JP4364153B2 - Gas stove with alert function - Google Patents

Description

  The present invention relates to a gas stove with a warning function that alerts by sound, and more particularly to a gas stove that can perform alerting by sound while reducing battery consumption of the stove power supply.

  Conventionally, a gas stove with a caution function that alerts the user by raising a caution sound is known to improve the user's safety and convenience. There has been proposed one that alerts and informs the work to be taken (see, for example, Patent Document 1). This gas stove is applied to a gas stove with a rice cooking function, for example, but when the user presses the rice cooking switch, an instruction to set the gas burner's heating power adjustment lever to the appropriate heating position is heard. A guide is provided to inform the user.

When the user knows the content of the alert by this voice guide and sets the heating power adjustment lever to the appropriate heating power position, the proper rice cooking control proceeds according to the rice cooking control program, thereby realizing a good rice cooking.
JP 2004-205177 A

  By the way, the above-mentioned voice guide can be performed using a voice IC, and a voice guide related to alerting is recorded in the voice IC, and the voice guide is output from the voice IC when an alerting factor occurs. If it is amplified and output from the speaker, it is possible to call attention by voice guidance. If a beep sound is recorded in the voice IC, it is possible to call attention with a beep sound.

  However, these voice-guided and audible alerting methods require a current to flow through the voice circuit in order to operate the voice IC and speaker, and therefore consume more current than the method of displaying a text message on the liquid crystal display. . For this reason, in a gas stove where a battery is frequently used as a power source, the battery life is rapidly lowered, and it is inappropriate to adopt a sound alert system.

  The voice guide is convenient for users who temporarily leave the gas stove during cooking or for elderly users, but it is not necessary for those who feel the voice guide is annoying and annoying. The result is simply a shortened battery life.

  In view of the above problems, an object of the present invention is to provide a gas stove that can perform alerting by sound while reducing consumption of a battery of a stove power supply.

In order to achieve the above object, the gas stove with a reminder function of the present invention is a gas stove with a sound alert function, which uses a battery as a stove power source. a sound IC guide means driven by the row Utotomoni the battery alerted by voice guide, equipped with a piezoelectric buzzer means for performing alerting buzzer sound when the alert factor occurs, the alert factors Depending on the type, the piezoelectric buzzer means or both the piezoelectric buzzer means and the voice IC guide means are operated, and both the voice IC guide means and the piezoelectric buzzer means are used as a voice mode for alerting by sound. And a mode without sound for operating only the piezoelectric buzzer means can be switched. When the voiceless mode is selected, the voice IC guide means is deactivated by shutting off the power supply from the battery, regardless of the type of alerting factor that occurs, and only the piezoelectric buzzer means is activated. It is characterized by making it .

  In the present invention, when an alerting factor is generated, alerting is performed with a buzzer sound by a piezoelectric buzzer or the piezoelectric buzzer sound and a voice guide by a voice IC according to the type of the alerting factor. In this case, due to the operating characteristics of the gas stove, there are many alerting factors to the extent that a buzzer sound can be done, such as stove ignition / extinguishing operation, timer time increase / decrease operation, and operation to raise / lower the set temperature. Since the buzzer consumes less current and has a lower operating voltage than the voice IC and speaker, if the buzzer is equipped with a piezoelectric buzzer means in addition to the voice IC guide means, it can be alerted by the piezoelectric buzzer. The battery life of the stove power supply can be reduced and the battery life can be extended, and even when the battery voltage falls below the rated voltage, the gas stove can be used safely for a long time by alerting with a piezoelectric buzzer.

  Furthermore, as a voice mode for alerting by sound, a mode with a voice for operating both the voice IC guide means and the piezoelectric buzzer means and a mode without a voice for operating only the piezoelectric buzzer means can be switched to provide no voice. When the mode is selected, if only the piezoelectric buzzer is activated regardless of the type of alerting factor, battery consumption can be further reduced and alerting by sound can be performed. It can be extended further.

