KR20100028828A - A refrigerator - Google Patents

Abstract

PURPOSE: A refrigerator is provided to efficiently freeze food placed in a door basket by circulating cold air to the inner side of a door. CONSTITUTION: A refrigerator(1) comprises an inner case(11), a suction port(13b), a lower drawer(35), and a suction flow passage(40). The inner case forms an inner wall of a storage chamber. And the inner case comprises a floor part and an inclined part extended from the floor part. The suction port inhales air within the storage chamber using an evaporator. The lower drawer is installed in the storage chamber, and located in the bottom of the suction port. The suction flow passage is connected with the suction port, and formed between the lower drawer and the inner case.

Description

Refrigerator {A Refrigerator}

The present invention relates to a refrigerator, and more particularly, to a refrigerator capable of maintaining a uniform freezing performance inside the freezer compartment.

Generally, a refrigerator is divided into a refrigerator compartment and a freezer compartment to store and store food. The refrigerating chamber is kept at approximately 3-4 ° C. to keep food fresh and stored for a long time, while the freezer is kept at sub-zero temperature to keep food frozen.

Conventional refrigerators generally have a structure in which a freezer compartment is installed above the refrigerating compartment. In recent years, large-sized refrigerators have emerged, and side by side type refrigerators, in which refrigerators and freezers are installed side by side to store more food, have become popular.

As shown in FIG. 1, in the double door refrigerator 101, a freezing compartment 130 is positioned at the left side of the main body 110, and a refrigerating chamber 140 is positioned at the right side of the freezing compartment 130. The partition wall 115 is vertically disposed between the freezing chamber 130 and the refrigerating chamber 140. The freezing compartment 130 and the refrigerating compartment 140 are opened and closed by respective doors 121 and 123 rotatably coupled to the main body 110.

As shown in FIG. 2, an evaporator 107 is installed inside the main body 110 located behind the freezing compartment 130. The evaporator 107 absorbs heat inside the freezing compartment 130 and evaporates the freezing compartment ( 130) Maintain the interior at sub-zero temperatures.

In more detail, a cold air outlet 113a is formed above the freezing chamber 130 to discharge cold air around the evaporator 107 to the freezing chamber 130. In the cold air discharge port 113a, a blowing fan 112 for blowing cold air generated in the evaporator 107 to the freezing chamber 130 is installed to be adjacent to the cold air discharge port 113a.

An intake port 113b is formed below the freezing chamber 130 to suck air circulated in the freezing chamber 130 and send it to the evaporator 107 to be cooled.

Therefore, the cold air discharged from the cold air discharge port 113a moves from the top to the bottom of the freezing chamber 130 to perform freezing of food. In the freezing chamber 130, the freezing air having a freezing temperature and having an elevated temperature is sucked again through the intake port 113b, and is then sent to the evaporator 107 to be cooled and discharged into the freezing chamber 130.

However, when the cold air passes through the ① path during the cold air circulation process, since the space between the lower drawer 135 and the inner case 111 is narrow, there is a problem that the cold air is not circulated well to the intake port 113b.

And ②, the cold air discharged from the cold air discharge unit 113a as the path is directly lowered into the gap between the shelves (131, 132, 133) and the drawer 34, and is immediately intake into the intake port (113b), the loss of cold air occurs .

In addition, since the cold air is not circulated to the inside of the door basket 125 mounted on the door 121 as in the ③ path, the cold air is not sufficiently supplied to foods such as eggs and beverages placed on the door basket 125.

As described above, in the refrigerator having the cold air circulation structure, the temperature of the portion where the cold air is discharged and the portion of the intake air, that is, the temperature at the top of the freezer compartment and the temperature at the bottom of the freezer compartment differ by about 2 ° C. As such, if the distribution of the internal temperature of the freezing chamber is not uniform, each part has a difference in the freezing performance.

Accordingly, an object of the present invention is to provide a refrigerator which can increase the freezing performance by making the temperature distribution inside the freezing chamber uniform.

Another object of the present invention is to provide a refrigerator that can reduce the loss of cold air circulated in the freezer compartment.

Still another object of the present invention is to provide a refrigerator capable of efficiently freezing foods placed in a door basket by circulating cold air to the inside of the door.

