KR20060000217A - Excessive cooling prevention method of refrigeration room in the side-by-side type refrigerator - Google Patents

Abstract

The present invention relates to a refrigerating compartment overcooling prevention method of a double door refrigerator, and to provide a refrigerating compartment subcooling prevention method in which a cold air of a freezer compartment flows into a refrigerating compartment in a double door refrigerator to prevent the refrigerating compartment from being overcooled.

 To this end, in the refrigerating compartment overcooling prevention method, a wind direction sensor is operated to detect whether there is wind speed due to cold circulation of the refrigerating compartment, and if the wind speed is detected, the euro flap moves upwards so that the cold air in the refrigerating compartment passes through the cold air passage. The flow into the freezing compartment through the unit, and if the wind speed is not detected, the flow path is moved downward to block the cold air flow path.

Therefore, according to the present invention, it is possible to prevent the overcooling of the refrigerating compartment by installing the euro flap in the cold air passage passage part and opening the flow flap only when cold air is circulated in the refrigerating compartment.

Refrigerator, double door, cooling, cold, subcooling, flap

Description

Excessive Cooling prevention method of refrigeration room in the side-by-side type refrigerator}

1 is a longitudinal sectional view showing a cold air supply structure in a conventional double-door refrigerator.

2 is a longitudinal sectional view showing a cold air supply structure according to the present invention.

3 is a cross-sectional view of a flap for preventing internal cooling of the interior chamber and a circuit block for controlling the same according to the present invention taken along the line A-A 'of FIG.

4 is a flowchart showing a control process for preventing the refrigerating compartment undercooling according to the present invention.

***** Explanation of the main symbols in FIGS. 2 and 3 *****

20: main body, 21: first cooler

22: freezer compartment fan, 23: refrigerator compartment fan

24: cold air flow passage part, 25: cold air connection duct

26: second cooler, 27: refrigerator compartment flap

32: gear portion, 33: euro flap

The present invention relates to a refrigerating compartment overcooling prevention method of a double-door refrigerator, and more particularly, to an overcooling prevention method for preventing the refrigerating compartment from being overcooled by excessive flow of cold air from a refrigerating unit into a refrigerating compartment in a double-door refrigerator.

In general, a two-door refrigerator has a relatively large capacity and is a combination of various functions, and the freezer compartment is provided on the left and right sides of the refrigerator such that the freezer compartment and the refrigerating compartment are vertically perpendicular to each other in the vertical direction, and a freezer compartment having an evaporator mounted on the rear side of the freezer compartment. It is configured to perform the refrigerating function and the freezing function, respectively, by inhaling the air in the refrigerator compartment to the lower side and simultaneously discharging it to the upper side. 1 is a view illustrating a cold air supply structure of the double door refrigerator.

As shown in FIG. 1, the cold air supply structure of the conventional double door refrigerator has a freezing compartment F and a refrigerating compartment R, which are each formed in parallel and vertically and separated by a trimming section 6, and a freezing compartment F. The cooler chamber 1 which is separated and formed so as to form a space separate from the freezing chamber F at the rear, and the evaporator 2 and the blower fan 3 are installed, and the cold air generated in the cooler chamber 1 is the refrigerating chamber R. The supply duct 4 formed at the upper side of the trimming section 6 so as to be supplied to the cooling section and a passage through which the cold air whose temperature has risen in the refrigerating chamber R is returned to the cooler chamber 1 at the lower side of the trimming section 6. And a damper (8) for adjusting the amount of cold air provided and supplied to the refrigerating chamber side of the supply duct (4).

The cold air generated by the evaporator 2 is supplied to the freezing chamber F and the refrigerating chamber R by the blower fan 3, and the cold air that has risen in temperature by heat exchange with the stored foods stored in each chamber is evaporated again. The inside of the refrigerator is cooled while repeating the circulation returned to the side.

In addition, the inside of the refrigerating chamber is provided with a plurality of shelves (not shown) for storing stored foods, etc., a lower vegetable storage box 13 for storing vegetables is generally installed below.

