CN209634638U - Bicycle self-powered alarming device - Google Patents

Abstract

The utility model discloses a kind of bicycle self-powered alarming devices, comprising: electricity generation module, rectification module and luminescent device；Wherein, electricity generation module is used in ride to squeeze mechanical energy caused by vehicle seat and is collected, and is converted into the pulse electricity output of exchange；Rectification module is electrically connected with electricity generation module, and the pulse electricity of the exchange for generating electricity generation module is converted to the direct current of single-phase pulsation and exports to luminescent device, so that luminescent device issues warning light.Bicycle self-powered alarming device provided by the utility model, the vibrational energy that human body in ride squeezes vehicle seat and vehicle seat pitch generates is converted to the pulse electricity of exchange by electricity generation module, rectification module is directly output to luminescent device after being handled the pulse electricity of exchange, for the power supply of luminous device for bicycle part, its structure is simple, manufacturing cost is low, cycles and provides convenience and safety for night.

Description

Bicycle self-powered alarming device

Technical field

The utility model relates to circuit field more particularly to a kind of bicycle self-powered alarming devices.

Background technique

Currently, bicycle is at essential Green Travel as people's environmental consciousness and health perception are continuously improved Tool, be even more bicyclists Cup of tea, still, people can inevitably have some peaces while selecting cycling trip Full hidden danger easily causes traffic accident especially fog is larger or the time-division at night.For the safety for ensuring bike rider, Bicycle rear portion is routinely designed with common reflector, which has the advantages that price is low, but there are still itself to shine Problem, when front vehicle light is weaker, the safety of cyclist still will receive very big threat, so how to ensure voluntarily Safety of the vehicle when riding, at emphasis concerned by people.

In addition, in ride, pitch can occur because of Uneven road for bicycle, bicyclist is sitting in vehicle It takes, vehicle seat is constantly squeezed in ride, can also generate no small vibrational energy, if it is possible to be collected and be turned It changes, can be a kind of very important available eco-friendly power source.

Utility model content

The goal of the invention of the utility model is in view of the drawbacks of the prior art, to provide a kind of bicycle self-powered warning dress It sets, can not shine for solving the common reflector in bicycle rear portion itself in the prior art, front vehicle light cycles when weaker The problem of safety of people is on the hazard.

One aspect according to the present utility model provides a kind of bicycle self-powered alarming device, comprising: power generation mould Block, rectification module and luminescent device；Wherein, electricity generation module be used in ride will squeeze vehicle seat caused by mechanical energy into Row is collected, and is converted into the pulse electricity output of exchange；Rectification module is electrically connected with electricity generation module, for generating electricity generation module The pulse electricity of exchange be converted to the direct current of single-phase pulsation and export to luminescent device, so that luminescent device issues warning light.

Optionally, electricity generation module is mounted on inside or the bottom surface of bicycle saddle shell.

Optionally, bicycle self-powered alarming device further include: energy-storage module and switch module；Energy-storage module and rectification mould Block electrical connection, for storing the direct current of rectification module output；Switch module is electrically connected with luminescent device, for controlling photophore Whether part issues warning light.

Optionally, electricity generation module includes at least one generator, generator be friction generator, piezoelectric generator, and/or Piezoelectricity and friction hybrid generator.

Optionally, friction generator is three-decker, four-layer structure, five layers of membrane structure or five layers of intervening electrode knot between two parties The friction generator of structure；Friction generator includes at least two opposite surfaces for constituting frictional interface；Friction generator has At least two electrodes are as electric energy output end.

Optionally, it is constituted in friction generator settable at least one surface in two opposite surfaces of frictional interface There is array of protrusions structure；And/or it constitutes and is provided with gasket between two opposite surfaces of frictional interface；Gasket setting is rubbing Wipe both sides, quadrangle or the surrounding of a side surface on two opposite surfaces at interface.

Optionally, the electrode of friction generator is composite film electrode, and composite film electrode includes: the first film layer, electricity Pole layer, the second film layer, electrode layer are arranged between the first film layer and the second film layer, wherein electrode layer covering first is thin At least partly surface of film layer；Second film layer is covered on the surface of the first film layer and electrode layer；Electrode layer is by conductive high Molecularly Imprinted Polymer or conducting high polymers object and metal nanoparticle or metal mesh are constituted.

