Battery powered cooking stove

Abstract

To provide a battery powered cooking stove capable of preventing operation of an electric load from being damaged due to execution of radio communication.SOLUTION: A battery powered cooking stove includes a radio communication part 3, an electric load, a controller 21, a power supply on-off circuit 22, and a power supply switch 5. The controller 21 prohibits radio communication to the radio communication part 3 when the power supply switch 5 switches the power supply on-off circuit 22 to a power supply possible state, transmits cooking stove operation information to the radio communication part 3 at prescribed timing, and permits radio communication to the radio communication part 3 when the electric load is in an inoperative state after the electric load is operated. The radio communication part 3 transmits the cooking stove operation information to an external device by the radio communication when the radio communication is permitted, and notifies the controller 21 that the radio communication ends after transmission completion, and the controller 21 switches the power supply on-off circuit 22 to a power supply impossible state when notification that the radio communication ends is received.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a battery-powered cooker having a wireless communication function.

Background Art

[0002] Conventionally, there has been a battery-powered cooker powered by a battery and having a wireless communication function (see, for example, Patent Documents 1 and 2).

[0003] For example, Patent Document 1 describes a gas cooker provided with a wireless communication unit for transmitting usage information of a cooker main body to a portable terminal of an external monitor via a gas leak alarm, a gas meter, etc. Further, Patent Document 2 describes a heating cooker provided with a communication unit for performing short-range wireless communication with a communication terminal device owned by a user.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, since wireless communication has a large current consumption during transmission and reception, in a battery-powered cooker, if the timing of the operation of an electrical load such as a valve provided in the fuel system during operation of the cooker overlaps with the timing of wireless communication, the battery voltage may temporarily fall below the minimum driving voltage of the electrical load, and there is a problem that the electrical load may not operate normally.

[0006] The present invention has been made to solve the above problems, and an object thereof is to provide a battery-powered cooker capable of preventing the operation of an electrical load from being impaired by the implementation of wireless communication.

Means for Solving the Problem

[0007] In order to achieve the above object, a battery-driven stove according to an aspect of the present invention is a battery-driven stove driven by a battery, and includes a wireless communication unit for performing wireless communication with an external device, a plurality of electrical loads contributing to the operation of the stove, a control unit configured to control the electrical loads and communicate with the wireless communication unit, a power supply availability switching circuit provided in a power supply path from the battery to the wireless communication unit, the electrical loads, and the control unit, and configured to switch between a power supply available state that enables power supply from the battery and a power supply unavailable state that disables power supply, and a power supply start operation unit that is operated by a user to switch the power supply availability switching circuit to the power supply available state and start power supply from the battery. The control unit prohibits wireless communication with the wireless communication unit when the power supply start operation unit is operated by the user and the power supply availability switching circuit is switched to the power supply available state, transmits stove operation information regarding the operation of the stove to the wireless communication unit at a predetermined timing when the power supply availability switching circuit is in the power supply available state, permits wireless communication with the wireless communication unit when the electrical load becomes in a non-operating state after operating the electrical load, and the wireless communication unit transmits the stove operation information to the external device by wireless communication when permitted wireless communication from the control unit, and notifies the control unit that the wireless communication has ended when this transmission ends. The control unit switches the power supply availability switching circuit to the power supply unavailable state when receiving a notification from the wireless communication unit that the wireless communication has ended.

[0008] According to this configuration, the control unit permits wireless communication with the wireless communication unit when the electrical load becomes in a non-operating state after operating the electrical load, and the wireless communication unit transmits the stove operation information to the external device by wireless communication when permitted wireless communication from the control unit. Therefore, it is possible to avoid a decrease in the battery voltage due to the overlap between the operation timing of the electrical load and the implementation timing of the wireless communication, and prevent the operation of the electrical load from being impaired by the implementation of the wireless communication.

