CIRCUIT SUBSTRATE CONFIGURATION BODY
To provide a circuit substrate configuration body exhibiting a heat dissipation property while saving space.SOLUTION: There are provided: a heat sink 40; a substrate 50 provided on the heat sink 40; a connection metal body 60 thermally connected with the heat sink 40 that is mounted on the substrate...
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Sprache: | eng ; jpn |
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Zusammenfassung: | To provide a circuit substrate configuration body exhibiting a heat dissipation property while saving space.SOLUTION: There are provided: a heat sink 40; a substrate 50 provided on the heat sink 40; a connection metal body 60 thermally connected with the heat sink 40 that is mounted on the substrate 50; a plate-shaped coil 70 mounted on the substrate 50; and a synchronous rectification element 16 mounted on the substrate 50. The connection metal body 60 comprises a pillar part 65 inserted inside a through-hole 55 formed in the substrate 50, and a flange part 66 extending outward from a lower portion of the pillar part 65. An end portion 70a of the plate-shaped coil 70 is solder-connected with an upper face of the pillar part 65 of the connection metal body 60. A drain electrode 16a of the synchronous rectification element 16 is solder-connected with the upper face of the pillar part 65 of the connection metal body 60.SELECTED DRAWING: Figure 3
【課題】省スペース化を図るとともに放熱性に優れた回路基板構成体を提供する。【解決手段】ヒートシンク40と、ヒートシンク40上に配置された基板50と、基板50に搭載され、ヒートシンク40と熱的に結合された接続金属体60と、基板50に搭載された板状の巻線70と、基板50に搭載された同期整流素子16と、を備える。接続金属体60は、基板50に形成された貫通孔55内に挿通される柱部65と、柱部65の下部から外方に延びる鍔部66とを有する。板状の巻線70は、端部70aが接続金属体60の柱部65の上面とはんだ接続されている。同期整流素子16のドレイン電極16aは、接続金属体60の柱部65の上面とはんだ接続されている。【選択図】図3 |
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