CN106476971B - Bicycle pedal piezoelectric generating device - Google Patents
Bicycle pedal piezoelectric generating device Download PDFInfo
- Publication number
- CN106476971B CN106476971B CN201610971770.XA CN201610971770A CN106476971B CN 106476971 B CN106476971 B CN 106476971B CN 201610971770 A CN201610971770 A CN 201610971770A CN 106476971 B CN106476971 B CN 106476971B
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- Prior art keywords
- piezoelectric
- piezoelectric patches
- generating device
- protrusion
- patches
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- 230000007246 mechanism Effects 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims abstract description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 32
- 229910052742 iron Inorganic materials 0.000 claims description 16
- 210000002421 cell wall Anatomy 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 description 7
- 238000010248 power generation Methods 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M3/00—Construction of cranks operated by hand or foot
- B62M3/08—Pedals
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/18—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing electrical output from mechanical input, e.g. generators
Abstract
Bicycle pedal piezoelectric generating device, piezoelectric generating device is installed in the shaft of foot pedal, piezoelectric generating device is made of at least one piezo-electric generating unit, piezo-electric generating unit includes fixed block and piezoelectric patches, piezoelectric patches is connect by conducting wire with energy conversion-stocking mechanism, fixed block is keyed with the axial direction along shaft, and piezoelectric patches one end is fixed with fixed block, and the other end is free end；There is the protrusion that can be contacted with piezoelectric patches, the surface of the protrusion is in arc transition on foot pedal.The present invention has the advantages that can efficiently collect bicycle and man power tramples energy.
Description
Technical field
The present invention relates to use piezoelectric material power field, especially a kind of bicycle pedal piezoelectric generating device.
Background technique
No. CN200810063234.5 discloses a kind of bicycle LED piezoelectric power generation illuminating apparatus, including is arranged voluntarily
The piezoelectric generating device at vehicle compression position and the LED light for being mounted on bicycle body and being connected with piezoelectric generating device；Piezoelectricity
Device includes substrate and the piezoelectric ceramic piece that is fixed on substrate.Bicycle compression position described in the patent application refers to
Between two lateral springs below bike saddle and foot-operated plate surface.The shortcomings that bicycle LED piezoelectric power generation illuminating apparatus, is:
Piezoelectric ceramic piece is mounted on foot-operated plate surface, so that piezoelectric ceramic piece is generated electricity by the deformation of foot pedal, when foot pedal deformation degree
It is small or trample when being partially away from piezoelectric ceramic piece farther out, the mechanical energy of piezoelectric ceramic piece is converted into the conversion ratio of electric energy very
It is low, there is the shortcomings that can not efficiently collecting the energy that bicycle and man power is trampled.
Summary of the invention
The purpose of the present invention is to provide one kind can efficiently collect the bicycle pedal that bicycle and man power tramples energy
Piezoelectric generating device.
Bicycle pedal piezoelectric generating device, which is characterized in that piezoelectric generating device is installed in the shaft of foot pedal,
Piezoelectric generating device is made of at least one piezo-electric generating unit, and piezo-electric generating unit includes fixed block and piezoelectric patches, piezoelectric patches
It is connect by conducting wire with energy conversion-stocking mechanism, fixed block is keyed with the axial direction along shaft, piezoelectric patches one end and fixed block
Fixed, the other end is free end；There is the protrusion that can be contacted with piezoelectric patches, the surface of the protrusion is in arc transition on foot pedal.
In cycling, foot pedal is substantially motionless, shaft rotation.Piezoelectric patches one end is fixed with shaft, therefore piezoelectric patches
Shaft is followed to rotate.And piezoelectric patches one end is fixed, the other end is freely formed cantilever beam, and when protrusion touches piezoelectric patches, piezoelectric patches
Deformation occurs and generates direct piezoelectric effect, and then piezo-electric generating by excited vibration.
Further, piezo-electric generating unit has multiple, and piezoelectric patches is along shaft circumference array；There are multiple protrusions on foot pedal, it is convex
The quantity risen is identical as the quantity of piezoelectric patches, and raised position is corresponding with the position of piezoelectric patches.Raised position and piezoelectric patches
Position correspondence refers to: all protrusions are contacted or are separated with corresponding piezoelectric patches simultaneously.Therefore, more when shaft rotates
A piezoelectric patches is extruded simultaneously, excited vibration, considerably increases generated energy.
