JP2011050783A - Rice cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rice cooker of simple constitution, capable of preventing vibration and noises from being generated, and water from flowing backwards, when treated by steam. <P>SOLUTION: This rice cooker 100 includes a body 20, a lid body 10 installed turnably in the body 20, an inner pot 30 mounted on the body 20, a water tank 60 installed attachably and detachably to the body 20, air reservoir means 70 installed attachably and detachably to the water tank 60, and gas guide means 50 for communicating the lid body 10 with the air reservoir means 70. Air in the inner pot 30 is injected into the air reservoir means 70 through the gas guide means 50, when staring rice cooking, an air reserving part T is formed once in an upper side thereof, and steam V generated in the inner pot 30 is injected thereafter into the air reserving part T, and is cooled down by water W, to be condensed (get to condensed water). <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a rice cooker, and more particularly to a rice cooker having means for condensing water vapor generated during rice cooking.

Conventionally, a rice cooker having heat exchange means for condensing water vapor (condensation or ascites) is provided at the bottom of a water tank in order to prevent the water vapor generated during rice cooking from being released around the rice cooker. A steam recovery device that allows steam to flow into water from a hole is disclosed (for example, see Patent Document 1).
In addition, a steam recovery device is disclosed in which a steam discharge port of a steam discharge path that enters the water tank is disposed near the bottom surface of the water tank to discharge water vapor into the water (see, for example, Patent Document 2).
Furthermore, a cooking device is disclosed in which a steam pipe that penetrates the container in which the heat storage material is sealed is provided, and the temperature of the water vapor that passes through the steam pipe is transmitted to the heat storage material to condense (condensate) the water vapor. For example, see Patent Document 3).

Japanese Utility Model Publication No. 60-106532 (page 2-4, FIG. 1) Japanese Patent Laid-Open No. 03-231613 (second page, FIG. 1) Japanese Patent Laid-Open No. 03-182212 (page 2-3, FIG. 1)

However, the inventions disclosed in Patent Documents 1 to 3 have the following problems.
(I) The inventions disclosed in Patent Document 1 and Patent Document 2 inject water vapor into water and condense it. Therefore, when water vapor is injected into water, bubbles (precisely, foam-like) Since the bubbles of water vapor are once formed and then the bubbles disappear, there is a problem that vibration and noise occur due to the repeated generation and disappearance of the bubbles.
(Ii) In addition, the invention disclosed in Patent Document 1 is provided with a check valve that prevents water from flowing out of the water tank through a hole provided in the bottom of the water tank before rice cooking, There is a problem that a passage for introducing water vapor to the bottom needs to be formed integrally with the water tank, and the configuration of the apparatus becomes complicated. For this reason, the manufacturing cost is increased, and cleaning after use is troublesome (an unwashed portion is generated in the bent back).

(Iii) Further, the invention disclosed in Patent Document 2 has a problem that the number of parts increases because a blower for forcibly discharging water vapor into water is provided. In addition, when the temperature of the inner pot and the water vapor discharge path is reduced and the pressure is reduced, there is a problem that water flows back to the water vapor discharge path.
(Iv) Furthermore, although the invention disclosed in Patent Document 3 eliminates the “problem that vibration and noise occur” and the “problem that water flows backward”, the configuration of the apparatus is complicated. There was a problem. For this reason, the manufacturing cost has increased and cleaning after use has been difficult (particularly, the steam pipe cannot be separated from the container and the inner surface of the steam pipe cannot be washed).

  The present invention has been made to solve the above-mentioned problems, and solves the above-mentioned problems of causing vibration and noise and the problem of water flowing backward, although the apparatus configuration is simple. It aims at providing the rice cooker which can do.

The rice cooker according to the present invention is
An inner pot for storing cooked rice,
Heating means for heating the cooked rice;
A main body on which the inner pot is mounted and equipped with the heating means;
A lid that is installed on the main body and covers the upper opening of the inner hook so as to be freely opened and closed;
Gas induction means for inducing air discharged from the inner pot and steam generated from the cooked rice when the cooked rice is heated,
An air reservoir means into which the air and steam induced by the gas guiding means are injected;
A water tank in which water is stored and which stores the air retaining means;
Have
The air reservoir means is
In a state where water is stored in the water tank, the water tank is provided at a position where a water layer having a predetermined height is formed above the air reservoir.
When rice cooking is started, an air reservoir is formed in the air reservoir by the air injected through the gas guiding device.

