CN102221897A - Piezoelectric energy-storage keyboard - Google Patents
Piezoelectric energy-storage keyboard Download PDFInfo
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- CN102221897A CN102221897A CN2011101988522A CN201110198852A CN102221897A CN 102221897 A CN102221897 A CN 102221897A CN 2011101988522 A CN2011101988522 A CN 2011101988522A CN 201110198852 A CN201110198852 A CN 201110198852A CN 102221897 A CN102221897 A CN 102221897A
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- energy storage
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Abstract
The invention relates to a keyboard and provides a piezoelectric energy-storage keyboard which not only has a signal transmission function, but also has an energy storage function. The keyboard is provided with keyboard keys, a piezoelectric plate, a positioning and induction circuit of the keyboard and an energy-storage circuit; the piezoelectric plate is provided with a function key piezoelectric plate, a letter key piezoelectric plate, a direction key piezoelectric plate, a keypad piezoelectric plate, a power supply positive electrode and a power supply negative electrode, and is also provided with a positive electrode membrane electrode, piezoelectric material layers and a negative electrode membrane electrode in sequence from top to bottom; the positioning and induction circuit of the keyboard is provided with a positive electrode and a negative electrode; and all the piezoelectric material layers are connected with the energy-storage circuit in parallel. The piezoelectric energy-storage keyboard is especially suitable for the keyboards of various portable electronic devices, and is suitable for a plurality of keyboards on electronic devices, such as keyboards of laptop computers, keyboards of mobile phones, keyboards of game consoles.
Description
Technical field
The present invention relates to a kind of keyboard, especially relate to a kind of piezoelectricity energy storage keyboard.
Background technology
At present, energy problem is increasingly serious, how to effectively utilize the energy, improves the energy utilization efficiency with energy equipment or technology, is more and more paid close attention to by people.Piezoelectric has significant direct piezo electric effect (R.E.Newnham.Properties of Materials:Anisotropy, Symmetry, Structure.London:Oxford University Press, 2004).When people used keyboard, finger tapping or push keyboard and can produce frequent dynamic force can be collected the energy that produces when people knock keyboard and store utilization by the applying piezoelectric material.The piezo-electric generating and the energy storage device that adopt piezoelectric to make in conjunction with filtering energy storage circuit module, have simple in structure, volume is little, pollution-free, advantages such as cost is low, Miniaturizable.
Summary of the invention
The object of the present invention is to provide a kind ofly not only to have signal transfer functions, and have the piezoelectricity energy storage keyboard of storage power function.
The present invention is provided with location and the sensor circuit and the energy storage circuit of keyboard, piezoelectric board, keyboard self from top to bottom successively; Described keyboard is provided with function button, alphabet key, direction button and keypad, be provided with function button piezoelectric board, alphabet key piezoelectric board, direction button piezoelectric board, keypad piezoelectric board, positive source and power cathode on piezoelectric board, the position of described function button piezoelectric board, alphabet key piezoelectric board, direction button piezoelectric board, keypad piezoelectric board is corresponding with the position of function button, alphabet key, direction button and keypad on being located at described keyboard;
All piezoelectric boards are provided with anode thin film electrode, piezoelectric material layer and negative film electrode from top to bottom successively, be respectively equipped with positive source and power cathode on function button piezoelectric board, alphabet key piezoelectric board, direction button piezoelectric board and keypad piezoelectric board, described positive source is connected with the keypad piezoelectric board with function button piezoelectric board, alphabet key piezoelectric board, direction button piezoelectric board respectively with power cathode;
The location of described keyboard self and sensor circuit are provided with the location of keyboard self and positive pole and the location of keyboard self and the negative pole of sensor circuit of sensor circuit;
All piezoelectric material layers are connected with energy storage circuit by parallel way.
Described piezoelectric material layer can adopt patch of piezoelectric material, piezoelectric membrane or piezoelectric fabric layer etc.
Described energy storage circuit can be provided with patch of piezoelectric material, full-bridge rectification heap, capacitor, energy-storage battery, resistor and load, patch of piezoelectric material is connected with the full-bridge rectification heap, capacitor is connected with the full-bridge rectification heap, energy-storage battery is in parallel with capacitor, resistor is connected with load, and the series circuit two ends of resistor and load are in parallel with energy-storage battery respectively.
Described piezoelectric material layer can adopt multiple piezoelectric system, as piezoelectric ceramics, piezoelectric high polymer or compound substance, described compound substance can be selected from least a in lead zirconate titanate (PZT), barium titanate (BT), potassium-sodium niobate (KNN), bismuth-sodium titanate (BNT), odd nylons, PVDF (Kynoar), piezoelectric ceramics, the piezoelectric high polymer etc.; The thickness of described piezoelectric material layer can be 10～2000 μ m.