Further, fixed block is an iron block, opens up holding tank in shaft, iron block be embedded in holding tank and with holding tank interference
Cooperation, the exposed face of iron block open up slot, and piezoelectric patches one end is fixed in slot.
Further, piezoelectric patches is fixed by screws in the slot of iron block, and the cell wall of piezoelectric patches and slot has gap.
The present invention has relative rotation according to bicycle pedal and shaft, and piezoelectric patches is fixed in shaft, foot pedal setting
The protrusion of piezoelectric patches can be touched, protrusion uses arc transition, therefore the thickness continuous and even variation of protrusion.When rotation, piezoelectricity
Piece is squeezed with protrusion, and when reaching the most thick position of protrusion, extruding force is maximum at this time, raised with the rotation of shaft
Thickness, which is gradually reduced until, returns to nature, this process reciprocation cycle achievees the effect that power generation.
The present invention has the advantages that
1, the raised quantity on foot pedal is identical with the piezoelectric patches quantity in shaft and position is corresponding, and all protrusions are drawn simultaneously
The piezoelectric effect for playing each piezoelectric patches, can greatly increase generated energy, to guarantee stable power supply.
2, due to the compression electricity generating principle according to piezoelectric patches, energy, foot pedal normal direction are inwardly squeezed when foot pedal rotates, and are installed
Iron block is interference fit installation, so can guarantee that installation iron block is not easy to fall off, to ensure that the stability of present apparatus structure.
3, it is that smooth can run that no matter device, which rotates forward or invert all, can be carried out power generation and is stored, is not influenced
User's use habit.
Detailed description of the invention
Fig. 1 is Longitudinal cross section schematic of the invention.
Fig. 2 is the schematic diagram that piezoelectric patches is mounted on fixed block.
Fig. 3 is the schematic diagram that piezoelectric patches is mounted in shaft by fixed block.
Fig. 4 is cross-sectional view of the invention.
Specific embodiment
As shown in Figure 1 and Figure 4, bicycle pedal piezoelectric generating device, piezoelectric generating device are installed on turning for foot pedal 5
On axis 1, piezoelectric generating device is made of at least one piezo-electric generating unit, and piezo-electric generating unit includes fixed block 3 and piezoelectric patches
4, piezoelectric patches 4 is connect by conducting wire with energy conversion-stocking mechanism, and fixed block 3 is keyed with the axial direction along shaft 1, piezoelectric patches 4
One end and fixed block 3 are fixed, and the other end is free end；There is the protrusion 6 that can be contacted with piezoelectric patches 4, the protrusion 6 on foot pedal 5
Surface be in arc transition.
As shown in Fig. 2, fixed block 3 is an iron block, open up holding tank in shaft 1, iron block be embedded in holding tank and with receiving
Slot interference fit, the exposed face of iron block open up slot, and 4 one end of piezoelectric patches is fixed in slot.Piezoelectric patches 4 is fixed by screw 7
In the slot of iron block, the cell wall of piezoelectric patches 4 and slot has gap.
Foot pedal 5 relatively rotates with shaft 1, and piezoelectric patches 4 is rotated with axis, and piezoelectric patches 4 is touched or squeezed power generation.
As shown in figure 3, fixed block 3 and holding tank are interference fitted, therefore do not have to consider fixed block 3(iron block) assembly, this
Place's interference fit is larger, to enhance its flexural strength.Formula piezoelectric patches 4 is stacked to be installed in the slot of iron block (fixed block 3),
It is fixed with housing screw 7, and the fixation of housing screw 7 is slightly loose, makes have gap between piezoelectric patches 4 and the cell wall of slot, to prevent
When high-speed rotation, piezoelectric patches 4 is broken because continuous high speed vibrates, and the electrode surface of each piezoelectric patches 4 is connected by conducting wire
In energy conversion-stocking mechanism.
