CIRCUIT BOARD UNIT AND ELECTRONIC EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To effectively arrange the components of electronic equipment in a limited space and to effectively cool the components of the electronic equipment. SOLUTION: A heat sink 307 with integrated heat radiating fins 306 and a shield 308 are sandwiched between a main board 381a and a power source board 381b. The heat radiating fins 306 are covered with a hood 142d to gather air for cooling. Principal components of the main board 381a and the heat sink 307 are brought into contact with each other across heat conductive members which are different in heat conductivity by the components to make the heat distribution uniform.