KR100418708B1 - Refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator having an evaporator and a recovery duct member for guiding air in a cooling chamber to the evaporator, wherein the recovery duct member includes at least one main air suction port; A main air guide unit forming a main air flow path for guiding air in the cooling chamber sucked through the main air suction port to the evaporator; An auxiliary air suction hole spaced apart from the main air suction hole; It characterized in that it comprises an auxiliary air guide for guiding the air introduced through the auxiliary air intake to at least a portion of the main air flow path. As a result, frost can be prevented from forming on the front plate of the recovery duct member and the front plate of the recovery duct member that are disposed in front of the evaporator due to the temperature difference in the refrigerator.

Description

Refrigerator {REFRIGERATOR}

The present invention relates to a refrigerator, and more particularly, to a refrigerator which can suppress frost on the front plate of the recovery duct member disposed in front of the evaporator and the front plate of the recovery duct member due to the temperature difference in the refrigerator. It is about.

In the conventional refrigerator, as shown in FIG. 1, a main body 1 in which a plurality of cooling chambers 2 are formed, and a front opening of each cooling chamber 2 are respectively installed in front of the main body 1. It has the cooling chamber door 4 which rotates and opens.

The refrigerator also has a cooling system consisting of a compressor, a condenser and an evaporator to supply cold air to each cooling chamber. The compressor receives power from an external power source to compress the refrigerant, and the refrigerant compressed in the compressor is condensed in the condenser, and the evaporator generates cold air by evaporating the refrigerant condensed in the condenser. The cold air generated in the evaporator is supplied to each cooling chamber by the blowing fan.

In order to guide the cold air generated by the evaporator and blown by the blowing fan to each cooling chamber, a cold air duct is provided in the rear wall rear region of the cooling chamber, and is guided to the cooling chamber by the cold air duct to circulate the cooling chamber. A cold air return duct is disposed below the cold air duct to guide the gas to the evaporator.

By such a configuration, the cold air generated in the evaporator is blown by the blower fan into the cold air flow path of the cold air duct, and then guided through the cold air outlet through the cold air outlet formed on the cold air duct plate to circulate the inside of the cold room, The cold air return duct is repeated through the cold air inlet formed on the surface to return to the evaporator.

By the way, in such a conventional refrigerator, the temperature of the front plate of the cold return duct, which is the plate surface exposed to the inside, is low while the cold return duct is disposed in front of the evaporator having a very low temperature, while the temperature in the refrigerator is the cold return duct. Since the temperature is higher than the temperature of the front panel, there is a problem that frost occurs in the front panel of the cold air return duct due to the temperature difference.

Furthermore, if the outside air of high temperature is penetrated into the air due to frequent door opening and closing, the temperature inside the air can be lowered. In this case, the temperature difference between the front plate of the cold air return duct and the inside of the air increases, so There is a problem that can accelerate sexual attachment.

Accordingly, an object of the present invention is to provide a refrigerator that can suppress frost on the front plate of the recovery duct member and the front plate of the recovery duct member disposed in front of the evaporator due to the temperature difference in the refrigerator.

1 is a perspective view of a door opening of a conventional refrigerator,

Figure 2 is a major cutaway view of the recovery duct member installation area according to the first embodiment of the present invention,

3 is a rear perspective view of the recovery duct member according to the first embodiment of the present invention;

4 is a schematic cross-sectional view taken along line IV-IV according to FIG. 2;

5 is a cutaway view of the main portion of the recovery duct member installation area according to the second embodiment of the present invention;

6 is a rear perspective view of the recovery duct member according to the second embodiment of the present invention.

