JPH0795929A - Hot keeping apparatus - Google Patents

Abstract

PURPOSE:To provide a hot keeping apparatus in which a dehumidification can be automatically controlled by a simple constitution, the inside of the apparatus can be prevented from being humidified too much because of water from a stored food, and the stored food is not deteriorated owing to the moisture. CONSTITUTION:A hot keeping apparatus is provided with an evaporating dish 9 provided therein, a water supply valve 52 for supplying water to the evaporating dish 9, a water supply pipe 54, an inside humidifying heater 8 for heating the evaporating dish, a humidity sensor 58 for detecting the humidity of the inside and a microcomputer for controlling the humidity of the inside to a set value by controlling the heat of the inside humidifying heater 8 based on the output of the humidity sensor 58. The microcomputer feeds water to the evaporating dish 9 by the water supply valve until the inside humidity is lowered to a prescribed value when it abnormally rises.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a warm storage used for keeping heat of cooked food, reheating food, and the like.

[0002]

2. Description of the Related Art Heretofore, this type of hot storage has been used as a kaikai 56-5.
As described in Japanese Patent No. 8093 (F25D23 / 12) and the like, a heat insulating material is filled between an outer metallic box and an inner metallic box to form a heat insulating box body, and the inside of the inner box is formed. A heat-insulating door that opens and closes the opening of the heat-insulating box body, and a packing that is attached to the inner surface of the heat-insulating door and is in close contact with the opening edge of the heat-insulating box body. It is configured.

A humidifying device is provided in this type of refrigerator to keep the inside of the refrigerator at a high humidity and prevent food from drying.

[0004]

However, depending on the type of food (for example, tempura, etc.), excessive moisture is rather promoted by moisture to deteriorate the food. Therefore, conventionally, a 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 the opening according to the amount and type of stored food has been performed. Since the opening needs to be sized according to the stored food, it cannot be said at all that the dehumidifying effect suitable for the stored food can be adjusted.

The present invention has been made in order to solve the above-mentioned conventional technical problems, and it is possible to automatically perform dehumidification control with a simple structure, and the inside of the container is highly humid due to the water content of the stored food. It is an object of the present invention to provide a hot storage that prevents the stored food from being deteriorated by moisture by preventing it from becoming too much.

[0006]

The warm storage of the present invention comprises a storage chamber heated to a predetermined temperature, and an evaporation tray provided in the storage chamber and a water supply device for supplying water to the evaporation tray. , A heating device that heats the evaporation tray, a humidity detecting device that detects the humidity inside the storage chamber, and the humidity inside the storage chamber to a set value by controlling the heat generation of the heating device based on the output of this humidity detecting device. When the humidity in the storage chamber rises abnormally, the control unit controls the water supply device to supply water to the evaporation tray until the humidity decreases to a predetermined value.

[0007]

According to the warm storage of the present invention, when the humidity in the storage chamber rises abnormally, water is forcibly supplied to the evaporation tray to cause dew condensation around the water supply pipe and the evaporation tray, and Dehumidification can be performed, and the dehumidification capacity is automatically controlled under optimal conditions for food regardless of the type and amount of stored food to prevent the inside of the refrigerator from becoming too humid due to the moisture from the stored food. It is possible to provide a hot storage in which food does not deteriorate due to moisture.

Further, according to the present invention, since the existing evaporation dish can be used as a dehumidifying device in the warm storage, it is possible to provide a warm storage capable of automatically performing dehumidification with a simple and inexpensive structure.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. Reference numeral 1 is a storage cabinet of the present invention provided with a heat insulating box 2 and a heat insulating door 20 with four glass 3 for opening and closing the opening of the heat insulating box 2.

As shown in FIGS. 2 and 3, the heating cabinet 1 has a heating heater 5, an internal circulation fan motor 6 and a fan 7 on the rear side of the grill 4 in the upper portion of the cabinet as a storage room. A heater 8 for humidifying the inside of the chamber as a heating device, a water evaporation tray 9, an evaporation tray cover 50, a water supply port 51, a water supply valve 52, a water supply valve fitting 53, a water supply pipe 54, an electrical equipment box 55, a drainage pipe 56, a temperature A sensor 57 and a humidity sensor 58 are provided, and a plurality of shelves 11 supported by the shelves 10 are provided in the refrigerator.

The temperature inside the warm storage 1 is controlled to be constant by controlling the energization of the heating heater 5 by the temperature controller 12. The internal humidity is controlled to be constant by controlling the energization of the humidifying heater 8 by the humidity controller 13. The inside temperature and the inside humidity are moderately controlled so that the food can be deliciously provided to the customer in a warm state, and the setting varies depending on the type of food, for example, simmered food, fried food, baked food, or the like. Specifically, for example, boiled foods have a set temperature of + 70 ° C. and a set humidity of 80.
It is stored in a hot and humid state of about%. Also, fried foods such as tempura, set temperature +60 ℃, relatively low set humidity 6
It is stored under the condition of 0%. Incidentally, 14 is a power outlet.

