CN108110982A - External rotor electric machine and electric roller skating - Google Patents
External rotor electric machine and electric roller skating Download PDFInfo
- Publication number
- CN108110982A CN108110982A CN201711275050.0A CN201711275050A CN108110982A CN 108110982 A CN108110982 A CN 108110982A CN 201711275050 A CN201711275050 A CN 201711275050A CN 108110982 A CN108110982 A CN 108110982A
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- China
- Prior art keywords
- stator
- transcapsidation
- electric machine
- end cap
- external rotor
- Prior art date
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 238000004804 winding Methods 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 8
- 230000005520 electrodynamics Effects 0.000 description 6
- 238000007789 sealing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
- A63C17/00—Roller skates; Skate-boards
- A63C17/04—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs
- A63C17/06—Roller skates; Skate-boards with wheels arranged otherwise than in two pairs single-track type
-
- 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
Abstract
The invention discloses a kind of external rotor electric machine, including transcapsidation in a ring；Rotor endcap after rotor endcap is arranged at 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 are fitted on the inner peripheral surface of transcapsidation；One end of the rotor endcap is equipped with the pillar being located in the accommodating chamber；It further includes：Stator support in accommodating chamber, stator support is arranged on the pillar and pillar relative stator stent is rotatable, and the iron core is adapted on stator support and iron core is between the magnet steel and stator support；The stator end cap of stator support end is arranged at, stator end cap is located at the other end of transcapsidation and gap is equipped between stator end cap and transcapsidation, and when the electromagnetic torque that iron core generates after being powered makes transcapsidation and rotor endcap rotation, the rotating speed of stator end cap is zero.The external rotor electric machine of the present invention, which has the advantages that apply, obtains new breakthrough.
Description
Technical field
The present invention relates 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 admittedly
Stator thereon is scheduled on, is arranged with rotor case outside stator, the front and rear ends of rotor case passes 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 edge position at left and right sides of the inner cover, in the inner cover
Between position rotating mechanism is installed can simultaneously be rotated around rotational structure.That is, the opposite both ends of described inner cover are consolidated with the wheel hub motor
Fixed connection, and the inner cover is realized by rotational structure and rotated.It is apparent that during this wheel hub motor work, wheel hub and installation
End cap on two axial end faces of wheel hub rotates together in company with wheel hub, and the axis for being arranged on hub centre does not turn.
For the wheel hub motor of above two structure, when wheel hub motor works, axis is not turn compared with wheel hub and end cap
Dynamic, when hub rotation, the tire on wheel hub circumferential surface under friction force, makes moving axis be transported with respect to ground with ground
It is dynamic, so as 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 during 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), wheel hub motors all at present is with hub rotation two end caps to be driven to rotate, 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 that dynamic two end caps rotate carries out the research and development of wheel hub motor, it is difficult to which the structure of wheel hub motor and application is made to obtain newly
Breakthrough.
The content of the invention
It is an object of the invention to provide the external rotor electric machines that stator end cap during a kind of rotation of rotor remains static.
A kind of external rotor electric machine, including transcapsidation in a ring；
Rotor endcap after rotor endcap is arranged at 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 are fitted on the inner peripheral surface of transcapsidation；
One end of the rotor endcap is equipped with the pillar being located in the accommodating chamber；It further includes：
Stator support in accommodating chamber, stator support is arranged on the pillar and pillar relative stator stent can revolve
Turn, the iron core is adapted on stator support and iron core is between the magnet steel and stator support；
It is arranged at 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 rotates transcapsidation and rotor endcap after iron core is powered, the rotating speed of stator end cap
It is zero.
The present invention external rotor electric machine the advantages of be：It is supported by axis in the centrally disposed axis of motor due to being omitted
His driven object, when external rotor electric machine of the invention works, stator end cap be in static state, therefore, can will
Driven object is installed with stator end cap, so as to the present invention external rotor electric machine overturned traditional external rotor electric machine or
The frame mode of wheel hub motor, while the application of the external rotor electric machine of the present invention can also obtain new breakthrough.
A further object of the present invention is that the external rotor electric machine based on the present invention provides a kind of good electric roller skating of security.