In order to achieve the above object, the present invention is the inner case forming the inner wall of the storage compartment; An inlet formed in the inner case and allowing air inside the storage compartment to be sucked into the evaporator; A lower drawer installed in the storage compartment to be positioned below the intake port; And an intake flow passage formed between the lower drawer and the inner case so as to be in communication with the intake opening, wherein a cross-sectional area of the intake flow passage has a size substantially the same as that of the intake opening.

The inner case includes a bottom portion forming a bottom surface of the storage compartment, an inclined portion extending from the bottom portion and inclined upwardly, wherein the intake passage has a first intake passage formed between the lower drawer and the bottom portion; It may include a second intake passage formed between the lower drawer and the inclined portion.

The cross-sectional area of the first intake passage and the second intake passage may have substantially the same size.

Furthermore, the present invention further includes a grill pan cover coupled to the inner case to cover the evaporator, a shelf and a drawer installed in a horizontal direction of the storage compartment adjacent to the grill pan cover, and the inner case and the respective shelves. And a cold air blocking portion provided in a gap between the drawer and preventing cold air from passing through the gap.

At least one door basket mounted to a door for opening and closing the storage compartment, wherein the door basket includes a through hole formed at an edge adjacent to the storage compartment, and a flow expansion part for expanding the cold air flow circulating in the storage compartment to the inside of the door. It may further include.

Another object of the invention is a storage compartment in which at least one shelf or drawer is mounted; A grill pan cover installed inside the storage compartment; And a cold air vehicle end provided in a gap between the shelf or the drawer and the grill pan cover to prevent cold air from passing through the gap.

The cold air blocking unit may include at least one rib protruding from the grill pan cover.

The cold air blocking unit may include at least one rib protruding from the shelf or the drawer.

In addition, another object of the present invention is a storage compartment in which cold air is circulated from the top to the bottom; A door for opening and closing the storage compartment; At least one door basket mounted to the door; And a through hole formed at an edge of the door basket adjacent to the storage compartment. And a flow expansion part formed in the door basket to expand the cold air flow circulating in the storage compartment to the inside of the door.

The flow expansion part may be at least one opening formed adjacent to the through hole.

Referring to the effect of the refrigerator according to the present invention described above are as follows.

First, it is possible to reduce the temperature difference between the upper and lower parts of the freezer compartment by increasing the flow rate of the cold air flowing from the lower drawer and the inner case to the intake port.

Second, it prevents the gap between the shelf, drawer and grill pan cover to directly descend from the cold air outlet of the upper portion to reduce the loss of cold air flowing directly into the intake port.

Third, it is possible to circulate the cold air to the inside of the door through the flow expansion formed in the door basket can efficiently freeze the food placed on the door basket.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention that can specifically realize the above object will be described.

3 is a side cross-sectional view of the refrigerator according to one embodiment of the present invention, FIG. 4 is a perspective view of the grill pan cover of FIG. 3, and FIG. 5 is a perspective view of the door basket of FIG. 3.

As shown in FIG. 3, the refrigerator 1 of the present embodiment includes a main body 10, a freezer compartment 30 formed inside the main body 10 to freeze and store food, and an inner wall of the freezer compartment 30. An inner case 11 and a door 21 for opening and closing the freezer compartment 30 are provided.

In the lower rear portion of the main body 10, a machine room 17 in which electrical components such as a compressor 5 are installed is provided. A cooling chamber 8 in which cold air is generated is located in a rear region of the main body 10, and the cooling chamber 8 is a freezing chamber 30 by a grill pan cover 13 installed at the rear of the freezing chamber 30. It is formed adjacent to. Upper and lower portions of the grill pan cover 13 are formed with a cold air outlet 13a and an inlet 13b for communicating the freezing chamber 30 and the cooling chamber 8, respectively.

In this case, the grill pan cover 13 forms an inner wall of the freezing compartment 30, and thus may be used as a meaning included in the inner case 11. Therefore, the grill pan cover 13 may be an inner case 11 rather than a separate component.

