JPS5849026Y2 - case - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a showcase with an improved structure of a drain tray.

Generally, in a natural convection type showcase in which a cooler is provided at the upper part of the storage, a drain tray and a shelf for placing objects to be cooled are provided in the storage, so that the water drips from the cooler. By receiving the drain in the drain tray, the object to be cooled is prevented from being bathed in drain water.

However, in the conventional type, the drain tray and the mounting shelf were provided separately, which resulted in a large number of parts and increased costs.

In addition, since the drain tray is installed above the mounting shelf,
There was a problem in that the cold air from the cooler was blocked by the drain tray, resulting in poor cooling efficiency for the objects to be cooled.

The present invention was developed in view of the above-mentioned circumstances, and its purpose is to reduce the number of parts by integrally forming the cooling object placement part on the drain tray, and to reduce the number of parts inside the drain tray. The present invention aims to provide a showcase that does not block the cold air from the cooler by providing a cold air ventilation path that penetrates the bottom and the above-mentioned mounting portion.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In the figure, reference numeral 1 denotes the main body of a cylindrical showcase. Inside the main body 1, a storage chamber 2 is provided in the upper part, and a machine room 3 is provided in the lower part.

A cooler 4 is provided in the upper part of the storage room 2, and a compressor and a condenser (not shown) are provided in the machine room 3. The refrigeration cycle is configured by communicating with each other through the refrigeration cycle.

In addition, a column 5 is erected in the center of the storage chamber 2, and a drain tray 6 having a U-shaped cross section is movable up and down.
, 6 are attached at predetermined intervals.

The inner bottom portions of the drain trays 6, 6 are communicated with the inside of the support column 5 through a communication hole 7, as shown in FIG.

Further, the inside of the support column 5 is communicated with a drain pan 8 provided on the bottom surface of the showcase body 1.

On the other hand, inside the drain tray 6, as shown in FIGS. 2 and 3, a large number of mounting portions 9 are integrally provided at predetermined intervals along the circumferential direction. , the object to be cooled 10 is placed on these placing portions 9 . . . .

In addition, through holes 11 and 12 that communicate with each other are bored in the inner bottom of the mounting portion 9 and the drain tray 6, and a cold air ventilation path 13 is formed by these holes 11 and 12. ing.

Therefore, when the refrigeration cycle is operated in the above-described configuration, the cooler 4 in the storage chamber 2 causes the object to be cooled 10...
... is cooled, but at this time the cold air flows into storage room 2.
While natural convection occurs inside, the drain water from the cooler 4 is dripped.

The cold air passes through the cold air ventilation path 13 of the drain tray 6 and convects, and the drain water is received by the drain tray 6 and then collected toward the center of the drain tray 6 through the communication hole 7 of the support column 5...
. . , into the support column 5, and then flows down and is stored in the drain pan 8.

As described above, the placement part 9 for the object to be cooled 10 is placed on the drain tray 6.
Because they are integrally provided, there is no need to manufacture the drain tray and the mounting shelf separately as in the past, and the number of parts can be reduced.

In addition, the inner bottom part of the drain dish 6 and the mounting part 9...
Since the cold air ventilation path 13 is formed by drilling through holes 11 and 12 that communicate with each other, the cooling efficiency of the objects to be cooled 10 is increased without interfering with the convection of cold air. It can be done.

The cooler 4 is formed into a spiral shape as shown in FIG. 4, with the refrigerant inlet 15 located at the outer peripheral end and the refrigerant outlet 16 located at the center.

According to this cooler 4, the heat exchange area can be increased relative to the installation space, and as shown in FIG. It is possible to improve the distribution and reduce the temperature difference.

Furthermore, as shown in FIG. 6, the defrosting time can be shortened, and as shown in FIG. 7, the thickness of frost formation can also be reduced.

Note that the solid lines in FIGS. 5 to 7 indicate the performance of the cooler of the present invention, and the dashed-dotted lines indicate the performance of the conventional cooler.

Furthermore, when the refrigerant inlet 15 is located at the center and the refrigerant outlet 16 is located at the outer peripheral end, the cooling rate can be increased as shown in FIG.

Note that the solid line in FIG. 8 indicates the performance of the cooler of the present invention, and the dashed-dotted line indicates the performance of the conventional cooler.

As explained above, in this invention, the cooling object placement part is integrated inside the drain tray, so there is no need to manufacture the drain tray and the placement shelf separately as in the past, reducing costs. be able to.

In addition, since a cold air ventilation path is provided in the inner bottom and the mounting portion of the drain tray that communicate with each other, the cold air from the cooler is not blocked by the drain tray, improving the cooling efficiency of the objects to be cooled. This has the effect of making it possible.

[Brief explanation of the drawing]

Figures 1 to 7 show one embodiment of the present invention, with Figure 1 being a perspective view showing a showcase, Figure 2 being a plan view showing the main part of the drain tray, and Figure 3 being a perspective view showing a showcase. III-I in Figure 2
A cross-sectional view taken along line II, FIG. 4 is a perspective view of the cooler, and FIG. 5 is a graph comparing the temperature distribution in the storage when using the proposed cooler and a conventional cooler. , Figure 6 is a graph showing the relationship between frost thickness and defrosting time.
Figure 7 is a graph showing the relationship between parts of the cooler and frost thickness, and Figure 8 is a graph showing the cooling rate when using another cooler of the present invention compared to the conventional one. be. 2... Storage room, 5... Pillar, 4...
...Cooler, 6...Drain pan, 9...
...Placement section, 13...Cold air ventilation path.

Claims (1)

[Scope of utility model registration request] A storage room, a pillar installed in the storage room, a cooler provided in the storage room, and a drain located below the cooler and provided on the pillar to receive drain dripping from the cooler. It comprises a saucer, a placement part that is integrally provided inside the drain saucer and on which an object to be cooled is placed, and a cold air ventilation path that is bored and communicates with the placement part and the inner bottom of the drain saucer. A showcase featuring the following.