JP2000296055A - rice cooker - Google Patents

Abstract

(57) [Summary] [Problem] To reduce excessive moisture in a pot, suppress the drunkenness and stickiness of rice, and improve the condition of rice during warming. SOLUTION: An adsorbent 25 for adsorbing water such as activated carbon or silica gel and a blower 26 are provided inside a lid 5,
The inside of the pot 2 and the blower 26, the blower 26 and the adsorbent 25, and the adsorbent 25 and the pot 2 communicate with each other through the communication passage 27. When the rice cooking is completed, the blower 26 is operated to feed the moist air in the pot 2 to the adsorbent 25, and the moisture is absorbed by the adsorbent 25 and the dry air returns to the pot 2, so that the pot 2 Excess water can be removed, dew condensation on the side surface of the pot 2 and the heat sink unit 12 can be prevented, the stickiness of the rice can be suppressed, and the state of the rice at the time of warming can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice cooker used for general household or business use.

[0002]

2. Description of the Related Art In a conventional rice cooker, when the rice is cooked and the temperature is maintained, the power supply to the heating means is turned off, and the temperature is lowered to a predetermined temperature to maintain the temperature.
In the case of F, the heating means is intermittently energized to prevent problems such as excess water evaporating and condensing on the lid and the side of the pot, and the condensed water dripping and sticking rice. I was

[0003]

However, in the above-mentioned rice cooker, since the excess water is prevented from adhering to the pot or the radiator plate by heating the heating means, the rice is heated more than necessary and the rice is deteriorated. In addition, the discoloration becomes remarkable, and the excess water in the pot cannot be forcibly discharged to the outside by heating. There was a problem that it was easy to do.

[0004] The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to reduce excessive moisture in a pot, suppress the dampness and stickiness of rice, and improve the state of the rice during warming.

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a pot removably stored in a main body, a heating means for heating the pan, and a top opening of the main body. A lid, a communication path communicating with the inside of the pot is provided in the lid, and an adsorbent is disposed in the communication path.

[0006]

According to the first aspect of the present invention, the adsorbent can adsorb excess water in the pot during heat retention.

According to the second aspect of the present invention, the opening / closing valve is opened only when necessary, and the excess water in the pot can be adsorbed by the adsorbent.

According to the third aspect of the present invention, the moist air in the pot can be efficiently sent to the adsorbent.

According to the fourth aspect of the present invention, the moisture of the adsorbent can be removed by heating.

According to the fifth aspect of the present invention, the adsorbent heating means for heating the adsorbent becomes unnecessary.

[0011]

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

In FIG. 1 and FIG. 2, a main body 1 has an opening at an upper surface, a protection frame 3 serving as a storage portion for a pot 2 is provided inside the main body 1, and a heating means is provided outside the protection frame 3. An induction coil 4 is provided.

Reference numeral 5 denotes a lid for covering the upper opening of the main body 1. The lid 5 is rotatable via a pin 8 to a hinge member 7 integrally formed on an upper part of an upper frame 6 constituting the upper part of the main body 1. Supported. 9 is an outer lid cover, and the outer lid cover 9 is a lid 5
Is fixed inside. A radiator plate 12 having a radiator plate 10 as a heating element and a pot packing 11 is detachably attached to the outer cover 9.
A lid induction coil 13, which is one of the heat retaining and heating means supported by the outer lid cover 9, is located at an upper part of the reference numeral 0. The heat radiation plate 10 generates heat by the electromagnetic action of the lid induction coil 13.

When the lid 5 is closed, the pan packing 11 is pressed against the flange 14 of the pan 2 to hermetically close the pan 2.

Reference numeral 15 denotes a steam cylinder detachably provided on the lid 5. A float 16 having magnetic properties is provided below the steam cylinder 15 so as to be movable when cooking rice. SW at a position facing the float 16 inside
17 are arranged. When the cat reaches the float 16, the float 16 moves and the reed SW 17 detects it.
The output to the induction coil 4, which is a heating means, is controlled to prevent squirt from leaking to the outside. Further, it is configured to move when the lid 5 is opened and closed, and also serves as detection of opening and closing of the lid 5.

The steam cylinder 15 is provided with a steam valve 19 so as to close an internal steam port 18.
A core plate 21 provided with a first magnet 20 is provided on the outer peripheral flange portion so as to be vertically movable, and the steam valve 19 is raised when the core plate 21 is raised. On the other hand, a steam valve drive unit 22 is provided inside the lid 5, and the first magnet 20
Rotatable rotor 2 in which a second magnet 23 oriented so as to have a different polarity from the first magnet 20 is disposed at a position facing the first magnet 20.
4 and a steam valve drive motor 25 for rotating the rotor 24. This steam valve drive motor 25
Is controlled to rotate the rotor 24 so that the second magnet 23 and the first magnet 20 face each other.
The core plate 21 is raised by the repulsive force of the third and first magnets 20, the steam valve 19 is pulled up, and the steam port 18 is opened. The steam port 18 is freely opened and closed, and the internal pressure during rice cooking is reduced. Has been adjusted.

