JPH029350Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a closed refrigerating case capable of humidification.

[Overview of conventional technology]

BACKGROUND ART In closed refrigerated storage cases, particularly those used for selling Western confectionery, the interior of the refrigerator must be kept at high humidity to prevent the products from drying out in order to prevent deterioration in product quality. To this end, in the past, a cup filled with water was placed, for example, near the tray to increase the humidity inside the refrigerator. However, in reality, humidification is insufficient and it is difficult to completely prevent deterioration of product quality from the viewpoint of humidity. However, placing it near the tray, even in one corner, not only reduces the effective area but is also visually undesirable.

[Purpose of invention]

Therefore, an object of the present invention is to provide a closed refrigerating case that has a large humidifying capacity and has a simple structure.

[Structure of the idea]

According to the present invention, a dew pan is provided below the refrigerant evaporator in the refrigerator, and a plate is provided in the middle to divide the air flow into upper and lower halves, and moisture is taken in from the surface of the water accumulated in the dew pan. In a closed-type show case that sends high-humidity air downward into the refrigerator, the plate covers the entire lower surface of the refrigerant evaporator to shield heat radiation between the refrigerant evaporator and the dew pan; A closed type refrigerator having a drainage means for guiding dew dripping from an evaporator to the dew receiving tray without accumulating it, and having a shielding plate made of a heat insulating material on the side facing the refrigerant evaporator. You will get a case.

A detailed explanation will be given below with reference to the drawings.

[Specific example of conventional technology]

FIG. 1 is a cross-sectional view of an example of a conventional natural convection type closed refrigerating case shown for comparison with the present invention, in which 1 is a refrigerant evaporator, 2 is a compressor, and 6 is an inclined dew pan. , 4 is a drainage hose, 5
is a drainage tank, 6 and 7 are shelf boards, 8 is a tray, 9 is a pot filled with water, 10 is a pair of front glasses, 1
1 is a sliding door. In this case,
Since the dew pan is tilted, convection allows natural circulation as shown by the arrow. A humidifying cup 9 is placed in one corner of the bottom plate 7, but as explained earlier, it is not sufficient to increase the humidity inside the refrigerator, and the area on which the tray 8 is placed is reduced accordingly. Ta.

〔Example〕

FIG. 2 is a cross-sectional view of the configuration of an embodiment of the present invention. In FIG. 2, the same components as in FIG. 1 are given the same reference numerals.
The difference from the configuration shown in FIG. 1 is that, first, a short pipe 22 is attached to the drain port of the inclined dew pan 21, and the water collected by installing this pipe is distributed over an area of sufficient size for humidification. The water surface is formed on the surface of the water. In the figure, it occupies about 70% of the area of the dew pan. And such a dew pan 21
is placed further away from the refrigerant evaporator 1 than conventionally. Secondly, the refrigerant evaporator 1 with such widened spacing
The shielding plate 23 is provided approximately parallel to the dew pan 21 between the dew pans 21 and 21. In this case, the shielding plate 23 is made of a metal plate 24 that maintains its shape and a heat insulating material 25 attached to it, and the lower end (right side in the figure) collects dew falling from the refrigerant evaporator 1 into a lower dew receiving tray. It has a hole 26 for dropping into 21. Shielding plate 23
is cooled during the cooling operation, and if there is water accumulated on the surface, it will freeze, but it will not freeze in the short time it takes for water droplets falling from the refrigerant evaporator 1 to reach the holes 26. Because the dew pan 21 has the shielding plate 23, it is not directly cooled by the refrigerant evaporator 1, and the temperature of the opposing shielding plate 23 itself (in this case, especially the heat insulating material 25)
Since the surface temperature of the refrigerant evaporator 1 is considerably higher than the temperature of the refrigerant evaporator 1, the water received in the dew pan 21 will not freeze even if it accumulates.

In the above configuration, a circulation (to the right) of cold air occurs on the inclined shielding plate 23 due to natural convection,
Along with this, a flow of cold air (to the right) also occurs between the shielding plate 23 and the dew pan 21. This flow of cold air takes in moisture from the surface of the water in the dew pan 21 and sends it out into the refrigerator below at the right end. In this way, the humidity of the air inside the refrigerator can be increased.

FIG. 3 is a cross-sectional view of a part of the structure of another embodiment of the present invention. In this embodiment, the shielding plate 23
A fan motor 31 is provided between the dew pan and the dew pan 21, so that cool air can smoothly flow over the water in the dew pan, thereby increasing the humidification ability. Further, if there is a margin in the humidification capacity, the dew pan 21 can be moved upward by that amount. Note that the dew pan 21 and the shielding plate 23 may be horizontal.

FIG. 4 is a cross-sectional view of a part of the structure of still another embodiment of the present invention. This case is a forced circulation type closed type refrigerating case using an internal fan motor 32. The entrainment of the wind moved by the dew trap attracts wind passing between the dew pan 21 and the shielding plate 23, thereby improving the humidification ability.

[Effect of idea]

As explained above, in the present invention, between the refrigerant evaporator and the dew pan, there is a heat sink that covers the entire lower surface of the refrigerant evaporator, has a drainage means, and has a heat insulating material on the side facing the refrigerant evaporator. A closed type with a large humidifying capacity and simple structure that can prevent the water received in the dew pan from freezing by providing a radiation shielding plate without being directly cooled by a refrigerant evaporator. A refrigerated case is obtained.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of the structure of a conventional closed type refrigerating case, Fig. 2 is a cross-sectional view of the structure of one embodiment of the present invention, and Fig. 3 is a cross-sectional view of the structure of another embodiment of the present invention. Diagram showing a part of the cross section of the configuration, No. 4
The figure is a partial cross-sectional view of the configuration of still another embodiment of the present invention. Explanation of symbols: 1 is refrigerant evaporator, 2 is compressor, 3
is the dew pan, 4 is the drain hose, 5 is the drain tank, 6
7 is a shelf board, 8 is a tray, 9 is a cup filled with water, 10 is a pair of glasses, 11 is a sliding door, 21 is a dew tray, 22 is a pipe, 23 is a shielding plate, 24 is a metal plate,
25 is a heat insulating material, 26 is a hole, 31 is a fan motor,
32 represents an internal fan motor.

Claims (1)

[Scope of utility model registration request] A dew pan is provided below the refrigerant evaporator in the refrigerator, and a plate is provided in the middle that divides the air flow into upper and lower halves. In a closed-type show case that is configured to send out moisture downward into the refrigerator, the plate covers the entire lower surface of the refrigerant evaporator to block heat radiation between the refrigerant evaporator and the dew pan, and also prevents dew from dripping from the evaporator. What is claimed is: 1. A closed refrigerating case, characterized in that it has a drainage means for guiding the refrigerant to the refrigerant tray without accumulating it, and the side facing the refrigerant evaporator is a shielding plate made of a heat insulating material.