CN107464714B - A kind of piezoelectric type lamp switch - Google Patents
A kind of piezoelectric type lamp switch Download PDFInfo
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- CN107464714B CN107464714B CN201710729107.3A CN201710729107A CN107464714B CN 107464714 B CN107464714 B CN 107464714B CN 201710729107 A CN201710729107 A CN 201710729107A CN 107464714 B CN107464714 B CN 107464714B
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- Prior art keywords
- piezoelectric vibrator
- button
- piezoelectric
- boss
- circuit board
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- 239000000758 substrate Substances 0.000 claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 238000003825 pressing Methods 0.000 claims abstract description 6
- 238000005452 bending Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000008901 benefit 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
- 230000010355 oscillation Effects 0.000 description 2
- 230000008569 process 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
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 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 equipped with energy conversion processing circuit and signal transmitting system on the bottom wall of main body；Bottom wall is equipped with boss, and for limited block on boss, the material of limited block is elastic rubber；The side wall ends of main body are equipped with upper cover, and the left side of side wall is equipped with boss；Square guide column is successively cased with reset spring and button on bottom wall from bottom to up in square guide column, the shell of button is equipped with long Stiff Block, and the shell of button is stretched out from the through-hole on upper lid, and the upper surface of long Stiff Block acts against on the lower surface of upper cover；Flexible plectrum and short Stiff Block are sequentially arranged on the lower surface of long Stiff Block from top to bottom；Piezoelectric vibrator is housed, piezoelectric vibrator is the cantilever beam structure as made of substrate and piezoelectric piece bonding, and substrate is installed close to pressing plate, and piezoelectric vibrator is connect through conducting 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 technique
Tradition machinery formula switch, needs manpower to press, easy to operate, price is cheap, but is easy to produce spark, it may occur that short
Road needs often to repair, and inconvenient for operation in the dark, is also often easy to forget to turn off the light, cause power-consuming.So in recent years,
Wireless lamp switch has been increasingly becoming following development trend.It is that wireless lamp switch is removable with the maximum difference of traditional switch
It moves, exempt to be routed.Its moveable feature provide the user more convenient, more comfortable Lighting control scheme；It exempts from the spy of wiring
Point reduces the usage amount of electric wire and pvc pipe during installation, that is, reduces the demand to raw metals such as copper, aluminium, reduces production wire rod
Carbon emission in the process.But wireless lamp switch generally uses battery to power, but battery volume is big, the service life is short, and battery includes
There is heavy metal, if old and useless battery treatment is improper to will cause serious problem of environmental pollution.To replace traditional chemical battery, meet class
The micropowers such as wireless lamp switch, the confession electricity demanding of microminiature electronic product are similar to, domestic and foreign scholars propose in succession and are based on
The microminiature energy capture device of the principles such as electrostatic, electromagnetism, thermoelectricity and piezoelectricity, wherein piezoelectric energy acquirer it is simple with its structure,
No electromagnetic interference, energy density are big, are easily achieved microminiaturization and the advantages such as integrated and keep its scope of application wider.But due to pressure
Electric chip is fragile material, and easily because of institute, 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, critical issue to be solved first is to improve the reliability of its work.
Summary 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 gasket are equipped with circuit board, and circuit board is equipped with energy conversion processing circuit and signal transmitting system；Bottom wall is equipped with convex
Platform, limited block are mounted on boss through screw, and the material of limited block is elastic rubber；The side wall ends of main body are equipped with through screw
The left side of upper cover, side wall is equipped with boss；Square guide column is mounted on bottom wall through screw, is successively cased with from bottom to up in square guide column
Reset spring and button, the shell of button are equipped with long Stiff Block, and the shell of button is stretched out from the through-hole on upper lid, long Stiff Block
Upper surface acts against on the lower surface of upper cover；Flexible plectrum is sequentially installed with through screw from top to bottom on the lower surface of long Stiff Block
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 connect through conducting wire with circuit board.
