KR100451347B1 - Control apparatus for supply the cool air of refrigerator - Google Patents

Abstract

The present invention relates to a cold air supply control device of the refrigerator, which is divided into a freezer compartment for freezing food and a cold compartment for storing food by a partition wall, and a cooling device for generating cold air for cooling the refrigerator compartment and the freezer compartment at a predetermined portion. A main body mounted, a freezer compartment sensor mounted at a predetermined portion of the freezer compartment for detecting an internal temperature of the freezer compartment, a refrigerator compartment sensor mounted at a predetermined portion of the refrigerator compartment for sensing an internal temperature of the refrigerator compartment, and cold air generated by a cooling device of the refrigerator Cold air flow guide means for guiding the inside of the refrigerating compartment and a predetermined portion of the cold air guide flow path, controlled by the detection signals of the refrigerating compartment sensor and the freezer compartment sensor to adjust the flow rate of the cold air supplied to the refrigerating compartment By being provided and configured, the detection scene generated by the freezer compartment sensor and the refrigerator compartment sensor Controlling the cooling air flow rate adjusting device, by using it one to increase the cooling efficiency of the refrigerator.

Description

CONTROL APPARATUS FOR SUPPLY THE COOL AIR OF REFRIGERATOR}

The present invention relates to a cold air supply control device for a refrigerator, and more particularly, to a cold air supply control device for controlling a flow rate of cold air supplied to the refrigerator compartment by a sensor mounted in the refrigerator compartment and the freezer compartment.

In general, the refrigerator is divided into a freezer compartment for storing ice-making containers and frozen foods at a set temperature, and a refrigerating compartment in which refrigeration objects are stored, and a refrigeration cycle device is installed therein to circulate the refrigeration cycle of compression, condensation, expansion, and evaporation. The evaporator in the circulation circuit absorbs the heat from the outside to keep the inside frozen and refrigerated.

Referring to the accompanying drawings, a structure and a cold air supply process for supplying cold air to the refrigerating chamber in the conventional refrigerator are as follows.

1 is a front view illustrating an internal structure of a conventional refrigerator, and FIG. 2 is a side view illustrating an internal structure of the refrigerator of FIG. 1, and as shown in FIGS. 1 and 2, the refrigerator is mounted at a predetermined portion of the main body 1. Divided into the freezing compartment 10 and the refrigerating compartment 20 by the partition wall 16, and looks at the cold air supply structure, a portion of the cold air cooled by heat exchange in the evaporator (3) through which the low-temperature low-pressure refrigerant passes through Is forcedly blown by the blower fan 13 to be supplied to the freezing chamber 10 through a shroud 14, and a part of the remaining cold air is freely dropped through the shroud 14 so as to refrigerate the cold air guide flow path. It is guided to the refrigerating chamber 20 side through (15).

The cold air supply to the refrigerating chamber 20 is formed in the longitudinal direction at the rear of the main body 1, and the cold air is freely dropped through the refrigerating chamber cold air guide passage 15 connecting the shroud 14 and the refrigerating chamber 20. In this case, the flow rate of the cold air introduced into the refrigerating chamber 20 is controlled by the cold air flow rate adjusting means 25 mounted inside the cold air guide passage 15.

The flow rate-controlled cold air is supplied to the refrigerating compartment 20 through a plurality of refrigerating compartment discharge ports 15a formed on the front surface of the refrigerating compartment cold air guide flow path 15 so as to cool the inside of the refrigerating compartment 20.

In the conventional refrigerator configured as described above, there are various types of cold air flow rate adjusting means 25 for adjusting the flow rate of the cold air supplied to the refrigerating chamber 20. One example will be described below.

When the user adjusts a cooling control switch (not shown) mounted on the rear surface of the freezer compartment, the cold air flow rate adjusting unit 25 is operated to open and close the cold air guide passage 15 to be supplied to the refrigerating compartment 20. It is to control the flow rate of cold air.

However, in the conventional refrigerator as described above, since the flow rate of the cold air supplied to the refrigerating compartment 20 is manually controlled, there is a limit in properly controlling the flow rate of the cold air supplied according to the internal conditions of the changing freezer compartment and the refrigerating compartment. .

An object of the present invention devised in view of the above point is to provide a refrigerator air supply control device for automatically adjusting the flow rate of the cold air supplied to the refrigerating chamber by a detection signal detected by sensors mounted in the freezer compartment and the refrigerating compartment. Is in.

1 is a front view showing the internal structure of a conventional refrigerator,

Figure 2 is a side view showing the internal structure of the refrigerator of Figure 1,

3 is a front view of a refrigerator equipped with a cold air supply adjusting device according to an embodiment of the present invention;

4 is a side cross-sectional view of the refrigerator of FIG. 3 taken along line A-A;

5 is a perspective view showing a cold air flow rate adjusting means mounted to the refrigerator of FIG.

