Patent ID: 7593232

Claim:
An electronic apparatus comprising: a housing; a circuit board section accommodated in the housing, the circuit board section comprising (i) a heat generating component, (ii) a circuit board on which the heat generating component is mounted and which comprises a heat receiving region thermally connected to the heat generating component, and a heat radiating region having a lower temperature than the heat receiving region while the apparatus is operating, and (iii) a circuit component which is mounted on the heat radiating region of the circuit board and generates a smaller calorific value than the heat generating component; and a heat transfer member provided on the circuit board, and comprising a first end portion attached in the heat receiving region and a second end portion attached in the heat radiating region, the first end portion being attached to a surface on which the heat generating component is mounted, wherein the circuit board comprises a board main body; a conductor layer which is provided in each of the heat receiving region and the heat radiating region and is exposed outside the circuit board to contact the heat transfer member, another conductor layer which is provided in the board main body, and a via hole through which this conductor layer is thermally connected to the conductor layer which is exposed to the outside.