초록 ▼

The present invention relates to a door duct assembly for a refrigerator. In the present invention, the cold air delivered from a cold air duct of a refrigerator main body to a door 30 through a cold air communication portion 55 is discharged into a storage space through cold air vents 61 formed in

The present invention relates to a door duct assembly for a refrigerator. In the present invention, the cold air delivered from a cold air duct of a refrigerator main body to a door 30 through a cold air communication portion 55 is discharged into a storage space through cold air vents 61 formed in a flow guide 60. The cold air communication portion 55 is formed in a door basket 40 or the flow guide 60. The door baskets 40 or the flow guide 60 is mounted on a door liner 33 defining a rear surface of the door 30. According to the present invention, there are advantages in that it is relatively easy to manufacture a door, the cold air flows uniformly in the door, the strength of the flow guide for defining a flow channel in the door is relatively increased, and dewdrops are prevented from being formed upstream of the flow channel.

대표청구항 ▼

The invention claimed is: 1. A door duct assembly for a refrigerator, comprising: a cold air communication portion detachably installed on a door for opening and closing a storage space of a refrigerator main body, the cold air communication portion including a connecting duct selectively connected

The invention claimed is: 1. A door duct assembly for a refrigerator, comprising: a cold air communication portion detachably installed on a door for opening and closing a storage space of a refrigerator main body, the cold air communication portion including a connecting duct selectively connected to a cold air duct of the refrigerator main body; a flow guide for defining a flow channel in cooperation with a door liner defining a rear surface of the door, the flow channel allowing a cold air supplied through the cold air communication portion to flow therethrough, the flow guide having a rear surface on which a flow channel formation rib is provided to define the flow channel; and an insulation flow channel body causing the flow channel defined by the flow guide and the cold air communication portion to communicate with each other, the insulation flow channel body being installed by inserting at least two flow channel bodies made of an insulating material into the rear surface portion of the flow guide. 2. The door duct assembly as claimed in claim 1, wherein the flow channel formation rib has a distal end that comes into contact with the door liner to define the flow channel with a flow cross-sectional area that is not larger than that of the connecting duct, and a flow channel defined in the insulation flow channel body has a flow cross-sectional area that is formed not to be larger than that of the connecting duct. 3. The door duct assembly as claimed in claim 1, wherein the insulation flow channel body comprises a first flow channel body having an inlet in communication with the connecting duct, and a second flow channel body formed with a communication passage having a side communicating with the inlet of the first flow channel body and the other side communicating with the flow channel defined by the flow channel formation rib. 4. The door duct assembly as claimed in claim 3, wherein the cold air communication portion is formed to penetrate through one of connecting skirts downward extending at both ends of a door basket, and both ends of the flow guide are positioned between the connecting skirts at both the ends of the door basket. 5. The door duct assembly as claimed in claim 4, wherein the flow channel formation rib is -shaped to be elongated in a widthwise direction on the rear surface of the flow guide, and is further provided with a converging portion upstream of a flow of the cold air, the converging portion causing the cross-sectional area of the flow of the cold air to be reduced. 6. The door duct assembly as claimed in claim 5, wherein a plurality of cold air vents are formed at an area of the flow guide divided by the flow channel formation rib, and the cold air is discharged into the storage space through the cold air vents in the area divided by the flow channel formation rib. 7. The door duct assembly as claimed in claim 1, wherein a connecting portion is further provided in an intermediate portion of the flow guide, the connecting portion comprising an insertion hole and a catching hole communicating therewith, the insertion hole and the catching hole having different diameters from each other and communicating with the flow channel defined by the flow guide and the door liner, the cold air is supplied to and discharged through the insertion hole and catching hole, and the door liner further comprises a supporting/catching member at position corresponding to the connecting portion, the supporting/catching member comprising a catching plate with a diameter larger than that of the catching hole at a distal end of a connecting neck portion with a relatively smaller diameter, thereby enabling the connecting portion to be caught and supported by the supporting/catching member. 8. The door duct assembly as claimed in claim 7, wherein the connecting portion is formed to be recessed when viewed from the front of the flow guide, and a plurality of catching slots are formed around an inner peripheral portion of the connecting portion. 9. The door duct assembly as claimed in claim 8, wherein a mounting cover is detachably mounted on the connecting portion, the mounting cover comprising a front plate which covers the interior of the connecting portion and through which a plurality of cold air vents are formed, and a side wall formed with an insertion guide and a catching hook around an edge of the front plate, the insertion guide and the catching hook being caught in the catching slots. 10. The door duct assembly as claimed in claim 9, wherein the mounting cover is formed to contain at least one of a deodorization component and an anion generating component. 11. The door duct assembly as claimed in claim 9, wherein a deodorizer for removing an odor from the cold air is further provided within the connecting portion covered with the mounting cover. 