When people is in riding bicycle, since foot pedal 5 is slammed by people, crank is being rotated, thus the shaft 1 of foot pedal 5
Ceaselessly rotating.When shaft 1 is in rotation, fixed block 3 and piezoelectric patches 4 follow shaft 1 to rotate.Since piezoelectric patches 4 touches
Protrusion 6 on foot pedal 5, foot pedal 5 and protrusion 6 do not rotate, so piezoelectric patches 4 is sent out when piezoelectric patches 4 touches foot pedal 5
Change shape, to generate direct piezoelectric effect, and then piezo-electric generating.When piezoelectric patches 4 is by protrusion 6, since piezoelectric patches 4 has bullet
Property, to keep deformation state.When piezoelectric patches 4 leaves protrusion 6, piezoelectric patches 4 restores deformation, and then contacts again next convex
6 are played, and primary deformation occurs and keeps deformation state, in this way, the rotation mechanical energy of shaft 1 to be converted to the deformation of piezoelectric patches 4
Mechanical energy converts electric energy for rotation mechanical energy to excite the piezoelectric effect of piezoelectric patches 4.Finally by the electrode surface of piezoelectric patches 4
It is connected to energy conversion-storing mechanism by conducting wire, is used for load.
Protrusion 6 uses the arc transition of thickness continuous and even variation.When rotation, piezoelectric patches 4 is squeezed with protrusion 6, when
When reaching the most thick position of protrusion 6, extruding force is maximum at this time, as the thickness of the rotation of shaft 1, protrusion 6 is gradually reduced until
Nature is returned to, this process reciprocation cycle achievees the effect that power generation.
Piezo-electric generating unit has multiple, and piezoelectric patches 4 is along 1 circumference array of shaft；Have multiple raised 6 on foot pedal 5, protrusion 6
Quantity it is identical as the quantity of piezoelectric patches 4, protrusion 6 position it is corresponding with the position of piezoelectric patches 4.The position of protrusion 6 and piezoelectric patches 4
Position correspondence refer to: all raised 6 contact or separate with corresponding piezoelectric patches 4 simultaneously.Therefore, it is rotated in shaft 1
When, multiple piezoelectric patches 4 are extruded simultaneously, excited vibration, considerably increase generated energy.As shown in Figures 3 and 4, piezo-electric generating unit
There are 8.One bicycle can install 16 piezoelectric patches 4 there are two foot pedal 5 and generate electricity, and can greatly increase generated energy, thus
Guarantee stable power supply.
As shown in figure 4, protrusion 6 is symmetrical arc-shaped, therefore shaft 1 either rotates clockwise or rotation counterclockwise
Turn, extruding exciting equally all is carried out to piezoelectric patches 4, so that piezoelectric patches 4 is generated direct piezoelectric effect, achieve the purpose that piezo-electric generating.
Content described in this specification embodiment is only enumerating to the way of realization of present inventive concept, guarantor of the invention
Shield range should not be construed as being limited to the specific forms stated in the embodiments, and protection scope of the present invention is also and in this field skill
Art personnel conceive according to the present invention it is conceivable that equivalent technologies mean.
Claims (4)
1. bicycle pedal piezoelectric generating device, which is characterized in that piezoelectric generating device is installed in the shaft of foot pedal, pressure
Electric power generator is made of at least one piezo-electric generating unit, and piezo-electric generating unit includes fixed block and piezoelectric patches, and piezoelectric patches is logical
It crosses conducting wire to connect with energy conversion-stocking mechanism, fixed block is keyed with the axial direction along shaft, and piezoelectric patches one end and fixed block are solid
Fixed, the other end is free end；There is the protrusion that can be contacted with piezoelectric patches, the surface of the protrusion is in arc transition on foot pedal.
2. bicycle pedal piezoelectric generating device as described in claim 1, it is characterised in that: piezo-electric generating unit has more
A, piezoelectric patches is along shaft circumference array；There are multiple protrusions on foot pedal, raised quantity is identical as the quantity of piezoelectric patches, protrusion
Position it is corresponding with the position of piezoelectric patches.
3. bicycle pedal piezoelectric generating device as claimed in claim 2, it is characterised in that: fixed block is an iron block, is turned
Holding tank is opened up on axis, iron block is embedded in holding tank and is interference fitted with holding tank, and the exposed face of iron block opens up slot, piezoelectric patches
One end is fixed in slot.
