A refrigerator having an intermediate storage compartment, which has an improved structure of a return flow passage to return cold air from the intermediate storage compartment. The refrigerator includes a first evaporator to supply cold air to an upper storage compartment, a second evaporator to su
A refrigerator having an intermediate storage compartment, which has an improved structure of a return flow passage to return cold air from the intermediate storage compartment. The refrigerator includes a first evaporator to supply cold air to an upper storage compartment, a second evaporator to supply cold air to a lower storage compartment, a cold air supply duct to supply cold air generated at the second evaporator to an intermediate storage compartment, and a curved section formed at a top of the intermediate storage compartment to uniformly distribute the cold air supplied via the cold air supply duct in the intermediate storage compartment. The refrigerator also includes a cold air return duct to return cold air from the intermediate storage compartment, and an ice-making cold air return duct to return cold air from an ice maker. The cold air return duct is joined with the ice-making cold air return duct.
대표청구항▼
1. A refrigerator comprising: a cabinet formed with an upper storage compartment, an intermediate storage compartment, and a lower storage compartment, which are partitioned from one another by insulated partition walls;a first evaporator to supply cold air to the upper storage compartment;a second
1. A refrigerator comprising: a cabinet formed with an upper storage compartment, an intermediate storage compartment, and a lower storage compartment, which are partitioned from one another by insulated partition walls;a first evaporator to supply cold air to the upper storage compartment;a second evaporator to supply cold air to the lower storage compartment;a cold air diffuser is disposed in the ceiling of the intermediate storage compartment;a cold air supplier arranged beneath a rear wall of the upper storage compartment, to supply cold air to the intermediate storage compartment; anda cold air supply duct to supply cold air generated at the second evaporator to the cold air supplier;wherein the cold air diffuser has a recessed structure to guide the cold air discharged through the cold air supplier, and a recessed front portion of the cold air diffuser is elevated relative to a recessed rear portion of the cold air diffuser. 2. The refrigerator according to claim 1, wherein: the first evaporator is arranged at a rear side of the upper storage compartment; andthe second evaporator is arranged at a rear side of the lower storage compartment. 3. The refrigerator according to claim 2, wherein the cold air supplier comprises a circulating fan to blow cold air to an outlet provided at a rear wall of the intermediate storage compartment, and a cold air regulator to regulate an amount of cold air to be supplied to the intermediate storage compartment. 4. The refrigerator according to claim 1, wherein the cold air diffuser comprises a first curved portion arranged at an entrance of the intermediate storage compartment while being downwardly protruded, a second curved portion extending inwardly from the first curved portion while being sharply inclined in an upward direction, and a third curved portion extending inwardly from the second curved portion while being inclined in a downward direction. 5. The refrigerator according to claim 2, further comprising: an ice maker arranged in the upper storage compartment, to produce ice;an ice-making cold air supply duct to supply cold air from the second evaporator to the ice maker; andan ice-making cold air return duct to return the cold air from the ice maker to the second evaporator,wherein the ice-making cold air return duct is integrally formed with a cold air return duct partitioned from the ice-making cold air return duct by an insulated partition wall, to return the cold air used to cool the intermediate storage compartment to the second evaporator. 6. The refrigerator according to claim 1, wherein the intermediate storage compartment comprises a cold air inlet arranged at one side of a rear wall of the intermediate storage compartment, to suck cold air used to cool the intermediate storage compartment such that the sucked cold air is returned to the second evaporator, and an introduction preventing cap arranged to cover an upper portion of the cold air inlet, the introduction preventing cap functioning to prevent cold air supplied to the intermediate storage compartment from being directly introduced into the cold air inlet. 7. The refrigerator according to claim 1, wherein the intermediate storage compartment comprises a cold air diffusion passage formed in a top wall of the intermediate storage compartment, to move cold air discharged through the cold air supply duct, and at least one cold air outlet formed at the cold air discharge passage, to discharge cold air into the intermediate storage compartment. 8. The refrigerator according to claim 7, wherein the at least one cold air outlet comprises cold air outlets concentratedly arranged near a front portion of the intermediate storage compartment. 9. A refrigerator comprising an upper storage compartment, an intermediate storage compartment, and a lower storage compartment, which are partitioned from one another by insulated partition walls, a first evaporator arranged at a rear side of the upper storage compartment, to supply cold air to the upper storage compartment, and a second evaporator arranged at a rear side of the lower storage compartment, to supply cold air to the lower storage compartment, further comprising: a cold air diffuser is disposed in the ceiling of the intermediate storage compartment;a cold air supplier comprising a cold air supply duct to supply cold air from the second evaporator to the intermediate storage compartment, a cold air return duct to return the cold air used to cool the intermediate storage compartment to the second evaporator, a circulating fan to discharge cold air supplied from the cold air supply duct into the intermediate storage compartment, and a cold air regulator to regulate an amount of cold air discharged into the intermediate storage compartment,wherein the cold air supplier is arranged beneath a rear wall of the upper storage compartment, to supply cold air to an outlet formed at one side of the intermediate storage compartment;wherein the cold air diffuser has a recessed structure to guide the cold air discharged through the cold air supplier, and a recessed front portion of the cold air diffuser is elevated relative to a recessed rear portion of the cold air diffuser. 