[0009] Comprising one or more burners, the electric load is electrically driven and includes a valve related to the combustion of the burner, and the control unit may permit wireless communication with the wireless communication unit when all the burners are in the extinguished state after the burner is ignited.

[0010] According to this configuration, wireless communication is performed when all the burners are in the extinguished state. When all the burners are in the extinguished state, for example, it is not necessary to operate a flow control valve or the like that adjusts the fuel supply amount to the burner, and the valve related to the combustion of the burner does not need to be operated. Therefore, it is suitable for performing wireless communication, and wireless communication can be implemented without impairing the operation of the electric load.

[0011] After the control unit permits wireless communication with the wireless communication unit, if the control unit operates the electric load before receiving a notification from the wireless communication unit that the wireless communication has ended, the control unit prohibits wireless communication with the wireless communication unit, and when the wireless communication unit is prohibited from wireless communication by the control unit during wireless communication with the external device, the wireless communication unit may interrupt the wireless communication.

[0012] According to this configuration, when the wireless communication unit is performing wireless communication with an external device and the electric load is to be operated, the control unit prohibits wireless communication and interrupts the wireless communication. Therefore, it is possible to prevent the operation of the electric load from being impaired by the implementation of wireless communication.

[0013] The wireless communication unit includes a non-volatile memory that updates and stores the date and time when wireless communication was performed with the external device. When permitted wireless communication by the control unit, the wireless communication unit calculates the elapsed time from the date and time stored in the non-volatile memory until the wireless communication is permitted. If this elapsed time is less than the reference time, the wireless communication unit may notify the control unit that the wireless communication has ended without performing wireless communication.

[0014] According to this configuration, the frequency of wireless communication by the wireless communication unit can be reduced, so that the battery consumption due to wireless communication can be reduced and the battery life can be extended.

Advantages of the Invention

[0015] The present invention has the configuration described above, and has the effect of being able to provide a battery-powered cooker that can prevent the operation of the electrical load from being impaired by the implementation of wireless communication.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Embodiments for Carrying Out the Invention

[0017] Hereinafter, preferred embodiments will be described with reference to the drawings. In the following, the same or corresponding elements may be denoted by the same reference numerals throughout all the drawings, and the redundant description thereof may be omitted. Further, the present invention is not limited to the following embodiments.

[0018] (Embodiment) FIG. 1 is a schematic diagram showing a schematic configuration of an example of a battery-powered cooker according to the present embodiment. The battery-powered cooker 1 shown in FIG. 1 is driven by a battery 4 and includes a control board 2, a wireless communication unit 3, an operation unit 10 including a power switch 5, an electric load group B composed of a plurality of electric loads, and the like.

[0019] The control board 2 is provided with a cooker controller 21, a power on / off circuit 22, and a drive circuit group A composed of a plurality of drive circuits for driving each electrical load of the electrical load group B.

[0020] The power on / off circuit 22 is provided in the power supply path from the battery 4 and is a circuit that can switch between a power-on state (power supply possible state) that enables power supply from the battery 4 to the cooker controller 21, the communication controller 31, etc., and a power-off state (power supply impossible state) that disables power supply, and is a power supply availability switching circuit. Also, the power of the battery 4 is supplied to the electrical loads to be operated among the electrical load group B via the corresponding drive circuits when the power on / off circuit 22 is in the power-on state. Further, the power switch 5 of the operation unit 10 is an operation switch for starting the battery-driven cooker 1 and is a power supply start operation unit. When the power on / off circuit 22 is in the power-off state, the user can operate the power switch 5 to turn on the power on / off circuit 22. Also, when the power on / off circuit 22 is in the power-on state, the power on / off circuit 22 can be switched to the power-off state under the control of the cooker controller 21.

