KR100428504B1 - A refrigerator for kimchi - Google Patents

Abstract

The present invention relates to a kimchi refrigerator, and its object is to improve the bottom structure of the door to maintain a uniform temperature throughout the storage compartment without variation.

According to the kimchi refrigerator according to the present invention, the front, rear, left and right spaces of the storage compartment 20 are cooled through the main cooling pipe 51 of the evaporator 50, and the upper space of the storage compartment 20 is the bottom surface of the door 40. It is cooled through the sub-cooling pipe 52 and the cooling plate 80 of the evaporator 50 installed in the. Accordingly, the storage compartment 20 is heat-exchanged by a five-sided three-dimensional cooling method, thereby maintaining a uniform temperature distribution throughout the entire structure, thereby maintaining the freshness of kimchi for a long time and improving product reliability.

Description

A refrigerator for kimchi}

The present invention relates to a kimchi refrigerator for long-term storage of kimchi, and more particularly to a kimchi refrigerator having a door installed in the upper cabinet to open and close the storage compartment.

In general, Kimchi refrigerators are constructed so that freshly prepared kimchi is appropriate to the user's preference by using a heating device, and the matured kimchi can be refrigerated for a long time through an evaporator of a refrigeration cycle.

As shown in FIG. 1, a conventional kimchi refrigerator that performs this function includes a cabinet 1 having a storage compartment 2a and a machine compartment 4 partitioned therein, and an evaporator 5 embedded in a wall of the cabinet 1. ) And a heater (6) and a door (8) coupled to the upper portion of the cabinet (1) by a hinge (8a) to open and close the storage compartment (2a).

The cabinet 1 includes an inner case 2 in a rectangular enclosure having an upper portion opened to form a storage compartment 2a, an outer case 3 surrounding the inner case 2 at a predetermined interval, and the outer case 3 and the inside. It consists of a heat insulation wall 7 provided between the cases 2.

And the refrigerant pipe constituting the evaporator (5) is bent to surround the outer wall of the inner case (2), it is configured by direct cooling to directly transfer the cold air through the inner case (2). In addition, the heater 6 for aging kimchi is also installed along the outer wall of the inner case 2 together with the evaporator 5.

Accordingly, the cold air supplied through the evaporator 5 is kept cold by conduction and natural convection, thereby keeping the kimchi stored in the inner case 2 in a mature state. Since the storage compartment 2a is opened by opening the door 8 upward, the user can easily take out the kimchi as necessary.

However, this conventional kimchi refrigerator has a disadvantage that a temperature deviation occurs according to the internal position of the storage compartment (2a). That is, cold air is generated through the evaporator 5 installed along the outer wall of the inner case 2, and the cold air is lowered to the lower space of the storage compartment 2a by the density difference, and the air exchanged with the kimchi is the upper portion of the storage compartment 2a. It goes up to the space (S). Accordingly, the temperature of the upper space S of the storage compartment 2a is relatively higher than that of the lower space, so that the kimchi located in the upper space S of the storage compartment 2a adjacent to the bottom of the door 8 is less fresh. .

As a result, a temperature deviation occurs depending on the location of the inside of the storage compartment 2a, thereby making it difficult to change the taste of aged kimchi.

The present invention is to solve this problem, an object of the present invention is to provide a kimchi refrigerator that can be maintained uniformly without variation in the temperature distribution in the storage compartment by laying a cooling structure on the bottom of the door for opening and closing the storage compartment. It is.

1 is a side sectional view showing a conventional kimchi refrigerator internal structure.

Figure 2 is a perspective view showing the overall structure of the kimchi refrigerator according to the present invention.

3 is a cross-sectional view taken along the line III-III of FIG. 2, showing a state in which the door is closed.

Figure 4 is an exploded perspective view showing the door bottom structure of the kimchi refrigerator according to the present invention.

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

10. Cabinet 20. Storage 40. Door

44L, 44R..Hinge shaft 50..Evaporator 51..Main cooling pipe

52. Sub-cooling pipe 60. Electric heater 70. Air layer

80. Cooling plate 82. Bead part

The present invention for achieving this object is;

In the kimchi refrigerator having a cabinet provided with a storage compartment so that the upper part is opened, an evaporator for cooling the storage compartment, and a door hinged to the upper part of the cabinet to open and close the storage compartment,

The evaporator has a main cooling pipe installed along the wall of the cabinet, and a sub-cooling pipe disposed at the door and connected to the main cooling pipe at both ends through a hinge coupling of the cabinet and the door.

