| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reactor device which has an improved heat dissipation performance, while ensuring sufficient insulating properties for automotive applications. <P>SOLUTION: A reactor device 1 comprises: a metal case 2; a dielectric component 3 housed in the metal case 2; and mold resin 4, in the metal case 2, having the dielectric component 3 immersed therein. The metal case 2 is placed on a cooling heat sink 11 for dissipating heat. The dielectric component 3 is composed of a combination of insulating bobbins 5a and 5b, a coil 6, and cores 7a and 7b, and allows these parts to be closely arranged, while satisfying the insulating property required between a wound portion 62 of the coil 6 and the metal case 2 by using projections 51a and 51b extending from the insulating bobbins 5a and 5b, respectively. Thus, the heat dissipation performance of the coil can be significantly improved even in a narrow gap where it is difficult to fill the mold resin 4. <P>COPYRIGHT: (C)2012,JPO&INPIT |
