WO2018042691A1

WO2018042691A1 - Heating cooker

Info

Publication number: WO2018042691A1
Application number: PCT/JP2017/000394
Authority: WO
Inventors: 小川　将志
Original assignee: シャープ株式会社
Priority date: 2016-08-29
Filing date: 2017-01-10
Publication date: 2018-03-08
Also published as: JP2019187459A

Abstract

A heating cooker comprising: a first vessel (50) provided with a plurality of holes (50a) through which steam passes to at least one of a side surface and a bottom surface; a second vessel (30) which stores the first vessel (50) therein; an immersion state switching mechanism for switching to one of a first state wherein grain accommodated in the first vessel (50) is immersed in water in the second vessel (30) and a second state wherein the grain accommodated in the first vessel (50) is not immersed in water; and a steam generating unit (20) for generating steam to heat the grain in the second state wherein the grain accommodated in the first vessel (50) is not immersed in water and supplying the steam to the interior of the second vessel (30).

Description

Cooker

The present invention relates to a cooking device, and more particularly to a cooking device that cooks rice and other grains.

Conventionally, as a heating cooker, there is a rice cooker that heats rice in a pan from the upper surface by supplying superheated steam exceeding 100 ° C. into the pan in a steaming step during rice cooking (for example, (Patent Document 1). )reference).

Patent 4029892

By the way, in the heating cooker, since superheated steam is applied from the upper surface of the pan in the steaming process, it is difficult for the superheated steam to directly hit only the rice in the upper part and to cook the rice in the pan evenly.

Therefore, an object of the present invention is to provide a cooking device capable of realizing uniform cooking of grains such as rice.

In order to solve the above problems, the heating cooker of the present invention is:
A first container provided with a plurality of holes for passing water vapor on at least one of a side surface and a bottom surface;
A second container for accommodating the first container inside;
Either the first state in which the grain stored in the first container is immersed in water in the second container or the second state in which the grain stored in the first container is not immersed in water. An immersion state switching mechanism for switching so that
In the second state where the grain stored in the first container is not immersed in water, a steam generating unit that generates steam for heating the grain and supplies the steam into the second container is provided. It is characterized by that.
Here, the water vapor includes superheated water vapor exceeding 100 ° C.

As is clear from the above, according to the present invention, the first container having a plurality of holes through which water vapor passes is provided in at least one of the side surface or the bottom surface, and the grain contained in the first container is in the water. By heating the cereal contained in the first container with water vapor without being immersed, it is possible to realize uniform cooking of cereals such as rice.

FIG. 1 is a schematic cross-sectional view showing the configuration of a rice cooker as an example of a heating cooker according to the first embodiment of the present invention. FIG. 2 is a control block diagram of the rice cooker. FIG. 3 is a schematic cross-sectional view of the main part in the dipping process and start-up process of the rice cooker. FIG. 4 is a schematic cross-sectional view of the main part in the baking and steaming process of the rice cooker. FIG. 5 is a view for explaining a moving mechanism of the first container of the main part of the rice cooker. FIG. 6: is a cross-sectional schematic diagram of the principal part in the immersion process and start-up process of a rice cooker as an example of the heating cooker of 2nd Embodiment of this invention. FIG. 7: is a cross-sectional schematic diagram of the principal part in the process of raising the 1st container of the said rice cooker. FIG. 8: is a cross-sectional schematic diagram of the principal part in the immersion process and the starting process after the process of raising the 1st container of the said rice cooker. FIG. 9 is a schematic cross-sectional view of the main part in the baking and steaming process of the rice cooker. FIG. 10: is a figure explaining the moving mechanism of the 2nd container of the principal part of a rice cooker as an example of the heating cooker of 3rd Embodiment of this invention. FIG. 11: is a cross-sectional schematic diagram of the principal part in the immersion process and start-up process of a rice cooker as an example of the heating cooker of 4th Embodiment of this invention. FIG. 12 is a schematic cross-sectional view of the main part in the baking and steaming process of the rice cooker.

Hereinafter, the cooking device of the present invention will be described in detail with reference to the illustrated embodiments.

[First Embodiment]
FIG. 1: has shown the structure of the rice cooker as an example of the heating cooker of 1st Embodiment of this invention.

