WO2008054152A1

WO2008054152A1 - Refrigerator

Info

Publication number: WO2008054152A1
Application number: PCT/KR2007/005486
Authority: WO
Inventors: Seung-Mok Lee
Original assignee: Lg Electronics Inc.
Priority date: 2006-11-03
Filing date: 2007-11-01
Publication date: 2008-05-08
Also published as: US20100011796A1

Abstract

With an embodiment of the present invention, the inside of the ice-making chamber provided in the cooling chamber door is provided with the dewing prevention member to suppress a dewing phenomenon generated in the outer surface of the ice-making chamber by colliding the cold air discharged to the inside of the ice-making chamber with the inner wall of the ice-making chamber and the cold air guide is provided in the cold air passing hole of the ice-making chamber to prevent the infiltration of foreign materials in the inside of the ice-making chamber as well as to smoothly perform the circulation of cold air in the inside of the ice-making chamber.

Description

REFRIGERATOR

Technical Field

[1] This document relates to a refrigerator.

Background Art

[2] Generally, a refrigerator is partitioned into a cooling chamber for freshly storing foods and a freezing chamber for storing foods in a freezing state. And, a side by side type, a top mount type, and a bottom freezer type is divided according to a position of the cooling chamber and the freezing chamber.

[3] In detail, the side by side type refrigerator is a structure wherein a cooling chamber and a freezing chamber stand side by side at both sides. The top mount type refrigerator is a structure wherein the freezing chamber is provided in an upper side of the cooling chamber. The bottom freezer type refrigerator is a structure wherein the freezing chamber is provided in a lower side of the cooling chamber.

[4] Recently, the demand for the bottom freezer type refrigerator wherein the freezing chamber is provided in the lower side and the cooling chamber is provided in the upper side has been significantly grown.

[5] The bottom freezer type refrigerator is formed of a structure that can be drawn in and out forward and backward since the door of the cooling chamber is provided in a two door type and the freezing chamber is provided in a drawer type. And, the freezing chamber may be provided with a freezing chamber drawer capable of receiving frozen foods and a separate storage box may be provided on the upper side of the freezing chamber drawer. Both the storage box and the drawer are provided to be able to be drawn in and out frontward and backward by a rail.

[6] Meanwhile, the bottom freezer type refrigerator has a feature that an ice-maker is positioned at a cooling chamber side. In other words, the ice-maker may be installed in the inside of the cooling chamber or may be formed in an inner side of the cooling chamber door. In the case where the ice-maker is mounted to the rear surface of the cooling chamber door, a cold air flow path to supply cold air passing through an evaporator mounted to the rear surface of the freezing chamber to the ice-maker should be formed. As one of such methods, there is a method that connects a space ac- comodating the evaporator and the ice-maker mounted to the door by forming a cold air duct in the inside of a side wall of a refrigerator main body. In this case, the cold air duct extended from the space accomodating the evaporator is extended upward along the side wall of the refrigerator main body and the cold air outlet is positioned at the upper side of the side wall of the cooling chamber. And, the side surface of the ice- maker mounted to the rear surface of the cooling chamber door is formed with a cold air inlet. With such a structure, if the cooling chamber door is closed, the cold air inlet formed in the ice-maker and the cold air outlet formed in the side wall of the cooling chamber are conformed. Then, the cold air discharged from the cold air duct is supplied to the ice-maker. Disclosure of Invention Technical Problem

[7] As above, in the case of the bottom freezer type of refrigerator wherein the ice- maker is mounted to the cooling chamber door, if the cooling chamber door is opened, the cold air outlet formed on the side wall of the cooling chamber and the cold air inlet formed on the side surface of the ice-maker is exposed to the outside as it is. Therefore, foreign materials such dust, etc., are infiltrated through the cold air outlet and the cold air inlet. As a result, when the cooling chamber door is closed, a problem that the flow of cold air is interrupted by the foreing materials occurs.

[8] Also, in the case where the cold air inlet is formed of only a hole without having a separate cold air guide apparatus, the cold air discharged from the cold air outlet is discharged in a straight. As a result, a problem the circulation of cold air is not smoothly made in the inside of the ice-maker occurs.

