The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 19, 2016
Filed:
Oct. 19, 2010
Olivier Pateau, Ecuelles, FR;
Yves Neau, Montigny sur Loing, FR;
Yvan Lefevre, Saint Jean, FR;
Philippe Ladoux, Dremil Lafage, FR;
Pascal Maussion, Toulouse, FR;
Gilbert Manot, Limoges, FR;
Olivier Pateau, Ecuelles, FR;
Yves Neau, Montigny sur Loing, FR;
Yvan Lefevre, Saint Jean, FR;
Philippe Ladoux, Dremil Lafage, FR;
Pascal Maussion, Toulouse, FR;
Gilbert Manot, Limoges, FR;
Electricite de France, Paris, FR;
Centre National de la Recherche Scientifique—CNRS, Paris, FR;
Institut National Polytechnique de Toulouse, Toulouse, FR;
Abstract
Provided is an induction heating method implemented in a device for heating a metal part, the device including magnetically coupled inductors. Oscillating circuits of the device have at least approximately the same resonance frequency, each inverter is controlled by a control unit to vary amplitude and phase of current passing through the corresponding inductor, the device also including a means for determining said current and an actual temperature profile of said part. The method includes: a) comparing said actual temperature profile with a reference temperature profile and calculating a reference power density profile; b) calculating target currents which the inverters must produce in order for the currents of the inductors to reach suitable target values; c) determining the currents passing through the inductors to compare said currents with said target values and determine correction current deviations, and sending correction instructions to said control units in accordance with said current deviations.