CN104753394B - A kind of shearing-type piezoelectric harvester and its manufacture method - Google Patents
A kind of shearing-type piezoelectric harvester and its manufacture method Download PDFInfo
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- CN104753394B CN104753394B CN201510115311.7A CN201510115311A CN104753394B CN 104753394 B CN104753394 B CN 104753394B CN 201510115311 A CN201510115311 A CN 201510115311A CN 104753394 B CN104753394 B CN 104753394B
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- force transmission
- support member
- side force
- transmission partses
- copper electrode
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- 238000000034 method Methods 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 230000005540 biological transmission Effects 0.000 claims abstract description 60
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000000919 ceramic Substances 0.000 claims abstract description 48
- 229910052802 copper Inorganic materials 0.000 claims abstract description 48
- 239000010949 copper Substances 0.000 claims abstract description 48
- 239000003292 glue Substances 0.000 claims description 18
- 239000004568 cement Substances 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 241000826860 Trapezium Species 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 6
- 239000002390 adhesive tape Substances 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
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- 229920000647 polyepoxide Polymers 0.000 claims description 4
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- 238000009413 insulation Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 229910052573 porcelain Inorganic materials 0.000 claims description 2
- 238000010008 shearing Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 3
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- 238000005859 coupling reaction Methods 0.000 description 2
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- 238000005303 weighing Methods 0.000 description 1
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Abstract
The present invention proposes a kind of shearing-type energy accumulator, including：Shell, left side Force transmission partses, right side Force transmission partses, support member, piezoelectric ceramics block and copper electrode.Vertical load is converted into horizontal thrust by the structure for being similar to arch by the shearing-type energy accumulator, and by staggered structure, the vertical load on road surface can be converted into the shearing force to piezoelectric by machinery, horizontal thrust is converted into into the shearing force to piezoelectric again, piezoelectric is made to produce detrusion, electric energy is produced, such that it is able to be applied to road surface prisoner's energy.
Description
Technical field
The present invention relates to energy accumulator field, more particularly to a kind of shearing-type piezoelectric harvester.
Background technology
Mechanical vibration are changed into electric energy mainly three kinds of in the following manner：Electromagnetic conversion, electrostatic conversion and piezoelectricity conversion.
Electromagnetic conversion is to convert mechanical energy into electric energy using electromagnetic induction phenomenon, and the shortcoming of this prisoner's energy mode is institute
Volume with coil is big, and output voltage is low, and prisoner can effect on driving birds is not good.
Electrostatic conversion is to encourage the relative area changed between capacitor pole distance between plates or pole plate by external force and change
The method of electric capacity reaching the purpose of conversion energy, this prisoner can mode disadvantage is that an independent power supply is carried for which
For steady weighing apparatus voltage, therefore it is greatly limited in actual applications.
Piezoelectricity conversion is to convert mechanical energy into electric energy using the electromechanical Coupling of piezoelectric.
Above-mentioned prisoner can be pointed out after conversion regime in relative analyses for Roundy, Mateu, Sodano：Piezoelectricity conversion regime
Power electricity conversion performance is good, without the need for additional power supply, is easily miniaturized, and is highly suitable for capturing the mechanical energy in environment, with very wide
Wealthy application prospect.At present, in field of engineering technology even daily life, piezoelectric harvester tool is widely used, and is
A kind of mechanical energy by environment is converted to the equipment of electric energy, and what which utilized is exactly the principle that piezoelectric deformation produces electric energy,
Modal electricity in the such as pocket windmill of piezoelectricity road markings, piezoelectricity, piezo-electric generating footwear, piezoelectricity knapsack and people's daily life
Sub- lighter.Vibrational energy in environment can not only be converted into electric energy by piezoelectric harvester, also can produce humans and animals at the volley
Raw kinetic energy is converted into electric energy.
