KR100377746B1 - The structure for preventing from cool-air leakage of refrigerators - Google Patents

Abstract

The present invention relates to a refrigerator, and more particularly, to a cold air blocking structure of a refrigerator capable of preventing leakage of cold air formed in the storage compartment when the door is opened to the outside.

The cold air blocking structure according to the present invention includes a refrigerator body having a storage space formed therein; An external door for opening and closing the storage space; It is installed between the storage space and the outer door, and comprises an inner door that partitions the storage space and the outside when the outer door is opened.

According to the present invention, when the door is opened, it is possible to prevent the cold air of the storage compartment from leaking to the outside, and additionally, there is an advantage of safely storing food brought into the storage compartment.

Description

The structure for preventing from cool-air leakage of refrigerators}

The present invention relates to a refrigerator, and more particularly, to a cold air blocking structure of a refrigerator capable of preventing leakage of cold air formed in the storage compartment when the door is opened to the outside.

The refrigerator is a product designed to keep the inside of the refrigerator at a predetermined temperature or less in order to keep the food brought into the refrigerator freshly, and the cold air supply structure of the conventional refrigerator will be described with reference to the drawings.

1 is a schematic cross-sectional view showing a cold air supply structure of a conventional refrigerator. As shown in the drawing, generally, a refrigerator is formed with a storage compartment divided into a freezer compartment F and a refrigerator compartment R by a barrier B, and is opened and closed by doors 6a and 6b, respectively. A heat exchange chamber C is provided at the rear of the freezing chamber F, and inside the heat exchange chamber C, a liquid refrigerant is evaporated while flowing inside, and the surrounding air is cooled by a cold phase change. The evaporator 1 which produces | generates is provided.

The cold air generated by the contact with the evaporator 1 is directly supplied to the freezing chamber F by the blower fan 2, and the cold air circulating through the freezing chamber F is formed in the refrigerator compartment supply duct formed in the barrier B. Guided by 3).

The cold air guided to the refrigerating chamber supply duct 3 is supplied to the cold air duct 4 provided on the rear wall of the refrigerating chamber R. The cold air duct 4 is configured to supply cold air to the entire upper and lower parts of the refrigerating chamber R, and the cold air flows into the upper part of the cold air duct 4 and moves downward due to its own nature of cold air to be dropped. It is supplied into the refrigerating chamber (R) through a plurality of cold air discharge holes (4a) formed on the front surface of the cold air duct (4).

The cold air supplied to the refrigerating chamber R is circulated inside the refrigerating chamber R, and becomes relatively hot air through heat exchange with the food being stored. The high temperature air is returned to the heat exchange chamber C through the refrigerating chamber return duct 5 formed in the barrier B.

However, the conventional storage compartment structure of the refrigerator has the following disadvantages. Since the cold air has a property of falling downward, most of the cold air that is not heated in the cold air supplied to the storage chamber is collected in the lower part of the storage chamber. At this time, when the user opens the door to bring in or take out food into the storage compartment, the inside of the low temperature storage compartment is exposed to a relatively high temperature outside. In this case, the cold air collected in the lower part of the storage compartment leaks to the outside. Since the conventional storage compartment does not have a structure for preventing the cold air of the storage compartment from leaking to the outside, most of the cold air escapes to the outside. Therefore, in order to maintain the inside of the storage compartment at an appropriate low temperature, there is a problem that needs to generate and supply cold air again.

In particular, in the case of a large refrigerator with a large volume of storage in accordance with the recent trend of large size, a large amount of cold air is required to lower the storage compartment, but a considerable amount of cold air is leaked every time the door is opened. However, there is a disadvantage in that a lot of power consumption is used to lower the storage room again.

An object of the present invention is to provide a cold air leakage prevention structure of a refrigerator that can control the cold air inside the storage compartment when the door is opened to improve the above-mentioned problems.

Another object of the present invention is to provide a cold air leakage prevention structure of a refrigerator capable of safely storing contents carried in a storage compartment.

1 is a schematic side cross-sectional view of a refrigerator showing a cold air supply structure of a typical refrigerator.

Figure 2 is a front view showing a first preferred embodiment according to the present invention.

Figure 3 is a schematic side cross-sectional view showing a first preferred embodiment according to the present invention.

Figure 4 is a front view showing a second preferred embodiment according to the present invention.

※ Explanation of code about main part of drawing ※

11: guide groove 11a: fixed groove

12: inner door 12a: fixing protrusion

20: exterior door S: storage room

Cold air leakage prevention structure according to the present invention for achieving the above object, the refrigerator body formed with a storage space therein; An external door for opening and closing the storage space; An inner door installed between the storage space and the outer door to partition the storage space and the outside when the outer door is opened; It is formed on the side wall of the storage space is formed in the vertical direction to be inserted into the side end portion of the inner door comprises a guide groove for moving the inner door in the vertical direction from the front end of the storage space.

