CN1164141A - Hub dynamo for use in bicycle - Google Patents
Hub dynamo for use in bicycle Download PDFInfo
- Publication number
- CN1164141A CN1164141A CN 97103110 CN97103110A CN1164141A CN 1164141 A CN1164141 A CN 1164141A CN 97103110 CN97103110 CN 97103110 CN 97103110 A CN97103110 A CN 97103110A CN 1164141 A CN1164141 A CN 1164141A
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- generator
- stator
- generator unit
- bicycle
- unit stator
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- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
Provide a generator for supplying the bicycle lights and supplying auxiliary devices without add burthen to the footplates. The dynamo has a pair of independent stators (5,6) positioned next to one another on the right and left sides of the dynamo shaft (4). The line 11, 12 from the loop 9, 10 of the stators 5, 6 are connect to the bicycle lights and the auxiliary devices.
Description
The present invention relates to cycle hub generator as the power supply of headlight and similar device.
At present generator is widely used as the power supply of headlight and similar device on bicycle.Typical available generator has the wheel hub generator on pulley generator (blockdynamo) that contacts with rubber tyre and the wheel hub that is installed in cycle wheel of being compelled to that is in stand up position.Because the pulley generator has increased the load on the pedal greatly in the generating position, the wheel hub generator does not then have this load to increase thereby catches on.
But no matter the wheel hub generator is by day or night, as long as wheel is even supervention.In order to strengthen the value of bicycle as a kind of commercial product, generate electricity and can not only be used for auxiliary lamp and taillights (bulb or light-emitting diode) such as headlight and direction indicator lamp, but also be used as the power supply of servicing units such as alarm buzzer and charge the battery.
If but the electric energy that the wheel hub generator sends is used as the power supply of servicing unit, to share by them by the electric energy of headlight consumption for original main, the brightness of headlight is with regard to corresponding reduction as a result.Send out electric energy extra and increase again moment for servicing unit and increase load on the pedal.Lost the advantage of wheel hub generator so again.
The present invention develops in order to address the above problem.Cycle hub generator of the present invention comprises two independent layouts but stator arranged side by side, and one is to be used for main generator unit stator to the headlight power supply, and another makes the inferior generator unit stator that is used for to the power supply of the servicing unit beyond the headlight.
Above-mentioned layout has guaranteed the power supply of servicing unit and has not increased load on the pedal, does not also reduce the power supply of headlight simultaneously.
According to the present invention, main generator unit stator and time bill machine stator press the phase shift system layout, thus the inserted tooth of the wheel hub generator that provides to move effect little.
According to the present invention, the number of poles of the number of poles of main generator unit stator and time generator unit stator equates, and phase difference is set as 1/ (stator poles X2).
According to the present invention, the number of poles of the number of poles of main generator unit stator and time generator unit stator is set as unequal.
Fig. 1 is the sectional view of a generator.
Fig. 2 is the indicative sectional view of this generator.
Fig. 3 is the schematic diagram in expression generator powered path.
Fig. 4 is the curve chart of the voltage that sends of expression generator.
Referring now to accompanying drawing embodiments of the invention are discussed.As shown in Figure 1, generator 1 is installed on the wheel hub of bicycle quick.The cylinder yoke 2 that constitutes generator 1 circumference within it has the left and right sides carriage 3 at the two ends of two permanent magnet 2a and sealing yoke 2.The outstanding flange section of carriage 3 has installing hole 3b, and insert wherein the inner end of spoke.Thereby wheel is designed to rotate according to the mode identical with the prior art bicycle with yoke 2.
Axletree 4 by left and right sides carriage 3 at bearing 4a, the 4b upper support.The ledge of axle 4 is by bicycle rack (not shown) rigid support.First stator 5 and second stator 6 are at right-hand side and left-hand side is pressed and column position (side-by-side) is installed on the axletree 4, respectively as main generator unit stator of the present invention and time generator unit stator.The structure of first and second stators 5,6 has the utmost point 7,8 of the first and second crowbar shapes, and stator coil 9, the 10 stator core 9a in the utmost point 7,8 respectively, on the 10a.Lead-in wire 11,12 links to each other with stator coil 9,10, and first lead-in wire 11 that comes out from first stator coil 9 links to each other with the headlight of not expressing, and second goes between and 12 link to each other with servicing unit except that headlight from what second stator coil 10 came out.Be labeled as 13 be the magnetic shielding material that is clipped between first and second stators 5,6.
