KR19990053008A - Duct assembly structure of the refrigerator - Google Patents

Abstract

The present invention discloses an improved duct assembly of a refrigerator.

The present invention is a structure for installing a duct for guiding cold air cooled by a cooler into a refrigerating compartment of a cabinet on the inside of a refrigerating compartment, wherein a cover bead having a cold air hole is formed to protrude toward the refrigerating compartment on the back surface of the internal image forming the refrigerating compartment. After inserting the cold air transfer duct into the mounting groove of the inner back of the inner wound formed by the cover bead, the urethane foaming material is filled between the inner and outer wound of the cabinet to have the duct installed on the inner of the refrigerating chamber. Accordingly, the present invention can be easily installed in the interior of the refrigerating chamber without a separate cover as in the prior art, as well as a high-gloss and beautiful appearance, and actively cope with changes in the molding dimensions caused by the urethane foaming material. Can be effectively prevented.

Description

Duct assembly structure of the refrigerator

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator, and more particularly, to a structure for assembling a duct in a cabinet to guide cold air cooled by an evaporator to a refrigerating compartment.

As is well known, a refrigerator used to freeze and / or refrigerate food using a cooling cycle is a liquid which liquefies a refrigerant gas compressed at high pressure in a compressor by heat exchange with air in a condenser. Afterwards, it is a home appliance that performs a cooling action by the heat of evaporation of a refrigerant absorbed by evaporation by heat exchange with high internal air in a cooler through a capillary tube.

Such a refrigerator may, for example, install a cooler 7 in the rear of a freezer compartment 2 of a cabinet 1 as shown in FIGS. 1 and 2 to cool air cooled by the fan motor 8 to the fan motor 8. The cooling is effected by circulating into the cavity. That is, the cold air to the freezer compartment 2 is discharged directly to the freezer compartment 2 through the louver (louver) (9) to perform a freezing action, the cold air to the refrigerator compartment (3) is a cold air formed by the louver 9 and the insulator ( 10 through the duct (11) installed in the refrigerating chamber (3) is discharged to each part of the refrigerating chamber (3) to perform the refrigerating action. Meanwhile, the recovery cooler of the freezer compartment 2 is introduced into the cooler 7 through the lower end of the louver 9 and the recovery cooler of the refrigerating compartment 3 through the left and right sides of the duct 11, respectively.

The remaining reference numerals 13a and 13b are doors for opening and closing the freezing compartment 2 and the refrigerating compartment 2, respectively.

Figure 2 schematically shows a conventional duct assembly structure in such a refrigerator. This forms a mounting groove 5a which is pulled outwardly on the rear surface of the inner box 5 of the refrigerating chamber 3, and the duct 11 composed of styropole (EPS) is installed in the mounting groove 5a. After insertion from the c) side, a cover 12 made of an alkyl-benzene-sulfonate (ABS) resin is assembled to the inner box 5 so as to surround the duct 11 in consideration of the appearance.

However, such a conventional assembly structure is complicated because the duct 11 is located on the front surface of the inner box 5, that is, the refrigerating chamber 3 side to be provided with a separate cover 12 to prevent the exposure. Not only was the assembly work complicated, there was a problem of rising manufacturing costs. In addition, since the duct 11 composed of a styropole is divided into a plurality of parts, careful attention is required when assembling the cover 12 to the inner box 5, and accordingly, a hook of the cover 12 is not shown. There was also a problem that a defect that is broken) occurs frequently. In addition, the inner duct (5) is assembled with the outer (4), and the urethane (urethane) foaming material (6) which functions as a heat insulator between the two filled in the state, the duct (11) and the cover (12) in the inner ( 5) because the assembly of the duct (11) due to the change in the molding dimension of the urethane foam of the inner wound (5) is very difficult, in severe cases there was a lot of fear of assembly failure.

SUMMARY OF THE INVENTION An object of the present invention is to provide a cold air transport duct easily and stably in the refrigerating compartment without having a separate cover in view of the conventional problems as described above, as well as to provide a beautiful appearance. It is to provide a duct assembly structure.

