KR100567014B1 - Cool air flow improving structure in the side-by-side type refrigerator - Google Patents

Abstract

The present invention relates to a cold air flow path improving structure of a double door type refrigerator, and to provide a cold air flow path improving structure to increase a heat exchange efficiency of a cooler in a double door type refrigerator and to prevent frost phenomenon occurring at the bottom of the cooler.

 To this end, in the freezer compartment of the refrigerator, a first duct for suctioning the freezer compartment return air directly to the first cooler positioned at the top, and a second duct for suctioning the freezer compartment return air directly to the first cooler located at the upper end; The third duct is connected to the cold air passage part formed at the lower end of the trimmer for dividing the freezing compartment and the refrigerating compartment to directly suck the return air of the refrigerating compartment to the second cooler located at the bottom.

Therefore, according to the present invention, the separation effect of the cooler is increased by improving the duct structure for the return air in the freezer compartment, and there is an effect of preventing the conception by dispersing the return air concentrated at the bottom of the second cooler.

Refrigerator, double door, cooling, cold, subcooling, circulation

Description

Cool air flow improving structure in the side-by-side type refrigerator

1 is a longitudinal sectional view showing a cold air supply structure in a conventional double-door refrigerator.

2 is a cross-sectional view showing a cold air supply structure according to the present invention.

Figure 3a is a view showing a cold air circulation process in a conventional double door refrigerator according to the present invention.

Figure 3b is a view showing a cold air circulation process in the double door refrigerator according to the present invention.

***** Explanation of the main symbols in FIGS. 2 and 3 *****

20: main body, 21: first cooler

22: freezer compartment fan, 23: refrigerator compartment fan

24: cold air flow passage part, 25: cold air connection duct

26: second cooler, 27: refrigerator compartment flap

28: cooler chamber, 29-1: first duct

29-2: second duct, 29-3: third duct

30: first heater part, 31: second heater part

32: refrigerator compartment refrigerator return air, 33: refrigerator compartment refrigerator air

34: 1st duct cold air, 35: 2nd duct cold air

36: freezer cold return air

The present invention relates to a structure for improving a cold air flow path of a double door refrigerator, and more particularly, to a structure for improving a cold air flow path by changing return air ducts of a freezer compartment and a refrigerating compartment to distribute cold air return air.

In general, a two-door refrigerator has a relatively large capacity and is a combination of various functions, and the freezer compartment is provided on the left and right sides of the refrigerator such that the freezer compartment and the refrigerating compartment are vertically perpendicular to each other in the vertical direction, and a freezer compartment having an evaporator mounted on the rear side of the freezer compartment. It is configured to perform the refrigerating function and the freezing function, respectively, by inhaling the air in the refrigerator compartment to the lower side and simultaneously discharging it to the upper side. 1 is a view illustrating a cold air supply structure of the double door refrigerator.

As shown in FIG. 1, the cold air supply structure of the conventional double door refrigerator is formed in parallel to each other and is divided into compartments by the trimming section 6, and the freezing compartment F and the refrigerating compartment R, and the freezing compartment F, respectively. The cooler chamber 1 which is separated and formed so as to form a space separate from the freezing chamber F at the rear side of the freezer compartment F, and the evaporator 2 and the blowing fan 3 are installed, and the cold air generated in the cooler chamber 1 is the refrigerating chamber R Supply duct 4 formed on the upper side of the trimming section 6 so as to be supplied to the trimming section 6, and a passage through which cold air whose temperature rises in the refrigerating chamber R returns to the cooler chamber 1 is returned to the lower side of the cutting section 6; And a damper (8) for adjusting the amount of cold air provided and provided on the refrigerating chamber side of the supply duct (4).

The cold air generated by the evaporator 2 is supplied to the freezing chamber F and the refrigerating chamber R by the blower fan 3, and the cold air that has risen in temperature by heat exchange with the stored foods stored in each chamber is evaporated again. The inside of the refrigerator is cooled while repeating the circulation returned to the side.

