JP2019002632A - Control device and gas apparatus - Google Patents

Abstract

To provide a control device capable of reducing power consumption by facilitating a change of a preset temperature for preventing overheat of a cooking instrument to be heated by a gas apparatus, and a gas apparatus with the control device.SOLUTION: The present invention relates to a control device 100 for a gas apparatus comprising: a first thermoelectric couple 220 which is heated by a flame of a gas burner and generates an electromotive force; a second thermoelectric couple 230 which generates an electromotive force corresponding to a temperature of a cooking instrument; and an instrument valve 240 which opens and closes a channel for supplying a gas to the gas burner. The control device 100 comprises: a first cutoff part 110 for closing the instrument valve 240 while the first thermoelectric couple 220 does not generate the electromotive force; a second cutoff part 120 for closing the instrument valve 240 when the electromotive force of the second thermoelectric couple 230 becomes equal to or higher than a preset value; a setting part 130 capable of switching the preset value of the second cutoff part 120 to different values; and a power control part 140 which controls power supply to the control device 100. The power control part 140 supplies power while the first thermoelectric couple 220 generates the electromotive force.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a control device for gas equipment and a gas equipment provided with the control device.

  2. Description of the Related Art Conventionally, a device related to a gas cooker that heats a cooking tool such as a pan by gas combustion, and a device related to a structure for preventing overheating of the cooking tool is known (see Patent Document 1 below). The gas cooker described in Patent Document 1 is a gas burner that heats a cooking utensil by gas combustion, a first thermocouple that is heated by a flame of the gas burner and generates an electromotive force according to the heating condition, and cooking A second thermocouple that generates an electromotive force according to the temperature of the tool; and a solenoid valve that is operated by a combined electromotive force of the first and second thermocouples and that controls the supply of gas to the gas burner. .

  The gas cooker of Patent Document 1 is, for example, a burner thermocouple that is heated by a flame of a gas burner and generates an electromotive force according to the heating condition, and a pan thermocouple that generates an electromotive force according to the pan bottom temperature. The solenoid valve is operated by the combined electromotive force. Therefore, while the pan can be reliably prevented from being overheated, a controller and a power source for operating the electromagnetic valve are unnecessary, and the cost can be greatly reduced. In addition, since each thermocouple is connected in series so that the electrical polarity is reversed, even if the gas burner goes out, the solenoid valve can be closed in a very short time, making it safe as a gas cooker. Increased dramatically.

Japanese Utility Model Publication No. 6-64002

  As described above, it is assumed that the gas cooking utensil for preventing overheating of the cooking utensil needs to change the temperature setting for operating the solenoid valve, for example, by changing the cooking utensil material or cooking contents. . However, since the gas cooking appliance of Patent Document 1 operates the electromagnetic valve by the combined electromotive force of the first thermocouple and the second thermocouple, it is difficult to change the temperature setting for operating the electromagnetic valve.

  On the other hand, when using a temperature controller that receives a thermocouple signal that measures the temperature of the cooking utensil and controls the solenoid valve or the like so that the temperature of the cooking utensil becomes the set temperature, the plug of the power cord is usually connected. It is necessary to supply power by plugging into an outlet, which increases power consumption.

  The present invention has been made in view of the above problems, and a control device that can easily change a set temperature to prevent overheating of a cooking utensil heated by a gas appliance and can reduce power consumption, and the control device thereof It aims at providing the gas equipment provided with.

  In order to achieve the above object, a control device of the present invention includes a gas burner for heating a cooking utensil, a first thermocouple that is heated by a flame of the gas burner to generate an electromotive force, and an electromotive force according to the temperature of the cooking utensil. A control device for a gas appliance comprising a second thermocouple for generating gas and an appliance plug for opening and closing a flow path for supplying gas to the gas burner, wherein the first thermocouple does not generate the electromotive force Sometimes the first shut-off part that closes the instrument plug, the second shut-off part that closes the instrument plug when the electromotive force of the second thermocouple exceeds a set value, and the set value of the second shut-off part are different. A setting unit that can be switched to a value, and a power control unit that controls supply of power to the control device, wherein the power control unit is configured to output the power when the first thermocouple generates the electromotive force. It is characterized by performing supply.

  The gas appliance which is the control target of the control device of the present invention cooks food by heating a cooking utensil with a flame of a gas burner. When the gas is ignited in the gas burner, the first thermocouple is heated by the flame of the gas burner to generate an electromotive force. The power control unit of the control device of the present invention is configured to supply power to the control device when an electromotive force due to the heating of the flame is generated in the first thermocouple. Thereby, a control apparatus is started and control of gas equipment by a control apparatus is attained. In other words, according to the control device of the present invention, until the first thermocouple is heated by the flame of the gas burner to generate an electromotive force, the power control unit interrupts or suppresses the supply of power to the control device, A hibernation state with reduced power consumption can be maintained.

  When the flame is extinguished for some reason while the gas is supplied to the gas burner, the temperature of the first thermocouple is lowered, and the predetermined electromotive force when the first thermocouple is heated by the flame disappears. The 1st interruption | blocking part of the control apparatus of this invention closes the instrument plug which opens and closes the flow path which supplies gas to a gas burner, if a 1st thermocouple loses this predetermined electromotive force. As a result, the gas supply to the gas burner can be shut off and the safety of the gas equipment can be ensured when the extinction occurs when the flame disappears in a state where the gas is supplied to the gas burner.

  When the gas burner is ignited, the cooking utensil is heated by the flame of the gas burner and the temperature rises. Then, a 2nd thermocouple produces the electromotive force according to the temperature of a cooking appliance. The second blocking unit compares the electromotive force generated in the second thermocouple with a preset value of the electromotive force of the second thermocouple. If the temperature of the cooking utensil is within a normal range, the electromotive force generated in the second thermocouple will be less than the set value, the utensil will not be closed by the second shut-off part, and the cooking utensil will be heated by the flame of the gas burner. And cooking.

  On the other hand, for example, when the temperature of the cooking utensil rises to a preset temperature or higher due to emptying or the like, an electromotive force greater than the set value is generated in the second thermocouple, and the utensil plug is closed by the second blocking unit. Thereby, supply of the gas with respect to a gas burner is interrupted | blocked, the flame of a gas burner is extinguished, and the overheating of a cooking utensil can be prevented. Therefore, the safety of the gas equipment can be ensured.

