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:
May. 26, 2009
Filed:
May. 24, 2007
Masatoshi Kobayashi, Kariya, JP;
Minoru Mera, Kariya, JP;
Taku Adaniya, Kariya, JP;
Ai Saeki, Kariya, JP;
Hiroshi Fukasaku, Kariya, JP;
Masatoshi Kobayashi, Kariya, JP;
Minoru Mera, Kariya, JP;
Taku Adaniya, Kariya, JP;
Ai Saeki, Kariya, JP;
Hiroshi Fukasaku, Kariya, JP;
Kabushiki Kaisha Toyota Jidoshokki, Aichi-Ken, JP;
Abstract
A housing of an electric motor includes an inner circumferential surface, which includes recesses arranged along the circumferential direction. On an outer circumferential surface of a stator core of a stator are provided protrusions arranged along the circumferential direction. Fitting each protrusion to the corresponding recess fixes the stator core to the housing. A rotor is provided radially inward of the stator. In a state where each protrusion is fitted to the corresponding recess, a pair of side surfaces of each protrusion are retained by a pair of inner side surfaces of the corresponding recess in the circumferential direction of the housing. A gap is formed between an end face of each protrusion and an inner bottom surface of the corresponding recess facing the end face along the entire surface of the end face.