KR20010048307A - Drain path in refrigerator - Google Patents

Abstract

PURPOSE: A refrigerator drain system is provided, in which a pressure reduction unit for reducing pressure of the interior of the refrigerator is arranged, to thereby decrease power consumption by preventing the refrigerator door from being unintentionally opened. CONSTITUTION: A refrigerator drain system(30) comprises a water tray positioned beneath an evaporator and which is shaped as a square funnel and has a drain guide port(31a) and an air guide port(31b) arranged at the center and inclined portion of the water tray; a water tray mount section(32) having a drain hole(32a) and an air hole(32b) for insertion of the drain guide port and the air guide port of the water tray, respectively, and which is shaped as a rectangular recess for allowing the bottom portion of the water tray to be mounted onto the rectangular recess; and a water pipe(33) having an upper end branched to a drain pipe(33a) and an air pipe(33b) which are connected to the drain hole and the air hole of the water tray mount section, respectively, and a lower end communicated to a machinery room of the refrigerator.

Description

Drainage in the refrigerator {DRAIN PATH IN REFRIGERATOR}

The present invention relates to a drainage passage of a refrigerator, and more particularly, by installing a decompression structure that reduces the pressure inside the refrigerator in the drainage passage of the refrigerator, so as to prevent the door opening phenomenon due to the internal pressure rise in the refrigerator door opening and closing. It relates to a drain of the refrigerator.

1A and 1B illustrate a perspective view and a cross-sectional side view illustrating an internal and external structure of a general refrigerator in which a freezer compartment for freezing food is positioned at an upper portion and a refrigerating compartment for storing food is located at a lower portion thereof.

In the drawings, 1 is a freezer compartment for storing food, 1a is a freezer compartment, 10 is a refrigerator compartment for storing food, 10a is a refrigerator compartment door, 2 is a barrier separating the freezer compartment and the refrigerator compartment, and 3 is a compressor installed. Machine room.

In FIG. 1B, the freezer compartment 1 is provided with an evaporator 4 which forms cooling air by heat exchange inside the freezer compartment 1, and the air cooled through the evaporator 4 is located at the rear upper portion of the freezer compartment 1. A grill pan 5 is installed to circulate through the discharge port 6 into the freezing chamber 1, and a blower for supplying cold air to the freezing chamber 1 and the refrigerating chamber 10 is provided inside the grill pan 5. A fan 7 is provided, and a freezer compartment suction port 8 through which cold air circulated through the freezer compartment 1 is sucked is installed on the bottom front surface of the freezer compartment 1, and the sucked cold air is provided inside the barrier 2. A freezing chamber cold air passage 9 is provided.

The refrigerating compartment 10 has a refrigerating compartment cold passage 11 through which cold air supplied from the blower fan 7 flows on the rear surface of the barrier 2, and the rear side of the refrigerating compartment 10 is provided. A control box 12 is installed to control the flow state while passing cold air, and a refrigerator compartment discharge port 13 for discharging the cold air into the refrigerating chamber 10 is installed at the front of the control box 12, and a food is provided at the bottom thereof. Shelves for refrigeration of back

In addition, behind the barrier 2, a drainage path 20 for collecting and draining frost and condensate generated by heat exchange in the evaporator 4 is provided at the bottom of the evaporator 4.

2 is an enlarged perspective view of the drainage path 20, which is positioned below the evaporator 4, and is inclined in a square weight shape of the upper and lower straits, and a drip tray 21 having a tubular drainage guide 21a installed in the center thereof. And, the back of the barrier (2) is provided with a drain hole (22a) is inserted into the drain guide port (21a) in the center and is recessed in an intaglio in a rectangular shape and seating part 22 for seating the drip tray 21 and , One end is intimately inserted into the drain hole (22a), the other end is composed of a drip pipe 23 in communication with the machine room (3).

Referring to the cold air circulation structure of the refrigerator having the above configuration as follows.