The rice cooker according to the present invention has the following effects because water vapor generated during rice cooking is injected into the air reservoir.
(1) Since bubbles (collectively referred to as air bubbles and water vapor bubbles) are collected in water, vibration and noise due to the disappearance of fine bubbles do not occur.
(2) Since it only forms a gas inlet near the tank top plate of the water tank or the tank top plate of the tank side plate, the structure of the water tank is simplified, and the manufacturing cost is reduced, and after use Easy to clean.
(3) Also, the air trapped in the inner pot and the generated water vapor are naturally injected into the water tank (without being forcibly driven) by the generated water vapor pressure, minimizing the number of parts. Can be suppressed.
(4) Since an air reservoir is formed at the upper part of the water surface, water does not flow back to the gas guiding means when the inside of the inner pot and the gas guiding means is depressurized.

The front view which shows typically the structure of the rice cooker which concerns on Embodiment 1 of this invention. The sectional view of side view showing typically the composition of the rice cooker concerning Embodiment 1 of the present invention. The top view which shows typically the water tank of the rice cooker shown in FIG. 1, and sectional drawing of a side view. The perspective view which shows typically the air reservoir of the rice cooker shown in FIG. FIG. 6 is a plan view, a sectional view in a side view, and a sectional view in a rear view of the air reservoir shown in FIG. 5. Sectional drawing which shows typically the structure of the rice cooker which concerns on Embodiment 2 of this invention.

[Embodiment 1: Air reservoir injection type]
1-5 is a block diagram which shows typically the structure of the rice cooker which concerns on Embodiment 1 of this invention. 1 is a front view, FIGS. 2A and 2B are sectional views in side view, FIG. 3A is a plan view of the water tank, and FIG. 3B is a sectional view in side view of the water tank. 4 is a perspective view of the air reservoir means, FIG. 5A is a plan view of the air reservoir means, FIG. 5B is a sectional view of the air reservoir means in a side view, and FIG. It is sectional drawing of the back view of an air reservoir means.

(rice cooker)
1 and 2, a rice cooker 100 includes a cup-shaped main body 20 having an open top, an inner pot 30 that is installed in the main body 20 and accommodates the rice to be cooked R, and is pivotally supported by the main body 20. And a lid 10 that covers the upper opening of the inner pot 30 so as to be freely opened and closed, a heating means (not shown) for heating the cooked rice R, and a control means (not shown) for controlling the heating means (not shown). ing.
Further, when the cooked rice R is heated (more precisely, when the water W is also heated together with the cooked rice R), the air A discharged from the inner pot 30 is induced and the cooked rice R and the water W are used. The gas guiding means 50 for inducing the generated water vapor V, the air reservoir means 70 into which the air A and the water vapor V induced by the gas guiding means 50 are injected, and the air reservoir means 70 are detachably installed, and are detachably attached to the main body 20. And a water tank 60 installed freely (can be pulled out).

(Gas guidance means)
The gas guiding means 50 includes a lid part gas flow path 51 formed in the lid body 10, a main body part gas flow path 52 formed in the main body 20, and a water tank part gas flow path 53 formed in the water tank 60. And an air reservoir means gas channel 54 fixed to the air reservoir means.
When the lid 10 closes the inner hook 30 by the rotation of the lid 10, the downstream side of the lid body gas channel 51 and the upstream side of the main body gas channel 52 communicate with each other, and the lid body 10 pushes down the main body gas flow path 52 so that the downstream end of the main body gas flow path 52 is inserted into the water tank 60 (more precisely, the water tank gas flow path 53 in FIG. 2). (See (a)).
At this time, the outer periphery on the downstream side of the main body gas flow path 52 and the inner periphery of the water tank gas flow path 53 abut in an airtight manner (sliding), and the downstream end of the water tank gas flow path 53 And the upstream end of the air reservoir means gas passage 54 are in substantially airtight contact with each other, so that a gas passage extending from the inner hook 30 to the air reservoir 70 is formed.

The main body 20 is provided with a biasing means (for example, a coil spring) 40 that pushes up the main body gas flow path 52 upward. Therefore, if the lid 10 is separated from the main body gas flow path 52 when the lid 10 opens the inner hook 30 by the rotation of the lid 10, the main body gas flow path 52 is biased by the biasing means 40. Lifted by.
If it does so, the downstream edge part of the main-body part gas flow path 52 will be extracted from the water tank 60 (To be exact, the water tank part gas flow path 53) (refer FIG.2 (b)). That is, in this state, the water tank 60 can be pulled out from the main body 20 in the horizontal direction (moved leftward in FIG. 2).

