Refrigerator with vacuum insulation housing a heat interchanger
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F25B-040/00
F25D-023/06
출원번호
US-0182652
(2016-06-15)
등록번호
US-10228169
(2019-03-12)
우선권정보
KR-10-2011-0114571 (2011-11-04)
발명자
/ 주소
Jung, Wonyeong
Youn, Deokhyun
출원인 / 주소
LG Electronics Inc.
대리인 / 주소
Fish & Richardson P.C.
인용정보
피인용 횟수 :
0인용 특허 :
22
초록▼
A refrigerator includes an inner case, an outer case, a vacuum space, and a liquid-gas interchanger. The inner case defines an exterior appearance of a storage space. The outer case is spaced apart a predetermined distance from the inner case. The vacuum space is provided between the inner case and
A refrigerator includes an inner case, an outer case, a vacuum space, and a liquid-gas interchanger. The inner case defines an exterior appearance of a storage space. The outer case is spaced apart a predetermined distance from the inner case. The vacuum space is provided between the inner case and the outer case, and maintains a vacuum to insulate the inner case from the outer case. The liquid-gas interchanger is arranged in the vacuum space to generate heat exchange between a refrigerant after it is exhausted from an evaporator and a refrigerant before it is drawn into an evaporator.
대표청구항▼
1. A refrigerator comprising: an inner case in which a storage space is formed;an outer case accommodating the inner case;a vacuum space provided between the inner case and the outer case; anda heat exchanger configured to generate heat exchange between refrigerant that has passed an evaporator and
1. A refrigerator comprising: an inner case in which a storage space is formed;an outer case accommodating the inner case;a vacuum space provided between the inner case and the outer case; anda heat exchanger configured to generate heat exchange between refrigerant that has passed an evaporator and refrigerant that is being drawn into the evaporator,wherein the heat exchanger is provided within the vacuum space, andwherein only a first end and second end of the heat exchanger are welded to the inner case and the outer case, respectively, andwherein portions other than the welded first end and second end of the heat exchanger are spaced apart from the inner case and the outer case. 2. The refrigerator according to claim 1, wherein at least one portion of the heat exchanger is curved to form a longer passage than a linear distance between the first end and the second end. 3. The refrigerator according to claim 1, wherein the heat exchanger is a shell and tube heat exchanger, a pipe contact heat exchanger, or a dual pipe heat exchanger. 4. The refrigerator according to claim 1, wherein the heat exchanger comprises: a first tube to guide the refrigerant exhausted from the evaporator toward a compressor; anda second tube to guide the refrigerant exhausted from a condenser,wherein a diameter of the first tube is larger than a diameter of the second tube. 5. The refrigerator according to claim 4, wherein the first end and the second end of the heat exchanger are welded to the inner case and the outer case, respectively, with the first tube and the second tube spaced apart from each other. 6. The refrigerator according to claim 5, wherein: two communication holes are formed in the outer case and are spaced apart a predetermined distance from each other;two communication holes are formed in the inner case and are spaced apart a predetermined distance from each other; andwherein the two communication holes in the outer case and the two communication holes in the inner case allow the welding of the first tube and the second tube. 7. The refrigerator according to claim 4, wherein the first tube has a first end fixed through the inner case and a second end fixed through the outer case, and the second tube has a first end fixed through the inner case and a second end fixed through the outer case. 8. The refrigerator according to claim 4, wherein the heat exchanger comprises a guide ring to space the first tube and the second tube apart from the inner case and the outer case. 9. The refrigerator according to claim 8, wherein the guide rings surround the first tube and the second tube. 10. The refrigerator according to claim 1, further comprising a plurality of spacers arranged to maintain the vacuum space between the inner case and the outer case. 11. The refrigerator according to claim 10, further comprising a first support plate provided in contact with one of an outer surface of the inner case and an inner surface of the outer case, wherein the plurality of the spacers are fixed to the first support plate. 12. The refrigerator according to claim 11, wherein the heat exchanger is arranged between the plurality of the spacers such that the heat exchanger does not contact the plurality of spacers. 13. The refrigerator according to claim 11, wherein: the second end is welded to a communication hole formed in the outer case and the first end is welded to a communication hole formed in the inner case; anda communication hole is formed in a portion of the first support plate corresponding to a welded portion between the inner case and the first end of the heat exchanger, the communication hole formed in the portion of the first support plate being concentric with the welded portion between the inner case and the first end of the heat exchanger, and the communication hole formed in the portion of the first support plate has a larger diameter than the welded portion between the inner case and the first end of the heat exchanger. 