CN207706018U - External rotor electric machine and electric roller skating - Google Patents
External rotor electric machine and electric roller skating Download PDFInfo
- Publication number
- CN207706018U CN207706018U CN201721679340.7U CN201721679340U CN207706018U CN 207706018 U CN207706018 U CN 207706018U CN 201721679340 U CN201721679340 U CN 201721679340U CN 207706018 U CN207706018 U CN 207706018U
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- stator
- transcapsidation
- end cap
- electric machine
- external rotor
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Abstract
The utility model discloses a kind of external rotor electric machines, including transcapsidation in a ring；Rotor endcap after rotor endcap is set to one end of transcapsidation, forms accommodating chamber between rotor endcap and transcapsidation；Magnet steel in accommodating chamber and the iron core for being equipped with winding, magnet steel fit on the inner peripheral surface of transcapsidation；One end of the rotor endcap is equipped with the pillar being located in the accommodating chamber；Further include：Stator support in accommodating chamber, stator support is arranged on the pillar and pillar relative stator holder is rotatable, and the iron core adapts on stator support and iron core is between the magnet steel and stator support；It is set to the stator end cap of stator support end, stator end cap is located at the other end of transcapsidation and is equipped with gap between stator end cap and transcapsidation, and when the electromagnetic torque that iron core generates after being powered makes transcapsidation and rotor endcap rotate, the rotating speed of stator end cap is zero.The external rotor electric machine of the utility model, which has the advantages that apply, obtains new breakthrough.
Description
Technical field
The utility model is related to technical field of motors, and in particular to a kind of external rotor electric machine and electric roller skating.
Background technology
Being widely used for wheel hub motor is general, such as on electric bicycle, on electrodynamic balance vehicle etc..
The utility model patent of Publication No. CN202260955U, discloses a kind of wheel hub motor, including motor shaft and solid
It is scheduled on stator thereon, is arranged with rotor case outside stator, the front and rear ends of rotor case pass through rotor endcap and bearing respectively
Rotatable to be fixed on motor shaft, the outside of rotor endcap is connected with hub brake component, and rotor case is connected with wheel hub, and described turns
Subshell is rotated centered on the axis of motor shaft, and rotor endcap relatively rotates with motor shaft.
The patent of invention of Publication No. CN104958894A discloses a kind of electrodynamic balance vehicle, has on the electrodynamic balance vehicle
There are two wheel hub motor, longitudinally mounted wheel hub motor is then fixed in inner cover left and right sides edge position, in the inner cover
Between position rotating mechanism is installed and can be rotated around rotational structure.That is, the opposite both ends of the inner cover and the wheel hub motor are solid
Fixed connection, and the inner cover is realized by rotational structure and is rotated.It is apparent that when this wheel hub motor work, wheel hub and installation
End cap on two axial end faces of wheel hub is rotated together in company with wheel hub, and the axis that the heart in the hub is arranged does not turn.
For the wheel hub motor of above two structure, when wheel hub motor works, axis is not turn relative to wheel hub and end cap
Dynamic, the tire being mounted on wheel hub circumferential surface when hub rotation and ground make moving axis be transported with respect to ground under friction force
It is dynamic, to form movement with respect to ground by the object of In-wheel motor driving.It is to be mounted on hub spindle to be driven when hub rotation
The form that end cap on end face is rotated, the wheel hub motor of this spline structure can only be with institute by the object of In-wheel motor driving
The axis connection stated, from the point of view of the wheel hub motor retrieved according to applicant (for example, be disclosed as CN1826718A, CN101877524A,
The patents such as CN103944305A), all wheel hub motor is with hub rotation to drive two end caps rotations at present, and center
The motionless structure type of axis, therefore, structure type relatively fixedization of current wheel hub motor, if continued in hub rotation band
The structure type of dynamic two end caps rotation carries out the research and development of wheel hub motor, it is difficult to which it is new so that the structure of wheel hub motor and application is obtained
Breakthrough.
Invention content
The purpose of this utility model is to provide the external rotor electrics that stator end cap when a kind of rotor rotates remains static
Machine.
