JP3005409B2 - Storage room - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage cabinet used for keeping cooked foods warm or reheating dishes.

[0002]

2. Description of the Related Art Conventionally, this kind of storage room has been disclosed in Japanese Utility Model Publication No.
As described in JP-A-8093 (F25D23 / 12) and the like, a heat insulating material is filled between a metal outer box and a metal inner box to form a heat insulating box, and the inner box is A heat-insulating door, which is formed by heating the heat-insulating box to a predetermined temperature, and a packing which is attached to the inner surface of the heat-insulating door and closely contacts an opening edge of the heat-insulating box. It is configured.

[0003] A humidifying device is provided in this type of storage, and the storage is maintained at a high humidity so as to prevent the food from drying.

[0004]

However, depending on the type of food (for example, tempura), excessive moisture may accelerate deterioration of food due to moisture. Therefore, in the past, primitive control such as providing an opening penetrating the inside and outside of the refrigerator and adjusting the humidity in the refrigerator by changing the size of this opening depending on the amount and type of stored food was performed. However, since the opening needs to be sized according to the stored food, it cannot be said that the dehumidifying effect suitable for the stored food can actually be adjusted.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional technical problem. Dehumidification control can be automatically performed with a simple structure, and the inside of a refrigerator is humid due to moisture coming from stored food. An object of the present invention is to provide a refrigerator that prevents the stored food from deteriorating due to moisture.

[0006]

SUMMARY OF THE INVENTION A storage room according to the present invention comprises a storage chamber heated to a predetermined temperature, an evaporating dish provided in the storage chamber, and a water supply device for supplying water to the evaporating dish. And a heating device for heating the evaporating dish, a humidity detection device for detecting the humidity in the storage room, and controlling the heat generation of the heating device based on the output of the humidity detection device to control the humidity in the storage room to a set value. The control device is configured to supply water to the evaporating dish by the water supply device until the humidity in the storage room rises abnormally until the humidity drops to a predetermined value.

[0007]

According to the storage compartment of the present invention, when the humidity in the storage room rises abnormally, water is forcibly supplied to the evaporating plate to cause dew condensation around the water supply pipe and the evaporating plate. Automatically controls the dehumidifying capacity under the optimal conditions for food regardless of the type and quantity of stored food, and prevents the inside of the refrigerator from becoming too humid due to moisture from the stored food, and stores It is possible to provide a refrigerator that does not deteriorate food due to moisture.

Further, according to the present invention, an existing evaporating dish can be used as a dehumidifying device in a warming room, so that a warming room that can automatically perform dehumidifying with a simple and inexpensive configuration can be provided.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Reference numeral 1 denotes a storage cabinet of the present invention including a heat-insulating box 2 and a heat-insulating door 20 with four glasses 3 for opening and closing the opening of the heat-insulating box 2.

As shown in FIG. 2 and FIG. 3, the warm storage 1 has a heater 5 for heating, a fan motor 6 for circulation in the refrigerator, and a fan 7 on the back side of the grill 4 in the upper part of the refrigerator as a storage room. Humidifying heater 8 as a heating device, water evaporating dish 9, evaporating dish cover 50, water supply port 51, water supply valve 52, water supply valve fitting 53, water supply pipe 54, electrical box 55, drain pipe 56, temperature A shelf 57 is provided with a sensor 57 and a humidity sensor 58, and a plurality of shelves 11 supported by shelf supports 10 are provided in the refrigerator.

The temperature in the storage 1 is controlled to be constant by controlling the power supply to the heating heater 5 by the temperature control device 12. The humidity in the refrigerator is controlled to be constant by controlling the energization of the humidifying heater 8 by the humidity control device 13. The temperature and humidity in the refrigerator are moderately controlled in order to provide the food deliciously to the customer in a warm state, and the settings are different depending on the type of food, for example, boiled food, fried food, grilled food, and the like. Specifically, for example, the boiled food has a set temperature of + 70 ° C. and a set humidity of 80.
% In a hot and humid state. In addition, fried foods such as tempura have a set temperature of + 60 ° C. and a relatively low set humidity of 6.
Stored under about 0% conditions. Reference numeral 14 denotes a power outlet.

Next, in FIG. 4, reference numeral 59 denotes an air flow duct, which is formed side by side on the side wall in the refrigerator of the heat insulating box 2. Therefore, an air flow path is formed in which the air sent by the fan 7 is diverted downward, and then the interior of the refrigerator is returned upward. Reference numeral 60 denotes a pedestal, and reference numeral 61 denotes a drain socket in the refrigerator.

FIGS. 5 and 6 show the electrical box 5 of the storage 1
5 shows a control device housed in the microcomputer 5, a one-chip general-purpose microcomputer 21, a temperature sensor 57 connected to the microcomputer 21, a humidity sensor 58 as a humidity detection device, and a microcomputer 21. The power supply valve 52, the heater 5 for heating, and the heater 8 for humidification in the refrigerator are connected via contacts 1a, 2a, 3a, respectively, while being constituted by a DC 5V power supply connected via the relays 1R, 2R, 3R. AC10
Connected to 0V AC power supply.

