WO2014110849A1 - 一种震动发电机及其级联结构发电机 - Google Patents
一种震动发电机及其级联结构发电机 Download PDFInfo
- Publication number
- WO2014110849A1 WO2014110849A1 PCT/CN2013/071372 CN2013071372W WO2014110849A1 WO 2014110849 A1 WO2014110849 A1 WO 2014110849A1 CN 2013071372 W CN2013071372 W CN 2013071372W WO 2014110849 A1 WO2014110849 A1 WO 2014110849A1
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- WO
- WIPO (PCT)
- Prior art keywords
- friction unit
- electrode
- generator
- friction
- material layer
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
Definitions
- the invention relates to a vibration generator and a cascade structure generator thereof, and provides a self-powered solution for an Internet of Things, an implantable medical device and a portable electronic device, that is, using the principle of electrostatic induction to collect mechanical motion in daily life, Generator design and application scenarios for energy such as vibration, collision and friction. Background technique
- a vibration generator characterized by comprising an arched friction unit 1 and an arched friction unit 2, wherein the inner concave surface of the arched friction unit 1 and the concave inner surface of the arcuate friction unit 2 are respectively opposite to each other as a friction surface
- the outer convex surface of the arched friction unit 1 is provided with an electrode and supporting material layer
- the outer convex surface of the arched friction unit 2 is provided with an electrode and supporting material layer.
- a vibration generator is characterized in that it comprises an arch-shaped friction unit 1, an arch-shaped friction unit 2, and a convex surface on the outer side of the arch-shaped friction unit 1 and a convex surface on the outer side of the arc-shaped friction unit 2 are respectively opposite to each other as a friction surface
- the inner concave surface of the arched friction unit 1 is provided with an electrode and supporting material layer
- the inner concave surface of the arched friction unit 2 is provided with an electrode and supporting material layer.
- the arched friction unit 1 is connected to the electrode and supporting material layer through an insulating bonding layer; the arcuate friction unit 2 is connected to the electrode and supporting material layer through an insulating bonding layer.
- the electrode and supporting material layer is a metal electrode plate; and the insulating bonding layer is an adhesive.
- the friction surface of the arched friction unit 1 has a micro/nano pattern structure or a smooth surface
- the friction surface of the arcuate friction unit 2 has a micro/nano pattern structure or a smooth surface.
- the material of the arched friction unit 1 is polydimethylsiloxane; the material of the arched friction unit 2 is polyethylene terephthalate; the electrode and supporting material layer is aluminum Electrode plate.
- a cascade structure generator characterized by comprising a plurality of vibration generators according to claim 1, a plurality of first geometric complementary friction units matching the electrode and support material layers of the vibration generator, and a second a geometric complementary friction unit; wherein, the plurality of the vibration generators respectively pass through a set of the first geometric complementary friction units, a second geometric complementary friction unit connection; a first geometric complementary friction unit connecting the two vibration generators; and an electrode and support material layer connected thereto, a second geometric complementary friction unit, and an electrode and supporting material layer connected thereto A vibration generator complementary to the vibration generator. Further, the first complementary friction unit is connected to the electrode and supporting material layer through an insulating bonding layer; and the second complementary friction unit is connected to the electrode and supporting material layer through an insulating bonding layer.
- a surface of the first complementary friction unit opposite to the second complementary friction unit has a micro/nano pattern structure or a smooth surface; the second complementary friction unit and the first complementary friction unit The opposite surface has a micro/nano pattern structure or is a smooth surface.
- a plurality of the vibration generators are relatively fixed together by a connecting belt or a connecting line.
- the present invention improves a single layer generator.
- the original generator uses the stress difference between polyimide and silicon oxide to form an arch structure, and then adds a friction layer and an electrode on both sides of the arch structure.
- the invention utilizes pre-bent aluminum foil, directly as electrode layer and arch shape, simplifies the process steps of multiple molding, separates the material selection of the support layer, can select more suitable materials, and provides better elasticity for the generator. And reliability, while also enabling the packaging of the generator;
- the invention proposes a novel complementary single-layer generator, which forms a good geometric complement with the original arch shape, and at the same time maintains the excellent performance of the single-layer generator;
- the invention proposes a generator with a stacked spring structure, which can absorb external energy shock more effectively than a single-layer generator, thereby using more energy for external output; by complementary geometric superposition, by generating electricity through the original single layer
- the performance of the simple stacking of the generator is doubled, which increases the energy output per unit area and unit volume while saving material and processing costs.
