JP2962206B2 - High frequency heating equipment - Google Patents

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 for heating food.

[0002]

2. Description of the Related Art A conventional high-frequency heating apparatus heats a food 4 from a high-frequency oscillation source 2 via a waveguide 3 in a closed space in which the entire heating chamber 1 is surrounded by metal as shown in FIG. doing. Therefore, the food 4 is heated in the heating chamber 1 in the mode 5 which is caused by the size of the heating chamber. The food 4 on the turntable 6 moves the drive mechanism 7 of the heating chamber 1 to change the wall of the heating chamber, thereby changing the position of the mountain in mode 5 or setting another mode.
The structure is such that uneven heating does not occur.

[0003] A signal from a sensor 8 for detecting a change in an electric field in the heating chamber 1 and a weight sensor (not shown) provided immediately below a motor 9 provided on the turntable 6 are attached to a stepping motor 10. There is also a method of controlling the food 4 to maximize the high frequency power of the oscillation source 2 by driving the metal reflector 11.

[0004] For example, there are JP-A-5-13162 and JP-A-6-111932.

[0005]

However, in the conventional structure shown in FIG.
A metal reflector 7 is provided in the waveguide 3 as in Japanese Patent Application Laid-Open Publication No. H11-15095 to match the load of high-frequency power. In this case, however, there is a first problem described below.

That is, the metal reflector 1 in the waveguide 3
1, a stub is set up and rotated in the shape of a metal disk to match the load, but the maximum angle power can be controlled by the rotation angle of the stepping motor, the weight of food, and the signal from the electric field sensor. The range was limited. It can be inferred from the matching movement on the Smith chart. Generally, the rotation direction on the Smith chart is a positional relationship of the stub from the antenna of the oscillation source 2, and the radial direction of the Smith chart can be matched by changing the height of the stub. However, in the method disclosed in Japanese Patent Application Laid-Open No. 6-111932, since the height direction of the stub is invariable, matching can be performed for a limited food product, but matching for all food products cannot be performed. Impossible.

[0007] Further, in the configuration for driving the wall of the heating chamber 1 as disclosed in Japanese Patent Application Laid-Open No. Hei 5-13162, the second problem that the configuration becomes complicated, and that it is difficult to obtain long-term reliability due to deformation of the heating chamber. There was a third problem.

In addition, as disclosed in JP-A-5-13162 and JP-A-6-111932, it is not possible to automatically match or change the distribution of all food 4 information. However, there is a fourth problem that electric power is wasted after all, and a fifth problem that unsatisfactory heating unevenness remains.

Further, there is a sixth problem that it is not possible to satisfy both the inventions of JP-A-5-13162 and JP-A-6-111932 at the same time. That is, if the heating efficiency of the food is increased, uneven heating is a problem, and if the uneven heating is satisfied, the heating efficiency is sacrificed.

[0010]

According to the present invention, there is provided an oscillation source for oscillating a high frequency, a heating chamber for heating a food, and a waveguide for guiding the high frequency to the heating chamber.
It comprises adjusting means made of a functionally graded material in the waveguide to adjust the power entering the food, driving means for driving the adjusting means, and control means for controlling the oscillation source and the driving means. The configuration was adopted. With this configuration,
Since the power entering the food in the heating chamber can be adjusted, and particularly the maximum power can be entered, the heating efficiency can be improved.

As described above, the feature of the present invention resides in that the electric power entering the food can be adjusted by the adjusting means made of the functionally gradient material. In order to improve the heating efficiency, the more electric power that enters the food, the better. Naturally, the efficiency is highest when the maximum electric power enters the food. Therefore, in the embodiment described below, a case will be described in which adjustment is performed so that the maximum electric power enters the food.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to solve the first problem, the present invention provides an oscillation source for oscillating high frequency, a heating chamber for heating food, a waveguide for guiding high frequency to the heating chamber, and a waveguide. There is provided an adjusting means formed of a functionally graded material in the pipe for adjusting the power entering the food, a driving means for driving the adjusting means, and a control means for controlling the oscillation source and the driving means.

