| 摘要 |
PROBLEM TO BE SOLVED: To attain compactification and cost reduction, and enhance heat resistance and reliability in a relay built-in controller storing a relay. SOLUTION: Since heat radiation of a mounting base is accelerated and conductor resistance becomes low by using a lead frame 5 made of a copper alloy as the mounting base, heating of the base is suppessed to a small value. Heat damage to a relay 3 on the lead frame 5 and a HIC(hybrid integrated circuit) 4 or the like, and deterioration of a soldered portion are prevented thereby to prevent generation of operation trouble for them. A large radiator is not required, the number of part items is reduced since a connector terminal 5b is integrally provided in the lead frame 5, and An ECU(electric control unit) 1 is compactified to facilitate mounting in an engine room. |
