JP5494266B2 - Jar rice cooker - Google Patents

Description

  The present invention relates to a jar rice cooker having a heat retaining function and controlling a heat retaining operation after a power failure recovery according to the state at the time of a power failure.

  Conventionally, this kind of jar rice cooker has backup means to memorize the state at the time of power failure, and when power failure occurs, when the power returns, continue the state at the time of power failure or power failure occurs Heating is restarted under some conditions, such as restarting heating from the optimal heating mode according to the state of time. In addition, there is a timing unit that counts the time during which a power failure has occurred, and the heating operation is stopped when the timing unit is equal to or longer than a predetermined time when the power failure is restored (see, for example, Patent Document 1).

JP-A-9-149850

  However, in the conventional configuration, even if some operation is changed, if the heat insulation is always continued even after a power failure, the user does not finish the heat insulation, and after unplugging the outlet plug, prepares for the next rice cooking. If you put the rice and water in the pan, store it in the main body, and then turn it on again, you will continue to keep warm, and you will not be able to cook properly without noticing that the user is keeping warm. There was a problem.

  On the other hand, when the jar rice cooker is moved to the place of meal during the heat insulation and the outlet plug is unplugged and the power is turned on again after the meal, it is judged as a power failure regardless of the user's intention. Had the problem of terminating the heat insulation.

  This invention solves the said conventional subject, and when a power failure is carried out during a heat retention, it aims at providing the jar rice cooker which can implement | achieve the heat retention control according to a user's intention easily at the time of a power failure reset.

  In order to solve the above-mentioned conventional problems, the jar rice cooker of the present invention detects a power failure during heat insulation and then detects a power failure recovery, and the time measured by the power failure time counting means exceeds the first predetermined time. Then, if there is no input by the heat retention extension input means within the second predetermined time, the control means for automatically terminating the heat retention is provided.

  By this, except when the outlet plug is removed for a short time for movement, and when the outlet plug is removed and the next rice preparation is performed and the power is turned on again, it does not automatically keep warm, so-called If continuation of heat insulation is required at the time of power failure recovery, it is possible to continue the heat insulation by explicitly instructing the user, so if there is a power outage during the heat insulation, the heat insulation control according to the user's intention at the time of power failure recovery Can be realized easily.

The jar rice cooker of the present invention can easily realize the heat insulation control in line with the user's intention when the power failure occurs during the heat insulation, so that it is more convenient for the user and provides the food in a timely manner. be able to.

The block diagram which shows the jar rice cooker in Embodiment 1 of this invention. Flow chart at the time of power failure in Embodiment 1 of the present invention Flow chart at the time of power failure in Embodiment 2 of the present invention Flow chart at the time of power failure in Embodiment 3 of the present invention

  1st invention is a pot which puts rice and water, a lid which covers the upper part of the pot so that it can be opened and closed, a pot heating means for heating the pot, and a control means for controlling the pot heating means to cook rice and keep warm. A power failure detection means for detecting a power failure, a power failure time counting means for timing the time determined by the power failure detection means to be a power failure, a power failure recovery detection means for detecting a power failure recovery, and a time after the power failure recovery. A power failure recovery time measuring means, and a heat retention extension input means for instructing a heat retention extension, and the control means detects a power failure recovery by the power failure recovery detection means after detecting a power failure during the heat insulation by the power failure detection means. If the time measured by the power failure time measuring means exceeds a first predetermined time and the time measured by the power failure recovery time measuring means is not input by the heat retention extension input means within a second predetermined time, The automatic If the continuation of the warming is required when the power is restored from the power failure for the first predetermined time or longer during the warming, the warming is maintained by inputting by the warming extension input means within the second predetermined time. If no input is made, it will be determined that continuation of heat insulation is unnecessary, and the heat insulation will be automatically terminated. Therefore, if the power is restored from a power failure for more than the first predetermined time during the heat insulation, If necessary, the warming can be continued by performing input using the warming extension input means, and if not necessary, the warming can be terminated by leaving it as it is, thus simplifying the warming control according to the user's intention. Can be realized.

