CN107464714A - A kind of piezoelectric type lamp switch - Google Patents
A kind of piezoelectric type lamp switch Download PDFInfo
- Publication number
- CN107464714A CN107464714A CN201710729107.3A CN201710729107A CN107464714A CN 107464714 A CN107464714 A CN 107464714A CN 201710729107 A CN201710729107 A CN 201710729107A CN 107464714 A CN107464714 A CN 107464714A
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- Prior art keywords
- piezoelectric vibrator
- piezoelectric
- button
- boss
- block
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- 239000000758 substrate Substances 0.000 claims abstract description 14
- 238000003825 pressing Methods 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 6
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229920001195 polyisoprene Polymers 0.000 claims abstract description 4
- 230000008569 process Effects 0.000 claims abstract description 3
- 230000000694 effects Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002520 smart material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
- H01H13/02—Details
- H01H13/26—Snap-action arrangements depending upon deformation of elastic members
- H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2235/00—Springs
- H01H2235/028—Blade spring
Landscapes
- Push-Button Switches (AREA)
Abstract
The present invention relates to a kind of piezoelectric type lamp switch, belong to daily technical field of electronic products.Circuit board is housed, circuit board is provided with energy conversion process circuit and signal transmitting system on the bottom wall of main body；Bottom wall is provided with boss, and for limited block on boss, the material of limited block is elastic caoutchouc；The side wall ends of main body are equipped with upper lid, and the left side of side wall is provided with boss；Square guide column is cased with back-moving spring and button successively from bottom to up on bottom wall in square guide column, the housing of button is provided with long Stiff Block, and the housing of button is stretched out from the through hole on upper lid, and the upper surface of long Stiff Block is acted against on the lower surface of lid；Flexible plectrum and short Stiff Block are sequentially arranged with the lower surface of long Stiff Block from top to bottom；Piezoelectric vibrator is housed, piezoelectric vibrator is the cantilever beam structure formed by substrate and piezoelectric piece bonding, and substrate is installed close to pressing plate, and piezoelectric vibrator is connected through wire with circuit board on boss.
Description
Technical field
The invention belongs to daily technical field of electronic products, and in particular to a kind of piezoelectric type lamp switch.
Background technology
Tradition machinery formula is switched, it is necessary to which human hand is pressed, and simple to operate, price is cheap, but easily produces spark, it may occur that short
Road is and inconvenient for operation in the dark, it is necessary to often repair, and also often easily forgets to turn off the light, causes power-consuming.So in recent years,
Wireless lamp switch has been increasingly becoming the development trend in future.Maximum difference is that wireless lamp switch is removable with traditional switch
Move, exempt to connect up.Its moveable feature, it provide the user more convenient, more comfortable Lighting control scheme；It exempts from the spy of wiring
Point, the usage amount of electric wire and pvc pipe is reduced when mounted, that is, reduce the demand to raw metals such as copper, aluminium, reduce production wire rod
During carbon emission.But wireless lamp switch typically uses battery powered, but battery volume is big, short life, and battery includes
There is heavy metal, if old and useless battery treatment is improper to cause serious problem of environmental pollution.To replace traditional chemical battery, meet class
The micropowers such as wireless lamp switch, the self-powered demand of microminiature electronic product are similar to, domestic and foreign scholars are proposed and are based in succession
The microminiature energy capture device of the principles such as electrostatic, electromagnetism, thermoelectricity and piezoelectricity, wherein piezoelectric energy grabber with its is simple in construction,
Without electromagnetic interference, energy density is big, be easily achieved microminiaturization and the advantage such as integrated and make its scope of application wider.But due to pressure
Electric chip is fragile material, easily because institute's tension stress is excessive and broken.Therefore, for make piezoelectric type power supply device wireless doorbell believe
Practical application is obtained in number transmission system, the key issue for needing to solve first is to improve the reliability of its work.
The content of the invention
The present invention proposes a kind of piezoelectric type lamp switch, and the embodiment that the present invention uses is：Through spiral shell on the bottom wall of main body
Nail and pad are provided with circuit board, and circuit board is provided with energy conversion process circuit and signal transmitting system；Bottom wall is provided with convex
Platform, limited block are arranged on boss through screw, and the material of limited block is elastic caoutchouc；The side wall ends of main body are provided with through screw
Upper lid, the left side of side wall are provided with boss；Square guide column is arranged on bottom wall through screw, is cased with successively from bottom to up in square guide column
Back-moving spring and button, the housing of button are provided with long Stiff Block, and the housing of button stretches out from the through hole on upper lid, long Stiff Block
Upper surface is acted against on the lower surface of lid；Flexible plectrum is sequentially installed with the lower surface of long Stiff Block through screw from top to bottom
With short Stiff Block；Piezoelectric vibrator is installed through screw and pressing plate on boss, piezoelectric vibrator is formed by substrate and piezoelectric piece bonding
Cantilever beam structure, substrate installs close to pressing plate, and piezoelectric vibrator is connected through wire with circuit board.
