JPH10300097A - Microwave oven - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a heating efficiency and a finished state of a cooked item. SOLUTION: A top plate of a cooking chamber 4 is provided with a vibration excitation port 8 eccentrically shifted in a forward direction and a leftward direction. When a magnetron 10 is operated, microwave is emitted toward a forward left side part of a rotating pan 6 through the port 8. In this case, a concentrated region of the microwave is illuminated by a spot light 18. When a cooked item is set in the illuminated region to start cooking operation, microwave is concentrically emitted to the cooked item under a state in which the rotating pan 6 is not rotated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a microwave oven having a structure for adjusting the heating intensity of a food.

[0002]

In a microwave oven, uneven heating may occur in the cooked food due to the position of the opening of the microwave irradiation port and standing waves in the cooking chamber. For this reason, conventionally, the cooked food has been uniformly heated as described in (1) or (2) below. (1) A microwave is uniformly radiated on the food as the cooking dish is rotated. (2) The microwave is agitated by rotating the metal fan, and the microwave is uniformly applied to the food.

[0003] However, when the food is much smaller than the cooking dish, it is inefficient to irradiate the cooking dish uniformly with microwaves, and it is more efficient to irradiate the microwave to a range suitable for the size of the cooking dish. good. In addition, when microwaves are uniformly irradiated when warming a lunch box or the like, raw vegetables, pickles, and the like are warmed up, and the finished state deteriorates.

[0004] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a microwave oven capable of improving the heating efficiency and finished state of cooked food.

[0005]

According to a first aspect of the present invention, there is provided a microwave oven, comprising: a cooking dish provided in a cooking chamber and on which cooking items are set; and a magnetron for irradiating microwaves into the cooking chamber. Is provided with a concentrated area where the microwaves are concentrated, and the concentrated area of the microwave is displayed by the display means.

[0006] According to the above means, when cooking one cup of milk or the like, if the food is set in the microwave concentration area, the microwave is intensively irradiated on the food, so that the heating efficiency is improved. . Moreover, when warming a lunch box, etc., setting rice and the like in the concentrated area and setting raw vegetables and the like outside the concentrated area will increase the amount of microwave irradiation on rice and the like, and increase the amount of microwave irradiation on raw vegetables and the like. Is reduced, so that the finished state of the food is improved.

A microwave oven according to a second aspect of the present invention is characterized in that a microwave concentration region is set on the side of an opening of a cooking chamber in a cooking dish. According to the above means, it is not necessary to insert the hand deeply when setting the food in the concentration area or taking it out of the cooking chamber, so that the food can be easily taken in and out. Moreover, since the microwave concentration area can be easily recognized from the door side, it is easy to set the food in the concentration area.

According to a third aspect of the present invention, in the microwave oven, a microwave irradiation port is provided on an opening side of the cooking chamber in the top plate of the cooking chamber, and the irradiation port is passed through an opening side of the cooking chamber in the cooking dish. The feature is that microwaves are intensively irradiated. According to the above means, since the microwave is intensively irradiated on the cooking dish from the irradiation port located on the top plate of the cooking chamber, compared with the case where the microwave is intensively irradiated from the irradiation port located on the side plate of the cooking chamber, the The concentrated irradiation of waves is performed efficiently.

A microwave oven according to a fourth aspect of the present invention is characterized in that the display means comprises a spotlight for illuminating a microwave concentrated area. According to the above means, the concentrated area of the microwave is illuminated, so that it is easier to recognize the concentrated area than in the case where a mark or the like is printed on a cooking dish and the concentrated area is displayed.

The microwave oven according to the fifth aspect is characterized in that the illumination color of the spotlight is different from the illumination color of the interior lamp for illuminating the cooking chamber. According to the above means, it is possible to display the microwave concentration area while illuminating the entire cooking chamber. For this reason, the set state of the food, the heating state of the food, and the like can be checked from the outside of the apparatus, and the usability is improved.