In prior art, a kind of cymbal energy accumulator of d31 types as shown in figure 1, when external force is acted on cymbal energy accumulator,
By the coupling between metal flat-top conical shell and piezoelectric ceramics interface being changed into radial dilatation mode of oscillation and being made pottery with piezoelectricity
The radial dilatation mode of oscillation superposition of porcelain produces larger radial tension, finally, by allowing piezoelectric ceramics stretcher strain to produce electricity
Energy.However, being d31 or d33 type piezoelectric harvesters mostly in prior art, both energy accumulator piezoelectric moduluses are smaller, energy
Conversion efficiency is relatively low, further, since the load that road traffic is subject to all is vertical load, existing energy accumulator is not all suitable for road
Capture energy in face.
The content of the invention
The present invention proposes a kind of shearing-type energy accumulator, and the shearing-type energy accumulator is by being similar to the structure of arch by vertical load
Horizontal thrust is converted into, and by staggered structure, it is right the vertical load on road surface can be converted into by machinery
The shearing force of piezoelectric, then horizontal thrust is converted into into the shearing force to piezoelectric, make piezoelectric produce detrusion,
Electric energy is produced, such that it is able to be applied to road surface prisoner's energy.
The shearing-type energy accumulator of the present invention, including：Shell, left side Force transmission partses, right side Force transmission partses, support member, piezoelectricity
Ceramic block and copper electrode.
Preferably, shell is made up of two identical domed upper shells and lower house, upper shell and lower house
Buckle in opposite directions and, hollow region is formed in the middle part of two housings, the left and right sides edge part of two housings is respectively provided with two through holes,
Fix for bolt.The upper and lower casing can be made up of steel.
Preferably, the left side Force transmission partses trapezium structure wide in the narrow right side in left side, its left end are welded with three bolts,
Its left side edge is provided with two through holes, and its right-hand end is provided with slide rail, can be tight using slide rail form with support member
Connection.
Preferably, the right side Force transmission partses trapezium structure wide in the narrow left side in right side, its right edge edge is provided with two and runs through
Hole, its left end are provided with slide rail, likewise, can be closely connected using slide rail form with support member.Left side Force transmission partses
With the through hole of right side Force transmission partses with it is corresponding through hole site on shell.Above-mentioned left side, right side Force transmission partses can be by steel
Material is made.
Preferably, the side of support member is provided with slide block, can be with left side Force transmission partses or the slide rail of right side Force transmission partses
Closely connect, multiple apertures are evenly arranged with support member, wherein centrally located support member has mutual mistake in its both sides
The groove opened, the support member positioned at both sides of the edge position are fluted only on the inside of which, and support member equally can be made up of steel.
Preferably, copper electrode also has a connecting portion for connecting wire for stretching out piezoelectric ceramics block part, for inciting somebody to action
The charge-trapping that piezoelectric ceramics is produced gets up and derives, and multiple apertures are equally evenly arranged with copper electrode.
The method of the shearing-type energy accumulator of the manufacture present invention includes：
The first step, by bolt through the through hole of the lower house, left side Force transmission partses and right side Force transmission partses of shell, makes a left side
The lower house of side Force transmission partses, right side Force transmission partses and shell is fixed together, and each support member is tightly fitted in order respectively
On left side Force transmission partses and right side Force transmission partses；
Second step, in two side bonds copper electrodes of piezoelectric ceramics block, the connecting portion connecting wire on copper electrode；
Copper electrode is bonded together with support member interval by the 3rd step using happy Thailand's E-20HP glue epoxide-resin glue；
The upper shell of shell, after glue reaches intensity, is covered in left side Force transmission partses and right side power transmission structure by the 4th step
On part, piezoelectric ceramics block part is located in the hollow region that shell is surrounded, then use nut fixing bolt；
5th step, at the bolt of left side Force transmission partses welding is socketed end baffle, is fixed with nut afterwards, first passed power
To end baffle, then apply a pretension to piezoelectric ceramics.
