Title:
COMBINATION VANE-TYPE WIND ENERGY COLLECTOR
Document Type and Number:
WIPO Patent Application WO/2017/181702
Kind Code:
A1
Abstract:
A combination vane-type wind energy collector comprises a piezoelectric energy collection module and a friction energy collection module; the piezoelectric energy collection module comprises a vane (7) and a flexible piezoelectric cantilever beam (3); the vane is connected to and is parallel with a free end of the flexible piezoelectric cantilever beam, and the vane drives the flexible piezoelectric cantilever beam to produce periodic vibration within a frame (1); the friction energy collection module comprises a moving friction layer (6) adhered to the surface of the flexible piezoelectric cantilever beam and a fixed friction layer (5) adhered to the inner surface of the frame; and the moving friction layer and the fixed friction layer can periodically contact with or separate from each other within the frame. The combination vane-type wind energy collector increases density of output energy by adopting friction and piezoelectric energy collection methods. The design of the vane at the tail end of the cantilever beam can better respond to airflow disturbances, and thus increases the vibration amplitude of the piezoelectric cantilever beam and the piezoelectric voltage output. In addition, the double-arc, choked-flow frame design increases the contact area between friction layers and thereby increases friction-generated output voltage.
Inventors:
LIU HUICONG (CN)
CHEN TAO (CN)
JIN GUOQING (CN)
SUN LINING (CN)
XIA YUEDONG (CN)
CHEN TAO (CN)
JIN GUOQING (CN)
SUN LINING (CN)
XIA YUEDONG (CN)
Application Number:
PCT/CN2016/110746
Publication Date:
October 26, 2017
Filing Date:
December 19, 2016
Export Citation:
Assignee:
ZHANGJIAGANG INST IND TECHNOLOGIES SOOCHOW UNIV (CN)
International Classes:
H02N1/04; H02N2/18
Foreign References:
| CN105680717A | 2016-06-15 | |||
| CN205725515U | 2016-11-23 | |||
| CN204361933U | 2015-05-27 | |||
| CN203377812U | 2014-01-01 | |||
| CN104124887A | 2014-10-29 | |||
| US20140265733A1 | 2014-09-18 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW (CN)
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