JP6837326B2 - rice cooker - Google Patents

Description

The present invention relates to a rice cooker, and particularly to a reservation setting for cooking rice.

Conventionally, there is a rice cooker with a communication function that performs data communication with an external information terminal device directly or via a network (see, for example, Patent Document 1).
The rice cooker with a communication function described in Patent Document 1 is a communication means for exchanging information directly or via a network with an external information terminal device, and various types such as rice cooking control connected to the communication means. It includes a control unit that executes control according to a program stored in advance, and the control unit is programmed to transmit predetermined information to an information terminal device via a communication means when a predetermined event occurs. ..

Japanese Unexamined Patent Publication No. 2006-271460

The conventional rice cooker with a communication function as described in Patent Document 1 cannot change the reservation of rice cooking to the reservation standby state, which is the state of waiting for the execution of the reserved rice cooking. Therefore, when changing the reservation of rice cooking, it is necessary to cancel the reservation setting of rice cooking once to put it in the standby state, and then perform the reservation operation again by the same procedure.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a rice cooker in which it is easy to change the reservation of rice cooking.

The rice cooker according to the present invention has an inner pot having an open upper surface, a main body for accommodating the inner pot, a lid covering the upper part of the main body, a heating means for heating the inner pot, and a reservation setting for cooking rice. It is provided with a reservation setting means for performing and a control unit for controlling the heating means based on the reserved contents, and the control unit executes the reserved rice cooking after the reservation setting for rice cooking is made. It accepts the reservation change operation in the reserved waiting state, which is the waiting state, and in the waiting state, and in the reserved waiting state or in the waiting state immediately after the reservation is canceled, the rice is cooked. When the reservation time change operation is performed and the new reservation time is changed from the original reservation time by the reference time or more, the reservation time change operation is invalidated .

According to the rice cooker according to the present invention, the control unit accepts the reservation change operation in the reservation standby state, which is the state of waiting for the execution of the reserved rice cooking after the rice cooking reservation setting is made. Therefore, it is easy to change the reservation.

It is an external perspective view of the rice cooker which concerns on Embodiment 1 of this invention when the lid body is closed. It is an external perspective view of the rice cooker which concerns on Embodiment 1 of this invention when the lid body is opened. It is a figure which shows the internal circuit structure of the rice cooker which concerns on Embodiment 1 of this invention. It is a front view of the operation display part of the rice cooker which concerns on Embodiment 1 of this invention. It is a figure which shows the detected temperature transition time of the pot bottom temperature sensor in the rice cooking process when rice cooking is executed without making a reservation in the rice cooker which concerns on Embodiment 1 of this invention. It is a figure which shows the detection temperature transition time of the pot bottom temperature sensor in the rice cooking process when the rice cooker reserved with the rice cooker which concerns on Embodiment 1 of this invention execute rice cooking. It is a flowchart which shows the operation at the time of the reservation change of the rice cooker which concerns on Embodiment 1 of this invention. It is a figure which shows the internal circuit structure of the rice cooker which concerns on Embodiment 2 of this invention. It is a flowchart which shows the operation at the time of the reservation change of the rice cooker which concerns on Embodiment 2 of this invention. It is a flowchart which shows the operation at the time of the reservation change of the rice cooker which concerns on Embodiment 3 of this invention. In the rice cooker according to the third embodiment of the present invention, the detection temperature transition time of the pot bottom temperature sensor in the rice cooking process when the new reservation time is changed from the original reservation time to a time earlier than the reference time and the rice is cooked is determined. It is a figure which shows. In the rice cooker according to the third embodiment of the present invention, the detection temperature transition time of the pot bottom temperature sensor in the rice cooking process when the new reservation time is changed from the original reservation time to a time later than the reference time and the rice is cooked is determined. It is a figure which shows. It is a flowchart which shows the operation at the time of the reservation change of the rice cooker which concerns on Embodiment 4 of this invention. It is a flowchart which shows the operation at the time of the reservation change of the rice cooker which concerns on Embodiment 5 of this invention. It is a flowchart which shows the operation at the time of the reservation change of the rice cooker which concerns on Embodiment 6 of this invention. It is a figure which shows the whole structure of the communication system of the rice cooker and the information terminal apparatus which concerns on Embodiment 7 of this invention. It is a flowchart which shows the operation at the time of the reservation change of the rice cooker which concerns on Embodiment 8 of this invention. It is a flowchart which shows the operation at the time of the reservation change of the rice cooker which concerns on Embodiment 9 of this invention. It is a 1st front view which shows the operation display part at the time of reservation change of the rice cooker which concerns on Embodiment 10 of this invention. It is a second front view which shows the operation display part at the time of reservation change of the rice cooker which concerns on Embodiment 10 of this invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. The present invention is not limited to the embodiments described below. Further, in the drawings below, the relationship between the sizes of the constituent members may differ from the actual one.

Embodiment 1.
(Overall composition of rice cooker)
FIG. 1 is an external perspective view of the rice cooker 100 according to the first embodiment of the present invention when the lid 2 is closed, and FIG. 2 is a view showing the lid 2 of the rice cooker 100 according to the first embodiment of the present invention being opened. It is an external perspective view of time.
As shown in FIGS. 1 and 2, the rice cooker 100 according to the first embodiment has a bottomed tubular inner pot 3 that holds a cooked object such as rice inside so that it can be freely taken out. It is provided with a box-shaped main body 1 to be formed. The main body 1 includes a heating coil 6 (see FIG. 3 described later) which is a heating means for inducing heating the inner pot 3.

Further, the rice cooker 100 is detachably attached to a lid 2 provided on a hinge portion (not shown) of the main body 1 so as to be openable and closable, and a surface of the lid 2 on the inner pot 3 side, that is, a lower surface. It includes an inner lid 4 that closes the upper opening of the inner pot 3 when the upper surface of the main body 1 is closed by the lid body 2. Further, the operation display unit 5 which is a user interface provided on the upper surface of the lid 2 is provided.

(Internal circuit configuration of rice cooker)
FIG. 3 is a diagram showing an internal circuit configuration of the rice cooker 100 according to the first embodiment of the present invention.
As shown in FIG. 3, the rice cooker 100 includes at least an internal circuit 10 composed of an inverter unit 11, a control unit 12, and a storage unit 13. Further, an AC power source 7 for supplying an AC voltage is connected to the inverter unit 11 for supplying high frequency power to the heating coil 6.

The inverter unit 11 converts the AC voltage supplied from the AC power supply 7 into a DC voltage inside the inverter unit 11 and supplies the DC voltage to the control unit 12. Further, the inverter unit 11 generates high frequency power from the DC voltage and supplies the high frequency power to the heating coil 6. The heating coil 6 supplied with this high-frequency power induces a vortex current by electromagnetic induction at the bottom of the inner pot 3 placed above the heating coil 6, and the Joule heat generated by the flow of the vortex current causes the inner pot 3 to move. Induced heating.