  Furthermore, the control device of the present invention includes a setting unit that can switch the setting value of the second blocking unit to a different value. Therefore, the setting unit can easily change the set value of the electromotive force of the second thermocouple whose second shut-off unit closes the appliance plug, and easily sets the set temperature of the cooking appliance when extinguishing the flame of the gas burner. Can be changed. Thereby, the flame of a gas burner can be extinguished at the allowable temperature or less of the cooking utensil which differs depending on the material of the cooking utensil. Therefore, the safety of the gas appliance can be further improved and the cooking utensils can be more reliably prevented from being damaged.

  In addition, when the instrument plug is closed by the second shut-off portion and the flame of the gas burner disappears, the first thermocouple loses a predetermined electromotive force generated when heated by the flame of the gas burner. Here, the power control unit of the control device of the present invention supplies power to the control device when the first thermocouple generates the predetermined electromotive force. Therefore, when the first thermocouple loses the predetermined electromotive force, the power control unit cuts off or suppresses the supply of power to the control device. As a result, the control device enters a sleep state in which power consumption is reduced. Thereby, reduction of the power consumption of a control apparatus is achieved.

  The power control unit is configured to intermittently supply the power and operate the second cutoff unit intermittently when the electromotive force of the second thermocouple is less than the set value. May be. That the electromotive force of a 2nd thermocouple is less than a preset value means that the temperature of a cooking appliance is less than preset temperature. Thus, when the temperature of the cooking utensil is lower than the set temperature, the power control unit can intermittently supply power to the control device, thereby further reducing the power consumption of the control device. In addition, by intermittently supplying power to the control device and operating the second shut-off unit intermittently, when the temperature of the cooking utensil exceeds the set temperature, the utensil is closed and the gas burner flame is extinguished. It is possible to prevent overheating of the cooking utensil.

  The power control unit may be configured to supply the power when receiving a signal indicating that the instrument plug is opened from a micro switch provided in the instrument plug. When the appliance plug is opened and the gas burner is ignited, the power control unit receives a signal indicating that the appliance plug is opened from the microswitch, supplies power to the control device, and activates the control device.

  When the gas burner is ignited, the first thermocouple is heated by the flame of the gas burner to generate an electromotive force, and the instrument plug is kept open. On the other hand, when the gas burner is not ignited even when the instrument plug is opened, the first thermocouple does not generate an electromotive force when heated by the flame. In this case, a 1st interruption | blocking part closes an instrument stopper and interrupts | blocks supply of the gas to a gas burner. Thereafter, the power control unit cuts off or suppresses the supply of power to the control device. Thereby, the safety of the gas equipment is ensured, and the power consumption of the control device is reduced.

  The second shut-off unit is configured to calculate a temperature increase rate of the cooking utensil based on an electromotive force of the second thermocouple, and close the utensil stopper when the temperature increase rate is equal to or higher than a set value. May be. Accordingly, the second shut-off unit detects a rapid temperature increase equal to or higher than a preset value of the temperature increase rate, and the temperature of the cooking utensil rises so that the electromotive force of the second thermocouple becomes equal to or higher than the set value. Before, the instrument plug can be closed. Thereby, it can prevent more reliably that the temperature of a cooking appliance exceeds a preset value, and can improve the safety | security of gas equipment.

  The control device of the present invention may include a battery that supplies power to the control device. Thereby, the control apparatus of this invention becomes unnecessary [the supply of the electric power from the outside], and can improve the freedom degree of the layout of gas equipment. In addition, by controlling the power supplied from the battery by the power control unit, it is possible to suppress power consumption of the control device, suppress battery consumption, and extend the life of the battery.

  The setting unit may be configured by a dip switch. A dip switch is a small switch mounted on an electronic circuit board and used for various settings of electronic equipment. By configuring the setting unit with a dip switch, the setting value of the electromotive force of the second thermocouple can be easily changed in the setting unit, and the temperature of the cooking utensil having a correlation with the electromotive force of the second thermocouple can be changed. The set value can be easily changed.

  The setting unit may include a setting display unit that displays a set value of the electromotive force. Thereby, in the setting part, the set value of the electromotive force of the second thermocouple, that is, the set value of the temperature of the cooking appliance having a correlation with the electromotive force of the second thermocouple becomes obvious. Therefore, in the setting unit, the setting suitable for the cooking utensil can be more reliably performed, and when the temperature of the cooking utensil exceeds the allowable temperature or the temperature of the cooking utensil is lower than the allowable temperature, It can be prevented from closing.

  The first blocking unit has an electronic circuit for opening and closing the instrument plug, and the second blocking unit is an open / close switch provided in the electronic circuit and an open / close display for displaying an open / closed state of the open / close switch You may have a part. Thereby, the open / closed state of the open / close switch becomes clear at a glance, and it can be easily confirmed whether or not the gas burner can be ignited.

  The gas appliance according to the present invention includes a control device according to any one of the above forms, a gas burner that heats the cooking utensil, a first thermocouple that generates an electromotive force by being heated by a flame of the gas burner, and a temperature of the cooking utensil. A second thermocouple that generates a corresponding electromotive force, and an instrument plug that opens and closes a flow path for supplying gas to the gas burner are provided. According to the gas appliance of the present invention, by providing any one of the above-described forms of the control device, it is possible to achieve the same effect as that of the control device described above.

  The gas appliance of the present invention includes a pot as the cooking utensil, and the pot has an inner wall heated by the flame of the gas burner and an outer wall to which a hollow rotating shaft is fixed, and the second thermocouple includes: It may be inserted inside the outer wall through the rotating shaft and in contact with the inner wall. That is, the gas appliance of the present invention may be a commercial rotary hook. In this case, the temperature of the inner wall of the kettle that is heated by the flame of the gas burner and reaches the highest temperature by inserting the second thermocouple into the outer wall through a hollow rotating shaft fixed to the outer wall of the kettle and bringing it into contact with the inner wall. Can be measured directly. Therefore, the safety of the gas device can be improved without opening an extra hole or the like in the outer wall of the hook.

  ADVANTAGE OF THE INVENTION According to this invention, the change of the preset temperature which prevents the overheating of the cooking utensil heated by gas equipment is easy, and the gas equipment provided with the control apparatus which can reduce power consumption and its control apparatus is provided. Can do.

The schematic which shows an example of embodiment of the control apparatus which concerns on this invention, and an example of gas equipment. The block diagram which shows an example of a structure of the control apparatus shown in FIG. The flowchart which shows an example of operation | movement of the control apparatus shown in FIG. The flowchart which shows an example of operation | movement of the control apparatus shown in FIG. The flowchart which shows an example of operation | movement of the control apparatus shown in FIG. The schematic front view which shows an example of the gas equipment which concerns on embodiment of this invention.