The rice cooker according to the first embodiment includes a main body casing 1 and an upper lid 2 that opens and closes an upper opening of the main body casing 1 as shown in FIG. In the main body casing 1, a first tank 10 for storing water, a first pump P 1, a water vapor generating unit 20, a second container 30, a second tank 40 for storing water, a first container 50, Two pumps P2 are arranged. The first tank 10 and the second tank 40 may be one water storage tank.

The first container 50 is provided with a plurality of holes 50a through which superheated steam passes on the side surface and bottom surface, and has an opening 50b on the upper side. The plurality of holes 50a of the first container 50 have a size of about 1/3 of the minimum diameter of rice grains. Further, the first container 50 has a space between the upper side of the first container 50 and the lower surface of the upper lid 2, and the space between the side surface of the first container 50 and the side wall surface inside the second container 30. And is accommodated in the second container 30 with contact with or spaced from the bottom surface of the second container 30.

Note that the plurality of holes 50 a of the first container 50 may be provided on one of the side surface or the bottom surface of the first container 50.

A heater 31 for heating water supplied from the second tank 40 into the second container 30 is provided below the bottom of the second container 30. The heater 31 may be provided between the second tank 40 and the second container 30 so that warm water is supplied to the second container 30. Further, a drainage unit 90 is connected to the lower part of the second container 30.

Further, one end of the pipe L1 is connected to the first tank 10, and the other end of the pipe L1 is connected to the water supply port 20a of the water vapor generating unit 20. The first pump P1 is disposed in the pipe L1, and the water in the first tank 10 is supplied to the steam generation unit 20 by driving the first pump P1.

A water supply port 11 is provided in the upper part of the first tank 10, and a drainage unit 80 is connected to the lower part of the first tank 10.

Further, one end of the steam supply pipe L2 is connected to the steam injection port 20b of the steam generation unit 20, and the other end of the steam supply pipe L2 is connected to the lower side of the second container 30. The water vapor generating unit 20 heats the water supplied from the first tank 10 to generate water vapor at 100 ° C. (or approximately 100 ° C.) and a water

vapor generating heater

21, and 100 ° C. (or approximately 100 ° C.). And a heater 22 for superheated steam that generates superheated steam exceeding 100 ° C. by further heating the steam. Here, the superheated steam means steam heated to a superheated state exceeding 100 ° C. The water vapor may be supplied not only from the lower side of the second container 30 but also from the middle or upper side of the second container 30, or at least two points of the lower side, the middle, and the upper side of the second container 30. You may make it supply from.

Further, one end of the pipe L3 is connected to the second tank 40, and the other end of the pipe L3 is connected to the side wall of the second container 30. A second pump P2 is disposed in the pipe L3.

The water in the second tank 40 is supplied into the first container 50 through the pipe L3 by driving the second pump P2. The second tank 40, the pipe L3, and the second pump P2 constitute a water supply unit.

Further, a water supply port 41 is provided on the side surface of the second tank 40.

FIG. 2 shows a control block diagram of the rice cooker. As shown in FIG. 2, the rice cooker according to the first embodiment includes a control device 100 including a microcomputer and an input / output circuit. The control device 100 includes an operation panel 3, a steam generating heater 21, a superheated steam heater 22, a first temperature sensor 23 that detects the temperature of the superheated steam generated by the steam generating unit 20, and a first pump. P1, the heater 31, the second pump P2, the second temperature sensor 43 that detects the temperature of the hot water in the second container 30, and the

drainage units

80 and 90 are connected.

Based on signals from the operation panel 3, the first temperature sensor 23, and the second temperature sensor 43, the control device 100 performs the steam generation heater 21, the superheated steam heater 22, the heater 31, and the first and second pumps. It has the heating control part 100a which controls P1, P2, the

drainage parts

80, 90, etc., and the timer 100b used for the control at the time of rice cooking, etc.

The control device 100 can set the temperature of the superheated steam generated by the steam generating unit 20 based on the temperature detected by the first temperature sensor 23. The control device 100 can set the temperature of the hot water in the second container 30 based on the temperature of the hot water in the second container 30 detected by the second temperature sensor 43.

<Immersion process>, <Start-up process> and <Bake-up and steaming process> in this rice cooker will be described with reference to FIGS.