It is another object of the present invention to provide a duct assembly structure of a refrigerator that can accurately install a duct in an inner box regardless of a change in the molding dimensions of the inner box caused by filling a urethane foam between the inner and outer boxes of the cabinet.

In order to achieve the above objects, the present invention provides a cover bead having a cold air hole in the back surface of an inner image forming the refrigerating chamber, which is a structure for installing a duct inducing cold air cooled by the cooler to the refrigerating chamber of the cabinet. (cover bead) protruding toward the refrigerating compartment, inserting the cold air transfer duct into the mounting groove of the inner wound rear formed by the cover bead, and filling the duct to the inner compartment of the refrigerating compartment by filling the urethane foam between the inner and outer wound of the cabinet. It is characterized by installing.

Accordingly, the present invention can be easily installed in the interior of the refrigerating chamber without a separate cover as in the prior art, as well as a high-gloss and beautiful appearance, and actively cope with changes in the molding dimensions caused by the urethane foaming material. Since it can effectively prevent the production and quality of the refrigerator and the cost reduction will have a great effect.

1 is a front view of a cabinet schematically showing an example of a typical refrigerator;

2 is a cross-sectional view taken along the line II-II of FIG.

Figure 3 is an exploded perspective view showing a conventional duct assembly structure,

Figure 4 is an exploded perspective view showing the duct assembly structure according to the present invention,

5 is a perspective view schematically showing the configuration of the present invention duct.

<Explanation of symbols for main parts of the drawings>

1: cabinet 3: cold storage room

4: (cabinet) trauma (outer box) 6: urethane foaming material (of cabinet)

7: evaporator 8: fan motor

14: Inner box 14a: Mounting groove

15: cover bead

15a: Cold air hole (in cover bead) 16: Duct (for cold air transport)

17: Front cover (of duct) 17a: Cold air hole (of front cover)

17b: channel (front cover) 18: rear cover (duct)

19: (duct) connecting piece

Such specific features and other advantages of the present invention will become more apparent from the following description of the preferred embodiments with reference to the accompanying drawings.

1 and 2, the illustrated configuration is, for example, an intercooled refrigerator, in which a low pressure liquid refrigerant flowing therein heat-exchanges with the air in the cavity to evaporate to cool the food stored therein. To the rear of the freezer compartment (2) of the cabinet (1), the cold air cooled by the cooler (7) to the upper side of the cooler (7) to the cavity by the fan motor (8) located in the rear of the freezer compartment (2) By circulating, cooling is performed.

That is, the cold air to the freezer compartment 2 is discharged directly to the freezer compartment 2 through the louver 9 installed at the rear thereof, and the cold air to the freezer compartment 3 is a cabinet formed by the louver 9 and the insulator ( By passing through the cold air (10) of 1) through the duct 16 provided on the rear surface of the refrigerating chamber (3) is discharged to each part of the refrigerating chamber (3) to perform the refrigerating action.

On the other hand, the recovered cold that has been heated by heat exchange with food while circulating through the freezer compartment 2 is recovered to the cooler 7 through the lower end of the louver 9, and is heated by heat exchange with food while circulating the refrigerating compartment 3. The recovered coolant flows into the cooler 7 through the left and right sides of the duct 16.

On the other hand, the duct 16 is generally composed of a styropole material so that a cold air flow path is formed therein. For the aesthetics of the refrigerating compartment 3 and the quality of the product, the duct 16 is properly blocked so as not to be exposed to the refrigerating compartment 3. You must do it.

To this end, as shown in FIG. 4, a cover bead 15 for preventing exposure of the interior chamber 3 of the duct 16 is provided on the rear surface of the inner chamber 14 of the refrigerator compartment 3 according to the feature of the present invention. It is formed to protrude toward 3), thereby forming a mounting groove 14a into which the duct 16 is inserted by the protrusion of the cover bead 15 on the rear surface of the inner box 14.

In the cover bead 15, the cold air is discharged into the refrigerating chamber 3 and the cold air holes 15a through which the recovered cold air is sucked are appropriately arranged. The cover bead 15 is preferably an internal wound 14 Are formed together during molding.

