Wheel hub electric motor of electric vehicle and Electricmotor car wheel
Technical field
The invention belongs to motor field more particularly to a kind of wheel hub electric motor of electric vehicle and use the wheel hub electric motor of electric vehicle
Electricmotor car wheel.
Background technique
Hub motor is the mechanical part that power device is integrated directly into the wheel hub of car, therefore can make electric vehicle
It is greatly simplified.Since the wheel size by different vehicle is limited, the size of corresponding hub motor is generally and wheel
Size is corresponding.It is necessary to have biggish thrusts when hub motor is for driving vehicle.Hub motor thrust size and its rotor
Magnetic field and its have direct relation with the magnetic field of stator, the in general magnetic field of rotor and the magnetic field of stator is bigger, hub motor
Motive force also can be bigger.The prior art increases the magnetic field of the coil winding of stator generally by input current is increased, so
And increase input current, it will lead to hub motor calorific value increase, and increase the power consumption of hub motor, thus the prior art
In can generally control the size of input current, prevent hub motor from burning out.Also the hub motor for having led to the prior art pushes
Power is smaller.
Summary of the invention
The purpose of the present invention is to provide a kind of wheel hub electric motor of electric vehicle, it is intended to solve prior art hub motor motive force
Lesser problem.
The invention is realized in this way a kind of wheel hub electric motor of electric vehicle, including wheel shaft, the wheel being articulated on the wheel shaft
Hub, the stator of the rotor for being installed on the wheel hub and being rotated with the hub rotation and the rotor engagement and support institute
The support plate of stator is stated, the support plate is fixedly installed on the wheel shaft;The rotor includes the magnetic field of generation along described
At least two circle permanent magnets of wheel shaft being arranged radially, the two circle permanent magnets are coaxial and spaced radial is arranged, the stator packet
Include several Energizing units described in cooperation insertion two adjacent rings between permanent magnet, support respectively the support frame of each Energizing unit with
And the conductor wire being electrical connected with each Energizing unit, the support frame be fixed on the support plate in face of the wheel hub
Inside.
Further, every circle permanent magnet include magnetic induction line along the circle permanent magnet radial direction and annular array be arranged it is more
A permanent magnet, the two neighboring permanent magnet polarity is towards on the contrary;It respectively encloses corresponding on the same straight line of radial direction of the permanent magnet
The polarity of permanent magnet is towards identical.
Further, the rotor further includes the iron hoop for supporting each circle permanent magnet respectively, each iron hoop with it is described
The medial surface of wheel hub is fixedly linked, and each iron hoop is around the wheel shaft.
Further, the centre of the wheel hub is equipped with first bearing, and the first bearing is set in the wheel shaft
On.
Further, each Energizing unit is iron-less core coil.
Further, each Energizing unit includes at least four layer line circles, and every layer of coil is multiturn, and every layer adjacent two
Coil described in circle reclines side by side and mutually, and the winding direction of each layer coil is identical.
Further, at least four layers of coil of each Energizing unit are closely wound in the same direction by solid conductor
It forms.
It further, further include the end cap for being placed on the support plate opposite exterior lateral sides, the centre of the end cap is articulated in
On the wheel shaft, the periphery of the end cap is fixedly linked with the wheel hub.
Further, axial direction of the wheel shaft close to one end of the support plate opposite exterior lateral sides offers blind hole, the wheel
The side of axis offers the aperture being connected with the blind hole, and the aperture is between the end cap and the support plate.
The present invention by being arranged at least two circle permanent magnets in the hub, so as to provide the magnetic field of higher intensity;Simultaneously
Energizing unit is inserted between two adjacent rings permanent magnet, and is fixed using support frame and supports Energizing unit;Then excitation list
The magnetic field that member generates can generate active force with two adjacent rings permanent magnet simultaneously, to provide stronger motive force for rotor.With
The hub motor of the prior art is compared, and wheel hub electric motor of electric vehicle of the invention can provide stronger when same volume is with input current
Motive force.
Another object of the present invention is to provide a kind of Electricmotor car wheels, including wheel rim and the wheel being installed on the wheel rim
Tire, further includes wheel hub electric motor of electric vehicle as described above, and the wheel rim is fixed on the wheel hub electric motor of electric vehicle.
