SU938325A1

SU938325A1 - Switch with illumination

Info

Publication number: SU938325A1
Application number: SU803008445A
Authority: SU
Inventors: Владимир Александрович Драгунов
Original assignee: Предприятие П/Я В-2203
Priority date: 1980-11-26
Filing date: 1980-11-26
Publication date: 1982-06-23

Description

(54) ПЕРЕКЛЮЧАТЕЛЬ С ПОДСВЕТКОЙ(54) LIGHT SWITCH

1one

Изобретение относитс к электротехндосе , в частности к электрическим переключател м, приведение в действие контактов которых производитс при помощи поворота ручек и которые должны иметь отличительные метки дл указани местонахождени переключател в темноте.The invention relates to electrical equipment, in particular, to electric switches, which are actuated by turning the knobs and which should have distinctive marks to indicate the location of the switch in the dark.

Известен переключатель с подсветкой , содержащий светопровод с цилиндрическим отверстием, ось коммутационного элемента, размещенную в укагг занном цилиндрическом отверстии, на которой закреплена ручка управлени с прозрачным элементом световой индикации ГП.The illuminated switch is known, which contains a light guide with a cylindrical hole, an axis of the switching element placed in a fixed cylindrical hole, on which a control knob with a transparent element of the light display HPS is fixed.

Однако, так как между ручкой управлени и передней панелью блока неизбежен зазор, сбоку всегда будет видно ркое светопроницаемое кольцо вокруг оси перекпючател , меша работе оператора, так как ручка управлени имеет достаточную высоту, освещенность индикационного индексаHowever, since a gap is inevitable between the control knob and the front panel of the unit, a bright transparent ring around the axis of the overlap is always visible on the side, interfering with the work of the operator, since the control knob has sufficient height, the indication index illumination

будет заметно слабее освещенности шкалы переключател на передней панели 4It will be noticeably weaker than the illumination scale on the front panel

Также, в сипу того, что ручка имеет достаточную высоту, возможны ошибки в отсчете, если описываемое устройство будет находитьс сбоку от оператора.Also, due to the fact that the handle is of sufficient height, errors may occur in the readout if the device described is located to the side of the operator.

Все указанные недостатки снижают удобство пользовани этим устройством .All these disadvantages reduce the usability of this device.

Кроме того, недостатком устройства вл етс то, что не организован направленный световой поток, а испс льзуетс его рассе ние материалом ручки. Это обсто тельство значк тельно снижает ркость свече1ш индекса .In addition, the disadvantage of the device is that the directed luminous flux is not organized, but its scattering by the handle material is used. This circumstance significantly reduces the brightness of the candlestick index.

Цель изобретени - улучшение эксппуатацион свойств переключател .The purpose of the invention is to improve the operational properties of the switch.

Claims

The goal is achieved by the fact that in the illuminated switch, containing a light guide with a cylindrical hole, the axis of the switching element placed in the specified cylindrical hole, on which the control knob with a transparent light indication element is fixed, is fitted with a cutout and is installed in the handle so that then one of its parts is placed in the light guide and the face of this part, facing the light guide parallel to the generator of the cylindrical opening of the light guide, and the other part of the transparent light element The display indication protrudes above the light guide. Moreover, the transparent element of the light indication in the cross section has the shape of a square with a notch, the sides of which are located at an angle of 45 to the axis of the cocmutation element. The drawing. Shows the proposed switch with backlight. In the electric switch 1, the contacts are activated by means of a control knob 2 mounted on the axis of the switching element 3, which is placed in the cylindrical hole 4 of the wire 5, illuminated by lamps. The control knob 2 is made in a cap of opaque material. In the lower part 6 of the handle 2, a transparent display element 7 of light indication, made of a translucent material, is reinforced (for example, with the help of glue). It is in the form of a square with a cut in cross section. It is installed in the handle so that its sides are at an angle of 45 ° to the axis of the switching element. One of the parts of the transparent element of the light indication is placed in the light guide 5, and the face 8 of this part faces the light guide parallel to the generator of the light guide that is cylindrical from the leading, while the other part of the transparent element of the light indication acts above the light guide on one of the sides of the transparent light element the indication is marked index 9. The angle 10 is 90. When the switch 1 is operating, i.e. when rotating the control knob 2 on the axis of the switching element 3, the index 9 is set against the desired division of the switching scale on the light guide. At the same time, the lower part 6 of the control knob, together with the transparent element 7 of the light indication, rotates in the cylindrical hole 4 of the light guide 5, and the light flux passing through the light guide passes the face 8 of the transparent element of the light indication and, reflecting from its sides, falls on index 9 made him shine. The parallelism of the face 8 and forming a cylindrical hole 4 provides for the passage through it of the greater part of the luminous flux. The magnitude of the angle 10 determines the organization of the reflected flux fed to the index 9. The optimal angle value 10 is, as already indicated, 90. This angle value ensures uniformity of the index luminescence. An angle greater than 90 raises the end of the index above the scale of the switch to form an unwanted gap. An angle of less than 90 ° scatters a portion of the reflected light flux, with the result that the lower portion of the index is faint. Claim 1. An illuminated switch comprising a light guide with a cylindrical hole, an axis of the switching element placed in said cylindrical hole, on which a control knob with a variable light indication element is fixed, characterized in the transparent element of the light indication is made with a cut-out and installed, in the handle in such a way that one of its parts is placed in the light guide and the face of this part, facing the light guide, is parallel to binder lightguide cylindrical bore and another portion of the light transparent member yn q katsii protrudes over the lightguide.

2. A switch according to claim 1, characterized in that the transparent element of the light indication in section has the shape of a square with a peak, the sides of which are located at an angle of the axis of the switching element.