Waterproof electric switch assembly

A waterproof electric push button switch assembly comprising:

• a closed compartment;
• and
• a printed circuit board supporting an electronic switch component with a push button housed inside said closed compartment, said printed circuit board having connected thereto electric cables coming out of the compartment,
• wherein the closed compartment is defined inside a casing comprising a cavity with two openings, a first opening which is hermetically sealed by a compressible elastomeric body having a portion which is arranged facing said push button part of the electronic switch component, the compressible elastomeric body being attached to said casing, and a second opening is hermetically sealed by a cover,
• said first and second openings are arranged opposite one another.
• said compressible elastomeric body extends partially into the cavity of the casing providing an inner portion with an annular flange which is placed against an inner face of the casing adjacent to the first opening of the casing;
• the printed circuit board bearing said electronic switch component is fitted in a recessed portion of said compressible elastomeric body;
• and
• the cover comprises on its inner face at least one tubular wall which is inserted into the cavity of the casing and establishes with a free edge thereof a perimetral interference contact with said surface of the elastomeric body, this tubular wall of the cover completely surrounding the electronic switch component and assuring its waterproofness, and
• wherein said two insulated electrical conductors come out through a side window of the casing which is occupied by an extension of said elastomeric body and through which said insulated electrical conductors pass.