| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a printed wiring board that can raise radiation efficiency and allows the large mounting space of an electronic component. <P>SOLUTION: In the printed wiring board 26 installed to a single-phase AC synchronous motor, wiring 42 is arranged as composed of a copper foil pattern continuous to a pad that connects connecting terminals of a triac 28, one end of a radiation bus bar 44 formed by bending a steel plate into an inverted U-shape is soldered to the wiring 42, the other end of the radiation bus bar 44 is fixed by soldering to fixing wiring 46 independent from the wiring 42, and the radiation bus bar 44 is protrusively arranged on the upper face of the printed wiring board. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