- the present invention has an output voltage of up to 760 volts and an output power of 38 mW (10.1 mW/cm 2 ) in the case of only a double stack, which is much higher than other micro power generation technologies.
- the number of laminates can be increased in a large amount, so that the output of the generator is greatly improved, and finally applied to the actual production and life, promoting and realizing the effective collection and utilization of environmental energy.
- This technology will be a revolutionary technology in the energy field and will develop into an important new industry. With the further reduction of power consumption of existing electronic devices, this technology will completely change the energy supply mode of handheld electronic devices and permanently solve the long-term standby problem. It can also be widely used in other low-energy devices and related fields that require long-term power supply. :
- Power supplement for handheld electronic devices It can charge the battery of handheld devices such as smartphones, tablets, and e-books, making handheld electronic devices stand by for a long time or no charge. Examples are as follows:
- the transparent film is combined with the touch screen. When the screen is touched, the power is generated to supply power to the screen. The excess power can charge the battery. In normal state, the external vibration is generated to generate electric energy to charge the battery.
- the charging cover of the mobile phone is connected with the charging circuit of the mobile phone to directly charge the mobile phone;
- the power supply of the portable machine is as follows:
- the transparent film is combined with the touch screen to generate electricity when the screen is touched, and the screen is powered.
- the excess power can charge the battery of the portable device. Under normal conditions, the external vibration is generated to generate electric energy to charge the battery;
- the micro-vibration energy harvester is placed under the keyboard of the portable computer, and is connected with the corresponding charging circuit, and the portable computer is charged while tapping the keyboard;
- a) use the vibration of the ground or subject in the environment, the vibration generated by the flow of air or water, to supply power to various IoT sensors (eg animal stocking tracking, field management, ocean current/water system monitoring, meteorological detection, environmental monitoring, etc.) , thereby eliminating the time-consuming and labor-intensive consequences of replacing the battery;
- IoT sensors eg animal stocking tracking, field management, ocean current/water system monitoring, meteorological detection, environmental monitoring, etc.
- Figure 1 is a structural diagram of a conventional generator
- Figure 2 is a schematic diagram of a single electrostatic induction generator and its output
- FIG. 1 is the structure diagram, (b) is the friction unit structure diagram, (c) voltage output diagram, (d) voltage output diagram;
- Figure 3 is a schematic diagram of the double-stack electrostatic induction generator and its output;
- (a) is the structure diagram, (b) voltage output diagram, (C) voltage output diagram, (d) voltage output diagram;
- Figure 4 is a schematic diagram of the three-stack electrostatic induction generator and its continuous output;
- (a) is a structure diagram, (b) voltage output diagram, (c) voltage output diagram;
- Figure 5 is a schematic diagram of a single complementary electrostatic induction generator and its output:
- 1-friction unit 1 1 - friction unit 2
- 3-electrode layer and support layer ie electrode and support material layer
- 4 - single-layer generator 5-complementary single-layer generator.
- stacking in addition to the arch shape, stacking can be performed for various other geometric shapes; the number of cascades is not limited to the two or three generator cascades given in FIGS. 3 and 4, It is a cascade of multiple generators.
- Figure 2 is a schematic diagram of a single arch form electrostatic induction generator
- the 1 in Figure 2 (a) is polydimethylsiloxane (PDMS), as the friction unit 1, and the micro-nano pattern can be made on the friction unit 1 by micromachining, as shown in Figure 2 (b). , such as pyramids, grids, etc.;
- PDMS polydimethylsiloxane
- the friction unit 2 is polyethylene terephthalate (PET), and the micro-nano pattern can also be formed by the micro-machining method on the friction unit 2;
- PET polyethylene terephthalate
- the metal electrode plate 3 is a metal material and is also a structural support layer.
- the material of the electrode plate 3 is selected to have different materials to adjust and improve the stiffness coefficient and reliability of the generator;
- 2(c), (d) are the device outputs. It can be seen that the maximum output voltage of the device is 518.4V and the internal resistance is about 1OMohm, so the maximum output power of the device is 6.7mW (1.77 mW/cm 2 ).
