TH57005A - Stator for rotary electric machinery. - Google Patents

Abstract

DC60 (26/11/52) The stator for use in rotating electrical machines is constructed by arranging a predetermined number of stator units (2, 21) in the circumferential direction of the stator core (6) in the shape of a ring. The stator units are provided with magnetic segments (8) protruding inward in the radial direction of the stator core. The windings (5) are wound around the magnetic segments through insulating assemblies (4, 22). Each piece of the insulating assembly has a thickness (12, 23) slightly protruding opposite each other in the direction of the width of the magnetic segments, where the thickness is shifted in the direction of the thickness of the stator core relative to the opposite sides of the magnetic segments arranged opposite each other. Thus, it is possible to make a noticeable improvement in the displacement factor of the stator. The stator for use in rotating electrical machines is constructed by arranging a predetermined number of stator units (2, 21) in the circumferential direction of the stator core (6) in the shape of a ring. The stator unit is provided with magnetic segments (8) protruding inward in the radial direction of the stator core. The windings (5) are wound around the magnetic segments through insulating assemblies (4,22). Each piece of the insulating assembly has a thick section (12,23) slightly protruding opposite each other in the direction along the length of the magnetic segment, where the thick section is shifted in a position in the direction along the thickness of the stator core relative to the opposite sides of the magnetic segments arranged opposite each other. This makes it possible to make a noticeable improvement in the displacement factor in the stator.

Claims (2)

1. The stator consists of a ring-shaped stator core containing a number of magnetic segments arranged in various directions along the circumference; windings, each coil wound around a segment of the stator core's magnetic segments; and cylindrical insulating pieces placed between each coil of the magnetic segments. These insulating pieces, positioned on the surfaces of opposite sides of adjacent magnetic segments, partially protrude in the circumferential direction, compensating for the thickness of the stator core. The windings are wound in such a way that, at the surfaces of opposite sides of adjacent magnetic segments, the radial contours of the windings are significantly uniform and asymmetrical to each segment of the magnetic segment, forming a parallelogram that is sloped in one direction. 2. The stator according to claim 1, where the insulating element is formed into a substantially square cross-sectional U-shape, with the near end comprising two insulating elements joined together to form a cylinder, and each direction of the insulating element covers the end surface of the stator core in the thickness direction, and two connecting plates extending from both sides of the near end and covering a portion of the side surface of the stator core in the thickness direction. The two connecting plates of each insulating element are of different lengths to each other and are formed to their greatest thickness at the junction between the connecting plate and the connecting plate of another insulating element placed at the distal end of that section, and a tapering structure is used, which gradually thins towards the near end.