KR101519142B1 - A refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator.

The refrigerator according to the embodiment of the present invention is further provided with a blowing fan for a refrigerator, so that circulation of cool air in the refrigerating chamber is smooth and cooling efficiency is increased.

Refrigerator, Evaporator, Fan

Description

A refrigerator

The present invention relates to a refrigerator.

Generally, a refrigerator is a device for low-temperature storage of food, and is configured to be able to refrigerate or store food according to the type of food to be stored.

The inside of the refrigerator is cooled by the continuously supplied cool air, and the cool air is continuously generated by a heat exchange function of the refrigerant by a refrigeration cycle through compression-condensation-expansion-evaporation process. The cool air supplied to the inside of the refrigerator is uniformly transferred to the inside of the refrigerator by the convection so that the food inside the refrigerator can be stored at a desired temperature.

The main body of the refrigerator has a rectangular parallelepiped shape with an open front, and the main body includes a freezing compartment and a freezing compartment. The front surface of the main body is provided with a refrigerating chamber door and a freezing chamber door for selectively shielding the opening portion.

The storage space inside the refrigerator is provided with a plurality of drawers, a shelf, and a storage box for storing various foods in an optimal state. In addition, a plurality of baskets are provided on the rear surface of the doors. The storage space inside the refrigerator is partitioned by the shelf, the storage box, and the basket as described above to enable the storage of suitable foods.

The evaporator constituting the cycle is provided in a cold generating room in a space between a high and low rear wall of the refrigerator and a housing between the main body so that the refrigerant circulates in the high heat exchange area. At this time, a blower fan and a motor for driving the blower fan may be provided on one side of the evaporator so that cool air generated by the evaporator is smoothly supplied to the storage space. The evaporator is generally provided at one side of the freezer compartment so that cold air immediately after passing through the evaporator, that is, cold air at the lowest temperature can be supplied to the freezer compartment.

In recent years, a bottom freeze type refrigerator in which a freezing chamber is positioned below the refrigerator in accordance with the user's preference and a refrigerating chamber is placed thereon is also being marketed. In the bottom freeze type refrigerator, since the freezing chamber is located on the lower side, the evaporator is also positioned below the refrigerator, and the blowing fan is positioned above the freezing chamber.

However, the above-described conventional techniques have the following problems.

Since the blowing fan is provided on one side of the evaporator, that is, the blowing fan is formed to discharge the cold air into the freezing chamber, the cold air is not supplied smoothly to the refrigerating chamber. Particularly, since cold air has a high density and has a tendency to move downward, in the case of the bottom freeze refrigerator, cold air supply to the cold storage room can not be performed more smoothly.

In addition, since cold air can not be supplied smoothly to the refrigerating compartment, the amount of air in the refrigerating compartment is insufficient and the food can not be efficiently cooled.

In addition, since the cold air generated by one evaporator is supplied through the blowing fan, the temperature of the freezing chamber and the refrigerating chamber can not be controlled even if high temperature food is stored in the refrigerating chamber. Therefore, cold air is inefficiently used.

In addition, since cool air is supplied to both the freezing room and the refrigerating room by a single blowing fan, the motor is overloaded and there is a problem that noise is high due to high rotation speed.

SUMMARY OF THE INVENTION The present invention has been proposed in order to solve the above problems, and it is an object of the present invention to provide a refrigerator in which cool air circulation is smoothly performed in a refrigerating chamber.

Another object of the present invention is to provide a refrigerator in which the temperature of the freezing compartment and the temperature of the refrigerating compartment can be separately adjusted.

Further, it is an object of the present invention to provide a refrigerator which generates less noise.

According to an aspect of the present invention, there is provided a refrigerator comprising: a main body having a storage space for storing food at a low temperature; A barrier for partitioning the storage space into a lower freezing chamber and an upper refrigerating chamber; A door movably mounted on a front surface of the main body to selectively shield the freezing compartment and the freezing compartment; A cool air generating chamber formed on a rear side of the freezing chamber; An evaporator placed in the cool air generating chamber to generate cool air; A freezing room blowing fan placed in the freezing room to supply a part of the cool air generated in the evaporator to the freezing room; A connecting duct connecting the cool air generating chamber and the refrigerating chamber so that a remaining part of the cool air generated in the cold drawn green room is moved to the refrigerating chamber; A refrigerating chamber duct provided on an upper side of the connecting duct and extending in a vertical direction of the refrigerating chamber; A damper selectively blocking the interior of the connecting duct; And a defrost heater which is placed on one side of the evaporator to dissolve gaseous substances. At least part of the time for driving the defrost heater and the time for blocking the damper is overlapped.