The present invention makes earlier patch of piezoelectric material, piezoelectric membrane or the piezoelectric fabric that matches with the keyboard keyboard respectively; With organism it is coated again and improve its pliability, to coat good patch of piezoelectric material, piezoelectric membrane or piezoelectric fabric then and place the keyboard below, and make it corresponding with the stress area below this keyboard, the electrode of patch of piezoelectric material after coating or piezoelectric fabric is inserted energy storage circuit, make electrical power storage in discharging and recharging in the energy-storage battery.
According to a kind of green energy conservation type piezoelectricity energy storage keyboard provided by the invention, be specially adapted to the keyboard on the various portable electric appts, keyboard comprises some keyboards, circuit film of keyboard itself and is the spring caps glue that activity up and down cooperates with described keyboard, and place patch of piezoelectric material, piezoelectric membrane or piezoelectric fabric behind compound under the keyboard, also comprise the membrane electrode and the energy storage circuit that are connected with patch of piezoelectric material, piezoelectric membrane or piezoelectric fabric.Patch of piezoelectric material under the keyboard, piezoelectric membrane or piezoelectric fabric match with keyboard, when pressing keyboard, owing to the stressed electric signal that produces of piezoelectric, piezoelectric membrane or piezoelectric fabric, after the access energy storage circuit electrical power storage are got up.
According to a kind of green energy conservation type piezoelectricity energy storage keyboard provided by the invention, described patch of piezoelectric material, piezoelectric membrane or piezoelectric fabric can carry out organism and coat, and improve its pliability.By the patch of piezoelectric material after compound, piezoelectric membrane or piezoelectric fabric and up and down the piezoelectric board that constitutes of double-layer films electrode is corresponding with the stressed position of this keyboard.This kind green energy conservation type piezoelectricity energy storage keyboard adopts corresponding energy storage filtering circuit to match with it.
Outstanding advantage of the present invention is to have realized finger tapping or push the function that the frequent dynamic force that produces of keyboard is converted into electric energy, and electrical power storage is got up to provide electronic equipment to use.Make keyboard not only have the function of signal transmission like this, and have the function of storage power.
Description of drawings
Fig. 1 is that the structure of the embodiment of the invention is formed synoptic diagram.
Fig. 2 is that the structure of the piezoelectric board of the embodiment of the invention is formed synoptic diagram.
Fig. 3 is that the structure of the single keyboard of the embodiment of the invention is formed synoptic diagram.
Fig. 4 is the theory of constitution figure of the energy storage circuit of the embodiment of the invention.
Embodiment
Following examples will the present invention is further illustrated in conjunction with the accompanying drawings.
Referring to Fig. 1～3, the embodiment of the invention is provided with location and the sensor circuit 3 and the energy storage circuit of keyboard 1, piezoelectric board 2, keyboard self from top to bottom successively; Described keyboard 1 is provided with function button, alphabet key, direction button and keypad, be provided with function button piezoelectric board 21, alphabet key piezoelectric board 22, direction button piezoelectric board 23, keypad piezoelectric board 24, positive source 25 and power cathode 26 on piezoelectric board 2, the position of described function button piezoelectric board 21, alphabet key piezoelectric board 22, direction button piezoelectric board 23, keypad piezoelectric board 24 is corresponding with the position of function button, alphabet key, direction button and keypad on being located at described keyboard 1.
All piezoelectric boards are provided with anode thin film electrode 27, piezoelectric material layer 29 and negative film electrode 28 from top to bottom successively, be respectively equipped with positive source 25 and power cathode 26 on function button piezoelectric board 21, alphabet key piezoelectric board 22, direction button piezoelectric board 23 and keypad piezoelectric board 24, described positive source 25 is connected with keypad piezoelectric board 24 with function button piezoelectric board 21, alphabet key piezoelectric board 22, direction button piezoelectric board 23 respectively with power cathode 26.
The location of described keyboard self and sensor circuit 3 are provided with the location of keyboard self and positive pole 31 and the location of keyboard self and the negative pole 32 of sensor circuit of sensor circuit.
All piezoelectric material layers 29 are connected with energy storage circuit by parallel way.
Described piezoelectric material layer 29 can adopt patch of piezoelectric material, piezoelectric membrane or piezoelectric fabric layer etc.
Referring to Fig. 4, described energy storage circuit can be provided with patch of piezoelectric material 41, full-bridge rectification heap 42, capacitor 43, energy-storage battery 44, resistor 45 and load 46, patch of piezoelectric material 41 is connected with full-bridge rectification heap 42, capacitor 43 is connected with full-bridge rectification heap 42, energy-storage battery 44 is in parallel with capacitor 43, resistor 45 is connected with load 46, and the series circuit two ends of resistor 45 and load 46 are in parallel with energy-storage battery 44 respectively.
