WO2018146830A1 - Heating cooker - Google Patents

Abstract

Provided is a heating cooker comprising: a receptacle (1) that accommodates an object of cooking and a cooking liquid; and steam supplying devices (3, 4, 41, 100) that blow out superheated steam, which come into contact with the object of cooking and/or the cooking liquid in the receptacle (1), from a plurality of steam blow-out holes. A heating cooker that can perform uniform and even cooking using superheated steam is thus provided.

Description

Cooker Supporting statement

This application claims the benefit of priority to Japanese Patent Application No. 2017-022403 filed on Feb. 9, 2017, and incorporates all the descriptions in the Japanese application. Is.

The present invention relates to a cooking device, and more particularly to a cooking device that performs cooking using superheated steam.

Conventionally, as a heating cooker, there is a rice cooker that includes steam heating means that generates superheated steam exceeding 100 ° C., and that heats rice and water in a pan from the upper surface by superheated steam from the steam heating means (for example, a patent No. 4029892 (Patent Document 1)).

In the above-mentioned heating cooker, the rice with good taste is provided by supplementing the heating of rice and water with superheated steam from the top during cooking.

Patent No. 4029892

However, the above heating cooker has a problem that the whole rice cannot be heated uniformly because the heating by the superheated steam is only from the upper surface, and the cooking is uneven.

Therefore, an object of the present invention is to provide a heating cooker that can perform uniform and uniform heating using superheated steam.

The cooking device according to one aspect of the present invention is:
A container for containing cooked food and cooking liquid;
A steam supply device that blows out superheated steam from a plurality of steam blowout holes that are in contact with at least one of the cooked food or the cooking liquid in the container.

Here, the cooked material is rice-containing grains, vegetables, meat, fish, etc., and the cooking liquid is water or a mixture of water and seasonings.

As is clear from the above, according to the present invention, the superheated steam is blown out from the plurality of steam blowout holes that are in contact with at least one of the cooked food or the cooking liquid contained in the container. It is possible to realize a heating cooker capable of cooking without heat.

FIG. 1: is the perspective view which looked at the rice cooker as an example of the heating cooker of 1st Embodiment of this invention from diagonally upward. FIG. 2 is a perspective view of the rice cooker as viewed obliquely from below. FIG. 3 is a top view of the rice cooker. FIG. 4 is a bottom view of the rice cooker. FIG. 5 is a side view of the rice cooker as seen from the pump side. FIG. 6 is a cross-sectional view of the liquid reservoir and the steam duct connecting portion as seen from line VI-VI in FIG. FIG. 7 is a side view of the rice cooker as seen from the liquid storage container side. FIG. 8 is a sectional view taken along line VIII-VIII in FIG. FIG. 9 is a perspective view of the steam blowing unit and the steam duct of the rice cooker as viewed obliquely from above. FIG. 10 is a perspective view of the steam blowing unit and the steam duct as viewed obliquely from below. FIG. 11 is an exploded perspective view of the steam blowing unit. FIG. 12 is an exploded perspective view of the state where the lower member of the steam blowing unit is removed, as viewed obliquely from below. FIG. 13 is a perspective view of the state where the lower member of the steam blowing unit is removed as viewed obliquely from below. FIG. 14 is an exploded perspective view of the steam blowing unit as viewed obliquely from below. FIG. 15 is a view for explaining a steam path of the steam blowing unit. FIG. 16 is a control block diagram of the rice cooker. FIG. 17: is sectional drawing of the rice cooker as an example of the heating cooker of 2nd Embodiment of this invention.

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 perspective view seen from diagonally upward of the rice cooker as an example of the heating cooker of 1st Embodiment of this invention. In FIG. 1 and FIGS. 2 to 8 described later, the main body case and the lid of the rice cooker are omitted.

As shown in FIG. 1, the rice cooker according to the first embodiment is disposed on the lower side of the inner pot 1, the cylindrical storage part 2 that stores the lower side of the inner pot 1, and the storage part 2, A first heat transfer part 3 made of aluminum die cast that contacts the bottom of the inner pot 1, a second heat transfer part 4 made of aluminum die cast attached to the lower side of the first heat transfer part 3, and a storage part 2, a water tank 5 detachably attached to the side of 2, a pump 7 attached to the side of the storage unit 2 and in the vicinity of the water tank 5, and a pump motor 8 attached to the side of the pump 7. It is provided in the case.

The inner pot 1 is an example of a container for storing rice (cooked food) and water (cooking liquid). Two grips 11 are attached to the outer peripheral edge of the opening 1a of the inner pot 1 and the opposing positions.

Further, the water tank 5 and the inflow port of the pump 7 are connected via a pipe L1, a connection port 6 and a pipe L2. By removing the pipe L1 connected to the connection port 6, the water tank 5 and the pipe L1 can be removed from the rice cooker.

Also, a disc-shaped steam blowing unit 100 is detachably attached to the bottom of the inner pot 1. One end of a steam duct 200 is connected to the steam blowing unit 100. The steam blowing unit 100 is an example of a steam blowing unit. Here, the steam blowing unit 100 can be disassembled to clean the inside.

