US 12,477,682 B2
Cooling device
Takashi Takeuchi, Kariya (JP); Masahiro Ichigo, Kariya (JP); Koki Nagae, Kariya (JP); Akihiko Nagae, Kariya (JP); Takamitsu Kozawa, Kariya (JP); and Yoshiaki Oshita, Kariya (JP)
Assigned to KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Kariya (JP)
Filed by KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Kariya (JP)
Filed on Nov. 7, 2022, as Appl. No. 17/981,602.
Claims priority of application No. 2022-007675 (JP), filed on Jan. 21, 2022.
Prior Publication US 2023/0240038 A1, Jul. 27, 2023
Int. Cl. H05K 7/20 (2006.01)
CPC H05K 7/20154 (2013.01) 12 Claims
OG exemplary drawing
 
1. A cooling device comprising:
a first flat plate-shaped member and a second flat plate-shaped member disposed with a predetermined interval therebetween;
a heat radiation fin configured to extend from the first flat plate-shaped member toward the second flat plate-shaped member and to form a flow path through which air flows between the first flat plate-shaped member and the second flat plate-shaped member; and
a centrifugal fan having an inlet as an opening, an outlet configured to be open in a direction intersecting an opening direction of the inlet, and an impeller that rotates so that air taken in through the inlet is pushed out the outlet by the impeller,
wherein the centrifugal fan is disposed at a position separated from at least one of the first flat plate-shaped member and the second flat plate-shaped member by a predetermined interval so that the outlet is open toward the flow path, and
wherein a protruding part that protrudes toward the centrifugal fan is provided on a portion of at least one of the first flat plate-shaped member and the second flat plate-shaped member that is farther from the centrifugal fan, wherein the portion faces the centrifugal fan and the protruding part overlaps with the impeller of the centrifugal fan in an axial direction in a vertical cross-sectional view of the cooling device.