the rotor operation process, reduced the operating noise of motor, improved the motor traveling comfort, the serviceability that is motor further is protected, also can save manufacturing procedure and processing cost, and be convenient to assembling, have the market competitiveness preferably, can be widely used in various induction machines.
Description of drawings
Fig. 1 is the external rotor electric machine structural representation of prior art;
Fig. 2 is the axle sleeve embodiment schematic diagram of external rotor electric machine provided by the invention;
Fig. 3 is external rotor electric machine structure embodiment schematic diagram one provided by the invention;
Fig. 4 is external rotor electric machine structure embodiment schematic diagram two provided by the invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
Referring to Fig. 3 and Fig. 4, the invention provides a kind of external rotor electric machine, comprise stator 5 with centre bore, cooperate and be located at the rotor 4 of described stator 5 peripheries with this stator 5, described stator 5 is arranged with winding 13, motor output shaft 1 wears the centre bore of described stator 5, and stretches out along the centre bore of stator 5.On the output shaft 1 of described motor, be spacing and be provided with clutch shaft bearing 6 and second bearing 2, wherein clutch shaft bearing 6 is positioned at the end of motor output shaft 1, and second bearing 2 is positioned at the equipped at outlet port of motor output shaft 1, and two bearings is positioned at the part of motor cavity for carrying and supporting motor output shaft 1.Location and installation is on an axle sleeve 8 respectively for described clutch shaft bearing 6 and described second bearing 2, and this axle sleeve 8 is straight tubular construction, wears motor stator 5 centre bores, and its periphery cooperates fixing with this centre bore, make it to form a fixed connection with stator 5; On described motor output shaft 1, also be provided with the 3rd bearing 14.In the said structure design, clutch shaft bearing 6 and described second bearing 2 are arranged on the same axle sleeve 8, can guarantee clutch shaft bearing 6 and the axiality of second bearing 2 in bearing mounting hole from structural design like this, reduce because satisfying the increase of the processing cost that requirement on machining accuracy causes, the axiality that also can reduce simultaneously after each bearing assembles is poor, reduces to produce bigger vibration and noise when making motor rotation.Simultaneously, because it is fixing that axle sleeve 8 only cooperates with stator 5 centre bores by its periphery, thereby can there be a rigging error that connects with a plurality of related members and produce, so also can reduce the concentricity error after the assembling between motor output shaft 1 and each bearing, the axle sleeve 8, can reduce motor owing to uneven electromagnetic noise and the vibration that produces of air gap.And, the setting of the 3rd bearing 14, vibration and noise that the vibration that produces at motor cavity in the time of can further carrying, absorb and slow down from motor output shaft 1 and clutch shaft bearing 6 with 2 rotations of second bearing and echo cause noise and other related members improve the motor running stability.
In the concrete structural design of the present invention, the 3rd bearing 14 is located between clutch shaft bearing 6 and second bearing 2, fits mutually or is set in distance with any one bearing in clutch shaft bearing 6 or second bearing 2.Referring to Fig. 3 and Fig. 4, in the preferred embodiment of the invention, the 3rd bearing 14 is located at the equipped at outlet port of motor output shaft 1, namely be positioned at motor output shaft 1 in the outward extending exit position of motor cavity, with the 2 adjacent settings of second bearing, and be arranged at the inboard of second bearing 2 and fit with it, namely be positioned at the side relative with clutch shaft bearing 6.Like this, owing to being stretched out by equipped at outlet port, motor output shaft 1 is connected with drive disk assembly on the one hand, so it is big that the vibration of this delivery outlet position compares to the vibration of output shaft 1 end, absorb when the 3rd bearing 14 arranges herein and vibrations and noise effects when slowing down the motor operation better, when especially being located at the position between clutch shaft bearing 6 and second bearing 2, more be conducive to absorb from rotating the echo that causes because of two rolling bearings in the motor cavity, on the other hand, this position is provided with the location and installation that is beneficial to the 3rd bearing 14 and the replacing of member.