Further, the control unit 12 is connected to a pot bottom temperature sensor 21 that detects the temperature outside the bottom of the inner pot 3 and an internal temperature sensor 22 that detects the temperature inside the inner pot 3, and receives temperature information from these. To do. Further, the control unit 12 is connected to the lid opening / closing sensor 23, and receives ON / OFF information for opening / closing the lid 2. Further, the control unit 12 is connected to the operation display unit 5, receives the operation information, and transmits the display information. The control unit 12 is connected to a storage unit 13, and the storage unit 13 stores, for example, information on the open / closed state of the lid opening / closing sensor 23 and other control information.

(Configuration of operation display)
FIG. 4 is a front view of the operation display unit 5 of the rice cooker 100 according to the first embodiment of the present invention.
As shown in FIG. 4, for example, a display unit 30 which is a liquid crystal display is arranged in a substantially central portion of the operation display unit 5 provided on the upper surface of the lid 2, and is arranged on the left side and the right side of the display unit 30. Is arranged with an operation unit 40 composed of a plurality of operation switches, which are buttons, for example.

The operation unit 40 includes an off / heat retention switch 41, a rice type selection switch 42, a hardness selection switch 43, a menu selection switch 44, a rice cooking switch 45, a reservation switch 46, and a time switch 47. ing.

On the left side of the display unit 30, there is an off / heat retention switch 41 that forcibly stops rice cooking and starts or stops the heat retention operation, and rice from among "white rice", "washless rice", "germinated brown rice" and "brown rice". Rice type selection switch 42 for selecting the type of rice, and a hardness selection switch 43 for selecting how to cook rice, that is, the hardness of the cooked rice from "normal", "hard", and "soft". , "Rice", "Risotto", "Okayu" and "Cooking" are provided with a menu selection switch 44 for selecting a cooking menu.

Further, on the right side of the display unit 30, a rice cooking switch 45 for starting rice cooking and reheating, a reservation switch 46 for setting a reservation for a cooking time, and a time setting and a reservation for cooking are set. A time switch 47 for setting the time and the like is provided.

A rice type display unit 31 is provided above the display unit 30 to display which rice is selected when the type of rice to be cooked is selected by operating the rice type selection switch 42. For example, when "wash-free rice" is selected by operating the rice type selection switch 42, the character display unit of the "wash-free rice" lights up.

Further, at the lower part of the rice type display unit 31, a hardness display unit 32 that displays which hardness is selected when the hardness of the cooked rice is selected by operating the hardness selection switch 43. Is provided. For example, when "normal" is selected by operating the hardness selection switch 43, the "normal" character display unit lights up.

Further, a menu display unit 33 is provided below the hardness display unit 32 to display which cooking menu is selected when a cooking menu is selected by operating the menu selection switch 44. For example, when "risotto" is selected by operating the menu selection switch 44, the character display unit of the "risotto" lights up, and when "rice" is selected, the menu display unit 33 is turned on. All the constituent character displays turn off. When indicating that "rice" is selected, the menu display unit 33 may be provided with a character display unit "rice" so that the character display unit lights up.

Further, a time display unit 34 is provided below the menu display unit 33 to display the time, the remaining time until the rice is cooked, the heat retention elapsed time after the rice is cooked, and the like.

The arrangement of the display unit 30 and the operation unit 40 constituting the operation display unit 5 as described above is an example, and is not limited to this.
In addition, in the rice type display, hardness display, and menu display, the operation of lighting the corresponding character display unit to indicate the selected item has been described, but the operation is not limited to this, and the character display is not limited to this. The part may perform an operation such as blinking.

(Operation when cooking rice)
FIG. 5a is a diagram showing the detection temperature transition time of the pot bottom temperature sensor 21 in the rice cooking process when rice is cooked without reservation in the rice cooker 100 according to the first embodiment of the present invention, and FIG. 5b is a diagram showing the present. It is a figure which shows the detected temperature transition time of the pot bottom temperature sensor 21 in the rice cooking process when the rice cooker 100 which concerns on Embodiment 1 of the invention reserved and executed rice cooking.
Next, the operation of the rice cooker 100 according to the first embodiment of the present invention during rice cooking will be described with reference to FIGS. 5a and 5b.

First, when the rice is cooked without reservation (hereinafter, also referred to as direct rice cooking), the rice and water to be cooked are stored in the inner pot 3 and the rice cooking conditions are set. Specifically, the rice type selection switch 42 of the operation display unit 5 selects the type of rice, the hardness selection switch 43 selects the hardness of the cooked rice, and the menu selection switch 44 selects the cooking menu. After that, when the rice cooking switch 45 is pressed, the rice cooking process is started.

Further, when the rice cooking is reserved and executed (hereinafter, also referred to as reserved rice cooking), the rice and water to be cooked are stored in the inner pot 3 and the rice cooking conditions are set. Specifically, the rice type selection switch 42 of the operation display unit 5 selects the type of rice, the hardness selection switch 43 selects the hardness of the cooked rice, and the menu selection switch 44 selects the cooking menu. Next, when the reservation switch 46 is pressed, the rice cooking start time, that is, the reservation time can be set using the time display unit 34 of the display unit 30 and the time switch 47. Therefore, the reservation time can be set. Do. After that, when the rice cooking switch 45 is pressed, the reserved time is stored in the storage unit 13, and when the reserved time is reached, the rice cooking process is started.

In the first embodiment, it is assumed that the rice type is set to "white rice", the hardness of the rice is set to "normal", and the cooking menu is set to "rice" as the rice cooking conditions.

When the rice cooking process is started, the control unit 12 controls the heating coil 6 and the like with a control pattern according to the set rice cooking conditions. As shown in FIGS. 5a and 5b, the rice cooking process is composed of steps A, B, C, and D. A is a preheating process for making the rice absorb water, B is a cooking process for boiling the water to be cooked, and C is a cooking process for keeping the boiling state to absorb water into the rice and excess water. It is a boiling maintenance step that evaporates at the same time and eliminates the water in the inner pot 3 while gelatinizing the rice starch, and D is a unevenness step that steams the cooked rice to evenly finish the state inside the inner pot 3. Is.

In the preheating step, the rice is soaked in water that is lower than the temperature at which the rice is gelatinized so that the rice absorbs water in advance so that the central part of the rice can be sufficiently gelatinized in the subsequent steps, especially the boiling maintenance step. It is a process to do. The preheating step is also a step of decomposing starch with an enzyme contained in rice to produce sugar and producing sweetness of rice.

When the preheating process is completed, the process shifts to the cooking process. In the cooking process, the amount of rice to be cooked, that is, the amount of cooked rice is determined by measuring the time difference between the time when the pot bottom temperature sensor 21 reaches a predetermined temperature and the time when the internal temperature sensor 22 reaches a predetermined temperature. There is.

When the internal temperature sensor 22 reaches a predetermined temperature, the cooking process is terminated and the process proceeds to the boiling maintenance process.

The boiling maintenance step is a step of gelatinizing rice starch to raise the degree of gelatinization to about 50 to 60%.

