JPS5928297Y2 - Open multi-tier showcase - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of an open multi-tiered showcase in which an article outlet provided at the front can be shielded by a cold air curtain.

This type of showcase is generally large in size and has a large internal volume, so it can display a large number of items.

However, since the internal temperature is maintained almost uniformly over the entire area, it is not suitable for displaying items that are stored at different temperatures, such as meat and dairy products, together.

Therefore, an object of the present invention is to provide an open multi-tiered showcase that can keep the temperature of the lower part of the refrigerator at a particularly low temperature.

Furthermore, in addition to achieving the above object, the present invention provides an open multi-tiered showcase with a simple structure suitable for maintaining the temperature range inside the refrigerator.

That is, the present invention not only shields the article takeout port with a cold air curtain, but also blows cold air toward the lower part of the refrigerator, and further separates the cold air for forming the curtain and the cold air blown toward the lower part of the refrigerator. This method is based on the fact that the refrigerant evaporator is divided into two evaporator sections that are partitioned off from each other, and the cold air from the latter is cooled more strongly than the cold air from the former.

According to this invention, the temperature in the lower part of the refrigerator is kept at a particularly low temperature, so meat can be displayed in the lower part of the refrigerator and dairy products can be displayed in other parts. To provide an open multi-stage showcase that can display the following items together and maintain a desired temperature range inside the refrigerator with a simple structure.

Examples will be described below with reference to the drawings.

In the open multi-tiered showcase shown in FIG. 1, an air passage 3 is provided along the wall of the case body 2 which has an article outlet 1 on the front side, and a first air passage is provided in the middle of this air passage 3. 4 and a second air path 5 are provided, and a fan 7 is provided in the air path 3 to direct air from the first air path 4 to a discharge port at the upper part of the mouth edge of the article outlet 1. The air in the second air passage 5 is blown out from the second outlet 10 provided in the back panel 9 toward the same inlet 14. Furthermore, two adjacent refrigerant evaporator sections 12 and 13, which are separated from each other by a partition iron plate 11, are installed at a position upwind of the branching point of the first and second air paths 4 and 5. The first and second air passages 4 and 5 are arranged in one-to-one correspondence.

As the detailed structure of the two evaporator parts 12 and 13 is shown in FIG.
131 combined with a large number of heat absorbing plates 122, 132, the heat absorbing plates 122°1 of both evaporator parts 12.13
A partition iron plate 11 is interposed between the edges of 32, and
The refrigerant evaporation tubes 121 and 131 are connected in series with each other, and have an integrated structure in which they are coupled to each other.

This can be easily obtained by cutting the heat absorption plate of one refrigerant evaporator at an appropriate position and joining the cut surfaces with a partition iron plate interposed therebetween.

Furthermore, the refrigerant evaporator consisting of these two evaporator sections 12.13 is connected in series with the refrigerant evaporator tubes 121.13.
1 are connected in series to the refrigerant circuit, and during operation, one evaporator section 12 is designed to have a cooling capacity as small as that of the other evaporator section 13, for example.

This can be achieved by varying the cross-sectional area of the evaporator, by varying the length of the refrigerant evaporation tube, by selecting the flow direction of the refrigerant, etc.

Although the air passage dividing member 6 is made by bending a part of the interior back plate 9, it can also be provided by attaching other members.

According to such an open type multi-stage showcase, air sucked into the air passage 3 by the fan 7 from the suction port 14 provided at the lower part of the mouth edge of the article takeout port 1 is passed through the two evaporator sections 12.
The air branches into the 13 heat absorbing plates 122 and 132 and flows into the air, is cooled separately and becomes cold air of different temperatures, and flows out into the first and second air passages 4 and 5, respectively.

The relatively weakly cooled air in the first air path 4 is blown out from the discharge port 8 toward the suction port 14 to form a cold air curtain 15 that shields the article outlet 1, while the second air path The relatively strongly cooled air 5 is discharged from the second discharge port 10 toward the suction port 14 to maintain the inner lower part of the case body 2 at a particularly low temperature.

In this way, during operation, the temperature of the upper part of the case body 2 is maintained at the storage temperature for dairy products (5 to 10°C), while the temperature at the lower part thereof is maintained at the storage temperature for meat, for example (approximately 0°C).
Therefore, it is convenient to display items that have different storage temperatures together, and it also has the advantage of being able to create a desired temperature range within the case body 2 with a simple structure. .

Note that 16 indicates an article display shelf.

[Brief explanation of drawings]

FIG. 1 is a schematic sectional view of an embodiment of an open multi-stage showcase according to the present invention, and FIG. 2 is a perspective view showing an example structure of a refrigerant evaporator. 1... Article removal port, 2... Case body, 3... Air path, 4... First air path,
5...Second air passage, 6...Air passage dividing member, 8...Discharge port, 10...Second discharge port, 11...・・・・Partition iron plate, 12, 13...
...Evaporator part.

Claims (1)

[Scope of utility model registration request] An air path is provided along the wall of the case body that has an article outlet on the front side, and a first and second
An air path dividing member is provided to branch into the first air path, and the air in the first air path is blown out from one end of the mouth edge of the article outlet toward the entrance of the air path at the other end. On the other hand, the air in the second air path is blown out from the inner surface of the back wall of the case body toward the entrance of the air path, and further upwind from the branch point of the first and second air paths. The refrigerant evaporator is divided into two evaporator sections with different cooling capacities, and the two evaporator sections are placed adjacent to each other via a partition plate. is the first
An open multi-stage showcase characterized in that an evaporator portion having a large cooling capacity is arranged to face the second air path.