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. 30, 2004
Filed:
Oct. 25, 2001
Yukio Katsuzawa, Yamanashi, JP;
Yoshinobu Maeda, Yamanashi, JP;
Shinpei Uemura, Yamanashi, JP;
Kazuki Yoshimura, Yamanashi, JP;
Fanuc Ltd., Yamanashi, JP;
Abstract
A compact terminal unit for an electric motor capable of switching over windings with ease and improving automation of assembling and inspection process of the electric motor. A terminal base is fixed at a position of a through hole formed on a housing of the electric motor. Leads of the windings of a rotor are connected with cylindrical presser portions of lead connectors by caulking. A conducting portions of the lead connectors are inserted into mounting portions of the terminal base. The power cables are connected with conducting portions with screws engaged with the conducting portions so that the power cables are electrically connected with leads of the windings. Since the leads are connected to the lead connectors with their orientations vertically under the power cable connection terminals not to be present in a space in a terminal box, an ample space for attachment of the power cables to the power cable connection terminals is secured. The switchover of windings from a delta connection to star connection and vice versa can be easily performed. Since positions and orientation of the leads are fixed at mounting portions of the terminal base, the inspection of the windings can be easily performed.