[9] Meanwhile, the cold air flowed in the cold air inlet of the ice-maker through the cold air outlet is discharged upward according to the extension direction characteristic of the cold air duct. Therefore, the cold air flowed in the ice-maker from the cold air inlet is collude with an upper wall of the ice-maker and then circulated into a lower side thereof. Therefore, the upper wall with which the cola air is collided is excessively cooled and a dewing phenomenon occurs at a surface contacting to external air by means of a temperature difference with the outside. Technical Solution

[10] The present invention proposes to solve the above problems. It is an object of the present invention to provide a refrigerator so as to prevent an infiltration phenomenon of foreign materials to a cold air outlet formed in a side wall of a cooling chamber when the cooling chamber door is opened and a cold air inlet formed in an ice-maker.

[11] Also, it is an object of the present invention to provide a refrigerator capable of increasing an ice-making effect by allowing a user to control a discharge direction of cold air absorbed in the cold air inlet.

[12] Also, it is an object of the present invention to provide a refrigerator capable of blocking an occurrence of dewing phenomenon at an outer side wall of an ice-maker with which the cold air absorbed in a cold air inlet is collided.

[13] In order to accomplish the objects as above, there is provided a refrigerator according to an embodiment of the present invention comprising: a main body having a freezing chamber and a cooling chamber formed therein; a door rotatably mounted to the front surface of the main body to open and close the cooling chamber; an evaporator provided in one side of the main body; an ice-making chamber mounted to the rear surface of the ice-making chamber and having a cold air passing hole formed in one side thereof; an ice-making assembly provided in the ice-making chamber; a cold air duct formed in the inside of the wall of the main body and connecting a space accomodating the evaporator and the cold air passing hole; and one or more cold air guides mounted to any one side or both sides of the cold air passing hole and an end of the cold air duct, to guide the cold air flow.

[14] There is provided a refrigerator according to another embodiment of the present invention comprising: a main body having a freezing chamber and a cooling chamber provided on an upper side of the freezing chamber; a door rotatably mounted to the front surface of the main body to open and close the cooling chamber; an evaporator provided in the lower side of the main body; an ice-making chamber mounted to the rear surface of the door and having a cold air passing hole formed in one side thereof; a cold air duct extended along the side wall of the main body from a space receiving the evaporator and communicating with the cooling chamber connected at the end thereof; and a cold air guide detachably coupled with the cold air passing hole, wherein the cold air passing hole and the end of the cold air duct are connected in a state where the door comprising the ice-making chamber is closed.

[15] There is provided a refrigerator according to another embodiment of the present invention comprising: a main body having a freezing chamber and a cooling chamber provided on an upper side of the freezing chamber; a door rotatably mounted to the front surface of the main body to open and close the cooling chamber; an evaporator provided in one side of the main body; a ice-making chamber mounted to the rear surface of the door and having a cold air passing hole formed in one side thereof; a cold air duct extended along the side wall of the main body to supply the cold air generated from the evaporator to the ice-making chamber and connected with the cold air passing hole in a state where the door mounted with the ice-making chamber is closed; an ice-making assembly provided in the ice-making chamber; and a dewing prevention member blocking the cold air discharged from the cold air passing hole from being directly collided with the side wall of the ice-making chamber.

[16] There is provided a refrigerator according to another embodiment of the present invention comprising: a main body having a storage space for storing foods therein; at least one storage container received in a storage space and receiving foods; an evaporator provided in any one side of the main body for heat-exchange between the refrigerant and the cold air circulating the storage space; a door selectively opening and closing the storage space; an ice-making chamber provided in the rear surface of the door and having a cold air passing hole on one surface thereof; a dewing prevention plate coupled in a spaced state from the inner wall of the ice-making chamber, the dewing preventing plate being provided in a path of the cold air discharged from the cold air passing hole to block dew generation on an outer surface of the ice-making chamber; an ice-making chamber provided in the ice-making chamber; an ice storage container storing ice made from the ice-maker; and a transferring part dispensing the ice stored in the ice storage container. [17] There is provided a refrigerator according to another embodiment of the present invention comprising:a main body having a storage space for storing foods therein; at least one storage container accomodated in a storage space and receiving foods; an evaporator provided in any one side of the main body and heat-exchange cold air circulating the storage space and refrigerant; a door selectively opening and closing the storage space; an ice-making chamber provided to a rear surface of the door and having a cold air passing hole on one surface thereof; a cold air guide mounted to the cold air passing hole and blocking a portion of the cold air passing hole to block the inside of the ice-making chamber from being completely exposed or to reduce the in- filitrating phenomenon of foreign materials through the cold air passing hole; an ice- making chamber provided in the ice-making chamber;an ice storage container storing ice made from the ice-making chamber; and a transferring part dispensing the ice stored in the ice storage container.