Next, in FIG. 4, reference numeral 59 is an air flow duct, which is formed in parallel with the side wall of the heat insulating box 2 inside the storage. Therefore, after the air sent by the fan 7 is branched downward, an air flow path that returns the inside of the storage chamber upward is formed. Further, 60 is a base leg, and 61 is an internal drain socket.

FIG. 5 and FIG. 6 show the electrical equipment box 5 of the storage cabinet 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 detecting device, and the microcomputer 21. It is composed of a power source of DC5V connected via a relay 1R, a relay 2R, and a relay 3R, and the water supply valve 52, the heater 5 for heating, and the heater 8 for humidifying in the refrigerator are respectively connected via contacts 1a, 2a, 3a. AC10
It is connected to an AC power source of 0V.

The relay 1R is controlled by the timer operation of the microcomputer 21 and is excited every 20 minutes for 5 seconds. When the relay 1R is excited, the contact 1a is closed and the water supply valve 52 is operated to fill the evaporation tray 9 with water. The detected value of the temperature sensor 57 is a predetermined set temperature (for example, +60
If the temperature is below (° C), the relay 2R is excited, the contact 2a is closed, and the heating heater 5 is energized. The heater 5 for heating heats the inside of the refrigerator to raise the temperature inside the refrigerator. Temperature sensor 57
When the detected value exceeds the predetermined set temperature (for example, + 63 ° C.), the relay 2R is deenergized, the contact 2a is opened, and the heating heater 5 is deenergized. As a result, the inside temperature is controlled to a predetermined temperature.

If the detected value of the humidity sensor 58 is below a predetermined set humidity (for example, 60%), the relay 3R is excited, the contact 3a is closed, and the interior humidifying heater 8 is energized. The in-compartment humidifying heater 8 heats the water in the evaporating dish 9 to generate water vapor and raise the in-compartment humidity. When the detection 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 interior humidification heater 8 is stopped. by this,
The inside of the refrigerator is controlled to a predetermined humidity.

Here, when the inside humidity is abnormally increased, such as when a large amount of food enters the inside as shown in FIG. 7, for example, the inside humidity is set to a predetermined set humidity (for example, 70).
%), The relay 3R is de-excited to cut off the energization of the internal humidifying heater 8 and the relay 1R is excited to close the contact 1a to operate the water supply valve 52. When the water supply valve 52 operates, the water supply pipe 5
4, the water flows through the evaporation tray 9 and the drainage pipe 56, and the pipes 54, 56 and the periphery of the evaporation tray 9 are cooled and condensed, and as a result, the inside of the refrigerator is dehumidified. When the humidity sensor 58 falls below a predetermined set humidity (for example, 65%), the relay 1R
Is de-excited, the contact 1a is opened, the operation of the water supply valve 52 is stopped, and the original control is restored.

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

As described above, by using the existing humidifying function of the warm storage 1 to forcibly supply water to the evaporation dish 9,
The dehumidifying effect in the refrigerator can be automatically controlled with a simple configuration.

[0019]

As described in detail above, according to the present invention, when the humidity in the storage chamber rises abnormally, the evaporation tray is forcibly supplied with water to cause dew condensation around the evaporation tray and the like.
It is possible to dehumidify the storage chamber. Therefore, regardless of the type and amount of stored food, the dehumidifying capacity is automatically controlled under the optimum condition for the food, the storage chamber 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 warm storage without a problem.

Moreover, according to the present invention, since the humidifying function of the warm storage can be used as a dehumidifying device, it is possible to provide a warm storage capable of automatically performing dehumidification with a simple and inexpensive structure.

[Brief description of drawings]

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

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

FIG. 3 is an enlarged vertical side view of the upper part of the warm storage in FIG.

FIG. 4 is a sectional view taken along line P-P of FIG.

FIG. 5 is an electric circuit diagram of the control device for the heating cabinet of the present invention.

FIG. 6 is an electric circuit diagram of the control device for the heating cabinet of the present invention.

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

[Explanation of symbols]

 1 Heat Storage 2 Insulation Box Body 8 Humidification Heater 9 Evaporation Dish 20 Insulation Door 21 Microcomputer 52 Water Supply Valve 54 Water Supply Pipe 57 Temperature Sensor 58 Humidity Sensor

Claims (1)

[Claims] 1. An evaporating dish provided in the evacuation chamber, a water supply device for supplying water to the evaporating dish, and a heating device for heating the evaporating dish in a warming cabinet formed by heating the evacuation chamber to a predetermined temperature. A humidity detecting device for detecting the humidity in the storage chamber,
And a controller that controls the humidity in the storage chamber to a set value by controlling the heat generation of the heating device based on the output of the humidity detection device, and the controller controls the humidity in the storage chamber to be abnormal. When the temperature rises, the water is supplied to the evaporation tray by the water supply device until it decreases to a predetermined value.