KR20110012376A - Refrigerator - Google Patents

Abstract

PURPOSE: A refrigerator is provided to prevent defrost water from freezing in an air guide formed in a cold air generation room and to stably supply cold air. CONSTITUTION: A refrigerator comprises a main body, a cold air generation room, an air guide(200), and a conduction unit(300). The main body has a storage room. The cold air generation room is arranged on the top of the main body and has a cooling fan(176) and an evaporator(170). The air guide is arranged in the cold air generation room and changes the moving direction of cold air exhausted from the cooling fan. A heat conduction unit is formed in the air guide in order to prevent defrost water from freezing.

Description

Refrigerator {Refrigerator}

The present invention relates to a refrigerator for conducting heat to an air guide provided in the refrigerator to prevent freezing of the defrost water.

In general, a refrigerator is a device for supplying cold air generated in an evaporator to a storage compartment (a freezing compartment or a freezing compartment) to maintain freshness of various foods for a long time. The refrigerator includes a main body in which a storage compartment for storing food in a low temperature state is formed, and a door is installed on the front of the main body to open and close the storage compartment.

The refrigerator includes a cooling cycle configured to cool the storage compartment by circulation of the refrigerant, and the main body is provided with a mechanical compartment provided with a plurality of electrical components to form a cooling cycle.

Such a cooling cycle includes a compressor for raising / heating a low temperature / low pressure gas refrigerant to a high temperature / high pressure gas refrigerant, a condenser for condensing the refrigerant introduced from the compressor by outside air, and a narrow diameter compared to the diameter of other parts. And an expansion valve for depressurizing and expanding the refrigerant introduced from the condenser, and an evaporator for absorbing heat in the furnace as the refrigerant passing through the expansion valve is evaporated in a low pressure state as a basic component.

The machine room is provided with a blowing fan for cooling the compressor and the condenser. One side and the other side of the machine room is provided with a suction port and a discharge port for suction and discharge of the external air, respectively.

Through this structure, when the fan is rotated, air is introduced into the machine room from the inlet. The air introduced in this way is discharged back to the outside of the machine room through the discharge port while passing through the condenser and the compressor, and in this process, the condenser and the compressor are cooled by the external air.

The refrigerator includes a so-called top mount type in which a freezer compartment and a refrigerating compartment are formed up and down, and the freezer door and the refrigerating compartment door are opened and closed in the freezer compartment and the refrigerating compartment, respectively, and the refrigerating compartment and the freezer compartment are formed up and down, and the refrigerating compartment door is a refrigerating compartment. Each of the so-called bottom freezer type, which is provided to be rotated on the left and right sides of the freezer door and is configured to be opened and closed by sliding the front and rear of the freezer compartment, and the freezer compartment and the refrigerating compartment are formed side by side with each other as the refrigerator is enlarged. The freezer compartment door and the refrigerating compartment door are divided into so-called side by side types, which are configured to be opened and closed with both end portions pivoted.

The door of the refrigerator may be provided with various convenience devices such as a home bar or a dispenser that can easily take out food stored in the rear of the door without opening the door for the user's convenience. In addition, the freezing compartment or the refrigerating compartment may be provided with a rapid cooling chamber for rapid cooling of food.

And the main body is provided with a cold air generating chamber provided with an evaporator, the cold air flowing into the cold air generating chamber is bent by the air guide in a direction perpendicular to the moving direction is sent out.

However, the air guide caused a problem that the defrosted water does not drain while freezing during the process of converting the cold air of the cold air fan into the guide duct, and required a countermeasure.

An object of the present invention is to provide a refrigerator for preventing freezing of the defrost water discharged through the air guide.

SUMMARY OF THE INVENTION An object of the present invention is to provide a refrigerator in which cold air discharged by a cold air fan is guided to the guide duct while preventing defrost water generated in the cold fan from flowing into the guide duct forming a movement path of the cold air.

Another object of the present invention is to provide a refrigerator in which defrost water generated in the evaporator and the cold fan is introduced into one drain pan.

In order to achieve the above object, the refrigerator according to the present invention includes a main body having a storage compartment therein; A cold air generating chamber provided above the main body, the cold air fan and an evaporator arranged in a horizontal direction; An air guide provided in the cold air generating chamber and formed to be inclined with respect to a blowing direction of the cold air fan, and changing a moving direction of cold air discharged by the cold air fan; And a conducting portion that conducts heat to the air guide to prevent freezing of the defrost water at the surface of the air guide.

And the air guide and the conductive part are made of different materials.

The air guide is made of a conductive material.

The air guide is characterized in that it has a thickness relatively thinner than the thickness of the conductive portion.

The conductive portion is characterized in that the heat transfer coil is provided.

The conducting unit is installed on the lower side of the evaporator is characterized in that the drain pan receiving the defrost water generated in the evaporator.

