JP2002306324A - Rice cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a household rice cooker which can deliciously cook rice at a stretch by strong heating power and prevent boiling overflow. SOLUTION: This rice cooker has an Oneba (viscous stuff) storing volume part 15 and an Oneba detecting volume part 14 to detect Oneba reaching over the capacity of the Oneba storing volume part 15. Heat quantity for a pot 12 is changed to avoid sacrificing the taste of rice by over-controlling heat quantity as usual and to prevent overflow by excessive water addition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a rice cooker mainly used at home.

[0002]

2. Description of the Related Art In recent years, rice cookers which have been widely used have the following forms, for example.

The configuration of a conventional rice cooker will be described below with reference to the drawings.

As shown in FIG. 5, there is a heating means 103 for heating a pot 102 housed in a main body 101, and a heating control means 104 for controlling the power supply to the heating means 103 is disposed outside the heating means 103. On top of pot 102, cover 10
5 is pivotally supported so as to be openable and closable, and the steam port 106 penetrates. The steam outlet 106 incorporates a need detection means 107.

[0005] Heating control during rice cooking in this configuration will be described. When the rice cooking is started and the rice boiled in time, a foamy rice boiled from the inside of the pot 102 and the steam port 10
6 and try to spill outside. The need detection means 107 detects the spill of the needs. At this time, the heating control unit 104 stops heating the heating unit 103 for a certain time. The boiling inside the pot 102 calms down,
The inner pressure drops, so
Pulled back in. Then, the heating unit 103 starts heating again.

[0006] By repeating this operation, rice is cooked by continuously giving the maximum amount of heating within a range where the rice is not spilled out to the outside. In such a structure, the detection means 107 is normally set to a level at which almost no detection operation is performed.

[0007]

However, in the above-mentioned rice cooker, the rice generated in the pot 102 has a steam port 10.
6, it is easy to reach the detection means 107 directly if you need it.
If the user needs more than the set value that can occur in the normal use range due to the combination of the degree of water addition and the voltage variation, etc., the extraneous tongue is added to the steam port 106 together with the steam. In this case, the rice easily reaches the rice detecting means 107, and when the rice is detected, the heating is stopped, and it becomes impossible to maintain the heating boiling during the cooking of rice, so that the taste may drop.

[0008] The present invention solves the above-mentioned problems, and in the case of ordinary rice cooking, even if there is a slight change in conditions, the rice does not reach the detection volume part and the rice is cooked while maintaining a strong heating amount. It is a first object of the present invention to obtain a means for suppressing rice spills and for cooking rice firmly even if the user varies the degree of water addition and the like.

[0009] A second object is to make it difficult for the tongue to enter the sensing capacity portion and to surely return the entered tongue to the pot.

A third object of the present invention is to reduce the extent of dirt caused by use to a minimum and to facilitate maintenance of parts.

A fourth object is to obtain the same effect even when the opening area of the lid is small.

A fifth object is that even if the height of the lid is kept low,
A similar effect can be obtained.

[0013]

In order to achieve the first object, the present invention provides a rice cooker body, a pot removably housed in the rice cooker body, and a heating means for heating the pot. Heating control means for controlling the amount of heat applied to the heating means; an openable and closable lid for covering the upper opening of the main body; and a storage volume provided on the lid and formed in communication with the pan. Part, the bed storage volume section is formed separately, and the bed detection volume section that detects the presence of the bed that has passed through the bed storage section before spilling out to the outside, Prepare near the storage area
The heating control means changes the heating amount of the heating means when it detects that the required amount of water exceeds the capacity of the required storage capacity part and reaches the detection capacity part.

In order to achieve the second object, according to the present invention, a reflux valve for allowing reflux of the rice to flow into the pot is arranged in the rice detection volume or the rice storage volume. It becomes.

In order to achieve the third object, the present invention is characterized in that the storage volume part and the detection volume part are integrally formed and arranged detachably from the lid.

In order to achieve the fourth object, the present invention is characterized in that the storage volume part and the detection volume part are arranged vertically.

