CN2870283Y - Hub motor - Google Patents
Hub motor Download PDFInfo
- Publication number
- CN2870283Y CN2870283Y CNU2006200390681U CN200620039068U CN2870283Y CN 2870283 Y CN2870283 Y CN 2870283Y CN U2006200390681 U CNU2006200390681 U CN U2006200390681U CN 200620039068 U CN200620039068 U CN 200620039068U CN 2870283 Y CN2870283 Y CN 2870283Y
- Authority
- CN
- China
- Prior art keywords
- motor
- clutch
- gear
- model
- wheel hub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 2
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Classifications
-
- 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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- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The external rotor of the said motor of the wheel hub motor provided by the utility model is connected with the sun wheel by clutch; the sun wheel is connected with the gear ring, the gear ring is connected with the cover of the wheel hub. By adopting external rotor motor, the rotation of external rotor is connected with the reducing mechanism, the output power of unit weight (volume) is comparatively large and compared with other in-wheel motors with the same power, the volume is comparatively small, therefore, the model boasts high usage value. Especially if this model is used for electric vehicles, when the electrical power lacks or people need to drive the vehicle, the unidirectional clutch disposed between the motor rotor and the sun wheel could reduce resistance without driving the rotation of motor rotor. Because the motor rotor does not rotate, the torsional force assumed by the clutch is comparatively small which greatly reduces the clutch volume and the whole dead volume of the in-wheel motor; moreover, people would feel easy to ride. The same is true that the utility model is applicable for electric motorcycles and cars in automatic movement without motor operation.
Description
Technical field
The utility model relates to a kind of motor, and particularly a kind of motor directly drives the wheel hub motor that wheel hub rotates.
Background technology
The motor (wheel hub motor) that is rotated by the driven by motor wheel hub is widely used in electric motor car and other rotating mechanism.A kind of existing electric wheel hub is rotated by the direct driven wheel hub shell of motor outer rotor, and still, because rotating speed of motor is lower, the volume of motor is bigger usually, and moment of torsion is less.Another wheel hub motor adopts motor relatively at a high speed, through for example planetary reduction gear transmission mechanism driven wheel hub shell rotation of reducing gear.But owing to adopt conventional inner rotor motor, motor shaft links to each other with reducing gear, and the stator coil of this motor is in periphery, and rotor is an internal rotor, and the air gap diameter of a circle is less, and the power output of Unit Weight (volume) can not further strengthen; Perhaps adopt higher rotating speed, reach this purpose, can cause the reduction of the difficulty and the efficient of technology so again.
The utility model content
Technical problem to be solved in the utility model provides under a kind of same volume, and power output is bigger, and the high wheel hub motor of efficient.
To achieve these goals, the wheel hub motor that provides of the utility model comprises:
One motor shaft, this motor shaft maintains static moving;
One hub shell that links to each other with described motor shaft by bearing;
One has a winding electric machine stator with above-mentioned motor shaft is fixedly linked;
It is characterized in that it also comprises:
One motor outer rotor; And
Surely planetary reduction gear transmission mechanism, it comprises a sun gear, several planetary gears, gear ring and planet carrier, and described motor outer rotor and sun gear are fixedly linked, and described planetary gear drives described hub shell and rotates;
Described motor outer rotor links by clutch and described sun gear, and described planetary gear and described gear ring link, and described gear ring and described hub shell link.
Further, the rotation axis of described planetary gear is fixed on the planet carrier, and described planet carrier and motor shaft are fixedly linked.
Further again, described clutch is an one-way clutch.
The wheel hub motor that the utility model provides, owing to adopt external rotor electric machine, external rotor rotates and links to each other with reducing gear, the power output of Unit Weight (volume) is bigger, compare with the wheel hub motor of other same power, volume is less relatively, has very high use value.During especially for electric bicycle, when not having electric power or need be driven by manpower for power saving, the utility model adopts and establish an one-way clutch between electronics rotor and sun gear, rotates to reduce resistance thereby do not drive rotor.Because rotor do not rotate, and turning round of need bearing of clutch is less, significantly reduced clutch ground volume and whole wheel hub motor death volume, and manpower is ridden lighter.As a same reason, battery-operated motor cycle and electric automobile the utility model when the disengagement motor moves voluntarily also is suitable for.