Preferably, second step is further included：
Step 2.1, in advance will be the bonding plane polishing of piezoelectric ceramics block coarse with miniature electric mill, and is repaired with little file, makes
There is rough shape of stripes in the bonding plane of piezoelectric ceramics block；
Step 2.2, winds several circles with non-stick junction surrounding of the adhesive tape in piezoelectric ceramics block；
Copper electrode and piezoelectric ceramics block are bonded together by step 2.3 with conducting resinl, and unnecessary glue extrusion cleaning dry
Only；
Step 2.4, after pasting, clamps maintenance with flat-nose pliers, removes afterwards within 24 hours；
Step 2.5, will be conducting resinl polishing unnecessary above copper electrode clean with electric mill；
Step 2.6, original hole location on copper electrode are uniformly chosen 4～5, are got into the cave with little electric drill, be easy to copper
Electrode and insulating cement bonding are firm firm, during getting into the cave, should not get into piezoelectric ceramics block；
Step 2.7, uniformly smears one layer of insulating cement in copper electrode, and solidification is polished for 24 hours afterwards with little electric mill
Smooth, in order to ensure insulation effect, the thickness of copper electrode surface glue is about 0.5mm；
Step 2.8, is got into the cave on insulating cement surface with little electric drill, and the place of getting into the cave needs to stagger with the hole of copper electrode itself；Its
It is secondary, rough striped is ground on insulating cement surface with electric mill, after process is completed, by the glue of piezoelectric ceramics block non-stick junction
Band is cleaned out.
Description of the drawings
Fig. 1 is d31 type cymbal energy accumulator schematic diagrams in prior art；
Fig. 2 is the structural representation of shearing-type energy accumulator first embodiment of the present invention；
Fig. 3 is the shell of shearing-type energy accumulator of the present invention；
Fig. 4 is the internal structure schematic diagram of shearing-type energy accumulator of the present invention；
Fig. 5 is the structural representation of two kinds of support members in shearing-type energy accumulator of the present invention；
Fig. 6 is the structural representation in shearing-type energy accumulator of the present invention after copper electrode and piezoelectric ceramics block bonding；
Fig. 7 is the structural representation of present invention shearing energy accumulator second embodiment；
Fig. 8 is the operation principle schematic diagram of shearing-type piezoelectric harvester of the present invention.
Specific embodiment
With reference to Figure of description and embodiment, the specific embodiment of the present invention is described in further detail.With
Lower embodiment is merely to illustrate the present invention, but can not be used for limiting the scope of the present invention.
Referring to accompanying drawing 2-6, the shearing-type piezoelectric harvester of the present invention, including shell, left side Force transmission partses, right side power transmission structure
Part, support member, piezoelectric ceramics block and copper electrode.
Shell is made up of two identical domed upper shells and lower house, and upper shell and lower house are buckled in opposite directions
Come, hollow region is formed in the middle part of two housings, the left and right sides edge part of two housings is respectively provided with two through holes, for bolt
It is fixed.The upper and lower casing can be made up of steel.
The left side Force transmission partses trapezium structure wide in the narrow right side in left side, its left end is welded with three bolts, on the left of which
Edge part is provided with two through holes, and its right-hand end is provided with slide rail, can be closely connected using slide rail form with support member.
The right side Force transmission partses trapezium structure wide in the narrow left side in right side, its right edge edge are provided with two through holes, and which is left
Side end is provided with slide rail, likewise, can be closely connected using slide rail form with support member.Left side Force transmission partses and right side pass
The through hole of power component with it is corresponding through hole site on shell.Above-mentioned left side, right side Force transmission partses can be made up of steel.
The side of support member is provided with slide block, can closely connect with the slide rail of left side Force transmission partses or right side Force transmission partses
Connect, on support member, be evenly arranged with multiple apertures, wherein centrally located support member has mutually stagger recessed in its both sides
Groove, the support member positioned at both sides of the edge position are fluted only on the inside of which, and aperture and groove are provided to can be more in assembling
Plus firm firmly bonding piezoelectric ceramics block and copper electrode, support member equally can be made up of steel.
