KR20000002735A - Cooling device of vegetable storing room of refrigerator - Google Patents

Abstract

PURPOSE: A cooling device of a vegetable storing room of a refrigerator is provided to keep freshness of vegetables for a long time by indirectly cooling the vegetables within the vegetable storing room. CONSTITUTION: A refrigerator containing a vegetable storing room for storing vegetables comprises:a hole(10b) for discharging the cold air in a cold chamber to the vegetable storing room(11); a cooling member in the vegetable storing room for venting the cold air to be discharged through the hole by leading to the outside wall(11a) of the vegetable storing room.

Description

Refrigerator Vegetable Storage Chiller

The present invention relates to a refrigerator, and more particularly, to a vegetable storage compartment cooling apparatus of a refrigerator.

In general, a refrigerator is a refrigeration and refrigerating device that keeps food fresh for a long time by repeating a refrigeration cycle in which a refrigerant is compressed, condensed, expanded, and evaporated, so that food is kept fresh for a long time. It is a generalized home appliance used.

A basic configuration of the refrigerator as described above will be described with reference to FIG. 1 as follows.

The refrigerator condenses a high-temperature / high-pressure gas refrigerant flowing from the compressor and a compressor (1) for raising / lowering a low-temperature / low-pressure gas refrigerant at a high temperature / high pressure. A condenser (2) for converting the refrigerant into a condenser (2), a capillary tube (3) which is condensed relative to the diameter of the refrigerant pipe of the other part, and depressurizes the liquid refrigerant to low temperature / low pressure, and the low temperature / low pressure refrigerant is kept at a low pressure state. And an evaporator 4 for evaporating at low temperature (-30 ° C.).

The structure of a conventional refrigerator, which is essentially equipped with the above devices, is an external case 5 as a heat insulator as shown in FIG. 2, and low temperature cold air formed on the upper side of the outer case and heat-exchanged by the evaporator 4 directly. And a freezer compartment 6 which maintains an indoor temperature of about 18 ° C., and low temperature cold air formed in the lower portion of the freezer compartment and passing through the evaporator 4 through the freezer compartment 6, or through a constant path, so that about 0 It consists of the refrigerator compartment 7 which maintains the room temperature of -7 degreeC, and the door 6a, 7a provided in front of each chamber so that each said chamber can be opened and closed.

Therefore, the cold air of the refrigerating compartment heat-exchanged to the high temperature by the refrigerated food stored in the refrigerating compartment 7 and the suction force of the suction and blower fan 8 installed in the rear of the freezing compartment 6 and natural convection phenomenon. Forced suction into the evaporator (or cooler) 4 side through the barrier 9 partitioning the refrigerating chamber 7, and the refrigerating chamber cold air passes through the evaporator 4 at low temperature due to the subsequent suction and rotational force of the blower fan 4. Heat exchange.

The cold heat exchanged as described above is partially blown into the freezer compartment 6 by the suction and blower fan 8, and the remaining cold air is freezer compartment duct (not shown) formed in the rear of the freezer compartment 6 and the refrigerating compartment 7. Forced blowing into the refrigerating compartment through the refrigerating compartment duct 10 formed in the rear of the) to lower the freezing compartment (6) and the refrigerating compartment (7).

As described above, the cycle for lowering the temperature inside the refrigerator continues until the temperature reaches the set temperature, and when the temperature reaches the set temperature, the refrigerator is temporarily stopped (or, precisely, the compressor is “off” to produce cold air). It will prevent overcooling and wasted power when the inside of the refrigerator falls below the set temperature.

After that, when the temperature in the refrigerator rises above the set temperature, the refrigerating cycle is resumed.

Meanwhile, as shown in FIGS. 2 and 3, a vegetable storage box 11 for storing vegetables and fruits is installed at a lower portion of the refrigerating chamber 7, and a flat vegetable storage cover 12 is provided at the top of the vegetable storage box. Is installed.

The vegetable container 11 is installed to open and close the vegetable container cover 12 in a drawer type, the vegetable container cover 12 is cold air so that the cold air of the refrigerating chamber (7) can be introduced into the vegetable storage box (11). A plurality of inflow holes 12a are formed.

Therefore, the cold air flowing along the refrigerating compartment duct 10 is discharged into the refrigerating compartment 7 through the cold air discharge port 10a formed on the refrigerating compartment duct, thereby lowering the inside of the refrigerating compartment, and part of the discharged cold air. Through the cold air inlet hole (12a) formed in the vegetable container cover 12 is introduced into the vegetable container (11) to refrigerated vegetables stored in it.

As such, the direct cooling method for directly contacting the cold air with vegetables has a problem that the vegetables wither because the cold air is circulated by the suction and blower fans 4 to absorb moisture in the vegetable storage chamber.

