CN107565850B - Bistable state piezoelectric cantilever power generation box - Google Patents
Bistable state piezoelectric cantilever power generation box Download PDFInfo
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- CN107565850B CN107565850B CN201710749898.6A CN201710749898A CN107565850B CN 107565850 B CN107565850 B CN 107565850B CN 201710749898 A CN201710749898 A CN 201710749898A CN 107565850 B CN107565850 B CN 107565850B
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- spring
- bounce
- gear
- piezoelectric cantilever
- rack
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- 238000010248 power generation Methods 0.000 title claims abstract description 19
- 239000010410 layer Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 2
- 239000002033 PVDF binder Substances 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 230000010287 polarization Effects 0.000 claims description 2
- 229920000728 polyester Polymers 0.000 claims description 2
- 229920002981 polyvinylidene fluoride Polymers 0.000 claims description 2
- 239000011241 protective layer Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000005611 electricity Effects 0.000 description 5
- 238000006073 displacement reaction Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000010426 asphalt Substances 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 210000003464 cuspid Anatomy 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention discloses bistable state piezoelectric cantilever power generation boxes, including pedal, cover board, cabinet, gear, rack gear, spring, sleeve, the two-sided rack, bounce fixture, bounce tooth, cantilever beam and magnet block, the cover board is connected by screw to cabinet, pedal is located above cover board, it is connect with rack gear, rack gear lower end and the internal sleeve connection that spring is housed, rack gear is engaged with pinion gear, pinion gear is coaxially fixed with gear wheel, gear wheel is engaged with the two-sided rack of its two sides, the two-sided rack and bounce tooth contact, bounce tooth is mounted on bounce fixture by spring and shaft, piezoelectric cantilever is installed on bounce fixture and the sleeve connection of spring is housed with inside, the piezoelectric cantilever basal layer upper and lower surface posts piezoelectric patches, the magnet block opposite with cantilever beam end magnets block magnetic pole is installed on cabinet wall.
Description
Technical field
The present invention is a kind of bistable state piezoelectric cantilever power generation box, can effectively acquire collection pedestrian and vehicle to ground effects
Machinery can be carried out power generation, belong to piezo-electric generating and regenerated environment protecting new energy field.
Background technique
With the reduction of the non-renewable energies such as natural gas, petroleum, the energy becomes the significant problem that the world today faces, and seeks
Look for novelty the energy while using renewable energy be essential.It can be by all state's environment using the direct piezoelectric effect of piezoelectric material
In mechanical energy be converted to electric energy, to realize the self energizing of electronic equipment, energy cycling and reutilization may be implemented, can either solve
Battery altering inconvenience problem, and can be energy saving, protect environment.
Chinese patent (publication number CN104009669A) discloses a kind of piezo-electric floor device of piecemeal cantilever beam structure, should
Invention is acted directly on piezoelectric patches using top plate generate electricity in one apparatus, and piezoelectric patches deformation comparison is small, is difficult to promote.
Chinese patent (publication number CN103986369A) discloses a kind of electric power installation of roadway for deforming and generating electricity using bituminous pavement,
The device is generated electricity using the piezoelectric generating device being mounted in pavement asphalt, but the deformation comparison of piezoelectric patches is small, and is difficult to
It realizes.
Summary of the invention
In order to utilize mechanical energy to greatest extent, and the vibration of various frequencies is made full use of to generate electricity, this hair
Bright to provide a kind of bistable state piezoelectric cantilever power generation box, structure design under any vibration frequency with can have
The ability for imitating power generation can work normally as long as the power or vibration that effect has a certain size, this makes this device have wide answer
Use prospect.
