SPLASHPROOF BUTTON SWITCH WITH BUILT-IN HIGHLIGHTING Russian patent published in 2010 - IPC H01H9/04 

FIELD: electrical engineering.

SUBSTANCE: invention relates to electrical engineering, particularly to switching hardware that complies with high splash- and waterproof requirements and can be used in I/O devices at aircraft and vehicles operated in high humidity conditions. Proposed device comprises button 1, case 2, membrane 3 and return spring 4. Membrane 3 is clamped in slot of case 3 depressed by button 1 and return spring 4. Light emitted by LED 6 gets in button 1 and indirect light modulator to highlight signs of said modulator. Proposed device reliably protects circuit board 7 against splashes at minor travel of button 1 to operation of switch 5.

EFFECT: splash protection of button switch with built-in highlighting.

4 cl, 5 dwg