Under off working state, button is in its own gravity, short Stiff Block and the flexible gravity of plectrum and the work of reset spring
It is in equilibrium state with lower, piezoelectric vibrator keeps straightened condition；When by lower 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, bending deformation
Rigidity is larger, to force piezoelectric vibrator bending deformation, i.e. the deflection of change piezoelectric vibrator and its stress on piezoelectric patches divides
Mechanical energy is converted to electric energy in the change procedure of piezoelectric patches upper stress distribution by cloth state；Button f is further downward
When mobile, flexible plectrum and piezoelectric vibrator are disengaged, and piezoelectric vibrator generates free oscillation and further converts mechanical energy into electric energy；
Piezoelectric vibrator is produced electricl energy through the power conversion circuits treatment and supplied signal transmitting system on circuit board, and signal transmitting system will
Control signal is launched.
When release button, button can reset under the action of reset spring, during push-button reset flexible plectrum end with
The piezoelectric patches contact of piezoelectric vibrator is disengaged with long rigid block edge, and 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 flexibility plectrum and piezoelectric vibrator disengage, and button restores initial equilibrium-like
State；When the deflection of piezoelectric vibrator increases to a certain extent, piezoelectric patches free end be 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.
In the present invention, piezoelectric vibrator installation front and back is oblong flat structure, its free end deflection is permitted when 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 overall 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 material, L are the jib-length of piezoelectric vibrator.
To enable flexible plectrum to disengage before reaching allowable value in piezoelectric vibrator free end deflection, 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 scale 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 realizes that piezoelectric patches will not generate biggish tensile stress, high reliablity while generating effect is preferable.
Advantage and characteristic: meet the confession electricity demanding of lamp switch, strong environmental adaptability；Piezoelectric vibrator itself is without additional
Quality, fundamental frequency are high, it can be ensured that under first-order modal, generating effect is good for work；System generating effect is easy to through the long rigidity of button
The diameter of block diameter and short Stiff Block is adjusted；It is different from rigidity when resetting by the excitation of flexible plectrum, it realizes and is pressed in work
Electric tachometer indicator is subjected only to lesser reversal deformation, and piezoelectric patches receiving tensile stress is smaller, bears compression in its allowable value, therefore reliable
Property it is high.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the structure switched in a preferred embodiment of the present invention；
Fig. 2 is the A-A cross-sectional view of Fig. 1；
Fig. 3 is the cross-sectional view of the structure switched when button is pressed in a preferred embodiment of the present invention；
Fig. 4 is the cross-sectional view of the structure switched when button unclamps in a preferred embodiment of the present invention.
Specific embodiment
Circuit board h is installed through screw and gasket i on the bottom wall a1 of main body a, circuit board h is equipped with energy conversion process electricity
Road and signal transmitting system；Bottom wall a1 is equipped with boss a4, and limited block j is mounted on boss a4 through screw, the material of limited block j
For elastic rubber；The end side wall a2 of main body a is equipped with upper cover b through screw, and the left side of side wall a2 is equipped with boss a3；Square guide column
X is mounted on bottom wall a1 through screw, is successively cased with reset spring m and button f, the shell of button f on square guide column x from bottom to up
F1 is equipped with long Stiff Block f2, and the shell f1 of button f is stretched out from the through-hole on upper cover b, and the upper surface of long Stiff Block f2 acts against
It covers on the lower surface of b；Flexible plectrum g and short Stiff Block are sequentially installed with through screw from top to bottom on the lower surface of long Stiff Block f2
d；Piezoelectric vibrator e is installed through screw and pressing plate c on boss a3, piezoelectric vibrator e is bonded by substrate e1 and piezoelectric patches e2
Cantilever beam structure, substrate e1 installs close to pressing plate c, and piezoelectric vibrator e connect through conducting wire with circuit board h.
Under off working state, button f is in its own gravity, the gravity and reset spring m of short Stiff Block d and flexible plectrum g
Under the action of be in equilibrium state, piezoelectric vibrator e keep straightened condition；When by lower button f, button f drives flexibility plectrum g along side
Shape guide post x is moved down, and the end flexible plectrum g is contacted with piezoelectric vibrator e, and flexible plectrum g is contacted with long Stiff Block f2, therefore cantilever
Part is short, bending deformation rigidity is larger, so that piezoelectric vibrator e be forced to occur bending and deformation, that is, changes the deflection of piezoelectric vibrator e
And its stress distribution on piezoelectric patches e2, mechanical energy is converted in the change procedure of piezoelectric patches e2 upper stress distribution
At electric energy；When button f is moved further downward, flexible plectrum g and piezoelectric vibrator e are disengaged, and piezoelectric vibrator e generates free oscillation
And further convert mechanical energy into electric energy；Piezoelectric vibrator e is produced electricl energy to be supplied after the power conversion circuits processing on circuit board c
To signal transmitting system, signal transmitting system is launched signal is controlled.