In order to solve the above-mentioned technical problem, the technical solution of bistable state piezoelectric cantilever power generation box of the present invention is: cover board with
Cabinet is connected by screw to；The lower surface of pedal is equipped with spring one, is located above cover board, and connect with rack gear；Rack gear lower end
Portion is connect with the internal sleeve one equipped with spring one；The rack gear is engaged with pinion gear, drives bull gear drive, pinion gear and big
Gear is coaxially fixed；The big pinion gear is mounted on cabinet by gear shaft and bearing；Pair of the gear wheel and its two sides
The engagement of face rack gear；The two-sided rack upper and lower end parts are connect with the internal sleeve two equipped with spring two；The two-sided rack and jump
Movable tooth contact；The bounce tooth is mounted on bounce fixture by spring four and shaft；Piezoelectricity is installed on the bounce fixture
It cantilever beam and is connect with the internal sleeve three equipped with spring three；The sleeve one, sleeve two and sleeve three play guiding and limit
Effect；The piezoelectric cantilever basal layer upper and lower surface posts piezoelectric patches；Installation and cantilever beam end magnetic on the cabinet wall
The opposite magnet block of iron block magnetic pole；When the two-sided rack moves up and down, bounce fixture can be moved with it and be moved, meanwhile,
Tooth of beating under the action of the two-sided rack and spring four rotates, and when turning to certain angle, bounce tooth is just crossed to be connect with it
The rack gear gear teeth of touching, to make to beat fixture generation bounce and make piezoelectric cantilever generation bistable state vibration mounted thereto.
Compared with prior art, the beneficial effects of the invention are as follows.
(1) present invention is deformed piezoelectric cantilever using the bounce of bounce fixture, due to the influence of spring three, jumps
After movable tooth is beated each time, bounce fixture all can sustained vibration until complete attenuation, therefore generating efficiency is high.
(2) of the invention since bounce tooth can continue to beat, this is equivalent to systems stay and is excited, and system capacity utilization rate is high.
(3) present invention increases gear drive, so that the displacement of pedal very little can also be such that two-sided spring and bounce fixture generates
Biggish displacement, therefore piezoelectric cantilever also has biggish amplitude, therefore generating effect is good.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of piezoelectric cantilever in the present invention；
Fig. 2 is the structural schematic diagram that bounce fixture and beat tooth and spring four assemble in the present invention；
Fig. 3 is bounce fixture assembling structure schematic cross-sectional view in the present invention；
Fig. 4 is the structural schematic diagram of in-line gears in the present invention；
Fig. 5 is monnolithic case structural schematic diagram in the present invention；
Fig. 6 is the complete section schematic diagram of monnolithic case knot in the present invention；
In figure:
1- pedal 2- cover board 3- cabinet
One 6- pinion gear of 4- rack gear 5- spring
One 9- the two-sided rack of 7- gear wheel 8- sleeve
Two 11- sleeve of 10- spring, two 12- piezoelectric cantilever
One 14- magnet block of 13- magnet block, two 15- gear shaft
16- bearing 17- bounce fixture 18- bounce tooth
Three 20- of 19- spring bounce tooth shaft 21- spring fixing pin
Four 23- sleeve three of 22- spring
Specific embodiment
The present invention is described in further detail below with reference to specific embodiment.
As shown in Figures 1 to 6, bistable state piezoelectric cantilever power generation box of the present invention, cover board 2 are connected by screw to cabinet 3；
The lower surface of pedal 1 is equipped with spring 1, is located at 2 top of cover board, and connect with rack gear 4；4 lower end of rack gear and inside
Sleeve 1 equipped with spring 1 connects；The rack gear 4 is engaged with pinion gear 6, and gear wheel 7 is driven to rotate, pinion gear 6 and canine tooth
Wheel 7 is coaxially fixed；The big pinion gear 7/6 is mounted on cabinet 3 by gear shaft 15 and bearing 16；The gear wheel 7 and its
The two-sided rack 9 of two sides engages；9 upper and lower end parts of the two-sided rack are connect with the internal sleeve 2 11 equipped with spring 2 10；Institute
The two-sided rack 9 is stated to contact with bounce tooth 18；The bounce tooth 18 is mounted on bounce fixture 17 by spring 4 22 and shaft 20
On；Piezoelectric cantilever 12 is installed on the bounce fixture 17 and is connect with the internal sleeve 3 23 equipped with spring 3 19；The set
Cylinder 1, sleeve 2 11 and sleeve 3 23 all play guiding and limit；12 basal layer upper and lower surface of the piezoelectric cantilever patch
There is piezoelectric patches；The magnet block two 14 opposite with piezoelectric cantilever 12 end magnets block, one 13 magnetic poles is installed on 3 inner wall of cabinet；
When the two-sided rack 9 moves up and down, bounce fixture 17 can be moved with it and be moved, meanwhile, in the two-sided rack 9 and spring 4 22
Under the action of bounce tooth 18 rotate, when turning to certain angle, bounce tooth 18 just cross the rack gear gear teeth being in contact with it,
To which the fixture 17 that makes to beat generates bounce and make piezoelectric cantilever 12 mounted thereto that bistable state vibration occur.
