# US 2014/0196275 A1 · Method and device for manufacturing a laminated stator core

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- Number: US 2014/0196275 A1
- Document ID: US20140196275A1
- Status: Published application
- Kind: A1
- Application number: 14/154,597
- Filed: 2014-01-14
- Published: 2014-07-17
- Earliest claimed: 2013-01-14
- Assignees: ALSTOM Technology Ltd
- Applicants: ALSTOM Technology Ltd
- Inventors: Massimiliano VISINTIN; Walter Soehner
- Web page: https://patentgrep.com/patent/US20140196275A1

## CPC

- H02K 15/02: of stator or rotor bodies
- Y10T 29/49009: Dynamoelectric machine
- H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53})
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

The method for manufacturing a stator of an electric machine includes providing a lamination element extending over an annular sector, horizontally moving the lamination element towards a fitting zone, then angularly regulating the lamination element position, and connecting the lamination element to other lamination elements to define the stator.

## Claims

### Claim 1

A method for manufacturing a stator of an electric machine, comprising:
providing at least a lamination element extending over an annular sector,
horizontally moving the at least a lamination element towards a fitting zone, then
angularly regulating the position of at least a lamination element, and
connecting the at least a lamination element to other lamination elements to define the stator.

### Claim 2 (depends on 1)

The method according to claim 1, wherein when connecting the lamination elements, in a plane perpendicular to a stator longitudinal axis, a gap is provided between adjacent parts of the lamination elements.

### Claim 3 (depends on 2)

The method according to claim 2, further comprising providing an insulation in the gap.

### Claim 4 (depends on 1)

The method according to claim 1, further comprising before horizontally moving the at least a lamination element towards the fitting zone, one or more lamination elements are removed from an existing stator, then the at least a lamination element is moved towards the fitting zone and connected to the existing stator.

### Claim 5 (depends on 1)

The method according to claim 1, wherein the lamination elements have indentations that when the lamination elements are connected each other define stator slots, after angularly regulating the lamination element position and before fixing the lamination elements, the lamination elements are aligned, alignment is carried out with respect to the indentations.

### Claim 6 (depends on 5)

The method according to claim 5, wherein alignment is carried out by providing a template element in the indentations.

### Claim 7

A device for manufacturing a stator by stacking lamination elements, the device comprising:
a rail structure,
supports for the rail structure,
a dolly on the rail structure capable of traversing at least a portion of the rail structure;
a saddle connected to the dolly, the saddle being tailored to compliment an upper inner diameter on the at least a lamination element,
blocking elements for holding the at least a lamination element on the saddle, and
characterised by comprising a revolving support for the saddle, to angularly regulate the saddle position.

### Claim 8 (depends on 7)

The device according to claim 7, characterised in that the blocking elements are arranged to withhold the at least a lamination element preventing its separation from the saddle.

### Claim 9 (depends on 8)

The device according to claim 8, wherein the blocking elements are defined by clamps.