RU1814156C - Multirotor single-phase asynchronous electric motor - Google Patents

Abstract

Usage: single-phase asynchronous motors for driving multi-shaft mechanisms, for example, in cotton-picking machines. SUMMARY OF THE INVENTION: A single-phase asynchronous electric motor comprises a stator with a number of magnet wires attached to a fixed shield with two pole tips, shielded by short-circuited turns, which adjoin the gap to the disk rotors. 1 C.p. f-ls, 2 ill.

Description

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The invention relates to the field of electrical engineering, in particular to multi-rotor induction motors for driving multi-shaft mechanisms.

The purpose of the invention is to reduce the mass of the rotating part of the engine, simplify the design and provide reverse rotors.

A comparative analysis with the prototype shows that the inventive electric motor is characterized in that instead of the magnetic cores with the field winding and rotors mounted on the rotating part, the motor is made with a fixed end-face stator, consisting of pairs of magnetic cores connected by common field windings, pole tips which adjoin with a gap to disk rotors,

The significant difference is that a multi-rotor single-phase asynchronous electric motor is obtained, between the rotors and stator magnetic circuits of which there is no rigid connection. In addition, the present invention is characterized in that diametrically two direct current brake electromagnets are mounted on a fixed shield of the stator of the electric motor, and in the stator zones located between them, the order of alternation of the shielding turns on the pole tips of the magnetic circuits is opposite.

Figure 1 shows the proposed engine, front view; figure 2 is the same, a top view with partial cuts.

A multi-rotor single-phase asynchronous electric motor contains a stator, made in the form of a number of fixed on a fixed shield 1 and combined in pairs00

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coils 2 of the excitation windings of the magnetic cores 3 with two poles, tips 4, shielded short-circuited turns 5, and disk rotors 6 with radial short-circuited windings - My windings 7, the ends of the shafts 8 of which are located on the bearing shield 9 and are evenly spaced around the perimeter of the stator.

The fastening of the magnetic cores 3 on the fixed shield 1 makes it possible to reduce the mass of the rotating part of the engine and simplify its construction.

On a fixed shield 1, two DC brake electromagnets 10 are also diametrically placed, receiving power from the same single-phase current source through the rectifier, and in the stator zones located between them, the opposite is the order of alternation of the shielding coils 5 on the pole tips 4 of the magnetic cores 3. which provides a reverse mode of the rotors 6 when moving from one zone of the stator to another.

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Claims (2)

1. A multi-rotor single-phase asynchronous electric motor, comprising rotors evenly distributed around the stator, the ends of the shafts of which are located in the bearing shield, magnet wires with an excitation winding, so that, in order to to reduce the mass of the rotating part of the motor and simplify the design, the stator is made in the form of a series of magnetic circuits fixed to a fixed shield with two pole tips, shielded by short-circuited turns, with the pole tips adjoining the disk with a gap Otori. 2. The electric motor according to claim 1, with a tout and so that, in order to ensure reverse, two DC brake electromagnets are diametrically placed on a fixed shield, moreover, in the Stator zones located between them, an order of magnitude the alternation of the shielding coils on the pole ends of the magnetic cores is the opposite. FigJ