KR20060030760A - Refrigerator - Google Patents

Abstract

The present invention discloses a refrigerator that can adjust the discharge position and the discharge amount of the cold air. The disclosed refrigerator includes an inner panel installed at a rear side of the storage compartment for forming a cold air flow path and having an inner panel having a cold air discharge port. The refrigerator includes a variable duct installed at the cold air discharge port so that the length of the cold air flow path can be changed. It includes a plurality of cold air distribution port formed.

Description

Refrigerator {REFRIGERATOR}

1 is a cross-sectional view showing the internal configuration of a refrigerator according to the present invention.

Figure 2 is a perspective view showing the configuration of the variable duct and the flow control device of the refrigerator according to the present invention.

Figure 3 is a cross-sectional view showing the configuration of the variable duct and the flow control device of the refrigerator according to the present invention, it shows a state in which the variable duct is pushed back.

Figure 4 is a cross-sectional view showing the configuration of the variable duct and the flow path control device of the refrigerator according to the present invention, showing a state in which the flow path is extended by pulling the variable duct forward.

Explanation of symbols on the main parts of the drawings

10: main body, 11: storage room,

12: door, 16: cold air path,

17: inner panel, 18: evaporator,

19: blower fan, 23: extension part,

30: variable duct, 31: straight part,

32: width reduction portion, 33: cold air distribution port,

40: flow control device, 41: the first air guide member,

42: second air guide member.

The present invention relates to a refrigerator, and more particularly to a refrigerator capable of varying the cold air flow path for even distribution of cold air in the storage compartment.

A general refrigerator includes a cold air flow passage provided in an inner rear side of the storage compartment for circulation of cold air in the storage compartment, a blower fan installed in the cold air flow passage, and an evaporator installed in the cold air flow passage for cooling the circulating air. In addition, the refrigerator is formed at a position spaced apart from each other on the rear side of the storage compartment in order to distribute the cold air into the storage compartment, and each includes a plurality of cold air outlets communicating with the cold air passage. In the refrigerator, when the blower fan operates, the air inside the storage compartment sucked into the cold air flow path is cooled while passing through an evaporator, and then supplied to the storage compartment again through each cold air outlet, thereby cooling the storage compartment.

However, such a refrigerator is divided into a plurality of shelves inside the storage compartment, and the positions of the cold air outlets are fixed to supply the cold air to the spaces between the shelves. Large or, when the specific cold air outlet is blocked by the storage there is a problem that the temperature is generated inside the storage chamber is not uniform cooling as a whole.

On the other hand, there is a refrigerator having a cold air distribution device as disclosed in the Republic of Korea Patent Publication No. 1999-017349 (published on March 15, 1999) to solve this problem. However, such a refrigerator cold air distribution device is equipped with a drive motor and a drive cam for controlling the discharge direction of the cold air, which is a heavy burden due to the complicated configuration.

The present invention is to solve the above problems, an object of the present invention is to provide a refrigerator that can simplify the configuration than the conventional while yet easily implement even distribution of cold air in the storage compartment can adjust the discharge position and discharge amount of the cold air. will be.

Refrigerator according to the present invention for achieving the object, in the refrigerator comprising an inner panel having a cold air discharge port is installed on the rear side of the storage compartment for the formation of the cold air flow path, the cold air discharge port to enable the variable length of the cold air flow path And a plurality of cold air distribution holes formed in the variable duct.

The inner panel may include a plurality of cold air outlets communicating with the cold air passage, and the variable duct may be installed to advance back and forth to the uppermost cold air outlet of the plurality of cold air outlets.

In addition, the inner panel includes an extension that extends toward the front from the upper cold air discharge port, the variable duct is characterized in that it is installed so as to retreat in a state in which the open rear end enters the inside of the extension.

In addition, the variable duct is a straight portion provided so that the rear end outer surface width corresponding to the inner width of the extension portion to advance and retreat along the inner surface of the extension portion, both sides are formed to be inclined so that the inner width decreases toward the front from the straight portion It characterized in that it comprises a width reducing portion.

