JPS60194271A - High humidity refrigerated counter utilizing outside air - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a high-humidity refrigerated showcase that utilizes outside air.

Conventionally, in this type of closed refrigerated showcase, this method was used to humidify the air inside the refrigerator.

A method using an ultrasonic humidifier has been adopted. With this method, not only does tap water need to be replenished regularly, but inorganic salts such as calcium contained in the water particles discharged from the ultrasonic humidifier become white powder in the refrigerator and remain behind. However, there was a drawback that the particles and oil floating in the air adhered to the structures and products inside the warehouse.

The purpose of the present invention is to convert the air outside the warehouse into dew. By introducing the dew into the inside of the box, dripping dew from multiple holes drilled at the bottom, and applying cold air from two ventilation channels, the above-mentioned drawbacks of the conventional method are removed and the air inside the box is kept at high humidity. To provide a high-humidity refrigerated showcase that utilizes outside air.

According to the present invention, a forced circulation type refrigerated showcase in which a refrigerant evaporator is arranged in the upper part 2 or the lower part of the refrigerator, and the air inside the refrigerator is cooled through the ventilation passage formed by the internal circulation fan. In this case, a dusting Jig box having a plurality of holes for dripping dew water is provided at a position in contact with the ventilation path, and a dew collecting tray is provided at the bottom of the box to catch the dew dripping from the holes of the dew dripping deck 2. By introducing air from outside the refrigerator into the inside of the dew condensation index via an insulating hose, dew that has formed on the inner surface of the dew condensation index is removed from the plurality of holes into the dew pan. and passing the cold air from the ventilation path through the dripping water droplets.

A high-humidity refrigerated showcase using outside air, which is characterized by humidifying the air inside the refrigerator, is obtained.

Next, a high-humidity refrigerated showcase according to the present invention will be described with reference to two embodiments and drawings.

FIG. 1 shows the structure of a first embodiment of the present invention in a side sectional view. This example shows a case where the evaporator 1 is placed at the bottom of the refrigerator and is applied to a forced circulation refrigerated showcase in which a fan motor 2 for air circulation forms a ventilation path inside the refrigerator. . At the top of the chamber, there is a dew drip box 3 with a plurality of holes 3a on the bottom for dripping dew water.
is installed. Outside air is introduced into the interior from the side of the dew condensation box 3 through a dust filter 6 fitted into a hole previously drilled in a heat insulating wall 5 by a hose 4. Is the outside air condensing? When the outside air is introduced into the box 3, the outside air inside the box is cooled due to the temperature difference between the inside and outside of the box 3, and two dew condensates on the inside of the box 3. Dew? A dew pan 7 is placed under the box 3 to collect the dew that has formed on the tray.

It drips from the hole 3a drilled below and is received on the dew pan 7. The condensation tray 7 is sloped in advance as shown in the figure, and the collected water falls to the bottom of the refrigerator through a drain tube 8, and then is stored in the lower part outside the refrigerator together with the compressor 9, etc. The water flows into a drainage tank 10 which is provided with water. According to such a structure, an air circulation path is formed between the lower part of the dew condensation cup 3 and the dew pan 7, so that the air passing through this path passes through the water droplets dripping from the dew condensation cup 3. By doing so, it becomes moist and the inside of the refrigerator can be kept at high humidity. In Figure 2, 11 is the front glass, 12 is the rear sliding door, and 13-1.13
-2 is a shelf board, and 14 is a bottom plate which is also used to form an inlet and an outlet of the ventilation passage.

FIG. 2 is a perspective view showing a specific external shape of the dew-condensing index 3 in the embodiment shown in FIG. According to this figure, two hoses 4a and 4b are used to introduce outside air,
This results in the second dew.

In other words, the humidity inside the refrigerator can be increased. Further, FIG. 3 is a diagram for explaining the humidifying effect when the heater 7a is attached to the inclined surface of the dew pan 7 in the embodiment shown in FIG. If you do it like this.

The water droplets dripping from the dew box 3 are warmed by the heater 7a and their evaporation is promoted, resulting in a greater humidifying effect.

4(a) and 4(b) show other examples of the dew condensation gas applied to the embodiment of FIG. 1 through a sectional view and a perspective view, respectively, of installation on a heat insulating wall. .