Optionally, friction generator is the friction generator based on public electrode, the friction generator based on public electrode It include: two the first friction components, at least one second friction component and at least one third friction component, wherein at two Between first friction component, at least one second friction component and at least one alternately laminated setting of third friction component；First Friction component includes at least: first electrode layer；Second friction component includes: the first high molecular polymer film being stacked Layer, the first common electrode layer and the second high molecular polymer film layer；Third friction component includes: the third high score being stacked Sub- polymer film layer, the second common electrode layer and the 4th high molecular polymer film layer；First electrode layer, the first public electrode Layer and the second common electrode layer are signal output end.

Optionally, friction generator specifically includes the first electrical generation components and the second electrical generation components；First electrical generation components are fixed It is set to bicycle saddle housing bottom surface；One end of second electrical generation components and one end of the first electrical generation components are fixed, and second The other end of electrical generation components is free end；There are gap, the first electrical generation components between first electrical generation components and the second electrical generation components Two surfaces of friction generator frictional interface, the first electrical generation components and the second power generation are constituted with the opposite face of the second electrical generation components Component includes two electrodes for constituting electric energy output end.

Optionally, luminescent device is made of multiple LED light emitting diodes；Luminescent device passes through fixing axle and bike saddle axis Connection.

It can be seen that bicycle self-powered alarming device provided by the utility model, by electricity generation module by ride The vibrational energy that middle human body squeezes vehicle seat and vehicle seat pitch generates is converted to the pulse electricity of exchange, and rectification module will exchange Pulse electricity handled after be directly output to luminescent device, in real time drive luminescent device shine；It further, can also be white The electric energy of conversion is stored using energy-storage module when it is ridden, to provide power supply as luminescent device when riding at night, Structure is simple, and manufacturing cost is low, solves in the prior art that the common reflector in bicycle rear portion itself can not shine, front vehicle The problem of safety of cyclist is on the hazard when light is weaker cycles for night and provides convenience and safety.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of bicycle self-powered alarming device embodiment one provided by the utility model；

Fig. 2 is the functional block diagram of bicycle self-powered alarming device embodiment one provided by the utility model；

Fig. 3 is the structural schematic diagram of four layers of friction generator used by the utility model；

Fig. 4 a is the structural schematic diagram that the friction generator of gasket is provided with used by the utility model；

Fig. 4 b is the cross section structure schematic diagram that the friction generator of gasket is provided with used by the utility model；

Fig. 5 is the structural schematic diagram of composite film electrode used by the utility model；

Fig. 6 is the structural schematic diagram of the friction generator based on public electrode used by the utility model；

Fig. 7 is the structural schematic diagram of bicycle self-powered alarming device embodiment two provided by the utility model.

Specific embodiment

It is practical to this by following specific embodiments for the purpose, feature and effect for fully understanding the utility model It is novel to elaborate, but the utility model is not restricted to this.

Fig. 1 is the structural schematic diagram of bicycle self-powered alarming device embodiment one provided by the utility model, and Fig. 2 is this The functional block diagram for the bicycle self-powered alarming device embodiment one that utility model provides, in the embodiment, comprising: power generation mould Block 10, rectification module 20 and luminescent device 50.

Electricity generation module 10 is used in ride to squeeze mechanical energy caused by vehicle seat and is collected, and converts conclusion of the business The pulse electricity output of stream；

Rectification module 20 is electrically connected with electricity generation module 10, and the pulse electricity of the exchange for generating electricity generation module 10 is converted to The direct current of single-phase pulsation is simultaneously exported to luminescent device 50, so that luminescent device 50 issues warning light.

Optionally, as shown in Figure 1, electricity generation module 10 is mounted on the inside of bicycle saddle shell.

Optionally, as shown in Fig. 2, the present embodiment further include: energy-storage module 30 and switch module 40；Energy-storage module 30 with it is whole Flow module 20 is electrically connected, for storing the direct current of the output of rectification module 20；Switch module 40 is electrically connected with luminescent device 50, is used Warning light whether is issued in control luminescent device 50.

