SU1585879A1 - Ac electric motor - Google Patents

Abstract

The invention relates to electrical engineering. The purpose of the invention is to enhance the functionality by providing reversibility. The AC motor contains a stator 1 with magnetic flux radial poles, as well as a rotor 11 mounted on a shaft, on which separate sections 12, 13 are mounted, windings not electrically connected to each other, as well as semiconductor magnetically sensitive elements. The stator 1 of the AC motor is made on two mutually independent electromagnetic parts 2, 3 with corresponding magnetic radial poles 4, 5, 6, 7 and two corresponding single-phase windings 9, 10. All radial poles of both electromagnetic systems of the stator 1 have sections in one plane, perpendicular rotation axis of the rotor 11, the main parts of all the radial poles of both electromagnetic parts 2, 3 of the stator 1 are located in one annular zone of the stator, covering the annular zone of the windings on the ro Ore. In each of the electromagnetic parts of the stator 1, two adjacent radial poles with sections of the stator windings are connected to each other by one of the sector magnetic cores 8. Sector nonmagnetic conductors are located between the magnetic cores and poles 4, 5, 6, 7 of different electromagnetic systems of the stator. The radial poles of the first electromagnetic system of the stator are shifted in the direction of the axis of rotation of the rotor relative to the radial poles of the second and electromagnetic system of the stator. The magnetically sensitive elements 14, 15 of the rotor 11 are arranged in two rows. The magnetically sensitive elements of the rotor of the first row are located in the annular zone of the rotor 11, located at the first end of the rotor and located under only the radial poles of the first electromagnetic system of the stator. The magnetically sensitive rotor elements of the second row are located in the annular zone of the rotor located at the second end of the rotor and located under only the radial poles of the second electromagnetic system of the stator. The first ends of the rotor windings are electrically connected to the second ends of the same rotor windings through the respective pairs of magnetically sensitive elements of the rotor. 1 hp f-ly, 6 ill.

Description

The 3 stator 1s are located in one annular stator zone, covering the Annular zone where the windings are located on the rotor. In each of the electromagnetic parts of the stator 1, two adjacent radial poles with sections of the stator windings are connected to each other by one of the sector magnetic cores 8. 1 | 1 between the magnetic cores and the poles -1 of different electromagnetic systems ||: tator non-magnetic semiconductors are located. The radial molars of the first electromagnetic system of the stator are located with a shift S in the direction of the axis of rotation of the rotor relative to the radial poles of the second And electromagnetic system of the stator. The magnetically sensitive elements 14, 15 of the rotor 11 are arranged in two rows.

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The magnetically sensitive elements of the rotor of the first row are located in the annular zone of the rotor 11, located at the first end of the rotor and located under only the radial poles of the first electromagnetic system of the stator. The magnetically sensitive elements of the rotor of the second row are located in the annular zone of the rotor located at the second end of the rotor and located under only the radial poles of the second electromagnetic system of the stator. The first ends of the rotor windings are electrically connected to the second ends of the same rotor windings through the corresponding pairs of magnetically sensitive rotor elements. 1 hp f-ly, 6 ill.

The invention relates to electrical machines, namely single-phase repulsion type machines.

The aim of the invention is to enhance the functionality by providing reversibility.

FIG. 1 shows an AC electric motor in a transverse projection, with the cover removed in FIG. 2, the same longitudinal section. FIG. 3 - the same, in a longitudinal section with a hollow rotor; FIG. 4 is an electrical circuit diagram of one of the rotor sections of an electric motor; FIG. 5 is one of the sections of the rotor with the corresponding magnetically sensitive elements poTopaj in FIG. b - the ratio of the angular dimensions of the rotor elements of an electric motor of alternating current.

The AC motor contains a stator 1, made of two parts 2 and 3 with radial poles 4-6 (Fig. 1 and 2), connected by sector magnetic cores 8, on which are placed single-phase windings 9 and 10.

Separate winding sections 12 and 13, electrically not connected to each other, and magnetically sensitive elements 14 and 15, located in two rows at the ends of the rotor 11 under poles 4-7 of different parts 2 and 3 of stator 1 are installed on the rotor 11. Sections 12 and 13 rotor 11 are located

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At its surface and placed in two corresponding rows evenly around the circumference.