Note that the gas guiding means 50 may be provided with, for example, a “viscousness removing means” for removing “sticky” contained in the water vapor V in the lid part gas flow path 51. The gas guiding means 50 is provided with a gas release valve (same as a safety valve, not shown) that releases the internal gas to the atmosphere when the internal gas pressure (pressure of the water vapor V) exceeds a predetermined value. Has been.
Further, the downstream side of the lid part gas flow path 51 and the upstream side of the main body part gas flow path 52 may be connected by a joint means having flexibility.
Alternatively, a slope (conical shape) may be formed at the downstream end of the lid part gas flow path 51 so that the lid part gas flow path 51 is always pushed downward by the urging means 40. At this time, when the water tank 60 is pushed rearward of the main body 20, the downstream end of the lid part gas flow path 51 is pushed into the water tank part gas flow path 53. On the other hand, when the water tank 60 is pulled forward, The lid part gas flow path 51 may be lifted upward.

(water tank)
1 to 3, a water tank 60 includes a box-shaped water tank main body 61 having an upper opening, and a water tank lid (corresponding to a water tank top plate) that covers the opening of the water tank main body 61 in a substantially airtight manner. 62, and a water tank clue 64 formed on the water tank front surface 63 of the water tank body 61. And when the water tank 60 is pushed in from the front surface opening part 22 of the main body 20 to the rearmost position, the main body front surface 21 and the water tank front surface 63 form substantially the same surface, and the design property is ensured. The shape of the water tank clue 64 is not limited to that shown in the figure.

Further, the water tank lid 62 is formed with a through hole 65 having an inner flange 66, thereby forming a water tank portion gas flow path 53. An annular seal means 67 is disposed at the contact portion between the water tank main body 61 and the water tank lid 62.
The water tank 60 is made of a highly heat conductive material (for example, metal such as copper, copper alloy, aluminum, aluminum alloy, etc.), and a cooling fan (not shown) for cooling control means (not shown) is formed. It is arranged in the air passage. Therefore, when the water W stored in the water tank 60 is heated, heat dissipation is promoted.

(Air collecting means)
4 and 5, the air reservoir means 70 includes an air reservoir top plate 71, an air reservoir front side plate 72a, air reservoir lateral side plates 72b and 72d, and an air reservoir rear side plate 72c (collectively, “air reservoir side plate 72”). And a box having a lower surface opened. The air reservoir top plate 71 is inclined so as to become higher toward the joint with the air reservoir rear surface side plate 72c, and a slit-like gas injection port 75 is formed near the upper end of the air reservoir rear surface side plate 72c.
On the other hand, the air reservoir means gas flow path 54 is disposed in a substantially horizontal direction with the gas flow path vertical section 54a disposed in a substantially vertical direction, and has a thin thickness that penetrates the slit-like gas inlet 75 in the horizontal direction. The gas channel flat part 54c (having a slit-like gas inlet) and the gas channel flat transition part 54b connecting the gas channel vertical part 54a and the gas channel flat part 54c are formed. ing.

In addition, mounting air reservoir legs 73c and 73d are provided at the lower ends of the air reservoir lateral side plates 72b and 72d, and the lower end surface of the air reservoir side plate 72 is separated from the bottom surface of the water tank. That is, water can go back and forth between the air reservoir 70 and the water tank 60.
Further, the air reservoir top plate 71 is formed with minute holes 74 through which water W can pass and gas (generally referred to as air A and water vapor V, but not limited to “foam”) cannot pass. Yes. When the air reservoir 70 is installed in the water tank body 61 and the water tank lid 62 is closed, the upstream end of the air reservoir means gas channel 54 (the upstream end of the gas channel vertical portion 54a). The same) is in substantially airtight contact with the lower end of the inner flange 66 of the water tank lid 62.
Note that one or both of the air reservoir top plate 71 and the air reservoir side plate 72 are formed of a heat conductive material (for example, a metal such as copper, copper alloy, aluminum, aluminum alloy).

