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US6370760: Process for fixing a rotor winding

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Filing Information

Inventor(s) Klaus Maldener · Martin Kiefer · Helmut Aesche · Uwe Hammer ·
Assignee(s) Robert Bosch, GmbH ·
Attorney/Agent(s) Ronald E. Greigg ·
Primary Examiner Peter Vo ·
Assistant Examiner A. Dexter Tugbang ·
Application Number US9403723
Filing date 12/14/1999
PCT 371 date 12/14/1999
Issue date 04/16/2002
Predicted expiration date 12/14/2019
U.S. Classifications 295/96  · 310/235  · 296/6  · 310/43  · 295/98  · 264/272.2  · 264/230  · 295/97  ·
International Classifications --
Kind CodeB1
International Classifications 29596 · 29597 · 29598 · 29606 · 29417 · 310 43 · 310234 · 310233 · 310235 · 310236 · 26427219 · 2642722 · 264230 · 264266 · 264342 R ·
PCT Application Number WO20PCTDE9803666 - 12/14/1998
PCT Publication Number WO199944271 - 09/02/1999
Foreign Priority DE19808069 - 02/26/1998 ·
6 Claims, 2 Drawings


Abstract

A process for fixing a rotor winding, which is hooked to connection lugs of commutator lamellas of a commutator in the vicinity between the connection lugs and winding heads that are embodied on the end face of the rotor body. In order to simplify the process, a shrink sleeve is placed over the commutator of the completed rotor and is slid onto the winding heads until the connection lugs and the connection wires of the rotor winding that extend to the connection lugs are covered. The mechanically fixed shrink sleeve is homogeneously heated with hot air while the rotor rotates so that after cooling, the shrink sleeve shrinks onto the connection lugs and connection wires as well as onto parts of the winding heads.

Independent Claims | See all claims (6)

  1. 1. A process for fixing a rotor winding (15), which is hooked to connection lugs (122) of commutator lamellas (121) of a commutator (12) and is contained in a rotor body (11) that is non-rotatably supported with the commutator (12) on a common rotor shaft (13), in a vicinity between the connection lugs (122) and winding heads (151) that are embodied on an end face of the rotor body (11), the process comprising: placing a shrink sleeve (16) over the commutator (12) of a completed rotor (10) with the rotor body (11), commutator (12), and rotor winding (15); sliding the shrink sleeve onto the winding heads (151) until the connection lugs (122) and connection wires (152) of the rotor winding (15) that extend to the connection lugs (122) are covered; and homogeneously heating the shrink sleeve (16) with hot air while the rotor (10) rotates to mechanically fix the shrink sleeve in place.

References Cited

U.S. Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
US3129349* GEN MOTORS CORP Ervin Apr 1964
US3697792* KANGO ELECTRIC HAMMERS LTD Roue Oct 1972
US3848332* BERGQUIST CO INC Bergquist Nov 1974
US4662045* Grodum May 1987
US4852252* AMP Incorporated Ayer Aug 1989
US5937521* Seaward International, Inc. March et al. Aug 1999

Foreign Patent Documents

Document NumberAssigneesInventorsIssue/Pub Date
DE2912684*BOSCH GMBH ROBERTFeb 1980
FR2341978*CEM COMP ELECTRO MECSep 1977
JP60141149*MATSUSHITA ELECTRIC IND CO LTDJul 1985
* cited by examiner

Referenced By

The current document is not referenced by other documents.

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