Patch of piezoelectric material under the keyboard is the lead lanthanum zirconate titanate (PLZT) electrooptical ceramics material sheet, and its thickness is 450 μ m.Use epoxy resin that it is compound, placing between the double-layer films electrode, as shown in Figure 2,, place under the keyboard its array mode according to Fig. 3.Again that patch of piezoelectric material, piezoelectric membrane or piezoelectric fabric is corresponding with the circuit contact under this keyboard.Then the patch of piezoelectric material under all keyboards is inserted energy storage circuit (referring to Fig. 4) according to parallel way, wherein the full-bridge rectification heap is DB107, and electric capacity is 0.47 μ F, and resistance is 8.7 Ω, and the energy-storage battery model is LiR2450.The power of Huo Deing is about 0.1W with this understanding, push 10 times after energy-storage battery obtain voltage 1V, storage power 0.1J reaches certain energy storage effect.
Be similar to embodiment 1, different is to use the barium titanate patch of piezoelectric material, and final power is 0.06W, push 10 times after energy-storage battery obtain voltage 0.6V, storage power 0.06J reaches certain energy storage effect.
With embodiment 1, the thickness of patch of piezoelectric material that different is is 800 μ m, and final power is 0.12W, push 10 times after energy-storage battery obtain voltage 1.2V, storage power 0.12J reaches certain energy storage effect.
Embodiment 4:
With embodiment 1, different is that resistance is 10 Ω in the circuit, and electric capacity is 1 μ F, and final power is 0.18W, push 10 times after energy-storage battery obtain voltage 1.8V, storage power 0.18J reaches certain energy storage effect.
Embodiment 5:
With embodiment 1, different is to use PVDF (Kynoar) patch of piezoelectric material, and final power is 0.03W, push 10 times after energy-storage battery obtain voltage 0.3V, storage power 0.03J reaches certain energy storage effect.
Embodiment 6:
With embodiment 1, different is to use odd nylons-5 patch of piezoelectric material, and final power is 0.04W, push 10 times after energy-storage battery obtain voltage 0.4V, storage power 0.04J reaches certain energy storage effect.
Embodiment 7:
With embodiment 1, different is to use odd nylons-9 patch of piezoelectric material, and final power is 0.02W, push 10 times after energy-storage battery obtain voltage 0.2V, storage power 0.02J reaches certain energy storage effect.
Embodiment 8:
With embodiment 1, different is to use lead titanate piezoelectric ceramics sheet and odd nylons-9 composite piezoelectric material sheet, and final power is 0.08W, push 10 times after energy-storage battery obtain voltage 0.8V, storage power 0.08J reaches certain energy storage effect.
Embodiment 9:
With embodiment 1, different is to use barium titanate patch of piezoelectric material and PVDF (Kynoar) composite piezoelectric material sheet, and final power is 0.06W, push 10 times after energy-storage battery obtain voltage 0.6V, storage power 0.06J reaches certain energy storage effect.
Claims (7)
1. piezoelectricity energy storage keyboard is characterized in that being provided with successively from top to bottom location and the sensor circuit and the energy storage circuit of keyboard, piezoelectric board, keyboard self; Described keyboard is provided with function button, alphabet key, direction button and keypad, be provided with function button piezoelectric board, alphabet key piezoelectric board, direction button piezoelectric board, keypad piezoelectric board, positive source and power cathode on piezoelectric board, the position of described function button piezoelectric board, alphabet key piezoelectric board, direction button piezoelectric board, keypad piezoelectric board is corresponding with the position of function button, alphabet key, direction button and keypad on being located at described keyboard;
All piezoelectric boards are provided with anode thin film electrode, piezoelectric material layer and negative film electrode from top to bottom successively, be respectively equipped with positive source and power cathode on function button piezoelectric board, alphabet key piezoelectric board, direction button piezoelectric board and keypad piezoelectric board, described positive source is connected with the keypad piezoelectric board with function button piezoelectric board, alphabet key piezoelectric board, direction button piezoelectric board respectively with power cathode;
The location of described keyboard self and sensor circuit are provided with the location of keyboard self and positive pole and the location of keyboard self and the negative pole of sensor circuit of sensor circuit;
All piezoelectric material layers are connected with energy storage circuit by parallel way.
2. a kind of piezoelectricity energy storage keyboard as claimed in claim 1 is characterized in that described piezoelectric material layer adopts patch of piezoelectric material, piezoelectric membrane or piezoelectric fabric layer.
3. a kind of piezoelectricity energy storage keyboard as claimed in claim 1, it is characterized in that described energy storage circuit is provided with patch of piezoelectric material, full-bridge rectification heap, capacitor, energy-storage battery, resistor and load, patch of piezoelectric material is connected with the full-bridge rectification heap, capacitor is connected with the full-bridge rectification heap, energy-storage battery is in parallel with capacitor, resistor is connected with load, and the series circuit two ends of resistor and load are in parallel with energy-storage battery respectively.