The spring 1, spring 2 10, spring 3 19 and 4 22 elastic-restoring force of spring are appropriate.
All piezoelectric cantilevers 12 are connected to the energy accumulating device of bounce fixture 17 by conductor in parallel.
12 upper and lower surface of piezoelectric cantilever is laid with electrode, and piezoelectric layer and basal layer are connected with conducting wire respectively.
12 protective layer material of piezoelectric cantilever is polyester, and piezoelectricity layer material is the PVDF after polarization, the material of basal layer
Material is one of copper, steel and aluminium alloy.
Bistable state piezoelectric cantilever power generation box of the present invention can be applied to the biggish place of flow of the people, vehicle flowrate, can be used for for
The power supply of the isolated electrons device such as street lamp, automatic vending machine.
In conclusion bistable state piezoelectric cantilever power generation box of the present invention using increasing speed gearing transmission by foot step on ground when it is small
Vertical displacement is transformed into the violent oscillatory motion of piezoelectric cantilever, overcomes frequency to the defect of power generation limitation；Simultaneously as bounce
The application of tooth and bounce fixture, movement can all cause cantilever beam to be repeatedly excited to pedal each time, greatly improve mechanical energy
To the transformation efficiency of electric energy, power generation electricity is improved.Present apparatus structure novel, generating efficiency is high, and capacity usage ratio is high, user
Just.
Although above in conjunction with figure, invention has been described, and the invention is not limited to above-mentioned specific embodiment parties
Formula, the above mentioned embodiment is only schematical, rather than restrictive, the case where not departing from present inventive concept
Under, many variations can also be made, these belong to protection category of the invention.
Claims (6)
1. bistable state piezoelectric cantilever power generation box, it is characterised in that: cover board (2) is connected by screw to cabinet (3)；Pedal (1)
Lower surface is equipped with spring one (5), is located above cover board (2), and connect with rack gear (4)；Rack gear (4) lower end and inside
Sleeve one (8) connection equipped with spring one (5)；The rack gear (4) is engaged with pinion gear (6), drives gear wheel (7) rotation, small
Gear (6) is coaxial fixed with gear wheel (7)；Pinion gear (6) is mounted on gear wheel (7) by gear shaft (15) and bearing (16)
On cabinet (3)；The gear wheel (7) is engaged with the two-sided rack (9) of its two sides；The two-sided rack (9) upper and lower end parts with it is interior
Portion is connected equipped with the sleeve two (11) of spring two (10)；The two-sided rack (9) contacts with bounce tooth (18)；The bounce tooth
(18) it is mounted in bounce fixture (17) by spring four (22) and shaft (20)；Piezoelectricity is installed on the bounce fixture (17)
It cantilever beam (12) and is connect with the internal sleeve three (23) equipped with spring three (19)；The sleeve one (8), sleeve two (11) and set
All play guiding and limit in three (23) of cylinder；Piezoelectric cantilever (12) the basal layer upper and lower surface posts piezoelectric patches；It is described
The magnet block two (14) opposite with piezoelectric cantilever (12) one (13) magnetic pole of end magnets block is installed on cabinet (3) inner wall；It is described
When the two-sided rack (9) moves up and down, bounce fixture (17) can be moved with it and be moved, meanwhile, in the two-sided rack (9) and spring four
(22) beat under the action of tooth (18) rotate, when turning to certain angle, bounce tooth (18), which is just crossed, to be in contact with it
The rack gear gear teeth, to make to beat fixture (17) generation bounce and make piezoelectric cantilever mounted thereto (12) generation bistable state vibration
It is dynamic.
2. bistable state piezoelectric cantilever power generation box according to claim 1, it is characterised in that: the spring one (5), bullet
Spring two (10), spring three (19) and spring four (22) elastic-restoring force are appropriate.