That is, the inside of the vegetable storage box (11) can maintain the freshness of vegetables only for a long time to maintain a low temperature / high humidity state, but it is difficult to maintain high humidity conditions due to the dehumidification characteristics of cold air by the direct cooling method as described above This had to be shortened.

In addition, the cold air inlet hole (12a) formed in the vegetable container cover 12 is provided with a stopper (not shown) to adjust the size of the cold air inlet to adjust the size, but withering of the above-described vegetables Not only can not be fundamentally prevented as well as a lot of cold air inflow was a problem that the vegetables are frozen.

The present invention has been made to solve the above-mentioned conventional problems, the object is to ensure that the freshness of the vegetables for a long time by allowing indirect contact with the cold air is not in direct contact with the vegetables.

The present invention for achieving the above object is a refrigerator provided in the refrigerator compartment having a refrigeration chamber duct for supplying the heat exchanged low-temperature cold air to the refrigerating chamber, and a refrigerator equipped with a vegetable storage box for storing vegetables; A hole is formed on the duct of the refrigerating chamber to discharge cold air into the vegetable storage container, and an upper part of the vegetable storage container is provided with a vegetable chamber cooling member to guide and discharge cold air discharged through the hole to the outside of the wall of the vegetable storage container. To provide a vegetable storage room cooling apparatus of the refrigerator, characterized in that the inside of the vegetable storage box is indirectly cooled by heat transfer of cold air discharged to the outside of the vegetable storage box.

1 is a configuration diagram for forming a refrigeration cycle of a typical refrigerator

2 is a longitudinal sectional view showing an example of a typical refrigerator.

Figure 3 is a longitudinal section of the main portion of the conventional vegetable storage

4 is a partially cutaway perspective view of the vegetable storage box of the present invention with the cooling device added thereto

5 is a bottom perspective view of FIG.

Figure 6a is a side cross-sectional view of the present invention vegetable container installed in the refrigerator

Figure 6b is a sectional front view of the vegetable storage box of the present invention

Fig. 7A is a sectional view of main parts of the refrigerator in which the shutter is installed in the hole of the refrigerator compartment duct;

Figure 7b is a sectional view of the main portion of the vegetable container coupled to the hole in which the shutter is installed

Figure 8 is a longitudinal sectional view showing another embodiment of the vegetable storage box of the present invention

Explanation of symbols for main parts of the drawings

7: refrigerator compartment 10: refrigerator compartment duct

10b: hole 11: vegetable storage box

11a: wall 11b: vent

110: vegetable chamber cooling member 111: body

112: space 113: cold air inlet

114: cold air discharge hole 120: shutter

4 is a partially cutaway perspective view of the vegetable storage box of the present invention with a cooling device added, FIG. 5 is a bottom perspective view of FIG. 4, and FIG. 6A is a side cross-sectional view of the vegetable storage box of the present invention installed in a refrigerator, and FIG. Fig. 7a is a main sectional view of the main portion of the vegetable storage box with the shutter installed in the hole of the refrigerating chamber duct, Fig. 7b is a sectional view of the main portion of the vegetable container coupled to the hole in which the shutter is installed, Fig. 8 is the present invention. As a longitudinal cross-sectional view showing another embodiment of the vegetable storage box, a detailed description of the vegetable storage room cooling apparatus of the refrigerator with reference to the accompanying drawings as follows.

The vegetable storage compartment cooling apparatus of the present invention is installed in the rear of the refrigerating compartment 7 as shown in FIGS. 4 to 6b, and is provided in the refrigerating compartment duct 10 for supplying the heat exchanged cold air to the refrigerating compartment, A refrigerator having a vegetable storage box (11) for storage; A hole 10b is formed on the duct 10 of the refrigerating chamber 7 to discharge the cold air into the vegetable storage box 11, and the cold air discharged through the hole 10b in the upper portion of the vegetable storage box 11. It is provided with a vegetable chamber cooling member 110 to guide the discharge to the outside of the wall (11a) of the vegetable storage box 11, so that the inside of the vegetable storage box is indirectly cooled by heat transfer of cold air discharged to the outside of the vegetable storage box (11). Would

This will be described in more detail as follows.

The vegetable chamber cooling member 110 has a space portion 112 therein, the body 11 is integrated in the upper portion of the vegetable storage box, and formed in a state in communication with the space portion 112 in the rear of the body, the refrigerator compartment The cold air inlet 113 inserted into the hole 10b formed on the duct 10 and the plurality of cold air discharge holes 114 formed in communication with the space 112 around the bottom of the body 111. )

At this time, the cold air discharge hole 114 is located outside the wall 11a of the vegetable storage box 11 so that cold air discharged through the cold air discharge hole 114 does not flow into the inside of the vegetable storage box 11 ( 11a) The discharge was made along the outer surface.