[0021] Figure 2 is a diagram showing an example of the power on / off circuit 22. In Figure 2, switch SW1 corresponds to the power switch 5. When the user presses the power switch 5, switch SW1 turns on (conducts), and when the user releases the power switch 5, switch SW1 turns off (non-conducts). When the user presses the power switch 5 and switch SW1 in Figure 2 turns on, transistor Q2 turns on, transistor Q1 turns on, and the power-on state is entered. As a result, the power of the battery 4 is supplied to the cooker controller 21 and the communication controller 31. When the power supply starts, the cooker controller 21 turns on transistor Q3. When the user releases the power switch 5, switch SW1 turns off and transistor Q2 turns off. However, since transistor Q3 is on, the on state of transistor Q1 continues, and the power supply from the battery 4 continues. When the cooker controller 21 turns off transistor Q3 while the power supply from the battery 4 is continuing, transistor Q1 turns off, the power-off state is entered, and the power supply from the battery 4 stops.

[0022] In addition, the operation unit 10 is provided with ignition and fire extinguishing buttons 6 to 9, which will be described later, and operation signals generated by user operations of the ignition and fire extinguishing buttons 6 to 9 are input to the cooker controller 21.

[0023] The cooker controller 21 includes a microcontroller composed of a CPU, a ROM, a RAM, etc., and a memory for storing control programs, etc. The controller 21 controls each electrical load included in the electrical load group B according to the control program stored in the memory.

[0024] The wireless communication unit 3 includes a wireless communication board 3a having a communication controller 31 and a non-volatile memory 32, and an antenna 3b for wireless communication. The communication controller 31 includes a microcontroller composed of a CPU, ROM, RAM, etc., and a memory (internal memory) for storing control programs, etc. The communication controller 31 operates according to the control program stored in the internal memory, can perform wired communication with the conro controller 21, can perform wireless communication with the wireless base station 40 via the antenna 3b, and can perform wireless communication with the management server 41, which is an external device, via the wireless base station 40 and the Internet (not shown). The non-volatile memory 32 stores the date and time (wireless communication date and time) when the communication controller 31 performs wireless communication with the management server 41. The wireless communication by the communication controller 31 uses, for example, a LPWA (Low Power Wide Area) communication method.

[0025] Figure 3 is a diagram showing an example of the configuration of the fuel system of the battery-driven conro 1. Further, Figure 4 is a circuit block diagram of the battery-driven conro 1 corresponding to Figure 3.

[0026] Here, as an example of a battery-powered stove 1, a stove in which three gas burners (stove burners 11 to 13) are arranged on the top plate of the stove body, a grill section is arranged in the central portion inside the stove body, a gas burner (lower grill burner 15) is provided at the lower part inside the grill section, and a planar gas burner (upper grill burner 14) is provided at the upper part inside the grill section, like a general combustion heating stove, for example, will be described. Also, a grill door is arranged at the center of the front surface of the stove body, and an operation unit 10 is arranged on the left and right of the grill door on the front surface of the stove body. The operation unit 10 is provided with a power switch 5, ignition and extinguishing buttons 6 to 8 for performing ignition, extinguishing, and flame adjustment for each of the stove burners 11 to 13, an ignition and extinguishing button 9 for performing ignition, extinguishing, and flame adjustment for the grill burners 14 and 15, and the like. Here, by operating the ignition and extinguishing buttons 6 to 9, ignition and extinguishing of the corresponding burner can be performed, and by rotating the ignition and extinguishing buttons 6 to 9, flame adjustment can be performed. Note that the ignition and extinguishing buttons 6 to 9 may only perform ignition and extinguishing operations, and a flame adjustment operation unit for performing flame adjustment may be provided separately from the ignition and extinguishing buttons.