  In addition to being able to switch between the voice mode and the voiceless mode by manual selection, it is also possible to switch from the voice mode to the voiceless mode by automatic selection when the battery voltage drops below a specified voltage. When the battery voltage drops below the specified voltage, the voice mode automatically switches to the no voice mode and alerts only with the piezoelectric buzzer, so the alert function by sound is lost in a short time even after the battery voltage drops. Alerts can be carried out without doing.

  According to the present invention, alerting by sound can be performed while reducing the consumption of the battery of the stove power supply, and the battery life can be extended.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a gas stove with a warning function according to the present invention. In this embodiment, the gas stove 1 is equipped with a sound IC guide means and a piezoelectric buzzer means in the stove body 4 to provide a sound alert function, and cooking starts from the ignition of the burner. After the cooking is complete and before the burner is extinguished, if a warning alert occurs to the user regarding safety, combustion status, cooking progress, etc. The buzzer and voice guide are used to call attention. This will be described later.

  As shown in FIG. 1, the gas stove 1 is a drop-in type in which a thin rectangular main body 4 with an open top is dropped into an opening 3 opened in a kitchen countertop 2 and suspended. The standard burner 6 is opened on the left opening on the front side, the large burner 7 is opened on the right opening, and the small burner 8 is opened on the rear central opening. The burners 9 (see FIG. 2) are placed above and below the grill 10 that is opened and closed by a door 10a installed in a substantially central portion of the stove body 4, and these burners 6 to Operation knobs 11 to 14 having both functions of ignition and extinguishing 9 and the adjustment of thermal power are provided in a freely accessible manner. On the right side of the front surface of the stove body 4, a power switch 4 a that also serves as a stove power indicator lamp is provided obliquely above the operation knob 13.

  When the operation knobs 11 to 14 are pushed by a finger, a spring mechanism (not shown) works to project forward, and the burner burners 6, 7, 8 and the grill burner 9 are ignited in conjunction with this. The thermal power burned by the ignition of the burners 6 to 9 can be changed to large or small by manually rotating the operation knobs 11 to 14 protruding forward. The operation knobs 11 to 14 include an ignition monitoring sensor 26 (FIG. 3) that detects that the ignition operation has been performed by pushing the operation knob, and a rotation amount sensor that detects the rotation amount of the knobs 11 to 14 through the rotation angle of the shaft. 27 (FIG. 3) is incorporated.

  Each stove burner 6-8 comes into contact with a pan-bottom temperature sensor 15 for detecting the temperature of the pan-bottom by touching the pan-bottom placed on the five victories with a thermal head that can be moved up and down by a spring. Pan detection that detects the presence or absence of a pan on the virtues by detecting the movement of the lead wire connected to the thermal head when the thermal head is pushed down with a detection mechanism using a magnet on the support of the pan bottom temperature sensor A sensor 16 (see FIG. 2) is provided. The pan bottom temperature sensor 15 is used to set, monitor and control the heating temperature of the pan, and the pan detection sensor 16 is used to prevent heating when the pan is not placed. The

  Under the left knob 14 on the front surface of the stove body 4, there is provided a battery chamber 17 for storing a stove-powered dry cell. By pressing the power switch 4a, the stove power is turned on, and the switch 4a Lights up and indicates that the power supply has been turned on. Below the right knobs 11 to 13 on the front surface of the stove body 4 is provided a thin and flat type operation panel 18 in which operation switches are formed by sheet keys. The operation panel 18 has a front end lid. When 18a is pushed in, the locking means is released, and it can be freely moved in and out so as to protrude forward by the force of the spring.

  This operation panel 18 has switches and indicator lamps for setting the heating temperature and heating time of the stove burners 6 to 8, selection of cooking contents, etc., and automatic / manual firing selection of the grill burner 9 and automatic firing. There are provided a switch, a display lamp, and the like for selecting the kind of the fired product, and further, an audio switch and its display lamp (audio lamp). In FIG. 1, the voice switch is denoted by reference numeral 19.

