CN201994739U - Hub motor and electric vehicle - Google Patents
Hub motor and electric vehicle Download PDFInfo
- Publication number
- CN201994739U CN201994739U CN2011200540139U CN201120054013U CN201994739U CN 201994739 U CN201994739 U CN 201994739U CN 2011200540139 U CN2011200540139 U CN 2011200540139U CN 201120054013 U CN201120054013 U CN 201120054013U CN 201994739 U CN201994739 U CN 201994739U
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- Prior art keywords
- stator
- rotor case
- hub motor
- wheel hub
- rotor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
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- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The utility model relates to a hub motor, which comprises a rotor and a stator, wherein the rotor comprises a rotor case, a bearing and permanent magnets, the stator comprises a fixed shaft and a stator winding arranged at the fixed shaft in a penetrating way, the rotor case is fixed on the fixed shaft through the bearing, the rotor case is in a spherical shape, a stator extending-in hole and a stator output hole are arranged on the rotor case, the fixed shaft sequentially passes through the stator extending-in hole and the stator output hole, a plurality of installing holes are arranged on the rotor case, and the permanent magnets are fixed in the installing holes in a mode of using the stator as the center to be radiated in the direction towards the rotor case. More permanent magnets can be accommodated in the spherical rotor case, and the stator can generate greater induced electromotive force or generate greater electromagnetic torque. Therefore, the hub motor has the advantages that the energy conversion efficiency is high, the cost is low, and the occupied space position is small. The utility model also discloses an electric vehicle.
Description
Technical field
The utility model relates to technical field of motors, relates in particular to the electric motor car of a kind of wheel hub motor and this wheel hub motor of use.
Background technology
Motor is to realize the conversion of electric energy or a kind of calutron of transmission according to the law of electromagnetic induction, and it mainly acts on is to produce driving torque, as the power source of electrical equipment or various machineries.Conventional motor is divided into the two large divisions: stator and rotor.Stator is the stationary part of motor, is mainly used to produce magnetic field.Rotor is the rotating part of motor, and the main effect of rotor is induced electromotive force or produces electromagnetic torque, makes mechanical energy become the hinge that electric energy (generator) or electric energy become mechanical energy (motor).Produce induced electromotive force and electromagnetic torque during machine operation, to realize the conversion of energy.
The rotor case of existing wheel hub motor is hollow column structure or rectangular structure, and permanent magnet is fixed on its rotor case inwall, and the fixed axis of stator is fixed on the commutation joint of wheel, rotor by bearing fixing on fixed axis.In order to make wheel hub motor can produce bigger electric energy or mechanical energy, common way be in column or square rotor outer casing space as much as possible the installation permanent magnet or the size that increases rotor case to obtain bigger permanent magnet installing space.Yet the space size of column or square rotor shell is limited, and therefore the quantity of the rotor winding of installing also is limited, so can only obtain relatively large energy (electric energy or mechanical energy).If increase the size of rotor case, then can increase the cost of wheel hub motor, and increase the position that wheel hub motor takies.
Therefore, the wheel hub motor of prior art can not satisfy the high occasion use of ask for something energy conversion efficiency.
The utility model content
The purpose of this utility model is to avoid weak point of the prior art and provides a kind of at certain space self-energy conversion efficiency height, wheel hub motor that cost is low.
The purpose of this utility model realizes by following technical measures:
The utility model discloses a kind of wheel hub motor, comprise rotor, stator; Described rotor comprises rotor case, bearing and permanent magnet, described stator comprises fixed axis and is arranged in the stator winding of described fixed axis, described rotor case by described bearing fixing on described fixed axis, described rotor case is spherical, described rotor case is provided with stator and stretches into hole and stator delivery outlet, and described fixed axis passes described stator successively and stretches into hole and described stator delivery outlet; Described rotor case is provided with several installing holes, and described permanent magnet is the center, is fixed in installing hole to the mode of the directional divergence of described rotor case with described stator.
Preferably, the said stator winding is shaped as cylindrical shape.
Preferably, the said stator winding is shaped as sphere.
Preferably, above-mentioned installing hole is evenly distributed on the described rotor case.
Preferably, above-mentioned permanent magnet is shaped as the Rotary-table shape.
The invention also discloses a kind of electric motor car, comprise aforesaid wheel hub motor, the fixed axis of stator is fixed on the commutation joint (not identifying among the figure) of wheel.
