Keyboard module and electronic device having the same

An electronic device comprising:

• a first body having a casing, the casing having a containing opening;
• a second body pivoted on the first body;
• a keyboard module contained in the containing opening of the casing, comprising:
• a bottom plate disposed within the casing and having a circuit disposed thereon or therebeneath;
• at least one elastic component disposed on the bottom plate or the circuit;
• a cover disposed movably up-and-down in the containing opening of the casing with respect to the casing and located above the bottom plate, wherein the cover has at least one opening respectively aligned to the elastic component;
• and
• at least one key cap respectively disposed on the corresponding elastic component, wherein at least a portion of the key cap protrudes from the corresponding opening so as to be pushed by a user, and at least another portion of the key cap interferes with the corresponding opening;
• and
• a driving member disposed on at least one of the first body and the second body, wherein the driving member is adapted to drive the cover to move from a first position towards the bottom plate to a second position, and drive the key cap to resist elasticity of the elastic component and move to shorten a distance between the key cap and the bottom plat;
• wherein when the driving member releases the cover, the cover is reset from the second position to the first position via elastic force of the elastic components.