Energy collecting device capable of simultaneously collecting a plurality of different types of environment energy
An energy harvesting and environmental technology, applied in circuit devices, battery circuit devices, current collectors, etc., can solve the problems of complex control, inability to collect multiple environmental energy at the same time, and complex circuit structure.
Inactive Publication Date: 2019-05-24
CHANGSHA UNIVERSITY
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Problems solved by technology
The former has a complex circuit structure, and multiple energy harvesting circuits need to be connected in parallel to collect multiple environmental energies; while the latter has a simple circuit, but the control is complex, and it cannot collect multiple environmental energies at the same time, resulting in low energy conversion efficiency.
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[0011] The structure and working principle of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments:
[0012] The solar battery panel is composed of a plurality of small solar battery panels connected in series, so it has a relatively high DC output voltage. The DC output feeds as figure 2 The third input end of the shown DC-DC switching converter, the output of the thermoelectric generator is sent to the second input end of the DC-DC switching converter, the solar panel, the piezoelectric generator and the thermoelectric generator The common end is connected to the first input end of the DC-DC switching converter, that is, the ground end, and the piezoelectric generator is connected in parallel with the solar cell panel, so that the piezoelectric generator outputs alternating current and the solar cell Board DC is superimposed to generate DC output, such as image 3 shown, thereby avoiding the use of ...
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The invention discloses an energy collecting device capable of simultaneously collecting a plurality of different types of environmental energy. The plurality of different types of environmental energy comprise solar energy, vibration energy and heat energy. The solar energy, the vibration energy and the heat energy are converted to raw electric energy through a solar panel, a piezoelectric generator and a thermoelectric generator; one ends of the solar panel, the piezoelectric generator and the thermoelectric generator are connected as a common end to be connected with the first input end ofthe energy collecting circuit; the other end of the solar panel is connected with the other end of the piezoelectric generator, and the solar panel and the piezoelectric generator are parallelly connected and are connected with the second input end of the energy collecting circuit; the other end of the thermoelectric generator is connected with the third input end of the energy collecting circuit.Through controlling the energy collecting circuit and collecting the raw electric energy converted by the solar panel, the piezoelectric generator and the thermoelectric generator, the purpose of simultaneously collecting a plurality of different types of environmental energy is thus realized.
Description
technical field [0001] The invention mainly relates to an energy harvesting device capable of simultaneously harvesting multiple different types of environmental energy. Background technique [0002] Environmental energy includes three common environmental energies: solar energy, vibration energy and thermal energy. Harvesting these three environmental energies at the same time to supply power to loads is a new power supply technology that replaces traditional battery power supply. In order to collect multiple different types of energy, the energy harvesting circuit either uses multiple circuits in parallel, and each circuit collects the environmental energy corresponding to one path; or uses time division multiplexing to collect energy for different types of environmental energy in different time slots . The former has a complex circuit structure and needs to connect multiple energy harvesting circuits in parallel to collect multiple environmental energies; while the latt...
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IPC IPC(8): H02J7/35H02J7/32
Inventor 吴了郭苗苗郭晨睿谢明华谭敏马凌云龙英王新辉刘辉朱培栋
Owner CHANGSHA UNIVERSITY