[0027] As shown in FIG. 3, a main gas solenoid valve 51 for controlling the conduction and interruption of gas is provided in a pipe P10 to which city gas or the like is supplied as fuel for each of the burners 11 to 15. Downstream of the main gas solenoid valve 51, it branches into four pipes P11 to P14. Safety valves 61 to 63 each consisting of a solenoid valve for controlling the conduction and interruption of gas are provided in the pipes P11 to P13, and flow rate control valves 71 to 73 each consisting of an electric valve driven by a stepping motor are provided downstream of the safety valves 61 to 63 and are connected to the cooktop burners 11 to 13. Further, a safety valve 64 consisting of a solenoid valve for controlling the conduction and interruption of gas is provided in the pipe P14, a flow rate control valve 74 consisting of an electric valve driven by a stepping motor is provided downstream of the safety valve 64, and downstream of the flow rate control valve 74, it branches into two pipes P141 and P142. A shut-off solenoid valve 75 for blocking the flow of gas is provided in the pipe P141, and the upper grill burner 14 is connected thereto. Also, the lower grill burner 15 is connected to the pipe P142. Further, in the vicinity of each of the burners 11 to 15, igniters 111 to 115 for igniting each of the burners 11 to 15 and thermocouples 121 to 125 for detecting that each of the burners 11 to 15 has been ignited are provided. The main gas solenoid valve 51, the safety valves 61 to 64, the flow rate control valves 71 to 74, and the shut-off solenoid valve 75 are valves driven by electricity provided in the fuel system of the burners 11 to 15 and are valves related to the combustion of the burners 11 to 15. In this case, the valves related to the combustion of the burners 11 to 15 that become an electrical load are the solenoid valves (51, 61 to 64, 75) and the electric valves (71 to 74).

[0028] When the main gas solenoid valve 51, the safety valves 61 to 64, and the shut-off solenoid valve 75 are opened, gas is supplied to each of the burners 11 to 15. By adjusting the opening degree of the flow rate control valves 71 to 73 by a stepping motor, the flow rate of the gas supplied to the cooktop burners 11 to 13 is adjusted. Also, by adjusting the opening degree of the flow rate control valve 74 by a stepping motor, the flow rate of the gas supplied to the grill burners 14 and 15 is adjusted. When only the lower grill burner 15 is used in the grill section, the shut-off solenoid valve 75 is closed. In this way, the combustion operation of each of the burners 11 to 15 is performed.

[0029] Also, as shown in FIG. 4, the battery-powered stove 1 includes an ignition circuit 201 that drives each of the igniters 111 to 115, a main gas valve circuit 202 that opens and closes the main gas solenoid valve 51, a shut-off valve circuit 203 that opens and closes the shut-off solenoid valve 75, a safety valve circuit 204 that opens and closes the safety valves 61 to 64, a flow rate control valve circuit 205 that drives the stepping motors of the flow rate control valves 71 to 74, and a thermocouple circuit 206. The ignition circuit 201, the main gas valve circuit 202, the shut-off valve circuit 203, the safety valve circuit 204, and the flow rate control valve circuit 205 drive the igniters 111 to 115, the main gas solenoid valve 51, the shut-off solenoid valve 75, the safety valves 61 to 64, and the flow rate control valves 71 to 74, respectively, in response to control from the stove controller 21. Here, the ignition circuit 201, the main gas valve circuit 202, the shut-off valve circuit 203, the safety valve circuit 204, and the flow rate control valve circuit 205 are the drive circuit group A in FIG. 1, and the igniters 111 to 115, the main gas solenoid valve 51, the shut-off solenoid valve 75, the safety valves 61 to 64, and the flow rate control valves 71 to 74 are the electrical load group B in FIG. 1. Further, the thermocouple circuit 206 transmits the ignition detection signals of the burners 11 to 15 by the thermocouples 121 to 125 to the stove controller 21. Note that even in the case of a battery-powered stove, there are some stoves with different configurations. For example, although electric valves driven by stepping motors are used here as the flow rate control valves 71 to 74, a configuration using a latch-type solenoid valve (electrical load) or the like may also be used. In this case, all the valves (51, 61 to 64, 71 to 75) related to the combustion of the burners 11 to 15 that serve as electrical loads are solenoid valves.

