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1. (WO2015044542) DEVICE FOR RECEIVING IMPACTS, COMPRISING INNER PIEZOELECTRIC ENERGY RECOVERY MEANS

Pub. No.:    WO/2015/044542    International Application No.:    PCT/FR2014/051951
Publication Date: Fri Apr 03 01:59:59 CEST 2015 International Filing Date: Tue Jul 29 01:59:59 CEST 2014
IPC: A63B 24/00
A63B 43/00
A63B 39/00
A63B 21/005
H02N 2/18
G01L 9/00
A63B 45/00
Applicants: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
Inventors: SAVELLI, Guillaume
CORONEL, Philippe
GUERIN, Chloé
Title: DEVICE FOR RECEIVING IMPACTS, COMPRISING INNER PIEZOELECTRIC ENERGY RECOVERY MEANS
Abstract:
The invention relates to a device (10) comprising: a deformable shell (12) defining an inner space (14) under a gas pressure higher than atmospheric pressure, comprising a flexible piezoelectric membrane (18) applied to an inner wall (20) of the deformable shell (12) under the effect of the pressure in the inner space (14), said membrane (18) being able to produce electrical energy under the effect of a deformation of the shell (12); an electric circuit (22) electrically connected to the piezoelectric membrane (18), comprising an element (38) for storing the electrical energy produced thereby and a rigid structure; and longilineal elastic elements (24) for holding the electric circuit (22) according to a pre-determined position (26) of the inner space (14), each holding element (24) being arranged between the rigid structure (42) of the electric circuit (22) and the inner wall (20) of the deformable shell (12), and being secured to the piezoelectric membrane (18) and the rigid structure.