KR20000006487U - Refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator, and an object thereof is to improve the internal wound constituting the refrigerating chamber and to easily collect and discharge the evaporator assembly and the defrost water generated therein.

The refrigerator according to the present invention has a discharge duct 330 having a plurality of stages of cold air outlet 333 guiding cold air discharge symmetrically about the evaporator 310 provided in the rear wall center of the refrigerating chamber 120 and a suction duct for guiding air suction. 340, the support 360 supporting both lower ends of the evaporator 310 and the drain water tank 370 in which the defrost water is collected are integrally formed in the inner phase 121 of the refrigerating chamber 120. Therefore, the evaporator 310 can be easily assembled and the defrost water can be easily collected, and the temperature distribution does not occur by uniformly distributing the cold air through the cold air outlet 333 of the multi-stage without any means. .

Description

Refrigerator

The present invention relates to a refrigerator, and more particularly, to an evaporator support structure of a refrigerating compartment cold air supply device that sucks refrigerating compartment air into a cold compartment and supplies it back to the refrigerating compartment and a drain structure in which defrost water is collected.

The refrigerator is generally configured to supply the cold air generated from the evaporator of the refrigeration cycle to the freezer compartment and the refrigerating compartment to maintain the freshness of various foods for a long time, as shown in FIG. 1, in the cabinet 1 forming the outer body. A freezer compartment (2) for storing frozen foods and a refrigerating compartment (3) for storing refrigerated foods are partitioned by an intermediate partition (9). The freezer compartment (2) and the refrigerating compartment (3) are opened and closed. The doors 4 and 5 are hingedly coupled to the front surface of the cabinet 1.

In the rear of the freezing chamber 2, a separate cooling chamber 6 is formed to generate cold air and to supply the freezing chamber 2 and the refrigerating chamber 3. It includes a circulation fan 6b for introducing air from the evaporator 6a, the freezing chamber 2 and the refrigerating chamber 3 into the evaporator 6a and forcibly blowing the generated cold air. And freezing chamber duct 7 and refrigerating chamber duct 8 in which cold air outlet holes 7a and 8a are arranged to guide the cold air to the freezing chamber 2 and the refrigerating chamber 3 are set up on the rear side, Inside the partition 9, return ducts 9a and 9b are formed, which guide the air from the freezing chamber 2 and the refrigerating chamber 3, which are sucked by the circulation fan 6b, to the evaporator 6a.

In the freezing chamber 2 and the refrigerating chamber 3, shelves 2a and 3a are provided in the horizontal direction so as to accommodate and store food, respectively. Since the internal space is larger than the freezer compartment 1 in the refrigerating compartment 3, the shelf 3a is provided in multiple stages, and a separate vegetable box 3b for storing vegetables and the like containing moisture therein is provided.

When the circulating fan 6b is operated in the refrigerator configured as described above, air in the freezing compartment 2 and the refrigerating compartment 3 flows into the lower part of the evaporator 6a through the return duct 9, which passes through the evaporator 6a. The air is cooled and then forcedly blown into the freezing chamber 2 and the refrigerating chamber 3 through the freezing chamber duct 7 and the refrigerating chamber duct 8. Accordingly, the foods stored in the freezer compartment 2 and the refrigerating compartment 3 are stored in the frozen and refrigerated state, respectively.

However, in the conventional refrigerator, since the cold air is forcedly blown by one evaporator 6a and the circulation fan 6b provided at the rear of the freezer compartment 2, the cold air is not evenly supplied to the refrigerating compartment 3 having a relatively large internal volume. That is, the refrigerating chamber (3) is supplied with cold air through the refrigerating chamber duct (8) installed on the rear wall, there is a disadvantage that the forced blowing force of the circulation fan 6 is not uniformly supplied to the entire refrigerating chamber (3).

In order to solve this problem, recently, an independent cooling refrigerator has been proposed to maintain an optimal state for each food storage type by installing separate evaporators in a freezer compartment and a refrigerator compartment, and FIG. 2 schematically illustrates such a refrigerator structure. It is shown in cross section.

