JP2003307310A - Heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating cooker capable of steam heating using the minimum number of heaters. <P>SOLUTION: This heating cooker can take a heater heating state heating a heating object housed in a heating chamber 2 by a heating heater 13 by setting a directional control valve 12 in a first state, a steam heating state heating the heating object in the heating chamber by delivering steam to the heating chamber 2 via a heating tube 11 while heating the steam from a stem generator 7 by the heating heater 13 by setting the directional control valve 12 in a second state, and an air heating state heating the heating object in the heating chamber by delivering outside air to the heating chamber 2 via the heating tube 11 while heating the outside air by the heating heater 13 by setting the directional control valve 12 in a third state. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cooking device having a heating function with high-temperature steam and a heating function with high-temperature air.

[0002]

2. Description of the Related Art As shown in FIG. 6, a conventional heating and cooking apparatus of this type is formed of a net body or a dish body on which an object 34 to be heated is placed on the bottom surface of a heating chamber 32 formed in a cooking apparatus body 31. The heating target placing table 33 is detachably provided, and on the other hand, between the outer surface of one side wall of the heating chamber 32 and the inner surface of the side wall of the cooking apparatus body 31, a water container 36 and a steam generating heater 37 are provided at the bottom thereof. And a steam superheater 38 for heating the steam generated in the steam generator 35 to superheat the steam generated above the steam generator 35, and the steam superheater 38. The steam superheated by the steam superheater 38 is discharged into the heating chamber 32 from a steam discharge port 39 provided on one side wall of the heating chamber 32 by driving a blower fan 40.

In such a structure, the water in the water container 36 is heated by the steam generating heater 37 to generate steam, and the generated steam is driven upward by the driving of the blower fan 40 while heating the steam midway. The object to be heated 34 on the object-to-be-heated mounting table 33 is heated and cooked by being heated by the heater 38 and being discharged as high-temperature superheated steam of 100 ° C. or higher from the steam discharge port 39 into the heating chamber 32. There is.

In the course of this overheating cooking, the heating chamber 32
Excess steam inside is exhausted to the outside through an exhaust port 41 provided on the other side wall surface of the heating chamber 32.

Further, in the conventional heating and cooking apparatus, in addition to the function of heating and cooking with steam, the far-infrared heater 42 provided on the ceiling of the heating chamber 32 can heat the object 34 to be heated, and the far-infrared heater is used. At 42, the steam discharged and supplied from the steam discharge port 39 into the heating chamber 32 can be further heated to be further heated to be supplied to the object 34 to be heated.

[0006]

DISCLOSURE OF INVENTION Problems to be Solved by the Invention In a conventional cooking device having a heating function by superheated steam of high temperature steam,
Because of the above configuration, three heater means, that is, the steam generating heater 37, the steam superheater 38, and the far-infrared heater 42 are required as heaters that serve as heat sources, which increases the installation cost and the cooking device. There is a problem in that downsizing is prevented, and moreover, a large number of heaters are used, power consumption is increased, and an economic burden on the user increases.

[0007]

The present invention has been made in view of the above problems of the prior art. First, in the present invention,
A heating chamber is formed in the main body of the cooking device and a steam generator is provided outside the heating chamber in the main body of the cooking device.
A water supply tank for supplying water to the steam generator, and a heating pipe for guiding the steam generated by the steam generator into the heating chamber and a heater for heating the heating pipe. It is intended to provide a heating and cooking device in which steam supplied from a steam generator is heated by the heating heater and discharged into the heating chamber while passing through the heating pipe.

According to this structure, one heating heater can perform the dual roles of the conventional steam superheater and far infrared heater, and a heating and cooking device having a simple structure and low cost can be provided.

Moreover, in the present invention, the steam from the steam generator can be guided to an appropriate place in the heating chamber by the heating pipe, and the steam can be effectively discharged into the heating chamber.