In order to achieve the fifth object, according to the present invention, the storage chamber and the detection chamber are arranged side by side in parallel.

[0018]

According to the first aspect of the present invention, the detection volume is provided outside the storage volume, so that even if there is a variation in the normal use, the storage is not necessary. It stays in the volume, it does not reach the volume detection area, so it is not necessary to adjust the heating power by detecting the needs, it can cook at a stroke with stronger heat than before, and it is possible to cook delicious rice and the amount of water Even when the number of spills increases, spills can be suppressed.

According to the second aspect of the present invention, since the recycle valve for the remnant storage volume is provided in the remnant detection volume, even if the remnant is about to spill out to the outside, the pot remains in the pot. Can be surely pulled back.

According to the third aspect of the present invention, when the care is required, one compact part is detached from the main body to easily wash off the body when the care is required because the storage area and the detection volume are integrally formed. Dirt can be washed away.

According to the fourth aspect of the present invention, since the storage volume portion and the detection volume portion are arranged vertically, the opening area can be reduced.

According to the fifth aspect of the present invention, the same storage effect can be obtained even if the lid has no thickness because the storage volume portion and the detection volume portion are arranged in the lateral direction. Become.

[0023]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a partial sectional view of a rice cooker main body, and FIGS. 2 to 4 are enlarged sectional views of a steam port.

First, in FIGS. 1 and 2, the main body 11
The upper surface is open, and a pot 12 is detachably accommodated inside the main body 11. A lid 13 that can be opened and closed is pivotally supported above the pot 12.

At the vapor port of the lid 13, a lower storage volume 14 and an upper detection volume 15 are block-formed as one part, and are detachably attached to the lid 13. Also, when removing dirt due to use, the structure is such that this part can be further divided and the whole part can be washed. In the rice sensing volume 15, there is a float 16 containing, for example, a magnetic material and set to be lifted by the animal.
A reed switch 17 for detecting a change in magnetic force due to the floating of the float body 16 is provided at a position facing the. A reflux valve 18 is provided on each of the bottoms of the storage pool 14 and the detection volume 15.

Further, on the pot 12 side of the lid 13,
9 is detachably mounted, and when removing dirt at the time of use, all the units can be washed by removing the unit including the heat radiating plate 19 and the storage area 14.

On the other hand, inside the main body 11, a heating means 20 for heating the pot 12 and a heating control means 21 for freely controlling the energization of heating to the heating means 20 are provided.

In the rice cooker having the above configuration, a state during rice cooking and a control operation will be described.

Cooking rice is started, and the inside of the pot 12 starts to boil. At this time, when rice is cooked within the range of changes that can occur in normal use, such as the quality of rice every year, the condition of rice washing, the difference in cooked rice menu, the degree of water adjustment by the user, and the voltage variation, the rice and water A different situation occurs when the amount of water is wrong or when the amount of water is particularly increased to cook soft rice.

First, when cooking is performed within the range of possible variations, bubbles generated inside the pot 12 due to boiling, that is, rice mustard, first pass through the holes provided in the heat radiating plate 18 together with the steam. It escapes into the space between the storage area 14 and the storage area. A certain amount of tonnage is separated from the steam and stays in this space, but the remaining tonnage and steam pass through a cylinder provided in the tongue accumulation volume 14 and enter the tongue accumulation volume 14. Then, the steam temporarily forms a buffer zone in the storage pool 14 and the momentum is weakened. Therefore, most of the steam contained in the steam is dropped and stored at the bottom of the storage 14 by gravity. . The steam, together with the remaining small amount of foam, still escapes to the sensing volume 15. At this time, only a small amount of oil enters the sensing volume 15, and usually does not accumulate here. Also, the stored rice will evaporate at the end of rice cooking. Therefore, since the float 16 does not float up due to the squid and the inflow of the squid is not detected, the heating control means 1
In No. 8, the heating is continued without any additional adjustment of the heating level and cooking is continued.

