JP2542979B2 - High humidity refrigerator - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indirect cooling type high humidity refrigerator for improving temperature distribution and cooling efficiency in a refrigerator.

[0002]

2. Description of the Related Art As a conventional refrigerator of this type, a casing made of a heat insulating material, a storage box made of a heat transfer panel installed with a predetermined space from the casing, and a storage box between the storage box and the casing are provided. The horizontal and vertical partition plates are composed of one continuous vertical partition plate and a horizontal partition plate that partition the space, and an evaporator and a fan for a refrigeration cycle installed outside the space partitioned by the horizontal partition plate. It is known that the air in the space is circulated by opening the end of the.

[0003]

However, in such a conventional refrigerator, theoretically the cooling air flows uniformly, but in reality, there are places where it is difficult for the air to flow in the back portion and side portions of the storage box. There is an inconvenience that the temperature distribution in the storage box becomes uneven and it is impossible to maintain high humidity in the room. Further, in a case where the storage boxes are arranged side by side in parallel, the temperature distribution between the storage boxes is different due to the fact that the storage boxes are completely partitioned by partitions and the number of times the door body is opened is different. There is. Therefore, the present invention has been made in view of the above-mentioned drawbacks of the prior art. It is difficult for the temperature distribution in the storage box to be uneven, and even if the storage boxes are arranged side by side, there is a difference in the temperature distribution between the storage boxes. The purpose is to provide what is not.

[0004]

That is, the present invention provides a box-shaped casing made of a heat insulating material and having one surface open, a door body made of a heat insulating material for opening and closing the open surface of the casing, and five inner wall surfaces of the casing. A storage box composed of heat transfer panels arranged to form a closed space between the storage box, a vertical partition plate partitioning the back surface of the space between the storage box and the casing over the entire width direction, and the vertical partition plate. A horizontal partition plate that divides the space between the casing and the bottom or ceiling of the casing and the storage box, and an evaporator and a fan for a refrigeration cycle arranged in the space partitioned by the horizontal partition, An opening portion provided at an end of the horizontal partition plate and the vertical partition plate, which communicates between an internal space and an external space, and a support which vertically projects from the vertical partition plate and separates a storage box back surface and both side surfaces from each other. Consists of a board, Serial to achieve this purpose by the high humidity-type refrigerator perforated for ventilation so that the distance becomes narrower toward the lower side including the side edges of the vertical partition plate upward. In the horizontal parallel type, the air around the adjoining storage boxes is mixed by opening the lower part of the partition, so that the temperature distribution of the refrigerators arranged in parallel is made uniform.

[0005]

In the refrigerator according to the present invention, cold air is difficult to flow in the conventional refrigerator because the vertical partition plate provided on the back of the storage box has holes for ventilation so that the intervals are narrowed from bottom to top. The heat transfer panel is evenly cooled because the cool air also blows out from the ventilation holes to a part of the back surface and the side surface of the storage box. Also, with the lower part of the partition open,
When the temperature distribution around each storage box is different, the left and right air are mixed due to the natural convection phenomenon.

[0006]

The present invention will be described in detail below with reference to the embodiments shown in the drawings. In the figure, reference numeral 1 denotes a box-shaped casing in which a heat-insulating material is injected, and one surface of which is open. In the casing 1, a storage box 2 composed of heat transfer panels is installed at a predetermined interval. Storage box 2 and casing 1
A sealed space for air flow is provided between the five inner wall surfaces. In this embodiment, a vertical partition plate 4 that divides the space at the back of the apparatus into two spaces is joined across the inner walls of the casing 1 and is thus partitioned over the entire width direction. An open part for air circulation is provided between the vertical partition plate 4 and the ceiling part of the casing 1, and the lower part thereof is continuous with the horizontal partition plate 5 that partitions the space between the storage box 2 and the casing 1. There is. An end portion of the horizontal partition plate 5 is bent downward and joined to the bottom portion of the casing 1, and an opening portion for air circulation between the inside and outside of the partition plate is provided in the bending portion, and the opening portion is for air circulation. The fan 6 is installed.