(Steam treatment)
Therefore, when rice cooking is started, the air A in the inner pot 30 guided by the gas guiding means 50 is injected into the air collecting means 70 from the gas flow path flat portion 54c (having a slit-like gas inlet). The air reservoir T is formed in a state where the upper portion is restrained by the air reservoir top plate 71. That is, the air reservoir portion T is formed in a wedge shape between the air reservoir top plate 71 and the water surface. When the rice cooking further proceeds, the water vapor V generated in the inner pot 30 is injected into the air reservoir T, and the water W in the water tank 60 is supplied via the air reservoir 70 or the air reservoir top plate 71. Cooled and condensed (condensed).
At this time, the water W (including condensed water) in the air reservoir top plate 71 flows out of the air reservoir portion 70 through the minute holes 74 and the gap between the air reservoir side plate 72 and the bottom surface of the water tank. To do. In addition, since a “water layer” having a predetermined thickness exists between the air pool top 71 and the water surface, convection occurs in the water layer.

That is, since the water vapor V is injected into the air reservoir T and not into the water W, bubbles (air bubbles and water vapor bubbles) are not formed in the water. No noise is generated.
Moreover, since the air reservoir means 70 is merely installed in the water tank 60, the configuration is simplified, the manufacturing cost is reduced, and cleaning after use is facilitated. Furthermore, the air confined in the inner pot and the generated water vapor are naturally (without being forcedly driven) injected into the air reservoir T due to the generated water vapor pressure, thereby minimizing the number of parts. Can be suppressed. Furthermore, since the downstream end of the gas guiding means 50 is located in the air reservoir T, the water W may flow backward to the gas guiding means 50 when the inner pot 30 and the inside of the gas guiding means 50 are depressurized. Absent.

(Other gas injection modes)
In the above, the gas flow path flat portion 54c, which is the downstream end of the air reservoir means gas flow path 54, penetrates through the slit-like gas inlet 75 of the air reservoir means 70 and enters the inside. However, the present invention is not limited to this, the air reservoir means gas channel 54 lacks the gas channel flat portion 54c, and the downstream end of the gas channel flat transition portion 54b surrounds the gas inlet 75. Then, it may be directly joined to the air pool rear side plate 72c.
Further, a gas inlet 75 is formed in the air reservoir top plate 71, and the air reservoir means gas flow channel 54 includes a gas flow channel vertical portion 54a disposed in a substantially vertical direction and a gas disposed in a substantially vertical direction. The downstream end of the gas flow flat transition portion 54b may be joined to the air pool top plate 71 in a state of surrounding the gas injection port 75. At this time, if the air reservoir top plate 71 is inclined so as to become higher toward the gas inlet 75, or a protruding portion is formed on the air reservoir top plate 71 so that the periphery of the gas inlet 75 becomes higher. If it is done, the air reservoir T is reliably formed from the initial stage when rice cooking is started.
Further, the air reservoir means gas flow path 54 is formed of an L-shaped tube body, and the horizontal portion of the tube body is disposed inside the air reservoir means 70 through the air reservoir lateral side plate 72b. A slit-like gas inlet may be formed in the tube axis direction of the horizontal part of the body.

[Embodiment 2: Water tank injection type]
FIG. 6: is a block diagram which shows typically the structure of the rice cooker which concerns on Embodiment 2 of this invention, Comprising: (a) is sectional drawing of side view, (b) is sectional drawing of planar view of a water tank. . In addition, the same code | symbol is attached | subjected to the part which is the same as that of Embodiment 1, or an equivalent part, and one part description is abbreviate | omitted.

(rice cooker)
In FIG. 6, a rice cooker 200 has a cup-shaped main body 20 with an open top, an inner pot 30 that is installed in the main body 20 and stores the rice to be cooked R, and is pivotally supported by the main body 20. The lid 10 covers the upper opening of the pot 30 so that it can be opened and closed, the heating means (not shown) for heating the cooked rice R, and the control means (not shown) for controlling the heating means (not shown).
Further, when the cooked rice R is heated (more precisely, when the water W is also heated together with the cooked rice R), the air A discharged from the inner pot 30 is induced and the cooked rice R and the water W are used. Gas induction means 250 for inducing the generated water vapor V, and a water tank 260 into which air A and water vapor V induced by the gas induction means 250 are injected.

(Gas guidance means)
The gas guiding means 250 is formed at the lid body gas flow path 251 formed in the lid body 10, the main body gas flow path 252 formed in the main body 20, and the downstream end of the main body gas flow path 252. A gas flow path expanding portion 253 and a gas flow path flange 254 formed at the downstream end of the gas flow path expanding portion 253 are provided. That is, the gas flow path flange 254 is installed so as to surround the slit-shaped gas outlet 255 formed at the downstream end of the gas flow path expanding portion 253. The downstream side of the lid part gas flow path 251 and the upstream side of the main body part gas flow path 252 are connected by a flexible pipe joint (not shown). Further, the gas flow path flange 254 is inclined so as to become higher toward the front surface of the main body 20.
The shape and the like of the gas guiding means 250 are not limited to those shown in the figure, and a “sticking means”, a gas release valve, and the like may be appropriately installed.