14. A refrigerator comprising: an inner case including a storage space;an outer case spaced apart a distance from the inner case;a vacuum space provided between the inner case and the outer case to provide insulation between the inner case and the outer case;a heat exchanger that is arranged in the vacuum space and that is configured to facilitate heat exchange between refrigerant exhausted from an evaporator and refrigerant exhausted from a condenser; anda guide ring arranged to surround the heat exchanger to support the heat exchanger spaced apart from the inner case and the outer case,wherein a first end and a second end of the heat exchanger are welded to the inner case and the outer case, respectively,wherein portions other than the welded first end and second end of the heat exchanger are spaced apart from the inner case and the outer case via the guide ring, andwherein only the first end and the second end of the heat exchanger are in contact with the inner case and the outer case, respectively. 15. The refrigerator according to claim 14, wherein the heat exchanger is arranged between a plurality of the spacers such that the heat exchanger does not contact the plurality of the spacers. 16. The refrigerator according to claim 14, wherein the heat exchanger is configured to perform heat exchange by conduction within the vacuum space, and the heat exchanger has at least one curved portion forming a passage longer than a linear distance between the first end and the second end of the heat exchanger. 17. A refrigerator comprising: an inner case including a storage space;an outer case spaced apart a distance from the inner case;a vacuum space provided between the inner case and the outer case to provide insulation between the inner case and the outer case;a first refrigerant pipe to guide a first temperature refrigerant gas from an evaporator to a compressor;a second refrigerant pipe to provision flow of a second temperature refrigerant liquid before the second temperature refrigerant liquid is sucked into the evaporator; anda heat exchanger to generate heat exchange between refrigerant that has passed the evaporator and refrigerant that is being drawn into the evaporator,wherein the first refrigerant pipe and the second refrigerant pipe pass through the vacuum space and the first refrigerant pipe and the second refrigerant pipe are welded to the inner case and the outer case, respectively,wherein the heat exchanger is configured to perform heat exchange between the first refrigerant pipe and the second refrigerant pipe by conduction within the vacuum space,wherein portions other than a welded first end and a welded second end are spaced apart from the inner case and the outer case, andwherein only the first end and the second end of the heat exchanger are welded or in contact with the inner case and the outer case. 18. The refrigerator according to claim 17, further comprising a guide ring arranged to surround the first refrigerant pipe and the second refrigerant pipe connected to the first refrigerant pipe, and to support the first refrigerant pipe and the second refrigerant pipe to be spaced apart from the inner case and the outer case within the vacuum space. 19. The refrigerator according to claim 17, wherein the first refrigerant pipe is welded to a first communication hole formed in the outer case and a second communication hole formed in the inner case, and the second refrigerant pipe is welded to a third communication hole formed in the outer case and a fourth communication hole formed in the inner case. 20. The refrigerator according to claim 17, further comprising a spacer provided between the inner case and the outer case to maintain the vacuum space, and a first support plate provided in contact with one of an outer surface of the inner case and an inner surface of the outer case.
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이 특허에 인용된 특허 (22)
Benson David K. (Golden CO) Potter Thomas F. (Denver CO), Compact vacuum insulation.
LeClear Douglas D. (St. Joseph Township ; Berrien County MI) Chen Kenneth P. (Tustin CA) Thiele Scott A. (St. Joseph MI) Cur Nihat O. (Royalton Township ; Berrien County MI) Khanpara Jatin C. (St. Jo, Control algorithm for dual temperature evaporator system.
Kruck Richard W. (Sodus Township ; Berrien County MI) Cur Omer N. (St. Joseph Township ; Berrien County MI), Heavy gas-filled multilayer insulation panels and method of manufacture thereof.
Gelbard Robert B. (Louisville KY) Schreck Raymond M. (Louisville KY), High efficiency heat exchange for refrigeration suction line/capillary tube assembly.
Radermacher K. Reinhard H. (Silver Spring MD) Kim Kwangil (Hyattsville MD) Kopko William L. (Springfield VA) Pannock Jurgen (Stevensville MI), Tandem refrigeration system.
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