US 12,085,326 B2
Refrigerator with venturi duct between compartments
Joo Yong Lee, Suwon-si (KR); Il Sung Bae, Suwon-si (KR); and Hyo Ju Han, Suwon-si (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Appl. No. 17/291,982
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
PCT Filed Oct. 31, 2019, PCT No. PCT/KR2019/014542
§ 371(c)(1), (2) Date May 6, 2021,
PCT Pub. No. WO2020/096269, PCT Pub. Date May 14, 2020.
Claims priority of application No. 10-2018-0136284 (KR), filed on Nov. 8, 2018.
Prior Publication US 2022/0011035 A1, Jan. 13, 2022
Int. Cl. F25D 11/02 (2006.01)
CPC F25D 11/02 (2013.01) [F25D 2317/067 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A refrigerator comprising:
a main body;
first and second storage chambers with front sides open in the main body;
a first inner case defining the first storage chamber;
a second inner case defining the second storage chamber;
a cooling path formed between a rear side of the first storage chamber and a rear side of the first inner case;
an evaporator arranged in the main body to produce cold air;
a first duct supplying cold air into the first storage chamber and a second duct supplying cold air to the second storage chamber;
a connecting duct connecting the first duct to the second duct to move the cold air produced from the evaporator to the second duct; and
an auxiliary blower fan arranged adjacent to the smallest area for air in the second storage chamber to flow into the smallest area through a connecting path,
wherein the first duct is connected to the cooling path and comprises a blower fan provided for cold air in the cooling path to flow into the first duct and the second duct,
wherein the second duct comprises a connecting port connected to the connecting duct, a discharge port through which the cold air is discharged, a discharge path connecting the connecting port to the discharge port, and the connecting path connecting inside of the second storage chamber to the discharge path,
wherein the discharge path comprises a smallest area with a smallest cross-section in a vertical direction or in a front-to-back direction, and a connection flow path is arranged to connect an inside of the second storage chamber to the smallest area,
wherein the discharge path includes a front section between the connecting port and the smallest area, and a rear section between the smallest area and the discharge port, and
wherein a length of the rear section is formed longer than a length of the front section.