Advantageous Effects

[18] With a refrigerator according to an embodiment of the present invention constituted as above, a cold air inlet formed in an ice-maker is partially covered so that the inside of the ice-maker is not exposed. [19] Also, the infiltration of foreign materials inside an ice-maker by a cover mounted to an cold air inlet is blocked. Furthermore, a problem of an interruption of a cold air flow due to foreign materials is solved. [20] Also, a direction of a cold air louver of a cover mounted to an cold air inlet can be controlled to guide the cold air to a user desired position, making it possible to increase an ice-making effect of a ice-making chamber. [21] Also, a cold air to an inside of an ice-maker is first collided with a dewing preventiong member so that a dewing phenomenon does not occur at the upper wall surface of the ice-maker. In other words, since the temperature difference of the inner side and outer side of the upper wall surface is not large, the dewing phenomenon does not occur at the upper wall surface thereof.

Brief Description of the Drawings [22] FIG. 1 is a front view showing a refrigerator according to an embodiment of the present invention;

[23] FIG. 2 is a perspective view showing an inner constitution of the refrigerator;

[24] FIG. 3 is a partial perspective view showing an inner structure of an ice-making chamber according to an embodiment of the present invention:

[25] FIG. 4 is an exploded perspective view of the ice-making chamber.

[26] FIG. 5 is an exploded perspective view showing the shape and mount structre of a cold air guide according to an embodiment of the present invention; and

[27] FIG. 6 is a cross-sectional view taken along line I-I' of FIG.5.

Mode for the Invention

[28] Hereinafter, preferred embodiments of the present ivnention will be described with reference to the accompanying drawings. Also, a bottom freezer type refrigerator will be described as an example for explaining the embodiments of the present invention.

[29] Figure 1 is a front vies showing a refrigerator according to an embodiment of the present invention and figure 2 is a perspective view showing an inner constitution of the refrigerator;

[30] Referring to figures 1 and 2, a bottom freezer type refrigerator 40 according to the embodiment of the present invention comprises: a main body 42 having a freezing chamber 41 and a cooling chamber 43 formed therein; a cooling chamber door 45 rotatably mounted to the front surface of the main body 42 to open and close the cooling chamber 41; a freezing chamber door 51 drawn in and out forward and backward to selectively open and close the freezing chamber 43; an ice-making chamber 60 mounted to the rear surface of the ice-making chamber door 45; and a freezing chamber drawer 53 mounted to the rear surface of the freezing chamber door 51.

[31] In detail, the cooling chamber 41 is positioned at the upper side of the cold chmaber

43 and the cooling chamber door 45 is provided in both side surfaces of the front surface of the main body 42, respectively. And, an evaporator 55 is mounted to the rear surface of the freezing chamber 43 to generate cold air to be heat-exchanged with refrigerant. And, the side portion of the main body 42 is provided with a cold air duct 56 supplying the cold air generated from the evaporator 55 to the ice-making chamber 60 and a return duct 57 returning the cold air circulating in the ice-making chamber 60 to the evaporator 55. And, a cold air supplying fan (not shown) for supplying the cold air is provided near the evaporator. And, the cold air supplying duct 56 and the return duct 57 passes through the inside of an insulating layer forming the main body 42. Accordingly, the heat-exchange between the external air and the cold air passing through the ducts 56 and 57 is exchanged. And, the end of the cold air supplying duct 56 is formed with an cold air outlet 58 and the end of the return duct 57 is formed with a cold air inlet 59 in which the cold air discharged from the ice-making chamber 60 flows.

