| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an enclosed forcible cooling structure excellent in producibility and reliability. SOLUTION: A refrigerant channel 21-2 of predetermined width and length provided, at the opposite ends thereof, with hose nipples 21-3a, 3b for feeding and delivering a refrigerant is formed on a box type bottom face part having one open side. A printed board 22 is then mounted thereon and a cover is applied to the open side thus constituting a socket 10 for mounting a shield case 20 comprising the hose nipples 21-3a, 3b and a connection socket 26 on a fixing rack. The rack comprises a heat converter, connectors 31, 32 corresponding to a plurality of unit sockets, and a back board 30 having connectors 33, 34 with valve corresponding to the hose nipples. When the unit 10 is inserted into the rack, the hose nipples 21-3a, 3b open the valves of connectors and a refrigerant from the heat converter is circulated through the hose nipples 21-3a, 3b and the refrigerant channel in the shield case 20. Consequently, heat generated in the shield case 20 is absorbed and converted.</p> |
