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Title:
FOUR-SIDED-SYNCHRONOUS-SWING DUAL-MODE BROADBAND POWER GENERATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/041757
Kind Code:
A1
Abstract:
A four-sided-synchronous-swing dual-mode broadband power generation device, consisting of a fixing frame, a piezoelectric beam swing mechanism, and electromagnetic induction power generators (7). Four groups of straight piezoelectric beams (6) and L-shaped piezoelectric beams (5) are installed in a small space, and therefore, a limited working space can be fully utilized, the working area can be reduced, and the requirements of the development of a microelectromechanical system can be satisfied. Each L-shaped piezoelectric beam (5) consists of a horizontal beam and a vertical beam, so that vibration in two directions can be implemented, and therefore, the dynamic behavior of piezoelectric cantilevers can be enriched, and the power generation efficiency of the system can be improved. The straight piezoelectric beams (6) and the L-shaped piezoelectric beams (5) have different lengths, so that energy of different swing frequencies can be effectively harvested, and the effective working frequency bandwidth can be broadened. The adjacent straight piezoelectric beams (6), L-shaped piezoelectric beams (5), and electromagnetic induction power generators (7) constitute four groups of dual-mode piezoelectric electromagnetic composite power generation structures, and therefore, power generation performance can be effectively improved. The four-sided-synchronous-swing dual-mode broadband power generation device can harvest energy inputted in the form of rotation in an environment and currently can be applied to wind power generation, hydroelectric power generation, bicycle self-power supply, and other fields.

Inventors:
YAO, Minghui (No. 100 Pingleyuan, Chaoyang District, Beijing 4, 100124, CN)
LIU, Pengfei (No. 100 Pingleyuan, Chaoyang District, Beijing 4, 100124, CN)
MA, Li (No. 100 Pingleyuan, Chaoyang District, Beijing 4, 100124, CN)
XIA, Wei (No. 100 Pingleyuan, Chaoyang District, Beijing 4, 100124, CN)
Application Number:
CN2018/075619
Publication Date:
March 07, 2019
Filing Date:
February 07, 2018
Export Citation:
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Assignee:
BEIJING UNIVERSITY OF TECHNOLOGY (No. 100 Pingleyuan, Chaoyang District, Beijing 4, 100124, CN)
International Classes:
H02N2/18; H02K35/02
Foreign References:
CN107359826A2017-11-17
CN205249087U2016-05-18
CN206370787U2017-08-01
CN104821743A2015-08-05
CN203896222U2014-10-22
US20160079886A12016-03-17
Attorney, Agent or Firm:
BEIJING SIHAI TIANDA INTELLECTUAL PROPERTY AGENCY LTD. (Room 302, The East Wing of Old LibraryBeijing University of Technology,No. 100 Pingleyuan, Chaoyang District, Beijing 4, 100124, CN)
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