KR100517614B1 - A refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator capable of eliminating the weak cooling area by allowing cold air to be returned to the lower front and the rear of the refrigerating compartment, and to evenly distribute the cold air in the refrigerating compartment. A barrier partitioning the inside of the storage compartment into a freezing compartment and a refrigerating compartment; A heat exchanger installed at one rear side of the freezing compartment to exchange heat between the refrigerant and the air; A blowing fan generating a blowing force to circulate air exchanged with the heat exchanger to the freezing compartment and the refrigerating compartment; A refrigerator compartment door to open and close the refrigerator compartment; A plurality of baskets mounted on a rear surface of the refrigerating compartment door; A cold air discharge duct formed on an upper side of the barrier; A first cold air return duct formed at one lower rear side of the barrier; Characterized in that it comprises a second cold air return duct formed on the lower front one side of the barrier.

Description

Refrigerator {A refrigerator}

The present invention relates to a refrigerator for storing food in a low temperature state, and more particularly, to a refrigerator capable of forming a plurality of cold air return ducts, eliminating the weak cooling region at one side of the lower side of the refrigerator compartment, and allowing the distribution of cold air in the refrigerator compartment to be even.

In general, a refrigerator is a device that provides cold air by a refrigeration cycle of a refrigerant to store food in a fresh state for a long time by cooling the food or preventing corruption, and a freezer compartment for storing food at sub-zero temperatures and an image. A refrigeration chamber is installed to store food at the temperature of.

In the conventional refrigerator, as shown in FIGS. 1 and 2, the freezing compartment F is positioned next to the refrigerating compartment R, and the freezing compartment F and the refrigerating compartment (F) are located between the freezing compartment F and the refrigerating compartment R. A barrier 2 partitioning R into a separate space is installed, and a door 4 for opening and closing each of the freezing chamber F and the refrigerating chamber R is rotatably connected.

A heat exchanger 20 (evaporator) in which the refrigerant is evaporated while absorbing heat from the surroundings through heat exchange of the refrigerant is installed at the rear of the freezer compartment F, and the cold air passing through the heat exchanger 20 is stored in the freezer compartment F. And a blower 26 for forced convection into the refrigerating chamber R.

In the refrigerating chamber (R), the interior space is divided into a plurality of storage spaces, and shelves (31, 32, 33, 34, 35) are installed at regular intervals from an upper portion to a lower portion so that food or containers are placed thereon. On the back of 4), a plurality of separate baskets 36, 37, 38, 39, 40 are mounted vertically.

Each of the shelves 31, 32, 33, 34, 35 is arranged so that its tip is spaced apart from the back of the door 4 and the baskets 36, 37, 38, 39, 40, as shown in FIG. 2. To form a cold air passage, and a rear end thereof is spaced apart from an inner wall surface of the refrigerating chamber R to form a cold air passage.

Meanwhile, a cold air discharge duct 12 is disposed at an upper rear side of the barrier 10 so that cold air through the heat exchanger 20 may be discharged to the refrigerating chamber R by the blower 26, and the barrier ( On the lower rear side of 10), the cold air refrigerated the food placed on each shelf (31, 32, 33, 34, 35) at a low temperature while passing through the refrigerating chamber (R) can be circulated to the heat exchanger (20). The cold air return duct 14 is arranged so that it may be.

On the other hand, the refrigerator is installed in a machine room (not shown) provided on one side of the refrigerator to compress the refrigerant passing through the heat exchanger 20 at high temperature and high pressure, and the gas refrigerant from the compressor is ambient air A refrigeration cycle includes a condenser (not shown) that discharges heat of the refrigerant to the outside while being condensed by heat exchange with an expansion device, and an expansion mechanism (not shown) that decompresses a high-pressure liquid refrigerant through the condenser.

Looking at the operation of the prior art configured as described above are as follows.

First, when a compressor of a refrigeration cycle is driven, a low temperature low pressure refrigerant flows through the heat exchanger 20, and the air around the heat exchanger 20 exchanges heat with the low temperature refrigerant while passing through the surface of the heat exchanger 20. The cold air is kept at a low temperature below freezing, and the food stored in the freezer compartment F is kept at a low temperature below zero. The cold air is conveyed by the blower fan 26 to cool the discharge air duct 12 of the barrier 2. It is discharged to the refrigerating chamber (R) through.

The cold air discharged into the refrigerating chamber R cools the food or the container placed on each shelf 31, 32, 33, 34, 35 to a low temperature while passing through the cold air passage in the refrigerating chamber R, and the cold air return duct ( 14 is circulated to the heat exchanger 20 side.

