US 7,030,526 B2Granted

Integrated drive motor/differential/inverter unit with improved housing for a vehicle

AssigneeNissan Motor Co., Ltd.

InventorsMasahiro Tsukamoto, Yuki Nakajima, Toshiro Shinohara, Hiroyuki Kaneko, Yasuhiko Kitajima, Makoto Iwashima, Akihiro Hanamura, Kouichirou Yonekura, Tadayuki Hatsuda, Masakazu Kobayashi, Yutaro Kaneko

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Abstract

An integrated drive motor unit which is integrally constituted of a motor, an inverter and a reducer differential unit arranged in a row, and a frame member. The reducer differential unit is connected to an output shaft of the motor, and distributes torque of the motor to a pair of axles, one of which passes through the inverter. The frame member constitutes a part of the motor and a part of the reducer differential unit, and has a portion surrounding the axle passing through the inverter. The inverter is disposed outside the frame member.

Claims8

Dependent claims

An integrated drive motor unit comprising:

a motor having an output shaft;
an inverter for feeding power to the motor;
a reducer differential unit connected to the output shaft, which distributes torque of the motor to a pair of axles, one of the axles passing through the inverter;
and
a frame member for allowing the motor, the inverter and the reducer differential unit to be integrated, the frame member constituting a part of the motor and a part of the reducer differential unit, and including a flange of the motor formed to have on a central portion thereof a small diameter tubular portion extending axially therefrom and rotatably supporting the axle passing through the inverter, wherein
the inverter is disposed outside the small diameter tubular portion.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 10/700,645Filed 5 Nov 2003
Priority: JP 2002-3534785 Dec 2002
Published: US 2004/0108778 A110 Jun 2004
Granted: 18 Apr 2006
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H02K 7/116
Structural association with clutches, brakes, gears, pulleys or mechanical starters: with gears
B60L 15/007
Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles: physical arrangements or structures of…
H02K 11/33
Structural association with control circuits or drive circuits: drive circuits, e.g. power electronics
B60K 1/00
Arrangement or mounting of electrical propulsion units