Here, "gelatinization" refers to a state in which starch in rice absorbs water and is swelled and softened by further heat. In the rice cooking process, the control unit 12 controls the inverter unit 11 to energize the heating coil 6 so that the rice and water in the inner pot 3 maintain the boiling state while there is water in the inner pot 3. The heating operation is performed with the amount of rice to be cooked determined in the cooking process, that is, the heating power according to the amount of cooked rice.

By this heating operation, water is absorbed into the rice and excess water is evaporated at the same time, and when the water in the inner pot 3 is exhausted while gelatinizing the starch of the rice, the temperature of the inner pot 3 rises and the pot bottom temperature sensor 21 Heating is performed until the temperature reaches a predetermined temperature (above the boiling point of water, usually around 130 ° C.).

The time to maintain the boiling state varies depending on the amount of rice to be cooked, that is, the amount of cooked rice. If the amount of cooked rice is large, the time to maintain the boiling state becomes long, and the time of the entire rice cooking process also becomes long. ..

When the boiling maintenance process is completed, the process shifts to the unevenness process. The unevenness step is a step of further promoting the gelatinization of rice starch to raise the degree of gelatinization to nearly 100%. In the murashi process, while avoiding the rice on the bottom of the inner pot 3 from burning or drying, it prevents the temperature of the rice from dropping and promotes gelatinization to make the state of the rice in the inner pot 3 uniform. Therefore, pause and heating are alternately repeated multiple times.

As shown in FIGS. 5a and 5b, the time t2 of the preheating process of reserved rice is shorter than the time t2 of the preheating process of direct rice cooking and the time t2 of the preheating process of reserved rice cooking (t2 <t1). .. This is because the reserved rice cooking takes a longer time from the storage of rice and water in the inner pot 3 to the start of rice cooking than the direct rice cooking. If the time is long, the rice may absorb more water and cause problems during rice cooking due to excessive water absorption or evaporation of water. The time of the preheating process, which is the process for making rice absorb water, is shortened.

In the first embodiment, the reserved time is set as the rice cooking start time, but it may be set as the rice cooking completion time.

(Operation when changing reservation)
In the rice cooker 100 according to the first embodiment, the cooked rice in the inner pot 3 is heated by the heating coil 6 after the cooked rice is cooked and the cooked rice is cooked. The state of keeping warm, the state of waiting for reservation, which is the state of waiting for the execution of the set rice cooker after the reservation of rice cooking is made, and the state of turning on the power but doing nothing. It belongs to one of the standby state, which is, and the power off state, which is the state in which the power is not turned on. Then, the rice cooker 100 receives a reservation operation from the reservation setting means in the reservation standby state and in the standby state. In the first embodiment, the reservation setting means is the operation display unit 5.

FIG. 6 is a flowchart showing the operation of the rice cooker 100 according to the first embodiment of the present invention when the reservation is changed.
Hereinafter, the operation of the rice cooker 100 according to the first embodiment when the reservation is changed will be described with reference to FIG.
As shown in FIG. 6, when the control unit 12 determines that the reservation operation from the reservation setting means is completed, that is, after the reservation switch 46 is pressed, the time switch 47 sets the reservation time, and the rice cooking switch 45 If it is determined that is pressed (Yes in step S101), the process proceeds to step S102.

In step S102, the control unit 12 determines whether the current state is the reservation standby state or the standby state after the reservation standby state, that is, the standby state immediately after the rice cooking reservation setting is canceled.
When the control unit 12 determines that the current state is not the reservation waiting state or the waiting state after the reservation waiting state (No in step S102), the control unit 12 ends without accepting the reservation operation.
On the other hand, when the control unit 12 determines that the current state is the reserved waiting state or the waiting state after the reserved waiting state (Yes in step S102), the control unit 12 proceeds to step S103.

In step S103, the control unit 12 accepts the reservation operation from the reservation setting means and proceeds to step S104.

In step S104, the control unit 12 determines whether or not the new reserved time has been changed from the original reserved time by the reference time or more (step S104). Here, the reference time differs in length depending on whether the new reservation time is changed to a time earlier than the original reservation time or the new reservation time is changed to a time later than the original reservation time. It may be done in the same way, or it may be done in the same way.

In addition, the original reservation time is the reserved time that has already been set if the rice cooking reservation has been made, and if the rice cooking reservation setting has not been made, it will be canceled immediately before. It shall be the reservation time set in the reservation.

When the control unit 12 determines that the new reservation time has not been changed from the original reservation time by the reference time or more (No in step S104), the control unit 12 enables the acceptance content of the reservation operation and accepts the reservation change (step S105). In other words, it will be in the reservation waiting state with the new reservation contents.
On the other hand, when the control unit 12 determines that the new reservation time has been changed from the original reservation time by the reference time or more (Yes in step S104), the control unit 12 invalidates the acceptance content of the reservation operation and does not accept the reservation change (step S106). .. Therefore, the original reservation contents are maintained without changing the reservation.

As described above, according to the rice cooker 100 according to the first embodiment, after the rice cooking reservation setting is made, the reservation change operation is performed in the reservation waiting state, which is the state of waiting for the execution of the reserved rice cooking. It is easy to change the reservation because it accepts.

Further, when the control unit 12 determines that the new reservation time has been changed from the original reservation time by the reference time or more, the control unit 12 invalidates the acceptance content of the reservation operation and does not accept the reservation change, so that the reservation is not changed and the original reservation time is not changed. The reservation details are maintained. Therefore, it is possible to prevent the reservation time from becoming too early and causing a rice cooking problem due to insufficient water absorption, and preventing the reservation time from becoming too late and causing a rice cooking problem due to excessive water absorption or the progress of water evaporation. can do.

If the reception content of the reservation operation is enabled in the standby state immediately after the rice cooking reservation setting is canceled, the reservation is not set in the standby state immediately after the rice cooking reservation setting is canceled, so strictly speaking Although it is not a reservation change, in the first embodiment, it means a change from the content set in the reservation canceled immediately before. The same applies to the embodiments described below.

Embodiment 2.
Hereinafter, the second embodiment of the present invention will be described, but the description of the parts overlapping with the first embodiment will be omitted, and the same parts as those of the first embodiment or the corresponding parts will be designated by the same reference numerals.

FIG. 7 is a diagram showing an internal circuit configuration of the rice cooker 100 according to the second embodiment of the present invention.
As shown in FIG. 7, the rice cooker 100 according to the second embodiment is, for example, a liquid crystal display, and includes a notification unit 8 that notifies by displaying characters. Although the notification unit 8 is separate from the display unit 30 of the operation display unit 5, the notification unit 8 is not limited to this, and may be the same as the display unit 30. Further, the notification unit 8 may notify by voice such as a speaker.

FIG. 8 is a flowchart showing the operation of the rice cooker 100 according to the second embodiment of the present invention when the reservation is changed.
Hereinafter, the operation of the rice cooker 100 according to the second embodiment when the reservation is changed will be described with reference to FIG.
Since steps S101 to S103 are the same as those in the first embodiment, the description thereof will be omitted.