10. The refrigerator according to claim 9, wherein the intermediate storage compartment comprises a cold air inlet arranged at a rear side of the intermediate storage compartment, to suck cold air used to cool the intermediate storage compartment such that the sucked cold air is returned to the second evaporator, and an introduction preventing cap arranged to cover an upper portion of the cold air inlet, the introduction preventing cap functioning to prevent cold air discharged from the outlet from being directly introduced into the cold air inlet. 11. The refrigerator according to claim 9, further comprising: an ice maker arranged in the upper storage compartment;an ice-making cold air supply duct to supply cold air from the second evaporator to the ice maker; andan ice-making cold air return duct to return the cold air from the ice maker to the second evaporator,wherein the cold air return duct to return cold air used to cool the intermediate storage compartment is joined with the ice-making cold air return duct. 12. The refrigerator according to claim 11, wherein an insulated partition wall is arranged between the cold air return duct and the ice-making cold air return duct, to insulate the cold air return duct and the ice-making cold air return duct from each other. 13. The refrigerator according to claim 9, wherein the cold air diffuser comprises a first curved portion arranged at an entrance of the intermediate storage compartment while being downwardly protruded, a second curved portion extending inwardly from the first curved portion while being sharply inclined in an upward direction, and a third curved portion extending inwardly from the second curved portion while being inclined in a downward direction. 14. The refrigerator according to claim 9, wherein the intermediate storage compartment comprises a cold air diffusion passage formed in a top wall of the intermediate storage compartment, to guide cold air supplied through the cold air supplier such that the cold air is discharged through the outlet. 15. The refrigerator according to claim 14, wherein the intermediate storage compartment further comprises at least one cold air outlet formed through a top of the intermediate storage compartment, to communicate the cold air diffusion passage and the intermediate storage compartment. 16. The refrigerator according to claim 15, wherein the cold air diffusion passage is surrounded by an insulator. 17. A refrigerator comprising an upper storage compartment, an intermediate storage compartment, and a lower storage compartment, which are partitioned from one another by insulated partition walls, further comprising: a first evaporator to supply cold air to the upper storage compartment;a second evaporator arranged at a rear side of the lower storage compartment, to supply cold air to the lower storage compartment;a cold air supply duct extending from the second evaporator to a rear side of the intermediate storage compartment, to supply cold air generated at the second evaporator to the intermediate storage compartment;a cold air supplier arranged beneath a rear wall of the upper storage compartment, to supply cold air supplied from the cold air supply duct to the intermediate storage compartment; anda cold air diffuser formed at a top of the intermediate storage compartment, the cold air diffuser having a recessed structure to allow the cold air supplied through the cold air supplier to be diffused after reaching a front side of the intermediate storage compartment;wherein the cold air diffuser is disposed in the ceiling of the intermediate compartment,wherein the cold air diffuser has a recessed structure to guide the cold air discharged through the cold air supplier, and a recessed front portion of the cold air diffuser is elevated relative to a recessed rear portion of the cold air diffuser. 18. The refrigerator according to claim 17, wherein the cold air diffuser comprises a first curved portion arranged at an entrance of the intermediate storage compartment while being downwardly protruded, a second curved portion extending inwardly from the first curved portion while being sharply inclined in an upward direction, and a third curved portion extending inwardly from the second curved portion while being inclined in a downward direction. 19. The refrigerator according to claim 17, further comprising: a cold air return duct to return cold air from the intermediate storage compartment; andan ice-making cold air return duct to return cold air from an ice maker, which produces ice,wherein the cold air return duct is joined with the ice-making cold air return duct, and an insulated partition wall is arranged between the cold air return duct and the ice-making cold air return duct, to insulate the cold air return duct and the ice-making cold air return duct from each other. 20. The refrigerator according to claim 17, wherein the intermediate storage compartment comprises: a cold air inlet arranged at one side of a rear portion of the intermediate storage compartment, to suck cold air from the intermediate storage compartment, the cold air inlet communicating with the cold air return duct; andan introduction preventing cap arranged to cover an upper portion of the cold air inlet, the introduction preventing cap functioning to prevent cold air discharged into the intermediate storage compartment from being directly introduced into the cold air inlet. 21. The refrigerator according to claim 1, wherein the cold air supplier is disposed on the same plane as the cold air diffuser. 22. The refrigerator according to claim 9, wherein the cold air supplier is disposed on the same plane as the cold air diffuser. 23. The refrigerator according to claim 17, wherein the cold air supplier is disposed on the same plane as the cold air diffuser. 24. A refrigerator comprising: a cabinet having a drawer-type storage compartment;an evaporator to supply cold air to the drawer-type storage compartment; andan insulated partition wall including curved portions to form a raised ceiling section of the drawer-type storage compartment; anda cold air outlet to introduce cold air from the evaporator into the drawer-type storage compartment,wherein the cold air diffuser has a recessed structure to guide the cold air discharged through the cold air supplier, and a recessed front portion of the cold air diffuser is elevated relative to a recessed rear portion of the cold air diffuser. 25. The refrigerator according to claim 24, wherein the cold air outlet is disposed at one of the curved portions forming the raised ceiling section.
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