In FIG. 1B, when a power is applied, a compressor (not shown) is driven to form cooling air by heat exchange of the evaporator 4, and the cooling air is operated by a blower fan 7 installed thereon to operate the centrifugal force due to rotation. It is supplied to the freezing chamber 1 and the refrigerating chamber 10 by the.

In the freezer compartment 1, cold air is supplied through a freezer compartment outlet 6 formed in the grill pan 5, cold air is supplied to a shelf of the freezer compartment 1, and suctioned through a freezer compartment inlet 8 installed at a lower floor. The water is circulated back to the evaporator 4 via the freezing chamber cold air passage 9.

In the refrigerating chamber (10), the cold air having centrifugal force by rotation by the blowing fan (7) is introduced into the control box (12) via the refrigerating chamber cold air passage (11), and the refrigerating chamber discharge port installed at the front side thereof ( 13, cold air is supplied to the refrigerating chamber 10, cold air is supplied to the shelves of the refrigerating chamber 10, and then sucked into the refrigerating chamber suction port (not shown) and circulated to the evaporator 4 again.

On the other hand, since the frost is generated by the heat exchange in the evaporator 4 by the cooling cycle as described above, the drainage path 20 is provided at the rear of the barrier 2 to frost at the bottom of the evaporator 4 through the defrosting process. Collect or drain the granules or condensate, which is described as follows.

In FIG. 2, the drip tray 21 seats on the drip tray seat 22 having the drain guide port 21a inserted into the drain hole 22a and having a recessed concave shape.

The frost pellets or condensate defrosted by the evaporator 4 is inclined inward and is collected in the drip tray 21 of the upper and lower narrow type in which a tubular drainage guide 21a is formed at the center thereof, and the drain hole 22a is disposed. And through the drip pipe 23 is drained to the machine room (3).

However, when using the refrigerator, when the user opens the freezer compartment 1a and enters the stored food quickly and closes it quickly, the cooling air inside the freezer compartment 1 is compressed to rapidly increase the pressure and evenly spread in the freezer compartment 1. Afterwards, when the drip pipe 23 is blocked by frost grains or condensate, the compressed cold air flows into the refrigerating chamber 10 through the refrigerating chamber cold air passage 11 which is the only passage through which pressure transfer can be easily transmitted. The propagation increases the pressure inside the refrigerating chamber 10, so that the refrigerating chamber door 10a is opened. In the above phenomenon, the freezing chamber door 1a is opened through the same process as described above even when the refrigerator compartment door 10a is quickly closed.

Thus, if the user does not recognize that such a situation has occurred, power is unnecessarily consumed because the cold air continuously leaks for a long time through the gap, and the stored food is corrupted due to an increase in the temperature inside the refrigerator. As a result, the life of the refrigerator was shortened.

The present invention has been made to solve the problems of the prior art as described above, an object of the present invention is to prevent the door opening phenomenon by preventing the pressure inside the refrigerator to rise even if the freezer door or the freezer door of the refrigerator closes quickly. To provide a drain for the refrigerator.

Figure 1a is a perspective view showing the internal and external structure of a typical refrigerator.

Figure 1b is a side cross-sectional view showing the internal structure of a typical refrigerator.

2 is a partially cutaway perspective view of a drainage path of a conventional refrigerator.

Figure 3a is a partially cutaway perspective view of the drainage path of the refrigerator according to the present invention.

3B is an enlarged sectional view of a portion “A” of FIG. 3A;

Figure 3c is an exploded perspective view of the cold air opening and closing door shown in Figure 3b.