The air guide is connected to the conductive portion is characterized in that the installation.

The air guide is characterized in that the defrost water hole for discharging the defrost water.

The air guide may be spaced apart in the blowing direction of the cold fan to have an arc shape surrounding the edge of the cold fan.

As described above, the refrigerator according to the present invention has an effect of preventing defrost water freezing in the air guide provided in the cold air generating chamber.

The refrigerator according to the present invention has the effect of blocking the inflow of defrost water into the guide duct and at the same time enabling a stable supply of cold air.

The refrigerator according to the present invention is capable of simultaneously treating the defrost water generated in the evaporator and the cold fan, thereby minimizing the problem caused by the defrost water.

Hereinafter, an embodiment of a refrigerator according to the present invention will be described with reference to the accompanying drawings.

Referring to FIG. 1, a storage compartment 102 is provided inside the main body 100 forming a frame of the refrigerator. The storage compartment 102 is a space in which food to be stored at a low temperature is stored by cold air generated around the evaporator 170 to be described below. A plurality of shelves (not shown) are disposed up and down inside the storage compartment 102, and a drawer-type storage compartment (not shown) is provided below the shelf.

The storage compartment 102 includes a refrigerating compartment 110 and a freezing compartment 120. The refrigerating chamber 110 and the freezing chamber 120 are provided to be separated from each other to form a separate storage space.

The main body 100 is provided with a machine room 130. The machine room 130 is provided above the main body 100, but may be provided below the main body 100 according to design conditions. An accommodation space is formed inside the machine room 130. The machine room 130 is provided with a compressor 132, a condenser 134, an expansion valve (not shown), and a blowing fan 136.

The compressor 132 serves to compress the low temperature low pressure gaseous refrigerant circulating the refrigeration cycle into the high temperature high pressure gaseous refrigerant. The refrigerant passing through the compressor 132 flows into the condenser 134.

The refrigerant passing through the condenser 134 is moved to the expansion valve. The expansion valve has a narrow diameter compared to the diameter of the other portion serves to expand and expand the refrigerant introduced from the condenser 134 under reduced pressure.

A cover member 138 covering the accommodation space is provided at the front of the machine room 130. The cover member 138 is provided with a communication hole 138 ′ allowing external air to enter the machine room 130 or allowing air inside the machine room 130 to come out.

In addition, the main body 100 is provided with a cold air generating chamber 150. The cold air generating chamber 150 is a space in which a configuration for generating cold air to maintain the storage compartment 102 at a low temperature is installed. The cold air generating chamber 150 is formed in a rectangular parallelepiped shape from the front of the main body 100 to the rear. The cold air of the storage chamber 102 is introduced into the front of the cold air generating chamber 150, cooled in the cold air generating chamber 150, and then discharged to the rear of the cold air generating chamber 150. However, according to design conditions, a structure that flows in from the rear of the cold air generating chamber 150 and discharges to the front thereof may be applied. In the present embodiment, the cold air generating chamber 150 is separated from the storage chamber 102 at an upper portion of the main body 100 and provided adjacent to the machine chamber 130.

The cold air generating chamber 150 is provided with a cold air inlet 152 and a cold air outlet 154. The cold air inlet 152 is an inlet through which the cold air of the storage chamber 102 flows into the cold air generating chamber 150, and the cold air outlet 154 is the cold air of the cold air generating chamber 150 into the storage chamber 102. The outlet is discharged to be guided.

The main body 100 is provided with a guide duct 160. The guide duct 160 forms a path for circulating cold air generated from the evaporator 170 to the storage compartment 102. The guide duct 160 communicates with the storage chamber 102 and the cold air generating chamber 150, respectively. In the present embodiment, the guide duct 160 extends long from the cold air generating chamber 150 to the lower portion of the storage chamber 102.

The inlet of the guide duct 160 is one end of the cold air generating chamber 150 outside the installation area of the cold air fan 176 in the vertical direction to prevent the inflow of defrost water generated in the cold air fan 176 to be described below. To be prepared.

The cold air outlet 162 is formed in the guide duct 160. The plurality of cold air outlets 162 penetrate through one surface of the guide duct 160 facing the storage chamber 102. The cold air outlet 162 is a portion for providing the cold air of the guide duct 160 to the storage compartment (102). The cold air outlet 162 is preferably formed in the center of the upper surface of the shelf and the storage compartment 102, or the space between the shelf and the shelf. The cold air generating chamber 150 is provided such that the evaporator 170 and the cold air fan 176 are horizontal to each other.

The evaporator 170 is configured to absorb heat from the surroundings when the liquid evaporates and become a gas, and to rapidly lower the surrounding temperature. The evaporator 170 absorbs heat around as the refrigerant passing through the expansion valve evaporates at a low pressure.

