JP2001203073A - High frequency heating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a high frequency heating device in which the changes of high frequency output due to initial temperature in the heating chamber and the temperature characteristics of the high frequency generating means can be corrected, and uniform cooking performance is obtained. SOLUTION: In this device, the amount of heat applied naturally to an object 3 by the temperature of a heating chamber 4 which is calculated by the use time and stop time of the magnetron (high frequency generating means) 2 and the amount of changes in the high frequency output due to correlation characteristics of the use time of the magnetron (high frequency generating means) 2 and the change of the high frequency output, are obtained and the correction of the high frequency output and the change of cooking time are made, and the magnetron (high frequency generating means) 2 is controlled. Accordingly uniform cooking is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-frequency heating device, and more particularly to a method for correcting a high-frequency output value supplied from a high-frequency generator.

[0002]

2. Description of the Related Art As shown in FIG. 6, a conventional high-frequency heating apparatus 1 includes a magnetron 2 serving as a high-frequency generating means for generating microwaves, an AC control device for supplying power to the magnetron 2, and a food or the like. Heating chamber 4 containing heated object 3
Operating means 5 for selecting a cooking time or the like on the front of the main body;
The display unit 6 is configured to display setting contents such as cooking time.

The high-frequency heating apparatus 1 selects a cooking method of a heating apparatus for actually heating and keeping the object 3 to be heated in a heating chamber 4 such as a high-frequency generator or a heating apparatus at the time of cooking setting. By controlling a generator, a heat generator, and the like, it becomes possible to heat and keep the object 3 to be heated in the heating chamber 4.

[0004]

However, in the conventional high-frequency heating apparatus 1, there are variations due to the temperature characteristics of the components constituting the magnetron 2, and the heat efficiency may decrease with heat generation. Because it can be quite different, it affects the workmanship.
Even if the same cooking method is set and the same amount of heat is applied from the magnetron 2, the heating target 3 in the heating chamber 4 may be changed depending on the season, the temperature of the place where the high-frequency heating device 1 is used, the temperature of the heating chamber 4, and the like. Since the amount of heat received is different, there is a problem that the quality of cooking may be different.

[0005]

A high-frequency heating apparatus according to the present invention includes a heating chamber for storing an object to be heated such as food, and high-frequency generating means for supplying a high-frequency output to the heating chamber. The high-frequency output value is corrected based on the correlation between the use time of each high-frequency output of the means and the change in the high-frequency output value and the temperature of the heating chamber calculated based on the use time of the high-frequency generation means, and the high-frequency generation means is controlled. is there.

Thus, the change of the high-frequency output value with the use time of each high-frequency output of the high-frequency generation means can be recognized, the high-frequency output value can be corrected, and a constant cooking performance can be provided. Further, the current temperature state of the heating chamber can be calculated from the use time and the pause time at each high-frequency output of the high-frequency generation means. In order to control the high-frequency generator so that the appropriate amount of heat excluding the amount of heat naturally applied to the object to be heated due to the temperature is supplied from the high-frequency generator,
Constant cooking performance can be provided.

[0007]

DETAILED DESCRIPTION OF THE INVENTION The invention according to claim 1 has a heating chamber for storing an object to be heated such as food, and high frequency generating means for supplying a high frequency output to the heating chamber. The high-frequency output value is corrected based on the correlation between the use time of each output and the change of the high-frequency output value and the temperature of the heating chamber calculated based on the use time of the high-frequency generation means, and the high-frequency generation means is controlled.

Thus, the change of the high-frequency output value with the use time of each high-frequency output of the high-frequency generation means can be recognized, the high-frequency output value can be corrected, and uniform cooking performance can be provided. In addition, the current temperature state of the heating chamber can be calculated based on the usage time and the idle time at each high-frequency output of the high-frequency generation means. In order to control the high frequency generating means to supply the appropriate amount of heat excluding the amount of heat naturally applied to the object to be heated by the temperature of the high frequency generating means,
Further, uniform cooking performance can be provided.

According to a second aspect of the present invention, there is provided a heating chamber for storing an object to be heated such as food, a high frequency generating means for supplying a high frequency output to the heating chamber, and a first temperature monitoring means for monitoring the temperature of the high frequency generating means. A high-frequency output value based on a correlation characteristic between a change in the high-frequency output value and a temperature based on the first monitoring means of the high-frequency generation means, and a temperature of the heating chamber calculated based on a use time of the high-frequency generation means. And controls the high frequency generation means.

By providing the first monitoring means, the temperature of the high-frequency generating means can be accurately known, and the change in the high-frequency output value can be determined from the correlation characteristic between the temperature and the change in the high-frequency output value. The output value can be corrected, and constant cooking performance can be provided. In addition, it is possible to suppress variations due to temperature characteristics, and it is possible to provide more stable cooking performance. In addition, the current temperature state of the heating chamber can be calculated based on the usage time and the idle time at each high-frequency output of the high-frequency generation means. Since the high-frequency generator is controlled to supply an appropriate amount of heat excluding the amount of heat naturally applied to the object to be heated according to the temperature of the high-frequency generator, more uniform cooking performance can be provided.