A kind of electric roller skating, including 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 electric roller skating of the present invention is：Electric roller skating in use, external rotor electric machine and turns mounted on outer
Tire support on sub-motor on the ground, becomes and is supported at one, and installs wheel on the footrests and supported as another place, by
It is parallel with the axial direction of external rotor electric machine in the axial direction of wheel, therefore, at two under the supporting role in gap so that electric roller skating
Stability it is more preferable, electric roller skating is also safer in use.The electric roller skating of the present invention, even if will not use in the past
Roller skate in use, can also use, there is wide application of the crowd.
Description of the drawings
Fig. 1 is the outline structural diagram of the external rotor electric machine of the present invention；
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；
The schematic diagram that Fig. 4 is the transcapsidation of the present invention and rotor endcap combines；
Fig. 5 is the structure diagram of the stator support in the present invention；
Fig. 6 is the structure diagram of the stator end cap in the present invention；
Fig. 7 is that the structure 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 structure diagram of electric roller skating for the external rotor electric machine in the present invention；
A kind of schematic diagram of embodiment when Figure 10 uses for electric roller skating；
Figure 11 is combined into one cross-sectional view for elastic fit circle and mounting portion
Mark 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 is fetter the component of foot, and 102 be parking component, and 110 be wheel, and 120 be trim ring.
Specific embodiment
As shown in Figures 1 to 6, external rotor electric machine A of the invention, including in a ring transcapsidation 10, rotor endcap 20, magnet steel
The 30th, iron core 40, stator support 50, stator end cap 60, elastic fit circle 62, the trim ring 120 of winding are installed, separately below to each
Part and the correlation between them are described in detail：
As shown in Figures 2 to 4, after rotor endcap 20 is arranged at 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
For end cap 20 with transcapsidation 10 preferentially using integrally formed mode, pillar 21 also preferentially uses integrally formed side with rotor endcap 20
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
The wall surface of the hole in hole, the preferably blind hole is 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 stent 50.
As shown in figure 3, magnet steel 30 is located in accommodating chamber 11, magnet steel 30 is fitted 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, so as to
Rotate transcapsidation 10, 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 stent 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 is fitted in the mounting hole 51, in this way, 21 relative stator stent 50 of pillar can revolve on 21
Turn.The iron core 40 is adapted 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 arranged at 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 using 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, so as 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 are extended through in cavity 53, after setting cavity 53, on stator support 50
The effective height of mounting hole 51 reduce, therefore be provided around in cavity 53 sleeve 54 around the mounting hole aperture,
In this way, the column for being cased with bearing 22 is extend into sleeve 54, ensured by casing 54 between pillar 21 and stator support 50
Assembling.
As shown in figure 3, in one or more specific embodiments, battery 70 and the electricity with control circuit are further included
Road plate 80, battery 70 are arranged in the cavity 53, and circuit board 80 is electrically connected with battery 70, the output terminal 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 by such mode so that without
External rotor electric machine A is without external power supply, that is, operable.Conventional circuit, example may be employed 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, optimal 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 on the hand-held device is set, 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, so as 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 leave 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 is extended radially into beyond 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 end cap 60
Between to realize sealing, if being the purpose for being unable to reach sealing directly using conventional O-ring seals, therefore, the present invention
A kind of elastic fit circle 62 is provided to coordinate to achieve the purpose that sealing with trim ring 120.As in figs. 3 and 11, the elasticity
One end of fitting 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
It is fixedly connected with stator end cap 60, an angle for being less than 90 degree is formed between elastic fit circle 62 and mounting portion 62a, preferably
Ground, elastic fit circle 62 is identical with the length of mounting portion, and the angle between elastic fit circle 62 and mounting portion 62a is 30 to 60
Degree, preferred mode is that the angle between elastic fit circle 62 and mounting portion is 50 degree.And in elastic fit circle 62 and installation
After the angle less than 90 degree is formed between portion, in addition elastic fit circle 62 is identical with the length of mounting portion, therefore, elastic fit circle
62 form the sealing ring that a section is V-shaped with mounting portion 62a.Elastic fit circle 62 and mounting portion 62a preferentially uses rubber
Glue material and be made of integrally formed mode, due between stator end cap and 60 and transcapsidation 10 there are gap, when trim ring 120
When being rotated with transcapsidation 10, after being pressed in by elastic fit circle 62 on trim ring 120, first limitation is not generated to the rotation of transcapsidation,
Play the role of sealing again simultaneously, prevent dust and water from being adversely affected to iron core 40.Since elastic fit 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
It is 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 during 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 transferred to
Sub- end cap 60, therefore, stator end cap would not also be rotated with transcapsidation 10, be zero so as to the rotating speed of stator end cap 60, i.e., opposite
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, when being worked due to the external rotor electric machine A of the present invention,
Stator end cap is in static state, therefore, can be installed driven object and stator end cap 60, so as to this hair
Bright external rotor electric machine A has overturned the frame mode of traditional external rotor electric machine A or wheel hub motor, while the outer rotor of the present invention
The application of motor A has obtained new breakthrough.