As illustrated in FIGS. 2 and 3, the evaporator 170 has a length h in a direction perpendicular to a direction through which cold air passes, longer than a length w in a direction through which cold air passes. That is, since the cold air generating chamber 150 is formed long in the horizontal direction and cold air flows in or out of the front and rear of the cold air generating chamber 150, the evaporator 170 is perpendicular to the direction in which cold air passes. The length (h) of may be provided longer than the length of the direction (w) through which cold air passes.

The cold fan 176 is a mechanical device that ventilates or cools heat by discharging air while the wing rotates. That is, the cold fan 176 is a device for generating a flow of cold air circulating through the storage chamber 102 and the cold air generating chamber 150.

The motor support is installed and supported by a fan motor 178. The fan motor 178 is provided adjacent to the evaporator 170 at the orifice. The fan motor 178 provides a driving force for operating the cold air fan 176.

A guide plate 180 for changing the direction of the cold air is provided at the corner of the cold air generating chamber 150. The guide plate 180 is provided at an upper side of the orifice.

The guide plate 180 serves to guide the cold air discharged from the cold air fan 176 to the upper portion of the cold air generation chamber 150 to the lower portion of the cold air generation chamber 150 provided with the cold air discharge port 154. The guide plate 180 is formed in an arc shape concave toward the cold air fan 176.

The cold air generating chamber 150 is provided with an air guide 200. The air guide 200 is spaced in the blowing direction of the cold fan 176 is formed in an arc shape to surround the edge of the cold fan 176. The air guide 200 is formed to be inclined downward toward the inlet of the guide duct 160 from one surface of the orifice on which the cold air fan 176 is mounted.

The air guide 200 is formed to be inclined with respect to the blowing direction of the cold air fan 176 to change the movement direction of the cold air discharged by the cold air fan 176. That is, the air guide 200 serves to guide the cold air moved in the direction perpendicular to the longitudinal direction of the cold air generating chamber 150 by the cold air fan 176 to the inlet of the guide duct 160.

The defrost water hole 202 for discharging the defrost water is formed in the lower portion of the air guide 200. The defrost water hole 202 is provided through the air guide 200.

The defrost water hole 202 is a hole for guiding the defrost water descending along the surface of the air guide 200 to the conductive portion 300 to be described below. The defrost water hole 202 may be variously formed in a slit shape along the edge of the air guide 200 according to design conditions.

The air guide 200 has a protrusion rib 208 formed to protrude along the bottom edge of the air guide 200 to prevent defrost water generated in the cold air fan 176 into the guide duct 160. do.

The cold air generating chamber 150 is provided with a conductive portion 300. The conducting unit 300 is provided below the evaporator 170 in the cold air generating chamber 150. The conductive part 300 extends from the evaporator 170 to the lower portion of the cold fan 176. That is, the conductive part 300 extends from the evaporator 170 to a position corresponding to the defrost water hole 202.

Therefore, the conductive part 300 collects the defrost water generated by the cold air fan 176 as well as the defrost water generated by the evaporator 170 and discharges them to the outside.

The air guide 200 is preferably made of a conductive material having a high thermal conductivity. For example, silver, copper, and aluminum may be used as the material of the air guide 200.

The air guide 200 and the conductive part 300 are made of different materials. Of course, the air guide 200 and the conductive part 300 may be made of the same material, but the main purpose of the present invention is to conduct heat generated from the conductive part 300 to the air guide 200 to freeze defrost water. Since it is to prevent, it is preferable to use a metal having a relatively high thermal conductivity of the air guide 200 compared to the conductive portion 300.

The air guide 200 has a thickness relatively thinner than the thickness of the conductive portion 300.

Because, in order to conduct the heat conducted from the conduction unit 300 to the air guide 200 more quickly to the air guide 200, the air guide 200 preferably has a thickness thinner than the conducting unit 300. .

The conductive part 300 is provided with a heat transfer coil 310. The heat transfer coil 310 is disposed on the bottom surface of the conductive portion 300.

The conductive part 300 is installed on the lower side of the evaporator 170, characterized in that the drain pan receiving the defrost water generated in the evaporator 170.

The air guide 200 may be directly connected to the conductive part 300. When the direct connection is installed in this way, the heat generated from the conduction unit 300 is conducted to the air guide 200, thereby effectively preventing freezing of the defrost water.

The air guide 200 may be spaced apart in the blowing direction of the cold air fan 176 to have an arc shape surrounding the edge of the cold air fan 176.

The operation state of the refrigerator according to the present invention configured as described above will be described with reference to the drawings.

Referring to FIG. 1 or FIG. 4, in the main body 100, cold air of the storage chamber 102 is introduced into the cold air generating chamber 150 through the cold air inlet 152. The cold air cooled by the heat exchanger and the evaporator 170 in the cold air generating chamber 150 is introduced into the storage chamber 102 through the cold air discharge port 154 and the guide duct 160 in order.