According to a third aspect of the present invention, there is provided a heating chamber for storing an object to be heated such as food, a high-frequency generating means for supplying a high-frequency output to the heating chamber, and a second monitoring means for monitoring the temperature of the heating chamber. And correcting the high-frequency output value from the correlation between the use time of each high-frequency output of the high-frequency generation means and the change in the high-frequency output value and the temperature of the heating chamber measured by the second monitoring means. It controls the generating means.

The change in the high-frequency output value with the use time of each high-frequency output of the high-frequency generation means can be understood, and the high-frequency output value can be corrected, and uniform cooking performance can be provided. In addition, by providing the second monitoring means, the temperature of the heating chamber can be known, so that the amount of heat absorbed by the object to be heated from the heating chamber during natural standing can be accurately read. Not only can correct the high-frequency output value, but also can control the high-frequency generation means so as to always supply the optimum high-frequency output value even during heating, thereby ensuring uniform cooking performance and improving cooking performance. I can do it.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) FIG. 1 is a block diagram showing a configuration of a high-frequency heating apparatus according to a first embodiment of the present invention.
The components having the same reference numerals as those of the conventional example have the same structure, and the detailed description is omitted.

In FIG. 1, a magnetron (high-frequency generating means) 2 for supplying a high-frequency output to a heating chamber 4 and a control means 7
And the microcomputer 8 controls the control means 7
To make the high frequency output variable.

Next, the operation and operation will be described. The operating time of each high-frequency output supplied from the magnetron 2 to the heating chamber 4 and the idle time of the magnetron 2 are stored by the microcomputer 8 or other storage means 9.
The microcomputer 8 performs calculations based on the correlation characteristics between the stored time information and the change in the high-frequency output value of the magnetron 2 and the temperature in the heating chamber 4 estimated from the use time of the magnetron 2. The high-frequency output value is corrected, the information of the corrected high-frequency output value is given to the control means 7, and the magnetron 2 is controlled. Thereby, a constant (uniform) cooking performance can be provided.

FIG. 2 is a block diagram showing the configuration of a high-frequency heating apparatus provided with first monitoring means 10 including a sensing element for monitoring the temperature of the components constituting the magnetron 2.

Next, the operation and the operation will be described. Instead of the above-mentioned correlation characteristics, the temperature information obtained by the first monitoring means 10 comprising a sensing element for monitoring the temperature of the magnetron 2 and the high frequency of the magnetron 2 are obtained. The microcomputer 8 performs calculations on the basis of the correlation characteristics with the change of the output value and the temperature in the heating chamber 4 estimated from the use time of the magnetron 2 to correct the basic high-frequency output value. 7 to give corrected high frequency output value information,
The magnetron 2 is controlled. By providing the monitoring means 10, the temperature of the magnetron 2 can always be known, and the high-frequency output can be controlled in consideration of the variation due to the temperature characteristics, so that more stable cooking performance can be secured and provided. It becomes possible.

FIG. 3 is a block diagram showing the configuration of a high-frequency heating apparatus provided with a second monitoring means 11 comprising a sensing element for monitoring the temperature of the heating chamber 4 and the temperature of the object 3 to be heated. is there.

Next, the operation and operation will be described. The operating time of each high-frequency output supplied from the magnetron 2 to the heating chamber 4 and the idle time of the magnetron 2 are stored by the microcomputer 8 or other storage means 9.
The correlation characteristic between the stored time information and the change in the high-frequency output value of the magnetron 2 and the temperature of the heating chamber 4 and the temperature of the object to be heated 3 are obtained from the second monitoring means 11 composed of a sensing element or the like. The microcomputer 8 performs calculation based on the obtained temperature information, corrects the basic high-frequency output value, gives the corrected high-frequency output value information to the control means 7, and controls the magnetron 2.

The provision of the second monitoring means 11 makes it possible to know the amount of heat at the present time based on the temperature of the heating chamber 4 and the temperature of the object 3 to be heated. The amount of heat to be supplied can be calculated by the microcomputer 8.
The supplied high frequency output can be made variable.

That is, not only can the high-frequency output be corrected at the start of heating, but also the optimum high-frequency output can always be obtained even during heating, and uniform cooking performance and significant improvement in cooking performance can be achieved. Can be done.

By using the above three means, regardless of the external characteristics such as the temperature characteristics of the individual parts and the temperature variation of the heating chamber 4, the apparatus can be used in any situation.
It is easy to always ensure a constant cooking performance.

(Embodiment 2) FIGS. 4 and 5 are flow charts of a second embodiment of the present invention.

In FIG. 4, the microcomputer 8 comprises:
In step S1, it is determined whether or not a high-frequency output is being supplied from the magnetron 2 into the heating chamber 4. If it is determined that the high-frequency output is being supplied, the process proceeds to step S2, and the high-frequency output value currently being supplied into the heating chamber 4 and the weighting set for each unit time are used as the elapsed use time in step S2. I will add it. If it is determined in step S1 that the high-frequency output is not supplied to the inside of the heating chamber 4, the process proceeds to step S3, and the weight set for each unit time is taken into consideration as the pause elapsed time as in step S2. I will do it.

