公开(公告)号：US11523540B2

公开(公告)日：2022-12-06

申请号：US17147502

申请日：2021-01-13

Applicant: Nidec Corporation

Inventor： Toshihiko Tokeshi ,  Nobuya Nakae ,  Takehito Tamaoka

IPC: H05K7/20 ,  F28D15/00 ,  H01L23/367 ,  H01L23/473 ,  B23P15/26

Abstract: A cooling device includes a cooling plate with a bottom wall portion with a lower surface which contacts a heat-generating component, a top wall portion which covers an upper surface of the bottom wall portion, a side wall portion which couples the bottom wall portion and the top wall portion, and an internal space which is surrounded by the bottom wall portion, the top wall portion, and the side wall portion to define a first cooling medium flow passage. The bottom wall portion includes blades on the upper surface. An inlet port or an outlet port is on one end side of the first cooling medium flow passage. An inner peripheral wall of the side wall portion includes a first bent portion which is bent convex inward between ends of the blades and the at least one of the inlet port and the outlet port.

公开(公告)号：US11497148B2

公开(公告)日：2022-11-08

申请号：US17198759

申请日：2021-03-11

Applicant: Nidec Corporation

Inventor： Toshihiko Tokeshi ,  Takehito Tamaoka ,  Nobuya Nakae

IPC: H05K7/20

Abstract: A cooling device includes a cooling assembly which includes a cold plate extending in a first direction, a pump and a tank on one side of the cold plate in a second direction perpendicular to the first direction, and a partition extending in the first direction and covering the cold plate on one side in the second direction. The cold plate and the partition define a first refrigerant flow path through which a refrigerant flows. The pump includes a pump chamber in which an impeller is housed, the impeller moving the refrigerant. The tank includes a tank chamber in which the refrigerant flows. The pump chamber and the tank chamber communicate with each other through a first tank hole portion. The partition includes a first hole portion through which the first refrigerant flow path and the tank chamber communicate. The first tank hole portion is provided on one side in the first direction with respect to the first hole portion.