The second invention comprises a pan for storing rice and water, a lid that covers the top of the pan so that it can be opened and closed, a pan heating means for heating the pan, a pan temperature detecting means for detecting the temperature of the pan, According to the temperature detected by the pot temperature detecting means, the pot heating means is controlled to cook rice and keep warm, the power failure detecting means to detect a power failure, and the time that is determined to be during the power failure by the power failure detecting means. Power failure time counting means, power failure recovery detection means for detecting power failure recovery, power failure recovery timing means for timing the time after power failure recovery, and heat retention extension input means for instructing heat extension, the control means, After a power failure is detected by the power failure detection means during the heat retention, when a power failure recovery is detected by the power failure recovery detection means, the time measured by the power failure time counting means exceeds a first predetermined time, and the pan temperature Temperature detected by detection means There below the first predetermined temperature, and the power failure recovery if time measured by time measuring means there is no input by the insulation extension input means within a second predetermined time, by automatic termination of incubation, first in warmth When the temperature detected by the pan temperature detecting means is equal to or lower than the first predetermined temperature when the power is restored from the power failure for the predetermined time or more, the temperature has dropped because the next rice cooking preparation was performed during the power failure. There is a possibility that continuation of the heat insulation is unnecessary, and the heat insulation is automatically terminated after the second predetermined time. However, before the heat insulation is automatically terminated, the user can keep the heat by the second input means. If it is instructed to continue, and if the first predetermined temperature is exceeded at the time of power failure recovery, the warming will continue, so the outlet plug will be removed during the warming and the next rice cooking preparation will be done In that case, The temperature detected by the temperature detection means is not more than the first predetermined temperature that is closer to room temperature than when the temperature is maintained, and it is determined that the continuation of the temperature is unnecessary, so that the temperature can be automatically terminated and moved to the eating place. When the outlet plug is pulled out for use and the power is turned on again after a meal, the temperature detected by the pan temperature detecting means does not drop so much and becomes the first predetermined temperature or higher. It is possible to continue the heat insulation by judging , and in the unlikely event that the user wants to continue the heat insulation even when the temperature by the pan temperature detecting means becomes equal to or lower than the first predetermined temperature, the heat insulation extension is performed. The heat insulation can be continued by performing the input by the input means.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
FIG. 1: shows the block diagram which shows the jar rice cooker in the 1st Embodiment of this invention.

  In FIG. 1, a pot 1 into which a cooked product such as rice or water is covered with a lid 4 so that the upper part of the pot 1 can be opened and closed. A pot heating means 2 for heating the pot 1 and a pot temperature detecting means 3 for detecting the temperature of the pot 1 are arranged at the bottom of the pot 1.

  The pan heating means 2 is an induction heating coil, a heater, or the like, and may be on the outer periphery of the pan 1 or the top surface of the pan 1 in addition to the bottom of the pan 1. The pan temperature detecting means 3 is a temperature sensor and may be a contact type or a non-contact type infrared sensor.

  The control means 6 controls the pot heating means 2 according to a preset sequence in accordance with the detected temperature of the pot temperature detecting means 3 and the output of the time measuring means 5 for measuring time, and performs rice cooking and heat insulation.

  The power failure detection means 7 for detecting a power failure detects the power failure by detecting the presence or absence of power supply from a commercial power source. The power failure time counting means 8 measures the time when the power failure detection means 7 determines that a power failure is occurring due to the absence of power supply.

  After the power failure detection means 7 detects a power failure because there is no power supply, it can detect a power failure recovery by detecting again that there is a power supply. Therefore, the power failure recovery detection means 10 for detecting power failure recovery is a power failure detection. The means 7 can also be used. The power failure recovery timing means 11 measures the time after the power failure recovery by counting from the time when the power failure recovery detection means 10 (power failure detection means 7) re-detects that there is power supply after the power failure.

