CS257107B1 - Device for contactless multistange signaling - Google Patents

Abstract

The purpose of the device is to simplify the design and increase the functional reliability of the device. The above purpose is achieved by a device consisting of permanent magnets arranged in rotatable pins mounted on a pin. Integrated circuits with a Hall sensor are arranged in the printed circuit board so that in the switched on state they are opposite the permanent magnets. The printed circuit board and integrated circuits are covered by a cover plate in which the light sources are arranged.

Description

The invention provides a device for contactless multi-state signaling.

Up-to-date reporting and signaling devices for dispersing activity control, use switches and pushbuttons with mechanical contacts, or multi-position rotary switches that do not allow multiple statuses to be reported simultaneously. The disadvantage of mechanical contact switches is their considerable failure rate, and in terms of safety and reliability they are unusable in demanding environments.

The above-mentioned disadvantages are eliminated by the device for contactless multi-state signaling according to the invention, which consists in the fact that it is formed by permanent magnets arranged in pivotable inches mounted on pins. In the printed circuit board, integrated circuits are provided with a helium probe such that, when switched on, they are opposed to permanent magnets. The printed circuit board and the integrated circuits are covered by a cover plate in which light sources are provided for signaling the closed state.

In particular, the advantages of the invention reside in the removal of mechanical contacts, the possibility of simultaneous reporting of multiple states, design and manufacturing simplicity, and the possibilities of use in difficult production conditions due to contactlessness, high reliability and mechanical resistance.

1 is a cross-sectional view of the apparatus and FIG. 2 shows a schematic diagram of the electrical connection.

Magnetic field sources - ferrite permanent magnets 1 are placed in inches 2 of non-magnetic material. The fingers 2 are rotatably mounted on the pin 3 at the same distances from each other as the integrated circuits 4 of the Hall probe are located on the circuit board 5. The locking of the two positions of the thumb 2, in the on and off state, is provided by the spring 6. In the on position of the thumb 2, the axis of the permanent magnet 1 is perpendicular to the surface of the integrated circuit 4 and passes through the center of its Hall probe. The integrated circuit 4 is controlled by the magnetic field of the permanent magnet 1 and its output is connected via a resistor 9 to a base transistor 10 which operates as a switch. When switched on, the LED 8 connected to the collector transistor lights up. The transistor can operate in dynamic or static mode, depending on how the power supply is connected. The number of inches 2 determines the number of states reported individually or simultaneously. The respective state is selected by rotating the corresponding thumb. 2 to the on position, with the functional surface of the thumb 2 and the permanent magnet 1 touching the cover 7.

Claims (1)

SUBJECT Non-contact multi-position signaling device characterized in that it consists of permanent magnets (1) placed in inches (2) rotatably mounted on a pin (3), the integrated circuit (4) with Hall probe being provided in the printed circuit board (5j) , set against permanent YNAIEZU by a magnet (1j) whose axis is perpendicular to the area of the integrated circuits (4j), the circuit board (5j and the integrated circuits (4) being covered by a cover plate (7) in which the light sources (8) are provided .