<Code Description of Major Parts of Drawings>

30: drainage 31: drip tray

31a: drain guide 31b: vent guide

32: drip tray seat 32a: drain hole

32b: Aeration hole 33: Drip pipe

33a: drain pipe 33b: vent pipe

34: cold air opening and closing 34a: opening and closing board

34b: support 34c: fixing piece

In order to achieve the above object, the present invention is a refrigerator for forming the cooling air by the machine room installed in the lower portion and the evaporator provided in the upper portion to supply cold air to the freezer compartment and the refrigerating compartment divided into a barrier, the lower portion of the It is inclined in the shape of a funnel of the Sangkwang Strait, and in the center and one side of the inclined portion, a drip tray in which a tubular drainage guide and a ventilation guide are respectively installed, and a drainage hole into which the drainage guide and the ventilation guide are respectively inserted from the rear of the barrier. A vent hole is drilled, and a drip tray seating portion is formed in an intaglio form so that the bottom part of the drip tray is seated, and one end is branched into the drain pipe and the vent pipe, and is connected to the drain hole and the vent hole, respectively, and the other end is the drip pipe connected to the machine room. Characterized in that configured.

It is preferable that the inside of the vent pipe includes a cold air opening and closing plate composed of a circular ring-shaped support that opens and closes the inner diameter at a predetermined pressure at an opening and closing plate having a flexible shape in a disc shape. .

In addition, preferably the cold air switch is provided with a fixing piece for fixing the opening and closing plate on the lower side of the opening and closing plate.

Hereinafter, preferred embodiments of the present invention will be described based on the accompanying drawings.

The drainage path 30 is a refrigerator that forms cooling air by a machine room 3 installed at a lower portion and an evaporator 4 installed at an upper portion thereof to supply cold air to the freezer compartment 1 and the refrigerating compartment 10 separated by a barrier 2. In the above, the frost generated in the evaporator (4) is removed through a defrosting process, and is a component for collecting and discharging frost grains or condensate.

3A is a partially cutaway perspective view of the drainage passage 30 according to the present invention, which is positioned below the evaporator 4 and is inclined in a square funnel shape of a light emitting strait, each of which has a tubular drainage guide in the center and one side of the slope. 31a and a drip tray 31 in which the vent guide 31b is installed, and a drain hole 32a into which the drain guide 31a and the vent guide 31b are inserted, respectively, from the rear of the barrier 2. Aeration hole (32b) is installed and the bottom receiving portion 32 formed in a rectangular intaglio so that the bottom portion of the drip tray (31), and one side end located in the upper portion is branched into the drain pipe (33a) and the vent pipe (33b) The other end is in close contact with the drain hole (32a) and the vent hole (32b), respectively, the lower end is composed of a drip pipe 33 in communication with the machine room (3).

3B is an enlarged cross-sectional view of the cold air opening and closing opening 34 installed in the vent pipe 33b, and FIG. 3C is an exploded perspective view, and the drainage passage 30 is provided with an opening and closing plate 34a having a disc shape. And open and close the inner diameter at a predetermined pressure, and preferably include a cold air opening / closing portion 34 formed of a circular ring-shaped support 34b for fixing and supporting the outer periphery of the opening and closing plate 34a.

In addition, the cold air switch 34 is preferably provided with a fixing piece 34c for fixing the opening and closing plate 34a on the lower side of the opening and closing plate 34a.

Looking at the action on the drainage channel of the refrigerator according to the present invention having the configuration as described above are as follows.

As in the related art, when power is applied, a compressor (not shown) installed in the machine room 3 is driven to form cooling air by heat exchange of the evaporator 4, and the cooling air is provided at an upper blower fan 7. ) Is supplied to the freezing chamber 1 and the refrigerating chamber 10 by centrifugal force by rotation. In addition, since the frost is generated in the evaporator 4 by the heat exchange resulting from the cooling cycle, the drainage passage 30 is provided at the rear of the barrier 2 so that the frost pellets are formed at the bottom of the evaporator 4 through a defrosting process. Or to collect and drain the condensate, which will be described as follows.

In FIG. 3A, the drip tray seat having a recessed recessed shape such that the drain guide 31a and the vent guide 31b of the drip tray 31 are inserted into the drain hole 32a and the vent hole 32b, respectively. The inclined portion of the drip tray 31 is seated on the (32). Frost particles or condensed water generated in the evaporator 4 is received by the inner inclined portion of the upper and lower straits of the drip tray 31 and collected into a tubular drainage guide 31a positioned at the center, and the drain hole 32a and A drain line is formed along the drain pipe 33a of the drip pipe 33 to the machine room 3.

