# US 2014/0151489 A1 · Apparatus and method for winding poles of cores for electric dynamo machines

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- Number: US 2014/0151489 A1
- Document ID: US20140151489A1
- Status: Published application
- Kind: A1
- Application number: 14/131,578
- Filed: 2012-07-10
- Published: 2014-06-05
- Earliest claimed: 2011-07-14
- Assignees: ATOP S.p.A.
- Inventors: Massimo Ponzio; Giovanni Manuelli
- Web page: https://patentgrep.com/patent/US20140151489A1

## CPC

- H01F 41/064: Winding non-flat conductive wires, e.g. rods, cables or cords
- H01F 41/082: Devices for guiding or positioning the winding material on the former
- H02K 15/095: by laying conductors around salient poles
- H02K 15/33: Connecting winding sections; Forming leads; Connecting leads to terminals
- H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53})

## Abstract

Apparatus and method for winding coils (B) of conductor wire (W) around respective poles (10c) 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 (10c) being wound; a second wire guide (36) is positioned and moved in a first slot (10a) adjacent to the pole (10c) being wound; a third wire guide (37) is positioned and moved in a second slot (10b) adjacent to the pole (10c) being wound. A termination member (80) is capable of achieving connection of the coil leads to termination structures (91) of the core (FIG. 5).

## Claims

### Claim 1

Apparatus for winding coils (B) of wire conductor (W) around respective poles (10c) of a core (10) of a dynamo electric machine component; the coils (B) having turns (SP,S), wherein a turn is formed of two opposite longitudinal stretches, each longitudinal stretch being deposited in a respective slot (10a,10b), and two stretches of a turn being each deposited adjacent a respective axial end (A) of the pole (10c); the apparatus comprising:
a wire dispenser arm (11) for rotating around the poles to dispense the wire (W) that forms the wire turns;
a first wire guide (32) positioned and moved during winding adjacent an axial end (A) of a pole (10c) being wound to form a coil;
a second wire guide (36) positioned and moved within a first slot (10a) adjacent to the pole (10c) being wound;
a third wire guide (37) positioned and moved within a second slot (10b) adjacent to the pole (10c) being wound;
a first support member (35) for supporting the first wire guide (32);
a second support member (23) for supporting the second wire guide (36) and the third wire guide (37);
first guide means (38) for guiding the second wire guide (36) along a respective axis of the first slot (10a), and wherein the first wire guide (38) is supported by the second support member (23);
second guide means (39) for guiding the third wire guide (37) along a respective axis of the second slot (10b), and the second wire guide (36) being supported by the second support member (23);
means for moving (18,26,50) the first support member (35) to move the first wire guide (32) along a movement axis (11′), the second wire guide (36) and the third wire guide (37) in a predetermined alignment with respect to each other and with the pole (10c) being wound, the second wire guide (36) and the third wire guide (37) being respectively moved along the first and the second guide means (38,39).

### Claim 2 (depends on 1)

Apparatus of claim 1 wherein the means for moving comprise means for connecting (40,41) the second wire guide (36) to the first support member (35) on a first side with respect to the movement axis (11′) and the third wire guide (37) to the first support member (35) on a second side with respect to the movement axis (11′).

### Claim 3 (depends on 1)

Apparatus of claim 1 wherein the first wire guide (32) moves along the movement axis (11′) parallel to the radial direction of the pole (10c); the second wire guide (36) moves along a path that is inclined to the movement axis (11′) and positioned on a first side (DX) of the movement axis (11′); and the third wire guide (37) moves along a path that is inclined to the movement axis (11′) and positioned on a second side (SX) with respect to the movement axis (11′).

### Claim 4 (depends on 1)

Apparatus of claim 1 wherein the means for moving comprises a first tubular member (18) that moves along the axis of rotation (11′) of the wire dispenser arm (11) and the wire (W) to be wound runs through the tubular member (18) to reach the wire dispenser arm (11).

### Claim 5 (depends on 4)

Apparatus of claim 4 further comprising a second tubular member (12) surrounding the first tubular member (18); the wire dispenser member (11) being fixed to the second tubular member (12) and the second tubular (12) member being rotated directly by the stator of an electric motor (15).

### Claim 6 (depends on 1)

Apparatus of claim 1 wherein the means for moving comprises a screw transmission (53,54) and a programmable drive (55) for moving the first support member (35) according to a pre-set movement function.

### Claim 7 (depends on 1)

Apparatus of claim 1 wherein the second support member (23) is maintained stationary around the axis of rotation (11′) of the wire dispenser member (11) by a belt transmission (26), or by a gear transmission, the transmission being capable of rotating a shaft (29) assembled eccentric and integral to the wire dispenser arm (11).

### Claim 8 (depends on 1)

Apparatus of claim 1 further comprising a termination member (80) for connection of coil leads to termination structure (91) of the core (10); transmission means (83,88) for transmitting motion to the termination member (80) from the first support member (35); and the termination member (80) being supported and guided by the second support member (23) for the motion.