However, since the refrigerator according to the prior art has the cold air return duct 14 is provided only on the lower rear side of the barrier 2, the cold air is relatively less around the lower basket 40 of the door 4, Due to this weak cooling area (A) there is a problem that the distribution of cold air in the refrigerating chamber (R) is uneven.

The present invention has been made to solve the above-mentioned problems of the prior art, the cold air is returned to the lower front and rear of the refrigerating compartment to eliminate the weak cooling area, the object to provide a refrigerator that can evenly distribute the cold air distribution of the refrigerating compartment. have.

Refrigerator according to the present invention for solving the above problems and the storage; A barrier partitioning the inside of the storage compartment into a freezing compartment and a refrigerating compartment; A heat exchanger installed at one rear side of the freezing compartment to exchange heat between the refrigerant and the air; A blowing fan generating a blowing force to circulate air exchanged with the heat exchanger to the freezing compartment and the refrigerating compartment; A refrigerator compartment door to open and close the refrigerator compartment; A plurality of baskets mounted on a rear surface of the refrigerating compartment door; A cold air discharge duct formed on an upper side of the barrier; A first cold air return duct formed at one lower rear side of the barrier; Characterized in that it comprises a second cold air return duct formed on the lower front one side of the barrier.

In addition, the refrigerator according to the present invention comprises a storage compartment; A heat exchanger installed outside the storage compartment; A blowing fan for generating a blowing force to circulate air exchanged with the heat exchanger to the storage compartment; A door for opening and closing the storage compartment; A plurality of baskets mounted on a rear surface of the door; A cold air discharge duct formed on one side of an upper side of the storage compartment; A first cold air return duct formed on one side of the rear side of the storage compartment; And a second cold air return duct formed at one side lower front side of the storage compartment.

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

3 is a schematic front view showing an internal configuration of a refrigerator first embodiment according to the present invention, Figure 4 is a side view showing a refrigerator compartment of the first embodiment of the refrigerator according to the present invention.

3 and 4, the inside of the storage 52 is vertically divided by the barrier 60 arranged vertically to form the freezer compartment F and the refrigerating compartment R. As shown in FIG.

The freezer compartment F is provided with a plurality of freezer compartments 81, 82, 83, 84 up and down therein, and a heat exchanger 86 (evaporator) for exchanging refrigerant and ambient air on one side of the rear side is installed, and on the other side of the rear side. A blowing fan 88 is provided to generate a blowing force so that the air heat-exchanged with the heat exchanger 86 is circulated to the freezing compartment F and the refrigerating compartment R.

In addition, a freezing compartment door (not shown) for opening and closing the freezing compartment F is rotatably installed on the front surface of the freezing compartment F. FIG.

On the other hand, the refrigerating chamber (R) is connected to the refrigerating chamber door 90 for opening and closing the refrigerating chamber (R) on the front side, the plurality of refrigerating chamber shelves (91, 92, 93, 94, 95) up and down It is installed spaced apart.

The refrigerating compartment door 90 has a plurality of baskets 96, 97, 98, 99, 100 mounted on the rear thereof.

The baskets 96, 97, 98, 99, and 100 have an upper surface open, protrude toward the inside of the refrigerating chamber R, and are long and disposed on the rear surface of the refrigerating chamber door 90.

Meanwhile, as illustrated in FIG. 4, each of the refrigerator compartment shelves 91, 92, 93, 94, and 95 may be spaced apart from the rear surface of the refrigerator compartment door 90 and the baskets 96, 97, 98, 99, and 100. It is arranged so as to form a cold air passage, the rear end is spaced apart from the inner wall surface of the refrigerating chamber (R) to form a cold air passage.

The refrigerator has a cold air passage duct structure in which cold air discharged into one cold air discharge duct is circulated through two cold air return ducts, and the cold air discharge duct 102 formed on an upper side of the barrier 60. The first cold air return duct 110 formed at one lower rear side of the barrier 60 and the second cold air return duct 120 formed at one lower front side of the barrier 60 are configured.

Here, the first cold air return duct 110 is formed with a cold air circulation passage to the heat exchanger 86, the second cold air return duct 120 is in communication with one side of the first cold air return duct 110. The air is returned through the inlet 112 of the first cold air return duct 110 and the inlet 122 of the second cold air return duct 120 at one side of the first cold air return duct 110. After being combined, it is circulated to the heat exchanger 86 side.

In addition, the second cold air return duct 120 has an inlet 122 positioned next to the lowermost basket 100 among the plurality of baskets 96, 97, 98, 99 and 100.