  The heat retention extension input means 9 for instructing the heat retention extension is provided with a switch in an operation portion of the jar rice cooker main body (not shown) so that the user can perform an instruction operation when necessary.

  About the jar rice cooker comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

The control means 6 controls the pot heating means 2 according to a preset sequence according to the detected temperature of the pot temperature detecting means 3 and the output of the time measuring means 5 for measuring time, and first cooks rice, and then Keep warm automatically.

  When power supply from the commercial power supply is lost during the heat insulation, the power failure detection means 7 detects that there is no power supply, and the power failure time measuring means 8 detects a power failure while detecting the absence of power supply from the commercial power supply. Time is measured.

  Thereafter, when the power supply is detected again, the power failure recovery detection means 10 detects the power failure recovery, the power failure recovery timing means 11 measures the elapsed time after the power failure recovery, and the power failure time timing means 8 measures the time. Discontinue. In addition, by restarting the power supply, the pot heating means 2 is controlled to heat the pot 1 so that the heat can be kept.

  Here, if the power failure time by the power failure time measuring means 8 is equal to or longer than the first predetermined time (for example, 20 minutes), the power supply is lost because the outlet plug is removed for a short time for movement. It can be judged that this is not the case.

  Used when the power failure has been restored after the power failure time has exceeded the first predetermined time (for example, 20 minutes) or when the heat retention extension input means 9 has been operated within the second predetermined time (for example, 5 minutes). Since the person explicitly instructs that the person wants to continue the heat insulation, the heat insulation is continued, and if the operation is not performed, the heat insulation is automatically terminated.

  In this way, even when the user finishes the heat insulation, removes the outlet plug, and inserts the outlet plug to use again for cooking rice, avoiding the situation where the heat insulation continues automatically. it can.

  FIG. 2 shows a flowchart at the time of power failure in the first embodiment of the present invention.

  In FIG. 2, when the power failure detection means 7 detects a power failure at step S01, the process proceeds to step S02, and when it is not detected, a loop (standby) is performed.

  In step S02, the power failure time counting means 8 measures the elapsed time (power failure time) from the start of the power failure, and proceeds to step S03.

  If the power failure recovery detection means 10 (power failure detection means 7) detects a power failure recovery in step S03, the process proceeds to step S04, and if not detected, loops.

  In step S04, the power failure time counting means 8 finishes timing, stores the elapsed time from the start of the power failure (power failure time), and the power failure recovery time measuring means 11 times the elapsed time after power failure recovery (power failure recovery time). Then, the process proceeds to step S05.

  In step S05, if the power failure time is 20 minutes or more, the process proceeds to step S06, and if it is less than 20 minutes, the process proceeds to step S08 and the heat insulation is continued.

  In step S06, if the power failure recovery time is within 5 minutes, the process proceeds to step S07. If it exceeds 5 minutes, the process proceeds to step S09, and the heat insulation is not resumed and is terminated.

  In step S07, if the warming extension input means 9 is operated and there is an input, the process proceeds to step S08, and the warming is continued. If there is no input, the process loops to step S06.

  As described above, in this embodiment, when the user needs to continue the heat retention when the power is restored from the power failure for the first predetermined time (20 minutes) or longer during the heat retention, the second predetermined time ( Within 5 minutes), the warming is continued by inputting by the warming extension input means. If the input is not performed, it is determined that the warming is not required and the warming can be automatically terminated.

  In the present embodiment, the first predetermined time is 20 minutes and the second predetermined time is 5 minutes. However, the first predetermined time may not be as short as the replacement of the outlet. The predetermined time of 2 is not limited to this time as long as it can be operated at the time of return if the user is in the house that the user is using even during a power failure or breaker operation of the commercial power source. it is obvious.

  In addition, although a dedicated heat retention extension key is provided as a heat retention extension input means, it is only necessary to be able to confirm the user's intention, so it is obvious that it may also be used as another input means operated by the user. .