Moreover, FIG. 2 has shown the perspective view which looked at the said rice cooker from diagonally downward. In FIG. 2, the same components as those in FIG. 1 are denoted by the same reference numerals.

As shown in FIG. 2, the first heater 31 is embedded in the first heat transfer section 3 in an annular shape. A second heater 41 is embedded in the second heat transfer section 4 in an annular shape. In FIG. 2, 32 and 33 are connection terminals of the first heater 31, and 42 and 43 are connection terminals of the second heater 41.

Further, a through hole 3 a is provided at the center of the first heat transfer unit 3, and a through hole 4 a is provided at the center of the second heat transfer unit 4. A movable member 35 that is movable in the vertical direction is disposed in the through holes 3 a and 4 a of the first heat transfer unit 3 and the second heat transfer unit 4. The movable member 35 is biased upward by the coil spring 9, and the upper surface of the movable member 35 is in contact with the lower surface of the inner pot 1. An inner pot temperature sensor 36 for detecting the temperature of the bottom of the inner pot 1 is attached to the lower surface of the movable member 35.

Moreover, the outflow port of the pump 7 and the second heat transfer section 4 are connected via a pipe L3.

A steam generation space S (shown in FIG. 8) is formed between the first heat transfer section 3 and the second heat transfer section 4, and water from the pump 7 is supplied into the steam generation space S through the pipe L3. To do. In the steam generation space S formed between the first heat transfer unit 3 and the second heat transfer unit 4, the water supplied from the pump 7 is at least one of the first heater 31 and the second heater 41. It is heated and evaporated by the second heater 41, and the evaporated vapor is further heated to become superheated steam at 100 ° C. or higher. This superheated steam flows into the liquid reservoir 300 (shown in FIG. 3) via the pipe L4.

The first heat transfer unit 3, the second heat transfer unit 4, and the second heater 41 constitute a steam generation unit. The first heat transfer unit 3 and the second heat transfer unit 4 constitute a steam generation container.

FIG. 3 shows a top view of the rice cooker. In FIG. 3, the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals.

As shown in FIG. 3, the steam outlet unit 100 in the inner pot 1 is connected to a liquid reservoir 300 through a steam duct 200.

FIG. 4 shows a bottom view of the rice cooker. In FIG. 4, the same components as those in FIGS. 1 to 3 are denoted by the same reference numerals.

FIG. 5 shows a side view of the rice cooker as viewed from the pump 7 side. In FIG. 5, the same components as those in FIGS. 1 and 2 are denoted by the same reference numerals. In addition, 220 of FIG. 5 is the steam duct connection part to which the upper end of the steam duct 200 (shown in FIG. 3) was connected.

<Liquid reservoir>
Next, the liquid reservoir 300 will be described with reference to FIG.

FIG. 6 shows a cross-sectional view of the liquid storage container 300 and the steam duct connecting portion 220 as seen from line VI-VI in FIG.

As shown in FIG. 6, the liquid storage container 300 includes a rectangular parallelepiped container main body 301 having an upper opening, a lid portion 302 covering the upper opening of the container main body 301, and a steam outlet portion 303 erected on the lid portion 302. And have.

At the steam outlet 303 of the liquid storage container 300, backflow prevention valves 304 and 305 for restricting the flow from the steam duct 200 to the liquid storage container 300 are disposed. In addition, two electrodes 307 and 308 of the water level sensor 310 are attached to the lid 302. An air release valve 309 is attached to the lid 302. Further, a connecting portion 301 a to which a pipe L 4 is connected is provided on the side wall of the container main body 301.

The liquid reservoir 300 is detachably attached to the storage unit 2 (shown in FIG. 5) or the main body case.

Further, the steam duct connecting part 220 has an L shape that extends upward from the steam outlet part 303 side of the liquid reservoir 300 and bends to the inner pot 1 side (see FIG. 5). The lower end of the steam duct connection part 220 is connected to the steam outlet part 303 of the liquid reservoir 300. Moreover, the 1st connection part 200b (refer FIG. 9) of the steam duct 200 which penetrated the through-hole 12 provided in the side wall of the inner pot 1 is connected to the upper end of the steam duct connection part 220. FIG.

Next, FIG. 7 shows a side view of the rice cooker as viewed from the liquid storage container 300 side. In FIG. 7, the same components as those in FIGS. 1 to 5 are given the same reference numerals. .

As shown in FIG. 7, the first heat transfer section 3 is disposed below the cylindrical storage section 2 that stores the inner pot 1, and the second heat transfer section 4 is positioned below the first heat transfer section 3. Is arranged.

<Steam supply device>
Next, a steam supply device for blowing superheated steam into the inner pot 1 will be described with reference to FIG.

FIG. 8 shows a sectional view taken along line VIII-VIII in FIG. In FIG. 8, the same components as those in FIGS. 1 to 7 are denoted by the same reference numerals.

