SU16293A1 - Electromagnetic stop - Google Patents

Description

The present invention relates to an electromagnetic limiter device, in which, with the aim of eliminating the possibility of contacts, one of them is made of an electromagnet, and the other is a flat spring, which, when passing through the current limiter, is excessive at the same time as moving the core. by virtue of the elongation of the metal thread holding the spring indicated in the engaged position,

In the schematic drawing of FIG. Figure 1 shows the Upper View of the Preferred Led and the 1st 1Y switch; FIG. 2 is a section along the line AB in FIG. one; FIG. 3- part of his device.,

A horseshoe-shaped elektrbm is installed on the made of insulating material of the basis of the 1 st limiter, rotates 11, 13, to the iron 1 of which is attached a spring 2 measles 3 from angular iron (Fig. 3). Above the latter a flat spring 5 is bent (fig. 1 and 2), strengthened, by screw 6 on the base of 1 limiter AND in contact with YOUR end 7 with the upper part

cor 3; The said spring is held in the switched on position by means of a metallic (from nickel, constantan or nickel chrome) thread 8–9 attached to it at the beginning, connected in series to the consumption circuit. The second end of the THREAD is fixed at the contact 10 installed on the base 1.

The winding of the electromagnet 11 is at one end of the adventure to contact 12, and the other is connected to zhedez 13.

The current through the contact 12 passes through the winding of the electromagnet 11, the iron of the electromagnet 13, the contact screw 4, the spring 2, the measles 3, the spring 5 AND THREAD into the contact 10 .;

With the passage of a current of excessive force through the THREAD, the latter is heated up and lengthened AND releases the spring 5 to the fastened position. on the figure .2 dotted line. At the same time, the bark 3 is attracted to the iron of the electromagnet 13. As a result, the contact between the end 7 of the spring 5 and the cortex 3 is broken, which is supposed to reduce the possibility of soldering the contacts 7 and 3;

The subject of the patent.

Electromagnetic limiter, hara. One of these contacts is the electromagnet 3, and the other is a bent spring 5, which is fixed at one end of the switch and held in the on position. With the help of tensioned metal, connected in series to the chain of consumption, the thread intended for its elongation, due to dropping through the overcurrent of an excessive force, simultaneously with the movement of the core, release the spring 5 opening the current circuit.