CN203806094U - Novel center shaft motor - Google Patents
Novel center shaft motor Download PDFInfo
- Publication number
- CN203806094U CN203806094U CN201420157169.3U CN201420157169U CN203806094U CN 203806094 U CN203806094 U CN 203806094U CN 201420157169 U CN201420157169 U CN 201420157169U CN 203806094 U CN203806094 U CN 203806094U
- Authority
- CN
- China
- Prior art keywords
- motor
- rotating shaft
- center shaft
- manpower
- sprocket wheel
- 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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Abstract
The utility model provides a novel center shaft motor for a power-assisted electric bicycle. The center shaft motor is characterized by comprising a housing, a stator, a rotor, a chain wheel, a man-powered chain wheel, a rotating shaft and a center shaft, wherein the housing is fixed to a bicycle body; the stator is fixedly mounted in the housing, and is fixedly connected with the rotating shaft; the chain wheel is fixed to one end of the rotating shaft; the chain wheel is connected with the transmission mechanism of the bicycle through a chain; the center shaft is sleeved with the rotating shaft through a bearing; the center shaft can rotate relativeto the rotating shaft coaxially; the man-powered chain wheel is fixed to one end of the center shaft; the two ends of the center shaft is fixedly connected with the crankshaft of a man-powered pedal. The center shaft motor has the advantages that the energy efficiency of the power-assisted electric bicycle is improved, the electric drive and the man-powered drive do not affect each other, and the deficiency of the conventional design is solved.
Description
Technical field
The utility model patent relates to a kind of novel central-shaft motor, relates to especially the central-shaft motor of assisted electric bicycle.
Technical background
In assisted electric bicycle development history, in order to keep the original outward appearance of bicycle, guarantee safety again, guarantee motor can rationally be applied simultaneously, and design engineers have used different schemes, and central-shaft motor is exactly wherein a kind of.Central-shaft motor is with respect to front turbin generator, rear-wheel motor, and it is disguised better, and because be mounted in bicycle middle and lower part, so the weight distribution of whole assisted electric bicycle is more reasonable, rides safer.
The central-shaft motor of common assisted electric bicycle, what motor power was transferred to that trailing wheel and manpower be transferred to that trailing wheel uses is same set of sprocket system.Wherein manpower input is the same with the mode of Regular Bicycle, with the rotation of toe clip active toothed disk.Motor power is by a bidirectional clutch band active toothed disk.Because used bidirectional clutch, so when motor can drive bicycle walking, can avoid the enforcement of assisted electric bicycle and manpower input to affect motor operation.
For traffic safety, there is the highest riding speed restriction countries in the world to bicycle.And the sprocket system of bicycle is acceleration system.The a set of sprocket system of the common use of motor and manpower, the rotating speed of motor just need to approach the rotating speed of manpower input in design.For electrical motor, this is very low rotating speed.In low speed situation, motor volume just need to do greatly, but also can sacrifice electrical efficiency.
Current terms of settlement, be motor being transferred to before bidirectional clutch, first slow down by deceleration system, to meet the demand that approaches manpower input speed.Cause like this complex structure, power of motor loss is large, mechanical wear is large problem.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of central-shaft motor of assisted electric bicycle, comprise casing, rotor, motor stator, motor sprocket, manpower sprocket wheel, rotating shaft and axis, it is characterized in that, described casing is fixed in bicycle body, fixedly mounts motor stator in casing, and rotor is fixedly connected with rotating shaft, motor sprocket is fixed on one end of rotating shaft, and sprocket wheel is connected with transmission mechanism of bicycle by chain; In rotating shaft, be connected to an axis by bearing carrier ring, axis and coaxially relative rotation of rotating shaft, manpower sprocket wheel is fixed on one end of axis, and axis two ends are fixedly connected with manpower pedal crankshaft.
Described manpower sprocket wheel is sprocket wheel or gear or belt pulley.
Described motor sprocket is sprocket wheel or gear or belt pulley.
