CIRCUIT BOARD STRUCTURE HAVING MEASURES AGAINST HEAT

摘要

For efficient soaking and heat releasing operations using the metal core (82) of a circuit board, a terminal block (3) has an insulating block body (13) and terminals (14 and 14'). Terminal portions (14b) are formed in at least one terminal (14), and are inserted into the individual through holes (16) of the circuit board (2), so that the heat of the metal core may be dissipated at the terminals or so that the heat of the pattern circuit and the metal core may be dissipated on the terminal side. A bus bar block (4) has an insulating block body (18) and a plurality of parallel bus bars (19). The lengths of the bus bars vary, and the individual terminal portions (19b) at the leading ends of the bus bars are inserted into the individual through holes (16) of the circuit board (2). The terminal portions (19b) at the tips of the bus bars are inserted into the through holes (16) of the circuit board near exothermic parts.