According to the refrigerator of the present invention as described above, since the cooling fan for the refrigerator is further provided, the cool air circulation in the refrigerator can be smoothly performed and the cooling efficiency can be increased.

In addition, by providing the centrifugal fan as the blowing fan for the refrigerator, the storage capacity of the refrigerator can be maximized.

Further, since the temperature of the refrigerating compartment can be independently controlled separately from the freezing compartment, the cooling efficiency is further improved.

In addition, since only the amount of air necessary for the freezing chamber and the refrigerating chamber can be supplied, the load applied to each motor is reduced, and noise is reduced.

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

FIG. 1 is a side cross-sectional view illustrating a configuration of a refrigerator according to an embodiment of the present invention.

1, a refrigerator 1 according to a first embodiment of the present invention includes a main body 10 having a refrigerating chamber 12 and a freezing chamber 13 partitioned by a barrier 11, A refrigerator compartment door 14 and a freezer compartment door 15 mounted on the front of the refrigerating compartment 12 and the freezing compartment 13 for selectively opening and closing the refrigerating compartment 12 and the freezing compartment 13.

The refrigerator 1 according to the embodiment of the present invention is provided on the upper side of the freezer compartment 13 so that the refrigerating compartment 12 having higher frequency of use can be used more conveniently. The refrigerator compartment door 14 is rotatably coupled to one side of the main body 10 and the freezer compartment door 15 is slidable forwardly together with a storage box or the like inside the freezer compartment 13.

A plurality of shelves 16 and a plurality of storage boxes 17 are provided in the refrigerating compartment 12 and the freezing compartment 13. A plurality of baskets (18) is provided. Foods such as cheese and butter can be stored in the basket 18 when they are exposed to the cold, while maintaining a low temperature, or they may be discolored or damaged due to moisture evaporation.

By the food storage means such as the shelf, the storage box, and the basket as described above, the user can conveniently store and retrieve the food, and the internal space of the refrigerator can be efficiently used.

A machine room 19 provided with a compressor 191 and a condenser (not shown) constituting a refrigeration cycle is provided below the refrigerator 1.

A cooler generating chamber 200 is provided in the rear of the freezing chamber 13 and includes an evaporator 240 for generating cool air by heat exchange between the coolant and the air. The cooler generating chamber 200 is separately partitioned by the evaporator cover 210. The evaporator cover 210 is vertically provided on the rear side of the storage box 17 provided inside the freezer compartment 13 and is separated from the main body 10 by a predetermined distance so that the evaporator 240 is accommodated Thereby forming the cool air generation room 200.

A defrost heater 250 for removing frost is provided below the evaporator 240 and a condenser or a distiller for collecting condensed water or distillate water generated in the evaporator 240 is provided below the defrost heater 250 A constant receiver 290 is provided. The water collected in the demolition water receiver 290 falls into the machine room 19 through the drain hose 291.

A freezing room ventilation fan 270 for driving the freezing room ventilation fan 260 and the freezing room ventilation fan 260 is provided at an upper portion of the evaporator 240. The freezing room blowing fan 260 is provided so as to be directed toward the inside of the freezing room 13 so that the cool air generated by the evaporator 240 is supplied into the freezing room 13.

A freezing room discharge port 211 is formed in the upper part of the evaporator cover 210 so as to correspond to the position of the freezing compartment blowing fan 260 so that cold air blown from the freezing compartment blowing fan 260 flows into the freezing compartment 13, To be smoothly discharged. A freezing room inlet 212 is formed on the lower side of the evaporator cover 210 so that the cold air circulating in the freezing chamber 13 flows into the freezing chamber 200 again.

An outlet of the return duct 280 for supplying air circulated through the refrigerating chamber 12 to the cool air generating chamber 200 is formed below the evaporator 240.

A part of the cool air generated in the evaporator 240 is supplied to the freezing chamber 13 by the freezing chamber blowing fan 260 and the remaining portion is moved to the freezing chamber 12. The cool air flowing into the refrigerating chamber (12) passes through a connecting duct (410) formed in the barrier (11). The connecting duct 410 is formed on the rear side of the barrier 11 and communicates the cool air generating chamber 200 with a refrigerating chamber duct 310 to be described later. In addition, a damper 420 is provided inside the connecting duct 410 to selectively block cold air flowing into the refrigerating chamber 12. The damper 420 selectively opens and closes the connecting duct 410 according to a command from a controller (not shown), and details of the damper 420 will be described later.