[32] Meanwhile, any one side front surface of the cooling chamber door 45 is provided with a dispenser 47 dispensing purified water and water and a controller 49 having a display and control buttons displaying the temperature inside the cooling chamber 41 and the freezing chamber 43 and the operating state of the referigerator. And, the dispenser 47 is formed in the cooling chamber door 45 to which the ice-making chamber is mounted, making it possible to maximally shorten an ice dispensing path. And, the ice-making chamber 60 is positioned at the cooling chamber door 45, making it possible to allow a user to conveniently take out ice without bending his body for dispensing the ice.

[33] Also, the ice-making chamber 60 comprises: a housing projected on the cooling chamber door 45 to form a cold air chamber 612; and an ice-making chamber cover 62 rotatably mounted to the housing to selectiely block the cold air chamber 612. And, the side surface of the housing 61 is formed with a cold air passing hole 70. In detail, the cold air passing hole 70 comprieses a cold air inlet 71 connected to the cold air outlet 58 formed in the cold air supplying duct 56 and a cold air outlet 73 connected to the cold air inlet 59 formed in the return duct 57. The cold air inlet 71 and the cold air outle 73 are formed in a surface contacting the side surface wall of the cooling chamber 41 when the cooling chamber door 45 is closed. Accordingly, in a state where the cooling chamber door 45 is closed, the cold air duct 56 and the return duct 57 are connected to the ice-making chamber 60. And, at least any one of the cold air inlet 71 and the cold air outlet 57 is detachably mounted with the cold air guide 90. The cold air guide 70 performs a function of filtering foreign materials included in the cold air flowed in the ice-making chamber 612, a funding of blocking the inside of the ice- making chamber 612 when the cooling chamber door 45 is opened, and a function of guiding a discharge direction of the cold air passing throught the cold air inlet 71 or the cold air outlet 73. In other words, it guides the cold air flowed in through the cold air inlet 71 to be jetted toward the ceiling of the ice-making chamber 162 or guides the cold air discharged through the cold air outlet 73 to be outlet in parallel with an extension direction of the return duct 87. And, the cold air guide 90 may be of course mounted to the cold air outlet 58 and the cold air inlet 59 formed in the wall surface of the cooling chamber 41. The shape and mount structure of the cold air guide 90 will be described below with reference to the following figures.

[34] Meanwhile, the housing 61 is a portion of a door liner forming the rear surface of the cooling chamber door 45 or can be provided as a separate case.

[35] The concrete inner constitution of the ice-making chamber60 will be described below with reference to the following figures.

[36] Figure 3 is a partial perspective view showing an inner structure of an ice-making chamber according to an embodiment of the present invention and Figure 4 is an exploded perspective view of the ice-making chamber.

[37] Referring to figures 3 and 4, the ice-making chamber 60 according to an embodiment of the present invention is formed of the housing 61 and the ice-making door 62 as described above.

[38] In detail, the inside of the housing 61 is formed with the cold air chamber 612 in which the cold air for making ice is circulated. And, the inside of the housing 61 is mounted with an ice-making assembly 80. The ice-making assembly 80 comprises an ice-maker 83 making the ice and an ice bank 85 storing the made ice.

[39] Also, the bottom of the housing 61 is formed with a dispensing hole 611 for dispensing the ice stored in the ice bank 85. And, the rear suface wall of the housing 61 is vertically mounted with a support plate 81 for supporting the ice-making assembly 80. And, the lower end of the support plate 81 is formed with a seating part 811 that is horizontally bent. The seating part 811 is fixed to the bottom surface of the cold air chamber 612 by means of a coupling member such as a screw. In other words, the support plate 81 is fixed to the cold air chamber 612 by means of the seating part 811. one surface of the seating part 811 is formed with a through hole 812 corresponding to a position of the dispensing hole 611.