<Immersion process>
First, as shown in FIG. 3, the first container 50 in which the raw rice is placed is set to a lower position in the second container 30. At this time, the height of the bottom surface of the first container 50 with respect to the bottom of the second container 30 is H1. Here, the control device 100 can move the first container 50 in the vertical direction by an immersion state switching mechanism (110, 111, 112) described later.

Next, the control device 100 drives the second pump P2 to supply the water in the second tank 40 into the second container 30 through the pipe L3. At this time, water is supplied until all the raw rice in the first container 50 is immersed in water. For example, in this embodiment, in the case of 3 rice (540 ml), 720 ml of water is supplied. Thereby, it will be in the 1st state where the rice stored in the 1st container 50 was immersed in the water in the 2nd container 30.

Then, the control device 100 controls the heater 31 on and off for 15 minutes so that the temperature of the hot water in the second container 30 detected by the second temperature sensor 43 becomes 70 ° C.

<Start-up process>
Next to the <immersion step> for 15 minutes, the control device 100 sets the heater 31 so that the temperature of the hot water in the second container 30 detected by the second temperature sensor 43 is 100 ° C. for 15 minutes. ON / OFF control.

At the time when this <start-up step> is completed, water is absorbed by the rice, and the amount of water in the second container 30 is reduced to a water level as shown in FIG.

In addition, you may make it drain the water in the 2nd container 30 by the drainage part 90 at the time of completion | finish of this <start-up process>.

<Baking and steaming process>
After the 15 minute <start-up step>, the first container 50 is placed in the upper position in the second container 30 as shown in FIG. At this time, the height of the bottom surface of the first container 50 relative to the bottom of the second container 30 is set to H2 (> H1). Here, the control device 100 moves the first container 50 upward by the moving mechanism shown in FIG. Thereby, it will be in the 2nd state where the rice stored in the 1st container 50 is not immersed in water.

And the control apparatus 100 drives the 1st pump P1, and the water vapor | steam generation heater 21 of the water vapor | steam production | generation part 20 is made for 15 minutes so that the temperature of the superheated water vapor | steam detected by the 1st temperature sensor 23 may be 240 degreeC. The heater 22 for superheated steam is turned on and off. Thereby, 240 degreeC superheated steam is supplied in the 2nd container 30 from the steam production | generation part 20, and the rice in the 1st container 50 is heated.

Note that the temperature of the superheated steam may be appropriately set to an optimum temperature (for example, a temperature in the range of 300 ° C. to 120 ° C.) depending on the type of rice.

In this way, by supplying water to the rice in the first container 50 and increasing the moisture content of the rice to an appropriate value, by supplying superheated steam to the rice in the first container 50, While increasing the moisture content of rice, starch can be gelatinized to achieve a rich and sticky cooking.

FIG. 5 shows a diagram for explaining the moving mechanism of the first container 50 of the main part of the rice cooker. FIG. 5A shows a state where the first container 50 is in a lower position (height H1 of the bottom surface of the first container 50 with respect to the bottom of the second container 30), and FIG. The state when the container 50 exists in the upper side position (height H2 of the bottom face of the 1st container 50 with respect to the bottom part of the 2nd container 30) is shown.

As shown in FIGS. 5 (a) and 5 (b), a plurality of engaging portions 112 (only two facing each other are shown in the upper outer side of the first container 50 in FIGS. ). Here, it is preferable to provide at least three or more engaging portions 112 at intervals on the outer peripheral side of the opening 50b on the upper side of the first container 50 and in the circumferential direction.

On the other hand, a plurality of hooks 111 are provided at a position facing the inner peripheral side of the second container 30 and the engaging portion 112 of the first container 50 so as to be movable in the vertical direction. Each of the plurality of hooks 111 engages with the engaging portion 112 of the first container 50. The plurality of hooks 111 are moved in the vertical direction by the plurality of driving units 110 provided on the outer peripheral side of the second container 30.

Thus, the first container 50 in the second container 30 is supported by the second container 30 via the plurality of hooks 111.

The plurality of driving units 110, the plurality of hooks 111, and the engaging unit 112 constitute a first container moving mechanism as an example of an immersion state switching mechanism.