The bottom surface of the door is characterized in that the cooling plate for cooling the upper space of the storage compartment by heat exchange through the sub-cooling pipe.

In addition, a hollow hinge shaft is provided at both ends of the rear side of the door, and an upper portion of the cabinet is formed with a bearing to which the hinge shaft is fitted. It is characterized in that associated.

In addition, between the cooling plate and the bottom of the door is characterized in that the air layer for transferring the cool air generated in the sub-cooling pipe to the cooling plate side is formed.

In addition, the cooling plate is characterized in that a plurality of bead portion is provided in the longitudinal direction.

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

Kimchi refrigerator according to the present invention, as shown in Figure 2 and 3, the kimchi storage compartment 20 and the cabinet 10 is provided to partition the machine room 30 is installed, the compressor 31 of the refrigeration cycle and the like, and A hinge 40 is coupled to an upper part of the cabinet 10 to open and close the storage compartment 20, an electric heater 60 to perform the kimchi ripening mode, and an evaporator 50 to perform the refrigeration mode.

The cabinet 10 includes an inner case 11 having a storage compartment 20 formed therein to accommodate a kimchi container, an outer case 12 coupled to enclose the inner case 11, and a storage compartment 20. Insulation wall 13 is provided between the inner case 11 and the outer case 12 to insulate the outside. The inner case 11 is a rectangular box having an open upper portion, and is made of an aluminum material having excellent thermal conductivity. The outer case 12 is manufactured by bending a metal plate, and is coupled to maintain a gap between the inner case 11 and a predetermined so as to form a heat insulating wall 13 by injecting urethane foam liquid. Reference numeral 14 denotes a control panel provided above the front part of the cabinet 10 and includes a plurality of operation buttons and a storage room temperature control program.

The evaporator 50 constituting the refrigeration cycle is made of a pipe type extending to a predetermined length, which is a main-cooling pipe installed while being bent along the wall of the cabinet 10, that is, between the inner case 11 and the outer case 12. 51 and a sub-cooling pipe 52 extending from the main-cooling pipe 51 and embedded in the door 40.

The main cooling pipe 51 of the evaporator 50 is disposed to surround the outer wall of the inner case 11 at regular intervals, thereby directly cooling the inner case 11 in the refrigerating mode. In addition, the electric heater 60 is also laid along the main-cooling pipe 51 to perform defrosting and maturing functions, the driving of which is controlled by a control program. In addition, the sub-cooling pipe 52 is disposed to penetrate through the hinge shafts 44L and 44R of the door 40 to cool the upper space of the storage compartment 20, which is detailed in the process of describing the door 40. To be described.

2 to 4, the door 40 has both rear ends rotatably coupled to the cabinet 10 in an up and down direction to enable the opening and closing operation, and a gasket 41 is installed along the bottom edge thereof. . Accordingly, when the door 40 is closed, the gasket 41 is in close contact with the upper part of the cabinet 10 by the weight of the door 40, thereby closing the storage compartment 20.

For engagement of the door 40, hinge shafts 44L and 44R are provided at both ends of the rear side of the door 40 so as to protrude laterally, and the cabinet 10 corresponding to the hinge shafts 44L and 44R is provided. The bearing 15L (15R) is formed in the upper part. Axial coupling holes 15a are formed in the bearings 15L and 15R so that the hinge shafts 44L and 44R are fitted to each other. Therefore, when the door 40 is assembled such that the hinge shafts 44L and 44R are inserted into the shaft coupling holes 15a, the door 40 rotates up and down about the hinge shafts 44L and 44R to store the storage compartment 20. It can be opened and closed.

Meanwhile, as described above, the hinge shafts 44L and 44R of the door 40 have hollow portions 44a so that the sub-cooling pipes 52 can penetrate the sub-cooling pipes 52. ) Is embedded in the rear end of the door 40 in the process of assembling the door 40, and both ends penetrate through the hollow part 44a and the bearing 15L and 15R of the hinge shafts 44L and 44R, respectively. It is associated with the cooling pipe 51. Accordingly, the sub-cooling pipes 52 are arranged to be aligned along the rotational center axis of the door 40, so that the sub-cooling pipes 52 do not interfere when the door 40 is opened and closed.

