Refrigerator cooling system having secondary cooling loop
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F25D-011/02
F25B-025/00
F25D-011/00
출원번호
US-0393877
(2016-12-29)
등록번호
US-10161665
(2018-12-25)
발명자
/ 주소
Wu, Guolian L.
출원인 / 주소
Whirlpool Corporation
대리인 / 주소
Price Heneveld LLP
인용정보
피인용 횟수 :
0인용 특허 :
102
초록
A refrigerator cooling system and method provides cooling to one or more features of a refrigerator by employing a secondary cooling loop that utilizes the excess cooling capacity of an evaporator to selectively provide supplemental cooling to the features when a thermal demand arises.
대표청구항▼
1. A refrigeration cooling system comprising: a first cooling loop configured to selectively provide coolant to a first evaporator thermally connected to a first refrigerator compartment, and a second evaporator thermally connected to a second refrigerator compartment; anda secondary cooling loop in
1. A refrigeration cooling system comprising: a first cooling loop configured to selectively provide coolant to a first evaporator thermally connected to a first refrigerator compartment, and a second evaporator thermally connected to a second refrigerator compartment; anda secondary cooling loop in non-fluid contact with the first cooling loop and comprising: a reservoir thermally connected to the first evaporator and storing a liquid thermal storage material that receives excess cooling capacity from the first evaporator;a plurality of heat exchangers thermally connected to a plurality of features positioned within the first refrigerator compartment; anda pump operably connected to the reservoir and configured to pump the liquid thermal storage material to the plurality of heat exchangers to provide cooling to the plurality of features;wherein the use of the secondary cooling loop to provide cooling to the plurality of features temporarily relieves the first cooling loop from having to circulate coolant to the first evaporator, wherein the plurality of heat exchangers each include a corresponding bypass line, a respective secondary heat exchanger, and a selectively and alternatively positionable valve with a first outlet leading to the respective secondary heat exchanger and a second outlet leading to the corresponding bypass line for selectively and alternatively providing the liquid thermal storage material to the respective secondary heat exchanger or the corresponding bypass line. 2. The refrigeration cooling system of claim 1, wherein the placement of the plurality of features is independent of the location of the first evaporator. 3. The refrigeration cooling system of claim 1, wherein the first refrigerator compartment comprises a fresh food compartment and the second refrigerator compartment comprises a freezer compartment. 4. The refrigeration cooling system of claim 1, wherein the first evaporator comprises a coupler thermally connected to the reservoir and having a conductive interface for transferring excess cooling capacity to liquid thermal storage material stored in the reservoir. 5. The refrigeration cooling system of claim 1, wherein the plurality of heat exchangers are arranged in series, parallel, or a combination thereof. 6. The refrigeration cooling system of claim 1, wherein the secondary loop is operable to selectively provide the liquid thermal storage material to a single heat exchanger or any combination of the plurality of heat exchangers based on thermal demands of the plurality of features. 7. The refrigeration cooling system of claim 6, wherein the liquid thermal storage material is first provided to one or more of the plurality of heat exchangers associated with one or more of the plurality of features having the highest thermal demands. 8. A refrigeration cooling system comprising: a first cooling loop configured to selectively provide coolant to a first evaporator thermally connected to a first refrigerator compartment, and a second evaporator thermally connected to a second refrigerator compartment; anda secondary cooling loop in non-fluid contact with the first cooling loop and comprising: a reservoir thermally connected to the first evaporator and storing a liquid thermal storage material that receives excess cooling capacity from the first evaporator;a plurality of heat exchangers thermally connected to a plurality of features positioned within the first refrigerator compartment; anda pump operably connected to the reservoir and configured to pump the liquid thermal storage material to the plurality of heat exchangers to provide cooling to the plurality of features;wherein the secondary cooling loop is operable to selectively provide the liquid thermal storage material to first and second heat exchangers of the plurality of heat exchangers based on thermal demands of the plurality of features, wherein the secondary cooling loop includes a valve with a first outlet leading to the first heat exchanger, a second outlet leading to the second heat exchanger, and a third outlet leading to a bypass line, wherein the valve is selectively and alternatively operable between at least: a first position, a second position, and a third position that respectively provide the liquid thermal storage material to the first heat exchanger, the second heat exchanger, and the bypass line. 9. The refrigeration cooling system of claim 8, wherein the placement of the plurality of heat exchangers is independent of the location of the first evaporator. 10. The refrigeration cooling system of claim 8, wherein the first refrigerator compartment comprises a fresh food compartment and the second refrigerator compartment comprises a freezer compartment. 11. The refrigeration cooling system of claim 8, wherein the first evaporator comprises a coupler thermally connected to the reservoir and having a conductive interface for transferring excess cooling capacity to liquid thermal storage material stored in the reservoir. 12. The refrigeration cooling system of claim 8, wherein the plurality of heat exchangers are arranged in series, parallel, or a combination thereof. 13. The refrigeration cooling system of claim 8, wherein each of the plurality of features comprises a compartmental area of a refrigerator or a module of the refrigerator. 14. The refrigeration cooling system of claim 8, wherein one or more of the plurality of heat exchangers associated with one or more of the plurality of features having the highest thermal demands are first to receive the liquid thermal storage material. 15. A refrigeration cooling system comprising: a first cooling loop configured to selectively provide coolant to a first evaporator thermally connected to a first refrigerator compartment, and a second evaporator thermally connected to a second refrigerator compartment; anda secondary cooling loop in non-fluid contact with the first cooling loop and comprising: a reservoir thermally connected to the first evaporator and storing a liquid thermal storage material that receives excess cooling capacity from the first evaporator;a plurality of heat exchangers thermally connected to a plurality of features positioned within the first refrigerator compartment; anda pump operably connected to the reservoir and configured to pump the liquid thermal storage material to the plurality of heat exchangers to provide cooling to the plurality of features;wherein the secondary cooling loop is operable to prioritize cooling such that features having highest thermal demands are first to receive cooling, wherein the secondary cooling loop includes a valve with a first outlet leading to a first heat exchanger of the plurality of heat exchangers, a second outlet leading to a second heat exchanger of the plurality of heat exchangers, and a third outlet leading to a bypass line, wherein the valve is selectively and alternatively operable between at least: a first position, a second position, and a third position to selectively and alternatively provide the liquid thermal storage material to the first heat exchanger, the second heat exchanger, and the bypass line. 16. The refrigeration cooling system of claim 15, wherein the placement of the plurality of heat exchangers is independent of the location of the first evaporator, and wherein the bypass line includes a third heat exchanger of the plurality of heat exchangers. 17. The refrigeration cooling system of claim 15, wherein the first refrigerator compartment comprises a fresh food compartment and the second refrigerator compartment comprises a freezer compartment. 18. The refrigeration cooling system of claim 15, wherein each of the plurality of features comprises a compartmental area of a refrigerator or a module of the refrigerator. 19. The refrigeration cooling system of claim 15, wherein the plurality of heat exchangers are arranged in series, parallel, or a combination thereof. 20. The refrigeration cooling system of claim 15, wherein one or more of the plurality of heat exchangers associated with one or more of the plurality of features having highest thermal demands are first to receive the liquid thermal storage material.
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