6 is a plan view showing an open state of the cold air flow rate adjusting means mounted to the refrigerator of FIG.

7 is a plan view showing a state in which the cold air flow rate adjusting means mounted to the refrigerator of FIG. 3 is closed;

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

1: body 2: cooling chamber

3: evaporator 10: freezer

11: freezer door 12: grill

12a: freezer compartment discharge port 13: blowing fan

14: shroud 15: cold room guided air flow path

15a: refrigerating chamber discharge port 16: partition wall

16a: by suction 20: freezer

21: freezer door 22: shelves

117: freezer temperature sensor 124: refrigerator compartment temperature sensor

125: cold air flow control means 126: damper base

126a: through hole 127: motor

127a: rotation axis 128: opening and closing plate

128a: coupling part

As described above, the refrigerator air supply control apparatus for achieving the object of the present invention is partitioned into a freezer compartment for freezing food and a refrigerator compartment for storing food by a partition wall, and generating cold air for cooling the refrigerator compartment and the freezer compartment. A main body having a cooling device mounted on a predetermined portion, a freezing chamber sensor mounted inside the freezer compartment to sense an internal temperature of the freezer compartment, a refrigerator compartment sensor mounted inside the refrigerator compartment to sense an internal temperature of the refrigerator compartment, and a cooling apparatus of the refrigerator A cold air flow guide that guides the cold air generated in the inside of the refrigerating compartment, and a cold air flow rate control unit installed in the cold air flow guide passage to control the flow rate of the cold air supplied to the refrigerating compartment by being controlled by detection signals of the refrigerating compartment sensor and the freezing compartment sensor Means are provided and configured.

Hereinafter, a cold air supply control device of a refrigerator according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings, and the same parts as in the related art will be described with the same reference numerals.

3 is a front view of a refrigerator equipped with a cold air supply control device according to an embodiment of the present invention, and FIG. 4 is a cross-sectional side view illustrating a portion A-A of the refrigerator of FIG. 3.

The freezing chamber 10 which is nutrient-divided by the main body 1, the partition wall 16 integrated in the main body 1, and the food storage frozen, and the refrigerating chamber 20 which refrigerates and the front surface of the said main body 1 A freezer compartment 11 installed in the freezer compartment 11 to open and close the freezer compartment 10 and a refrigerating compartment door 21 to open and close the refrigerating compartment 20, and a refrigerating cycle that generates cold air necessary for cooling the freezer compartment 10 and the refrigerating compartment 20. It is provided and configured.

The freezing compartment (10) is a cooling chamber (2) partitioned by a shroud (14) formed in the rear of the main body 1 opposite to the direction in which the freezing chamber door (11) is installed, and the cooling chamber (2) an evaporator (3) which is mounted inside and generates cooling air, and a blowing fan (13) mounted on the upper side of the evaporator (3) to forcibly blow the cold air generated by the evaporator (3) to flow. And a grill 12 formed on the front surface of the blower fan 13 to control the flow of cold air and having a freezer compartment discharge port 12a communicating with the freezer compartment 10, and a freezer compartment temperature sensor mounted inside the freezer compartment. 117 is provided and configured. At this time, the mounting position of the freezer compartment temperature sensor 117 may be mounted at any position inside the freezer compartment 10 as long as the temperature of the freezer compartment 10 can be measured.

The suction passage 16a is formed inside the separation wall 16 to re-introduce the cold air supplied to the freezing chamber 10 and the refrigerating chamber 20 into the cooling chamber 2.

The refrigerating compartment 20 is formed on the rear surface of the refrigerating compartment 20 and a plurality of shelves 22 mounted in multiple layers to allow food or the like to be seated in the refrigerating compartment 20 and generated by the evaporator 3. It controls the flow rate of the cold air supplied to the refrigerating compartment cold air guide flow path 15 and the refrigerating compartment cold air guide flow path 15 for guiding the cold air discharged into the refrigerating compartment 20 through the refrigerating compartment discharge port 15a. The cold air flow rate adjusting means 125 and the refrigerating chamber temperature sensor 124 mounted inside the refrigerating chamber 20 and sensing the temperature therein are provided. At this time, the mounting position of the refrigerating compartment temperature sensor 124 may be mounted at any position inside the refrigerating compartment 20 as long as it is a position capable of measuring the temperature of the refrigerating compartment 20.

