KR100408237B1 - Apparatus for cooling air supply in refrigeration - Google Patents

Abstract

The present invention provides a supply passage for supplying cold air from the freezer compartment to the refrigerating compartment; A rear branch channel branched from the supply channel and connected to a rear discharge port of the refrigerating chamber; An integrated flow path branched from the supply flow path and connected to left and right discharge ports of the refrigerating chamber; A left branch passage branched from the integrated passage and connected to a left discharge port of the refrigerating compartment; A right branch passage branched from the integrated passage and connected to a right discharge port of the refrigerating compartment; Opening and closing means installed in the middle of the rear branch flow path to open and close the flow path; A control unit for controlling opening and closing of the opening and closing means; And the control unit maintains the opening and closing means in an open state, and closes the opening and closing means when the refrigerator door is opened and closed, and reopens the opening and closing means after a predetermined time elapses. By providing the present invention, there is provided a cold air supply apparatus for a refrigerator capable of efficiently controlling the amount of cold air discharged from the discharge ports formed on the inner rear and left and right sides of the refrigerating chamber.

Description

Refrigeration air supply unit {APPARATUS FOR COOLING AIR SUPPLY IN REFRIGERATION}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cold air supply device for a refrigerator, and more particularly, to a cold air supply device for balancing the amount of cold air discharged through cold air discharge ports formed on the rear and left and right sides of a refrigerating chamber.

In general, a refrigerator is divided into a freezer compartment for storing an ice making container and a frozen food at a set temperature, and a refrigerating compartment in which a refrigeration object is stored. In the freezer compartment and the refrigerating compartment, cold air converted by a refrigerant circulating in a freezing cycle is provided. Keep it for a long time.

1 to 4 illustrate a cold air supply structure of a conventional refrigerator, FIG. 1 is a sectional front view, FIG. 2 is a sectional view taken along line AA ′ of FIG. 1, FIG. 3 is a sectional view taken along line AA ′ of FIG. 1, and FIG. BB cross section.

As shown, the conventional refrigerator is partitioned into a freezer compartment 2 and a refrigerating compartment 4 by a barrier 5 filled with insulation.

Heat exchange takes place in the evaporator 6 through which the low-temperature low-pressure refrigerant passes, and part of the cold air is supplied to the freezing chamber 2 through the shroud 12 by the axial fan 8, and the other part of the shroud ( Free fall through 12) is supplied to the refrigerating chamber (2).

The cold air supply structure to the refrigerating chamber is as follows.

The cold air supplied from the freezing chamber to the refrigerating chamber is sucked into the suction port formed on one side of the lower surface of the shroud 12, passes through the cold air supply passage 31 formed below the suction port, and is formed inside the barrier 5. It is divided into branch flow paths 32 and 33.

A part of the cold air branched toward the left branch passage 32 passes through the rear branch passage 30 installed in the longitudinal direction on the rear surface of the refrigerating chamber, and is discharged through the plurality of rear discharge ports 30a, and part of the cold air flows as it is. It discharges through the left discharge port 32a formed in the left side of 4).

The cold air branched toward the right branch passage 33 is discharged through the right discharge port 33a formed in the right side of the refrigerating chamber 4 in its entirety.

In this way, the discharge ports 32a and 33a for cold air are formed not only on the rear surface of the refrigerating chamber 4 but also on both sides thereof to achieve an even temperature distribution in the refrigerating chamber.

The cold air supplied to the freezer compartment 2 and the refrigerating compartment 4 through the above process becomes relatively high temperature through heat exchange with the food stored therein, and the air at high temperature is formed in the freezer compartment 5 of the barrier 5. It moves back to the evaporator 6 via the return flow path 2a and the refrigerator compartment return flow path 4a.

By the way, in the cold air supply structure of the refrigerator as described above, the cold air passing through the cold air supply passage 31 of the freezer compartment is branched into the left and right branch passages 32 and 33 by 1/2, respectively, of which the left branch passage 32 Only the cold air passing through) takes the structure of branching back to the back branch flow path 30 and the flow path toward the left discharge port 32a.