In order to cook rice deliciously, it is advisable to cook rice at once without adjusting the amount of heating to prevent spilling. In particular, if you do not continue to apply strong heating after boiling, you will not be able to cook hard and firm rice. Therefore, continuing to apply strong heating without spilling over means that a means for freely cooking rice can be obtained as desired. Also, the rice collected in the storage pool 14 is heated, the heating is weakened, and when the internal pressure in the pan 12 is reduced, or when the storage is more than a certain amount, the reflux valve 18 is pushed down by its own weight. Until the cooking is completed, the rice is pulled back into the pot 12 again.

On the other hand, the operation when the amount of water for rice is particularly large for some reason will be described. At this time, the squirt that has been blown out cannot be accommodated only in the storage collecting volume 14 alone, but the overflowing squirt enters the needed detection volume 15 together with the steam. At this time, when the amount of the entering waste falls below a certain level, the float 16 does not move, but does not move to the outside because it does not accumulate in the sensing volume 15 and there is no fear of spilling out. When the sensing volume 15 begins to fill with the sleep, the float 16
Emerges. This movement is detected by the reed switch 17 and information is transmitted to the heating control means 20. At this time,
The heating control means 21 immediately stops the heating of the heating means 20 and calms the boiling in the pan 12. By this operation, it is possible to prevent the towel detecting means 15 from spilling out to the outside. Then, as the internal pressure in the pan 12 decreases, the collected tobacco is drawn back into the pan 12 through the reflux valve 18.

The heating control means 20 determines that the cooked rice is
You will recognize that you are cooking with a different amount of water than usual, lower the heating level afterwards, suppress the momentum of boiling due to heating, cook slowly and carefully with a weak heat power enough to suppress the momentum that springs out To switch. However, if it is necessary to further detect the need, the heating level may be further reduced.

By the way, the configuration shown in FIGS. 1 and 2 has been described so far, but other configurations such as those shown in FIGS. 3 and 4 are also conceivable. In the configuration shown in FIG.
The steam that has passed through the holes enters the pool 13 through holes located above the side surfaces of the pool 14. The cattle accumulates at the bottom, and steam flows from the upper cylinder to the cattle detection volume 15. Other operations are the same as those of the embodiment shown in FIG. In the configuration shown in FIG.
The bed storage volume is constituted by the inner wall of the lid 13, a heat radiating plate 19, a tube through which steam passes, and a steam cap 22 having only a function as a reflux valve. Attached alone. The operation of this configuration is the same as that of the embodiment shown in FIG.

In this embodiment, as a means for detecting the need, the movement of the float 16 is detected by the reed switch 17, but other various means such as those using an optical sensor or an electrode may be used. Can be considered.

Although it has been described that the heating level is changed by the heating control means 21 after detecting the invading of the rice noodles, the heating amount may be directly controlled according to the detection of the rice noodle detecting means 15 until the rice is cooked. It goes without saying that a similar effect can be obtained.

Next, a second embodiment will be described with reference to FIGS. Here, the basic configuration of the main body is the same as in the first embodiment, and the state of heating during rice cooking is also the same. FIG.
FIG. 3 is a partially enlarged view of the vicinity of a steam port. In FIG. 5 a, the needy sensing volume 23 and the needy storage volume 24 are arranged adjacent to each other, and are detachable from the lid 25. At this time, a packing 26 for attaching the integral part is provided. Needle detection volume 23
Float 27 that rises and falls due to the inflow of cat
Contains.

There is a recirculation valve 28 between the rice sensing volume 23 and the pan 12. Pot 12 below reflux valve 28
A heat radiating plate 29 is detachably mounted between the two. The movement of steam and rice during cooking in this configuration will be described. In other words, the storage volume 2
The steam and squirt that entered 4 dropped the sneeze to the bottom,
The steam and the remaining small amount of tongue flow into the adjacent tongue detection volume 23 from the gap opened upward. Thereafter, as in the first embodiment, when rice is cooked with a normal amount of water, the float 27 terminates the rice cooking without detecting the inflow of rice cake. On the other hand, when the amount of water is large, for example, the inflow of rice is detected, and the heating control unit 21 temporarily stops heating the heating unit 20. At this point, the internal pressure in the pan 12 decreases, and the soda that has entered the soggy detection volume 23 is returned to the pan 12 through the gap of the reflux valve 28.