* Explanation of symbols for the main parts of the drawings

2: cooling chamber 4: door

20: cold air discharge duct 30: recovery duct member

33: main air intake 34: air guide rib

37: auxiliary air intake 40: auxiliary air guide

41: first guide section 42: second guide section

The object of the present invention is a refrigerator having an evaporator and a recovery duct member for guiding air in a cooling chamber to the evaporator, the recovery duct member comprising: at least one main air suction port; A main air guide unit forming a main air flow path for guiding air in the cooling chamber sucked through the main air suction port to the evaporator; An auxiliary air suction hole spaced apart from the main air suction hole; It is achieved by a refrigerator characterized in that it comprises an auxiliary air guide portion for guiding the air introduced through the auxiliary air intake to at least a portion of the main air flow path.

Here, the main air guide portion, protrudes from the rear surface of the recovery duct member toward the rear wall surface of the cooling chamber in a vertical space with a predetermined spacing on the rear surface of the recovery duct member, the protruding end of the cooling chamber It is preferably at least one pair of air guide ribs which are in contact with the rear wall to form the main air passage.

In addition, the recovery duct member has a front housing part in which the auxiliary air inlet is formed, and a rear housing part partially coupled to the rear of the front housing part with a predetermined spaced space between the front housing part therebetween, The auxiliary air guide unit may include a first guide section communicating with a predetermined spaced space from the auxiliary air inlet to the predetermined space from the front and rear housing parts, and extending from the first guide section to supply air in the first guide section to the main air. It may be configured to include a second guide section leading to the flow path.

In addition, it is preferable that at least one through hole communicating with the second guide section is formed on the plate surface of the air guide rib.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the present invention, the same reference numerals and names will be used for the same configuration as in FIG.

Figure 2 is a cutaway view of the main portion of the recovery duct member installation area according to the first embodiment of the present invention, Figure 3 is a rear perspective view of the recovery duct member according to the first embodiment of the present invention, Figure 4 is a It is a schematic sectional drawing along the IV-IV line. As shown in these figures, in the refrigerator, a pair of cooling chambers 2 are formed in a rectangular cylindrical body 1, and the front openings of the respective cooling chambers 2 are rotated in front of the main body 1. The cooling chamber door 4 which opens and closes is provided.

In the cooling chamber 2, a plurality of shelves 7 and a drawer 8 for storing food are arranged in parallel in the horizontal direction so as to partition each cooling chamber 2 up and down, and each cooling chamber door 4 A plurality of door guards 6, which can accommodate parallel flow and the like, are attached to the inner side of the.

This refrigerator has a cooling system composed of a compressor, a condenser and an evaporator 13 to supply cold air to each cooling chamber 2. The compressor receives power from an external power source to compress the refrigerant, and the refrigerant compressed in the compressor is condensed in the condenser. In the evaporator 13 described later, the refrigerant condensed in the condenser generates cold air. The cold air generated by the evaporator 13 is supplied to each cooling chamber 2 by the blower fan 12 mentioned later.

In addition, a cold air discharge duct 20 is provided in the rear region of the cooling chamber 2 to guide the cold air generated by the evaporator 13 and blown by the blowing fan 12 to the cooling chamber 2, and discharges cold air. The rear wall surface of the cooling chamber 2 is guided to the cooling chamber 2 by the cold air discharge duct 20 at the lower portion of the duct 20 to guide the cold air circulated through the cooling chamber 2 back to the evaporator 13. A recovery duct member 30 is provided to form a predetermined spaced space therebetween.

In addition, an evaporator accommodating part 11 recessed from the rear wall plate surface of the cooling chamber 2 and accommodating the evaporator 13 is formed at the rear of the recovery duct member 30, and above the evaporator accommodating part 11. The blowing fan 12 which blows cold air from the evaporator 13 to the cold air discharge duct 20 is provided.

The recovery duct member 30 is provided at both sides of the upper region and is provided along the lengthwise direction of the main air intake 33 through which the cool air in the cooling chamber 2 flows, and below the main air intake 33. 33 is spaced apart from the main air inlet 33 between the main air guide portion for guiding the cold air in the cooling chamber 2 sucked through the 33 to the evaporator 13 and both main air intakes 33. An auxiliary air inlet 37 through which cold air flows into the auxiliary air inlet 37 and an auxiliary air guide unit 40 for guiding air introduced through the auxiliary air intake 37 to the main air passage 35.