The beneficial effects of the utility model: because the rotor case of wheel hub motor of the present utility model is spherical, under the situation of identical rotor case area, the internal capacity of spherical spinner shell is bigger than cylindrical and square capacity.So the volume summation of the permanent magnet that can hold in the spherical spinner shell is bigger than the volume summation of the permanent magnet that holds in cylindrical or the square rotor shell.Because wheel hub motor of the present utility model can hold the permanent magnet of more volume in certain spatial dimension, thereby can make stator produce bigger induced electromotive force or the bigger electromagnetic torque of generation, make more mechanical energy become electric energy (send out wheel hub motor) or make more electric energy become mechanical energy (motor), therefore wheel hub motor of the present utility model has the high advantage of energy conversion efficiency.In addition, wheel hub motor of the present utility model is when obtaining identical big or small electric energy or mechanical energy, littler and the occupation space position is less than the area of the wheel hub motor rotor case of prior art, thereby the utility model wheel hub motor also has the advantage that cost is low and the position that takes up room is little.
In like manner, use the electric motor car of wheel hub motor of the present utility model, also have energy conversion efficiency height, cost is low and the position that takes up room is little advantage as drive unit.
Description of drawings
The utility model is described in further detail to utilize accompanying drawing, but the embodiment in the accompanying drawing does not constitute any restriction of the present utility model.
Fig. 1 is the structural representation of first kind of execution mode of the utility model wheel hub motor;
Fig. 2 is the structural representation of second kind of execution mode of the utility model wheel hub motor;
Fig. 3 is the structural representation of the third execution mode of the utility model wheel hub motor.
Embodiment
With the following Examples the utility model is further elaborated:
A kind of wheel hub motor as shown in Figure 1 to Figure 3, comprises rotor 10, stator 20; Described rotor 10 comprises rotor case 11, bearing 30 and permanent magnet 12, described stator 20 comprises fixed axis 21 and is arranged in the stator winding 22 of described fixed axis 21, described rotor case 11 is fixed on the described fixed axis 21 by described bearing 30, described rotor case 11 is spherical, described rotor case 11 is provided with stator and stretches into hole 13 and stator delivery outlet 14, and described fixed axis 21 passes described stator successively and stretches into hole 13 and described stator delivery outlet 14; Described rotor case 11 is provided with several installing holes 17, and described permanent magnet 12 is the center, is fixed in installing hole 17 to the mode of the directional divergence of described rotor case 11 with described stator 20.The density and the quantity of the installing hole 17 on the rotor case 11 can be set according to actual needs.Preferably, installing hole 17 can be evenly distributed on the described rotor case 11.
Since the rotor case 11 of wheel hub motor of the present utility model be shaped as sphere, under the situation of identical rotor case area, 11 internal capacity of spherical spinner shell is bigger than cylindrical and square capacity.So the volume summation of the permanent magnet 12 that can hold in the spherical spinner shell 11 is bigger than the volume summation of the permanent magnet 12 that holds in cylindrical or the square rotor shell 11.Because wheel hub motor of the present utility model can hold the permanent magnet 12 of more volume in certain spatial dimension, thereby can make stator 20 produce bigger induced electromotive force or the bigger electromagnetic torque of generation, make more mechanical energy become electric energy (send out wheel hub motor) or make more electric energy become mechanical energy (motor), therefore wheel hub motor of the present utility model has the high advantage of energy conversion efficiency.In addition, wheel hub motor of the present utility model is when obtaining identical big or small electric energy or mechanical energy, littler and the occupation space position is less than the area of the wheel hub motor rotor case 11 of prior art, thereby the utility model wheel hub motor also has the advantage that cost is low and the position that takes up room is little.
As a kind of execution mode of wheel hub motor of the present utility model, as depicted in figs. 1 and 2, the shape of described stator winding 22 can be set to the cylinder bodily form.Because permanent magnet 12 is to be the center, to be provided with to the mode of the directional divergence of described rotor case 11 with stator 20, therefore be less than permanent magnet 12 volumes near permanent magnet 12 volumes in rotor case 11 equator this moment near rotor case 11 the two poles of the earth.Because stator winding 22 is to serve as that the axle circumference rotates with fixed axis 21, therefore, in the identical spatial dimension, the stator winding 22 of cylindrical shape is bigger than the volume of the stator winding 22 of rectangular shape.So the stator winding 22 of employing cylindrical shape, its energy conversion efficiency are higher than rectangular shape.