In the case of a double-door refrigerator, the cold air that has risen in temperature in the refrigerating compartment is returned through the cold air intake port 5 formed at an arbitrary position of the side of the refrigerating compartment, so that the positions of the cold air discharge port and the intake port can be freely configured in comparison with the general refrigerator.

However, in spite of these advantages, even when the refrigerating compartment is at an appropriate level and the refrigerating compartment fan is stopped, the cold air of the freezing compartment F flows into the refrigerating compartment through the cold air inlet 5, thereby causing subcooling in the refrigerating compartment.

The present invention is conceived to overcome the disadvantages of the prior art described above, and aims to provide a refrigerating compartment subcooling prevention method in which the cold air of the freezer compartment flows into the refrigerating compartment in the double door refrigerator to prevent the refrigerating compartment from being overcooled.

The present invention provides a refrigerating compartment and a cold prevention method for detecting the freezer compartment cold air circulation in order to achieve the above-mentioned technical problem and opening the euro flap and closing the euro flap when there is no cold circulation to prevent the refrigerating compartment from being overcooled. .

To this end, the refrigerator includes a flow path flap that closes or opens the cold air flow path part formed at the lower end of the trimmer that divides the freezer compartment and the refrigerating compartment, a wind direction sensor for detecting cold air circulation of the refrigerating compartment, and controls opening and closing of the euro flap by the detection sensor. Motor drive unit

A gear unit for moving the flow flap is configured by the motor driving unit.

In the double door type refrigerator having such a configuration, the refrigerating compartment overcooling prevention method includes a step of detecting whether there is wind speed due to the cold air circulation of the refrigerating compartment by operating a wind direction sensor, and when the wind speed is detected, the euro flap moves upwards The cold air flows into the freezing chamber through the cold air flow passage, and if the wind speed is not detected, the flow path is moved downward to block the cold air flow passage.

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

2 is a longitudinal sectional view showing a cold air supply structure according to the present invention, showing a structure in which cold air generated in the cooler 21 is circulated.

Referring to the circulation process according to the cold air circulation structure, the cold air generated in the first cooler 21 and the second cooler 26 is circulated by the freezer compartment 22 and the refrigerator compartment fan 23, respectively. By this circulation, the freezing compartment and the refrigerating compartment are cooled. Of course, the main body 20 includes a compressor (not shown) for compressing the refrigerant at high temperature, a solenoid valve (not shown) for distributing and circulating the refrigerant, and the like. However, since these configurations are well-known techniques, a detailed description is not necessary. Therefore, the description thereof will be omitted here.

Accordingly, in order to move the cold air generated by the first cooler 21 and the second cooler 26 to the refrigerating compartment, a cold air connection duct 25 is formed in the freezing compartment and the refrigerating compartment. Through this connection duct 25, the cold air of the freezing compartment can be introduced into the refrigerating compartment.

Of course, the cold air connection duct 25 has a refrigerator compartment flap (27) to prevent the refrigeration of the freezer compartment back flow. That is, the refrigerator compartment flap 27 is opened by the wind speed of the cold air when the cold air is introduced into the cold air connection duct 25, and when the cold air of the freezer is not introduced into the cold room, there is no cold air wind speed. It becomes a state.

The cold air circulated by the freezing compartment fan 22 and the refrigerating compartment fan 23 in the freezing compartment and the refrigerating compartment cools heat in the refrigerator, thereby increasing the temperature. Therefore, it is necessary to send it to the cooler to cool again. For this purpose, a cold air passage passage part 24 is formed at the bottom of the body 20 between the refrigerating chamber and the freezing chamber. That is, it is located at the bottom of the wall that divides the freezer compartment and the refrigerating compartment.

The cool air that has risen in the temperature of the refrigerating chamber by the flow path passage 24 is introduced into the cooler 21 of the freezing chamber, thereby re-cooling.

However, the cool air of the first cooler 21 or the second cooler 26 flows into the refrigerating chamber through the flow path passage 24 by natural convection from the cooler of the inner cavity, which may cause the subcooling of the refrigerating chamber.