An evaporator 7 of a refrigeration cycle is installed in the lower space partitioned by the horizontal partition plate 5. 8
Reference numeral 9 is a door body made of a heat insulating material and used for opening and closing the opening of the storage box 2. In this embodiment, the corners of the back face of the storage box 2 are held by the support plate 10 vertically projecting from the vertical partition plate 4 as shown in FIG. The space and the side surface space are partitioned.
Further, as shown in FIG. 3, the vertical partition plate 4 is provided with small vent holes 12 so that the interval becomes narrower from the lower side to the upper side. Since the support box 10 divides the periphery of the storage box 2, ventilation holes 12 are also formed on both side edges of the vertical partition plate 4 in the same manner as described above (FIG. 3).

FIGS. 4 to 6 show a second embodiment of the present invention, in which a horizontally elongated box-shaped casing 1 made of a heat insulating material is provided with partitions 13, 14 whose lower half is open. As shown in FIG. 1, a storage box 2 composed of a heat transfer panel is installed in each chamber with a predetermined space between the inner wall of the casing 1 and the partitions 13 and 14. There is. In this embodiment, the lower halves of the partitions 13 and 14 are open. Furthermore, in the space between the back side of the storage box 2 and the inner wall of the casing 1, three vertical partition plates 4 are joined between the casing 1 and the partitions 13, 14 and between the partitions 13, 14 so as to divide the space into two. Has been done. Below the partition, the vertical partition plates 4 are continuous with each other by a reinforcing plate or the like. The upper end of each vertical partition plate 4 is open for air circulation, and the lower end is continuous with the horizontal partition plate 5 that partitions the space between the bottom side of the storage box 2 and the inner wall of the casing 1. The end of the horizontal partition plate 5 on the door body side is bent downward and joined to the casing 1. The bent portion is provided with a circular opening for communicating the upper and lower spaces, and fans 6 for blowing air are installed in the opening.

Evaporators 7 of the refrigeration cycle are installed in the lower spaces partitioned by the horizontal partition plate 5. The vertical partition plate 4 has a large number of ventilation holes so that the space between the vertical partition plates 4 becomes narrower from the lower side toward the upper side as in the first embodiment.
12 are perforated. Further, similarly to the above, the corner portion of the storage box 2 is held by the support plate 10 which is vertically projected from the vertical partition plate 4, and the support plate is formed because the rear space and the side surface space of the storage box 2 are partitioned. Vent holes 12 are also formed at predetermined intervals also on both side edges of the vertical partition plate 4 outside (side) 10 of the vertical partition plate 4.

As described above, in the high-humidity refrigerator according to the present invention, the air blown by the blower fan 6 is once cooled by the evaporator 7 of the refrigeration cycle, and the horizontal partition plate 5 is used.
And, it is guided by the vertical partition plate 4 and flows toward the ceiling portion of the casing 1. At that time, in the vertical partition plate 4 according to the present embodiment, a part of the flowing air is blown out toward the back surface of the storage box 2 due to the relationship that the ventilation holes 12 are formed at the predetermined intervals. The air blown to the back surface of the storage box 2 flows along the back surface of the storage box 2 because it is partitioned by the support plate 10. Further, the cooling air that has not escaped from the ventilation holes 12 blows out to the ceiling part of the storage box 2 and flows along the side surface part of the storage box, but the opening provided in the horizontal partition plate 5 is installed on the door body side. Because of the relationship, it will flow diagonally downward. On the other hand, on the other hand, since the ventilation holes 12 are formed in the both side edges of the vertical partition plate 4, the air is blown out toward the side surface of the storage box 2, so that the storage box cannot be cooled by the air flowing from the ceiling. It is possible to sufficiently cool the side surface portion of the.