[0030] When the user uses this battery-powered stove 1, first, the user presses the power switch 5. Then, when operating any of the burners 11 - 15, the user presses the ignition / extinguishing button 6 - 9 of the burner to be operated. As a result, the main gas solenoid valve 51 is opened by the main gas valve circuit 202, and further, the safety valves 61 - 64 corresponding to the burner to be operated are opened by the safety valve circuit 204. When the upper grill burner 14 is included in the burner to be operated, the shut-off solenoid valve 75 is opened by the shut-off valve circuit 203. Next, the igniters 111 - 115 are driven by the ignition circuit 201, and ignition occurs in the burner to be operated. When the ignition of the burner to be operated is detected by the thermocouple circuit 206, the ignition operation ends. Further, the stepping motor of the flow control valves 71 - 74 corresponding to the burner to be operated is driven by the flow control valve circuit 205 so that the gas flow rate becomes the gas flow rate corresponding to the rotation amount of the ignition / extinguishing button 6 - 9 of the burner to be operated, and the gas flow rate is adjusted. In this way, the combustion operation is performed in the burner to be operated.

[0031] Next, an example of the operation of the battery-powered stove 1 will be described. FIG. 5 is a diagram showing an example of the operation of the stove controller 21 and the communication controller 31 of the battery-powered stove 1.

[0032] First, when the user operates the power switch 5 to start the battery-powered stove 1, the power on / off circuit 22 becomes the power-on state, and the power supply from the battery 4 to the stove controller 21 and the communication controller 31 is started.

[0033] When the power supply from the battery 4 is started, the stove controller 21 transmits a wireless communication prohibition signal to the communication controller 31 (step S1). When the communication controller 31 receives the wireless communication prohibition signal (step S2), it does not perform wireless communication with the wireless base station 40 until it receives a wireless communication permission signal from the stove controller 21.

[0034] When the user uses any of the burners 11 to 15 of the battery-powered stove 1, the stove controller 21 transmits stove operation information to the communication controller 31 at a predetermined timing (step S3). When the communication controller 31 receives the stove operation information (step S4), it stores the stove operation information in, for example, an internal memory. The stove operation information is information indicating, for example, the combustion time or integrated combustion time for each of the burners 11 to 15, the number of ignition (lighting) times, error history, and the like. The stove controller 21 may transmit the stove operation information periodically, or may transmit the stove operation information about a burner when a certain burner during combustion enters the extinguished state.

[0035] Then, the stove controller 21 determines whether or not all of the burners 11 to 15 are in the extinguished state (step S5). If all of the burners 11 to 15 are in the extinguished state, a wireless communication permission signal is transmitted to the communication controller 31 (step S6). Here, when all of the burners 11 to 15 are in the extinguished state, all of the electrical loads in the electrical load group B are in a non-operating state. Note that the electrical load group B here is an electrical load related to the combustion of the burners 11 to 15 and contributing to the heating operation of the stove, and an electrical load that does not substantially contribute to the heating operation of the stove, for example, a display unit (not shown) is not included in the electrical load group B.

[0036] Also, until all of the burners 11 to 15 are in the extinguished state, every time the timing for transmitting the stove operation information arrives, the stove controller 21 transmits the stove operation information to the communication controller 31 (step S3). Every time the communication controller 31 receives the stove operation information (step S4), it stores the stove operation information in the internal memory.

[0037] When the communication controller 31 receives a wireless communication permission signal from the stove controller 21 (step S7), it inquires the wireless base station 40 about the current date and time, obtains the current date and time from the wireless base station 40, calculates the elapsed time from the wireless communication date and time stored in the non-volatile memory 32 to the current date and time, and determines whether or not this elapsed time is equal to or greater than a reference time (for example, 24 hours) (step S8).

