JPH05164453A - High-humidity box - Google Patents

Abstract

PURPOSE:To prevent drying in a cold room by uniformly flowing cold air in the cold room along the surface of a rear face duct regarding the air-path constitution of a high-humidity box. CONSTITUTION:A discharge control holder 39 is fixed to the rear face duct 23 of the rear of a cold room 25, and the end section of the discharge section 38 of a cold-room cold-air circulating duct 36 is supported. The rear face duct 23 and the end section of the discharge section 38 of the cold-room cold-air circulating duct 36 are constituted while ensuring a fixed clearance A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high humidity cabinet equipped with a cool air circulation duct in a refrigerator for a refrigerator requiring high humidity.

[0002]

2. Description of the Related Art In recent years, from the viewpoint of maintaining freshness in food preservation, various techniques such as refrigeration preservation, frozen preservation, partial preservation and high humidity preservation have been put into practical use. Among these technologies, the high humidity chamber forms a cold air circulation duct by enclosing ducts on the upper, lower, left and right, and the rear, excluding the front, to increase the humidity inside the chamber. For example, JP-A-3-1073).

An example of a high humidity chamber equipped with the above-mentioned conventional cool air circulation duct will be described below with reference to the drawings.

4 to 5 show a conventional high humidity chamber.
In the figure, 1 is the main body of the high humidity chamber, and the main body 1
Is composed of an outer box 2, an inner box 3 and a heat insulating material 4.
1 has an opening 5 for storing and taking out foods and the like, and a pivotable heat insulating door 6 which can be opened and closed is provided in the opening 5. On the lower surface of the main body 1, four legs 7 that support the main body 1 are provided. A machine room 8 for the refrigeration system is formed on the upper part of the main body 1.

An opening 9 is provided on the upper surface of the main body 1, and a heat insulating panel 10 covering the opening 9 is provided. Above the heat insulating panel 10, the condenser 11, the blower 12, and the blower 12 thereof are provided. A compressor 13 is provided on the leeward side, a blower 14 for suction is provided on the lower side, an evaporator 15 is provided on the leeward side of the blower 14, a cover 16 covering the evaporator 15 and a fan ring 17 for the blower 14 are provided. And the cover 1
6 and the fan ring 17 and a space 18 below the fan ring 17, and an upper surface duct 19 is provided through a mounting plate (not shown). The space 18 where the cover 16 and the upper surface duct 19 face each other; The space 18 facing the duct 19 is partitioned by the cover 16 and a partition plate 20 attached to the upper duct 19.

The left and right side ducts 22 and 22 are attached to the left and right sides of the upper surface duct 19 and have a space 18 in the inner box 3 through a mounting plate (not shown).
Is provided, and the rear duct is attached to the rear portion of the upper surface duct 19 and the left and right side surface ducts 21 and 22, respectively, and has a space 18 in the inner box 3, and the rear surface duct 23 is provided, and the rear surface duct 23 and the left and right side surface ducts 21, 22 and each of which is attached to the inner box 3 and has a space 18 in the inner box 3, a bottom duct 24 is provided, and the left side duct 21, the right side duct 22, the rear duct 23, and the bottom duct 24 are provided between the inner box 3 and Each has a space that communicates with each other. 25 is a refrigerating room.

Numeral 26 is a cold air suction duct whose both ends are open,
The lower surface opening 27 communicates with the space 18 and the upper surface opening 28 communicates with the air passage on the suction side of the cooling system, which are provided on the left and right inner sides of the inner box 3, respectively. Reference numeral 29 denotes a refrigerating compartment cold air circulation duct, which has a suction port 30 for sucking the cool air in the refrigerating compartment 25, and a fan ring 32 holding a blower 31.
A discharge port 3 for discharging cool air
It is composed of 4. Reference numeral 35 is a shelf for storing the stored items.

The operation of the high humidity chamber constructed as described above will be described with reference to the flow of cold air with reference to FIGS. 4 and 5.

First, a refrigerating device mounted on the upper part of the main body 1 performs a refrigerating cycle, and the cool air having undergone heat exchange in the evaporator 15 circulates and cools a space 18 by a blower 14.
Then, with the lapse of time, the upper surface duct 19, the left side surface duct 21, the right side surface duct 22, the rear surface duct 23, and the bottom surface duct 24 are cooled and the heat is conducted to the refrigerating room 25, so that the entire room is cooled. Then, the cool air in the refrigerating compartment 25 is circulated by the blower 31 in the refrigerating compartment cold air circulating duct 29 provided in the refrigerating compartment 25, and the interior of the refrigerating compartment 25 is cooled.

[0010]

However, in the above-mentioned structure, the discharge port 34 of the cold air circulation duct 29 for the refrigerating compartment is formed.
The discharged cool air diffuses and flows directly to the shelf 35.
There was a problem of drying the stored items (refrigerated food, etc.) placed on the table.

Further, the discharge port 3 of the cold air circulation duct 29 of the refrigerating room
The four end portions also have a problem that if the distance in the depth direction is large, the mounting work becomes difficult, such as being out of reach.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to uniformly discharge the cool air discharged from the blower in the refrigerating chamber downward along the surface of the rear duct.

It is another object of the present invention to be able to support the end portion of the discharge port of the cold air circulation duct of the refrigerating room without tools.

[0014]

In order to solve the above problems, the high humidity cabinet of the present invention is provided with a discharge control holder in the rear duct of the rear part of the refrigerating compartment and supports the end of the discharge port of the refrigerating compartment cold air circulation duct. The end of the discharge port of the rear duct and the cold air circulation duct of the refrigerating chamber is secured in a certain gap.

[0015]

According to the present invention, with the above-described structure, a stable amount of cool air can be discharged downward along the surface of the rear duct on the rear surface of the refrigerating chamber.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A high humidity chamber according to an embodiment of the present invention will be described below with reference to the drawings. The same components as those of the conventional example are designated by the same reference numerals, and detailed description thereof will be omitted.

FIGS. 1, 2 and 3 show a high humidity chamber according to an embodiment of the present invention, and 36 is a cold air circulation duct for a refrigerating room,
A suction port 37 is provided at one end and a discharge port 38 is provided at the other end. Reference numeral 39 denotes a discharge control holder in which a substantially U-shaped portion 40 and a stepped portion 41 are formed. The discharge control holder 39 is fixed to the rear duct 23 and supports the end portion of the discharge port 38 of the refrigerating compartment cold air circulation duct 36, and the rear duct 23 and the refrigerating compartment. The end portion of the cold air circulation duct 36 has a constant gap A (a size smaller than the diameter of a water drop due to surface tension, about 2 m).
m). The arrows in FIGS. 1 and 2 indicate the direction of the flow of cold air.

The operation of the high humidity chamber constructed as described above will be described below with reference to the flow of cold air with reference to FIGS.

First, a refrigerating cycle is carried out by a cooling device mounted on the upper part of the main body 1, and the cool air having undergone heat exchange in the evaporator 15 circulates and cools the space 18 by a blower 14.
Then, with the passage of time, the upper surface duct 19, the left side surface duct 21, the right side surface duct 22, the rear surface duct 23, and the bottom surface duct 24 are cooled, and the heat is conducted to the refrigerating room 25 to cool the entire room. Then, by the blower 31 in the refrigerating compartment cold air circulation duct 36 provided in the refrigerating compartment 25,
Cold air flows from the suction port 37 of the refrigerating room cold air circulation duct 36 to the discharge port 38 with a constant gap A maintained by the discharge control holder, and the inside of the refrigerating chamber 25 is uniformly circulated and cooled.

According to the present embodiment, by providing the refrigerating compartment cold air circulation duct 36 and providing a constant gap A at the discharge port 38, a uniform flow of the cool air along the surface of the rear duct 23 can be achieved, and the refrigerating compartment 25 inside. It is possible to prevent the drying.

[0021]

As described above, according to the present invention, the cooling air in the refrigerating compartment is provided with the discharge control holder for maintaining a constant gap at the end of the outlet of the cold air circulating duct. A uniform flow can be achieved along the surface, and it is possible to prevent the stored items (refrigerated foods, etc.) placed on the shelf from drying without flowing directly onto the shelf.

Water droplets adhering to the surface of the refrigerating compartment cold air circulation duct in order to maintain a constant gap (a size smaller than the diameter of the water droplet due to surface tension, about 2 mm) are attached to the end of the outlet of the refrigerating compartment cold air circulation duct. It flows, but because of the small gap at its end, it flows down along the surface of the rear duct due to surface tension.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of an upper portion of a high humidity chamber according to an embodiment of the present invention.

FIG. 2 is a top front view of the high humidity chamber shown in FIG.

FIG. 3 is a perspective view of essential parts of the high humidity chamber shown in FIG.

FIG. 4 is a vertical sectional view of a conventional high humidity chamber.

5 is a plan cross-sectional view of the high humidity chamber shown in FIG.

[Explanation of symbols]

 1 Main Body 2 Outer Box 3 Inner Box 4 Insulation Material 5 Opening 6 Insulation Door 8 Machine Room 19 Top Duct 21 Left Side Duct 22 Right Side Duct 23 Rear Duct 24 Bottom Duct 25 Refrigerator 26 Cold Air Suction Duct 31 Blower 32 Fan Ring 36 Refrigerator cold air circulation duct 37 Suction port 38 Discharge port 39 Discharge control holder 40 Substantial U-shaped portion 41 Stepped portion

Claims (1)

[Claims] 1. An outer box, an inner box, a main body having an opening in the front face and having a heat insulating material filled between the two boxes, a heat insulating door provided in the opening to be openable and closable, and a main body of the main body. A machine room for cooling is provided in the upper part to form a cool air suction duct inside both side plates of the inner box, and a cool air circulating air passage around the inner top surface, bottom surface, rear surface and both side surfaces of the inner box. A duct, a refrigerating compartment formed inside the cold air circulation air passage, a blower for circulating the cool air in the refrigerating compartment above the refrigerating compartment, a fan ring for holding the blower, and the blower and the fan ring. A refrigerating room cold air circulation duct that forms an air passage for cold air circulation with a suction port provided on the front surface of the cover was provided, and the end of the outlet of the refrigerating room cold air circulation duct was held and supported by the rear surface duct of the refrigeration room rear surface. Equipped with a substantially U-shaped part and a cool air discharge control holder with a stepped part High humidity chamber, characterized in that was.