JPH01179824A - Cooking device - Google Patents

Abstract

PURPOSE:To ferment and bake dough into a superior finished state by a method wherein if an elapsing time after the completion of a previous cooking operation is more than a set value when a fermentation is carried out in a microwave oven, an operating time is set in response to a detected temperature of a temperature sensor. CONSTITUTION:A temperature sensor 9 is fixed to an upper part of a side wall of a heating chamber and this temperature sensor is used for controlling a temperature within the heating chamber when an oven cooking is carried out. When a fermention is started, a control part 30 may check a counting time in a time base circuit 34 so as to compare the counting time with a predetermined set time. If the counting time is more than the set time, a cooking operation time is set in response to a detected temperature of a temperature sensor 9 and at the same time its detected temperature is revised and stored in a memory. In this case, there is a reference operating time and a correction is added to the operating time in response to the detected temperature. When the operating time elapses, a control part 30 deenergizes a relay 31. As the relay 31 is deenergized, a contact point 31a is turned OFF and a fan motor 11M and a heater 12 are operated, which means that a fermentation is completed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a cooking appliance having a cooking function using heat generated by a heater.

(Prior Art) Some cooking appliances, such as microwave ovens, are equipped with a so-called oven cooking function using heat generated by a heater.

Oven cooking includes cooking in which food is baked by maintaining a heating chamber at a high temperature of, for example, 200°C, and fermentation cooking in which bread dough is fermented by maintaining a heating chamber at a low temperature of approximately 38°C. .

That is, a temperature sensor is provided in the heating chamber, and the operation of the heater is controlled according to the temperature detected by the temperature sensor, thereby maintaining the inside of the heating chamber at a set temperature of 200° C. or 38° C.

For fermentation cooking, the optimal execution time is listed in the attached cooking book, and the user sets the time accordingly. Furthermore, some devices automatically set a pre-stored execution time when the fermentation cooking mode is set.

(Problem to be solved by the invention) However, since fermentation cooking involves low temperatures, it is easily affected by indoor temperature, and good results may not be obtained by using cookbooks or automatic fixed time settings. many.

For example, in the summer, the indoor temperature is high and the temperature of the dough is also high, which tends to cause excessive fermentation. On the other hand, in winter, the indoor temperature is low, and the temperature of the dough and dough is also low, which tends to lead to insufficient fermentation.

Therefore, when setting the time, it is necessary to make a correction that takes into account the indoor temperature, but it is difficult for a general user to make the optimal setting.

On the other hand, conventionally, an indoor temperature sensor that detects the indoor temperature is provided, and the set execution time is automatically corrected according to the temperature detected by the indoor temperature sensor.

However, in this case, there is a new problem in that the cost increases by 1 due to the provision of the indoor temperature sensor.

This invention was made in view of the above circumstances,
The purpose is to provide a cooking device that enables fermented cooking to always be well-done without being affected by changes in indoor temperature and without incurring any cost increase.

[Structure of the Invention] (Means for Solving the Problems) A temperature sensor provided in a heating chamber, a means for controlling the operation of the heater according to the temperature detected by the temperature sensor during cooking, and a means for controlling the operation of the heater according to the temperature detected by the temperature sensor during cooking; means for counting the elapsed time after completion of fermentation cooking; means for setting a cooking execution time according to the temperature detected by the temperature sensor if the count time is equal to or greater than a set value during fermentation cooking; Means is provided for setting the cooking execution time in accordance with the same detected temperature used in setting the time for the previous fermentation cooking if the count time is less than or equal to the set value.

(Function) During fermentation cooking, if the elapsed time since the last cooking was completed is less than the set value, the cooking execution time is set according to the temperature detected by the temperature sensor. However, if the elapsed time since the end of the previous cooking is less than the set value, the cooking execution time is set in accordance with the same detected temperature used in the previous fermentation cooking time setting.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a microwave oven cabinet, and a door 2 is pivotally supported on the front surface so as to be openable and closable.

A heating chamber 3 is placed in the cabinet 1 corresponding to the door 2.
is installed.

There are ventilation holes 4 and 5 on the back side of the heating chamber 3 from the top to the bottom.
．． 6 is formed.

Further, within the heating chamber 3, shelf boards 7 and 8 are provided so as to divide the interior space into three equal parts, upper and lower. These shelf boards 7 and 8 are
It is used for placing food, and can be freely taken out from the heating chamber 3 when it is not needed.

Furthermore, a temperature sensor 9 is installed on the upper side wall of the heating chamber 3 (=1
I'm being kicked. This temperature sensor 9 detects the ambient temperature in the heating chamber 3, and is used to control the temperature in the heating chamber during oven cooking.

On the other hand, a fan case 10 is provided on the back side of the heating chamber 3. In this fan case 10, a propeller fan 11 is disposed, and the propeller fan 11
A heater 12 is arranged so as to surround the. The propeller fan 11 is connected to a fan motor IIM outside the fan case 10.

Although not shown, a magnetron 22, which will be described later, is disposed near the heating chamber 3, and high-frequency radio waves emitted from the magnetron 22 are supplied to the heating chamber 3.

The control circuit is shown in FIG.

20 is a commercial AC power supply, and a relay contact 31 is connected to the power supply 20.
A fan motor IIM and heater 12 are connected via a. Further, a magnetron 22 is connected to the power source 20 via a relay contact 32a and a high voltage transformer 21.

Further, a power supply circuit 24 is connected to the power supply 20 via a step-down transformer 23, and a control unit 3 is connected to eight terminals of the power supply circuit 24.
0 is connected.

The control unit 30 is composed of a microcomputer and its peripheral circuits, and performs overall control of the microwave oven. Externally, the control unit 30 includes relays 31 and 32, a sensor circuit 33, a time base circuit 34, an operation unit 35, and a display unit 3.
6 is connected.