The current total elapsed time is calculated from the use elapsed time calculated in step S2 and the pause elapsed time calculated in step S3, and the temperature in the heating chamber is calculated from the elapsed time. This is step S4.

Based on the calculated temperature inside the heating chamber 4, FIG.
In step S1A, the microcomputer 8 waits for an input signal for starting cooking and heating from the operating means 5 and determines that cooking and heating have been started. In step S2A,
Based on the calculated temperature in the heating chamber 4, the amount of heat supplied to the object to be heated 3 is calculated. In step S3A, the temperature characteristic information of the magnetron 2 at the elapsed time in consideration of both the suspension of use is read. Then, a correction calculation of a change in the high-frequency output value with the use time for each high-frequency output with respect to the high-frequency output value set at the time of setting the cooking heating method is performed, and the amount of heat added by the magnetron 2 is calculated, and step S
In 4A, the calorie calculated in step S2A is subtracted from the calorie calculated in step S3A, and the cooking time is shortened by the calorific value difference.

The corrected high-frequency output value and the heating time are transmitted to the control means 7 to control the magnetron 2.

A first monitoring means 10 comprising a sensing element for monitoring the temperature of the magnetron 2 in FIG.
In the case of the high-frequency heating device provided with the above, the location where the difference due to the temperature characteristic is derived from the elapsed time in consideration of both the suspension of use in step S3A can be directly derived from the temperature of the magnetron 2, and the accuracy can be increased.

In the case of the high-frequency heating apparatus provided with the second monitoring means 11 composed of a sensing element for monitoring the temperature of the heating chamber 4 and the temperature of the article 3 to be heated in FIG. 3, the step S2A is used. It is possible to directly know the temperature of the heating chamber 4 and the temperature of the object 3 to be heated, which are obtained from the elapsed time in consideration of both the unused state, and the cooking performance is improved.

A first monitoring means 10 comprising a sensing element for monitoring the temperature of the above-mentioned parts in FIG. 2 and a sensing element for monitoring the temperature of the heating chamber 4 and the temperature of the object 3 in FIG. By providing the second monitoring means 11 configured, good cooking performance can be obtained without calculating the elapsed time, and the processing described in the flowchart of FIG. 4 becomes unnecessary.

Note that this step is just an example, and the program can be simplified in actuality. In some cases, unnecessary portions may occur.

[0033]

As described above, according to the present invention, the following effects can be obtained.

The use time and the pause time of the high-frequency generating means at each high-frequency output value are recorded, and the current temperature condition of the high-frequency generating means is calculated using each time. The amount of heat applied to the object to be heated, excluding the amount of heat naturally applied by the temperature in the heating chamber, can be supplied from the high-frequency generating means with high-frequency output, and the advantageous effect that a constant cooking performance can be provided. Have.

Further, the change of the high-frequency output value with the use time of each high-frequency output of the high-frequency generation means can be understood, the high-frequency output value can be corrected, and more uniform cooking performance can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram illustrating a configuration of a high-frequency heating device according to a first embodiment of the present invention.

FIG. 2 is a block diagram illustrating a configuration in which a first monitoring unit is provided in the high-frequency heating device.

FIG. 3 is a block diagram illustrating a configuration in which a second monitoring unit is provided in the high-frequency heating device.

FIG. 4 is a flowchart of a high-frequency heating device according to a second embodiment of the present invention.

FIG. 5 is another flowchart of the high-frequency heating device.

FIG. 6 is an external view of a conventional high-frequency heating device.

[Explanation of symbols]

 2 magnetron (high frequency generating means) 3 object to be heated 4 heating chamber 10 first monitoring means 11 second monitoring means

Claims (3)

[Claims] 1. A heating chamber for storing an object to be heated such as food, and high-frequency generating means for supplying a high-frequency output to the heating chamber, wherein a usage time and a high-frequency output value of each high-frequency output of the high-frequency generating means are provided. A high-frequency heating device that corrects a high-frequency output value and controls the high-frequency generation means based on the correlation characteristic of the change in the high-frequency generation means and the temperature of the heating chamber calculated by the use time of the high-frequency generation means. 2. A heating chamber for storing an object to be heated such as food, a high-frequency generator for supplying a high-frequency output to the heating chamber, and a first monitor for monitoring the temperature of the high-frequency generator. Correcting the high-frequency output value from the correlation characteristic of the change in the high-frequency output value with the temperature based on the first monitoring means of the high-frequency generation means and the temperature of the heating chamber calculated based on the usage time of the high-frequency generation means; High frequency heating device that controls the means. 3. A heating chamber for storing an object to be heated such as food, a high-frequency generating means for supplying a high-frequency output to the heating chamber, and a second monitoring means for monitoring a temperature of the heating chamber. A high-frequency wave for correcting the high-frequency output value and controlling the high-frequency generation means from the correlation characteristic between the use time of each high-frequency output means and the change in the high-frequency output value and the temperature of the heating chamber measured by the second monitoring means. Heating equipment.