SU748704A1 - Reciprocal motion electric motor - Google Patents

Description

The invention relates to electrical machines of reciprocating motion and is intended to drive mechanisms whose working links perform reciprocating or oscillatory motion.

The known design of an electromagnetic motor of reciprocating motion, containing two separated windings (or two groups of windings), which are alternately connected and displacing the bark reciprocatingly into the position of maximum flux coupling. In such a design, the electromagnetic volume is poorly used, since of the working moment in turn, only half of the windings take part.

A reciprocating electric motor / containing the magnetic core of a special forca is also known, on which excitation windings are placed, one of which is powered by a constant and the other by a variable tick 2.

At the same time, constant magnetic fluxes and alternating magnetic flux flow through the magnetograph. The alternating magnetic flux penetrates the movable copper ring, implanted on the same rod, on which the alternating current winding is placed. With an excited magnetic system, an alternating current is created in the ring. The magnetic core is designed in such a way that the magnetic flux lines emerging from the poles of the rod, excited by a constant flux, are directed perpendicular to the axis of the copper ring. As a result of the interaction of the alternating current flowing through the ring and the constant

15 magnetic fluxes, the ring is under the action of forces moving it back and forth synchronously with the frequency of the alternating current.

The armature of the electric motor is

20 short-circuited ring, which is .bleblets within the pole space. Therefore, to create a driving moment, only the following is used: a part of a constant flow, created by a pole; If. to make measles from several rings (or with a ring width greater than the pole width), then the currents of the rings (part of the ring), which are behind

Claims (3)

30 beyond the pole. These drawbacks make the engine work more efficiently and reduce its efficiency. A significant drawback of the engine is also the presence of a common magnetic circuit for constant and variable flows. This causes hysteresis losses and eddy currents also in the volume of steel reserved for the origin of the constant flow and reduces the energy performance of the engine. The short-circuited ring moves in the air gap, which is of considerable magnitude, which increases the size of the engine and the power consumption. The purpose of the present invention is to increase the efficiency and reduce the size of the electric motor. The goal is achieved by the fact that an electric motor of reciprocating motion, holding an inductor with a magnetic core, on the poles of which there are excitation windings, measles with a magnetic core and a short-circuited magnetic winding, is provided with axially magnetic in additional. magnetic conductors located between the poles of the inductor, on which the alternating current excitation windings are located, the magnetic conductor of the field is made up of separate parts displaced relative to each other around the circumference, the number of which is equal to twice the number of additional inductor magnetic cores, the coil consists of a number of short-circuited rings / a core length is greater than the length of the inductor by twice the size of its stroke .; Extraction magnets of the direct current or permanent magnets can be placed on the additional inductor magnetic cores. ,; Figure 1 shows the proposed electric motor, a cross-section in figure 2 shows section A-A in figure 1. The electric motor includes a housing 1 with cr and an inductor fixed in it. The anchor consists of a magnetic circuit made of separate parts 2 and a number of short-circuited rings shorted around the circumference 4. The ring is mounted on a fixed ya 5 and consists of a magnetic conductor 6 having poles 7 and rods 8 with alternating current. (poles 7 are permanent magnets 10. Parts 2 and 3 of the magnet of the conductor core are located in the same plane and are shifted relative to each other by BO, the poles 7 of the magnetic core 6 and the permanent magnets 10 are also shifted by an angle of 60. Part 2 of the magnetic core is assigned for pr constant magnetic flux, and parts 3. - alternating magnetic flux. The electric motor works as follows. The alternating current coils 9 in opposite directions create two oppositely directed magnetic fluxes in the magnetic core of the inductor, closing in measles through poles 7. At the same time The rings 4 of the cores, placed in the grooves of the core magnetic circuit, are induced by EMF and currents arise.The currents of the right and left groups of rings 4 have opposite directions due to the opposite directions of the variable flows. The constant magnetic flux generated by the permanent magnets 10 is closed through parts of the magnetic circuit 2 in the zone of current flow in short-circuited rings and interacts with these currents. The direction of the flow passing through the zone of the right group of rings 4 is opposite to the direction of the flow of the left group. In this case, the right and left groups of rings 4 are acted upon by a force of one direction and the measles move. When the phase of the supply voltage changes, the direction of the force changes. Thus, the electric motor measles moves reciprocatingly with the frequency of the supply voltage. The active length of the corona must be greater than the length of the inductor by a doubled stroke. In this design, the entire flux of permanent magnets 10, (except for the scattering flux), interacts with all the currents induced in short-circuited rings by 4 alternating fluxes. Instead of permanent magnets in an electric motor, electromagnets of direct current can be used. It is also possible to construct a motor in which the measles is mounted on a movable shaft and moves relative to a fixed inductor fixed in the housing. Elimination of the common paths of the closure of constant and alternating flows, achieved by using separate magnetic circuits, the possibility of creating in the proposed design of minimum gaps, the presence of two oppositely connected AC coils, creating flows that cause EMF in the cortex only in the zone of action of constant flows, and full use of these flows allows to increase the efficiency of an electric motor of this type and reduce its dimensions. Claims 1. Reciprocating electric motor comprising an inductor with a magnetic core, at the poles of which there is an o-winding Judgment, measles with IH magnetic conductor short-circuited winding, characterized in that in order to increase efficiency and mind the dimensions of an electric motor, it is equipped with axially magnetised, additional magnetic conductors located between the inductor poles, on which alternating current windings are placed, on which alternating current windings are located, on the axial direction, located between the poles of the inductor, on the coils, the magnetic windings of the alternating current, the magnetic currents, are placed between the alternating current, the magnetic currents . The core is made (from individual parts displaced relative to each other around the circumference, the number of which is equal to twice the number of additional magnetic cores of the inductor, the core winding consists of a series of short-circuited rings, and the core length is more than the length of the inductor by twice its stroke. 2. The electric motor according to clause. Li differs from the fact that on the additional magnetic cores of the inductor are placed the excitation windings of direct current. 3. An electric motor according to claim 1, characterized in that permanent magnets are placed on additional inductor magnetic cores. Sources of information taken into account in the examination ,one. US Patent No. 3.431. 477, cl. 318-125, 1970. 2. Schweizjerische TechniscHe Zeitschrift1967,, t.64, No. 39,825-837.