According to the rice cooker having the above configuration, rice is put in the first container 50, and the rice stored in the first container 50 is put into the water in the second container 30 by the immersion state switching mechanism (110, 111, 112). To the first state. And if the moisture content of rice rises by water absorption, it will be in the 2nd state where the rice stored in the 1st container 50 is not immersed in water by the immersion state change mechanism (110, 111, 112). In the second state where the rice stored in the first container 50 is not immersed in water, the superheated steam generated by the steam generation unit 20 is supplied into the second container 30, so that the superheated steam is converted into the first container. Through the plurality of holes 50a and the openings 50b, the first container 50 is spread all over and the rice contained in the first container 50 is heated. Thereby, uniform heating cooking of rice, such as rice, is realizable.

Moreover, the 1st container 50 is moved upward so that the rice accommodated in the said 1st container 50 may change from the 1st state immersed in the water in the 2nd container 30 to the 2nd state which is not immersed in water. Since the first container moving mechanism (110, 111, 112) is provided, it is possible to switch to the second state in which the rice stored in the first container 50 is not immersed in water with a simple configuration.

Further, the control device 100 controls the immersion state switching mechanism (110, 111, 112) so that rice stored in the first container 50 is immersed in water in the second container 30 and set in advance. After the period (15 minutes in this embodiment) has elapsed, the rice stored in the first container 50 is brought into a second state where it is not immersed in water. As a result, after the water has been reliably absorbed, the rice stored in the first container 50 is heated by the superheated steam generated by the steam generation unit 20 in a second state where the rice is not immersed in water. can do.

[Second Embodiment]
FIG. 6: has shown the cross-sectional schematic diagram of the principal part in the immersion process and start-up process of a rice cooker as an example of the heating cooker of 2nd Embodiment of this invention. The rice cooker of this 2nd Embodiment is carrying out the structure same as the rice cooker of 1st Embodiment except an immersion process, and uses FIG. 1, FIG.

<Immersion process>
As shown in FIG. 6, the first container 50 in which the raw rice is put is in a lower position in the second container 30. At this time, the height of the bottom surface of the first container 50 relative to the bottom of the second container 30 is set to H11. Here, the control apparatus 100 can move the 1st container 50 to the up-down direction by the immersion state switching mechanism (110,111,112) shown in FIG. 5 similarly to 1st Embodiment.

Next, the control device 100 drives the second pump P2 to supply the water in the second tank 40 into the second container 30 through the pipe L3. At this time, water is supplied until all the raw rice in the first container 50 is immersed in water. For example, in the case of 3 rice (540 ml), 720 ml of water is supplied. Thereby, it will be in the 1st state where the rice stored in the 1st container 50 was immersed in the water in the 2nd container 30.

In this first state, the water in the second container 30 is water-absorbed for 15 minutes in the range of room temperature to 60 ° C. (heating by the heater 31 is not performed).

<Non-immersion process>
Next to the <immersion step> for 15 minutes, as shown in FIG. 7, the first container 50 is positioned above the water surface (height H13) in the second container 30. At this time, the height of the bottom surface of the first container 50 relative to the bottom of the second container 30 is set to H14 (>H13> H11).

Thereby, the rice stored in the first container 50 is in a second state where the rice is not immersed in the water in the second container 30, and this second state is continued for 15 minutes.

This gives a more crisp texture when the rice is cooked.

<Start-up process>
Next to the <non-immersion step> for 15 minutes, as shown in FIG. 8, the first container 50 is returned such that the height of the bottom surface of the first container 50 with respect to the bottom of the second container 30 is H11.

And the control device 100 controls the heater 31 on and off so that the temperature of the hot water in the second container 30 detected by the second temperature sensor 43 is 100 ° C. for 15 minutes.

At the time when this <start-up process> is completed, water is absorbed by the rice, the amount of water in the second container 30 decreases, and the water level is as shown in FIG.

In addition, you may make it drain the water in the 2nd container 30 by the drainage part 90 at this time.

<Baking and steaming process>
After the 15 minutes <start-up step>, the first container 50 is placed in the upper position in the second container 30 as shown in FIG. At this time, the height of the bottom surface of the first container 50 with respect to the bottom of the second container 30 is set to H12 (<H14). Here, the control device 100 moves the first container 50 upward by the moving mechanism shown in FIG. Thereby, it will be in the 2nd state where the rice stored in the 1st container 50 is not immersed in water.

