SU1541713A1 - Electrical machine magnetic circuit - Google Patents

Abstract

The invention relates to electrical engineering. The goal is to increase the reliability of mechanoclimatic effects and reduce the labor intensity of manufacturing. The magnetic circuit of an electric machine with an external rotor is a toothed cylindrical core 1, in which grooves 2 are laid in the grooves of which. On the cylindrical surface of the core there are installed a flow-equalizing element 3 made of a ferromagnetic tape. The edges of the tape are located end to end on one of the teeth of the core and are connected to the tooth by welding along the butt line. 1 hp ff, 3 ill.

Description

one

(21) 4366002 / 24-07

(22) 01/13/88

(46) 07.02.90. Vul „№ 5

(72) N.N. Farhulin, Maiorov

and V.A. Yakovlev

(53) 621.313.04 (088.8)

(56) Delektorsky B.A. and etc-. Controlled hysteresis actuator, - М „: Energoizdat, 1Q83, p. 68

(54) ELECTRICAL MACHINE COLLECTING SYSTEM

(57) The invention relates to electrical engineering. The goal is to increase reliability.

work under mechanoclimatic effects and reduced labor intensity of manufacture. The magnetic circuit of an electric machine with an external rotor is a toothed cylindrical core 1, in the grooves of which a winding 2 is laid. On the cylindrical surface of the core there is a vacuum-leveling element 3, made of a ferromagnetic tape. The edges of the tape are located end to end on one of the teeth of the core and are connected to the tooth by welding along the butt line. з, п, ф-л, 5 Il.

BUT

Assembly

(L

1

This invention relates to low power electric machines.

The purpose of the invention is to increase the reliability of mechanoclimatic effects and reduce the complexity of manufacturing.

FIG. the magnetic conductor is shown; Figures 2 and 3 are view A in Fig. 1 (embodiments of the flow-leveling element),

The magnetic circuit of an electric machine consists of a toothed cylindrical core 1, in the slots of which winding 2 is laid. In order to reduce magnetic flux pulsations in an air gap, a leveling element 3 made of a ferromagnetic tape is installed on the cylindrical surface of the core.

| In order to prevent the leveling element from being rolled out relative to the core under the action of high temperatures and mechanical effects, the ribbon edges are end-to-end on one of the core teeth and are connected to it by welding the joint line. For cores: with a large tooth width, the ends of the tape are saw-like with a saw teeth height not exceeding the cyrine of the teeth of the core. When voltage is applied to the winding 2, the flow-iridescent element reduces the magnitude of the trotted harmonics of the airfield

ft / d A ftffptfOHfftf)

FIG. 2

Compiled by I. Posadsky Editor N, Yatsola Tehred A. Kravchuk Proofreader M. Kucher va

gap, thereby improving the performance of the electric machine.

The welded structure has an increased reliability of operation under mechano-climatic influences due to the rigid connection of the flow-leveling element with the core. In addition, the complexity of manufacturing the magnetic core is reduced, as well as the processes of disembarkation or stretching for the manufacture of continuous cylindrical flow-leveling elements are eliminated.

Claims (2)

15 claims 1, The magnetic circuit of an electric machine, comprising a toothed cylindrical core and a cylindrical ferromagnetic flow equalizing element mounted on its surface, characterized in that, in order to increase the reliability of mechanoclimatic effects and reduce the labor intensity of production, the flow equalizing element is made of a tape whose edges are butt one of the teeth of the core and connected to the core along the butt line by welding. 2. Magnetic circuit according to claim. 2, in which the edges of the tape have a saw-tooth shape with teeth having a height not exceeding the width of the tooth of the core. bidAvariant I), C Fig.Z