According to one embodiment of the invention, the side surface of the guide groove is formed in the storage space side wall is inserted into the side end of the inner door in the vertical direction, the guide groove is formed with a plurality of fixing grooves, the fixed in the inner door The fixing protrusion is inserted into the groove is formed.

According to another feature of the invention, the present invention includes a refrigerator body formed with a storage space therein; An external door for opening and closing the storage space; It is installed between the storage space and the outer door, and comprises an inner door for partitioning the storage space and the outside when the outer door is opened, the inner door is fastened to a hinge on the side wall of the storage space, the hinge It is characterized by rotation.

Through the above configuration, it is possible to prevent the cold air of the storage compartment from leaking to the outside when the door is opened, and additionally it is possible to safely store food brought into the storage compartment.

Hereinafter, with reference to the accompanying drawings, it will be described in detail a preferred embodiment of the present invention.

2 is a front view excluding a door of a refrigerator equipped with a cold air blocking structure according to the present invention, and FIG. 3 is a schematic side cross-sectional view. As shown, the guide groove 11 is formed in the up and down direction on both side walls of the inlet of the storage compartment S in which the shelf 10 for storing food is installed. The guide groove 11 is substantially inside the storage chamber S than the door basket 21 installed on the inner side of the outer door 20 in a state where the outer door 20 that substantially opens and closes the storage chamber S is closed. It is formed to be located in. The reason for the above is to prevent the interference between the inner door 12 and the outer door 20 fastened to the guide groove 11. In addition, as shown in the enlarged view of FIG. 3, the guide groove 11 has a plurality of fixing grooves 11a formed at predetermined intervals.

On the other hand, the guide groove 11 is fastened to the inner door 12 formed at a predetermined height. The inner door 12 is configured to prevent leakage of the cold air collected in the lower part of the storage chamber S, and both ends thereof are inserted into the guide groove 11 to move up and down along the guide groove 11. It is equipped to be. Accordingly, as the inner door 12 is moved up and down, the lower portion of the storage compartment S may be closed or opened.

The inner door 12 is fastened by first inserting one end of the inner door 12 into the guide groove 11 and then elastically deforming the inner door 12 to bend slightly, thereby resting the other end. It can be performed simply by inserting into the guide groove 11 corresponding thereto. In this fastened state, even when the outer door 20 is closed, the outer door 20 is positioned behind the door basket 21 installed on the inner side of the outer door 20, and thus the outer door ( The closure of 20) does not occur.

Looking at the inner door 12, the inner door 12 is an injection molded of a synthetic resin material, the upper and lower sides of both end portions inserted into the guide groove 11 in the fixing groove (11a) of the guide groove 11 The fixing protrusion 12a protruding in the corresponding direction is formed. The fixing protrusion 12a is a portion inserted into the fixing groove 11a at the same time as the inner door 12, and supports the load of the inner door 12 in the state inserted into the fixing groove 11a. In order to prevent the inner door 12 from falling downward due to its own weight.

Although the fixing protrusion 12a may not be movable in parts except for the portion in which the fixing groove 11a of the guide groove 11 is formed, the inner wall of the storage chamber S is made of synthetic resin and thus elastic deformation to some extent. Since this is possible, the contact surface of the guide groove 11 can be pushed out slightly and sufficiently moved. In consideration of this point, the fixing protrusion 12a may be formed in a hemispherical shape so as to reduce the contact area with the guide groove 11.

When the inner door 12 is formed to have a height that is too high, a portion that cannot be opened due to the inner door 12 occurs in a middle portion of the storage chamber S, and therefore, should be formed at a predetermined height. And, for the convenience of the user, preferably, the user should be formed of a transparent material so that the user can easily identify the food located on the rear side of the inner door (12).

Referring to the drawings the operation of the embodiment of the present invention by the above configuration is as follows.

When the refrigerator operates and the cold air is supplied to the storage chamber S, most of the cold air that has not been heated will not be returned through convection and will fall to collect in the lower part of the storage chamber S.

Meanwhile, when the user opens the outer door 20 of the refrigerator, the storage room S is exposed to a relatively high temperature outside. At this time, when the inner door 12 is in a state in which the lower part of the storage compartment is closed, cold air collected in the lower part of the storage compartment S will be prevented from leaking to the outside by the inner door 12.

And if the user wants to bring in or take out food in the lower space of the storage compartment (S), that is, the rear storage space of the inner door 12, the inner door 12 is moved upward along the guide groove (11) The lower part of the storage compartment S is opened. At this time, the protrusion formed on the inner door 12 is moved to deform the contact surface of the guide groove 11 to a certain degree, and is inserted when the fixing groove (11a). And this process is repeated until the user desired position, it will be inserted into the fixing groove (11a) of the predetermined position selected by the user.