The main air intakes 33 are provided in pairs through the plate surfaces on both sides of the upper region of the recovery duct member 30 so that cold air in the cooling chamber 2 can be introduced therein, and a pair of main air intakes ( 33 is spaced apart so that when the recovery duct member 30 is disposed in front of the evaporator 13, the evaporator 13 can be located between the two main air intakes 33 of the recovery duct member 30. It is formed in the upper region.

The main air guide portion is provided with air guide ribs 34 protruding from the rear surface of the recovery duct member 30 toward the rear wall surface of the cooling chamber 2, and the air guide ribs 34 each main air intake opening 33. A pair is formed in the lower side in parallel to each other along the up-down direction of the evaporator 13.

The protruding end of the air guide rib 34 is in contact with the rear wall surface of the cooling chamber 2 when the recovery duct member 30 is disposed in front of the evaporator 13 so that the evaporator accommodating portion 11 is interposed therebetween. (11) A pair of main air passages 35 are formed on both sides.

The main air passage 35 is formed to communicate with the main air intake 33 at the lower side of the main air intake 33, and the cold air in the cooling chamber 2 passing through the main air intake 33 is lower than the evaporator 13. Guide to the area, one side of the air guide rib 34 exposed to the main air flow path 35, so that the cold air from the second guide section 42 to be described later flows into the main air flow path (35). The through hole 36 formed in communication with one side of the second guide section 42 is formed.

The auxiliary air intake port 37 may include the main air intake port so that the cool air of the cooling chamber 2 may be introduced separately from the main air intake port 33 in which cold air is introduced into the cooling chamber 2 and communicated with the main air passage 35. 33) is spaced apart from the front housing 31 of the recovery duct member 30, and is formed in communication with the auxiliary air guide 40 to be described later.

The auxiliary air guide part 40 is formed to communicate with the auxiliary air inlet 37 at the rear of the auxiliary air inlet 37 so that the cold air in the cooling chamber 2 introduced through the auxiliary air inlet 37 is introduced. It has a first guide section 41, and a second guide section 42 for guiding the cold air introduced into the first guide section 41 to the main air passage (35).

The first guide section 41 is the number of times that is partially coupled to the rear of the front housing 31 and the front housing 31 of the recovery duct member 30, the auxiliary air suction hole 37 is formed The rear housing 32 of the duct member 30 is formed as a space formed.

The first guide section 41 may include a rear housing partially coupled to correspond to a partial region of the front housing 31 in which the auxiliary air intake 37 is formed and the front housing 31 in which the auxiliary air intake 37 is formed. It is formed in a limited space corresponding to the position where the auxiliary air inlet 37 is formed by the space between the 32, and communicates with the inside of the chamber through the auxiliary air inlet 37 in the front so that the cold air in the cooling chamber (2) auxiliary air inlet Inflow through 37.

The second guide section 42 extends from the first guide section 41 to the main air flow passage 35, so that one side of the second guide section 42 communicates with the first guide section 41. And the other side of the second guide section 42 is formed in communication with the through hole 36 of the air guide rib 34 forming the main air flow passage 35, and the first guide section through the auxiliary air intake 37. (41) guides the cold air introduced into the main air passage (35) through the through hole (36) of the air guide rib (34).

As a result, the cold air that circulates in the inside of the refrigerator and the temperature thereof rises, and the auxiliary air guide unit 40 is provided through the auxiliary air intake port 37 formed in the recovery duct member 30 lower than the temperature of the interior of the evaporator 13. The cold air introduced into the first guide section 41 and introduced into the first guide section 41 is guided to the main air passage 35 by the second guide section 42. That is, since the air is disposed in front of the evaporator 13 rather than the inside of the high temperature chamber, the auxiliary air guide unit 40 circulates the inside of the chamber so that frost does not form on the front plate of the recovery duct member 30 having a low temperature. The elevated air is guided to the main air passage (35).