As shown in Figure 7 to 10, electric roller skating B of the invention, including external rotor electric machine A, the wheel in the above embodiment
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 between them
Relation 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, so as to which tire 90 be installed securely
In transcapsidation 10.
As shown in figure 9, one end of foot pedal 100 is connected with the stator end cap 60 of external rotor electric machine A, foot pedal 100 is with determining
The connection mode of sub- end cap 60 can be the mode that is fixedly connected or movable connection method, in the present embodiment, foot pedal
100 use the connection mode of activity 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 again with hinge.
Since foot pedal 100 and stator end cap 60 use the connection mode of activity, under the connection mode of activity, 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 the connection side of activity
Under formula, electric roller skating B can turn down foot pedal 100 under non-working condition to stator end cap 60, so as to which foot pedal 100 be received
Hold together, to reduce occupied space, entire electric roller skating B facilitated to be stored, the electric roller skating B of the present invention can be placed in bag,
Therefore have the advantages that easy to carry, and arrived in office or family, electric roller skating B can be placed in drawer, with depositing
Put the advantages of facilitating.
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 footwear or footwear, when user feet station on foot pedal 100 after, pass through constraint
The component 101 of foot gets up foot C constraints, in this way, electric roller skating B is fixed as one with foot, when electric roller skating B when driving, increase
Security, and on having bumpy road, electric roller skating B of the invention can directly wear Electric Motor Wheel just as footwear
Sliding B walks as usually walking, and is held away without taking off electric roller skating B with hand, and of the prior art electronic flat
Weigh vehicle, for there is bumpy road, is that user is needed to get off from electrodynamic balance, electrodynamic balance vehicle is had in arms away, because
This, electric roller skating B of the invention can be adapted for more roads in use.
As shown in Figure 9 and Figure 10, parking component 102 is additionally provided 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 normally traveling process
In, parking component 102 is not contacted with ground, when needing parking, is contacted by parking component 102 with ground, 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
It rotates wheel 110 and external rotor electric machine A 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 present invention combines to form electric roller skating A with foot pedal 100 and wheel 110, simply to the present invention
External rotor electric machine A the explanation preferably applied of one of which, it is but actual in use, the outer rotor A of the present invention is not limited to
Application in skidding can also install flabellum additional on the outer circumference surface of wheel shell, form fan, for answering for the external rotor electric machine
With widely, no longer illustrating 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 arranged at 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 are fitted 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；It further includes：
Stator support in accommodating chamber, stator support is arranged on the pillar and pillar relative stator stent is rotatable,
The iron core is adapted on stator support and iron core is between the magnet steel and stator support；
The stator end cap of stator support end is arranged at, 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 rotation, 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 is equipped with multiple mounting bases, and 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
Sleeve that is interior, being provided around in cavity around the mounting hole aperture；
It further includes battery and the circuit board with control circuit, battery is arranged in the cavity, circuit board is electrically connected with battery
It connects, the output terminal 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；
Elastic fit circle, one end of the elastic fit circle are 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 including 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, is made 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 |
|---|---|---|---|
| CN201711275050.0A CN108110982A (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 |
|---|---|---|---|
| CN201711275050.0A CN108110982A (en) | 2017-12-06 | 2017-12-06 | External rotor electric machine and electric roller skating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108110982A true CN108110982A (en) | 2018-06-01 |
Family
ID=62208100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711275050.0A Pending CN108110982A (en) | 2017-12-06 | 2017-12-06 | External rotor electric machine and electric roller skating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108110982A (en) |
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| CN207706018U (en) * | 2017-12-06 | 2018-08-07 | 江苏巨数智能科技有限公司 | External rotor electric machine and electric roller skating |
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