Patent ID: 7839640

Claim:
An electronic device comprising: a housing; plurality of blades each of which is detachable from at least one of sides of the housing and on each of which an electronic part including at least CPU and a memory is mounted; first cooling devices each of that takes out heat generated in the blade outside the blade, each of said first cooling device having a heat release part in the form of an elongate column to be fixed to the blade so that a length direction of the column is made substantially in parallel to an insertion direction of the blade into the housing; second cooling devices fixed to the housing to discharge heat transported from the first cooling devices outside the housing, each of said second cooling devices having a heat absorbing part provided with an elongate, cylindrical-shaped hole, which is capable of containing the heat release part of the first cooling device; medium reservoirs each of which is put in fluid communication with an elongate, pipe-shaped clearance, which is formed between the heat release part of the first cooling device and the heat absorbing part of the second cooling device when the heat release part of the first cooling device is inserted into the heat absorbing part of the second cooling device; a heat conducting medium stored in each of the medium reservoirs; pressurizing devices for pressurizing the heat conducting medium stored in the medium reservoirs to supply the heat conducting medium to the elongate, pipe-shaped clearances, and a detachable connecting part formed between the heat release part of each of the first cooling devices and the heat absorbing part of each of the second cooling devices.