Refrigerator and method of controlling the same
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F25D-017/04
F25D-011/02
출원번호
US-0547038
(2009-08-25)
등록번호
US-8341974
(2013-01-01)
우선권정보
KR-10-2008-0118215 (2008-11-26)
발명자
/ 주소
Oh, Min Kyu
Kim, Kyeong Yun
Lee, Jang Seok
Lee, Youn Seok
Chae, Su Nam
출원인 / 주소
LG Electronics Inc.
대리인 / 주소
KED & Associates, LLP
인용정보
피인용 횟수 :
1인용 특허 :
0
초록▼
A refrigerator is provided. The refrigerator may include a cold air generation chamber provided in a body of the refrigerator, the cold air generation chamber having an evaporator installed therein. A cold air duct may form a path through which cold air generated in the cold air generation chamber i
A refrigerator is provided. The refrigerator may include a cold air generation chamber provided in a body of the refrigerator, the cold air generation chamber having an evaporator installed therein. A cold air duct may form a path through which cold air generated in the cold air generation chamber is circulated to a freezer compartment, and a quick freezer compartment. The quick freezer compartment may be connected with the cold air duct, and may be positioned substantially nearer to the evaporator than the freezer compartment. A damper may be installed in the cold air duct to selectively shut off the flow of cold air to the freezer compartment. The quick freezer compartment may be quickly cooled using cold air directly supplied from the cold air generation chamber. Furthermore, cold air may be directed into the quick freezer compartment by selectively shutting off the supply of cold air into the freezer or refrigerator compartment.
대표청구항▼
1. A refrigerator, comprising: a main body having a main freezer compartment and an auxiliary freezer compartment formed therein;a chamber provided in the main body, the chamber having an evaporator installed therein, wherein the auxiliary freezer compartment is positioned closer to the evaporator t
1. A refrigerator, comprising: a main body having a main freezer compartment and an auxiliary freezer compartment formed therein;a chamber provided in the main body, the chamber having an evaporator installed therein, wherein the auxiliary freezer compartment is positioned closer to the evaporator than the main freezer compartment is;a duct that connects the chamber, the auxiliary freezer compartment and the main freezer compartment;a damper installed in the duct at a position between the main freezer compartment and the auxiliary freezer compartment, wherein the damper selectively opens and closes the duct so as to control a flow of cold air to the main freezer compartment;a freezer fan provided in the chamber to direct cold air from the chamber into the duct; anda cooling fan installed at an opening in the duct leading into the auxiliary freezer compartment and configured to direct cold air from the duct into the auxiliary freezer compartment. 2. The refrigerator of claim 1, wherein the damper is configured to close the duct and restrict the flow of into a lower portion of the cold air duct corresponding to the main freezer compartment when a temperature of the auxiliary freezer compartment is greater than a preset auxiliary freezer temperature and a temperature of the main freezer compartment is less than or equal to a preset main freezer temperature. 3. The refrigerator of claim 1, wherein the damper is configured to open the duct and allow cold air to flow into a lower portion of the duct corresponding to the main freezer compartment when a temperature of the main freezer compartment is less than a preset main freezer temperature. 4. The refrigerator of claim 1, wherein the damper is configured to partially open the duct and allow a portion of the cold air generated in the chamber to flow into a lower portion of the duct corresponding to the main freezer compartment when a temperature of the auxiliary freezer compartment is greater than a preset auxiliary freezer temperature and a temperature of the main freezer compartment is greater than or equal to a preset main freezer temperature. 5. The refrigerator of claim 1, wherein the auxiliary freezer compartment is a quick freezer compartment, and wherein the chamber is provided at a top portion of the main body, the quick freezer compartment is positioned immediately below the chamber, and the main freezer compartment is positioned immediately below the quick freezer compartment such that a temperature of the quick freezer compartment is decreased more quickly than a temperature of the main freezer compartment in a quick freezing mode of the refrigerator. 6. A refrigerator, comprising: a duct that extends vertically downward from a chamber provided at an upper portion of a main body, the chamber housing an evaporator that provides cold air;a quick freezer compartment and a main freezer compartment sequentially positioned under the chamber such that the chamber, the quick freezer compartment and the main freezer compartment are connected by the duct;a vertical barrier wall that defines a rear wall of the quick freezer compartment and the main freezer compartment, and that separates the duct from the quick freezer compartment and the main freezer compartment, the barrier wall including a plurality of openings formed therein through which cold air from the duct flows into the quick freezer compartment and the main freezer compartment;a damper that selectively restricts a flow of cold air from the chamber into the main freezer compartment so as to concentrate the flow of cold air into the quick freezer compartment;a first fan provided in the chamber to direct cold air from the chamber into the cold air duct; anda second fan provided in an opening in the barrier wall that corresponds to the quick freezer compartment, wherein the second fan is configured to direct cold air from the duct into the quick freezer compartment. 7. The refrigerator of claim 6, wherein the damper is installed within the duct, at a position between the quick freezer compartment and the main freezer compartment, so as to selectively restrict the flow of cold air into a lower portion of the duct corresponding to the main freezer compartment. 8. The refrigerator of claim 6, wherein the first fan is configured to operate and the damper is configured to close the duct and restrict the flow of cold air into a lower portion of the cold air duct corresponding to the main freezer compartment when a temperature of the auxiliary freezer compartment is greater than a preset auxiliary freezer temperature and a temperature of the main freezer compartment is less than or equal to a preset main freezer temperature. 9. The refrigerator of claim 6, wherein the first fan is configured to operate and the damper is configured to partially open the duct and allow a portion of the cold air generated in the chamber to flow into a lower portion of the duct corresponding to the main freezer compartment when a temperature of the auxiliary freezer compartment is greater than a preset auxiliary freezer temperature and a temperature of the main freezer compartment is greater than or equal to a preset main freezer temperature. 10. The refrigerator of claim 6, wherein the damper is configured to open the duct and allow cold air to flow into a lower portion of the duct corresponding to the main freezer compartment when a temperature of the main freezer compartment is less than a preset main freezer temperature. 11. A method of controlling a refrigerator having a main freezer compartment and an auxiliary freezer compartment, the method comprising: determining whether a quick freezing mode to supply cold air to the auxiliary freezer compartment is selected; andcontrolling a position of a damper and supplying cold air only to the auxiliary freezer compartment if the quick freezing mode is selected, comprising: stopping operation of a freezer fan that guides cold air from a duct toward the main freezer compartment;moving the damper to shut off a flow of cold air into a portion of the duct corresponding to the main freezer compartment; andoperating a fan positioned in a wall of the auxiliary freezer compartment to direct cold air from the duct into the auxiliary freezer compartment. 12. The method of claim 11, further comprising: sensing a temperature of the main freezer compartment and determining whether the sensed main freezer temperature is greater than a preset main freezer temperature; andoperating the freezer fan and opening the damper to allow cold air to flow through the lower portion of the duct and into the main freezer compartment if it is determined that the sensed main freezer temperature is greater than the present main freezer temperature.
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이 특허를 인용한 특허 (1)
Chae, Su Nam; Kim, Kyeong Yun; Lee, Jang Seok; Oh, Min Kyu; Lee, Youn Seok, Refrigerator having cold air generating compartment and machine room positioned at upper portion of cabinet.
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