Copper electrode also has a connecting portion for connecting wire for stretching out piezoelectric ceramics block part, and copper electrode is used for will pressure
The charge-trapping that electroceramics is produced gets up and derives.Multiple apertures are evenly arranged with copper electrode equally, it is more firm in assembling
By firmly bonding piezoelectric ceramics and support member.
The method of the shearing-type energy accumulator of the manufacture present invention includes：
The first step, by bolt through the through hole of the lower house, left side Force transmission partses and right side Force transmission partses of shell, makes a left side
The lower house of side Force transmission partses, right side Force transmission partses and shell is fixed together, and each support member is tightly fitted in order respectively
On left side Force transmission partses and right side Force transmission partses, it is ensured that both sides have the support member of the groove that mutually staggers centrally located, only interior
The reeded support member in side is located at both sides.
Second step, in two side bonds copper electrodes of piezoelectric ceramics block, the connecting portion connecting wire on copper electrode.Wherein, enter
One step includes：
Step 2.1, in advance will be the bonding plane polishing of piezoelectric ceramics block coarse with miniature electric mill, and is repaired with little file, makes
There is rough shape of stripes in the bonding plane of piezoelectric ceramics block；
Step 2.2, winds several circles with non-stick junction surrounding of the adhesive tape in piezoelectric ceramics block；
Copper electrode and piezoelectric ceramics block are bonded together by step 2.3 with conducting resinl, and unnecessary glue extrusion cleaning dry
Only；
Step 2.4, after pasting, clamps maintenance with flat-nose pliers, removes afterwards within 24 hours；
Step 2.5, will be conducting resinl polishing unnecessary above copper electrode clean with electric mill；
Step 2.6, original hole location on copper electrode are uniformly chosen 4～5, are got into the cave with little electric drill, be easy to copper
Electrode and insulating cement bonding are firm firm, during getting into the cave, should not get into piezoelectric ceramics block；
Step 2.7, uniformly smears one layer of insulating cement in copper electrode, and solidification is polished for 24 hours afterwards with little electric mill
Smooth, in order to ensure insulation effect, the thickness of copper electrode surface glue is about 0.5mm；
Step 2.8, in order to ensure follow-up strong bond, needs for the insulating cement on copper electrode surface to do certain process,
First, got into the cave on insulating cement surface with little electric drill, the place of getting into the cave needs to stagger with the hole of copper electrode itself；Secondly, existed with electric mill
Insulating cement surface grinds rough striped, after process is completed, the adhesive tape of piezoelectric ceramics block non-stick junction is cleaned out.
Copper electrode is bonded together with support member interval by the 3rd step using happy Thailand's E-20HP glue epoxide-resin glue.
The upper shell of shell, after glue reaches intensity, is covered in left side Force transmission partses and right side power transmission structure by the 4th step
On part, piezoelectric ceramics block part is located in the hollow region that shell is surrounded, then use nut fixing bolt.
5th step, at the bolt of left side Force transmission partses welding is socketed end baffle, is fixed with nut afterwards, first passed power
To end baffle, then apply a pretension to piezoelectric ceramics.It should be noted that the dynamics of tightening nuts is light, otherwise
Bonding portion in the middle of bad may be drawn.
With reference to Fig. 8, the operation principle of shearing-type piezoelectric harvester of the present invention is illustrated.
The shearing-type piezoelectric harvester of the present invention is placed on road surface, energy accumulator is subject to vertical pressure, is made in arch shell
With under, vertical load q (t) is converted into horizontal thrust F, by end baffle and bolt, horizontal thrust F is delivered to the left and right sides
Force transmission partses, pass to support member then, and horizontal thrust F is averagely allocated to the piezoelectric ceramics of centre eventually through support member,
Realize the shearing to piezoelectric ceramics.