Electricmotor car wheel of the invention has used above-mentioned wheel hub electric motor of electric vehicle, so as to provide stronger push away for vehicle
The heat of power, generation is smaller, and power consumption is smaller, more efficient.
Detailed description of the invention
Fig. 1 is a kind of schematic cross-sectional view for wheel hub electric motor of electric vehicle that the embodiment of the present invention one provides;
Fig. 2 is the schematic cross-sectional view of wheel hub and rotor in the wheel hub electric motor of electric vehicle of Fig. 1;
Fig. 3 is the wheel hub of Fig. 2 and the overlooking structure diagram of rotor;
Fig. 4 is the combined schematic cross-sectional view of wheel shaft in the wheel hub electric motor of electric vehicle of Fig. 1, support plate and stator;
Fig. 5 is the schematic cross-sectional view along Fig. 4 middle line A-A;
Fig. 6 is the schematic perspective view of Energizing unit in Fig. 4.
Fig. 7 is a kind of schematic cross-sectional view of wheel hub electric motor of electric vehicle provided by Embodiment 2 of the present invention;
Fig. 8 is the right side structural representation of wheel hub and rotor in Fig. 7.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment one:
Please refer to Fig. 1 and Fig. 2, a kind of wheel hub electric motor of electric vehicle provided in an embodiment of the present invention, including wheel shaft 1, wheel hub 2,
Rotor 3, stator 5 and support plate 6;Wherein, the centre of wheel hub 2 is articulated on wheel shaft 1, so that wheel hub 2 can be 1 turn around wheel shaft
It is dynamic;Rotor 3 is installed on the hub 2, is specifically mounted on the relative inner face of wheel hub 2;Stator 5 and rotor 3 cooperate, with driving
Rotor 3 rotates;Support plate 6 is fixedly mounted on wheel shaft 1, and for supporting stator 5, stator 5 is mounted in support plate 6, specifically
Stator 5 is fixed on support plate 6 on the side of the side of wheel hub 2, that is, is mounted on the relative inner face of support plate 6.This reality
Applying rotor 3 in example includes two circle permanent magnets 31, and the two circles permanent magnet 31 is coaxial and is spaced setting, which includes
Outer ring permanent magnet 311 and inner ring permanent magnet 312;The direction in the magnetic field generated in every circle permanent magnet 31 is along the circle permanent magnet 31
Radial direction, i.e. the radial direction along wheel shaft 1.Referring to Figure 4 together, stator 5 includes several Energizing units 51, supports each excitation list respectively
The support frame 52 of member 51 and the conductor wire 53 being electrical connected with each Energizing unit 51;Support frame 52 is fixed in support plate 6, tool
Body support frame 52 be fixed on support plate 6 on the side of the side of wheel hub 2, that is, be mounted on the relative inner face of support plate 6
On;Energizing unit 51 is mounted in support frame 52, to be fixedly linked with support plate 6.Above-mentioned interval is inserted into the cooperation of support frame 52
Between two circle permanent magnets 31 being arranged, and be inserted into Energizing unit 51 between the two circles permanent magnet 31, then it is logical in Energizing unit 51
When electric, both ends generate magnetic field, and generate interaction force with two circle permanent magnets 31 simultaneously, and two circle permanent magnets 31 is pushed to rotate,
I.e. drive rotor 3 rotates.
In the present embodiment, by the way that two circle permanent magnets 31 are arranged in wheel hub 2, so that stator 5 be allow to provide higher intensity
Magnetic field;Energizing unit 51 is inserted between two circle permanent magnets 31 simultaneously, and is fixed using support frame 52 and supports excitation
Unit 51;And when the generation magnetic field of Energizing unit 51, one end is the pole N, and the other end is the pole S, then the magnetic field that Energizing unit 51 generates
Active force can be generated simultaneously with the two circles permanent magnet 31, to provide stronger motive force for rotor 3.With the wheel of the prior art
Hub motor is compared, and the wheel hub electric motor of electric vehicle of the present embodiment can provide stronger motive force in same volume and input current,
And in situation similar in motive force, the heat that the wheel hub electric motor of electric vehicle of the present embodiment generates is smaller, and energy consumption is lower, and efficiency is more
It is high.