Further, according to the present invention, a heating chamber is formed in the main body of the cooking device, a steam generator is provided outside the heating chamber in the main body of the cooking device, and a water supply tank for supplying water to the steam generator. A heating pipe provided with a heating heater is provided in the heating chamber, and a switching valve is provided at one end of the heating pipe. The switching valve is a first valve that closes one end of the heating pipe. The configuration is such that a second state in which one end of the heating pipe is connected to the steam generator and a third state in which one end of the heating pipe is in communication with the outside air are set, and the switching valve is in the first state. A heater heating state in which a heater heats an object to be heated accommodated in the heating chamber, and the switching valve is set to a second state to heat steam from the steam generator by the heating heater while heating the steam through the heating pipe. Discharge into chamber and heating chamber Of heating the object to be heated and heating the outside air with the switching heater to the third state while heating the outside air through the heating pipe to the heating chamber to heat the object to be heated in the heating chamber. It is intended to provide a heating and cooking device capable of taking a state and a state.

According to this structure, one heating heater can perform the two functions of the conventional steam superheater and far infrared heater, and a simple structure and low cost cooking device can be provided. Moreover, in the present invention, the steam from the steam generator can be guided to an appropriate place in the heating chamber by the heating pipe, and the above can be effectively discharged into the heating chamber.

Further, according to the present invention, by appropriately switching the switching valve to the first, second and third states, the heater heating state in which the object to be heated is heated by the heater and the steam from the steam generator are controlled. While heating with a heating heater, discharge through the heating tube into the heating chamber to heat the object to be heated in the heating chamber, and while heating the outside air with the heater, discharge through the heating tube into the heating chamber to discharge the object within the heating chamber. Since the air heating state for heating is taken, it is possible to easily set the heating mode according to the type of the object to be heated.

Further, according to the present invention, since a heating and cooking apparatus which can be used as superheated steam having a steam temperature of 100 ° C. or higher when the heating mode is the steam heating state, high temperature heating becomes possible. A heating cooking device capable of executing excellent cooking can be provided.

Further, the present invention provides a heating and cooking apparatus in which a temperature detector is provided in the heating chamber and the steam heating state and the air heating state are switched depending on the temperature detected by the temperature detector. .

According to this structure, the steam heating state and the air heating state can be switched depending on the temperature detected by the temperature detector. Therefore, when the object to be heated is frozen food or cooking suitable for grill heating. It can be a device.

The present invention also provides a heating and cooking apparatus in which a humidity detector is provided in the heating chamber and the steam heating state and the air heating state are switched depending on the humidity detected by the humidity detector. is there.

According to this structure, the steam heating state and the air heating state can be switched depending on the humidity detected by the humidity detector. Therefore, when the object to be heated is frozen food or cooking suitable for grill heating. It can be a device.

Further, in the present invention, a temperature detector and a humidity detector are provided in the heating chamber, and the steam heating state and the air heating state are switched depending on the temperature and the humidity detected by the temperature detector and the humidity detector. The heating and cooking device is provided.

According to this structure, it is possible to switch between the steam heating state and the air heating state depending on the temperature detected by the temperature detector and the humidity detected by the humidity detector, so that the object to be heated is a frozen food. A heating and cooking device suitable for heating a grill or a grill can be provided.

Further, according to the present invention, a heating chamber is formed in the main body of the cooking device and a steam generator, a water supply tank, and water in the water supply tank are generated outside the heating chamber in the main body of the cooking device. And a heating pipe provided with a heater in the heating chamber, and a switching valve is provided at one end of the heating pipe. A first state in which one end is closed, a second state in which one end of the heating tube is connected to the steam generator, and a third state in which one end of the heating tube is in communication with the outside air
And a heating fan in which a circulation fan is provided in the heating chamber and the switching valve is set to the first state to heat an object to be heated housed in the heating chamber by the heater. A steam heating state in which the switching valve is set to the second state and the steam from the steam generator is heated by the heating heater and discharged to the heating chamber through the heating pipe to heat the object to be heated in the heating chamber, and the switching valve. And a third state in which the outside air is heated by the heating heater while being discharged into the heating chamber through the heating tube to heat an object to be heated in the heating chamber to provide an air heating state. To do.

According to this structure, one heating heater can perform the dual roles of the conventional steam superheater and far-infrared heater, and the heating cooking device having a simple structure and low cost can be provided. Moreover, in the present invention, the steam from the steam generator can be guided to an appropriate place in the heating chamber by the heating pipe, and the steam can be effectively discharged into the heating chamber.

