CN201283940Y - Power generating hub - Google Patents
Power generating hub Download PDFInfo
- Publication number
- CN201283940Y CN201283940Y CNU2008202123650U CN200820212365U CN201283940Y CN 201283940 Y CN201283940 Y CN 201283940Y CN U2008202123650 U CNU2008202123650 U CN U2008202123650U CN 200820212365 U CN200820212365 U CN 200820212365U CN 201283940 Y CN201283940 Y CN 201283940Y
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- voltage
- transient voltage
- hub
- bicycle
- utility
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Abstract
The utility model discloses a power generation hub, which includes a hub-type generator, wherein, a transient voltage resistor is in parallel connection between two ends of the generator coil, the transient voltage resistor is located between the generator coil and the vehicle lamp and/or cells of the bicycle. The cutoff voltage of the transient voltage resistor is 7.5-8.5. The utility mode has beneficial effects of connecting a transient voltage in parallel between two ends of the generator coil, to protect the vehicle lamp or electrical apparatus or the others in the hub from burnout by voltage increases due to quickened revolution rate.
Description
Technical field
The utility model relates to a kind of bicycle field, specifically is meant a kind of generating flower-drum that can be used for bicycle.
Background technology
Possessing the bicycle power generating system that bicycle generating supply uses for default electrical equipment has now become bicycle production firm most important selling point when competition, therefore, and the emphasis when how the generating of better utilization bicycle has become industry and researches and develops.
Bicycle generation mode on the market mostly adopts bicycle drive shaft to generate electricity at present, it generally is to be equiped with a pair of stator in flower-drum, hold iron core and the hub spindle of using around power coil in the inside of stator, stator be located at can free rotating bicycle drive shaft on, this stator constitutes the hub-type electrical generator with the rotor of being made up of permanent magnet and flower-drum.When cycle wheel turns round, be assemblied in the interior permanent magnet of flower-drum also along with revolution, rotor rotates around stator and produces magnetic force line cutting, makes the generator coil induction produce alternating current, and this generator coil is connected to electric power on the car light or battery of bicycle via two end leads.
This hub-type electrical generator, along with the difference of cycle wheel speed of revolutions, the size of the voltage that coil produced is also different, when rotating speed near to a certain degree the time, the voltage that is produced might make car light and the electrical equipment in the load burn.
The utility model content
The purpose of this utility model is to provide a kind of generating flower-drum, and it can overcome the defective of prior art, can protect car light or electrical equipment in the load, avoids it because rotating speed is too high and unstable, is subjected to the damage of surge pulse.
For achieving the above object, the utility model adopts following structure:
A kind of generating flower-drum, it comprises the hub-type electrical generator, wherein: at described generator coil two ends, be parallel with transient voltage and resist device, described transient voltage resists device and is located at the car light of described generator coil and bicycle or/and between battery.
So-called transient voltage resists device; it is a kind of high-effect protection device of diode form; when its two poles of the earth are subjected to reverse transient state high energy impact events; it can be fast becomes low resistance with the high resistance of its two interpolar; absorption exceeds specified surge power; the voltage clamp that makes two interpolars is effectively protected the precision components in the electronic circuit in a predetermined value, avoids the damage of various surge pulses.Therefore, at the car light of above-mentioned generator coil and bicycle or/and between battery, transient voltage in parallel resists device, when rotating speed too high and when producing high potential, unnecessary voltage can be resisted device by transient voltage and absorb, electric light has avoided it to be subjected to the damage of surge pulse or/and the voltage that battery bore is safety voltage.
The cut-off voltage that above-mentioned transient voltage resists device is 7.5～8.5.Transient voltage resists the cut-off voltage of device; it is the voltage that diode can bear when normal condition; this voltage should be more than or equal to the normal working voltage of protected circuit; otherwise diode can be constantly by loop voltage; but it needs approaching with the normal working voltage in protected loop as far as possible again, so just can whole loop be threatened in the face of overvoltage at it.
The beneficial effects of the utility model are: utilize that transient voltage in parallel resists device at the coil two ends, can protect car light in the flower-drum load or electrical equipment etc. can not burn because of the increase of faster rotational speed voltage in application.
Description of drawings
Fig. 1 is an electrical block diagram of the present utility model.
The specific embodiment
Below in conjunction with drawings and embodiments the utility model is further specified.
As shown in Figure 1, it is an electrical block diagram of the present utility model, it discloses a kind of generating flower-drum, it comprises the hub-type electrical generator, wherein: at described generator coil 1 two ends, be parallel with transient voltage and resist device 2, described transient voltage resists device 2 and is located at the car light of described generator coil 1 and bicycle or/and 3 on battery.
The cut-off voltage that above-mentioned transient voltage resists device is 7.5～8.5.
During application, when the generating flower-drum has load, do not resist device 2 if add transient voltage, its voltage is 8～12V, resist device 2 if add transient voltage, in voltage 8～12V, unnecessary voltage 0.5～2.5V (promptly greater than 7.5～8.5 voltage) is resisted device 2 by transient voltage and absorbs, and has only 7.5～8.5 car lights by bicycle or/and battery 3.
When the generating flower-drum does not have load, do not resist device 2 if add transient voltage, its voltage is 8～30V, the Ruo Ruojia transient voltage resists device 2, unnecessary voltage 0.5～21.5V (promptly greater than 7.5～8.5 voltage) is resisted device 2 by transient voltage and absorbs, and has only 7.5～8.5 car lights by bicycle or/and battery 3.
More than to a kind of being described in detail provided by the utility model, used specific case herein principle of the present utility model and embodiment set forth, the explanation of above embodiment just is used for help understanding method of the present invention and thought thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (2)
1, a kind of generating flower-drum, it comprises the hub-type electrical generator, it is characterized in that: at described generator coil two ends, be parallel with transient voltage and resist device, described transient voltage resists device and is located at the car light of described generator coil and bicycle or/and between battery.
2, generating flower-drum according to claim 1 is characterized in that: the cut-off voltage that described transient voltage resists device is 7.5～8.5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202123650U CN201283940Y (en) | 2008-09-26 | 2008-09-26 | Power generating hub |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202123650U CN201283940Y (en) | 2008-09-26 | 2008-09-26 | Power generating hub |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201283940Y true CN201283940Y (en) | 2009-08-05 |
Family
ID=40948923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202123650U Expired - Fee Related CN201283940Y (en) | 2008-09-26 | 2008-09-26 | Power generating hub |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201283940Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI783028B (en) * | 2017-08-24 | 2022-11-11 | 英商斯密德西有限公司 | Power-generating system, in particular for bicycles |
-
2008
- 2008-09-26 CN CNU2008202123650U patent/CN201283940Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI783028B (en) * | 2017-08-24 | 2022-11-11 | 英商斯密德西有限公司 | Power-generating system, in particular for bicycles |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20170926 |