The sensor circuit 33 is attached to the temperature sensor 9, and converts the detected temperature into an electrical signal and outputs it. The time base circuit 34 counts the elapsed time since the end of the previous oven cooking.

Next, the operation of the above configuration will be explained with reference to FIG.

When oven cooking (including fermentation cooking) is completed, the time base circuit 34 counts the elapsed time.

Now, bread dough is placed on the shelf boards 7 and 8 of the heating chamber 3, and the door 2 is closed. Then, the fermentation cooking mode is set using the operation unit 35, and a cooking start operation is performed.

Then, the control section 30 or the relay 31 is energized.

When relay 31 is energized, contact 31a is turned on, and fan motor IIM and heater 12 operate.

In other words, the propeller fan 11 rotates and the heater 12 generates heat.

Therefore, as shown by the arrow in FIG. from there to the fan case 10.

During this fermentation cooking, the control unit 30 compares the temperature detected by the temperature sensor 9 with a predetermined set temperature (for example, 38°C), and turns on or off the energization of the relay 31 according to the comparison result. . Thereby, the atmospheric temperature of the heating chamber 3 is maintained at the optimum temperature for fermentation.

By the way, at the start of fermentation cooking, the control section 30 checks the count time t1 of the time base circuit 34, and compares the count time t1 with a predetermined set time t.

If the count time t1 is greater than or equal to the set time (1, >1
), the cooking execution time is set according to the temperature T1 detected by the temperature sensor 9, and the detected temperature T1 is updated and stored in the memory.

In this case, there is a standard execution time, and correction according to the detected temperature T1 is added to it.

In other words, after the previous oven cooking is completed, the temperature detected by the temperature sensor 9 (sensor temperature) decreases over time as shown in Figure 4, and after a sufficient period of time, it reaches almost the room temperature. By taking the indoor temperature into consideration in the time setting, the influence of the indoor temperature can be removed and the optimal execution time can be determined.

The set time t is appropriately set to about 4 hours to half a day, for example, but may be determined as appropriate depending on the capacity of the heating chamber 3, the amount of heat generated by the heater 12, and the like.

Thereafter, when the execution time has elapsed, the control section 30 de-energizes the relay 31. When relay 31 is deenergized, contact 31
a is turned off, and the fan motor 11M and heater 12 operate. In other words, fermentation cooking is completed.

It is assumed that fermentation cooking is started again t2 hours after this end.

In this case, if the count time t2 is less than or equal to the set time (t2 x t), the detected temperature T2 of the temperature sensor 9 at that time
Instead, the cooking execution time is set based on the contents of the memory, that is, the same detected temperature T1 used in setting the time for the previous fermentation cooking.

That is, if sufficient time has not passed since the end of the previous oven cooking, it is determined that the detected temperature T2 of the temperature sensor 9 is outside the room temperature, and the detected temperature T1 used in the previous fermentation cooking time setting is determined. will be used.

In this way, the fermentation cooking execution time is automatically set after taking into account the room temperature, so anyone can enjoy fermentation that is well-done without over-fermenting or under-fermenting, regardless of changes in the room temperature. Can cook.

In particular, since the indoor temperature is determined using the temperature sensor 9 for temperature control, there is no need to provide a new indoor temperature sensor, and an increase in cost can be avoided.

Moreover, when the temperature sensor 9 is also used, sufficient consideration is given to the time elapsed since the previous oven cooking, so that an appropriate time can be set without being affected by residual heat.

In the above embodiment, the predetermined reference execution time is corrected according to the detected temperature, but the execution time arbitrarily set by the user may be corrected according to the detected temperature.

Furthermore, although a hot air circulation type microwave oven with a heater outside the heating chamber has been described, the present invention can be implemented in a similar manner to a type of microwave oven with a heater inside the heating chamber.

Furthermore, the present invention is not limited to microwave ovens, but can be applied to automatic bread baking molds exclusively used for making bread.

In addition, the present invention is not limited to the second embodiment, and can be modified in various ways without changing the gist.

[Effects of the Invention] As described above, according to the present invention, a temperature sensor provided in a heating chamber, a means for controlling the operation of the heater according to the temperature detected by the temperature sensor during cooking, and means for counting the elapsed time after the completion of cooking; means for setting the cooking execution time according to the temperature detected by the temperature sensor if the count time is equal to or greater than a set value during fermentation cooking; During cooking, if the count time is less than the set value, the cooking execution time is set according to the same detected temperature that was used to set the time for the previous fermented cooking. To provide a cooking device that enables fermented cooking to always be of good quality without being affected by the effects and without causing an increase in cost.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing the configuration of a heating chamber and its surrounding area in one embodiment of the present invention, FIG. 2 is a diagram showing the configuration of a control circuit in the same embodiment, and FIGS. 3 and 4 are diagrams showing the same embodiment. FIG. 3 is a diagram for explaining the operation of an example. 3...Heating chamber, 9...Temperature sensor, 12...Heater, 30...Control unit, 34...Time base circuit. Applicant's agent Patent attorney Takehiko Suzue 91 Tojinza Figure 1

Claims (1)

[Claims] In a cooker equipped with a cooking function using heat generated by a heater,
a temperature sensor provided in a heating chamber; a means for controlling the operation of the heater according to the temperature detected by the temperature sensor during cooking; a means for counting elapsed time since the end of the previous cooking; and a fermentation cooking method. and means for setting a cooking execution time according to the temperature detected by the temperature sensor if the count time is equal to or greater than a set value; A cooking appliance characterized by comprising means for setting a cooking execution time according to the same detected temperature used for time setting.