And the control apparatus 100 drives the 1st pump P1, and the water vapor | steam generation heater 21 of the water vapor | steam production | generation part 20 is made for 15 minutes so that the temperature of the superheated water vapor | steam detected by the 1st temperature sensor 23 may be 240 degreeC. The heater 22 for superheated steam is turned on and off. Thereby, 240 degreeC superheated steam is supplied in the 2nd container 30 from the water vapor | steam production | generation part 20, and superheated steam is all over in the 1st container 50 through the some hole 50a and the opening part 50b of the 1st container 50. The rice in the first container 50 is heated.

Thus, by supplying warm water to the rice in the first container 50 and increasing the moisture content of the rice to an appropriate value, by supplying superheated steam to the rice in the first container 50, While increasing the moisture content of rice, starch can be gelatinized to achieve a rich and sticky cooking.

The rice cooker of the second embodiment has the same effect as the rice cooker of the first embodiment.

Moreover, by providing a <non-immersion process> between the <immersion process> and the <launch process>, the cooked rice can have a more crisp texture and can cook delicious rice. .

[Third Embodiment]
FIG. 10: has shown the figure explaining the moving mechanism of the 2nd container of the principal part of a rice cooker as an example of the heating cooker of 3rd Embodiment of this invention. FIG. 10A shows a state when the second container 30 is in a lower position (height H21 of the bottom surface of the first container 50 with respect to the bottom of the second container 30), and FIG. The state when the container 30 exists in the upper side position (height H22 of the bottom face of the 1st container 50 with respect to the bottom part of the 2nd container 30) is shown.

As shown in FIGS. 10 (a) and 10 (b), a plurality of convex portions 211 are formed on the outer side of the upper portion of the second container 30 (only two facing portions are shown in FIGS. 10 (a) and 10 (b)). Is provided. Here, it is preferable to provide at least three or more convex portions 211 at intervals on the outer peripheral side of the second container 30 and in the circumferential direction.

On the other hand, a plurality of driving units 210 are provided at positions facing the convex portions 211 of the second container 30 in the main casing 1 (shown in FIG. 1). Each of the convex portions 211 is moved in the vertical direction by a plurality of driving portions 210.

Although not shown, the first container 50 in the second container 30 is supported by the upper lid 2 (shown in FIG. 1), and is fixed at a predetermined position in the main casing 1.

The second drive unit 210 and the convex portion 211 constitute a second container moving mechanism as an example of an immersion state switching mechanism.

In the rice cooker of the said 3rd Embodiment, it is 2nd so that the rice accommodated in the 1st container 50 may change from the 1st state immersed in the water in the 2nd container 30 to the 2nd state which is not immersed in water. The container 30 can be moved downward by the second container moving mechanism (210, 211). Thereby, it is possible to switch to the second state in which the rice stored in the first container 50 is not immersed in water with a simple configuration.

The rice cooker of the third embodiment has the same effect as the rice cooker of the first embodiment.

[Fourth Embodiment]
FIG. 11: shows the cross-sectional schematic diagram of the principal part in the immersion process and start-up process of a rice cooker as an example of the heating cooker of 4th Embodiment of this invention, FIG. 12 is the principal part in the baking and steaming process of the said rice cooker. The cross-sectional schematic diagram is shown. The rice cooker of this 4th Embodiment is carrying out the structure same as the rice cooker of 1st Embodiment except the point which is not equipped with the 1st container moving mechanism, and uses FIG. 1, FIG.

<Immersion process>, <Start-up process>, and <Bake-up and steaming process> in this rice cooker will be described with reference to FIGS.

<Immersion process>
As shown in FIG. 11, the first container 50 containing raw rice is attached at a predetermined position in the second container 30. For example, a predetermined position is obtained by providing a spacer (not shown) as an example of a member for providing a gap between the bottom surface of the first container 50 and the bottom surface of the second container 30. At this time, the height of the bottom surface of the first container 50 with respect to the bottom of the second container 30 is H31.

At this time, the height of the water surface with respect to the bottom of the second container 30 is set to H32 (> H31).

<Baking and steaming process>
Next to the <start-up process> for 15 minutes, the water in the second container 30 is drained by the drainage section 90. Thereby, it will be in the 2nd state where the rice stored in the 1st container 50 is not immersed in water. Here, when there is a gap between the first container 50 and the second container 30, when the rice stored in the first container 50 is in a second state where it is not immersed in water, the drainage is It becomes unnecessary.