It is alternatively possible to as needed increase or reduce support member quantity and piezoelectric ceramics block number.
It is alternatively possible in layer be stacked up one piece of piezoelectric ceramics block of replacement with multiple piezoelectric ceramic pieces.
Alternatively, referring to accompanying drawing 7, left side Force transmission partses and right side Force transmission partses can be turned over and is turn 90 degrees, meanwhile, support member
Also turn over and turn 90 degrees, arrange in horizontal direction.In alternative embodiments, the shape of Force transmission partses can also be done and changes accordingly
Dynamic, support member is also put along corresponding any angular orientation.
Above content is with reference to specific preferred implementation further description made for the present invention, it is impossible to assert
The present invention be embodied as be confined to these explanations.For general technical staff of the technical field of the invention,
On the premise of without departing from present inventive concept, some simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (9)
1. a kind of shearing-type piezoelectric harvester, including：Shell, left side Force transmission partses, right side Force transmission partses, support member, piezoelectricity pottery
Porcelain block and copper electrode, it is characterised in that：
Shell is made up of two identical domed upper shells and lower house, and upper shell and lower house are buckled in opposite directions and,
So as to hollow region is formed in the middle part of two housings, the left and right sides edge part of two housings is respectively provided with two through holes；
The left side Force transmission partses trapezium structure wide in the narrow right side in left side, its left end are welded with three bolts, its left side edge
Portion is provided with two through holes, and its right-hand end is provided with slide rail, can be closely connected using slide rail form with support member；
The right side Force transmission partses trapezium structure wide in the narrow left side in right side, its right edge edge is provided with two through holes, its left-hand end
Portion is provided with slide rail, can be closely connected using slide rail form with support member；
The side of support member is provided with slide block, can closely be connected with the slide rail of left side Force transmission partses or right side Force transmission partses,
Multiple apertures are evenly arranged with support member；
In two side bonds copper electrodes of piezoelectric ceramics block, the connecting portion connecting wire on copper electrode；
Copper electrode is bonded together with support member interval using happy Thailand's E-20HP glue epoxide-resin glue；
Copper electrode also has a connecting portion for connecting wire for stretching out piezoelectric ceramics block part, and piezoelectric ceramics is produced by copper electrode
Raw charge-trapping gets up and derives, and multiple apertures are equally evenly arranged with copper electrode.
2. shearing-type piezoelectric harvester as claimed in claim 1, it is characterised in that：The upper shell of shell, lower house, left side are passed
Power component, right side Force transmission partses and support member are made up of steel.
3. shearing-type piezoelectric harvester as claimed in claim 1, it is characterised in that：Left side Force transmission partses and right side Force transmission partses
Through hole with it is corresponding through hole site on shell.
4. shearing-type piezoelectric harvester as claimed in claim 1, it is characterised in that：Wherein centrally located support member exists
There is the groove for mutually staggering its both sides, and the support member positioned at both sides of the edge position is fluted only on the inside of which.
5. shearing-type piezoelectric harvester as claimed in claim 1, it is characterised in that：With multiple piezoelectric ceramic pieces in layer heap
Gather into folds one piece of piezoelectric ceramics block of replacement.
6. shearing-type piezoelectric harvester as claimed in claim 1, it is characterised in that：Left side Force transmission partses, right side Force transmission partses
Can be equipped with along arbitrarily angled with support member.
7. a kind of manufacture method of shearing-type piezoelectric harvester, including：
The first step, by bolt through the through hole of the lower house, left side Force transmission partses and right side Force transmission partses of shell, passes left side
The lower house of power component, right side Force transmission partses and shell is fixed together, and each support member tightly fits to left side in order respectively
On Force transmission partses and right side Force transmission partses；
Second step, in two side bonds copper electrodes of piezoelectric ceramics block, the connecting portion connecting wire on copper electrode；
Copper electrode is bonded together with support member interval by the 3rd step using happy Thailand's E-20HP glue epoxide-resin glue；
4th step, after glue reaches intensity, the upper shell of shell is covered on left side Force transmission partses and right side Force transmission partses,
Piezoelectric ceramics block part is located in the hollow region that shell is surrounded, then use nut fixing bolt；
5th step, at the bolt of left side Force transmission partses welding is socketed end baffle, is fixed with nut afterwards, power is passed to end first
Portion's baffle plate, then applies a pretension to piezoelectric ceramics.