In this case, the load of the inner door 12 is supported by the fixing protrusion 12a and the fixing groove 11a, so that the user is fixed at the position without supporting the inner door 12 separately. The user may easily perform a task such as bringing in food. When the operation is finished, the internal door 12 may be moved downward to close the lower portion of the storage chamber S to control the cold air of the storage chamber S. FIG.

In addition, in the state in which the inner door 12 is fastened, since the storage space of the storage compartment S is isolated from the outside, food or containers stored in the storage compartment S due to a mistake of the user are stored in the storage compartment S. Deviation from outside is prevented. Therefore, food or vessels stored in the storage room (S) do not occur to fall or break down to the floor, the user will feel the satisfaction in use.

As described above, the present invention is to provide a separate inner door that can be opened and closed on the lower side of the storage compartment, to configure the configuration so as to prevent the cold air collected in the storage compartment to leak out when the door is opened.

Within the scope of the above, many other variations will be possible to one skilled in the art.

For example, in the above-described embodiment, one inner door 12 having a predetermined size is provided, but it may be possible to provide the plurality of inner doors 12 in small sizes. In this case, when the user moves only the inner door 12 at a specific position and the inner door 12 located above, it is possible to open a storage space of a desired portion, thereby forming the inner door 12 higher. The advantage is that it is possible.

In addition, in the above-described embodiment, in order to fix the position of the inner door 12, a fixing protrusion 12a is formed in the inner door 12, and the fixing protrusion 12a is formed in the guide groove 11. Although the fixing groove 11a to be inserted is formed, this is only one example for fixing the position of the inner door 12, and instead of forming the fixing groove 11a, the thickness of the fixing protrusion 12a is increased. By using the frictional force between the fixing protrusion 12a and the guide groove 11, the fixing method is possible, and this fixing method will not be limited.

In the above-described embodiment, the guide groove 11 to which the inner door 12 is fastened is formed up and down on the side wall of the storage chamber S so that the inner door 12 is moved up and down along the guide groove 11. It is configured to move and open the lower part of the storage compartment (S), but alternatively, hinge coupling may be applied.

That is, as shown in Figure 4, by forming a hinge portion for hinge coupling on the side of the storage chamber (S) side and the inner door 12, and fastening, as shown in the left storage chamber of Figure 4, the inner door 12 The hinge 30 may be opened and closed by rotating up and down, or may be opened and closed by rotating left and right with respect to the hinge 30 'as shown in the right storage compartment of FIG. 4. In such a case, it may be desirable to form fixing parts 31 and 31 'on one side of the inner door 12 and the storage chamber S to maintain or open the inner door 12 in a closed state.

In addition, in the above-described embodiment, the present invention has been described by applying the present invention to a parallel refrigerator having a refrigerator compartment and a freezer compartment on both sides, but the present invention can be applied to a general refrigerator having an upper freezer compartment and a lower refrigerator compartment.

As described above, according to the present invention, a separate inner door is installed to close the lower storage compartment so that cold air collected in the lower part of the storage compartment does not leak out when the door is opened. Therefore, the conventional problem of having to generate and supply cold air again due to the leakage of cold air is improved, and an effect of reducing the use of power consumption for generating cold air may be expected.

In addition, the inner door may not only control the cold air by closing the lower part of the storage compartment, but also prevent food from being stored in the storage compartment from leaving the storage compartment. Therefore, food can be prevented from falling off the storage racks and the container from being spilled or spilled, and the food can be stored safely.

Claims (5)

delete A refrigerator body having a storage space formed therein; An external door for opening and closing the storage space; An inner door installed between the storage space and the outer door to partition the storage space and the outside when the outer door is opened; It is formed on the side wall of the storage space is formed in the vertical direction so that the side end portion of the inner door is inserted into the cold groove of the refrigerator characterized in that it comprises a guide groove for moving the inner door in the vertical direction from the front end of the storage space. rescue. The refrigerator of claim 2, wherein the refrigerator further comprises a fixing unit fixing the position of the inner door. The refrigerator of claim 3, wherein the fixing unit comprises a plurality of fixing grooves formed in the guide groove and a fixing protrusion formed in the inner door and inserted into the fixing groove. A refrigerator body having a storage space formed therein; An external door for opening and closing the storage space; It is installed between the storage space and the outer door, and comprises an inner door that partitions the storage space and the outside when the outer door is opened, The internal door is fastened to a hinge on the side wall of the storage space, the cold air leakage blocking structure of the refrigerator, characterized in that rotated around the hinge.