Title:
DUAL-ROTOR MICROFLOW-ENERGY CAPTURE AND POWER GENERATION DEVICE BASED ON PIEZOELECTRIC EFFECT
Document Type and Number:
WIPO Patent Application WO/2023/005003
Kind Code:
A1
Abstract:
Disclosed in the present invention is a dual-rotor microflow-energy capture and power generation device based on a piezoelectric effect. An inner ring of blades and an outer ring of blades are coaxially and movably sleeved, and rotate relatively. Sheet-like magnetic piezoelectric components and steel magnets, which are uniformly distributed at intervals in a circumferential direction, are provided in an annular gap between the inner ring of blades and the outer ring of blades. The plurality of magnetic piezoelectric components, in the form of cantilever beams, are connected to an inner circumferential surface of the outer ring of blades, the magnetic piezoelectric components are magnetically repulsive to the steel magnets, and the outer edges of the magnetic piezoelectric components are axially arranged. The inner ring of blades and the outer ring of blades rotate relatively to drive the magnetic piezoelectric components and the steel magnets to rotate relatively, and in turn drive the magnetic piezoelectric components to make a reciprocating vibration motion to generate mechanical energy which is then converted into electric energy. According to the present invention, a piezoelectric structure is used for capturing microflow energy, which reduces the minimum power generation flow velocity; and a dual-rotor structure design can effectively improve the oscillation frequency of piezoelectric plates under the microflow action, thereby improving the power generation efficiency of the device.
Inventors:
QIAN PENG (CN)
FENG BO (CN)
ZHANG DAHAI (CN)
SI YULIN (CN)
LIU XIAODONG (CN)
FENG BO (CN)
ZHANG DAHAI (CN)
SI YULIN (CN)
LIU XIAODONG (CN)
Application Number:
PCT/CN2021/124503
Publication Date:
February 02, 2023
Filing Date:
October 18, 2021
Export Citation:
Assignee:
UNIV ZHEJIANG (CN)
International Classes:
H02N2/18; F03B17/06
Foreign References:
| CN112302849A | 2021-02-02 | |||
| CN107086653A | 2017-08-22 | |||
| CN104993739A | 2015-10-21 | |||
| CN112796919A | 2021-05-14 | |||
| US20170194836A1 | 2017-07-06 |
Attorney, Agent or Firm:
HANGZHOU QIUSHI PATENT OFFICE CO., LTD. (CN)
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