In order to prevent this, the flow path passage part 24 has a flow path flap 33 which prevents cold air from the freezing chamber from flowing into the refrigerating chamber and a circuit block for controlling the flow path, which is illustrated in FIG. 3. 3 is a cross-sectional view taken along the line AA ′ of FIG. 2.

That is, the flow path flap 33 for opening and closing the flow path passage part 24 is installed in FIG. 3, and the gear part for operating the flow path flap 33 by the motor driving part 31 and the motor driving part 31 for controlling the flow path flap 33. 32 is configured. In addition, the wind direction sensor 30 for performing the operation of the motor driving unit 31 is further configured. The wind direction sensor 30 closes the flow path flap 33 by giving a signal to the motor driving part 31 when detecting whether the cold air is circulated in the refrigerating chamber.

Of course, by connecting the wind direction sensor 30 to the microcomputer (not shown), it is also possible for the microcomputer to control the motor driving unit 31 and the wind direction sensor 30. However, in the present invention, the motor driving part 31 is controlled by the wind direction sensor 33 for easy understanding.

Therefore, when cold air is not circulated in the refrigerating compartment, the euro flap 33 is closed and the wind direction sensor 33 detects the wind generated by the cold air circulation and operates the euro flap 33 to open it. do. 4 is a flowchart illustrating the flow path control process. This is described as follows.

The wind direction sensor 30 starts the sensor operation as power is supplied to the refrigerator (step S400). That is, when the cold air is circulated in the refrigerating chamber by the first cooler 21 or the second cooler 26 of the freezer compartment, the wind speed is generated.

The wind direction detection sensor 30 detects whether cold air is circulated in the refrigerating chamber through the wind speed (step S410). For example, if the wind speed of the detection criteria is set to 1 m / sec, for example, if the wind speed of the cold air reaches 2 m / sec by the cold air circulation, the wind direction sensor 30 detects that cold air is circulated in the refrigerating chamber.

As a result of whether the wind direction is detected, if the wind direction is detected, the wind direction sensor 30 signals the motor driver 31 to open the euro flap 33 so that the cold air flows into the freezing chamber through the cold air passage passage part 24. (Step S420).

On the other hand, if the wind direction is not detected, the wind direction sensor 30 signals the motor drive unit 31 to close the flow flap 33 so that the cold air flow path part 24 is blocked, so that the cold air in the freezer compartment is the cold air flow path part. Do not flow into the refrigerating compartment through the 24 (step S430).

That is, when cold air does not flow into the refrigerating compartment, the euro flap 33 blocks the cold air passage passage part 24, and when cold air flows into the refrigerating compartment, cold air circulated in the refrigerating compartment flows into the freezing compartment.

As mentioned above, the present invention has been described in detail with reference to the accompanying embodiments and drawings, but the present invention is not limited to the specific embodiments, and those skilled in the art or acquiring general knowledge may have the contents It should be understood that numerous variations and modifications can be made without departing from the scope of the invention. Therefore, the protection scope of the present invention will be preferred based on the appended claims.

According to the present invention, it is possible to prevent the overcooling of the refrigerating compartment by installing the euro flap in the cold air passage passage part and opening the flow flap only when cold air is circulated in the refrigerating compartment.

Claims (1)

A flow path flap which closes or opens the cold air flow path part formed at the lower end of the trimming part which divides the freezer compartment and the refrigerating compartment, Wind direction sensor for detecting cold air circulation in the refrigerator compartment, A motor driving unit controlling opening and closing of the euro flap by the detection sensor; In the double door refrigerator having a gear unit for moving the euro flap by the motor driving unit, The wind direction sensor is activated to detect whether there is wind speed by the cold air circulation of the refrigerating chamber, If the wind speed is detected, the euro flap is moved upwards and the cold air in the refrigerating compartment flows into the freezing compartment through the cold air passage passage; If no wind speed is detected, the euro flap moves downward to block the cold air flow path. Refrigeration room overcooling prevention method of a double door refrigerator comprising a.

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