Invention Grant
- Patent Title: Ground ring and enclosure in an electric motor
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Application No.: US14200545Application Date: 2014-03-07
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Publication No.: US09917491B2Publication Date: 2018-03-13
- Inventor: Joel W. Northwall , Kenneth R. Theis , Timothy J. Druhe , David M. Lyle
- Applicant: Nidec Motor Corporation
- Applicant Address: US MO St. Louis
- Assignee: Nidec Motor Corporation
- Current Assignee: Nidec Motor Corporation
- Current Assignee Address: US MO St. Louis
- Agency: Maginot, Moore & Beck, LLP
- Main IPC: H02K5/136
- IPC: H02K5/136 ; H02K11/00 ; H02K11/40 ; H02K5/173 ; H01R39/12 ; H01R39/64

Abstract:
An enclosure for a ground ring includes an enclosure housing configured to accept a ground ring and hold the ground ring in a predetermined position around a shaft that is electrically connected to a drive shaft of an electric motor. The ground ring having a first opening for the drive shaft and the enclosure housing has a second opening for the drive shaft. The enclosure includes an attachment configured to hold the enclosure housing around the shaft to dissipate an electrical charge and to form a cavity that contains the ground ring and includes a predetermined gap between a perimeter of the second opening of the enclosure and a surface of the drive shaft.
Public/Granted literature
- US20150256054A1 Ground Ring And Enclosure In An Electric Motor Public/Granted day:2015-09-10
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