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. 15, 2019
Filed:
May. 03, 2017
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Makoto Matsushita, Fuchu, JP;
Daisuke Misu, Tama, JP;
Norio Takahashi, Yokohama, JP;
Katsutoku Takeuchi, Kawasaki, JP;
Fumiaki Ito, Fuchu, JP;
Toshio Hasebe, Hachioji, JP;
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Abstract
According to one embodiment, an induction motor includes a stator and a rotor. The stator has a stator coil disposed at a stator core having a plurality of stator slots. The rotor has a rotor core rotatably provided with respect to the stator. The rotor core includes a plurality of rotor teeth and a rotor slot formed between the plurality of rotor teeth and having a rotor conductor disposed therein. The rotor teeth include a teeth main body and a flange. The teeth main body extends in a radial direction of the rotor core. The flange extends in a rotating direction of the rotor core from a distal end of the teeth main body. Then, a recessed surface is formed on at least part of an outer circumferential surface of a radial outer side in the flange.