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. 10, 2023
Filed:
Nov. 08, 2021
Nidec Corporation, Kyoto, JP;
Kuniaki Tanaka, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
A rotor includes an axially extending in an axial direction, a rotor core including a central hole through which the shaft passes and accommodation holes radially outside the central hole, and magnets accommodated in the accommodation holes. The accommodation holes include a pair of accommodation holes extends in a direction away from each other in a circumferential direction from a radially inside toward a radially outside when viewed in the axial direction. The magnets include a pair of magnets accommodated in the pair of accommodation holes. The rotor core includes through-holes made at intervals in the circumferential direction, and is configured by laminating plates. The through-holes are located radially outside the central hole and radially inside the accommodation hole. The stacked plates are fixed to each other by a caulking portion in which a portion of the plate is caulked.