4. bicycle pedal piezoelectric generating device as claimed in claim 3, it is characterised in that: piezoelectric patches is fixed by screw
In the slot of iron block, the cell wall of piezoelectric patches and slot has gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610971770.XA CN106476971B (en) | 2016-11-04 | 2016-11-04 | Bicycle pedal piezoelectric generating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610971770.XA CN106476971B (en) | 2016-11-04 | 2016-11-04 | Bicycle pedal piezoelectric generating device |
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| Publication Number | Publication Date |
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| CN106476971A CN106476971A (en) | 2017-03-08 |
| CN106476971B true CN106476971B (en) | 2019-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610971770.XA Active CN106476971B (en) | 2016-11-04 | 2016-11-04 | Bicycle pedal piezoelectric generating device |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107499444B (en) * | 2017-08-17 | 2023-03-24 | 浙江师范大学 | Sharing bicycle self-power location running-board |
| CN108712105B (en) * | 2018-05-08 | 2020-08-11 | 湘潭大学 | Piezoelectric energy harvester for bicycle |
| CN109026168B (en) * | 2018-07-24 | 2019-11-15 | 北京航空航天大学 | A kind of rotor piezo-electric damping resilient supporting unit |
| IT201900014676A1 (en) | 2019-08-12 | 2021-02-12 | Favero Electronics S R L | PEDAL FOR BICYCLES |
| IT202000011956A1 (en) | 2020-05-21 | 2021-11-21 | Favero Electronics S R L | PEDAL FOR BICYCLES |
| IT202000017662A1 (en) | 2020-07-21 | 2022-01-21 | Favero Electronics S R L | PEDAL FOR BICYCLES AND RELATED METHOD OF REALIZATION |
| EP4157701B1 (en) * | 2020-08-10 | 2023-11-01 | Favero Electronics S.R.L. | Pedal for bicycles with integrated generator |
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|---|---|---|---|---|
| KR20110002727A (en) * | 2009-07-02 | 2011-01-10 | 인하대학교 산학협력단 | Self-power generation type safety led lamp in bicycle pedal using multi-layer piezo actuator |
| CN102332843A (en) * | 2011-09-16 | 2012-01-25 | 大连理工大学 | Symmetric rotation piezoelectric generation device |
| CN102647112A (en) * | 2012-05-07 | 2012-08-22 | 哈尔滨工业大学 | Rotary piezoelectric power generator |
| CN203416190U (en) * | 2013-06-14 | 2014-01-29 | 浙江师范大学 | Rotary type hand-operated piezoelectric generating device |
| CN204489085U (en) * | 2015-04-02 | 2015-07-22 | 甲加(北京)科技有限公司 | A kind of can the intelligent pedal of self power generation long range positioning |
| CN105405962A (en) * | 2014-09-08 | 2016-03-16 | 株式会社岛野 | Piezoelectric sensor for bicycle component |
| CN205596037U (en) * | 2016-04-29 | 2016-09-21 | 武汉理工大学 | Piezoelectric power generating device based on exercycle |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6789926B2 (en) * | 2001-03-22 | 2004-09-14 | Chih-Jung Chang | Light-generating bicycle pedal |
-
2016
- 2016-11-04 CN CN201610971770.XA patent/CN106476971B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110002727A (en) * | 2009-07-02 | 2011-01-10 | 인하대학교 산학협력단 | Self-power generation type safety led lamp in bicycle pedal using multi-layer piezo actuator |
| CN102332843A (en) * | 2011-09-16 | 2012-01-25 | 大连理工大学 | Symmetric rotation piezoelectric generation device |
| CN102647112A (en) * | 2012-05-07 | 2012-08-22 | 哈尔滨工业大学 | Rotary piezoelectric power generator |
| CN203416190U (en) * | 2013-06-14 | 2014-01-29 | 浙江师范大学 | Rotary type hand-operated piezoelectric generating device |
| CN105405962A (en) * | 2014-09-08 | 2016-03-16 | 株式会社岛野 | Piezoelectric sensor for bicycle component |
| CN204489085U (en) * | 2015-04-02 | 2015-07-22 | 甲加(北京)科技有限公司 | A kind of can the intelligent pedal of self power generation long range positioning |
| CN205596037U (en) * | 2016-04-29 | 2016-09-21 | 武汉理工大学 | Piezoelectric power generating device based on exercycle |
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| CN106476971A (en) | 2017-03-08 |
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