Energy-storage module 30 includes: the filter circuit 31 being connected with rectification module 20, the single-phase arteries and veins that rectification module 20 is exported Dynamic direct current is filtered；The voltage regulator circuit 32 being connected with filter circuit 31, the filtering out of exporting of filter circuit 31 is miscellaneous Direct current after wave interference carries out pressure stabilizing；The transforming circuit 33 being connected with voltage regulator circuit 32, the direct current that voltage regulator circuit 32 is exported Electricity carries out transformation；The energy-storage travelling wave tube 34 being connected with transforming circuit 33, the direct current for exporting transforming circuit 33 store, Energy-storage travelling wave tube 34 can be the energy-storage travelling wave tubes such as lithium battery, nickel-metal hydride battery, super capacitor.Energy-storage module 30 is used to store to ride daytime When the electric energy that converts, played a warning role using providing power supply as luminescent device 50 when riding at night.

Specific working mode: in cycling, bicyclist is sitting on bicycle saddle, is constantly squeezed in ride These vibrational energies are converted to the pulse electricity of exchange by electricity generation module 10 to generate no small vibrational energy by vehicle seat, whole Flow module 20 is directly output to luminescent device 50 after being handled the pulse electricity of exchange, drives luminescent device 50 to shine in real time, In addition the electric energy of conversion can also be stored using energy-storage module 30 when riding daytime, to be luminous when riding at night Device 50 provides power supply and plays a warning role.

The above-mentioned electricity generation module 10 referred to include at least one generator, generator be friction generator, piezoelectric generator, And/or piezoelectricity and friction hybrid generator.

Friction generator is the friction generator of layer structure, and piezoelectric generator is the piezoresistive materials such as zinc oxide, PZT, PVDF Expect the piezoelectric generator of production.

In example 1, friction generator using three-decker, four-layer structure, five layers between two parties membrane structure or five layers residence Between electrode structure, friction generator include at least constitute frictional interface two opposite surfaces, and friction generator have extremely Few two electrodes are as electric energy output end.

In order to enable two opposite surfaces for constituting frictional interface in friction generator to better contact with friction, rub Constituting in generator may be provided with array of protrusions structure at least one surface in two opposite surfaces of frictional interface, convex Playing array structure can be for according to rectangle or multiple salient points of diamond array composition, wherein salient point can be cylindrical body, circular cone Body, pyramid body or polygonal body；Or array of protrusions structure is that multiple banded structures are arranged to make up according to geometry, geometry row Column can be the array of shapes such as well word, fork word, zebra line style, cross or mouth word.Type, quantity of the present embodiment to bulge-structure It is not construed as limiting, those skilled in the art can be with flexible setting.Fig. 3 is the structural schematic diagram of four layers of friction generator, including first Electrode 111 and the first high polymer layer 112, second electrode 121 and the second high polymer layer 122.Wherein, first is high Molecular polymer layer 112 and the opposite surface of the second high polymer layer 122 constitute frictional interface, and at least one surface It is upper that there is array of protrusions structure 13.

Further, Fig. 4 a is the structural schematic diagram for being provided with the friction generator of gasket, and Fig. 4 b is to be provided with gasket The cross section structure schematic diagram of friction generator.As shown in fig. 4 a, in order to make in friction generator constitute frictional interface two phases Pair surface can better contact with separation, constitute between two opposite surfaces of frictional interface setting gasket 14, gasket 14 It may be provided at both sides, quadrangle or the surrounding of a side surface of two frictional interfaces.14 material therefor of gasket is that can play support to make The conventional commercials high molecular material such as insulating materials, such as polyimides, polyethylene, polypropylene, to guarantee two friction circles There is certain gap between face, generator has preferable output effect.

Optionally, composite film electrode can be used in the electrode of friction generator in embodiment one.Fig. 5 is composite film electrode Structural schematic diagram, composite film electrode include: the first film layer 1112, electrode layer 1111 and the second film layer 1113, electrode Layer 1111 is arranged between the first film layer 1112 and the second film layer 1113, and electrode layer 1111 covers the first film layer 1112 At least partly surface, the second film layer 1113 are covered on the surface of the first film layer 1111 and electrode layer 1112.

Wherein, the area ratio of the area of electrode layer 1111 and the first film layer 1112 is 0.5-1:1,1111 edge of electrode layer With at a distance from 1112 edge of the first film layer be 0-20mm；The first film layer 1112 and the second film layer 1113 separately by Thermosetting macromolecule material is formed, preferably silica gel and polyethylene terephthalate, wherein silica gel is preferably poly dimethyl silicon Oxygen alkane.