12. The door duct assembly as claimed in claim 11, wherein the deodorizer is fixed to a rear surface of the front plate defining the front surface of the mounting cover, and a fixing rib into which an edge of the deodorizer is fitted is provided on the rear surface of the front plate. 13. A door duct assembly for a refrigerator, comprising: a cold air communication portion detachably installed on a door for opening and closing a storage space of a refrigerator main body, the cold air communication portion including a connecting duct selectively connected to a cold air duct of the refrigerator main body; a flow guide for defining a flow channel in cooperation with a door liner defining a rear surface of the door, the flow channel allowing a cold air supplied through the cold air communication portion to flow therethrough, the flow guide being formed with a plurality of cold air vents for discharging the cold air into the storage space; a connecting portion formed in a portion of the flow guide, the connecting portion communicating with the flow channel defined by the flow guide and the door liner and being supplied with the cold air and discharging the cold air; a mounting cover detachably installed on the connecting portion to selectively open and close the interior of the connecting portion, the mounting cover comprising a plurality of cold air vents; and a deodorizer installed within the connecting portion covered with the mounting cover to remove an odor from the cold air. 14. The door duct assembly as claimed in claim 13, wherein the connecting portion is formed to be recessed when viewed from the front of the flow guide, and a plurality of catching slots are formed around an inner peripheral portion of the connecting portion. 15. The door duct assembly as claimed in claim 14, wherein the mounting cover comprises a front plate which covers the interior of the connecting portion and through which the plurality of cold air vents are formed, and a sidewall formed with an insertion guide and a catching hook around an edge of the front plate, the insertion guide and the catching hook being caught in the catching slots. 16. The door duct assembly as claimed in claim 14, wherein the mounting cover comprises a front plate which covers the interior of the connecting portion and through which the plurality of cold air vents are formed, a side wall formed around an edge of the front plate, a hinge portion causing the mounting cover to be pivotably connected to the connecting portion, and a catching hook installed at a position opposite to the hinge portion, the catching hook causing the mounting cover to be caught by and fixed to the connecting portion. 17. The door duct assembly as claimed in claim 15, wherein the deodorizer is fixed to a rear surface of a front plate, and a fixing rib for fixing the deodorizer is provided on the rear surface of the front plate. 18. The door duct assembly as claimed in claim 13, wherein the mounting cover is formed to contain at least one of a deodorization component and an anion generating component. 19. A door duct assembly mounting structure for a refrigerator, comprising: a cold air communication portion detachably installed on a door for opening and closing a storage space of a refrigerator main body, the cold air communication portion including a connecting duct selectively connected to a cold air duct of the refrigerator main body; a flow guide for defining a flow channel in cooperation with a door liner defining a rear surface of the door, the flow channel allowing a cold air supplied through the cold air communication portion to flow therethrough, the flow guide being formed with a plurality of cold air vents for discharging the cold air into the storage space, the flow channel having both ends caught by the door liner; a connecting portion formed at an intermediate portion of the flow guide, the connecting portion communicating with the flow channel defined by the flow guide and the door liner and being supplied with the cold air and then discharging the cold air, the connecting portion comprising an insertion hole and a catching hole that are communicate with each other and have different diameters; and a supporting/catching member provided on the door liner at a position corresponding to the connecting portion, the supporting/catching member comprising a catching plate with a diameter larger than that of the catching hole at a distal end of a connecting neck portion with a relatively smaller diameter, thereby enabling the connecting portion to be caught and supported by the supporting/catching member. 20. The door duct assembly mounting structure as claimed in claim 19, wherein the flow guide is coupled to a door basket installed on the rear surface of the door, and hook portions are formed at both ends of the door basket to be caught by catching portions formed on the door liner. 21. The door duct assembly mounting structure as claimed in claim 19, wherein hook portions are formed at both ends of the flow guide to be caught by catching portions formed on the door liner, and the cold air communication portion is provided to penetrate through any one of both the ends thereof. 22. The door duct assembly mounting structure as claimed in claim 20, wherein stoppers are formed above the catching portions formed on the door liner, the stoppers protruding less than the catching portions to prevent the door basket or the flow guide from being detached. 23. The door duct assembly mounting structure as claimed in claim 22, wherein the supporting/catching member comprises a mounting plate mounted on the door liner, a connecting neck portion provided on the mounting plate to have a length corresponding to the thickness of a rim of the catching hole, and a catching plate provided at the distal end of the connecting neck portion so as to correspond to the shape and size of the insertion hole. 24. The door duct assembly mounting structure as claimed in claim 23, wherein a deodorizer is fixed to a rear surface of a front plate, and a fixing rib for fixing the deodorizer is provided on the rear surface of the front plate. 25. The door duct assembly mounting structure as claimed in claim 23, wherein the mounting cover is formed to contain at least one of a deodorization component and an anion generating component.