Patent ID: 7359217

Claim:
A pivoting apparatus with a shielding function for rotatably connecting a main body and a folder of a foldable electronic device, wherein the main body includes a first printed circuit board (first PCB), and the folder includes a second printed circuit board (second PCB), at least one of the first and second PCBs having a grounding surface, the pivoting apparatus comprises: a flexible printed circuit board (FPCB) for connecting the first PCB and the second PCB; a first metal sleeve for fixing a first end of the FPCB, the first metal sleeve being a curved metal plate and having two openings, the two openings being bounded by the curved metal plate and located at two opposite ends of the first metal sleeve, the first metal sleeve having an annular groove, a first inner surface, a first outer surface, a first sidewall, and a first protruding plate, the first protruding plate disposed on the first sidewall, the first sidewall having a first slit communicating with the two openings; and a second metal sleeve for fixing the second end of the FPCB, the second metal sleeve being a curved metal plate and having two openings, the two openings being bounded by the curved metal plate and located at two opposite ends of the second metal sleeve, the second metal sleeve comprising a second sidewall, a second protruding plate, and a joint ring having a gap, the second protruding plate being disposed on the second sidewall, the second sidewall having a second slit extended from the gap, the two openings communicating through the second slit and the gap, the joint ring having a second inner surface and a second outer surface, the joint ring being alterable in shape to allow the joint ring altered in diameter to enclose or insert into the annular groove, wherein the inner surface of the joint ring contacts with a part of the outer surface of the first metal sleeve on which the annular groove is formed, or the outer surface of the joint ring contacts with a part of the inner surface of the first metal sleeve on which the annular groove is formed, so as to allow the second metal sleeve and the first metal sleeve to be rotatably connected for receiving the FPCB; wherein at least one of the first and second protruding plates connects to the grounding surface, so as allow both first and second metal sleeves to be grounded when being rotatably connected to each other; whereby when the folder is rotated relatively to the main body, the second metal sleeve twists the second end of the FPCB relatively to the first end of the FPCB.