RU60787U1 - ELECTROMAGNETIC RELAY - Google Patents

Abstract

An electromagnetic relay refers to electrical engineering and can be used in enterprises of the electrical and automotive industries. The proposal allows to improve manufacturability and accuracy of assembly, reliability. The relay consists of a vertically arranged yoke 1, on which the core 2 is fixed. On the core 2 there is a frame 3 with a winding 4. On the horizontal plane of the yoke 5 along the axis of symmetry are convexes 6. The horizontal plane of the spring 7 is made with a longitudinal groove 8, which is aligned with the convexes 6. An anchor 9 is installed on the spring 9. Pin 10 is made integral with the vertical plane 11 of yoke 1. On the contact spring 7 there is a movable contact part 12 interacting with the fixed contact parts 13, 14. FIG. 3. Publish figure 1.

Description

The utility model relates to electrical engineering and can be used at enterprises of the electrical and automotive industries in the manufacture of small-sized electromagnetic relays.

Known electromagnetic relay for printed circuit boards of a series 114, 37.37, manufactured by the Pskov plant "Autoelectroarmature" TU 37.003.1127-82. See factory product catalog, ed. Vneshtorgizdat No. LO 5767/6 p. 10.

The relay includes a L-shaped yoke on which a core is mounted with a control coil with a frame fixed to it, an armature with a contact spring of a movable contact. The movable contact part is mounted on a spring. The relay contains fixed contacts.

The disadvantages of the relay are:

- L-shaped yoke is located horizontally;

- significant weight - 20 g. and dimensions - 26 mm; 24.6 mm; 16.5 mm.

It is known electromagnetic relay 98.3747., Issued by JSC "Autoelectroarmature" in the city of Pskov, certificate for PM of the Russian Federation No. 11390 7 MKI HO 1 H 51/00, 51/06.

The relay consists of a L-shaped yoke, a core is fixed to the yoke. A core with a control winding is installed on the core. On the yoke

a contact spring with a movable contact part is installed. The frame has a flange. A hole is made in the flange in which pins with fixed contact parts are installed. Pins for connecting the control winding are installed in the holes. The relay has a base in which the frame assembly is installed. The groove in the base is for installing a resistor. The yoke has a pin. The contact spring is anchored. The control winding is wired with pins.

The relay has insufficient rigidity. The insufficient size of the movable contact part does not allow currents to pass more than 15 A at a voltage of not more than 12 V.

A small-sized electromagnetic relay is known, see the utility model R.F. No. 19214 application No. 200108978/20 from 04.04.2001, publ. Bull. No.22 of 08/10/2001

A small-sized electromagnetic relay containing a vertically arranged L-shaped yoke with a core, on which a coil frame with a control winding, an armature with a contact spring and a movable contact, fixed contact parts, one of the ends of the contact spring is fixed to the horizontal part of the yoke and is made with a longitudinal groove along its axis of symmetry. On the horizontal part of the L-shaped yoke a longitudinal groove is made along the axis of symmetry, combined with the groove of the contact spring.

This relay is taken as a prototype.

The relay has disadvantages.

- there is no explanation of how the contact spring is connected to the yoke.

- the relay is not technologically advanced, since there is no reliable orientation when assembling the yoke with a spring, which leads to distortions of the movable contact with the armature.

As a result of this, the contact does not work reliably and, when shaken, the contact randomly opens.

These shortcomings do not allow to achieve the technical result created by the proposed utility model.

The technical result - improving reliability, manufacturability, reducing weight and dimensions - in the proposed facility is achieved by the following set of essential features having a causal relationship with the technical result.

The L-shaped yoke is located vertically, the core with the control coil is located on the vertical part of the L-shaped yoke in such a way that its longitudinal axis is parallel to the horizontal part of the yoke, guide convexes are made on the longitudinal axis of symmetry of the horizontal part of the yoke. The end of the contact spring is mounted on the horizontal part of the yoke, is made with a longitudinal groove along the axis of symmetry and is located relative to the yoke so that the said convexes and the longitudinal groove are aligned with each other.

The above set of essential features in comparison with the prior art allows us to conclude that the proposed technical solution meets the criterion of "novelty."

Figure 1 shows the proposed relay, General view:

figure 2 - the proposed relay, view A;

figure 3 - the proposed relay, view B.

The electromagnetic relay consists of a vertically arranged L-shaped yoke 1, a core 2 is fixed on the vertical part of the yoke so that its longitudinal axis is parallel to the horizontal part of the yoke. On the core 2 there is a frame 3 with a relay control winding 4. On the horizontal part 5 of yoke 1 along the longitudinal axis of symmetry, guide convexes are made 6. The end of the contact spring 7 mounted on the horizontal part of the yoke is made with a longitudinal groove 8 along the axis of symmetry and is located relative to the yoke so that the bulges and the longitudinal groove are aligned with each other. An anchor 9 is mounted on the contact spring 7. The output 10 is made integral with the vertical part II of the yoke I. On the contact spring 7 there is a movable contact part 12 interacting with the fixed contact parts 13, 14 or one of them.

In the process of assembling the relay, the spring 7 with a groove 8 is installed on the convexes 6, then welding is performed. This allows you to install the spring 7 in

within tolerances, eliminate distortions during the operation of contact parts 13, 14. This achieves the technical result of the proposed utility model.

The relay operates as follows.

The relay is mounted on the circuit board of the alarm switch. Through the contacts (not shown) voltage is applied to the relay coil 4. The core 2 attracts the armature 9. The movable contact part 12 opens the circuit with the fixed contact part 13. Current flows to the movable contact part 12 through terminal 10.

The proposed facility has the following advantages:

- increased reliability and stability;

- increased manufacturability and accuracy of assembly;

- failure tests were conducted in the amount of 236 hours: 200 hours - in normal mode, 36 hours - in emergency mode with doubled load on the contacts;

- reduced the complexity of adjusting the relay;

- significantly reduced material consumption (saving of ferrous and non-ferrous metals, plastics).

Claims (1)

An electromagnetic relay containing a T-shaped yoke with a core on which a frame with a control winding, an armature with a contact spring and a movable contact part and fixed contact parts are mounted, one of the ends of the contact spring being installed on the horizontal part of the yoke, characterized in that The L-shaped yoke is located vertically, the core with the control coil is located on the vertical part of the L-shaped yoke in such a way that its longitudinal axis is parallel to the horizontal part of the yoke, on the longitudinal axis of symmetry horiz On the other side of the yoke, guide convexes are made, the end of the contact spring mounted on the horizontal part of the yoke, made with a longitudinal groove along its axis of symmetry, is located relative to the yoke so that the said convex and the longitudinal groove are aligned with each other.