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:
Mar. 17, 2009
Filed:
Feb. 07, 2007
Applicant:
Takao Ichihara, Mie, JP;
Inventor:
Takao Ichihara, Mie, JP;
Assignee:
Fuji Electric FA Components & Systems Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P 27/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A running pattern of one cycle in a preset industrial machine is observed by a current detector and a temperature rise value estimating unit that are additionally provided in a traditional inverter device. The temperature rise value estimating unit derives a maximum temperature rise estimate value for each constituent element in the case where the running pattern is periodically repeated, on the basis of observation data of the one cycle and a temperature rise model of each constituent element of the inverter device.