SU1695413A1 - Electromagnet relay - Google Patents

Abstract

The invention relates to electrical engineering, in particular to electromagnetic switching devices with a valve magnet system. The purpose of the invention is to simplify the design. The relay contains a valve-type magnetic system. Yoke 5 at the place of installation of the core 6 is provided with two L-shaped protrusions 8 directed towards each other, a cylindrical return spring 7 of torsion is installed on the protrusions, interacting with the ends of the core and the pole. 3 il.

Description

6ua A

FIG. g

with/

WITH

about

H

ate

.N

CJ

The invention relates to electrical engineering, in particular to electromagnetic switching devices: relays, contactors, remote switches, valve-type electromagnets, and the like. devices.

The aim of the invention is to simplify the design.

FIG. 1 shows a relay, longitudinal section; FIG. 2 is a view A of FIG. one; in FIG. 3, view B in FIG. one.

The electromagnetic relay contains a housing 1 in which a contact system 2 is placed, a core 3, a control coil 4, a PM 5 L-shaped, on one side of which a core with a control coil 4 is mounted, and the other side of the frame 5 is mounted on it b and the return spring 7 of the torsion, interacting with the rotary bark 6. The side of the frame 5, designed to install the rotary core 6, is provided with two L-shaped protrusions 8, directed towards each other and forming a groove 9 for installing the core 6 in it.

The return spring 7 of the torsion is installed with its cylindrical part so that the l-shaped protrusions 8 are placed inside the spring 7, with one end 10 of the spring 7 interacting with one of the fixed elements of the relay, in this case with the thruster 5, and the other end of the spring 7 interacting with the bark 6

In the bark 6, grooves are made symmetrically about its longitudinal axis, and the distance between the bases of the grooves is chosen corresponding to the distance between the bases of the L-shaped protrusions 8 of the frame 5. A cutout is made in the side surface of one of these grooves to accommodate the end of the return springs 7.

Electromagnetic relay operates as follows.

In the absence of current in the coil 5, the relay is in the initial state, while the bark 6 under the action of the force of the return spring 7 is located at a distance of the working stroke from the plane of the core 3. When a control signal is applied to the coil 4, creating a magnetic flux passing through the core 3, PMO 5, measles 6 is attracted to the core 3 and acts on the contact system, changing the state of the contacts.

When the control signal is removed from the coil 3, the bore 5 returns to the initial state under the force of the return spring 7.

The spring 7 at its end 11 presses the crust 6 against the rm 5, excluding the crust falling out,

By eliminating from the device auxiliary elements for fastening the core and the return spring and placing the spring on the L-shaped protrusions of the frame, the design of the electromagnetic relay is simplified and the core does not fall out.

Claims (2)

1. Electromagnetic relay containing a housing, a contact system located therein and a valve electromagnet, including an L-shaped rmo, a core with a control coil, rotatable the measles and the torsion return spring associated with the core and the fixed part of the relay, the core with the control coil mounted on one side of the frame, and the rotary measles on the other side of the frame, characterized in that, in order to simplify the construction, the side of the chassis, designed to install the rotary core, is made with two projections of the L-shaped form, directed towards each other and forming a groove for installing the rotary core in it, and the return spring is torsional nor installed so that the indicated i projections are L-shaped The torsion return spring hole, in the rotary bark, is symmetrically arranged with respect to its longitudinal axis, the grooves, and the distance between the bases of said slots is chosen corresponding to the distance between the bases of the projections of the L-shaped frame. 2. Relay according to claim 1, characterized in that the RMO is used as the fixed part of the relay, in the lateral surface One of the said grooves of the core is made a cut-out intended for installation in it of the end of the return torsion spring. FIG. VSHE B 1