KR100362612B1 - Refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator having a main body having at least one cooling chamber and an evaporator installed on a rear wall of the cooling chamber to generate cold air, the refrigerator being formed on the rear wall of the cooling chamber to accommodate the evaporator. An evaporator accommodating part in which a cold air suction port is formed at one side; Discharge ducts formed on both sides of the evaporator accommodating portion with the cold air suction ports interposed therebetween and having a cold air discharge port communicating with the cooling chamber; A cold air distribution unit for guiding the cold air from the evaporator accommodating unit to the discharge ducts; And a blower fan installed in the cold air distribution unit to blow cold air into the respective discharge ducts. As a result, the refrigerator volume ratio is improved, so that the refrigerator internal space that can be utilized by the user can be more widely secured.

Description

Refrigerator {REFRIGERATOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator, and more particularly, to a refrigerator in which a refrigerator duct structure is improved to improve a refrigerator volume ratio.

6 is a side cross-sectional view of a conventional refrigerator.

As shown in the figure, the refrigerator includes a main body 101 in which the cooling chamber 120 is formed, and a cooling chamber door 105 installed at the front of the main body 101 to rotate the front opening of the cooling chamber 120. Has

The cooling chamber 120 is partitioned by a plurality of shelves 121 for storing and storing a stored product. The cooling chamber duct member 130 is provided in the rear region of the cooling chamber 120 so that a predetermined space is formed from the rear wall surface 129 of the cooling chamber 120 in the vertical direction. The cooling chamber duct member 130 has a predetermined space between the duct rear plate 133 and the duct rear plate 133 which are arranged with a predetermined distance from the rear wall surface 129 of the cooling chamber 120 to the front side. The duct face plate 131 has a plurality of cold air discharge ports 137 formed through the plate surface. The duct front plate 131 and the duct back plate 133 of the cooling chamber duct member 130 form a cold air passage 135 for guiding the cold air from the evaporator 123 to the cooling chamber 120. An evaporator 123 is provided in the bottom lower region of the duct back plate 133 to generate cold air by evaporating the refrigerant condensed in the condenser (not shown). The blowing fan 125 is provided at the upper portion of the evaporator 123 to supply the cold air generated by the evaporator 123 to the cooling chamber 120. In the lower region of the evaporator 123, a freezing chamber cold air return duct 127 is formed to guide the cold air circulated through the cooling chamber 120 to the evaporator 123 using the duct rear plate 133 as an interface.

However, the evaporator 123 is installed in front of the rear wall surface 129 and the duct rear plate 133 is provided in front of the evaporator 123, and is formed at a predetermined distance from the duct rear plate 133. Since the duct front plate 131 forms the cold air flow passage 135 together with the duct rear plate 133, the cold air flow passage 135 is formed at a long distance from the rear wall surface 129, thereby decreasing the volume ratio in the refrigerator. Therefore, there is a problem that the internal space of the refrigerator that the user can use becomes narrow.

Accordingly, an object of the present invention is to provide a refrigerator in which the refrigerator duct structure is improved to improve the refrigerator volume ratio.

1 is an exploded perspective view of a refrigerator according to the present invention;

2 is an enlarged perspective view of a portion A of FIG. 1;

3 is a rear perspective view of FIG. 2;

4 is a rear cross-sectional view according to IV-IV of FIG.

5 is a side cross-sectional view taken along the line VV of FIG. 3;

6 is a side cross-sectional view of a conventional refrigerator.

* Explanation of symbols for the main parts of the drawings

1 body 10: cooling chamber

23: evaporator 29: rear wall

30: duct member 31: outer wall

32: bulkhead 33: discharge duct

34: cold air outlet 35: evaporator accommodating part

36: cold air intake 37: guide wall

38: cold air distribution 40: cross flow fan

41: side wall 42: motor

43: first curve portion 44: the second curve portion

The object of the present invention is a refrigerator having a main body having at least one cooling chamber formed therein and an evaporator installed on a rear wall surface of the cooling chamber to generate cold air, wherein the evaporator is formed on the rear wall surface of the cooling chamber. It accommodates, and the evaporator accommodating portion formed with a cold air inlet on one side; Discharge ducts formed on both sides of the evaporator accommodating portion with the cold air suction ports interposed therebetween and having a cold air discharge port communicating with the cooling chamber; A cold air distribution unit for guiding the cold air from the evaporator accommodating unit to the discharge ducts; And a blower fan installed in the cold air distribution unit to blow cold air into the discharge ducts.

Here, the cold air distribution portion is formed in the upper region of the evaporator accommodating portion, the cold air suction port is preferably formed in the lower region of the evaporator accommodating portion.

The apparatus may further include a duct member mounted on the rear wall surface of the cooling chamber, and the evaporator accommodating portion is formed by the rear wall surface of the cooling chamber and the duct member.