In addition, the cold air discharge hole 114 is formed so as to increase the pore size toward the front from the rear of the vegetable storage box 11 as shown in Figure 5, or to the same pore but toward the front from the rear of the vegetable storage box 11 The gap between the cold air discharge holes 114 was formed to be gradually densified so that cold air was uniformly discharged from the front and rear of the vegetable chamber cooling member 110, which will be described later.

Therefore, when the vegetable container 11 and the vegetable chamber cooling member 110 formed integrally therein are pushed into the refrigerating chamber 7, the cold air inlet 113 formed at the rear of the vegetable chamber cooling member 110 is inserted into the hole 10b. It becomes a state.

When the refrigerator is operated in this state, as the cold air in the refrigerating compartment duct 10 is supplied into the refrigerating compartment 7, the refrigerating compartment is cooled, and at the same time, some cold air in the refrigerating compartment duct 10 forms a hole 10b formed in the lower portion of the refrigerating compartment duct. The cold air is supplied to the cold air inlet 113 inserted therein.

The cold air supplied to the cold air inlet 113 is introduced into the space 112 of the vegetable chamber cooling member 110 in communication with the cold air inlet 113, and the cold air introduced into the space flows forward from the rear of the space.

The cold air is discharged to the outside through the plurality of cold air discharge holes 114 formed on the bottom in the flow process in the space 112, the cold air discharge hole 114 is forward from the rear of the vegetable chamber cooling member 110. Increasingly, the pore size increases or the same pore size but the gap is densely formed, so cold air is evenly discharged from the front and rear.

That is, since the cold air inlet 113 is located at the rear of the vegetable chamber cooling member 110, the amount of cold air inflow is large, and the amount of cold air discharged to the cold air discharge hole 114 gradually decreases in consideration of this. The pore diameter of 114 is increased from the rear of the vegetable chamber cooling member 10 toward the front side, or the pore size is the same, but the gap is densified so that the amount of cold air discharged from the front and rear of the vegetable chamber cooling member is made the same.

The cold air discharged through the cold air discharge hole 114 as described above is discharged vertically downward from the upper side of the outer surface of the wall 11a of the vegetable storage box 11, and thus the vegetables stored in the vegetable storage box are indirectly cooled while the wall is coldly cooled. In addition, the cold air is discharged to all sides of the vegetable storage box 11 to evenly cool the inside of the vegetable storage box to prevent the cooling deviation.

In addition, since the cold air is not directly introduced into the inside of the vegetable storage box 11 as described above, moisture in the vegetable storage box is not eroded by the cold air, so that the inside of the vegetable storage box can maintain the conditions of low temperature / high humidity.

Therefore, the vegetables stored in the vegetable storage box 11 can be kept fresh for a long time.

In the above, although the vegetable chamber cooling member 110 has been described as being integral to the upper portion of the vegetable storage box 11, the structure detachably separated from each other is also possible.

On the other hand, if the cold air discharged to the outside of the vegetable storage box 11 as described above can maintain a high humidity condition, but compared to the way that the cold air is directly introduced as compared to the conventional method, since the fact that the cooling is somewhat lowered in order to make up for this. As shown in FIGS. 5 to 6a, a vent hole 11b is formed on one side of the vegetable container 11 to communicate with the refrigerating chamber 7, so that a part of the cold air discharged from the vegetable chamber cooling member 110 flows into the vegetable container. The above problem is solved as possible.

The vent hole 11b may be formed at any location in the vegetable storage compartment 11 wall 11a as long as it can communicate with the refrigerating compartment 7 as described above. It is preferable to form the upper part of the wall 11 because it may be in direct contact with the vegetables.

When the air vent 11b is formed on the upper side of the vegetable storage compartment 11 wall 11b as described above, a part of the cold air discharged into the refrigerating chamber 7 flows horizontally through the air vent 11b. By forming a cold air layer on the top of the vegetable storage box 11 to gradually cool the vegetables, the vegetables are not easily wither or freeze.

Meanwhile, as shown in FIGS. 7A and 7B, the shutter 120 is elastically installed in the hole 10b into which the cold air inflow portion 113 is inserted. The shutter 120 is a cold air inflow portion 113. ) Is inserted into the hole 10b to be opened by the advancing force, and when the cold air inflow portion 113 is removed from the hole 10b, the shutter 120 is automatically closed by the return force of the spring 121. .

That is, the lower part of the shutter 120 is hinged to the refrigerating chamber duct 10 so that the upper end of the shutter is rotatably installed based on the hinge shaft 122 to facilitate insertion and separation of the cold air inlet 113. .