Fig. 2 and Fig. 3 are please referred to, every circle permanent magnet 31 includes multiple permanent magnets of annular array setting, and two neighboring
Permanent magnet polarity is towards on the contrary;The permanent magnet 31a and permanent magnet that outer ring permanent magnet 311 is reversed by polarity in the present embodiment
31b is arranged alternately composition, and the permanent magnet 31c that inner ring permanent magnet 312 is reversed by polarity and permanent magnet 31d are arranged alternately group
At.The polarity of corresponding two permanent magnets is towards identical, i.e., two circle permanent magnets on the radial same straight line of two circle permanent magnets 31
In 31, the pole N (arctic of magnet) of some permanent magnet 31a is located at the relatively interior of the outer ring permanent magnet 311 in outer ring permanent magnet 311
Side, then the pole N of corresponding permanent magnet 31c also is located at the relative inner of the inner ring permanent magnet 312 in inner ring permanent magnet 312, this is interior
The circle corresponding permanent magnet 31c of permanent magnet 312 permanent magnet 31a corresponding with the outer ring permanent magnet 311 is located at the inner ring permanent magnet 312
Or the outer ring permanent magnet 311 radial direction and be to be located along the same line;Then permanent magnet corresponding with the outer ring permanent magnet 311
The pole S of permanent magnet 31b on 31a adjacent outer ring permanent magnet 311 is located at the relative inner of the outer ring permanent magnet 311, and corresponding
The adjacent inner ring permanent magnet 312 of permanent magnet 31c corresponding with the inner ring permanent magnet 312 on permanent magnet 31d the pole S (magnet
The South Pole) be located at the inner ring permanent magnet 312 relative inner.It is right to be enclosed on the same radial straight line of permanent magnets 31 two
The magnetic field for two permanent magnets answered is overlapped at gap therebetween, such as the magnetic field in the magnetic field of permanent magnet 31a and permanent magnet 31c in figure
It is superimposed therebetween, to improve the intensity in magnetic field.
Further, stator 5 further includes the iron hoop 32 for being respectively used to support each circle permanent magnet 31, the side of each iron hoop 32 with
The relative inner face of wheel hub 2 is fixedly linked.Iron hoop 32 is set to facilitate the permanent magnet that each circle is fixedly mounted, while wheel can be mitigated
The weight of hub 2.In addition, when outer ring permanent magnet 311 is mounted on the relative inner of outer ring iron hoop 32, and inner ring permanent magnet 31 is mounted on
The opposite exterior lateral sides of inner ring iron hoop 32, then respectively circle permanent magnet 31 in two neighboring permanent magnet (such as permanent magnet 31a and permanent magnet 31b) with
The iron hoop 32 can form U-shaped magnet, to improve the intensity in the magnetic field that the permanent magnet of each circle permanent magnet 31 generates.The present embodiment
In, iron hoop 32 and wheel hub 2 are integrally formed, and to facilitate manufacture to process, while improving the intensity of wheel hub 2 Yu iron hoop 32.
Fig. 1 and Fig. 2 are please referred to, further, in order to rotate wheel hub 2 more neatly on wheel shaft 1, in wheel hub 2
Center portion position is equipped with first bearing 21, and first bearing 21 is set on wheel shaft 1, and first bearing 21 is arranged, to reduce wheel hub 2 and wheel
Frictional force between axis 1 facilitates 2 flexible rotating of wheel hub.
Fig. 5 and Fig. 6 are please referred to, each Energizing unit 51 is iron-less core coil 511.Using iron-less core coil 511, in same volume
It can wind more multiturn coil 511 under product, to improve the intensity of excitation field.
Further, each Energizing unit 51 include at least four layer line circles 511, every layer line circle 511 be multiturn, every layer adjacent two
Circle coil 511 reclines side by side and mutually, and the winding direction of each layer line circle 511 is identical.At least four layer line circles 511, each layer line are set
The magnetic field that circle 511 generates preferably is superimposed at the center of the Energizing unit 51, to further enhance the generation of Energizing unit 51
Magnetic field strength.Every layer of adjacent two circles coil 511 reclines can wind the coil 511 of more multiturn side by side and mutually, to improve coil
511 generate magnetic field strength, and the winding direction of each layer line circle 511 is identical, can more easily wind, and manufactures convenient for industry,
To reduce cost.
Further, at least four layer line circles 511 of each Energizing unit 51 are closely wound in the same direction by solid conductor 512
It forms.Forming at least four layer line circles 511 of Energizing unit 51 is closely wound in the same direction by solid conductor 512.
