CN102269382A - Bicycle illumination device and DC (direct current) generator - Google Patents
Bicycle illumination device and DC (direct current) generator Download PDFInfo
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- CN102269382A CN102269382A CN2010101944708A CN201010194470A CN102269382A CN 102269382 A CN102269382 A CN 102269382A CN 2010101944708 A CN2010101944708 A CN 2010101944708A CN 201010194470 A CN201010194470 A CN 201010194470A CN 102269382 A CN102269382 A CN 102269382A
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- generator
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- alternating current
- wheel hub
- double layer
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Abstract
The invention provides a bicycle illumination device and a DC (direct current) generator. The illumination device comprises an AD (alternating current) generator, a rectifier, an electron double-layer capacitor and an illuminant, wherein the rectifier is connected with the AD generator in parallel; the electron double-layer capacitor is connected with the rectifier in parallel; the illuminant is connected with the electron double-layer capacitor in parallel; when the AD generator runs, the AD generator can charge the electron double-layer capacitor; and when the voltage of the illuminant decreases, the electron double-layer capacitor can be discharged so as to maintain the voltage of at least one volt.
Description
Technical field
The invention relates to a kind of bicycle lighting device and dc generator, and especially, be permanent bright lighting device and the wheel hub dc generator that is used for bicycle about a kind of.
Background technology
At present, the compact illumination device that is installed on the bicycle can generally be divided into two kinds.One is supplied with illuminating electric power for itself being equipped with battery, and is another kind of then for providing required electric power by the small generator that itself has had on the bicycle.
And wheel hub generator (Hub Dynamo) or can be described as the flower-drum generator, is a kind of small generator that is specifically applied to bicycle, and its volume is minimum, thus can directly be installed in bicycle, with as the power source that car light is provided.When bicycle is advanced, the rotation that the rotation of axletree can drive the wheel hub generator to be producing electric power, and this electric power directly exports lighting device to, thus, lighting device will need not constantly to replenish or change battery, and can reach the illuminating effect when driving night equally.
Yet, the disadvantage that this wheel hub generator is different from the lighting device with battery is, because its output is alternating current, and the voltage pulsation that the characteristic of alternating current promptly is sinusoidal waveform to be brought, so after exporting lighting device to, can a sudden strain of a muscle one constantly go out along with the fluctuation of voltage equally.Although when the wheel hub generator speed is fast more, human eye can identification the degree of flickering will be not obvious more, so bicycle can not maintain fixing high rotating speed forever, thus, the situation that can't produce light is arranged still, and so and brings potential danger.
The whence is event, and the applicant creates bicycle lighting device of the present invention and dc generator because the disappearance of known technology is through concentrated ground inference and research.
Summary of the invention
The invention provides a kind of bicycle lighting device and dc generator, solve in the prior art problem of stablizing light can't be provided.
According to conception of the present invention, a kind of lighting device is proposed, it comprises an alternating current generator; One rectifier, it is in parallel with this alternating current generator; One electronics double layer capacity, it is in parallel with this rectifier; And an illuminator, it is connected with this electronics double layer capacity, and wherein, when this alternating current generator running, it charges to this electronics double layer capacity, and when this illuminator voltage descended, this electronics double layer capacity discharged and is at least 1 volt with maintenance voltage.
According to above-mentioned conception, wherein this rectifier is a full-wave rectifier.
According to above-mentioned conception, wherein this electronics double layer capacity more is included in this alternating current generator, or is included in this illuminator.
According to above-mentioned conception, wherein this alternating current generator is a wheel hub generator, and this illuminator is a light emitting diode.
According to another conception of the present invention, a kind of supplied by AC/DC electricity device is proposed, it comprises a wheel hub generator; One rectifier, it is in parallel with this wheel hub generator; One electronics double layer capacity, it is in parallel with this rectifier; One first adapter, it is in parallel with this electronics double layer capacity; And one second adapter, it is in parallel with this wheel hub generator.
According to above-mentioned conception, wherein this first with this second adapter be a USB (USB) joint or an IEEE 1394 joints.
According to above-mentioned conception, wherein this rectifier is a full-wave rectifier.