The refrigerating compartment duct 310 is formed at the rear of the refrigerating compartment 12 to guide refrigerating air passing through the connecting duct 410 and the damper 420 to be discharged from the upper portion of the refrigerating compartment 12 . The refrigerating compartment duct 310 extends from the bottom of the refrigerating compartment 12 to the ceiling of the refrigerating compartment 12 and has a refrigerating compartment outlet 311 formed at the upper end thereof for discharging the cold air to the upper side of the refrigerating compartment 12. do. The lower end of the refrigerating compartment duct 310 is spaced from the outlet of the connecting duct 410 by a predetermined distance. Therefore, since the load around the outlet of the connecting duct 410 is minimized, the cool air can be smoothly moved.

In addition, a refrigerating compartment blowing fan 330 is provided at an inner lower end of the refrigerating compartment duct 310 to allow cool air to be smoothly moved to the upper portion of the refrigerating compartment 12. The refrigerating compartment duct 310 is formed to correspond to the position of the refrigerating compartment blowing fan 330 and the cool air supplied from the connecting duct 410 flows into the refrigerating compartment duct 310 ) Is perforated. At this time, the refrigerating compartment blowing fan 330 is provided with a centrifugal fan. Details related to this will be described later.

Here, the refrigerating compartment blowing motor 340 for driving the refrigerating compartment blowing fan 330 is formed outside the refrigerating compartment duct 310. That is, only the refrigerating compartment blowing fan 330 is provided inside the refrigerating compartment duct 310. In other words, the refrigerating compartment blowing fan 330 and the refrigerating compartment blowing motor 340 are connected to each other through a motor shaft. The motor shaft is connected to the refrigerating compartment blowing fan 330 through the cool air inlet 313. In detail, the refrigerating compartment blowing motor 340 is provided in front of the refrigerating compartment duct 310 so as to correspond to the positions of the refrigerating compartment blowing fan 330 and the cold air inflow opening 313.

Meanwhile, a guide 312 is formed at a lower end of the refrigerating chamber duct 310 to allow the cool air passing through the refrigerating compartment blowing fan 330 to move upward smoothly.

A motor cover 320 for shielding the refrigerating compartment blowing motor 340 is coupled to the refrigerating compartment duct 310. In detail, one side of the motor cover 320 is connected to the bottom surface of the refrigerating chamber 13, and the other side is connected to a lower portion of the refrigerating chamber duct 310. The motor cover 320 is provided to correspond to the shape of the refrigerating compartment blowing motor 340 so as to surround the refrigerating compartment blowing motor 340.

A refrigerating chamber inlet 281 connected to the return duct 280 is provided on the bottom surface of the refrigerating chamber 12 so that cold air circulated through the refrigerating chamber 12 can be moved to the cold generating chamber 200, Is formed.

The motor cover 320 is connected to the bottom surface of the refrigerating chamber 13 so as to cover the outlet of the connecting duct 410 so that the cold air is prevented from leaking from the lower side of the refrigerating chamber 12. That is, the cool air introduced into the connection duct 410 from the cool air generation chamber 200 is supplied to the space surrounded by the main body 10 and the motor cover 320.

The cold air supplied from the connecting duct 410 flows into the refrigerating chamber duct 310 through the cold air inlet 313 by the rotation of the refrigerating compartment blowing fan 330 and is moved upward so that the refrigerating chamber discharging port 311 To the inside of the refrigerating chamber (13).

The return duct 280 connected to the refrigerating chamber inlet 281 and moving the cold air of the refrigerating chamber 12 to the cold generating chamber 200 is provided at a rear side of the lower end of the refrigerating chamber 12.

2 is a view showing a refrigerating compartment duct and a refrigerating compartment blowing fan of a refrigerator according to an embodiment of the present invention.

Referring to FIG. 2, the refrigerating compartment blowing fan 330 is provided at a lower end of the refrigerating compartment duct 310. In detail, the refrigerating compartment blowing fan 330 is a centrifugal fan, and the rotating shaft of the refrigerating compartment blowing motor 340 is provided to extend in the front-rear direction of the refrigerator 1. That is, the refrigerating compartment blowing fan 330 is provided to face the rear wall of the main body 10.

