JP3956954B2 - Electric rice cooker - Google Patents

Description

  The present invention relates to an electric rice cooker that cooks rice by electric heating such as a heater or electromagnetic induction.

  Electric rice cookers have almost the same basic configuration regardless of the heating method. Referring to FIG. 1 showing the present embodiment, a rice cooker 3 that is heated in a vessel 2 that is closed by a lid 1 and is heated and cooked by heating, and the heating is performed. The heating means 4, the temperature sensor 5 which detects the temperature of the rice cooker 3, and the rice cooking control means 6 which controls the heating means 4 in the rice cooking mode based on the rice cooker temperature detected by the temperature sensor 5 are provided. Yes. Electric rice cookers have been provided for a long time, and have been steadily working to cook delicious rice. For example, recently, as shown in FIG. 9, a water absorption process in which rice is absorbed by low heat, a cooking process from boiling to high heat and fuzzy thermal power until the temperature starts to rise rapidly after the water disappears, and is heated to about 130 ° C. Then, the baking process to further remove excess moisture, and then lower the temperature to 115 ° C and maintain it for a certain period of time, then lower the temperature to 110 ° C and maintain it, and then the excess steam is blown off. The steaming process that further promotes alpha conversion and increases sweetness is sequentially performed to finish cooking rice. After cooking the rice, the temperature is lowered to a predetermined temperature, and the process proceeds to a temperature maintaining process for maintaining the temperature.

  In addition, as the electric rice cooker becomes highly functional and multi-functional, as illustrated in FIG. 2 (a) showing the embodiment of the present invention, white rice, quick cooking, classification, germination brown rice is also used for rice cooking. , Brown rice, rice porridge, sushi, cooked, steamed steamed rice, even if the water level is the same, you can set the difference between normal, hard, soft, and steamed. In addition, there are menus other than rice cooking such as washing without rice washing, and cleaning with citric acid washing of bread fermentation, baking, rice ware and lids. Furthermore, it is possible to make a setting so that cooking is reserved and starts at the time of reservation, or cooking ends at the time of reservation.

Regarding such reservation, the rice cooking start time is set by an analog timer, the timer cooking mode is set by operating the reservation button, and the timer rice cooking mode is started by the operation of the rice cooking button (for example, (Refer to Patent Document 1.) or a reservation time that is set by a reservation time setting operation without a special rice cooking start operation or a predetermined time before the reservation time (see FIG. For example, see Patent Document 2).
Japanese Patent Laid-Open No. 10-225378 JP 07-275122 A

  However, the high functionality and multi-functionality of an electric rice cooker have complicated and complicated the operation and display in use. For this reason, it has been felt that it is difficult for a person to perform a selection operation that achieves the finished condition that the user feels cooking a specific menu. Also, the automatic response on the rice cooker side is fine, but the user side has to choose it, and some people may be dissatisfied, and the conventional reservation function is such as when going to bed or going out By making a reservation before a time zone that does not involve people for a long time, it is necessary to automatically start time-consuming cooking such as rice cooking using that time zone, such as when getting up or going home Although there is a convenience that allows freshly cooked rice to be eaten at the time, it does not eliminate the above-mentioned specific dissatisfaction of the user.

  An object of the present invention is to provide an electric rice cooker capable of finishing cooking such as rice cooking in response to a specific individual difference of a user with a simple setting operation corresponding to the user's actual feeling and preference.

In order to achieve the above object, the electric rice cooker of the present invention includes a rice cooker that cooks rice by heating in a closed lid, a heating means that performs the heating, and a temperature that detects the temperature of the rice cooker. One or more that performs cooking, including rice cooking, by type in an electric rice cooker comprising a sensor and a control means for controlling the heating means in the white rice rice cooking mode based on the rice cooker temperature detected by the temperature sensor When the cooking mode and the cooking mode by the cooking start operation are executed, the rice cooker containing the food including water and rice, which is provided independently or as part of the cooking mode, is closed. the pretreated with the accommodated state of cooking, such as water, only the pre-treatment time set by the user prior to cooking start operation for a pre-processing mode performed by the start operation of the cooking, that had as one feature Yes.

