SU1686613A1 - Electric machine - Google Patents

Description

one

(21) 4693768/07

(22) 05/19/89

(46) 10/23/1. Bul № 39 (75) V.N. Zykov

(53) 621.313.713 (088.8)

(56) USSR author's certificate

No. 1050057, cl. H 02 K 23/04, 1980.

USSR Author's Certificate No. 289481, cl. H 02 K 17/00, 1960.

(54) ELECTRICAL MACHINE (57) The invention relates to electrical engineering. The purpose of the invention is to improve the energy and weight and size indicators, manufacturability and service. The electric machine contains a stator with poles of laminated pouches and bearing shields 3. Due to the fact that the poles rest on the bearing shields, and the windings 2 are located on the poles on both sides, this goal is achieved. 1 il.

soo oo

O5

& e

The invention relates to electric machines and can be used in the design and manufacture of electric motors and generators of direct and alternating current.

The aim of the invention is to improve the energy and weight and dimensions of the machine, manufacturability and service.

The drawing is a diagram of an electric machine (the dotted line shows the magnetic field lines developed by the windings of the poles).

The machine contains a stator, consisting of poles 1, with windings 2 and bearing shields 3, of magnetic conductive material, and a rotor 4. The windings can span either one pole, for example, in DC buses, or a group of poles, multiphase ac machines. The poles rest on bearing shields with a mating having a radius of curvature equal to the radius of the stator bore.

The machine works as follows.

With the passage of electric current through the windings 2, they develop in the poles 1 magnetic fluxes that pass through the bearing shields 3 and the rotor 4, transforming it into forces that cause its rotation.

This design significantly (by a factor of 2-3) reduces the air gap between the stator poles and the rotor, which increases the efficiency of using the magnetic flux developed by the stator windings and, consequently, the use of electrical energy. The arrangement of the windings at the two ends of the poles reduces their cross-sectional area, thereby reducing the distance

0

the course of the metal on them, as well as the size of the windings arranged on them, and the consumption of copper wire is reduced. Since all the parts have a simple form, the design of the machine is simplified, the process of its manufacture and assembly is simplified, which improves the manufacturability of its production, its size, weight and cost are reduced.

The economic effect in the production and operation of a machine arises due to cheaper production, lower material costs and lower power consumption when using the machine as an electric motor, and increasing the amount of electricity produced when using the machine as a generator. The test results of the prototype showed that the efficiency of using electrical energy increases by

90 40 ° / zu-oi / 0.

Claims (1)

Invention Formula An electric machine containing an axially covered stator windings poles arranged in the form of laminated bags, and bearing shields made of magnetic conductive material, characterized in that, in order to improve energy and mass-dimensional parameters, manufacturability and serviceability, the poles are directly supported on the bearing shields and have bearing shields, cylindrical mating surfaces with a radius of curvature equal to the radius of the bore of the stator, and the windings located at the poles on both sides between the stator bore and bearing shields.