Meanwhile, as illustrated in FIG. 3, the refrigerator includes a second blowing fan 114 installed in the first cold air return duct 110, and a third installed in the second cold air return duct 120. It is configured to further include a blowing fan 124, it is possible to select the circulation rate of the cold air or the concentrated region of the cold air.

That is, when the second blowing fan 114 and the third blowing fan 124 are rotated by the control signal of the control unit of the refrigerator, the cold air circulation speed inside the refrigerating chamber R is increased, so that the refrigerating chamber R is quickly made. When the cooling unit is cooled to a low temperature, and only the second blower fan 114 is rotated, the cool air gathers in the lower rear side of the refrigerating chamber R, thereby intensively and rapidly cooling the lower rear side of the refrigerating chamber R, and the third blowing fan. If only 124 is rotated, there is a lot of cold air gathered in the lower front of the refrigerating chamber (R) to intensively and quickly cool the lower front of the refrigerator compartment (R).

On the other hand, the refrigerator is installed in a machine room (not shown) provided on one side of the refrigerator (not shown) for compressing the refrigerant passing through the heat exchanger (86) at high temperature and high pressure, and the gas refrigerant from the compressor is ambient air A refrigeration cycle includes a condenser (not shown) that discharges heat of the refrigerant to the outside while being condensed by heat exchange with an expansion device, and an expansion mechanism (not shown) that decompresses a high-pressure liquid refrigerant through the condenser.

Looking at the operation of the present invention configured as described above are as follows.

First, when a compressor of a refrigeration cycle is driven, a low temperature low pressure refrigerant flows through the heat exchanger 86, and the air around the heat exchanger 86 exchanges heat with the low temperature refrigerant while passing through the surface of the heat exchanger 86. The cold air is kept at a low temperature below freezing, and the food stored in the freezer compartment F is kept at a low temperature below zero, and is fed by the blower fan 88 to be refrigerated through the cold air discharge duct 102. Is discharged.

The cold air discharged into the refrigerating compartment (R) passes through the cold air passage in the refrigerating compartment (R), and the food or container placed on each of the refrigerating compartment shelves (91, 92, 93, 94) and the baskets (96, 97, 98, 99). It is cooled to low temperature and moved to the lower part of the refrigerating chamber (R).

Some of the cold air is moved toward the inlet portion 112 of the first cold air return duct 110 to cool the lower rear side of the refrigerating chamber R, and is sucked into the first cold air return duct 110.

The rest of the cold air is moved toward the inlet 122 of the second cold air return duct 120 to cool the lower front of the refrigerating chamber R, particularly around the lowermost basket 100 and return the second cold air. Is sucked into the duct 120.

Meanwhile, the cold air sucked into the first cold air return duct 110 and the second cold air return duct 120 may be combined at one side of the first cold air return duct 110, and then, around the heat exchanger 86. After the air is blown and cooled around the heat exchanger 86, the above circulation is repeated.

5 is a partially enlarged side view when the first cold air return duct of the second embodiment of the refrigerator according to the present invention is hermetically sealed, and FIG. 6 is a part of the second cold air return duct of the second embodiment of the refrigerator according to the present invention to a hermetically sealed portion. An enlarged side view.

As shown in FIG. 5, the first door 130 opens and closes the first cold air return duct 110, and the second door 140 opens and closes the second cold air return duct 120. It is configured to further include, and other configuration is the same as the first embodiment, so the detailed description thereof will be omitted below.

Here, the first door 130 and the second door 140 are rotatably mounted to the barrier 60 or the first cold air return duct 110 and the second cold air return duct 120 by a hinge (not shown). Of course, it is also possible to slide back and forth or up and down by the sliding guides 132 and 142 formed in the barrier 60 or the first cold air return duct 110 and the second cold air return duct 120.

When the user mainly places food or containers in the lower front or lowermost basket 100 of the refrigerating compartment R, and closes the first door 130 to close the first cold air return duct 110, the refrigerating compartment ( The cold air in R) is concentrated around the lower front and lowermost basket 100 of the refrigerating chamber R and circulated through the second cold air return duct 120.

When the user places food or a container mainly on the lower rear side of the refrigerating compartment R and closes the second door 140 to close the second cold air return duct 120, the cold inside the refrigerating compartment R It is concentrated in the lower rear of the refrigerating chamber (R), and is circulated through the first cold air return duct (110).

In the refrigerator according to the present invention configured as described above, the cold air discharge duct is installed at one upper side of the barrier, and the first and second cold air return ducts are installed at the lower rear and front of the barrier, respectively, so that the cold air is at the lower rear and front of the refrigerating compartment. Since it is dispersed and returned, the weak cooling region in the refrigerating compartment is eliminated, and there is an advantage that the distribution of cold air in the refrigerating compartment can be evened.

