IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0741295
(2008-10-28)
|
등록번호 |
US-8479527
(2013-07-09)
|
우선권정보 |
KR-10-2007-0112328 (2007-11-05) |
국제출원번호 |
PCT/KR2008/006343
(2008-10-28)
|
§371/§102 date |
20100722
(20100722)
|
국제공개번호 |
WO2009/061094
(2009-05-14)
|
발명자
/ 주소 |
- Song, Gye Young
- Ahn, Kwang Woon
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
10 |
초록
▼
A refrigerator and a control method of the same are disclosed. A refrigerator includes a plurality of evaporators and a refrigerant path conversion device connected with the plurality of the evaporates, the refrigerant path conversion device controlling a path of refrigerant to perform defrosting op
A refrigerator and a control method of the same are disclosed. A refrigerator includes a plurality of evaporators and a refrigerant path conversion device connected with the plurality of the evaporates, the refrigerant path conversion device controlling a path of refrigerant to perform defrosting operations for predetermined evaporators and cooling operations for the other evaporators.
대표청구항
▼
1. A refrigerator comprising: a plurality of evaporators comprising a refrigerating compartment evaporator and a freezing compartment evaporator; anda refrigerant path conversion device connected with the plurality of the evaporators, wherein the refrigerant path conversion device controls a path of
1. A refrigerator comprising: a plurality of evaporators comprising a refrigerating compartment evaporator and a freezing compartment evaporator; anda refrigerant path conversion device connected with the plurality of the evaporators, wherein the refrigerant path conversion device controls a path of refrigerant to perform defrosting operations for predetermined evaporators and cooling operations for the other evaporators, and wherein a first refrigerant path control valve controls a path of the refrigerant drawn into the refrigerating compartment evaporator and the freezing compartment evaporator; anda first bypass pipe provided between the first refrigerant path control valve and the freezing compartment evaporator to guide the refrigerant having passed the first refrigerant path control valve, without being expanded, to the freezing compartment evaporator. 2. The refrigerator as claimed in claim 1, wherein the first bypass pipe is provided between the first refrigerant path control valve and the freezing compartment evaporator, in parallel with a freezing compartment expansion device to expand the refrigerant drawn into the freezing compartment evaporator. 3. The refrigerator as claimed in claim 1, wherein the refrigerant path conversion device further comprises: a second bypass pipe provided between the freezing compartment evaporator and the refrigerating compartment expansion device that exapands the refrigerant drawn into the refrigerating compartment evaporator to guide the refrigerant discharged from the freezing compartment evaporator to the refrigerating compartment expansion device. 4. The refrigerator as claimed in claim 3, wherein the refrigerant path conversion device further comprises: a second refrigerant path control valve connected with the second bypass pipe to close the refrigerant flowing to the second bypass pipe selectively. 5. The refrigerator as claimed in claim 4, wherein an end of the second bypass pipe is connected with the second refrigerant path control valve and the other end of the second bypass pipe is connected between the first refrigerant path control valve and the refrigerating compartment expansion device. 6. The refrigerator as claimed in claim 4, wherein the second refrigerant path control valve is a 3-way valve that guides the refrigerant discharged from the evaporator of the freezing compartment toward the second bypass pipe and a compressor selectively. 7. The refrigerator as claimed in claim 1, wherein the first refrigerant path control valve is a 4-way valve. 8. A control method of the refrigerator as claimed in claim 1 comprising: determining whether a cool air generation operation for the plurality of evaporators is performed or both a cool air generation operation and a defrosting operation are performed simultaneously;expanding and guiding the refrigerant toward the refrigerating compartment evaporator after drawing refrigerant into the freezing compartment evaporator without the refrigerant being expanded, if it is determined that both the cool air generation operation and the defrosting operation are performed simultaneously. 9. The control method as claimed in claim 8, wherein the refrigerant discharged from the refrigerating compartment evaporator is expanded by an expansion device and the refrigerant is drawn into the evaporator. 10. The control method as claimed in claim 8, wherein the refrigerant drawn into the freezing compartment evaporator passes a condenser and the refrigerant, without passing an expansion device, is bypassed toward the evaporator. 