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:
Oct. 21, 2014
Filed:
Jan. 20, 2011
Yoshihiro Miyama, Tokyo, JP;
Moriyuki Hazeyama, Tokyo, JP;
Masaya Inoue, Tokyo, JP;
Yoshiko Obiraki, Tokyo, JP;
Tatsuya Kitamura, Tokyo, JP;
Yoshihiro Miyama, Tokyo, JP;
Moriyuki Hazeyama, Tokyo, JP;
Masaya Inoue, Tokyo, JP;
Yoshiko Obiraki, Tokyo, JP;
Tatsuya Kitamura, Tokyo, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A first inverter ventilation aperture is disposed so as to pass through a portion of a fin base that faces a bearing, a first rotor ventilation aperture is disposed so as to pass through a portion of a bottom surface portion that faces the bearing, and a first cooling airflow ventilation channel is formed in which a cooling airflow flows radially inward through radiating fins, then flows toward a first surface side of a mount portion through the first inverter ventilation aperture, flows axially through an interior portion of a stator core, and then flows out between the bottom surface portion and a base portion through the first rotor ventilation aperture, and subsequently flows radially outward between the bottom surface portion and the base portion due to rotational driving of a centrifugal fan.