According to a sixth aspect of the present invention, in the microwave oven, when the door of the cooking chamber is open or when microwave irradiation is designated, the display means displays the microwave concentration area. It has features. According to the above means, when the door is opened, the microwave concentration area is displayed, so that it is easy to set the food in the concentration area. Also, when concentrated irradiation of microwaves is specified,
Since the region where the microwaves are concentrated is displayed, it is possible to display the state where the microwaves are being irradiated on the food.

A microwave oven according to a seventh aspect of the present invention includes a warming key and control means for controlling heating and cooking. When the warming key is operated, the control means rotates the cooking dish from a non-rotating state during heating. It has a characteristic in that it is in a state. According to the above means, when the warm key is operated, the cooking dish is changed from the non-rotating state to the rotating state during heating. For this reason, especially when warming the lunch box, the overall temperature of the food is slightly increased, so that the finished state of the food is improved.

According to another aspect of the present invention, there is provided a microwave oven comprising a temperature detecting means for detecting a temperature of the food, wherein the control means detects the temperature of the food based on an output signal from the temperature detecting means. It is characterized in that when this is detected, the cooking dish is changed from the non-rotating state to the rotating state. According to the above means, when the output signal from the temperature detecting means becomes equal to or more than the predetermined value, the cooking dish rotates. For this reason, the surface temperature of the food does not become too hot or too low, and the overall temperature slightly increases from the time when the temperature reaches an appropriate value, thereby further improving the finished state of the food.

The microwave oven according to the ninth aspect is characterized in that the microwave oven is provided with a stirring means for stirring the microwave, and the stirring is started in the middle of heating. According to the above means, the microwave is stirred during the heating, and the microwave is applied to the entire area of the cooking dish substantially uniformly without rotating the cooking dish.

The microwave oven according to the present invention is characterized in that an operation key for selecting rotation and non-rotation of the cooking dish or rotation and non-rotation of the stirring means is provided. According to the above means, for example, when warming up a glass of milk or the like, if the operation key is operated to select non-rotation of the cooking dish and the stirring means, the microwaves are intensively irradiated on the food. Also, when warming up multiple cups of milk,
If the rotation of the cooking dish and the stirring means is selected by operating the operation keys, the microwave is uniformly applied to the food. Therefore, since the heating state can be arbitrarily selected according to the food, the finished state is further improved.

[0016]

FIG. 1 shows a first embodiment of the present invention.
A description will be given with reference to FIG. First, in FIG.
The microwave oven body 1 has an inner box 3 arranged inside an outer box 2, and the inside of the inner box 3 functions as a cooking chamber 4. A door 5 is rotatably mounted on the outer box 2, and an opening 4 a on the front surface of the cooking chamber 4 is opened and closed as the door 5 rotates.

On the bottom plate of the cooking chamber 4, as shown in FIG.
The shaft 6a of the rotating plate 6 is rotatably mounted.
The rotating plate 6 is for placing a food item at the time of cooking, and the shaft 6a is disposed at a central portion in the front-rear direction and a central portion in the left-right direction of the cooking chamber 4.

An RT motor 7 is provided in the microwave oven main body 1. When the RT motor 7 operates, the rotational force of the RT motor 7 is transmitted to the rotary plate 6 through the shaft 6a, and the rotary plate 6 is connected to the shaft 6a. Rotate around. The rotating plate 6 corresponds to a cooking plate, and is made of glass or ceramic.

The top plate of the inner box 3 is provided with an excitation port 8 corresponding to an irradiation port. The excitation port 8 is formed by a punching opening, and is disposed on the door 5 side of the center of the cooking chamber 4 in the front-rear direction and on the left side of the center of the cooking chamber 4 in the left-right direction. The waveguide 9 is attached to the top plate of the inner box 3, and the excitation port 8 is covered by the left end of the waveguide 9.