Direction of rotation is identical when winding refers in particular to wind conducting wire 512 in the same direction herein, such as winds along clockwise direction or along inverse
Clockwise winding.At least four layer line circles 511 are entwined by solid conductor 512, the interior of coil 511 can be reduced as far as possible
Resistance, to reduce the calorific value of the Energizing unit 51.Preferably, enameled wire can be used in conducting wire 512, in this way, same diameter is led
Line 512, resistance is lower.Copper conducting wire 512 can be used in conducting wire 512, and aluminum conducting wire 512 etc. also can be used.
Each layer line circle 511 can fill bonded adhesives 54 in gap in winding therebetween, preferably to fix each layer line circle
511, and fix the shape of the Energizing unit 51.In addition, after Energizing unit 51 is mounted in support frame 52, it can also be into frame
Bonded adhesives 54 is filled, steadily Energizing unit 51 to be fixed in support frame 52, and when bonded adhesives 54 is filled in adjacent branch
When between support frame 52, each support frame 52 of annular array and the bonding of each Energizing unit 51 can be circularized, so as to Energizing unit
51 fixation is stronger.It is preferable to use hot-setting adhesives for bonded adhesives 54.
Further, Fig. 1, Fig. 4 and Fig. 5 are please referred to, support plate 4 is stepped, i.e., the centre of the support plate 4 to its
Relative inner protrusion setting, in this way when support plate 4 is fixed on wheel shaft 1, can be fixed on wheel for the centre of support plate 4
The intermediate position of axis 1, more stably to support support plate 4.Support plate 4 can be used pin key 41 and be fixed on wheel shaft 1.
Further, which further includes end cap 6, the centre of end cap 6 be articulated on wheel shaft 1 and
End cap 6 is placed on the opposite exterior lateral sides of support plate 6, and periphery and the wheel hub 2 of end cap 6 are fixedly linked, i.e., wheel hub 2 is placed on respectively with end cap 6
The opposite sides of support plate 6.Setting end cap 6 can play the role of protecting support plate 6 and stator 5.
End cap 6 can be used screw 62 and be fixedly linked with wheel hub 2, specifically, end cap 6 and the iron hoop 32 of outer ring can be consolidated
It is fixed to be connected.In some other embodiment, screw 62 also can be used and be connected directly end cap 6 and the periphery of wheel hub 2.
Further, it being rotated on wheel shaft 1 for convenience of end cap 6, the centre of end cap 6 is equipped with second bearing 61, the
Two bearings 61 are set on wheel shaft 1, and second bearing 61 is arranged, and to reduce the frictional force between end cap 6 and wheel shaft 1, facilitate end cap 6 clever
Rotation living.
Further, axial direction of the wheel shaft 1 close to one end of 6 opposite exterior lateral sides of support plate offers blind hole 11, the side of wheel shaft 1
The aperture 12 being connected with blind hole 11 is offered, aperture 12 is between end cap 6 and support plate 6.Blind hole 11 is opened up on wheel shaft 1
And aperture 12 is opened up in 1 side of wheel shaft, the conductor wire 53 being electrical connected with each Energizing unit 51 can be passed through into the aperture 12 again
It is drawn except the wheel hub electric motor of electric vehicle through the blind hole 11, to be powered to each conductor wire 53.It is also possible to prevent to lead simultaneously
Electric wire 53 influences end cap 6 and rotates.
Embodiment two:
Please refer to Fig. 7 and Fig. 8, the area of the wheel hub electric motor of electric vehicle of the wheel hub electric motor of electric vehicle and embodiment one of the present embodiment
Be not: 3 ' of rotor of the wheel hub electric motor of electric vehicle includes three circle 31 ' of permanent magnet, and three circle 31 ' of permanent magnet are coaxial and interval is set
It sets, is specially 311 ' of outer ring permanent magnet, 312 ' of 313 ' of centre circle permanent magnet and inner ring permanent magnet in the present embodiment;And 5 ' of stator is corresponding
The circle of 51 ' of Energizing unit and two including two circle annular arrays supports 52 ' of support frame of each 51 ' of Energizing unit, two circle excitations respectively
51 ' of unit is inserted into respectively between two gaps of three circle permanent magnets, 31 ' formation, in this way, three circle 31 ' of permanent magnet can be encouraged with two circles
The opposite end of 51 ' of magnetic cell generates electromagnetic force, to further increase the motive force to 3 ' of rotor.