In addition, the cold air distribution port is characterized in that formed on the front end portion of the variable duct and the side of the width reducing portion.

In addition, the present invention is characterized in that it further comprises a flow passage adjusting device which is installed in the variable duct so as to change the cross-sectional area inside the variable duct according to the forward and backward movement of the variable duct and interlocked with the operation of the variable duct. .

In addition, the flow path adjusting device has a flow path inside the variable duct when the variable duct is extended forward to extend the cold air flow path, and the variable duct is pushed backward to reduce the length of the cold air flow path. It is characterized by operating so that the width becomes small.

In addition, the flow path adjusting device includes a first end and a second end of which each end is rotatably coupled to the inner end of the variable duct, and each rear end is rotatably coupled to the inner panel, and includes a bend between the front end and the rear end, respectively. And an air guide member, wherein the upper and lower widths of the first and second air guide members correspond to the upper and lower widths of the inside of the variable duct.

In addition, the rear end of the first and second air guide member is characterized in that the mutually refracted connection in a state in which movement is limited by a support pin installed on the inner panel side.                     

In addition, between the first and the second air guide member in the variable duct is characterized in that the engaging portion for preventing the phenomenon that the two air guide member is refracted in the direction of the center of the variable duct is provided.

In addition, the first and second air guide member is characterized in that it comprises a front guide portion and a rear guide portion which are connected to each other refractively.

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

As shown in FIG. 1, the refrigerator according to the present invention is rotatable on the front surface of the main body 10 to open and close the main body 10 having the storage compartment 11 formed therein and the open front surface of the storage compartment 11. It has a door 12 to be mounted. The storage compartment 11 is provided with shelves 13a and 13b and a plurality of storage boxes 14a, 14b and 14c for storing the stored matter, and a plurality of doors for storing the stored matter are also provided on the inner surface of the door 12. Pockets 15 are installed.

An inner panel 17 is formed at an inner rear side of the storage chamber 11 so as to be spaced apart from the rear wall of the main body 10 by a predetermined distance, and the inside of the inner panel 17 is a cold air passage 16. The blower fan 19 for forcibly circulating the air circulating through the evaporator 18 and the storage chamber 11 through the cold air passage 16 is provided. In addition, the inner panel 17 has a suction port 20 formed at a lower portion thereof so that the air inside the storage compartment 11 can be sucked into the cold air flow path 16 when the blower fan 16 operates, and the evaporator 18 is mounted thereon. In addition, a plurality of discharge ports 21a, 21b, and 21c are formed at an upper portion thereof so that the cooled air can be discharged back into the storage chamber 11.                     

In addition, the refrigerator according to the present invention allows the user to adjust the discharge position and the discharge amount of the cold in consideration of the amount or position of the storage in the storage compartment (11). To this end, an extension portion 23 extending the cold air flow passage 16 to a predetermined length in front of the cold air discharge ports 21a positioned at the top of the plurality of cold air discharge ports 21a, 21b, and 21c formed on the inner panel 17. The extension portion 23 is provided with a variable duct 30 for advancing and retreating in a predetermined section back and forth to vary the length of the cold air flow passage 16. In addition, the variable duct 30 is provided with a plurality of cold air distribution holes 33 for even distribution of cold air.

As shown in FIG. 2, the variable duct 30 includes a straight portion 31 on the rear end side formed of a width corresponding to the inner width of the extension portion 23 so as to advance and retreat along the inner surface of the extension portion 23. It is made of a box-shaped duct having a width reducing portion 32 in which both sides are formed to be inclined so that the width of the inside decreases toward the front from the straight portion 31. In addition, the rear end is opened so that the variable duct 30 communicates with the flow path inside the extension part 23, and a plurality of cold air distribution ports 33 are formed at both ends of the front end and the width reducing part 32. .

