JP2017077352A - Electric rice cooker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric rice cooker capable of performing selective rice cooking according to brands of rice easily and appropriately by comparatively easy control.SOLUTION: An electric rice cooker includes rice cooking means 100 capable of sequentially performing a pre-cooking step, a first cooking step, a second cooking step, a first steaming step, an additional cooking step, and a second steaming step, control means 102 for controlling the cooking means, and brand selection means 101 for selecting a brand of rice to be cooked. The control means controls the cooking means based on the heat quantity set by heat quantity setting means 150 for setting the heat quantity to be given in the first cooking step and the second cooking step according to the brand of rice selected by the brand selection means.SELECTED DRAWING: Figure 4

Description

  This embodiment relates to an electric rice cooker.

  In recent years, with the diversification of food tastes, various new rice brands (such as Yumepirika and Hinohikari) with different tastes have been developed.

  Various techniques relating to an electric rice cooker, such as changing the rice cooking process according to the brand of rice, have been proposed.

Japanese Patent No. 4214901

  In addition, there is a problem in that it is difficult to accurately cook rice for each brand having different hardness and stickiness due to insufficient control of the rice cooking process according to the brand of rice.

  This embodiment provides an electric rice cooker that can easily and accurately perform rice cooking according to rice brands with relatively simple control.

  According to one aspect of the present embodiment, the rice cooking that can sequentially execute the pre-cooking process, the first cooking process, the second cooking process, the first steaming process, the additional cooking process, and the second steaming process. Means, a control means for controlling the rice cooking means, and a brand selection means for selecting a brand of rice to be cooked, the control means according to the brand of rice selected by the brand selection means, An electric rice cooker for controlling the rice cooking means is provided based on the heat quantity set by the heat quantity setting means for setting the heat quantity to be applied in the first cooking process and the second cooking process.

  According to the present embodiment, it is possible to provide an electric rice cooker that can easily and accurately perform rice cooking according to rice brands with relatively simple control.

The perspective view which shows the whole structure of the electric rice cooker which concerns on embodiment. The perspective view which shows the inside of the electric rice cooker which concerns on embodiment. The top view which shows the operation panel of the electric rice cooker which concerns on embodiment. The functional block diagram which shows the function structure of the electric rice cooker which concerns on embodiment. The graph which shows an example of the rice cooking process in the electric rice cooker which concerns on embodiment. The chart figure which shows the relationship between the brand of rice and taste. The figure which shows the numerical example of the total number determination in the electric rice cooker which concerns on embodiment. The chart which shows the Example of each brand etc. in the electric rice cooker which concerns on embodiment, and a rice cooking process. The chart which shows correspondence of the brand registered beforehand and other brands. The flowchart which shows the process sequence of the rice cooking process in the electric rice cooker which concerns on embodiment. The flowchart which shows the continuation of the rice cooking process shown in FIG.

  Next, embodiments will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals.

  In addition, the embodiments described below exemplify apparatuses and methods for embodying the technical idea, and do not specify the material, shape, structure, arrangement, etc. of the component parts as follows. . This embodiment can be modified in various ways within the scope of the claims.

[Overall configuration of electric rice cooker]
With reference to FIGS. 1-3, the whole structure of the electric rice cooker 1 which concerns on embodiment is demonstrated.

  Here, FIG. 1 is a perspective view showing the entire configuration of the electric rice cooker 1 according to the embodiment, FIG. 2 is a perspective view showing the inside thereof, and FIG. 3 is a plan view showing an operation panel of the electric rice cooker 1. is there.

  As shown in FIG. 1 etc., the electric rice cooker 1 which concerns on embodiment is comprised from the resin-made main body 2 and the cover part 10 provided so that opening and closing is possible via the hinge part 2a.

  A hook button 3 is provided on the outer wall portion on the front side of the main body 2 to press the hook 11 that engages with the lid 10 and release the engaged state when the lid 10 is opened.

  Below the side wall of the main body 2, there is provided an insertion port 4 for attaching a power cable plug (not shown) detachably with a magnet.

  Moreover, the handle | steering_wheel 5 for carrying the electric rice cooker 1 is provided in the side wall part of the main body 2 so that rotation is possible.

  A bottomed cylindrical portion 16 capable of accommodating the inner hook 30 is formed in the main body 2.

  A heater 13 for heating the inner pot 30 formed of metal or the like and a temperature sensor SN1 for detecting the temperature of the inner pot 30 are provided at the bottom of the cylindrical portion 16.

 In addition, a control unit or the like as a control unit configured by a microcomputer or the like is accommodated in the main body 2.

  As shown in FIGS. 1 and 3, an operation panel 7 as a brand selection unit is provided on the front side of the upper surface of the lid 10.

  In the vicinity of the right side of the operation panel 7, a rice cooking button 8 for starting rice cooking is arranged. Note that a lamp (LED or the like) 8a that is lit during execution of the rice cooking mode is provided in the rice cooking button 8.

  In the vicinity of the left side of the operation panel 7, a heat retention / cancellation button 9 for operating the heat retention start and stop is arranged. Note that a lamp (LED or the like) 9 a that is turned on during the heat insulation is provided in the heat insulation / cancellation button 9.

  Between the rice cooking button 8 and the heat retention / cancellation button 9, a reservation button 41 for setting a rice cooking reservation mode and an hour / minute button for a clock or a reservation timer are arranged. In the reservation button 41, a lamp (LED or the like) 41a that is turned on when the reservation is confirmed is provided.

  Details of the operation panel 7 will be described later.

  A steam port cap 6 is detachably provided on the rear end side of the upper surface of the lid 10.

  As shown in FIG. 2, a shaft 15 to which the inner lid 20 is detachably attached is provided at substantially the center inside the lid portion 10.

  Further, in the vicinity of the shaft 15, a steam port 14 for releasing steam to the outside is formed.

  The inner lid 20 is formed into a disk shape with metal or the like, and a packing 21 is detachably attached to the peripheral edge.

  A rubber mounting portion 22 that can be engaged with the shaft 15 is provided at the center of the inner lid 20.

  Further, a steam port packing rubber 23 is provided at a position facing the above-described steam port 14.

[Operation panel configuration]
With reference to FIG. 3, the structural example of the operation panel 7 with which the electric rice cooker 1 is provided is demonstrated.

  In the center of the operation panel 7, a timer display unit 7C configured by a liquid crystal display device or the like for displaying the current time, timer set time, remaining time, and the like is disposed.

  In the vicinity of the timer display portion 7C, a soaked rice display portion 7D for displaying whether or not it is the soaked “soaked rice” is disposed.

  On the left side of the timer display section 7C, there is a character print with multiple rice cooking modes such as “washless rice”, “white rice”, “rice cooked”, “rice porridge”, “brown rice”, “boiled / steamed”, etc. Part 50 is arranged. Moreover, the triangular lighting part L1 comprised with LED etc. which identify each rice cooking mode adjacent to each description is provided.

  Further, on the left side of the lighting part L1, a menu button 7A is provided as a selection switch for selecting one of the above-mentioned rice cooking modes. Each time the menu button 7A is pressed, the menu (rice cooking mode) is switched, and the lighting position of the triangular lighting portion L1 is changed.

  Thereby, it can be confirmed with sufficient visibility which rice cooking mode is selected by the lighting position of the triangular lighting part L1.

  On the right end side of the timer display portion 7C, a character printing portion 51 on which a plurality of rice brands such as “Koshihikari”, “Akitakomachi”, “Tsuhime”, “Yumepirika”, “Hitomebori”, “Hinohikari”, etc. are written. Is arranged. Further, adjacent to each notation, there is provided a triangular lighting portion L2 composed of an LED or the like for identifying each brand.

  Furthermore, a rice brand button 7B as a selection switch for selecting one of the brands described above is provided on the right side of the lighting portion L2. Each time the rice brand button 7B is pressed, the brand is switched, and the lighting position of the triangular lighting portion L2 is changed.

  Thereby, it can be confirmed with high visibility which brand is selected by the lighting position of the triangular lighting portion L2.

[Functional configuration of electric rice cooker]
With reference to the functional block diagram of FIG. 4, the functional structure of the electric rice cooker 1 which concerns on this Embodiment is demonstrated.

  As shown in FIG. 4, the electric rice cooker 1 which concerns on this Embodiment is the pre-cooking process, the 1st cooking process, the 2nd cooking process, the 1st steaming process, the additional cooking process, and the 2nd cooking process. The rice cooking means 100 capable of sequentially performing the steaming process, the control means 102 for controlling the rice cooking means, and the brand selection means 101 for selecting the brand of rice to be cooked, the control means 102 is a brand selection means 101 According to the selected rice brand, based on the amount of heat (power (wattage)) set by the amount-of-heat setting means 150 for setting the amount of heat to be applied in the first cooking step and the second cooking step, It is comprised so that the rice cooking means 100 may be controlled.

  In addition, the control means 102 which controls the rice cooking means 100, and the power supply circuit 200 which supplies the electric power of a predetermined voltage to each structural member from 100V AC power supply 201 are provided.

  The rice cooking means 100 includes the heater 3 that heats the inner pot 30 described above, a temperature sensor SN1 that detects the temperature of the inner pot 30, and the like.

  As described above, the brand selection means 101 is a character in which a plurality of rice cooking modes such as “no-wash rice”, “white rice”, “cooking”, “rice porridge”, “brown rice”, “boiled / steamed”, etc. are written. Printing section 50, character printing section 51 with a plurality of rice brands such as “Koshihikari”, “Akitakomachi”, “Tsukihime”, “Yumepirika”, “Hitomebori”, “Hinohikari”, etc., menu button 7A and rice A selection switch composed of brand buttons 7B, a triangular lighting section L1 composed of LEDs for identifying each rice cooking mode, a triangular lighting section L2 composed of LEDs for identifying each brand, etc. The operation panel 7 is configured to be performed.

  The control means 102 is composed of a microcomputer, and in the first cooking process and the second cooking process, by cooperation of hardware such as a CPU and software (program) based on the detection result of the temperature sensor SN1 and the like. A heat amount setting means 150 for setting a heat amount (electric power) to be applied, a combined number determination means 151, and the like are configured.

  Further, the microcomputer as the control means 102 includes storage means 152 constituted by a ROM, a flash memory, or the like, and stores data relating to each brand and data relating to each process corresponding to each brand as a data table 153 in advance. .

  In addition, when a rewritable storage means such as a flash memory is provided, additional data such as a software keyboard that can additionally record data on brands other than the brand stored in advance and data on each process according to brands other than the brand Means 154 may be provided. Thereby, optimal rice cooking can be performed according to a brand.

  In addition, the storage unit 152 can include a data table 153 in which brands stored in advance are associated with other brands. Thereby, the optimal rice cooking according to another brand can be performed easily.

[Rice cooking process of electric rice cooker]
In the electric rice cooker 1 having the above-described configuration, the rice cooking process shown in the graph of FIG. 5 is performed by the rice cooking means 100 based on the control of the microcomputer 102 as the control means.

  In the example shown in FIG. 5, first, the pre-cooking process which is a preheating process maintained at about 20-60 degreeC is implemented between 0 to about 15 minutes of the rice cooking process start. Here, the temperature indicates the actual temperature in the inner pot 30.

  Next, a first cooking step of heating to about 60 to 100 ° C. is performed for about 15 to about 19 minutes.

  Then, the 2nd cooking process hold | maintained at about 100 degreeC for about 19 to about 32 minutes is implemented.

  Next, during a period of about 32 to about 42 minutes, a first steaming step is performed in which the mixture is once heated to about 105 ° C and then gradually cooled to about 100 ° C.

  During the period of about 42 to 44 minutes, an additional cooking step of heating to about 105 ° C. is performed.

  And the 2nd steaming process gradually annealed from about 105 degreeC to about 100 degreeC at the end is implemented for several minutes, and a rice cooking process is completed.

[About the brand and taste of rice]
Here, the relationship between rice brands and taste is shown in the chart of FIG.

  In the example shown in FIG. 6, the brands “Koshihikari”, “Hinohikari”, and “Akitakomachi” are relatively tight in terms of taste, and the hardness of rice belongs to a relatively hard category.

  The brands “Yumepirika”, “Mori no Kumasan”, “Hitomebore” and “Tsukihime” are relatively tight in terms of taste and the hardness of rice belongs to a relatively soft category.

  The brands “Nana Tsuboshi”, “Haenuki” and “Mashigura” are relatively light in terms of taste and the hardness of rice belongs to a relatively hard category.

  In addition, the brand “Sasanishiki” is relatively light in terms of taste, and the hardness of rice belongs to a relatively soft category.

  Thus, because the taste and physical properties differ depending on the brand of rice, in the electric rice cooker 1 according to the present embodiment, according to the brand of rice selected by the brand selection means 101 configured by the operation panel 7 or the like, The amount of heat (electric power) applied in the first cooking step and the second cooking step described above is set by the heat amount setting means 150, and the rice cooking means 100 is controlled by the control means 102 based on the set amount of heat. Thus, the cooking for each brand is accurately performed.

  In addition, the electric rice cooker 1 according to the present embodiment has a plurality of “washed rice”, “white rice”, “rice cooked”, “rice porridge”, “brown rice”, “boiled / steamed” and the like as described above. It has a plurality of rice cooking modes according to the rice cooking mode.

  And the control means 102 is controlling to change the determination conditions of the total number determination means 151 (refer FIG. 4) which performs the total number determination of the rice to cook according to each rice cooking mode. Thereby, according to each rice cooking mode (rice cooking aspects, such as cooking and rice crackers), the hardness etc. of the rice after cooking can be optimized.

  Moreover, the control means 102 can control to perform the total number determination by the total number determination means 151 based on the temperature rise time (t) of the predetermined temperature range in the first cooking step described above. Thereby, the control program can be simplified and the cost can be reduced. The predetermined temperature range may be 30 ° C. from 63 ° C. to 93 ° C. In addition, about these temperatures, although it changes with the wall thickness, material, etc. of the inner pot 30, the reason for having set this temperature is an area | region which shows a substantially linear temperature rise, without being influenced by precooking or just before boiling. Because. A specific example of the total number determination will be described later.

[About total number judgment]
With reference to FIG. 7, the numerical example of the total number determination in the electric rice cooker 1 which concerns on embodiment is demonstrated.

  Note that the “total number determination” referred to here is a predetermined value in the first cooking step described above even when the content (total number) of rice put into the inner pot 30 is unknown or unclear. That is, an accurate internal capacity (total number) is determined based on the temperature rise time in the temperature range. By performing such a combined number determination, an optimal amount of heat (wattage) can be set according to the rice brand and combined number, and more accurate cooking can be performed.

  In the embodiment (a) of FIG. 7, when the rice cooking mode is “normal rice cooking”, the rice brand is “Koshihikari”, “Akitakomachi”, etc., and the wattage is “450 W”, the temperature sensor SN1 is set in the first cooking process. If the time from 63 ° C. to 93 ° C. exceeds 130 seconds, the total number is determined to be “3”.

  When the time from 63 ° C. to 93 ° C. in the first cooking process is 130 seconds or less, the total number is determined as “2 go”.

  When the time from 63 ° C. to 93 ° C. in the first cooking step is 119 seconds or less, the total number is determined as “1 go”.

  In Example (b), when the cooking mode is “normal cooking”, the rice brands are “Yumepirika”, “Tsuhime”, “Hinohikari”, and the wattage “400 W”, 63 ° C. in the first cooking step When the time from the temperature to 93 ° C. exceeds 152 seconds, the total number is determined as “3 go”.

  When the time from 63 ° C. to 93 ° C. in the first cooking step is 152 seconds or less, the total number is determined as “2 go”.

  When the time from 63 ° C. to 93 ° C. in the first cooking step is 141 seconds or less, the total number is determined as “1 go”.

  In Example (c), when the rice cooking mode is “energy saving” and the rice brands are all wattage “250 W”, the time from 63 ° C. to 93 ° C. in the first cooking process exceeds 423 seconds. Determines that the total number is “3”.

  When the time from 63 ° C. to 93 ° C. in the first cooking step is 423 seconds or less, the total number is determined as “2 go”.

  When the time from 63 ° C. to 93 ° C. in the first cooking step is 311 seconds or less, the total number is determined as “1 go”.

  In Example (d), when the rice cooking mode is “rice cooked” or “brown rice”, and the rice brands are all wattage “400 W”, the time from 63 ° C. to 93 ° C. in the first cooking process is 126 seconds. In the case of exceeding, the total number is determined as “2 go”.

[Examples of the rice cooking process]
Next, with reference to FIG. 8, each brand etc. in the electric rice cooker 1 which concerns on embodiment, and the Example (a)-(f) of a rice cooking process are demonstrated.

  The example (a) of FIG. 8 is a rice cooking process for 1 to 3 go of the brand “Koshihikari”.

  In addition, in the case of 2 brands "Koshihikari", the pre-cooking process and the first cooking process are the same as the 3 cooking process, the second cooking process is "123 ° C / 360W", from the first steaming process The second steaming step is common with 3 go.

  In addition, in the case of the brand “Koshihikari”, the pre-cooking process and the first cooking process are the same as the third cooking, the second cooking process is “120 ° C./310 W”, from the first steaming process. The second steaming step is common with 3 go.

  The example (b) of FIG. 8 is a rice cooking process for 1 to 3 go of the brand “Yumepirika”.

  In the case of the brand “Yumepirika”, the pre-cooking process is “15 minutes / 53 ° C./450 W”, the first cooking process is “110 ° C./400 W”, and the second cooking process is “120”. The first steaming process is “11 minutes / 0 W”, the additional cooking process is “1 minute / 250 W”, and the second steaming process is “3 minutes / 0 W”.

  In addition, in the case of brand 2 “Yumepirika”, the pre-cooking process and the first cooking process are the same as the 3 cooking, the second cooking process is “120 ° C./360 W”, the first steaming process The second steaming process is common with 3go.

  In addition, in the case of 1 go of brand “Yumepirika”, the pre-cooking process and the first cooking process are the same as 3 go, the second cooking process is “120 ° C./310 W”, the first steaming process The second steaming process is common with 3go.

  The example (c) in FIG. 8 is a rice cooking process for 1 to 3 go of the brand “Tsuyahime”.

  In the case of three brands “Tsunahime”, the pre-cooking process is “15 minutes / 53 ° C./450 W”, the first cooking process is “100 ° C./400 W”, and the second cooking process is “124”. The first steaming process is “11 minutes / 0 W”, the additional cooking process is “1 minute / 250 W”, and the second steaming process is “3 minutes / 0 W”.

  In addition, in the case of 2 brands of brand “Tsuyahime”, the pre-cooking process and the first cooking process are the same as the 3 cooking processes, the second cooking process is “122 ° C./280 W”, the first steaming process The second steaming process is common with 3go.

  In addition, in the case of brand 1 “Tsuyahime”, the pre-cooking process and the first cooking process are the same as the 3 cooking process, the second cooking process is “120 ° C./250 W”, the first steaming process The second steaming process is common with 3go.

  The example (d) of FIG. 8 is a rice cooking process for 1 to 3 go of the brand “Hinohikari”.

  In the case of 3 brands “Hinohikari”, the pre-cooking process is “15 minutes / 53 ° C./450 W”, the first cooking process is “100 ° C./400 W”, and the second cooking process is “122 ° C.” / 360W ", the first steaming process is" 11 minutes / 0W ", the additional cooking process is" 1 minute / 250W ", and the second steaming process is" 3 minutes / 0W ".

  In addition, in the case of two brands “Hinohikari”, the pre-cooking process and the first cooking process are the same as the third cooking, the second cooking process is “121 ° C./300 W”, from the first steaming process The second steaming step is common with 3 go.

  Moreover, in the case of 1 go of the brand “Hinohikari”, the pre-cooking process and the first cooking process are the same as the 3 go, the second cooking process is “120 ° C./280 W”, from the first steaming process. The second steaming step is common with 3 go.

  The example (e) of FIG. 8 is a rice cooking process for 1 go to 3 go when the rice cooking mode is “energy saving”.

  In the case of “Energy Saving”, the pre-cooking process is “15 minutes / 0 W”, there is no substantial preheating, the first cooking process is “100 ° C./250 W”, and the second cooking process is “122 ° C./250 W”, the first steaming process is “11 minutes / 0 W”, the additional cooking process is “1 minute / 0 W”, and the second steaming process is “3 minutes / 0 W”.

  Moreover, in the case of 2 go of "energy saving", the pre-cooking process and the first cooking process are the same as the 3 go, the second cooking process is "119 ° C / 250W", the first steaming process from the first steaming process The steaming process of 2 is common to 3 go.

  Moreover, in the case of 1 combination of “energy saving”, the pre-cooking process and the first cooking process are the same as those of the 3 cooking process, the second cooking process is “118 ° C./250 W”, and the first cooking process starts from the first steaming process. The steaming process of 2 is common to 3 go.

  The example (f) of FIG. 8 is a rice cooking process for 1 go to 3 go when the rice cooking mode is “fast cook”.

  In the case of 3 “fast cooking”, there is no pre-cooking process, the first cooking process is “100 ° C./450 W”, the second cooking process is “125 ° C./350 W”, the first steaming The process is “11 minutes / 0 W”, the additional cooking process is “1 minute / 250 W”, and the second steaming process is “3 minutes / 0 W”.

  In addition, in the case of 2 go of “quick cooking”, the pre-cooking process and the first cooking process are the same as 3 go, the second cooking process is “123 ° C./310 W”, from the first steaming process The second steaming step is common with 3 go.

  Moreover, in the case of 1 go of "quick cooking", the pre-cooking process and the first cooking process are the same as 3 go, the second cooking process is "120 ° C / 280W", from the first steaming process The second steaming step is common with 3 go.

[Response to other brands]
When cooking rice of a brand other than the brands registered in advance, it is performed based on a correspondence table as shown in FIG. Specifically, when cooking rice "Aichi no Kaori" as another brand, the user refers to this correspondence table, selects the brand "Koshihikari" registered in advance, and then performs rice cooking .

  Further, the correspondence table shown in FIG. 9 can be stored as a data table in the storage means 152 constituted by a ROM, a flash memory or the like as shown in FIG.

  When the storage unit 152 is configured by a flash memory or the like that can be additionally written, information on other brands can be added by using the additional writing unit 154. Thereby, it can respond also to the rice cooking of the brand rice newly commercialized.

[Processing procedure for cooking rice]
Next, with reference to the flowchart of FIG. 10 and FIG. 11, the example of the process sequence of the rice cooking process performed with the electric rice cooker 1 which concerns on embodiment is demonstrated.

  In this process, first, the rice cooking mode is selected by operating the operation panel 7 in step S10.

  In step S11, it is determined whether “rice porridge” and “boiled / steamed” with no combined number are selected as the rice cooking mode. If “Yes”, the process proceeds to step S12.

  In step S12, a corresponding rice cooking process (details are omitted) is performed and the process is terminated.

  On the other hand, if “No” is determined in step S11, the process proceeds to step S13, where it is determined whether “cooking” is selected as the rice cooking mode. If “Yes”, the process proceeds to step S14. .

  In step S14, a pre-cooking process is implemented, it transfers to step S15, and a cooking process is started.

  In step S16, it is determined whether or not the sensor temperature is 63 ° C. or lower. If “No”, the rice cooking amount “1 go”, which is the minimum possible number of rice cookers controlled by the electric rice cooker 1, is determined. The total number is determined to be cooked rice. As a result, the control content corresponding to “1 go” shown in FIGS. 7 and 8 is applied.

  On the other hand, if it is determined as “Yes”, the process proceeds to step S18, and the time counting is started from the time when the sensor temperature reaches 63 ° C.

  Next, in step S19, the time counting is terminated when the sensor temperature reaches 93 ° C.

  In step S20, it is determined whether or not the temperature rise time t based on the time count is 126 seconds or less, and in the case of “Yes”, it is determined that the amount of cooking rice is “1 go”. As a result, the control content corresponding to “1 go” shown in FIGS. 7 and 8 is applied.

  Moreover, when it determines with "No", it determines with the amount of rice cooking being "2 go" by step S22. Thereby, the control content corresponding to “2 go” shown in FIG. 7 and FIG. 8 is applied.

  On the other hand, if “No” is determined in step S13, the process proceeds to step S23, and it is determined whether “energy saving” is selected as the rice cooking mode. If “Yes”, the process proceeds to step S24. To do.

  In step S24, a pre-cooking process is implemented, it transfers to step S25, and a cooking process is started.

  In step S26, it is determined whether or not the sensor temperature is 63 ° C. or lower. In the case of “No”, the rice cooking amount “1 go”, which is the minimum total number that can be controlled by the electric rice cooker 1, is determined. The total number is determined to be cooked rice. As a result, the control content corresponding to “1 go” shown in FIGS. 7 and 8 is applied.

  On the other hand, if “Yes” is determined, the process proceeds to step S <b> 28, and time counting is started when the sensor temperature reaches 63 ° C.

  Next, in step S29, the time counting is finished when the sensor temperature reaches 93 ° C.

  In step S30, it is determined whether or not the temperature rise time t based on the time count is 311 seconds or less. If “Yes”, it is determined in step S31 that the amount of cooked rice is “1 go”. As a result, the control content corresponding to “1 go” shown in FIGS. 7 and 8 is applied.

  If “No” is determined, the process proceeds to step S32 to determine whether or not 311 seconds <t ≦ 423 seconds.

  And when a determination result is "Yes", it transfers to step S33 and it determines with the amount of rice cooking being "2 go." Thereby, the control content corresponding to “2 go” shown in FIG. 7 and FIG. 8 is applied.

  Moreover, when a determination result is "No", it transfers to step S34 and it determines with the amount of rice cooking being "3 go." Thereby, the control content corresponding to “3 go” shown in FIGS. 7 and 8 is applied.

  On the other hand, if “No” is determined in step S23, the process proceeds to step S35, where, for example, it is determined whether or not a certain rice brand “I” is selected. Control goes to step S36.

  In step S36, a pre-cooking process is implemented, it transfers to step S37, and a cooking process is started.

  In step S <b> 38, it is determined whether or not the sensor temperature is 63 ° C. or less. The total number is determined to be cooked rice. As a result, the control content corresponding to “1 go” shown in FIGS. 7 and 8 is applied.

  If “Yes” is determined, the process proceeds to step S40, and the time counting is started from the time when the sensor temperature reaches 63 ° C.

  Next, in step S41, the time counting is finished when the sensor temperature reaches 93 ° C.

  In step S42, it is determined whether or not the temperature rise time t based on the time count is 141 seconds or less. If “Yes”, it is determined in step S43 that the amount of cooked rice is “1 go”. As a result, the control content corresponding to “1 go” shown in FIGS. 7 and 8 is applied.

  If “No” is determined, the process proceeds to step S44 to determine whether 141 seconds <t ≦ 152 seconds.

  And when a determination result is "Yes", it transfers to step S43 and it determines with the amount of rice cooking being "2 go." Thereby, the control content corresponding to “2 go” shown in FIG. 7 and FIG. 8 is applied.

  Moreover, when a determination result is "No", it transfers to step S45 and it determines with the amount of rice cooking being "3 go." Thereby, the control content corresponding to “3 go” shown in FIGS. 7 and 8 is applied.

  On the other hand, if “No” is determined in step S35, the process proceeds to step S50 to determine, for example, whether or not a certain rice brand “B” has been selected. Shifts to step S70, performs the rice cooking process of other brands (details are omitted), and ends the process.

  If “Yes”, the process proceeds to step S51. In step S51, a pre-cooking process is implemented, it transfers to step S52, and a cooking process is started.

  In addition, in the “immersed rice” mode and timer rice cooking, when the time setting until cooking is 2 hours or more, the pre-cooking process can be prevented from being performed.

  In step S53, it is determined whether or not the sensor temperature is 63 ° C. or lower. The total number is determined to be cooked rice. As a result, the control content corresponding to “1 go” shown in FIGS. 7 and 8 is applied.

  On the other hand, if it is determined as “Yes”, the process proceeds to step S55, and time counting is started from the time when the sensor temperature reaches 63 ° C.

  Next, in step S56, the time counting is finished when the sensor temperature reaches 93 ° C.

  In step S57, it is determined whether the temperature rise time t based on the time count is 119 seconds or less. If “Yes”, it is determined in step S58 that the amount of cooked rice is “1 go”. As a result, the control content corresponding to “1 go” shown in FIGS. 7 and 8 is applied.

  If “No” is determined, the process proceeds to step S59 to determine whether or not 119 seconds <t ≦ 130 seconds.

  And when a determination result is "Yes", it transfers to step S60 and it determines with the amount of rice cooking being "2 go." Thereby, the control content corresponding to “2 go” shown in FIG. 7 and FIG. 8 is applied.

  Moreover, when a determination result is "No", it transfers to step S61 and it determines with the amount of rice cooking being "3 go." Thereby, the control content corresponding to “3 go” shown in FIGS. 7 and 8 is applied.

  By such rice cooking processing, cooking according to rice brands and rice cooking modes can be performed easily and accurately with relatively simple control.

[Other embodiments]
As described above, the embodiments have been described. However, it should be understood that the descriptions and drawings forming a part of this disclosure are illustrative and are not restrictive. From this disclosure, various alternative embodiments, examples and operational techniques will be apparent to those skilled in the art.

  For example, a method using IH (electromagnetic induction heating) for the heater or a pressure IH method can be used.

  As described above, this embodiment includes various embodiments not described here.

  The electric rice cooker of this embodiment can be applied to rice cooking of various brands of rice.

DESCRIPTION OF SYMBOLS 1 ... Electric rice cooker 2 ... Main body 3 ... Hook button 4 ... Insert port 5 ... Handle 6 ... Steam port cap 7 ... Operation panel (display part)
7A ... Menu button (selection switch)
7B ... Rice brand button (selection switch)
8 ... Rice cooking button 9 ... Insulation / cancellation button 10 ... Lid part 11 ... Hook 13 ... Heater 14 ... Steam port 15 ... Shaft 16 ... Cylindrical part 20 ... Inner lid 21 ... Packing 22 ... Mounting part 23 ... Steam port packing rubber 30 ... Inner pot 50, 51 ... Character printing unit 100 ... Rice cooking means 101 ... Brand selection means 102 ... Control means (microcomputer)
DESCRIPTION OF SYMBOLS 150 ... Calorie | heat amount setting means 151 ... Total number determination means 152 ... Storage means 153 ... Data table 154 ... Additional recording means 200 ... Power supply circuit SN1 ... Temperature sensor

Claims (8)

Rice cooking means capable of sequentially executing a pre-cooking process, a first cooking process, a second cooking process, a first steaming process, a follow-up cooking process and a second steaming process;
Control means for controlling the rice cooking means;
A brand selection means for selecting a brand of rice to be cooked,
The amount of heat set by the heat amount setting means for setting the amount of heat to be applied in the first cooking step and the second cooking step according to the rice brand selected by the brand selection means. Based on this, the said rice cooking means is controlled, The electric rice cooker characterized by the above-mentioned. It has multiple rice cooking modes according to the rice cooking mode,
2. The electric rice cooker according to claim 1, wherein the control unit performs control so as to change a determination condition of a total number determination unit that performs a total number determination of rice to be cooked according to each rice cooking mode. The control means includes
3. The electric rice cooker according to claim 2, wherein control is performed such that the combined number is determined by the combined number determining unit based on a temperature rise time in a predetermined temperature range in the first cooking step.   The electric rice cooker according to claim 3, wherein the predetermined temperature range is a region showing a substantially linear temperature rise. The brand selection means includes:
A character printing section that pre-prints each brand and each rice cooking mode;
A selection switch for selecting one of each brand and one of each rice cooking mode;
A lighting unit that is located in the vicinity of the character printing unit and identifies the brand and the rice cooking mode selected by the operation of the selection switch;
The electric rice cooker according to any one of claims 2 to 4, further comprising:   The said control means is equipped with the storage means to store beforehand the data regarding each brand | brand, and the data regarding each said process according to each brand | brand, The electric rice cooking in any one of Claims 1-5 characterized by the above-mentioned. vessel.   7. The electricity according to claim 6, wherein the storage means includes additional writing means capable of additionally writing data relating to brands other than the brand stored in advance and data relating to the respective steps according to brands other than the brand. rice cooker.   The electric rice cooker according to claim 6 or 7, wherein the storage means includes a data table in which brands stored in advance are associated with other brands.

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