KR100409009B1 - a refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator in which a freezer compartment and a refrigerating compartment are distinguished from each other by a partition wall. In particular, the present invention relates to a refrigerator that eliminates the temperature difference in the refrigerating compartment by transferring condensing to the refrigerating compartment side as well as conduction by conduction.

The freezer compartment and the refrigerating compartment according to the present invention are divided into right and left by the partition wall, a plurality of shelves are installed in the refrigerating compartment spaced up and down, the refrigerator in the freezer compartment and the refrigerating compartment in the refrigerator circulated by a blowing fan, the partition and the shelf In order to solve the difference between the left and right and top and bottom temperature of the refrigerating compartment, an electric heat transfer unit is installed to transfer the cold air from the freezer compartment to the refrigerating compartment side by conduction method, so as to reduce the temperature difference depending on the location of the refrigerating compartment and reduce the flow rate of the cold compartment. The moisture of food stored in can be preserved, so food can be kept fresh.

Description

Refrigerator {a refrigerator}

The present invention relates to a refrigerator in which a freezer compartment and a refrigerating compartment are distinguished from each other by a partition wall. In particular, the present invention relates to a refrigerator that eliminates the temperature difference in the refrigerating compartment by transferring condensing to the refrigerating compartment side as well as conduction by conduction.

Generally, a refrigerator is a device for storing food freshly at a low temperature for a long time by providing cold air using a freezing cycle, and a freezer compartment for storing food at subzero temperatures and a refrigerator compartment for storing food at a temperature of an image in the partition. By compartment is installed.

1 is a front view showing a refrigerator according to the prior art, Figure 2 is a plan view showing a refrigerator according to the prior art, Figure 3 is a side cross-sectional view showing a refrigerator compartment of the refrigerator according to the prior art.

In the conventional refrigerator, as shown in FIGS. 1 to 3, the freezing compartment F and the refrigerating compartment R are located at left and right sides, and the freezing compartment F and the refrigerating compartment R are separated by a partition wall 2. The freezer compartment wall 4 and the refrigerating compartment wall 6 are foam molded to insulate heat introduced from the outside.

In addition, a compressor (not shown) compresses the gas refrigerant introduced from an evaporator (not shown) installed inside the freezing chamber wall 4 to a high temperature and high pressure in the machine room 8 formed below the freezing chamber F and the refrigerating chamber R. And a condenser (not shown) connected to the compressor (not shown) for condensing the high temperature and high pressure gas refrigerant introduced from the compressor (not shown) through heat exchange with outdoor air.

In the freezer compartment F, an evaporator (not shown) for absorbing heat from the surroundings through heat exchange of the refrigerant to supply cold air is built into the rear wall, and a blower for blowing cold air through the evaporator (not shown) to the refrigerating chamber (R). The fan 10 is installed.

The refrigerating chamber (R) has a top shelf (12a), upper shelf (12b), lower shelf to protrude from the partition (2) in order to partition the internal space of the refrigerating chamber (R) into a plurality of storage spaces spaced at regular intervals in the vertical direction 12c, a bottom shelf 12d is provided, and an upper drawer 14a and a lower drawer 14b are installed up and down at a lower side of the lower shelf 12d, and in a vertical direction inside a refrigerating chamber door D. A plurality of spaced door shelves 16a, 16b, 16c, 16d and 16e are provided.

In particular, the upper side of the refrigerating chamber (R), the controller 18 for controlling the flow rate of the cold air in the freezer compartment (F) supplied to the refrigerating chamber (R) by the blowing fan (10), and the cold air passing through the controller 18 In addition to the flow path of the damper 20 is provided with a plurality of discharge ports (19a, 19b, 19c) formed on the front and lower surfaces.

Here, the controller 18 is operated by receiving a signal from the temperature sensor (not shown) of the refrigerating chamber (R) to adjust the flow rate of the cold air in the freezer compartment (F) flowing into the refrigerating chamber (R) by the discharge port (19a, 19b) Cold air is supplied to the refrigerating chamber (R) through (19c).

The cold air introduced into the refrigerating chamber R side through the discharge port 19c formed at the lower side of the damper 20 by the blower fan 10 among the cold air of the freezing chamber F is the shelves 12a, 12b, and 12c. 12d) flows into the space formed between the rear wall of the refrigerating chamber (R) and flows into the upper drawer (14a), and the cold air is formed on the rear wall of the upper drawer (14a) while colliding with the upper drawer (14a). It is introduced into the suction port 14a 'and circulates along the flow path formed inside the rear wall of the refrigerating chamber R and the freezing chamber F.