In the embodiment of the invention structure, described clutch shaft bearing 6 and second bearing 2 all adopt rolling bearing.Rolling bearing is the very high part of standardization level, and interchangeability is good, and operation and maintenance is very convenient, reliable operation, and starting performance and bearing capacity are higher.The inner ring of two rolling bearings and motor output shaft 1 match and merge rotation therewith, and the outer ring cooperates fixing with axle sleeve 8; Described the 3rd bearing 14 can adopt stable working, reliable, muting sliding bearing, also can adopt rolling bearing.Because clutch shaft bearing and second bearing 2 have certain sound when adopting rolling bearing to turn round when high speed, the present invention adopts the 3rd bearing 14 to make up the noise that produces when configuration can absorb and slow down from this running with it, because the main purpose that the 3rd bearing 14 is set is for vibration damping, rather than use according to itself intrinsic function fully, so require and to hang down to itself and motor output shaft 1 with in the assembly precision of other parts, can have certain microgap, avoid influencing the behavior in service of clutch shaft bearing 6 and second bearing 2.In addition, when the 3rd bearing 14 was selected sliding bearing or rolling bearing for use, because it also is the very high part of standardization level, interchangeability was good, so can realize the technique effect of noise reduction vibration damping with minimum cost.
Can select oiliness bearing, nylon bearing or rubber shaft bearing for use when particularly, the present invention's the 3rd bearing 14 adopts sliding bearing.Wherein oiliness bearing is primary raw material with the metal dust, with the porous sintered article that powder metallurgic method is made, can utilize the porousness of sintered body, makes it impregnation 10%-40% (volume fraction) lubricating oil, in using under the fuel feeding state voluntarily.During motor rotation, its bearing temperature raises, because the coefficient of expansion of oil is bigger than metal, thereby can enter output shaft 1 surface automatically with lubricating bearings, oil is again with the temperature sucked back hole that descends when quitting work.Nylon bearing has very high mechanical strength, the softening point height, and heat-resisting, coefficient of friction is low, and self lubricity, shock absorption, noise reduction and electrical insulating property are good, and it is wear-resisting that to undermine corrosion resistance strong; Rubber shaft bearing not only has higher shock-absorbing, damping performance, and has excellent friction and wear performance, usually can use no or little lubricant, and useful life is longer.
Further as shown in Figures 2 and 3, the present invention's the 3rd bearing 14 also can arrange groove when using sliding bearing, removable malthoid 141 is housed in the groove.Like this, by using lubricating oil as lubricant and drag reducer, vibration in the time of not only can absorbing and slow down the motor operation, noise when reducing the operation of two rolling bearings, and, the further combination of malthoid 141 and groove structure also can improve the reliability that sliding bearing uses, and prolongs the useful life of sliding bearing.Certainly, the 3rd bearing 14 includes but not limited to the above-mentioned type, also can adopt other elements with similar functions, more can design special vibration-proof structure, is not giving unnecessary details at this.
As the mounting structure of each bearing, in the design of axle sleeve 8 of the present invention, its external diameter can be set concrete tolerance, carries out tight fit with stator 5 centre bores and is connected, and makes it to be pressed in stator 5 centre bores fixing; Perhaps, make described axle sleeve 8 and stator 5 centre bores be fixed in one by the key connected mode, certainly, axle sleeve 8 gaps can also be inserted in behind stator 5 centre bores by PUR or other mode bonding connections.Be appreciated that ground, aforementioned dual mode can be used in combination with the third mode, makes axle sleeve 8 more firm with the combination of stator 5, the vibration that bring in the gap that produces because of error when avoiding both to cooperate.
Further referring to Fig. 2, in axle sleeve 8 example structure shown in its figure, two ends at described axle sleeve 8, offer first installing hole 81 and second installing hole 82 respectively, wherein first installing hole 81 is used for the location and clutch shaft bearing 6 is installed, second installing hole 82 is used for the location and second bearing 2 and the 3rd bearing 14 is installed, wherein first installing hole 81 is provided with first stop surface 811, the medial extremity of clutch shaft bearing 6 is positioned on this first stop surface 811 by the outer ring, and its outboard end is by back-up ring assembly 7 or electric motor end cap 3 fixing (Fig. 3 and employing back-up ring assembly 7 backstops shown in Figure 4 are the inner ring of clutch shaft bearing 6 fixedly); Described second installing hole 82 is provided with second stop surface 821, sliding bearing 14 and clutch shaft bearing 6 relative sides are positioned on this second stop surface 821, second bearing 2 and the sliding bearing 14 adjacent and settings of fitting, the outside of second bearing 2 is by being resisted against back-up ring assembly or the sleeve on its inner ring or directly fixing (inner ring of Fig. 3 and second bearing 2 shown in Figure 4 adopts sleeve 15 and end cap 3 backstops to fix) by electric motor end cap.Because above-mentioned two bearings installing hole is on same axle sleeve 8, can carry out hole processing at same procedure, same location benchmark, not only brought the convenience of processing, reduced processing cost, but also can guarantee axiality between two installing holes, thereby the axiality that reduces after each bearing assembling is poor, has reduced bigger vibration and the noise of generation when making motor rotation.
