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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 9748817 B1

PDFFull Text
Date of Patent:
Aug. 29, 2017

Filed:

Apr. 17, 2015

Gear motor assembly

Applicant:

Johnson Electric S.a., Murten, CH;

Inventors:

Wei Xing Mao, Rochester Hills, MI (US);

Fan Ouyang, Shenzhen, CN;

Xiao Liang Yue, Shenzhen, CN;

Assignee:

JOHNSON ELECTRIC S.A., Murten, CH;

Attorney:

Muncy, Geissler, Olds & Lowe, P.C.

Primary Examiner:

Alex W Mok

Int. Cl.
CPC ...
H02K 7/116 (2006.01); H02K 15/08 (2006.01); B60J 1/17 (2006.01); H02K 15/02 (2006.01); H02K 7/08 (2006.01); E05F 15/697 (2015.01); H02K 5/14 (2006.01); H02K 5/22 (2006.01); H02K 13/00 (2006.01); H02K 15/14 (2006.01);
U.S. Cl.
CPC ...
H02K 7/1166 (2013.01); H02K 5/148 (2013.01); H02K 5/225 (2013.01); H02K 7/081 (2013.01); H02K 13/006 (2013.01); H02K 15/02 (2013.01); H02K 15/08 (2013.01); H02K 15/14 (2013.01); E05F 15/697 (2015.01);
Abstract

A gear motor assembly includes a motor and a gearbox connected together. The motor includes a stator and a rotor. The stator has a housing, magnets attached to the housing, and brushes. The rotor includes a shaft with a rotor core, a commutator, a sleeve, a bushing and a worm mounted thereon. The bushing is slidably located between the commutator and worm. The sleeve is located between the commutator and the bushing. The rotor is balanced with the worm fix to the shaft. The gearbox includes a casing having an opening, and a worm gear received in the casing. The brushes of the motor are mounted in the casing. The shaft has a first end that extends into the gearbox. The bushing is fixed in the casing via a bushing seat.

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