Further, in this configuration, the switching valve is appropriately switched to the first, second, and third states, so that the heater heating state in which the object to be heated is heated by the heating heater and the steam from the steam generator are controlled. While heating with a heating heater, it is discharged into the heating chamber through the heating tube and heats the object to be heated in the heating chamber, and the outside air is heated by the heating heater and discharged into the heating chamber through the heating tube, Since the state of heating the object to be heated is the air heating state, it is possible to easily set the heating mode according to the type of the object to be heated.

Further, in this configuration, since the water in the water supply tank is supplied to the steam generator by the water supply pump, stable steam can be supplied to the heating chamber during the heating time, and the object to be heated can be heated deliciously. You can

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a front cross-sectional view of a heating and cooking apparatus according to a first embodiment of the present invention. In this figure, reference numeral 1 is a cooking apparatus main body including a housing having a heating chamber 2 inside. The heating chamber 2 can be opened and closed by an opening / closing door (not shown).

Reference numeral 3 denotes a heated object placing table which is detachably installed on a bottom surface of the heating chamber 2 on an indicator bar 2a provided on an inner surface of a side wall of the heating chamber 2. In the present embodiment, the object placing table 3 has a dish shape. It is composed of the formed net body.

Reference numeral 4 denotes a circulation fan provided at the center of the back wall of the heating chamber 2, which is rotatably driven by a drive motor (not shown).

Reference numeral 5 denotes an equipment chamber formed between the outer surface of one side wall of the heating chamber 2 and the inner surface of one side wall of the cooking apparatus body 1. Inside the equipment room 5, a water supply tank 6 is provided as shown in the figure.
And a water supply pump 8 for guiding the water in the water supply tank 6 to the steam generator 7.

The steam generator 7 is composed of a water container 9 for receiving water supplied from a water supply pump 8 and a steam generating heater 10 for heating the water in the water container 9 to generate steam.

Reference numeral 11 denotes a heating tube composed of a glass tube and the like arranged on the left and right along the ceiling wall surface in the upper part of the heating chamber 2. The heating tube 11 is provided with a downward jet outlet 11a at one end and the other end at the other end. Equipment room 5 through one side wall of heating room 2
And a switching valve 12 is provided at the tip thereof.

The switching valve 12 has a first state in which the heating pipe 11 is completely closed and neither steam nor air is supplied to the heating pipe 11, and a second state in which steam from the steam generator 7 is supplied to the heating pipe 11. And the third state of supplying external air to the heating pipe 11
It is possible to selectively switch to and.

Reference numeral 13 denotes a first heater which is wound around the outer peripheral surface of the heating pipe 11, and which heats the air in the heating chamber 2 or the air or steam passing through the heating pipe 11. Is.

Reference numeral 14 is a magnetron for high frequency heating installed in the equipment room 5, and an electromagnetic wave generated from the magnetron is guided into the heating room 2 through the waveguide 15.

Reference numerals 16 and 17 are a temperature detector and a humidity detector provided on the inner surface of the side wall of the heating chamber 2, and 18 is a pressure regulator.

Reference numeral 19 denotes a control circuit provided in the equipment room 5, which is a drive motor for the circulation fan 4, a water supply pump 8, a steam generating heater 10, a switching valve 12, and a first heating heater 1.
3, magnetron 14, temperature detector 16, humidity detector 1
7 and the pressure regulator 18 are controlled respectively. Reference numeral 20 is a second heater provided at the bottom of the heating chamber 2.

The heating and cooking apparatus of the present invention is constructed as described above, and its operation will be sequentially described according to the type of food placed on the object placing table 3.

(1) Toaster heating The food to be cooked is simply bread that has been placed at room temperature, and when this bread is subjected to normal toaster heating,
By placing the bread on the heated object placing table 3 and selecting "normal toaster heating" by the menu selecting means of the operation panel (not shown) and operating the heating button or the heating key, for example, the flowchart of FIG. In steps S1 to S8 shown in FIG. 7, roasting and heating of bread is performed.

That is, when "normal toaster heating" is selected by the menu selection means of the operation panel (step S1),
The control circuit 19 recognizes the selected menu (step S
2) Then, the normal toaster heating mode is set (step S3).