A kind of external rotor electric machine, including transcapsidation in a ring；
Rotor endcap after rotor endcap is set to one end of transcapsidation, forms accommodating chamber between rotor endcap and transcapsidation；
Magnet steel in accommodating chamber and the iron core for being equipped with winding, magnet steel fit on the inner peripheral surface of transcapsidation；
One end of the rotor endcap is equipped with the pillar being located in the accommodating chamber；Further include：
Stator support in accommodating chamber, stator support is arranged on the pillar and pillar relative stator holder can revolve
Turn, the iron core adapts on stator support and iron core is between the magnet steel and stator support；
It is set to the stator end cap of stator support end, stator end cap is located at the other end of transcapsidation and stator end cap and transcapsidation
Between be equipped with gap, when the electromagnetic torque that generates makes transcapsidation and rotor endcap rotate after iron core is powered, the rotating speed of stator end cap
It is zero.
The advantages of external rotor electric machine of the utility model is：It is propped up by axis in the centrally disposed axis of motor due to being omitted
Other driven objects are supportted, when the external rotor electric machine of the utility model works, stator end cap is to be in static state, because
This, can install driven object and stator end cap, and tradition has been overturned to the external rotor electric machine of the utility model
The frame mode of external rotor electric machine or wheel hub motor, at the same the application of the external rotor electric machine of the utility model can also obtain it is new
It breaks through.
It is good that the further object of the utility model is that the external rotor electric machine based on the utility model provides a kind of safety
Electric roller skating.
A kind of electric roller skating includes the external rotor electric machine as described in claim 1 to 6 any one；
Tire, the tire are coated on the outer circumference surface of the transcapsidation of external rotor electric machine；
Foot pedal, one end of the foot pedal and the stator end cap of external rotor electric machine connect；
The hinged wheel with foot pedal, so that wheel can be rotated relative to foot pedal；
Under use state, the other end of foot pedal is along the axially extending of external rotor electric machine, the axial direction and external rotor electric of wheel
The axial direction of machine is parallel.
The advantages of the utility model electric roller skating is：Electric roller skating in use, external rotor electric machine and is mounted on
Tire support on external rotor electric machine on the ground, becomes and is supported at one, and the wheel installed on the footrests becomes another place's branch
Support, due to the axial direction of wheel with the axial direction of external rotor electric machine be it is parallel, at two under the supporting role in gap so that electricity
The stability that driving wheel is slided is more preferable, and electric roller skating is also safer in use.The electric roller skating of the utility model, even if with
Before will not use roller skate in use, can also use, have the advantages that wide application of the crowd.
Description of the drawings
Fig. 1 is the outline structural diagram of the external rotor electric machine of the utility model；
Fig. 2 is that the schematic diagram after stator end cap is concealed on the basis of Fig. 1；
Fig. 3 is the cross-sectional view of Fig. 1；
Fig. 4 is the transcapsidation of the utility model and the schematic diagram that rotor endcap combines；
Fig. 5 is the structural schematic diagram of the stator support in the utility model；
Fig. 6 is the structural schematic diagram of the stator end cap in the utility model；
Fig. 7 is that the structural schematic diagram after tire is installed on the basis of Fig. 1；
Fig. 8 is the cross-sectional view of Fig. 7；
Fig. 9 is embodied as the structural schematic diagram of electric roller skating for the external rotor electric machine in the utility model；
Figure 10 is a kind of schematic diagram of embodiment when electric roller skating uses；
Figure 11 is that elastic fit circle and mounting portion are combined into one cross-sectional view
Label in attached drawing 1 to 10：
A is external rotor electric machine, and B is electric roller skating, and C is foot；
10 be transcapsidation, and 11 be accommodating chamber, and 12 be flange, and 13 be annular groove, and 20 be rotor endcap, and 21 be pillar, and 22 be axis
It holds, 30 be magnet steel, and 40 be iron core, and 50 be stator support, and 51 be mounting hole, and 52 be mounting base, and 53 be cavity, and 54 be casing, 55
For ringwall, 60 be stator end cap, and 61 be pilot hole, and 62 be elastic fit circle, and 63 be annular groove, and 70 be battery, and 80 be circuit board, 90
It is foot pedal for tire, 100,101 be the component for fettering foot, and 102 be parking component, and 110 be wheel, and 120 be trim ring.