[0038] When the elapsed time is equal to or longer than the reference time in step S8 (Yes in step S8), the communication controller 31 transmits the CONRO operation information stored in the internal memory to the management server 41 via the radio base station 40 or the like (step S9). Here, the communication controller 31 deletes the CONRO operation information that has been transmitted to the management server 41 from the internal memory. The management server 41 stores the received CONRO operation information.

[0039] When the transmission of the CONRO operation information is completed, the communication controller 31 updates the wireless communication date and time stored in the nonvolatile memory 32 to the transmission completion date and time (step S10), and transmits a wireless communication termination signal to the CONRO controller 21 (step S11). Note that the wireless communication date and time after the update of the nonvolatile memory 32 in step S10 may use the current date and time acquired from the aforementioned radio base station 40.

[0040] When the elapsed time is less than the reference time in step S8 (No in step S8), the communication controller 31 transmits a wireless communication termination signal to the CONRO controller 21 without transmitting the CONRO operation information to the management server 41 (step S11).

[0041] When the CONRO controller 21 receives the wireless communication termination signal from the communication controller 31 (step S12), it controls the power on / off circuit 22 to the power-off state. Thereby, the power supply from the battery 4 is stopped.

[0042] Also, although not shown in FIG. 5, for example, after the stove controller 21 transmits a wireless communication permission signal in step S6 and before receiving a wireless communication termination signal from the communication controller 31 (step S12), if any of the ignition / fire extinguishing buttons 6 to 9 is operated to start combustion in any of the burners (when operating an electrical load), the process returns to step S1 to transmit a wireless communication prohibition signal to the communication controller 31. When receiving this wireless communication prohibition signal, if the communication controller 31 is transmitting the stove operation information to the management server 41, the communication controller 31 interrupts the wireless communication (transmission of the stove operation information). After that, when the communication controller 31 receives a wireless communication permission signal from the stove controller 21, it transmits to the management server 41 the remaining (untransmitted) stove operation information that could not be transmitted due to the interruption of the previous transmission and the stove operation information newly received from the stove controller 21 after the interruption of the wireless communication.

[0043] In this embodiment, when all of the burners 11 to 15 are in the extinguished state, the stove controller 21 transmits a wireless communication permission signal to the communication controller 31 to permit wireless communication. The communication controller 31 transmits the stove operation information received from and stored in the stove controller 21 to the management server 41 by wireless communication when wireless communication is permitted by the stove controller 21. When all of the burners 11 to 15 are in the extinguished state, it is not necessary to operate the flow rate regulating valves 71 to 74, and all of the electrical loads in the electrical load group B that contribute to the heating operation of the stove are in a non-operating state. Therefore, it is possible to avoid a voltage drop in the battery 4 due to the overlap between the operation timing of the electrical load and the implementation timing of the wireless communication, and to prevent the operation of the electrical load from being impaired by the implementation of the wireless communication.

[0044] Also, when the communication controller 31 is performing wireless communication with the management server 41, if any of the ignition / fire extinguishing buttons 6 to 9 is operated to operate an electrical load, for example, the wireless communication is prohibited by a wireless communication prohibition signal from the stove controller 21 to interrupt the wireless communication. Therefore, it is possible to prevent the operation of the electrical load from being impaired by the implementation of the wireless communication.

[0045] In addition, the wireless communication unit 3 includes a non-volatile memory 32 that updates and stores the wireless communication date and time of the wireless communication with the management server 41. When receiving a wireless communication permission signal from the control unit 21, it calculates the elapsed time from the wireless communication date and time stored in the non-volatile memory 32 until the wireless communication permission signal is received. If this elapsed time is less than the reference time, it does not perform wireless communication. Therefore, the frequency of wireless communication can be reduced, the battery consumption due to wireless communication can be decreased, and the battery life can be extended.

[0046] In this embodiment, the power switch 5 is provided as the power supply start operation unit. However, the functions of the power switch 5 may be provided to the respective ignition and extinguishing buttons 6 to 9 without providing the power switch 5. In this case, for example, in FIG. 2, four switches SW1 may be connected in parallel, and each of the four switches SW1 may be associated with the respective ignition and extinguishing buttons 6 to 9.

