公开(公告)号：US20230030412A1

公开(公告)日：2023-02-02

申请号：US17786454

申请日：2021-03-09

Applicant: KUBOTA CORPORATION

Inventor： Motohiro KAWANABE ,  Koji NAKAKITA ,  Kenji NISHIOKA ,  Misaki YAMADA

IPC: H05K7/20 ,  H05K5/04 ,  H05K5/00

Abstract: An electronic control device 1 includes: a circuit board 4 having a first surface 4A on which heat-generating components 21, 22, 23 and heat-degradable components 31, 32 are mounted; a first metallic case 2 covering the first surface 4A; a second case 3 covering a second surface 4B of the circuit board 4 opposite to the first surface 4A; supporting members 51, 52 provided between the heat-degradable components 31, 32 and the first case 2 to support the heat-degradable components 31, 32; and heat-dissipating members 41, 42, 43, each provided on at least any of the heat-generating components 21, 22, 23, and the first case 2, to transmit heat generated from the heat-generating component 21, 22, or 23, to the first case 2. A heat conductivity of the heat-dissipating members 41, 42, 43 is higher than a heat conductivity of the supporting members 51, 52.