  Hereinafter, an example of an embodiment of a control device and a gas appliance according to the present invention will be described with reference to the drawings. In the following, first, an example of a configuration of a gas device that is a control target of the control device according to the present invention will be described, and then an example of an embodiment of a control device according to the present invention that controls the gas device and the present invention. An example of an embodiment of a gas appliance according to the present invention will be described.

(Example of gas equipment configuration)
FIG. 1 is a schematic diagram illustrating an example of a gas device 200 that is a control target of the control device 100 according to the embodiment of the present invention. The gas apparatus 200 includes, for example, a gas burner 210, a first thermocouple 220, a second thermocouple 230, and an instrument plug 240.

  The gas burner 210 heats the cooking utensil 250 such as a pot or a pot with the gas flame F, for example. For example, the gas burner 210 is disposed below the cooking utensil 250 and adjacent to the cooking utensil 250.

  The 1st thermocouple 220 is arrange | positioned adjacent to the gas burner 210 so that it may be heated with the flame F of the gas burner 210 containing a seed fire, for example, and an electromotive force may be produced. The first thermocouple 220 is disposed, for example, at a predetermined distance from the cooking utensil 250 and is connected to a terminal of the electronic circuit board 101 constituting the control device 100. As the first thermocouple 220, for example, a K type can be used.

  For example, the second thermocouple 230 is arranged in contact with the cooking utensil 250 so as to generate an electromotive force according to the temperature of the cooking utensil 250, and is connected to a terminal of the electronic circuit board 101 constituting the control device 100. Yes. As the second thermocouple 230, for example, a K type can be used.

  The instrument plug 240 is provided in the middle of the flow path 260 that supplies gas to the gas burner 210, for example, and opens and closes the flow path 260 that supplies gas to the gas burner 210. The instrument plug 240 can include, for example, an electromagnetic opening / closing mechanism and a manual opening / closing mechanism. More specifically, the instrument plug 240 can include, for example, an electromagnetic valve 241 as an electromagnetic opening / closing mechanism and a cock 242 as a manual opening / closing mechanism.

  The solenoid valve 241 of the instrument plug 240 is opened and closed by opening and closing the instrument plug 240 under the control of the control device 100, and closed so that the gas supply to the gas burner 210 is shut off. It is configured to switch between states. The solenoid valve 241 opens, for example, when the first thermocouple 220 is heated by the flame F including the pilot burner of the gas burner 210 to generate an electromotive force, and the flame F including the pilot burner of the pilot burner is extinguished. The thermocouple 220 is configured to close when the electromotive force of the thermocouple 220 decreases.

  The electromagnetic valve 241 constitutes a closed circuit together with the first thermocouple 220 and the electronic circuit 102 on the electronic circuit board 101 of the control device 100, for example. The electromagnetic valve 241 is opened, for example, when the first thermocouple 220 is heated by the flame F of the gas burner 210 to generate an electromotive force and a predetermined voltage is applied, and the flame F of the gas burner 210 is extinguished and the first thermocouple 220 The electromotive force is lowered, and the voltage is lowered to close.

  The cock 242 of the appliance plug 240 includes, for example, a pilot open position for igniting the pilot burner of the gas burner 210 between a fully closed state and a fully open state, and a small fire position where the heat of the gas burner 210 is small. The gas burner 210 has a fully open position where the heating power is maximized. That is, the cock 242 is configured to be able to manually switch, for example, a pilot open position, a small fire position, and a fully open position.

  The cock 242 can include, for example, a knob for performing a pushing operation. The cock 242 can open the electromagnetic valve 241 of the instrument plug 240, for example, by pushing the knob against the biasing force of the spring. Further, when the push of the knob is released, the cock 242 returns to the original state by the biasing force of the spring, and the electromagnetic valve 241 of the instrument plug 240 can be closed.

  The cock 242 becomes the pilot open position by rotating it in the opening direction at an angle of about 50 ° ± 5 ° from the fully closed position with the knob pushed in, for example. Thereby, gas is supplied to the pilot burner of the gas burner 210 in a state where the electromagnetic valve 241 of the instrument plug 240 is opened, and it is possible to ignite the pilot burner.

  For example, the cock 242 becomes a small fire position by rotating the knob in the opening direction at an angle of about 100 ° ± 5 ° from the fully closed position. Thereby, when the electromagnetic valve 241 of the instrument plug 240 is in the open state, for example, gas can be supplied to the main burner of the gas burner 210 via the cock 242 of the instrument plug 240. As a result, the main burner is ignited by the pilot flame of the pilot burner, and the cooking utensil 250 can be heated by the small-fire-power flame F of the gas burner 210.

  The cock 242 becomes the fully opened position by rotating the knob in the opening direction at an angle of about 180 ° ± 5 ° from the fully closed position, for example. As a result, when the electromagnetic valve 241 of the appliance plug 240 is in an open state, for example, gas is supplied to the main burner of the gas burner 210 via the cock 242 of the appliance plug 240, and the cooking appliance 250 is heated to the maximum thermal power flame of the gas burner 210. Heating by F becomes possible.

  The cock 242 is provided with a microswitch 243, for example. For example, the micro switch 243 is configured to transmit a signal indicating that the instrument plug 240 is opened to the control device 100 when the cock 242 is opened from the closed state by the rotation operation of the knob. Here, the micro switch 243 is a switch that has a small contact interval and a snap action mechanism, and opens and closes with a specified movement and a specified force. The snap action mechanism is a mechanism that instantaneously switches the contact at a certain operation position regardless of the operation speed or operation force of the switch.

(Embodiment of control device)
FIG. 2 is a block diagram showing an example of the configuration of the control device 100 shown in FIG. The control apparatus 100 of this embodiment is an apparatus for controlling the above-mentioned gas apparatus 200, for example, Comprising: The 1st interruption | blocking part 110, the 2nd interruption | blocking part 120, the setting part 130, the electric power control part 140, It has. The control device 100 can be configured by, for example, an electronic circuit board 101 provided with various electronic components and electronic circuits. In FIG. 1, illustration of electronic components and electronic circuits constituting each part of the control device 100 shown in FIG. 2 is omitted as appropriate.

  The 1st interruption | blocking part 110 is comprised so that the instrument plug 240 may be closed when the 1st thermocouple 220 is not producing the electromotive force. Specifically, as shown in FIG. 1, the first blocking unit 110 has, for example, a closed circuit for opening and closing the instrument plug 240. More specifically, the first shut-off unit 110 is connected to the first thermocouple 220 of the gas device 200 and the electromagnetic valve 241 of the appliance plug 240, and the first thermocouple 220 and the electromagnetic valve 241 constitute an electronic circuit that forms a closed circuit. An electronic circuit 102 on the circuit board 101 is included.