In order to solve the second problem, the present invention provides an oscillation source for oscillating high frequency, a heating chamber for heating food, a waveguide for guiding high frequency to the heating chamber, and A configuration is provided in which a changing unit made of a functionally graded material for changing a heating distribution of food, a driving unit for driving the changing unit, and a control unit for controlling the oscillation source and the driving unit are provided.

In order to solve the third problem, the present invention provides an oscillating source for oscillating high frequency, a heating chamber for heating the food, a waveguide for guiding the high frequency to the heating chamber, and a food in the heating chamber. And a driving unit for driving the changing unit, and a control unit for controlling the oscillation source and the driving unit.

In order to solve the fourth problem, the present invention provides an oscillation source for oscillating high frequency, a heating chamber for heating food, a waveguide for guiding high frequency to the heating chamber, and Adjusting means made of a functionally graded material for adjusting the power entering the food; driving means for driving the adjusting means; detecting means for detecting the inside of the heating chamber; and control for controlling the oscillation source and the driving means based on the information of the detecting means. Means are provided.

In order to solve the fifth problem, the present invention changes an oscillation source for oscillating high frequency, a heating chamber for heating food, a waveguide for guiding high frequency to the heating chamber, and a heating distribution of food. Changing means formed of a functionally graded material to be changed, driving means for driving the changing means, detecting means for detecting a physical quantity of food in the heating chamber, and control means for controlling an oscillation source and a driving means based on information of the detecting means. It is configured to be provided.

In order to solve the sixth problem, the present invention provides an oscillation source for oscillating high frequency, a heating chamber for heating food, a waveguide for guiding high frequency to the heating chamber, and Adjusting means composed of a functionally graded material that adjusts the food so that the maximum electric power enters, adjustment driving means for driving the adjusting means, changing means composed of a functionally graded material that changes the heating distribution of the food, and changing means. The apparatus is provided with a change driving means for driving, a detecting means for detecting a physical quantity of at least one food in the heating chamber, and a control means for controlling the oscillation source and the driving means based on the information of the detecting means.

The operation will be described below. According to the first aspect of the present invention, the high frequency power radiated from the oscillation source causes the control means to deform the adjusting means made of the functionally graded material by the driving means, so that the maximum power enters the food in the heating chamber. You can do so.

Further, the present invention provides the above-mentioned second structure,
Since the control means deforms the changing means made of the functionally gradient material by the driving means, the heating pattern of the food in the heating chamber can be easily changed.

According to the third aspect of the present invention,
Since the control means deforms the changing means made of the functionally graded material in the heating chamber by the driving means, the heating pattern of the food in the heating chamber can be easily changed.

Further, the present invention provides the above-described fourth configuration,
The control means deforms the adjusting means made of the functionally graded material in the waveguide by the driving means based on the information and the change of the physical quantity of the food, so that the maximum power of the high-frequency power automatically enters the food in the heating chamber. That is what you can do.

Also, the present invention provides the above-mentioned fifth configuration,
Since the control means deforms the changing means made of the functionally graded material by the driving means based on the information and change of the physical quantity of the food, the heating pattern of the food in the heating chamber can be easily changed automatically.

Further, the present invention provides the above-described sixth configuration,
Since the control means deforms the changing means constituted of the functionally graded material by the change driving means based on the information and change of the physical quantity of the food, the heating pattern of the food in the heating chamber is automatically changed easily, and Since the adjusting means made of the functionally graded material in the waveguide is deformed by the adjusting drive means based on the information and the change of the physical quantity, the electric power entering the food in the heating chamber can be automatically adjusted. .

