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:
Jun. 09, 2026
Filed:
Nov. 02, 2022
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Yasuyuki Yokouchi, Osaka, JP;
Akihiko Watanabe, Osaka, JP;
Abstract
A discharge phenomenon of a bearing is detected with high accuracy. Electric motor () includes stator () including stator core () with winding () wound around stator core (), rotor () facing stator () and including rotating body () and shaft (), first and second bearings () that are a pair of bearings, first and second brackets () that are a pair of brackets respectively fix outer rings () of the pair of bearings, conductor (), and current detector (). Each of the pair of bearings includes inner ring () and outer ring () and supports shaft () with inner ring (). Conductor () electrically connects outer ring () of first bearing (A) and outer ring () of second bearing (B) or stator core (). Current detector () detects a discharge current flowing through conductor () accompanying discharge in first bearing (A) or second bearing (B).