Magnetoelectric engine

FIELD: electricity.

SUBSTANCE: in a magnetoelectric engine rotor contains a disc fixed at a shaft whereat a ring-shaped line of permanent magnets with alternating polarity is mounted. A stator contains two parallel plates and the stator windings are placed between them. The stator plates are equipped with cores of electric steel, at which the stator windings are placed. The cores are made as two rings and there are protrusions at their surfaces faced to each other. Width of the protrusion B is equal to half of the permanent magnet C width. Protrusions of one core are off-centred in regard to protrusions of the other core to the half of the permanent magnet C width. The rotor disc is placed between the cores of the stator windings.

EFFECT: increasing power of the magnetoelectric engine with preservation of its dimensions.

4 dwg

The invention relates to the field of electrical engineering and can be used in particular in hybrid cars and electric vehicles, Electromechanical, including automatic control systems, etc.

Known electromagnetic torque motor with two stator with toroidal magnetic circuit and coil windings, the disk rotor with permanent magnet with axial magnetization and alternating polarity, bearings with outer and inner rings and the rotor shaft, with one of the stator is rigidly fixed in the housing; the motor comes with a second disc rotor with the shaft, similar to the first rotor, a stationary hollow axle with wheel hub and adjusting rings, and the rotors are aligned and installed with the possibility of mutual rotation, rotor shafts are hollow and is placed on the outer rings of the bearings, which with two ends mounted on a stationary hollow shaft first stationary stators mounted on the hub of the hollow axis, and a second stator mounted can rotate relative to the first, the adjustment ring is placed on a fixed axis between the end surfaces of the hub and the inner ring of the bearing; a toroidal cores made with trapezoidal teeth and yoke, and the height of the yoke is greater than the height of the teeth on the two heights of the stator winding, SU 1775807 A1.

The main disadvantage of this engine is the so-called "sticking" of the rotor due to the mutual attraction of teeth of the stator and the permanent magnets of the rotor.

Also known magneto-electric motor, the rotor of which is made of two mounted on a shaft parallel discs, each of which is placed an annular series of permanent magnets with alternating polarity, the poles of permanent magnets placed on one of the disks of the rotor facing toward opposite poles of the magnets placed on another disk rotor, the stator is a plate in the form of a disk and placed between the disks of the rotor with a clearance relative to the shaft and provided with an annular windings in the shape of an isosceles trapezoid, the sides of which are located radially relative to the axis of rotation of the rotor; the stator has many divergent fan out in a circle with spokes slots; an annular winding is placed in said spokes; for fixing the stator windings are the inner and outer rings, CN 101951106 (A).

Its disadvantage is uneven torque on the motor shaft and the resulting unevenness of rotation of the rotor. This is because the maximum interaction of the magnetic field of the stator winding and the permanent magnet of the rotor occurs when the coincidence of the axes of the SIMM is tree ring winding and magnet. When changing the mutual position of these axes relative to each other, this interaction is reduced.

Known magneto-electric motor, the rotor of which contains mounted on a shaft parallel discs, each of which is placed an annular series of permanent magnets with alternating polarity, the poles of permanent magnets placed on one of the disks of the rotor facing toward opposite poles of the magnets placed on another disk rotor, a stator disposed between the rotor disks with a clearance relative to the shaft and provided with an annular windings in the shape of an isosceles trapezoid, the sides of which are located radially relative to the axis of rotation of the rotor, the stator is made in the form of two parallel plates, an annular winding is placed between the plates, the sections of the annular windings at the bases of the trapezoid are bent in an arc, the circular winding of one stator plate is inserted in the annular winding the other plate of the stator education modules, and the distance l between the sections of the annular windings at the bases of the trapezoid is larger than the width b of the annular series of permanent magnets; between the annular stator windings placed additional flat annular coil in the shape of an isosceles trapezoid, the sides of which are located in one pleskot settled between the sides of the other annular windings, EN 121404 U1.

This engine is adopted as the prototype of the present invention.

The disadvantage of the prototype is a large distance between the opposite poles of permanent magnets placed on the rotor disk. In this regard, the magnetic field strength in the gap where the stator winding is reduced drastically depending on the width of this gap, which is determined by the width of the stator. In the fall the engine.

The present invention is to increase engine power while maintaining its size.