- Figure 5 is a schematic diagram of a single inverted arch form electrostatic induction generator
- 1 is polydimethylsiloxane (PDMS), as the friction unit 1, and micro-nano patterns can be made on the friction unit 1 by micromachining, as shown in Figure 5 (b). , such as pyramids, grids, etc.;
- PDMS polydimethylsiloxane
- the friction unit 2 is polyethylene terephthalate (PET), and the micro-nano pattern can also be made by the micro-machining method on the friction unit 2;
- PET polyethylene terephthalate
- the metal electrode plate 3 is a metal material and is also a structural support layer.
- the material of the electrode plate 3 is selected to have different materials to adjust and improve the stiffness coefficient and reliability of the generator; 4. 1 and 3, 2 and 3 can be bonded by adhesive. There is no generator of this structure at present;
- Figures 5(b) and (c) show the device output.
- the maximum output voltage of the device is 450V
- the internal resistance is about 9Mohm
- the maximum output power is 5.6mW (1.5mW/cm 2 ).
- Figure 3 is a schematic diagram of a double stack electrostatic induction generator
- the double stack structure here is composed of two arches and an inverted arch shape.
- the friction unit 1 is polydimethylsiloxane (PDMS)
- the friction unit 2 is Polyethylene terephthalate (PET)
- these two materials can be selected according to the sequence of triboelectric charging to maximize the friction pairing combination, and micro-nano graphics can also be made by micromachining, such as pyramids, grids
- the metal electrode plate 3 is a metal material and is also a structural support layer. The output voltage of each generator is output through a lead wire connected to the electrode plate, and 1 and B 3, 2 and 3 can be adhered by an adhesive.
- the two stacked arches are relatively fixed together by connecting straps or wires;
- Figure 4 is a schematic diagram of a three-layer electrostatic induction generator
- the structure of the triple-stack generator is similar to that of the double stack, consisting of three arches and two inverted arches, as shown in Fig. 4 (a), the same friction unit 1 is polydimethylsiloxane. (PDMS), the friction unit 2 is polyethylene terephthalate (PET), which can select the largest friction pairing combination according to the sequence of triboelectric charging, and can also be made by micromachining.
- PDMS polydimethylsiloxane.
- PET polyethylene terephthalate
- metal electrode plate 3 is a metal material, and is also a structural support layer, between 1 and 3, 2 and 3 can be bonded by common adhesive, the output voltage of each generator Through the lead output connected to the electrode plate, and then connected in parallel, the output can be extended to the multi-stack electrostatic generator; the output voltage is shown in Figure 4 (b).
- the plurality of stacked arches are relatively fixed together by a connecting strip or wire.
- multi-stack generators Another great advantage of multi-stack generators is that the output voltage is longer and therefore allows continuous energy output. As shown in Figure 4 (c), the generator continuously outputs a continuous square wave voltage signal with an amplitude of up to 12V under the action of 3Hz external shock.
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/762,135 US9825558B2 (en) | 2013-01-21 | 2013-02-05 | Vibration generator and stacked-structure generator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN201310022144.2A CN103944443B (zh) | 2013-01-21 | 2013-01-21 | 一种级联结构发电机 |
CN201310022144.2 | 2013-01-21 |
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WO2014110849A1 true WO2014110849A1 (zh) | 2014-07-24 |
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Family Applications (1)
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PCT/CN2013/071372 WO2014110849A1 (zh) | 2013-01-21 | 2013-02-05 | 一种震动发电机及其级联结构发电机 |
Country Status (3)
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US (1) | US9825558B2 (zh) |
CN (1) | CN103944443B (zh) |
WO (1) | WO2014110849A1 (zh) |
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CN111555659A (zh) * | 2020-04-20 | 2020-08-18 | 同济大学 | 一种可组合的静电式动能采集器及其制备方法 |
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Also Published As
Publication number | Publication date |
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CN103944443B (zh) | 2016-09-07 |
CN103944443A (zh) | 2014-07-23 |
US9825558B2 (en) | 2017-11-21 |
US20150318800A1 (en) | 2015-11-05 |
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