Particularly, among Fig. 3 of the present invention and the embodiment shown in Figure 4, described back-up ring assembly 7 comprises two concave surfaces relative and the disk spring 71 of superimposed setting and the elastic washers 72 of being located at two butterfly springs, 71 outer ends, and elastic washer 72 is arranged in the cannelure of offering motor output shaft 1 end.Adopt butterfly spring 71 and the Combination Design that is arranged in the elastic washer 72 of motor output shaft 1 end, both can be used as the location stop dog component in clutch shaft bearing 6 outsides, also can bear static state or dynamic load from clutch shaft bearing 6 axial action simultaneously, butterfly spring 71 also has mechanical strength preferably relatively during superimposed the setting.
Certainly, the layout of described the 3rd bearing 14 on axle sleeve 8 also can be located at the inboard of clutch shaft bearing 6, fit or be set in distance (not shown) with clutch shaft bearing 6, when arranging at interval between the two available sleeve separate.In this execution mode, two ends at described axle sleeve, can offer first installing hole and second installing hole respectively equally, wherein first installing hole is used for the location and clutch shaft bearing and the 3rd bearing is installed, second installing hole is used for the location and second bearing is installed, the medial extremity of the 3rd bearing is positioned on the stop surface of first installing hole, and the clutch shaft bearing outboard end is fixed by the back-up ring assembly; The side that second bearing is relative with the 3rd bearing is positioned on the stop surface of second installing hole.This structure, because the 3rd bearing is equally between clutch shaft bearing and second bearing, compare with Fig. 3, Fig. 4 structure, just axle sleeve is conducive to improve the effect of vibration-absorbing denoising equally in stator 5 centre bore installation direction differences.
Be appreciated that ground, the 3rd bearing 14 also can be positioned at the outside of second bearing 2 and fit with it, perhaps, is set in distance (not shown) with second bearing 2, and available sleeve separates between the two.In one execution mode of back, two ends at described axle sleeve 8, can offer first installing hole and second installing hole respectively equally, wherein first installing hole is used for the location and clutch shaft bearing is installed, second installing hole is used for the location and second bearing is installed, the medial extremity of clutch shaft bearing is positioned by the outer ring on the stop surface of first installing hole, and its outboard end is fixed by the back-up ring assembly; The side that second bearing is relative with clutch shaft bearing is positioned on the stop surface of second installing hole, simultaneously, the 3rd bearing can be arranged in the location hole that correspondence is offered on the electric motor end cap, the side relative with second bearing arranges a sleeve, and the outside of second bearing and the inboard of the 3rd bearing are fixed by sleeve simultaneously.This tactic pattern, both can absorb a part and rotated the vibration that brings by two rolling bearings, also can carry the vibration that produces when being rotated by rotor banding moved end lid with absorption portion, vibration in the time of can slowing down the motor operation equally and reduction noise also are conducive to assembling and the replacing of two Mounting of Rolling Contact Bearing and debugging and the 3rd bearing.
Certainly, the combination of axle sleeve and each bearing is not restricted to said structure pattern and set-up mode, so long as can realize vibration damping and decrease of noise functions, all belongs among the above-mentioned scope.
Referring to Fig. 3 and Fig. 4, in the external rotor electric machine structure provided by the invention, the two side ends of described stator 5 and rotor 4 arranges end cap 3 and fixed support 16, wherein fixed support 16 is provided with a plurality of fixing holes, can whole motor be installed on exhaust equipment by fixtures such as bolts, the air-conditioning unit, on the installation site that air cleaning system and cooling device etc. arrange, end cap 3 is positioned at the equipped at outlet port of output shaft 1, wherein feel at ease the sleeve 15 that can be connected with motor output shaft 1 is housed, this sleeve 15 also can be used as the align member of backstop second bearing 2 outboard ends simultaneously, and motor output shaft 1 passes through described sleeve 15 centers and stretches out.