As shown in FIG. 8, a steam generation space S is formed between the first heat transfer unit 3 and the second heat transfer unit 4. Here, the first heater 31 of the first heat transfer unit 3 and the second heater 41 of the second heat transfer unit 4 are turned on, and steam generated between the first heat transfer unit 3 and the second heat transfer unit 4 is generated. By supplying water from the pump 7 (shown in FIG. 1) into the space S, the water is heated and evaporated in the steam generation space S, and further heated superheated steam is generated.

The superheated steam generated in the steam generation space S is supplied to the liquid storage container 300 through the pipe L4, and then supplied to the steam blowing unit 100 through the steam duct connection part 220 and the steam duct 200. Then, the steam is blown from the plurality of steam blowing holes 111, 112,... (Shown in FIG. 9) of the steam blowing unit 100 from below in the inner pot 1. Thereby, the mixture of the rice and water in the inner pot 1 is heated.

The first heat transfer unit 3, the second heat transfer unit 4, the second heater 41, and the steam blowing unit 100 constitute a steam supply device. In the steam generation part constituted by the first heat transfer part 3, the second heat transfer part 4 and the second heater 41, superheated steam of about 300 ° C. is generated, and in the liquid reservoir 300 and the steam duct 200, superheated steam is generated. The temperature is about 200 ° C., and the temperature of the superheated steam blown out from the steam blowing holes 111, 112,... Is about 140 ° C. to 150 ° C.

In addition, when taking out the inner pot 1 from the storage part 2, the connection between the steam duct connecting part 220 and the liquid reservoir 300 is disconnected, and the steam blowing unit 100, the steam duct 200, and the steam duct connecting part 220 are taken out together. .

<Steam outlet unit and steam duct>
Next, the steam outlet unit 100 and the steam duct 200 will be described with reference to FIGS.

FIG. 9 shows a perspective view of the steam blow-out unit 100 and the steam duct 200 as viewed obliquely from above.

As shown in FIG. 9, the steam blowing unit 100 includes a disk-shaped upper member 101 having a through hole 101 a at the center, a first elastic ring member 104 attached to the outer peripheral edge of the upper member 101, and an upper member 101. And a second elastic ring member 105 attached to the inner periphery of the through hole 101a. The upper member 101 has a plurality of steam blowing holes 111 to 116, 121 to 124, 131 to 134, 141 to 146. The plurality of steam blowing holes 111 to 116, 121 to 124, 131 to 134, 141 to 146 are in contact with rice (cooked food) and water (cooking liquid) in the inner pot 1 (shown in FIG. 8). The steam outlets 111 to 116, 121 to 124, 131 to 134, and 141 to 146 have a circular shape with a diameter of about 1/2 to 1/3 that of rice grains.

The steam duct 200 includes a steam duct body 200a that bends along the inner wall of the inner pot 1 (shown in FIG. 8), a first connection portion 200b that is provided at the upper end of the steam duct body 200a, and a steam duct body. And a second connection portion 200c provided at the lower end of 200a.

FIG. 10 is a perspective view of the steam blowing unit 100 and the steam duct 200 as viewed obliquely from below. As shown in FIG. 10, the steam blowing unit 100 has a disk-like lower member 103 having a through hole 103a at the center.

An exploded perspective view of the steam blowing unit 100 is shown in FIG. As shown in FIG. 11, the steam blowing unit 100 includes a disk-shaped upper member 101 having a through hole 101a at the center, a disk-shaped packing 102 made of a heat-resistant elastic material, and a disk-shaped packing member 102. A lower member 103 is provided. The upper member 101, the packing 102, and the disk-like lower member 103 are integrated by a first elastic ring member 104 and a second elastic ring member 105 in a state where they are overlapped.

FIG. 12 shows an exploded perspective view of the state where the lower member 103 of the steam blowing unit 100 is removed as viewed obliquely from below. 12, the same components as those in FIGS. 9 to 11 are denoted by the same reference numerals.

As shown in FIG. 12, the upper member 101 is provided with a long hole-shaped connection hole 101b. The second connection part 200c at the lower end of the steam duct 200 shown in FIG. 9 is connected to the connection hole 101b.

FIG. 13 shows a perspective view of the steam blower unit 100 with the lower member 103 removed as viewed obliquely from below, and FIG. 14 shows an exploded perspective view of the steam blower unit 100 as seen obliquely from below. .

As shown in FIGS. 13 and 14, hook-shaped convex portions 1021, 1022, 1023, and 1024 are provided on the back side of the packing 102. Steam paths 110, 120, 130, and 140 (shown in FIG. 15) are formed between the concave grooves on the front surface side of the bowl-shaped convex portions 1021, 1022, 1023, and 1024 and the back surface side of the upper member 101. .

Next, the steam paths 110, 120, 130, and 140 of the steam blowing unit 100 will be described with reference to FIG. In FIG. 15, the top view of the steam blowing unit 100 is shown.

