Electromagnetic protection box e.g. cylinder shaped electromagnetic protection box, for electronic device, has transversal wall with return provided from folding of extension of longitudinal wall for forming corner

摘要

The box has parallelepiped shaped metallic hollow folded sheet elements e.g. cover (A) and base (B), that are encased together and having parallelepiped shaped cavities (1A, 1B). The cover is provided with longitudinal walls (2A, 3A) and transversal walls (4A, 5A), and the base is provided with longitudinal walls (2B, 3B) and transversal walls (4B, 5B), where the walls are set on the cavities. The wall (4B) has a return provided from the folding of the extension of the wall (2B) for forming a corner (8B) covering an interstice (8A) between the walls (2A, 4A).