Meanwhile, as shown in FIG. 5, the duct 16 includes a front cover 17 having a channel 17b which functions as a cold air flow path by a flange that is bent in parallel to both ends. A rear cover which is integrally connected to one end of the front cover 17 by a flexible connecting piece 19 and covers an opening of the channel 17b, thereby forming a cold air flow path. 18). In the front cover 17 of the duct 16, the cold air holes 17a communicating with the cold air holes 15a formed in the cover bead 15 of the inner box 14 are appropriately formed.

In the present invention as described above, the inner wound 14 of the refrigerating compartment 3 is molded into a predetermined shape, the duct 16 is inserted into the mounting groove 14a on the rear surface of the cover bead 15, and then assembled with the outer wound 4. Then, by filling the urethane foaming material (6) to function as a heat insulating material between the two by the foaming force to fix the duct 16 in close contact with the mounting groove (14a) of the inner back (14).

Accordingly, according to the present invention, the cover bead 15 protruding from the inner surface 14 of the refrigerating chamber 3 is located at the rear of the inner wound 14 of the refrigerating compartment 3, that is, the back surface of the inner wound 14. Since the exposure to the refrigerating chamber (3) is reliably blocked as well as to form a beautiful appearance, it is necessary to provide a separate ABS material cover (12 of FIG. 3) to prevent the exposure of the duct 16 as in the prior art Not at all.

In addition, the hook 12 of the cover 12 is broken when the duct 16 is installed, since the urethane foam material 6 is filled between the inner wound 14 and the outer wound 4 of the cabinet 1. Such as assembly failure is fundamentally prevented.

In addition, since the urethane foam member 6 is filled between the inner wound 14 and the outer wound 4 of the cabinet 1 while the duct 16 is inserted into the mounting groove 14a of the inner wound 14, the urethane foaming material. Even if the shaping dimension of the inner wound 14 changes due to the foaming of (6), the duct 16 can be installed stably and accurately at the corresponding position of the inner wound 14.

Meanwhile, the present invention has a configuration in which the front and rear covers 17 and 18 of the duct 16 are integrally connected to each other, so that the assembly or the duct 16 which may be caused by the scattering of the divided parts as in the prior art. The damage of is also suppressed as much as possible.

In addition, when changing the design of the duct 16 at the time of developing a new product, only the design of the duct 16 itself needs to be changed, so that a secondary effect of simplifying the development of the new product can be obtained.

The remaining reference numerals 13a and 13b are hinged to the front surface of the cabinet 1, respectively, and are doors for opening and closing the freezing compartment 2 and the refrigerating compartment 3, respectively.

As described above, according to the present invention, the duct can be easily and stably installed on the inside of the refrigerating compartment without having to provide an expensive separate cover as in the related art, and the appearance can be beautifully formed to maintain high gloss. In addition, it is also possible to effectively cope with the change in molding dimensions caused by the urethane foam, thereby effectively preventing assembly failure of the duct. Therefore, the present invention has a very excellent effect that can reduce the manufacturing cost while greatly improving the production and quality of the refrigerator.

Claims (2)

A structure for installing a duct on the inside of the refrigerating compartment for guiding cold air cooled by a cooler to the refrigerating compartment of the cabinet The inner wound 14 formed by the cover bead 15 is formed by protruding a cover bead 15 having a cold air hole in the rear surface of the inner wound 14 forming the refrigerating chamber 3 toward the refrigerating chamber 3. The cold air transfer duct 16 is inserted into the mounting groove 14a at the rear side, and the duct 16 is filled by filling the urethane foam material 6 between the inner box 14 and the outer box 4 of the cabinet 1. ) Is installed in the inner box (14) of the refrigerating chamber (3). 2. The front cover (17) according to claim 1, wherein the duct (16) has a channel (17b) to function as a cold air flow path, and one end thereof is connected by a flexible connecting piece (19) to a corresponding end of the front cover (17). Duct assembly structure of the refrigerator, characterized in that consisting of the back cover (18) which is integrally connected and forms a cold air flow path by rotating the connecting piece (19) to the shaft to cover the opening of the channel (17b).