On the right side of the microwave oven main body 1, a machine room (not shown) is formed between the outer case 2 and the inner case 3, and the right end of the waveguide 9 is located in the machine room. Are located in A magnetron 10 is attached to the right end of the waveguide 9, and when the magnetron 10 is operated, as shown in FIG. The microwave is intensively applied to the left side.

Note that the two-dot chain line α in FIG. 2A defines a microwave concentration area. The two-dot chain line β
Defines a highly concentrated region where the microwaves are particularly concentrated.

As shown in FIG. 4, an operation panel 11 is provided on the right side of the microwave oven body 1, and a start key 12 is mounted on the operation panel 11. In the machine room, a control device 13 corresponding to a control unit is provided.
(See FIG. 3). The control device 13 is mainly composed of a microcomputer. When the start key 12 is operated, a cooking start command signal is given to the control device 13.

The microwave oven body 1 has a door switch 14
(See FIG. 3). This door switch 14
Is a micro switch that is turned on when the door 5 is closed and turned off when the door 5 is opened.
Detects the cooking start command signal, the door switch 14
Judge the state of. Then, power is supplied to the magnetron 10 only when the door switch 14 is turned on,
The operation of the start key 12 is validated.

On the right side plate of the inner box 3, as shown in FIG.
A light emitting window 15 is provided. On the right side of the light emitting window 15, a white interior light 16 is disposed in the machine room, and when the interior light 16 emits light, white light enters the cooking chamber 4 through the light emitting window 15. The light is projected, and the entire inside of the cooking chamber 4 is illuminated in white.

A light projecting window 17 is provided on the top plate of the inner box 3. A red spotlight 18 corresponding to a display means is disposed above the light-emitting window 17. When the spotlight 18 emits light, the cooking room 4 passes through the light-emitting window 17.
Red light is projected on the left front side inside the inside, and the microwave concentration area α is illuminated in red.

The operation panel 11, as shown in FIG.
A rotation key 19 corresponding to an operation key is mounted, and when the rotation key 19 is operated, the control device 1 is operated by the rotation key 19.
A rotation command for the rotating plate 6 and a non-rotating command for the rotating plate 6 are alternately given to 3. The operation panel 11 includes a display device 20.
Is mounted, and the control device 13 displays cooking information such as an operation state of the rotary key 19 on the display device 20.

Next, the operation of the above configuration will be described. <Centralized Heating of Cooking> For warming up, for example, one cup of rice, milk or the like, the door 5 is opened and the cooking is placed on the rotating plate 6. At this time, the control device 13 operates the door switch 1
When the opening of the door 5 is detected based on the turning off of 4, power is supplied to the spotlight 18 to illuminate the front left portion (microwave concentration area α) of the rotating plate 6 with red, so that the cooked food is illuminated with red. Set within the range.

After the food is set on the cooking dish 6, the door 5 is first closed. Then, the control device 13 detects the blockage of the door 5 based on the turning on of the door switch 14, turns off the spotlight 18, and stops the red illumination. next,
The display on the display device 20 is switched to the “non-rotation mode” by operating the rotation key 19. Then, the control device 13 switches the cooking mode to the non-rotation mode based on the output signal from the rotation key 19.

After operating the rotation key 19, the start key 12 is operated. Then, the control device 13 supplies power to the magnetron 10 until the cooking is completed, and irradiates the microwave on the front left portion of the rotating plate 6 in a concentrated manner, as shown in FIG. At the same time, power is supplied to the interior light 16 and the spotlight 18 to illuminate the microwave concentration area α in red while illuminating the entire cooking chamber 4 in white.

<Uniform heating of food> For example, a plurality of cups of rice,
When warming milk or the like, the food is placed on the rotating plate 13 with the door 5 opened. At this time, the control device 13
Detects the opening of the door 5 based on the turning off of the door switch 14, supplies power to the spotlight 18, and
Illuminates the front left side of the red.

