US 11,940,180 B2
Hot water supply tank
Heewoong Park, Seoul (KR); and Jeongseob Shin, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 17/424,971
Filed by LG ELECTRONICS INC., Seoul (KR)
PCT Filed Jan. 22, 2020, PCT No. PCT/KR2020/001095
§ 371(c)(1), (2) Date Jul. 22, 2021,
PCT Pub. No. WO2020/153751, PCT Pub. Date Jul. 30, 2020.
Claims priority of application No. 10-2019-0009713 (KR), filed on Jan. 25, 2019.
Prior Publication US 2022/0090822 A1, Mar. 24, 2022
Int. Cl. F24H 1/18 (2022.01); B65D 88/74 (2006.01); F24D 19/00 (2006.01); F24H 4/04 (2006.01)
CPC F24H 1/181 (2013.01) [B65D 88/748 (2013.01); F24D 19/0092 (2013.01); F24H 1/185 (2013.01); F24H 4/04 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A hot water supply tank comprising:
a case forming an appearance of the hot water supply tank;
a heating container accommodating a fluid and having an inner side treated with anticorrosive;
a heater installed on at least a side of the heating container and transferring heat to the fluid, the heating container being configured to have a first ratio of a side height to a bottom diameter of the heating container to maximize a heat transfer performance of the heater, and the heating container including a heat transfer area occupied by the heater; and
a heat insulator interposed between the case and the heater,
wherein the first ratio of the heating container has a value inversely proportional to the heat transfer area when the heat transfer area is less than a first area,
wherein the first ratio of the heating container has a value proportional to the heat transfer area when the heat transfer area is greater than or equal to the first area,
wherein the first ratio has a value of 4 to 9 and the heat transfer area ranges from 0.6 to 1.8 m2,
wherein in a case that a volume of the heating; container ranges from 180 to 220 L and the heater is installed only on the side of the heating container, the first has a value proportional to the heat transfer area when the heat transfer area is more than or equal to 1.2 m2, and
wherein in a case that the volume of the heating container ranges from 180 to 220 L and the heater is installed on a bottom as well as the side of the heating container, the first ratio has a value inversely proportional to the heat transfer area when the heat transfer area is less than or equal to 1.2 m2.