SU943884A1 - Change-over switch - Google Patents

Description

(54) SWITCH

The invention relates to electrical engineering, in particular to devices for switching high-voltage and high-frequency circuits, and can be used in electronic equipment, for example, for switching antenna circuits.

A known switch comprising a housing in which, with the help of axles, a stator is installed, made in the form of two plates, each of which has fixed contacts, a rotor with moving contacts, the axis of rotation of which is installed in the stator plates, and a spring fixation element interacting with the stator and rotor. The rotor is made of two cylindrical blocks of electrically insulating material mounted on a metal axis. The movable contacts, which are cantilever-mounted on each of the rotor's pads, are interconnected by conductive bridges to close the fixed contacts tl located on one stator plate.

However, this device has a complex structure, a complicated technology of assembly due to the large number of parts and means of their fastening, moreover, given the

Electric strength does not have the ability to reduce dimensions.

There are also known switches containing a stator consisting of two short-circuit plates of insulating material, each of which has fixed contacts, a rotor made in the form of a disc of insulating material with moving contacts on the ends, conductive jumpers

10 and an axis mounted rotatably in the stator plates, a spring fixation element and a control element 2.

Such switches also have

15 rather complicated structure and considerable size.

The purpose of the invention is to simplify and reduce the size.

For this purpose, in a switch containing a stator consisting of two plates of insulating material, each of which has fixed contacts, a rotor made in the form of a disk of insulating

Claims (2)

25 of the material with movable contacts at the ends, conductive bridges and an axis installed in the stator plates can be rotated, a spring fixation element and a guide element, each stator plate has the shape of a segment and flanging with a hole, the rotor is made with bores for bridges and with grooves On the side surface for interacting with the spring fixation element, and on the side opposite to the grooves, a control element is placed, said stator plates are mounted so that their flanges are connected between the assembly minutes, and in the apertures in the spring eyelet installed conductive fixing member, wherein the movable contacts arranged on opposite ends of the rotor are connected pairwise Conductive jumpers. Fig. 1 shows a three-position switch in one of the working positions of the rotor, a general view; figure 2 - section aa in figure 1; Fig. 3 shows a switch with the stator plate removed in the neutral position of the rotor, a general view. The switch contains a stator 1, made in the form of two plates 2 and 3 of insulating material, each of which has the shape of a segment and flanging 4 or 5 with a hole 6 Flaps 4 and 5 of plates 2 and 3 are connected to each other, and in the flanging holes are installed spring fixation element 7. Fixed contacts 8 and 9 are pressed into plates 2 and 3; their contact points are in grooves 10 made on inner cTOpOHcix plates 2 and 3 of stator 1. The rotor 11 is made in the form of a disk made of electrically insulating material. At the opposite ends of the rotor 11, there are movable contacts 12, which are spring-loaded and are connected in pairs by conductive bridges 13 made of an elastic material. The bridges 13 are placed in the through holes of the rotor 11. The contact pads of the movable contacts 12 are hemispherical in shape, and the contact pads of the fixed contacts are made with bevels to provide the necessary contact (not shown). The rotor 11 is made with an axis 15 inserted into the corresponding grooves 16 of the plates 2 and 3 of the stator 1. This both rotates the fixing of the rotor 11 in the stator 1. On. the cylindrical surface of the rotor 11 on the one hand has a control in the form of a protrusion 17 for moving the rotor 11, on the other hand - grooves 18, which include a spring fixation element 7. For fixing the switch in the device, the stator 1 has 19 holes in the flanges 20. The technological assembly of the switch consists of the following main operations: installing the rotor on one of the stator plates, installing a spring fixation element between the stator and the rotor, installing the upper stator plate and attaching the stator plates between itself , For example using epoxy resin. The device works as follows. In the neutral middle position, the fixed contacts 8 and 9 of the switch are open. The spring clamp 7 interacts with the middle groove 18 of the rotor 11. When switching to one of the working positions, the rotor 11 moves clockwise or counterclockwise, the spring clamp 7 enters one of the slots 18 / moving contacts 12 closes the fixed contacts B and 9. In another embodiment, the grooves 18 are provided on the inner surface of the stator / and the holes for mounting the ends of the spring fixation element 7 on the side surface of the rotor (not shown). Claims with a stator / consisting of two plates of insulating material, each of which has fixed contacts / rotor, made in the form of a disk of insulating material with movable contacts on the ends, conductive baffles and an axis installed in the stator plates rotatably, a spring fixation element and a control, characterized in that, in order to simplify the construction and reduce the dimensions, each stator plate has the shape of a segment and flanging with a hole, the rotor is made with holes for bridges and with grooves on the side surface to interact with the spring fixation element, and on the side opposite to the grooves a control element is placed, said stator plates are mounted so that their flanges are interconnected, A spring fixation element is installed in the holes on the flanges1; in this case the movable contacts located on the opposite ends of the rotor are connected by a pair of conductive bridges. Sources of information taken into account in the examination 1. The author's certificate of the USSR 221782, cl. And 01 H 19/56, 1966. 2. Authors certificate of USSR 653376, cl. H 01 H 19/58, 1944. V / x Ik 1 9 10 A-A 0 / 7 J a tt 9 U9i