Here, the duct member includes a partition wall separating the evaporator accommodating portion and the discharge duct from each other, and an outer wall spaced apart from the partition wall to the outside, and the cold air discharge port is formed between the outer wall and the partition wall to the cooling chamber. The discharged cold and the cooling chamber are circulated and the cold air introduced into the evaporator is not mixed.

In addition, if the cold air distribution portion has a guide wall of a partial arc that guides the cold air in the involute curve along the circumferential direction, the cold air from the evaporator accommodating portion can be effectively introduced into the discharge duct.

Here, the guide wall is formed in the duct member in a pair to face each other with the blowing fan therebetween, the side wall bent radially toward the blowing fan in the guide wall adjacent to the evaporator accommodating portion of the guide wall If it is formed, it is possible to prevent cold air blown by the blower fan and directed to the discharge duct to flow into the evaporator accommodating portion, and to effectively guide the cold air from the evaporator accommodating portion to the blower fan.

When the discharge ducts are joined to each other in the lower region of the duct member, the cold air flowing through both discharge ducts may be joined in the lower region of the duct member and discharged together through the cold air outlet.

In addition, if the blower fan is a crossflow fan that blows cold air radially with respect to the axis, it is possible to suck cool air from the evaporator accommodating portion and to blow air efficiently with the discharge duct.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view of a refrigerator according to the present invention, FIG. 2 is an enlarged perspective view of part A of FIG. 1, FIG. 3 is a rear perspective view of FIG. 2, and FIG. 4 is a rear cross-sectional view of FIG. 3. 5 is a side cross-sectional view taken along the line VV of FIG. 3.

As shown in these figures, the refrigerator includes a main body 1 having a pair of cooling chambers 10 partitioned by an intermediate wall 7 and a pair of refrigerators installed in front of the main body 1. It has a cooling chamber door (not shown) which rotates the front opening of the cooling chamber 10, respectively.

The cooling chamber 10 is partitioned by a plurality of shelves (not shown) for storing and storing a stored product. In the rear region of the cooling chamber 10, the evaporator 23 installed on the rear wall surface 29 of the cooling chamber 10 and the rear wall surface of the cooling chamber 10 along the vertical direction are disposed in front of the evaporator 23. 29 is provided with a duct member 30 to form a predetermined separation space.

On the other hand, the duct member 30 is formed along the circumferential direction of the evaporator 23, formed partition wall 32 protruding from the plate surface toward the rear wall surface 29 of the cooling chamber 10, and a predetermined distance from the partition wall 32. An outer wall 31 spaced apart from the outside, and a pair of guide walls 37 extending from the outer wall 31 and the partition wall 32 so as to face each other with the cross flow fan 40 to be described later are formed therebetween. The guide wall 37 is a partial arc shape so as to guide the cold air in the involute curve along the circumferential direction, and a guide wall formed on the upper side of the cross flow fan 40 to be described later among the pair of guide walls 37 ( 37 has first and second curved portions 43 and 44 extending from the outer wall 31 and extending from the partition wall 32 to the guide wall 37 formed below the crossflow fan 40 in the crossflow fan. The side wall 41 bent radially toward 40 is formed.

The separation space formed by the duct member 30 and the rear wall surface 29 of the cooling chamber 10 is formed by the outer wall 31, the partition wall 32, and the guide wall 37 of the duct member 30. (35), the cold air distribution unit (38) disposed above the evaporator accommodation section (35), and the discharge ducts (33) spaced apart from each other with the evaporator accommodation section (35) therebetween.

The discharge ducts 33 are spaced apart from each other on the circumferential sides of the duct member 30 by the rear wall surface 29 of the cooling chamber 10 connected to the outer walls of the duct member 30 and the end portions of the partition walls 31 and 32. . In the discharge duct 33 on both sides of the circumference, a plurality of through-plates of the duct member 30 are formed along the discharge duct 33 to discharge cold air from the evaporator accommodating portion 35 to the cooling chamber 10. The cold air discharge port 34 is formed.

The evaporator accommodating part 35 is spaced apart from the outer wall 31 of the duct member 30 inwardly by a predetermined distance so as to be disposed between both discharge ducts 33 and the partition wall 32 formed along the circumferential direction of the evaporator 23. And the rear wall surface 29 of the cooling chamber 10 connected to the end of the partition wall 32. The evaporator accommodating part 35 includes an evaporator 23 for generating cold air by evaporating the refrigerant condensed in a condenser (not shown), and the cold air circulating the cooling chamber 10 in the lower region of the evaporator accommodating part 35. The cold air inlet 36 is formed to penetrate the plate surface of the duct member 30 so that it can be introduced.

The cold air distribution unit 38 is formed on the evaporator accommodating portion 35 by the guide wall 37 formed on the duct member 30 and the rear wall surface 29 of the cooling chamber 10. The cold air distribution unit 38 accommodates the cross flow fan 40 for blowing the cool air from the evaporator accommodating portion 35 to both discharge ducts 33, and the cold air blown from the cross flow fan 40 in the circumferential direction. Along the guide wall 37 to the two discharge ducts 33 on the involute curve.

