CN203225678U - Piezoelectric power generation device based on stairs - Google Patents
Piezoelectric power generation device based on stairs Download PDFInfo
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- CN203225678U CN203225678U CN 201320203257 CN201320203257U CN203225678U CN 203225678 U CN203225678 U CN 203225678U CN 201320203257 CN201320203257 CN 201320203257 CN 201320203257 U CN201320203257 U CN 201320203257U CN 203225678 U CN203225678 U CN 203225678U
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- elastic rod
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Abstract
The utility model discloses a piezoelectric power generation device based on stairs. The piezoelectric power generation device comprises a rotor and a stator; the rotor is composed of a pedal (6) and positioning pins (5) connected with the pedal (6), and is arranged above the stator; the stator is composed of a substrate (1) as well as supporting limiting bars (2), springs (3) and piezoelectric power generation units (4) which are arranged on the substrate (1), wherein each piezoelectric power generation unit (4) is composed of an upper pressing plate (48), a T-shaped elastic rod (45), a driving pressing block (46) which is arranged on the T-shaped elastic rod (45) and is adjacent to the upper pressing plate (48), a driven pressing block (44) which is arranged at a lower-side end portion of the T-shaped elastic rod (45), an A supporting plate (40), a B supporting plate (49), a connecting piece (47), a copper plate (42) as well as an A piezoelectric ceramic sheet (41) and a B piezoelectric ceramic sheet (42) which are pasted on the upper surface and the lower surface of the copper plate (42); and the piezoelectric power generation units (4) are fixed on the upper surface of the substrate (1).
Description
Technical field
The utility model relates to a kind of energy recycle device that utilizes the piezoceramic material direct piezoelectric effect, specifically, relates to a kind of piezoelectric generating device based on stair.
Background technology
Extremely concern and the attention of countries in the world of development and utilization along with problems such as the day of the energy is becoming tight and the enhancing day by day of people's environmental consciousness, energy-conserving and environment-protective and environment friendly and pollution-free new forms of energy.Utilize device that the piezoelectric ceramic direct piezoelectric effect generates electricity because it has environmental protection and energy saving, electromagnetic interference simple in structure, no, is easy to realize, low cost and other advantages, become countries in the world researcher's the focus of attention.Utilize body kinetic energy to carry out piezo-electric generating, meet current energy conservation and environment protection, and have high economic benefit.
Study both at home and abroad to utilize body kinetic energy to carry out piezoelectric generating device more, typical in the piezo-electric generating footwear, domestic publication number is a kind of piezoelectric generating device and the electricity-generating method thereof based on human body kinetic energy stimulation that the CN101728975A patent is invented, it is a kind of piezo-electric generating composite plate of pin type, be installed on shoe-pad or sole, the portion of energy of the daily walking movement of people is converted to electric energy.But, present piezo-electric generating footwear or sheerly personal behavior of shoe-pad, generating disperses, and energy output is little, directly tramples piezoelectric ceramic piece and easily causes its damage of breaking, and economic and practical is poor.If the kinetic energy that utilizes the bigger occasion people of flow of the people such as track traffic, market, stair mouth to trample carries out piezo-electric generating, then has bigger economic benefit.
Utilize body kinetic energy to carry out the benefit of piezo-electric generating in order to improve to have now, publication number is that the patent documentation of CN201956927U discloses a kind of piezoelectric generating device that utilizes human body frequently to step on away, this device utilizes human body spring lever mechanism to be trampled the potential energy that forms spring deformation, and then the retracting spring deformation potential knocks piezoelectric and carries out piezo-electric generating, this apparatus structure is simple, cost is low, energy output is concentrated, but in experiment, find, there is certain deficiency in this device, because it is slower that human body is trampled the speed that the lever construction rear foot packs up, it is very little to the percussion power that piezoceramic material forms that spring deformation potential energy discharges the back, influenced the generating conversion efficiency of piezoelectric ceramic piece, in addition, the stroke that human body is trampled is stepped on senses of discomfort such as sky greater than 2mm.
