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. 22, 2019
Filed:
Mar. 12, 2015
Aichi Steel Corporation, Tokai-shi, Aichi, JP;
AICHI STEEL CORPORATION, Tokai-shi, Aichi-ken, JP;
Abstract
An apparatus for manufacturing an interior permanent magnet-type inner rotor and manufacturing method using the same. The apparatus including: a mold having a three-layer structure; the method including a shrink fitting step of heating a rotor core having slots; and a filling step of filling the rotor core slots in a residual heat state after the shrink fitting step with a flowable mixture of a binder resin heated to a flowable state and having anisotropic magnet particles, in oriented magnetic fields. This allows, in similar manufacturing steps, an inner rotor of which magnetic poles are anisotropic bond magnets formed by solidifying the flowable mixture in the slots and a conventional inner rotor of which the magnetic poles are sintered magnets. This allows both the inner rotors concurrently and in parallel (mixed flow production) in an already existing IPM motor manufacturing line.