[0047] In this embodiment, the battery-powered cooking range 1 is exemplified by a gas cooking range having a cooking range unit and a grill unit here, but it is not limited to this. The battery-powered cooking range 1 may not have a grill unit, for example, as long as it has a configuration including at least one gas burner.

[0048] In addition, the wireless communication unit 3 may use a wireless LAN as the communication method and communicate with the management server 41 via the Internet from an access point such as a wireless LAN router. Also, the wireless communication unit 3 may use a short-range wireless communication method such as ZigBee (registered trademark), install a dedicated gateway, and communicate with the management server 41 via the Internet.

[0049] From the above description, many improvements and other embodiments of the present invention are obvious to those skilled in the art. Therefore, the above description should be construed only as an example and is provided for the purpose of teaching those skilled in the art the best mode of carrying out the present invention. Without departing from the spirit of the present invention, the details of its structure and / or function can be substantially changed.

Industrial Applicability

[0050] The present invention is useful as a battery-powered cooker or the like that can prevent the operation of an electric load from being impaired by the implementation of wireless communication.

Description of Signs

[0051] 1 Battery-powered cooker, 3 Wireless communication unit, 4 Battery, 5 Power switch (power supply start operation unit), 11 to 15 Burners, 21 Cooker controller (control unit), 22 Power on / off circuit (power supply availability switching circuit), 41 Management server (external device)

Claims

1. A battery-powered stove driven by a battery, comprising: A wireless communication unit for performing wireless communication with an external device; A plurality of electrical loads contributing to the operation of the stove; A control unit configured to control the electrical load and communicate with the wireless communication unit; A power supply enable / disable switching circuit provided in a power supply path from the battery to the wireless communication unit, the electrical load, and the control unit, and capable of switching between a power supply enabled state allowing power supply from the battery and a power supply disabled state disabling power supply; A power supply start operation unit that is operated by a user to switch the power supply enable / disable switching circuit to the power supply enabled state and start power supply from the battery; The control unit: When the power supply start operation unit is operated by the user and the power supply enable / disable switching circuit is switched to the power supply enabled state, prohibits wireless communication with the wireless communication unit; When the power supply enable / disable switching circuit is in the power supply enabled state, transmits stove operation information regarding the operation of the stove to the wireless communication unit at a predetermined timing; When the electrical load has stopped operating after operating the electrical load, permits wireless communication with the wireless communication unit; The wireless communication unit transmits the stove operation information to the external device by wireless communication when wireless communication is permitted by the control unit, and when this transmission is completed, notifies the control unit that wireless communication has ended; The control unit switches the power supply enable / disable switching circuit to the power supply disabled state when receiving a notification from the wireless communication unit that wireless communication has ended; A battery-powered stove.

2. Comprising one or more burners, The electrical load includes a valve related to the combustion of the burner driven by electricity, The control unit: When all the burners are in the extinguished state after igniting the burners, permits wireless communication with the wireless communication unit; The battery-powered stove according to Claim 1.

3. If the control unit operates the electrical load after permitting wireless communication with the wireless communication unit and before receiving a notification from the wireless communication unit that wireless communication has ended, it prohibits wireless communication with the wireless communication unit; When wireless communication is prohibited by the control unit during wireless communication with the external device, the wireless communication unit interrupts wireless communication; The battery-powered stove according to Claim 1 or 2.

4. The wireless communication unit includes a non-volatile memory that updates and stores the date and time when wireless communication is performed with the external device, and when wireless communication is permitted from the control unit, calculates the elapsed time from the date and time stored in the non-volatile memory until the time when wireless communication is permitted, and if this elapsed time is less than the reference time, notifies the control unit that wireless communication has ended without performing wireless communication. The battery-powered cooker according to claim 1 or 2.

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