  Also, when there is a power outage for the first predetermined time or more during heat insulation, display means such as LCD and LED, voice notification means, communication means to the outside, etc. are provided and the heat insulation is continued. It is obvious that the input by the heat retention extension input means may be urged, or the automatic termination may be notified because there has been a power failure for the first predetermined time or longer during the heat retention.

(Embodiment 2)
Since the block diagram which shows the jar rice cooker in this Embodiment is the same as that of Embodiment 1, description is abbreviate | omitted and the operation | movement and an effect | action are demonstrated hereafter.

  The control means 6 controls the pot heating means 2 according to a preset sequence according to the detected temperature of the pot temperature detecting means 3 and the output of the time measuring means 5 for measuring time, and first cooks rice, and then Keep warm automatically.

  When power supply from the commercial power supply is lost during the heat insulation, the power failure detection means 7 detects that there is no power supply, and the power failure time measuring means 8 detects a power failure while detecting the absence of power supply from the commercial power supply. Time is measured.

  Thereafter, when the power supply is detected again, the power failure recovery detection means 10 detects the power failure recovery, and the power failure time counting means 8 stops timing. In addition, by restarting the power supply, the pot heating means 2 is controlled to heat the pot 1 so that the heat can be kept.

  Here, if the power failure time by the power failure time measuring means 8 is equal to or longer than the first predetermined time (for example, 20 minutes), the power supply is lost because the outlet plug is removed for a short time for movement. It can be judged that this is not the case.

  When the power failure is restored after the power failure time exceeds the first predetermined time (for example, 20 minutes), the pan temperature by the pan temperature detecting means 3 is used when the temperature is equal to or lower than the first predetermined temperature (for example, 50 ° C.). When the person finishes the heat insulation and removes the outlet plug and prepares the next rice cooking, if the outlet plug is inserted to be used for cooking again, the heat insulation is automatically terminated and When it exceeds, it is not due to the next rice cooking preparation, but the temperature is maintained as a reasonable temperature drop during a power failure.

  FIG. 3 shows a flowchart at the time of power failure in the second embodiment of the present invention. Since the operation from step S01 to S05 is the same as the operation of the first embodiment, the description thereof will be omitted, and the operation from step S08 to step S10 will be described.

  In FIG. 3, in step S05, if the power failure time is 20 minutes or more, the process proceeds to step S10, and if it is less than 20 minutes, the process proceeds to step S08 and the heat insulation is continued.

  In step S10, if the pan temperature is 50 ° C. or lower, the process proceeds to step S09 and ends without resuming the heat retention. If it exceeds 50 degreeC, it will progress to step S08 and heat insulation will be continued.

  As mentioned above, in this Embodiment, it recovers from the power failure more than 1st predetermined time (20 minutes) during heat retention, and the pan temperature by the pan temperature detection means 3 is below 1st predetermined temperature (50 degreeC). If this is the case, it will be possible to automatically stop the warming because it is determined that continuation of the warming is not necessary, so even if you unplug the outlet plug during the warming and prepare for the next rice cooking, Detecting that the temperature according to 3 is 50 ° C. or lower, which is a first predetermined temperature that is closer to room temperature than the time of heat retention, can be determined to be unnecessary, and heat retention can be automatically terminated. It is possible to avoid the situation that rice cannot be cooked by automatic continuation.

  In the present embodiment, the first predetermined time is 20 minutes and the first predetermined temperature is 50 ° C. The first predetermined time is not a short time such as replacement of the outlet, but the next rice cooking It is sufficient if the time is less than the time required for preparation, and the first predetermined temperature may be between the temperature at the time of warming and the room temperature, and is not due to the next rice preparation preparation, but is appropriate as a temperature drop during a power failure. Any temperature is acceptable.

  That is, it may be changed depending on the temperature before the power failure is detected, or may be changed depending on the room temperature, the amount of food before the power failure, or the time of the power failure, and is not limited to this time and temperature. It is clear.