Further, by adjusting the functionally graded material, the power entering the food can be maximized.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is an overall configuration diagram of a high-frequency heating device according to a first embodiment of the present invention. 1 is a heating chamber, 2 is a magnetron as an oscillation source, 3 is a waveguide, 4 is food, 6 is a turntable on which the food 4 is placed, 9 is a motor for rotating the turntable 6, and 12 is a motor from the food 4. An exhaust port for exhausting water vapor, 13 is an adjusting means made of a functionally graded material for adjusting the maximum power to the food 4, 14 is a driving means for electrically driving the adjusting means 12, 15 is a control means, and an oscillation source 2. The motor 9 and the driving means 14 are driven to control the adjusting means 13 made of the functionally graded material so that the maximum electric power is supplied according to the food 4. 16 is a part for inputting the menu of the food 4, 17 is a memory, and the control means 15 according to the menu of the food 4 (type, amount, etc.)
The control amount of the adjusting means 13 is stored therein.

FIGS. 2A and 2B are enlarged views for explaining the operation of the adjusting means 13 provided in the waveguide 3. FIG. Waveguide wavelength of waveguide within waveguide 3 (operating frequency of oscillation source)
2 shows an adjusting means made of a functionally graded material provided at 1/8 intervals of FIG. FIG. 2A shows a state in which power is not supplied to the functionally gradient material, and FIG. 2B shows a state in which electric power is driven in a pulsed manner to the functionally gradient material and the waveguide is driven in accordance with the number of pulses. 3 indicates stopping at an arbitrary position.

The operation of the above configuration will be described. The control unit 15 drives the driving unit 14 and adjusts the adjusting unit 1 provided in the waveguide 3 by using a functionally gradient material having １ ／ wavelength intervals.
Since 3-1, 13-2, and 13-3 change their shapes according to the food 4, it is possible to adjust and heat the maximum power of the oscillation source 2 on the Lieke chart shown in FIG. it can. The adjustment range is adjusted by adjusting means 13-1, 13-2,
The height of 13-3 and the interval of 1/8 wavelength can be covered, and the amount of deformation to be driven is stored in the memory 17 of the control means 15 in accordance with the cycle of the turntable 6 in the data of the food 4 measured in advance by experiment. Is what you are doing.

Further, according to the first embodiment of the present invention, if the functionally graded material is configured as a film configuration that smoothly changes the composition of the alloy of nickel and titanium, it can be used as a conventional shape memory alloy. Since it does not suddenly change at a certain temperature, it is most suitable for fine adjustment, and adjustment in accordance with the cycle of the turntable 6 is also possible. Since it is electrically short-circuited, there is no leakage of high frequency to the outside.

Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 4 is an overall configuration diagram of a high-frequency heating device according to a second embodiment of the present invention. Changing to the first embodiment, 18 is a changing means for changing the heating distribution of the food 4,
19 is a driving means for driving the changing means 18 by electricity, 1
Reference numeral 5 denotes a control unit that drives the oscillation source 2, the motor 9, and the driving unit 19 to perform control for changing a heating distribution according to the food 4. 16 is a part for inputting a menu of food 4;
20 is a memory according to the menu of the food 4 (type,
The amount of control by the changing means 18 is stored in the control means 15. Reference numerals 21-1 and 21-2 denote openings for emitting high-frequency waves from the waveguide 3.

FIGS. 5A and 5B are enlarged views for explaining the operation of the changing means 18 provided in the waveguide 3. FIG. Note that an insulating resin 22 for preventing sparking in the waveguide 3 is provided at the tip of the changing means 18. FIG. 5A shows a state where power is not supplied to the functionally graded material.
(B) shows that the power is driven in a pulsed manner to the functionally graded material and stops at an arbitrary position in the waveguide 3 according to the number of pulses.

The operation of the above configuration will be described. The control means 15 drives the driving means 19, and the functionally graded material changing means 18 provided in the waveguide 3 deforms the shape of the material according to the food 4. It is to be heated. In FIG. 5A, a high frequency is emitted from the opening 21-1 in a state where the changing unit 18 is not driven. In FIG. 5 (b), by driving the changing means 18, it can be stopped at an arbitrary position, and the high frequency is emitted from the openings 21-1 and 21-2. The amount of deformation of the changing means 18 is obtained by storing the data of the food 4 measured by the experiment in the memory 20
In accordance with the cycle of the turntable 6.