  In such a configuration, a rice cooker containing cooked items such as white rice and water is housed in a container with the lid closed, and the control means is set in advance by starting cooking. Cooking such as rice cooking is performed by controlling the heating means in the selected cooking mode. In particular, when the time setting of the pretreatment mode is performed by the user at the start of cooking, the control means performs pretreatment such as water absorption separately from the cooking mode or as a part thereof, and then cooks. Since the mode is advanced, the user can freely set his / her own feeling corresponding to the type of cooking and the purpose of cooking, such as new rice, old rice, old used rice, brown rice, germinated brown rice, etc. As much as possible, pre-treatment such as water absorption can be achieved through automatic cooking operations such as cooking rice, and the will of the cook can be reflected in detail.

The electric rice cooker of the present invention is also detected by a rice cooker that cooks rice by heating in a closed lid, a heating means that performs the heating, a temperature sensor that detects the temperature of the cooker, and a temperature sensor. One or more cooking modes for performing cooking such as rice cooking by type and cooking start operation in an electric rice cooker comprising a control means for cooking rice by controlling the heating means in the white rice rice cooking mode based on the rice cooker temperature When the cooking mode is executed by, cooking with water absorption in a state where the rice cooker containing water and cooked items such as rice, which is provided independently or as part of it , is housed in a container with the lid closed pretreatment of only the pre-treatment time set by the user prior to cooking start operation for having a preprocessing mode for the start operation of the cooking, the cooking mode and pre-processing mode both set time or and the remaining of Are separate features to be displayed on the same display unit between.

  In such a configuration, compared with the case of the one feature, in particular, the set time or the remaining time of both the cooking mode and the preprocessing mode are displayed on the same display unit, and the user can change the preprocessing mode he / she has done. The setting can be checked together with the execution of the cooking mode, and depending on the display of the remaining time, whether the progress of the preprocessing mode and the progress of the cooking mode is independent or partially overlapped, it is visible to the tool. it can.

The pre-processing mode cannot be set beyond the upper limit time.
Since the pre-processing mode is an act of adjusting cooking based on the user's feelings and preferences for cooking modes such as standard rice cooking, an excessive time setting that can not be handled in the cooking mode and is contrary to intention is set to the upper limit time. This can be prevented beforehand.

The pre-processing mode cannot be set below the lower limit time.
The pre-processing mode is a cooking adjustment action based on the user's actual feelings and preferences for cooking modes such as standard rice cooking, but setting a time that is too small so that no substantial change is seen is useless. It is possible to prevent the user from being distrusted by setting the lower limit time in advance.

When the pretreatment mode is a part of the cooking mode, cooking is performed by shortening or omitting the time of the water absorption process set as standard in the cooking mode when the pretreatment mode is not selected according to the set time of the pretreatment mode. In a further configuration to run the mode,
Due to the relationship between the pretreatment mode and the cooking mode in which this pretreatment mode is executed on an automatic cooking operation, the time of the water absorption process that is standardly set in the cooking mode can be shortened by the set time of the pretreatment mode. By omitting, the water absorption by the pretreatment in the pretreatment mode set by the user for the time can be reflected in the automatic cooking.

  Further objects and features of the present invention will become apparent from the following detailed description and drawings. Each feature of the present invention can be employed alone or in combination in various combinations as much as possible.

  According to one characteristic of the electric rice cooker of the present invention, the user can feel his or her own taste or preference by setting an extremely simple time such as 5 minutes, 10 minutes,. Pre-treatment such as water absorption for a set time that matches the set, and the automatic cooking that can select the type of cooking such as rice, rice cooking, etc., the user's will is reflected more finely, the user It is possible to easily cope with the unique individual differences. Moreover, since the pretreatment mode is started by the cooking start operation, there is no problem of forgetting the cooking mode start operation.

According to another feature of the electric rice cooker of the present invention, as compared with the case of the one feature, the setting of the pretreatment mode can be confirmed on the same display unit in conjunction with the execution of the cooking mode, and is easy to use. . In particular, the progression of pre-processing mode by the display of the remaining time, it is a separate state relationship progression of the cooking mode, is caused to realize the peculiar cooking state visible any instrument body to a portion superposed state to the user .