In step S104, the control unit 12 determines whether or not the new reserved time has been changed from the original reserved time by the reference time or more.
When the control unit 12 determines that the new reservation time has not been changed from the original reservation time by the reference time or more (No in step S104), the control unit 12 enables the acceptance content of the reservation operation and accepts the reservation change (step S105). In other words, it will be in the reservation waiting state with the new reservation contents.
On the other hand, when the control unit 12 determines that the new reservation time has been changed from the original reservation time by the reference time or more (Yes in step S104), the control unit 12 requests the user for permission to change the reservation by the notification means, for example, "reservation change". Is it okay to do this? ”(Step S201). In the second embodiment, the notification means is the notification unit 8.

When the user is notified by the notification means that the user is requested to permit the reservation change, for example, the operation display unit 5 determines whether or not to permit the reservation change.

In step S202, when it is determined that the user has permitted the reservation change (Yes in step S202), the control unit 12 enables the acceptance content of the reservation operation and accepts the reservation change (step S105). In other words, it will be in the reservation waiting state with the new reservation contents.
On the other hand, when the control unit 12 determines that the reservation change is not permitted (No in step S202), the control unit 12 invalidates the acceptance content of the reservation operation and does not accept the reservation change (step S106). Therefore, the original reservation contents are maintained without changing the reservation.

As described above, according to the rice cooker 100 according to the second embodiment, when the control unit 12 determines that the new reservation time has been changed from the original reservation time by the reference time or more, the user is permitted to change the reservation by the notification means. Notify what you are looking for. Therefore, even if the new reservation time is changed from the original reservation time by more than the reference time, whether to enable the reservation change after asking the user to make a decision instead of immediately invalidating the reservation change. You can decide whether to disable it. Further, the same effect as that of the first embodiment can be obtained.

Embodiment 3.
Hereinafter, the third embodiment of the present invention will be described, but the description of the parts overlapping with the first and second embodiments will be omitted, and the same parts or the corresponding parts as those of the first and second embodiments will be designated by the same reference numerals. ..

FIG. 9 is a flowchart showing the operation of the rice cooker 100 according to the third embodiment of the present invention when the reservation is changed.
Hereinafter, the operation of the rice cooker 100 according to the third embodiment when the reservation is changed will be described with reference to FIG.
Since steps S101 to S103 are the same as those in the first embodiment, the description thereof will be omitted.

In step S104, the control unit 12 determines whether or not the new reserved time has been changed from the original reserved time by the reference time or more.
When the control unit 12 determines that the new reservation time has not been changed from the original reservation time by the reference time or more (No in step S104), the control unit 12 enables the acceptance content of the reservation operation and accepts the reservation change (step S105). In other words, it will be in the reservation waiting state with the new reservation contents.
On the other hand, when the control unit 12 determines that the new reservation time has been changed from the original reservation time by the reference time or more (Yes in step S104), the control unit 12 enables the reception content of the reservation operation and accepts the reservation change. A control pattern different from the normal control pattern corresponding to the newly set rice cooking condition is set in the control pattern of the heating coil 6 (step S301).

FIG. 10a shows the rice cooker 100 according to the third embodiment of the present invention, in which the pot bottom temperature sensor 21 in the rice cooking process when the new reservation time is changed from the original reservation time to a time earlier than the reference time and the rice is cooked. FIG. 10b is a diagram showing the detection temperature transition time of the rice cooker 100 according to the third embodiment of the present invention, in which the new reservation time is changed from the original reservation time to a time later than the reference time to cook rice. It is a figure which shows the detection temperature transition time of the pot bottom temperature sensor 21 in the rice cooking process at the time of execution.

Here, when the new reserved time is not changed from the original reserved time by the reference time or more, the control pattern of the heating coil 6 shown in FIG. 5b is set. When the new reserved time is changed from the original reserved time to a time earlier than the reference time, the control pattern of the heating coil 6 shown in FIG. 10a is set, and the new reserved time is later than the original reserved time by the reference time or more. When changed to, the control pattern of the heating coil 6 shown in FIG. 10b is set.

As shown in FIG. 10a, when the new reservation time is changed from the original reservation time to a time earlier than the reference time, the preheating time t3 is a normal control pattern corresponding to the newly set rice cooking condition in FIG. 5b. This is longer than the preheating time t2 of the control pattern shown in. This is because the change in the reservation time shortens the time from the storage of rice and water in the inner pot 3 to the start of rice cooking as compared with before the change in the reservation time. If the time is shortened, the water absorption of the rice may be insufficient, which may cause a rice cooking problem. Therefore, in order to suppress such a rice cooking problem, a preheating step is a step for causing the rice to absorb water. The time is getting longer.

Further, as shown in FIG. 10b, when the new reservation time is changed from the original reservation time to a time later than the reference time, the preheating time t4 is a normal control pattern corresponding to the newly set rice cooking condition. The preheating time t2 of the control pattern shown in FIG. 5b is shorter than that of the preheating time t2. This is because, due to the change in the reservation time, the time from when the rice and water are stored in the inner pot 3 to the start of cooking rice is longer than before the reservation time is changed. If the time is long, the rice absorbs more water and may cause a rice cooking problem due to excessive water absorption or water evaporation. Therefore, in order to suppress such a rice cooking problem, the rice absorbs water. The time of the preheating process, which is the process for making the rice, is shortened.

As described above, according to the rice cooker 100 according to the third embodiment, when the control unit 12 determines that the new reservation time has been changed from the original reservation time by the reference time or more, the reception content of the reservation operation is enabled and the reservation is made. The change is accepted, but at that time, a control pattern different from the normal control pattern corresponding to the newly set rice cooking condition is set in the control pattern of the heating coil 6. Therefore, it is possible to prevent the reservation time from becoming too early and causing a rice cooking problem due to insufficient water absorption, and preventing the reservation time from becoming too late and causing a rice cooking problem due to excessive water absorption or the progress of water evaporation. can do. In addition, since the reserved time can be changed to cook rice, the usability of the user can be improved. Further, the same effect as that of the first embodiment can be obtained.

Embodiment 4.
Hereinafter, the fourth embodiment of the present invention will be described, but the description of the parts overlapping with the first to third embodiments will be omitted, and the same parts or the corresponding parts as those of the first to third embodiments will be designated by the same reference numerals. ..

FIG. 11 is a flowchart showing the operation of the rice cooker 100 according to the fourth embodiment of the present invention when the reservation is changed.
Hereinafter, the operation of the rice cooker 100 according to the fourth embodiment when the reservation is changed will be described with reference to FIG.
Since steps S101 to S103 are the same as those in the first embodiment, the description thereof will be omitted.

In step S401, the control unit 12 determines whether or not the rice cooking condition has been changed from the original rice cooking condition. Here, the change of the rice cooking condition at the time of the reservation operation is changed, for example, by the user pressing the reservation switch 46, selecting the type of rice with the rice type selection switch 42, and pressing the hardness selection switch 43 to cook the rice. Is selected, the cooking menu is selected with the menu selection switch 44, and then the rice cooking switch 45 is pressed.

When the control unit 12 determines that the rice cooking condition has not been changed from the original rice cooking condition (No in step S401), the control unit 12 proceeds to step S105.
On the other hand, when the control unit 12 determines that the rice cooking condition has been changed from the original rice cooking condition (Yes in step S401), the control unit 12 proceeds to step S402.

