Arrangement for cooling of an electrical machine

Details Arrangement for cooling of an electrical machine Arrangement for cooling of an electrical machine

H - Electricity

02

K

H02K 3/24 (2006.01) H02K 9/06 (2006.01) H02K 9/18 (2006.01)

Patent

CA 2683459

The electrical machine (G) comprises a rotor (R) and a stator (S), while an air-gap (AG) is between the rotor (R) and the stator (S). The stator (S) comprises a number of stacked laminate-plates (L). The laminate-plates (L) show on a first side, which is headed to the air-gap (AG), a number of slots to carry metal-windings of a stator-coil. The laminate-plates (L) are positioned and fixed by means for structural support and by end-plates (LP1, LP2) in relation to a central-part (IP) of the stator (S). A joint cavity is formed by the end- plates (EP1, EP2), the central-part of the stator (S) and an internal surface of the laminate-plates. The internal surface is defined by a second side of the laminate-plates (L), while the second side is opposite to the first side. The cavity is coupled with an air-cooling-arrangement (F1,F11, HX), which is arranged and used to circulate a gase- ous medium for cooling purposes from the cavity to the air- gap (AG) and the laminate-plates (L) back into the cavity.

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