  Also, display means such as LCD and LED, sound notification means, communication means to the outside, etc. are provided, and there is a power outage for the first predetermined time or more during heat insulation, and the pan temperature is below the first predetermined temperature. Obviously, it may be notified that automatic termination has occurred.

(Embodiment 3)
Since the block diagram which shows the jar rice cooker in this Embodiment is the same as that of Embodiment 1, description is abbreviate | omitted and the operation | movement and an effect | action are demonstrated hereafter.

  The control means 6 controls the pot heating means 2 according to a preset sequence according to the detected temperature of the pot temperature detecting means 3 and the output of the time measuring means 5 for measuring time, and first cooks rice, and then Keep warm automatically.

  When power supply from the commercial power supply is lost during the heat insulation, the power failure detection means 7 detects that there is no power supply, and the power failure time measuring means 8 detects a power failure while detecting the absence of power supply from the commercial power supply. Time is measured.

  Thereafter, when the power supply is detected again, the power failure recovery detection means 10 detects the power failure recovery, the power failure recovery timing means 11 measures the elapsed time after the power failure recovery, and the power failure time timing means 8 measures the time. Discontinue. In addition, by restarting the power supply, the pot heating means 2 is controlled to heat the pot 1 so that the heat can be kept.

  Here, if the power failure time by the power failure time measuring means 8 is equal to or longer than the first predetermined time (for example, 20 minutes), the power supply is lost because the outlet plug is removed for a short time for movement. It can be judged that this is not the case.

  When the power failure is restored after the power failure time has exceeded the first predetermined time (for example, 20 minutes), the pan temperature by the pan temperature detecting means 3 is not more than the first predetermined temperature (for example, 50 ° C.) and the second predetermined If the warming extension input means 9 is not operated within a time (for example, 5 minutes), the warming is automatically terminated, and if it is operated, the user explicitly indicates that the user wants to continue the warming. Therefore, the heat insulation is continued, and the heat insulation is continued when the pan temperature by the pan temperature detecting means 3 exceeds the first predetermined temperature (50 ° C.).

  FIG. 4 shows a flowchart at the time of a power failure in the third embodiment of the present invention. The operation from step S01 to S05 is the same as the operation of the first embodiment, and thus the description thereof is omitted. The operation from step S06 to step S10 will be described.

  In FIG. 4, in step S05, if the power failure time is 20 minutes or more, the process proceeds to step S10, and if it is less than 20 minutes, the process proceeds to step S08 and the heat insulation is continued.

  In step S10, if the pan temperature is 50 ° C. or lower, the process proceeds to step S06, and if it exceeds 50 ° C., the process proceeds to step S08, and the heat insulation is continued.

  In step S06, if the power failure recovery time is within 5 minutes, the process proceeds to step S07. If it exceeds 5 minutes, the process proceeds to step S09, and the heat insulation is not resumed and is terminated.

  In step S07, if the warming extension input means 9 is operated and there is an input, the process proceeds to step S08, and the warming is continued. If there is no input, the process loops to step S06.

  As mentioned above, in this Embodiment, it recovers from the power failure more than 1st predetermined time (20 minutes) during heat retention, and the pan temperature by the pan temperature detection means 3 is below 1st predetermined temperature (50 degreeC). If the user is left without operating the warming extension key, it will be judged that it is not necessary to continue the warming and the warming can be automatically terminated. Even when it is pulled out and the next rice preparation is performed, it is detected that the temperature by the pan temperature detecting means 3 is a temperature equal to or lower than 50 ° C., which is the first predetermined temperature that is closer to room temperature than when keeping warm, It can be judged that it is unnecessary, and the heat insulation can be automatically terminated, and the situation where rice cannot be cooked by the automatic heat insulation can be avoided.

  In addition, if the warming extension key as the warming extension input means 9 is operated within the second predetermined time (5 minutes) before automatically terminating the warming, the warming can be continued. Thermal insulation can be continued according to the intention.