After this mode setting is performed, the control circuit 1
9 is in a state waiting for the operation of the heating button or the heating key (not shown) (step S4), and when the heating button is operated in this standby state, the control circuit 19
The switching valve 12 is switched to the first state so that the heating pipe 11 is completely closed and external air or steam is prevented from flowing into the heating pipe 11 (step S5), and each heater is set to the first state. Power is supplied only to the heater 13.

As a result, only the first heater 13 operates to roast and heat the bread (step S).
6).

During this roasting and heating, the degree of roasting of the bread is judged by detecting the temperature in the heating chamber 2 with the temperature detector 16 (step S7). This roasting condition may be judged by a preset roasting time in which counting is started immediately after the heating button is turned on.

When the bread is appropriately roasted as a result of the roasting heating by this heater, the power supply to the heating heater 13 is stopped and the roasting heating is finished (step S8).

(2) Toaster of frozen bread When the heated bread is frozen and stored, the frozen bread is placed on the heated object placing table 3 and the menu selection means (not shown) on the operation panel is used. By selecting "Toaster heating of frozen bread" and operating the heating button or the heating key, for example, roasting and heating of frozen bread is executed in steps K1 to K17 shown in the flowchart of FIG.

That is, "toaster heating of frozen bread" is selected by the menu selecting means on the operation panel (step K1).
Then, the control circuit 19 recognizes the selected menu (step K2) and sets the cooking mode to the frozen bread toaster heating mode (step K3).

After this mode setting is performed, the control circuit 1
9 is in a state of waiting for the operation of the heating button or the heating key (not shown) (step K4), and when the heating button is operated, it operates to judge the presence or absence of water in the water supply tank 6 (step K5).

When it is confirmed that there is water in the water supply tank 6, the control circuit 19 drives the water supply pump 8 to supply the water in the water supply tank 6 to the steam generator 7 and to generate steam in the steam generator 7. The steam heater 7 is energized by energizing the generation heater 10.
The water inside is heated to generate steam (step K7).

On the other hand, immediately after the steam generating heater 10 is energized, the switching valve 12 is switched to the second state and the drive motors for the first heating heater 13 and the circulation fan 4 are energized (steps K8, K9, K10). ).

As described above, the switching valve 12 is set to the second state and the drive motor of the circulation fan 4 is driven, whereby the circulation fan 4 is rotated and the steam generated in the steam generator 7 is changed. , Heating tube 11 and jet 11
It is discharged into the heating chamber 2 from a.

At this time, the steam discharged into the heating chamber 2 is secondarily heated by the first heater 13 to become superheated steam when passing through the heating pipe 11 in the preceding stage. The temperature of the entire chamber 2 is raised to thaw the frozen bread on the object placing table 3.

During this thawing operation, the temperature detector 16 and the humidity detector 17 detect the degree of thawing of the frozen bread,
When the detection result becomes a predetermined temperature and humidity which are set in advance, the control circuit 19 judges that the operation has been completed (step K1).
Then, the switching valve 12 is switched to the third state and the second heater 20 is turned on (step K1).
2, K13).

On the other hand, the steam generating heater 10 is turned off and the water supply pump 8 is turned off (step K1).
4, K15).

By this switching operation, the air from the outside is guided to the heating pipe 11 through the switching valve 12 by the suction operation of the circulation fan 4 which is continuously driven, and the air is first heated while passing through this heating pipe. After being heated by the heater 13 to a high temperature, it is discharged into the heating chamber 2 and sprayed on the surface of the thawed bread. Therefore, the surface of bread is the first
It is heated by the heater heater 13 and the hot air discharged from the heating pipe 11. On the other hand, heat is applied from the second heater 20 to the back surface of the loaf bread so that the bread is browned.

Then, during this heating, the degree of roasting of the bread is judged by detecting the temperature in the heating chamber 2 by the temperature detector 16 (step K16). The degree of roasting may be determined by a preset heating time for starting counting from the timing when the switching valve 12 shown in step K12 is switched to the third state.

When the bread is appropriately roasted as a result of roasting and heating by this heater, the control circuit 19 supplies electric power to the drive motors of the first heating heater 13, the second heating heater 20 and the circulation fan 4. And all the operations are completed by switching the switching valve 12 to the first state (step K17). As a result of this heating and roasting, the inside becomes fluffy and the outside becomes crispy.