Specific implementation mode
As shown in Figures 1 to 6, the external rotor electric machine A of the utility model, including transcapsidation 10 in a ring, rotor endcap 20,
Magnet steel 30, the iron core 40 for being equipped with winding, stator support 50, stator end cap 60, elastic fit circle 62, trim ring 120, separately below
Correlation to each section and between them is described in detail：
As shown in Figures 2 to 4, after rotor endcap 20 is set to one end of transcapsidation 10, between rotor endcap 20 and transcapsidation 10
Form accommodating chamber 11；One end of the rotor endcap 20 is equipped with the pillar 21 being located in the accommodating chamber 11, which is used for
It is assembled with stator support 50, so that stator support 50 can be supported.In one or more specific embodiments, rotor
End cap 20 preferentially uses integrally formed mode, pillar 21 also preferentially to use integrally formed side with rotor endcap 20 with transcapsidation 10
Formula, one end and the end cap 20 of pillar 21 are integrally formed, and the other end of pillar 21 is free end, and the other end of pillar 21 is equipped with blind
Hole, the preferably wall surface of the hole of the blind hole are equipped with screw thread, and the structure shape of two-stage step is preferentially used on the outer circumference surface of pillar 21
Formula, the i.e. outer diameter of one end of pillar 21 are more than the outer diameter of the pillar other end, in this way, assembling two internal diameter differences on pillar 21
Bearing, in order to be supported to holder 50.
As shown in figure 3, magnet steel 30 is located in accommodating chamber 11, magnet steel 30 fits on the inner peripheral surface of transcapsidation 10, i.e. magnet steel
30 are fixed on the inner peripheral surface of transcapsidation 10.The iron core 40 for being equipped with winding is located in accommodating chamber 11, is embedded on iron core 40
Winding generates induced electromotive force after being powered, and electromagnetic torque is generated after forming rotating excitation field between iron core 40 and magnet steel 30, to
Transcapsidation 10 is set to rotate, rotor endcap 30 is then rotated in company with transcapsidation 10.
As shown in figures 1 and 3, stator support 50 is located in accommodating chamber 11, and stator support 50 is arranged on the pillar 21
And 21 relative stator holder 50 of pillar is rotatable, one end of stator support 50 is equipped with the mounting hole 51 for installing the pillar, pillar
Bearing 22 is installed, bearing 22 fits in the mounting hole 51, in this way, 21 relative stator holder 50 of pillar can revolve on 21
Turn.The iron core 40 adapts on stator support 50 and iron core 50 is between the magnet steel 30 and stator support 50, stator branch
The circumferential shape of frame 50 is circle.
As shown in Figure 3 and Figure 5, stator end cap 60 is set to the end of stator support 50, and stator end cap 60 is preferentially using tight
Firmware is fixedly connected with stator support 50, and the fastener preferentially uses screw, can also use rivet, pin etc..Stator end cap
60 can also be fixedly connected by the way of welding with stator support 50.The axial end face of the stator end cap 60 is equipped with multiple
Pilot hole 61, the stator support 50 are equipped with multiple mounting bases 52, and mounting base 52 is equipped with hole, and each mounting base 52 is accordingly
It extend on stator end cap 60 pilot hole 61, mounting base 52 forms clearance fit with pilot hole 61, when needs are being incited somebody to action
When other objects are mounted on external rotor electric machine A, the object is attached by the fasteners such as screw and mounting base 52, to
The object is fixed on external rotor electric machine A.
As shown in Figure 3 and Figure 5, in one or more specific embodiments, the other end of stator support 50 be equipped with along
The cavity 53 of stator support axial recess, mounting hole 51 extend through in cavity 53, after setting cavity 53, on stator support 50
The effective height of mounting hole 51 reduce, therefore the sleeve 54 being looped around around the mounting hole aperture is equipped in the cavity 53,
In this way, the column for being cased with bearing 22 is extend into sleeve 54, ensured between pillar 21 and stator support 50 by casing 54
Assembly.