For the energy that utilizes human body to trample the building front step generates electricity, publication number is the piezoelectric generating device that the patent documentation of CN102064734A discloses a kind of building front step, piezoelectric ceramic is arranged between carpet and the following carpet, by human body trampling of piezoelectric ceramic produced electric energy and carry out collection of energy, this device has simple in structure, cost is low, advantages such as energy output is concentrated, but also there is certain deficiency in this device: the piezoelectricity transformation efficiency is low, human body directly impacts piezoelectric ceramic piece after trampling carpet, easily causes the piezoelectric ceramic piece non-plastic fracture to damage.
Summary of the invention
The utility model provides a kind of novel piezoelectric generating device based on stair, purpose is to utilize body kinetic energy to carry out the conversion efficiency of piezo-electric generating in order to improve, and steps on senses of discomfort such as sky when avoiding trampling piezoelectric generating device and directly trample piezoelectric ceramic piece easily to cause its problem such as damage of breaking.
A kind of piezoelectric generating device based on stair comprises mover and stator two parts, and mover is made of pedal 6 and the alignment pin 5 that is connected on the pedal 6, is arranged on the top of stator; Stator is made of substrate 1 and the support limit bar 2, spring 3 and the piezo-electric generating unit 4 that are installed on the substrate 1, substrate 1 is provided with the hole that can match with alignment pin on the mover 5, after alignment pin 5 was inserted into hole on the substrate 1, mover just can not be mobile all around again, can only move up and down; Three support limit bars 2 are installed on substrate 1 upper surface, two are arranged on substrate 1 both sides, one is arranged in the middle of the substrate 1, substrate 1 is divided into two long and narrow zones, in these two long and narrow zones, a plurality of piezo-electric generatings unit 4 is installed, and in each long and narrow zone, every the spacing of 1-3 piezo-electric generating unit 4 betwixt every in a spring 3 is installed; Piezo-electric generating unit 4 is by top board 48, T type elastic rod 45, be arranged on T type elastic rod 45 upsides near the active briquetting 46 of top board 48, be arranged on the driven briquetting 44 of T type elastic rod 45 downside ends, A supporting bracket 40, B supporting bracket 49, connector 47, copper polar plate 42 and the square A piezoelectric ceramic piece 41 and square B piezoelectric ceramic piece 42 formations that stick on copper polar plate 42 upper and lower surfaces, A piezoelectric ceramic piece 41 and B piezoelectric ceramic piece 42 are along thickness direction polarization and polarised direction opposite, and A piezoelectric ceramic piece 41 and the B piezoelectric ceramic piece 42 of all piezo-electric generating unit 4 all are connected in power conversion circuits and energy accumulating device by the serial or parallel connection mode; Initiatively briquetting 46 is arranged on T type elastic rod 45 upsides near the position of top board 48 by bonding or welding manner, initiatively briquetting 46 is 1/10 to 1/2 of T type elastic rod 45 jib-lengths to top board 48 distances, and driven briquetting 44 is arranged on T type elastic rod 45 end downsides by bonding or welding manner; A supporting bracket 40, copper polar plate 42, B supporting bracket 49, T type elastic rod 45 and top board 48 arrange successively from bottom to top, all offering on A supporting bracket 40, copper polar plate 42, B supporting bracket 49, T type elastic rod 45 and the top board 48 can be for the connection holes that connects usefulness, is passed by connector 47 it to be connected as one behind the connection holes of each part and to be fixed on substrate 1 upper surface.After the T type end of T type elastic rod 45 is fixedly clamped by top board 48 and B supporting bracket 49, T type elastic rod 45 has just formed the cantilever lever construction, T type elastic rod 45 places of being fixed are fulcrum, and initiatively briquetting 46 is power arm to the fulcrum section, and driven briquetting 44 is resistance arm to the fulcrum section.
In the vertical direction, the upper level of described top board 48 with the upper level of support limit bar 2 concordant, the height of spring 3 upper surfaces is with initiatively briquetting 46 upper level are concordant, and the upper level of spring 3 and active briquetting 46 all exceeds 0.3 ~ 1.5mm than top board 48 and support limit bar 2 upper level.
