JPH10339552A - Cooling refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent dew formation at a glass door arranged at an opening of a storing chamber. SOLUTION: This refrigerator is constructed such that a rear part of a storing chamber 6 of a thermal insulated box 3 is formed with a duct 8. An upper part of the storing chamber 6 is provided with a cold air suction port 15. A buffle plate 16A for directing cold air discharged out of the duct 8 in an upward direction is arranged before a glass door 18 at the lower part of the storing chamber 6. Air sucked through the cold air suction port 15 by a blower 14 placed within the duct 8 is discharged in an upward direction by the buffle plate 16A at the lower part of the storing chamber 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling storage provided with a glass door for opening and closing a front opening of a heat insulating box.

[0002]

2. Description of the Related Art Conventionally, a so-called reach-in type low-temperature showcase installed in a supermarket, a convenience store, or the like has a storage room in an insulated box having a front opening, and the opening of the storage room is a glass door. It is openably closed. The glass door was filled with transparent glass so that the articles stored in the storage room could be visually recognized. In addition, a plurality of article storage shelves are provided in the storage room, and a duct is formed at the back of the storage room, and a cooler for cooling the storage room, a blower for circulating cool air, and the like are provided in the duct. Is provided.

Then, the cool air that has exchanged heat with the cooler rises in a duct formed in the back of the refrigerator by a blower, and blows out from a discharge port provided at the front end of the top of the storage room toward the upper rear surface of the glass door. After that, it descends and is sucked into the duct by the blower from the lower part of the storage room. Thus, the storage chamber is cooled to a predetermined temperature while forming an air curtain inside the glass door.

[0004]

As described above, in the prior art, since the cool air that has exchanged heat with the cooler is directly blown to the upper rear surface of the glass door, the glass door is overcooled. Therefore, there is a problem that the surface of the glass door (the outer surface of the refrigerator) is cooled by heat conduction, and the moisture in the outside air that comes into contact with the glass door is condensed and condensed. .

[0005] The present invention has been made to solve the above-mentioned conventional technical problem, and provides a cooling storage which can suppress dew condensation on a glass door provided at an opening of a storage room. With the goal.

[0006]

That is, the cooling storage of the present invention comprises a glass door for opening and closing the front opening of the heat-insulating box, and a duct formed on the back of the heat-insulating box. A cooler provided in the duct and a blower that circulates cool air that has exchanged heat with this cooler into the refrigerator, discharges cool air from the duct to the lower part of the refrigerator, and enters the duct from the upper part of the refrigerator into the duct. It is to suck.

The cooling storage according to the second aspect of the present invention is, in addition to the first aspect, provided with a baffle member for directing the cool air discharged from the duct upward in front of the glass door in the lower part of the storage.

[0008]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of the cooling storage 1 of the present invention, and FIG. 2 is a vertical sectional side view of the cooling storage 1. The cooling storage 1 according to the embodiment is a so-called reach-in type low-temperature low-temperature showcase installed in a supermarket or a convenience store, and a main body 4 is constituted by a rectangular heat-insulating box 3 opened on the front surface. Inside, a storage room 6 (inside the storage) is formed.

A plurality of shelves 7 are vertically arranged at predetermined intervals in the storage room 6.
Are provided at a predetermined interval from a glass door 18 described later.

A glass door 18 is provided at the front opening of the heat-insulating box 3 (storage room 6), and the opening of the storage room 6 is closed by the glass door 18 so that it can be opened and closed. Also,
A machine room 10 is formed below the heat insulating box 3. In the machine room 10, a compressor 11 and a condenser 12 constituting a cooling cycle of the cooling device are installed. still,
18A is a handle for opening and closing the glass door 18, and 17 is a drain pan.

On the other hand, a partition plate 5 is attached to the back of the storage room 6 at a predetermined distance from the back wall of the heat-insulating box 3, and a partition plate 5 is attached to the heat-insulating box 3. A duct 8 extending up and down is formed therebetween. Further, the partition plate 5 is formed with a plurality of cold air discharge ports 9...

A lower duct 8A is formed on the bottom wall of the heat insulating box 3 (the bottom surface of the storage room 6) by baffle members 16 including front and rear baffle plates 16A and 16B. An upper duct 8B is formed by a fan case 21 below the wall (the top surface of the storage room 6).
The upper duct 8B communicates with the upper end of the duct 8, and the lower duct 8A communicates with the duct 8 at the lowermost cool air discharge port 9. The glass door 1 is located at the front end of the upper duct 8B.
8, a cold air inlet 15 is formed at a sufficient interval.

In the fan case 21, a blower 14 is provided.
The air blower 14 is operated so that air is sucked from the air suction port 15 when the blower 14 is operated. The duct 8 on the downstream side of the blower 14
A cooler 13 that constitutes a cooling cycle of the cooling device is provided vertically in the upper portion, and the cooler 13 forms a well-known refrigerant circuit together with the compressor 11 and the like.

The baffle plate 16A constituting the lower duct 8A is located inside (front side) of the glass door 18, and the baffle plate 16B is connected to the lower end of the partition plate 5. A glass door 18 is provided behind the baffle plate 16A.
Discharge section 9A which opens on the upper surface at a sufficient interval
Is provided.

With the above configuration, when the compressor 11 is operated, the high-temperature and high-pressure gas refrigerant discharged from the compressor 11 is condensed and liquefied in the condenser 12 and decompressed by a decompression device (not shown). It flows into the cooler 13 to exert a cooling action. The condenser 12 into which the high-temperature and high-pressure gas refrigerant has flowed is dissipated by blowing air (not shown in FIG. 2) of a blower (not shown).

Then, the blower 14 is operated, and the cool air (the black arrow in FIG. 2) of the storage room 6 sucked from the cool air suction port 15 of the upper duct 8B exchanges heat with the cooler 13, and then the inside of the duct 8 becomes black. It descends as shown by a thick arrow and is blown out into the storage chamber 6 from each of the cool air discharge ports 9.

In particular, the cool air discharged from the cool air discharge port 9 at the lowermost part of the duct 8 flows into the lower duct 8A from the baffle plate 16B and reaches the baffle plate 16A. Therefore,
The cold air is further increased by the glass door 18 by the baffle plate 16A.
Is prevented from moving to the side, and is blown out vigorously upward (black thin arrows in FIG. 2) from the cold air discharge section 9A formed in the lower duct 8A. The blown cold air rises through the space between the glass door 18 and each of the shelves 7.

The cool air thus blown out into the storage room 6 circulates in the storage room 6, is sucked into the fan case 21 from the cool air suction port 15 by the blower 14, and returns to the upper part of the duct 8. Thereby, the storage room 6 is cooled to a predetermined cooling temperature.

As described above, in the present invention, since the cool air blown out of the duct 8 is not directly attracted to the rear surface of the glass door 18, the glass door 18 is supercooled, and the occurrence of dew condensation on the outer surface is prevented. It is possible to do.

[0020]

As described above in detail, according to the present invention, in a cooling storage provided with a glass door for opening and closing a front opening of a heat insulating box, a duct is formed in the back of the heat insulating box, and the inside of the duct is formed. A cooler is provided, and the cool air that has exchanged heat with the cooler is circulated into the refrigerator by a blower, and the blower discharges cool air from the duct to the lower part of the refrigerator and sucks it into the duct from the upper part of the refrigerator. Therefore, it is possible to prevent the glass door from being overcooled and causing dew condensation on the front surface thereof as in the conventional air curtain cooling by flowing cool air from above to below inside the glass door.

According to the second aspect of the present invention, in addition to the above, the baffle member for directing the cool air discharged from the duct upward in front of the glass door is provided in the lower part of the refrigerator, so that the cool air discharged from the duct is discharged from the duct. It is possible to effectively prevent the cold air from being directly blown to the glass door. Thereby, dew condensation on the front surface of the glass door can be more favorably eliminated.

[Brief description of the drawings]

FIG. 1 is a perspective view of a cooling storage according to the present invention.

FIG. 2 is a longitudinal sectional side view of the cooling storage of FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cooling storage 3 Heat insulation box 5 Partition plate 6 Storage room (inside of a warehouse) 7 Shelf 8 Duct 8A Lower duct 8B Upper duct 9 Cold air discharge port 9A Cold air discharge part 10 Machine room 11 Compressor 12 Condenser 13 Cooler 14 Blower 15 Cold air inlet 16 Baffle member 16A Baffle plate 16B Baffle plate 18 Glass door

Claims (2)

[Claims] 1. A cooling storage provided with a glass door for opening and closing a front opening of a heat-insulating box, comprising: a duct formed at a back portion of the inside of the heat-insulating box; a cooler provided in the duct; A cooling device that has a blower that circulates cool air exchanged with the cooler into the refrigerator, the blower discharges cold air from the duct to a lower portion of the refrigerator, and sucks the cool air into the duct from an upper portion of the refrigerator. . 2. The cooling storage according to claim 1, wherein a baffle member for directing cool air discharged from the duct upward in front of the glass door is provided in a lower part of the storage.