[40] Meanwhile, the upper portion of the support plate 81 is mounted with the ice-maker

83 and the ice-maker 83 performs a function of manufacturing the ice using water supplied from the external. The lower portion of the support plate 81 is mounted with the ice bank 85 and the ice bank 85 performs a function of temporarily storing the ice made by means of the ice-maker 83 and then dispensing it to the outside. The ice- maker 83 and the ice bank 85 are mounted to the support plate 81 so that they can be constituted by one module.

[41] In detail, the ice bank 85 comprises a storage container 851 storing the ice made by means of the ice maker 83 and a transferring part 852 dispensing the ice stored in the storage container 851 to the dispensing hole 611. The transferring part 852 is provided in the storage container 851 and may comprise an auger transferring the stored ice to the dispensing hole 611 and a pulverizer pluverizing the ice. And, the front surface of the storage container 851 is provided with a storage cover 853. The storage cover 853 can be selectively opened in the storage container 851.

[42] Meanwhile, the ceiling portion of the cold air chamber 612, in detail, the inner side upper of the housing 61 is provided with a dewing prevention part 100. The dewing prevention part 100 is provided to prevent dewing from being generated on the upper surface of the outside of the ice-making chamber 60. Therefore, the dewing prevention part 100 may be provided in a position where the cold air inlet through the cold air inlet 71 formed in the side surface of the housing 61 flows in the cold air chamber 612 and is first collided therewith.

[43] In detail, the dewing prevention part 110 comprieses a dewing prevention plate 100 formed in a plate shape and a connection part 103 extended in a predetermined length on the upper surface of the dewing prevention plate 101. The end of the connection part 103 may be mounted to the upper surface of the inside of the housing 61. Therefore, the dewing prevention plate 101 is mounted to be spaced at a predetermined distance from the ceiling of the cold air chamber 612 by means of the connecting part 103.

[44] The connecting part 103 may be fixed to the celing of the cold air chamber 612 by means of the fixing member such as the screw. Therefore, the cold air inlet through the cold air inlet 71 is directly contacted to the dewing preventing plate 101 and plays a role of an insulation by mean of the cold air in the dewing prevention space formed between the dewing prevention plate 101 and the ceiling of the cold air chamber 612 so that the dewing phenomenon does not occur at the upper surface of the outside of the ice-making chamber 60.

[45] In the state where the ice-making assembly 80 is mounted to the support plate 81 in one module, it is installed at the cold air chamber 612 together with the dewing prevention part 100. In particular, the dewing prevention part 100 is positioned right above the ice-maker 82 so that the cold air colliding with the dewing prevention part 100 may be directly reflected to the ice-maker 83. Then, the time that the ice-maker makes ice can be shortened.

[46] Figure 5 is an exploded perspective view showing the shape and mount structre of a cold air guide according to an embodiment of the present invention and FIG. 6 is a cross-sectional view taken along line I-I' of FIG.5.

[47] Referring to Figures 5 and 6, the cold air guide 90 according to an embodiment of the present invention may be formed in the same shape as the shape of the cold air inlet 71 or the cold air outlet 73.

[48] Hereinafter, the cold air guide 90 mounted to the cold air inlet 71 will be described as an embodiment. The description explained blewo is likewise applied to the cold air guide 90 mounted to the cold air outlet 73.

[49] an inner circumferential surface of the cold air inlet 71 is formed with a seating end

711 for firmly seating the cold air guide 90. And, the seating end 711 is formed with one or more coupling hole 712. The coupling part 99 as will be described below is inserted into to the coupling hole 712. The plurality of coupling holes 712 may be formed in the seating end 711.

[50] The cold air guide 90 comprises a body part 91 formed to be corresponded to the shape of the cold air inlet 71, the coupling part 99 extended to the rear surface edge of the body part 91, and a plurality of guide louvers 95 formed in a predetermined distance in the body part 91.

[51] In detail, the guide louber 95 is inclinedly formed to outlet the cold air discharged from the ice-making chamber 612 through the cold air inlet 71 to the upper side. And, the guide louver 95 of the cold air guide 90 mounted to the cold air outlet 71 may be inclinedly formed to a direction conforming to the circulating direction of the cold air shown by an arrow in FIG. 4. Also, it may be inclinedly formed to a direction conforming to the extension direction of the return duct 57. The inclined direction of the guide louver 95 may be properly determined by considering the extension direction of the return duct 57 and the circulation of the cold air. And, the plurality of guide louvers 95 are formed in a state where they are spaced at a predetermined distance. In other words, slits 97 for discharging the cold air are formed between the guide louvers 95.