After the food is set on the cooking dish 6, the door 5 is first closed. Then, the control device 13 detects the closing of the door 5 based on the turning on of the door switch 14 and cuts off the power of the spotlight 18. Next, the display on the display device 20 is switched to the “rotation mode” by operating the rotation key 19.
Then, the control device 13 switches the cooking mode to the rotation mode based on the output signal from the rotation key 19.

After operating the rotation key 19, the start key 12 is operated. Then, the controller 13 supplies power to the RT motor 7 and the magnetron 10 until the cooking is completed, and irradiates the microwave while rotating the rotating plate 6, as shown in FIG. Microwaves are uniformly applied to substantially the entire area of the dish 6. Along with this, interior light 1
Power is supplied to 6 to illuminate the entire cooking chamber 4 in white.
The two-dot chain line α1 in FIG. 2B indicates a uniform irradiation area formed by rotating the concentrated area α.
The two-dot chain line β1 indicates a uniform irradiation area where the high concentration area β is rotated.

According to the above embodiment, the microwave is concentrated on a part of the rotating plate 6 and the microwave concentration area α
Was displayed. For this reason, when cooking one cup of milk or the like, if the food is set in the concentration area α, the microwave is intensively irradiated on the food, so that the heating efficiency is improved and the cooking time is shortened. In addition, when warming a lunch box or the like, setting the rice and the like in the concentration area α and setting the raw vegetables and the like outside the concentration area α increases the microwave irradiation amount on the rice and the like and increases the microwave irradiation on the raw vegetables and the like. Since the irradiation amount is reduced, the finished state of the food is improved.

A part of the microwave irradiated into the cooking chamber 4 is absorbed by the cooking product, and the remaining microwave transmitted through the cooking product is reflected by the bottom surface of the cooking chamber 4 and then reflected by the cooking chamber 4. Are dispersed in the cooking chamber 4 with an electric field distribution determined by the shape, size, etc. Since the heating state of the food is determined by the microwaves absorbed by the food, the concentrated area α is strongly heated.

The microwave concentration area α is set in the rotating plate 6 on the side of the opening 4 a of the cooking chamber 4. For this reason, it is not necessary to insert the hand deeply when setting the food in the concentration area α or taking out the food from the cooking chamber 4, so that the food can be easily taken in and out. Moreover, since the microwave concentration area α can be easily recognized from the door 5 side, it is easy to set the food in the concentration area α.

Further, an excitation port 8 is provided on a top plate of the cooking chamber 4,
The microwave was intensively irradiated to the opening 4a side of the rotating plate 6 through the excitation port 8. Therefore, the excitation port 8 is provided on the side plate of the cooking chamber 4.
And the concentrated irradiation of microwaves is performed more efficiently than the case where the microwaves are concentratedly irradiated on the rotating plate 6 through the excitation port 8.

The spotlight 18 was used to display the microwave concentration area α. For this reason,
It is easier to recognize the concentrated area α than when a mark or the like is printed on the rotating plate 6 to display the concentrated area α.

Further, the interior light 1 for illuminating the whole area of the cooking chamber 4
7 is different from the illumination color of the spotlight 18 that illuminates the microwave concentration area α.
The concentrated area α can be displayed while illuminating the whole area. For this reason, the set state and the heated state of the food can be easily checked from outside the machine, and the usability is improved.

Further, since the microwave concentration area α is displayed when the door 5 is opened, it becomes easy to set the food in the concentration area α. When the microwave irradiation is designated by the rotary key 19 (when the non-rotation of the rotating plate 6 is designated), the concentrated area α is displayed during the execution of the cooking. It is possible to display the state of being irradiated with the microwave.

The operation of the rotary key 19 causes the rotating plate 6 to rotate.
Rotation and non-rotation were selected. Therefore, when warming one cup of milk or the like, if the rotation key 19 is operated to select the non-rotation of the rotating plate 6, microwaves are intensively applied to the food. Further, when warming a plurality of cups of milk or the like, if the rotation key 19 is operated to select the rotation of the rotating plate 6, microwaves are uniformly applied to the food. Therefore, since the heating state can be arbitrarily selected according to the food, the finished state is further improved.