In step S402, the control unit 12 determines whether or not the change in the rice cooking condition satisfies a specific condition (step S402).
When the control unit 12 determines that the change of the rice cooking condition does not satisfy the specific condition (No in step S402), the control unit 12 proceeds to step S105, enables the acceptance content of the reservation operation, and accepts the reservation change. In other words, it will be in the reservation waiting state with the new reservation contents.
On the other hand, when the control unit 12 determines that the change of the rice cooking condition satisfies a specific condition (Yes in step S402), the control unit 12 proceeds to step S106, invalidates the acceptance content of the reservation operation, and does not accept the reservation change. Therefore, the original reservation contents are maintained without changing the reservation.

Here, the specific condition is when the new rice cooking condition is set to a condition in which the water content is lower than the original rice cooking condition. For example, the cooking menu is changed from "porridge" to "rice" or "risotto". For example, when it is changed from "rice" to "rice". In addition, the new rice cooking condition is set to a condition where the heating power is larger than the original rice cooking condition, that is, the power consumption per unit time is larger. For example, the cooking menu is changed from "rice" to "cooking". For example, when it is changed to. This is also the case when the hardness of the cooked rice is changed from "soft" to "normal" or from "normal" to "hard".

In addition, the original rice cooking condition is the rice cooking condition that has been set if a reservation has already been set, and if the reservation has not been set, it is set by the reservation that was canceled immediately before. It shall be the rice cooking conditions.

In this way, under certain conditions, the rice cooking conditions may change to significantly different water ratios or heating powers. In such cases, rice cooking may cause spills or the rice may become extremely soft. It may cause a malfunction. Therefore, in order to suppress such a rice cooking problem, if the change of the rice cooking condition satisfies a specific condition, the reservation change is not accepted.

As described above, according to the rice cooker 100 according to the fourth embodiment, the control unit 12 determines whether or not the change in the rice cooking condition satisfies a specific condition, and determines that the change in the rice cooking condition satisfies the specific condition. In that case, the contents of the reservation operation are invalidated and the reservation change is not accepted. Therefore, it is possible to suppress rice cooking problems such as spillage and extremely soft rice, which occur when the water content or the heating power is changed to a significantly different rice cooking condition.

Embodiment 5.
Hereinafter, the fifth embodiment of the present invention will be described, but the description of the parts overlapping with the first to fourth embodiments will be omitted, and the same parts or the corresponding parts as those of the first to fourth embodiments will be designated by the same reference numerals. ..
FIG. 12 is a flowchart showing the operation of the rice cooker 100 according to the fifth embodiment of the present invention when the reservation is changed.
Hereinafter, the operation of the rice cooker 100 according to the fifth embodiment when the reservation is changed will be described with reference to FIG.
Since steps S101 to S103 are the same as those in the first embodiment, the description thereof will be omitted.

In step S401, the control unit 12 determines whether or not the rice cooking conditions have been changed.
When the control unit 12 determines that the rice cooking conditions have not been changed (No in step S401), the control unit 12 proceeds to step S105.
On the other hand, when the control unit 12 determines that the rice cooking conditions have been changed (Yes in step S401), the control unit 12 proceeds to step S402.

In step S402, the control unit 12 determines whether or not the change in the rice cooking condition satisfies a specific condition.
When the control unit 12 determines that the change in the rice cooking condition does not satisfy the specific condition (No in step S402), the control unit 12 proceeds to step S105.
On the other hand, when the control unit 12 determines that the change in the rice cooking condition satisfies a specific condition (Yes in step S402), the control unit 12 requests the user for permission to change the reservation by the notification means, for example, "even if the reservation is changed". Is it okay? ”(Step S501). In the fifth embodiment, the notification means is the notification unit 8.

When the user is notified by the notification means that the user is requested to permit the reservation change, for example, the operation display unit 5 determines whether or not to permit the reservation change.

In step S502, when it is determined that the user has permitted the reservation change (Yes in step S502), the control unit 12 enables the acceptance content of the reservation operation and accepts the reservation change (step S105). In other words, it will be in the reservation waiting state with the new reservation contents.
On the other hand, when the control unit 12 determines that the reservation change is not permitted (No in step S502), the control unit 12 invalidates the acceptance content of the reservation operation and does not accept the reservation change (step S106). Therefore, the original reservation contents are maintained without changing the reservation.

As described above, according to the rice cooker 100 according to the fifth embodiment, when the control unit 12 determines that the change of the rice cooking condition satisfies a specific condition, the control unit 12 requests the user for permission to change the reservation by the notification means. Notify. Therefore, even if the change in rice cooking conditions meets certain conditions, instead of immediately invalidating the reservation change, ask the user to make a decision and then decide whether to enable or disable the reservation change. Can be decided. Further, the same effect as that of the fourth embodiment can be obtained.

Embodiment 6.
Hereinafter, the sixth embodiment of the present invention will be described, but the description of the parts overlapping with the first to fifth embodiments will be omitted, and the same parts or the corresponding parts as those of the first to fifth embodiments will be designated by the same reference numerals. ..

FIG. 13 is a flowchart showing the operation of the rice cooker 100 according to the sixth embodiment of the present invention when the reservation is changed.
Hereinafter, the operation of the rice cooker 100 according to the sixth embodiment when the reservation is changed will be described with reference to FIG.
Since steps S101 to S103 are the same as those in the first embodiment, the description thereof will be omitted.

In step S401, the control unit 12 determines whether or not the rice cooking condition has been changed from the original rice cooking condition.
When the control unit 12 determines that the rice cooking condition has not been changed from the original rice cooking condition (No in step S401), the control unit 12 proceeds to step S105.
On the other hand, when the control unit 12 determines that the rice cooking condition has been changed from the original rice cooking condition (Yes in step S401), the control unit 12 proceeds to step S402.

In step S402, the control unit 12 determines whether or not the change in the rice cooking condition satisfies a specific condition.
When the control unit 12 determines that the change in the rice cooking condition does not satisfy the specific condition (No in step S402), the control unit 12 enables the acceptance content of the reservation operation and accepts the reservation change (step S105). In other words, it will be in the reservation waiting state with the new reservation contents.
On the other hand, when the control unit 12 determines that the change in the rice cooking condition satisfies a specific condition (Yes in step S402), the control unit 12 enables the acceptance content of the reservation operation and accepts the reservation change. At that time, the heating coil 6 A control pattern different from the normal control pattern corresponding to the newly set rice cooking condition is set in the control pattern (step S601).

As described above, according to the rice cooker 100 according to the sixth embodiment, when the control unit 12 determines that the change of the rice cooking condition satisfies a specific condition, the reception content of the reservation operation is enabled and the reservation change is accepted. At that time, a control pattern different from the normal control pattern corresponding to the newly set rice cooking condition is set in the control pattern of the heating coil 6. Therefore, it is possible to suppress rice cooking problems such as spillage and extremely soft rice, which occur when the water content or the heating power is changed to a significantly different rice cooking condition. Moreover, since the rice cooking conditions can be changed to execute the rice cooking, the usability of the user can be improved. Further, the same effect as that of the fourth embodiment can be obtained.

