Nidec Motor Corporation

Matthew D Allen

Michael W Major

Philip Stephen Johnson

L Ranney Dohogne

William R Lewis

Marc J Corcoran

William D Moore

Joshua M Biro

John M Tucker

Richard J Fadler

Daniel J Suda

Michael E Moore

Aaron Davies

Philip S Johnson

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.

Inner rotor motor with hollow wiring tube inside rotor shaft

An electric fan includes a plurality of blades and an electric motor for rotating the blades. The electric motor includes a stator and a rotor rotatable relative to the stator about an axis. The rotor includes a backing ring and a diecast rotor can. The can includes a non-machined sidewall that is diecast integrally as part of the rotor can. The sidewall extends about the axis. The rotor can is diecast in an overlying relationship with at least part of the backing ring, with the sidewall and backing ring being securely interengaged so as to restrict relative shifting therebetween.

Motor with backing ring diecast in rotor can

A blower motor assembly includes a blower wheel and a motor. The blower wheel includes an integrally formed hub. The motor includes a shaft rotatable about an axis. The hub presents a radially inner hub surface that at least in part defines a hub opening. The inner hub surface defines an inner cross-sectional dimension. The shaft is axially received within the hub opening, such that the blower wheel is supported by the shaft for rotational movement. The shaft includes a toothed region defining a plurality of arcuately spaced apart teeth. Each of the teeth includes a cutting edge. The teeth present an outer cross-sectional dimension that is great than the inner cross-sectional dimension of the inner hub surface, such that the cutting edges of the teeth cut a plurality of grooves in the inner hub surface as the shaft is axially received in the hub opening.

Draft inducer blower wheel having improved shaft connection

A stator of an electric motor includes a core and a covering overmolded on the core. The mold for overmolding the covering on the core includes first and second cavity-defining portions and pluralities of first and second pins extending at least generally toward opposite ones of the cavity-defining portions. The cavity is configured to receive the core therein. The first pins and the second pins are configured to extend into the cavity when the mold is in the closed position to cooperatively at least in part secure the core in the cavity.

Stator with overmolded core and mold for producing same

An electric motor assembly includes a rotor, a stator, and a gear assembly. The gear assembly includes a drive gear, a ring gear, and an intermediate gear disposed between and engaging each of the drive gear and the ring gear. The gear assembly further includes a carrier supporting the intermediate gear and being fixed relative to the stator so as to be stationary relative thereto. The ring gear is rotatable relative to the carrier and the stator.

Motor assembly with compact gear drive

Growing community of inventors

St. Peters, MO, United States of America

Matthew D Allen