As the another kind of execution mode of wheel hub motor of the present utility model, as shown in Figure 3, the shape of described stator winding 22 can be set to sphere.Because rotor case 11 is spherical, when stator winding 22 is set to sphere, all permanent magnets 12 can be set to identical size.In a certain size spherical spinner shell 11, spherical stator winding 22 can be bigger than stator winding 22 volumes of cylindrical shape, so adopt the energy conversion efficiency of spherical stator winding 22 to be higher than cylindrical shape.
The shape of permanent magnet 12 can be set to cylindrical, as shown in Figure 1.Preferably, as shown in Figures 2 and 3, the shape of permanent magnet 12 can be set to the Rotary-table shape, like this can better utilization spherical spinner shell space in 11, increase the volume of permanent magnet 12, and then improve energy conversion efficiency.
The invention also discloses a kind of electric motor car (identifying among the figure), comprise aforesaid wheel hub motor, the fixed axis 21 of stator 20 is fixed on the commutation joint (identifying among the figure) of wheel.In like manner, use the electric motor car of wheel hub motor of the present utility model, also have energy conversion efficiency height, cost is low and the position that takes up room is little advantage as drive unit.Adopt the electric motor car of wheel hub motor of the present utility model, can be when improving energy conversion efficiency, reduce the area of the rotor case of wheel hub motor, thereby can reduce the cost of wheel hub motor, thereby reduce the cost of electric motor car, alleviate the weight of electric motor car, can also reduce taking up room of wheel hub motor, therefore can make electric motor car lighter, further improve the capacity usage ratio of electric motor car.
Should be noted that at last; above embodiment is only in order to the explanation the technical solution of the utility model; but not to the restriction of the utility model protection range; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the essence and the scope of technical solutions of the utility model.
Claims (6)
1. a wheel hub motor is characterized in that: comprise rotor, stator;
Described rotor comprises rotor case, bearing and permanent magnet, and described stator comprises fixed axis and be arranged in the stator winding of described fixed axis, described rotor case by described bearing fixing on described fixed axis,
Described rotor case is spherical, and described rotor case is provided with stator and stretches into hole and stator delivery outlet, and described fixed axis passes described stator successively and stretches into hole and described stator delivery outlet;
Described rotor case is provided with several installing holes, and described permanent magnet is the center, is fixed in described installing hole to the mode of the directional divergence of described rotor case with described stator.
2. wheel hub motor according to claim 1 is characterized in that: described stator winding be shaped as cylindrical shape.
3. wheel hub motor according to claim 1 is characterized in that: described stator winding be shaped as sphere.
4. wheel hub motor according to claim 1 is characterized in that: described installing hole is evenly distributed on the described rotor case.
5. wheel hub motor according to claim 1 is characterized in that: described permanent magnet be shaped as the Rotary-table shape.
6. electric motor car comprises as each described wheel hub motor in the claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200540139U CN201994739U (en) | 2011-03-03 | 2011-03-03 | Hub motor and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200540139U CN201994739U (en) | 2011-03-03 | 2011-03-03 | Hub motor and electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201994739U true CN201994739U (en) | 2011-09-28 |
Family
ID=44671214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200540139U Expired - Fee Related CN201994739U (en) | 2011-03-03 | 2011-03-03 | Hub motor and electric vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201994739U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570755A (en) * | 2012-03-12 | 2012-07-11 | 广州市赛导电气技术有限公司 | Spherical motor |
| WO2021104104A1 (en) | 2019-11-28 | 2021-06-03 | 华为技术有限公司 | Energy-efficient display processing method, and apparatus |
-
2011
- 2011-03-03 CN CN2011200540139U patent/CN201994739U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102570755A (en) * | 2012-03-12 | 2012-07-11 | 广州市赛导电气技术有限公司 | Spherical motor |
| CN102570755B (en) * | 2012-03-12 | 2014-06-04 | 广州市赛导电气技术有限公司 | Spherical motor |
| WO2021104104A1 (en) | 2019-11-28 | 2021-06-03 | 华为技术有限公司 | Energy-efficient display processing method, and apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20190303 |