SU31881A1 - Device for selective actuation of a relay - Google Patents

Description

Already known are devices for selectively activating a relay using different voltages. According to the invention, in such a device for accelerating the movement of the core at the end of a turn, each of the relays except for two working electromagnets and below a third additional electromagnet.

In FIG. 1 shows a device diagram; FIG. 2-diagram of a separate relay; FIG. 3 is a sectional view of a relay and FIG. 4-6-different positions of the relay are relative to the poles of the additional electromagnet.

The working windings a, and all relays connected in series, have the same NUMBER of turns and can be simultaneously connected to the current source circuit of one of the buttons 3, 3, Each of these buttons includes in series with the working windings different in magnitude 9r resistance, whereby the magnitude of the power of the current in the circuit of these windings and the magnitude of the magnetic flux in them depend on the button. -;

reaped. However, whatever the current strength, due to the equality of the number of turns of the windings a and a, the magnetic fluxes of the individual windings will always be equal to each other. Polarizing windings and, and, permanently connected to the circuit of the same current source, have different number of turns, as a result of which the magnetic fluxes in each of them are different. Both windings are polar and working and are switched on so that the magnetic fluxes in them are directed towards each other. When one of the buttons is closed, the magnetic fluxes are mutually annihilated only in the one in which the number of current and polarizing ampere turns will be equal; in the remaining relays, the number of Ampervaltes on any of these windings will always prevail. Voltage fluctuations of the current source are not reflected in the mutual compensation of magnetic fluxes, since a common current source is used for the workers and for the polarizing windings in the device. To compensate for the resistance of the connecting wires (from the buttons to the relay), the resistance of the corresponding value can be included in the circuit of the winding windings. The magnetic field of each of the relays contains a bark of soft gaze, equipped with a plate bearing contact k at one end, which serves to close the controlled relay circuit KI, and at the other, prismatic measur b of an additional electromagnet g, designed for fast and reliable closure mentioned chain. If there is no magnetic current in the relay, when the ampere turns and and a are equal, measles by means of the spring H are set perpendicular to the direction of the magnetic flux, and the resistance comes into contact with the contacts of the ffj circuit; in the case if the revolutions are not equal, then, overcoming the action of the spring /, the measles r is set parallel to the magnetic flux lines (Fig. 3) to the contacts "1 open, s1. An additional electromagnet, serving, as already indicated above, to accelerate the closure of the contacts to and KI, is included in the circuit of one of the main windings of the relay; when the core r rotates under the action of the spring H (after the magnetic fluxes of the windings a and and were mutually destroyed) at a certain angle (dotted line in Fig. 4-6), the prismatic measles b gets into the zone of influence of the additional electromagnet bends it, accelerating the rotation of the plate of the core g carrying the contact k.

The anchor & is prismatic in order to limit as much as possible the sphere of influence of the additional electromagnet g. In order to avoid contact closure in the event of voltage disappearance, a small spring b was used, which is freely overcome by an additional electromagnet, but does not allow the contacts to close, if there is no current in the circuit of this electromagnet.

Since during the reversal (when the flow of the winding is stronger than the main flow of the winding u), the core will oscillate, THEN, in order to avoid accidental closing of the contacts, one or another damper can be used.

In order to eliminate the excessive consumption of electric power into the winding circuit, the relay can close the circuit of the main field windings and only for the duration of the device.

jf The subject matter of the invention.

Claims (2)

1. A device for selectively activating a relay using different voltages, characterized by the use of an additional electromagnet g, placed adjacent to one of the two supplied ones. each working and polarizing windings of electromagnets and intended to accelerate the movement of the core at the end of the turn. 2. When using the device according to claim 1, the application of the prismatic core form. Fug Have r rUY J-U-Y-U-Lnin-. J  V i -iW-f 1 / and ,, 1 /  Sh g from  -.p, J