SU1298893A2 - Contactless selector switch with mechanical actuator - Google Patents

Abstract

The invention relates to computing, instrumentation and communication technology, is in addition to the author. St. 726666 and can be used to manually enter information from the keyboard into computers, automatic control systems, communication channels and typewriters. The purpose of the invention is to increase reliability. To do this, an additional source 12 of light is introduced into the device, an opaque shutter 11, which separates the primary 1 and the additional 12 IC (L with N).

Description

light points, timer 7, made for example in the form of a single vibrator, two light filters 9 and 10. The device includes a main source 1 of light, a light receiver 2, a movable rod 3, which has an opening 4, a light guide 5, the end of which is 6 body and is a button. Another end 8 of the light guide 5 partially ne1

The invention relates to computing, instrumentation, communication technology, can be used to manually enter information from the keyboard into computers, automatic control systems, communication channels and typewriter devices, as well as electrical circuit switches and is an improvement of the invention . St. No. 726666.

The purpose of the invention is to increase reliability by ensuring control of the function performed.

Fig. 1 is a circuit diagram of a switch; in fig. 2 - part of the design of the switch,

The switch contains the main source 1 of light, the light receiver 2, which can be, for example, a photodiode. On the movable rod 3 there is a hole 4, and in the direction perpendicular to the movement of the rod, a light guide 5 is installed, the end 6 of which is led out of the switch case and is a button. Timer 7 inputs are connected to the light receiver 2, the other end 8 of the light guide 5 partially overlaps the hole 4, blocked by light filters 9 and 10, the lightproof curtain 11 separates the main 1 and an additional 12 light sources. On board 13, there are contacts for connecting the load and timer 7, made, for example, in the form of a one-shot. The stem is fixed using a spring plate 14 and a bend 15 on the rod. The light filters 9 and 10, for example, red and green, respectively, overlap each half of the holes 4,. Along the joint of the light filters 9 and 10 along their joint is reinforced

closes the opening blocked by light filters 9 and 10; At the interface of light filters 9 and 10 along their joint, an opaque shutter 11 is perpendicular to the rod 3, the introduction of additional elements into the device with new interconnections allows the key to be illuminated when done functions, 2 Il.

the curtain 11 is perpendicular to the rod 3, spring-loaded spring 16, located in the housing 17.

In the initial state (while the switch is not turned on) the light flux from the light source 1 does not affect the light detector 2, and the light source 12 is de-energized. When you press the button 6, the light pipe 5 together with the rod 3

moves so that hole 4

installed between the light source 1 and the light receiver 2. In this case, the luminous flux passes through the hole 4 and forks, most of it affects the light receiver 2 and causes the switched circuit to turn on, and the other part of the luminous flux passes from the end 8 through the light guide 5, falls on

end 6, signaling the operation of the switch. In this case, the signal from the light receiver 2 causes the timer 7 to turn on, which produces a pulse for the recording time (for example, 5s), and an additional light source 12 connected to the timer output is turned on for this time.

The luminous flux of the source 12 of light through the light filter 10, stained in

green color, hits the light receiver 2 and the end 8 of the light guide 5, through which the light flux hits the end 6 of the light guide 5 and paints it in a greenish tint at the time of registration, then the timer 7 of the board 13 de-energizes the source 12 of the light,

So in the switch

non-contact switching of the electric circuit with simultaneous indication of switching on the switch

the circuit to be tested and the indication for the time of monitoring the performance of the function along the circuit switched by this switch. This reduces: the ambiguity of monitoring the true state of the commutation circuit in case of malfunctions of the Mechanical drive and the reliability of monitoring the performance of the function on this switch during operation is increased.

Introduction to the proposed timer switch, additional light emitter, opaque curtain, and two light filters allows, compared to the known, to light up the key according to the function performed, which increases the reliability of control of the switch operation and makes it possible to control the function performed.

988934

Claims (1)

Invention Formula Contactless switch with a mechanical drive on aut. St. 5 No. 726666, different so that, in order to improve reliability by ensuring control of the function performed, an additional light source was introduced, opto-blind, a timer and two light filters, the filters being mounted on the rod so that each of them is located on different halves of the rod, along the docking lines The f5 light filters parallel to the axis of the rod movement perpendicular to the surface of the rod between the main and additional light sources are opaque shutter, the timer input is connected to the light receiver, and the output is connected to the contacts of the additional light source. Compiled by L. Bagn Editor A. Kozoriz Tehred L. Serdkzkova Corrector A. Zimokosov Order 897/58 Circulation 902 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company ,. Uzhgorod, Projecto st., 4