When human body is trampled the pedal 6 of mover, pedal 6 and active briquetting 46 move down, according to lever principle, the driven briquetting 44 that is arranged on T type elastic rod 45 downsides will move down the distance that moves down more than active briquetting 46, namely only need pedal 6 and active briquetting 46 are trampled very little distance downwards, can drive piezo-electric generating plate one end and be bent downwardly bigger distance and realize body kinetic energy to the power conversion of electric energy, thereby improve the piezoelectricity conversion efficiency of piezo-electric generating plate.When human body trample finish pin and lift after, the spring 3 on the substrate 1 is because the potential energy that pedal 6 compressions produce begins to discharge, and the pedal 6 of upspringing is to the origin-location, the piezo-electric generating plate then returns to original state by the elasticity of self.Because pedal 6 is bigger, when the people tramples pressing plate, drives a plurality of piezo-electric generatings unit 4 simultaneously and generates electricity, and has utilized human body to trample the kinetic energy of generation to greatest extent.Whole piezoelectric generating device is placed on the bigger stair of the stream of people, and when the people passed through pushes pedals 6 continuously and discharges, this piezoelectric generating device can be finished continuous piezo-electric generating process.
Further, pedal 6 upper berth one deck carpets of whole piezoelectric generating device based on stair carry out outward appearance and beautify.
Because the support limit effect of top board 48 and support limit bar 2, restriction pedal 6, active briquetting 46 and human body only can move down 0.3 ~ 1.5mm, distance is shorter, there is not uncomfortable sensations such as stepping on sky, and avoided human body to trample impulsive force and the direct of piezoelectric ceramic piece contacts, guaranteed that piezoelectric ceramic piece is not by concussion fracture or damage.Compared with prior art, should based on piezoelectric generating devices of stair have simple in structure, power capacity big, complete machine manufacturing assembling easily, low, the piezoelectricity conversion efficiency height of cost, do not have advantages such as sense of discomfort, environmentally safe, long service life such as the sky of stepping on when trampling.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of piezo-electric generating unit in the utility model.
Fig. 3 is the front view of the utility model piezo-electric generating unit.
Fig. 4 is the structural representation of piezo-electric generating unit top board in the utility model.
Fig. 5 is the structural representation of T type elastic rod in piezo-electric generating unit in the utility model.
Fig. 6 is the structural representation of piezo-electric generating unit B supporting bracket in the utility model.
Fig. 7 is the structural representation of piezo-electric generating unit copper polar plate in the utility model.
Fig. 8 is the structural representation of piezo-electric generating unit A supporting bracket in the utility model.
Fig. 9 is the structural representation of active briquetting in piezo-electric generating unit in the utility model.
Figure 10 is the structural representation of the driven briquetting in piezo-electric generating unit in the utility model.
Figure 11 is the structural representation of substrate in the utility model.
Figure 12 is the structural representation of support limit bar in the utility model.
Number in the figure explanation: 1. substrate, 2. support limit bar, 3. spring B, 4. piezo-electric generating unit, 5. alignment pin, 6. pedal, 40.A supporting bracket, 41.A piezoelectric ceramic piece, 42. copper polar plates, 43.B piezoelectric ceramic piece, 44. driven briquettings, 45.T type elastic rod, 46. active briquetting, 47. connector, 48. top boards, 49.B supporting bracket
Embodiment
Shown in Fig. 1-3, comprise mover and stator two parts based on the piezoelectric generating device of stair, mover is made of pedal 6 and the alignment pin 5 that is connected on the pedal 6, is arranged on the top of stator, and pedal 6 materials are pine, long 2200mm, wide 290mm, thick 6mm; Stator is made of substrate 1 and the support limit bar 2, spring 3 and the piezo-electric generating unit 4 that are installed on the substrate 1, substrate 1 material is pine, long 2200mm, wide 290mm, thick 20mm, substrate 1 is provided with the hole that can match with alignment pin on the mover 5, the aperture is 10.1mm, and alignment pin 5 diameters are 10mm, after alignment pin 5 is inserted into hole on the substrate 1, mover just can not be mobile all around again, can only move up and down; Three support limit bars 2 are installed on substrate 1 upper surface, two are arranged on substrate 1 both sides, one is arranged in the middle of the substrate 1, and substrate 1 is divided into two long and narrow zones, in these two long and narrow zones according to spaced set, every side is installed 18 piezo-electric generating unit 4,36 piezo-electric generating unit 4 are installed altogether, and in each long and narrow zone above substrate 1, every the spacing of 1-3 piezo-electric generating unit 4 betwixt every in a spring 3 is installed, footpath 16mm in the spring 3, length 20mm.