Therefore, as a result, the amount of cold discharged from the left discharge port 32a and the cold air discharged from the right discharge port 33a are different. Therefore, the temperature distribution in the refrigerating compartment cannot be made constant. It has been pointed out as a problem that causes the meaning formed to fade.

In addition, if there is an opening / closing operation of the refrigerator door for taking out or storing food in the refrigerator, the temperature distribution in the refrigerator is temporarily unbalanced. Thus, by using a plurality of discharge ports formed in the refrigerator as described above, this temperature distribution is unbalanced. There has been a demand for a solution to solve the problem in a short time.

In order to solve the above problems, an object of the present invention is to provide a cold air supply device of a refrigerator capable of efficiently controlling the amount of cold air discharged from discharge ports formed in the inner rear and left and right sides of the refrigerating chamber.

1 to 4 illustrate a cold air supply structure of a conventional refrigerator,

1 is a front cross-sectional view

FIG. 2 is a cross-sectional view taken along line AA ′ of FIG. 1;

3 is a cross-sectional view taken along line AA of FIG.

4 is a cross-sectional view taken along line B-B of FIG.

5 and 6 show a cold air supply apparatus according to the present invention,

5 is a cross-sectional view showing a case where the damper is opened.

6 is a cross-sectional view showing a case where the damper is closed.

** Description of the symbols for the main parts of the drawings **

30: branched back flow path 31: cold air supply flow path

35: integrated euro 36: left branch euro

37: right branch passage 40: opening and closing means

41: damper 42: motor

The present invention provides a supply passage for supplying cold air from the freezer compartment to the refrigerating compartment in order to achieve the object as described above; A rear branch channel branched from the supply channel and connected to a rear discharge port of the refrigerating chamber; An integrated flow path branched from the supply flow path and connected to left and right discharge ports of the refrigerating chamber; A left branch passage branched from the integrated passage and connected to a left discharge port of the refrigerating compartment; A right branch passage branched from the integrated passage and connected to a right discharge port of the refrigerating compartment; Opening and closing means installed in the middle of the rear branch flow path to open and close the flow path; A control unit for controlling opening and closing of the opening and closing means; The control unit maintains the opening and closing means in an open state, and when the opening and closing operation of the refrigerator door is closed, closes the opening and closing means and reopens the opening and closing means after a predetermined time elapses. Present the feeder.

In addition, it is preferable that the supply passage, the rear branch passage, the integrated passage, the left branch passage, the right branch passage and the opening and closing means are formed inside the barrier of the refrigerator.

In addition, the opening and closing means may be any type of valve type, hydraulic type, damper rotation by a motor, and the like, as long as the opening and closing means can open and close the cold air flow in the rear branch flow path. A motor for driving; A damper rotatably mounted by the motor; It is preferable to comprise.

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

5 and 6 illustrate an embodiment of the present invention, FIG. 5 is a cross-sectional view showing a case where the damper is open, and FIG. 6 is a cross-sectional view showing a case where the damper is closed.

That is, the drawings correspond to FIG. 4 of the drawings illustrating the cold air supply structure of the conventional refrigerator as described above, and the rest of the configuration is the same as that of the conventional art.

As shown, the cold air supply apparatus of the refrigerator according to the present invention, the supply passage 31 for supplying cold air from the freezing chamber (2) to the refrigerating chamber (4); A rear branch passage 30 branched from the supply passage 31 and connected to the rear discharge port 30a of the refrigerating chamber 4; An integrated flow path 35 branched from the supply flow path 31 and connected to left and right discharge ports (not shown) of the refrigerating chamber 4; A left branch passage 36 branched from the integrated passage 35 and connected to a left discharge port (not shown) of the refrigerating chamber 4; A right branch passage 37 branched from the integrated passage 35 and connected to a right outlet port (not shown) of the refrigerating chamber 4; An opening and closing means (40) installed in the middle of the rear branch passage (30) to open and close the passage; A control unit (not shown) for controlling the opening and closing of the opening and closing means 40; It is configured to include.