Description of drawings
Fig. 1 is the structural representation of the wheel hub motor that provides of the utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.
Referring to Fig. 1, the wheel hub motor that the utility model provides comprises motor shaft 1, motor stator (containing coil) 2, motor outer rotor 3, sun gear 5, planetary gear 6, planet carrier 8, gear ring 9, one-way clutch 10 and hub shell 11.Motor shaft 1 is fixing, and motor stator 2 is fixing with motor shaft 1.Motor outer rotor 3 links by clutch 10 and sun gear 5, and described planetary gear 6 links with described gear ring 9, and described gear ring 9 links with described hub shell 11.
Motor outer rotor 3 links to each other with motor shaft 1 by bearing 31.When electric motor starting, motor outer rotor 3 rotates.Motor outer rotor 3 can drive sun gear 5 by clutch 10 and rotate.Sun gear 5, planetary gear 6 and planet carrier 8 are formed planetary reduction gear transmission mechanism surely.The rotation axis 61 of planetary gear 6 is fixed on the planet carrier 8, and planet carrier 8 is fixedly linked with motor shaft 1.Gear ring 9 is a ring-type, and it contains an internal gear 91, and it is by this internal gear 91 and planetary gear 6 engagements, and like this, planetary gear 6 can drive gear ring 9 and rotate.In the present embodiment, gear ring 9 be arranged on hub shell 11, inner surface, like this, both can make full use of material, can increase the external diameter of gear ring 9 again as far as possible, increase speed reducing ratio.
Hub shell 11 links to each other with motor shaft 1 by bearing 111.
Motor outer rotor 3 links by one-way clutch 10 and sun gear 5, like this, it can make gear ring 9 to drive hub shell 11 in a direction and rotate, when gear ring 9 rotates, gear ring 9 links to each other with hub shell 11, rotates gear ring 9 and can drive hub shell 11 rotations; Otherwise when hub shell 11 rotates (when manpower is ridden), hub shell 11 drives planetary gear 6 with gear ring 9 and sun gear 5 rotates, but skids owing to one-way clutch 10 between sun gear 5 and the motor outer rotor 3, and motor outer rotor 3 does not rotate.
The description of top embodiment should not be the restriction to protection range of the present utility model, to those skilled in the art, on the basis of the foregoing description, still can do multiple variation, and its protection range should be defined by the claims.
Claims (3)
1, a kind of wheel hub motor, it comprises:
One motor shaft, this motor shaft maintains static moving;
One hub shell that links to each other with described motor shaft by bearing;
One has a winding electric machine stator with above-mentioned motor shaft is fixedly linked;
It is characterized in that it also comprises:
One motor outer rotor; And
Surely planetary reduction gear transmission mechanism, it comprises a sun gear, several planetary gears, gear ring and planet carrier, and described motor outer rotor and sun gear are fixedly linked, and described planetary gear drives described hub shell and rotates;
Described motor outer rotor links by clutch and described sun gear, and described planetary gear and described gear ring link, and described gear ring and described hub shell link.
2, wheel hub motor as claimed in claim 1 is characterized in that, the rotation axis of described planetary gear is fixed on the planet carrier, and described planet carrier and motor shaft are fixedly linked.
3, wheel hub motor as claimed in claim 1 is characterized in that, described clutch is an one-way clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200390681U CN2870283Y (en) | 2006-01-19 | 2006-01-19 | Hub motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200390681U CN2870283Y (en) | 2006-01-19 | 2006-01-19 | Hub motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2870283Y true CN2870283Y (en) | 2007-02-14 |
Family
ID=37725226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200390681U Expired - Fee Related CN2870283Y (en) | 2006-01-19 | 2006-01-19 | Hub motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2870283Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103442918A (en) * | 2011-03-09 | 2013-12-11 | 沃尔沃拉斯特瓦格纳公司 | Wheel hub motor arrangement |
-
2006
- 2006-01-19 CN CNU2006200390681U patent/CN2870283Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103442918A (en) * | 2011-03-09 | 2013-12-11 | 沃尔沃拉斯特瓦格纳公司 | Wheel hub motor arrangement |
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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 |
Granted publication date: 20070214 Termination date: 20150119 |
|
| EXPY | Termination of patent right or utility model |