IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0397269
(2003-03-27)
|
우선권정보 |
KR-0052254 (2002-08-31) |
발명자
/ 주소 |
- Jeong, In-Chang
- Bae, Hak-Gyun
- Kim, Myung-Wouk
|
출원인 / 주소 |
- Samsung Electronics Co., Ltd.
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
11 |
초록
▼
A refrigerator which performs various refrigeration cycles by variously changing refrigerant paths, thus accomplishing refrigerant evaporating temperatures suitable for a refrigerator compartment evaporator and a freezer compartment evaporator, respectively, and which cools a selected one of a refri
A refrigerator which performs various refrigeration cycles by variously changing refrigerant paths, thus accomplishing refrigerant evaporating temperatures suitable for a refrigerator compartment evaporator and a freezer compartment evaporator, respectively, and which cools a selected one of a refrigerator compartment and a freezer compartment as desired to enhance a cooling efficiency and increasing a cooling speed of the refrigerator.
대표청구항
▼
1. A refrigerator, comprising:a compressor; a condenser; a first evaporator; a second evaporator, the compressor, the condenser, the first evaporator and the second evaporator being connected to each other in series to perform a refrigeration cycle; a first expansion unit reducing a refrigerant pres
1. A refrigerator, comprising:a compressor; a condenser; a first evaporator; a second evaporator, the compressor, the condenser, the first evaporator and the second evaporator being connected to each other in series to perform a refrigeration cycle; a first expansion unit reducing a refrigerant pressure level to a first pressure level such that a refrigerant flows into the first evaporator; a second expansion unit reducing the refrigerant pressure level to a second pressure level such that the refrigerant flows into the second evaporator first and second fans; first and second compartments to transfer heat to the first and second evaporators by the first and second fans, respectively; a first refrigerant path provided between an outlet of the compressor and an inlet of the second evaporator; a third expansion unit provided between an outlet of the condenser and an inlet of the second evaporator; a first path switching unit switching a first refrigerant path such that the refrigerant, flowing from the condenser into one of the first and third expansion units, flows to a remaining one of the first and third expansion units; a second refrigerant path provided between an outlet of the first evaporator and an inlet of the compressor; and a second path switching unit switching the second refrigerant path such that the refrigerant, flowing from the first evaporator into one of the second expansion unit and the compressor, flows to a remaining one of the second expansion unit and the compressor. 2. The refrigerator according to claim 1, wherein the second pressure level is lower than the first pressure level.3. The refrigerator according to claim 1, wherein the first and second expansion unit each comprises a capillary tube.4. A refrigerator, comprising;a compressor; a condenser; a first evaporator; a second evaporator, the compressor, the condenser, the first evaporator and the second evaporator being connected to each other in series to perform a refrigeration cycle, a first expansion unit reducing a refrigerant pressure level to a first pressure level such that a refrigerant flows into the first evaporator; a second expansion unit reducing the refrigerant pressure level to a second pressure level such that the refrigerant flows into the second evaporator; a third expansion unit provided between an outlet of the condenser and an inlet of the second evaporator; a first path switching unit switching a first refrigerant path such that the refrigerant, flowing from the condenser into one of the first and third expansion units, flows to a remaining one of the first and third expansion units; and a second path switching unit switching a second refrigerant path such that the refrigerant, flowing from the first evaporator into one of the second expansion unit and the compressor, flows to a remaining one of the second expansion unit and the compressor. 5. The refrigerator according to claim 4, wherein the second pressure level is lower than the first pressure level.6. The refrigerator according to claim 4, wherein the first, second, and third expansion units each comprises a capillary tube.7. The refrigerator according to claim 4, wherein the third expansion unit reduces the pressure level of the refrigerant flowing from the path switching unit to the second pressure level to make the refrigerant flow into the second evaporator.8. A refrigerator, comprising;a compressor; a condenser; a first evaporator; a second evaporator, the compressor, the condenser, the first evaporator and the second evaporation being connected to each other in series to perform a refrigeration cycle; a first expansion unit reducing a refrigerant pressure level to a first pressure level such that a refrigerant flows into the first evaporator; a second expansion unit reducing the refrigerant pressure level to a second pressure level such that the refrigerant flows into the second evaporator; a third expansion unit provided between an outlet of the condenser and an inlet of the second evaporator; a first refrigerant path provided between an outlet of the first evaporator and an inlet of the compressor; a first path switching unit switching the first refrigerant path such that the refrigerant, flowing from the first evaporator into one of the second expansion unit and the compressor, flows to a remaining one of the second expansion unit and the compressor; and a second path switching unit switching a second refrigerant path such that the refrigerant, flowing from the condenser into one of the first and third expansion units, flows to a remaining one of the first and third expansion units. 9. The refrigerator according to claim 8, wherein the first and second expansion unit each comprises a capillary tube.10. A refrigerator, comprising;a compressor; a condenser; a first evaporator; a second evaporator, the compressor, the condenser, the first evaporator and the second evaporator connected to each other in series to perform a refrigeration cycle; a first expansion unit reducing a refrigerant pressure level to a first pressure level such that a refrigerant flows into the first evaporator; a second expansion unit reducing the refrigerant pressure level to a second pressure level such that the refrigerant flows into the second evaporator; a third expansion unit provided between an outlet of the condenser and an inlet of the second evaporator; a first refrigerant path provided between an outlet of the compressor and an inlet of the second evaporator; and a first path switching unit switching the first refrigerant path such that the refrigerant, flowing from the condenser into one of the first and third expansion units, flows to a remaining one of the first and third expansion units; a second refrigerant path provided between an outlet of the first evaporator and an inlet of the compressor; and a second path switching unit switching the second refrigerant path such that the refrigerant, flowing from the first evaporator into one of the second expansion unit and the compressor, flows to a remaining one of the second expansion unit and the compressor. 