Double-layer variable capacitance power generation device for absorbing vibration energy
A technology of power generation device and variable capacitance, which is applied in the directions of generators/motors, electrical components, etc., can solve problems such as small practical application range, achieve good adaptability and improve efficiency.
Active Publication Date: 2015-01-21
SHANGHAI JIAO TONG UNIV
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Its practical application range is relatively small
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[0031] Such as figure 1 As shown, this device is a double-layer variable capacitance power generation device that absorbs vibration energy. 4), liquid working medium (5), gas working medium (6), capacitor plate (7).
[0032]The inertia case (1) is an insulating material with a certain quality. In this embodiment, a glass case or a heavy plastic case can be used. Two highly elastic insulating film round tubes (2) with a maximum allowable deformation of not less than 35% are installed inside the inertial housing (1). In this embodiment, rubber films can be used; two high elastic insulating film round tubes The middle of (2) is equipped with a mover hard insulating plate (3), and the electret (4) is embedded in the mover hard insulating plate (3), and the inside of the highly elastic insulating film tube (2) is close to the inertia One side of the housing (1) is equipped with a capacitor plate (7), and the hard insulating plate (3) of the mover in this embodiment can be a light...
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The invention discloses a double-layer variable capacitance power generation device for absorbing vibration energy. The double-layer variable capacitance power generation device is characterized by comprising an inertia shell which is made of an insulation material and has a certain quantity, the inertia shell is internally provided with two high-elasticity insulation thin film circular pipes, a rotor hard insulation plate is installed between the two high-elasticity insulation thin film circular pipes, electrets are embedded into the rotor hard insulation plate, the middle portion of each high-elasticity insulation thin film circular pipe is filled with a liquid working medium, the two ends of each high-elasticity insulation thin film circular pipe are filled with gas working media, and the side, close to the inertia shell, in each high-elasticity insulation thin film circular pipe is provided with a capacitive plate. A variable capacitor is formed by the electrets and the capacitive plates. The electrets provide stable voltage, the capacitive value is changed through the movement of the rotor hard insulation plate, and therefore changeable current is formed; by means of the mode that a rotor drives the media to flow, a synergistic effect is formed through two different principles, obvious capacitive change is produced under the tiny amplitude, and the double-layer variable capacitance power generation device is specially suitable for recycling noise and other vibration energy with small amplitude.
Description
technical field [0001] The invention relates to a power generation device using vibration or fluctuating energy as an energy source, in particular to a kind of vibration energy suitable for collecting noise, small vibration of workshop walls, etc. which are difficult to collect by conventional means, and belongs to the technical field of energy-saving power generation applications. Background technique [0002] The power generation technology based on the dielectric effect is to change the capacitance value at a fixed voltage, and then change the electric quantity at both ends of the capacitance, thereby forming a changing current. In this process, the core component electret is used to provide a stable voltage between the plates. There are generally three ways to change the capacitance value: changing the distance between the plates, changing the relative area of the plates, and changing the dielectric constant of the medium in the capacitor cavity. Traditional power gen...
Claims
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Login to View More IPC IPC(8): H02N11/00
CPCH02N11/002
Inventor 姚晔廖东吴成周鸿运
Owner SHANGHAI JIAO TONG UNIV