Shielding enclosures

A shielding enclosure comprising:

• a frame including vertically extending sidewalls and horizontally inwardly extending lateral flanges therefrom, the lateral flanges defining a top opening of the frame and including outwardly extending detent legs, the frame including sidewall openings under the detent legs such that the detent legs form cantilever structures above the sidewall openings;
• and
• a lid including a top portion for covering the top opening of the frame, flanges downwardly extending from edges of the top portion, and detent slots on at least one of the flanges, wherein each side of the lid has a plurality of the flanges and cutouts are formed between adjacent flanges such that the flanges form contact springs;
• wherein upwardly extending flanges are not provided on the frame and the lid of the shielding enclosure;
• whereby when the lid is installed on the frame:
• the detent legs of the frame extend into the detent slots;
• bottom surfaces of the detent legs contact bottom surfaces of the detent slots;
• and
• the flanges, serving as contact springs, are in elastic contact with an outer surface of the sidewalls of the frame with an elastic force.

A shielding enclosure comprising:

• a frame including vertically extending sidewalls and horizontally inwardly extending lateral flanges therefrom, the lateral flanges defining a top opening of the frame and including outwardly extending detent legs, the frame including sidewall openings under the detent legs such that the detent legs form cantilever structures above the sidewall openings;
• and
• a lid including a top portion for covering the top opening of the frame, flanges downwardly extending from edges of the top portion, and detent protrusions on at least one of the flanges protruding inwardly relative to the lid, wherein each side of the lid has a plurality of the flanges and cutouts are formed between adjacent flanges such that the flanges form contact springs;
• wherein upwardly extending flanges are not provided on the frame and the lid of the shielding enclosure;
• and
• whereby when the lid is installed on the frame, the detent protrusions engage the detent legs from underneath such that the detent legs are wedged between the lid's top portion and the detent protrusions and the flanges, serving as contact springs, contact with the sidewalls of the frame with an elastic force.