As shown in FIG. 15, the steam path 110 includes an inlet portion 110a extending radially inward from the inlet 201, a curved portion 110b extending in a circumferential direction and a semicircular arc shape from the tip of the inlet portion 110a, and a curved portion 110b. A straight portion 110c extending radially outward from the tip of the straight portion, and a curved portion 110d extending in a circumferential direction and a semicircular arc shape from the tip of the straight portion 110c. In order from the vicinity of the straight portion 110c of the curved portion 110d of the steam path 110, steam blowing holes 111 to 116 are provided at positions of the upper member 101 facing the curved portion 110d.

Further, the steam path 120 has an inlet portion 120a that extends radially inward from the inlet 202, and a curved portion 120b that extends in a circumferential direction and an arc shape from the tip of the inlet portion 120a. In order from the vicinity of the inlet 120a of the curved portion 120b of the steam path 120, steam blowing holes 121 to 124 are provided at positions of the upper member 101 facing the curved portion 120b.

The steam path 130 includes an inlet portion 130a extending radially inward from the inlet 203, a curved portion 130b extending in a circumferential direction and a semicircular arc shape from the tip of the inlet portion 130a, and a radial direction from the tip of the curved portion 130b. It has a straight portion 130c extending inward and a curved portion 130d extending in the circumferential direction and in an arc from the tip of the straight portion 130c. In order from the vicinity of the straight portion 130c of the curved portion 130d of the steam path 130, steam blowing holes 131 to 134 are provided at positions of the upper member 101 facing the curved portion 130d.

Furthermore, the steam path 140 extends from the inflow port 204 in a circumferential direction and in a semicircular arc shape. In order from the vicinity of the inlet 204 of the steam path 130, steam blowing holes 141 to 146 are provided at the position of the upper member 101 facing the steam path 140. Here, the steam outlet holes 111, 121, 131, 141 closest to the respective inlets 201, 202, 203, 204 of the steam path 110, the steam path 1120, the steam path 130, and the steam path 140 are the respective inlet ports 201. , 202, 203, 204 are different from each other, and are arranged apart from each other in the bottom surface of the inner pot 1. Thereby, the food in the inner pot 1 can be heated uniformly.

In the upper member 101, the curved portion 110d of the steam path 110 and the steam path 140 have shapes close to line symmetry with a straight line passing through the center of the upper member 101 as an axis.

Further, the curved portion 120b of the steam path 120 and the curved portion 130d of the steam path 130 have shapes that are close to line symmetry with a straight line passing through the center of the upper member 101 as an axis.

According to the rice cooker of the said structure, the steam supply apparatus (The 1st heat-transfer part 3, the 2nd heat-transfer part 4, the 2nd heater 41, the steam blowing unit 100) was accommodated in the inner pot 1 (container). By blowing out superheated steam from a plurality of steam outlets 111 to 116, 121 to 124, 131 to 134, 141 to 146 in contact with rice (cooking) and water (cooking liquid), a plurality of steam outlets 111 to 116, 121-124, 131-134, 141-146 overheated steam gas of 100 ° C or higher efficiently heats the food while stirring the food, cooking liquid, or mixture of food and cooking liquid. Since it conveys, uniform and uniform cooking can be performed, and a good cooking finish can be realized. Moreover, by cooking with high-temperature superheated steam, it is possible to cook rice with elasticity and graininess.

Moreover, the steam generation part (the 1st heat-transfer part 3, the 2nd heat-transfer part 4, the 2nd heater 41) which generate | occur | produces superheated steam, and the steam blowing part (steam blowing unit 100) which blows off superheated steam in the inner pot 1 Are separately disposed, the steam blowing unit 100 can be disposed in the inner pot 1 and the superheated steam can be efficiently supplied into the inner pot 1.

In addition, the plurality of steam blowing holes 111 to 116, 121 to 124, 131 to 134, and 141 to 146 of the steam blowing unit 100 are arranged at the bottom of the inner pot 1 so that the cooking housed in the inner pot 1 is cooked. Stirring and heating can be efficiently performed by supplying superheated steam from the lower side to the upper side of the product, the cooking liquid, or the mixture of the cooking product and the cooking liquid.

Further, a plurality of steam paths 110, 120, 130, 140 branched from the inflow ports 201-204 into which superheated steam from the steam generating section (3,4, 41) flows are formed into a plurality of steam outlet holes 111-116, 121. To 124, 131 to 134, 141 to 146, the superheated steam flowing in from the inflow ports 201 to 204 through the plurality of steam paths 110, 120, 130, and 140 through the steam outlet holes 111 to 116, 121. To 124, 131 to 134, and 141 to 146, respectively, the superheated steam can be uniformly supplied into the container 1.

Further, the plurality of steam paths 110, 120, 130, and 140 have different distances from the inlets 201 to 204 to the first steam outlet holes 111, 121, 131, and 141, but the steam paths 110, 120, and 140 are different from each other. The pressures of superheated steam blown out from the first steam blowing holes 111, 121, 131, 141 of 130, 140 are substantially the same.