When release button f, button f can reset under the action of reset spring m, the flexibility end plectrum g in button f reseting procedure
Portion is contacted with piezoelectric vibrator e makes flexible plectrum g be bent downwardly deformation, and the cantilever part of flexible plectrum g is long at this time, rigidity is low, soft
Property plectrum g and piezoelectric vibrator e to occur large curved deformation, the deflection of piezoelectric vibrator e when contacting small or without deformation, it is final flexible
Plectrum g and piezoelectric vibrator e is disengaged, and button f restores initial equilibrium state；When the deflection of piezoelectric vibrator e increases to certain journey
When spending, the free end piezoelectric patches e2 be will press against on limited block j, and piezoelectric vibrator e free end deflection is less than its allowable value, thus really
The maximum crushing stress protected on piezoelectric patches e2 is less than its allowable value.
In the present invention, piezoelectric vibrator e installation front and back is oblong flat structure, its free end deflection is permitted when 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 overall thickness, EmAnd EpThe Young's modulus of respectively substrate e1 and piezoelectric patches e2 material,
k31WithThe respectively electromechanical coupling factor and permissible compression stress of piezoelectric material, L are piezoelectric vibrator e jib-length.
To enable flexible plectrum g to disengage before reaching allowable value in the free end piezoelectric vibrator e deflection, flexible plectrum g's
Extension l should meetWherein: ω=FL3/ (3EI),E and EbRespectively piezoelectric vibrator e and soft
The Young's modulus of property plectrum g, I and IbThe moment of inertia of respectively piezoelectric vibrator e and flexible plectrum g, d are piezoelectric vibrator e and flexibility
Plectrum g length of overlapped part.
In the present invention, the deformation characteristic of piezoelectric vibrator e is determined by flexible plectrum g and the rigidity of piezoelectric vibrator e contact portion；
When the structure and scale of piezoelectric vibrator e and flexible plectrum g determine, the size of short Stiff Block d and long Stiff Block f2 can be passed through
Size is adjusted, and realizes that piezoelectric patches e2 will not generate biggish tensile stress, high reliablity while generating effect is preferable.
Claims (1)
1. a kind of piezoelectric type lamp switch, it is characterised in that: circuit board is housed, circuit board turns equipped with energy on the bottom wall of main body
Change processing circuit and signal transmitting system；Bottom wall is equipped with boss, and for limited block on boss, the material of limited block is elastic rubber
Glue；The side wall ends of main body are equipped with upper cover, and the left side of side wall is equipped with boss；Square guide column on the bottom wall, in square guide column from
Under it is supreme be successively cased with reset spring and button, the shell of button is equipped with long Stiff Block, and the shell of button is from the through-hole on upper lid
It stretches out, the upper surface of long Stiff Block acts against on the lower surface of upper cover；On the lower surface of long Stiff Block from top to bottom through screw according to
The flexible plectrum of secondary installation and short Stiff Block；On boss be equipped with piezoelectric vibrator, piezoelectric vibrator be by substrate and piezoelectric piece bonding and
At cantilever beam structure, substrate close to pressing plate install；It is connect by flexibility plectrum end when lower button and substrate and long rigid block edge
Touching, flexible plectrum cantilever part is short, rigidity is larger, and piezoelectric vibrator occurs bending and deformation, and flexible plectrum is in piezoelectric vibrator free end
Deflection disengages before reaching allowable value；When push-button reset, flexible plectrum end contacts with piezoelectric patches, is de- with long rigid block edge
It opens, 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；Piezoelectric vibrator warp
Conducting wire is connect with circuit board；Piezoelectric vibrator is produced electricl energy through the power conversion circuits treatment and supplied signal transmitting system on circuit board
System, signal transmitting system are launched signal is controlled.
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 CN107464714A (en) | 2017-12-12 |
| CN107464714B true CN107464714B (en) | 2019-01-11 |
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| 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 |
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| Country | Link |
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| CN (1) | CN107464714B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2022108608A (en) * | 2021-01-13 | 2022-07-26 | 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 |
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| Publication number | Publication date |
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| CN107464714A (en) | 2017-12-12 |
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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 |