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:
Nov. 16, 2021
Filed:
Jun. 05, 2019
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Fumitaka Yoshinaga, Toyota, JP;
Akira Yamashita, Toyota, JP;
Airi Kamimura, Toyota, JP;
Kazuaki Haga, Toyota, JP;
Kensuke Komori, Toyota, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
Provided is an IPM motor that is strong and has high output. An IPM motor has a rotor that includes a rotor core as a laminate of a plurality of metal foil pieces made of a soft magnetic material that are stacked in a direction of a rotation axis of the rotor. The rotor core has a plurality of through-holes that penetrates through the rotor core in the direction of the rotation axis, the plurality of through-holes including through-holes embedding magnets. The rotor core includes inner bridges and outer bridges. At least one of the inner bridges and the outer bridges of the rotor core is made of an amorphous soft magnetic material, and other parts are made of a nanocrystal soft magnetic material.