[52] Also, the coupling part 99 is inserted and coupled into and to the coupling hole 712.

In detail, the coupling part may be provided in a hook form. In other words, the coupling part is safely inserted and fixed in the coupling hole 712, making it possible to prevent a phenomenon that the cold air guide 90 is spontaneously decoupled by means of the pressure of the outlet cold air.

[53] Mean while, the structure that the ice-making chamber comprising the cold air guide and the dewing prevention part are mounted to the cooling chamber door of the bottom freezer type refrigerator is not limited. For example, the cooling chamber may be applied to the top mount type refrigerator or the side by side type refrigerator and may be of course applied to the cooling chamber door as well as the freezing chamber door.

[54]

[55]

Claims

[ 1 ] A refrigerator comprising: a main body having a freezing chamber and a cooling chamber formed therein; a door rotatably mounted to the front surface of the main body to open and close the cooling chamber; an evaporator provided in one side of the main body; an ice-making chamber mounted to the rear surface of the ice-making chamber and having a cold air passing hole formed in one side thereof; an ice-making assembly provided in the ice-making chamber; a cold air duct formed in the inside of the wall of the main body and connecting a space accomodating the evaporator and the cold air passing hole; and one or more cold air guides mounted to any one side or both sides of the cold air passing hole and an end of the cold air duct, to guide the cold air flow. [2] The refrigerator according to claim 1, wherein the cold air duct comprises: a cold air supplying duct to supply the cold air cooled in the evaporator to the ice-making chamber; and a return duct to supply the cold air in the ice-making chamber to the evaporator, and the cold air passing hole is provided at the ends of the cold air supplying duct and the return duct, respectively. [3] The refrigerator according to claim 1, wherein the cold air guide comprises: a body part formed to be the same as the shape of the cold air passing hole or the end of the cold air duct; a coupling part extended to the rear surface of the body part to be coupled to the end of the end of the cold air duct or the cold air passing hole; and guide louvers disposed at the body part with a predetermined distance . [4] The refrigerator according to claim 3, wherein the guide louvers are inclinedly formed in a predetermined angle. [5] The refrigerator according to claim 3, wherein slits for discharging the cold air are formed between the guide louvers. [6] The refrigerator according to claim 3, wherein the coupling part compries a hook extended from the body part. [7] The refrigerator according to claim 3, wherein an inner circumferential surface of the end of the cold air duct is formed with a seating surface for firmly seating the cold air guide and a coupling groove into which the coupling part is inserted. [8] The refrigerator according to claim 1, further comprising a dewing prevention plate mounted to ane upper side surface of the ice-making chamber. [9] A refrigerator comprising: a main body having a freezing chamber and a cooling chamber provided on an upper side of the freezing chamber; a door rotatably mounted to the front surface of the main body to open and close the cooling chamber; an evaporator provided in the lower side of the main body; an ice-making chamber mounted to the rear surface of the door and having a cold air passing hole formed in one side thereof; a cold air duct extended along the side wall of the main body from a space receiving the evaporator and communicating with the cooling chamber connected at the end thereof; and a cold air guide detachably coupled with the cold air passing hole, wherein the cold air passing hole and the end of the cold air duct are connected in a state where the door comprising the ice-making chamber is closed. [10] The refrigerator according to claim 9, wherein at least a portion of the cold air duct is extended along the wall surface of the cooling chamber. [11] The refrigerator according to claim 9, wherein the cold air duct comprises: a cold air supplying duct to supply the cold air generated in the evaporator to the ice-making chamber; and a return duct to return the cold air circulating in the ice-making chamber to the evaporator. [12] The refrigerator according to claim 11, wherein the cold air passing hole is provided in plurality, and the plurality of cold air passing holes are connected to the end of the cold air supplying duct and the end of the return duct, respectively; the cold air guide is mounted to any one or all of the plurality of cold air passing holes. [13] The refrigerator according to claim 9, further comprsing a dewing prevention plate mounted to the inside of the ice-making chamber and positioned to a place where the cold air discharged to the inside of the ice-making chamber