Electrode layer 1111 can be made of conducting high polymers object, can also be received by conducting high polymers object and metal Rice grain is constituted, and conducting high polymers object is polythiophene base conducting high polymers object, specifically based on polythiophene base Conducting high polymers object aqueous solution, the dispersed and thermal stability of the polythiophene base conducting high polymers object in water are good. Metal nanoparticle be selected from gold nano grain, silver nano-grain, copper nano particles, palladium nano-particles and ruthenium nano-particle extremely Few one kind.

Electrode layer 1111 can also be made of metal mesh, and metal mesh is made of metal wire, the arrangement between metal wire not by Special limitation, as long as guaranteeing the intensity of electrode layer, metal mesh can for parallel solid matter, part overlap joint, cross-lap joint or The grid that the metal wire of diamond shape lap joint form is constituted, electrode layer and the first and second film layers have sufficiently large contact surface as a result, Product, it is not easily to fall off, to have good charge-trapping ability.The electrode layer of the composite film electrode is arranged in the first film layer And second between film layer, relative to the membrane electrode of existing plating metal on surface layer, which is firmly combined, even if by It is also not easily to fall off in the biggish situation of power.

In another optional embodiment, friction generator is a kind of friction generator based on public electrode.Base In the friction generator of public electrode include: two the first friction components, at least one second friction component and at least one Three friction components；Between two the first friction components, at least one second friction component and at least one third friction component Alternately laminated setting；First friction component includes at least: first electrode layer；Second friction component includes: first be stacked High molecular polymer film layer, the first common electrode layer and the second high molecular polymer film layer；Third friction component includes: layer Third high molecular polymer film layer, the second common electrode layer and the 4th high molecular polymer film layer of folded setting；First electricity Pole layer, the first common electrode layer and the second common electrode layer are signal output end.Those skilled in the art can be according to actual needs The quantity of at least one second friction component and at least one third friction component is configured, herein without limitation.It is based on The friction generator integral thickness of public electrode is small, and the generated energy in unit volume is high.Further, it is also possible to by multiple based on public The friction generator of electrode is stacked, and electricity generation module power output is further increased.

Fig. 6 is the structural schematic diagram of the friction generator based on public electrode, as shown in fig. 6, rubbing based on public electrode Wiping generator includes: two first friction components 610a and 610b, two second friction component 620a and 620b and one the Three friction components 630.Between two first friction components 610a and 610b, two the second friction component 620a and 620b and One alternately laminated setting of third friction component 630, i.e. third friction component 630 setting in two the second friction component 620a and Between 620b.

Wherein, the first friction component 610a includes: first electrode layer；First friction component 610b includes: first electrode layer.

Second friction component 620a includes: the first high molecular polymer film layer 621a being stacked, the first common electrical Pole layer 622a and the second high molecular polymer film layer 623a；Second friction component 620b includes: the first high score being stacked Sub- polymer film layer 621b, the first common electrode layer 622b and the second high molecular polymer film layer 623b.

Third friction component 630 includes: the third high molecular polymer film layer 631 being stacked, the second public electrode Layer 632 and the 4th high molecular polymer film layer 633.

First common electrode layer 622a and 622b be metal mesh structure, the first common electrode layer 622a can by injection molding or Heat pressing process is set between the first high molecular polymer film layer 621a and the second high molecular polymer film layer 623a, and first Common electrode layer 622b can be set to the first high molecular polymer film layer 621b and the second high score by injection molding or heat pressing process Between sub- polymer film layer 623b.

Third friction component 630 can be integrated setting, third high molecular polymer film layer 631 and the 4th high molecular polymerization Object film layer 633 is adhered to respectively in the both side surface of the second common electrode layer 632.Specifically, the second common electrode layer 632 can For the two-sided conducting adhesive cloth with glue film, third high molecular polymer film layer 631 and the 4th high molecular polymer film layer 633 It is adhered on the two-sided glue film of conducting adhesive cloth respectively, i.e., third high molecular polymer film layer 631 is adhered to conducting adhesive cloth wherein On glue film on one side, the 4th high molecular polymer film layer 633 is adhered on the glue film of conducting adhesive cloth another side, so that third is high Molecularly Imprinted Polymer film layer 631, the second common electrode layer 632 and the 4th high molecular polymer film layer 633 are closely adhere to Together, bond strength is high, effectively enhances the firmness of third friction component 630, has more entire third friction component 630 Consistency, performance are more stable.

