Rotating electrical machine
3 Assignments
0 Petitions
Accused Products
Abstract
In a rotating electrical machine a stator winding is formed of flexible cables inserted in an open stator in the stator core. The stator slots extend from a radially outermost yoke part of the stator core radially inwards towards the rotor, the stator slots being separated by teeth. The stator slots are shaped as double slots with shoulders arranged in the slot walls such that each cable in the winding is secured between the previous cable in the stator slot and, seen from the slot opening, the next shoulder situated outside that particular cable. In a method for manufacturing such a winding the first cable is inserted through the opening of the stator slot and pressed firmly into a cable slot arranged at the bottom of the stator slot and designed to retain the cable when it has been pressed in. A second cable is inserted through the opening of the stator slot and secured between this first cable and an opposing securing shoulder in the wall of the slot, after which a third cable is inserted through the opening in the stator slot and secured between the second cable and a securing shoulder in the slot wall opposite the second cable, and so on.
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Citations
32 Claims
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1-16. -16. Cancelled
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17. A rotating electrical machine comprising:
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a stator winding formed of flexible cable inserted in stator slots in a stator core of the stator, which stator slots extend from a radially outermost yoke part of the stator core radially inwards towards the rotor, and which stator slots are separated by teeth, wherein said stator slots are shaped as open double slots with shoulders arranged in slot walls such that each cable in the stator winding is secured between a previous cable in the stator slot and, seen from a slot opening, a next shoulder situated outside the previous cable. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A method for manufacturing a stator winding formed of flexible cable inserted in an open stator slot in a stator core of the stator of a rotating electrical machine, comprising:
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inserting a first cable through an opening of the stator slot and pressed firmly into a cable slot arranged at a bottom of the stator slot and configured to retain the cable when the cable has been pressed in;
inserting a second cable through the opening of the stator slot and secured between said first cable and an opposing securing shoulder in a wall of the stator slot;
inserting a third cable through the opening in the stator slot and secured between said second cable and a securing shoulder in the slot wall opposite the second cable.
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Specification