Next, a second embodiment of the present invention will be described with reference to FIGS.
It will be described based on. The same members as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only different members will be described. First, in FIG. 6, a key 21 for warming the valve is mounted on the operation panel 11. When the key 21 is operated for warming the valve, the control device 13 supplies power to the magnetron 10, and The part is intensively irradiated with microwaves. At the same time, power is supplied to the interior light 16 and the spotlight 18 to illuminate the microwave concentration area α in red while illuminating the entire cooking chamber 4 in white.

As shown in FIG. 5, in the microwave oven main body 1, a temperature sensor 22 corresponding to temperature detecting means is disposed above the light projecting window 17. This temperature sensor 2
Reference numeral 2 denotes a pyroelectric infrared sensor for detecting the surface temperature of the food through the light emitting window 17, and the control device 13
Detects that the surface temperature of the food has become equal to or higher than the reference value based on the output signal from the temperature sensor 22,
After power is supplied to the motor 7 for a predetermined time and the rotating plate 6 is rotated for a predetermined time, the RT motor 7 and the magnetron 1 are rotated.
0, the interior light 16 and the spotlight 18 are turned off, and the cooking is terminated.

According to the above embodiment, the lunchtime key 2
In operation 1, the rotating plate 6 was changed from a non-rotating state to a rotating state during heating. For this reason, especially when warming a lunch box, the whole temperature of the food can be slightly increased, so that the finished state of the food is improved.

When the output signal from the temperature sensor 22 has exceeded a predetermined value, the rotating plate 6 is changed from the non-rotating state to the rotating state. For this reason, the surface temperature of the food does not become too hot or too low, and the overall temperature slightly increases from the time when the temperature reaches an appropriate value, thereby further improving the finished state of the food.

In the second embodiment, the rotating plate 6
Is determined based on the surface temperature of the food, but is not limited to this. For example, the rotation timing may be determined based on the cooking time (for example, if the cooking time is T, 0 The rotating plate 6 is kept in a non-rotating state until 0.9T, and the rotating plate 6 is rotated from 0.9T to T).

In the second embodiment, the cooking is started in response to the operation of the key 21 for the lunch box. However, the present invention is not limited to this.
The cooking may be started with the operation of the start key 12.

Next, a third embodiment of the present invention will be described with reference to FIG. The same members as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted. Hereinafter, only different members will be described. An opening 4b is provided on the top plate of the cooking chamber 4.
Are formed. A casing 23 is attached to the top plate of the cooking chamber 4, and the opening 4 b is covered by the casing 23. The casing 23 is covered with a mica layer or a glass layer, and an excitation port 24 corresponding to an irradiation port is provided on the front left side of the casing 23.

In the casing 23, a metal fan 25 corresponding to a stirring means is disposed. When the fan 25 rotates with the operation of the fan motor 26, the casing 23 passes from the waveguide 9 through the opening 4b. The microwave applied to the inside of the cooking chamber 4 is stirred, and is applied to the entire area of the cooking chamber 4 through the excitation port 24. In addition, a cooking dish 27 is mounted in the center of the cooking chamber 4. The cooking dish 27 is formed of glass, ceramic, or the like, and
Non-rotatably (= fixed).

According to the above embodiment, when the start key 12 is operated after the display on the display device 20 is switched to the "rotation mode" by operating the rotation key 19, the control device 13
Power is supplied to the magnetron 10 and the fan motor 26. Then, the microwave is stirred with the rotation of the fan 25, and is supplied into the cooking chamber 4 from the excitation port 24. Therefore, the microwave is applied to the entire area of the cooking dish 27 substantially uniformly without rotating the cooking dish 27.

