Button switch components for home appliances

Abstract

The invention discloses a button switch component used in a domestic electric appliance. The button switch component comprises a button part with a plurality of buttons and a switch part with a box body, wherein the switch part comprises a switch circuit board arranged inside the box body; light sources corresponding to the buttons are arranged on the switch circuit board. The button switch component is characterized by further comprising an anti-optical crosstalk base, wherein notch bases which correspond to the light sources and used for isolating light are arranged on the anti-optical crosstalk base at intervals; the light sources are positioned inside the notches of the notch bases; a light permeation part is arranged on the surface of each notch base; through holes through which press contacts of the button part penetrate are formed in the center of the light permeation parts; switch contacts corresponding to the press contacts are arranged on the switch circuit board. Due to arrangement of the anti-optical crosstalk bases among each group of the light sources, the phenomenon of optical crosstalk of the light sources is effectively eliminated, the buttons corresponding to the light sources can be normally displayed, and mal-judgment or mal-operation caused by display mistakes is avoided.

Description

technical field [0001] The invention relates to a switch, in particular to a button switch assembly for household appliances. Background technique [0002] Button switches have a wide range of applications, such as being installed on the control panels of household appliances to control the operation of appliances. For example, a switch for controlling the working state and related parameters of the range hood is arranged on the front panel of the range hood, and the switch is installed in the space formed between the front panel and the side wall of the fume collecting hood. In order to make the pattern on the switch key emit light or set other indicator lights on the switch to indicate functions, a light source is usually arranged in the switch assembly. [0003] For example, the Chinese patent application number 201120564515.6 discloses a switch structure that realizes button indication through optical refraction. The housing is equipped with a plurality of light-transmi...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned switch structures have a plurality of switch buttons and light-emitting parts corresponding to the buttons, and the buttons are arranged densely. Therefore, when one of the buttons is pressed to make the light-emitting parts emit light, the emitted light is easy to be emitted from the adjacent The button is exposed, that is, the phenomenon of light crosstalk between adjacent buttons is prone to occur, which will cause the function information on the corresponding button to not be displayed normally or cause the function information on multiple buttons to light up at the same time, affecting normal use. It is easy for the operator to misjudge the button being operated

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