  As a result, the first shut-off unit 110 applies a voltage to the electromagnetic valve 241 of the appliance plug 240 via the electronic circuit 102 on the electronic circuit board 101 when the first thermocouple 220 generates an electromotive force, thereby Valve 241 can be opened. Further, when the first thermocouple 220 is not generating electromotive force, the first shut-off unit 110 can close the electromagnetic valve 241 without applying a voltage to the electromagnetic valve 241 of the appliance plug 240 via the electronic circuit 102. .

  The 2nd interruption | blocking part 120 is comprised so that the appliance plug 240 may be closed, if the electromotive force of the 2nd thermocouple 230 according to the temperature of the cooking appliance 250 becomes more than a setting value. That is, when the temperature of the cooking utensil 250 becomes equal to or higher than the set temperature, the second shut-off unit 120 is configured so that the electromotive force of the second thermocouple 230 corresponding to the set temperature becomes equal to or higher than the set value and the appliance plug 240 is closed. Has been. As shown in FIG. 1, the 2nd interruption | blocking part 120 has the opening / closing switch 121 provided in the electronic circuit 102 on the electronic circuit board 101, for example. The opening / closing switch 121 can be configured as an a contact that opens when the control device 100 is not activated, for example.

  For example, if the electromotive force of the second thermocouple 230 corresponding to the temperature of the cooking utensil 250 is less than a set value, the second shut-off unit 120 is heated by the flame F of the gas burner 210 with the open / close switch 121 turned on. A voltage generated by the electromotive force of the first thermocouple 220 is applied to the electromagnetic valve 241 of the appliance plug 240, and the electromagnetic valve 241 is opened. For example, when the temperature of the cooking utensil 250 is equal to or higher than the set temperature, and the electromotive force of the second thermocouple 230 corresponding to the temperature of the cooking utensil 250 is equal to or higher than the set value, the second shut-off unit 120 121 is turned off and the electromagnetic valve 241 is closed such that the voltage generated by the electromotive force of the first thermocouple 220 heated by the flame F of the gas burner 210 does not apply to the electromagnetic valve 241 of the appliance plug 240.

  The 2nd interruption | blocking part 120 calculates the temperature increase rate of the cooking appliance 250 based on the electromotive force of the 2nd thermocouple 230, for example, and closes the appliance plug 240 when the calculated temperature increase rate is more than a setting value. It may be configured. The second shut-off unit 120 is, for example, an input unit to which an electromotive force of the second thermocouple 230 is input, a storage unit configured by a memory, a control program stored in the storage unit, and an arithmetic operation that performs an operation according to the control program And an output unit for outputting a control signal for opening and closing the opening / closing switch 121. Note that the arithmetic unit can be configured by an electronic component such as a central processing unit (CPU).

  The 2nd interruption | blocking part 120 may have the opening / closing display part 122 which displays the opening / closing state of the electromagnetic valve 241 of the instrument plug 240, for example. In the example shown in FIG. 1, the open / close display unit 122 can display the open / close state of the instrument plug 240 by displaying the open / close state of the open / close switch 121, for example. That is, when the first thermocouple 220 generates an electromotive force, the electromagnetic valve 241 of the instrument plug 240 is closed with the open / close switch 121 open, and the electromagnetic valve 241 of the instrument plug 240 is closed with the open / close switch 121 closed. The valve 241 is in an open state.

  Therefore, the open / close display unit 122 can be configured such that, for example, the first thermocouple 220 does not generate an electromotive force or the open / close switch 121 is turned off when the open / close switch 121 is open. In addition, the open / close display unit 122 can be configured so that, for example, the first thermocouple 220 generates electromotive force and the open / close switch 121 is lit in a closed state.

  The setting unit 130 is configured such that the set value of the electromotive force of the second thermocouple 230 that closes the electromagnetic valve 241 of the instrument plug 240 by the second blocking unit 120 can be switched to a different value. In the example illustrated in FIG. 1, the setting unit 130 includes a dip switch. In the setting unit 130, the set value of the electromotive force of the second thermocouple 230 corresponding to the set temperature of the cooking utensil 250 is, for example, a plurality of second thermocouples 230 corresponding to a plurality of different set temperatures of the cooking utensil 250. Different electromotive force values can be set.

  More specifically, in the example illustrated in FIG. 1, the setting unit 130 is, for example, a second thermocouple corresponding to each set temperature when the set temperature of the cooking utensil 250 is 200 ° C., 250 ° C., and 300 ° C. The setting value of the 2nd interruption | blocking part 120 can be switched to the value of 230 electromotive force.

  As shown in FIG. 1, the setting part 130 has the setting display part 131 which displays the setting value of the electromotive force of the 2nd thermocouple 230 in which the 2nd interruption | blocking part 120 closes the solenoid valve 241 of the instrument plug 240, for example. May be. The setting display unit 131 can be configured by, for example, a plurality of LEDs (Light Emitting Diodes) provided in an electronic circuit that configures the setting unit 130 on the electronic circuit board 101. The setting display unit 131 is preferably an SMD (Surface Mount Device) type chip LED, for example. In the example shown in FIG. 1, the setting display unit 131 displays the set values of the second blocking unit 120 corresponding to the set temperatures when the set temperature of the cooking utensil 250 is 200 ° C., 250 ° C., and 300 ° C., for example. Three chip LEDs for display are provided.

  More specifically, in the setting display unit 131, for example, when the setting value is switched in the setting unit 130 and the setting value of the electromotive force corresponding to 200 ° C. is selected, the chip LED that displays the setting value is turned on. The chip LEDs that display other set values are configured to be turned off. Similarly, in the setting display unit 131, for example, when the setting value of the electromotive force corresponding to 250 ° C. or 300 ° C. is selected in the setting unit 130, the chip LED that displays the setting value lights up, and other settings The chip LED that displays the value is configured to be turned off.

  In the example illustrated in FIG. 1, the control device 100 includes a battery 150 that supplies power to the control device 100. As the battery 150 that supplies power to the control device 100, for example, a commercially available dry battery such as a single battery can be used. More specifically, as the battery 150, for example, a specification of 3.0V using about three to four single dry batteries in parallel can be exemplified. Note that the control device 100 may use a battery other than a dry battery, for example, or may insert an plug of a power cord into an outlet and supply external power via the power cord.