Piezo-electric generating unit 4 comprises top board 48, T type elastic rod 45, active briquetting 46, driven briquetting 44, A supporting bracket 40, B supporting bracket 49, screw, copper polar plate 42 and the A piezoelectric ceramic piece 41 and the B piezoelectric ceramic piece 42 that stick on copper polar plate 42 upper and lower surfaces, copper polar plate 42 materials are beryllium-bronze, length is 70mm, width is 50mm, thickness is 0.3mm, the material of A piezoelectric ceramic piece 41 and B piezoelectric ceramic piece 42 is PZT-5, length is 50mm, width is 50mm, thickness is 0.2mm, A piezoelectric ceramic piece 41 and B piezoelectric ceramic piece 42 are along thickness direction polarization and polarised direction opposite, the every pair of A piezoelectric ceramic piece 41 and B piezoelectric ceramic piece 42 carry out parallel connection, and then 36 piezo-electric generating unit 4 are connected in parallel in power conversion circuits and energy accumulating device; Initiatively briquetting 46 is bonded in T type elastic rod 45 upsides near the position of top board 48, and initiatively briquetting 46 is 1/5 of T type elastic rod 45 jib-lengths to top board 48 distances, and driven briquetting 44 is by being bonded in T type elastic rod 45 end downsides; A supporting bracket 40, copper polar plate 42, B supporting bracket 49, T type elastic rod 45 and top board 48 arrange successively from bottom to top, all offering on A supporting bracket 40, copper polar plate 42, B supporting bracket 49, T type elastic rod 45 and the top board 48 can be for the connection holes that connects usefulness, bore dia is 4mm, passed by screw and it is connected as one behind the connection holes of each part and is fixed on substrate 1 upper surface, screw 47 nominal diameters are 3mm.
In the vertical direction, the upper level of described top board 48 with the upper level of support limit bar 2 concordant, the height of spring 3 upper surfaces is with initiatively briquetting 46 upper level are concordant, and the upper level of spring 3 and active briquetting 46 all exceeds 1mm than top board 48 and support limit bar 2 upper level.
Shown in Fig. 4-12, pedal 6, alignment pin 5, substrate 1, support limit bar 2, copper polar plate 42, driven briquetting 44, T type elastic rod 45, active briquetting 46, top board 48, B supporting bracket 49 and A supporting bracket 40 structural representations, demonstrated fully the structure of each part, in order to understand the connecting relation between each part.
The piezoelectric generating device of this utility model is put on the stair, the situation that the simulation human body is trampled experimentizes, when the people tramples mover pedal 6, pedal 6 and active briquetting 46 only can move down 1mm, it is shorter that human body is trampled downward shift length, there is not senses of discomfort such as stepping on sky, according to lever principle, initiatively briquetting 46 moves down 1mm, 44 of driven briquettings that are arranged on T type elastic rod 45 downsides move down 5mm, when trampling pressing plate, have driven a plurality of piezo-electric generatings unit 4 simultaneously and have generated electricity, when the people passed through pushes pedals 6 continuously and discharges, this piezoelectric generating device can be finished continuous piezo-electric generating process.When trampling frequency when being 1Hz, use oscilloscope that the output voltage of A piezoelectric ceramic piece 1 and B piezoelectric ceramic piece 3 is measured, its output voltage maximum is respectively 12.2V and 11.8V, and power generation performance is good.