In the above, the lower part of the shutter 120 is hinged to the refrigerating chamber duct 10, but the present invention is not limited thereto. The cold air inlet 113 is easily inserted into and separated from the hole 10b, and the opening and closing of the hole 10b is performed. If possible, any part of the shutter 120 may be hinged to the cold air inlet.

However, when the upper portion of the shutter 120 is hinged and fixed, the cold air inlet hole 113a of the cold air inlet 113 is blocked by the shutter 120 when the cold air inlet 113 is inserted into the hole 10b. It is preferable to exclude the bonding structure.

The reason why the shutter 120 is installed in the hole 10b as described above is that when the vegetable storage box 11 is removed for storing the vegetables, the vegetable chamber cooling member 110 formed integrally therewith is also spaced apart from the refrigerating duct 10. Therefore, the cold air inlet portion 113 is to prevent the leakage of cold air by automatically blocking the hole by the shutter 120 when it is removed from the hole (10b).

Meanwhile, in order to reduce the temperature change in the vegetable storage box 11, the wall 11a of the vegetable storage box 11 has a double structure as shown in FIG. 8, and a constant temperature material 130 is embedded between the double walls.

The constant temperature material 130 is suitable for the low freezing point salt water, but is not limited to this may be applicable if the material has a similar freezing point.

The reason why the thermostatic material is built into the wall 11a of the vegetable storage box 11 is as a countermeasure against the decrease in cooling efficiency of the indirect cooling method compared to the direct cooling method. By blocking the heat exchange with and to maintain the temperature inside the vegetable storage box (11) already cooled can be obtained the effect of increasing the cooling efficiency.

At this time, the constant temperature may be improved if all of the constant temperature material 130 is embedded in the entire wall. However, the constant temperature material is considered to be an indirect cooling method that cools the inside of the vegetable container 11 by discharging cold air to the outside of the wall. This configuration is to be avoided because it is blocked by the external cold air is delivered to the inside by the 130.

The present invention as described above has an effect of maintaining the freshness of the vegetables for a long time because the indirect cooling method, and when the vegetable storage box is opened, the cold air supplied to the vegetable chamber cooling member is blocked, thereby preventing unnecessary cold air discharge, thereby reducing power consumption. .

Claims (9)

1. A refrigerator comprising: a refrigerator compartment duct installed at a rear of a refrigerator compartment and configured to supply heat exchanged cold air to the refrigerator compartment, and a vegetable compartment installed below the refrigerator compartment to store vegetables; Forming a hole on the refrigerating compartment duct, An upper portion of the vegetable storage box is provided with a vegetable chamber cooling member inserted into the hole to supply cold air from the refrigerating chamber duct to the outside of the wall of the vegetable storage box, and the vegetables are transferred by the heat transfer of the cold air discharged to the outside of the vegetable storage box. Vegetable storage compartment cooling device of the refrigerator, characterized in that the inside of the storage box to be indirectly cooled. The method of claim 1, The vegetable compartment cooling member has a space therein, the body is installed on the top of the vegetable storage box, A cold air inlet part formed at a rear side of the body in communication with the space part and fitted into a hole formed on a refrigerator compartment duct; Cooling apparatus for a vegetable storage room of the refrigerator, characterized in that consisting of a plurality of cold air discharge holes formed in communication with the space portion around the bottom of the body. The method of claim 2, The cold storage device cooling apparatus of the vegetable storage room of the refrigerator, characterized in that the pore is gradually increased from the cold air inlet to the opposite side. The method of claim 2, The cold storage device cooling apparatus of the vegetable storage room of the refrigerator, characterized in that the densely arranged toward the opposite side from the cold air inlet. The method of claim 2, The refrigerator of the vegetable storage room of the refrigerator, characterized in that the shutter is elastically installed so that the hole is opened when the cold air inlet is inserted and the hole is closed when the cold air inlet is removed. The method of claim 1, Cooling device of the vegetable storage compartment of the refrigerator, characterized in that the wall of the vegetable container is a constant temperature material, so that the heat exchange between the internal air and the external air of the vegetable container is blocked. The method of claim 6, Vegetable storage room cooling device of the refrigerator, characterized in that the constant temperature is salt water. The method of claim 1, One side of the vegetable storage box is formed with a ventilation hole of the appropriate size, so that a part of the cold air discharged from the cold air discharge hole of the vegetable compartment cooling member is introduced into the inside of the vegetable storage container through the vent hole horizontally Storage room chiller. The method of claim 8, Ventilation is vegetable storage room cooling apparatus of the refrigerator, characterized in that formed on the top of one side of the vegetable storage box.