  The power control unit 140 is configured to control the supply of power to the electronic components on the electronic circuit board 101, for example. Specifically, the power control unit 140 is configured to supply power to the control device 100 when the first thermocouple 220 is heated by the flame F of the gas burner 210 to generate an electromotive force. . More specifically, as shown in FIG. 1, the power control unit 140 includes, for example, a start switch 141. The start switch 141 can be configured as an a contact, for example.

  For example, when the first thermocouple 220 is heated by the flame F of the gas burner 210 to generate an electromotive force, the power control unit 140 turns on the start switch 141 to supply power to the control device 100. In addition, the power control unit 140 turns off the start switch 141 when the first thermocouple 220 is not generating an electromotive force when the first thermocouple 220 is heated by the flame F of the gas burner 210, for example. The supply is interrupted, or the start switch 141 is turned on and off alternately in a predetermined cycle to suppress the power consumption of the control device 100. For example, when the electromotive force of the second thermocouple 230 is less than the set value, the power control unit 140 intermittently supplies power to the control device 100 so that the second cutoff unit 120 operates intermittently. You may comprise.

  As described above, the gas device 200 includes, for example, the cock 242 of the instrument plug 240 for igniting the gas burner 210 and the micro switch 243 provided on the cock 242. In this case, for example, the power control unit 140 may be configured to supply power when receiving a signal from the micro switch 243 that the cock 242 of the instrument plug 240 is opened. That is, the power control unit 140 is configured to turn on the activation switch 141 and supply power to the control device 100 when, for example, a signal indicating that the cock 242 of the instrument plug 240 is opened from the micro switch 243 is received. be able to.

  Hereinafter, the operation of the control device 100 according to the present embodiment will be described.

  FIG. 3 is a flowchart showing an example of operations of the first cutoff unit 110 and the power control unit 140 of the control device 100 shown in FIG. 4A and 4B are flowcharts illustrating an example of operations of the second cutoff unit 120 and the power control unit 140 of the control device 100 illustrated in FIG.

  As shown in FIG. 3, the 1st interruption | blocking part 110 of the control apparatus 100 determines whether the flame F containing a seed flame is ignited in the gas burner 210 of the gas apparatus 200 in step S101, for example. Specifically, if the gas burner 210 is ignited in step S101 (YES), the first thermocouple 220 is heated by the flame F of the gas burner 210, and the first thermocouple 220 generates a predetermined electromotive force. In step S102, the electromagnetic valve 241 of the instrument plug 240 is opened.

  On the other hand, if the gas burner 210 is not ignited in step S101 (NO), the first thermocouple 220 is not heated by the flame F of the gas burner 210, and the first thermocouple 220 does not generate a predetermined electromotive force. . Therefore, it progresses to step S103 and the solenoid valve 241 of the instrument plug 240 is closed. Then, it progresses to step S104 and the electric power control part 140 of the control apparatus 100 makes the control apparatus 100 a stop state by interrupting | blocking or suppressing supply of the electric power with respect to the control apparatus 100. FIG.

  In this way, when the gas burner 210 is not ignited, the power consumption of the control device 100 can be suppressed by putting the control device 100 in a stopped state. Therefore, when the control device 100 includes the battery 150 as a power supply source, the life of the battery 150 can be extended, and for example, a battery life of about 2 years can be ensured.

  In addition, as illustrated in FIG. 4A, the power control unit 140 of the control device 100 first determines whether or not the activation condition of the control device 100 is satisfied in step S201. Specifically, in step S201, for example, the power control unit 140 determines whether a signal indicating that the cock 242 of the instrument plug 240 has been opened is received from the micro switch 243 provided in the cock 242 of the instrument plug 240. judge.

  In step S201, when the cock 242 of the instrument plug 240 of the gas appliance 200 is in the fully closed position, the power control unit 140 does not receive the signal indicating that the cock 242 is opened, so the activation condition is not satisfied (NO). And the process proceeds to step S213. In step S213, the power control unit 140 maintains the stopped state of the control device 100 and ends the control. Thereby, supply of the electric power with respect to the control apparatus 100 is suppressed. At this time, the opening / closing switch 121 that is the contact a is opened and turned off, and the electromagnetic valve 241 of the instrument plug 240 of the gas appliance 200 is closed.

  Thus, until the cock 242 of the instrument plug 240 is opened, the power consumption of the control device 100 can be suppressed by shutting off or suppressing the supply of power to the control device 100 and setting the stop state. Thereby, when the control apparatus 100 is provided with the battery 150 as an electric power supply source, the lifetime of the battery 150 can be extended. For example, the power control unit 140 can start the control at a predetermined cycle after the end of the control, and perform step S201.

  When the cooker performs cooking by heating the cooking utensil 250 using the gas appliance 200 shown in FIG. 1, for example, the cooker ignites the pilot burner of the gas burner 210 in the following procedure. First, the knob of the cock 242 of the instrument plug 240 is pushed in to open the electromagnetic valve 241, and gas is supplied to the pilot burner of the gas burner 210. Next, the knob 242 is rotated while being pushed in, the cock 242 is rotated from the fully closed position to the pilot open position, and the pilot burner of the gas burner 210 is ignited.

  At this time, the power control unit 140 receives a signal indicating that the cock 242 of the instrument plug 240 is opened in step S201, determines that the activation condition is satisfied (YES), and proceeds to step S202. In step S202, the power control unit 140 supplies power to the control device 100 to start the control device 100, and proceeds to step S203. In step S203, the 2nd interruption | blocking part 120 measures the temperature of the cooking appliance 250 based on the electromotive force of the 2nd thermocouple 230, and progresses to step S204.

  In step S <b> 204, the second blocking unit 120 determines whether or not the electromotive force of the second thermocouple 230 corresponding to the temperature of the cooking utensil 250 is greater than or equal to a set value. If the electromotive force of the 2nd thermocouple 230 is less than a setting value, the 2nd interruption | blocking part 120 will determine with it not being more than a setting value (NO), and will progress to step S205. Moreover, if the 2nd interruption | blocking part 120 determines with the electromotive force of the 2nd thermocouple 230 according to the temperature of the cooking appliance 250 being more than a setting value (YES), it will progress to step S213.

  Here, in step S204, the second cutoff unit 120 determines that the electromotive force of the second thermocouple 230 is equal to or higher than a set value. For example, the cooking utensil 250 is already overheated, and the temperature of the cooking utensil 250 is This is the case when the temperature has already exceeded the set temperature. In this case, the process proceeds to step S213, and the power control unit 140 blocks or suppresses the supply of power to the control device 100, and puts the control device 100 in a stopped state.

