SU1765874A1 - Single-phase induction motor - Google Patents

Abstract

Usage: single-phase AC motors in automation and robotics systems with rotary-rotary motion of the rotor. SUMMARY OF THE INVENTION: A single-phase asynchronous motor contains a stator with pronounced poles, a short-circuited ferromagnetic rotor, and the air gap in the motor is uneven as in tangential and in axial direction. 4 il.

Description

The invention relates to electrical engineering, and more specifically to asynchronous single-phase motors, and is intended for use in automation and robotics systems.

Single-phase asynchronous motors are known that contain asymmetric stator magnetic circuits with newly expressed poles with an uneven air gap in the tangential direction.

one.

Also known single-phase asynchronous motor containing an asymmetric stator magnetic core with highly marked poles, with an uneven air gap in the tangential direction and a short-circuited ferromagnetic rotor 2.

This engine has limited functionality.

The aim of the invention is to expand the functionality of the engine by providing rotational-translational motion.

This goal is achieved by the fact that in a single-phase asynchronous motor containing an asymmetric stator magnetic circuit with newly expressed poles, with an uneven air gap in the tangential direction and a short-circuited ferromagnetic rotor, according to the invention, the air gap in the axial direction is also uneven, and in a ferromagnetic rotor, the air gap in the axial direction is uneven, and in a ferromagnetic body, the rotor will have a gap. electrically conductive material.

1 shows a general view of the engine, the cross section; figure 2 is a longitudinal section of the engine; on fig.Z-general view of the engine in axonometry; figure 4 is a view of the newly expressed stator poles below.

A single-phase asynchronous motor (FIG. 1) contains an asymmetric stator 1 magnetic circuit with newly expressed poles 2, with an uneven air gap in the tangential direction, coils 3 of single-phase winding are placed at the poles 2, and a short-circuited ferros

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a magnetic rotor 4 on which an electrically conductive cylinder 5 is placed. FIG. 2 shows a longitudinal section of the engine. Poles 2 form an uneven air gap also in the axial direction. The arrow b indicates the direction of action of the axial force. FIG. 3 is an axonometric view of the engine, which shows the unevenness of the air gap in the tangential and axial directions. Arrow 7 shows the direction of the torque. Figure 4 shows the bottom view of the pole 2, the direction of action of forces b, 7 on the rotor and the resultant force 8.

The engine works as follows.

When winding 3 (Figures 1 and 2) is connected to a single-phase voltage source, a magnetic field is excited, which will be rotating elliptical due to axial asymmetry of the air gap. The magnetic field, crossed by an electrically conductive cylinder 5 (Figures 1 and 3), induces electromotive forces in it, under the action of a

Some of them in the cylinder 5 flow eddy currents. When the rotor currents interact with the rotating and traveling magnetic fields, a torque is generated (arrow 7 in FIG. 3 and 4) and an axial force (arrow 6 in FIG. 3 and 4), which act on the rotor and cause it to rotate. under the influence of the resulting force (arrow 8 in Fig. 4).

Claims (1)

Claims of the Invention A single-phase asynchronous motor containing an asymmetric stator magnetic conductor with pronounced poles, with an uneven air gap in the tangential direction and a short-circuited ferromagnetic rotor, characterized in that in order to expand the functionality by providing rotational-translational motion, The air gap in the axial direction is also uneven, and on the ferromagnetic rotor there is a cylinder of electrically conductive material. 1 Editor FIG J FIG. four Compiled by V. Solomin Tehred M.MorgentalKorrektor N. Vuchok FIG. g h XЈ