Title:
AN ELECTROMECHANICAL GENERATOR FOR CONVERTING MECHANICAL VIBRATIONAL ENERGY INTO ELECTRICAL ENERGY
Document Type and Number:
WIPO Patent Application WO/2011/023665
Kind Code:
A3
Abstract:
An electromechanical generator for converting mechanical vibrational energy into electrical energy, the electromechanical generator comprising a housing, an electrically conductive coil assembly fixedly mounted in the housing, a magnetic core assembly movably mounted in the housing for linear vibrational motion along an axis, a first biasing device, mounted between the housing and the magnetic core assembly, adapted to apply a centering force acting to oppose movement of the magnetic core assembly away from a central position on the linear axis and a second magnetic biasing device adapted to provide a compensating force to compensate for variations in the centering force of the first biasing device due to temperature.
Inventors:
WASENCZUK ADAM (GB)
ROBERTS STEPHEN (GB)
ROBERTS STEPHEN (GB)
Application Number:
PCT/EP2010/062274
Publication Date:
March 15, 2012
Filing Date:
August 23, 2010
Export Citation:
Assignee:
PERPETUUM LTD (GB)
WASENCZUK ADAM (GB)
ROBERTS STEPHEN (GB)
WASENCZUK ADAM (GB)
ROBERTS STEPHEN (GB)
International Classes:
H02K35/02
Foreign References:
| GB2439411A | 2007-12-27 | |||
| US3453573A | 1969-07-01 | |||
| US3582874A | 1971-06-01 |
Other References:
VINOD R CHALLA ET AL: "A vibration energy harvesting device with bidirectional resonance frequency tunability", SMART MATERIALS AND STRUCTURES, IOP PUBLISHING LTD., BRISTOL, GB, vol. 17, no. 1, 1 February 2008 (2008-02-01), pages 15035, XP020130153, ISSN: 0964-1726
Attorney, Agent or Firm:
JENKINS, Peter David et al. (Bedford HouseJohn Street, London Greater London WC1N 2BF, GB)
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