According to another conception of the present invention, a kind of dc generator is proposed, it comprises a wheel hub generator, it produces an alternating current; One rectifier, it is connected in this TRT, in order to this alternating current is carried out rectification; And a super capacitor, it is connected in this rectifier, in order to keep the voltage after the rectification stable.
According to above-mentioned conception, wherein the voltage after this super capacitor maintenance rectification is at least 1 volt, and the capacitance of this super capacitor is at least 0.01 farad.
According to above-mentioned conception, wherein this rectifier is a full-wave rectifier.
Technical scheme provided by the invention, the alternating current that the wheel hub generator produces, can form a direct current by rectifier, the super capacitor that links to each other with this rectifier charges when galvanic voltage rises immediately, and when descending, voltage discharges immediately to keep voltage stable, thereby do not have the situation generation that car light constantly flickers, significantly promote the security and the visibility at night.
Description of drawings
Fig. 1 is the circuit diagram of first embodiment of the invention.
Fig. 2 is the sketch of second embodiment of the invention.
The specific embodiment
See also Fig. 1, it is the circuit diagram of lighting device proposed by the invention.This lighting device 10 comprises a wheel hub generator 11, it produces an alternating current AC, wheel hub generator 11 is in parallel mutually with a bridge rectifier 12, this bridge rectifier 12 comprises four commutation diodes 121,122,123,124, bridge rectifier 12 then is parallel to an electronics double layer capacity 13 (Electric Double-LayerCapacitor), perhaps can be referred to as super capacitor (Ultracapacitor), and be connected in a light emitting diode 14 again.
Alternating current AC by wheel hub generator 11 is produced forms a direct current by meeting behind the bridge rectifier 12.Yet, this galvanic voltage swing still can be along with the time changes, therefore, if desire keeps this light emitting diode 14 still can keep permanent bright state when energising, then need use as the electronics double layer capacity 13 among the present invention keeps voltage to keep more than certain level, as 1 volt, and the capacitance of this electronics double layer capacity 13 is at least 0.01 farad.
Compared to using traditional general electric capacity, super capacitor is because capacitance is very big, and has the characteristic that moment discharges and recharges, thus so that galvanic voltage carries out charging immediately when rising, and when voltage descends, discharge immediately and stablize with maintenance voltage.Thus, when the bicycle that possesses lighting device 10 of the present invention is advanced, promptly do not have the situation that car light constantly flickers and take place, and be able in night significantly improving safety and visibility.
In addition, because the volume of super capacitor is minimum, this super capacitor more can be directly contained in the middle of the wheel hub generator, perhaps is contained in the middle of the lighting car light.General electric capacity is as if the capacitance of desiring to reach identical, and its volume will be very huge, and can not be set directly within wheel hub generator or the car light.
Another advantage of the present invention is, because the capacitance of this super capacitor is very big, even when bicycle stops fully, still can keep the continuous discharge in the certain hour, that is to say that lighting car light still can keep the state that becomes clear and be unlikely to lose efficacy because of generator shuts down.
As another embodiment of the present invention, a kind of charger of AC/DC also can be proposed.See also Fig. 2, it is an alternating current-direct current charging device sketch proposed by the invention.This charging device 20 comprises a wheel hub generator 21, it produces an alternating current AC ', one end of wheel hub generator 21 is in parallel mutually with a bridge rectifier 22, this bridge rectifier 22 comprises four commutation diodes 221,222,223,224, and bridge rectifier 212 then is parallel to an electronics double layer capacity 23.23 of this electronics double layer capacities connect one first adapter 24, and the other end of this wheel hub generator 21 then connects one second adapter 25.
This first and second adapter 24,25 is a USB (USB) joint or an IEEE 1394 joints, perhaps other feasible switching interfaces.
Because through after bridge rectifier 22 and the electronics double layer capacity 23, its output be the direct current of voltage stabilizing, so first adapter 24 can be as galvanic charging end is provided; And on the other hand, directly be still alternating current by what generator 21 exported, so 25 of second adapters can be used as the charging end that alternating current is provided.
Therefore, charging device proposed by the invention more can simply directly apply on the bicycle.That is to say, on one side when bicycle was advanced, the equipment that can be connected directly to the desire charging directly charged.