In the independent cooling refrigerators, cold air supply devices 30 and 40 are separately formed at the rear of the freezing compartment 10 and the rear of the refrigerating compartment 20, respectively. The freezer compartment 10 is provided with an evaporator 31 and a blower fan 32 in the cold air supply device 30 to suck the air from the freezer compartment 10 into the evaporator 31 and pass the cold air to the freezer compartment 10. Forced air again. The cold air supply device 40 of the refrigerating chamber 20 is formed on the upper side of the inner phase 22. Here, the evaporator 41 which generates cold air and the blower fan 42 which blows the cold air to the front side are also provided on the upper side of the evaporator 41. Installed in The evaporator 41 is firmly fixed to the upper side of the inner phase 22 of the refrigerating chamber 20 by forcibly coupling the refrigerant pipe 41a to the fixed clamp 23 provided in the rear wall inner image 22 of the refrigerating chamber 20. In addition, the evaporator cover 41b covering the front part of the evaporator 41 has a suction port 43 through which the refrigerating chamber 20 air is sucked and a discharge port 44 through which cold air is discharged, and the cold air is properly applied to the entire refrigerating chamber 20. The cold air distribution duct 45 in which the cold air discharge ports 46 are arranged up and down so as to guide the distribution is installed in the center of the rear wall of the inner wall 22. Inside the cold air distribution duct 45 is a rotary blade 47 is rotated by a separate motor. In addition, the lower part of the evaporator 41 is provided with a drain tank 24 for collecting the defrost water and discharging it to the outside, which is integrally formed on the inner phase 22 adjacent to the lower part of the evaporator 41, and is separately formed on the front side. It is comprised so that the guide 25 may be provided and the defrost water falling from the evaporator 41 may be guided to the drain water tank 24 side. A drain hose 26 is coupled to the drain tank 24 so that the defrost water is discharged to the outside.

When the blowing fan 32 and the rotary blade 47 of the refrigerating compartment 20 are rotated in the independent cooling refrigerator configured as described above, air in the refrigerating compartment 20 is introduced into the lower part of the evaporator 41 through the suction port 43. In addition, the cold air generated while passing is evenly supplied to the refrigerating chamber 20 through the discharge port 44 and the cold air distribution duct 45 by the forced blowing force of the blowing fan 32. That is, some of the cold air is discharged to the upper side of the refrigerating chamber 20 through the discharge port 44, and the cold air is uniformly discharged to the entire refrigerating chamber 20 through the cold air discharge port 46. In particular, by driving the rotary blade 47 built in the cold air distribution duct 45, evenly distributed cold air in every corner of the refrigerating chamber 20, rotates so as not to escape the cold air even if the door 21 is opened to intercept cold air The refrigerating chamber 20 temperature is kept constant. Dehumidification water generated in the evaporator 41 due to the inflow of wet air is guided to the drain tank 24 by the guide 25 and is discharged to the outside through the drain hose 26.

However, these independent cooling refrigerators have the following problems. First, the cold air supply device 40 of the refrigerating chamber 20 is formed with the discharge port 44 and the suction port 43 adjacent to the front side of the evaporator 41, so that the discharge port immediately flows in the state where the discharged cold air is not heat-exchanged. There is a problem that the case is re-suction to 43 to reduce the heat exchange efficiency of the refrigeration cycle.

In addition, a separate fixing clamp 23 for fixing the evaporator 41 and a separate guide 25 for collecting the defrost water are required, and the rear wall surface of the refrigerating chamber 20 for the constant temperature cooling of the refrigerating chamber 20 is performed. By installing a separate cold air distribution duct 45 in which the rotary blade 47 is built, not only the manufacturing cost is increased but also the power consumption rate due to the driving of the rotary blade 47 is increased.