At this time, as the refrigerating compartment blowing fan 330, a turbo fan, a sirocco fan, or the like can be used.

The refrigerating compartment duct 310 extends to a lower side of the refrigerating compartment blowing fan 330. The guide 312 is formed at the lower end of the refrigerating compartment duct 310 to guide the cool air directed by the compartment blowing fan 330 to the upper side of the refrigerating compartment duct 310.

The guide 312 is formed in a semicircular shape having a larger diameter than the diameter of the refrigerating compartment blowing fan 330 and is formed to surround the lower side of the refrigerating compartment blowing fan 330. Accordingly, even if the cold air is directed downward by the refrigerating compartment blowing fan 330, it is guided upward along the guide 312.

Meanwhile, a pair of left and right channels are formed in the refrigerating chamber duct 310 so that cool air can be uniformly supplied to the inside of the refrigerating chamber 13.

The refrigerating compartment blowing motor 340 is provided in front of the refrigerating compartment duct 310 and the refrigerating compartment blowing motor 340 is protected by the motor cover 320. In detail, the motor cover 320 is connected to the upper side of the cold air inlet 313, and a space provided for the refrigerating compartment blowing motor 340 including the outlet of the connecting duct 410 is provided from the refrigerating compartment 13 So that it is in close contact with the barrier (11). Accordingly, the cold air supplied from the connecting duct 410 can be smoothly moved to the upper side without leaking from the lower side of the refrigerating chamber 13.

2) of the connecting duct 410 is connected to the cold-generating room 200, and an outlet of the connecting duct 410 is formed toward the lower end of the refrigerating compartment duct 310. At this time, since the guide 312 is formed at the lower end of the refrigerating chamber duct 310, the cold air supplied from the connecting duct 410 is first moved to the front of the refrigerating chamber duct 310, To the inside of the refrigerating compartment duct 310. [

Hereinafter, the operation of the refrigerator 1 having the above-described configuration will be described.

When the compressor 191 is driven and the refrigerant flows into the evaporator 240, the air passing through the evaporator 240 is cooled and becomes heat. A part of the generated cool air is supplied to the freezing chamber 13 by the rotation of the freezing compartment blowing fan 260, and a part of the generated cool air is introduced into the connecting duct 410.

The cool air supplied to the freezing chamber 13 circulates in the freezing chamber 13 and then flows into the cool air generation chamber 200 through the freezing chamber intake port 212.

On the other hand, the cool air introduced into the connecting duct 410 is supplied to the refrigerating chamber 12 through the damper 420. In detail, the damper 420 selectively shields the connection duct 410 according to whether the refrigerator compartment 12 needs to be cooled. For example, when the food is stored in the refrigerating chamber 12 and the temperature drops, the damper 420 may be operated to open the connecting duct 410 to allow cool air to flow into the refrigerating chamber 12 . On the other hand, when a load is applied to the freezing chamber 13, the connecting duct 410 may be cut off and the cold air may be introduced into the freezing chamber 13 only.

In addition, the refrigerating compartment blowing motor 340 may be operated when the damper 420 closes the connecting duct 410. That is, when the connecting duct 410 is closed by the damper 420, when the refrigerating compartment blowing motor 340 is operated, air circulation inside the refrigerating compartment 12 is smoothly performed, The cooling performance can be maintained.

In addition, the damper 420 may be operated such that the connecting duct 410 is disconnected when the defrost heater 250 is driven. In this case, heat generated during the operation of the defrost heater 250 can be prevented from flowing into the refrigerating chamber 12. Therefore, since the low temperature atmosphere of the refrigerating chamber 12 is maintained, it is possible to prevent the cooling efficiency from being lowered.

The cold air supplied to the refrigerating chamber (12) flows into the refrigerating chamber duct (310) by the refrigerating chamber blowing fan (330). In detail, the outlet of the connecting duct 410 is introduced into the inner space of the motor cover 320, and then is moved into the refrigerating chamber duct 310 through the cold air inlet 313. The refrigerating room blower fan 330 spreads in a direction perpendicular to the inflow direction by the rotational force of the refrigerating compartment blowing fan 330, that is, up and down and left and right directions of the refrigerator 1. Since the guide 312 is formed on the lower side of the refrigerating compartment blowing fan 330, even if the cold air is blown downward by the refrigerating compartment blowing fan 330, which is a centrifugal fan, .