In the rice cooker of the fourth embodiment, by supplying water into the second container 30 by the water supply unit (40, L3, P2), a mechanism for moving the first container 50 and the second container 30 is not used. With a simple configuration, the rice stored in the first container 50 can be brought into the first state where it is immersed in the water in the second container 30.

Further, by draining water into the second container 30 by the drainage part 90, the first container 50 is accommodated in the first container 50 with a simple configuration without using a mechanism for moving the first container 50 or the second container 30. The rice can be brought into the second state where the rice is not immersed in the water in the second container 30. Moreover, a drainage part and a 2nd tank may be connected and water may circulate.

The rice cooker of the fourth embodiment has the same effect as the rice cooker of the first embodiment.

In the first to fourth embodiments, the heating cooking is performed by supplying the superheated steam generated by the steam generating unit 20 into the second container 30. Heat cooking may be performed by supplying water vapor at 100 ° C. into the second container 30.

In the first to fourth embodiments, rice cookers that cook rice as an example of grains have been described. However, the present invention is not limited to rice cookers, and grains such as barley, wheat, rice bran, straw, and beans are cooked. The present invention may be applied to other cooking devices.

Although specific embodiments of the present invention have been described, the present invention is not limited to the first to fourth embodiments, and various modifications can be made within the scope of the present invention. For example, a suitable combination of the contents described in the first to fourth embodiments may be used as one embodiment of the present invention.

The invention and the embodiment are summarized as follows.

The cooking device of this invention is
A first container 50 provided with a plurality of holes for passing water vapor on at least one of a side surface or a bottom surface;
A second container 30 for accommodating the first container 50 inside;
Either the first state in which the grain accommodated in the first container 50 is immersed in the water in the second container 30 or the second state in which the grain accommodated in the first container 50 is not immersed in water. Immersion state switching mechanism (110, 111, 112, 210, 211, 40, L3, P2, 90) for switching to be either
A steam generator 20 that generates steam for heating the grain and supplies the steam into the second container 30 in the second state where the grain accommodated in the first container 50 is not immersed in water; It is provided with.

According to the above configuration, for example, grains are put in the first container 50 and accommodated in the first container 50 by the immersion state switching mechanism (110, 111, 112, 210, 211, 40, L3, P2, 90). The finished grain is brought into a first state where it is immersed in water in the second container 30. When the moisture content of the grains increases due to water absorption, the grains contained in the first container 50 are immersed in water by the immersion state switching mechanism (110, 111, 112, 210, 211, 40, L3, P2, 90). The second state is not performed. In the second state in which the grain accommodated in the first container 50 is not immersed in water, the steam (or superheated steam) generated by the steam generation unit 20 is supplied into the second container 30, so that the steam is generated. Through the plurality of holes 50a and the opening 50b of the first container 50, the first container 50 is spread all over and the grain contained in the first container 50 is heated. Thereby, uniform heating cooking of grains, such as rice, is realizable.

Moreover, in the heating cooker of one embodiment,
The immersion state switching mechanism includes a first container moving mechanism (110, 111, 112) that moves the first container 50 upward so that the second state where the grain is not immersed in water is reached.

According to the above embodiment, the first container 50 is changed so that the grain accommodated in the first container 50 is changed from the first state where the grain is immersed in the water in the second container 30 to the second state where the grain is not immersed in water. By moving upward by the first container moving mechanism (110, 111, 112), it is possible to switch to the second state in which the grains stored in the first container 50 are not immersed in water with a simple configuration.

Moreover, in the heating cooker of one embodiment,
The immersion state switching mechanism includes a second container moving mechanism (210, 211, 212) that moves the second container 30 downward so that the second state in which the grain is not immersed in water is reached.

According to the above-described embodiment, the second container 30 is set so that the grain stored in the first container 50 is changed from the first state where the grain is immersed in the water in the second container 30 to the second state where the grain is not immersed in water. By moving downward by the second container moving mechanism (210, 211, 212), it is possible to switch to the second state in which the grains stored in the first container 50 are not immersed in water with a simple configuration.