Under off working state, work of the button in its own gravity, the gravity of short Stiff Block and flexible plectrum and back-moving spring
Poised state is in lower, piezoelectric vibrator keeps straightened condition；When pressing button, button drive flexible plectrum along square guide column to
Lower movement, the EDGE CONTACT of the substrate and long Stiff Block of flexible plectrum end and piezoelectric vibrator, therefore cantilever part is short, flexural deformation
Rigidity is larger, so as to force piezoelectric vibrator flexural deformation, that is, changes the stress point on the deflection and its piezoelectric patches of piezoelectric vibrator
Cloth state, mechanical energy is converted to electric energy in the change procedure of piezoelectric patches upper stress distribution；Button f is further downward
When mobile, flexible plectrum disengages with piezoelectric vibrator, and piezoelectric vibrator produces free oscillation and further converts mechanical energy into electric energy；
Piezoelectric vibrator produces electric energy will through the power conversion circuits treatment and supplied signal transmitting system on circuit board, signal transmitting system
Control signal is launched.
During release button, button can reset in the presence of back-moving spring, during push-button reset flexible plectrum end with
The piezoelectric patches contact of piezoelectric vibrator, disengaging with long rigid block edge, the cantilever part of flexible plectrum is long, rigidity is low, deflection is big,
And the deflection of piezoelectric vibrator is small or without deformation, final flexible plectrum disengages with piezoelectric vibrator, and button recovers initial equilibrium-like
State；When the deflection of piezoelectric vibrator increases to a certain extent, piezoelectric patches free end will press against on limited block, and piezoelectric vibrator is certainly
Its allowable value is less than by end deflection, so that it is guaranteed that the maximum crushing stress on piezoelectric patches is less than its allowable value.
It is oblong flat structure before and after piezoelectric vibrator installation in the present invention, its free end deflection is permitted during work
It is with valueWherein：B=1- α+α β, A=α4
(1-β)2-4α3(1-β)+6α2(1- β) -4 α (1- β)+1,α=hm/ H, β=Em/Ep,
hmFor the thickness of substrate, H is piezoelectric vibrator gross thickness, EmAnd EpThe respectively Young's modulus of substrate and piezoelectric smart material, k31With
The respectively electromechanical coupling factor and permissible compression stress of piezoelectric, L are the jib-length of piezoelectric vibrator.
To enable flexible plectrum to be disengaged in piezoelectric vibrator free end deflection before allowable value is reached, flexible plectrum it is overhanging
Length l should meetWherein：ω=FL3/ (3EI),E and EbRespectively piezoelectric vibrator and flexibility
The Young's modulus of plectrum, I and IbThe respectively the moment of inertia of piezoelectric vibrator and flexible plectrum, d are piezoelectric vibrator and flexible plectrum weight
Folded partial-length.
In the present invention, the deformation characteristic of piezoelectric vibrator is determined by flexible plectrum and the rigidity of piezoelectric vibrator contact portion；
When the structure and yardstick of piezoelectric vibrator and flexible plectrum determine, it can be subject to by the size of short Stiff Block and the size of long Stiff Block
Adjustment, realize that piezoelectric patches will not produce larger tension while generating effect is preferable, reliability is high.
Advantage and characteristic：Meet the self-powered demand of lamp switch, strong environmental adaptability；Piezoelectric vibrator itself is without additional
Quality, fundamental frequency are high, it can be ensured that are operated under first-order modal, generating effect is good；System generating effect is easy to grow rigidity by button
The diameter of block diameter and short Stiff Block is adjusted；Rigidity is different during by the excitation of flexible plectrum from resetting, and realizes in work and presses
Electric tachometer indicator is subjected only to less reversal deformation, and it is smaller that piezoelectric patches bears tension, bears compression in its allowable value, therefore reliably
Property it is high.
Brief description of the drawings
Fig. 1 is the section of structure switched in a preferred embodiment of the present invention；
Fig. 2 is Fig. 1 A-A sectional views；
Fig. 3 is the section of structure switched when button is pressed in a preferred embodiment of the present invention；
Fig. 4 is the section of structure switched when button unclamps in a preferred embodiment of the present invention.