(3) Grill Heating Next, the grill heating when the object to be heated is frozen gratin will be described. After placing the gratin on the object-to-be-heated placing table 3, selecting "grill heating" by the menu selection means of the operation panel (not shown) and operating the heating button or the heating key, for example, in FIG. Grill heating for gratin is executed in steps L1 to L18 shown in the flowchart.

That is, when "heating grill of gratin" is selected by the menu selecting means of the operation panel (step L1), the control circuit 19 recognizes the selected menu (step L2) and sets the grill heating mode of gratin. (Step L3).

After this mode setting is performed, the control circuit 1
9 is in a state (step L4) of waiting for the operation of the heating button or the heating key (not shown).

Then, in this standby state, when the heating button is operated, the heating button is recognized to operate, and first, the temperature detector 16 is operated to confirm whether or not the gratin has been frozen. The surface temperature of the gratin is detected (step L5).

As a result of this temperature detection, when it is determined that the gratin is frozen more than the surface temperature of the gratin, the process proceeds to step L6, and the control circuit 19 sets the switching valve 12 in the first state to the third state. At the same time as switching to the state, energization to the drive motor of the circulation fan 4 and the first heater 13 is started to operate each (steps L7, L
8).

If it is determined in step L5 that the gratin is not frozen, the control circuit 19 directly proceeds to step L10 without executing the operations of steps L6 to L9 described below.

As described above, as a result of the determination that the gratin is frozen, air is introduced into the heating pipe 11 through the switching valve 12 by the suction operation of the circulation fan 4, and while passing through the heating pipe 11. The air is heated by the first heater 13 to become high-temperature hot air, which is then discharged into the heating chamber 2 and blown onto the surface of the gratin.

By this air heating, the temperature of the heating chamber 2 rises, but the temperature of the heating chamber 2 is the reversal point temperature.
When the temperature becomes close to 0 °, the temperature detector 16 detects this temperature (step L9), and the control circuit 19 switches the switching valve 12 to the second state (step L10), and also supplies the water supply pump 8 and the heater for generating steam. 10 is energized to operate each of them (steps L11 and L12).

The temperature near 170 ° C. is called a reversal point temperature in superheated steam cooking, and the heat transfer coefficient of condensation heat, which is the effect of superheated steam, causes the heat transfer coefficient to become larger than that of mere air. Moreover, the surface of the object to be heated is less likely to burn due to the condensed water, the temperature of the heating chamber can be raised, and the cooking time can be shortened.

By the operation of the water supply pump 8, the water in the water supply tank 6 is supplied to the steam generator 7 and heated by the steam generating heater 10 to become steam, and the heating chamber 2 passes through the switching valve 12 and the heating pipe 11. Is discharged and supplied. When this steam passes through the heating pipe 11, it is heated by the first heater 11 to be in an overheated state and discharged and supplied to the heating chamber 2.

In this way, the steam is supplied into the heating chamber 2, and the supply of the steam advances, and when the humidity detector 17 detects that the humidity inside the heating chamber 2 is close to 100% (step L13), The control circuit 19 switches the switching valve 12 to the third state and turns off the power supply to the steam generating heater 10 and the water supply pump 8 (steps L14 and L1).
5, L16).

As a result, the heating state becomes the air heating state again, so that the switching valve 12 is operated by the suction operation of the circulation fan 4.
The air sucked from the outside through the heating pipe 11 is guided to the heating pipe 11, and is heated by the first heater 13 while passing through the heating pipe 11 to become high-temperature hot air, which is discharged into the heating chamber 2 and is discharged onto the surface of the gratin. To spray. Therefore, the surface of the gratin is heated by the heater heating by the first heater 13 and the hot air discharged from the heating pipe 11.

During this heating, the degree of baking of the gratin is judged by detecting the temperature in the heating chamber 2 with the temperature detector 16 (step L17). The degree of baking of this gratin may be judged by a preset heating time for starting counting from the timing when the switching valve 12 shown in step L13 is set to the third state.

As a result of this heating, when the heating is appropriately performed, the control circuit 19 stops the power supply to the first heating heater 13 and the drive motor of the circulation fan 4 and sets the switching valve 12 to the first state. All the operations are ended by switching to (step L18).