4. a kind of piezoelectricity energy storage keyboard as claimed in claim 1 is characterized in that described piezoelectric material layer adopts multiple piezoelectric system.
5. a kind of piezoelectricity energy storage keyboard as claimed in claim 4 is characterized in that described multiple piezoelectric system is optional from piezoelectric ceramics, piezoelectric high polymer or compound substance.
6. a kind of piezoelectricity energy storage keyboard as claimed in claim 5 is characterized in that at least a in described compound substance selected among zirconium lead titanates, barium titanate, potassium-sodium niobate, bismuth-sodium titanate, odd nylons, Kynoar, piezoelectric ceramics, the piezoelectric high polymer.
7. a kind of piezoelectricity energy storage keyboard as claimed in claim 1, the thickness that it is characterized in that described piezoelectric material layer is 10～2000 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2011101988522A CN102221897A (en) | 2011-07-15 | 2011-07-15 | Piezoelectric energy-storage keyboard |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101988522A CN102221897A (en) | 2011-07-15 | 2011-07-15 | Piezoelectric energy-storage keyboard |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102402336A (en) * | 2011-11-15 | 2012-04-04 | 深圳市华星光电技术有限公司 | Energy-saving LCD (liquid crystal display) device |
| CN103812491A (en) * | 2013-11-29 | 2014-05-21 | 贝辛电子科技（上海）有限公司 | Integrated panel piezoelectric keyboard and identification method of misoperation of same |
| CN105653098A (en) * | 2015-08-14 | 2016-06-08 | 京东方科技集团股份有限公司 | Touch screen, display panel, display device and electric energy storage method |
| CN111081164A (en) * | 2019-12-30 | 2020-04-28 | 杭州电子科技大学 | Passive electronic road directing device based on energy collector |
| CN112981863A (en) * | 2021-02-19 | 2021-06-18 | 海信（山东）冰箱有限公司 | Washing machine and washing machine control method |
Citations (4)
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| CN1089758A (en) * | 1992-06-24 | 1994-07-20 | 阿尔格拉控股有限公司 | The manufacture method of a kind of telegraph key or keyboard and the product of this method |
| CN1227359A (en) * | 1998-02-27 | 1999-09-01 | 鸿海精密工业股份有限公司 | Key board |
| CN1860432A (en) * | 2003-06-24 | 2006-11-08 | 3M创新有限公司 | Sensing device |
| CN101197866A (en) * | 2006-12-08 | 2008-06-11 | 群康科技(深圳)有限公司 | Mobile phone |
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2011
- 2011-07-15 CN CN2011101988522A patent/CN102221897A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1089758A (en) * | 1992-06-24 | 1994-07-20 | 阿尔格拉控股有限公司 | The manufacture method of a kind of telegraph key or keyboard and the product of this method |
| CN1227359A (en) * | 1998-02-27 | 1999-09-01 | 鸿海精密工业股份有限公司 | Key board |
| CN1860432A (en) * | 2003-06-24 | 2006-11-08 | 3M创新有限公司 | Sensing device |
| CN101197866A (en) * | 2006-12-08 | 2008-06-11 | 群康科技(深圳)有限公司 | Mobile phone |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102402336A (en) * | 2011-11-15 | 2012-04-04 | 深圳市华星光电技术有限公司 | Energy-saving LCD (liquid crystal display) device |
| CN103812491A (en) * | 2013-11-29 | 2014-05-21 | 贝辛电子科技（上海）有限公司 | Integrated panel piezoelectric keyboard and identification method of misoperation of same |
| CN103812491B (en) * | 2013-11-29 | 2016-08-17 | 贝骨新材料科技（上海）有限公司 | A kind of monoblock type panel piezoelectric keyboard and the recognition methods of maloperation thereof |
| CN105653098A (en) * | 2015-08-14 | 2016-06-08 | 京东方科技集团股份有限公司 | Touch screen, display panel, display device and electric energy storage method |
| US10282015B2 (en) | 2015-08-14 | 2019-05-07 | Boe Technology Group Co., Ltd. | Touch screen, display panel, display device and method for storing electric power |
| CN105653098B (en) * | 2015-08-14 | 2019-09-17 | 京东方科技集团股份有限公司 | A kind of touch screen, display panel, display device and the method for storing electric energy |
| CN111081164A (en) * | 2019-12-30 | 2020-04-28 | 杭州电子科技大学 | Passive electronic road directing device based on energy collector |
| CN112981863A (en) * | 2021-02-19 | 2021-06-18 | 海信（山东）冰箱有限公司 | Washing machine and washing machine control method |
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Application publication date: 20111019 |