SU1432683A1 - Linear direct-current motor - Google Patents

Abstract

The invention relates to electrical engineering and can be used in drives for linear movement of industrial mechanisms with a wide range of speed control. The purpose of the invention is to increase efficiency and reduce copper consumption. The device consists of a two-sided fixed inductor with poles 1-4. Poles 1 and 3 are shifted relative to poles 2 and 4 in the transverse direction. The movable measles 5 with permanent magnets 6 and 7 are provided with sections of the core winding. The interaction of the magnetic fluxes of the poles 1–4 with the currents of the switched sections of the core winding leads to the generation of a tractive force. This force is created by the entire core winding, which leads to an increase in efficiency. s 4 ill. (L S.

Description

The invention relates to electrical engineering and can be used in linear actuators for moving mechanisms with a wide range of speed control.

The purpose of the invention is to increase efficiency and reduce copper consumption.

Figure 1 shows the engine, a general view; 2-A shows diagrams illustrating engine operation.

Linear DC motor consists of a two-sided stationary inductor with poles 1-4, Moreover, poles 1 are shifted on the pole to 15 poles 2 in the transverse direction as well as poles 3, with respect to on, -, and on the pole 4. Between the poles there is a moving core core 5 containing, as an excitation system nor 20, standing magnets 6 and 7 with opposite polarities that are connected to the core of the core 5 by non-magnetic plates 8. The permanent magnet 6 is a source of magnetic flux F,, 25 which closes on the way: constant permanent magnet 6, the air gap 9, the pole 1, the air gap 9 of the armature core 5, the air gap 9, the pole 3, the air gap 9 and permanent again 30

magnet 6, A permanent magnet 7 has opposite polarity relative to the polarity of the permanent magnet 6 and creates a magnetic flux φ, which closes along the path: the permanent magnet 7 air gap 8, pole 4 ,. air gap 9, core core 5, air gap 9, pole 2, air gap 9 and again a permanent magnet 7. Magnetic fluxes 9 and. passing through the core core 5, have an opposite direction of their action,

In the slots of the core sections 10-13 of the root winding are laid.45

The engine works as follows.

The interaction of the magnetic fluxes P, and F with the currents of the core winding of sections 10–13 creates a thrust force of the motor. Switching sections is carried out by a switch (mechanical or electronic).

When offset from the poles by one slot division in the direction of tractive effort, the magnetic flux f is divided into fluxes and, which, when the sections 10 and 12 of the core winding are properly switched, when these fluxes interact with the winding currents of the core, they also generate same side.

Thus, the traction force of the proposed engine is created by the entire core winding on the entire active surface of core j, which increases the efficiency and reduces the consumption of copper on the core winding.

Claims (1)

Invention Formula Linear DC motor, containing a fixed two-way inductor with newly expressed poles, forming an alternating-pole system, between which is placed a moving core core with grooves and a winding installed in them, characterized in that, in order to increase K1SC and reduce copper consumption, inductor poles alternately shifted from the core axis in different directions, the excitation system is performed on permanent magnets rigidly fixed with nonmagnetic plates on the crust and located with a gap between the poles over the frontal parts of the anchor coil.