As shown in the figure, an outside air suction hose 4'a and an exhaust hose 4'b are connected to the dew condensation box 3'. A small fan motor 15 provided inside the dew forcibly introduces outside air into the dew condensation deck. The introduced outside air passes through the exhaust hose 4'b and is discharged to the outside of the refrigerator. Therefore,
Outside air is introduced into the refrigerator and only the moisture in the outside air is extracted, and the dehumidified outside air is discharged outside the refrigerator.This prevents the outside air from reaching the interior of the refrigerator and increases the temperature inside the refrigerator. It is possible to prevent the increase in

FIG. 5 is a side sectional view showing the structure of a second embodiment of the present invention. This example shows a case where the evaporator 21 is placed in the upper part of the refrigerator and is applied to a forced circulation cold showcase in which a fan motor 22 for air circulation forms a ventilation path inside the refrigerator. . Dew Gex 23
is provided below the first dew pan 27a that receives dew drops from the evaporator 21. Therefore, a second dew pan 27b is further provided below the first dew box 23.

The dew condensation gas 23 is of the type described in FIG. The outside air is sucked into the dew box, and the dehumidified outside air is discharged to the outside of the warehouse by the exhaust hose 24b.

When the second dew pan 27b receives the dew dripping from the plurality of holes made on the bottom surface of the second dew box 23, it passes through the drain tube 28 together with the water stored in the first dew pan 27a to the storage chamber. It fell to the bottom inside.

Pour into the drainage tank 30. Here, the fan motor 22 for internal circulation is positioned so that an efficient ventilation path is formed between the two dew condensation boxes 23 and the second condensation pan 27b, as in the case of the first embodiment. has been selected. In addition,
According to this example.

Since the dew condensation box is placed directly below the evaporator, cooling efficiency is high and a large amount of dew is generated within the box, resulting in a large humidifying effect.

FIG. 6 is a side sectional view showing the structure of a third embodiment according to the present invention. This example shows a case where the evaporator 21' is applied to a forced circulation type refrigerated showcase placed in the upper part of the refrigerator.

As shown in FIG. 2, the second dew box 23' is arranged vertically on the side of the evaporator 21', which is the same as the second embodiment described above. Therefore, one dew pan 27' can be used commonly for the evaporator 21' and the dew condensation box 23'. It is clear that even with such a configuration, the air inside the refrigerator can be humidified in the same way as in the second embodiment. Moreover.

According to this example, the evaporator 21' and the dew condensation box 23' can be housed together in the upper part of the refrigerator, which has the advantage of not only making it possible to take up a large storage space for products but also improving the appearance of the two products. .

As is clear from the above description, according to the present invention, the air outside the refrigerator is converted into dew. into the box.

Let the dew drip from the multiple holes drilled at the bottom 2
By applying cool air from the ventilation channels, it is possible to secure moisture for humidification without artificial replenishment and maintain the air inside the refrigerator at a high level of humidity. The effect obtained is significant in that the quality of the product can be maintained in good condition.

[Brief explanation of drawings]

FIG. 1 is a side sectional view showing the structure of the first embodiment of the present invention, FIG. 2 is a perspective view showing the specific outline of the dew condensation box in the embodiment of FIG. 1, and FIG. Figures 4 (,) and (b), which are diagrams for explaining the humidifying effect when a heater is attached to the inclined surface of the dew pan in the embodiment shown in Fig. 1, are applied to the embodiment shown in Fig. 1. A sectional view and a perspective view of installation on a heat insulating wall, showing another example of a dew trap, No. 5
FIG. 1 is a side sectional view showing the structure of a second embodiment of the present invention. FIG. 6 is a side sectional view showing the structure of a third embodiment according to the present invention. In the figure, 1, 21, 21' are evaporators, 2゜2
2 is the fan motor, 3, 3/, 23.23' is the dew condensation box + 3 m is the hole y 4 p 4 & p 4
'at 4 b +4'b, 24a and 24b are hoses, and 5.25 is a heat insulating wall. 6.6', 26 is fu 4A/evening, 7.27a, 2.7
b y27' is a dew pan, 7m is a heater, 8.28 is a drain tube, and 15.35 is a small fan motor. Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] 1. In a forced circulation refrigerating showcase in which a refrigerant evaporator is disposed in the upper or lower part of the refrigerator, and the air inside the refrigerator is cooled through a ventilation path formed by an internal circulation fan, the ventilation path is A dew condensation index with a plurality of holes for dripping dew water is provided at the contact position, and the dew condensation index is placed at the bottom of the dew condensation index. A dew catcher is installed to catch the dew dripping from the hole in the box.
By introducing air from outside the warehouse into the inside of the dew condensing index via an insulating hose, dew that has formed on the inner surface of the dew condensing index is dripped from the plurality of holes to the dew receiving tray. A high-humidity refrigerated showcase using outside air, characterized in that the cold air from the ventilation path is passed through the dripping water droplets to humidify the air inside the refrigerator.