JP3826070B2 - rice cooker - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rice cooker.
[0002]
[Prior art]
The rice cooker accommodates a cooking pan filled with rice and water in the rice cooker body, closes the upper opening with a lid provided rotatably on the rice cooker body, and heats the cooking pan. The rice cooking operation is performed by controlling (induction heating coil, resistance wire heater, etc.).
[0003]
In addition, with increasing health consciousness, it has become possible to cook germinated brown rice. This germinated brown rice is germinated brown rice and is softer than brown rice and excellent in health promotion. Germinated brown rice is available in dry and wet types, and generally more dry types are commercially available.
[0004]
When cooking germinated brown rice, in conventional rice cookers, rice is mixed with white rice or cooked using only germinated brown rice.
[0005]
[Problems to be solved by the invention]
However, when dry-type germinated brown rice is cooked with the rice cooker, there is a problem that the water put in the cooking pan is absorbed and the rice cannot be cooked normally. In particular, when rice is soaked in water at the time of timer cooking and 2-3 hours have elapsed, the germinated brown rice will almost absorb water in the cooking pan.
[0006]
Then, this invention makes it a subject to provide the rice cooker which can prevent the failure of the rice cooking by absorbing too much water when cooking germinated brown rice.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, the rice cooker of the present invention is:
A cooking pan, a main body that accommodates the cooking pan, a heating unit that heats the cooking pan, and a control unit that controls the heating unit to execute a registered rice cooking operation or a reserved rice cooking operation. In rice cooker,
Established a germinated brown rice cooking menu for cooking dry-type germinated brown rice,
The control means does not perform the reserved rice cooking operation when the germinated brown rice rice cooking menu is selected and the reserved rice cooking operation is selected .
[0008]
According to the rice cooker, a dedicated germinated brown rice rice cooking menu for cooking germinated brown rice is provided, and when the germinating brown rice rice menu is selected, the control means does not perform a reserved rice cooking operation. It is possible to avoid being left immersed in water until the rice cooking operation is started.
[0009]
In the germinated brown rice rice cooking menu, it is preferable that the heating means is energized with a lower power than that in the normal rice cooking menu until the temperature in the cooking pan reaches a predetermined temperature.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
[0011]
FIG. 1 shows a rice cooker 1 according to an embodiment of the present invention. The rice cooker 1 includes a cooking pot 2, a rice cooker body 3 that accommodates the cooking pot 2, and a lid 4 that is rotatably attached to the rice cooker body 3.
[0012]
The cooking pan 2 is coated or joined to the outer surface of a pan base material made of aluminum or the like having a high thermal conductivity with a ferromagnetic material that is electromagnetically heated by eddy current generated when a high-frequency current is supplied to the induction heating coil 5. Are equal.
[0013]
The rice cooker body 3 includes a protective frame 6 made of a non-conductive material that houses the cooking pot 2 inside a body 3a having a bottomed cylindrical shape. Between the body 3a and the protective frame 6, a control board 8a on which an induction heating coil 5, a cooking pan temperature sensor 7 and a microcomputer 8 are mounted is provided.
[0014]
The lid 4 closes the opening portions of the cooking pot 2 and the rice cooker body 3 so that the opening can be opened, and a radiator plate 10, a lid heater 11 and an inner lid 12 are disposed on the cooking pot 2 side. . The lid body 4 has a known configuration in which a lid temperature sensor 13 is disposed.
[0015]
An operation panel 14 shown in FIG. 2 is disposed on the front surface of the rice cooker body 3. The operation panel 14 is provided with a plurality of switches 14a to 14e for inputting rice cooking conditions around a liquid crystal display type display panel 15 provided in the center.
[0016]
The switches 14a to 14e execute a reserved rice cooking menu or a germinated brown rice rice cooking menu, and a rice cooking switch 14a for pressing the reheating function during execution of the heat retention function, a desired rice cooking menu or a reservation rice cooking menu. Menu switch 14b for selecting the menu item, barge switch 14c for pressing when it is desired to end all the operations including the rice cooking operation and the reserved rice cooking operation and enter a standby state, and heat retention switch 14d for pressing to perform the heat retention function This is a night heat retention switch 14e to be pressed when it is desired to change to the night heat retention function. Further, an LED (not shown) is disposed on the back of each of the switches 14a, 14d, and 14e so that the switches 14a, 14d, and 14e can be turned on or blinked.
[0017]
In the center of the display panel 15, a numerical value display unit 15a capable of displaying a time of 24 hours, a time display unit 15b indicating a unit such as a warming time, and a minute display unit 15c indicating a unit such as the remaining rice cooking operation time. Is provided. Also, above the display panel 15, a triangular display portion for indicating the hardness of the rice in the white rice cooking menu “normal”, “soft rice”, “kame”, and “white rice rapid”, “no-wash rice” ”,“ Curry ”,“ Bento ”,“ Sushimeshi ”,“ Okoge ”,“ Chicken ”,“ Okayu ”,“ Okowa ”, a menu display unit 15d is provided. . Further, a reheat display portion 15e indicating that reheating is being performed is provided above the numerical value display portion 15a. Further, below the display panel 15, a menu display portion 15 f called “germinated brown rice” indicating that the germinated brown rice cooking menu has been selected is provided.
[0018]
The microcomputer 8 mounted on the control board 8a performs a preheating process, a boiling process, a boiling maintenance process, and a double cooking process according to a signal output from the temperature sensors 7, 13 and the like according to a stored program. The rice cooking operation | movement which consists of an uneven process including is performed.