8. method as claimed in claim 7, it is characterised in that：In the first step, it is ensured that there is propping up for the groove that mutually staggers both sides
Support member is centrally located, and the only reeded support member in inner side is located at both sides.
9. method as claimed in claim 7, it is characterised in that：In second step, further include：
Step 2.1, in advance will be the bonding plane polishing of piezoelectric ceramics block coarse with miniature electric mill, and is repaired with little file, makes piezoelectricity
There is rough shape of stripes in the bonding plane of ceramic block；
Step 2.2, winds several circles with non-stick junction surrounding of the adhesive tape in piezoelectric ceramics block；
Copper electrode and piezoelectric ceramics block are bonded together by step 2.3 with conducting resinl, and unnecessary glue extrusion is cleaned out；
Step 2.4, after pasting, clamps maintenance with flat-nose pliers, removes afterwards within 24 hours；
Step 2.5, will be conducting resinl polishing unnecessary above copper electrode clean with electric mill；
Step 2.6, original hole location on copper electrode are uniformly chosen 4～5, are got into the cave with little electric drill, be easy to copper electrode
It is firm with insulating cement bonding firm, during getting into the cave, piezoelectric ceramics block should not be got into；
Step 2.7, uniformly smears one layer of insulating cement in copper electrode, and solidification is polished smooth for 24 hours afterwards with little electric mill,
In order to ensure insulation effect, the thickness of copper electrode surface glue is about 0.5mm；
Step 2.8, is got into the cave on insulating cement surface with little electric drill, and the place of getting into the cave needs to stagger with the hole of copper electrode itself；Secondly, use
Electric mill grinds rough striped on insulating cement surface, after process is completed, will be the adhesive tape of piezoelectric ceramics block non-stick junction clear
Reason is clean.
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| CN109936308B (en) * | 2019-04-30 | 2020-04-14 | 珠海澳大科技研究院 | Two-dimensional piezoelectric energy recovery device and method |
| CN110299864B (en) * | 2019-05-19 | 2023-06-30 | 北京工业大学 | Piezoelectric-electrostatic composite energy harvester device based on collision |
| CN111641350A (en) * | 2020-05-14 | 2020-09-08 | 西安交通大学 | Flextensional transducer based on shearing piezoelectric mode |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101123404A (en) * | 2007-09-07 | 2008-02-13 | 华南农业大学 | Cymbals driver based on tangential distortion and its driving method |
| CN101656494A (en) * | 2009-09-18 | 2010-02-24 | 哈尔滨工业大学 | High-load piezoelectric generating device |
| CN204167367U (en) * | 2014-11-13 | 2015-02-18 | 中路高科交通科技集团有限公司 | A kind of cymbals formula piezo-electric device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090303839A1 (en) * | 2007-07-31 | 2009-12-10 | Manoj Narayanan | Stress-biased cymbals incorporating a shape memory alloy |
| US8030825B2 (en) * | 2008-09-19 | 2011-10-04 | The United States Of America As Represented By The Secretary Of The Navy | Piezoelectric generator and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101123404A (en) * | 2007-09-07 | 2008-02-13 | 华南农业大学 | Cymbals driver based on tangential distortion and its driving method |
| CN101656494A (en) * | 2009-09-18 | 2010-02-24 | 哈尔滨工业大学 | High-load piezoelectric generating device |
| CN204167367U (en) * | 2014-11-13 | 2015-02-18 | 中路高科交通科技集团有限公司 | A kind of cymbals formula piezo-electric device |
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