Patent ID: 8255020

Claim:
A rotatable cell phone comprising: a display unit comprising: a top housing defining a top recess thereon; and a top printed circuit board received in the top housing and defining a top conductor exposed in the top recess; a main unit movably connected to the display unit and comprising: a bottom housing defining a bottom recess thereon; and a bottom PCB received in the bottom housing and defining a bottom conductor exposed in the bottom recess; a connecting unit connected between the display unit and the main unit, the connecting unit comprising: a top assembly module detachably mounted in the top recess, the top assembly module comprising a top sub conductor electrically coupled with the top conductor; a bottom assembly module detachably mounted in the bottom recess, the bottom assembly module comprising a bottom sub conductor electrically coupled with the bottom conductor; and a pivot shaft rotatably connecting the top assembly module to the bottom assembly module, and defining an axial hole thereon; and a signal transmitting unit received in the axial hole of the pivot shaft, and configured for transmitting signals from the main unit to the display unit.