Described motor sprocket and manpower sprocket wheel can be at homonymy or homonymies not.
The utility model has the advantage of the energy efficiency that improves power-assisted electric vehicle, driven by power and manpower drive, and are independent of each other, and have solved the deficiency of conventional design.
Brief description of the drawings
Fig. 1 section-drawing of the present utility model
Number in the figure explanation:
1-motor sprocket; 2-axis; 3-rotating shaft; 4-rotor; 5-motor stator; 6-shell; 7-manpower sprocket wheel.
Specific embodiment
Refer to shown in accompanying drawing, the utility model is a kind of central-shaft motor of assisted electric bicycle, comprise casing 6, motor stator 5, rotor 4, motor sprocket 1, manpower sprocket wheel 7, rotating shaft 3 and axis 2, described casing 6 is fixed on bicycle body, at the interior fixed installation motor stator 5 of casing 6, rotor 4 is fixedly connected with rotating shaft 3, and motor sprocket 1 is fixed on one end of rotating shaft 3, and sprocket wheel is connected with transmission mechanism of bicycle by chain; In rotating shaft 3, be connected to an axis 2 by bearing carrier ring, axis 2 and coaxially relative rotation of rotating shaft 3, manpower sprocket wheel 7 is fixed on one end of axis 2, and axis 2 two ends are fixedly connected with manpower pedal crankshaft.
When motor is not worked, manpower drives manpower sprocket wheel 7 by axis 2, and sprocket wheel 7 makes bicycle running by the chain transferring power on sprocket wheel.
When machine operation, rotor drives rotating shaft 3 to rotate, and rotates thereby axle 3 rotates drive motor sprocket wheel 1, makes bicycle running by the chain transferring power on motor sprocket 1.Motor drives and manpower drives non-interference.
The utility model can also adopt following technical measures:
Manpower sprocket wheel and casing are fixed, and axis also can be used as mounting parts, is fixed on equipment, by motor sprocket outputting power.Now can be used for installing and the coaxial occasion of output needs.
Claims (4)
1. a novel central-shaft motor, comprise casing, motor stator, rotor, motor sprocket, manpower sprocket wheel, rotating shaft and axis, it is characterized in that, described casing is fixed in bicycle body, in casing, fixedly mount motor stator, rotor is fixedly connected with rotating shaft, and motor sprocket is fixed on one end of rotating shaft, and sprocket wheel is connected with transmission mechanism of bicycle by chain; In rotating shaft, be connected to an axis by bearing carrier ring, axis and coaxially relative rotation of rotating shaft, manpower sprocket wheel is fixed on one end of axis, and axis two ends are fixedly connected with manpower pedal crankshaft.
2. novel central-shaft motor claimed in claim 1, is characterized in that, described manpower sprocket wheel is sprocket wheel or gear or belt pulley.
3. novel central-shaft motor claimed in claim 1, is characterized in that, described motor sprocket is sprocket wheel or gear or belt pulley.
4. novel central-shaft motor claimed in claim 1, is characterized in that, described motor sprocket and manpower sprocket wheel can be at homonymy or homonymies not.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420157169.3U CN203806094U (en) | 2014-04-02 | 2014-04-02 | Novel center shaft motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420157169.3U CN203806094U (en) | 2014-04-02 | 2014-04-02 | Novel center shaft motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203806094U true CN203806094U (en) | 2014-09-03 |
Family
ID=51444890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420157169.3U Expired - Fee Related CN203806094U (en) | 2014-04-02 | 2014-04-02 | Novel center shaft motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203806094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106542039A (en) * | 2016-10-18 | 2017-03-29 | 浙江绿源电动车有限公司 | Built-in motor component and electric motor car |
-
2014
- 2014-04-02 CN CN201420157169.3U patent/CN203806094U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106542039A (en) * | 2016-10-18 | 2017-03-29 | 浙江绿源电动车有限公司 | Built-in motor component and electric motor car |
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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: 20140903 Termination date: 20210402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |