KR19990017351A - Refrigerator - Google Patents

Abstract

The present invention relates to a refrigerator having a cooling chamber for cooling and storing food, comprising: a cold air duct provided on a wall surface of the cooling chamber to guide the flow of cold air and having a cold air outlet opening toward the cooling chamber; A guide tube installed at the cold air discharge port so as to be changeable in position, and guiding the cold air from the cold air duct into the cooling chamber; It includes a guide for guiding the position change of the guide tube. This allows the user to arbitrarily change the direction of the cold air discharged into the cooling chamber through the cold air guide member having a relatively simple configuration, so that when a temperature deviation occurs in the refrigerating chamber, it can be quickly and simply removed. In addition, the relative high temperature in the refrigerating chamber is reduced inflow into the cold air duct, thereby reducing the concept of the evaporator, thereby improving the operating efficiency of the refrigeration system.

Description

Refrigerator

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator, and more particularly to a refrigerator in which the opening position of a cold air discharge port for supplying and discharging cold air into a cooling chamber can be selectively changed.

As shown in FIG. 7, a conventional general refrigerator 101 has a main body 4 having a pair of cooling chambers divided into a freezer compartment 2 and a refrigerating compartment 3 partitioned by an intermediate partition 5. And a freezing chamber door 6 and a refrigerating chamber door 7 which open and close the respective cooling chambers 2 and 3. In the main body, a refrigeration system including a compressor 11, a condenser, a freezer evaporator 13b, and a refrigerator compartment evaporator 12b (not shown) is installed. The cold air generated in each of the evaporators 13b and 12b flows along the cold air duct 15 formed on the rear surfaces of the cooling chambers 2 and 3, and the cold air duct 15 is blown by the blowing fans 13a and 13b. It is supplied to each cooling chamber (2, 3) through the cold air discharge port 16 provided in the.

By the way, in the conventional refrigerator 101, there is a region where the cold air discharged through the cold air discharge port 16 is provided intensively and a region where a relatively small amount is supplied, thereby deepening the temperature deviation in the cooling chamber and thus uniformly cooling it. There is a problem that this can not be done. Therefore, a refrigerator that performs a so-called three-dimensional cooling method that improves such a problem has been proposed, and a refrigerator having a cold air distribution device has recently been proposed.

The three-dimensional cooling system not shown has the same configuration as the refrigerator 101 described with reference to FIG. 7, and a plurality of cold air discharge ports 16 are provided on both side walls as well as the rear walls of the cooling chambers 2 and 3. . The cold air flowing through the cold air duct 15 is uniformly discharged in the cooling chamber through the cold air discharge port 16, and uniform cooling in the cooling chamber can be achieved by intensive cooling air supply in a specific direction as necessary. It is a refrigerator for cooling. However, in the three-dimensional cooling type refrigerator, since the cold air duct must be provided on the side walls of each cooling chamber, there is a problem that the food accommodation space is reduced and the manufacturing cost is increased due to the increase of parts and manufacturing process.

On the other hand, the refrigerator not shown also having a cold air distribution device, having the same configuration as the refrigerator 101 described above with reference to FIG. 7, is made separately and the cold air discharged into the cooling chamber through the cold air discharge port 16 horizontally or A cold air distribution device for distributing in the vertical direction is rotatably installed in the cold air duct. Such a cold air distribution device has a relatively complicated configuration, which raises the manufacturing cost of the device, but has the advantage that uniform cooling in the cooling chamber can be effectively achieved.

As described above, the conventional three-dimensional cooling type refrigerator and the refrigerator having a cold air distribution device have the advantage of distributing uniform cold air in the refrigerating chamber. Have. In addition, a plurality of cold air discharge ports 16 for discharging cold air on the wall surface of the cooling chamber are inevitably provided. In particular, since these cold air discharge ports 16 are always left open, the relative high temperature in the cooling chamber is increased. It naturally flows into the cold duct. This relatively high temperature causes an frost on the evaporator (12a, 13b), there is a problem that the performance of the refrigeration cycle for forming and supplying cold air with the compressor (11), evaporator, condenser and the like is reduced.

Accordingly, an object of the present invention, in consideration of these problems in the prior art, the user can arbitrarily change the direction of the cold air discharged into the cooling chamber to be supplied to the refrigerating chamber, and has a relatively simple configuration, a refrigerator that can be manufactured at low cost To provide.

Another object of the present invention is to provide a refrigerator in which the relative high temperature in the cooling chamber is reduced inflow into the cold air duct, thereby reducing the concept of the evaporator, thereby improving the operating efficiency of the refrigeration system.

1 is a front view of a refrigerator according to the present invention;

2 is a side cross-sectional view of FIG.

3 is an exploded perspective view of the main part of FIG. 2;

4 to 6 is a cross-sectional view of Figure 2, showing the operating state of the guide tube according to the invention,

7 is a side cross-sectional view of a conventional refrigerator.

Explanation of symbols for main parts of the drawings

2, 3: Cooling chamber 5: Intermediate bulkhead

6, 7: door 12a, 12b: evaporator

13a, 13b: blower fan 15: cold air duct

16: cold air outlet 20: duct housing

21: duct member 23: the front plate

27: cold air grill member 31: guide tube

33: sliding part 34: sliding edge

39: tip opening 61: guide

63: sliding guide 64: sliding limited groove

65: sliding limit 66: sliding guide groove

According to the present invention, a refrigerator having a cooling chamber for cooling and storing food, comprising: a cold air duct provided on a wall surface of the cooling chamber to guide the flow of cold air and having a cold air outlet opening toward the cooling chamber; ; A guide tube installed at the cold air discharge port so as to be changeable in position, and guiding the cold air from the cold air duct into the cooling chamber; It is achieved by a refrigerator comprising a guide for guiding the position change of the guide tube.

Here, the guide tube includes a sliding portion extending laterally from the opening edge to form a curved portion of the cylindrical portion; The guide portion may be configured to guide the left and right circular arc sliding of the sliding portion.

At this time, the guide tube is extended in the normal direction from the plate surface of the sliding portion; The sliding part may be configured to rotate at a predetermined angle with respect to the opening surface of the cold air outlet when sliding on the left and right arcs of the sliding part. Meanwhile, the guide part may be configured to face the sliding part in a pair facing the sliding direction of the sliding part. A sliding guide part having a sliding groove for accommodating the upper and lower sliding edges; It is preferable to include a sliding limiting portion having a sliding limiting groove which is disposed in the sliding direction in the sliding direction of the sliding guide portion to limit the left and right sliding of the sliding portion in a predetermined range.

The cold air duct may include: a duct cover provided with the cold air discharge port; And a duct cover spaced apart from each other to form a predetermined cold air movement path between the duct cover and the duct cover. The guide portion may be simply provided along the edge of the cold air outlet on the rear surface of the cold air duct.

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

1 is a front view of a refrigerator according to the present invention, Figure 2 is a side cross-sectional view of FIG. As described with reference to FIG. 7 of the related art, the refrigerator 1 includes a pair of cooling chambers divided into a freezing chamber 2 and a refrigerating chamber 3 by an intermediate partition 5 in an almost rectangular main body. Opening / closing doors 6 and 7 are respectively provided on the opening fronts of the respective cooling chambers 2 and 3. The refrigerator compartment 3 is provided with a plurality of shelves 8 for placing food, and partitioned into a plurality of food storage zones parallel to each other. The special refrigeration chamber 18 used for storing the food suitable for a specific temperature range is formed in the upper side of the refrigerating chamber 3, and the vegetable chamber 19 for storing vegetables is formed in the lower side of the refrigerating chamber 3. As shown in FIG.

In the main body 4, a compressor 11, a condenser, a freezer compartment evaporator 12a, and a refrigerator compartment evaporator 12b, which are not shown, are installed to perform a refrigeration cycle, and cold air is generated in each of the evaporators 12a and 12b. A freezer compartment fan 13a and a refrigerating compartment fan 13b are installed above the evaporators 12a and 12b to forcibly blow cold air generated in each of the evaporators 12a and 12b to the freezer compartment 2 or the refrigerator compartment 3.

On the rear wall surface of the refrigerating chamber 3, a duct housing 20 is provided which forms a cold air duct 15 that provides a flow path of cold air from the evaporator 12b. The duct housing 20 includes a duct member 21 for guiding the cold air insulated, a front plate 23 attached to the front surface of the duct member 21, and a seal plate bonded to the rear surface of the duct member 21. (25) and a duct cover (27) which is coupled to the front surface at a predetermined distance from the duct member (21) below the front plate (23). The duct cover 27 has a partial cylindrical shape protruding from the rear wall surface, and forms a predetermined cold air flow path, that is, a cold air duct 15, between the duct member 21 and the duct member 21. The duct cover 27 is provided with a cold air discharge port 16 opened toward the refrigerating chamber 3 in the central region thereof, and the cold air flowing along the flow path of the cold air duct 15 is connected to the cold air discharge port 16. It is discharged into the refrigerating chamber through.

The cold air discharge port 16 is provided with a guide tube 31 slidable in an arc-like direction to guide the cold air from the cold air duct 15 into the refrigerating chamber. At the rear of the cold air duct 15, a circulation duct 17 connecting the refrigerating chamber 3 and the refrigerator compartment evaporator 12b is formed to be isolated from the cold air duct 15 by the duct housing 20. The cold air blown into the cold air duct 15 by the refrigerating chamber fan 13b is supplied into the refrigerating chamber 3 through the cold air discharge outlet 16, and the cold air discharged to cool the refrigerating chamber 3 is circulated duct 17. Through the return to the refrigerator compartment evaporator (12b).

3 is an enlarged exploded perspective view of the main part of FIG. 2, and specifically shows a guide tube 31 according to the present invention. As can be seen in the figure, a single cold air outlet 16 is formed in the central region of the duct cover 27 as described above. The guide pipe 31 provided in the cold air discharge port 16 extends radially from the pipe part 35 having a predetermined cross-sectional diameter and the opening edge 37 of the pipe part 35, and is a curved surface of a partial cylindrical shape as a whole. Sliding portion 33 to form a. This pipe portion 35 extends in the normal direction to the plate surface of the sliding portion 33.

The sliding part 33 blocks the opening surface of the cold air discharge port 16, and arcuate sliding guides the sliding part 33, which blocks the cold air discharge port 16, on the rear surface of the cold air discharge member 27 in the vertical direction. The guide part 61 is provided. The guide portion 61 is provided in an annular shape along the edge of the cold air discharging opening 16, and as long as the guide portion 61 slides to accommodate the upper and lower edges 32 of the sliding portion 33 of the guide pipe 31, respectively. It is composed of a pair of sliding guide portion 63 and a pair of sliding limiting portion 65 that also opposes each other to accommodate the two edges 34 of the sliding portion 33 to limit the sliding range within a predetermined.

The pair of sliding guides 63 are provided with sliding grooves 66 for receiving the upper and lower sliding edges 32 of the sliding portion 33 of the guide tube 31 on the opposite surfaces facing each other. These sliding grooves 66 have a gap such that the sliding edge 32 of the corresponding sliding portion 33 is forcibly fitted. Accordingly, the sliding portion 33 is slid along the longitudinal direction of the sliding groove 66 and can be stopped at a predetermined position. The sliding limit part 65 is disposed in a direction that prevents sliding of the sliding part 33, and the sliding limiting groove slidably accommodates both edges 34 of the sliding part 33 within a predetermined range, respectively. Has 64. Since the depth of the sliding restriction groove 64 is formed to be longer than the length of both edges 34 of the sliding portion 33 to be accommodated, the sliding portion 33 is only a predetermined limited sliding movement in the left and right directions.

On the other hand, the sliding groove 66 and the sliding restriction groove 64 of the guide portion 61 are curved in an arc shape corresponding to the sliding portion 33 which forms a curved portion having a partial cylindrical shape. Thus, when the sliding portion 33 slides in the left and right directions along the sliding groove 66, the sliding forms a predetermined arc-shaped curved surface, at this time, from the opening edge 37 of the sliding portion 33 The guide pipe 31 extending toward the normal direction is changed in a predetermined position with respect to the opening surface of the cold air discharge port 16. The change of the position of the guide tube 31 is made along the curved surface of the arc formed during the sliding movement of the sliding part 33, so that the tip opening 39 of the guide tube 31 is actually left and right in the arc-like direction. Will be rotated. That is, when the sliding part 33 reciprocates sliding the opening surface of the cold air discharge port 16 in the left-right direction, the front end opening 39 of the pipe part 35 is in a predetermined limited range centering on the vertical direction in a refrigerator compartment. Will rotate left and right.

4 to 6 are partially enlarged views of FIG. 2 and show the operating state of the guide tube 31 according to the present invention. As can be seen in these figures, the guide pipe 31 provided on the front of the cold air discharge port 16 is circularly sliding along the longitudinal direction of the sliding groove 66 by a predetermined pressure of the user, the sliding portion ( As the sliding edge 32 of the 33 is engaged between the sliding grooves 66, the tip opening 39 of the pipe portion 35 stops at a position facing the predetermined direction. In FIG. 4, the guide tube 31 is arrange | positioned in the center area | region of the guide part 61, and the state whose front end opening 39 faces the front is shown, In FIG. 5 and FIG. 6, the guide tube 31 is shown. The sliding portion 33 of the sliding portion 66 moves left and right along the sliding groove 66 and stops. At this time, the tip opening 39 of the pipe portion 35 corresponds to the stop position of the sliding portion 33. It is facing left and right.

