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:
Dec. 31, 2013
Filed:
Mar. 22, 2011
Tomohiro Inagaki, Nishio, JP;
Ken Takeda, Anjo, JP;
Shinichi Otake, Kota, JP;
Tsuyoshi Miyaji, Toyohashi, JP;
Yuta Watanabe, Nishio, JP;
Ryosuke Utaka, Takahama, JP;
Shinya Sano, Toyota, JP;
Takeshi Tomonaga, Toyota, JP;
Tomohiro Inagaki, Nishio, JP;
Ken Takeda, Anjo, JP;
Shinichi Otake, Kota, JP;
Tsuyoshi Miyaji, Toyohashi, JP;
Yuta Watanabe, Nishio, JP;
Ryosuke Utaka, Takahama, JP;
Shinya Sano, Toyota, JP;
Takeshi Tomonaga, Toyota, JP;
Aisin AW Co., Ltd., Anjo, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Abstract
A rotary electric machine configured with a stator, rotor, and permanent magnets disposed in an inverted V-shape that becomes gradually narrower from a side of a center of rotation of the rotor. The rotor is provided with a plurality of support portions that extend radially about the center of rotation, and gap portions are respectively formed in correspondence with the plurality of support portions at positions spaced by a predetermined distance from an edge portion of the permanent magnets in a flowing direction of magnetic flux between the permanent magnets and the stator. The gap portions are formed to have such a length that causes magnetic saturation during generation of low torque in a low-current state and that causes no magnetic saturation during generation of maximum torque in a high-current state in which electricity at a high current is supplied to the stator coil.