  The pre-processing mode cannot be set beyond the upper limit time. According to a further configuration, excessive time setting in which the user's adjustment action by the pre-processing mode is contrary to the intention is prevented in advance so that cooking does not end in failure. Can be.

  The pre-processing mode cannot be set below the lower limit time. According to a further configuration, an excessive time setting in which the user's adjustment action in the pre-processing mode is wasted can be prevented in advance, thereby saving energy and time.

  When the pretreatment mode is a part of the cooking mode, cooking is performed by shortening or omitting the time of the water absorption process set as standard in the cooking mode when the pretreatment mode is not selected according to the set time of the pretreatment mode. According to the further configuration of executing the mode, the water absorption by the pre-processing mode set by the user in the pre-processing mode is reflected in the automatic cooking, and the cooking is finished. Many selection operations such as selection of the type of food can be avoided, and for a specific user, an easy-to-use and low-priced product that omits these many selection functions can be provided.

  Hereinafter, embodiments of the electric rice cooker according to the present invention will be described in detail with reference to FIGS. 1 to 8 to provide an understanding of the present invention.

  The electric rice cooker according to the present embodiment has the basic configuration described above with reference to FIG. 1, but as the heating means 4, the rice cooker 3 is mainly heated by electromagnetic induction to produce the contents. The heating coil 11 to be heated is used, and the heating coil 11 is disposed so as to generate heat at the bottom of the rice cooker 3 and its outer periphery. The heating means 4 includes a heat retaining heater 12 for heating the body of the rice cooker 3, a metal inner lid 13 for closing the mouth of the rice cooker 3 with a seal packing 13a inside the lid 1 for closing the container 2 A shoulder heater 14 for heating at the shoulder portion 2a is provided in combination, and various heating processes at the time of cooking rice and heat retention after cooking are performed. However, the present invention is not limited to this, and the rice cooker 3 and the inner lid 13 may be heated by electromagnetic induction from a heating coil disposed in each part, or the whole may be heated by a heater. It may be a thing.

  The heating coil 11 is subjected to high-frequency driving using the switching function of the IGBT 16 mounted on the driving substrate 15 and is output with a heating capacity necessary at that time. Heating elements such as IGBTs 16 are mounted on the drive substrate 15, and a cooling fan 17 for cooling them is provided in the container body 2. Further, in particular, the IGBT 16 that generates a large amount of heat is brought into contact with the heat sink 18 in order to enhance its cooling effect, thereby facilitating cooling. A control circuit in which a 100 V AC current is directly supplied to the heat retaining heater 12 and the shoulder heater 14 through the power supply circuit 19 and a microcomputer 22 provided inside the operation board 31 provided in the front portion of the driving substrate 15 and the shoulder portion is mounted. Each of the power supplies 23 is supplied with a necessary direct current, and these constitute a control means 6.

  The lid 1 applied to the container body 2 is detachably fitted to the hinge piece 32 pivotally supported so as to be raised and lowered by a hinge pin 131 at the rear part of the container body 2, and is rotated integrally with the hinge piece 32. The upper end of the container 2 can be opened and closed. A spring 33 that biases the lid 1 in the opening direction is exerted on the hinge piece 32 between the hinge piece 32 and the container body 2. A brake mechanism for braking the opening operation by the bias of the spring 33 is provided as necessary, and a lock claw 34 biased by a spring (not shown) is provided so as to lock the lid 1 in a closed position so that the lid 1 does not open freely. Then, the lid 1 is automatically opened by the bias of the spring 33 by rotating the lock claw 34 against the spring.

  The shoulder heater 14 is accommodated in a groove 35 formed on the upper surface of the shoulder portion of the vessel body 2 and is provided with a metal cover 36, and the outer peripheral portion of the inner lid 13 provided inside the lid 1 is in contact with the metal cover 36 and shoulders. The heat of the heater 14 is conducted and the entire opening of the rice cooker 3 is heated uniformly from above. A valve 37 is provided at the center of the lid 1 to release steam appropriately to the outside so that delicious rice can be cooked. The outer wall 41 and the inner wall 42 of the vessel body 2 are connected and integrated at their upper ends by a shoulder member 43 to constitute a vessel made of synthetic resin. Synthetic resin has magnetic permeability, and is effective if the heating coil 11 or the like is provided in a range where the rice cooker 3 is electromagnetically heated, but there is no such effectiveness in other parts, and other members and Can be substituted.

