SU452873A1 - Electromagnetic relay - Google Patents

Description

(54) ELECTROMAGNETIC RELAY

one

This invention relates to miniature electromagnetic relays used in electronic equipment.

Known electromagnetic relays containing measles, located between flat pole pieces, and two control coils, located on round cores, do not allow to reduce the size and increase the sensitivity of the relay.

In the proposed invention, these disadvantages are eliminated due to the fact that the longitudinal axis of the core is displaced relative to the axis of the pole tip, and at the transition point of the core to the pole end

tip made bevel.

FIG. 1 shows the proposed relay in three projects; in fig. 2 - core, passing to the pole tip, in three projections.

Electromagnetic relay includes two control coils 1, 2 electromagnets, two cores 3, 4, the transition into pole lugs 5, 6, which are turned around a certain angle, relay 7, connecting the cores, balanced measles 8 on which the return spring 9 is located. The armature has pins on both sides that rotate in the holes located on the bar 10 and the clamp 11. On the bar 10 there is a tongue 12 for adjusting the pressure of the return spring. With the help of brackets 11, strips 10 and rma 7, the electromagnet is assembled into a rigid structure. To reduce the size of the relay, the longitudinal -. The axis of the pole tips 5, 6 is shifted relative to the longitudinal axis of the cores 3, 4 by the value of b. The cores 3, 4 and pole pieces 5, 6 are one piece. Actually cores 3, 4 are round and aai. are finished with flat pole lugs 5, 6. If the axes of the cores and pole lugs were combined, then the coils, worn on the cores, would go beyond the dimensions defined by the magnet system, thereby increasing the total volume of the relay.

By passing an electric current

pole pieces 5, 6 are magnetized through coils 1, 2 to reduce leakage fluxes at the junction of the cores to the pole tips, the bevel 13 is made at an angle сС, which increases the air gap between the core end and the core. This results in a reduction in lateral dispersion of lines of force. Under

the action of the magnetic flux in the working gap of the measles 8, rotating, is attracted

to the pole pieces 5, 6. The movement 8 is transmitted by means of the push rods 14, 15 to the contact springs 16, 17.

Subject invention

Electromagnetic relay containing measles located between flat pole pieces, two control coils located on round cores, characterized in that, in order to reduce overall dimensions and increase the sensitivity of the relay, the longitudinal axis of the core is displaced relative to the axis of the pole tip; pole tip made bevel.

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