In the third embodiment, the fan 25 is rotated when the rotary key 19 is operated. However, the present invention is not limited to this. For example, as in the second embodiment of the present invention, the valve 25 is rotated. The rotation of the fan 25 may be automatically started during the heating of the key 21 (= when the output signal from the temperature sensor 22 or the cooking time reaches a predetermined value). In the case of this configuration, particularly in a microwave oven installed in a convenience store or the like, a finished state of a lunch box or the like is improved by a simple operation.

In the first to third embodiments,
When the rotation mode is selected by the rotation key 19,
While only the interior light 16 is turned on during cooking, the invention is not limited to this. For example, both the interior light 16 and the spotlight 18 may be turned on.

In the first to third embodiments,
When the non-rotation mode is selected by the rotation key 19, the interior light 16 and the spotlight 18 are turned on during cooking. However, the invention is not limited to this. For example, only the spotlight 18 may be turned on.

In the first to third embodiments,
Although only the spotlight 18 is turned on when the door 5 is opened, the present invention is not limited to this.
Alternatively, both the spotlight 18 and the spotlight 18 may be turned on.

In the first to third embodiments,
The operation state of the rotation key 19 is displayed on the display device 20. However, the present invention is not limited to this. For example, when the non-rotation mode is selected, the spotlight 18 is turned on.
When the rotation mode is selected, the operation state of the rotation key 19 may be displayed by turning on the interior light 16.

In the first to third embodiments,
In displaying the microwave concentration area α, the rotating plate 6 and the cooking plate 27 are illuminated by the spotlight 18. However, the present invention is not limited to this.
Alternatively, a mark or the like may be printed on the cooking dish 27. In the case of this configuration, it is preferable that the rotation of the rotating plate 6 and the cooking plate 27 be stopped so that the mark is located at the front left portion (microwave concentration area α) at the end of cooking.

In the first to third embodiments,
Although the concentration area α is set in the left front part of the rotating plate 6 and the cooking dish 27, the present invention is not limited to this. For example, the concentration area α may be set in the right front part or the front center part.

In the first to third embodiments,
Although the light emission color of the interior light 16 is set to white and the light emission color of the spotlight 18 is set to red, the invention is not limited to this. For example, the light emission color of the spotlight 18 may be set to green.

In the first to third embodiments,
Although the rotation mode and the non-rotation mode are set alternately according to the operation of the rotation key 19, the present invention is not limited to this. For example, a dedicated key for setting the rotation mode and a non-rotation mode A dedicated key for setting may be provided.

In the first to third embodiments,
Although the present invention has been applied to a dedicated range cooking machine, the present invention is not limited to this, and may be applied to, for example, a microwave oven having a heater cooking function.

[0060]

As is apparent from the above description, the microwave oven of the present invention has the following effects. According to the first aspect of the present invention, since the microwave is concentrated on a part of the cooking dish and the microwave concentration area is displayed, the food can be selectively set in the concentration area. For this reason, the heating intensity of the food can be arbitrarily adjusted, so that the heating efficiency and the finished state of the food are improved. According to the second aspect of the present invention, since the microwave concentration area is set on the side of the cooking dish on the side of the opening of the cooking chamber, it is easy to put the food in and out. In addition, since the concentration area can be easily recognized from the door side, it is easy to set the food in the concentration area.

According to the third aspect of the present invention, the irradiation port is provided on the top plate of the cooking chamber, and the microwave is concentrated on the cooking dish through the irradiation port, so that the concentrated irradiation of the microwave is efficiently performed. . According to the fourth aspect of the present invention, since the spotlight is used for displaying the concentrated area of the microwave, the concentrated area can be easily recognized as compared with the case where the mark is printed on the rotating plate to display the concentrated area. Become.

According to the fifth aspect of the present invention, the illumination color of the interior lamp and the illumination color of the spotlight are different, so that the microwave concentrated area can be displayed while illuminating the cooking chamber. For this reason, the set state and the heated state of the food can be easily checked from outside the machine, and the usability is improved. According to the sixth aspect of the present invention, since the microwave concentration area is displayed when the door is opened, it is easy to set the food in the concentration area. In addition, since the microwave concentrated area is displayed when the microwave concentrated irradiation is designated, it is possible to display a state in which the microwave is irradiated on the food.