Further, similarly to the first embodiment, since the functionally graded material is most suitable for fine adjustment, it is possible to adjust the heating distribution of the food according to the cycle of the turntable 6.

Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 6 is an overall configuration diagram of a high-frequency heating device according to a third embodiment of the present invention. 23 is a changing means in the heating chamber 1 for changing the heating distribution of the food 4, 19 is a driving means for electrically driving the changing means 23, and 15 is a control means for controlling the oscillation source 2, the motor 9 and the driving means 19. Drive,
The control for changing the heating distribution in accordance with the food 4 is performed for heating. 16 is a part for inputting a menu of food 4;
20 is a memory according to the menu of the food 4 (type,
The amount of control by the changing means 23 is stored in the control means 15, and reference numeral 21 denotes an opening for emitting high frequency waves from the waveguide 3.

FIGS. 7A and 7B are enlarged views for explaining the operation of the changing means 23 provided in the heating chamber 1. FIG. The changing means 23 has a flat plate shape, and is coated with a paint for preventing sparking in the heating chamber 1. FIG. 7A shows a state where power is not supplied to the functionally graded material.
(B) is an operation equivalent to driving the gradient functional material in a pulsed manner, stopping at an arbitrary position in the heating chamber 1 and deforming the inside of the heating chamber according to the number of pulses. Is to be provided.

The operation of the above configuration will be described. The control means 15 drives the driving means 19, and the changing means 23 of the functionally graded material provided in the heating chamber 1 changes its shape in accordance with the food 4. FIG. 7A shows a state in which the changing means 23 is not driven, and the food 4 is heated in a certain mode generated by the internal dimensions. However, in FIG. 7B, by driving the changing means 23, it can be stopped at an arbitrary position, and various modes of the heating distribution due to the deformation of the interior of the heating chamber 1 occur. Therefore, uneven heating of the food 4 is eliminated. The deformation amount of the changing means 23 is obtained by storing the data of the heating distribution of the food 4 measured by the experiment in the memory 20 of the control means 15 in accordance with the cycle of the turntable 6.

Next, a fourth embodiment of the present invention will be described with reference to the drawings. FIG. 8 is an overall configuration diagram of a high-frequency heating device according to a fourth embodiment of the present invention. 13 is an adjusting means made of a functionally graded material for adjusting the maximum power to the food 4, 14 is a driving means for electrically driving the adjusting means 12, 24 is a detecting means for detecting a change in the physical quantity of the food 4, A gas sensor that detects water vapor or gas from the food 4, 25 is an infrared sensor that detects a surface temperature of the food 4 as detection means that detects a change in the physical quantity of the food 4, and 26 is a detection that detects a change in the physical quantity of the food 4 As a means, a high-frequency detection sensor for detecting high-frequency reflection in the heating chamber 1, and a light-emitting and light-receiving element 27 for detecting a shape of the food 4 and a change in the shape, as a detecting means for detecting a change in a physical quantity of the food 4. Is a temperature sensor that detects the temperature of the atmosphere in the heating chamber 1 as detection means for detecting a change in the physical quantity of the food 4, and 29 is As detection means for detecting a change in physical quantity, Food 4
A weight sensor 15 for detecting the weight of the food 4 or a change in weight is a control means, and a sensor is appropriately selected from detection means 24 to 29 for detecting a change in the physical quantity of the food 4, and the oscillation source 2, the motor 9, and the driving means 14 Is driven to control and heat the adjusting means 13 made of the functionally gradient material so that the maximum electric power is supplied according to the food 4. 16 is a part for inputting the menu of the food 4; 30 is a memory;
Stores the control amount of the adjusting means 13 based on the type, amount, shape, temperature, and ambient temperature from the various sensor signals 24 to 29 in accordance with the menu of the food 4.

The operation of the adjusting means 13 provided in the waveguide 3 is the same as in FIGS. 2A and 2B.