On the other hand, cold air from the cold air duct 15 is discharged into the refrigerating chamber through the opening of the guide tube 31. Therefore, when the guide pipe 31 is stopped at the predetermined rotational position with respect to the cold air discharge port 16, the cold air from the cold air duct 15 is discharged toward the direction toward the front end opening 39 of the pipe part 35. . Therefore, when food of a relatively high temperature from the outside is accommodated in the refrigerating compartment or a temperature deviation occurs in the refrigerating compartment due to the opening of the door 7 or the like, the tip opening 39 of the pipe part 35 is disposed to face the corresponding area. In this case, the discharged cold air is easily brought into contact with and mixed with the relative high temperature, thereby easily removing the temperature deviation in the refrigerating chamber. Accordingly, food and the like accommodated in the refrigerating compartment can be stored more safely and well.

In the refrigerator 1 according to the present invention, a plurality of cold air discharge ports 16 provided in the conventional refrigerating chamber are removed, thereby reducing the amount of relative high temperature flowing into the cold air duct 15. Thus, since a small amount of relative high temperature reaches the evaporator 12b, the conception of the evaporator 12b is reduced, and thus the operating efficiency of the refrigeration system can be improved.

On the other hand, in the above-described and illustrated embodiments, a single cold air outlet 16 is formed in the duct cover 27 and a single guide tube 31 is also provided. The cold air discharge ports 16 may be formed to correspond to the respective zones, and the cold air discharge ports 16 may be provided with guide pipes 31 capable of reciprocating sliding in an arcuate direction.

Incidentally, in the above-described and illustrated embodiments, the refrigerator compartment 3 has been described as an example for ease of explanation, but the guide tube 31 as described above may be installed in the freezer compartment 2 as a matter of course.

As described above, according to the present invention, according to the present invention, the direction of the cold air discharged into the cooling chamber can be arbitrarily changed by the user and supplied to the refrigerating chamber, thereby easily and quickly eliminating the temperature deviation generated in the cooling chamber. In this role, that is, the cold air guide member for distributing cold air has a relatively simple configuration to provide a refrigerator that can be manufactured at low cost. In addition, since a single cold air discharge port or a relatively small number of cold air discharge ports are provided in the cooling chamber of the refrigerator, a relatively high temperature in the refrigerating chamber is reduced inflow into the cold air duct, thereby reducing the concept of the evaporator. Accordingly, the operating efficiency of the refrigeration system can be improved.

Claims (5)

A refrigerator having a cooling chamber for cooling and storing food, the refrigerator comprising: a cold air duct provided on a wall surface of the cooling chamber to guide the flow of cold air and having a cold air discharge port opened toward the cooling chamber; A guide tube installed at the cold air discharge port so as to be changeable in position, and guiding the cold air from the cold air duct into the cooling chamber; Refrigerator comprising a guide for guiding the position change of the guide tube. 2. The guide tube according to claim 1, wherein the guide tube includes a sliding portion extending laterally from the opening edge to form a curved portion having a cylindrical shape; The guide unit is a refrigerator, characterized in that for guiding the left and right circular arc sliding of the sliding portion. 3. The guide tube according to claim 1 or 2, wherein the guide tube extends in a normal direction from the plate surface of the sliding portion; The refrigerator characterized in that rotates at a predetermined angle with respect to the opening surface of the cold air discharge port when sliding the left and right arcs of the sliding portion. The sliding guide of claim 1 or 2, wherein the guide part comprises: a sliding guide part having a sliding groove for tightly accommodating the upper and lower sliding edges of the sliding part in a pair facing each other in the sliding direction of the sliding part; And a sliding limiting unit having a sliding limiting groove which is disposed in the sliding direction in the sliding direction of the sliding guide part and restricts the left and right sliding of the sliding part within a predetermined range. The duct cover of claim 1, wherein the cold air duct comprises: a duct cover provided with the cold air discharge port; And a duct cover spaced apart from each other to form a predetermined cold air movement path between the duct cover and the duct cover. The guide unit is a refrigerator, characterized in that provided along the edge of the cold air outlet on the back of the cold air duct.