Thus, in one steam path 110, 120, 130, 140, the other steam blowing holes 112-116, 122-124, 132- provided downstream of the first steam blowing holes 111, 121, 131, 141 are provided. The pressure of superheated steam blown out from 134, 142 to 146 decreases toward the downstream side. Therefore, by disposing discretely the first steam outlet holes 111, 121, 131, 141 of each steam path 110, 120, 130, 140, the remaining other steam outlet holes 112-116, 122-124, 132 are arranged. The superheated steam can be supplied more uniformly into the inner pot 1 together with ~ 134, 142 ~ 146.

Moreover, by providing the steam blowing unit 100 that is detachably attached in the inner pot 1, the steam blowing unit 100 can be removed from the inner pot 1 and cleaning and other operations can be facilitated, and maintenance is improved.

Moreover, the heating time can be shortened by adding the heating capability of heating the inner pot 1 by the first heater 31 to the heating capability of the superheated steam blown out from the steam supply device (3, 4, 41, 100). .

Further, the first heater 31 also serves as a heating means for heating both the inner pot 1 and the steam generators (3, 4, 41), so that the heat of the first heater 31 is used for heating the inner pot 1 and generating steam. It can be used effectively. Moreover, installation space can be reduced and cost can be reduced.

Further, the cooking liquid in the inner pot 1 passes through the plurality of steam outlet holes 111 to 116, 121 to 124, 131 to 134, 141 to 146 of the steam outlet unit 100, and generates steam (3,4, 41). Is prevented from flowing back into the steam generation space S by the backflow prevention valves 304, 305, so that the cooking liquid flows into the steam generation section (3,4, 41) and foreign matter enters the steam generation section (3,4, 41). Will not be mixed.

In addition, a plurality of steam outlet holes 111 to 116, 121 to 124, of the steam outlet unit 100 are provided in a liquid reservoir container 300 disposed between the steam outlet unit 100 and the steam generator (3,4, 41). The cooking liquid that has flowed back through 131 to 134 and 141 to 146 accumulates to prevent the cooking liquid from flowing into the steam generation section (3,4,41), and the steam generation section (3,4,41). It is possible to surely prevent foreign matter from entering.

<Control device>
Next, heating control of the rice cooker will be described with reference to a control block diagram shown in FIG.

The rice cooker includes a control device 400 including a microcomputer and an input / output circuit as shown in FIG.

The control device 400 is connected to the pump motor 8, the display operation unit 10, the first heater 31, the inner pot temperature sensor 36, the second heater 41, and the water level sensor 310.

The control device 400 controls the pump motor 8, the first heater 31, the second heater 41, and the like based on detection signals from the inner pot temperature sensor 36 and the like.

By controlling the first heater 31 for heating the first heat transfer section 3 and the second heater 41 for heating the second heat transfer section 4 by the control device 400, for example, a water supply process, a startup process, Depending on the situation such as the cooking process, the steaming process, the heat retaining process, etc., the on / off of the first heater 31 and the second heater 41 is controlled to heat the heater to the inner pot 1 and the rice in the inner pot 1 (cooked food ) And water (cooking liquid) combined with heating with superheated steam as appropriate, optimal heating cooking is possible, and a better cooking finish can be realized.

When the water level sensor 310 detects that the water level in the liquid reservoir 300 has reached a predetermined water level, the control device 400 detects the steam supply device (the first heat transfer unit 3, the second heat transfer unit 4, the second heater 41). , The steam blowing unit 100) is kept in a stopped state, and the display operation unit 10 notifies the user to discard the liquid in the liquid reservoir 300.

In the first embodiment, the steam blowing unit 100 integrated with the first elastic ring member 104 and the second elastic ring member 105 in a state where the upper member 101, the packing 102, and the disk-like lower member 103 are overlapped. Although used, the upper member 101 and the packing 102 may be detachably attached to the bottom of the inner pot 1 without the lower member 103.

[Second Embodiment]
FIG. 17: has shown sectional drawing of the rice cooker as an example of the heating cooker of 2nd Embodiment of this invention. The rice cooker of this second embodiment has the same configuration as that of the rice cooker of the first embodiment except for the steam duct 240 and the steam duct connection portion 250, and the same reference numerals are assigned to the same components. ing.

In the rice cooker of the second embodiment, as shown in FIG. 17, a disc-shaped steam blowing unit 100 is detachably attached to the bottom of the inner pot 1. One end of a steam duct 240 is connected to the steam blowing unit 100.

Further, the steam duct connection part 250 has an L shape that extends upward from the steam outlet part 303 side of the liquid reservoir 300 and bends toward the opening part 1a side of the inner pot 1. The lower end of the steam duct connection part 250 is connected to the steam outlet part 303 of the liquid reservoir 300.