Further include battery 70 and the electricity with control circuit as shown in figure 3, in one or more specific embodiments
Road plate 80, battery 70 are set in the cavity 53, and circuit board 80 is electrically connected with battery 70, the output end and iron core of circuit board 80
Winding electrical connection on 40.Battery 70 and circuit board 80 are integrated in external rotor electric machine A so that be not necessarily to by such mode
External rotor electric machine A is without external power supply, that is, operable.Conventional circuit, example may be used in control circuit on circuit board 80
Such as, the control circuit on electric bicycle or the control circuit on electrodynamic balance vehicle, however, as by battery 70 and circuit
Plate 80 is integrated in for the mode inside external rotor electric machine A, and control circuit plate 80 controls the output of battery current, best mode
To be manipulated by wireless form, that is, the people used only needs to have a hand-held device for being similar to remote control transmitter,
Gear is set on the hand-held device, often selects a gear, represents the rotating speed of control external rotor electric machine A, and on circuit board 80
Be provided with remote signal receiver, after remote signal receiver receives the signal, by the processor in control circuit into
Row identification, adjusts the size of output current, to change the rotating speed of external rotor electric machine A.
As shown in figure 3, trim ring 120 is fixed on transcapsidation on the end face of stator end cap, trim ring 120 and stator end cap 60 it
Between there are gap, the outer circumference surface of the transcapsidation 10 is equipped with the flange 12 radially extended along the transcapsidation, the trim ring 120 along
Transcapsidation 10 extends radially into other than 10 outer circumference surface of transcapsidation, and one is formed between trim ring 120 and flange 12 and transcapsidation 10
Annular groove 13.
In the present invention, when being rotated due to transcapsidation 10, stator end cap 60 is static, and in transcapsidation 10 and stator terminal
Sealing is realized between lid 60, if being directly the purpose for being unable to reach sealing using conventional O-ring seals, therefore, this
Utility model provides a kind of elastic fit circle 62 with the cooperation of trim ring 120 to achieve the purpose that sealing.As in figs. 3 and 11,
One end of the elastic fit circle 62 is pressed on the end face of trim ring 120, and the other end of elastic fit circle 62 is equipped with mounting portion 62a,
The mounting portion is fixedly connected with stator end cap 60, is formed one between elastic fit circle 62 and mounting portion 62a and is less than 90 degree
Angle, it is preferable that elastic fit circle 62 is identical as the length of mounting portion, and the folder between elastic fit circle 62 and mounting portion 62a
Angle is 30 to 60 degree, and preferred mode is that the angle between elastic fit circle 62 and mounting portion is 50 degree.And in elastic fit
After forming the angle less than 90 degree between circle 62 and mounting portion, in addition elastic fit circle 62 is identical as the length of mounting portion, therefore,
Elastic fit circle 62 and mounting portion 62a forms the sealing ring that a section is V-shaped.Elastic fit circle 62 and mounting portion 62a
It is preferentially made using rubber material and using integrally formed mode, between existing between stator end cap and 60 and transcapsidation 10
Gap, when trim ring 120 is rotated with transcapsidation 10, after being pressed on trim ring 120 by elastic fit circle 62, first to the rotation of transcapsidation
Limitation is not generated, while playing the role of sealing again, prevents dust and water from being adversely affected to iron core 40.Since elasticity is pasted
Closing circle 62 has elasticity, can be bonded well with the formation of trim ring 120, can make up the foozle of stator end cap 60, and
Occupied space is also small.
As shown in figure 3, a part for stator end cap 60 is located at the outside of accommodating chamber 11, stator end cap 60 is located at transcapsidation 10
Between the other end and stator end cap 60 and transcapsidation 10 be equipped with gap, the electromagnetic torque generated after iron core 40 is powered make transcapsidation 10 with
And when the rotation of rotor endcap 20, it is fixed that the gap between stator end cap 60 and transcapsidation 10 avoids the active force of the rotation of transcapsidation 10 from being transmitted to
Sub- end cap 60, therefore, stator end cap would not also be rotated with transcapsidation 10, be zero to the rotating speed of stator end cap 60, i.e., relatively
For the transcapsidation of rotation, stator end cap 60 is stationary.It is apparent that the external rotor electric machine A of this structure, due to being omitted
Other driven objects are supported by axis in the centrally disposed axis of motor, due to the external rotor electric machine A works of the utility model
When making, stator end cap is therefore can to install driven object and stator end cap 60 in static state, from
And the external rotor electric machine A of the utility model has overturned the frame mode of traditional external rotor electric machine A or wheel hub motor, while this reality
New breakthrough has been obtained with the application of novel external rotor electric machine A.