11. The control method as claimed in claim 8, wherein:the first refrigerant path control valve is provided at a branched portion between a pipe connected with a freezing compartment expansion device connected with the freezing compartment evaporator and a refrigerating expansion device connected with the refrigerating compartment evaporator;the first bypass pipe is connected with the first refrigerant path control valve, in parallel with the freezing compartment expansion device to guide the refrigerant having passed the first refrigerant path control valve toward the freezing compartment evaporator, without being expanded,wherein the refrigerator further comprises:a second bypass pipe provided between an outlet pipe of the freezing compartment evaporator and an inlet pipe of the refrigerating compartment expansion device to guide the refrigerant discharged from the freezing compartment evaporator toward the refrigerating compartment expansion device; anda second refrigerant path control valve provided at a connection portion between the second bypass pipe and the outlet pipe of the freezing compartment evaporator to close a flow of the refrigerant selectively,wherein, if the cool air generation operation and the defrosting operation are performed simultaneously, the first refrigerant path control valve controls the condensed refrigerant toward the first bypass pipe to perform the defrosting operation for the evaporator and the second refrigerant path control valve controls the refrigerant discharged from the freezing compartment toward the second bypass pipe. 12. The control method as claimed in claim 11, wherein if only the cool air generation operation for the freezing compartment evaporator is performed, the first path control valve controls the refrigerant toward the freezing compartment expansion device, closing the flow of the refrigerant toward the refrigerating compartment expansion device, and the second refrigerant path control valve controls the refrigerant discharged from the freezing compartment evaporator toward the compressor, closing the flow of the refrigerator toward the second bypass pipe. 13. The control method as claimed in claim 11, wherein if only the cool air generation operation for the refrigerating compartment evaporator is performed, the first refrigerant path control valve controls the refrigerant toward the refrigerating compartment expansion device, closing the flow of the refrigerant toward the freezing compartment expansion device and the second bypass pipe. 14. The control method as claimed in claim 11, wherein if the cool air generation operations for both the refrigerating compartment evaporator and the freezing compartment refrigerator evaporator are performed simultaneously, the first refrigerant path control valve controls the refrigerant toward the freezing compartment expansion device and the second refrigerant path control valve controls the refrigerant discharged from the freezing compartment evaporator to flow toward the second bypass pipe. 15. A refrigerator comprising: a refrigerating compartment evaporator that generates cool air drawn into a refrigerating compartment;a freezing compartment evaporator that generates cool air drawn into a freezing compartment;a refrigerating compartment expansion device that expands the refrigerant drawn into the refrigerator compartment evaporator;a freezing compartment expansion device that expands the refrigerant drawn into the freezing compartment evaporator; anda refrigerant path conversion device that controls a flow direction of the refrigerant drawn into the refrigerating compartment evaporator and the freezing compartment evaporator to perform a defrosting operation for the freezing compartment evaporator and a cool air generation operation for the refrigerating compartment evaporator,wherein the refrigerant conversion device comprises:a first refrigerant path control valve that controls the refrigerant to selectively flow to the refrigerating compartment expansion device and the freezing compartment expansion device; anda first bypass pipe provided between the first refrigerant path control valve and the freezing compartment evaporator, in parallel with the freezing compartment expansion device, to guide the refrigerant to the refrigerating compartment evaporator, without the refrigerant passing the freezing compartment expansion device, such that the refrigerant performs a defrosting operation for the freezing compartment evaporator. 16. The refrigerator as claimed in claim 15, wherein the refrigerant path conversion device further comprises: a second bypass pipe provided between the freezing compartment evaporator and the refrigerating compartment expansion device to guide the refrigerant discharged from the freezing compartment evaporator toward the refrigerating compartment expansion device; anda second refrigerant path control valve connected with the second bypass pipe to close the path of the refrigerant guided by the second bypass pipe selectively. 17. The refrigerator as claimed in claim 16, wherein the first refrigerant path control valve is a 4-way valve and the second refrigerant path control valve is a 3-way valve.
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