US 12,256,516 B2
Cooling device of endoscope
Masaaki Watanabe, Hachioji (JP)
Assigned to OLYMPUS CORPORATION, Tokyo (JP)
Filed by OLYMPUS CORPORATION, Tokyo (JP)
Filed on Jul. 20, 2022, as Appl. No. 17/869,090.
Application 17/869,090 is a continuation of application No. PCT/JP2020/003246, filed on Jan. 29, 2020.
Prior Publication US 2022/0354355 A1, Nov. 10, 2022
Int. Cl. H05K 7/20 (2006.01); A61B 1/05 (2006.01); A61B 1/06 (2006.01); A61B 1/12 (2006.01); G02B 23/24 (2006.01)
CPC H05K 7/20145 (2013.01) [A61B 1/05 (2013.01); A61B 1/128 (2013.01); G02B 23/2476 (2013.01); G02B 23/2484 (2013.01); H05K 7/20209 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A cooling device of an endoscope device, the cooling device comprising:
a box;
a first communicating hole that is a hole provided in the box;
a second communicating hole that is a hole provided in the box;
a second fan that is provided at the second communicating hole, the second fan being configured to guide gas to an exterior of the box through the second communicating hole to generate an airflow in the box, the gas having introduced into the box from the first communicating hole; and
a duct configured to house a heat generator to be cooled, the duct being positioned is the box to allow the airflow to pass through an inside of the duct,
the duct comprising
a first opening positioned upstream of the heat generator,
a first fan that is provided at the first opening, the first fan being configured to guide the airflow into the duct to cause the airflow to come into contact with the heat generator,
a second opening that is positioned downstream from the heat generator, the second opening being configured to guide the airflow taken in by the first fan to an exterior of the duct,
a third opening that is provided downstream from the first opening and upstream of the second opening and that is open on a surface that is along a surface where the first opening is open, and
a wall that includes as elevated portion on a periphery of the third opening to adjust the airflow, the elevated portion making a downstream side of the periphery higher than as upstream side of the periphery to allow the gas to flow into the duct from the third opening upon stoppage of the first fan.