Apparatus and method for winding poles of cores for electric dynamo machines

Patent metadata

Field	Value
Publication number	US-9418787-B2
Application number	US-201214131578-A
Country	US
Kind code	B2
Filing date	Jul 10, 2012
Priority date	Jul 14, 2011
Publication date	Aug 16, 2016
Grant date	Aug 16, 2016

Abstract

Apparatus and method for winding coils (B) of conductor wire (W) around respective poles ( 10 c ) of a core ( 10 ) of a component of a electric dynamo machine, wherein a dispenser arm ( 11 ) rotates around the poles to deliver the wire (W) to form wire turns; a first wire guide ( 32 ) is positioned and moved during winding adjacent to an axial end (A) of a pole ( 10 c ) being wound; a second wire guide ( 36 ) is positioned and moved in a first slot ( 10 a ) adjacent to the pole ( 10 c ) being wound; a third wire guide ( 37 ) is positioned and moved in a second slot ( 10 b ) adjacent to the pole ( 10 c ) being wound. A termination member ( 80 ) is capable of achieving connection of the coil leads to termination structures ( 91 ) of the core (FIG. 5 ).

First claim

The invention claimed is:

1. Apparatus for winding coils of wire conductor around respective poles of a core of a dynamo electric machine component; the coils having turns, wherein a turn is formed of two opposite longitudinal stretches, each longitudinal stretch being deposited in a respective slot, and two stretches of a turn being each deposited adjacent a respective axial end of the pole; the apparatus comprising:
a wire dispenser arm for rotating around the poles to dispense the wire that forms the wire turns;
a first wire guide positioned and moved during winding adjacent an axial end of a pole being wound to form a coil;
a second wire guide positioned and moved within a first slot adjacent to the pole being wound;
a third wire guide positioned and moved within a second slot adjacent to the pole being wound;
a first support member for supporting the first wire guide;
a second support member for supporting the second wire guide and the third wire guide;
first guide means for guiding the second wire guide along a respective axis of the first slot, and wherein the first wire guide is supported by the second support member;
second guide means for guiding the third wire guide along a respective axis of the second slot, and the second wire guide being supported by the second support member;
means for moving the first support member to move the first wire guide along a movement axis, the second wire guide and the third wire guide in a predetermined alignment with respect to each other and with the pole being wound, the second wire guide and the third wire guide being respectively moved along the first and the second guide means.

2. Apparatus of claim 1 wherein the means for moving comprise means for connecting the second wire guide to the first support member on a first side with respect to the movement axis and the third wire guide to the first support member on a second side with respect to the movement axis.

3. Apparatus of claim 1 wherein the first wire guide moves along the movement axis parallel to the radial direction of the pole; the second wire guide moves along a path that is inclined to the movement axis and positioned on a first side of the movement axis; and the third wire guide moves along a path that is inclined to the movement axis and positioned on a second side with respect to the movement axis.

4. Apparatus of claim 1 wherein the means for moving comprises a first tubular member that moves along the axis of rotation of the wire dispenser arm and the wire to be wound runs through the tubular member to reach the wire dispenser arm.

5. Apparatus of claim 4 further comprising a second tubular member surrounding the first tubular member; the wire dispenser arm being fixed to the second tubular member and the second tubular member being rotated directly by a stator of an electric motor.

6. Apparatus of claim 1 wherein the means for moving comprises a screw transmission and a programmable drive for moving the first support member according to a pre-set movement function.

7. Apparatus of claim 1 wherein the second support member is maintained stationary around the axis of rotation of the wire dispenser arm by a belt transmission, or by a gear transmission, the transmission being capable of rotating a shaft assembled eccentric and integral to the wire dispenser arm.

8. Apparatus of claim 1 further comprising a termination member for connection of coil leads to termination structure of the core;
transmission means for transmitting motion to the termination member from the first support member; and the termination member being supported and guided by the second support member for the motion.

9. Apparatus of claim 8 wherein the transmission means inverts the direction of motion transmitted by the first support member.

10. Apparatus of claim 9 wherein first support member comprises a seat for receiving a portion of the transmission means.

11. Apparatus of claim 8 wherein the first guide member is provided with a passage where the termination member moves to be positioned at the termination structure of the core.

12. Method for winding coils of wire conductor around respective poles of a core of a dynamo electric machine component; the coils having turns, wherein a turn is formed of two opposite longitudinal stretches, each longitudinal stretch being deposited in a respective slot, and two stretches of the turn are each deposited adjacent a respective axial end of the pole; the method comprising the steps of:
forming the wire turns of a coil using a wire dispenser arm rotating around the poles to dispense the wire;
positioning and moving a first wire guide during winding adjacent an axial end of a pole being wound;
positioning and moving a second wire guide within a first slot adjacent to the pole being wound;
positioning and moving a third wire guide positioned within a second slot adjacent to the pole being wound;
supporting the first wire guide using a first support member;
supporting the second wire guide and the third wire guide using a second support member;
guiding the second wire guide along a respective axis of the first slot using first guide means supported by the second support member;
guiding the third wire guide along a respective axis of the second slot using second guide means supported by the second support member;
moving the first support member to move the first wire guide along a movement axis, the second wire guide and the third wire guide in a predetermined alignment with respect to each other and with the pole being wound, and moving the second wire guide and the third wire guide respectively along the first and the second guide means.

13. Method of claim 12 further comprising connecting the second wire guide to the first support member on a first side with respect to the movement axis and the third wire guide to the first support member on a second side with respect to the movement axis.

14. Method of claim 12 further comprising moving the first wire guide along the movement axis parallel to the radial direction of the pole;
moving the second wire guide along a path that is inclined to the movement axis and positioned on a fist side of the movement axis;
moving the third wire guide along a path that is inclined to the movement axis and positioned on a second side with respect to the movement axis.

15. Method of claim 14 further comprising a step of providing a second tubular member surrounding the first tubular member; the wire dispenser arm being fixed to the first tubular member and the second tubular member.

16. Method of claim 12 wherein the moving step comprises moving a first tubular member along the axis of rotation of the wire dispenser arm and causing the wire to be wound to run through the tubular member to reach the wire dispenser arm.

17. Method of claim 12 further comprising a step of moving the first support member according to a predetermined movement function.

18. Method of claim 12 further comprising a step of aligning guiding edges of the first wire guide, the second wire guide and the third wire guide with the positions of the pole being wound as a function of the rotations of the wire dispenser arm.

19. Method of claim 12 further comprising a step of providing a termination member for connection of coil leads to a termination structure of the core.

20. Method of claim 19 further comprising a step of moving the termination member towards the core for connection of the wire leads by moving the first wire guide member away from the core.

Assignees

• Ponzio Massimo
• Manuelli Giovanni
• Atop Spa

Inventors

• Ponzio Massimo
• Manuelli Giovanni

Classifications

• H02K15/33

  Connecting winding sections; Forming leads; Connecting leads to terminals · CPC title

• H01F41/064 Primary

  Winding non-flat conductive wires, e.g. rods, cables or cords · CPC title

• H02K15/0075

  Electricity · mapped topic

• H01F41/0612 Primary

  Electricity · mapped topic

• H02K15/095 Primary

  by laying conductors around salient poles · CPC title