  Thereby, the electromagnetic valve 241 of the appliance plug 240 remains closed, no gas is supplied to the gas burner 210, further overheating of the cooking appliance 250 is prevented, and the safety of the gas appliance 200 is ensured. Moreover, by making the control apparatus 100 into a stop state, power consumption can be suppressed and the lifetime of the battery 150 can be extended.

  As described above, when the second cutoff unit 120 determines in step S204 that the electromotive force of the second thermocouple 230 is not equal to or higher than the set value (NO), the process proceeds to step S205, and the open / close switch 121 that is, for example, a contact. Close and turn on. At this time, the cook manually opens the solenoid valve 241 of the appliance plug 240 and ignites the pilot burner of the gas burner 210 by pushing and turning the knob of the cock 242 of the appliance plug 240 as described above.

  Thereby, as shown in FIG. 3, the 1st interruption | blocking part 110 determines with the flame F containing the pilot flame of the pilot burner having been ignited in the gas burner 210 in step S101 (YES), and progresses to step S102. The electromagnetic valve 241 of the instrument plug 240 is opened. Specifically, the first circuit breaker 110 generates an electromotive force when the first thermocouple 220 is heated by the flame F of the gas burner 210, and the open / close switch 121 as the contact a is closed. A voltage is applied to the solenoid valve 241 via the electronic circuit 102 of 101.

  Thus, when the gas burner 210 is ignited, the process proceeds from step S101 to step S102. The first cutoff unit 110 applies a voltage generated by the electromotive force of the first thermocouple 220 heated by the flame F of the gas burner 210 to the electromagnetic valve 241 of the appliance plug 240 and opens the electromagnetic valve 241. As a result, even if the cook releases the state where the cock 242 of the appliance plug 240 is pushed, the gas is supplied to the pilot burner of the gas burner 210 via the electromagnetic valve 241 and the fire is prevented from disappearing.

  On the other hand, when the flame F including the seed flame of the gas burner 210 disappears for some reason, the process proceeds from step S101 to step S103. The 1st interruption | blocking part 110 closes the solenoid valve 241 by losing the electromotive force when the 1st thermocouple 220 was heated by the flame F in step S103. Thereby, the supply of gas to the gas burner 210 is cut off, and the gas is prevented from being supplied to the gas burner 210 in a state where the flame F is extinguished, and the safety when the gas device 200 is turned off is ensured.

  Then, it progresses to step S104 and the control apparatus 100 interrupts | blocks or suppresses the electric power supplied to the control apparatus 100 by the electric power control part 140, and complete | finishes control. Thereby, the power consumption of the control apparatus 100 can be suppressed. In particular, when the control device 100 includes the battery 150 as a power supply source, the life of the battery 150 can be extended.

  As described above, in step S205, the second blocking unit 120 closes and turns on the open / close switch 121 that is the contact a, and then proceeds to step S206. As described above, when the pilot burner of the gas burner 210 is ignited, the process proceeds from step S101 shown in FIG. 3 to step S102, and the first shut-off unit 110 opens the electromagnetic valve 241 of the instrument plug 240. .

  In this state, for example, the cook rotates the knob of the cock 242 of the appliance plug 240 from the pilot open position to the small fire position or the fully open position. Then, gas is supplied to the main burner of the gas burner 210, the main burner is ignited by the pilot flame of the pilot burner, the cooking utensil 250 is heated by the flame F of the gas burner 210, and heating cooking becomes possible.

  In step S206, the 2nd interruption | blocking part 120 of the control apparatus 100 measures the temperature of the cooking appliance 250 based on the electromotive force of the 2nd thermocouple 230, and progresses to step S207.

  In step S207, the second blocking unit 120 determines whether or not the electromotive force of the second thermocouple 230 corresponding to the temperature of the cooking utensil 250 is equal to or higher than a set value. If the 2nd interruption | blocking part 120 determines with the electromotive force of the 2nd thermocouple 230 not being more than a setting value (NO), it will progress to step S208.

  Moreover, if the 2nd interruption | blocking part 120 determines with the electromotive force of the 2nd thermocouple 230 according to the temperature of the cooking appliance 250 being more than a setting value in step S207 (YES), it will progress to step S212. In this way, the electromotive force of the second thermocouple 230 becomes equal to or higher than the set value when the temperature of the cooking utensil 250 is equal to or higher than a preset temperature due to, for example, empty cooking of the cooking utensil 250.

  In step S212, the 2nd interruption | blocking part 120 closes the solenoid valve 241 of the instrument plug 240, for example by opening and closing the opening / closing switch 121 which is a contact, and progresses to step S213. Thereby, the supply of gas to the gas burner 210 is shut off, the flame F of the gas burner 210 including the pilot flame of the pilot burner disappears, the overheating of the cooking utensil 250 is prevented, and the safety of the gas appliance 200 is ensured.

  In step S213, the power control unit 140 of the control device 100 interrupts or suppresses the supply of power to the control device 100, for example, and ends the control. Thereby, the power consumption of the control apparatus 100 can be suppressed. In particular, when the control device 100 includes the battery 150 as a power supply source, the life of the battery 150 can be extended.

  Here, the control apparatus 100 of this embodiment is provided with the setting part 130 which can switch the setting value of the 2nd interruption | blocking part 120 to a different value. Therefore, the setting unit 130 can easily change the set value of the electromotive force of the second thermocouple 230 in which the second blocking unit 120 closes the appliance plug 240, and the cooking utensil when the flame F of the gas burner 210 is extinguished. The set temperature of 250 can be easily changed.

  Thereby, for example, even when the material of the cooking utensil 250 is changed to a material having a different allowable temperature, such as copper, aluminum, cast iron, stainless steel, etc., the setting unit 130 switches the set value to thereby change the material of the cooking utensil 250. The flame F of the gas burner 210 can be extinguished at a temperature lower than the allowable temperature of the cooking utensil 250 depending on the temperature. Therefore, the safety of the gas appliance 200 can be further improved, and damage to the cooking utensil 250 can be more reliably prevented.

  Moreover, in the control apparatus 100 of this embodiment, the setting part 130 is comprised by the dip switch, for example. The dip switch is a small switch mounted on the electronic circuit board 101 of the control device 100 and used for various settings of the electronic device. By configuring the setting unit 130 with a dip switch, the setting value of the electromotive force of the second thermocouple 230 can be easily changed in the setting unit 130, and the setting value can be easily confirmed visually. The set value of the temperature of the cooking utensil 250 having a correlation with the electromotive force of the thermocouple 230 can be easily changed.

