Method of making linear motor stator

• US 4,246,694 A
• Filed: 05/26/1978
• Issued: 01/27/1981
• Est. Priority Date: 05/14/1977
• Status: Expired due to Term

• Current Assignee: Kabel-Und Metallwerke Gutehoffnungshuette AG, Thyssen Industrie AG (Thyssenkrupp AG)
• Original Assignee: Kabel-Und Metallwerke Gutehoffnungshuette AG, Thyssen Industrie AG (Thyssenkrupp AG)
• Inventors: Breitenbach, Otto, Raschbichler, Hans-Georg, Boll, Jurgen, Uttenreuther, Josef
• Primary Examiner(s): Hall, Carl E.
• Application Number:
  US05/909,794
• Time in Patent Office: 977 Days
• Field of Search: 29/596, 29/598, 29/736, 29/732, 310/12, 310/13, 310/260, 310/42
• US Class Current: 29/596
• CPC Class Codes: H02K 15/0478 Wave windings, undulated windings when on diagonally wound hollow coils H02K15/0492
• CPC Class Codes: H02K 15/066 inserted perpendicularly to the axis of the slots or inter-polar channels
• 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 174/20 Stator
• CPC Class Codes: Y10T 29/49009 Dynamoelectric machine
• CPC Class Codes: Y10T 29/53161 including deforming means

Abstract

The stator of a linear motor is assembled by separately assembling the windings as a uniform configuration, using a dummy to place cables into requisite positions and tieing the resulting coil ends together by end elements. The dummy is of an endless belt variety and is used to assemble the stator winding configuration in endless type fashion. The resulting assembly is placed into the stator core or cores which have been placed along the contemplated track part along which the motor is to move a vehicle or the like, carrying the armature of the motor.

Claims

1. Method of making a stator for a linear motor, comprising the steps of:

providing a dummy which includes spacer blocks separated by parallel grooves, resembling in length and width respectively the length and width of grooves in a stator core;

using the dummy to establish windings by placing three different cables into the grooves, each in a meandering pattern, whereby each of the cables is placed into grooves separated from each other by respective two grooves, and each of the three cables being placed into different grooves, thereby forming loops as coil ends which overlap each other adjacent to the blocks;

tying the loops of the cables together;

removing the cables as placed and as tied into a uniform and coherent configuration, from the dummy and as being held together as the result of the tying step; and

placing the cables as removed into parallelly extending grooves of a stator core.

2. Method as in claim 1, using a dummy in which a plurality of spacer blocks are mounted on an endless belt or chain.

3. Method as in claim 1, wherein the loops of the cable are tied together by means of end elements.

4. Method of making a stator for a linear motor, comprising the steps of:

providing a series of parallel grooves being spaced corresponding to the spacing of grooves in a stator core, but not constituting the stator core grooves;

placing three different cables into the grooves as provided so that each groove as provided receives a section of one of the cables, and running each cable in a meandering pattern so that three sequential grooves each receive different ones of the three cables, thereby resulting in overlapping cable loops, each loop running from an end of one of the grooves as provided to an end of another one of the grooves as provided;

tying the overlapping ones of the cable loops together to establish a uniform and coherent configuration in order to permit subsequent placement of the parallel sections of the cable into the stator core grooves; and

placing the parallel sections of the cable into the stator core grooves as held together due to the tying step.