Patent · US Active

Inner rotor motor with hollow wiring tube inside rotor shaft

US11183903B2 · kind B2 · utility

1Cited by

3References

20Claims

0Family size

Assignee

Nidec Motor Corporation · US

Inventors

Matthew Allen · Enfield, US
Aaron D. Davies · Portland, US
Daniel J. Suda · Chesterfield, US
Philip S. Johnson · Granite City, US
Michael W. Major · Mandeville, US

Key dates

Filing date	Nov 22, 2019
Grant date	Nov 23, 2021
Priority date	—
Expiry date	Mar 25, 2040

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21V33/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An apparatus includes an inner rotor motor and a stationary wiring conduit. The inner rotor motor includes a stator and a rotor spaced at least in part radially inside the stator. The rotor is rotatable relative to the stator about an axis. The rotor includes a rotatable shaft that presents a shaft bore extending axially therethrough. The stationary wiring conduit extends through the shaft bore and is fixed relative to the motor housing. The shaft bore rotatably receives the wiring conduit, such that the wiring conduit is permitted to remain stationary as the shaft rotates.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.