Wherein, the first high molecular polymer film layer 621a, the second high molecular polymer film layer 623a, third macromolecule Polymer film layer 631 and the 4th high molecular polymer film layer 633, the first high molecular polymer film layer 621b and second are high The material of Molecularly Imprinted Polymer film layer 623b may be the same or different, and those skilled in the art can be configured according to actual needs, Herein without limitation.Wherein, the material and third high molecular polymer film layer 631 of the second high molecular polymer film layer 623a Material between should have certain polarity difference, the material and the 4th polyphosphazene polymer of the first high molecular polymer film layer 621b Certain polarity difference should be had by closing between the material of object film layer 633, to obtain preferable triboelectricity effect.It is preferred that Ground, the first high molecular polymer film layer 621a and the second high molecular polymer film layer 623a are thin using dimethyl silicone polymer Film (PDMS), third high molecular polymer film layer 631 and the 4th high molecular polymer film layer 633 use poly terephthalic acid Glycol ester film (PET), the first high molecular polymer film layer 621b and the second high molecular polymer film layer 623b are used Polydimethylsiloxanefilm film (PDMS).

Fig. 7 is the structural schematic diagram of bicycle self-powered alarming device embodiment two provided by the utility model, embodiment One is that electricity generation module installation site and structure are different from the difference of embodiment two.Electricity generation module is fixedly installed in embodiment two The bottom surface of bicycle saddle shell.Specifically, electricity generation module includes at least one friction generator, and friction generator is specific Including the first electrical generation components 11 and the second electrical generation components 12, the first electrical generation components 11 are fixedly installed on the bottom of bicycle saddle shell Portion surface；One end of second electrical generation components 12 is fixed with 11 one end of the first electrical generation components, and the other end is free end, the second Power Generation Section The area that part 12 covers is corresponding with the first electrical generation components 11.There are skies between first electrical generation components 11 and the second electrical generation components 12 The opposite faces of gap, the first electrical generation components 11 and the second electrical generation components 12 constitute two surfaces of friction generator frictional interface and At least one surface is equipped with array of protrusions structure, and the first electrical generation components 11 and the second electrical generation components 12 include to constitute power output Two electrodes at end.

During cycling, the second electrical generation components 12 with bicycle pitch and with the first electrical generation components 11 not It separate disconnectedly, generates charge inducing, and then convert mechanical energy into the pulse electricity output of exchange.

Optionally, in order to avoid the normal work of the electromagnetic interference influence generator in external environment, outside electricity generation module It is provided with shielded layer, to guarantee the normal work of generator.

Optionally, in order to avoid such as outside environmental elements such as temperature, humidity or dust influence the normal work of generator, hair Matcoveredn is arranged in the external of motor, to guarantee the normal work of generator.

Finally, luminescent device can also be set it should be understood that luminescent device is by fixing axle and bicycle saddle axis connection It sets at other eye-catching warning positions of bicycle.Luminescent device can be made of multiple LED light emitting diodes, and LED shines Diode can also adjust three different brightness, long bright, flashing, quick flashing.It specifically, can be real by control switch module It is existing, it is bright to click switch LED long, then click LED flashing, then click LED quick flashing, set-up mode in this way improves The safety guarantee of bicyclist, the vehicle that behind comes, which can also be easier discovery front, has bicyclist to be carried out in advance around allowing, safety Property it is high.

It can be seen that bicycle self-powered alarming device provided by the utility model, electricity generation module is arranged on vehicle seat, Bicyclist constantly squeezes vehicle seat in ride, to generate no small vibrational energy, is vibrated these by electricity generation module Energy is converted to the pulse electricity of exchange, and rectification module is directly output to luminescent device after being handled the pulse electricity of exchange, real When driving luminescent device shine, in addition the electric energy of conversion can also be stored using energy-storage module when riding daytime, with Power supply is provided for luminescent device when riding at night, structure is simple, and manufacturing cost is low, after solving bicycle in the prior art The problem of common reflector in portion itself can not shine, and the safety of cyclist is on the hazard when front vehicle light is weaker is night Cycling provides convenience and safety.

The various modules that are previously mentioned in the utility model, circuit are by hard-wired circuit, although some of them mould Block, circuit integration software, but the utility model it is claimed be integrated software corresponding function hardware circuit, and not only It is only software itself.