As described above, the refrigerator according to the present invention performs heat exchange in the cold air generating chamber 150 provided at the upper portion of the main body 100.

The cold air fan 176 sends the cold air moved in the longitudinal direction of the cold air generating chamber 150 vertically in the centrifugal direction of the cold air fan 176, and the air guide 200 is the centrifugal force of the cold air fan 176. It is formed to be inclined with respect to the direction to guide the cold air to the inlet of the guide duct 160.

As described above, the air guide 200 is provided in the centrifugal direction of the cold air fan 176 to guide the cold air discharged from the cold air fan 176 to the guide duct 160 without any resistance.

The defrost water generated in the cold fan 176 and falling in the vertical direction moves to the defrost water hole 202.

The air guide 200 has an arc shape, and in the process of moving the defrost water dropped from the cold air fan 178 to the defrost water hole 202 along the inclined outer circumferential surface of the air guide 200, the cold air fan ( The defrost water may freeze on the surface of the air guide 200 due to the low temperature wind discharged from the 176.

Referring to FIG. 4, when the defrosting water is frozen on the surface of the air guide 200, a plurality of defrosting water is unevenly formed on the upper surface of the air guide 200 and the defrost water is discharged. Freezing may also occur on the opening of the hole 202.

If freezing occurs in the defrosting hole 202, the undischarged defrosting water continues to freeze at the freezing part and grows toward the cold air fan 176, and finally, interferes with the cold air fan 176. Inducement of noise and malfunction may occur, but in the present invention, the conductive part 300 and the air guide 200 are connected and installed to prevent freezing as follows.

The conductive part 300 is supplied with power from the heat transfer coil 310 by a controller (not shown) separately provided to thaw a plurality of defrost water frozen on the upper surface of the air guide 200, and the heat transfer coil 310. In the high temperature heat is generated is conducted to the air guide 200.

The air guide 200 is made of a material having a high thermal conductivity so that the high temperature heat generated from the heat transfer coil 310 can be quickly conducted, so that the heat generated from the heat transfer coil 310 is rapidly indicated by an arrow. It is conducted from the lower side to the upper side of the 200.

Air guide 200 is made of a thickness relatively thinner than the thickness of the conductive portion 300 so that the heat generated from the heat transfer coil 310 is more quickly conducted.

For example, even when the defrost water is frozen in the defrost water hole 202 to block the open defrost water hole 202, the heat generated in the heat transfer coil 310 is illustrated by an arrow through the conduction unit 300. As it is conducted to the air guide 200, the freezing of the defrost water hole 202 is quickly thawed.

When the defrost water is frozen at other positions except for the defrost water hole 202, the defrost water does not have a significant effect on the discharge of the defrost water. However, when the defrost water is formed at the opening of the defrost water hole 202, The discharge is stably performed on the conductive part 300 without being interfered with the discharge of the defrost water.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation in the scope of the appended claims. It will be understood by those skilled in the art that various modifications may be made and equivalents may be resorted to without departing from the scope of the appended claims.

1 is a view showing a refrigerator according to the present invention.

2 is a partial longitudinal sectional view of a cold air generating chamber according to the present invention;

Figure 3 is a perspective view showing a conductive portion coupled to the air guide of the refrigerator according to the present invention.

4 to 5 is an operating state of the refrigerator according to the present invention.

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

100: main body 102: storage compartment

150: cold air generating chamber 170: evaporator

176: cold fan 200: air guide

202: defrost water hole 300: conduction unit

310: electrothermal coil

Claims (9)

A main body having a storage compartment therein; A cold air generating chamber provided in an upper portion of the main body and having a cold air fan and an evaporator arranged in a horizontal direction; An air guide provided in the cold air generating chamber and formed to be inclined with respect to a blowing direction of the cold air fan, and changing a moving direction of cold air discharged by the cold air fan; And And a conducting portion for conducting heat to the air guide to prevent freezing of the defrost water on the surface of the air guide. According to claim 1, And the air guide and the conductive part are made of different materials. According to claim 1, The air guide is a refrigerator, characterized in that made of a conductive material. According to claim 1, And the air guide has a thickness that is relatively thinner than the thickness of the conductive portion. According to claim 1, Refrigerator, characterized in that the conductive coil is provided in the conductive portion. According to claim 1, The conducting unit is a refrigerator, characterized in that the drain pan is installed on the lower side of the evaporator to receive the defrost water generated in the evaporator. According to claim 1, The air guide is a refrigerator, characterized in that connected to the conductive portion is installed. According to claim 1, The air guide is provided with a defrost water hole for discharging the defrost water. According to claim 1, The air guide is characterized in that the refrigerator has a circular arc shape surrounding the edge of the cold fan spaced apart in the blowing direction of the cold fan.

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