  Moreover, in the control apparatus 100 of this embodiment, the setting part 130 has the setting display part 131 which displays the setting value of an electromotive force, for example. Thereby, in the setting part 130, the setting value of the electromotive force of the 2nd thermocouple 230, ie, the setting value of the temperature of the cooking appliance 250 which has a correlation with the electromotive force of the 2nd thermocouple 230, becomes clear at a glance. Therefore, the setting unit 130 can perform the setting suitable for the cooking utensil 250 more reliably, and the temperature of the cooking utensil 250 rises above the allowable temperature or the temperature of the cooking utensil 250 is lower than the allowable temperature. It is possible to prevent the instrument plug 240 from being closed.

  In step S207, as described above, when the second cutoff unit 120 of the control device 100 determines that the electromotive force of the second thermocouple 230 is not equal to or higher than the set value (NO), the process proceeds to step S208. In step 208, the 2nd interruption | blocking part 120 stores the temperature of the cooking appliance 250 measured by step S206 as temperature data in a memory | storage part, and progresses to step S209. In step S209, the second blocking unit 120 determines whether or not the temperature measurement in step S206 has been performed a predetermined number of times, for example, n times (n is an integer of 2 or more).

  In step S209, when it is determined by the second blocking unit 120 that the temperature of the cooking utensil 250 has not been measured, for example, n times (NO), the process returns to step S206, and the temperature of the cooking utensil 250 is measured again. . If it is determined in step S209 that the temperature of cooking utensil 250 has been measured, for example, n times (YES) by second blocking unit 120, the process proceeds to step S210.

  In step S210, the 2nd interruption | blocking part 120 calculates the temperature increase rate of the cooking utensil 250, for example based on the temperature of the cooking utensil 250 measured n times with the predetermined period, and progresses to step S211. In step S211, the 2nd interruption | blocking part 120 determines whether the temperature increase rate of the cooking utensil 250 calculated by step S210 is more than the preset value of the temperature increasing rate of the cooking utensil 250 set beforehand, for example. To do. The set value of the temperature increase rate of the cooking utensil 250 is, for example, a temperature increase rate such that the temperature of the last measured cooking utensil 250 exceeds the set temperature within a period equal to the period for measuring the temperature of the cooking utensil 250. Value can be set.

  In step S211, if it is determined by the second blocking unit 120 that the calculated temperature rise rate of the cooking utensil 250 is not equal to or higher than the set value (NO), the number of times the temperature of the cooking utensil 250 is measured is reset, and step S206 is performed. The temperature of the cooking utensil 250 is measured again. On the other hand, if it is determined in step S211 that the calculated temperature rise rate of the cooking utensil 250 is equal to or greater than the set value (YES), the process proceeds to step S212. Thus, the temperature increase rate of the cooking utensil 250 becomes equal to or higher than the set value when, for example, the temperature of the cooking utensil 250 is abruptly increased due to empty cooking of the cooking utensil 250 or the like.

  Therefore, in step S212, the 2nd interruption | blocking part 120 closes the electromagnetic valve 241 of the instrument plug 240, for example by opening and closing the opening / closing switch 121 which is a contact, and progresses to step S213. Thereby, supply of the gas with respect to the gas burner 210 is interrupted | blocked, the flame F of the gas burner 210 disappears, the overheating of the cooking utensil 250 is prevented, and the safety | security of the gas apparatus 200 is ensured.

  In step S213, the power control unit 140 interrupts or suppresses the supply of power to the control device 100, for example, and ends the control. Thereby, the power consumption of the control apparatus 100 can be suppressed. In particular, when the control device 100 includes the battery 150 as a power supply source, the life of the battery 150 can be extended.

  Further, as described above, for example, when the electromotive force of the second thermocouple 230 is less than the set value, the power control unit 140 intermittently supplies power to the control device 100 and performs the second cutoff. The unit 120 may be configured to operate intermittently. In this case, the power consumption of the control device 100 can be further suppressed. Specifically, when the temperature of cooking utensil 250 measured in step S206 is equal to or lower than a predetermined temperature, power control unit 140 can cut off or suppress the supply of power to control device 100 for a predetermined time.

  The predetermined time during which the power control unit 140 interrupts or suppresses the supply of power to the control device 100 is, for example, when the temperature of the cooking utensil 250 changes from the predetermined temperature to the electromotive force of the second thermocouple 230 in the second cutoff unit 120. It can be determined based on the time to rise to the set temperature corresponding to the set value. For example, in the gas appliance 200, when the temperature of the cooking utensil 250 is 150 ° C., it is assumed that it takes 60 seconds or more for the cooking utensil 250 to be emptied and the temperature to rise to the set temperature of 250 ° C.

  In this case, when the temperature of the cooking utensil 250 measured in step S206 is equal to or lower than 150 ° C., which is the predetermined temperature, the power control unit 140 lowers the CPU operation rate by a function such as a power saving mode and the like in a predetermined time. Steps S206 to S211 can be performed once every 60 seconds or in a cycle of n times. Thereby, while preventing the cooking utensil 250 from being overheated over the set temperature, the power is intermittently supplied to the control device 100, and the second shut-off unit 120 is operated intermittently. 100 power consumption can be suppressed. In particular, when the control device 100 includes the battery 150 as a power supply source, the life of the battery 150 can be extended.

  Further, as described above, it is assumed that the opening / closing switch 121 as the contact a is closed in step S205, and the electromagnetic valve 241 of the instrument plug 240 is opened in steps S101 and S102. In this state, when the main burner of the gas burner 210 of the gas utensil is ignited and the cooking utensil 250 is heated, for example, it is assumed that the flame F of the gas burner 210 is extinguished due to spilling from the cooking utensil 250. Then, the first thermocouple 220 does not generate an electromotive force when it is heated by the flame F of the gas burner 210.

  Then, as described above, the first cutoff unit 110 determines that the flame F is not ignited in the gas burner 210 in step S101 shown in FIG. 3 (NO), and proceeds to step S103 to close the electromagnetic valve 241. Thereby, for example, even when the flame F of the gas burner 210 is extinguished due to spilling from the cooking utensil 250, the electromagnetic valve 241 of the appliance plug 240 is closed by the first blocking unit 110, and the safety when the gas appliance 200 is extinguished. Is secured. In step S104, the power control unit 140 causes the control device 100 to be in a stopped state, thereby suppressing power consumption of the control device 100 and extending the life of the battery 150.