As shown in FIG. 5, the cold air flow rate adjusting means 125 is mounted inside the cold air flow guide passage and has a damper base 126 having a semicircular through hole 126a formed on one side thereof, and the damper base 126. The rotating shaft 127a of the motor 127 is mounted on a motor 127 having a rotating shaft 127a formed at a central portion thereof and having a semicircular cross-sectional shape and a coupling portion 128a formed at the center of the semicircular arc. Is coupled to the rotation is configured to be provided with an opening and closing plate 128 for opening and closing the through hole (126a).

When power is supplied to the refrigerator configured as described above, a compressor constituting the refrigeration cycle is driven inside the refrigerator to compress a low-temperature, low-pressure gas refrigerant into a high-temperature, high-pressure gas refrigerant. Gas refrigerant is condensed into a high-temperature, high-pressure liquid refrigerant passing through the condenser.

The condensed high temperature and high pressure liquid refrigerant is converted into a low temperature and low pressure liquid refrigerant through an expansion valve, and the low temperature and low pressure liquid refrigerant is converted into a low temperature and low pressure gas refrigerant while passing through the evaporator (3). By evaporation, the surrounding air is heat exchanged by the evaporation of the evaporator 3 to cool the surrounding air, thereby generating cold air.

Part of the cold air generated as described above is forcedly blown according to the rotation of the blower fan 13 installed at the rear of the main body 1 and supplied to the freezer compartment 10 through the freezer compartment outlet 12a to cool down to a predetermined temperature. After the freezing, a part of the remaining cold air is guided through the shroud 14 and free-falled and guided through the cold air guiding flow path 15 formed on the rear surface of the refrigerating compartment 20, and then the refrigerating compartment discharge port 15a. Through the refrigerating chamber 20 is supplied through.

In this case, when a detection signal is generated by the freezer compartment temperature sensor 117 and the refrigerating compartment temperature sensor 124 mounted on the freezing compartment and the refrigerating compartment, the inside of the cold air guide passage 15 is installed according to the detection signal. The cold air flow rate adjusting means 125 operates to adjust the flow rate of the cold air supplied to the refrigerating chamber 20.

As shown in FIG. 6, when the rotation shaft 127a rotates and the opening / closing plate 128 rotates, the through hole 126a formed in the damper base 126 is opened and cold air is opened through the open through hole 126a. Is supplied to the freezing chamber 20.

As shown in FIG. 7, the rotation shaft 127a is rotated at a predetermined angle by the detection signals generated by the freezer compartment temperature sensor 117 and the refrigerating compartment temperature sensor 124, so that the opening and closing plate 128 has the damper base. If the through-hole 126a formed in 126 is blocked, cold air supplied to the freezing compartment 20 is blocked.

In addition, the size of the cross section formed by opening and closing the through hole 126a is adjusted according to the degree of rotation of the opening and closing plate 128, thereby allowing various flow rates of the cold air supplied to the refrigerating compartment 20 to be adjusted. .

As described above, the cold air supply control apparatus of the refrigerator according to the present invention automatically controls the flow rate of the cold air supplied to the refrigerating compartment by automatically operating the cold air flow rate adjusting means by the detection signal generated by the freezer compartment temperature sensor and the refrigerating compartment temperature sensor. By being able to adjust, there is an effect that can increase the cooling efficiency of the refrigerator.

In addition, it is possible to adjust the size of the through-hole through which the cold air passes in accordance with the degree of rotation of the opening and closing plate, it is possible to maintain the inside of the refrigerator in an appropriate cooling state.

Claims (2)

The main body is partitioned into a freezer compartment for freezing food and a cold compartment for storing food by a partition wall, and a cooling device for generating cold air for cooling the refrigerator compartment and the freezer compartment is installed at a predetermined portion; A freezer compartment sensor mounted inside the freezer compartment and detecting a temperature inside the freezer compartment; A refrigerator compartment sensor mounted inside the refrigerator compartment and detecting a temperature inside the refrigerator compartment; A cold air guide channel for guiding the cold air generated by the cooling device of the refrigerator into the refrigerating chamber; Controlling the cold air supply of the refrigerator characterized in that the cold air flow rate control means which is controlled by the detection signals of the refrigerating chamber sensor and the freezer compartment sensor is mounted in the cold air guide flow path to adjust the flow rate of the cold air supplied to the refrigerating compartment Device. According to claim 1, wherein the cold air flow rate adjusting means is mounted in the interior of the cold air guide flow path and a damper base formed in a predetermined portion through-holes through which cold air passes, and mounted in the center of the damper base of the refrigerator compartment sensor and the freezer compartment sensor The air supply control of the refrigerator, characterized in that the motor is operated by the detection signal to generate a rotational force, and the opening and closing plate is mounted to the rotary shaft of the motor to rotate about the rotary shaft of the motor to open and close the through hole Device.