Moreover, in the heating cooker of one embodiment,
A control device 100 for controlling the water vapor generation unit 20 and the immersion state switching mechanism (110, 111, 112, 210, 211, 40, L3, P2, 90);
The control device 100 includes:
By controlling the immersion state switching mechanism (110, 111, 112, 210, 211, 40, L3, P2, 90), the grain stored in the first container 50 is turned into water in the second container 30. After a predetermined period of time has elapsed in the first state soaked, the grain housed in the first container 50 is in the second state where it is not immersed in water,
In the second state where the grain is not immersed in water, the water vapor generation unit 20 is controlled to supply the water vapor generated by the water vapor generation unit 20 into the second container 30. The grain contained in one container 50 is heated.

According to the above-described embodiment, the immersion state switching mechanism (110, 111, 112, 210, 211, 40, L3, P2, 90) is controlled by the control device 100, and the first container 50 is kept in a preset period. The stored grain is brought into a first state where it is immersed in water in the second container 30, and after that period, the grain stored in the first container 50 is brought into a second state where it is not immersed in water. Thereby, after water absorption of the grain is performed reliably, the grain stored in the first container 50 is heated by the steam generated by the steam generation unit 20 in the second state where the grain is not immersed in water. be able to.

Moreover, in the heating cooker of one embodiment,
A control device 100 for controlling the water vapor generation unit 20 and the immersion state switching mechanism (110, 111, 112, 210, 211, 40, L3, P2, 90);
The control device 100 includes:
By controlling the soaking state switching mechanism (110, 111, 112, 210, 211, 40, L3, P2, 90), the grain is soaked in water in the second container 30 in the first state. After a period of time passed, the grain is not immersed in water in the second state,
In the second state in which the grain is not immersed in water, after the preset period has elapsed, the immersion state switching mechanism (110, 111, 112, 210, 211, 40, L3, P2, 90) is To the first state where the grain is immersed in water, and after a preset period of time,
Again, in the second state where the grain is not immersed in water,
In the second state in which the grain is not immersed in water, the water vapor generation unit 20 is controlled to supply the water vapor generated by the water vapor generation unit 20 into the second container 30. The grain contained in one container 50 is heated.

According to the above-described embodiment, the immersion state switching mechanism (110, 111, 112, 210, 211, 40, L3, P2, 90) is controlled by the control device 100, and the first container 50 is kept in a preset period. The stored grain is brought into a first state where it is immersed in water in the second container 30, and after that period, the grain stored in the first container 50 is brought into a second state where it is not immersed in water. Next, in the second state, after a preset period has elapsed, the immersion state switching mechanism (110, 111, 112, 210, 211, 40, L3, P2, 90) is controlled so that the grain is water. Return to the first state. Further, after a preset period has elapsed, the second state is set. Thereby, after water absorption of the grain is performed reliably, the grain stored in the first container 50 is heated by the steam generated by the steam generation unit 20 in the second state where the grain is not immersed in water. be able to. Furthermore, the texture is improved by setting the second state (<non-immersion step>) between the first state (<immersion step>) and the first state (<start-up step>).

Moreover, in the heating cooker of one embodiment,
The immersion state switching mechanism is configured to supply the water into the second container 30 so that the grain housed in the first container 50 is immersed in the water in the second container 30. A water supply part (40, L3, P2) is included.

According to the said embodiment, it is a simple structure without using the mechanism which moves the 1st container 50 and the 2nd container 30 by supplying water in the 2nd container 30 by the water supply part (40, L3, P2). Thus, the grain stored in the first container 50 can be in the first state where it is immersed in the water in the second container 30.

Moreover, in the heating cooker of one embodiment,
The immersion state switching mechanism includes a drainage unit 90 that drains the water in the second container 30 to bring the grain housed in the first container 50 into the second state that is not immersed in water. .

According to the embodiment, by draining water into the second container 30 by the drainage unit 90, the first container 50 can be configured with a simple configuration without using a mechanism for moving the first container 50 or the second container 30. The grain housed in the second container 30 can be in a second state that is not immersed in the water in the second container 30.

Moreover, in the heating cooker of one embodiment,
A member for providing a gap between the first container 50 and the second container 30 is provided.

According to the above embodiment, the first container 50 can be easily attached to a predetermined position in the second container 30.