According to the invention the electromagnetic motor, the rotor of which contains fixed on the shaft of the drive on which is placed an annular series of permanent magnets with alternating polarity, and the stator contains two parallel plates, between which is placed the stator winding, the stator plate provided with cores of electrical steel that host stator winding, the cores made in the form of rings, facing each other, the surfaces of which made the tabs, the width of the ledge is the half-width of the permanent magnet, the tabs of one of the cores are displaced circumferentially relative to the protrusions of the other core half-width of the permanent magnet, the disk the rotor is placed between the core is mi windings.

The applicant has not identified any technical solution that is identical to the declared that allows to make a conclusion about conformity of the invention the condition of "Novelty".

Implementation characteristics of the invention provides an important technical result consists in the following. In the present invention the magnetic field affecting the engine, is determined by the total size of gaps between the permanent magnets of the rotor and the projections of the cores of the windings of the stator. Each of these gaps may not exceed 0.5 mm and depends on the accuracy of manufacture and Assembly of mechanical parts of the engine.

The device prototype the size of the gap determines the magnetic field strength depends on the thickness placed in this gap windings and is, practically, not less than 10 mm

The claimed technical solution allows to reduce the gap, which determines the magnetic field strength is not less than 10 times and thereby dramatically increase the capacity of the magneto of the engine while maintaining its size.

The above-mentioned circumstances determine, according to the applicant, according to the present invention, the condition of patentability "Inventive step".

The invention is illustrated by drawings, which shows:

figure 1 is a - front view;

n is 2 - section a-a in figure 1;

figure 3 - cross-section B-B in figure 1;

figure 4 is a fragment of the core windings in a perspective view.

The electromagnetic motor includes a rotor comprising a fixed shaft 1 disk 2 made of duralumin. On disk 2 is placed an annular series of permanent magnets 3 of rectangular shape with alternating polarity (figure 1). The magnets 3 are equidistant relative to each other. The motor stator includes two parallel plates 4, 5 made of a nonmagnetic material, in particular aluminum alloy. Plates 4, 5 are associated with the shaft 1 by means of bearings 6, 7. On the plates 4, 5 of the stator reinforced cores of electrical steel, made in the form of two rings 8, 9, facing each other, the surfaces of which are made, for example, by milling, the protrusions 10, 11, respectively. Width of each protrusion is half the width of the permanent magnet 3. The projections 10 on the ring 8 are offset from the protrusions 11 on the ring 9 by half the width of the permanent magnet 3 (/2). The gaps between the permanent magnets 3 are filled epoxy compound 12. On the periphery of the permanent magnets 3 tied bandage tape 13. The cores of electrical steel posted winding 14 of the stator. In the drawings, the example of the winding 14 is placed on the protrusions 10, 11 gel core is s, it is also possible placement of the windings 14 on the cores between the projections 10, 11, but the latter is somewhat more complicated technology. The windings 14 are connected in series.

Magneto the engine works as follows. When applying an alternating electric current in winding 14 of the stator there is an interaction between the magnetic fields of permanent magnets 3 and the magnetic fields generated by flow of electric current in the windings 14. The resulting torque, providing rotation of the shaft 1 of the rotor. Because the cores are common elements of a ring with the tabs and the surface of the protrusions processed for a single installation of the core and the machining tool, the surface protrusions of each core are strictly in one plane. Consequently the minimum and uniform gap between the cores of the windings of the stator and the surfaces of the permanent magnets 3. Since the width of the ledge is the half-width of the permanent magnet of the rotor and the protrusions of one of the cores are displaced circumferentially relative to the protrusions of the other core half width of the permanent magnet eliminates the effect of sticking of the rotor, which makes it difficult to start the engine and cause noise during its operation. This is because cominittee field cores, mounted on the plate 4 of the stator, balances the magnetic field cores on the plate 5 of the stator. As a result, when any position of the rotor of the total component forces act on it, practically equal to zero.

For the manufacture of devices used ordinary materials of construction and plant equipment. This circumstance, according to the applicant, allows to conclude that the invention conforms to the criterion "Industrial applicability".

Magneto-electric motor, the rotor of which contains fixed on the shaft of the drive on which is placed an annular series of permanent magnets with alternating polarity, and the stator contains two parallel plates, between which is placed a winding of the stator, wherein the stator plate provided with cores of electrical steel that host stator winding, the cores made in the form of rings, facing each other, the surfaces of which made the tabs, the width of the ledge is the half-width of the permanent magnet, the tabs of one of the cores are displaced circumferentially relative to the protrusions of the other core half-width of the permanent magnet, the rotor disc is placed between the cores of the windings of the stator.