| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electrical connection box which prevents heat generated by an electric component from concentrating in a printed wiring board even if the direction that an upper cover and a lower cover overlap with each other is set along the vertical direction and the printed wiring board is positioned above the electric component. <P>SOLUTION: An electric connection box 1 includes: a metal substrate 24; a relay 25 mounted on a surface of the metal substrate 24 and provided below the metal substrate 24; and an upper cover 4 covering the metal substrate 24 and provided above the metal substrate 24. The electric connection box 1 further includes a hole 17 opened on a surface of a ceiling wall 7, arranged parallel to the metal substrate 24 of the upper cover 4, and a heat introduction tube 18 continuing into an inner edge of the hole 17 and penetrating through the metal substrate 24. <P>COPYRIGHT: (C)2013,JPO&INPIT |