DESCRIPTION OF SYMBOLS 1 ... Main body casing 2 ... Upper cover 10 ... 1st tank 11 ... Water supply port 20 ... Water vapor generation part 21 ... Water vapor generation heater 22 ... Heater for superheated water vapor 30 ... 2nd container 31 ... Heating heater 40 ... 2nd tank 41 ... Water supply Port 42 ... Heater for generating hot water 50 ... First container 50a ... Hole 50b ...

Opening

80, 90 ... Drainage part 100 ... Control device 100a ... Heating control part 100b ... Timer 110 ... Drive part 111 ... Hook 112 ... Engaging part 210 ... Driver 211 ... Convex L1 ... Pipe L2 ... Steam supply pipe L3 ... Pipe P1 ... First pump P2 ... Second pump

Claims

A first container (50) provided with a plurality of holes for passing water vapor on at least one of a side surface and a bottom surface;
A second container (30) for accommodating the first container (50) inside;
The cereal contained in the first container (50) is in a first state where the cereal is immersed in water in the second container (30), or the cereal contained in the first container (50) is immersed in water. An immersion state switching mechanism (110, 111, 112, 210, 211, 40, L3, P2, 90) for switching to be in any one of the second states that are not present;
Water vapor for heating the grain and supplying it into the second container (30) in the second state where the grain contained in the first container (50) is not immersed in water. A cooking device comprising a generation unit (20).
The heating cooker according to claim 1, wherein
The immersion state switching mechanism includes a first container moving mechanism (110, 111, 112) that moves the first container (50) upward so that the grain is in the second state where the grain is not immersed in water. A cooking device characterized by that.
The heating cooker according to claim 1 or 2,
The immersion state switching mechanism includes a second container moving mechanism (210, 211, 212) that moves the second container (30) downward so that the second state where the grain is not immersed in water is in the second state. A cooking device characterized by that.
In the heating cooker according to any one of claims 1 to 3,
A control device (100) for controlling the water vapor generation section (20) and the immersion state switching mechanism (110, 111, 112, 210, 211, 40, L3, P2, 90),
The control device (100)
By controlling the immersion state switching mechanism (110, 111, 112, 210, 211, 40, L3, P2, 90), the grain is immersed in water in the second container (30) in the first state. After the preset period has elapsed, the grain is in the second state where it is not immersed in water,
In the second state where the grain is not immersed in water, the water vapor generating part (20) is controlled to supply the water vapor generated by the water vapor generating part (20) into the second container (30). By doing so, the said grain accommodated in the said 1st container (50) is heated, The heating cooker characterized by the above-mentioned.
In the heating cooker according to any one of claims 1 to 3,
A control device (100) for controlling the water vapor generation section (20) and the immersion state switching mechanism (110, 111, 112, 210, 211, 40, L3, P2, 90),
The control device (100)
By controlling the immersion state switching mechanism (110, 111, 112, 210, 211, 40, L3, P2, 90), the grain is immersed in water in the second container (30) in the first state. After the preset period has elapsed, the grain is in the second state where it is not immersed in water,
In the second state in which the grain is not immersed in water, after the preset period has elapsed, the immersion state switching mechanism (110, 111, 112, 210, 211, 40, L3, P2, 90) is To the first state where the grain is immersed in water, and after a preset period of time,
Again, in the second state where the grain is not immersed in water,
In the second state where the grain is not immersed in water, the water vapor generating part (20) is controlled to supply the water vapor generated by the water vapor generating part (20) into the second container (30). By doing so, the said grain accommodated in the said 1st container (50) is heated, The heating cooker characterized by the above-mentioned.
In the heating cooker according to any one of claims 1 to 5,
The immersion state switching mechanism supplies water into the second container (30), so that the grain stored in the first container (50) is immersed in water in the second container (30). A heating cooker including a water supply unit (40, L3, P2) to be in the first state.
In the heating cooker according to any one of claims 1 to 6,
The immersion state switching mechanism (110, 111, 112, 210, 211, 40, L3, P2, 90) drains the water in the second container (30) to the first container (50). A cooking device characterized by including a drainage part (90) for making the second state in which the stored grain is not immersed in water.
The heating cooker according to claim 7, wherein
A cooking device comprising a member for providing a gap between the first container (50) and the second container (30).