In addition, the inside of the refrigerating chamber is provided with a plurality of shelves (not shown) for storing stored foods, etc., a lower vegetable storage box 13 for storing vegetables is generally installed below.

In the case of a double-door refrigerator, the cold air that has risen in temperature in the refrigerating compartment is returned through the cold air intake port 5 formed at an arbitrary position of the side of the refrigerating compartment, so that the positions of the cold air discharge port and the intake port can be freely configured in comparison with the general refrigerator.

However, in spite of these advantages, the existing cold air flow path not only decreases the heat exchange efficiency by concentrating the freezer compartment and the refrigerating compartment return air at the bottom of the cooler, but also causes the phenomenon of condensation on the bottom of the cooler.

 The present invention has been conceived to overcome the disadvantages of the prior art described above, to provide a cold air flow path improving structure to increase the heat exchange efficiency of the cooler in the double-door refrigerator and to prevent the phenomenon that occurs at the bottom of the cooler. I put it.

The present invention provides a cold air flow path for preventing the heat exchange efficiency of the cooler and the frost phenomenon generated in the second cooler by placing a duct to directly suck the cold air returned to the first cooler in the cooler chamber of the freezer compartment to achieve the above-mentioned technical problem. Provide an improvement structure.

To this end, in the freezer of the refrigerator, a first duct for suctioning the freezer compartment return air directly to the first cooler located at the top, and a second duct for suctioning the freezer compartment return air directly to the first cooler located at the top, and the freezer compartment The third duct is connected to the cold air flow passage formed at the lower end of the trimming section for dividing the refrigerating compartment and directly sucks the return air of the refrigerating compartment to the second cooler located at the bottom.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the attached invention.

2 is a cross-sectional view showing a cold air supply structure according to the present invention, showing a structure in which cold air generated in the cooler is circulated.

Referring to the circulation process according to the cold air circulation structure, the cold air generated in the first cooler 21 and the second cooler 26 is circulated by the freezer compartment 22 and the refrigerator compartment fan 23, respectively. By this circulation, the freezing compartment and the refrigerating compartment are cooled.

Of course, the main body 20 includes a compressor (not shown) for compressing the refrigerant at high temperature, a solenoid valve (not shown) for distributing and circulating the refrigerant, and the like. However, since these configurations are well-known techniques, a detailed description is not necessary. Therefore, the description thereof will be omitted here.

Accordingly, in order to move the cold air generated by the first cooler 21 and the second cooler 26 to the refrigerating compartment, a cold air connection duct 25 is formed in the freezing compartment and the refrigerating compartment. Through this connection duct 25, the cold air of the freezing compartment can be introduced into the refrigerating compartment.

Of course, the cold air connection duct 25 has a refrigerator compartment flap (27) to prevent the refrigeration of the freezer compartment back flow. That is, the refrigerator compartment flap 27 is opened by the wind speed of the cold air when the cold air is introduced into the cold air connection duct 25, and when the cold air of the freezer is not introduced into the cold room, there is no cold air wind speed. It becomes a state.

The cold air circulated by the freezing compartment fan 22 and the refrigerating compartment fan 23 in the freezing compartment and the refrigerating compartment cools heat in the refrigerator, thereby increasing the temperature. Therefore, it is necessary to send it to the cooler to cool again. For this purpose, a cold air passage passage part 24 is formed at the bottom of the body 20 between the refrigerating chamber and the freezing chamber. That is, it is located at the bottom of the wall that divides the freezer compartment and the refrigerating compartment.

The cold air, which has risen in temperature due to the cooling circulation in the refrigerating chamber, is introduced into the freezing chamber by the flow passage part 24, and is recooled by the second cooler 26, and the cooled cold air is again passed through the cold air connection duct 25. It will enter the fridge.

Of course, the first cooler 21 cools the cold air (return air) circulated through the freezer compartment by the freezer compartment fan 22 of the freezer compartment. To this end, the first duct 29-1 and the second duct 29-2 are configured.

That is, the first duct 29-1 is formed with a suction port at the bottom of the freezer compartment to directly suck the return air, and the duct 29-1 is disposed between the first cooler 21 and the second cooler 26. It leads to the empty space. Of course, the outlet of the first duct (29-1) is a furnace in front of the first cooler (21).