(water tank)
In FIG. 6, the water tank 260 includes a box-shaped water tank main body 261 having an upper opening, a water tank lid (corresponding to a water tank top plate) 262 that substantially airtightly covers the opening of the water tank main body 261, A water tank clue 264 formed on the water tank front surface 263 of the water tank main body 61. And when the water tank 260 is pushed into the predetermined position from the front opening part 22 of the main body 20, the main body front surface 21 and the water tank front surface 263 form substantially the same surface, so that the design is ensured. The shape of the water tank clue 264 is not limited to that shown in the figure.

Furthermore, the water tank lid 262 is inclined so that the front side becomes higher toward one side, and has a slit-like through-hole (hereinafter referred to as “gas inlet”) 265 in a substantially horizontal direction (substantially parallel to the front surface 21 of the main body). Is formed.
When the water tank 260 is installed at a predetermined position of the main body 20, the upper surface of the water tank lid 262 and the lower surface of the gas flow path flange 254 of the gas guiding means 250 abut in a substantially airtight manner, and the former gas The inlet 265 communicates with the latter gas outlet 255. A sealing means may be disposed between the upper surface of the former and the lower surface of the latter.
The water tank 60 is made of a highly heat conductive material (for example, metal such as copper, copper alloy, aluminum, aluminum alloy, etc.), and a cooling fan (not shown) for cooling control means (not shown) is formed. It is arranged in the air passage. Therefore, when the water W stored in the water tank 60 is heated, heat dissipation is promoted.

(Steam treatment)
Therefore, when rice cooking is started, the air A in the inner pot 30 and the generated water vapor V induced by the gas guiding means 250 pass through the gas outlet 255 and the gas inlet 265 and form in the upper part of the water tank 260. Is injected into the air reservoir T. The injected water vapor V is cooled and condensed (condensed) by the water W in the water tank 260.

That is, since the water vapor V is injected into the air reservoir T and not into the water W, bubbles (air bubbles and water vapor bubbles) are not formed in the water. No noise is generated.
In addition, since the water tank 60 has a very simple configuration, the manufacturing cost is reduced and cleaning after use becomes easy. Furthermore, the air confined in the inner pot and the generated water vapor are naturally (without being forcedly driven) injected into the air reservoir T due to the generated water vapor pressure, thereby minimizing the number of parts. Can be suppressed. Further, since the downstream end portion of the gas guiding means 250 is located at the upper part of the water tank 260 (same as the air reservoir T), the gas guiding means when the inner pot 30 and the gas guiding means 250 are depressurized. No water W flows back to 50.

(Other gas injection modes)
In the above, the gas flow path flange 254 and the water tank lid 262 are inclined, but the present invention is not limited to this, and both may be horizontal. Further, the water tank 260 may be disposed in the lower part of the main body 20 (the same as the lower part of the inner hook 30), or the main body gas flow path 252 may be disposed in a substantially vertical direction.
Furthermore, you may make it not have the air accumulation part T at the time of the start of cooking rice. At this time, since the lower surface of the water tank lid 262 is in contact with the water W at the start of rice cooking, an auxiliary water tank is provided to catch the water pushed out by the formation of the air reservoir T, and is extracted from near the bottom surface of the water tank 260. An overflow means may be provided so that fresh water flows into the auxiliary water tank. The auxiliary water tank is a part of the water tank and may be a predetermined range formed by partitioning with a weir.

  From the above, the rice cooker of the present invention has a simple configuration and injects the generated water vapor into the air reservoir formed on the water surface to condense (condensate). Since no noise is generated, it can be widely used for various devices that generate water vapor for purposes other than rice cooking and cooking, together with various rice cookers and cookers for home use or business use.

