DE379422C - Drop flap relay for the control of heavy current - Google Patents

Description

GERMAN EMPIRE

ISSUED AUGUST 22, 1923

REICH PATENT OFFICE

PATENT LETTERING

- JVr 379422 CLASS 21c GROUP 41

(S ₅₉ G ₉₄ VIII / 2ICV

Siemens & Halske Akt-Ges. in Siemensstadt b. Berlin*).

Drop flap relay for the control of heavy current.

Patented in the German Empire from 5th! Hai 1922.

In the known in telephone and telecommunications systems, with low current or Up to now it has not been possible to use inductor current operated drop flap relays in a flawless manner Way to control power circuits. if

also occasionally stronger contacts are used to switch on high voltage currents have been, the structure and the contacting of the relay did not correspond to the heavy current regulations.

* J The following have been named as inventors by the patent seeker:

Gustav Wet \ el and Ernst Mies in Charlottenbiirg.

879422

According to the invention, these regulations are taken into account and a momentary one Switching on and off the high-voltage current is achieved by the fact that the current circuit is caused by the weight of the falling flap when the relay responds and the power is interrupted by the force of a Movement of the reset lever tensioned spring can be effected. ι

ίο In the figures, an embodiment of the subject matter of the invention is illustrated. Fig. Ι shows the relay with an erect, Fig. 2 the same with i dropped out Flap.

The arm 1 provided with the flap vane 20 is rotatably mounted on an axis 2 and is held in an upright position by the armature 3. For this purpose, a pin 4 provided with a small flat surface is attached to the arm 1, which pin 4 rests in the raised position of the flag 20 on a projection 21 of the anchor. A second dotted pin 5 is used instead of pin 4 when the relay is used for closed-circuit operation. The movement of the armature is caused by an electromagnet 6, which can be designed as a pot magnet or in any other way. On the axis 2, another arm 7 is rotatably arranged, with which an insulating piece 8 and a small pin 9 are rigidly connected. A spring 10 strives to draw both arms 1 and 7 '< together in such a way that the insulating piece 8 rests against a stop 1 i. On the insulation pieces a contact blade 12 is fixed, \ the on falling trapdoor with fixed con-! clock springs 13 comes into engagement. The contacts 12 and 13 intended for switching on high current are made in the manner of knife switches. The knife 12 is U-shaped in the case of a single-pole design and falls into two springs 13 arranged at a greater distance from one another, whereby the current path is established from one spring via the contact knife to the second spring. The switching device can also be designed with two poles. \

To reset the flap, a two-armed reset lever 14 is used, which is a Axis 15 is rotatable. A spring 16 holds the lever in the rest position against a stop 17. A bow piece r8 is attached to the short lever arm, which when pressed down of the reset lever 14 engages over the pin 9 of the lever arm 7 (Fig. 2) and this locks against the train of the spring 10. At the same time, the end 22 of the lever 14 presses against it a cam 19 of the fall flap arm 1 and lifts it until the pin 4 is behind the Anchor projection 21 occurs and the movement is inhibited at a stop 23 (Fig. 1). The spring 10 experiences a strong tension during this movement and tears the Arm 7 with the contact knife 12 at the moment momentarily out of the contacts 13. where the pin 9 leaves the bend 18. After releasing the parking lever 14 returns this returns to its end position, and the idle state for the relay is brought about again (Fig. 1).

Claims (3)

Patent claim i / c 11 κ: 1. Drop flap relay for the control of heavy current, characterized in that that the circuit is short-circuited by the fall of the flap released by the relay armature (3 ") (20) and when resetting the flap, the current interruption by means of a movement of the reset lever (14) tensioned spring (10) takes place. 2. Fall flap relay according to claim 1, characterized in that the input and Switching off the high-voltage circuit at a knife switch (12, 13) takes place, the has a sufficiently large stroke to enable the switch to switch high-voltage currents to be able to use. 3. Fall flap relay according to claim 2, characterized in that the movable The contact part (12) of the knife switch is connected to the drop flap arm (1) by a spring (10) and during the movement of the reset lever (14) is initially held by this until the end the lifting movement of the drop flap arm (1) triggers the lock (9, 18) and The knife switch suddenly opens due to the tensioned connecting spring (io) will. 1 sheet of drawings.