SU1525815A1 - Method of manufacturing electric machine stator - Google Patents

Abstract

This invention relates to mechanical engineering technology and can be used in the electrical industry. The purpose of the invention is to increase the efficiency of an electric machine by increasing the heat sink from the core. The stator core 1 is poured with aluminum alloy 3. Then winding 4 is placed in the core. The fastening of the rings 5 covering the winding frontal parts with lead-on cones 6 to the core made by machining is performed by mounting the core on the mandrel, and the rings 5 are placed on two longitudinal calipers and move progressively towards the core. As a result of contact of the rings with the core, the aluminum layer melts and forms a strong connection of the core with the rings during cooling. 1 il.

Description

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The invention relates to the technology of manufacturing electrical machines and can be used in the electrical industry.

The purpose of the invention is to increase the efficiency of an electric machine by increasing the heat sink from the core.

The drawing shows the stator of an electric machine.

The method is carried out as follows.

The stator core 1, assembled from individual sheets 2, is poured with an aluminum alloy of 3 thick 2 mm. The core was poured on a pressurized casting machine (type 4545C). Then, oG O or ky A is laid in the core and all winding and one-one-one nuiH windings are performed. Fastening of the gauge, closed i, frontal windings, with mechanically machined: jaxo; iii LiMH cones 6 To the core of the rifle. -child t on a special assembly g; li1te. The stator core is attached to the mandrel and rotated. The rings are placed on two longitudinal calipers and progressively displace along the naprapleiish to the core. Upon contact with the core as a result of friction, the aluminum layer melts and forms a strong

backlash-free connection of the core with rings. The taper of the lead-in cones 6 is selected experimentally. For this dimension, it is 1:15. After the rings are attached, mechanical processing of their ends is performed to install the shields during the assembly of electric motors. The outer surfaces of the core and the rings are ribbed to improve the heat sink.

Claims (1)

Invention Formula A method of manufacturing an electric machine stator, according to which the stator core is coated with aluminum alloy, the winding is placed in the core, rings are attached to close the frontal parts of the braces, characterized in that, in order to improve the efficiency of the electric machine by strengthening the heat sink from the core, before connecting them to the internal surface of the treatment is FOT before the formation of the feed cone, and the rings are attached to the core with an aluminum alloy, heating it to the melting point relative rotation neither the rings and the core and their translational movement along the tapered surfaces.