through the cold air passing hole is collided with the wall surface of the ice-making chamber. [14] A refrigerator comprising: a main body having a freezing chamber and a cooling chamber provided on an upper side of the freezing chamber; a door rotatably mounted to the front surface of the main body to open and close the cooling chamber; an evaporator provided in one side of the main body; a ice-making chamber mounted to the rear surface of the door and having a cold air passing hole formed in one side thereof; a cold air duct extended along the side wall of the main body to supply the cold air generated from the evaporator to the ice-making chamber and connected with the cold air passing hole in a state where the door mounted with the ice-making chamber is closed; an ice-making assembly provided in the ice-making chamber; and a dewing prevention member blocking the cold air discharged from the cold air passing hole from being directly collided with the side wall of the ice-making chamber. [15] The refrigerator according to claim 14, wherein the dewing prevention part is mounted to the inner wall of the ice-making chamber with which the cold air discharged from the cold air passing hole is first collided. [16] The refrigerator according to claim 14, wherein the dewing prevention member is mounted to an upper side of the inner wall of the ice-making chamber. [17] The refrigerator according to claim 16, further comprising a cold air guide mounted to the cold air passing hole so as to discharge the cold air passing through the cold air passing hole towards the dewing prevention member. [18] The refrigerator according to claim 14, wherein the dewing prevention member comprises: a dewing prevention plate directly colliding with the cold air; and a connection part coupling the dewing prevention plate to the inner wall of the ice-making chamber in a state where the dewing prevention plate is spaced from the ice-making wall surface. [19] The refrigerator according to claim 18, wherein an insulation space is formed between the dewing prevention plate and the ice-making wall surface. [20] The refrigerator according to claim 18, wherein the ice-making assembly is disposed in a space circulating the cold air reflected by collidison with the dewing prevention member. [21] A refrigerator comprising: a main body having a storage space for storing foods therein; at least one storage container received in a storage space and receiving foods; an evaporator provided in any one side of the main body for heat-exchange between the refrigerant and the cold air circulating the storage space; a door selectively opening and closing the storage space; an ice-making chamber provided in the rear surface of the door and having a cold air passing hole on one surface thereof; a dewing prevention plate coupled in a spaced state from the inner wall of the ice-making chamber, the dewing preventing plate being provided in a path of the cold air discharged from the cold air passing hole to block dew generation on an outer surface of the ice-making chamber; an ice-making chamber provided in the ice-making chamber; an ice storage container storing ice made from the ice-maker; and a transferring part dispensing the ice stored in the ice storage container. [22] The refrigerator according to claim 21, further comprising a cold air duct extended along the wall surface of the main body and connected to the cold air passing hole in a state where the door having the at least ice-making chamber is closed. [23] The refrigerator according to claim 21, wherein the dewing prevention plate is mounted to be intersected at a predetermined angle with the flow direction of the cold air discharged from the cold air passing hole so that the cold air reflected by collision with the dewing prevention plate is circulated in the ice-making chamber. [24] The refrigerator according to claim 21, further comprising a cold air guide mounted to the cold air passing hole and discharging the cold air to the dewing prevention plate. [25] A refrigerator comprising: a main body having a storage space for storing foods therein; at least one storage container accomodated in a storage space and receiving foods; an evaporator provided in any one side of the main body and heat-exchange cold air circulating the storage space and refrigerant; a door selectively opening and closing the storage space; an ice-making chamber provided to a rear surface of the door and having a cold air passing hole on one surface thereof; a cold air guide mounted to the cold air passing hole and blocking a portion of the cold air passing hole to block the inside of the ice-making chamber from being completely exposed or to reduce the infilitrating phenomenon of foreign materials through the cold air passing hole; an ice-making chamber provided in the ice-making chamber; an ice storage container storing ice made from the ice-making chamber; and a transferring part dispensing the ice stored in the ice storage container.