Basically, although though among the present invention the usefulness of lifting for bridge rectifier, not subject to the limits certainly, other full-wave rectifier or all alternative use of any feasible rectifier; And, the wheel hub generator among the present invention, also can be simple replace with alternating current generator is not limited to use the wheel hub generator; Moreover, light emitting diode can also other arbitrarily illuminator do replacement, do not limit to equally.So this shows, application of the present invention in fact is not limited on the bicycle, as long as utilize as basic conception of the present invention and structure, to get so that lighting device of the present invention and dc generator are implemented in the middle of the other field widely, therefore more significantly promote practicality of the present invention and range of application.
This case be in fact one rare to see, be worth the rare invention treasured, only the above person only is the present invention's preferred embodiment, when can not with the scope implemented of qualification the present invention.Promptly the equalization done of claims of the present invention changes and modifies generally, all should still belong to the scope that patent of the present invention contains.
Claims (10)
1. lighting device, it comprises:
One alternating current generator;
One rectifier, it is in parallel with this alternating current generator;
One electronics double layer capacity, it is in parallel with this rectifier; And
One illuminator, it is connected with this electronics double layer capacity,
Wherein, when this alternating current generator running, it charges to this electronics double layer capacity, and when this illuminator voltage descended, this electronics double layer capacity discharged to keep voltage to be at least 1 volt.
2. device as claimed in claim 1, wherein this rectifier is a full-wave rectifier.
3. device as claimed in claim 1, wherein this electronics double layer capacity more is included in this alternating current generator, or is included in this illuminator.
4. device as claimed in claim 1, wherein this alternating current generator is a wheel hub generator, and this illuminator is a light emitting diode.
5. supplied by AC/DC electricity device, it comprises:
One wheel hub generator;
One rectifier, it is in parallel with this wheel hub generator;
One electronics double layer capacity, it is in parallel with this rectifier;
One first adapter, it is in parallel with this electronics double layer capacity; And
One second adapter, it is in parallel with this wheel hub generator.
6. device as claimed in claim 5, wherein this first with this second adapter be a USB (USB) joint or an IEEE 1394 joints.
7. device as claimed in claim 5, wherein this rectifier is a full-wave rectifier.
8. dc generator, it comprises:
One wheel hub generator, it produces an alternating current;
One rectifier, it is connected in this wheel hub generator, in order to this alternating current is carried out rectification; And
One super capacitor, it is connected in this rectifier, and is stable in order to the voltage after the maintenance rectification.
9. generator as claimed in claim 8, wherein the voltage after this super capacitor maintenance rectification is at least 1 volt, and the capacitance of this super capacitor is at least 0.01 farad.
10. generator as claimed in claim 8, wherein this rectifier is a full-wave rectifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101944708A CN102269382A (en) | 2010-06-04 | 2010-06-04 | Bicycle illumination device and DC (direct current) generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101944708A CN102269382A (en) | 2010-06-04 | 2010-06-04 | Bicycle illumination device and DC (direct current) generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102269382A true CN102269382A (en) | 2011-12-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101944708A Pending CN102269382A (en) | 2010-06-04 | 2010-06-04 | Bicycle illumination device and DC (direct current) generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102269382A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287548A (en) * | 2016-09-30 | 2017-01-04 | 苏州承源光电科技有限公司 | Foot-operated led illuminator |
| CN106287547A (en) * | 2016-09-30 | 2017-01-04 | 苏州承源光电科技有限公司 | Mark time drive led illuminator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1880148A (en) * | 2005-06-17 | 2006-12-20 | 株式会社岛野 | Bicycle lighting device |
| CN201272436Y (en) * | 2008-09-23 | 2009-07-15 | 林敬智 | Bicycle direct current generating unit |
-
2010
- 2010-06-04 CN CN2010101944708A patent/CN102269382A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1880148A (en) * | 2005-06-17 | 2006-12-20 | 株式会社岛野 | Bicycle lighting device |
| CN201272436Y (en) * | 2008-09-23 | 2009-07-15 | 林敬智 | Bicycle direct current generating unit |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287548A (en) * | 2016-09-30 | 2017-01-04 | 苏州承源光电科技有限公司 | Foot-operated led illuminator |
| CN106287547A (en) * | 2016-09-30 | 2017-01-04 | 苏州承源光电科技有限公司 | Mark time drive led illuminator |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20111207 |