Thus, in the rice cooker of 1st Embodiment, while the steam duct 200 penetrates the side wall of the inner pot 1 and is connected to the liquid storage container 300, the rice cooker of this 2nd Embodiment is Without passing through the side wall of the inner pot 1, superheated steam is supplied to the steam blowing unit 100 via the steam duct connection part 250.

The heating cooker according to the second embodiment has the same effect as the heating cooker according to the first embodiment.

[Third Embodiment]
The rice cooker as an example of the heating cooker according to the third embodiment of the present invention has the same configuration as that of the heating cooker according to the first embodiment except for the steam generator.

The heating cooker according to the first embodiment includes the steam generation unit configured by the first heat transfer unit 3, the second heat transfer unit 4, and the second heater 41, whereas the third embodiment. The heating cooker includes a steam generation unit that is separate from the heat transfer unit disposed on the lower side of the inner pot 1, and a heater that heats the steam generation unit.

The heating cooker according to the third embodiment has the same effect as the heating cooker according to the first embodiment.

[Fourth Embodiment]
The rice cooker as an example of the heating cooker according to the fourth embodiment of the present invention has the same configuration as that of the heating cooker according to the first embodiment except for the steam outlet.

In the cooking device of the first embodiment, the steam blowing unit 100 is provided as a steam blowing portion at the bottom of the inner pot 1, whereas the cooking device of the fourth embodiment is provided in the inner pot 1. A steam outlet having a plurality of steam outlets is provided on the side wall of the main body. In addition, a steam blowing part may equip both the bottom part and side wall in the inner pot 1 with a steam blowing part.

The cooking device according to the fourth embodiment has the same effect as the cooking device according to the first embodiment.

In the first to fourth embodiments, the rice cooker has been described as the heating cooker. However, the heating cooker of the present invention is not limited to the rice cooker, and the present invention is not limited to the cooking cooker having other configurations such as a cooking pot. Can be applied. For example, in a cooking pan to which the present invention is applied, a mixture of a cooked product and cooking liquid may be cooked with superheated steam, or only cooked products such as grains, vegetables, meat, and fish containing rice are cooked with superheated steam. Heat cooking may be performed, and only cooking liquid such as water or a mixed liquid of water and seasoning may be cooked with superheated steam.

In the first to fourth embodiments, as an example of a cooking device, a rice cooker provided with a steam generating unit composed of a first heat transfer unit 3, a second heat transfer unit 4, and a second heater 41 is used. Although demonstrated, the steam generation part of a heating cooker is not restricted to this, The steam generation part which has the 1st heater and the 2nd heater which heat a steam generation container and its steam generation container may be sufficient. In this case, by controlling the first heater and the second heater that heat the steam generating container with the control device, for example, in a rice cooker that is an example of a heating cooker, a water supply process, a startup process, a cooking process, Optimal cooking is possible by controlling the on / off of the first heater and the second heater according to the conditions such as the steaming process and the heat retaining process, and adjusting the temperature and amount of superheated steam generated in the steam generating container. Thus, a better cooking finish can be realized.

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 according to one aspect of the present invention is:
A container 1 for containing a cooked product and a cooking liquid;
A steam supply device (3, 4, 41, 100).

Here, the cooked material is rice-containing grains, vegetables, meat, fish, etc., and the cooking liquid is water or a mixture of water and seasonings.

According to the above configuration, the steam supply device (3, 4, 41, 100) has a plurality of steam blowout holes 111 to 116, 121 to 124, which are in contact with at least one of the cooked food or cooking liquid stored in the container 1. When superheated steam is blown out from 131 to 134, 141 to 146, the superheated steam gas of 100 ° C. or more blown out from the plurality of steam blowing holes 111 to 116, 121 to 124, 131 to 134, 141 to 146 is cooked. Alternatively, heat is efficiently transmitted while stirring the cooking liquid or the mixture of the cooking product and the cooking liquid, so that uniform and uniform heating cooking can be performed, and a good cooking finish can be realized. In addition, cooking by cooking rice or boiled food with high-temperature superheated steam at 100 ° C or higher makes it possible to easily cook at the same high temperature as a pressure cooker without using dangerous cooking utensils such as a pressure cooker. Become.

Moreover, in the heating cooker of one embodiment,
The steam supply device (3,4, 41, 100)
A steam generator (3,4, 41) for generating the superheated steam;
A steam blowing section for blowing the superheated steam from the steam generating section (3, 4, 41) into the container 1 through the plurality of steam blowing holes 111 to 116, 121 to 124, 131 to 134, 141 to 146 100.

According to the above-described embodiment, the steam generating unit (3, 4, 41) that generates superheated steam and the steam blowing unit 100 that blows out superheated steam into the container 1 are arranged separately, whereby the steam blowing unit 100 is arranged. It can arrange | position in the container 1 and can supply superheated steam in the container 1 efficiently.

Moreover, in the heating cooker of one embodiment,
The plurality of steam outlet holes 111 to 116, 121 to 124, 131 to 134, 141 to 146 of the steam outlet 100 are arranged at the bottom of the container 1.

