US 12,292,218 B2
Reservoir tank, cooling device, and projector
Toshihiko Matsuda, Osaka (JP); Shigeyoshi Matsui, Osaka (JP); and Shigekazu Yamagishi, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Jul. 29, 2021, as Appl. No. 17/388,451.
Claims priority of application No. 2020-128434 (JP), filed on Jul. 29, 2020; and application No. 2021-122937 (JP), filed on Jul. 28, 2021.
Prior Publication US 2022/0034563 A1, Feb. 3, 2022
Int. Cl. F25B 43/00 (2006.01); G03B 21/16 (2006.01)
CPC F25B 43/006 (2013.01) [G03B 21/16 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A reservoir tank comprising:
a tank main body configured to store a refrigerant within the tank main body;
an inflow path configured to allow the refrigerant to flow into the tank main body;
an outflow path configured to allow the refrigerant to flow out of the tank main body; and
an air bubble mixing prevention member that faces an inlet of the outflow path within the tank main body, wherein
the air bubble mixing prevention member is configured to prevent air bubbles from getting into the outflow path,
the inflow path includes a first inflow path into which the refrigerant flows from outside the tank main body, and a second inflow path connected to an outlet of the inflow path from the first inflow path,
the second inflow path has a cross-sectional area larger than a cross-sectional area of the first inflow path, and
the air bubble mixing prevention member includes:
a lid portion facing the inlet of the outflow path; and
a wall surrounding both of the inlet of the outflow path and the lid portion.
 
9. A cooling device comprising:
the reservoir tank according to claim 1;
a pump configured to circulate the refrigerant;
a heat sink configured to receive heat from a heat source; and
a heat exchanger configured to cool the refrigerant,
wherein the heating element is cooled by circulation of the refrigerant stored in the reservoir tank.
 
10. A projector comprising the cooling device according to claim 9.