The present invention is to solve this problem, the main purpose of the present invention is to install the discharge duct formed in multiple stages of the cold air outlet symmetrically around the evaporator provided in the center of the rear wall of the inside of the refrigerator compartment, the air inlet is formed at the top of the refrigerator compartment The suction duct which guides the air to the lower part of the evaporator is also symmetrically formed at both ends of the evaporator, so that the cold air distribution is uniform throughout the refrigerating chamber without any means, so that temperature deviation does not occur according to the position, and the refrigerator improves heat exchange efficiency of the refrigeration cycle. To provide.

And a secondary object of the present invention is to form a drain tank integrally to accommodate the entire bottom of the evaporator on the inside of the refrigerating chamber spaced a predetermined distance from the bottom of the evaporator, by supporting the evaporator bottom both sides and guide the defrost water to the drain tank side, It is to provide a refrigerator that can be easily installed without a separate member.

1 is a side cross-sectional view schematically showing a conventional refrigerator.

Figure 2 is a side cross-sectional view showing the structure of another conventional refrigerator.

Figure 3 is a side cross-sectional view schematically showing the overall structure of the refrigerator according to the present invention.

Figure 4 schematically shows a refrigerator compartment cold air supply device of the refrigerator according to the present invention.

FIG. 5 is a cross-sectional view taken along the line AA of FIG. 4, showing an evaporator support structure and a drain bath.

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

120. Refrigerating chamber 121. Inner box 300. Cold supply device

310 .. Evaporator 320. Fan 330. Discharge duct

333..Cool air outlet 340.Suction duct 343.Suction

350. Evaporator cover 360. Support 370. Drain water tank

The present invention for achieving the above object is in the refrigerator provided with a cold air supply unit with a built-in evaporator and a fan on the center to provide cold air to the refrigerating chamber provided on the rear wall surface of the inside of the refrigerating compartment, the compartment is divided into a freezer compartment and a refrigerating compartment. ,

The cold air supply device has an upper end communicating with the upper part of the evaporator and extending downward along the side of the evaporator to discharge and guide the cold air generated in the evaporator to the refrigerating chamber, the lower part communicating with the lower part of the evaporator, and the upper part extending upward along the discharge duct to allow the refrigerator air. Suction duct to guide the suction to the evaporator, a drain tank provided in the refrigerating chamber to accommodate the entire lower end of the evaporator, provided to protrude in the refrigerating chamber to support both sides of the bottom of the evaporator, and guide the defrost water falling from the evaporator to the drain tank. It characterized in that it comprises a support to be.

Hereinafter, one preferred embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a side cross-sectional view showing the overall structure of the independent cooling refrigerator according to the present invention, Figures 4 and 5 is a front view schematically showing the structure of the refrigerator compartment of the refrigerator according to the present invention and a cross-sectional view showing the evaporator support structure and the drain tank. to be.

As the independent cooling refrigerator according to the present invention as shown in these, the freezer compartment 110 for storing the frozen food and the refrigerating chamber 120 for storing the refrigerated food is formed in the cabinet 100 forming the appearance, which is It is provided to be partitioned vertically by the intermediate partition 150. The cabinet 100 has a urethane foam liquid formed between an inner wound 111 of the freezer compartment 110, an inner wound 121 of the refrigerating chamber 120, and an outer wound 190 of a steel material, an inner wound 111, 121, and an outer wound 190 made of a plastic material. It is made of a heat insulating wall 180 formed by injection. The freezer compartment 110 and the refrigerating compartment 120 are provided with a multi-stage shelf 160 in a horizontal direction so that food can be stored and stored, and the vegetable box 170 is provided in a lower side of the refrigerating compartment 120. The doors 130 and 140 open and close the freezing chamber 110 and the refrigerating chamber 120 to the cabinet 100 in a rotatable manner.

And in the rear of the freezing chamber 110 and the refrigerating chamber 120, the cold air supply device (200,300) for generating and supplying the cold air is configured separately, the detailed structure thereof is as follows.

First, the cold air supply device 200 for the freezer compartment is installed on the rear wall surface of the freezer compartment 110, as shown in FIG. 3, which is provided at the center of the upper side of the evaporator 210 and the evaporator 210 to generate cold air. It consists of a circulating fan 220 and the motor 230, the evaporator cover 240 for covering them to force the blown cold air. The evaporator cover 240 has a cold air outlet 241 for discharging cold air into the freezing chamber 110 is formed in the upper portion, the air inlet 242 for guiding the air of the freezing chamber 110 to enter the lower portion of the evaporator 210 is provided. It is formed on the lower side.