In addition, the cold air introduced into the refrigerating chamber R side through discharge ports 19a and 19b formed on the front surface of the damper 20 among the cold air of the freezing chamber F, the upper surface of the uppermost shelf 12a and the refrigerating chamber R. It flows into the space formed between and hits the door shelf 16a side installed above the refrigerator door D or flows toward the refrigerator door hinge 17 side and hits the refrigerator door D and the shelf 12a, 12b, 12c, 12d. ) Flows down into the space formed between the inlet and circulates into the suction port (14a ').

Therefore, the freezer compartment cold air is circulated by the blower fan 10 and the inside of the freezer compartment R and the freezer compartment F to maintain the inside of the freezer compartment F and the refrigerator compartment R at a low temperature.

However, in the conventional refrigerator, when looking at the temperature distribution inside the refrigerating chamber R, the temperature of the partition 2 side that is in contact with the freezer compartment F, that is, the left side, is lower than the temperature of the right side which is in contact with the outside. ) And the equilibrium (equilibrium) is maintained at a lower temperature than the temperature at which the cold air is delivered from the upper side of the upper side where the damper 20 is discharged from the cold compartment (R) is installed in the refrigerating chamber (R) Temperature difference occurs on the left and right sides and the top and bottom sides.

As described above, the left temperature of the inside of the refrigerating compartment R is lower than the right temperature. The cold air of the freezing compartment F is conducted to the refrigerating compartment R side through the partition wall 2, and the conducted cold air is formed in the gap of the refrigerating compartment door D. This is because it exits to the outside through the refrigerator compartment wall 6 which is in contact with the outside air.

In addition, as described above, the upper temperature inside the refrigerating chamber R is lower than the lower temperature, so that the cold air in the freezer compartment F opens the discharge ports 19a, 19b, and 19c positioned above the refrigerating chamber R by the blower fan 10. This is because it is discharged through and delivered to the lower side by natural convection due to the temperature difference of the upper and lower sides.

Therefore, in the conventional refrigerator, since the temperature inside the refrigerating chamber is controlled by the flow rate of the cold air discharged into the refrigerating compartment, in order to reduce the temperature deviation inside the refrigerating compartment, the discharge port for increasing the flow rate of the air discharged into the refrigerating compartment or discharging the cold air into the refrigerating compartment. Can be formed in several places.

However, in the conventional refrigerator, when the flow rate of the cold air discharged into the refrigerating compartment is increased, moisture of the food stored in the refrigerating compartment is absorbed, and the food is not preserved freshly. It is difficult to secure the flow rate of the cold air has a problem that it is difficult to effectively maintain the refrigerating chamber at low temperature.

The present invention has been made to solve the above problems of the prior art, in order to reduce the temperature variation in the refrigerating compartment to increase the flow rate of the cold air by transferring the cold air in the freezer compartment to the relatively low temperature portion in the refrigerating compartment. The purpose is to provide a refrigerator that can not only keep food fresh but also keep the fridge at a low temperature effectively.

1 is a front view showing a refrigerator according to the prior art,

2 is a plan view showing a refrigerator according to the prior art,

Figure 3 is a side sectional view showing a refrigerator compartment of the refrigerator according to the prior art,

4 is a front view showing a refrigerator according to the present invention,

5 is a plan view showing a refrigerator according to the present invention,

Figure 6 is a side sectional view showing a refrigerator compartment of the refrigerator according to the present invention,

7 is a perspective view illustrating a first embodiment of a refrigerator heat transfer unit, which is a main part of the present invention;

8 is a perspective view illustrating a second embodiment of a refrigerator heat transfer unit, which is a main part of the present invention.

<Explanation of symbols on main parts of the drawings>

F: Freezer R: Refrigerator

52: bulkhead 56: cold storage wall

D: refrigerator door 60: blower fan

62a, 62b, 62c, 62d: Shelf 82: First heat transfer part

84a, 84b, 84c, 84d: Second heat transfer portion 86: Third heat transfer portion

Refrigerator according to the present invention for solving the above problems is the freezer compartment and the refrigerating compartment is divided left and right by a partition wall, a plurality of shelves are installed in the refrigerating compartment spaced up and down space, the cold air of the freezer compartment and the refrigerating compartment is circulated by a blower fan In the refrigerator, the partition wall and the shelf is provided with a heat transfer unit for transmitting the cold air in the freezer compartment side to the refrigerating compartment side in order to eliminate the left and right and up and down temperature difference of the refrigerating compartment.

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

4 is a front view showing a refrigerator according to the present invention, Figure 5 is a plan view showing a refrigerator according to the present invention, Figure 6 is a side cross-sectional view showing a refrigerator compartment of the refrigerator according to the present invention.

In the refrigerator according to the present invention, as shown in FIGS. 4 to 6, the freezing compartment F and the refrigerating compartment R are foam-molded and freezer walls 54 and the refrigerating compartment wall 56 to insulate the outside. 52, respectively, formed as independent spaces on the left and right sides, and a compressor (not shown) and a condenser (not shown) are built in the machine room 58 formed below the freezing chamber F and the refrigerating chamber R.

