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Machine translation
1. (WO1979001024) STATOR ENVELOPE FOR AIR-COOLED ELECTRIC MACHINE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/001024    International Application No.:    PCT/CH1979/000063
Publication Date: 29.11.1979 International Filing Date: 01.05.1979
IPC:
F16B 4/00 (2006.01), H02K 15/14 (2006.01), H02K 5/18 (2006.01)
Applicants:
Inventors:
Priority Data:
4860/78 03.05.1978 CH
Title (EN) STATOR ENVELOPE FOR AIR-COOLED ELECTRIC MACHINE
(FR) ENVELOPPE STATORIQUE POUR MACHINE ELECTRIQUE REFROIDIE PAR AIR
Abstract: front page image
(EN)The stator envelope (1) for air-cooled electric machine comprises a sheet iron barrel (1) designed for being applied onto the stator core (2) and so shaped as to have a plurality of cooling fins (6) extending axially, projecting radially and spaced from each other in a peripheral direction. Furthermore, the inner surface (3) of the sheet iron barrel (1) has a convex shape in the axial direction and the inner diameters of the edges at both ends of the barrel correspond, preferably, to the outer diameter of the stator core (2). Moreover, the sheet iron barrel (1) has at both ends reinforcing elements (16) for preventing the diameters of the edges from increasing when the stator core is pressed inside the barrel. The arrangement is such that, during pressing, the inner surface (3) of the parts of the barrel forming the stator envelope (1) and between the cooling blades (6), is firmly and uniformly applied along all of its length on the stator core (2) in a manner such that the stator envelope (1) and core (2) form a unit block, at least as regards to heat transmission and mechanical forces.
(FR)L"enveloppe statorique (1) pour machine refroidie par air est constituee par un manteau en tole (1) destine a etre applique sur le noyau statorique (2) et conforme de maniere a presenter une pluralite d"ailettes de refroidissement (6) s"etendant axialement, faisant saillie radialement et espacees les unes des autres en direction peripherique. De plus, la surface interieure (3) du manteau en tole (1) presente en direction axiale une forme convexe et les diametres interieurs des bords situes aux deux extremites du manteau correspondant de preference au diametre exterieur du noyau statorique (2). En outre, le manteau en tole (1) presente a ses deux extremites des elements de renforcement (16) destines a empecher un agrandissement des diametres des bords lorsque le noyau statorique est presse a l"interieur du manteau. L"agencement est tel que, lors du pressage, la surface interieure (3) des parties du manteau formant l"enveloppe statorique (1), qui sont entre les ailettes de refroidissement (6), soit appliquee fermement et uniformement sur toute son etendue sur le noyau statorique (2) de telle maniere que l"enveloppe (1) et le noyau (2) statoriques forment approximativement un bloc unitaire au moins du point de vue de la transmission de la chaleur et des forces mecaniques.
Designated States:
Publication Language: German (DE)
Filing Language: German (DE)