SU383161A1 - ELECTRIC MACHINE STATOR - Google Patents

Description

one

In the known stator of an electric machine, which contains a magnetic core and a winding placed in its grooves And made of separate rods, which have ventilation tubes installed with a counter-passage of a cooling substance in a series of sprawled tubes, there is a large temperature difference between the most heated and cold zones. rods. For intensification of cooling in the proposed stator, the vent tubes have an effective transverse partition in the middle part of the groove, each pair of adjacent tubes being hydraulically interconnected through through holes made in the matching walls of the tubes on both sides of the porenechnogo partition.

The drawing shows the slot of the magnetic circuit, a longitudinal section (along the axis of the ventilation ducts) and a cross section.

Between the rod conductors, but the height of the entire groove, there are ventilation tubes, which are divided IB by the middle of the slot portion of COMPOSITE and partition walls 2, thus forming ventilation channels 5-8 and Za-8a. Walls of adjacent pairs of ducts 1v (tubes) 3, 4; 5, 6; 7, 8, as well as 4a; 5a, 6a; 7a, 8a have through holes b, b through which they are hydraulically connected.

Ohlan giving substance enters the channels (tubes) 3,5,7 Over, 5a, 7a, reaches the middle of the groove part, passes through holes b, b and returns through channels 4, 6, 8, and 4a, 6a, 8a. In this case, the cooling substance in the tubes 3, 5, 7 and 3a, 5a, 7a cools the incoming coolant in the pipes 4, 6, 8 and 4a, 6a, 3a, and the winding will have a more uniform heating temperature along the entire length.

Subject invention

A stator of an electrical mask containing a magnetic core and a winding placed in its grooves and made of separate rods between which are installed ventilation tubes with a counter flow of cooling substance in a number of arranged tubes, characterized in that, in order to intensify the cooling, said vent tubes have a solid

a transverse partition in the middle part of the groove, each pair of adjacent tubes being hydraulically interconnected by means of through holes made in the adjacent walls of the tubes on either side of the transverse partition.