公开(公告)号：US20210010740A1

公开(公告)日：2021-01-14

申请号：US17041149

申请日：2019-02-19

Applicant: Samsung Electronics Co., Ltd.

Inventor： In Sub LEE ,  Kook Jeong SEO ,  Dae Whan KIM ,  Hee Yuel ROH ,  Jeong-Min JEON ,  Young Don JEONG

IPC: F25D21/08

Abstract: Provide is a refrigerator provided with a defrosting device capable of enhancing the defrosting efficiency. The refrigerator includes main body, storage compartment provided inside the main body, an evaporator provided in the storage compartment and configured to generate cold air, a first flow path allowing air to be guided in a first direction for the air to be supplied to the storage compartment during a cooling operation, a defrosting heater configured to generate heat for defrost, a second flow path allowing air to be guided in a second direction opposite to the first direction for the air to be circulated around the evaporator during a defrosting operation, a fan allowing air having received heat from the defrosting heater to be circuited around the evaporator through the second flow path, and a flow path resistance portion provided on the second flow path to increase a flow path resistance in the first direction.

公开(公告)号：US20190226746A1

公开(公告)日：2019-07-25

申请号：US16372770

申请日：2019-04-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Jung Wook BAE ,  Kook Jeong SEO ,  Young Don JEONG

IPC: F25D11/00 ,  F25D17/06 ,  F25D21/08

Abstract: Disclosed herein is a refrigerator configured to delay increase in temperature of a storage compartment by lowering temperature of air that is heated by a defrost heater. A refrigerator includes a defrost heater, a lower cool air duct including a first flow path configured to guide cool air generated by the evaporator to be supplied to the storage compartment and an upper cool air duct disposed in an upper side of the lower cool air duct and provided with a second flow path configured to guide cool air generated by the evaporator to be supplied to the storage compartment. A cool pack in which cold storage material is filled stores cold storage energy from cool air that is delivered to the second flow path to decrease a temperature of air passing via the second flow path, so that increase of an internal temperature of the storage compartment is delayed.