| 摘要 |
PURPOSE: A board of a closed system and a radiation heat structure thereof are provided to secure reliability for heat under the environment condition of a high temperature by effectively radiating heat based on direct contact of a whole thermal pad and a coolant passage. CONSTITUTION: A heating board(310) comprises heat sources. A thermal pad(315) is contacted with a radiation heat contact surface of a housing(316). A conducing plate(314) is unified in the heat sources and is laminated in the thermal pad. The thermal pad is contacted with the housing by transferring a motherboard with the heating board through the extension of an edge lock. The edge lock fixes the heating board in the housing. A shape of the housing makes directly contacts the thermal pad to the coolant passage of the housing.
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