### Claim 9 (depends on 8)

Apparatus of claim 8 wherein the transmission means (83,88) inverts the direction of motion transmitted by the first support member (35).

### Claim 10 (depends on 8)

Apparatus of claim 8 wherein the first guide member (32) is provided with a passage (81) where the termination member (80) moves to be positioned at the termination structure (91) of the core (10).

### Claim 11 (depends on 9)

Apparatus of claim 9 wherein first support member (35) comprises a seat (95) for receiving a portion (83′) of the transmission means (83,88).

### Claim 12

Method for winding coils (B) of wire conductor (W) around respective poles (10c) of a core (10) of a dynamo electric machine component; the coils (B) having turns (Sp,S), wherein a turn is formed of two opposite longitudinal stretches, each longitudinal stretch being deposited in a respective slot (10a,10b), and two stretches of the turn are each deposited adjacent a respective axial end (A) of the pole (10c); the method comprising the steps of:
forming the wire turns of a coil (B) using a wire dispenser arm (11) rotating around the poles to dispense the wire (W);
positioning and moving a first wire guide (32) during winding adjacent an axial end (A) of a pole (10c) being wound;
positioning and moving a second wire guide (36) within a first slot (10a) adjacent to the pole (10c) being wound;
positioning and moving a third wire guide (37) positioned within a second slot (10b) adjacent to the pole (10c) being wound;
supporting the first wire guide (32) using a first support member (35);
supporting the second wire guide (36) and the third wire guide (37) using a second support member (23);
guiding the second wire guide (36) along a respective axis of the first slot (10a) using first guide means (38) supported by the second support member (23);
guiding the third wire guide (37) along a respective axis of the second slot (10b) using second guide means (39) supported by the second support member (23);
moving (18,26,50) the first support member (35) to move the first wire guide (32) along a movement axis (11′), the second wire guide (36) and the third wire guide (37) in a predetermined alignment with respect to each other and with the pole (10c) being wound, and moving the second wire guide (36) and the third wire guide (37) respectively along the first and the second guide means (38,39).

### Claim 13 (depends on 12)

Method of claim 12 further comprising connecting the second wire guide (36) to the first support member (35) on a first side with respect to the movement axis (11′) and the third wire guide (37) to the first support member (35) on a second side with respect to the movement axis (11′).

### Claim 14 (depends on 12)

Method of claim 12 further comprising moving the first wire guide (32) along a movement axis (11′) parallel to the radial direction of the pole (10c);
moving the second wire guide (36) along a path that is inclined to the movement axis (11′) and positioned on a first side (DX) of the movement axis (11′);
moving the third wire guide (37) along a path that is inclined to the movement axis (11′) and positioned on a second side (SX) with respect to the movement axis (11′).

### Claim 15 (depends on 12)

Method of claim 12 wherein the moving step comprises moving a first tubular member (18) along the axis of rotation of the wire dispenser arm (11) and causing the wire (W) to be wound to run through the tubular member (18) to reach the wire dispenser arm (11).

### Claim 16 (depends on 14)

Method of claim 14 further comprising a step of providing a second tubular member (12) surrounding the first tubular member (18); the wire dispenser member (11) being fixed to the second tubular member (12) and the second tubular (12).

### Claim 17 (depends on 12)

Method of claim 12 further comprising a step of moving the first support member (18) according to a predetermined movement function.

### Claim 18 (depends on 12)

Method of claim 12 further comprising a step of aligning the guiding edges (36a,37a,32a) of the first wire guide (36), the second wire guide (36) and the third wire guide (32) with the positions of the pole (10c) being wound as a function of the rotations of the wire dispenser arm (11).

### Claim 19 (depends on 12)

Method of claim 12 further comprising a step of providing a termination member (80) for connection of coil leads to a termination structure (91) of the core (10).

### Claim 20 (depends on 19)

Method of claim 19 further comprising a step of moving the termination member (80) towards the core (10) for connection of the wire leads by moving the first wire guide member (32) away from the core (10).

### Claim 21

Apparatus for winding coils (B) of wire conductor (W) around respective poles (10c) of a core (10) of a dynamo electric machine component; the coils (B) having turns (SP,S), wherein a turn is formed of two opposite longitudinal stretches, each longitudinal stretch being deposited in a respective slot (10a,10b), and two stretches of a turn being each deposited adjacent a respective axial end (A) of the pole (10c); the apparatus comprising:
a wire dispenser arm (11) for rotating around the poles to dispense the wire (W) that forms the wire turns;
a first wire guide (32) positioned and moved during winding adjacent an axial end (A) of a pole (10c) being wound to form a coil;
a second wire guide (36) positioned and moved within a first slot (10a) adjacent to the pole (10c) being wound;
a third wire guide (37) positioned and moved within a second slot (10b) adjacent to the pole (10c) being wound;
a termination member (80) moveable within a passage of the first wire guide (32).