As shown in Figure 7 to 10, the electric roller skating B of the utility model, including the external rotor electric machine in the above embodiment
A, tire 90, foot pedal 100 and the hinged wheel 110 of foot pedal are so that wheel 110 can be rotated relative to foot pedal 100；Below to them
Between relationship be described in detail：
As shown in Figure 7 and Figure 8, tire 90 is coated on the outer circumference surface of transcapsidation 10 of external rotor electric machine A, due in trim ring
An annular groove 13 is formed between 120 and flange 12 and transcapsidation 10, a part for the tire 90 is located in the annular groove 13,
The part that tire 90 is located in annular groove 13 is clamped by the flange 12 and trim ring 120, to install tire 90 securely
In transcapsidation 10.
As shown in figure 9, one end of foot pedal 100 is connect with the stator end cap 60 of external rotor electric machine A, foot pedal 100 with it is fixed
The connection type of sub- end cap 60 may be a fixed connection mode, can also be movable connection method, in the present embodiment, foot pedal
100 use movable connection type with stator end cap 60, which preferentially uses articulated manner, for example, in stator
Hinge is installed on end cap 60, which is fastened by screw and mounting base 52, and foot pedal 100 is attached with hinge again.
Since foot pedal 100 and stator end cap 60 use movable connection type, under movable connection type, work as Electric Motor Wheel
When sliding B be in use state, the other end of foot pedal 100 along the axially extending of external rotor electric machine A, take turns 110 axial direction with outside
The axial direction of rotor electric machine A is parallel, in this way, the foot C of people may stand in foot pedal 100, (two foot C of people respectively use an electricity above
Driving wheel slides B), when external rotor electric machine A works, electromagnetic torque to form friction force between tire 90 and ground, is rubbing
Under the promotion for wiping active force so that the displacement with the displacement of external rotor electric machine A of foot pedal 100.And in movable connection side
Under formula, electric roller skating B can turn down foot pedal 100 under non-working condition to stator end cap 60, to receive foot pedal 100
Hold together, to reduce occupied space, entire electric roller skating B is facilitated to be stored, the electric roller skating B of the utility model can be placed on packet
In, therefore have the advantages that easy to carry, and arrive in office or family, electric roller skating B can be placed in drawer, be had
Store convenient advantage.
As shown in Figure 10, foot pedal 100 is equipped with the component 101 of constraint foot, and the component 101 of the constraint foot can be rope,
Can also be a part for band or shoes or shoes, when user feet station on foot pedal 100 after, pass through constraint
The component 101 of foot gets up foot C constraint, in this way, electric roller skating B is fixed as one with foot, when electric roller skating B when driving, increase
Safety, and on having bumpy road, the electric roller skating B of the utility model can directly wear electricity just as shoes
Driving wheel cunning B walks as usually walking, and is held away with hand without taking off electric roller skating B, and electricity in the prior art
Dynamic balancing vehicle is that user is needed to get off from electrodynamic balance, electrodynamic balance vehicle is had in arms away for there is bumpy road
, therefore, the electric roller skating B of the utility model can be adapted for more roads in use.
As shown in Figure 9 and Figure 10, it is additionally provided with parking component 102 on the foot pedal 100, which is located at foot
The rear portion of pedal 100, the height of parking component 102 are less than the height of wheel 110, and therefore, electric roller skating B is in normal driving process
In, parking component 102 is not contacted with ground, when needing parking, is contacted with ground by parking component 102, in parking
Under the friction force of component 102 so that the electric roller skating B of parking can slow down；Or when having on bumpy road, pass through
Parking component 102 is contacted with ground, can prevent electric roller skating B when user walks under the support of parking component 102
Make wheel 110 and external rotor electric machine A rotations under the friction force of generation, can in the process of walking be fallen down to avoid user.
Parking component 102 is preferentially made of worn plastic or rubber, and the shape of parking component 102 is preferentially using trapezoidal.
The external rotor electric machine A of the utility model is combined to form electric roller skating A with foot pedal 100 and wheel 110, only to this
The explanation that the one of which of the external rotor electric machine A of utility model is preferably applied, but it is actual in use, outer turn of the utility model
Sub- A is not limited to the application in skidding, can also install flabellum additional on the outer circumference surface of wheel shell, forms fan, outer for this
The application of rotor electric machine widely no longer illustrates one by one herein.
