SU364979A1 - RELAY ON MAGNETIC CONTROL CONTACT - Google Patents

Description

one

The proposed relay on magnetically controlled contacts can be used in automation systems, computer engineering and other engineering fields.

Relays are known on magnetically operated contacts, in which the fastening is carried out in whole or in part by means of parts made of a shock-absorbing (elastic) material.

In such relays, the central part of the ampoule of the magnetically controlled contact is placed in the winding, and only the ends of the ampoule with leads are covered with an elastic rubber-like material. A winding and elastic rubber-like material surrounds an epoxy-type sealing material. At the same time, an elastic rubber-like material was introduced in order to perceive internal stresses arising during the polymerization of epoxy resin. Since, in the known construction of the relay, there is no possibility of displacing the ampoule of a magnetically controlled contact at the time of an increased mechanical effect, such as striking across the axis of the magnetically controlled contact, considerable forces can be applied to it, and hence the deformation of the contact plates, the loss of the magnetically controlled contact .

In other relays, the amnula of a magnetically controlled contact is covered along the edges by two elastic rubber rings adjacent to the inner wall of the frame of the roller.

However, in the known relay, the outputs of the magnetically controlled contacts enter without a gap into the slots of the base and are intended for soldering (rigid mounting) in printed wiring boards. The input of elastic elements is intended to protect the magnetically controlled contacts from mechanical stresses arising during installation or disassembly on the boards. At the same time, the shock-absorbing effect of the rezip rings located at the ends of the ampoule is insufficient, and the relay design, when installed on a printed wiring board, does not protect the magnetically controlled contacts from elevated mechanical influences.

The design of relays on magnetically controlled contacts containing magnetic circuits is known.

The aim of the invention is to protect the relay from increased mechanical effects while simplifying

relay design.

This is achieved by making the fastener from a cushioning material in the form of a ring located along the length of the magnetically controlled contacts and provided with holes for reinforcing the cushioning action, i.e.

storing and arranging flexible wiring so that it provides free elastic movement of the magnetically controlled contacts in all directions. In order to increase the sensitivity of the relay, the housing is provided with a protrusion, inside of which, at a distance ensuring the free elastic movement of the magnetically controlled contacts, their outputs are placed, so that the housing is at the same time part of the magnetic circuit, the protective case and the screen from external magnetic fields.

FIG. 1 shows the proposed relay on magnetic contacts; in fig. 2 is a section along LL in FIG. one.

The relay contains a winding 1 on a round frame 2 of insulating material. The magnetic circuit of the relay includes 3 n 4 cylindrical parts located inside the frame 2, as well as the case 5, made of a magnet of a soft material. The configuration of the housing 5 and the parts 5 and 4 of the magnetic circuit ensures their tight contact with each other over a considerable area, which determines the low resistance of the control magnetic flux.

Magnetically controlled contacts 6 are located inside the frame 2 with parts of 3 to 4 magnetic cores, and their fastening is carried out by means of a fastener 7 of a shock-absorbing material, such as a silpen or silicone sponge, which have good adhesion to the surfaces of the relay parts.

The lugging part 7 is made in the form of a ring located along the length of the magnetically controlled contacts 6, for example, symmetrical with respect to their center of gravity, and has a central hole 8 and a hole 9 located along the periphery of the fastener.

Spaces free from depreciation material inside the protrusion 10 of the housing 5 of the relay and inside the terminal block 11 form mounting cavities in which the terminals 12 of the magnetically controlled contacts 6 and flexible installation wires, the installation wires coming from the conclusions of the magnetic contacts 6 located inside the protrusion 10 of the housing 5 to contact points. The relay 13 is placed in the holes of the fastener 7. The frame 2 to the body 5 of the relay is attached by means of a screw thread, and the pad 11 by means of threaded rods 14. The relay is equipped with a flange 15 for mounting it in the equipment.

The relay works as follows. When power is applied to the winding 1, a control flow is created, due to the rupture in the magnetic circuit between parts 3 and 4 above the overlapping area of the contact plates of the magnetically controlled contacts 6, to the specified area.

The input of the protrusion 10 in the housing 5, inside of which and in the immediate vicinity of it, are placed the conclusions 12 of the magnetically controlled

contacts 6, as well as the supply of dissipation flows in the relay to the specified terminals. Due to this, the magnetic flux level of the control winding 1, passing through the magnetic flux of the control winding 1, increases through the magnetically soft contact plates of the magnetically controlled contacts 6 to the area of their overlap. This configuration of the magnetic circuit of the relay, including parts 3,

4 and the housing 5 provides the maximum concentration of the control magnetic field in the zone of overlap of the contact plates of the magnetically controlled contacts 6, which determines the lower level of control power required for the NC circuit when power is applied to the winding 1, and as a result, the possibility of reducing the size of the winding and relay in general. At the same time, case 5 ensures protection of the relay against

external magnetic fields, and also serves as a protective cover.

The impact of new mechanical loads (impact) does not disrupt the normal operation of the relay and does not cause changes in its characteristics, since the Magnetic contacts 6 have the opportunity of free elastic movement due to their placement in the damping material. The terminals 12 of the magnetically controlled contacts 6 are placed in the free cavities, and the flexible wiring wires do not prevent their movement. After the end of the impact, the magnetic contacts 6 return to their original position.

At the same time, such fastening of the magnetically controlled contacts determines the optimal layout of the relay when it is placed inside the winding / required number of contacts 6, i.e., smaller dimensions and a simple relay design.

Subject invention

Claims (2)

1. A relay on magnetically controlled contacts, containing one or more magnetically controlled contacts enclosed in sealed ampoules, a winding, a housing and parts of a magnetic circuit made of a soft magnetic material, a fastener made of a shock-absorbing material, and a terminal strip, which is designed to protect it from new mechanical effects and simplify the design of the relay, the fastener is made in the form of a ring located along the length of the magnetically controlled contacts and provided with holes to enhance the damping -acting positioning and flexible wires so that when this elastic movement is provided free magnitoupravl proxy contacts in all directions. 2. The relay according to claim 1, characterized by a m, that, in order to increase the sensitivity of the relay, the housing is provided with a protrusion from the side opposite to the terminal block. AjL rj