It should be appreciated by those skilled in the art that apparatus structure shown in attached drawing or embodiment is only schematical, table Show logical construction.The module wherein shown as separation unit may be or may not be to be physically separated, as module The component of display may be or may not be physical module.

Finally it should be noted that: listed above is only specific embodiment of the utility model, certain this field Technical staff can be modified to the utility model and modification, if these modifications and variations belong to the utility model right and want Ask and its equivalent technologies within the scope of, be considered as the protection scope of the utility model.

Claims (10)

1. a kind of bicycle self-powered alarming device characterized by comprising electricity generation module, rectification module and luminescent device；Its In,

The electricity generation module is used in ride to squeeze mechanical energy caused by vehicle seat and is collected, and is converted into friendship The pulse electricity output of stream；

The rectification module is electrically connected with the electricity generation module, the pulse electricity conversion of the exchange for generating the electricity generation module For single-phase pulsation direct current and export to the luminescent device, so that the luminescent device issues warning light.

2. bicycle self-powered alarming device according to claim 1, which is characterized in that the electricity generation module is mounted on certainly The inside of driving vehicle seat shell or bottom surface.

3. bicycle self-powered alarming device according to claim 1, which is characterized in that the bicycle self-powered warning Device further include: energy-storage module and switch module；

The energy-storage module is electrically connected with the rectification module, for storing the direct current of the rectification module output；

The switch module is electrically connected with the luminescent device, for controlling whether the luminescent device issues warning light.

4. bicycle self-powered alarming device according to claim 1 or 2, which is characterized in that the electricity generation module includes At least one generator, the generator are friction generator, piezoelectric generator, and/or piezoelectricity and friction hybrid generator.

5. bicycle self-powered alarming device according to claim 4, which is characterized in that the friction generator is three layers Structure, four-layer structure, five layers of friction generator of membrane structure or five layers of intervening electrode structure between two parties；The friction generator is extremely Few two opposite surfaces comprising constituting frictional interface；The friction generator has at least two electrodes as power output End.

6. bicycle self-powered alarming device according to claim 5, which is characterized in that two phases of the frictional interface Pair surface in be provided with array of protrusions structure at least one surface；

And/or gasket is provided between two opposite surfaces of the frictional interface；The gasket is arranged in friction circle Both sides, quadrangle or the surrounding of one side surface on two opposite surfaces in face.

7. bicycle self-powered alarming device according to claim 5, which is characterized in that the electrode of the friction generator For composite film electrode, the composite film electrode includes: the first film layer, electrode layer, the second film layer, and the electrode layer is set It sets between the first film layer and second film layer, wherein the electrode layer covers the first film layer extremely Small part surface；Second film layer is covered on the surface of the first film layer and the electrode layer；

The electrode layer is by conducting high polymers object or conducting high polymers object and metal nanoparticle or metal Net is constituted.

8. bicycle self-powered alarming device according to claim 4, which is characterized in that the friction generator be based on The friction generator of public electrode, the friction generator based on public electrode include: two the first friction components, at least one A second friction component and at least one third friction component, wherein

Between described two first friction components, at least one described second friction component and at least one described third friction The alternately laminated setting of component；

First friction component includes at least: first electrode layer；

Second friction component includes: the first high molecular polymer film layer being stacked, the first common electrode layer and Two high molecular polymer film layers；

The third friction component includes: the third high molecular polymer film layer being stacked, the second common electrode layer and Four high molecular polymer film layers；

The first electrode layer, first common electrode layer and second common electrode layer are signal output end.

9. bicycle self-powered alarming device according to claim 4, which is characterized in that the friction generator is specifically wrapped Include the first electrical generation components and the second electrical generation components；

First electrical generation components are fixedly installed on bicycle saddle housing bottom surface；The one of second electrical generation components It holds and is fixed with one end of first electrical generation components, the other end of second electrical generation components is free end；

There are gap, first electrical generation components and described second between first electrical generation components and second electrical generation components The opposite face of electrical generation components constitutes two surfaces of friction generator frictional interface, first electrical generation components and second hair Electrical components include two electrodes for constituting electric energy output end.

10. bicycle self-powered alarming device according to claim 1, which is characterized in that the luminescent device is by multiple LED light emitting diode is constituted；The luminescent device passes through fixing axle and bike saddle axis connection.