Embodiment 7.
Hereinafter, the seventh embodiment of the present invention will be described, but the description of the parts overlapping with the first to sixth embodiments will be omitted, and the same parts or the corresponding parts as those of the first to sixth embodiments will be designated by the same reference numerals. ..

FIG. 14 is a diagram showing an overall configuration of a communication system of the rice cooker 100 and the information terminal device 200 according to the seventh embodiment of the present invention.
As shown in FIG. 14, the rice cooker 100 according to the seventh embodiment performs wireless communication such as infrared rays, Wi-Fi (registered trademark), and Bluetooth (registered trademark) on the front side of the lid 2. The communication means 9 of the above is provided, and wireless communication can be performed with an external information terminal device 200 having a wireless communication function. In FIG. 14, a mobile phone is shown as the information terminal device 200, but the present invention is not limited to this, and a PDA (personal information terminal) having a wireless communication function, a personal computer, or the like may be used.

The information terminal device 200 has a function of connecting to a network such as the Internet 300, and can access the Web server 400 via the Internet 300.

The information terminal device 200 can remotely control the rice cooker 100 by wireless communication. That is, instead of making a reservation setting for rice cooking from the operation display unit 5 of the rice cooker 100, it is possible to make a reservation setting for rice cooking from the operation display unit 201 of the information terminal device 200 that can be connected to the rice cooker 100 by wireless communication. it can. The operation display unit 201 is, for example, a touch panel. Further, the application program required for such remote control can be downloaded from the web server 400.

For example, on a web page opened on the Internet 300 by the manufacturer of the rice cooker 100 or its agent, an application program for remotely controlling the rice cooker 100 using the information terminal device 200 is provided. Such application programs are stored on the web server 400. By accessing the web page, the user can download the application program to his / her information terminal device 200 and install it in an executable state. It should be noted that this application program does not necessarily include all the setting operation functions of the rice cooker 100, and at least the reservation setting of rice cooking may be possible by remote control from the information terminal device 200.

Further, the rice cooker 100 is provided with a lock function for preventing erroneous operation, for example, by simultaneously pressing a plurality of operation switches of the operation unit 40 of the operation display unit 5, or by using a dedicated lock button (shown in the figure). The lock mode is set by pressing (1). Here, the lock mode is a mode in which the control unit 12 accepts only a specific operation such as releasing the lock mode from the operation unit 40 of the operation display unit 5.

The rice cooker 100 according to the seventh embodiment has a lock mode set, and even if only a specific operation can be performed from the operation unit 40 of the operation display unit 5, a reservation operation from the operation display unit 201 of the information terminal device 200 can be performed. Accept. Then, after accepting the reservation operation from the operation display unit 201 of the information terminal device 200, any of the processes described in the first to third and fifth to seventh embodiments is performed. Specifically, in any of the flowcharts shown in FIGS. 6, 8, 9, and 11 to 13, the subsequent processing including step S102 is performed. In that case, the reservation setting means is the operation display unit 201 of the information terminal device 200, and the notification means is the notification unit (not shown) of the information terminal device 200.

From the above, even when only a specific operation can be performed from the operation unit 40 of the operation display unit 5, it is possible to make a reservation setting for cooking rice from the operation display unit 201 of the information terminal device 200.

In the seventh embodiment, the information terminal device 200 and the rice cooker 100 directly communicate with each other by wireless communication, but the present invention is not limited to this, and the information terminal device is not limited to the information terminal device 200 and the rice cooker 100 from a distant place such as a user's outing. The 200 may be configured to communicate with the rice cooker 100 via the Internet 300. With such a configuration, the user can access the rice cooker 100 from outside via the Internet 300 using the information terminal device 200, and set a reservation for cooking rice.

Further, in the seventh embodiment, the information terminal device 200 and the rice cooker 100 communicate with each other by wireless communication, but the present invention is not limited to this, and the information terminal device 200 and the rice cooker 100 communicate with each other by wired communication. May be configured to do.

Further, even if the lock mode is not set, the operation from the operation unit 40 of the operation display unit 5 may be restricted while the information terminal device 200 is connected to the rice cooker 100.

As described above, according to the rice cooker 100 according to the seventh embodiment, wireless communication can be performed with the information terminal device 200 having a wireless communication function. Therefore, in order to prevent malfunction, the lock mode is set in the rice cooker 100, and even if only a specific operation can be performed from the operation unit 40 of the operation display unit 5, the rice cooker is reserved from the operation display unit 201 of the information terminal device 200. Settings etc. can be made. Further, by configuring the information terminal device 200 so that it can communicate with the rice cooker 100 via the Internet 300, it is possible to make a reservation setting for cooking rice from a distant place.

Embodiment 8.
Hereinafter, the eighth embodiment of the present invention will be described, but the description of the parts overlapping with the first to seventh embodiments will be omitted, and the same parts or the corresponding parts as those of the first to seventh embodiments will be designated by the same reference numerals. ..

FIG. 15 is a flowchart showing the operation of the rice cooker 100 according to the eighth embodiment of the present invention when the reservation is changed.
Hereinafter, the operation of the rice cooker 100 according to the eighth embodiment when the reservation is changed will be described with reference to FIG.
Since steps S101 to S103 are the same as those in the first embodiment, the description thereof will be omitted.

In step S701, the control unit 12 determines whether or not the reservation has been changed before, that is, whether or not the reservation has been changed since the end of the previous rice cooking.
When the control unit 12 determines that the reservation change has not been made before (No in step S701), the control unit 12 proceeds to step S703.
On the other hand, when the control unit 12 determines that the reservation change has been made before (Yes in step S701), the control unit 12 notifies the user that the reservation change has been made before by the notification means, for example, "previously". The reservation has also been changed. ”(Step S702), and the process proceeds to step S703. The detailed change history of the rice cooking conditions and the reserved time may be notified. Further, in the eighth embodiment, the notification means is the notification unit 8 when the reservation operation is performed from the operation unit 40 of the operation display unit 5, and the reservation operation is performed from the operation display unit 201 of the information terminal device 200. If it is done, it shall be the notification unit of the information terminal device 200.

In step S703, the control unit 12 enables the reception content and accepts the reservation change. In other words, it will be in the reservation waiting state with the new reservation contents.

As described above, according to the rice cooker 100 according to the eighth embodiment, when the control unit 12 determines that the reservation change has been made before, the notification means has previously made the reservation change. Notify the content to be notified to the user. Therefore, even when a plurality of users operate the information terminal device 200 from different places to change the reservation, it is possible to prevent duplicate reservation changes.

When notifying the user that the reservation has been changed before, the notification unit 8 of the rice cooker 100 and the notification unit of all the information terminal devices 200 connected to the rice cooker 100. May be notified. By doing so, it is possible to suppress the problem that the reservation was changed by another user without knowing it.

