Process for repairing the winding of an electrical linear drive

• US 5,327,637 A
• Filed: 01/28/1993
• Issued: 07/12/1994
• Est. Priority Date: 02/07/1992
• Status: Expired due to Term

• Current Assignee: kabelmetal electro GmbH (Quattroduedue SpA)
• Original Assignee: kabelmetal electro GmbH (Quattroduedue SpA)
• Inventors: Breitenbach, Otto, Mollmann, Hermann
• Primary Examiner(s): Hall, Carl E.
• Application Number:
  US08/010,641
• Time in Patent Office: 530 Days
• Field of Search: 29/596, 29/598, 29/402.11, 29/402.12, 29/402.13, 310/12, 310/13, 310/27, 310/42
• US Class Current: 29/596
• CPC Class Codes: B60L 13/006 Electric propulsion adapted for monorail vehicles, suspension vehicles or rack railways B60L13/03 takes precedence
• CPC Class Codes: B60L 2200/26 Rail vehicles
• CPC Class Codes: H02K 15/0006 Disassembling, repairing or modifying dynamo-electric machines repairing of cooling fluid boxes H02K15/0093
• CPC Class Codes: H02K 2203/15 Machines characterised by cable windings, e.g. high-voltage cables, ribbon cables
• CPC Class Codes: H02K 41/02 Linear motors; Sectional motors
• CPC Class Codes: Y10S 174/14 having a particular cable application, e.g. winding
• CPC Class Codes: Y10S 174/22 Winding per se
• CPC Class Codes: Y10T 29/49009 Dynamoelectric machine
• CPC Class Codes: Y10T 29/49735 Mechanically attaching preform with separate fastener

Abstract

A process for repairing the winding of an electrical linear drive having three winding strands formed of electrical cables which meander in the grooves of an inductor belonging to an elongated stator. To correct a defect in one of the winding strands, the respective cable is first removed from the grooves of the inductor in the defective area. Then, a section of predetermined length of the cable containing the defect is cut from the winding strand. The removed section of the cable is then replaced by a length of prefabricated cable of suitable length and shape, and the repaired cable is then reattached to the grooves of the inductor.

Claims

1. A process for repairing a winding of an electrical linear drive having three winding strands formed of electrical cables, one of which has a defect therein, that meander in grooves formed in an inductor belonging to an elongated stator, comprising the steps of:

removing a portion of the one cable containing the defect from the grooves of the inductor;

cutting a section of predetermined length of the one cable containing the defect from the winding strand;

replacing the cut section of the one cable with a prefabricated cable of suitable length and shape; and

attaching the one cable and the prefabricated cable to the grooves of the inductor.

2. A process according to claim 1, wherein the prefabricated cable has plug-in bushings at both ends.

3. A process according to claim 2, further including the step of:

removing insulation surrounding end portions of the one cable, which remain in the winding strand after the cutting step, from a conductor of the one cable in steps to form plugs which are then inserted into the plug-in bushings.

4. A process according to claim 2, wherein, during the attaching step, the plug-in bushings are arranged in parallel to the inductor on an outside portion thereof.

5. A process according to claim 1, wherein the prefabricated cable is bent to conform with the cut section of the one cable.