The operation of the above configuration will be described. The control unit 15 drives the drive unit 14 and adjusts the adjustment unit 1 provided in the waveguide 3 with a 1/8 wavelength-separated functionally gradient material.
3-1, 13-2, and 13-3 change their shapes in accordance with the signals from the sensors 24 to 29 that detect a change in the physical quantity from the food 4, so that on the Rieke chart shown in FIG.
It can be adjusted so that the maximum power of the oscillation source 2 is input. The adjustment range is adjusted by adjusting means 13-1, 13-2, 1
3-3 height and 1/8 wavelength spacing,
The amount of deformation to be driven is obtained by storing data on the relationship between various sensor signals and high-frequency power measured in advance in the memory 30 of the control means 15 in accordance with the cycle of the turntable 6.

Next, a fifth embodiment of the present invention will be described with reference to the drawings. FIG. 9 is an overall configuration diagram of a high-frequency heating device according to a fifth embodiment of the present invention. 23 is heating room 1
The changing means, which is made of a functionally graded material for changing the heating distribution of the food 4, is a driving means for electrically driving the changing means 23, and the sensors 24 to 29 are the same as those in the fourth embodiment. In the configuration, the control means 15 appropriately selects sensors from the means 24 to 29 for detecting a change in the physical quantity of the food 4, and drives the functionally graded material changing means 23 provided in the heating chamber 1 according to the food 4. The heating is performed while controlling the oscillation source 2 and the motor 9. 16 is a part for inputting the menu of the food 4; 31 is a memory;
5 indicates various sensor signals 24 according to the menu of the food 4.
The control amount of the change 23 based on the type, the amount, the shape, the temperature, and the ambient temperature is stored from the signals of (1) to (29) and heating is performed.

The operation of the changing means 23 provided in the heating chamber 1 is the same as in FIGS. 7A and 7B.

The operation of the above configuration will be described. The control means 15 drives the driving means 19, and the changing means 23 of the functionally graded material provided in the heating chamber 1 uses the sensor for detecting the change of the physical quantity from the food 4. The shape is changed according to the signals of 25 to 29. FIG. 7A shows a state in which the changing means 23 is not driven, and the food 4 is heated in a certain mode generated by the internal dimensions. However, in FIG. 7B, by driving the changing means 23, it can be stopped at an arbitrary position, and various modes of the heating distribution due to the deformation of the interior of the heating chamber 1 occur. Therefore, uneven heating of the food 4 is eliminated. The amount of deformation of the changing unit 23 is obtained by storing data on the relationship between various sensor signals measured in advance and the heating distribution in the memory 31 of the control unit 15 in accordance with the cycle of the turntable 6.

Next, a sixth embodiment of the present invention will be described with reference to the drawings. FIG. 10 is an overall configuration diagram of a high-frequency heating device according to a sixth embodiment of the present invention. 13 is food 4
An adjusting means 32 made of a functionally graded material for adjusting the maximum power to the power supply; 32, an adjusting drive means for electrically driving the adjusting means 12; and 23, for changing the heating distribution of the food 4 in the heating chamber 1. Changing means composed of functionally graded material,
33 is a change driving means for driving the change means 23 electrically, 24 to 29 are means for detecting a change in the physical quantity of the food 4 similarly to the fourth embodiment, and the control means 15 is
Appropriate sensors are selected from the means 24 to 29 for detecting a change in the physical quantity of the food 4, and the change driving means 33 and the adjustment driving means 32 are driven, and the functionally graded material provided in the heating chamber 1 corresponding to the food 4 is driven. Driving of the changing means 23 and driving of the functionally-graded material adjusting means 13 provided in the waveguide 3 to control the adjusting means 13 made of the functionally graded material so that the maximum electric power is supplied according to the food 4. It is to be heated. 16 is
The part for entering the menu of food 4, 30 is a memory,
The control unit 15 stores a control amount of the adjusting unit 13 based on the type, amount, shape, temperature, and ambient temperature from signals of various sensor signals 24 to 29 in accordance with the menu of the food 4. The operation of the adjusting means 13 provided in the waveguide 3 is as follows.
This is similar to FIGS. 2A and 2B.