Claims (7)
1. piezoelectric generating device based on stair is characterized in that: comprise mover and stator two parts, mover is made of pedal (6) and the alignment pin (5) that is connected on the pedal (6), is arranged on the top of stator; Stator is by substrate (1) and be installed in support limit bar (2) on the substrate (1), spring (3) and piezo-electric generating unit (4) constitute, and piezo-electric generating unit (4) are by top board (48), T type elastic rod (45), be arranged on T type elastic rod (45) upside near the active briquetting (46) of top board (48), be arranged on the driven briquetting (44) of T type elastic rod (45) downside end, A supporting bracket (40), B supporting bracket (49), connector (47), copper polar plate (42) and the square A piezoelectric ceramic piece (41) and square B piezoelectric ceramic piece (42) formation that stick on copper polar plate (42) upper and lower surface; A supporting bracket (40), copper polar plate (42), B supporting bracket (49), T type elastic rod (45) and top board (48) arrange successively from bottom to top, all offering on A supporting bracket (40), copper polar plate (42), B supporting bracket (49), T type elastic rod (45) and the top board (48) can be for the connection holes that connects usefulness, is passed by connector (47) it to be connected as one behind the connection holes of each part and to be fixed on substrate (1) upper surface.
2. the piezoelectric generating device based on stair according to claim 1 is characterized in that: described A piezoelectric ceramic piece (41) and B piezoelectric ceramic piece (42) are along thickness direction polarization and polarised direction opposite.
3. the piezoelectric generating device based on stair according to claim 1, it is characterized in that: described A piezoelectric ceramic piece (41) and B piezoelectric ceramic piece (42) all are connected in power conversion circuits and energy accumulating device by the serial or parallel connection mode.
4. the piezoelectric generating device based on stair according to claim 1, it is characterized in that: in the vertical direction, the upper level of described top board (48) with the upper level of support limit bar (2) concordant, the height of spring (3) upper surface is with initiatively briquetting (46) upper level is concordant, and the upper level of spring (3) and active briquetting (46) all exceeds 0.3 ~ 1.5mm than top board (48) and support limit bar (2) upper level.
5. according to claim 1 or 2 or 3 or 4 described piezoelectric generating devices based on stair, it is characterized in that: a plurality of piezo-electric generatings unit (4) is installed on the described substrate (1).
6. according to claim 1 or 2 or 3 or 4 described piezoelectric generating devices based on stair, it is characterized in that: described substrate (1) upper surface is equipped with spring (3) every 1-3 piezo-electric generating unit (4) spacing.
7. according to claim 1 or 2 or 3 or 4 described piezoelectric generating devices based on stair, it is characterized in that: also comprise carpet, carry out outward appearance at described pedal (6) upper berth one deck carpet and beautify.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320203257 CN203225678U (en) | 2013-04-22 | 2013-04-22 | Piezoelectric power generation device based on stairs |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320203257 CN203225678U (en) | 2013-04-22 | 2013-04-22 | Piezoelectric power generation device based on stairs |
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| Publication Number | Publication Date |
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| CN203225678U true CN203225678U (en) | 2013-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320203257 Expired - Fee Related CN203225678U (en) | 2013-04-22 | 2013-04-22 | Piezoelectric power generation device based on stairs |
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| CN (1) | CN203225678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178747A (en) * | 2013-04-22 | 2013-06-26 | 苏州科技学院 | Piezoelectric generating device based on stair |
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2013
- 2013-04-22 CN CN 201320203257 patent/CN203225678U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178747A (en) * | 2013-04-22 | 2013-06-26 | 苏州科技学院 | Piezoelectric generating device based on stair |
| CN103178747B (en) * | 2013-04-22 | 2015-05-13 | 苏州科技学院 | Piezoelectric generating device based on stair |
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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 |
Granted publication date: 20131002 Termination date: 20150422 |
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| EXPY | Termination of patent right or utility model |