The vent 32b is connected to the vent pipe 33b of the drip pipe 33 so that the vent guide 31b and the machine room 3 form a vent line separately from the drain line.

On the other hand, the case where the cold air opening and closing opening 34 is provided in the inside of the vent pipe 33b.

3b and 3c, the opening and closing plate 34a having a disc-like flexibility as described above is normally closed in close contact with the support ring 34b of a circular ring provided on the upper portion, the opening and closing when a certain pressure or more is applied The plate 34a is bent downward to open the inner diameter portion and returns to its original position when the applied pressure is reduced. The circular ring-shaped support 34b fixes and supports an outer periphery at an upper portion of the opening and closing plate 34a, and the fixing piece 34c supports the opening and closing plate 34a at a lower side of the opening and closing plate 34a. Fix it.

Thus, when using the refrigerator equipped with the drainage passage 30 according to the present invention, if the user opens the freezer compartment door 1a and enters the stored food quickly and closes it quickly, the cooling air inside the freezer compartment 1 is compressed and the freezer compartment ( 1) through the vent hole (32b) and the vent pipe (33b) through the vent guide hole (31b) of the drip tray (31), which is evenly spread and relatively easy to transfer pressure, and the ventilation line is compressed Cold air is delivered to the machine room (3).

On the other hand, when the cold air opening 34 is provided in the vent pipe 33b, the opening and closing plate 34a is deformed by the pressure of the compressed cold air to form a gap, and the compressed cold air is opened in the machine room 3. Since the pressure to deform the opening and closing plate 34a is reduced after the predetermined amount of cold air is discharged, the opening and closing plate 34a is returned to its original shape. To prevent cold air from leaking.

Therefore, since the refrigerator does not propagate through the refrigerator compartment cold air passage 11 unlike the conventional refrigerator having the drainage passage 30 according to the present invention, the refrigerator compartment door 10a even if the refrigerator compartment door 1a is quickly closed. ) Does not open. The phenomenon is that the freezer compartment 1a is not opened through the same process as described above even when the refrigerator compartment door 10a is quickly closed.

As described above, the drainage channel according to the present invention has a pressure reducing structure that reduces the pressure inside the refrigerator by separately installing a ventilation line in addition to the conventional drainage line, thereby preventing the door opening phenomenon even if the door of the refrigerator is closed quickly. Unlike the conventional bar, the refrigerator door is opened to prevent power consumption due to prolonged leakage of cold air, and the food stored in the refrigerator is prevented from being decayed due to an increase in the internal temperature of the refrigerator.

Claims (3)

In the refrigerator to form the cooling air by the machine room installed in the lower portion and the evaporator installed in the upper portion to supply cold air to the freezer compartment and the refrigerating compartment divided by a barrier, Located in the lower part of the evaporator and inclined in the shape of a funnel of the Sangkwang Strait, the center and one side of the inclined portion of the drip tray is provided with a tubular drain guide and vent guide, respectively, the drain guide and vent guide from the rear of the barrier A drain hole and a vent hole, each of which is inserted into a sphere, is drilled, and a drip tray seating portion is formed in an intaglio form so that the bottom portion of the drip tray is seated. A drainage channel of the refrigerator, characterized by consisting of a drip pipe communicating with the machine room. According to claim 1, wherein the inside of the exhaust pipe is a cold air opening and closing plate consisting of a circular ring-shaped support for opening and closing the inner diameter at a predetermined pressure of the opening and closing plate having flexibility in the shape of a disk, Drainage of the refrigerator, characterized in that it is included. The drain of the refrigerator of claim 1, wherein the cold air switch includes a fixing piece for fixing the opening and closing plate at a lower side of the opening and closing plate.