As described above, in the apparatus according to this embodiment, the ceiling portion, the back surface portion, both side surface portions, and the bottom surface portion of the storage box are cooled substantially evenly, so that the inside of the storage box 2 is substantially evenly cooled. Can be cooled. In addition, in the second embodiment shown in FIGS. 4 to 6, since approximately half of the lower portions of the partitions 13 and 14 are open, the left and right air are mixed. Therefore, when one of the plurality of door bodies is frequently opened, only the inside of the storage box will have an abnormal temperature rise. However, when the air around the storage box 2 circulates, the temperature of the adjacent chamber is increased. Due to heat exchange with air and mixing due to natural convection, one storage box is intensively cooled using three evaporators 7, and the temperature can be quickly lowered to a predetermined temperature. it can.

In the present embodiment, the storage box 2 is configured to be held by the support plate 10 vertically protruding from the vertical partition plate 4, but the present invention is not limited to this, and the support plate is not limited to this.
It is not necessary to divide the space by 10. Further, in this embodiment,
Although the size of the ventilation holes 12 is the same and the interval between the ventilation holes is narrowed, the invention is not limited to this, and the diameter of the holes increases as the vertical partition plate 4 goes upward. It is needless to say that the same effect can be obtained even if configured.

[0013]

As described above, in the device according to the present invention, ventilation holes are provided on the surface of the vertical partition plate (including both side edges) at predetermined intervals, and the cooling air flows substantially evenly on the five surfaces of the storage box. With this configuration, the inside of the storage box can be cooled substantially evenly, and since the inside of the storage box can be cooled uniformly, the inside of the storage box can be maintained at high humidity. Also, in the case where the lower part of the partition is opened, the cooling temperature of the storage box composed of several rows can be made substantially uniform, and the temperature inside the storage box can be quickly lowered to a predetermined temperature. is there.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a refrigerator according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a perspective view of a vertical partition plate.

FIG. 4 is a front vertical sectional view of a refrigerator showing a second embodiment according to the present invention.

FIG. 5 is a sectional view taken along line BB of FIG. 4;

FIG. 6 is a sectional view taken along line CC of FIG. 4;

[Explanation of symbols]

 1 Casing 2 Storage Box 4 Vertical Partition Plate 5 Horizontal Partition Plate 6 Fan 7 Evaporator 8, 9 Door Body 10 Support Plate 12 Vents 13, 14 Partition

Claims (2)

(57) [Claims] 1. A box-shaped casing made of a heat insulating material, one surface of which is open, a door body made of a heat insulating material for opening and closing the open surface of the casing, and a sealed space formed between five inner wall surfaces of the casing. The storage box composed of the arranged heat transfer panels and the back surface of the space between the storage box and the casing are arranged in the width direction.
A vertical partition plate that partitions over the entire surface, a horizontal partition plate that is connected to the vertical partition plate and partitions the space between the casing and the bottom or ceiling of the storage box, and a space partitioned by the horizontal partition plate an evaporator and a blower fan of the deployed refrigeration cycle, and an open portion communicating between said horizontal partition plate and the internal space and the external space provided on the end portion of the vertical partition plate perpendicularly from said vertical partition plate Projected on the back of the storage box and both
The vertical partition plate, which is composed of a support plate partitioning the side surface,
A high-humidity refrigerator characterized in that holes for ventilation are formed so that the intervals are narrowed from the lower side to the upper side including both side edges of the refrigerator. 2. A box-shaped casing made of a heat insulating material and having one surface open, a partition which divides the inside of the casing into a plurality of parts horizontally, and an opening surface of the casing partitioned by the partition. A storage box made of heat transfer panels arranged in a plurality of rows in a row so as to form a sealed space between the door body made of a plurality of heat insulating materials and the four inner walls of the casing and the partition, and the storage A plurality of vertical partition plates that partition the back surface of the space between the box and the casing, and a plurality of horizontal partition plates that partition the space between the casing and the bottom of the storage box that are connected to each vertical partition plate, Between the evaporator and the fan for the refrigeration cycle arranged in each space partitioned by the plurality of horizontal partition plates, and between the internal space and the external space provided at the end of each horizontal partition plate and the vertical partition plate. Communicating A high-humidity refrigerator characterized in that the vertical partition plate is provided with ventilation holes so that the interval becomes narrower from the lower side toward the upper side.