  The voice switch 19 is used to selectively switch between a voice mode with a voice guide and a piezoelectric buzzer and a voiceless mode with only a piezoelectric buzzer as a voice mode for alerting. . Each time the voice switch 19 is pressed, the voice mode is alternately switched between the voice-on mode and the voice-off mode. As the user knows, the voice lamp is lit in the voice-on mode selection state and the voice-off mode selection state. The sound lamp turns off. In the present invention, as described above, depending on the type of the alerting factor, the alerting by the piezoelectric buzzer or the alerting by the piezoelectric buzzer and the voice guide is performed, but when the no-speech mode is selected, the type of the alerting factor is selected. Regardless, one feature is that attention is given only by the piezoelectric buzzer.

  2 and 3 show schematic configurations of the gas circuit and the control electric circuit of the gas stove 1. As shown in FIG. 2, the gas circuit 20 of the gas stove 1 branches downstream of the main plug 21, and the stove burners 6, 7, 7, respectively, are connected via the electromagnetic safety valve 22 and the flow rate adjusting electric valve 23. 8 and the grill burner 9. In the vicinity of each burner 6-8, there are an ignition electrode 24 for igniting the burner by spark discharge, a flame detection sensor 25 for monitoring the burner combustion, the pan bottom temperature sensor 15 and the pan detection sensor 16. Is provided. An ignition electrode 24 and a flame detection sensor 25 are also provided in the vicinity of the upper and lower grill burners 9.

  As shown in FIG. 3, the control electric circuit 30 of the gas stove 1 includes a control circuit 40 connected to a battery 41 of a stove power supply via a booster circuit 42, and the control circuit 40 includes a battery 41. Are connected to the igniter 43, the piezoelectric buzzer 44, and the battery voltage monitoring device 50 connected to the battery 41, and the voice IC 45 connected to the battery 41 via the booster circuit 42. The voice IC 45 includes a normally closed output contact type relay 47 and An audio amplifier circuit 46 connected to the battery 41 is connected via the booster circuit 42, and a speaker 48 is connected to the audio amplifier circuit 46. Further, the control circuit 40 is connected to a reset circuit 49 connected to the battery 41 via the booster circuit 42.

  The voice IC 45, the voice amplification circuit 46, and the speaker 48 constitute voice IC guide means (voice guide means for short), and this voice IC guide means is activated when the generated alerting factor is of a type that performs voice guidance. To do. That is, a voice guide corresponding to the type of alerting factor is selected and output from the voice IC 45 by a signal from the control circuit 40, amplified by the voice amplifier circuit 46, and applied to the speaker 48. Output voice guide. The piezoelectric buzzer 44 constitutes a buzzer means together with the switching transistor 44a in the preceding stage, and when a warning factor is generated, it operates regardless of the type, and the switching transistor 44a is turned ON / OFF by a signal from the control circuit 40, The buzzer sound is output by driving the piezoelectric buzzer 44 with the output of the transistor 44a that performs the ON / OFF operation.

  In order to deactivate the voice guiding means, a signal from the control circuit 40 turns on the switching transistor 47a in the previous stage of the relay 47, and a current is passed through the relay 47 to open the contact point. Is disconnected, and the sound amplification circuit 46 and the speaker 48 are deactivated. The audio IC 45 is inactivated by adding a reset output from the control circuit 40 thereto.

  The control circuit 40 receives detection signals from the flame detection sensors 25 of the gas burners 6 to 9, and detection signals from the pot bottom temperature sensor 15 and the pot detection sensor 16 of the burners 6 to 8, and further controls the operation knobs 11 to 14. The detection signals of the ignition monitoring sensor 26 and the rotation amount sensor 27 are input, and the control circuit 40 controls the main plug 21 of the gas circuit, the electromagnetic safety valve 22, the electric valve 23 for adjusting the flow rate, and the like.

  In the gas stove 1, for example, the left burner 6 of the gas burners 6 to 9 is used, and when the operation knob 11 of the burner 6 is pushed in, a spring mechanism (not shown) works by the push and protrudes forward. The ignition monitoring sensor 26 detects that the ignition operation has been performed, and this detection signal is input to the control circuit 40. The control circuit 40 outputs the operation signal to open the main valve 21 and the electromagnetic safety valve 22, and further The electric valve 23 is opened and maintained at a predetermined opening. Thereafter, the switching transistor 43a in the previous stage of the igniter 43 is turned on, the igniter 43 is operated for a predetermined time, a spark is discharged from the ignition electrode 24 of the burner 6, and the burner 6 is ignited. When the burner 6 is ignited and combusted, the flame detection sensor 25 detects the combustion flame, and the detection signal of the flame detection sensor 25 is continuously input to the control circuit 40, thereby completing the ignition of the burner 6 and the start of combustion. The blow-off of etc. is monitored.

