JP3071120B2 - Cooling storage - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooling storage in which a decorative plate is provided inside a storage of a transparent door provided in front of a storage room.

[0002]

2. Description of the Related Art Conventionally, in a cold storage such as a low-temperature showcase or a refrigerator, for example, Japanese Utility Model Publication No. 3-412262.
As shown in the publication (F25D17 / 08), a transparent door is provided on the front of the storage room, and a shade containing a fluorescent lamp is provided inside the transparent door behind the transparent door.

In such a low-temperature showcase, cool air does not circulate around the shade. When the fluorescent lamp is turned on, the fluorescent lamp acts as a heating element, and dew forms on the shade due to the heat of the fluorescent lamp. Although there is no fear, when the fluorescent lamp is turned off, since there is no heating element, there is a disadvantage that condensation occurs on the shade. FIG. 4 shows the structure of a conventional low-temperature showcase 100 of this type. The low-temperature showcase 100 has a main body composed of a heat-insulating box 2 that opens forward, and the heat-insulating box 2 is assembled with an outer box 3 that opens forward and is spaced apart from the outer box 3. An inner box 4 opening forward, a breaker 6 connecting the opening edges of the outer box 3 and the inner box 4, and a space surrounded by the outer box 3, the inner box 4 and the breaker 6 are filled by an in-situ foaming method. And a heat insulating material 7 made of expanded polyurethane.

A storage room 8 is formed in the inner box 4, and a front opening of the storage room 8 is opened and closed by sliding door-type transparent doors 11 fitted in the breaker 6. I have. A decoration plate 114 is provided in the upper front of the storage room 8, and a dew-proof heater 110 for preventing dew condensation is provided on the inner surface of the decoration plate 114 on the side of the transparent door 11.

[0005]

However, in the conventional low-temperature showcase 100, since there is no space for air to circulate between the transparent door 11 and the decorative plate, dew condensation occurs on the outer surface and the inner surface of the decorative plate on the transparent door 11 side. As a preventive measure, a dew-proof heater 110 is provided on the inner surface on the side of the transparent door 11 and around the electrical components, so that power consumption increases to prevent dew condensation and the structure is complicated. There is a disadvantage that it becomes.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional technical problem, and it is possible to suppress dew condensation on a dew receiving plate with a simple configuration without providing a dew-proof heater and the like, and It is another object of the present invention to provide a cooling storage that can prevent a decrease in cooling efficiency.

[0007]

According to a first aspect of the present invention, there is provided a cooling storage having a transparent door on a front surface thereof, a cooler, and a blower for circulating cool air from the cooler in an upper portion of the storage chamber. A decorative plate is provided between the transparent door and the cooler so that the cooler cannot be seen directly from the front, a suction port is formed between the decorative plate and the cooler, and the decorative plate, the transparent door and the ceiling A space for circulating air is provided between the plate and the plate.

A cooling storage according to a second aspect of the present invention is characterized in that, in addition to the first aspect, the decorative plate is formed to have an L-shaped cross section, and a plurality of holes are provided on a bottom surface to mount electrical components.

[0009]

[0010]

According to the first aspect, a suction port is formed between the decoration plate and the cooler, and the decoration plate has a space through which air circulates between the transparent door and the top plate in the refrigerator. It is possible to prevent dew condensation on the transparent door, the outer surface and the inner surface of the decorative plate due to high humidity outside air that enters along with opening and closing of the transparent door without providing a dew-proof heater or the like.

According to the second aspect of the present invention, in addition to the first aspect, by mounting the electric component on the decorative plate, that is, by providing the electric component near the cooler or the like, the wiring operation can be easily performed at low cost. At the same time, the provision of the holes for allowing cool air to pass through the bottom surface of the decorative plate makes it possible to reliably prevent dew condensation on the electrical components mounted inside.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a low-temperature showcase 1 as an embodiment of a cooling storage to which the present invention is applied, FIG. 2 is a vertical sectional side view of the upper part of the low-temperature showcase 1, and FIG. Each is shown.

The low-temperature showcase 1 has a main body composed of a heat-insulating box 2 that opens forward. The heat-insulating box 2 has an outer box 3 made of a steel plate that opens forward and a space inside the outer box 3. An inner box 4 made of a steel plate or a hard resin which is open and installed in the front, a breaker 6 made of a hard synthetic resin which connects the opening edges of the outer box 3 and the inner box 4, an outer box 3, and an inner box 4
And a heat insulating material 7 made of foamed polyurethane filled in a space surrounded by the breaker 6 by an in-situ foaming method.

A storage room 8 is formed in the inner box 4, and a front opening of the storage room 8 is closed and opened by sliding door type transparent doors 11 fitted in the breaker 6. I have. In the upper part of the storage room 8, for example, a plate fin type cooler 12 as a cooling device is provided.
Is fixed to the top wall 2A, and a steel plate or hard resin dew receiving plate 13 is similarly provided below the top wall 2A.
A fixedly provided.