The variable duct 30 allows the discharge position of the cold air supplied through each cold air distribution port 33 to be changed when the user advances the variable duct 30 back and forth to adjust the length of the cold air flow passage 16. This makes it possible to regulate the supply of cold air. In addition, since the internal cross-sectional area decreases toward the front, the flow rate of the cold air discharged through each cold air distribution port 33 is not greatly reduced even if the cold air flow path 16 is extended, and the cold air distribution ports 33 on both sides are provided. ) Is spaced apart from both sides of the storage compartment (11) to facilitate the supply of cold air to the storage compartment (11).                     

In addition, in the present invention, since the variable duct 30 is installed above the storage compartment 11, the length of the cold air flow passage 11 can be adjusted without interference with the stocks loaded in the storage compartment 11, and the cold cold air is stored in the storage compartment 11. By distributing through each cold air distribution port 33 of the upper portion to facilitate the cold air circulation inside the storage chamber (11). That is, the convection phenomenon in which the cold air descends and the relatively hot air rises is made evenly throughout the storage compartment 11 so that the temperature deviation of the storage compartment 11 can be minimized.

In addition, according to the present invention, the flow path control for controlling the amount of cold air discharged through the cold air distribution ports 33 by expanding or narrowing the cross-sectional area of the flow path inside the variable duct 30 as the variable duct 30 moves forward and backward. Apparatus 40 is provided.

2 and 3, the flow path adjusting device 40 includes a first air guide member 41 and a second air guide member 42 which are arranged side by side on both sides of the variable duct 30, and The first and second air guide members 41 and 42 each include a front guide part 41a and 42a and a rear guide part 41b and 42b which are refractably connected through the refraction parts 41c and 42c, respectively. . The front ends of the front guide parts 41a and 42a of the first and second air guide members 41 and 42 are rotatably connected to the inner ends of the variable duct 30, respectively. The rear ends of the rear guide portions 41b and 42b of the 41 and 42 are rotatably connected to the extension 23 extending from the inner panel 17. In this case, the rear ends of the two rear guide parts 41b and 42b are connected to each other so as to be mutually refracted by the support pin 44 coupled to the extension part 23 in a restricted state. In addition, the two air guide members 41 and 42 are configured such that the upper and lower widths correspond to the upper and lower widths inside the variable duct 30 so as to guide the air flow inside the variable duct 30. Also, in the variable duct 30 between the first and second air guide members 41 and 42, the two air guide members 41 and 42 may be prevented from being deflected toward the center of the variable duct 30. The first catching part 45a and the second catching part 45b are provided.

As shown in FIG. 3, the flow path adjusting device 40 includes the bends 41c and 42c of the first and second air guide members 41 and 42 when the user pushes the variable duct 30 backward. Are respectively refracted in a direction close to both inner surfaces of the variable duct 30 so that the flow path width W1 inside the variable duct 30 is narrowed. As shown in FIG. 4, when the user extends the flow path by pulling the variable duct 30 forward, the refraction portions 41c and 42c of the first and second air guide members 41 and 42 are unfolded and variable. The flow path width W2 in the duct 30 can be expanded.

The overall cold air circulation of the refrigerator is as follows.

When the blower fan 19 inside the cold air flow passage 16 operates, the air inside the storage chamber 11 is sucked toward the lower portion of the evaporator 18 through the inlet 20 of the cold air flow passage 16. The air is cooled while passing through the evaporator 18 and then supplied to the inside of the storage chamber through the cold air outlets 21a, 21b, and 21c to cool the storage chamber 11.

In addition, the air discharged through the uppermost cold air discharge port 21a is guided forward through the extension 23 and the variable duct 30, and then through the plurality of cold air distribution ports 33 formed in the variable duct 30. Discharged into the upper space of the storage chamber (11).

On the other hand, when a large heat load is stored in a specific location inside the storage chamber 11 or the overall cold air circulation of the storage chamber is not smooth due to the storage, the user adjusts the position of the variable duct 30 to discharge the cold air. And by controlling the discharge amount it is possible to uniformly cool in a state of minimizing the temperature deviation inside the storage chamber 11 without changing the operating conditions of the blowing fan (19).