In addition, the bottom surface of the door 40 is heat-exchanged through the sub-cooling pipe 52 to cool the upper space of the storage compartment 20, the cooling plate 80 and the bottom surface of the door 40 and The air layer 70 is configured to transfer the cold air generated in the sub-cooling pipe 52 to the cooling plate 80 while suppressing direct heat exchange. Accordingly, the internal temperature of the storage compartment 20 is kept constant without any deviation depending on the position, which will be described in more detail as follows.

That is, the air layer 70 is formed by the space forming portion 42 recessed in the bottom of the door 40 so as to maintain a predetermined distance from the cooling plate 80, the rear region of the space forming portion 42 The through-cooling pipe 52 is disposed so as to be exposed. In addition, the bottom surface of the door 40 is provided with a coupling groove 43 for inserting the cooling plate 80, which is formed along the edge between the space forming portion 42 and the gasket 41 installation portion.

The cooling plate 80 is made of an aluminum plate having excellent thermal conductivity. The cooling plate 80 is bent upward along the edge thereof to provide the coupling portion 81. Therefore, when the coupling portion 81 is inserted into the coupling groove 43 to be coupled, the cooling plate 80 is firmly mounted to the bottom surface of the door 40 while covering the space forming portion 42 and the air layer 70 partitioned from the outside. Will form.

In addition, the cooling plate 80 has a plurality of bead portion 82 is formed in the longitudinal direction over the entire area, which is to change the cross-sectional area to prevent deformation of the cooling plate 80 and at the same time to improve the heat transfer area. to be.

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

When the refrigeration mode is performed by operating the control panel 14, the air in the storage compartment 20 is cooled by the direct cooling method through the evaporator 50. That is, as the compressor 31 of the refrigeration cycle is driven, the refrigerant is evaporated in the evaporator 50 so that the storage compartment 20 is kept in a refrigerated state, whereby the mature kimchi stored in the storage compartment 20 has a consistent taste. Is maintained.

In more detail, the front, rear, left and right side portions of the inner case 11 are cooled by the main cooling pipe 51 of the evaporator 50. In addition, cool air generated in the sub-cooling pipe 52 is conducted to the cooling plate 80 at the bottom of the door 40 through the air layer 70, and thus, the air surrounding the cooling plate 80, that is, the upper part of the storage compartment 20. The space is cooled directly.

Therefore, the storage compartment 20 includes the main cooling pipe 51 of the evaporator 50 installed along the outer wall of the inner case 11 on the rectangular enclosure, the cooling plate 80 and the evaporator 50 located in the upper space of the storage compartment 20. By cooling in a five-sided three-dimensional manner through the sub-cooling pipe 52 of the, the temperature distribution is made more uniform without distinguishing the upper, lower and side portion positions of the storage chamber 20.

This is because the cooling plate 80 made of aluminum has better thermal conductivity than air to effectively cool the upper air of the storage compartment 20.

As described in detail above, according to the Kimchi refrigerator according to the present invention, the front, rear, left and right spaces of the storage compartment are cooled through the main cooling pipe of the evaporator, and the upper space of the storage compartment is the sub-cooling pipe of the evaporator installed at the bottom of the door. And cooled through a cooling plate. Accordingly, the storage compartment is heat-exchanged by the five-sided three-dimensional cooling method, thereby keeping the temperature distribution uniform throughout, thereby maintaining the freshness of kimchi for a long time and improving product reliability.

Claims (4)

In the kimchi refrigerator having a cabinet provided with a storage compartment so that the top is opened, an evaporator for cooling the storage compartment, and a door hinged to the upper part of the cabinet to open and close the storage compartment, The evaporator includes a main cooling pipe installed along the wall of the cabinet, and a sub-cooling pipe disposed at the door and connected to the main cooling pipe at both ends through a hinge coupling portion of the cabinet and the door. Kimchi refrigerator, characterized in that the cooling plate for cooling the upper space of the storage compartment is heat-exchanged through the sub-cooling pipe on the bottom of the door. The method of claim 1, Hollow hinge shafts are provided at both ends of the rear side of the door, The upper part of the cabinet is formed with a bearing to which the hinge shaft is fitted, coupled, And the sub-cooling pipe is connected to the main cooling pipe at both ends thereof through the hinge shaft and the bearing. The method of claim 1, And an air layer formed between the cooling plate and the bottom of the door to transfer cold air generated in the sub-cooling pipe to the cooling plate. The method of claim 1, Kimchi refrigerator characterized in that the cooling plate is provided with a plurality of beads in the longitudinal direction.