US 8,943,673 B2Granted

Method for manufacturing a drive unit

AssigneeSew-Eurodrive GmbH & Co. KG

InventorsJosef Schmidt, Bernhard Köhler, Thomas Leichter, Jochen Mahlein

Life of this patent

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Abstract

In compact drive, spiroid gear unit, and method for manufacturing a drive unit that includes at least an electric motor, a brake, a gear unit, and a frequency converter, the output shaft of the gear unit and the rotor shaft are positioned in parallel to each other, and the shaft-center distance is determined by at least one gear stage. The first gear stage includes a first toothed member connected to the rotor shaft, and a second toothed member, which engages with the first toothed member and is connected to an intermediate shaft, the brake, including at least a brake-rotor shaft, being integrated in the housing of the compact drive, the brake-rotor shaft being parallel to the rotor shaft, and the brake-rotor shaft being connected to a toothed member, which engages with the second toothed member.

Claims13

Dependent claims

A method for manufacturing a drive unit that includes at least one electric motor and a central housing part, comprising:

initially machining the central housing part;
subsequently introducing a stator of the at least one electric motor into the central housing part and detachably connecting the stator to the central housing part;
and
housing, within the central housing part, the at least one electric motor in a compartment, a gear unit, an electronic circuit, and a brake having a brake-rotor shaft parallel to a rotor shaft of the at least one electric motor;
sealing the compartment of the at least one electric motor with respect to an external environment and not sealing an electronics compartment containing the electronic circuit with respect to the compartment of the at least one electric motor;
wherein the rotor shaft of the at least one electric motor is parallel to an output shaft of the gear unit, the output shaft being accessible from an outside of the central housing part.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/299,900Filed 18 Nov 2011 · division
Priority: DE 103 53 22613 Nov 2003
Published: US 2012/0060358 A115 Mar 2012
Granted: 3 Feb 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification24 codes

H02K 15/14
Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines: casings; Enclosures;…
F16H 1/125
With non-parallel axes: comprising spiral gears only
F16H 1/20
Without gears having orbital motion: involving more than two intermeshing members
H02K 1/185
Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures: to outer stators

Family

PCT/EP2004/012800Parent of this continuation · filed 11 Nov 2004
Application12/938,230Parent of this division · filed 2 Nov 2010
US 2012/0060358 A1Pre-grant publication · published 15 Mar 2012
US 8,079,289 B2Parent of this division
Application10/577,588Parent of this continuation
US 7,846,054 B2Parent of this continuation
Application12/938,230Parent of this continuation
US 2007/0007055 A1Published application
US 2011/0041637 A1Published application
US 8,943,673 B2This patent

From the US filing history. Foreign family members aren’t listed.