Methods for winding and terminating dynamo electric machine cores

• US 9,130,436 B2
• Filed: 11/14/2013
• Issued: 09/08/2015
• Est. Priority Date: 04/29/2009
• Status: Active Grant

• Current Assignee: ATOP SpA
• Original Assignee: ATOP SpA
• Inventors: Ponzio, Massimo, Mugelli, Maurizio
• Primary Examiner(s): TRINH, MINH N
• Application Number:
  US14/080,083
• Publication Number:
  US 20140096372A1
• Time in Patent Office: 663 Days
• Field of Search: 29596-598, 29732-736, 242/437.2, 242/440.1, 242/445.1
• US Class Current: 1/1
• CPC Class Codes: H02K 15/0068 Connecting winding sections; Forming leads; Connecting leads to terminals
• CPC Class Codes: H02K 15/095 by laying conductors around salient poles
• CPC Class Codes: Y10T 29/49009 Dynamoelectric machine
• CPC Class Codes: Y10T 29/49071 by winding or coiling
• CPC Class Codes: Y10T 29/49073 by assembling coil and core
• CPC Class Codes: Y10T 29/49174 Assembling terminal to elongated conductor
• CPC Class Codes: Y10T 29/53143 Motor or generator
• CPC Class Codes: Y10T 29/53161 including deforming means

Abstract

A method for terminating and winding coils of a core of a dynamo electric machine. The coils being formed from at least an electric wire and the core having a longitudinal axis. The coils are wound by relatively moving a wire dispenser with respect to a core with relative motions of translation and rotation; at least a stretch of wire extends from the coil and the stretch of wire is provided with a portion for a termination connection to a termination structure of the core such as a tang. The method avoids waste cut wire in the apparatus. The core is provided with a groove at an end to receive at least a wire in the path of the wire for the termination of the coils. The apparatus comprises a wire deflector positioned adjacent the end of the core, where the groove is located, in order to intercept and align the wire with the groove.

Claims

1. A method for winding and termination of coils wound with at least one electric wire on a core of a dynamo electric machine;

the core having a longitudinal axis and a groove at an end of the core for receiving at least a wire on a termination path that extends around the longitudinal axis;

said method comprising;

translating a wire dispenser with respect to the core during winding or termination of the coils;

wherein the wire dispenser comprises a holding structure for passage of the wire and a wire exit from where the wire reaches the core;

translating the holding structure along the core for positioning the wire exit adjacent the end of the core where the groove is located;

rotating the core around a rotation axis for winding the core; and

intercepting and aligning the wire with the groove using a wire deflector positioned adjacent the end of the core where the groove is located.

2. The method of claim 1, further comprising supporting the core with a core support, supporting the deflector with a deflector support, and housing the deflector support in a portion of the core support.

3. The method of claim 1, further comprising displacing the deflector in a radial direction of the core to intercept and align the wire with the groove.

4. The method of claim 1, wherein translating the holding structure along the core comprises translating the holding structure through the core.

5. The method of claim 1, wherein translating the holding structure along the core comprises translating the holding structure outside of the core.

6. The method of claim 1, further comprising rotating the core around the rotation axis for winding the intercepted and aligned wire in the groove.

7. The method of claim 1, further comprising rotating the core around the rotation axis to reach an angular position of the core where the wire can exit the groove and pass through a passage to a pole to be wound.

8. The method of claim 1, further comprising displacing the deflector in a direction along the longitudinal axis of the core to intercept and align the wire with the groove.

9. The method of claim 1, further comprising displacing the deflector in both a radial direction of the core and a direction along the longitudinal axis of the core to intercept and align the wire with the groove.