Embodiment
Circuit board h is installed through screw and pad i on main body a bottom wall a1, circuit board h is provided with energy conversion processing electricity
Road and signal transmitting system；Bottom wall a1 is provided with boss a4, and limited block j is arranged on boss a4 through screw, limited block j material
For elastic caoutchouc；Main body a side wall a2 ends are provided with upper lid b through screw, and side wall a2 left side is provided with boss a3；Square guide column
X is arranged on bottom wall a1 through screw, is cased with back-moving spring m and button f, button f housing on square guide column x successively from bottom to up
F1 is provided with long Stiff Block f2, and button f housing f1 stretches out from the through hole on upper lid b, and long Stiff Block f2 upper surface acts against
Cover on b lower surface；Flexible plectrum g and short Stiff Block are sequentially installed with long Stiff Block f2 lower surface through screw from top to bottom
d；Piezoelectric vibrator e is installed through screw and pressing plate c on boss a3, piezoelectric vibrator e is formed by substrate e1 and piezoelectric patches e2 bondings
Cantilever beam structure, substrate e1 installs close to pressing plate c, and piezoelectric vibrator e is connected through wire with circuit board h.
Under off working state, gravity and back-moving spring m of the button f in its own gravity, short Stiff Block d and flexible plectrum g
In the presence of be in poised state, piezoelectric vibrator e keeps straightened condition；When pressing button f, button f drives flexible plectrum g along side
Shape guide pillar x is moved down, and flexible plectrum g ends contact with piezoelectric vibrator e, and flexible plectrum g contacts with long Stiff Block f2, therefore cantilever
Part is short, flexural deformation rigidity is larger, so as to force piezoelectric vibrator e to occur bending and deformation, that is, changes piezoelectric vibrator e deflection
And its stress distribution on piezoelectric patches e2, mechanical energy is changed in the change procedure of piezoelectric patches e2 upper stress distributions
Into electric energy；When button f is moved further downward, flexible plectrum g and piezoelectric vibrator e is disengaged, and piezoelectric vibrator e produces free oscillation
And further convert mechanical energy into electric energy；Piezoelectric vibrator e produces electric energy and supplied after the power conversion circuits processing on circuit board c
To signal transmitting system, signal transmitting system launches control signal.
During release button f, button f can reset in the presence of back-moving spring m, flexible plectrum g ends in button f reseting procedures
Portion contacts with piezoelectric vibrator e makes flexible plectrum g be bent downwardly deformation, and now flexible plectrum g cantilever part is long, rigidity is low, soft
Property plectrum g to occur large curved deformation, piezoelectric vibrator e deflection when being contacted with piezoelectric vibrator e small or without deformation, it is final flexible
Plectrum g and piezoelectric vibrator e is disengaged, and button f recovers initial poised state；When piezoelectric vibrator e deflection increases to certain journey
When spending, piezoelectric patches e2 free ends will press against on limited block j, and piezoelectric vibrator e free ends deflection is less than its allowable value, so as to really
The maximum crushing stress protected on piezoelectric patches e2 is less than its allowable value.
It is oblong flat structure before and after piezoelectric vibrator e installations in the present invention, its free end deflection is permitted during work
It is with valueWherein：B=1- α+α β, A=α4
(1-β)2-4α3(1-β)+6α2(1- β) -4 α (1- β)+1,α=hm/ H, β=Em/Ep,
hmFor substrate e1 thickness, H is piezoelectric vibrator e gross thickness, EmAnd EpRespectively substrate e1 and piezoelectric patches e2 materials Young's modulus,
k31WithThe respectively electromechanical coupling factor and permissible compression stress of piezoelectric, L are piezoelectric vibrator e jib-lengths.
To enable flexible plectrum g to be disengaged in piezoelectric vibrator e free ends deflection before allowable value is reached, flexible plectrum g's
Extension l should meetWherein：ω=FL3/ (3EI),E and EbRespectively piezoelectric vibrator e and soft
Property plectrum g Young's modulus, I and IbRespectively piezoelectric vibrator e and flexible plectrum g the moment of inertia, d are piezoelectric vibrator e and flexibility
Plectrum g length of overlapped part.
In the present invention, piezoelectric vibrator e deformation characteristic is determined by flexible plectrum g and the rigidity of piezoelectric vibrator e contact portions；
When piezoelectric vibrator e and flexible plectrum g structure and yardstick determine, short Stiff Block d size and long Stiff Block f2 can be passed through
Size is adjusted, and realizes that piezoelectric patches e2 will not produce larger tension while generating effect is preferable, reliability is high.
