Enkeshafi, Ali Asghar

Khazaee, Majid

Rezaniakolaei, Alireza

Riahi, Sam

Rosendahl, Lasse

English

Disclosed is an energy harvester for generating electric energy from an external vibratory force, such as a vibratory force caused by movement of a part of a living human or animal. The energy harvester has a compartment (CMPI, CMP2) with wall element(s) forming a cavity inside. At least one wall element of the compartment has a piezoelectric element connected to an elec­tric output terminal. An impact object (BL) is positioned inside the cavity of the compartment. The impact object is configured to move inside the cavity and to generate an impact on a surface of the wall element(s), so as to cause the piezo­electric element to generate an electric output on the electric output terminal. The compartment may have a cubic shape, e.g. made of a single piezoelectric element folded into shape, e.g. a two-layer piezoelectric element. The impact object may be a metal or ceramics object with a spherical shape. Especially, the energy harvester may be used to power an implantable medical device, e.g. an intra-cardiac pacemaker. An energy harvester housing within an intra-cardiac pacemaker has been tested to be snfficient for powering the pacemaker stimu­lation circuit by the vibratory force caused by heartbeats

    Aalborg UniversitetEnergy Harvester based on Piezoelectric Impact CompartmentRezaniakolaei, Alireza; Riahi, Sam; Enkeshafi, Ali Asghar; Khazaee, Majid; Rosendahl, LassePublication date:2023Document VersionPublisher's PDF, also known as Version of recordLink to publication from Aalborg UniversityCitation for published version (APA):Rezaniakolaei, A., Riahi, S., Enkeshafi, A. A., Khazaee, M., & Rosendahl, L. (2023). Energy Harvester based onPiezoelectric Impact Compartment. (Patent No. WO 2023/138743 A1). The Patent Cooperation Treaty (PCT).General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright ownersand it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.            - Users may download and print one copy of any publication from the public portal for the purpose of private study or research.            - You may not further distribute the material or use it for any profit-making activity or commercial gain            - You may freely distribute the URL identifying the publication in the public portal -Take down policyIf you believe that this document breaches copyright please contact us at vbn@aub.aau.dk providing details, and we will remove access tothe work immediately and investigate your claim.Downloaded from vbn.aau.dk on: September 08, 2023

Energy Harvester based on Piezoelectric Impact Compartment

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Energy Harvester based on Piezoelectric Impact Compartment

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