  In the present embodiment, the first predetermined time is 20 minutes, the second predetermined time is 5 minutes, and the first predetermined temperature is 50 ° C. However, the first predetermined time is about the replacement of the outlet. The second predetermined time is not limited to a short period of time, and it may be less than the time required for the next rice cooking preparation. The second predetermined time is returned even if the user is in the house that the user is using even during a commercial power failure or breaker operation. It may be a time that can be operated sometimes.

  Moreover, as 1st predetermined temperature, what is necessary is just between the temperature at the time of heat retention, and room temperature, it is not based on the next rice cooking preparation, and should just be a temperature appropriate as a temperature fall during a power failure, so before power failure detection It may be changed according to the temperature of the room, or it may be changed depending on the room temperature, the amount of cooked food before the power outage or the time of the power outage, and it is obvious that it is not limited to this time and temperature. .

Further, although the dedicated heat retention extension key is used as the heat retention extension input means, it is obvious that the user's intention can be confirmed, so that it may be used also as another input means operated by the user.

  Also, display means such as LCD and LED, sound notification means, communication means to the outside, etc. are provided, and there is a power outage for the first predetermined time or more during the heat retention, and the pan temperature is below the first predetermined temperature. Therefore, it may be notified that automatic termination has occurred.

  Furthermore, before the heat insulation is automatically terminated, there is a power outage for the first predetermined time or more during the heat insulation, and the pan temperature is equal to or lower than the first predetermined temperature. When doing so, you may alert | report so that operation of a 2nd input means may be encouraged.

  As described above, the jar rice cooker according to the present invention can easily realize the heat retention control in line with the user's intention when the power is restored during a power failure, so that it can be used for cooking appliances having a heat retention function. Is also applicable.

DESCRIPTION OF SYMBOLS 1 Pan 2 Pan heating means 3 Pan temperature detection means 4 Lid 5 Timing means 6 Control means 7 Power failure detection means 8 Power failure time measurement means 9 Warming extension input means 10 Power failure recovery detection means 11 Power failure recovery time measurement means

Claims (2)

A pot that contains rice and water, a lid that opens and closes the top of the pot, a pot heating means that heats the pot, a control means that controls the pot heating means to cook rice and keep warm, and detects a power outage A power failure detection means for measuring, a power failure time timing means for timing the time determined by the power failure detection means to be a power failure, a power failure recovery detection means for detecting a power failure recovery, and a power failure recovery timing means for timing the time after the power failure recovery And a heat retention extension input means for instructing a heat retention extension, and the control means detects the power failure recovery by the power failure recovery detection means after the power failure detection means detects the power failure during the heat insulation. If the time measured by the time measuring means exceeds the first predetermined time and the time measured by the power failure recovery time measuring means is not input by the heat retention extension input means within the second predetermined time, the heat retention is automatically terminated. Over rice cooker. A pan for storing rice and water, a lid that covers the top of the pan so as to be opened and closed, a pan heating means for heating the pan, a pan temperature detecting means for detecting the temperature of the pan, and detection by the pan temperature detecting means Control means for controlling the pan heating means according to the temperature to cook rice and keep warm, a power failure detection means for detecting a power failure, a power failure time timing means for timing the time determined to be a power failure by the power failure detection means, A power failure recovery detection means for detecting a power failure recovery, a power failure recovery timing means for timing the time after power failure recovery, and a heat retention extension input means for instructing a heat retention extension, the control means detects the power failure during the heat retention After a power failure is detected by the means, when a power failure recovery is detected by the power failure recovery detection means, the temperature detected by the pan temperature detection means is exceeded after the time measured by the power failure time counting means exceeds a first predetermined time. First predetermined Degrees or less and the if there is no input by the insulation extension input means time measured by the power failure recovery time measuring means within a second predetermined time, rice cookers which make automatic termination warmth.

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