IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0727382
(2010-03-19)
|
등록번호 |
US-8393173
(2013-03-12)
|
우선권정보 |
KR-10-2009-0112898 (2009-11-20) |
발명자
/ 주소 |
- Choi, Jae Heuk
- Kwak, Tae Hee
- Yoo, Yoon Ho
- Ha, Do Yong
- Chung, Baik Young
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
4 인용 특허 :
15 |
초록
▼
A combined refrigerating/freezing and air conditioning system is provided. The system may include an air conditioning circuit, a refrigerating circuit, a freezing circuit, a first heat exchanger, and a second heat exchanger. The air conditioning circuit may include a compressor, an outdoor heat exch
A combined refrigerating/freezing and air conditioning system is provided. The system may include an air conditioning circuit, a refrigerating circuit, a freezing circuit, a first heat exchanger, and a second heat exchanger. The air conditioning circuit may include a compressor, an outdoor heat exchanger, and an indoor heat exchanger. The refrigerating circuit may include compressor, a condenser, and an evaporator. The freezing circuit may include a compressor, a condenser, and an evaporator. The refrigerant of the air conditioning circuit may be heat-exchanged with the refrigerant of the refrigerating circuit in the first heat exchanger, and the refrigerant of the refrigerating circuit may be heat-exchanged with the refrigerant of the freezing circuit in the second heat exchanger to improve air conditioning efficiency and refrigerating/freezing efficiency of the system.
대표청구항
▼
1. A combined refrigerating/freezing and air conditioning system, comprising: an air conditioning circuit including an air conditioning compressor, an outdoor heat exchanger, and an indoor heat exchanger;a refrigerating circuit including a refrigerating compressor, a refrigerating condenser, and a r
1. A combined refrigerating/freezing and air conditioning system, comprising: an air conditioning circuit including an air conditioning compressor, an outdoor heat exchanger, and an indoor heat exchanger;a refrigerating circuit including a refrigerating compressor, a refrigerating condenser, and a refrigerating evaporator;a freezing circuit including a freezing compressor, a freezing condenser, in the freezing compressor a refrigerant compressed and the freezing compressor is heat-exchanged with outdoor air, and a freezing evaporator;a first heat exchanger performing heat exchange between refrigerant flowing through the air conditioning circuit and refrigerant flowing through the refrigerating circuit; anda second heat exchanger performing heat exchange between refrigerant flowing through the refrigerating circuit and refrigerant flowing through the freezing condenser in the freezing circuit. 2. The system of claim 1, wherein refrigerant flowing through the refrigerating circuit is condensed in the refrigerating condenser, and then heat-exchanged with refrigerant flowing through the air conditioning circuit. 3. The system of claim 1, wherein refrigerant flowing through the refrigerating circuit is heat-exchanged with refrigerant flowing through the air conditioning circuit, and then condensed in the refrigerating condenser. 4. The system of claim 1, wherein the air conditioning circuit has a cooling mode and a heating mode, and wherein refrigerant flowing through the refrigerating circuit is condensed in the refrigerating condenser, and then heat-exchanged with refrigerant flowing through the air conditioning circuit in the cooling mode, and refrigerant flowing through the refrigerating circuit is heat-exchanged with refrigerant flowing through the air conditioning circuit and is then condensed in the refrigerating condenser in the heating mode. 5. The system of claim 1, wherein an order of performing one operation in which refrigerant flowing through the refrigerating circuit is condensed in the refrigerating condenser and another operation in which refrigerant flowing through the refrigerating circuit is heat-exchanged with refrigerant flowing the air conditioning circuit is determined based on outdoor air conditions. 6. The system of claim 1, further comprising a switch controlling flow of refrigerant through a passage connecting the refrigerating compressor, the refrigerating condenser and the first heat exchanger. 7. The system of claim 6, wherein the switch directs refrigerant that has been compressed in the refrigerating compressor to at least one of the refrigerating condenser or the first heat exchanger. 8. The system of claim 1, further comprising: a first switch directing a flow of refrigerant compressed in the refrigerating compressor to the refrigerating condenser or to the second heat exchanger; anda second switch directing a flow of refrigerant condensed in the refrigerating condenser to the second heat exchanger or to the refrigerating evaporator. 9. The system of claim 8, wherein the air conditioning circuit has a cooling mode and a heating mode, and wherein, in the cooling mode, refrigerant compressed in the refrigerating compressor is directed to the refrigerating condenser by the first switch and condensed, and is then directed to the first heat exchanger by the second switch, and in the heating mode, refrigerant compressed in the refrigerating compressor is directed to the first heat exchanger by the first switch and heat-exchanged with refrigerant flowing through the air conditioning circuit, and is then directed to the refrigerating condenser by the second switch. 10. The system of claim 8, wherein refrigerant compressed in the refrigerating compressor is directed to the second heat exchanger by the first switch and heat-exchanged with refrigerant flowing through the air conditioning circuit, and is then directed to the refrigerating condenser by the second switch based on outdoor air conditions. 