JPS62155Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a cooling structure inside a high-frequency heating device having an oven heating device.
Conventionally, when you want to quickly set the temperature inside the oven from a high temperature to a low temperature after cooking with an oven heating device, the inside of the oven was forced to cool down by operating an external switch. It is necessary to know the status, and there are many cases where the cooling is insufficient or overcooling to the set temperature, resulting in wasted energy.

Therefore, the present invention addresses these problems and aims to provide efficient cooling and temperature control inside the refrigerator.

One of the features of cooking using high-frequency heating is that only the food to be cooked is heated from within, and the inside of the refrigerator does not get very hot. On the other hand, when cooking with an oven heating device, the temperature inside the oven is raised.
The temperature inside the refrigerator becomes quite high. When cooking with this oven heating device, the heating temperature is 40°C depending on the purpose of cooking.
There are temperature settings ranging from (fermentation) to around 250℃. Therefore, when the temperature inside the refrigerator is higher than the temperature set on the temperature controller, such as when cooking at a relatively low temperature such as fermentation immediately after cooking at a high temperature setting, cooling is started and the temperature inside the refrigerator reaches the set temperature. Cooling stops when the temperature drops to a certain level.

Fig. 1 shows an embodiment using a motor for stirring hot air inside the refrigerator, and Fig. 2 shows an embodiment using a magnetron cooling fan motor.

To explain from Fig. 1, when the select switch 2 for selecting high frequency heating or oven heating is set to the high frequency heating side and the object to be heated is placed in the refrigerator and the door is closed, the door switch 3 is turned on, and when the heating time is set, the timer is attached. When the switch 4 is turned on, and then the start button 17 is pressed, the oscillation stop device/start switch 5 is turned on, voltage is applied to the transformer 6, and the magnetron 7 oscillates a high frequency.
Also, when the select switch 2, which selects high-frequency heating or oven heating, is set to the oven heating side and the heating time is set, the switch 8 attached to the timer
ON, then when you press the start button 17, the fan motor operation switch 9 operates in conjunction with it.
is OFF, switch 10 is ON, and temperature regulator 1
Start heating with 1 turned on. When cooking is finished, the fan motor operation switch 9 is turned on, the switch 10 is turned off, and the relay contact 13 is turned on.
Furthermore, when setting the temperature for the next cooking, if the temperature inside the refrigerator is higher than the set temperature, the temperature controller 1
1 is turned off, voltage is applied to the motor 15 for stirring hot air inside the refrigerator, and cooling of the interior of the refrigerator begins. When the temperature inside the refrigerator falls to the set temperature of the temperature controller 11, the temperature controller 11 is turned on and the internal hot air stirring motor 15 stops cooling.

In Fig. 2, when the select switches 22 and 36 for selecting high-frequency heating or oven heating are set to the high-frequency heating side and the object to be heated is placed in the refrigerator and the door is closed, the door switch 23 is turned on, and when the heating time is set, the timer is turned on. When the switch 24 is turned on and the start button 37 is then pressed, the oscillation stop device and start switch 25 is turned on, voltage is applied to the transformer 26, and the magnetron 27 oscillates a high frequency. A magnetron cooling fan motor 35 cools the magnetron. Next select switch 2
2 and 36 to the oven heating side and set the heating time, the switch 28 attached to the timer turns on, and then when the start button 37 is pressed, the switch 30 turns on.
The temperature controller 31 is turned on and heating starts with the temperature controller 31 turned on. When the cooking is finished, the switch 30
OFF, the fan motor operation switch 29 is turned ON. Furthermore, when setting the temperature for the next cooking, if the temperature inside the refrigerator is higher than the set temperature, the temperature controller 31 is turned OFF and voltage is applied to the magnetron cooling fan motor 35 to start cooling the inside of the refrigerator. . When the temperature inside the refrigerator falls to the set temperature of the temperature controller 31, the temperature controller 31 is turned on and the magnetron cooling fan motor 35 stops cooling.

According to the above configuration, for example, if you want to perform cooking at 80°C immediately after cooking at 250°C, the amount of residual heat at the internal temperature of 250°C will greatly affect the quality of cooking at 80°C. When cooling is required, efficient cooling can be achieved without providing an externally operated cooling fan motor switch. In other words, with the method of forced cooling using an externally operated cooling fan switch, there may be cases where the set temperature is insufficiently cooled or overcooled, but with the present invention,
Even when the inside of the refrigerator is being cooled, the temperature inside the refrigerator is determined by a temperature controller, and the inside of the refrigerator is quickly and efficiently cooled down to the set temperature.

[Brief explanation of drawings]

FIG. 1 shows an embodiment of the present invention, and FIG. 2 is a circuit diagram of an embodiment using a hot air circulation fan, and FIG. 2 is a circuit diagram of an embodiment using the same magnetron cooling fan. 2... Select switch, 3... Door switch, 7... Magnetron, 11... Temperature controller,
14, 34...Oven heating source, 15...Internal hot air stirring motor, 35...Magnetron cooling fan motor.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) Oscillation in the case of a structure that has a heat source for heating the oven in the heating chamber, and a fan motor operating switch that turns on when the heat source is stopped, or a high-frequency heating device. A fan motor operating switch that is turned ON when the refrigerator is in a stopped state, a fan motor for cooling the refrigerator, and a temperature controller that adjusts the temperature inside the refrigerator are provided. Temperature controllers are arranged in electrical series, and when the heat source is stopped or the high frequency is stopped from oscillating, that is, when the fan motor operation switch is ON, the temperature inside the refrigerator is higher than the set temperature of the temperature adjustment. A heating cooker characterized in that a fan motor for cooling the inside of the refrigerator is operated and the fan motor for cooling the inside of the refrigerator is stopped when the temperature inside the refrigerator reaches a set temperature. (2) The heating cooker according to claim 1, wherein the fan motor is a magnetron cooling fan motor or a hot air stirring motor in the refrigerator.