The operation of the changing means 23 provided in the heating chamber 1 is the same as in FIGS. 7A and 7B.

The operation of the above configuration will be described. The control means 15 drives the driving means 19, and the changing means 23 of the functionally graded material provided in the heating chamber 1 uses the sensor for detecting a change in the physical quantity from the food 4. The shape is changed according to the signals of 25 to 29. FIG. 7B shows a state in which the changing means 23 is not driven, and the food 4 is heated in a certain mode generated by the internal dimensions. However, in FIG. 7B, by driving the changing means 23, it can be stopped at an arbitrary position, and various modes of the heating distribution due to the deformation of the interior of the heating chamber 1 occur. Further, the control means 15 drives the drive means 14 to control the waveguide 3
The adjusting means 13-1, 13-2, 13-3 made of a functionally graded material with １ ／ wavelength interval provided therein correspond to signals from sensors 24 to 29 for detecting a change in physical quantity from the food 4. Since the shape is deformed, it is possible to adjust the maximum power of the oscillation source 2 on the Lieke chart shown in FIG. Therefore, the control unit 15 adjusts the maximum power of the oscillation source 2 while eliminating uneven heating of the food 4. The amount of deformation of the changing unit 23 is obtained by storing data on the relationship between various sensor signals measured in advance and the heating distribution in the memory 31 of the control unit 15 in accordance with the cycle of the turntable 6. in addition,
The adjustment range of the adjustment drive unit 32 is adjusted by the adjustment units 13-1 and 1-1.
3-2, 13-3 and the interval of 1/8 wavelength, and the data of the relationship between various sensor signals measured in advance and the high frequency power can be stored in the memory 30 of the control means 15.
And stored in accordance with the cycle of the turntable 6.

[0045]

As described above, the high-frequency heating apparatus of the present invention has the following effects.

(1) Since the control means adjusts the adjusting means made of the functionally graded material by the driving means, the electric power entering the food in the heating chamber can be adjusted. Electricity savings and energy savings can be realized by improving efficiency.

(2) Since the control means deforms the changing means formed of the functionally graded material in the waveguide by the driving means, the heating pattern of the food can be easily changed.
In addition to eliminating uneven heating of foods, it is also possible to concentrate the heating distribution of liquid foods and the like, thereby improving the heating efficiency.

(3) The control means can deform the changing means made of the functionally graded material in the heating chamber by the driving means and form various heating distributions in the heating chamber, so that the whole food can be uniformly heated. In particular, thawing is not boiled, and if the whole food is to be heated at a certain temperature, it has the effect of not impairing the umami of the food (for example, 65 degrees in the case of protein).

(4) The control means includes information on the physical quantity of the food,
Since the adjusting means made of the functionally graded material in the waveguide is deformed by the driving means based on the change, the user does not need to make troublesome settings for each food, and the maximum power is automatically supplied to the food in the heating chamber. Can be entered.

(5) The control means includes information on a physical quantity of the food,
Since the changing means made of the functionally graded material is deformed by the driving means based on the change, the user does not need to make troublesome settings for each food, and easily changes the heating pattern of the food in the heating chamber automatically. This allows the food to be heated with optimal finish.

(6) The control means includes information on the physical quantity of the food,
The changing means constituted by the functionally graded material is deformed by the change driving means based on the change, and the adjustment means constituted by the functionally graded material in the waveguide is deformed by the adjustment driving means based on the information on the physical quantity of the food and the change. So, while automatically changing the heating pattern of food in the heating chamber automatically,
The maximum power can be automatically applied to the food in the heating chamber, and a high-frequency heating device that simultaneously satisfies the energy saving and the result of heating the food can be provided, and the usability can be improved.

[Brief description of the drawings]

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

FIG. 2A is an enlarged view for explaining the operation of the adjusting means of the high-frequency heating device. FIG. 2B is an enlarged view for explaining the operation of the adjusting means of the high-frequency heating device.