  The lid 1 has a heat insulating structure in which the space between the upper plate 44 and the lower plate 45 made of synthetic resin is filled with a heat insulating material 46, and the valve 37 is inserted into the through hole 47 in the center from the upper side. The steam escape cylinder 48 serving as a knob of the inner lid 13 is elastically engaged so as to be detachable by an elastic bush 49. The body 2 further incorporates a take-up reel 51 for a power cord, and is pivotally supported externally so that a hand handle 52 can be raised and lowered.

  Around the bottom of the inner wall 42 of the vessel body 2, a synthetic resin-made radial coil base 53 is arranged to hold the heating coil 11 from below. A ferrite core 54 is provided in the downward direction formed in each radial part of the coil base 53 to assist the function of the heating coil 11. The temperature sensor 5 passes through the central hole 55 of the inner wall 42 in the central portion of the coil base 53 and contacts the bottom of the rice cooker 3 to detect the temperature of the rice cooker 3.

  As shown in FIG. 2 (a), the operation panel 31 is provided with a liquid crystal display 61 for displaying a menu for cooking and keeping warm, an operation state, a time, and other messages in the central portion. Cooking key to start cooking around and select washing-free rice cooking rice 62 / washing-free rice key 62, reservation key 63 to set the pre-treatment mode for water absorption as cooking pre-treatment in addition to rice cooking time reservation, various Input cancel key 64, heat retention artificially start, heat retention / selection key 65 for selecting a heat retention state, menu key 66 for setting a rice cooking menu, cooking key 67 for selecting rice cooking reason, cooking 1 2, 3, and bread / cooking key 68 for selecting modes such as bread fermentation, baking, and cleaning, hour key 69 for setting time, minute key 70, and other operation keys necessary for various settings. It is provided. The liquid crystal display unit 61 and its surroundings are configured to display a description mode, lighting display, rotation display, etc. of the setting mode, cooking time, reservation time, cooking or reservation remaining time, cooking state, and the like.

  As shown in FIG. 3, the microcomputer 22 performs cooking such as cooking rice and hot spring eggs according to the input from the operation panel 31, based on the temperature information from the temperature sensor 5, the heating coil 11, the insulation heater 12, the shoulder. The heater 14 and the cooling fan 17 are driven via respective drivers 71, 72, 73, 74. For this purpose, the microcomputer 22 has a control means 75 for controlling the cooking and cooking of various menus in each mode as an internal function, and displays the setting state, operation state, elapsed time, remaining time, etc. on the operation panel 31. Like to do. Thereby, the rice cooker 3 in which cooked food such as white rice and water is accommodated in the container 2 with the lid 1 closed, and the heating means 4 is operated in the mode according to the setting to make the rice cooked rice and other rice Ready to cook.

In the present embodiment, as described above, one or more cooking modes for performing cooking such as white rice cooking are provided for each type. In particular, the cooking mode by the cooking start operation of the rice cooking / washless rice key 62 is used. upon execution, it and provided as part of the independent or it the the rice device 3 1 food placed was including the water and rice in a state of being housed in the device body 2 in the state closed lid water etc. the pretreatment of the cooking, only the pre-treatment time set by the user prior to cooking start operation for, it is assumed that having a pretreatment mode, the performing the start operation of the cooking. In the present embodiment, it is applied to the water absorption 1 as a pretreatment for the standard cooking mode in the white rice cooking mode, and each time the reservation key 63 is operated after the setting of the white rice cooking by the menu key 66 in FIG. As shown in FIG. 2A, the selection of various reservations 1, reservation 2, and reservation 3 including water absorption 1, which is one example of preprocessing, is rotated and switched, and the state is shown in FIG. 2A. 101 is rotated. Therefore, when the time is set with the hour key 69 and the minute key 70 as shown in FIG. 4B in the display state of the water absorption 1, the time of the water absorption 1 can be set, and the water absorption as an internal function of the microcomputer 22 shown in FIG. 1 is set as the timer time of timer 102. However, the specific operation is not particularly questioned, and the pretreatment may be any pretreatment including water absorption in cooking using water, or for special pretreatment involving standing or weak heating. Is also applicable. In short, it can include any process that can adjust the cooking finish separately or in part from the standard cooking mode. Here, it is easy to set the reservation time as 5 minutes, 10 minutes, .1 hour,... In this case, as shown in FIG. 5, for example, if the setting is made such that the time is added in increments of 5 minutes by repeated operation of only the minute key 70, the operation is further simplified.