As the preferred a kind of execution mode of the present invention, described fixed support 16 can adopt nonmetallic materials, by the plastic cement injection mo(u)lding, and in injection molding process, can introduce glue in the cavity of end cap 3 and fixed support 16 cappings by runner, the winding 13 that places stator 5 outsides is packaged in stator 4 sides, and axle sleeve 8 peripheries and stator 5 center bore inner walls bonding are fixing, and fixed support 16 and stator 5 two side ends and axle sleeve 8 are connected as a single entity.This structure; effectively guaranteed winding 13 good fixing on stator 5 on the one hand; do not have between winding 13 and the stator 5 and relatively move; there are enough mechanical strengths to resist vibration and stress; avoid mechanical damage; also can effectively protect winding 13 simultaneously; avoid winding 13 short circuits; phenomenons such as puncture; and owing to do not need connector to fix between fixed support 16 and the stator 5; the vibration of when also having avoided motor rotation because the fit-up gap that connects by connector between fixed support 16 and the stator 5 generation; also can make simultaneously to form large-area the connection between fixed support 16 and the stator 5, guarantee connection stability between fixed support 16 and the stator 5.On the other hand, can make to cooperate no gap between bearing 8 and the stator 5 that it is more firm to connect, and equally also can improve its mechanical strength, reduce each bearing and rotate the influence that stator 5 is produced.In addition, because glue coats winding 13 and stator 5 both sides after solidifying fully, also can avoid moisture and ambient temperature to the influence of stator 5, to ensure motor operation reliably for a long time.
Further referring to Fig. 3 and Fig. 4, on two side planes of described stator 5, also be respectively arranged with baffle ring 10, in described rotor 4 peripheries, also be coated with shell 11, can play protective action to rotor 4.In addition, the junction at shell 11 and fixed support 16 also is provided with water proof ring 16, can prevent the useful life that extraneous moisture reduces motor to the invasion and attack of stator 5 and rotor 4.
The above only is preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. external rotor electric machine, comprise the stator with centre bore and wear the motor output shaft that is fixed in the described stator center hole, be spacing on the described motor output shaft and be provided with clutch shaft bearing and second bearing, described clutch shaft bearing and described second bearing respectively location and installation in one with axle sleeve that described stator center hole cooperates in, it is characterized in that, on described output shaft, also be provided with the 3rd bearing.
2. external rotor electric machine as claimed in claim 1 is characterized in that, described the 3rd bearing is located between described clutch shaft bearing or second bearing, and with described clutch shaft bearing or second bearing in any one bearing fit mutually or be set in distance.
3. external rotor electric machine as claimed in claim 2, it is characterized in that, described axle sleeve two ends offer respectively for the installing hole of placing described clutch shaft bearing and described second bearing and described the 3rd bearing, and wherein said the 3rd bearing and described second bearing are fitted mutually or be spacing to be arranged at same installing hole interior and be positioned at described motor output shaft equipped at outlet port.
4. external rotor electric machine as claimed in claim 2, it is characterized in that, described axle sleeve two ends offer respectively for the installing hole of placing described clutch shaft bearing and described second bearing and described the 3rd bearing, and wherein said the 3rd bearing and described clutch shaft bearing are fitted mutually or be spacing to be arranged at same installing hole interior and be positioned at described motor output shaft end.
5. as each described external rotor electric machine of claim 1-4, it is characterized in that described clutch shaft bearing and second bearing are rolling bearing.
6. external rotor electric machine as claimed in claim 5 is characterized in that, described the 3rd bearing is sliding bearing or rolling bearing.
7. external rotor electric machine as claimed in claim 6 is characterized in that, described sliding bearing is oiliness bearing, nylon bearing or rubber shaft bearing.
8. as claim 6 or 7 described external rotor electric machines, it is characterized in that, install malthoid on the described sliding bearing.
9. external rotor electric machine as claimed in claim 8 is characterized in that, and is also fluted on the described sliding bearing, and described malthoid is housed in the described groove.