In the refrigerator compartment R, a plurality of shelves 62a, 62b, 62c, and 62d may be spaced up and down, and the cold air exchanged by an evaporator (not shown) installed in the refrigerator compartment R may be a freezer compartment F. And a blower fan 60 circulating in the refrigerating chamber R is installed above the freezing chamber F, and the partition 52 and the shelves 62a, 62b, 62c, and 62d are positioned inside the refrigerating chamber R. In order to eliminate the temperature difference according to the heat transfer unit for transmitting the cold air in the freezer compartment (F) side to the refrigerating chamber (R) side in a conductive manner.

In more detail, in the freezer compartment F, an evaporator (not shown) for supplying cold air through heat exchange with a refrigerant is embedded in the rear wall, and the cold air passing through the evaporator (not shown) is freezer compartment F and the refrigerating compartment ( Blowing fan 60 to be delivered to the R) side is provided above the freezing chamber (F).

In the refrigerating chamber R, the uppermost shelf 62a, the upper shelf 62b, the lower shelf 62c, and the lowest shelf 62d are protruded from the partition 52 so as to form respective independent storage spaces. R) is not only spaced apart up and down inside the lower shelf (62d), the upper and lower drawers (64a, 64b) are respectively installed, a plurality of door shelves (66a) inside the refrigerator compartment door (D) 66b, 66c, 66d, and 66e are provided.

In particular, a discharge port through which cold air is discharged to the freezing chamber F is formed at an upper side of the freezing chamber F, and is formed to face the partition wall 52 such that cold air is discharged to the partition wall 52 in which the heat transfer unit is built.

In addition, the controller 68 for adjusting the flow rate of the cold air introduced into the refrigerating chamber (R) by a temperature sensor (not shown) for sensing the temperature of the refrigerating chamber (R) side on the upper side of the refrigerating chamber (R), and the controller ( Dampers 70 are formed to form flow paths and discharge ports 69a, 69b, and 69c so that cold air passing through 68 is discharged into the refrigerating chamber R.

7 is a perspective view illustrating a first embodiment of a refrigerator heat transfer unit, which is a main part of the present invention, and FIG. 8 is a perspective view of a second embodiment of a refrigerator heat transfer unit, which is a main part of the present invention.

As shown in FIG. 7, the heat transfer part according to the first embodiment is a material having a high thermal conductivity and is built in the vertical direction in the partition wall 52 so as to be in contact with the side of the freezer compartment in order to effectively transfer cold air from the freezer compartment to the refrigerating compartment side. Each shelf to be in contact with the upper surface or the lower surface of each of the shelves (62a, 62b, 62c, 62d) connected to the first heat transfer portion 82 of the flat plate shape and the side of the first heat transfer portion 82 is disposed And the second heat transfer portions 84a, 84b, 84c, and 84d in the shape of flat plates embedded in the 62a, 62b, 62c, and 62d.

Here, the second heat transfer portion (84a, 84b, 84c, 84d) is one end is connected to the side of the first heat transfer portion 82, the other end is located at the end of the shelf (62a, 62b, 62c, 62d) In addition, between the shelf and the shelf on which the second heat transfer parts 84a, 84b, 84c, and 84d are installed, fans for transmitting cold air at the side of the partition wall 52 to the end of the shelf may be installed to increase heat transfer efficiency.

By the way, when looking at the temperature inside the refrigerating chamber (R), because the temperature on the partition wall 52 side in contact with the freezer compartment (F) is lower than the temperature on the end side of the shelves (62a, 62b, 62c, 62d), the temperature is relatively The second heat transfer portions 84a, 84b, 84c, and 84d to lower the heat transfer amount on the side of the partition wall 52 having a lower temperature and to increase the heat transfer amount on the end sides of the shelves 62a, 62b, 62c, and 62d having a relatively high temperature. A portion connected to the first heat transfer portion 82 is formed to have a smaller area than a portion located at the end side of the shelves 62a, 62b, 62c, and 62d.

The ends and side surfaces of the second heat transfer parts 84a, 84b, 84c, and 84d are connected to the sidewalls of the refrigerating chamber R, which are in contact with the outside, to transfer cold air from the freezer compartment F side to the cold side R from the outside air. The third heat transfer part 86 having a plate shape for preventing heat from flowing into the side is embedded.