  After setting the pretreatment time as shown in FIG. 4 (b), rice cooking is started by the operation of the rice cooking / washless rice key 62, and the water absorption 1 is started. As shown in a specific example in FIG. 6, the water absorption 1 is performed while all of the heating coil 11, the heat retaining heater 12 and the shoulder heater 14 are turned off until the water absorption 1 timer expires. When the water absorption 1 timer expires, as shown in FIG. 4 (b), the water absorption 1 ends and the process shifts to normal white rice cooking, that is, standard setting rice cooking.

  Thus, when the time setting of the pre-processing mode is performed by the user at the time of starting cooking, the control means 75 is different from the cooking mode as in this example, or as a part thereof, such as the water absorption 1. After the pre-processing, the cooking mode is advanced, so that the user can feel his own feeling corresponding to the type of cooking and the purpose of cooking, such as new rice, old rice, old used rice, brown rice, germinated brown rice, or the taste of the finish It is possible to achieve pre-treatment such as water absorption 1 on automatic cooking operations such as cooking rice for the time set freely according to the time, and reflect your will in detail on the completion of cooking such as cooking rice . As a result, the user can perform pre-processing such as water absorption for a set time according to his / her own feeling or preference by setting extremely simple time such as 5 minutes, 10 minutes,. In addition, automatic cooking that allows you to select the type of cooking such as rice, rice cooking, etc. is reflected in your will more precisely, including the ability to set a short time, and the user's unique individual Can easily handle differences. Moreover, since the pretreatment mode is started by the cooking start operation, there is no problem that the cooking operation is forgotten forever because the cooking mode is forgotten. Further, since the reservation key 63, the hour key 69, and the minute key 70 are shared for setting the preprocessing mode, no special operation key is required. Moreover, the time setting by the pre-processing mode can also be set as adjustment time, such as matching another cooking and completion time. Furthermore, since the temperature of the cooked product such as rice and water and the temperature detected by the temperature sensor 5 are stabilized during the pretreatment mode, erroneous determination of the initial water temperature for cooking progress can be prevented, or the water temperature change after heating This makes it possible to improve the determination accuracy when performing the total number determination.

Moreover, in this Embodiment, the setting time or both remaining time of both cooking mode and pre-processing mode is displayed on the same display part. Specifically, in the liquid crystal display unit 61 shown in FIG. 2A, first, at least one character display 103 such as “white rice” indicating the white rice cooking mode according to the menu setting and the numerical value of the set cooking time on the time display unit 114 After the display, when the operation of setting the water absorption time is performed, the liquid crystal display unit 61 switches to the water absorption time setting mode shown in FIG. 2B, and the time according to the character display of “water absorption” and the time setting operation When the numerical value of the display is shown and the rice cooking is started after the setting is completed, the liquid crystal display unit 61 displays “after” on the character display 103 of “white rice” and the character display 104 of “water absorption” shown in FIG. With the numerical display of the remaining time of the water absorption 1 including the character display 105, the remaining time is displayed in the pretreatment mode of the water absorption 1 in the white rice cooking mode. When the pre-processing mode is finished and the mode is shifted to the white rice cooking mode, the remaining time display in the white rice cooking mode is changed while the character display 104 of “water absorption” shown in FIG. In addition, when the process of water absorption 1 and the process of white rice cooking partially overlap, simultaneous visual recognition can be performed if both menu characters and the remaining time value are written together. However, it can also be displayed alternately. As described above, the set time or the remaining time of both the cooking mode and the preprocessing mode are displayed on the same display unit, and the user can confirm the setting of the preprocessing mode made by the user together with the execution of the cooking mode. , the progression of pre-processing mode by the display of the remaining time, it is a separate state relationship progression of the cooking mode, there instrument body visually recognized in a part overlapped state. For this reason, the user can feel a peculiar cooking state according to the setting.

