SU16761A1 - Electric switch - Google Patents

Description

The second electrical switch shown in the drawing in perspective is one of the devices already known in which both contacts and counter contacts can be reset independently of each other and can be controlled by disconnecting devices.

Shown as push contacts

"Contacts 1 are controlled by means of fixed discs 4 mounted on a common shaft and rollers 5 rolling along them. The switching shaft can be turned using lever 6 in such a way that the contacts / either come into contact with their resistance contacts 7 or move away from them and burst the day current. Counter contacts 7 are rigidly connected to the insulated shaft 8, which is turned, both mechanically, by means of the lever 9, and electrically by means of an electromagnet 11, equipped with a gear 10, falling off the electromagnet winding from the net. When the atom lever 9 oadaad on uaor 18 in counter-withdrawals waste G right flowed that | Aiichnye current circuit, before their savxBy-.

those are disconnected. The winding of the interruption of the interrupting device of the electromagnet 11, as shown in the drawing, is connected to the network 12.

If the electromagnet IS must act not only as a disconnecting device, but also as an activating device, then its winding must be appropriately counted. However, such a winding, thanks to her post to constant power, consumes a lot of energy. Thus, it is more advantageous to include the contact contacts 7 not by means of an electromagnet, but by hand. A lever 16 is provided for this purpose. The lever 16 rotates on the axis 17s and returns the bark 10 to the upper initial position. In the case of the electromagnet 11 closing, the switch must ensure that it is impossible to turn on the protrusion contact 7, which could occur at any time, during the subsequent voltage s network, turn 1 ,. The rhythm of the warrior in the south of the world was laid out on the side of the opposition. In vvdu

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This requires an attachment to prevent the reverse connection of the protective contacts 7, while the contacts 1 are still in the activation position.

For this purpose, an electrical blocking is provided, consisting of two pairs of contact, 21 and S, 23, connected in parallel to each other in the circuit of electromagnet 11. The movable contact 22 is controlled by a shaped disk 24, installed in such a way that it closes contact 5S the time when the lever 6 is in the off position, the opposite contact 23 is fixed between the stops 26 and 87.

The contact 80 is resting between the stops 88 and 20, its contact S1 is made, under counter-contact 7, and, therefore, the circuit passing through the contact pair Sch / S, is interrupted when the switch is opened. If the armature 10 of electromagnet 11, in the absence of current in its winding, disappears, and the activation lever retains its switching position, then contact 81, due to the rotation of the shaft 8, moves away and thereby opens the electromagnet circuit, since the cycles 88 and -5 and this time disconnected. The electromagnet 11 can turn the switch-on shaft 8 to its original position only when the contacts 88 and 83 are closed, the latter is possible only when the lever 6 is turned into the switch-off position shown in the drawing.

In addition to electrical, it is also possible to "mechanically block the inclusion shaft." To this end, the inclusion lever 6 is connected with a thrust 30, a movable in the directional 31 38 38 s with a latch 33, the recess of which can include a roller 34 located at the end of the lever 35 that abuts the other 36 with its condom

if the activation lever 6 is in the off position shown in the drawing, then the roller 34 is above the notch of the latch 55 and, since the lever 55 connects through pull 57 to the lever 16, the latter can be released downwards, and the roles to 34 will go into the recess of the latch 55, the turning shaft 8 turning to the left. At other positions of the lever 6, the lever 16 cannot be moved downwards in the direction of the arrow and, thus, it becomes impossible to lift the core 0, turn on the contacts 7 and the contact 81.

Subject agent.

1. An electric switch with several pairs of contacts controlled from one common shaft, of which contacts in contact contacts can be reset independently of one another, characterized by change in order to prevent turning on contact disturbances. while the contacts 1 are in the switching position, the closing device consisting of mechanically connected with the shaft of the control of protpvokontaktov 7 kor 10, attracted by the electromagnet 11, the winding of which is connected through two parallel connected bunches of contacts 80, 81 and 88, 83, of which the movable contact 88 of one bunker is controlled by the control shaft of contacts 1, and the movable contact 81 of the other bunker is controlled by the control shaft of countercontacts 7.

2. The change described in c. 1 switch, characterized in that the closing device consists of mechanically connected to the control shaft — contacts Jf of the rod 30 with a latch 55, the recess of which includes the roller 34 of the lever 55 connected to the lever 16 control B1: 11 of the contacts 7 ..

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to the patent of the inn of the company „Plants Siemens Schukkert ack, 16761 /:; -i :: t