11. A combined refrigerating/freezing and air conditioning system, comprising: an air conditioning circuit through which a first refrigerant circulates so as to perform an air conditioning cycle;a refrigerating circuit through which a second refrigerant circulates so as to perform a refrigerating cycle;a freezing circuit through which a third refrigerant circulates so as to perform a freezing cycle;a first heat exchanger selectively performing heat exchange between the first refrigerant and the second refrigerant;a second heat exchanger selectively performing heat exchange between the second refrigerant and the third refrigerant anda four-way valve directing the second refrigerant of the refrigerating circuit to the first heat exchanger after being condensed in the refrigerating circuit, or after being compressed in the refrigerating circuit and before being condensed in the refrigerating circuit. 12. The system of claim 11, wherein the second heat exchanger comprises a cascade heat exchanger transferring heat from the third refrigerant flowing through the freezing circuit to the second refrigerant flowing through the refrigerating circuit. 13. The system of claim 12, wherein the first heat exchanger comprises a cascade heat exchanger transferring heat from the second refrigerant flowing through the refrigerating circuit to the first refrigerant flowing through the air conditioning circuit. 14. The system of claim 11, wherein the first refrigerant supplied to the first heat exchanger from the air conditioning circuit has a relatively low pressure and is heat-exchanged with the second refrigerant supplied to the first heat exchanger from the refrigerating circuit, the second refrigerant having a relatively high pressure. 15. The system of claim 11, wherein the second refrigerant supplied to the second heat exchanger from the refrigerating circuit has a relatively low pressure and is heat-exchanged with the third refrigerant supplied to the second heat exchanger from the freezing circuit, the third refrigerant having a relatively high pressure. 16. The system of claim 11, wherein the second refrigerant of the refrigerating circuit is heat-exchanged with the first refrigerant of the air conditioning circuit by the first heat exchanger after being condensed in the refrigerating circuit. 17. The system of claim 11, wherein the second refrigerant of the refrigerating circuit is heat-exchanged with the first refrigerant of the air conditioning circuit by the first heat exchanger after being compressed in the refrigerating circuit and before being condensed in the refrigerating circuit. 18. The system of claim 11, wherein the air conditioning circuit has a cooling mode and a heating mode, and wherein, when the air conditioning circuit is in the cooling mode, the second refrigerant of the refrigerating circuit is heat-exchanged with the first refrigerant of the air conditioning circuit by the first heat exchanger after being condensed in the refrigerating circuit, and when the air conditioning circuit is in the heating mode, the second refrigerant of the refrigerating circuit is heat-exchanged with the first refrigerant of the air conditioning circuit by the first heat exchanger after being compressed in the refrigerating circuit and before being condensed in the refrigerating circuit. 19. A combined refrigerating and air conditioning system, comprising: an air conditioning circuit including an air conditioning compressor, an outdoor heat exchanger, and an indoor heat exchanger;a refrigerating circuit including a refrigerating compressor, a refrigerating condenser, and a refrigerating evaporator; anda first heat exchanger performing heat exchange between refrigerant flowing through the air conditioning circuit and refrigerant flowing through the refrigerating circuit,wherein refrigerant of the refrigerating circuit is condensed in the refrigerating condenser and is then heat-exchanged with refrigerant of the air conditioning circuit in the first heat exchanger in a cooling mode of the air conditioning circuit, andwherein refrigerant of the refrigerating circuit is heat-exchanged with refrigerant of the air conditioning circuit in the first heat exchanger and is then condensed in the refrigerating condenser in a heating mode of the air conditioning circuit. 20. The system of claim 19, further comprising: a freezing circuit including a freezing compressor, a freezing condenser and a freezing evaporator; anda second heat exchanger performing heat exchange between refrigerant flowing through the refrigerating circuit and refrigerant flowing through the freezing circuit. 21. The system of claim 19, wherein the outdoor heat exchanger and the refrigerating condenser are installed in a single outdoor unit. 22. The system of claim 21, wherein the freezing condenser is also installed in the single outdoor unit together with the outdoor heat exchanger and the refrigerating condenser. 23. The system of claim 20, wherein heat is transferred from the refrigerant of the refrigerating circuit to the refrigerant of the air conditioning circuit in the first heat exchanger, and heat is transferred from the refrigerant of the freezing circuit to the refrigerant of the refrigerating circuit in the second heat exchanger. 24. The system of claim 19, wherein an order of performing one operation in which refrigerant of the refrigerating circuit is condensed in the refrigerating condenser and another operation in which refrigerant of the refrigerating circuit is heat-exchanged with the refrigerant of the air conditioning circuit is determined based on outdoor air conditions.
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