Patent ID: 8773860

Claim:
An electronic device, comprising: a chassis, disposed in a rack, wherein the rack has at least one electrically connecting terminal; a main board module, disposed in the chassis; and an electrically connecting module, comprising: a circuit board, having a first connecting end corresponding to the main board module and a second connecting end corresponding to the rack, wherein the first connecting end is electrically connected to the main board module; at least one first connector, disposed on the circuit board and electrically connected to the second connecting end, wherein when the chassis is located in the rack, the first connector is electrically connected to the electrically connecting terminal on the rack, and when the chassis is pulled out from the rack, the first connector is moved with the chassis such that an electrical connection between the first connector and the electrically connecting terminal is terminated; and a shell connected to a back side of the chassis, the circuit board is disposed in the shell, the shell is connected to the chassis through an adjustable position-limiting element, the adjustable position-limiting element forms an adjusting space area between the shell and the chassis, and the shell is able to move relative to the chassis within the adjusting space area, wherein when the chassis enters the rack, the electrically connecting terminal presses the shell to adjust a position of the shell, such that the first connector is physically and electrically connected to the corresponding electrically connecting terminal, when the chassis is pulled out from the rack, the first connector is moved with the chassis such that a physical connection and a electrical connection between the first connector and the electrically connecting terminal is terminated.