Cold air from the evaporator accommodating part 35 is caused by the side wall 41 of the guide wall 37 formed between the cross flow fan 40 and the evaporator accommodating part 35 of the pair of guide walls 37. Cold air blown from the cross flow fan 40 by the first and second curved portions 43 and 44 of the guide wall 37 formed on the cross flow fan 40. And guided to each discharge duct 33.

On the other hand, a motor 42 for driving the cross flow fan 40 behind the cold air distribution unit 38 is provided in a predetermined accommodation space formed in the rear wall surface 29 of the cooling chamber 10.

By such a configuration, the cool air generated in the evaporator 23 is guided from the evaporator accommodating part 35 to the cold air distribution part 38 by the side wall 41 of the guide wall 37, and guided to the cold air distribution part 38. When the cold air is sucked into the crossflow fan 40 and blown in a radial direction with respect to the axial direction, the cold air is guided to each discharge duct 33 by a pair of guide walls 37. At this time, the cold air is bisected by the first and second curved portions 43 and 44 of the guide wall 37 formed in the inlet region of the discharge duct 33 of the pair of guide walls 37, and thus each discharge duct 33 The cold air introduced into the discharge duct 33 is discharged into the cooling chamber 10 through the cold air discharge port 34 formed on the discharge duct 33, and the cold air discharged into the cooling chamber 10 is discharged. After circulating the inside of the refrigerator, the circulation process of returning to the evaporator accommodating part 35 through the cold air inlet 36 is repeated.

In this way, the evaporator accommodating part 35 in which the evaporator 23 is accommodated, and the discharge duct guided to the cold air discharging port 34 on both sides of the cold air distributing part 38 and the evaporator accommodating part 35 on the upper part of the evaporator accommodating part 35. By providing 33, the storage space in the refrigerator can be increased, and the volume ratio of the refrigerator can be improved.

Meanwhile, in the above-described embodiment, the evaporator accommodating part 35, the discharge duct 33, and the cold air distribution part 38 are formed in the duct member 30 having the outer wall 31, the partition wall 32, and the guide wall 37. And the rear wall surface 29 of the cooling chamber 10 are formed together, but the outer wall, the partition wall, and the guide wall may be formed on the rear wall surface. Further, the evaporator accommodating part, the discharge duct and the cold air distribution part may be formed in a rectangular cylindrical shape separately from the duct member or the rear wall surface of the cooling chamber, and may be attached to the rear wall of the cooling chamber or the rear surface of the duct member.

The present invention can be applied to both a refrigerator having an independent cold air forming system, a refrigerator having only one evaporator and having a cold air duct, and a refrigerator in which a cooling chamber is divided up and down.

As described above, according to the present invention, a refrigerator volume ratio is improved, so that a refrigerator capable of securing a wider space inside a refrigerator that a user can utilize is provided.

Claims (8)

A refrigerator having a body having at least one cooling chamber formed thereon and an evaporator installed on a rear wall of the cooling chamber to generate cold air, An evaporator accommodating part formed on a rear wall of the cooling chamber to accommodate the evaporator and having a cold air inlet formed at one side thereof; Discharge ducts formed on both sides of the evaporator accommodating portion with the cold air suction ports interposed therebetween and having a cold air discharge port communicating with the cooling chamber; A cold air distribution unit for guiding the cold air from the evaporator accommodating unit to the discharge ducts; And a blower fan installed in the cold air distribution unit to blow cold air into the discharge ducts. The method of claim 1, And the cold air distribution unit is formed in an upper region of the evaporator accommodating unit, and the cold air suction port is formed in a lower region of the evaporator accommodating unit. The method of claim 2, And a duct member mounted on the rear wall surface of the cooling chamber, wherein the evaporator accommodating portion is formed by the rear wall surface of the cooling chamber and the duct member. The method of claim 3, The duct member includes a partition wall separating the evaporator accommodating portion and the discharge duct from each other, and an outer wall spaced apart from the partition wall to the outside, and the cold air discharge port is formed between the outer wall and the partition wall. . The method according to claim 1 or 4, And the cold air distribution unit has a guide wall of a partial arc for guiding cold air in an involute curve along the circumferential direction. The method of claim 5, The guide wall is formed in the duct member in a pair so as to face each other with the blower fan interposed therebetween, and a sidewall bent in the radial direction toward the blower fan is formed in the guide wall adjacent to the evaporator accommodating part of the guide wall. Refrigerator characterized in that. The method of claim 6, And the discharge ducts are joined to each other in the lower region of the duct member. The method of claim 7, wherein The blower fan is a cross-flow fan for blowing cold air in the radial direction with respect to the axis.