3. bistable state piezoelectric cantilever power generation box according to claim 1, it is characterised in that: the bounce fixture (17)
When being moved to certain value, spring four (22) makes that bounce tooth (18) can be made to beat.
4. bistable state piezoelectric cantilever power generation box according to claim 1, it is characterised in that: all piezoelectric cantilevers
(12) energy accumulating device of bounce fixture (17) is connected to by conductor in parallel.
5. bistable state piezoelectric cantilever power generation box according to claim 1, it is characterised in that: the piezoelectric cantilever
(12) upper and lower surface is laid with electrode, and piezoelectric layer and basal layer are connected with conducting wire respectively.
6. bistable state piezoelectric cantilever power generation box according to claim 1, it is characterised in that: the piezoelectric cantilever
(12) protective layer material is polyester, and piezoelectricity layer material is the PVDF after polarization, and the material of basal layer is in copper, steel or aluminium alloy
It is a kind of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710749898.6A CN107565850B (en) | 2017-08-28 | 2017-08-28 | Bistable state piezoelectric cantilever power generation box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710749898.6A CN107565850B (en) | 2017-08-28 | 2017-08-28 | Bistable state piezoelectric cantilever power generation box |
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| Publication Number | Publication Date |
|---|---|
| CN107565850A CN107565850A (en) | 2018-01-09 |
| CN107565850B true CN107565850B (en) | 2019-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710749898.6A Expired - Fee Related CN107565850B (en) | 2017-08-28 | 2017-08-28 | Bistable state piezoelectric cantilever power generation box |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723616B (en) * | 2018-12-29 | 2021-02-12 | 西安理工大学 | Road deceleration strip power generation device based on bistable vibration |
| CN110752776B (en) * | 2019-05-18 | 2021-10-08 | 浙江师范大学 | Telescopic pipeline flows energy accumulator |
| CN110752775B (en) * | 2019-05-18 | 2021-10-19 | 浙江师范大学 | Water flow vibration piezoelectric generator |
| CN110752779B (en) * | 2019-05-18 | 2021-10-08 | 浙江师范大学 | Telescopic pipeline flow generator |
| CN110752778B (en) * | 2019-05-18 | 2021-10-19 | 浙江师范大学 | Magnetic coupling blunt body turbulent flow vibration-induced generator |
| CN110752777B (en) * | 2019-05-18 | 2021-10-19 | 浙江师范大学 | Blunt body vortex vibration-induced generator |
| CN110752780B (en) * | 2019-05-18 | 2021-10-08 | 浙江师范大学 | Piezoelectric energy harvester for pipeline airflow detection system |
| CN112332697B (en) * | 2020-10-21 | 2022-01-28 | 长春工业大学 | Rotary cam piezoelectric power generation device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013835A (en) * | 2010-06-29 | 2011-04-13 | 上海大学 | Pedal type continuous vibration piezoelectric generating device |
| CN203570520U (en) * | 2013-10-30 | 2014-04-30 | 东北大学 | Hybrid piezoelectric and electromagnetic vibration energy power generation device |
| CN204139530U (en) * | 2014-09-23 | 2015-02-04 | 武汉理工大学 | A kind of Novel pressure electric-type electricity-generating floor |
| CN105897048A (en) * | 2016-05-05 | 2016-08-24 | 重庆大学 | Piezoelectric electricity generation device with wide resonance frequency band |
-
2017
- 2017-08-28 CN CN201710749898.6A patent/CN107565850B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013835A (en) * | 2010-06-29 | 2011-04-13 | 上海大学 | Pedal type continuous vibration piezoelectric generating device |
| CN203570520U (en) * | 2013-10-30 | 2014-04-30 | 东北大学 | Hybrid piezoelectric and electromagnetic vibration energy power generation device |
| CN204139530U (en) * | 2014-09-23 | 2015-02-04 | 武汉理工大学 | A kind of Novel pressure electric-type electricity-generating floor |
| CN105897048A (en) * | 2016-05-05 | 2016-08-24 | 重庆大学 | Piezoelectric electricity generation device with wide resonance frequency band |
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| CN107565850A (en) | 2018-01-09 |
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Granted publication date: 20190614 |