According to the above embodiment, the plurality of steam blowing holes 111 to 116, 121 to 124, 131 to 134, 141 to 146 of the steam blowing unit 100 are accommodated in the container 1 by arranging them at the bottom of the container 1. Stirring and heating can be efficiently performed by supplying superheated steam from the lower side to the upper side of the cooked food, or the cooking liquid, or the mixture of the cooking and cooking liquid.

Moreover, in the heating cooker of one embodiment,
The steam outlet 100 is
Inflow ports 201 to 204 into which the superheated steam from the steam generating section (3,4, 41) flows,
A plurality of steam paths 110, 120, 130, 140 branched from the inflow ports 201-204 and connected to any one of the plurality of steam outlet holes 111-116, 121-124, 131-134, 141-146; Have
The plurality of steam paths 110, 120, 130, and 140 guide the superheated steam flowing in from the inlets 201 to 204 to the steam outlet holes 111 to 116, 121 to 124, 131 to 134, and 141 to 146, respectively. .

According to the above embodiment, the plurality of steam paths 110, 120, 130, and 140 branched from the inlets 201 to 204 into which superheated steam from the steam generating section (3,4, 41) flows are formed into the plurality of steam outlet holes. 111 to 116, 121 to 124, 131 to 134, 141 to 146, the superheated steam that has flowed from the inlets 201 to 204 through the plurality of steam paths 110, 120, 130, and 140 is formed into a steam outlet hole. 111 to 116, 121 to 124, 131 to 134, and 141 to 146 are respectively guided, so that superheated steam can be uniformly supplied into the container 1.

Moreover, in the heating cooker of one embodiment,
The plurality of steam paths 110, 120, 130, and 140 have different distances from the inlets 201 to 204 to the first steam outlet holes 111, 121, 131, and 141, respectively.

According to the above embodiment, the plurality of steam paths 110, 120, 130, and 140 have different distances from the inflow ports 201 to 204 to the first steam outlet holes 111, 121, 131, and 141, respectively. First steam outlet holes 111, 121, 131, 141 having substantially the same superheated steam pressure in each of the steam paths 110, 120, 130, 140 are discretely arranged, and the remaining steam outlet holes 112-116, The superheated steam can be more uniformly supplied into the container 1 together with 122 to 124, 132 to 134, 142 to 146.

Moreover, in the heating cooker of one embodiment,
The steam blowing part 100 is detachably attached to the container 1.

According to the above embodiment, by providing the steam blowing part 100 detachably attached in the container 1, it is possible to remove the steam blowing part 100 from the container 1 and to easily perform operations such as cleaning, thereby improving maintainability. To do.

Moreover, in the heating cooker of one embodiment,
The steam blowing unit 100 can be disassembled into a plurality of parts.

According to the above-described embodiment, by providing the steam blowing unit 100 that can be decomposed into a plurality of parts, the steam blowing unit 100 can be disassembled and cleaning and other operations can be easily performed, and maintenance is improved.

Moreover, in the heating cooker of one embodiment,
A heater 31 for heating the container 1 was provided.

According to the above embodiment, the heating time can be shortened by adding the heating capability of heating the container 1 by the heater 31 to the heating capability of the superheated steam blown from the steam supply device (3, 4, 41, 100).

Moreover, in the heating cooker of one embodiment,
A heater 31 for heating the container 1 and the steam generation part (3, 4, 41) was provided.

According to the above-described embodiment, the heater 31 also serves as a heating means for heating both the container 1 and the steam generation unit (3,4, 41), so that the heat of the heater 31 is effectively used for heating the container 1 and generating steam. Available.

Moreover, in the heating cooker of one embodiment,
A first heater 31 for heating the container 1 is provided,
The steam generation part (3,4,41) has a steam generation container (3,4) and a second heater 41 for heating the steam generation container (3,4),
A control device 400 that controls the first heater 31 and the second heater 41 is provided.

According to the above embodiment, the control device 400 controls the first heater 31 that heats the container 1 and the second heater 41 that heats the steam generation container (3, 4), for example, a cooking device. In the rice cooker which is an example, the container 1 itself is controlled by controlling on / off of the first heater 31 and the second heater 41 according to the situation of the water supply process, the startup process, the cooking process, the steaming process, the heat retaining process, etc. By appropriately combining the heating to the cooking and the heating with the superheated steam to the cooking liquid, it becomes possible to perform the optimum heating cooking and realize a better cooking finish.

Moreover, in the heating cooker of one embodiment,
The steam generation unit has a steam generation container and a first heater and a second heater for heating the steam generation container,
A control device for controlling the first heater and the second heater is provided.

According to the above embodiment, by controlling the first heater and the second heater that heat the steam generating container by the control device, for example, in a rice cooker that is an example of a heating cooker, a water supply process, a startup process, By adjusting the temperature and amount of superheated steam generated in the steam generation container by controlling on / off of the first heater and the second heater according to the situation such as the cooking process, steaming process, heat insulation process, etc. Heat cooking is possible, and a better cooking finish can be realized.