Embodiment 9.
Hereinafter, the ninth embodiment of the present invention will be described, but the description of the parts overlapping with the first to eighth embodiments will be omitted, and the same parts or the corresponding parts as those of the first to eighth embodiments will be designated by the same reference numerals. ..

FIG. 16 is a flowchart showing the operation of the rice cooker 100 according to the ninth embodiment of the present invention when the reservation is changed.
Hereinafter, the operation of the rice cooker 100 according to the ninth embodiment when the reservation is changed will be described with reference to FIG.
Since steps S101 to S103 are the same as those in the first embodiment, the description thereof will be omitted.

In step S701, the control unit 12 determines whether or not the reservation has been changed before, that is, whether or not the reservation has been changed since the end of the previous rice cooking.
When the control unit 12 determines that the reservation change has not been made before (No in step S701), the control unit 12 enables the acceptance content of the reservation operation and accepts the reservation change (step S105). In other words, it will be in the reservation waiting state with the new reservation contents.
On the other hand, when the control unit 12 determines that the reservation has been changed before (Yes in step S701), the control unit 12 starts cooking rice under the initially set rice cooking conditions (step S801).

Here, the default rice cooking conditions are rice cooking conditions that are usually often selected. For example, the rice type is "white rice", the hardness of the rice is "normal", and the cooking menu is "rice". This default rice cooking condition may be changed by the user.

As described above, according to the rice cooker 100 according to the ninth embodiment, when it is determined that the reservation has been changed before, the control unit 12 starts cooking rice under the initially set rice cooking conditions. Therefore, it is possible to avoid the situation where the rice is not cooked. For example, if user A sets the reserved time from the information terminal device 200 at 18:00, which is the scheduled time to return home, and then another user B tries to set the reserved time from the information terminal device 200 at 19:00, the reserved time is changed. If this happens, the rice will not be cooked when User A returns home. However, when the user B tries to set the reservation time from the information terminal device 200 to 19:00, the rice cooking starts under the default rice cooking conditions, so that the rice cannot be cooked when the user A returns home. be able to.

Embodiment 10.
Hereinafter, the tenth embodiment of the present invention will be described, but the description of the parts overlapping with the first to ninth embodiments will be omitted, and the same parts or the corresponding parts as those of the first to ninth embodiments will be designated by the same reference numerals. ..

FIG. 17 is a first front view showing an operation display unit 5 when the reservation of the rice cooker 100 according to the tenth embodiment of the present invention is changed, and FIG. 18 is a first front view showing the rice cooker 100 according to the tenth embodiment of the present invention. It is a 2nd front view which shows the operation display part 5 at the time of the reservation change of 100.
In the rice cooker 100 according to the tenth embodiment, as shown in FIGS. 17 and 18, when the operation of changing the reserved time for cooking rice is performed from the operation display unit 5, the time display unit 34 of the display unit 30 is displayed. The difference time between the reserved time of and the original reserved time is displayed. That is, the time display unit 34 is displayed so that the user can set the new reserved time with the difference time from the original reserved time.

For example, if the reserved time is set to 18:00 and you want to change the reserved time to 20:00, as shown in FIG. 17, the original reserved time "18:00" is displayed above the time display unit 34. Is displayed. Further, since "0:00", which is the difference time from the original reserved time, is displayed on the lower side of the time display unit 34, the user presses the time switch 47 to set the difference time to "2:00". match. Further, since "before" or "after" is displayed on the right side of the difference time, the user presses, for example, the menu selection switch 44 to set to "after". The "before" or "after" displayed on the right side of the difference time may be automatically switched while the time switch 47 is pressed. Then, when the rice cooking switch 45 is pressed while "after 2:00 of 18:00" is displayed on the time display unit 34, the new reservation time is set to 20:00.

If the reserved time is set to 18:00 and you want to change the reserved time to 12:00, as shown in FIG. 18, the original reserved time "18:00" is displayed above the time display unit 34. Is displayed. Further, since "0:00", which is the difference time from the original reserved time, is displayed on the lower side of the time display unit 34, the user presses the time switch 47 to set the difference time to "6:00". match. Further, since "before" or "after" is displayed on the right side of the difference time, the user presses, for example, the menu selection switch 44 to set to "before". The "before" or "after" displayed on the right side of the difference time may be automatically switched while the time switch 47 is pressed. Then, when the rice cooking switch 45 is pressed while "before 6:00 of 18:00" is displayed on the time display unit 34, the new reservation time is set to 12:00.

Further, when the operation of changing the reservation time for rice cooking is performed not from the operation display unit 5 but from the operation display unit 201 of the information terminal device 200, the display unit of the operation display unit 201 of the information terminal device 200 (not shown). ), Similar to the display unit 30 shown in FIGS. 17 and 18, the original reserved time and the difference time between the original reserved time are displayed. That is, the display unit of the operation display unit 201 of the information terminal device 200 is displayed so that the user can set the new reservation time with the difference time from the original reservation time.

As described above, according to the rice cooker 100 according to the tenth embodiment, when the operation of changing the reserved time for cooking rice is performed, the time display unit 34 of the display unit 30 or the display unit of the operation display unit 201 of the information terminal device 200 is displayed. , The difference time between the original reserved time and the original reserved time is displayed. Therefore, the user can set the new reservation time by shifting the time difference from the original reservation time, and the user's usability can be improved.

1 Main body, 2 lid, 3 inner pot, 4 inner lid, 5 operation display, 6 heating coil, 7 AC power supply, 8 notification unit, 9 communication means, 10 internal circuit, 11 inverter unit, 12 control unit, 13 storage Unit, 21 Pot bottom temperature sensor, 22 Internal temperature sensor, 23 Lid open / close sensor, 30 Display unit, 31 Rice type display unit, 32 Hardness display unit, 33 Menu display unit, 34 Hours display unit, 40 Operation unit, 41 Heat retention Switch, 42 rice type selection switch, 43 hardness selection switch, 44 menu selection switch, 45 rice cooking switch, 46 reservation switch, 47 time switch, 100 rice cooker, 200 information terminal equipment, 201 operation display, 300 Internet, 400 web server.