Every circle 31 ' of permanent magnet includes multiple permanent magnets of annular array setting in three circle 31 ' of permanent magnet, and two neighboring
Permanent magnet polarity is towards on the contrary, the permanent magnet 31a ' and permanent magnet that permanent magnet 311 ' in outer ring is reversed by polarity in the present embodiment
31b ' is arranged alternately composition, and the permanent magnet 31c ' that 312 ' of inner ring permanent magnet is reversed by polarity and permanent magnet 31d ' is arranged alternately
Composition, the permanent magnet 31e ' that 313 ' of centre circle permanent magnet is reversed by polarity and permanent magnet 31f ', which is arranged alternately, to be formed.In each circle
Corresponding on the same straight line radially of 31 ' of permanent magnet there are three permanent magnets, such as permanent magnet 31a ', permanent magnet 31e ', permanent magnet
31c ';These three permanent magnets are respectively corresponding permanent magnet 31a ' on 311 ' of outer ring permanent magnet, correspondence on 313 ' of centre circle permanent magnet
312 ' of permanent magnet 31e ' and inner ring permanent magnet on corresponding permanent magnet 31c ', and the polarity of these three permanent magnets is towards identical,
That is the pole N of corresponding permanent magnet 31a ' is located at the relative inner of 311 ' of the outer ring permanent magnet on 311 ' of outer ring permanent magnet, and centre circle is forever
The pole N of corresponding permanent magnet 31e ' is located at the relative inner of 313 ' of the centre circle permanent magnet, 312 ' of inner ring permanent magnet on 313 ' of magnet
The pole N of upper corresponding permanent magnet 31c ' is located at the relative inner of 312 ' of the inner ring permanent magnet.With 311 ' Shang couple of the outer ring permanent magnet
The pole S of the permanent magnet 31a ' answered adjacent permanent magnet 31b ' is located at the relative inner of 311 ' of the outer ring permanent magnet, forever with the centre circle
The pole S of corresponding permanent magnet 31e ' adjacent permanent magnet 31f ' is located at the relatively interior of 313 ' of the centre circle permanent magnet on 313 ' of magnet
The pole S of side, the permanent magnet 31d ' adjacent with corresponding permanent magnet 31c ' on 312 ' of the inner ring permanent magnet is located at the inner ring permanent magnet
The relative inner of 312 '.Thus on the radial same straight line of 31 ' of two adjacent rings permanent magnet, the magnetic of corresponding two permanent magnets
Field is overlapped at gap therebetween, to improve the intensity in magnetic field.
In other embodiments, 3 ' of rotor also may include permanent magnet 31 ' of more multi-turn, and corresponding 5 ' of stator also can wrap
51 ' of Energizing unit of more multi-turn is included, so that each 31 ' of circle permanent magnet at least can more one circle 51 ' of Energizing unit generation electromagnetic force.
Further, to increase magnetic field strength between 31 ' of two adjacent rings permanent magnet, along the same straight line of each circle 3 ' 1 of permanent magnet radially
The polarity of corresponding each permanent magnet is towards identical.
Other knots of the wheel hub electric motor of electric vehicle of the other structures and embodiment one of the wheel hub electric motor of electric vehicle of the present embodiment
Structure is identical, no longer burdensome a bit.
The embodiment of the present invention also provides a kind of Electricmotor car wheel, which includes wheel rim, is installed on wheel rim
The hub motor of tire and support wheel rim, wheel rim are fixed in hub motor, which is the electricity provided such as embodiment one
Motor-car hub motor.The Electricmotor car wheel has used above-mentioned wheel hub electric motor of electric vehicle, so as to provide stronger push away for vehicle
The heat of power, generation is smaller, and power consumption is smaller, more efficient.
The embodiment of the invention also provides another Electricmotor car wheels, including wheel rim, the tire being installed on wheel rim and branch
The hub motor of wheel rim is supportted, wheel rim is fixed in hub motor, which is the electric vehicle hub provided such as embodiment two
Motor.The Electricmotor car wheel has used above-mentioned wheel hub electric motor of electric vehicle, so as to provide stronger motive force for vehicle, generates
Heat it is smaller, power consumption is smaller, more efficient.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.