SU1417063A1 - Rotary swyitch - Google Patents

Abstract

The invention relates to electrical engineering and can be used in miniature electronic equipment. The goal is to reduce the size and simplify the design of the switch. Contact springs 4, one branch 5 of which is straight, are installed in grooves 2 on the cylindrical housing 1. In the housing 1 there is a cylindrical swivel element 8 having flats 9 on its lateral surface. The straight branch 5 of the contact springs 4 interacts with the closing contact plates 10 fixed on the flats 9, thereby ensuring electrical contact and fixing the position of the rotary element. 4 il. §

Description

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Oh oh

with

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figure 1

The invention relates to electrical engineering, in particular, to switches, intended for switching electrical circuits of direct and alternating currents in a portable mini-electronic electronic equipment.

1 The purpose of the invention is to simplify the structureKUHH and reduce the size, i FIG. 1 shows a switch; FIG. 2 is a horizontal projection of the switch; in fig. 3 is a section A-A in FIG. 2; in fig. 4 - rotary transmission drive switch.

The switch consists of a housing 1 in the form of a hollow cylinder (Fig.), On the outer | The surfaces of which are slotted tjbie groove 2, and opposite them groove 3, {Y-shaped contact springs 4, one straight branch 5 of which is laid in groove 3, and the other curved 6 - bends around the bottom of the groove 2 and has an end for soldering , with the spring loop 7 connecting the direct return 5 and the branch 6, stands for the dimensions of the body. The rotary actuator element 8 is cylindrical and mounted inside housing 1. On the cylindrical surface of the rotary actuator element, face 9, on the plane of which contact plates 10 are attached, interacting with fixed spring contacts. One of the ends of the rotary actuator 8 is designed as an axis 11 under the control handle (Fig. 2), and at the other end there is an annular locking groove 12 for installing a straight branch 5 of the spring 4 in it to prevent the axial rotation of the rotary element relative to the housing. Fig. 3). The electrical connection of the locking plates 10, mounted on the flats, is carried out with the help of conductors laid with B grooves 13 on qi: 1 of the rotating surface of the rotary-drive element (Fig. 4).

In the design, the force of fixation of the drive-lioro element is strictly determined depending on the number of contacts, as well as spring-loaded non-contact contacts, when interacting with the bald drive element, form a fixed -Dinee device That is, when the number of fixed contacts is changed,. ijiic fixings.

In this switch, the stationary and dinner contacts have some free-: | 1 interference, i.e., they are self-adjusting. Therefore, a clear and complete contact of the contact plates and fixed contacts occurs precisely at the moment of fixed position of the movable drive element.

In order to avoid rotation of the fixed contact following the rotation of the movable element, the radius of the sipe-like groove on the housing is greater than the outer radius

surface housing. This allows the fixed contacts to be reliably fixed, giving them some freedom of rotation around the axis for self-adjustment.

The implementation of the groove 12 allows to simplify the system of axial fixation, as well as the assembly

and disassembly switch.

This switch can be made according to the scheme (/ i-positions, I-directions), and can also be used in special switching circuits, when any contact can be shorted with others in any combination.

Claims (1)

Invention Formula A rotary switch comprising a housing, a cylindrical dielectric actuator with contact plates mounted rotatably, and spring fixed contacts, characterized in that, in order to simplify the design and reduce the dimensions, the housing is made in the form of a hollow cylinder, the outer side surface of which is slotted grooves and segmental grooves located opposite the specified slot-shaped grooves, each spring the fixed contact is made L-shaped, one branch of which is straight and the other curved, and the drive element is made with an annular locking groove and flat on the side surface on which the contact plates are fixed, while the drive element is mounted in the housing so that that each fixed spring contact with its bent branch is placed in one of the slotted grooves of the body, and the straight one is inserted into its corresponding segment groove with the possibility of interaction with one of the contact plates, moreover th least one stationary spring contacts arranged as straight branch in its circumferential groove of the drive member. t --- H T / four fi.e sri-, 4