TRI-PROOF STRUCTURE AND MOBILE PHONE USING THE SAME

摘要

A mobile phone proofed against water, dust, and physical shocks (tri-proofed) has a structure comprising a first casing, a second casing, and a third casing. The first casing is provided with protrusions, and the third casing is provided with convex blocks. The second casing is provided with a first groove for a protrusion, and is provided with a second groove for a convex block. The protrusions and the convex blocks are both interference fits in the grooves. Moreover, the second casing also includes cosmetic surfaces. The first casing and the third casing have outer surfaces and each cosmetic surface protrudes out of the outer surfaces. The cosmetic surfaces are in first contact when the mobile phone is dropped. Waterproofing, dustproofing, and shockproofing are simultaneously achieved with the single second casing structure.

主权项

1. A mobile phone using a tri-proof structure comprising:
a first casing; a second casing made of soft material, the first casing being assembled to the second casing; a third casing assembled to the second casing; a tri-proof structure for opposite left and right sides provided at opposite left and right sides of the mobile phone, the tri-proof structure for the opposite left and right sides providing a protrusion at each of the opposite left and right sides of the first casing, providing a convex block at each of the opposite left and right sides of the third casing, and providing a first groove corresponding to each of the protrusions and a second groove corresponding to each of the convex blocks, the fits between the protrusions and the first grooves and the fits between the convex blocks and the second grooves each being interference fit; a tri-proof structure for opposite upper and lower ends provided at the opposite upper and lower ends of the mobile phone, the tri-proof structure for the opposite upper and lower ends providing a concavity at each of opposite upper and lower ends of the third casing, providing a strip structure assembled in each of the concavities at each of the opposite upper and lower ends of the second casing, and providing a protruding strip at each of the opposite upper and lower ends of the first casing, each of the protruding strips being assembled in one of the concavities and pressing one of the strip structures to form an interference fit; wherein the second casing further comprises a cosmetic surface at each of the opposite left and right sides of the mobile phone, the first casing and the third casing respectively further comprises an outer surface at each of the opposite left and right sides of the mobile phone, each of the cosmetic surfaces protrudes out of the corresponding outer surface of the first casing and the third casing.