Each first utmost point 7 by about part constitute, have a plurality of tooth 7a that isolate to distribute along circumference by a constant pitch, 7b.These teeth 7a, 7b fork mutually close.Second utmost point 8 also has the tooth 8a that is similar distribution, 8b (but their axial length is than tooth 7a, and 7b is long).The utmost point 7 and 8 according to the two poles of the earth stagger half tooth apart from such mode be installed in the axle 4 on.Thereby first and second phase difference between the stator 5,6 be 1/ (stator poles X2).
In the present embodiment, the number of poles of first and second stators 5,6 is identical, for example all is 28 utmost points.When bicycle travelled with the speed of 15km/h, first stator 5 provided 2.4 watts, 6 volts electric energy, and second stator 6 provides 0.6 watt, 6 volts electric energy.
As mentioned above, according to embodiments of the invention, when bicycle turns round, yoke 2 and the whole rotation of wheel, first and second stators 5,6 produce alternating current respectively in its stator coil 9,10.First and second stators 5,6 are arranged to arranged side by side physically, and they produce electric energy respectively when yoke 2 rotations.The electric energy that first stator coil 9 sends only is used to drive headlight, and the electric energy that second stator coil 10 sends is used for servicing unit.Generator 1 does not consume the electric energy of headlight when servicing unit is powered.Headlight keeps luminance level constant and the phenomenon that load increases on the pedal do not take place.
Phase difference between first and second stators 5,6 is 1/ (stator poles X2).This layout shortened when magnetic pole 7 and 8 with respect to wheel rotation and the interval that inevitable inserted tooth moves effect when mobile.Reduce owing to move the sensation of effect for inserted tooth, thereby the load on the bicycle is just more even.
The present invention is not limited to the foregoing description.The main generator unit stator number of poles can be set as different with time generator unit stator number of poles.In this case, may not need between two stators, phase difference be arranged.Even now can increase the simplification of assembling, but the permanent magnet that is installed in the inner periphery of yoke need carry out corresponding layout.For example, when main generator unit stator had 28 utmost points, inferior generator unit stator can have 26 utmost points or 12 utmost points.
Claims (4)
1. the wheel hub generator that is used for bicycle comprises the main generator unit stator and the inferior generator unit stator that is used for to the power supply of the servicing unit except that headlight that are used for to the headlight power supply, and wherein main generator unit stator and time generator unit stator are independently arranged but be in and column position.
2. according to the wheel hub generator that is used for bicycle of claim 1, wherein main generator unit stator and inferior generator unit stator are arranged according to the mode that has phase difference between them.
3. according to the wheel hub generator that is used for bicycle of claim 2, wherein the number of poles of main generator unit stator is identical with the number of poles of time generator unit stator, introduces the phase difference of 1/ (number of poles X2) between the two at main generating level stator and inferior generator unit stator.
4. according to the wheel hub generator that is used for bicycle of claim 2, the number of poles of wherein main generating level stator is different with the number of poles of time generator unit stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97103110 CN1164141A (en) | 1996-04-18 | 1997-03-12 | Hub dynamo for use in bicycle |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP120965/96 | 1996-04-18 | ||
| CN 97103110 CN1164141A (en) | 1996-04-18 | 1997-03-12 | Hub dynamo for use in bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1164141A true CN1164141A (en) | 1997-11-05 |
Family
ID=5166546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97103110 Pending CN1164141A (en) | 1996-04-18 | 1997-03-12 | Hub dynamo for use in bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1164141A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1099978C (en) * | 1998-01-30 | 2003-01-29 | 三洋电机株式会社 | Engine for bicycle |
| CN105283353A (en) * | 2013-09-11 | 2016-01-27 | 株式会社美姿把 | Vehicle lighting control device |
-
1997
- 1997-03-12 CN CN 97103110 patent/CN1164141A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1099978C (en) * | 1998-01-30 | 2003-01-29 | 三洋电机株式会社 | Engine for bicycle |
| CN105283353A (en) * | 2013-09-11 | 2016-01-27 | 株式会社美姿把 | Vehicle lighting control device |
| CN105283353B (en) * | 2013-09-11 | 2017-10-17 | 株式会社美姿把 | Bicycle use lighting control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |