JPH0328291Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a refrigerated storage case, and particularly to an air duct for guiding cold air into the refrigerator.

[Conventional technology]

Conventionally, there are the following types of refrigerating cases of this type, and the arrows indicate the flow of cold air.

That is, as shown in FIG. 5, both the cold air blowing part 1 and the suction part 2 are designed like decorative frames to improve their appearance, and their height is also low.

Further, as shown in FIG. 6, a cylindrical air duct 5 provided on the structural member 4 of the case portion 3 or inside thereof
The cold air is guided through the openings 6, and the cold air is discharged from openings 6 provided at various locations between the bottom and the top.

Furthermore, the one shown in FIG. 7 is one in which a guide plate 8 is provided on the opposite side of the side wall 7 with the blow-off part 1 in between so that cool air passes along the side wall 7. It is used for.
Therefore, according to this, the cold air rises from the blowing part 1 while being guided by the guide plate 8 and the side wall 7,
It flows over the top of the container and into the refrigerator.

[Problem that the invention attempts to solve]

Conventional refrigerated case, especially its outlet part 1
Since it is configured as described above, it includes the following problems.

That is, in the case shown in FIG. 5, since the blow-off part 1 is provided close to the side wall 7, condensation occurs on the side wall 7, and the blow-off part 1 is provided at a lower part. For the upper and lower parts, especially
The problem is that it is difficult to equalize the temperature between the upper and lower shelves.

Furthermore, in the case shown in FIG. 6, since the cold air duct 5 is close to the structural member 4,
Dew easily forms on the structural members 4, and since there is no obstruction near the side wall 7 and the air moves freely, dew may occur due to heat exchange with the discharged cold air, and the cooling efficiency may be reduced. The problem is that it can get worse.

Furthermore, in the case shown in FIG. 7, since the cold air comes into direct contact with the side wall 7, problems such as dew formation and a decrease in cooling efficiency occur.

Furthermore, in all three of the above examples, since the air duct is provided independently, there is also the problem that the shelf support member must be provided separately.

In this way, conventional refrigerated cases have problems such as cold air not reaching the upper part and circulating only in the lower part, and a large variation in temperature distribution due to the small number of discharge ports. There is also the problem that dew tends to accumulate on the outside and component parts because the cold air hits the surrounding parts or the discharged cold air directly hits the surroundings, and as a result, heat exchange with the outside increases and cooling efficiency deteriorates. ,
Another problem was that when the door was opened, a large amount of cold air leaked out. Furthermore, a separate shelf support member is required and the structure becomes complicated, and there is also the problem that products are placed in a warm place near the side wall, impairing their quality.

This idea was made to solve these conventional problems, and it allows cold air to flow uniformly throughout the refrigerator, preventing variations in temperature distribution. The object of the present invention is to obtain a refrigerated case with a simple structure, which prevents dew from coming into direct contact with dew and structural members, and improves cooling efficiency.

[Means for solving problems]

To achieve this objective, the present invention provides a housing including at least one pair of side walls defining a refrigerating chamber above and a cold air generating chamber below; In the refrigerating case, the bottom plate is disposed between side walls and has a ventilation hole formed therein to allow cold air communication between the refrigerator compartment and the cold air generation chamber, and the ventilation opening is located near the pair of side walls. has at least a first opening formed at each end of the bottom plate and a second opening formed between the first openings, and above each of the first openings is a hollow communicating with the first opening. and one or more openings communicating with the hollow part and opening toward the second opening side, the shelf support member having one or more openings communicating with the hollow part and opening toward the second opening side, the shelf support member having one or more openings communicating with the hollow part and opening toward the second opening side, and one of the first openings and the second opening. The invention is characterized in that a cold air circulation path is formed between the first opening and between the other one of the first openings and the second opening.

[Effect]

Since the refrigerated show case of this invention is constructed as described above, the cold air discharged from the first opening is directly guided into the hollow part formed in the shelf support member, and then flows out from the upper opening. However, the outflow location is divided into several stages, upper and lower, and moreover,
Since the outflow direction is toward the second opening, that is, toward the inside of the refrigerator, the discharged cold air flows evenly into the refrigerator in the vertical direction. Of course, if necessary, the density of the outflowing cold air can be varied, for example, above and below the shelf, by arranging the openings not uniformly, but by adjusting the density, size of the openings, etc. to desired values.

Further, since the shelf support member and the side wall are separated from each other, the air in this part does not move much, so it has a heat insulating effect, and therefore, there is less dew on the side wall.

〔Example〕

This invention will be explained below based on the drawings showing one embodiment of the invention.

1 to 3, reference numeral 11 indicates a refrigerated case, 12 a cooler, and 13 a cooler 1.
2, a cross-flow fan that sends the cold air generated by 2 into the refrigerator (refrigeration room) 15 through a discharge port (first opening) 14, which is a ventilation port; 16 is a product to be refrigerated;
Reference numeral 7 denotes a suction port (second opening) which is a ventilation port for circulating the air that has cooled the interior 15 of the refrigerator from the interior 15 of the refrigerator to the cooling chamber;
18 is a side glass which is a side wall surrounding the chamber interior 15;
Reference numeral 9 denotes a housing consisting of a ceiling and a front glass, and this housing 19 includes the above-mentioned side wall or side glass 18. 20 is the temperature sensing part of the thermostat 21, 22 is the bottom plate of the case,
A cooling chamber (cold air generation chamber) is provided at the bottom of the case bottom plate 22.
A machine room 24 is provided below the cooling chamber 23 via a heat insulating material, and a shelf support member 25 is provided above the discharge port 14.

Next, the details of the shelf support member 25 will be explained.
In FIG. 3, the shelf support member 25 has an opening 26 at the lower end.
It has a hollow part 27 inside, the upper part of which communicates with an opening 28 of a desired shape and size, and the opening 26 at the lower end communicates with the discharge port 14 provided in the case bottom plate 22. The openings 28 formed in the upper part and communicating with each other are arranged at desired positions and with a desired density, and the openings are oriented toward the inside of the refrigerator interior 15, that is, toward the suction port 17 side. has been done.

Further, a required number of shelf holders 30 on which the shelves 29 are placed are provided on a predetermined surface of the shelf holder member 25.

Since the upper stage generally undergoes a large amount of heat exchange with the outside, a large number of openings 28 are provided in the upper part 31 so that a large amount of cold air can be discharged.

Since the embodiment of this invention is constructed as described above, the cold air sent out by the cross flow fan 13 enters the hollow portion 27 through the discharge port 14 and the opening 26 of the shelf support member 25 that communicates with the discharge port 14. After opening, the opening 28 communicating with the inside 15
It flows towards the inside of the body. In this way, inside 15
The cold air flowing inside exchanges heat with the stored products 16, the housing 19, etc., increases its temperature, and then is sucked into the suction port 17 and cooled again.

Also, since this cold air flows from the shelf support member 25 toward the inside of the refrigerator interior 15, it hardly flows into the space 32 between the shelf support member 25 and the side glass 18, and therefore, the air in this area does not move. Therefore, it has a heat insulating effect.

In the above embodiment, the shelf support member 25 is formed into a rectangular shape, but the shape is not limited to this, and it may be formed into an irregular shape as shown in FIG. Any of these may be used, and furthermore, the shape thereof does not need to be an elongated hole, and may be any shape necessary.

Further, in the above embodiment, the shelf support member 25 is provided at the discharge port 14, but the invention is not limited to this, and the shelf support member 25 may be provided at both the discharge port 14 and the suction port 17. The suction port 17 may be provided, or the positions of the discharge port 14 and the suction port 17 may be exchanged.

Furthermore, the shelf support member 25 may be made of a transparent material, which has the advantage that the view into the refrigerator is not obstructed.

[Effect of idea]

As described above, according to this invention, the following effects can be obtained.

First, in the refrigerating case of this invention, the cold air from the first opening flows out from the opening toward the second opening at a desired position, so that the desired temperature distribution can be obtained uniformly and the temperature distribution can be changed. There is no variation, and since the flow of cold air does not directly hit the side walls or structures, there is no dew on them.Furthermore, the cooling effect is enhanced by creating a heat insulating effect between the side walls and the structure. Since the air duct is provided within the shelf support member, the structure is simple, and a refrigerated case that can be molded with resin if necessary is obtained.

If these are described individually, the following effects can be obtained. In other words, (1) Since cold air can be discharged simultaneously to the upper and lower stages in a well-balanced manner, the cold air reaches the entire area of the refrigerator quickly, resulting in a uniform temperature distribution within the refrigerator.
In the case of an embodiment in which cold air is discharged from the opening toward the inside of the refrigerator, there is little leakage of cold air when the door is opened.

(2) Since the shelf support member is separated from the side wall and an air layer is formed between them, the coldness of the hollow part in the shelf support member does not affect the side wall, and therefore there is no dew formation. In addition, the air layer is not affected by the cold air flow and does not move much, so it exhibits a heat insulating effect and improves cooling efficiency. Furthermore, since the cold air is discharged toward the second opening side and does not directly hit the surrounding wall, there is no dew buildup on the side wall, etc.
Further, a decrease in cooling efficiency due to heat exchange with the peripheral wall can also be suppressed.

(3) Since the shelf support member blocks the space between the product and the side wall, the product can be stored in contact with the side wall, eliminating the risk of quality loss.

(4) Since the air duct is installed in the shelf support member, there is no need to provide the shelf support member and the air duct separately. Therefore, the structure is simple and streamlined, and the shelf support member and air duct can be integrated. It can be molded with resin, reducing costs.Furthermore, if it is made of a transparent resin material, it is possible to suppress the discomfort caused by the presence of a shield.

[Brief explanation of drawings]

FIG. 1 is an external perspective view of an embodiment of the refrigerated case according to this invention, FIG. 2 is a schematic cut-away diagram along the - line in FIG. 1, and FIG. 3 is a detailed perspective view of the shelf support member in FIG. 1. FIG. 4 is a detailed perspective view of another embodiment of the shelf support member of this invention, and FIGS. 5, 6, and 7 are perspective views schematically showing three examples of conventional refrigerated storage cases. 11...Refrigerated case, 14...Discharge port (first opening), 15...Inside the refrigerator (refrigeration room), 17...
Suction port (second opening), 18... Side glass (side wall), 19... Housing, 22... Case bottom plate (bottom plate), 23... Cooling chamber (cold air generation chamber), 25...
... Shelf support member, 27 ... Hollow part, 28 ... Opening.

Claims (1)

[Scope of utility model registration request] A housing 19 includes at least one pair of side walls 18 defining a refrigerating chamber 15 above and a cold air generating chamber 23 below, and a housing 19 disposed between the side walls 18 to partition the refrigerating chamber 15 and the cold air generating chamber 23 from each other. In the refrigerating case, the ventilation opening is provided with a bottom plate 22 in which a ventilation opening is formed to allow cold air communication between the refrigerator compartment 15 and the cold air generation chamber 23. First openings 14 respectively formed in the adjacent bottom plate ends
and a second opening 17 formed between the first opening 14.
above each of the first openings 14 is a hollow portion 27 that communicates with the first opening 14.
and one or more openings 28 communicating with the hollow portion 27 and opening toward the second opening 17 side.
A shelf support member 25 is vertically installed between one of the first openings 14 and the second opening 17, and between the other of the first openings 14 and the second opening 1.
A refrigerated case characterized in that a cold air circulation path is formed between 7 and 7.