Claims (1)
- A kind of 1. piezoelectric type lamp switch, it is characterised in that：A kind of piezoelectric type lamp switch, it is characterised in that：The bottom wall of main body Upper that circuit board is housed, circuit board is provided with energy conversion process circuit and signal transmitting system；Bottom wall is provided with boss, limited block On boss, the material of limited block is elastic caoutchouc；The side wall ends of main body are equipped with upper lid, and the left side of side wall is provided with boss； Square guide column is cased with back-moving spring and button successively from bottom to up on bottom wall in square guide column, the housing of button is provided with length Stiff Block, the housing of button are stretched out from the through hole on upper lid, and the upper surface of long Stiff Block is acted against on the lower surface of lid；It is long firm Flexible plectrum and short Stiff Block are sequentially installed with the lower surface of property block through screw from top to bottom；Piezoelectric vibrator is housed on boss, Piezoelectric vibrator is the cantilever beam structure formed by substrate and piezoelectric piece bonding, and substrate is installed close to pressing plate；Press flexible during button Plectrum end and substrate and long Stiff Block EDGE CONTACT, flexible plectrum cantilever part is short, rigidity is larger, and piezoelectric vibrator bends Deformation, flexible plectrum disengage in piezoelectric vibrator free end deflection before allowable value is reached；During push-button reset, flexible plectrum end Contact with piezoelectric patches, disengaged with long rigid block edge, the cantilever part of flexible plectrum is long, the low deflection of rigidity is big, piezoelectric vibrator Deflection it is small or without deformation；Piezoelectric vibrator is connected through wire with circuit board；Piezoelectric vibrator produces electric energy through the energy on circuit board Change-over circuit treatment and supplied signal transmitting system is measured, signal transmitting system launches control signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710729107.3A CN107464714B (en) | 2017-08-17 | 2017-08-17 | A kind of piezoelectric type lamp switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710729107.3A CN107464714B (en) | 2017-08-17 | 2017-08-17 | A kind of piezoelectric type lamp switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107464714A true CN107464714A (en) | 2017-12-12 |
| CN107464714B CN107464714B (en) | 2019-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710729107.3A Active CN107464714B (en) | 2017-08-17 | 2017-08-17 | A kind of piezoelectric type lamp switch |
Country Status (1)
| Country | Link |
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| CN (1) | CN107464714B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022153905A1 (en) * | 2021-01-13 | 2022-07-21 | パナソニックＩｐマネジメント株式会社 | Power generation device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1541423A (en) * | 2001-07-03 | 2004-10-27 | �����²��R������ | Self-powered switch initiation system |
| JP3616386B2 (en) * | 2002-12-17 | 2005-02-02 | 太平洋セメント株式会社 | Signal transmitter |
| CN101425763A (en) * | 2008-12-11 | 2009-05-06 | 吉林大学深圳研究院 | Piezo-electric non-battery remote controller |
| CN201252497Y (en) * | 2008-09-12 | 2009-06-03 | 吉林大学 | Piezoelectric self-powered low power consumption remote controller |
| CN101866768A (en) * | 2010-04-30 | 2010-10-20 | 浙江师范大学 | Environment-friendly remote switch for lamps |
| CN202585207U (en) * | 2012-05-23 | 2012-12-05 | 浙江师范大学 | Lamp remote control switch |
-
2017
- 2017-08-17 CN CN201710729107.3A patent/CN107464714B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1541423A (en) * | 2001-07-03 | 2004-10-27 | �����²��R������ | Self-powered switch initiation system |
| JP3616386B2 (en) * | 2002-12-17 | 2005-02-02 | 太平洋セメント株式会社 | Signal transmitter |
| CN201252497Y (en) * | 2008-09-12 | 2009-06-03 | 吉林大学 | Piezoelectric self-powered low power consumption remote controller |
| CN101425763A (en) * | 2008-12-11 | 2009-05-06 | 吉林大学深圳研究院 | Piezo-electric non-battery remote controller |
| CN101866768A (en) * | 2010-04-30 | 2010-10-20 | 浙江师范大学 | Environment-friendly remote switch for lamps |
| CN202585207U (en) * | 2012-05-23 | 2012-12-05 | 浙江师范大学 | Lamp remote control switch |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022153905A1 (en) * | 2021-01-13 | 2022-07-21 | パナソニックＩｐマネジメント株式会社 | Power generation device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107464714B (en) | 2019-01-11 |
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Effective date of registration: 20231212 Address after: 230000 Room 203, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee after: Hefei Jiuzhou Longteng scientific and technological achievement transformation Co.,Ltd. Address before: 321004 Zhejiang Normal University, 688 Yingbin Avenue, Wucheng District, Jinhua City, Zhejiang Province Patentee before: ZHEJIANG NORMAL University |
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Effective date of registration: 20240501 Address after: 519000 Area C, 4th Floor, Phase II Factory Building, No. 7 Pingxi 1st Road, Nanping Science and Technology Industrial Park, Xiangzhou District, Zhuhai City, Guangdong Province Patentee after: Guangdong Hengwangli Intelligent Technology Co.,Ltd. Country or region after: China Address before: 230000 Room 203, building 2, phase I, e-commerce Park, Jinggang Road, Shushan Economic Development Zone, Hefei City, Anhui Province Patentee before: Hefei Jiuzhou Longteng scientific and technological achievement transformation Co.,Ltd. Country or region before: China |