10. external rotor electric machine as claimed in claim 1 or 2, it is characterized in that, described stator two ends arrange fixed support and end cap respectively, described fixed support injection mo(u)lding and will be around in the winding encapsulation on the described stator and described fixed support, described axle sleeve and described stator are connected in one by introducing by the plastic rubber material in the cavity of described end cap and described fixed support capping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310167439.9A CN103248163B (en) | 2013-05-08 | 2013-05-08 | External rotor electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310167439.9A CN103248163B (en) | 2013-05-08 | 2013-05-08 | External rotor electric machine |
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| Publication Number | Publication Date |
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| CN103248163A true CN103248163A (en) | 2013-08-14 |
| CN103248163B CN103248163B (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310167439.9A Active CN103248163B (en) | 2013-05-08 | 2013-05-08 | External rotor electric machine |
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| CN104467254A (en) * | 2013-09-19 | 2015-03-25 | 博泽沃尔兹堡汽车零部件有限公司 | Electric drive |
| CN106451895A (en) * | 2016-11-30 | 2017-02-22 | 桂林智神信息技术有限公司 | Damping type motor |
| CN107742934A (en) * | 2017-12-05 | 2018-02-27 | 常州富兴机电有限公司 | A kind of outer rotor motor structure with pre-load nut |
| CN108768010A (en) * | 2018-08-16 | 2018-11-06 | 深圳市海普智能装备技术有限公司 | Motor and driving device |
| CN109088506A (en) * | 2018-08-26 | 2018-12-25 | 陈良培 | A kind of mute motor for cervical massager |
| EP3490114A4 (en) * | 2016-07-19 | 2020-02-19 | LG Innotek Co., Ltd. | Fan motor and vehicle comprising same |
| US10782151B2 (en) | 2016-07-19 | 2020-09-22 | Lg Innotek Co., Ltd. | Sensor device |
| WO2021114897A1 (en) * | 2019-12-12 | 2021-06-17 | 苏州宝时得电动工具有限公司 | Electric tool |
| CN113028118A (en) * | 2021-03-04 | 2021-06-25 | 绍兴艾柯电气有限公司 | Stepping motor and gas valve device |
| CN114243981A (en) * | 2022-01-10 | 2022-03-25 | 卧龙电气驱动集团股份有限公司 | Permanent magnet outer rotor motor |
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| US10782151B2 (en) | 2016-07-19 | 2020-09-22 | Lg Innotek Co., Ltd. | Sensor device |
| CN106451895A (en) * | 2016-11-30 | 2017-02-22 | 桂林智神信息技术有限公司 | Damping type motor |
| CN107742934A (en) * | 2017-12-05 | 2018-02-27 | 常州富兴机电有限公司 | A kind of outer rotor motor structure with pre-load nut |
| CN107742934B (en) * | 2017-12-05 | 2024-05-03 | 常州富兴机电有限公司 | Outer rotor motor structure with pre-tightening nut |
| CN108768010A (en) * | 2018-08-16 | 2018-11-06 | 深圳市海普智能装备技术有限公司 | Motor and driving device |
| CN108768010B (en) * | 2018-08-16 | 2024-01-02 | 奥茵绅智能装备(苏州)有限公司 | Motor and driving device |
| CN109088506B (en) * | 2018-08-26 | 2020-09-04 | 浙江自然啄木鸟鞋业有限公司 | A silence motor for cervical vertebra massager |
| CN109088506A (en) * | 2018-08-26 | 2018-12-25 | 陈良培 | A kind of mute motor for cervical massager |
| WO2021114897A1 (en) * | 2019-12-12 | 2021-06-17 | 苏州宝时得电动工具有限公司 | Electric tool |
| CN113028118A (en) * | 2021-03-04 | 2021-06-25 | 绍兴艾柯电气有限公司 | Stepping motor and gas valve device |
| CN114243981A (en) * | 2022-01-10 | 2022-03-25 | 卧龙电气驱动集团股份有限公司 | Permanent magnet outer rotor motor |
| CN114243981B (en) * | 2022-01-10 | 2023-05-12 | 卧龙电气驱动集团股份有限公司 | Permanent magnet outer rotor motor |
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