  In addition, the control device 100 of the present embodiment includes a battery 150 that supplies power to each unit of the control device 100. Thereby, the control apparatus 100 becomes unnecessary [the supply of the electric power from the outside], and can improve the freedom degree of the layout of the gas equipment 200. In addition, the control device 100 can be used even when the supply of electric power from the outside is stopped during a disaster or the like. Further, by controlling the power supplied from the battery 150 to each part of the control device 100 by the power control unit 140, the power consumption of the control device 100 is suppressed and consumption of the battery 150 is suppressed. Can be used for a long time.

(Embodiment of gas equipment)
Finally, an example of an embodiment of a gas device according to the present invention will be described.

  FIG. 5 is a schematic front view showing a commercial rotary hook 300 which is an example of the gas equipment according to the embodiment of the present invention.

  The gas appliance according to the present embodiment is, for example, a commercial rotary kettle 300 that includes a kettle 350 as a cooking utensil and is used in school lunches, employee cafeterias, cooking facilities of sugar beet manufacturers, and the like.

  The commercial rotary hook 300 includes the control device 100 according to the above-described embodiment. Similarly to the example of the configuration of the gas device 200 described above, the commercial rotary pot 300 includes a gas burner 310 that heats the pot 350, a first thermocouple 320 that generates heat by being heated by the flame of the gas burner 310, A second thermocouple 330 that generates an electromotive force according to the temperature of the kettle 350 and an instrument plug 340 that opens and closes a flow path 360 that supplies gas to the gas burner 310 are provided.

  A hook 350 of the commercial rotary hook 300 has an inner wall 351 heated by the flame of the gas burner 310 and an outer wall 353 to which a hollow rotary shaft 352 is fixed. The shuttle 350 is configured such that the rotation shaft 352 rotates and tilts by rotating the operation handle 370. In addition, the commercial rotary hook 300 includes a lid 380 that closes the opening 354 of the hook 350. The lid 380 is pivotally supported by a mount 390 that supports a rotating shaft 352, and is provided so that the opening 354 of the shuttle 350 can be opened and closed by rotation around the shaft 391.

  The control device 100 is fixed to an operation panel 355 provided on the outer wall 353 of the shuttle 350, for example. The operation panel 355 is provided with a knob 341 for operating the cock of the instrument plug 340, for example. The first thermocouple 320 is disposed in the vicinity of the gas burner 310, and the second thermocouple 330 is inserted inside the outer wall 353 of the kettle 350 through the hollow rotating shaft 352 and is in contact with the inner wall 351.

  The commercial rotary hook 300, which is a gas device according to the present embodiment, includes the control device 100 according to the above-described embodiment. Therefore, the commercial rotary pot 300 can prevent overheating of the pot 350 which is a cooking utensil by the control device 100 as described above, and can easily change the temperature setting for preventing overheating of the pot 350. The power consumption of the device 100 can be reduced.

  The second thermocouple 330 is inserted inside the outer wall 353 of the hook 350 through the hollow rotating shaft 352 and is in contact with the inner wall 351 of the hook 350. Therefore, it becomes possible to directly measure the temperature of the inner wall 351 of the hook 350 that is heated by the flame of the gas burner 310 and has the highest temperature. Therefore, the safety of the commercial rotary hook 300 can be improved without opening extra holes or the like in the outer wall 353 of the hook 350.

  The embodiment of the present invention has been described in detail with reference to the drawings, but the specific configuration is not limited to this embodiment, and there are design changes and the like without departing from the gist of the present invention. They are also included in the present invention.

DESCRIPTION OF SYMBOLS 100 Control apparatus, 102 Electronic circuit, 110 1st interruption | blocking part, 120 2nd interruption | blocking part, 121 Open / close switch, 122 Open / close display part, 130 Setting part (dip switch), 131 Setting display part, 140 Power control part, 150 Battery, 200 Gas appliance, 210 Gas burner, 220 1st thermocouple, 230 2nd thermocouple, 240 appliance plug, 243 microswitch, 250 cooking appliance, 260 flow path, 300 Commercial rotary kettle (gas appliance), 310 Gas burner, 320 1st 1 thermocouple, 330 2nd thermocouple, 360 flow path, 340 utensil stopper, 350 pot (cooking utensil), 351 inner wall, 352 rotating shaft, 353 outer wall, F flame

Claims (10)

A gas burner that heats the cooking utensil, a first thermocouple that generates an electromotive force when heated by the flame of the gas burner, a second thermocouple that generates an electromotive force according to the temperature of the cooking utensil, and supplies gas to the gas burner A control device for a gas appliance having an instrument plug for opening and closing a flow path,
A first shut-off portion that closes the appliance plug when the first thermocouple does not generate the electromotive force;
A second shut-off portion that closes the appliance plug when the electromotive force of the second thermocouple is equal to or higher than a set value;
A setting unit capable of switching the setting value of the second blocking unit to a different value;
A power control unit that controls supply of power to the control device,
The power control unit supplies the power when the first thermocouple generates the electromotive force.   When the electromotive force of the second thermocouple is less than the set value, the power control unit intermittently supplies the power and operates the second cutoff unit intermittently. The control device according to claim 1.   3. The control device according to claim 1, wherein the power control unit supplies the power when receiving a signal indicating that the instrument plug is opened from a micro switch provided in the instrument plug. 4. .   The second shut-off unit calculates a temperature increase rate of the cooking utensil based on an electromotive force of the second thermocouple, and closes the appliance plug when the temperature increase rate is equal to or higher than a set value. The control apparatus as described in any one of Claims 1-3.   The control device according to claim 1, further comprising a battery that supplies the electric power.   The control device according to any one of claims 1 to 5, wherein the setting unit includes a dip switch.   The said setting part has a setting display part which displays the setting value of the said electromotive force, The control apparatus as described in any one of Claims 1-6 characterized by the above-mentioned. The first blocking part has an electronic circuit for opening and closing the instrument plug,
The said 2nd interruption | blocking part has an open / close switch provided in the said electronic circuit, and the open / close display part which displays the open / closed state of this open / close switch, It is any one of Claim 1 to 7 characterized by the above-mentioned. The control device described.   The control device according to any one of claims 1 to 8, a gas burner that heats the cooking utensil, a first thermocouple that is heated by a flame of the gas burner to generate an electromotive force, and a temperature of the cooking utensil A gas device comprising: a second thermocouple that generates an electromotive force in accordance with the gas and a device plug that opens and closes a flow path for supplying gas to the gas burner. A cooking pot is provided as the cooking utensil,
The hook has an inner wall heated by the flame of the gas burner and an outer wall to which a hollow rotating shaft is fixed,
The gas apparatus according to claim 9, wherein the second thermocouple is inserted into the outer wall through the rotating shaft and is in contact with the inner wall.

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