ELECTRONIC DEVICE UNIT

专利名称：ELECTRONIC DEVICE UNIT

发明人：KUBO, Hideo, Fujitsu Limited,SUZUKI,

Masahiro, Fujitsu Limited

申请号：EP00980036.8申请日：20001211公开号：EP1343204A1公开日：20030910

专利附图：

摘要：Plural CPUs 20-1 through 20-6 are mounted on a circuit board 11, and heat sinks30-1 through 30-6 are mounted on these CPUs, respectively. The CPUs 20-1 through 20-6are cooled by an air flow generated by motor fan units 14-1, 14-2, 15-1, and 15-2. The

CPUs 20-1 through 20-6 are arranged such that a ratio of a sectional clearance area at thedownstream side of the air flow to a sectional area of a tunnel 12 is lower than acorresponding ratio at the upstream side of the air flow. This clearance is formedbetween a cover member 13 and the heat sinks 30-1 through 30-6. Air flow passages 85and 86 are formed at both sides at the upstream side. By the air flow passages 85 and 86,the amount of fresh air that is sent to the heat sinks 30-5 and 30-6 at the downstreamside is increased. Accordingly, the cooling of the CPUs 20-5 and 20-6 at the downstreamside is promoted compared to the conventional case.

申请人：FUJITSU LIMITED

地址：1-1, Kamikodanaka 4-chome, Nakahara-ku Kawasaki-shi, Kanagawa 211-8588 JP

国籍：JP

代理机构：Sunderland, James Harry

更多信息请下载全文后查看