Claims (10)
1. a kind of external rotor electric machine, including transcapsidation in a ring；
Rotor endcap after rotor endcap is set to one end of transcapsidation, forms accommodating chamber between rotor endcap and transcapsidation；
Magnet steel in accommodating chamber and the iron core for being equipped with winding, magnet steel fit on the inner peripheral surface of transcapsidation；
It is characterized in that, one end of the rotor endcap is equipped with the pillar being located in the accommodating chamber；Further include：
Stator support in accommodating chamber, stator support is arranged on the pillar and pillar relative stator holder is rotatable,
The iron core adapts on stator support and iron core is between the magnet steel and stator support；
It is set to the stator end cap of stator support end, stator end cap is located at the other end of transcapsidation and between stator end cap and transcapsidation
Equipped with gap, when the electromagnetic torque that iron core generates after being powered makes transcapsidation and rotor endcap rotate, the rotating speed of stator end cap is zero.
2. external rotor electric machine according to claim 1, which is characterized in that the stator end cap passes through fastener and stator branch
Frame is fixedly connected.
3. external rotor electric machine according to claim 1 or 2, which is characterized in that set on the axial end face of the stator end cap
There are multiple pilot holes, the stator support to be equipped with multiple mounting bases, each mounting base accordingly extend into what stator terminal covered
In one pilot hole.
4. external rotor electric machine according to claim 1 or 2, which is characterized in that one end of stator support is equipped with described in installation
The mounting hole of pillar, the other end of stator support are equipped with the cavity along stator support axial recess, and mounting hole extends through cavity
It is interior, the sleeve being looped around around the mounting hole aperture is equipped in cavity；
Further include battery and the circuit board with control circuit, battery is set in the cavity, and circuit board is electrically connected with battery
It connects, the output end of circuit board is electrically connected with the winding on iron core.
5. external rotor electric machine according to claim 4, which is characterized in that the stator support, which is equipped with, is located at the cavity
Interior ringwall, the battery and circuit board are located in ringwall area encompassed, and the stator terminal capping is to stator support
Axial end face is equipped with annular groove, and the ringwall is embedded into the annular groove that stator terminal covers close to the progress of ringwall area encompassed
Envelope.
6. external rotor electric machine according to claim 1, which is characterized in that further include：
Trim ring, trim ring are fixed on transcapsidation on the end face of stator end cap；
One end of elastic fit circle, the elastic fit circle is pressed on the end face of trim ring, and the other end of elastic fit circle is equipped with installation
Portion, the mounting portion are fixedly connected with stator end cap, and an angle for being less than 90 degree is formed between elastic fit circle and mounting portion.
7. a kind of electric roller skating, which is characterized in that include the external rotor electric machine as described in claim 1 to 6 any one；
Tire, the tire are coated on the outer circumference surface of the transcapsidation of external rotor electric machine；
Foot pedal, one end of the foot pedal and the stator end cap of external rotor electric machine connect；
The hinged wheel with foot pedal, so that wheel can be rotated relative to foot pedal；
Under use state, the other end of foot pedal along the axially extending of external rotor electric machine, the axial direction of wheel and external rotor electric machine
It is axial parallel.
8. electric roller skating according to claim 7, which is characterized in that the foot pedal is hinged with stator end cap, makes non-
Foot pedal is turned down to stator end cap under state.
9. electric roller skating according to claim 7, which is characterized in that the foot pedal is equipped with the component of constraint foot.
10. according to the electric roller skating described in claim 7 to 9 any one, which is characterized in that be additionally provided with and stay on the foot pedal
Vehicle component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721679340.7U CN207706018U (en) | 2017-12-06 | 2017-12-06 | External rotor electric machine and electric roller skating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721679340.7U CN207706018U (en) | 2017-12-06 | 2017-12-06 | External rotor electric machine and electric roller skating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207706018U true CN207706018U (en) | 2018-08-07 |
Family
ID=63025296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721679340.7U Active CN207706018U (en) | 2017-12-06 | 2017-12-06 | External rotor electric machine and electric roller skating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207706018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110982A (en) * | 2017-12-06 | 2018-06-01 | 江苏巨数智能科技有限公司 | External rotor electric machine and electric roller skating |
-
2017
- 2017-12-06 CN CN201721679340.7U patent/CN207706018U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110982A (en) * | 2017-12-06 | 2018-06-01 | 江苏巨数智能科技有限公司 | External rotor electric machine and electric roller skating |
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