In addition, the opening and closing means 40 includes a motor 42 for forward or reverse rotation driving under the control of the controller; A damper 41 rotatably mounted by the motor 42; It is configured to include.

Compared with the conventional cold air supply structure of the conventional refrigerator, there is no difference in forming a flow path for discharging cold air through the discharge ports formed on the rear and side surfaces, but the rear branch flow path in the supply flow path 31 to which cold air is supplied from the freezer compartment ( 30) and after the branching to the integrated passage 35 for the left and right sides, the configuration is diverged from the integrated passage 35 to the left and right branch passages (36, 37).

That is, when the damper 41 is opened, when the amount of cold air supplied through the supply flow passage 31 is 1, the amount discharged through the rear discharge port is 1/2, and the amount discharged through the left and right side discharge ports. Since each can be set to 1/4, the temperature distribution in the refrigerating chamber can be evenly obtained.

In addition, the control unit (not shown) installed on one side of the refrigerator maintains the damper 41 in an open state at normal times (when the refrigerator door is closed), and closes the damper 41 when the refrigerator door is opened or closed. After the predetermined time elapses, the damper 41 is opened again.

As shown in FIG. 5, when the damper 41 is opened, the cold air supplied from the freezing chamber through the supply passage 31 is evenly discharged through the rear and left and right sides of the refrigerating chamber at the same ratio as described above.

As shown in FIG. 6, when the damper 41 is closed, the cold air supplied from the freezing chamber through the supply passage 31 cannot move toward the rear branch passage 30 by closing the damper 41. All of the cold air is discharged through the left and right side discharge port via the integrated flow path (35).

That is, since the cool air is discharged only at the side discharge port in the refrigerating chamber while the damper 41 is closed, the centralized cooling of the area where the discharge port is formed is enabled.

For example, in the use of the refrigerator, the most frequent entry and exit is the beverage mainly placed in the door basket portion, and when the side discharge port is formed in the vicinity of the basket in which the beverage is placed, and the cold air supply device according to the present invention is applied, The beverage can quickly reach the same temperature as other foods stored in the refrigerator for a long time despite frequent entry and exit, thereby enabling the user to use a comfortable refrigerator.

In addition, the cold air supply apparatus according to the present invention is significant in that it provides a means for maintaining a constant temperature distribution in the refrigerating chamber without using additional power consumption, thereby enabling more efficient power operation. .

In addition, the cold air supply structure as described above may be installed anywhere in the space between the freezer compartment and the refrigerating compartment, but it would be more preferable in terms of practical feasibility to be installed inside the barrier 5 which is a structure generally used conventionally. Seems to be.

The present invention provides a cold air supply apparatus for a refrigerator capable of efficiently controlling the amount of cold air discharged from the discharge ports formed on the inner back and left and right sides of the refrigerating chamber.

Claims (3)

A supply passage for supplying cold air from the freezer compartment to the refrigerating compartment; A rear branch channel branched from the supply channel and connected to a rear discharge port of the refrigerating chamber; An integrated flow path branched from the supply flow path and connected to left and right discharge ports of the refrigerating chamber; A left branch passage branched from the integrated passage and connected to a left discharge port of the refrigerating compartment; A right branch passage branched from the integrated passage and connected to a right discharge port of the refrigerating compartment; Opening and closing means installed in the middle of the rear branch flow path to open and close the flow path; A control unit for controlling opening and closing of the opening and closing means; Equipped, The control unit maintains the opening and closing means in an open state, and if there is an opening and closing operation of the refrigerator door, closes the opening and closing means and reopens the opening and closing means after a predetermined time elapses. The method of claim 1, The supply passage, the rear branch passage, the integrated passage, the left branch passage, the right branch passage and the opening and closing means are formed in the barrier of the refrigerator cold air supply apparatus The method of claim 1, The opening and closing means A motor for driving forward rotation or reverse rotation under control of the controller; A damper rotatably mounted by the motor; Cold air supply device of the refrigerator comprising a