An evaporator 7 for generating cold air is installed in the cooling chamber 8, and a blower fan 12 for blowing cold air generated in the evaporator 7 to the freezing chamber 30 is provided at an upper portion of the evaporator 7. It is installed adjacent to the cold air discharge port 13a. Therefore, the cool air of the cooling chamber 8 is discharged to the freezing chamber 30 by passing through the cold air discharge port 13a by the blowing fan 12.

In the space of the freezer compartment 30 located below the cold air outlet 13a, a plurality of shelves 31 are placed on which food or containers containing food are placed. The shelf 31 is supplied with cold air discharged to the cold air discharge port 13a to perform freezing of food.

The upper drawer 34 and the lower drawer 35 are installed in the lower region of the freezing compartment 30 in which the intake port 13b is located. The lower drawer 35 located below the upper drawer 35 is installed at the lowermost position of the freezing compartment 30, and the upper drawer 35 is located below the inlet 13b.

The inner case 11 includes a bottom portion 11a constituting the bottom surface of the freezing chamber 30 and an inclined portion 11b extending from the bottom portion 11a and inclined upward. The lower drawer 35 ) Is installed to be spaced apart from the inner case (11).

On the other hand, the intake passage 40 is formed between the lower drawer 35 and the inner case 11 so as to communicate with the inlet 13b.

The intake flow passage 40 is a cold air flow passage at the bottom of the freezer compartment 30 that allows the cool air in the lower portion of the freezer compartment 30 to flow into the intake port 13b when the cool air inside the freezer compartment 30 is circulated.

The intake passage 40 is a first intake passage 41 formed between the lower drawer 35 and the bottom portion 11a, and a second formed between the lower drawer 35 and the inclined portion 11b. It consists of an intake flow path 43.

The cross-sectional areas A1 and A2 of the intake passage 40 have substantially the same size as the cross-sectional area A3 of the intake port 13b. That is, the cross-sectional area A1 of the first intake passage 41, the cross-sectional area A2 of the second intake passage 43, and the cross-sectional area A3 of the intake opening 13b have substantially the same size.

The intake passage 40 expands the space between the conventional lower drawer 135 and the inner case 111, which is relatively narrower than the cross-sectional area of the inlet 13b, so that the circulation of cold air is more smoothly performed.

Therefore, when the cold air moves as shown in the ① direction shown in FIG. 3, since a greater amount of cold air is transferred to the lower portion of the lower drawer 35, the freezing performance of the food contained in the lower drawer 35 is improved, and the freezer compartment 30 The temperature difference between the top and bottom of the can be reduced.

Meanwhile, the plurality of shelves 31, 32, and 33 and the upper drawer 34 installed in the horizontal direction of the freezing chamber 30 are adjacent to the grill pan cover 13. Conventionally, after the cold air discharged from the cold air discharge unit 113a descends directly into the gap between the shelves 131, 132, and 133 and the grill pan cover 13, the gap between the grill pan cover 13 and the drawer 134 is immediately Since the air intakes through the intake port 113b, a loss of cold air occurs.

In order to solve this problem, the grill pan cover 13 has a cold air blocking unit 50 to prevent cold air from passing through the gap between the respective shelves 131, 132, and 133 and the drawer 134. Is formed.

The cold air blocking unit 50 may include at least one rib protruding from the grill pan cover 13. In this embodiment, three ribs 51, 53, and 55 are formed as shown in detail in FIG.

That is, the ribs 51, 53, 55 each have a shelf rib 51, 53 protruding to closely adhere to one end of the shelf 51, 53, and a drawer protruding so as to be in close contact with one end surface of the drawer 55. The rib 55 is made.

The cold air blocking unit 50 may block the gap between the shelves 32 and 33 and the drawer 34. Therefore, since the cold air in the direction of ② shown in FIG. 3 is directly lowered and not drawn into the intake port 13b, the amount of loss of the conventional cold air can be reduced.

Meanwhile, at least one door basket 25 may be mounted on the door 21 that opens and closes the freezing compartment 30. In this embodiment, five door baskets 25 mounted on the door 21 are installed to be spaced apart from each other.

The door basket 25 has a through hole 26, as shown in FIG. The through hole 26 is formed at an edge adjacent to the freezer compartment 30 to allow cold air to pass through the area of the door basket 26 adjacent to the freezer compartment 30.