[0019]
Next, the rice cooking operation | movement by the microcomputer 8 of the said rice cooker 1 is demonstrated.
[0020]
First, the user stores the rice in the desired number of cups and the amount of water required to cook the rice in the inner pot 2, sets the inner pot 2 in the main body 3, and then the type of rice to be cooked (White rice or germinated brown rice) or the desired hardness of the rice is set by operating the switches 14a to 14e of the operation panel 14 shown in FIG. 2 arranged in front of the rice cooker body 3, and the rice cooking switch 14a is set. Push.
[0021]
When the rice cooker 1 executes the white rice rice cooking operation, the microcomputer 8 energizes the induction heating coil 5 according to the stored program and executes a normal rice cooking operation as shown in FIG. At this time, the temperature change in the cooking pot 2 changes like a curve T shown in FIG.
[0022]
Moreover, when the rice cooker 1 performs germination brown rice rice cooking operation | movement, as shown in FIG. 4, the microcomputer 8 energizes the induction heating coil 5 according to the memorize | stored program, and performs germination brown rice rice cooking operation | movement. At this time, the temperature change in the cooking pan 2 changes as shown by a curve T ′ shown in FIG. 4. At the time of this germination brown rice rice cooking operation | movement, the electric power W2 lower than electric power W1 of normal rice cooking operation | movement is supplied in a boiling maintenance process. This can prevent spillage and the like. Moreover, at the time of germination brown rice cooking operation | movement, while setting an electric power value to W1 or W2, you may make it make an electricity supply rate low.
[0023]
Next, a case where the user sets the inner pot 2 containing rice and necessary water in the main body 3 and selects the type of rice to be cooked (white rice or germinated brown rice) or the like and then executes the reserved rice cooking function will be described. To do.
[0024]
As shown in the flowchart of FIG. 5, in the rice cooker 1 in the standby state, when the menu switch 14b is turned on and the reserved rice cooking function is selected, it is determined whether or not the germinated brown rice rice cooking menu is set in step S1. To do. When the germinated brown rice cooking menu is selected or set, an error is notified (step S2), and the process returns to the standby state. On the other hand, when the germinated brown rice cooking menu is not set, that is, when the white rice cooking menu is set, the user sets the cooking time by operating the switches 14a to 14e of the operation panel 14, and the reservation timer is set. Set (step S3). Next, when the rice cooking switch 14a is turned on, timer rice cooking is started.
[0025]
Thereby, when a user sets germinating brown rice to rice cooker 1 and tries to reserve rice, an error is notified without executing timer rice cooking, so germinated brown rice is immersed in water until the rice cooking operation is started. It is possible to avoid being left in a state where it is kept. As a result, germinated brown rice can absorb water too much and water in the cooking pot 2 disappears, and cooking rice can be prevented from failing.
[0026]
The present invention is not limited to the above embodiment. The present invention is not limited to the induction heating method of the above embodiment, and can be applied to, for example, a heating plate type rice cooker.
[0027]
【The invention's effect】
As is apparent from the above description, the rice cooker of the present invention includes a cooking pot, a main body that accommodates the cooking pot, a heating means that heats the cooking pot, and a menu rice cooker that is registered by controlling the heating means. In a rice cooker equipped with a control means for performing an operation or a reserved rice cooking operation, a germinated brown rice rice menu for cooking dry-type germinated brown rice is provided, and the control means is selected as a germinated brown rice rice menu , and reserved rice cooking Since the reserved rice cooking operation is not performed when the operation is selected, it is possible to prevent the germination brown rice from absorbing too much water in the cooking pan and causing the rice cooking to fail.
[0028]
In particular, the germinated brown rice cooking menu is designed so that the heating means is energized until the temperature in the cooking pan reaches a predetermined temperature, which is lower than the power value during the normal rice cooking menu. There is also an effect that a rise can be realized.
[Brief description of the drawings]
FIG. 1 is a schematic view of a rice cooker according to the present invention.
FIG. 2 is a front view showing an operation panel of the rice cooker of FIG.
FIG. 3 is a graph showing the temperature change of the cooking pan during the white rice cooking operation.
FIG. 4 is a graph showing a temperature change of a cooking pan during germination brown rice cooking operation.
FIG. 5 is a flowchart showing an example of a reserved rice cooking operation.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Rice cooker 2 ... Cooking pan 3 ... Main body 5 ... Induction heating coil (heating means)
8 ... Microcomputer (control means)

Claims (2)

A cooking pan, a main body that accommodates the cooking pan, a heating unit that heats the cooking pan, and a control unit that controls the heating unit to execute a registered rice cooking operation or a reserved rice cooking operation. In rice cooker,
Established a germinated brown rice cooking menu for cooking dry-type germinated brown rice,
The said control means does not perform the said reservation rice cooking operation, when the said germination brown rice rice cooking menu is selected and reservation rice cooking operation | movement is selected .   The said germinated brown rice rice cooking menu supplies electricity to the said heating means until the temperature in the said cooking pan becomes predetermined temperature with the low electric power compared with the electric power value at the time of a normal rice cooking menu. Rice cooker.

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