HEAT PIPE TYPE HEAT RADIATING UNIT AND ITS MANUFACTURE

摘要

PURPOSE:To reduce the thickness of a heat transferring plate so as to reduce the weight and thickness of a heat pipe type heat radiating unit as a whole by press-fixing both surfaces along the longitudinal axes of some or all heat pipes inserted into pipe inserting holes of the heat transferring plate to internal surfaces of the holes along the longitudinal axes of the holes. CONSTITUTION:In a heat transferring plate 2, pipe inserting holes 20 having flat (or elliptic) cross sections are formed at nearly equal intervals. The evaporating sections 10 of heat pipes 1 inserted into and fixed to the holes 20 have flat (or elliptic) cross sections and their both surfaces along their longitudinal axes r1 are press-fixed to the upper and lower internal surfaces of the holes 20 along the longitudinal axes R1 of the holes 20. The condensing sections 11 of the pipes 1 are fitted with heat radiating plates 3. The heat generated by heat generating parts is transferred to the evaporating sections 10 of the pipes 1 through the plate 2, evaporates a working fluid in the sections 10, is carried to the low-temperature and low-pressure condensing sections 11 by the vapor of the working fluid, and is discharged to the outside air through heat radiating fins 3.