3 and 4, the cold air supply device 300 for the refrigerating chamber is configured to discharge the cold air uniformly over the refrigerating chamber 120 exclusively as a characteristic element of the present invention, for this purpose, the internal chamber of the refrigerating chamber 120 A rectangular evaporator 310 is installed on the rear wall center portion of the rear wall 121, which is covered by the heat insulating material 351 and the evaporator cover 350. Both sides of the evaporator 310 are provided with symmetrical discharge ducts 330 for guiding the generated cold air to the refrigerating chamber 120 and suction ducts 340 for guiding the refrigerating chamber 120 air to the evaporator 310. This is achieved by the inner wall 121 of the refrigerating chamber 120 and the evaporator cover 350. In addition, a fan that sucks the refrigerating chamber 120 air into the lower portion of the evaporator 310 through the suction duct 340 in the upper center of the evaporator 310 and forcibly blows the cold air generated while passing through the evaporator 310 to the refrigerating chamber 120. 320 and the motor 321 are provided.

Referring to the structure of the discharge duct 330 and the suction duct 340 for guiding the cold air circulation in more detail as follows.

First, the discharge duct 330 is configured such that the upper end portion 331 is in communication with the fan 320 and the motor 321, that is, the upper portion of the evaporator 310, and the lower end portion 332 is symmetrically along both sides of the evaporator 310. It consists of an extension. In the discharge duct 330, a plurality of cold air discharge ports 333 spaced by a predetermined interval are arranged up and down.

In addition, the suction duct 340 has a lower end portion 342 communicating with the lower portion of the evaporator 310, and an upper end portion 341 extends upwardly adjacent to the discharge duct 330. That is, the upper end 341 of the suction duct 340 extends symmetrically to the upper side of the rear wall of the refrigerating chamber 120, and the suction port 343 is formed at the upper end thereof so that the refrigerating chamber 120 air is sucked. Accordingly, the air that has completed the heat exchange operation in the refrigerating compartment 120 and rises above the refrigerating compartment 120 is introduced into the evaporator 310 through the inlet 343, which will be described in detail in the operation description.

On the other hand, a drain tank 370 for collecting the defrost water generated therein is configured under the evaporator 310. As shown in FIG. 5, the drain water tank 370 is spaced apart from the lower end of the evaporator 310 by a predetermined interval. The upper end of the drain bath 370 is open to accommodate the entire lower end, and the inner chamber 121 of the refrigerating chamber 120 is recessed to recess the center. It is molded integrally with). And the defrost water generated in the evaporator 310 by the support 360 for supporting both ends of the evaporator 310 is guided to the drain tank 370, which is discharged to the outside through the drain hose 371. That is, the inner portion 121 of the refrigerating chamber 120 has a “b” shaped support part 360 supporting and enclosing both ends of the lower end of the evaporator 310 so as to protrude toward the front side. It is installed on the rear wall surface of the inner box 121 of the refrigerating chamber 120 through the support part 360, and the defrost water flows down by the support part 360 and falls into the drain water tank 370.

The cold air supply device 300 for the refrigerating compartment has a discharge 330 and the suction duct 340 symmetrically formed on both sides of the evaporator 310 in a symmetrical plane, whereby the refrigerating compartment 120 is installed. Enemy reduction is minimal.

Next will be described the operation and the effects of the refrigerator according to the present invention configured as described above.

First, when the circulation fan 220 of the freezer compartment cold air supply device 200 rotates, the air of the freezer compartment 110 flows into the evaporator 210 through the air inlet 242 and passes through the evaporator 210. Turns into cold Subsequently, the cold air is discharged to the freezing chamber 110 by the forced blowing force of the circulation fan 220 to freeze and store the stored food, and the air which has completed the heat exchange operation is introduced into the evaporator 210 through the air inlet 242 again. .

