CN201272472Y - Air cooling electric driven hub - Google Patents
Air cooling electric driven hub Download PDFInfo
- Publication number
- CN201272472Y CN201272472Y CN 200820100120 CN200820100120U CN201272472Y CN 201272472 Y CN201272472 Y CN 201272472Y CN 200820100120 CN200820100120 CN 200820100120 CN 200820100120 U CN200820100120 U CN 200820100120U CN 201272472 Y CN201272472 Y CN 201272472Y
- Authority
- CN
- China
- Prior art keywords
- wheel hub
- electric
- electric motor
- motor
- end cap
- 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
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- Y02T10/641—
Abstract
The utility model discloses a wind-cooling electric wheel hub which comprises a driving shaft, a wheel hub frame, a box body, an external rotor electric motor and a wheel. The wheel hub is fixedly connected with the end cover of the box body; the driving shaft is matched with the box body in a rotation mode; the stator of the external motor electric rotor is integrated with an end cover; and the outer side of the end cover is provided with radiating ribs. The wind-cooling electric wheel hub optimizes the structure of the electric motor, adopts the radiating ribs for heat radiation to dissipate the heat generated by the operation of the electric motor and still can effectively dissipate heat when the electric motor works for a long time so as to guarantee the higher working efficiency of the electric motor and increase the working efficiency by 2 -5 percent, so that the energy resources are saved, the service life of the electric motor is prolonged, the structure is simple and compact without increase of volume of the electric wheel hub; and the utility model is suitable for electric vehicles.
Description
Technical field
The utility model relates to a kind of electric wheel hub, particularly a kind of air-cooled electric wheel hub.
Background technology
In the prior art, electronlmobil, battery-operated motor cycle, Electrical Bicycle all are by governor handle or acceleration pedal direct control current control speed basically, or adopt manual mechanical automatic transmission mode to realize speed change.The operation of navigating mate is depended in the operation of handle or acceleration pedal fully, usually can cause operation and garage's situation not to match, and causes the motor fluctuation of service, the stall phenomenon occurs.Particularly starting, when upward slope and heavy load, because resistance to motion increases, under the situation that does not have the self-adapting automatic gear shift device, forcing motor speed to descend works in the low efficiency district, cause battery to increase under the supply current operating mode, motor rotation blockage, heating, if the radiating condition of motor itself is bad, can cause that the motor feels hot, cause that motor internal each several part thermal expansion coefficient difference causes the variation of structural stress and the subtle change of internal air gap, can influence the normal operation of motor, cause degradation of energy, lower efficiency, motor can be burnt out when serious, therefore necessary control should be carried out the heating of the motor of elec. vehicle.And the applied external rotor electric machine of electronlmobil, battery-operated motor cycle and Electrical Bicycle is because its structural characteristics, and stator is contained on the anchor shaft, thereby can't assemble heat abstractor.
Therefore, need a kind of electric wheel hub, can cool off motor in the process of moving, improve motor working efficiency, energy savings prolongs motor service life, and simple and compact for structure, is applicable to elec. vehicle.
The utility model content
In view of this, the purpose of this utility model provides a kind of air-cooled electric wheel hub, the heat that the motor rotation that can effectively scatter and disappear produces, and effective dissipated heat still when motor turns round for a long time guarantees that motor has higher work efficiency, thereby energy savings, prolong motor service life, simple and compact for structure, do not increase the volume of electric wheel hub, be suitable for elec. vehicle.
Air-cooled electric wheel hub of the present utility model, comprise transmission shaft, wheel hub frame, casing, external rotor electric machine and wheel, described wheel hub frame is captiveed joint with the end cap of casing, transmission shaft and casing normal-running fit, the stator and the end cap of described external rotor electric machine become one, end cap arranged outside radiating gill.
Further, described end cap inwardly is provided with boss, and stator is fixedly installed on the boss;
Further, the rotor of described external rotor electric machine is by transmission bucket outputting power, and described transmission casing is at transmission shaft excircle and its normal-running fit;
Further, described radiating gill is directly processed at the end cap outside face.