The relay 1R is controlled by a timer operation of the microcomputer 21, and is energized for 5 seconds every 20 minutes. When the relay 1R is excited, the contact 1a is closed, the water supply valve 52 is operated, and water is poured into the evaporating dish 9. The detection value of the temperature sensor 57 is a predetermined set temperature (for example, +60
C.) or less, the relay 2R is excited, the contact 2a is closed, and the heater 5 is energized. The heating heater 5 heats the inside of the refrigerator and raises the temperature in the refrigerator. Temperature sensor 57
When the detected value exceeds a predetermined set temperature (for example, + 63 ° C.), the relay 2R is de-energized, the contact 2a is opened, and the energization of the heating heater 5 is stopped. Thereby, the internal temperature is controlled to a predetermined temperature.

If the detected value of the humidity sensor 58 is lower than a predetermined set humidity (for example, 60%), the relay 3R is excited, the contact 3a is closed, and the heater 8 for humidifying the inside is energized. The humidification heater 8 in the refrigerator heats the water in the evaporating dish 9 to generate steam, thereby increasing the humidity in the refrigerator. When the detected value of the humidity sensor 58 exceeds a predetermined set humidity (for example, 65%), the relay 3R is de-energized, the contact 3a is opened, and the energization of the humidification heater 8 is stopped. by this,
The interior of the refrigerator is controlled at a predetermined humidity.

Here, when the humidity inside the refrigerator rises abnormally, such as when a large amount of food enters the refrigerator as shown in FIG.
%), The relay 3R is deenergized to cut off the energization of the humidifying heater 8 in the refrigerator, and at the same time, the relay 1R is energized, the contact 1a is closed, and the water supply valve 52 is operated. When the water supply valve 52 operates, the water supply pipe 5
4. Water flows through the evaporating dish 9 and the drain pipe 56, and the surroundings of the pipes 54 and 56 and the evaporating dish 9 are cooled and dew condensation occurs. As a result, the inside of the refrigerator is dehumidified. When the humidity sensor 58 falls below a predetermined humidity (for example, 65%), the relay 1R
, The contact 1a is opened, the operation of the water supply valve 52 is stopped, and the original control is returned.

The dehumidified water generated by the dehumidification is received by the evaporating dish cover 50, supplied to the evaporating dish 9, and discharged together with the overflowing water through the drain pipe 56 to the outside of the refrigerator.

As described above, water is forcibly supplied to the evaporating dish 9 by utilizing the existing humidifying function in the warming storage 1,
The dehumidification effect in the refrigerator can be automatically controlled with a simple configuration.

[0019]

As described above in detail, according to the present invention, when the humidity in the storage room rises abnormally, water is forcibly supplied to the evaporating dish to cause dew condensation around the evaporating dish and the like.
Dehumidification in the storage room can be performed. Therefore, the dehumidifying capacity is automatically controlled under the optimum conditions for the food regardless of the type and amount of the stored food, and the storage room is prevented from becoming too humid due to the moisture coming out of the stored food, and the stored food is deteriorated by the moisture. It is possible to provide a storage room that does not require any storage.

Further, according to the present invention, the humidifying function of the storage can be used as a dehumidifier, so that a storage that can automatically perform dehumidification with a simple and inexpensive configuration can be provided.

[Brief description of the drawings]

FIG. 1 is a front view of a refrigerator according to the present invention.

FIG. 2 is a vertical sectional side view of the storage cabinet of the present invention.

FIG. 3 is an enlarged vertical sectional side view of the upper part of the storage in FIG. 2;

FIG. 4 is a sectional view taken along the line PP of FIG. 2;

FIG. 5 is an electric circuit diagram of the control device for a refrigerator according to the present invention.

FIG. 6 is an electric circuit diagram of the control device for a refrigerator according to the present invention.

FIG. 7 is a diagram showing a time transition of the humidity in the refrigerator.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heat storage 2 Heat insulation box 8 Humidifier inside heater 9 Evaporation dish 20 Heat insulation door 21 Microcomputer 52 Water supply valve 54 Water supply pipe 57 Temperature sensor 58 Humidity sensor

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-27979 (JP, A) JP-A 52-86054 (JP, U) JP-A 58-194747 (JP, U) Jiko Sho 54- 4668 (JP, Y2) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47J 39/02 F25D 23/00

Claims (1)

(57) [Claims] An evaporating dish provided in the storage chamber, a water supply device for supplying water to the evaporating dish, and a heating device for heating the evaporating dish, in a storage cabinet having a storage chamber heated to a predetermined temperature. A humidity detecting device for detecting humidity in the storage room,
A control device that controls the heat generation of the heating device based on the output of the humidity detection device to control the humidity in the storage room to a set value, wherein the control device detects that the humidity in the storage room is abnormal. When the temperature rises, the evaporating dish is supplied with water by the water supply device until the temperature is reduced to a predetermined value.