(4) Convection heating Next, the mode used when the object to be heated is a large food such as roast chicken and the whole is uniformly baked, that is, convection heating will be described.

By placing the roast chicken on the object placing table 3 and selecting "convection heating" by the menu selecting means of the operation panel (not shown) and operating the heating button or the heating key, for example, The convection heating for the roast chicken is executed in steps M1 to M20 shown in the flowchart of FIG.

That is, when "convection heating of roast chicken" is selected by the menu selection means of the operation panel (step M1), the control circuit 19 recognizes the selected menu and sets the convection heating mode of roast chicken ( Steps M2, M3).

After this mode setting is performed, the control circuit 1
9 is in a state (M4) waiting for the operation of the heating button or the heating key (not shown), and when the heating button is operated, it operates to switch the switching valve 12 to the third state and the circulation fan 4 is operated. Drive motor and first heater 1
3 is energized to operate (steps M5, M6, M7).

As a result, since the heating state becomes the air heating state, the external air sucked by the suction operation of the circulation fan 4 is guided to the heating pipe 11 through the switching valve 12, and the heating pipe 11 is heated. While passing, it is heated by the first heater 13 to become high-temperature hot air, which is then discharged into the heating chamber 2 and blown onto the surface of the roast chicken.

The temperature of the heating chamber 2 rises due to this air heating, but the temperature of the heating chamber 2 is the reversal point temperature 170.
When the temperature becomes close to ℃, the temperature detector 16 detects this temperature (step M8), and the control circuit 19 once determines the circulation fan 4
After stopping the drive of the drive motor of step S9 (step M9), the switching valve 12 is set to the second state and the water supply pump 8 is set.
And the heater 10 for steam generation is energized to operate them (steps M10, M11, M12).

By the operation of the water supply pump 8, the water in the water supply tank 6 is supplied to the steam generator 7 and heated by the steam generating heater 10 to become steam, and the heating chamber is passed through the switching valve 12 and the heating pipe 11. 2 is discharged and supplied. When passing through the heating pipe 11, this vapor is heated by the first heater 13 to become superheated vapor and is discharged and supplied to the heating chamber 2. Thus, when the steam becomes superheated steam, the control circuit 19 drives the drive motor of the steam circulation fan 4 again to stir the steam in the heating chamber 2 (step M13).

In this way, the steam is filled in the entire heating chamber 2, and the supply of this steam proceeds to advance the humidity detector 1
When 7 detects that the humidity in the heating chamber 2 has become close to 100% (step M14), the control circuit 19 switches the switching valve 12 to the third state (step M15), and at the same time, the heater 10 for steam generation and The power supply to the water supply pump 8 is turned off (steps M16 and M17).

As a result, the heating state becomes the heating state of air again, so that the switching valve 12 is operated by the suction operation of the circulation fan 4.
The air sucked through is introduced into the heating pipe 11, and while passing through the heating pipe 11, it is heated by the first heater 13 to become high-temperature hot air, which is discharged into the heating chamber 2 to the surface of the roast chicken. To be sprayed.

At this time, by closing the pressure regulator 18 (step M18), the humidity drop in the heating chamber 2 can be suppressed, and the roast chicken is evenly distributed by the circulation of the heated air by the drive of the circulation fan 4. The inside can be heated uniformly.

Then, during this heating, the degree of roast chicken baking is judged by detecting the temperature in the heating chamber 2 by the temperature detector 16 (step M19).

Step M to prepare the roasted chicken
The switching valve 12 shown by 15 may be judged by the preset heating time which starts counting from the timing when the switching valve 12 is set to the third state.

As a result of this heating, when the convection heating is appropriately performed, the control circuit 19 causes the first heating heater 13 to operate.
Also, all the operations are completed by stopping the power supply to the drive motor of the circulation fan 4 and switching the switching valve 12 to the first state (step M20).

[0081]

As described above, according to the present invention, the two roles of the conventional steam heating heater and far infrared heater can be achieved.
Since it can be executed by two heating heaters, it is possible to provide an inexpensive cooking device with a simple structure. Moreover, the steam from the steam generator can be guided to the proper place in the heating chamber by the heating pipe, the steam can be effectively discharged into the heating chamber, and the heating operation suitable for various heating modes can be realized.

[Brief description of drawings]

FIG. 1 is a front schematic view showing an embodiment of a heating and cooking device according to the present invention in a door open state.

FIG. 2 is an explanatory diagram illustrating an operation of normal toaster heating in the heating and cooking device.

FIG. 3 is an explanatory diagram illustrating an operation of heating a toast of frozen bread in the heating and cooking device.

FIG. 4 is an explanatory diagram illustrating an operation in a grill heating mode in the heating and cooking device.

FIG. 5 is an explanatory diagram illustrating an operation in a convection heating mode in the heating and cooking device.

FIG. 6 is a schematic front view of a conventional steam superheated cooking device in an open state.

[Explanation of symbols]

1 Heating cooker body plate 2 heating chambers 3 Heated object mounting table 4 circulation fan 6 water tank 7 Steam generator 8 water supply pump 10 Steam generation heater 12 switching valve 13 First heater 16 Temperature detector 17 Humidity detector 20 Second heater

Claims (7)

[Claims] 1. A heating chamber is formed in the main body of the cooking device, a steam generator is provided outside the heating chamber in the main body of the cooking device, and a water supply tank for supplying water to the steam generator is provided. A heating pipe for guiding the steam generated by the steam generator into the heating chamber is provided in the heating chamber, and a heating heater is provided for the heating pipe. While the steam supplied from the steam generator passes through the heating pipe. A heating and cooking device characterized by being heated by the heater and being discharged into the heating chamber. 2. A heating chamber is formed in the main body of the cooking device, a steam generator is provided outside the heating chamber in the main body of the cooking device, and a water supply tank for supplying water to the steam generator is provided. A heating pipe having a heater is provided in the heating chamber, and a switching valve is provided at one end of the heating pipe. The switching valve is in a first state in which the one end of the heating pipe is closed. Has a second state in which one end of the heating pipe is connected to the steam generator and a third state in which one end of the heating pipe communicates with the outside air, and the switching valve is set to the first state by the heating heater. A heater heating state for heating an object to be heated housed in the heating chamber, and a state in which the switching valve is set to the second state, the steam from the steam generator is heated by the heating heater and discharged to the heating chamber through the heating pipe. Add the object to be heated in the heating chamber. To take a steam heating state of heating and an air heating state of discharging the outside air through the heating pipe into the heating chamber while heating the outside air with the switching valve in the third state to heat the object to be heated in the heating chamber. A cooking device characterized by being able to do. 3. The cooking apparatus according to claim 2, wherein the steam in the steam heating state is superheated steam having a temperature of 100 ° C. or higher. 4. The heating chamber is provided with a temperature detector, and the steam heating state and the air heating state are switched according to the temperature detected by the temperature detector. Cooked equipment. 5. The heating chamber is provided with a humidity detector, and the steam heating state and the air heating state are switched according to the humidity detected by the humidity detector. Cooked equipment. 6. A temperature detector and a humidity detector are provided in the heating chamber, and the steam heating state and the air heating state are switched depending on the temperature and the humidity detected by the temperature detector and the humidity detector. The heating and cooking device according to claim 2. 7. A heating chamber is formed in the main body of the cooking device, and a steam generator, a water supply tank, and water in the water supply tank are supplied to the steam generator outside the heating chamber in the main body of the heating cooking device. A heating pipe having a water supply pump and a heater provided in the heating chamber is provided in the heating chamber, and a switching valve is provided at one end of the heating pipe, and the switching valve closes one end of the heating pipe. The first state, the second state in which one end of the heating tube is connected to the steam generator, and the third state in which one end of the heating tube is in communication with the outside air are adopted, and the heating chamber is circulated. A heater heating state in which a fan is provided and the switching valve is set to the first state to heat an object to be heated housed in the heating chamber by the heating heater;
A steam heating state in which the switching valve is set to the second state and the steam from the steam generator is heated by the heating heater and discharged into the heating chamber through the heating pipe to heat an object to be heated in the heating chamber, and the switching valve. Is set as a third state, and the outside air is heated by the heating heater and discharged into the heating chamber through the heating tube so that an object to be heated in the heating chamber can be heated to an air heating state. Cooking equipment.