By this configuration, the cold air generated in the evaporator 13 is blown by the blower fan 12 into the cold air flow path of the cold air discharge duct 20, and then cooled by the cold air discharge port 21 of the cold air discharge duct 20. After entering the chamber 2 and circulating the cooling chamber 2, the cold air enters the main air passage 35 through the main air inlet 33 and moves downward along the main air passage 35 to evaporate. (13) Guided to the lower region where the cold air is returned to the evaporator (13).

At this time, some of the cold air flows into the first guide section 41 through the auxiliary air inlet 37 spaced apart between the two main air intakes 33, the cold air introduced into the first guide section 41, the first It moves along the second guide section 42 communicating with the guide section 41 and enters the main air passage 35 through the through hole 36 of the air guide rib 34 communicating with the main air passage 35. do.

The cold air that has moved the main air flow passage 35 through the main air intake 33, and the cold air that has flowed along the second guide section 42 by flowing into the first guide section 41 through the suction of auxiliary air The through hole 36 communicated with the furnace 35 meets in the upper region of the main air passage 35 and moves downward toward the main air passage 35 to return to the evaporator 13.

On the other hand, in the above-described embodiment, the cold air moving to the second guide section 42 is introduced into the main air passage 35, the cold air flowing through the main air suction port 33 to move the main air passage 35 In order to be able to move along the lower direction of the main air passage (35) together, one side of the second guide section 42 and the air guide rib to form the main air passage 35 so that the main air passage (35) is in communication Although the through hole 36 is formed on the side surface of FIG. 34, FIG. 5 and FIG. 6 provide an extension portion extending from the second guide section 42a to the lower region of the main air intake port 33a. By allowing the cold air introduced through the auxiliary air inlet 37a to move the second guide section 42a to meet the cold air introduced through the main air inlet 33a in the lower region of the main air intake 33a. have.

As such, when the cold air in the cooling chamber circulates in the cooling chamber and the cold air having a high temperature returns to the evaporator, the cold air in the cooling chamber flows through the main air intake port and returns to the evaporator along the main air flow path. Circulating through the cold air, and the temperature of the cold air flows into the first guide section of the auxiliary air guide through the auxiliary air inlet provided separately from the main air inlet, and enters the main air flow path through the second guide section. It is possible to suppress frost on the front plate of the recovery duct member having a lower temperature than the inside of the refrigerator.

As described above, according to the present invention, there is provided a refrigerator which can suppress frost on the front plate of the recovery duct member and the front plate of the recovery duct member disposed in front of the evaporator due to the temperature difference in the refrigerator. can do.

Claims (4)

A refrigerator having an evaporator and a recovery duct member for guiding air in a cooling chamber to the evaporator, The recovery duct member, At least one main air intake; A main air guide unit forming a main air flow path for guiding air in the cooling chamber sucked through the main air suction port to the evaporator; An auxiliary air suction hole spaced apart from the main air suction hole; And an auxiliary air guide unit for guiding air introduced through the auxiliary air intake port to at least a portion of the main air passage. The method of claim 1, The main air guide unit, Protruding from the rear surface of the recovery duct member toward the rear wall surface of the cooling chamber in a vertical space with a predetermined spacing on the rear surface of the recovery duct member, the protruding end is in contact with the rear wall surface of the cooling chamber to the main air And at least one pair of air guide ribs forming a flow path. The method of claim 2, The recovery duct member, A front housing part in which the auxiliary air inlet is formed, and a rear housing part partially coupled to the rear of the front housing part with a predetermined spaced distance from the front housing part interposed therebetween, The auxiliary air guide unit may include a first guide section communicating with a predetermined spaced space from the auxiliary air inlet to the predetermined space from the front and rear housing parts, and extending from the first guide section to supply air in the first guide section to the main air. A refrigerator comprising a second guide section for guiding the flow path. The method of claim 3, And at least one through-hole formed in the plate surface of the air guide rib communicating with the second guide section.