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. 21, 2010
Filed:
Aug. 28, 2006
Atsushi Watanabe, Toyota, JP;
Kenichiro Fukumaru, Nishikamo-gun, JP;
Kentaro Haruno, Toyota, JP;
Taketo Takeuchi, Nishio, JP;
Katsumi Amano, Kitakyushu, JP;
Kazutoshi Ueda, Kitakyushu, JP;
Takashi Fukumoto, Kitakyushu, JP;
Atsushi Watanabe, Toyota, JP;
Kenichiro Fukumaru, Nishikamo-gun, JP;
Kentaro Haruno, Toyota, JP;
Taketo Takeuchi, Nishio, JP;
Katsumi Amano, Kitakyushu, JP;
Kazutoshi Ueda, Kitakyushu, JP;
Takashi Fukumoto, Kitakyushu, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Mitsui High-Tec, Inc., Kitakyushu-shi, JP;
Abstract
The present invention has an object to propose a method of producing a rotor, capable of reliably fixing a magnet to a rotor core with resin and preventing breakage of the rotor core. The present invention includes a step of fixing a permanent magnet to a rotor core by injecting molten resin into a slot by injection molding on the condition that, assuming that: a dimension between an end surface of the rotor core and an end surface of the permanent magnet is a core end surface-magnet interval; and a minimum value of a dimension between an inner surface of the slot and a side surface of the permanent magnet, allowing the molten resin to fully fill a clearance between the inner surface of the slot and the side surface of the permanent magnet by injecting the resin into the slot through a cylinder, is a minimum slot-magnet interval value, and a value of the core end surface-magnet interval is equal to or larger than the minimum slot-magnet interval value.