FIG. 3 is a Rieke chart illustrating adjustment of high-frequency power of the high-frequency heating device.

FIG. 4 is an overall configuration diagram of a high-frequency heating device according to a second embodiment of the present invention.

FIG. 5A is an enlarged view for explaining the operation of the changing means of the high-frequency heating device. FIG. 5B is an enlarged view for explaining the operation of the changing means of the high-frequency heating device.

FIG. 6 is an overall configuration diagram of a high-frequency heating device according to a third embodiment of the present invention.

FIG. 7A is an enlarged view for explaining the operation of the changing means of the high-frequency heating device. FIG. 7B is an enlarged view for explaining the operation of the changing means of the high-frequency heating device.

FIG. 8 is an overall configuration diagram of a high-frequency heating device according to a fourth embodiment of the present invention.

FIG. 9 is an overall configuration diagram of a high-frequency heating device according to a fifth embodiment of the present invention.

FIG. 10 is an overall configuration diagram of a high-frequency heating device according to a sixth embodiment of the present invention.

FIG. 11 is an overall configuration diagram of a conventional high-frequency heating device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Heating chamber 2 Oscillation source 3 Waveguide 4 Food 13 Adjusting means 14, 19 Driving means 15 Control means 18, 23 Changing means 24, 25, 26, 27, 28, 29 Detecting means 32 Adjusting driving means 33 Changing driving means

Claims (7)

(57) [Claims] 1. An oscillation source for oscillating high frequency, a heating chamber for heating food, and a waveguide for guiding the high frequency to the heating chamber.
It comprises adjusting means made of a functionally graded material in the waveguide to adjust the power entering the food, driving means for driving the adjusting means, and control means for controlling the oscillation source and the driving means. High frequency heating device. 2. An oscillation source for oscillating a high frequency, a heating chamber for heating food, and a waveguide for guiding the high frequency to the heating chamber.
It comprises a changing means in the waveguide made of a functionally gradient material for changing a heating distribution of the food, a driving means for driving the changing means, and a control means for controlling the oscillation source and the driving means. High frequency heating device. 3. An oscillation source for oscillating high frequency, a heating chamber for heating food, and a waveguide for guiding the high frequency to the heating chamber.
A high-frequency device comprising a changing means in the heating chamber, which is made of a functionally graded material for changing a heating distribution of the food, a driving means for driving the changing means, and a control means for controlling the oscillation source and the driving means. Heating equipment. 4. An oscillation source for oscillating high frequency, a heating chamber for heating food, and a waveguide for guiding the high frequency to the heating chamber.
Adjusting means, which is made of a functionally graded material in the waveguide and adjusts the power entering the food, driving means for driving the adjusting means, and detecting means for detecting a physical quantity of at least one food in the heating chamber And a control means for controlling the oscillation source and the driving means based on information from the detection means. 5. An oscillation source for oscillating a high frequency, a heating chamber for heating a food, and a waveguide for guiding the high frequency to the heating chamber.
Changing means made of a functionally graded material for changing the heating distribution of the food, driving means for driving the changing means, detecting means for detecting a physical quantity of at least one food in the heating chamber, and information of the detecting means A high-frequency heating device comprising: a control unit for controlling the oscillation source and the driving unit. 6. An oscillation source for oscillating high frequency, a heating chamber for heating food, and a waveguide for guiding the high frequency to the heating chamber.
An adjusting unit that is made of a functionally gradient material that adjusts the power entering the food in the waveguide, an adjusting and driving unit that drives the adjusting unit, and a functionally gradient material that changes the heating distribution of the food; Changing means, changing driving means for driving the changing means, detecting means for detecting a physical quantity of at least one food in the heating chamber, and control means for controlling the oscillation source and the driving means based on information of the detecting means. And a high-frequency heating device. 7. The high-frequency heating apparatus according to claim 1, wherein the electric power entering the food is adjusted to be the maximum electric power.