As illustrated in FIG. 8, the heat transfer part according to the second embodiment is a material having high thermal conductivity, and is vertically disposed on the partition wall 52 in order to effectively transfer cold air from the freezer compartment F side to the refrigerating compartment R side. Built-in, but the first heat transfer unit 92 of the flat plate shape is arranged to contact the side of the freezer compartment (F), and is connected to the side of the first heat transfer unit 82 and installed so as to be spaced apart before and after a predetermined interval (w) and each shelf (62a, 62b, 62c, 62d) is composed of fin-shaped second heat transfer parts (94a, 94b, 94c, 94d) embedded in the respective shelves (62a, 62b, 62c, 62d) so as to be in contact with the upper or lower surface. do.

Here, one end of the second heat transfer part (94a, 94b, 94c, 94d) is connected to the side of the first heat transfer unit 92 and the other end is located at the end of the shelf (62a, 62b, 62c, 62d) In addition, between the shelves where the second heat transfer parts 84a, 84b, 84c, and 84d are installed, a fan for transferring cold air to the end of the shelf may be installed between the shelves and the shelves to increase the heat transfer efficiency.

The ends and side surfaces of the second heat transfer parts 94a, 94b, 94c, and 94d are connected to sidewalls of the refrigerating chamber R, which are in contact with the outside, to transfer cold air from the freezer compartment F side to the cold storage room R from the outside air. The third heat transfer part 96 having a plate shape for preventing heat from flowing into the side is embedded.

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

The cold air cooled by the evaporator (not shown) built in the freezer compartment F side is discharged from the upper side of the refrigerating compartment R by the blower fan 60 and the shelves 62a, 62b, 62c, and 62d, respectively. After flowing into the space formed between the rear wall of the refrigerating chamber (R) and convection naturally from the upper side to the lower side of the refrigerating chamber (R) while keeping the inside of the refrigerating chamber (R) at a low temperature, the cold air is stored in the refrigerating chamber (R) and the freezing chamber (F). Circulated along the flow path formed in the rear wall.

In addition, the cold air discharged to the partition wall 52 through the discharge port formed in the upper side of the freezing chamber F circulates inside the freezing chamber F and maintains the freezing chamber F at a low temperature as well as a first built in the partition wall 52. The heat transfer part 82 and the second heat transfer parts 84a, 84b, 84c and 84d built into each shelf and the third heat transfer part 86 built into the right side wall of the refrigerating chamber in contact with the outside air are cooled to raise and lower the inside of the refrigerating compartment. And it is possible to reduce the temperature deviation in the refrigerating chamber (R) due to heat transfer by conduction of the left and right temperature difference.

In the refrigerator according to the present invention configured as described above, the cold air of the freezer compartment is not only convection but also conducted through the heat transfer part installed inside the partition wall and the shelf and transferred to the inside of the refrigerating compartment, thereby increasing the temperature deviation according to the position of the inside of the refrigerating compartment without increasing the flow rate of the cold air. It can be reduced, not only to keep food fresh, but also to effectively keep the refrigerator at a low temperature.

Claims (6)

A freezer compartment and a refrigerating compartment are divided into right and left by partition walls, and a plurality of shelves are installed in the refrigerating compartment and spaced apart from each other, and the cold air of the freezer compartment and the refrigerating compartment is circulated by a blower fan. And a heat transfer part configured to transfer cold air from the freezer compartment side to the refrigerating compartment side in a conductive manner in order to eliminate the left, right, and up and down temperature differences of the refrigerating compartment. The method of claim 1, The heat transfer part is embedded in the partition wall in a vertical direction to transfer the cold air from the freezer compartment to the refrigerating compartment side, and the first heat transfer unit is built in the shelf, respectively, one end is connected to the first heat transfer unit and the other end is the end of the shelf. And a second heat exchanger having a flat plate shape disposed in the plate to allow heat exchange between each shelf and the first heat transfer unit. The method of claim 2, The second heat transfer portion is located in the end of the shelf area of the part connected to the first heat transfer portion in order to reduce the heat transfer amount on the side of the partition wall having a relatively low temperature in the refrigerating chamber and increase the heat transfer amount on the shelf end side having a relatively high temperature. Refrigerator, characterized in that formed narrower than the area of the portion. The method of claim 1, The heat transfer part is embedded in the partition wall in a vertical direction to transfer the cold air from the freezer compartment to the refrigerating compartment side, and the first heat transfer unit is built in the shelf, respectively, one end is connected to the first heat transfer unit and the other end is the end of the shelf. And a plurality of fins positioned at a predetermined distance so as to be spaced apart from each other before and after the second heat transfer unit to exchange heat between each shelf and the first heat transfer unit. The method according to claim 2 or 4, The heat transfer unit further comprises a third plate-like heat transfer unit is installed on the outer wall of the refrigerating compartment so that one end is connected to the end of the second heat transfer unit in order to prevent heat from entering the refrigerator compartment side from the outside air. The method according to any one of claims 2 to 4, And a blower fan configured to transfer cold air from a partition side to a shelf end side between the shelf and the shelf on which the second heat transfer unit is installed.