When the fan 320 of the refrigerating compartment cold air supply device 300 is rotated by the motor 321, the air located above the refrigerating compartment 120 is sucked into the suction duct 340 through the suction port 343. , And flows along the bottom of the evaporator 310. In addition, the introduced air is changed into cold while passing through the evaporator 310 by the suction blowing force of the fan 320, which is forcibly blown toward the upper end portion 331 of the discharge duct 330. The cold air flows along the inside of the discharge duct 330 and is discharged to the refrigerating chamber 120 through the multiple cold air discharge ports 333.

In this case, as described above, since the discharge duct 330 is symmetrically extended along both side ends of the evaporator 310, the discharge duct 330 is supplied to the compartments in the refrigerating chamber 120 and the shelf 160 to cool the food evenly. Let's do it.

In addition, the air that has completed the heat exchange in the refrigerating compartment 120 rises to the upper space of the refrigerating compartment 120 by a natural convection phenomenon, and the air flows back into the evaporator 310 through the suction port 343 and the suction duct 340 to be cooled. Is converted into a continuous cycle. At this time, since the air introduced from the refrigerating chamber 120 is in a humid state, when the air comes into contact with the relatively cold evaporator 310, it is condensed to fall below the dew point temperature, and the defrost water flows down to the drain tank 370. Is collected. The defrost water falling from both ends of the evaporator 310 is guided and collected into the drain water tank 370 by the support part 360 supporting the evaporator 310 and is discharged to the outside through the drain hose 371.

As a result, the cold air supply device 300 for a refrigerating compartment according to the present invention distributes and distributes cold air evenly to the refrigerating compartment 120 without a separate driving means, so that a temperature deviation according to the refrigerating compartment 120 position does not occur and thus stores the food stored therein. Cool evenly. In addition, since the air having completely completed the heat exchange action is introduced back into the evaporator 310 through the suction port 343 located above the refrigerating chamber 120, the heat exchange efficiency of the refrigeration cycle is improved. The support 360 for supporting the evaporator 310 and the drain tank 370 for collecting the defrost water are integrally formed in the inner phase 121 of the refrigerating chamber 120 so as to completely accommodate the lower end of the evaporator 310. It can be done easily and manufacturing cost is reduced.

As described in detail above, the refrigerator according to the present invention constitutes a discharge duct formed with multiple stages of cold air outlets symmetrically guiding the cold air discharge symmetrically around the evaporator provided at the center of the rear wall of the refrigerating chamber, and a suction duct for guiding the air suction. A support part supporting both lower ends and a drain bath in which defrost water is collected are integrally formed in the refrigerating chamber. Therefore, the evaporator can be easily assembled and the defrost water can be easily collected, and the temperature distribution is not generated by uniformly distributing the cold air through the multi-stage cold air outlet without any means.

Claims (1)

The cabinet 100 having the freezing compartment 110 and the refrigerating compartment 120 partitioned therein is provided on the rear wall surface of the inner box 121 of the refrigerating compartment 120, and the evaporator 310 is provided on the center to supply cold air to the refrigerating compartment 120. In the refrigerator with a cold air supply unit 300, the fan 320 is built in, The cold air supply device 300 has an upper end portion 331 communicating with the upper portion of the evaporator 310 and extending downward along the side surface of the evaporator 310 to discharge the cold air generated by the evaporator 310 to the refrigerating chamber 120. The guiding discharge duct 330 and the lower end 342 communicate with the lower part of the evaporator 310, and the upper end 341 extends upward along the discharge duct 330 to supply air to the refrigerating chamber 120 to the evaporator 310. Suction duct 340 to guide the suction to the inside, the lower end of the evaporator 310, the drain tank 370 is provided in the inner phase 121 of the refrigerating chamber 120 to accommodate the entire lower end of the evaporator 310, Refrigerator, characterized in that provided in the refrigerating chamber (120) protruding in the inner phase (121) and to guide the defrost water falling from the evaporator (310) to the drain water tank (370).