That is, as shown in FIG. 3, when the variable duct 30 is pushed backward to shorten the cold air flow path 16, the positions of the plurality of cold air distribution ports 33 provided in the variable duct 30 are biased to the rear. The cold air supplied through the mood volleyball 33 is mainly supplied toward the rear space of the storage compartment 11. In this case, since the flow path width W1 of the inside of the variable duct 11 is narrowed, the discharge amount of cold air through each cold air distribution port 33 is reduced. This is to weaken the discharge pressure of the cold air discharged through each cold air distribution port 33 so that the cold air is mainly supplied to the rear space.

On the other hand, as shown in Figure 4, when extending the cold air flow path 16 by pulling the variable duct 30 in front of the plurality of cold air distribution port 33 provided in the variable duct 30 is moved forward The cold air supplied through the mood volleyball 33 is mainly supplied toward the front space of the storage compartment 11. In this case, since the flow path width W2 inside the variable duct 30 is expanded, the discharge amount of the cold air through each cold air distribution port 33 increases. As described above, since the discharge duct and the discharge amount can be adjusted by moving the variable duct 30 back and forth, the cold air circulation can be appropriately adjusted in consideration of the storage position or heat load in the storage chamber 11.

As described in detail above, the refrigerator according to the present invention can adjust the discharge position of the cold air by moving back and forth the variable duct provided in the upper part of the storage compartment, and the discharge amount of the cold air by the operation of the flow path control device in conjunction with the operation of the variable duct. Since it is possible to easily adjust even distribution of cold air in the storage compartment, there is an effect that can simplify the configuration than the conventional.

Claims (11)

In the refrigerator comprising an inner panel having a cold air outlet, which is installed on the rear side of the storage compartment to form a cold air flow path, And a plurality of cold air distribution holes formed in the variable duct, the variable duct being installed in the cold air discharge port so as to be variable in length of the cold air flow path. The method of claim 1, And the inner panel includes a plurality of cold air outlets communicating with the cold air passage, and the variable duct is installed to advance back and forth to the uppermost cold air outlet of the plurality of cold air outlets. The method of claim 2, And the inner panel includes an extension part extending forward from the uppermost cold air discharge port, and the variable duct is installed to retreat in a state in which an open rear end enters the extension part. The method of claim 3, The variable duct has a straight portion provided with a rear end outer width corresponding to the inner width of the extended portion so as to advance and retreat along the inner surface of the extension portion, and a width at which both side surfaces are inclined so that the inner width decreases toward the front from the straight portion. Refrigerator comprising a reducing unit. The method of claim 4, wherein The cold air distribution port is formed in the front end portion of the variable duct and the width reduction portion characterized in that the refrigerator. The method according to claim 1 or 5, And a flow passage adjusting device installed in the variable duct so as to change a cross sectional area of the inside of the variable duct according to the forward and backward movement of the variable duct, and interlocked with the operation of the variable duct. The method of claim 6, The flow path adjusting device has a flow path width within the variable duct when the variable duct is extended forward to extend the cold air flow path, and the width of the flow path inside the variable duct is increased and the variable duct is pushed backward to reduce the length of the cold air flow path. A refrigerator, characterized in that the operation to be smaller. The method of claim 7, wherein The flow path adjusting device includes a first air and a second air, each of which is rotatably coupled to the inner end of the variable duct, and each of the rear end is rotatably coupled to the inner panel. Including a guide member, And a top and bottom widths of the first and second air guide members correspond to the top and bottom widths of the variable duct. The method of claim 8, The rear end of the first and second air guide member is characterized in that the refrigerator is connected to each other refractively in a state in which movement is limited by a support pin installed on the inner panel side. The method of claim 8, The refrigerator of claim 2, wherein a locking part is provided between the first and second air guide members in the variable duct to prevent the two air guide members from being deflected toward the center of the variable duct. The method of claim 8, And the first and second air guide members each include a front guide part and a rear guide part connected to each other so as to be refracted to each other.

Images