  Here, if the pre-processing mode is not allowed to be set beyond the upper limit time, the pre-processing mode is a specific adjustment action of cooking according to the user's actual feeling or preference for cooking mode such as standard white rice cooking, An excessive time setting that cannot be handled in the cooking mode and is contrary to the intention can be prevented in advance by setting the upper limit time. In the setting example shown in FIG. 5, when the time exceeds the upper limit time, no further setting operation is accepted, and the water absorption 1 timer is set to the upper limit time. However, it is preferable to display a message on the liquid crystal display unit 61 or the like so that the user is aware of this automatic response together with the reason. In addition, the upper limit time is preferably about 1 person, and in cooking rice with seasoning such as cooked rice or wild vegetables, the seasoning is likely to sink and burn, so it is preferable to shorten the upper limit time to about 15 minutes. is there.

  Although not shown, the pre-processing mode can be set not to be set below the lower limit time. In this way, the pre-processing mode is a peculiar adjustment action of cooking according to the user's actual feeling and preference for cooking modes such as standard rice cooking, but the time setting is so small that no substantial change is seen Can be prevented in advance by setting the lower limit time, which may cause distrust to the user.

  Finally, according to the flowchart shown in FIG. 7, a more detailed control example in the white rice cooking mode will be described with reference to the time chart shown in FIG. In FIG. 7, when the rice cooking mode is selected and set by the menu key 66 and the pretreatment mode of the water absorption 1 is selected and the time t 1 is set by the reservation key 63, the rice cooking / washing rice key 62 is operated. The control means 75 starts cooking rice, and first proceeds with the operation of the water absorption 1 for the set time t1 in the state where the heating coil 11, the heat retaining heater 12, and the shoulder heater 14 are all turned off, and when the time t1 elapses, it is standard. It shifts to the set rice cooking mode, the initial water temperature is determined while the heating coil 11, the heat retaining heater 12, and the shoulder heater 14 are all kept off, and the temperature maintenance time t2 of the water absorption 2 is set based on the determined water temperature. Next, heating with the heating coil 800W, the heat retaining heater 0/16, and the shoulder heater 6/16 is continued until the temperature at which water absorption 2 is performed reaches 50 ° C., and thereafter, the output is turned on at or below the water absorption temperature. The temperature of the water absorption 2 is maintained for a predetermined time t2 in the off state. When the water absorption 2 is completed, the heating by the heating coils 1150 to 920 W, the heat retaining heater 0/16, and the shoulder heater 6/16 is continuously raised until boiling. After boiling, the heating in the heating coils 8/16, 700 W, the heat retaining heater 10/16, and the shoulder heater 6/16 is continued until the water is exhausted and the temperature is rapidly increased. So-called cooking. After cooking, steaming heating of about 110 ° C is performed for a predetermined time by heating with heating coil 800W, heat insulation heater 10/16, shoulder heater 6/16, and when this is completed, the temperature is lowered to 72 ° C and transferred to heat insulation to maintain it. is doing.

  In this heat retention, when the heat retention temperature is 72 ° C. or higher, the heating coil, the heat insulation heater, and the shoulder heater are turned off, and when the heat retention temperature is lower than 72 ° C., the output is the ratio of the heating coil 8/16, the heat insulation heater and the shoulder heater 6/16. Then, while repeating the heating at the IH 70% drive and maintaining the heat retention temperature 72 ° C., the determination of the presence or absence of the rice cooker 3 and the presence or absence of the cancel key operation is repeated. When no rice cooker is detected, the pan is informed and the power is turned off. Further, when the cancel key operation is detected, the heat retention mode is terminated and the apparatus is on standby. However, since no other control is entered during the pretreatment mode of the water absorption 1, such no pan detection or cancel detection is not performed. This is unnecessary because the cooking mode is a cooking progress based on a strong will by setting a user-specific preprocessing mode. However, if the rice cooker 3 is not set, the setting of the pre-processing mode may not be accepted at the start of cooking rice or the like.

  When the pretreatment mode is a part of the cooking mode, the time t2 of the water absorption process that is standardly set in the cooking mode when the pretreatment mode is not selected is shortened according to the set time t1 of the pretreatment mode. If omitted and the cooking mode is executed, from the relationship between the pretreatment mode and the cooking mode in which this pretreatment mode is executed on an automatic cooking operation, the water absorption process set as standard in the cooking mode is performed. By shortening or omitting the time according to the set time of the pretreatment mode, the water absorption by the pretreatment in the pretreatment mode set by the user can be reflected in the automatic cooking. In this case, or separately, the temperature can be raised continuously or stepwise with a heating operation from the water temperature to the room temperature and from the room temperature to the temperature of the water absorption 2 during the set time of the water absorption 1 timer. .

  Moreover, the timing which puts a tool at the time of completion | finish of the water absorption 1 timer at the time of cooking rice cooking can also be alert | reported by the time setting of the water absorption 1 timer.

  INDUSTRIAL APPLICABILITY The present invention can be practically used for cooking boiled food in an electric rice cooker, and can easily achieve a user's specific requirements.

It is electric rice cooker sectional drawing which concerns on embodiment of this invention. It is a top view which shows the operation panel of the electric rice cooker of FIG. It is a block diagram which shows the control circuit of the electric rice cooker of FIG. It is a flowchart which shows the setting operation example (a) of the water absorption 1 timer mode in the electric rice cooker of FIG. 1, and its time setting operation example (b). 5 is a flowchart showing another time setting example different from FIG. 4. It is a flowchart of the water absorption 1 subroutine of FIG. It is a detailed flowchart of FIG.4 (b). It is a time chart which shows the example of heating control corresponding to the control of FIG. It is a time chart which shows the example of heating control of the rice cooking mode in the electric rice cooker of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Lid 2 Body 3 Rice cooker 4 Heating means 5 Temperature sensor 6 Control means 11 Heating coil 12 Thermal insulation heater 13 Inner lid 14 Shoulder heater 22 Microcomputer 31 Operation panel 62 Rice cooking / washless key 68 Pan / cooking key 61 Liquid crystal display part 66 Menu key 69 Hour key 70 Minute key

Claims (5)

A rice cooker that cooks rice by heating in a vessel with the lid closed, a heating unit that performs the heating, a temperature sensor that detects the temperature of the rice cooker, and a rice cooker that is based on the rice cooker temperature detected by the temperature sensor In an electric rice cooker equipped with a control means for performing rice cooking by controlling in a mode,
Cooking including water and rice, which is provided independently or as part of one or more cooking modes in which cooking including rice cooking is performed by type and cooking mode by the cooking start operation. the pre-treatment of the water, such as cooking rice instrument put things in a state accommodated in a vessel body of the closed state the lid, only the pre-treatment time set by the user before the start of cooking operation for, prior to performing the cooking start operation electric rice cookers, characterized in that it comprises a processing mode, a. A rice cooker that cooks rice by heating in a vessel with the lid closed, a heating unit that performs the heating, a temperature sensor that detects the temperature of the rice cooker, and a rice cooker that is based on the rice cooker temperature detected by the temperature sensor In an electric rice cooker equipped with a control means for performing rice cooking by controlling in a mode,
Cooking including water and rice, which is provided independently or as part of one or more cooking modes in which cooking including rice cooking is performed by type and cooking mode by the cooking start operation. the pretreatment cooking such as water in a state accommodated in a vessel body of a closed state lid rice vessel containing the object, only the pre-treatment time set by the user prior to cooking start operation for, before performing the start operation of the cooking It has a processing mode, an electrical rice cookers and displaying cooking mode and pre-processing mode both set time or and the remaining time on the same display unit. The electric rice cooker according to any one of claims 1 and 2, wherein the pretreatment mode cannot be set beyond the upper limit time. The electric rice cooker according to any one of claims 1 and 2, wherein the pretreatment mode cannot be set below a lower limit time. When the pretreatment mode is a part of the cooking mode, cooking is performed by shortening or omitting the time of the water absorption process set as standard in the cooking mode when the pretreatment mode is not selected according to the set time of the pretreatment mode. The electric rice cooker of any one of Claims 1-4 which perform a mode.

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