In addition, the door basket 25 is provided with a flow expansion part 60 extending the cold air flow circulating in the freezing chamber 30 to the inside of the door 21.

The flow expansion part 60 may be at least one opening formed in the door basket 25 adjacent to the through hole 26. In this embodiment, two flow expansion units 60 are formed to correspond to the through hole 26.

As shown in FIG. 3, the flow expansion part 60 allows cold air to flow in the direction ④ so that freezing of food (not shown) placed in the inner space of the door basket 25 is performed smoothly. do.

As described above, the refrigerator of the present invention can reduce the temperature difference between the upper and lower portions of the freezer compartment and can uniformly distribute the temperature inside the freezer compartment, thereby improving the overall freezing performance.

Hereinafter, a preferred embodiment of the present invention with reference to the drawings, but the scope of the present invention is not limited thereto.

An embodiment of the present invention has been described with respect to the freezer compartment of the refrigerator, but is not limited thereto, and may be applied to a refrigerating compartment, and the present invention may be applied to a storage compartment of various refrigerating apparatuses in which freezing and refrigerating are simultaneously performed.

As such, the present invention is not limited to the above-described embodiments, and can be modified by those skilled in the art without departing from the spirit of the present invention, and such modifications will fall within the scope of the present invention.

1 is a perspective view of a typical double door refrigerator.

2 is a side cross-sectional view of FIG.

3 is a side cross-sectional view of a refrigerator according to an embodiment of the present invention.

4 is a perspective view of the grill pan cover of FIG.

5 is a perspective view of the door basket of FIG.

<Explanation of symbols for the main parts of the drawings>

 1: refrigerator 7: evaporator

11: inner case 11a: bottom

11b: inclined portion 13: grill pan cover

25: door basket 26: through hole

30: freezer 31, 32: shelf

34 drawer 35 lower drawer

40: intake passage 41: first intake passage

43: second intake passage 50: cold air blocking unit

51, 53, 55: rib 60: flow expansion portion

Claims (10)

An inner case forming an inner wall of the storage compartment; An air inlet for sucking air in the storage compartment into an evaporator; A lower drawer installed in the storage compartment to be positioned below the intake port; And An intake flow passage formed between the lower drawer and the inner case to communicate with the intake port, And a cross-sectional area of the intake passage has a size substantially the same as that of the intake port. The method of claim 1, The inner case A bottom portion constituting the bottom surface of the storage compartment, An inclined portion extending from the bottom portion and inclined upwardly; The intake flow path A first intake flow passage formed between the lower drawer and the bottom portion; And a second intake passage formed between the lower drawer and the inclined portion. The method of claim 2, And a cross-sectional area of the first intake passage and the second intake passage has substantially the same size. The method according to any one of claims 1 to 3, A grill pan cover coupled to the inner case to cover an evaporator; Further comprising a shelf and a drawer which is installed toward the horizontal direction of the storage compartment to be adjacent to the grill pan cover, And a cold air blocking unit provided in a gap between the inner case and each of the shelves and the drawer to prevent cold air from passing through the gap. The method according to any one of claims 1 to 3, At least one door basket mounted to the door for opening and closing the storage compartment, The door basket, A through hole formed at an edge adjacent to the storage compartment, And a flow expansion unit for expanding the cold air flow circulating in the storage compartment to the inside of the door. A storage compartment in which at least one shelf or drawer is mounted; A grill pan cover installed inside the storage compartment; And And a cold air blocking unit provided in a gap between the shelf or the drawer and the grill pan cover to block cold air from passing through the gap. The method of claim 6, And the cold air blocking part includes at least one rib protruding from the grill pan cover. The method of claim 7, wherein And the cold air blocking part includes at least one rib protruding from the shelf or the drawer. A storage compartment in which cold air is circulated from top to bottom; A door for opening and closing the storage compartment; At least one door basket mounted to the door; A through hole formed at an edge of the door basket adjacent to the storage compartment; And And a flow expansion part formed in the door basket and extending a flow of cold air circulating in the storage compartment to the inside of the door. The method of claim 9, The flow expansion unit is a refrigerator, characterized in that at least one opening formed adjacent to the through hole.

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