According to the seventh aspect of the invention, when the warming key is operated, the cooking dish is switched from the non-rotating state to the rotating state during heating. For this reason, especially when warming a lunch box, the whole temperature of the food can be slightly increased, so that the finished state of the food is improved. According to the means described in claim 8, the rotation timing of the cooking dish is determined based on the output signal from the temperature detecting means. For this reason, since the whole temperature rises slightly from the time when the surface temperature of the food reaches an appropriate value, the finished state of the food is further improved.

According to the ninth aspect, the microwave is agitated by the radio wave agitating means. For this reason, the microwave is irradiated substantially uniformly over the entire area of the cooking dish without rotating the cooking dish. According to the tenth aspect of the present invention, the microwave irradiation and the uniform irradiation can be selected according to the cooking according to the operation of the operation key, so that the finished state is improved.

[Brief description of the drawings]

FIG. 1 is a diagram showing a first embodiment of the present invention (vertical front view schematically showing the entire configuration).

FIG. 2 is a diagram showing heating intensity of microwaves;

FIG. 3 is a block diagram showing an electrical configuration.

FIG. 4 is a perspective view showing the entire configuration.

FIG. 5 is a view corresponding to FIG. 1 showing a second embodiment of the present invention.

FIG. 6 is a diagram corresponding to FIG. 4;

FIG. 7 is a view corresponding to FIG. 1 showing a third embodiment of the present invention.

[Explanation of symbols]

4 is a cooking room, 4a is an opening, 5 is a door, 6 is a rotating dish (cooking dish), 8 is an excitation port (irradiation port), 10 is a magnetron, 1
3 is a control device (control means), 16 is an interior light, 18 is a spotlight (display means), 19 is a rotary key (operation key), 21 is a lunch key (warm key), 22
Denotes a temperature sensor (temperature detecting means), 25 denotes a fan (stirring means), and 27 denotes a cooking dish.

Claims (10)

[Claims] 1. A cooking dish provided in a cooking chamber, on which cooking items are set, and a magnetron for irradiating microwaves into the cooking chamber, wherein the cooking dish is provided with a concentration area where microwaves are concentrated. The microwave concentration area is displayed by display means. 2. The microwave oven according to claim 1, wherein the microwave concentration area is set on the side of the cooking dish on the side of the opening of the cooking chamber. 3. A microwave irradiation port is provided on a top plate of the cooking chamber at an opening side of the cooking chamber, and a microwave is provided on the cooking dish through the irradiation port toward the opening of the cooking chamber. 2. The microwave oven according to claim 1, wherein the microwaves are irradiated in a concentrated manner. 4. The microwave oven according to claim 1, wherein the display means comprises a spotlight for illuminating a microwave concentrated area. 5. The microwave oven according to claim 4, wherein the illumination color of the spotlight is different from the illumination color of the interior light for illuminating the cooking chamber. 6. The microwave concentration area according to claim 1, wherein the display means displays the microwave concentration area when the door of the cooking chamber is open or when microwave irradiation is designated. The microwave oven as described. 7. A warming key, and a control means for controlling heating and cooking, wherein the controlling means, when the warming key is operated,
2. The microwave oven according to claim 1, wherein the cooking dish is changed from a non-rotation state to a rotation state during heating. 8. A temperature detecting means for detecting the temperature of the food, wherein the control means detects that the temperature of the food has reached a predetermined value or more based on an output signal from the temperature detecting means. 8. The microwave oven according to claim 7, wherein the microwave oven is changed from a non-rotation state to a rotation state. 9. A stirrer for stirring microwaves,
2. The microwave oven according to claim 1, wherein the stirring means is operated during heating. 10. Rotation and non-rotation of a cooking dish, or
10. The microwave oven according to claim 1, further comprising an operation key for selecting rotation or non-rotation of the stirring means.