A suction port 16 is formed between the front end of the dew receiving plate 13 and the top wall 2A. The cooler 12 is arranged at the rear side of the suction port 16 and the dew receiving plate 13
Extends from the lower side of the cooler 12 toward the rear while gradually lowering. A drain port (not shown) is formed at the lowest part, and the drain port 24 is connected to a drain hose (not shown) communicating outside the refrigerator.

A gap G is formed between the cooler 12 and the dew receiving plate 13, and a partition plate 31 made of a steel plate or a hard resin is provided in the gap G. The partition plate 31 has a substantially gate-shaped cross-section having an upper surface 31A, a front surface 31B, and a rear surface 31C, and engages with a projection (not shown) formed on the upper surface of the dew receiving plate 13 so that the partition plate 31 It is placed on. The upper surface 31A contacts the lower surface of the cooler 12, and the lower edges of the front surface 31B and the rear surface 31C
In contact with the upper surface 3, they close the gap G between the cooler 12 and the dew receiving plate 13. Also, the upper surface 31 of the partition plate 31
A is provided with a plurality of drain holes 32.

On the other hand, a discharge port 18 is provided in the dew receiving plate 13 located behind the partition plate 31, and a gas-permeable discharge port cover 19 is provided in the discharge port 18.
A blower 21 having a propeller fan is fixed to the dew receiving plate 13 by a mounting plate 22 corresponding to the upper side of the discharge port 18. Further, the decorative plate 14 provided between the transparent doors 11 and 11 and the cooler 12 has an L-shaped cross section, the upper end of the front surface 14A is substantially the same height as the upper surface of the cooler 12, and the bottom surface 14B Is located below the bottom surface of the cooler 12. For this reason, the decorative plate 14 is placed on the cooler 12 from the front.
It acts as a blind plate so that the user cannot see directly. Electrical components such as a thermostat 23 for controlling the temperature of the cooler 12 are placed on the bottom surface 14B inside the decorative plate 14. Further, a space 5 through which air circulates is formed between the transparent doors 11 and 11 and the inside top plate 4A, and a plurality of holes 15 are formed on the bottom surface. Are circulating, so that the transparent door 11,
Even if outside air having high temperature and humidity enters with the opening and closing of 11, the occurrence of dew condensation on the decorative plate 14 and electrical components such as the thermostat 23 placed inside can be prevented without providing a dew-proof heater or the like. Further, the decorative plate 14 has two ends at both ends via L-shaped mounting brackets 25 as shown in FIG.
It is fixed to the inner side plates 4B. With the above configuration, the wiring up to the temperature sensor 24 attached to the cooler as in the related art does not need to be wired from the electrical box in the machine room.
In addition to the fact that the length can be shortened, work such as passing through the heat insulating material is also eliminated, and wiring processing can be easily performed at low cost.

[0018]

As described in detail above, according to claim 1,
A suction port is formed between the plaque and the cooler, and the plaque provides a space for air to circulate between the transparent door and the top plate in the refrigerator. Dew condensation on the transparent door and the outer and inner surfaces of the decorative plate due to high external air can be prevented without providing a dew-proof heater or the like.

According to the second aspect, in addition to the first aspect, by mounting the electric component on the decorative plate, that is, by providing the electrical component near the cooler or the like, the wiring operation can be easily performed at low cost. At the same time, the provision of the holes for allowing cool air to pass through the bottom surface of the decorative plate makes it possible to reliably prevent dew condensation on the electrical components mounted inside.

[Brief description of the drawings]

FIG. 1 is a perspective view of a low-temperature showcase as an embodiment to which the present invention is applied.

FIG. 2 is a vertical side view of the upper part of the low-temperature showcase of FIG. 1;

FIG. 3 is a perspective view of a main part near a side plate of a decorative plate of the low-temperature showcase of FIG. 1;

FIG. 4 is a vertical side view of the upper part of a conventional low-temperature showcase.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Low-temperature showcase 2 Insulated box 8 Storage room 11 Transparent door 12 Cooler 14 Decorative plate 15 Hole 23 Thermostat

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Showa 53-55865 (JP, U) Japanese Utility Model Showa 57-58887 (JP, U) Japanese Utility Model Showa 58-103687 (JP, U) (58) Field (Int.Cl. ⁷ , DB name) F25D 17/06 F25D 29/00

Claims (2)

(57) [Claims] 1. A cooling storage having a transparent door on a front surface and a cooler and a blower for circulating cool air from the cooler in an upper part of a storage chamber, wherein a cooler is provided between the transparent door and the cooler. Decorative plate so that it cannot be seen directly from the front
When a suction port is formed between the decorative plate and the cooler,
In both cases, a space for circulating air is provided between the decorative plate and the transparent door and the top plate in the refrigerator. 2. When the decorative plate is formed in an L-shaped cross section,
Both have multiple holes on the bottom and electrical components
The cooling storage according to claim 1, wherein: