JP5458510B2 - Automatic rice cooker - Google Patents

Description

  The present invention relates to an automatic rice cooker, more specifically, a rice cooking method in which a pot is accommodated in a bowl and heated in a state where a lid is closed, or a step of cooking and heat insulation, depending on a mode set or selected. A control unit that automatically performs heating control and a sensor that detects information correlated with the opening and closing of the lid are provided, and the control unit changes the control based on information on whether the lid is opened or closed by the sensor. It relates to an automatic rice cooker.

This type of automatic rice cooker is already known (see, for example, Patent Documents 1 to 3). Patent Document 1 discloses a technique in which the lid includes a detection unit that detects opening and closing of the lid, and the energization of the pot heating unit is suppressed while the lid is open. For this purpose, as a detection means, a metal ball is placed in a case that is tilted forward or backward with the lid closed, and the case is moved to the opposite side in the front-rear direction after the horizontal posture of the case accompanying the opening and closing of the lid. A device that detects the movement of a metal ball due to an inclination with a lead sensor is disclosed, and is incorporated at least at the center of the lid viewed in the front-rear direction. Patent Document 2 includes detection means for detecting opening and closing of the lid, equivalent to that described in Patent Document 1, and when the reservation rice cooking setting is completed by the reserved rice setting means, the reservation is made by the reserved rice setting means. In addition to not accepting the rice cooking setting completion signal, a technique is disclosed in which the reservation content at that time is stored by the storage means, and the setting of the reserved rice cooking setting is completed by closing the lid thereafter. Although there is no specific example, Patent Document 3 includes a detection unit that detects opening and closing of a lid, and after a certain period of time has elapsed since the end of rice cooking, a notification sound is sounded and a lid is released before a certain period of time has passed. When opening / closing is detected, it is assumed that unraveling has been performed, and a technique for canceling the unraveling notification is disclosed.
JP 2001-16903 A Japanese Patent Laid-Open No. 2004-8551 JP 2004-344224 A

  However, as in the technique disclosed in Patent Document 1, if the detection means for detecting the opening / closing of the lid is built in at least the central position in the front-rear direction of the lid, the connection with the control system on the body side is the lid Since the length of the connection is increased through the hinge connecting part to the body of the machine, the lead wire consumption increases, the lead wire passing work, and the labor for routing are increased, resulting in an increase in product cost. . In addition, the detection means and lead wire are easily subject to swinging and impact loads due to frequent opening and closing of the lid, sudden stop at the end of opening and closing, etc., in a large swing radius range, and the collision of the ball of the detection means and the case It may also cause an increase in sound, early wear, and disconnection of lead wires.

  The main object of the present invention is to provide an automatic rice cooker with a sensor that is less troublesome and less costly and less prone to damage and failure. To make it more effective.

In order to achieve the object as described above, the automatic rice cooker of the present invention is set or selected for the rice cooking in which the pot is accommodated in the container and heated in a state where the lid is closed, or the cooking and heat retention steps. And a control unit that automatically performs electrical heating control according to the mode and a sensor that detects information correlated with the opening and closing of the lid, and the control unit is based on information on whether the lid is opened or closed by the sensor. In the automatic rice cooker in which the control is changed, the sensor is provided between the steam port that is located at substantially the center of the lid and discharges the steam to the outside and the hinge connecting portion to the lid body. That
Basic configuration .

  In such a configuration, rice cooking, or rice cooking and heat retention, is automatically cooked by electrical heating control according to the mode set or selected by the control means, and based on the information on whether the lid is opened or closed from the sensor. Although the control is changed, the sensor is provided between the steam port of the lid body and the hinge connecting portion to the body of the lid body, and is located closer to the rear side in the front-rear direction of the lid body. Accordingly, it is possible to reduce the length of connection via the hinge connecting portion with the body and to reduce the swing diameter and swing angle (amount) associated with opening and closing of the lid of the sensor.

  In the above, the information according to the opening degree of the lid body may be an opening angle of the lid body.

  In such a configuration, in addition to the above, the opening and closing of the lid body is detected by the sensor as a change in the lid body angle and inclination, and the control means can determine whether the lid is open or closed from the detected angle information. If necessary, the determination condition can be made different between the lid opening and the lid closing by using the width of the angle change corresponding to the degree of opening of the lid.

Automatic cooker of the present invention, in the above SL basic structure, further, the control means, before entering the heating operation after the case number determination, based on the determination of the lid open, since, continued to maintain the current stroke, the lid One feature is that the heating control for shifting to the temperature raising process is performed based on the determination of closing.

  In such a configuration, in addition to the above, when it is determined that the lid is opened before entering the heating process after the combined number determination, the current level is continuously maintained, that is, the low temperature before the heating process is reduced. If it is determined that the lid is closed while maintaining the low-temperature rice cooking state, the process proceeds to the temperature raising process to reach the boiling temperature, and the rice cooking can be performed.

The automatic rice cooker of the present invention is further provided with a reserved rice cooking mode in which the start of cooking rice is delayed until the reserved rice cooking start time so as to finish cooking in accordance with the inputted reservation time in the above basic configuration , and the control means is Even if it is determined that the lid is open during the reservation before the start of reserved rice cooking, if it is determined that the lid is closed before the start of reserved rice cooking, rice cooking will start at the normal timing, and the reserved rice start time will elapse Even if it is not determined that the lid is closed, another feature is that the reservation is maintained without starting rice cooking, and then the rice cooking is started when the lid is closed.

  In such a configuration, in addition to the above, further, by selecting the reserved rice cooking mode, the start of rice cooking is delayed until the reservation rice cooking start time so as to finish the rice cooking according to the input reservation time, but the rice cooking is performed. Even if you decide to open the lid during the reservation before the start of cooking rice, if you decide to close the lid before the start of reserved rice cooking, the lid opening up to that point will not affect the cooking that starts after that, so at normal timing Start cooking rice, but if it is not judged that the lid is closed even if the reserved cooking start time has passed, it will affect the cooking that starts from the reserved cooking start time, so keep the reservation without starting cooking rice Therefore, if it is determined that the lid is closed after the start of cooking, it can be determined that the user who has noticed that the lid has been opened has closed the lid. Wait and cook Want can be so.

  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 used alone or in combination in various combinations as much as possible.

According to the basic configuration of the automatic rice cooker of the present invention, the automatic rice cooking is performed by the electric heating control according to the set or selected mode. Is located closer to the rear side in the front-rear direction of the lid, and the length of the connection via the hinge connection with the body is shortened by the amount closer to the rear side, and the swing diameter and swing associated with opening and closing of the sensor lid Since the angle (amount) is reduced, consumption of the lead wire is reduced, and the labor of the wiring work is reduced, so that the cost can be reduced and both the lead wire and the sensor are mechanically and physically associated with opening and closing the lid. It is possible to reduce the load and make it difficult to break down.

According to one feature of the automatic rice cooker of the present invention, in addition to the case of the above basic configuration , even if there is a noise element such as a shift in information such as a height in the information accompanying opening and closing of the lid from the sensor, By deciding whether the lid is open based on information corresponding to the degree of opening of the lid or higher, it is possible to reliably determine whether the lid is open in consideration of the noise element of the sensor, and emergency measures and safety measures corresponding to the lid opening are wasted. Can be prevented.

  In addition to the above, the opening and closing of the lid can be precisely and accurately detected by the sensor as changes in its angle and inclination, and can be used for accurate determination of lid opening and lid closing. The determination condition can be made different depending on whether the lid is opened or closed using the change width of the lid. For example, the determination of lid opening is determined by the change in angle when the rice is opened to an extent that is abnormal, and the lid closing is determined by the angle condition corresponding to the reliable closing, so that the cooking of rice based on the lid closing determination Can avoid failure.

According to one feature of the automatic rice cooker of the present invention, in addition to the above basic configuration, when the lid opening determination before entering the heating process after the total number determination, the heating process at the current time By maintaining a lower temperature, rice cooking can be finished safely without overheating, and when the lid is closed in the low-temperature rice cooking maintenance state, the cooking temperature is excessive and the cooking temperature has reached the boiling temperature. It can be achieved safely without heating.

According to another feature of the automatic rice cooker of the present invention, in addition to the above basic configuration, even if the lid opening determination is made during the reservation in the reserved rice cooking mode, the lid closing determination is performed before the reserved rice cooking start time point. If there is confirmation of lid opening cancellation, rice cooking will be started at normal timing so that cooking can be completed normally.If there is no confirmation of lid opening cancellation by lid closing judgment even if the reserved rice cooking start time has passed, While cooking is not started at the timing and the reservation is being made so that cooking that affects lid opening is not performed, if there is confirmation of lid opening cancellation by lid closing determination, rice cooking is started. Therefore, it is possible to prevent the rice cooking from failing due to the lid being opened by waiting for the normal rice cooking time.

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

  The automatic rice cooker 1 according to the present embodiment shown in FIG. 1 is set or selected for the rice cooking in which the pot 3 is accommodated in the container 2 and heated in a state where the lid body 4 is closed, or the cooking and heat retention steps. The control means 5 which performs automatically by the electrical heating control according to the mode, and the sensor 6 which detects information correlating with opening and closing of the lid body 4 are provided. The control is changed on the basis of information on opening / closing. Cooked rice is mainly performed by sequentially performing a water absorption process, a temperature raising process, a cooking process, and a steaming process, and after the cooking, the rice is kept warm according to the selection. The heating control is performed by controlling energization of the heating means 8 based on temperature information detected by the center sensor 7 that detects the bottom temperature of the pan 3 by the control means 5. The heating means 8 of the present embodiment employs a heating coil that generates an alternating magnetic field by high-frequency driving by inverter control and generates heat from the opposing heating element, and the heating element is a pan 3 itself made of metal. However, in the present embodiment, since the non-metallic pan 3 represented by a clay pot is employed, the heating element is the outer surface or the inner surface of the pan 3 or an embedded metal layer, and is generally printed with silver paste. It is preferable to provide it as a layer. In addition, the center sensor 7 is difficult to detect the actual rice cooking temperature with good correlation through the pan 3 having low thermal conductivity, and in particular, a subtle temperature change in a short time for determining the total number by the temperature rise characteristic and the temperature fall characteristic. In order to detect accurately, the metal heat sink 13 which has the lid heater 12 as one of the heating means 8 is located on the metal inner lid 11 which closes the pan 3 on the lid 4 side. A lid sensor 14 is provided on the top. The control means 5 is a control board on which a microcomputer is mounted. The control means 5 is initialized and selected on the operation panel 15 in cooperation with the display board 16 inside the operation panel 15 provided at the front of the body 2. The operation panel 15 has a rice cooking start key 17 that immediately starts cooking rice, a reservation key 18 that sets reserved rice cooking so as to end cooking at a set time, and the like. When the reservation key 18 is operated, a setting screen for setting the cooking time is displayed on the operation panel 15, and when the reservation is completed according to the display, the reserved rice cooking mode starts and the cooking rice is delayed until the reserved cooking start time corresponding to the set cooking time. Let However, the present invention is not limited to the above, and the pan 3 may be made of a metal that serves as a heating element, or may be a system that uses a heater instead of the heating coil. Further, the present invention can be applied to a gas cooker as long as it has an electric control means for automatic rice cooking.

  The lid 4 is provided with a steam port 21 for discharging steam to the outside at substantially the center position of the front, rear, left and right thereof, and the safety of the surroundings and the optimization of rice cooking based on the specific conditions from the specific position. When the lid 4 is closed, the lock means 22 is automatically locked to the closed position so that the steam does not leak from other than the steam port 21. The lock means 22 has an unlock operation section 23, which can be unlocked by unlocking operation so that the lid 4 is automatically opened by the bias of the spring.

  Here, as shown in FIG. 1, the sensor 6 according to the present embodiment includes a steam port 21 that is positioned substantially at the center of the lid body 4 and discharges steam to the outside, and the lid body 4 to the container body 2. It is provided between the hinge connecting portion 31. Thereby, rice cooking, or rice cooking and heat retention are automatically cooked by electrical heating control according to the mode set or selected by the control means 5, and based on the information on whether the lid 4 is opened or closed from the sensor 6. Although the control is changed, the sensor 6 is provided between the steam port 21 of the lid body 4 and the hinge connecting portion 31 of the lid body 4 to the container body 2, and is located closer to the rear side in the front-rear direction of the lid body 4. Therefore, the connection length with the body 2, specifically, the control means 5 via the hinge connecting portion 31 is shortened by the amount close to the rear side, and the lid 4 of the sensor 6 is opened and closed. As a result, the swing diameter and swing angle (amount) can be reduced.

  As a result, although automatic rice cooking is performed by electrical heating control according to the set or selected mode, the control is changed based on information on whether the lid 4 is opened or closed. The connection length of the sensor 6 via the hinge connection portion 31 is shortened by the amount close to the rear side, and the swing diameter and swing angle (quantity) associated with opening and closing of the lid body 4 of the sensor 6 are reduced. ), The consumption of lead wires is reduced, and the labor of connection work is reduced, so that the cost can be reduced and both the lead wires and the sensor 6 are mechanical and physical loads accompanying the opening and closing of the lid 4. Can also be reduced, making it difficult to break down. Here, by using an opto-sensor as the sensor 6, it becomes difficult to be affected mechanically and physically due to the opening and closing of the lid, like a mechanical detection type sensor.

  Thus, the sensor 6 can employ various types such as a mechanical type and an optical type. As for the mechanical type, those disclosed in Patent Documents 1 and 2 can be used in the same manner by providing them on the lid 4 side as shown in FIG. The one disclosed in Japanese Patent Application Laid-Open No. 2000-75046 is known (for example, a four-direction sensor (type RPI) manufactured by ROHM), which has a reflecting portion 32a in a rotational direction and an angle changing direction as shown in FIG. Angle gauges 32 in which non-reflective portions 32b are alternately arranged, light receiving elements 33a and 33b arranged with an interval smaller than the size seen in the arrangement direction of the reflective portions 32a and non-reflective portions 32b in the arrangement direction, and these A light emitting element 33c disposed therebetween, and a combination of the light emitting side and the light receiving side of the detector 33 facing the angle gauge 32. At the detector 33 by relative movement Optical device 33a, the combination of the light receiving patterns 33b, the rotation angle, the angle change can be detected. If the angle gauge 32 and the detector 33 are provided at one position on the circular arc centered on the hinge connecting portion 31, one on the lid body 4 and the other on the container body 2, as the lid body 4 opens, FIG. As shown in FIG. 2B, the light receiving element 33b goes high prior to the light receiving element 33a, and the light receiving element 33a goes high prior to the light receiving element 33b as shown in FIG. A waveform is output, and an opening angle and a closing angle can be detected by a combination thereof. When the angle gauge 32 and the detector 33 are designed as a four-direction sensor, as shown in FIG. 2A, the lid body is viewed from the output of one light receiving element 33a with the opening / closing reference line S having an inclination of 30 ° as a boundary. Regardless of the opening and closing of 4, the closed side can be determined as a low (L) section, and the open side can be determined as a high (H) section. Accordingly, a combination of one light receiving element and one light emitting element is sufficient for the detector 33 used as the sensor 6 of the present embodiment. However, if the arrangement pitch and the arrangement direction size of the reflecting portion 32a and the non-reflecting portion 32b of the angle gauge 32 are reduced, it is possible to determine the angle of a finer unit, that is, the degree of opening of the lid 4. However, the sensor 6 can be a switch that is mechanically turned on and off as the lid body 4 is opened and closed, and can be a switch that is mechanically turned on and off as the lid body 4 is opened and closed. It is also possible to detect the opening / closing of the lid 4 as a photosensor for detecting the incidence of external light accompanying the opening / closing of the lid 4 and the brightness at the time of blocking. However, in actuality, it is sufficient to determine the opening angle of the lid 4 to be less than 10 ° or less than 20 °.

  Here, the control means 5 determines the lid opening based on information corresponding to a predetermined opening degree or more of the lid body 4 detected by the detector 33 or the like as the sensor 6, and the lid based on the information corresponding to the opening degree less than the predetermined opening degree. Even if there is a noise element such as a deviation in the change in height or the like in the information accompanying the opening / closing of the lid 4 from the sensor 6, it can be determined based on information corresponding to a predetermined opening degree or more of the lid 4. By determining the lid opening, it is possible to reliably determine the lid opening considering the noise element of the sensor 6. Therefore, even if there is a noise element such as a deviation in the change in height or the like in the information accompanying opening / closing of the lid 4 from the sensor 6, the lid opening is determined based on information corresponding to a predetermined opening degree or more of the lid 4. Accordingly, it is possible to reliably determine whether the lid is opened in consideration of the noise element of the sensor 6 and prevent emergency measures and safety measures corresponding to the lid opening from being performed wastefully.

  Further, like the detector 33 as the sensor 6, the information according to the degree of opening of the lid 4 is the opening angle of the lid 4, and the opening / closing of the lid 4 is related to the angle of the lid 4, The sensor 6 detects the change in inclination, and the control means 5 can determine whether the lid is open or closed from the detected angle information. If necessary, the control means 5 can use the width of the angle change corresponding to the degree of opening of the lid 4 to cover the lid. The judgment condition can be made different between opening and closing. Therefore, the opening and closing of the lid body 4 can be precisely and accurately detected by the sensor as changes in its angle and inclination, and can be used for accurate determination of lid opening and lid closing. Using the width, the determination condition can be made different depending on whether the lid is open or closed. For example, the determination of lid opening is determined by the change in angle when the rice is opened to an extent that makes cooking abnormal, and the lid closing is determined by the angle condition corresponding to the reliable closing, so that the cooking of rice based on the lid closing determination Can avoid failure.

  A specific example in which the above-described lid opening problem may occur is considered as follows. First, if the unlocking operation unit 23 is easy to operate as shown in FIG. 1 and protrudes to the outer surface of the lid 4 or the like, it is easy to touch the door 4 inadvertently or by mischief of the infant, and the lid 4 opens without knowing. May have. There are also situations where the user often leaves after the setting operation, and if rice cooking is performed without knowing this, rice cooking cannot be performed as prescribed, such as premature divergence of steam and the influence of outside temperature, leading to insufficient heating. In addition, such a situation is likely to occur when the unlocking operation unit 23 is easily operated as shown in FIG. 1 and protrudes, and the locking unit 22 locks the lid 4 to the closed position by the locking unit 22. If the lock is set shallowly from the operability when unlocking, it may open due to inadvertent touching or contact with objects when leaving, or due to vibration during boiling during cooking Can occur. In particular, when the total number is determined based on the detected temperature of the lid sensor 14 provided on the lid body 4 as described above, it is difficult to detect a temperature change for viewing the temperature rise characteristics, and the temperature rise and fall characteristics are dull. As a result, the total number is determined more than the actual amount, which causes overheating.

  Here, it is considered that the lid opening can occur at various timings due to various factors when cooking rice. Therefore, it is preferable to make the most effective use of the lid opening detection function so that normal rice cooking can be achieved without any problems due to differences in lid opening timing, can be safely terminated, or can not be performed wastefully.

  Therefore, in the present embodiment, in the above, the control means 5 further determines whether the lid is open during the combined number determination based on the temperature rising characteristic or the temperature decreasing characteristic before the temperature rising process or after the completion of the number determination. Based on this, heating control corresponding to the minimum number is performed thereafter. Thereby, the total number determination before the temperature rising stroke is performed in a relatively low temperature range. If the information on the lid opening is determined before the temperature rising stroke, for example, the determination of the total number is completed. Regardless of the result of the determination, rice cooking can be completed with suppressed heating that performs the heating control corresponding to the minimum number. Therefore, depending on the determination of the lid opening information before the heating process performed through the combined number determination, the minimum combined number from the low temperature range before the heating process is determined regardless of the determination result even if the determination of the combined number is completed. In the temperature information of the lid sensor 14 on the lid 4 side, for example, the rice is cooked with reduced heating with the heating control corresponding to, and the pan 3 is made of non-metal which is difficult to monitor the actual rice cooking temperature. In the case where the total number is determined by the temperature rise characteristic or the temperature drop characteristic, the lid 4 is open, and the actual temperature change can only be grasped dull, and the tendency to determine the total number on the larger side is shown. But cooking rice can be finished safely without overheating.

  In this case, the control means 5 continues to maintain the current level based on the lid opening determination before entering the temperature increasing process after the combined number determination, and proceeds to the temperature increasing process based on the lid closing determination. By performing the heating control, when it is determined that the lid is opened before entering the heating process after the total number determination, the current level is continuously maintained, that is, the rice is cooked while maintaining the low temperature before the heating process. If it is determined that the lid is closed with the low-temperature rice cooking state maintained, then the process proceeds to the heating step and reaches the boiling temperature so that rice can be cooked.

  In addition, as described, in response to having a reserved rice cooking mode that delays the start of rice cooking until the reservation rice cooking start time so as to finish the rice cooking in accordance with the inputted reservation time, the control means 5 Even if it is determined that the lid is open during the reservation before the start of cooking rice, if the lid is determined to be closed before the start of reserved rice cooking, rice cooking will start at the normal timing, and the reserved rice start time will elapse If it is not determined that the lid is closed, rice cooking is maintained without starting cooking, and rice cooking is started when it is determined that the lid is closed thereafter. As a result, depending on the selection of the reserved rice cooking mode, the rice cooking is delayed until the reserved rice cooking start time so as to finish the rice cooking according to the inputted reservation time, but the lid is closed during the reservation before the reserved rice cooking start time Even if it is determined to be open, if it is determined that the lid is closed before the reserved rice cooking start time, the previous lid opening will not affect the cooking that starts thereafter, so rice cooking will start at normal timing, but the reserved rice cooking will start. If it is not determined that the lid is closed even after the time has elapsed, it will affect the rice cooking that starts from the beginning of the reserved rice cooking, so by maintaining the reservation without starting the rice cooking, the rice cooking will start and normal rice cooking If it is determined that the lid is closed after that, the user who has noticed that the lid has been opened can determine that the lid has been closed, so it can start cooking and wait for the normal cooking time to cook. .

  As a result, even if it is determined that the lid is open during the reservation in the reserved rice cooking mode, if there is a confirmation of the lid opening cancellation by the lid closing determination before the start of the reserved rice cooking, rice cooking will be started at the normal timing and cooked normally. If the confirmation of lid opening is not confirmed by the lid closing judgment even after the reserved rice cooking start time has passed, the rice cooking that does not start cooking at normal timing but keeps the reservation and the lid opening affects However, if there is a confirmation of lid opening cancellation by lid closure judgment after that, rice cooking will start if you wait for the normal rice cooking time, and rice cooking will fail due to lid opening Can be prevented.

  Hereinafter, a specific control example will be described. In normal rice cooking, as shown in FIG. 3, rapid temperature rise in a short single time in a certain temperature range while performing a water absorption process to absorb water into the rice in a low temperature range. Alternatively, the total number is determined from the temperature rise characteristic or temperature fall characteristic due to the heating stop. During the period from the start to the end of the judgment of the total number and until the water absorption process by the total number, the lid is determined to be opened, and if the lid is not open, the water absorption is performed according to the total number according to the total number determination result. If there is, the minimum number is set and water absorption according to the number is performed corresponding to the minimum number. When the water absorption by the total number is completed, the lid is determined to be opened before proceeding to the next heating step. If the lid is not opened, a temperature-increasing process according to the number according to the previous number determination is performed to increase the temperature to the boiling temperature. If there is a lid open, the current water absorption process temperature is maintained and cooking is continued. In either case, if there is a rapid temperature rise due to the loss of water, the process proceeds to the cooking process and the steaming process. If heat retention is selected after the steaming process, the process proceeds to the heat retention process, and if the heat retention is not selected, cooking is terminated.

  As shown in FIG. 4, in reserved rice cooking, when reserved rice cooking is selected, the reserved rice cooking mode is advanced after completion of setting the cooking time, but if the setting is not completed, the reserved rice cooking mode does not proceed further. When the setting of reserved rice cooking is completed, the reserved rice start time for ending cooking rice is calculated and set at the set time. Thereafter, it is determined whether the lid is open, and if the lid is open, the user is informed by voice, display, display and buzzer sound that the lid is open, and prompts the user to close the lid 4. Thereafter, when it is confirmed that the lid is closed, the reserved rice cooking start time is reached or the condition is passed.

  The present invention is an automatic rice cooker that performs electrical heating control and detects the opening of the lid with a sensor provided on the lid body, but the work is light and the cost can be reduced, and the sensor is not easily damaged or broken. Provided.

It is a schematic side view which shows one example of the electric rice cooker which concerns on embodiment of this invention. It is explanatory drawing which shows the example of a lid open detection angle at the time of using the 4-direction sensor of FIG. It is a flowchart which shows the example of control corresponding to the presence or absence of the lid opening at the time of normal rice cooking. It is a flowchart which shows the example of control corresponding to the presence or absence of the lid | cover opening until it comes to normal rice cooking by reserved rice cooking.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Automatic rice cooker 2 Body 3 Pan 4 Lid 5 Control means 6 (33) Sensor 7 Center sensor 8 Heating means 11 Inner lid 12 Cover heater 13 Heat sink 14 Cover sensor 15 Operation panel 16 Display board 17 Rice cooking start key 18 Reservations Key 21 Steam port 22 Lock mechanism 23 Unlock operation part 31 Hinge connection part

Claims (2)

Control means for automatically performing rice cooking in which the pot is housed in the container and heating with the lid closed, or the process of cooking and keeping warm by electric heating control according to the set or selected mode And an automatic rice cooker that includes a sensor that detects information correlated with opening and closing of the lid, and the control means changes the control based on information on whether the lid is opened or closed by the sensor.
The sensor is provided between a steam port that is located substantially in the center of the lid and discharges steam to the outside, and a hinge connection to the lid body.
Based on the lid opening determination before entering the temperature rising stroke after the combined number determination, the control means continues to maintain the current level and performs heating control to shift to the temperature rising stroke based on the lid closing determination. An automatic rice cooker characterized by that. Control means for automatically performing rice cooking in which the pot is housed in the container and heating with the lid closed, or the process of cooking and keeping warm by electric heating control according to the set or selected mode And an automatic rice cooker that includes a sensor that detects information correlated with opening and closing of the lid, and the control means changes the control based on information on whether the lid is opened or closed by the sensor.
The sensor is provided between a steam port that is located substantially in the center of the lid and discharges steam to the outside, and a hinge connection to the lid body.
It is equipped with a reserved rice cooking mode that delays the start of rice cooking until the reservation rice cooking start time so as to finish the rice cooking in accordance with the input reservation time, and the control means made the lid open determination during the reservation before the reservation rice cooking start time Even if it is determined that the lid is closed before the start of reserved rice cooking, rice cooking is started at normal timing, and if the lid is not determined to be closed even after the reserved rice cooking start time has elapsed, rice cooking is started. An automatic rice cooker characterized by maintaining the reservation without making it and then starting cooking when it is determined that the lid is closed.

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