  10: Lid, 20: Main body, 21: Front of main body, 22: Front opening, 30: Inner hook, 40: Energizing means, 50: Gas guiding means, 51: Gas flow path for lid, 52: Main body Gas channel, 53: Water tank unit gas channel, 54: Air reservoir means gas channel, 54a: Gas channel vertical part, 54b: Gas channel flat transition part, 54c: Gas channel flat part, 60: Water tank, 61: Water tank body, 62: Water tank lid, 63: Water tank front surface, 65: Through hole, 66: Inner flange, 67: Sealing means, 70: Air collecting means, 71: Air collecting top plate, 72 : Air reservoir side plate, 72a: Air reservoir front side plate, 72b: Air reservoir lateral side plate, 72c: Air reservoir rear side plate, 72d: Air reservoir lateral side plate, 73c: Air reservoir lateral plate, 73c: Air reservoir leg, 73d: Air reservoir leg, 74: Minute Hole 75: gas inlet 10 : Rice cooker (Embodiment 1), 200: Rice cooker (Embodiment 2), 250: Gas guiding means, 251: Lid gas passage, 252: Main body gas passage, 253: Gas passage enlargement Part, 254: gas flow path flange, 255: gas outlet, 260: water tank, 261: water tank body, 262: water tank lid, 263: water tank front, 265: gas inlet.

Claims (20)

An inner pot for storing cooked rice,
Heating means for heating the cooked rice;
A main body on which the inner pot is mounted and equipped with the heating means;
A lid that is installed on the main body and covers the upper opening of the inner hook so as to be freely opened and closed;
Gas induction means for inducing air discharged from the inner pot and steam generated from the cooked rice when the cooked rice is heated,
An air reservoir means into which the air and steam induced by the gas guiding means are injected;
A water tank in which water is stored and which stores the air retaining means;
Have
The air reservoir means is
In a state where water is stored in the water tank, the water tank is provided at a position where a water layer having a predetermined height is formed above the air reservoir.
When rice cooking is started, an air reservoir is formed in the air reservoir by the air injected through the gas guiding device. The convection of water is promoted in a range of the water layer of the predetermined height formed above the air reservoir means in a state where water is stored in the water tank. Rice cooker. The rice cooker according to claim 1 or 2, wherein the air reservoir is formed with micro holes through which water can pass but gas cannot pass. The rice cooker according to any one of claims 1 to 3, wherein a gas injection port through which air and steam pass is formed in a part of a side surface of the air reservoir means. The rice cooker according to claim 4, wherein the air reservoir means is inclined so as to become higher toward the gas inlet. 6. The rice cooker according to claim 4, wherein a range close to the gas injection port protrudes upward in the air reservoir. The rice cooker according to any one of claims 4 to 6, wherein the gas inlet has a slit shape that is long in a horizontal direction. The rice cooker according to claim 1 or 2, wherein a gas injection port through which air and steam pass is formed by a part of a top surface of the air reservoir means. The rice cooker according to claim 8, wherein the air reservoir is inclined so as to become higher toward the gas inlet. 10. The rice cooker according to claim 8, wherein the air reservoir has a portion in which the gas injection port is formed projecting upward. The rice cooker according to claim 1 or 2, wherein a gas injection pipe penetrating inside the air reservoir means is installed, and a tip of the gas injection pipe is located in the vicinity of the top surface of the air reservoir means. The rice cooker according to claim 11, wherein a top surface of the air reservoir means is inclined so as to become higher toward a position corresponding to a position of a tip of the gas injection pipe. The rice cooker according to claim 11 or 12, wherein a position corresponding to a position of a tip of the gas injection pipe protrudes upward from the top surface of the air collecting means. The cross section of the front-end | tip opening part of the said gas injection pipe is a slit shape long in a horizontal direction. The rice cooker in any one of Claims 11 thru | or 13 characterized by the above-mentioned. The rice cooker according to any one of claims 1 to 14, wherein the air reservoir is detachably installed in the water tank. The rice cooker according to any one of claims 1 to 15, wherein the air retaining means is formed of a highly heat conductive material. The gas guiding means includes a lid part gas passage formed in the lid, a body part gas passage formed in the body, and air stored in the water tank fixed to the air reservoir. A reservoir means gas channel, and
When the lid closes the inner hook, the downstream side of the lid part gas flow path communicates with the upstream side of the main body part gas flow path, and the lid pushes down the main body part gas flow path. Thus, the downstream end of the main body gas flow path is inserted into the water tank, and the downstream side of the main body gas flow path communicates with the air reservoir means gas flow path. Item 17. A rice cooker according to any one of Items 1 to 16. The rice cooker according to any one of claims 1 to 17, wherein the water tank is formed of a heat-conductive material. The rice cooker according to any one of claims 1 to 18, wherein the water tank is detachably installed on the main body. Heating activation means for activating the heating means;
A blower fan that forms an air passage for cooling the heating starter;
Have
The rice cooker according to any one of claims 1 to 19, wherein the water tank is disposed in the air passage.

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