11. The refrigerator according to claim 10, wherein the third expansion unit reduces the pressure level of the refrigerant flowing from the first path switching unit to the second pressure level to make the refrigerant flow into the second evaporator.12. The refrigerator according to claim 10, wherein the first, second and third expansion units each comprise a capillary tube.13. A refrigerator having first and second compartments and one or more refrigerant paths including a compressor, a condenser, and first and second evaporators, operatively connected in series, comprising;first and second fans to transfer heat to the first and second evaporators from the first and second compartments, respectively; a first expansion unit provided in a refrigerant path before the first evaporator to reduce a refrigerant pressure level to a first pressure level such that a refrigerant with the first pressure level flows into the first evaporator; a second expansion unit provided in the refrigerant path before the second evaporator to reduce a refrigerant pressure level to a second pressure level such that the refrigerant with the second pressure level flows into the second evaporator; a third expansion unit provided between an outlet of the condenser and an inlet of the second evaporator; a first reconfiguration unit to reconfigure the refrigerant path such that the refrigerant, flowing from the condenser into one of the first and third expansion units, flows to a remaining one of the first and third expansion units; and a second reconfiguration unit to reconfigure the refrigerant path such the refrigerant, flowing from the first evaporator into one of the second expansion unit and the compressor, flows to a remaining one of the second expansion unit and the compressor. 14. The refrigerator according to claim 13, wherein the second pressure level is lower than the first pressure level.15. The refrigerator according to claim 13, wherein the first and second expansion units each comprises a capillary tube.16. The refrigerator according to claim 13, wherein:when the refrigerant flowing from the condenser flows into the first expansion unit, the first compartment is cooled; and when the refrigerant flowing from the condenser flows into the third expansion unit, the second compartment is cooled. 17. The refrigerator according to claim 13, wherein the first reconfiguration unit is a three-way valve.18. The refrigerator according to claim 13, wherein the second pressure level is lower than the first pressure level.19. The refrigerator according to claim 13, wherein the first, second, and third expansion units each comprises a capillary tube.20. The refrigerator according to claim 13, wherein the third expansion unit reduces the pressure level of the refrigerant flowing from the first reconfiguration unit to the second pressure level such that with the second pressure level flows into the second evaporator.21. The refrigerator according to claim 13, wherein:when the refrigerant flowing from the first evaporator flows into the compressor only the first compartment is cooled; and when the refrigerant flowing from the first evaporator flows into the second expansion unit both the first and second compartments are cooled. 22. The refrigerator according to claim 13, wherein the second reconfiguration unit is a three-way valve.23. The refrigerator according to claim 13, wherein the first and second expansion unit each comprises a capillary tube.24. The refrigerator according to claim 13, wherein:when the refrigerant flowing from the condenser flows into the third expansion unit, only the second compartment is cooled; when the refrigerant flowing from the condenser flows into the first expansion unit and the refrigerant flowing from the first evaporator flows into the second expansion unit, both the first and second compartments are cooled; and when the refrigerant flowing from the condenser flows into the first expansion unit and the refrigerant flowing from the first evaporator flows into the compressor, only the first compartment is cooled. 25. The refrigerator according to claim 13, wherein the first, second, and third expansion units each comprises a capillary tube.26. The refrigerator according to claim 13, wherein the third expansion unit reduces the pressure level of the refrigerant flowing from the first reconfiguration unit to the second pressure level such that with the second pressure level flows into the second evaporator.27. The refrigerator according to claim 14, wherein the second pressure level is lower than the first pressure level so that an evaporating temperature of the refrigerant in the first evaporator is higher than an evaporating temperature of the refrigerant in the second evaporator.28. A refrigerator having first and second compartments and including a compressor, a condenser, and first and second evaporators, operatively connected, comprising;a first expansion unit provided in a refrigerant path before the first evaporator to reduce a refrigerant pressure level in the first evaporator; a second expansion unit provided in the refrigerant path before the second evaporator to reduce a refrigerant pressure level in the second evaporator; a third expansion unit provided between an outlet of the condenser and an inlet of the second evaporator; and a reconfiguration unit to reconfigure the refrigerant path among the compressor, the condenser, and the first and second evaporators such that when the refrigerant flowing from the condenser flows into the third expansion unit, only the second compartment is cooled, when the refrigerant flowing from the condenser flows into the first expansion unit and the refrigerant flowing from the first evaporator flows into the second expansion unit, both the first and second compartments are cooled, and when the refrigerant flowing from the condenser flows into the first expansion unit and the refrigerant flowing from the first evaporator flows into the compressor, only the first compartment is cooled.
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