Claims (18)

An inner pot with an open top surface and
The main body that houses the inner pot and
A lid covering the upper part of the main body and
A heating means for heating the inner pot and
Reservation setting means for setting reservations for cooking rice,
A control unit that controls the heating means based on the reserved contents is provided.
The control unit
After the rice cooking reservation setting is made, the reservation change operation is accepted in the reservation waiting state, which is the state of waiting for the execution of the reserved rice cooking, and in the waiting state.
In the waiting state for reservation, or in the waiting state immediately after the reservation is canceled,
When the operation to change the reserved time for cooking rice is performed
If the new reservation time is changed from the original reservation time by more than the reference time,
A rice cooker characterized by disabling the operation of changing the reserved time. An inner pot with an open top surface and
The main body that houses the inner pot and
A lid covering the upper part of the main body and
A heating means for heating the inner pot and
Reservation setting means for setting reservations for cooking rice,
A control unit that controls the heating means based on the reserved contents, and
Equipped with a notification means,
The control unit
After the rice cooking reservation setting is made, the reservation change operation is accepted in the reservation waiting state, which is the state of waiting for the execution of the reserved rice cooking, and in the waiting state.
In the waiting state for reservation, or in the waiting state immediately after the reservation is canceled,
When the operation to change the reserved time for cooking rice is performed
If the new reservation time is changed from the original reservation time by more than the reference time,
A rice cooker characterized in that the content of requesting the user for permission to change the reservation time is notified by the above-mentioned notification means. An inner pot with an open top surface and
The main body that houses the inner pot and
A lid covering the upper part of the main body and
A heating means for heating the inner pot and
Reservation setting means for setting reservations for cooking rice,
A control unit that controls the heating means based on the reserved contents is provided.
The control unit
After the rice cooking reservation setting is made, the reservation change operation is accepted in the reservation waiting state, which is the state of waiting for the execution of the reserved rice cooking, and in the waiting state.
In the waiting state for reservation, or in the waiting state immediately after the reservation is canceled,
When the operation to change the reserved time for cooking rice is performed
If the new reservation time is changed from the original reservation time by more than the reference time,
A rice cooker characterized in that the control pattern of the heating means is set to a control pattern different from the normal control pattern corresponding to the newly set rice cooking conditions. An inner pot with an open top surface and
The main body that houses the inner pot and
A lid covering the upper part of the main body and
A heating means for heating the inner pot and
Reservation setting means for setting reservations for cooking rice,
A control unit that controls the heating means based on the reserved contents is provided.
The control unit
After the rice cooking reservation setting is made, the reservation change operation is accepted in the reservation waiting state, which is the state of waiting for the execution of the reserved rice cooking, and in the waiting state.
In the waiting state for reservation, or in the waiting state immediately after the reservation is canceled,
When the rice cooking condition is changed
If the change in rice cooking conditions meets certain conditions,
A rice cooker characterized by disabling the operation of changing rice cooking conditions. An inner pot with an open top surface and
The main body that houses the inner pot and
A lid covering the upper part of the main body and
A heating means for heating the inner pot and
Reservation setting means for setting reservations for cooking rice,
A control unit that controls the heating means based on the reserved contents, and
Equipped with a notification means,
The control unit
After the rice cooking reservation setting is made, the reservation change operation is accepted in the reservation waiting state, which is the state of waiting for the execution of the reserved rice cooking, and in the waiting state.
In the waiting state for reservation, or in the waiting state immediately after the reservation is canceled,
When the rice cooking condition is changed
If the change in rice cooking conditions meets certain conditions,
A rice cooker characterized in that the content of requesting the user for permission to change the rice cooking conditions is notified by the above-mentioned notification means. An inner pot with an open top surface and
The main body that houses the inner pot and
A lid covering the upper part of the main body and
A heating means for heating the inner pot and
Reservation setting means for setting reservations for cooking rice,
A control unit that controls the heating means based on the reserved contents is provided.
The control unit
After the rice cooking reservation setting is made, the reservation change operation is accepted in the reservation waiting state, which is the state of waiting for the execution of the reserved rice cooking, and in the waiting state.
In the waiting state for reservation, or in the waiting state immediately after the reservation is canceled,
When the rice cooking condition is changed
If the change in rice cooking conditions meets certain conditions,
A rice cooker characterized in that a control pattern different from a normal control pattern corresponding to a newly set new rice cooking condition is set in the control pattern of the heating means. An inner pot with an open top surface and
The main body that houses the inner pot and
A lid covering the upper part of the main body and
A heating means for heating the inner pot and
Reservation setting means for setting reservations for cooking rice,
A control unit that controls the heating means based on the reserved contents, and
Equipped with a notification means,
The control unit
After the rice cooking reservation setting is made, the reservation change operation is accepted in the reservation waiting state, which is the state of waiting for the execution of the reserved rice cooking, and in the waiting state.
In the waiting state for reservation, or in the waiting state immediately after the reservation is canceled,
When the reservation change operation is performed
If the reservation has been changed before,
A rice cooker characterized in that the notification means is used to notify that a reservation change has been made before. Equipped with a display
The control unit
In the waiting state for reservation, or in the waiting state immediately after the reservation is canceled,
When the operation to change the reserved time for cooking rice is performed
The rice cooker according to any one of claims 1 to 7, wherein the display unit displays the original reserved time and the difference time between the original reserved time. Equipped with a communication means for communicating directly or via a network with an external information terminal device
The control unit
The rice cooker according to any one of claims 1, 3, 4, and 6, wherein the reservation change operation is accepted from the information terminal device during the reservation standby state and the standby state. The control unit
It has a lock mode that locks the operation from the reservation setting means.
If the lock mode is set,
In the waiting state for reservation, or in the waiting state immediately after the reservation is canceled,
The rice cooker according to claim 9, wherein the reservation change operation is not accepted from the reservation setting means, but the reservation change operation is accepted from the information terminal device. The control unit
In the waiting state for reservation, or in the waiting state immediately after the reservation is canceled,
When the rice cooking reservation time is changed from the information terminal device,
If the new reservation time is changed from the original reservation time by more than the reference time,
The rice cooker according to claim 9 or 10, wherein the content of requesting the user for permission to change the reservation time is notified by the notification means of the information terminal device. The control unit
In the waiting state for reservation, or in the waiting state immediately after the reservation is canceled,
When the rice cooking condition is changed from the information terminal device,
If the change in rice cooking conditions meets certain conditions,
The rice cooker according to claim 9 or 10, wherein the content of requesting the user for permission to change the rice cooking conditions is notified by the notification means of the information terminal device. The control unit
In the waiting state for reservation, or in the waiting state immediately after the reservation is canceled,
When the reservation change operation is performed from the information terminal device
If the reservation has been changed before,
The rice cooker according to claim 9 or 10, wherein the notification means of the information terminal device notifies that the reservation has been changed before. The control unit
In the waiting state for reservation, or in the waiting state immediately after the reservation is canceled,
When a reservation change operation is performed from the reservation setting means or the information terminal device,
If the reservation has been changed before,
The rice cooker according to claim 9 or 10, wherein the rice cooker cancels the reservation and starts cooking rice under the initially set rice cooking conditions. The rice cooking according to any one of claims 4 to 6 and 12, wherein the specific condition is a case where the new rice cooking condition is set to a condition in which the water content is lower than the original rice cooking condition. vessel. The specific condition is any of claims 4 to 6, 12, and 15, wherein the new rice cooking condition is set to a condition in which the power consumption per unit time is larger than that of the original rice cooking condition. The rice cooker described in item 1. The reference time is when the new reservation time is changed to a time earlier than the original reservation time.
The rice cooker according to any one of claims 1 to 11, wherein the new reservation time is changed to a time later than the original reservation time, and the length is different. The control unit
In the waiting state for reservation, or in the waiting state immediately after the reservation is canceled,
When the rice cooking reservation time is changed from the information terminal device,
Any of claims 9 or claims 10 to 17, which is dependent on claim 9, wherein the display unit of the information terminal device displays the original reserved time and the difference time between the original reserved time. The rice cooker described in item 1.

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