Moreover, in the heating cooker of one embodiment,
The cooking liquid in the container 1 passes through the plurality of steam outlet holes 111 to 116, 121 to 124, 131 to 134, 141 to 146 of the steam outlet 100, and the steam generator (3,4, 41). ) Are provided with backflow prevention valves 304 and 305 for preventing backflow.

According to the above embodiment, the cooking liquid in the container 1 passes through the plurality of steam outlet holes 111 to 116, 121 to 124, 131 to 134, 141 to 146 of the steam outlet 100, and the steam generator (3,4). , 41) is prevented by the backflow prevention valves 304, 305, so that the cooking liquid does not flow into the steam generation section (3,4, 41) and foreign matter does not enter the steam generation section.

Moreover, in the heating cooker of one embodiment,
A liquid storage container 300 is provided between the steam outlet 100 and the steam generator (3, 4, 41).

According to the above embodiment, the liquid reservoir 300 disposed between the steam outlet 100 and the steam generator (3, 4, 41) is provided with the plurality of steam outlets 111 to 116, 121 to 124, 131 to 134, and 141 to 146 accumulate the cooking liquid that has flowed back, thereby preventing the cooking liquid from flowing into the steam generating section (3,4, 41), and the steam generating section (3, 4,41) can be reliably prevented.

1 ... Inner pot (container)
DESCRIPTION OF SYMBOLS 1a ... Opening part 2 ... Storage part 3 ... 1st heat-transfer part 4 ... 2nd heat-transfer part 5 ... Water tank 6 ... Connection port 7 ... Pump 8 ... Pump motor 9 ... Coil spring 10 ... Display operation part 11 ... Handle 31 ... 1st heater 35 ... Movable member 36 ... Inner pan temperature sensor 41 ... 2nd heater 100 ... Steam blowing unit (steam blowing part)
DESCRIPTION OF SYMBOLS 101 ... Upper member 101b ... Connection hole 102 ... Packing 103 ... Lower member 104 ... 1st elastic ring member 105 ... 2nd elastic ring member 110,120,130,140 ... Steam path 111-116,121-124,131-134 , 141 to 146 ... steam outlet holes 200 and 240 ... steam duct 200a ... steam duct body 200b ... first connection part 200c ... second connection part 201 to 204 ... inlet 220,250 ... steam duct connection part 300 ... DESCRIPTION OF SYMBOLS 301 ... Container main body 302 ... Cover part 303 ... Steam outlet part 304,305 ... Backflow prevention valve 307,308 ... Electrode 309 ... Atmospheric release valve 310 ... Water level sensor S ... Steam generation space

Claims (13)

A container for containing cooked food and cooking liquid;
A steam cooker comprising: a steam supply device that blows out superheated steam from a plurality of steam blowout holes in contact with at least one of the cooked food or the cooking liquid in the container. The heating cooker according to claim 1, wherein
The steam supply device is
A steam generating section for generating the superheated steam;
A heating cooker, comprising: a steam blowing portion that blows out the superheated steam from the steam generating portion into the container through the plurality of steam blowing holes. The cooking device according to claim 2,
The cooking device according to claim 1, wherein the plurality of steam blowing holes of the steam blowing portion are arranged at a bottom portion in the container. In the heating cooker according to claim 2 or 3,
The steam outlet is
An inlet into which the superheated steam from the steam generating section flows,
A plurality of steam paths branched from the inlet and connected to any one of the plurality of steam outlet holes;
The plurality of steam paths guide the superheated steam flowing in from the inlet to the steam outlet holes, respectively. The cooking device according to claim 4, wherein
The plurality of steam paths have different distances from the inlet to the first steam outlet hole, respectively. In the heating cooker according to any one of claims 2 to 5,
The steam cooker, wherein the steam blowing part is detachably attached to the container. In the heating cooker according to any one of claims 2 to 6,
The steam cooker, wherein the steam blowing part can be disassembled into a plurality of parts. In the heating cooker according to any one of claims 1 to 7,
A heating cooker comprising a heater for heating the container. In the heating cooker according to any one of claims 2 to 7,
A heating cooker comprising a heater for heating the container and the steam generator. In the heating cooker according to any one of claims 2 to 7,
A first heater for heating the container;
The steam generation unit has a steam generation container and a second heater for heating the steam generation container,
A heating cooker comprising a control device for controlling the first heater and the second heater. In the heating cooker according to any one of claims 2 to 7,
The steam generation unit has a steam generation container and a first heater and a second heater for heating the steam generation container,
A heating cooker comprising a control device for controlling the first heater and the second heater. In the heating cooker according to any one of claims 2 to 7,
A cooking device comprising a backflow prevention valve for preventing the cooking liquid in the container from flowing back to the steam generating section through the plurality of steam blowing holes of the steam blowing section. . In the heating cooker according to any one of claims 2 to 7, or any one of claims 9 to 12,
A heating cooker comprising a liquid reservoir disposed between the steam blowing section and the steam generating section.

Images