The rows of sections 12 and 13 of the rotor 11 are shifted relative to each other and are arranged with overlapping sections.

Magnetosensitive elements 14 and 15 are located on the surface of the rotor 11, facing the poles 4-7 of the stator 1 with shifts around the circumference relative to the axes of the respective sections 12 and 13, with which they are electrically connected. The shortest angle o (fig. B) around the circumference of the rotor 11 between the magnetically sensitive element and the axis of the corresponding section 12 and 13 of the rotor 11, to which jon is electrically connected, does not exceed in magnitude the angular pitch A along the circumference between the axes of two adjacent sections 13 of p yes, but not less than a quarter of this angular step in the range of / 4 l -. L,

Between the magnetic cores 8 and the poles 4, 5 and 6, 7 different, parts 2 and 3 of the stator 1 can be located sector non-magnetic gaskets 16 and 17 (Fig. 1).

Parts 12 and 13 of the stator 1 (FIGS. 1 and 2) are disposed around the circumference by 180 ° and along the axis of the engine.

Each section 12 and 13 are connected Magnetosensitive elements 14 and 15, located under different parts 2 and 3 of the stator 1 and shifted

circumferentially in different directions from the axes of the respective sections 12 and 13, the width of the poles 4-7 of the stator 1 is made, no more than a step between the magnetically sensitive elements 14 and 15 of one row connected to sections 12 of the same row and not less of the pitch between the magnetically sensitive elements 14 and 15 of the same series, connected to sections 12 and 13 of different series, the magnetically sensitive elements 14 and 15 connected to the same section can be interconnected in parallel.

The magnetically sensitive elements 14 and 15 open (or reduce resistance) with increasing magnetic flux and close (or increase resistance) with decreasing magnetic flux.

 The motor works as follows.

When an alternating current is applied to the winding 7 belonging to one of the parts of the stator 1, an alternating j magnetic field is created, which is closed through pole 4, rotor 11, pole 5 and magnetic circuit 8.

The alternating magnetic field induces in sections 6 of the rotor 11 electromotive forces (EMF) and the corresponding alternating currents. The presence or absence of variable currents in certain sections 12 and 13 depends on the location and switching of their magnetosensitive elements 14 of the same row, since the planes of section 12 and 13 do not coincide with the axis of poles 4 and 5, a torque is generated. which rotates the contours of section 12 with current to coincide with poles 4 and 5.

Rotating clockwise, the rotor 11 rotates both its sections 12 and 13, and the Magnetosensitive elements 14, which correspondingly changes the switching of sections 12 and 13.

To put the engine into reverse rotation (or reverse) mode, the stator winding 9 is de-energized, and winding 10 is energized. The engine operates similarly, but in the opposite direction to HdM due to the opposite shift around the circumference of the elements 15.

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Claims (2)

1. An AC electric motor containing a stator with radially located and connected sector magnetic conductors with poles on which single-phase windings are installed, a rotor with windings in the form of separate sections evenly placed in two rows with the same number of sections in each of them, row sections are circumferentially displaced relative to each other with overlapping sections, magnetically sensitive elements are placed to the sections of the rotor, placed with a circumference shift relative to the axes of the sections to which they are connected are not More than a step between the axes of sections of one row and not less than a quarter of this step, characterized in that, in order to expand the functionality by ensuring the reversibility of the engine, the stator is made of two independent parts installed with a 180 ° offset around the other and along the motor axis, the Magnetosensitive elements are placed in two rows located at different rotor ends and under the poles of different parts of the stator; Magnetosensitive elements located under different h are connected to each section The stator astronomical elements are circumferentially shifted in different directions from the axes of the respective sections; the stator pole widths are made no more than a step between the magnetically sensitive elements of one row connected to sections of the same row and not less than a step between the magnetically sensitive elements of one row connected to sections of different series. 2. An electric motor as claimed in claim 1, wherein the magnetically sensitive elements connected to the same section are interconnected in parallel.  Fi2.g   Jj / s Fy FIG. five Fig.Z 6