  Then, after the cooking is started from the ignition of the burner 6 and after the cooking is finished, until the burner 6 is extinguished, a control circuit is provided when a warning factor is generated regarding safety, combustion status, cooking progress status, etc. to the user. 40 sounds the piezoelectric buzzer 44 to call attention, and depending on the type of the warning call, a voice guide corresponding to the situation is selected from the voice IC 45, and this is output via the voice amplifier circuit 46 and the speaker 48. The guide also alerts you.

  In the present invention, “calling attention” means calling for attention to encourage the user to check and confirm safety, combustion status, cooking progress, etc., and in some cases to encourage appropriate measures. In addition, in the case of audio guidance, it also means that the user is instructed to complete cooking or work to be taken during cooking.

If there are some examples of voice guides, for example, there is success or failure of ignition to the burner 6, and if ignition is successful, a voice guide of "the left stove burner has been ignited" is output from the speaker 48, and ignition is performed. If it fails, a voice guide saying “Failed to ignite left stove burner” is output. Further, when the temperature of the pan boiling the hot water on the burner 6 is detected by the pan bottom temperature sensor 15 and the detected temperature reaches the boiling temperature, a voice guide of “water boiling is completed” is output. When the burn-out of the burner 6 is detected by the flame detection sensor 25, a voice guide for informing that effect is output.

  By the way, in order to operate the voice IC guide means, that is, the voice IC 45 and the speaker 48, it is necessary to pass a current through the voice circuit, so that the consumption current is large and the battery capacity of the dry battery 41 is greatly consumed, so the battery life is quickly reduced. To do. Therefore, in the present invention, as described above, as the voice mode for alerting with sound, in addition to the voice mode with both the voice guide and the piezoelectric buzzer, the voiceless mode with only the piezoelectric buzzer is provided, and the operation panel The voice switch 18 can be switched between the voice mode and the voiceless mode, and when the voiceless mode is selected, only the piezoelectric buzzer is used for alerting regardless of the type of alerting factor that has occurred. I tried to do. Furthermore, the battery voltage monitoring device 50 that monitors the voltage of the battery 41 (in this embodiment, two single dry batteries connected in series) has been reduced from a rated voltage of 3V to a predetermined lower voltage, for example, less than 2.7V. When it is detected, the control circuit 40 recognizes this by the detection signal, and automatically selects the no sound mode. The predetermined drop voltage may be determined as appropriate in relation to the load on the battery, and is not limited to 2.7V.

  When the voice mode is switched by manual selection by the voice switch 19 or automatic selection by lowering the battery voltage, the control circuit 40 rewrites the voice mode stored in the built-in memory to the selected mode, and also selects the selected voice. It is discriminated whether the mode is a mode with voice or a mode without voice, and in the mode without voice, the voice guide means is inactivated.

  According to the alerting control having the speech mode as described above, by switching the speech mode to the speechless mode by the speech switch 19, when an alerting factor occurs, the IC guide means having a large current consumption is used. Without using voice guidance, it is possible to alert only with a piezoelectric buzzer, so it is possible to alert the user with sound by reducing the power consumption of the battery of the stove, extending the battery life, Moreover, the person who feels that the voice guide is troublesome can be released from the troublesome feeling of the voice guide. When the battery voltage decreases to a predetermined voltage or lower, the voice mode is automatically switched to the voiceless mode in which only the piezoelectric buzzer 44 is used for alerting. Therefore, the alerting by sound can be performed without ending in a short time. it can.

  Hereinafter, the control of alerting by sound in this embodiment will be described with reference to the flowchart shown in FIG.