The second duct 29-2 is also formed similarly to the first duct 29-1. Therefore, most of the return air of the freezer compartment is sucked into the first duct 29-1 and the second duct 29-2 and flows directly into the first cooler 21.

In contrast, only a small amount of the second cooler 26 that is not sucked into the first duct 29-1 and the second duct 29-2 is introduced into the second cooler 26. In addition, a third duct (29-3) is connected to the second cooler (26), so that return air coming through the flow passage (24) of the refrigerating chamber is directly introduced into the second cooler (26). Accordingly, unlike the conventional method, the second cooler 26 processes only a small amount of return air and a return air of the refrigerating compartment in the freezer compartment.

Figure 3b is a diagram that facilitates understanding the return air flow of the present invention described above. Prior to this, a diagram of a prior art cold air flow is shown in Figure 3a. First, referring to FIG. 3A, the return air circulating through the freezing compartment and the refrigerating compartment first flows into the second cooler 26. That is, the return air flowing into the second cooler 26 also includes a cold return air 32 flowing into the freezing chamber from the refrigerating chamber through the cold air passage passage 24. The return air flows into the second cooler 26 after passing through the second heater part 31 installed below the second cooler 26 and cooled by the freezing cycle.

Part of the cooled cold air flows into the refrigerating chamber cold air 33 to flow into the refrigerating chamber, and the remaining cold air flows into the first cooler 21 through the first heater unit 30 installed under the first cooler 21. It becomes a complete cold air. The cold air is circulated again by the freezing fan 22 and the refrigerating fan 23.

Unlike the conventional method, the return air flow of the present invention is that most of the return air circulating through the freezing chamber is directly passed through the first duct 29-1 and the second duct 29-2 without passing through the second cooler. The first heater unit 30 flows into the first cooler 21. That is, the first duct cold air 34 and the second duct cold air 35 indicated by the thick arrows flow into the first cooler 21. On the contrary, only a small amount of the freezer return air return air 36 and the refrigerating silit air 32 of the refrigerating compartment flows into the second cooler 26 to be cooled again, and then flows into the refrigerating compartment with the refrigerating compartment cold air 33. That is, the refrigerating silit air 32 flows directly into the second cooler 26 through the third duct 29-3.

 Therefore, it is possible not only to eliminate the phenomenon of condensation of the lower part of the cooler, which has been a problem in the past, but also to increase the heat exchange efficiency of the cooler.

As mentioned above, the present invention has been described in detail with reference to the accompanying embodiments and drawings, but the present invention is not limited to the specific embodiments, and those skilled in the art or acquiring general knowledge are provided with the contents of the present invention. It should be understood that numerous variations and modifications can be made without departing from the scope of the invention. Therefore, the protection scope of the present invention will be preferred based on the appended claims.

According to the present invention, by improving the duct structure for the return air in the freezer compartment, the separation effect of the cooler is increased, and there is an effect of preventing the conception by dispersing the return air concentrated at the bottom of the second cooler.

Claims (3)

A first duct 29-1 for suctioning the freezer compartment return air directly to the first cooler 21 positioned at an upper end thereof; A second duct (29-2) for suctioning the freezer compartment return air directly to the first cooler (21) located at the top; A third duct (29-3) is connected to the cold air passage passage (24) formed at the lower end of the trimming section for dividing the freezing compartment and the refrigerating compartment to directly suck the return air of the refrigerating compartment to the second cooler (26) located at the bottom. Cold air flow path improvement structure of the double-door refrigerator, characterized in that formed in the freezer. The method of claim 1, Most of the freezer silit air is introduced into the first cooler, and the remaining amount of the cold air flow path improvement structure of the two-door refrigerator, characterized in that the second cooler (26). The method of claim 1, The cold air cooled in the second cooler (26) is an improvement structure of the cold air flow path of the double door type refrigerator, characterized in that flow into the refrigerating chamber through the cold air connection duct (25).

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