The beneficial effects of the utility model are: air-cooled electric wheel hub of the present utility model, optimize electric machine structure, adopt radiating gill to dispel the heat, the heat that the motor rotation that can effectively scatter and disappear produces, and effective dissipated heat still when motor turns round for a long time, guarantee that motor has higher work efficiency, can raise the efficiency 2-5%, thus energy savings, prolong motor service life, simple and compact for structure, do not increase the volume of electric wheel hub, be suitable for elec. vehicle.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further described.
Fig. 1 is the utility model axial section structural representation;
Fig. 2 be Fig. 1 along A to view.
The specific embodiment
Fig. 1 is the utility model axial section structural representation, Fig. 2 be Fig. 1 along A to view, as shown in the figure: air-cooled electric wheel hub of the present utility model, comprise transmission shaft 1, wheel hub frame 5, casing 2, external rotor electric machine and wheel 6, wheel hub frame 5 is captiveed joint with the end cap 21 of casing 2, transmission shaft 1 passes through first annular bearing with rolling contact, 8 normal-running fiies with casing 2, end cap 21 inwardly is provided with boss, stator 3 is arranged on the boss by screw retention and becomes one with end cap 21, be beneficial to heat transfer, heat radiation is fully carried out, and end cap 21 outer surfaces processing groove constitutes radiating gill 22 structures; The rotor 4 of external rotor electric machine is by transmission bucket 9 outputting powers, transmission bucket 9 is enclosed within transmission shaft 1 excircle by second annular bearing with rolling contact 7 and its normal-running fit, adopt transmission bucket 9 structures, and support transmissions, be beneficial to that transmission is stable to be carried out by second annular bearing with rolling contact 7.
Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail 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 breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (4)
1. air-cooled electric wheel hub, comprise transmission shaft (1), wheel hub frame (5), casing (2), external rotor electric machine and wheel (6), described wheel hub frame (5) is captiveed joint with the end cap (21) of casing (2), transmission shaft (1) and casing (2) normal-running fit, it is characterized in that: the stator of described external rotor electric machine (3) becomes one end cap (21) arranged outside radiating gill (22) with end cap (21).
2. air-cooled electric wheel hub according to claim 1 is characterized in that: described end cap (21) inwardly is provided with boss, and stator (3) is fixedly installed on the boss.
3. air-cooled electric wheel hub according to claim 2 is characterized in that: the rotor of described external rotor electric machine (4) is by transmission bucket (9) outputting power, and described transmission bucket (9) is enclosed within transmission shaft (1) excircle and its normal-running fit.
4. air-cooled electric wheel hub according to claim 3 is characterized in that: described radiating gill (22) is directly processed at end cap (21) outside face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820100120 CN201272472Y (en) | 2008-09-26 | 2008-09-26 | Air cooling electric driven hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820100120 CN201272472Y (en) | 2008-09-26 | 2008-09-26 | Air cooling electric driven hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201272472Y true CN201272472Y (en) | 2009-07-15 |
Family
ID=40882820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200820100120 Expired - Fee Related CN201272472Y (en) | 2008-09-26 | 2008-09-26 | Air cooling electric driven hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201272472Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103895494A (en) * | 2012-12-28 | 2014-07-02 | 深圳先进技术研究院 | Rocker arm integration type electric wheel and electric vehicle |
| CN105150827A (en) * | 2015-10-12 | 2015-12-16 | 长春孔辉汽车科技股份有限公司 | Electric wheel-side drive system |
| CN109301976A (en) * | 2018-11-15 | 2019-02-01 | 扬州科光技术发展有限公司 | Bearing type permanent magnet direct-drive hoofing part assembly |
-
2008
- 2008-09-26 CN CN 200820100120 patent/CN201272472Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103895494A (en) * | 2012-12-28 | 2014-07-02 | 深圳先进技术研究院 | Rocker arm integration type electric wheel and electric vehicle |
| CN105150827A (en) * | 2015-10-12 | 2015-12-16 | 长春孔辉汽车科技股份有限公司 | Electric wheel-side drive system |
| CN109301976A (en) * | 2018-11-15 | 2019-02-01 | 扬州科光技术发展有限公司 | Bearing type permanent magnet direct-drive hoofing part assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 Termination date: 20110926 |