| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic control device which facilitates natural convection without suctioning external air and is stored in a housing for heat radiation with improved heat radiation efficiency of a heating component.SOLUTION: In an electronic control device, a circuit board, on which a heating component is mounted, is stored in a housing for heat radiation. The housing for the heat radiation includes: a first housing in which the circuit board is stored in an internal space; and a second housing in which the heating component is not included in an internal space. The electronic control device includes multiple communication passages which allow the first housing and the second housing to communicate with each other and include a first passage and a second passage. Airflow path between a first housing side opening end in the first passage and a first housing side opening end in the second passage passes through the heating component. |