In addition, the refrigerator further comprises a first door for opening and closing the first cold air return duct, there is an advantage that can choose the centralized cooling of the lower front of the refrigerator compartment by concentrating the cold air to the lower front of the refrigerator compartment.

In addition, the refrigerator further includes a second blowing fan installed inside the first cold air return duct, so that the return of the cold air through the first cold air return duct during the rotation of the second blowing fan, the lower rear of the refrigerating compartment There is an advantage to prevent the cooling of the cold and to maintain the optimum freshness of the food.

In addition, the refrigerator further comprises a second door for opening and closing the second cold air return duct, there is an advantage that the centralized cooling of the lower rear of the refrigerator compartment can be selected by concentrating the cold air to the lower rear of the refrigerator compartment.

In addition, the refrigerator further includes a third blowing fan installed inside the second cold air return duct, so that the return of the cold air through the second cold air return duct during the rotation of the third blowing fan, the lower front of the refrigerator compartment There is an advantage to prevent the cooling of the cold and to maintain the optimum freshness of the food.

In addition, since the second cold air return duct is in communication with one side of the first cold air return duct, it is not necessary to form a separate circulation passage connecting the heat exchanger and the second cold air return duct, thereby simplifying the structure and minimizing heat loss. There is an advantage to this.

In addition, the second cold air return duct has an inlet portion through which cold air is sucked in the refrigerating compartment, which is positioned next to the lowermost basket of the plurality of baskets, so that the lowermost basket is not weakly cooled and maintains an optimal refrigeration state.

1 is a schematic front view showing the internal configuration of a refrigerator according to the prior art,

Figure 2 is a side view showing a refrigerator compartment of the refrigerator according to the prior art,

3 is a schematic front view showing an internal configuration of a refrigerator first embodiment according to the present invention;

4 is a side view showing a refrigerator compartment of the first embodiment of the refrigerator according to the present invention;

5 is a partially enlarged side view when the first cold air return duct of the second embodiment of the refrigerator according to the present invention is sealed;

FIG. 6 is a partially enlarged side view when the second cold air return duct of the second embodiment of the refrigerator according to the present invention is sealed. FIG.

<Explanation of symbols on main parts of the drawings>

52: Warehouse 60: Barriers

81,82,83,84: freezer shelf 86: heat exchanger

88: blower fan 90: refrigerator compartment door

91,92,93,94,95: Refrigerator shelf 96,97,98,99,100: Basket

102: cold air discharge duct 110: first cold air return duct

112: inlet portion 114: second blowing fan

120: second cold air return duct 122: inlet

124: third blowing fan 130: first door

140: second door F: freezer

R: cold storage room

Claims (8)

With storage; A barrier partitioning the inside of the storage compartment into a freezing compartment and a refrigerating compartment; A heat exchanger installed at one rear side of the freezing compartment to exchange heat between the refrigerant and the air; A blowing fan generating a blowing force to circulate air exchanged with the heat exchanger to the freezing compartment and the refrigerating compartment; A refrigerator compartment door to open and close the refrigerator compartment; A plurality of baskets mounted on a rear surface of the refrigerating compartment door; A cold air discharge duct formed on an upper side of the barrier; A first cold air return duct formed at one lower rear side of the barrier; Refrigerator comprising a second cold air return duct formed on the lower front side of the barrier. The method of claim 1, The refrigerator further comprises a first door configured to open and close the first cold air return duct. The method of claim 1, The refrigerator further comprises a second blowing fan installed inside the first cold air return duct. The method of claim 1, The refrigerator further comprises a second door for opening and closing the second cold air return duct. The method of claim 1, The refrigerator further comprises a third blowing fan installed inside the second cold air return duct. The method of claim 1, And the second cold air return duct is in communication with one side of the first cold air return duct. The method of claim 1, The second cold air return duct is a refrigerator, characterized in that the inlet portion in which cold air is sucked in the refrigerating chamber is located next to the lowermost basket of the plurality of baskets. A storage room; A heat exchanger installed outside the storage compartment; A blowing fan for generating a blowing force to circulate air exchanged with the heat exchanger to the storage compartment; A door for opening and closing the storage compartment; A plurality of baskets mounted on a rear surface of the door; A cold air discharge duct formed on one side of an upper side of the storage compartment; A first cold air return duct formed on one side of the rear side of the storage compartment; And a second cold air return duct formed at one side lower front side of the storage compartment.