  In FIG. 4, when the voltage of the battery 41 detected by the voltage monitoring device 50 in step S1 is equal to or higher than the predetermined drop voltage of 2.7 V, the voice mode stored in the memory of the control circuit 40 is voice in step S2. It is determined whether or not there is a voice mode. If the voice mode is selected, it is determined whether or not the voice switch 19 is pressed in step S3. If the voice switch 19 is pressed, it is determined that the voiceless mode is selected, and step S4 is performed. Then, the voice mode of the memory is rewritten from the voice mode to the voiceless mode, and the process goes to step S9. If it is determined in step SS3 that the voice switch has not been pressed, the process proceeds to step S9.

  When it is determined in step S2 that the voice mode of the memory is the no-voice mode, it is determined in step S5 whether or not the voice switch has been pressed. In step S6, the voice mode of the memory is rewritten to the voice mode, and then the process goes to step S9. If it is determined that the voice switch is not pressed, the process goes to step S9 as it is.

  When it is detected in step S1 that the battery voltage is less than 2.7 V, it is determined in step S7 whether or not the voice mode stored in the memory is a voice mode. In step S8, the voice mode of the memory is rewritten to the voiceless mode, and the process goes to step S9. If it is determined in step S7 that the voiceless mode is selected, the process directly proceeds to step S9.

  In step S9, it is determined whether or not an alerting factor has occurred. If there is no alerting factor, the process returns to step S2. If an alerting factor has occurred, the content of the alerting factor is determined in step S10. It is determined whether or not only the buzzer sound of the piezoelectric buzzer 44 is necessary, and when it is determined that only the buzzer sound is sufficient, the piezoelectric buzzer 44 is operated to alert the user in step S11. If it is determined in step S10 that the type of alerting factor is determined and the type of voice guidance is to be used, first in step S12, a piezoelectric buzzer is used to alert the user, and then in step S13, the voice stored in the memory. It is determined whether or not the mode is a mode with a voice. If the mode is a mode with a voice, the voice guide means is operated in step S14 to call attention by a voice guide according to the content of the warning factor. If it is determined in step S13 that there is no sound mode, the process returns to step S2.

  As is clear from the above embodiments, according to the present invention, sound alerting can be performed while reducing the battery consumption of the stove power supply, and the battery life can be extended.

It is a perspective view which shows one Example of the gas stove with the alerting function of this invention. It is a schematic block diagram which shows the gas circuit of the gas stove of FIG. It is a schematic block diagram which shows the electric circuit for control of the gas stove of FIG. It is a flowchart which shows control of alerting by the sound implemented with the gas stove of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Gas stove 4 Stove main body 6-9 Burner 11-14 Operation knob 15 Pan bottom temperature sensor 16 Pan sensor 24 Ignition electrode 24 25 Flame detection sensor 26 Ignition monitoring sensor 27 Rotation amount sensor 40 Control circuit 41 Battery 44 Piezo buzzer 45 Audio IC
46 voice amplifier circuit 47 relay 48 speaker 50 battery voltage monitoring device

Claims (2)

A gas stove with a sound alert function that uses a battery as a power source.
The stove body, the sound IC guide means driven by the row Utotomoni the battery alerted by voice guide, equipped with a piezoelectric buzzer means for performing alerting buzzer sound when the alert factor occurs The piezoelectric buzzer means or both the piezoelectric buzzer means and the voice IC guide means are operated according to the type of the alerting factor ,
As a voice mode for alerting by sound, a mode with voice for operating both the voice IC guide means and the piezoelectric buzzer means and a mode without voice for operating only the piezoelectric buzzer means are switchable, When the voiceless mode is selected by switching the voice mode, the voice IC guide means is deactivated by shutting off the power supply from the battery regardless of the type of alerting factor that has occurred. A gas stove with a warning function, characterized by operating only the piezoelectric buzzer means . The mode with voice and the mode without voice can be switched by manual selection, and when the battery voltage of the stove power supply decreases below a predetermined voltage, the mode with voice is automatically selected from the mode without voice. The gas stove with a warning function according to claim 1, wherein the gas stove can be switched.

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