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. 22, 2011
Filed:
Jul. 11, 2008
Masayuki Takenaka, Anjo, JP;
Hiroaki Sanji, Anjo, JP;
Tomohiko Miyamoto, Toyota, JP;
Ryuta Ishida, Okazaki, JP;
Masayuki Takenaka, Anjo, JP;
Hiroaki Sanji, Anjo, JP;
Tomohiko Miyamoto, Toyota, JP;
Ryuta Ishida, Okazaki, JP;
Aisin AW Co., Ltd., Anjo, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A cooling structure of a rotating electrical machine including a stator and a rotor, the cooling structure including magnet accommodating holes provided in a rotor core of the rotor, the magnet accommodating holes extend between axial core end faces of the rotor core, wherein permanent magnets are accommodated in the magnet accommodating holes; a plurality of voids, which prevent leakage flux, in contact with the permanent magnets and extending between the axial core end faces; and a rotor cooling-liquid supply passage that supplies cooling liquid to one core end face, wherein the cooling liquid supplied from the rotor cooling-liquid supply passage is introduced into the voids to prevent leakage flux, and the permanent magnets are cooled by the cooling liquid flowing through the voids.