Incidentally, in the present embodiment, it has been described that the required detection volume 23 and the required storage volume 24 are arranged side by side. However, a configuration as shown in FIGS. 5B and 5C is also conceivable. Here, FIGS. 5B and 5C are cross-sectional views of the configuration when the steam port is viewed from above. That is, FIG. 5B encloses the outer periphery of the storage volume portion 24 with the sensing volume 23, and FIG. 5C encloses the outer circumference portion of the sensing volume 23 with the accumulation volume portion 24. . In each case, the operation during cooking rice and the flow of steam and rice are the same.

In this embodiment, as in the third embodiment, the recirculation valve 28 is set between the sensing volume 23 and the accumulation volume 24. The location is not particularly specified as long as it is configured such that the tobacco that has penetrated into the pan flows back into the pan 12.

[0042]

As described above, according to the first aspect of the present invention, ordinary rice is cooked at once with strong heat, and when the amount of water is increased in order to cook porridge or especially soft rice, heating is not performed. You can cook slowly and carefully.

According to the second aspect of the invention, it is possible to stably pull the tobacco back into the pot under conditions that normally prevent the tomb from passing through and the tomb is easily discharged to the outside.

Further, according to the third aspect of the present invention, dirt attached to a bed or the like can be removed from the main body and easily washed.

Further, according to the fourth aspect of the present invention, it is possible to provide a compact rice cooker in which the opening area of the steam port is small.

Further, according to the fifth aspect of the present invention, a high effect can be obtained even if the thickness of the lid is reduced and the height is suppressed.

[Brief description of the drawings]

FIG. 1 is a partial sectional view of a rice cooker showing one embodiment of the present invention.

FIG. 2 is a partially enlarged view of the rice cooker showing a steam port of the rice cooker.

FIG. 3 is a partially enlarged view of the rice cooker showing a steam port of the rice cooker.

FIG. 4 is a partially enlarged view of the rice cooker showing a steam port of the rice cooker.

FIG. 5 is a partially enlarged view of the rice cooker showing a steam port of the rice cooker.

FIG. 6 is a partial sectional view of a rice cooker showing a conventional embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Main body 12 Pot 13,25 Lid 14,24 Bed storage volume 15,23 Bed detection volume 20 Heating means 21 Heat control means 18,27 Reflux valve

 ──────────────────────────────────────────────────の Continued on the front page F term (reference) 4B055 AA03 BA35 BA38 BA53 BA56 CA22 CB03 CC28 CC40

Claims (5)

[Claims] 1. A pot removably housed in a rice cooker main body, heating means for heating the pan, heating control means for heating and controlling an amount of heating to the heating means, and an upper opening of the main body A lid that can be opened and closed, a lid storage volume provided on the lid and formed in communication with the pan, and a storage pool formed separately from the storage pool, and the storage pool A sleep detecting volume portion for detecting the presence of the squirt passing through the portion before spilling out to the outside is provided in proximity to the slop pool volume portion, and the capacity of the slop pool volume portion must be exceeded. A rice cooker in which the heating control means changes the amount of heating of the heating means when detecting the need to reach the detection volume. 2. The rice cooker according to claim 1, wherein a reflux valve that allows reflux of the rice into the pot is arranged in the rice detection volume or the rice pool volume. 3. The rice cooker according to claim 1, wherein the storage pool portion and the detection volume portion are integrally formed and are detachably disposed from the lid. 4. The one-way storage capacity part and the one-side detection capacity part are arranged vertically.
A rice cooker according to the item. 5. The rice cooker according to claim 1, wherein the storage pool portion and the detection volume portion are arranged side by side in an adjacent direction.