The cool air moved upward of the refrigerating compartment 12 along the refrigerating compartment duct 310 is discharged into the refrigerating compartment 12 through the refrigerating compartment discharging opening 311 and is circulated through the refrigerating compartment 12 to cool the food And then is moved to the cool air generation room 200 along the return duct 280 through the refrigeration room intake port 281.

Hereinafter, effects of the refrigerator 1 having the above-described configuration will be described.

The refrigerator 1 according to the embodiment of the present invention is provided separately from the refrigerating compartment blowing fan 330 that only blows air to the refrigerating compartment 12 so that circulation of cool air in the refrigerating compartment 12 is smooth, There is an advantage that the cooling efficiency is increased.

Meanwhile, the refrigerating compartment blowing fan 330 is provided as a centrifugal fan, and is formed so as to look at the rear wall of the refrigerator 1. In addition, the refrigerating compartment blowing fan 330 is located inside the refrigerating compartment duct 310. Therefore, the storage capacity of the refrigerating chamber 12 is increased. Particularly, since the refrigerating compartment blowing fan 330 is provided as a centrifugal fan, the refrigerating compartment duct 310 can be formed to have a small thickness. Further, since the thickness of the main body 10 or the barrier 11 is not required to be thin for installing the refrigerating compartment blowing fan 330 and the cooling compartment blowing motor 340, the heat insulating performance can be maintained to be excellent. In addition, since the blowing fan blows the cold air directly from the inside of the refrigerating compartment duct 310, the circulation of the cold air flowing through the refrigerating compartment 12 can be smoothly performed.

In addition, since the cool air supplied to the refrigerating chamber 12 can be selectively blocked by the damper 420, the temperature of the refrigerating chamber 12 can be independently controlled separately from the freezing chamber 13. That is, since the cooling air can be concentratedly supplied to the required place, the cooling efficiency of the refrigerator 1 is improved as a whole.

In addition, since only the amount of air necessary for the freezing chamber 13 and the refrigerating chamber 12 is supplied, the load applied to each motor is reduced, thereby reducing noises.

The scope of the present invention is not limited to the above-described embodiments, and variations, additions and deletions of the embodiments may be made within the scope of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side cross-sectional view of a refrigerator according to an embodiment of the present invention. FIG.

2 is a view illustrating a refrigerator compartment duct and a refrigerator compartment blower of a refrigerator according to an embodiment of the present invention.

Claims (9)

A main body having a storage space in which food is stored at a low temperature; A barrier for partitioning the storage space into a lower freezing chamber and an upper refrigerating chamber; A door movably mounted on a front surface of the main body to selectively shield the freezing compartment and the freezing compartment; A cool air generating chamber formed on a rear side of the freezing chamber; An evaporator placed in the cool air generating chamber to generate cool air; A freezing room blowing fan placed in the freezing room to supply a part of the cool air generated in the evaporator to the freezing room; A connection duct connecting the cold air generation chamber and the refrigerating chamber so that a remaining portion of the cold air generated in the cold air generation chamber is moved to the refrigerating chamber; A refrigerating chamber duct provided on an upper side of the connecting duct and extending in a vertical direction of the refrigerating chamber; A damper selectively blocking the interior of the connecting duct; And A defrost heater disposed on one side of the evaporator to dissolve the defroster, Wherein at least a part of the time when the defrost heater is driven and the time when the damper blocks the connecting duct are overlapped. The method according to claim 1, A refrigerating compartment blowing fan provided inside the refrigerating compartment duct; And And a refrigerating compartment blowing motor placed outside the refrigerating compartment duct and connected to the refrigerating compartment blowing fan. 3. The method of claim 2, A cold air inlet is formed on a front surface of the refrigerating compartment duct, The refrigerating compartment blowing motor is located in front of the cold air inlet, the refrigerating compartment blowing fan is located behind the cold air inlet, And a motor cover covering the refrigerator compartment blowing motor. delete The method of claim 3, One end of the motor cover is connected to the refrigerating chamber duct and the other end is connected to the barrier, And the centrifugal fan is included in the refrigerating compartment blowing fan. 6. The method of claim 5, And a guide for moving downwardly the cool air moved downward by the blowing fan of the refrigerating compartment is formed at a lower end of the refrigerating compartment duct. delete 3. The method of claim 2, Wherein the refrigerating compartment blowing motor is operated when the connecting duct is opened by the damper. delete

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