Further, an adsorbent 25 for adsorbing water such as activated carbon or silica gel and a blower 26 are provided inside the lid 5, and the inside of the pot 2 and the blower 26, the blower 26 and the adsorbent 25, and the adsorbent 25 and the pot The insides of the two communicate with each other through communication passages 27. The on-off valve 28 is provided on the heat sink unit 12 with the spring 2.
In 9, the outlet of the communication path 27 on the pot 2 side is urged in a direction to close the opening and closing valve packing 30. A valve lever 31 is attached to the outer lid cover 9 above the on-off valve 28, and the outlet of the communication path 27 on the pot 2 side can be opened and closed by rotation of a cam 33 provided on the on-off valve drive motor 32. The adsorbent 25 is arranged near the lid induction coil 13, and a heating plate 34 for heating the adsorbent is provided between the lid induction coil 13 and the adsorbent 25.

A heating induction coil 35 heats the upper part of the pot 2 so that the temperature of the rice during the heating is not uneven. The heat retaining induction coil 35 and the lid induction coil 13 constitute a heat retaining / heating means.

In the rice cooker constructed as described above, when the rice cooking is completed, the open / close valve 28 is driven by the open / close valve driving motor 32.
Is opened, the blower 26 is operated to feed the moist air in the pot 2 to the adsorbent 25, and the moisture is absorbed by the adsorbent 25 and the dry air returns to the pot 2, so that the excess air in the pot 2 Moisture can be removed, dew condensation on the side surface of the pot 2 and the radiator plate unit 12 can be prevented, the stickiness of the rice can be suppressed, and the state of the rice at the time of heat retention can be improved. In other words, the same effect can be obtained by using rice put in a wooden wrap as rice that absorbs excess water from the rice and becomes non-sticky rice. At this time, if the steam port 18 is opened, the steam port 1 can be opened.
Excess water evaporates also from 8, and the effect increases. Then, when the adsorption of the excess moisture is completed, the operation of the blower 26 is stopped, the on-off valve 28 is closed, the air in the pan 2 is prevented from flowing to the adsorbent 25, and the steam port 18 is also closed. Thereby, the inside of the pan 2 is not dried more than necessary, and the heat retention state is further improved.

The adsorbent 25, such as activated carbon or silica gel, loses its adsorbing performance if too much water is adsorbed.
Can be regenerated by heating to remove moisture. In the present embodiment, the heating plate 34 is heated by the lid induction coil 13 to heat the adsorbent 25.

[0021] When the temperature is kept for a long time, the rice usually dries gradually. Therefore, when the rice is dried, the on-off valve 28 is opened to heat the adsorbent 25 and the adsorbent 2 is heated.
When the regeneration of 5 is performed, the moisture released from the adsorbent 25 returns to the pot 2 and can prevent the rice from drying.

Furthermore, since the adsorbent 25 such as activated carbon can also adsorb odors, the odor of rice generated by deterioration due to heat retention can be reduced.

In the present embodiment, a method using induction heating has been described as a heating means, but the same applies when a sheathed heater, a halogen heater, or the like is used.

[0024]

As described above, according to the first aspect of the present invention, the adsorbent adsorbs excess water in the pot during heat retention,
It can reduce the stickiness of rice and improve the state of rice during warming.

According to the second aspect of the present invention, the opening / closing valve can be opened only when necessary to allow the excess water in the pot to be adsorbed by the adsorbent. In addition to being able to fully demonstrate the capacity of the adsorbent when needed, it can also optimally adsorb moisture by controlling the open / close valve even when keeping warm, without absorbing too much moisture and drying the rice, The condition of the rice improves.

According to the third aspect of the present invention, the moist air in the pot can be efficiently sent to the adsorbent, and the adsorption of excess water can be performed quickly.

According to the fourth aspect of the present invention, it is possible to regenerate an adsorbent having a reduced adsorption capacity by adsorbing moisture by heating to remove moisture of the adsorbent.

According to the fifth aspect of the present invention, an adsorbent heating means for heating the adsorbent is not required, so that a simple and inexpensive configuration can be achieved.

[Brief description of the drawings]

FIG. 1 is a sectional view of a rice cooker according to one embodiment of the present invention.

FIG. 2 is an enlarged view of a main part of the rice cooker.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Pot 5 Lid 1 Lid induction coil 25 Adsorbent 26 Blower 27 Communication port 28 On-off valve

Claims (5)

[Claims] 1. A pan removably stored in a main body, a heating means for heating the pan, and a lid for covering an upper opening of the main body, wherein the lid communicates with the inside of the pan. A rice cooker provided with a communication path, wherein an adsorbent is disposed in the communication path. 2. The rice cooker according to claim 1, further comprising an on-off valve for opening and closing a communication passage between the adsorbent and the inside of the pot. 3. The rice cooker according to claim 1, further comprising a blower for sending air in the pot to the adsorbent. 4. The rice cooker according to claim 1, further comprising adsorbent heating means for heating the adsorbent. 5. The rice cooker according to claim 1, further comprising a heat-retaining heating means for keeping the heat, wherein the heat-retaining and heating means heats the adsorbent.