JP7024382B2 - Battery-powered controller and gas stove - Google Patents

Description

The present invention relates to a battery-powered control device that uses a battery as a power source, and is suitable for use in, for example, a battery-powered gas stove.

Conventionally, battery-powered control devices that perform various controls using a battery as a power source have been developed and commercialized in various fields. For example, Patent Document 1 below describes a gas stove using a dry battery as a power source as such a battery-powered control device. This gas stove includes a main control board for combustion control, a stove operation board for receiving operations related to the stove, and a grill operation board for receiving operations related to the grill, and each of these boards is individually equipped with a microcomputer (hereinafter referred to as a microcomputer). , "Micon") is installed. Communication is performed between the microcomputer on the main control board and the microcomputers on the stove operation board and the grill operation board, and the operation input related to the stove and the grill is transmitted to the microcomputer on the main control board.

JP-A-2015-20981

In the configuration in which the microcomputers are mounted on a plurality of boards as described above, each microcomputer consumes electric power individually, which causes a problem that the battery life is shortened. Therefore, in such a configuration, it is desired to suppress unnecessary power consumption as much as possible and extend the battery life as much as possible. In particular, in a configuration in which a liquid crystal display, a backlight device thereof, or an element requiring high power such as a white LED (Light Emitting Diode) is mounted, the life of the battery may be significantly shortened. Therefore, in a device having such a configuration, it is desired to efficiently suppress the power consumption by these members.

In view of these problems, it is an object of the present invention to provide a battery-powered control device and a gas stove capable of efficiently suppressing power consumption and extending the life of a battery.

The battery-powered control device according to the first aspect of the present invention is based on a battery mounting portion on which a battery is mounted, a first voltage generation circuit that generates a first power supply voltage based on the battery, and the battery. From the second voltage generation circuit that generates the second power supply voltage, the first load group to which the first power supply voltage is supplied from the first voltage generation circuit, and the second voltage generation circuit. A second load group to which the second power supply voltage is supplied, a cutoff circuit that cuts off the supply of the second power supply voltage by the second voltage generation circuit based on the device state, and an open circuit to the outside. It includes an operation display unit that can switch between a first state and a second state housed inside . The second load group includes a predetermined load related to the operation display unit. The break circuit cuts off the supply of the second power supply voltage to the second load group based on the operation display unit being in the second state.

According to the above configuration, for example, when the battery-powered control device is in a device state in which it is not necessary to operate the second load group, the supply of the second power supply voltage to the second load group is cut off. , Power consumption by the second load group is suppressed. Therefore, the life of the battery can be efficiently extended. Further, based on the fact that the operation display unit is in the second state housed inside, that is, the operation display unit is not used, the second load group related to the operation display unit is seconded. The supply of the power supply voltage of 2 is cut off. Therefore, the power consumption by the second load group can be efficiently suppressed and the battery life can be extended.

In this configuration, the second load group may include a circuit for driving a liquid crystal display. Further, the second load group may include a circuit for driving a high-luminance light emitting element.

As described above, by including the circuit having high power consumption in the second load group, wasteful power consumption by the second load group can be effectively suppressed, and the battery life can be more efficiently extended. ..

In the battery-powered control device according to this embodiment, it is preferable that the cutoff circuit is interposed between the battery mounting portion and the second voltage generation circuit.

According to this configuration, since the power supply to the second voltage generation circuit is also cut off by the cutoff circuit, wasteful power consumption by the second voltage generation circuit is suppressed. Therefore, the life of the battery can be increased more effectively.

The battery-powered control device according to this embodiment includes a first substrate on which a first microcomputer is installed, a second substrate on which a second microcomputer capable of communicating with the first microcomputer is installed, and the like. The first load group may be configured to include the first microcomputer and the second microcomputer.

According to this configuration, even if the disconnection circuit operates, the power supply to the first microcomputer and the second microcomputer is continued, and the communication between these microcomputers is maintained. Therefore, it is possible to appropriately control the device based on each microcomputer.

In this case, the battery-powered control device may be configured such that the first microcomputer switches and controls the break circuit.

According to this configuration, it is not necessary to separately provide a circuit for switching the cutoff circuit according to the state of the device, so that it is possible to suppress the circuit scale and reduce the cost.

Further, even if the battery-powered control device further includes another cutoff circuit that cuts off the supply of the second power supply voltage to the second load group installed on the second board based on the device state. good.

According to this configuration, the power supply to the second load group installed on the second board can be cut off individually according to the state of the device, so that the power is wasted by the second load group more finely and flexibly. Consumption can be suppressed.

In this case, the battery-powered control device may be configured such that the second microcomputer switches and controls the other break circuit.

According to this configuration, it is not necessary to separately provide a circuit for switching another cutoff circuit according to the state of the device, so that it is possible to suppress the circuit scale and reduce the cost.

In the battery-powered control device according to this embodiment, the second power supply voltage is higher than the first power supply voltage, and the second load group operates with a higher drive voltage than the first load group. Can be configured as

According to this configuration, since the power supply is cut off for the second load group having higher power consumption, wasteful power consumption can be suppressed more effectively. Therefore, the life of the battery can be increased more effectively.

The gas stove according to the second aspect of the present invention has a battery mounting portion in which a battery is mounted, a first voltage generation circuit that generates a first power supply voltage based on the battery, and a second based on the battery. The second voltage generation circuit that generates the power supply voltage, the first load group to which the first power supply voltage is supplied from the first voltage generation circuit, and the second from the second voltage generation circuit. A second load group to which the power supply voltage of the above is supplied, and a cutoff circuit that cuts off the supply of the second power supply voltage by the second voltage generation circuit based on the device state.

According to this configuration, since the power supply to the second load group is cut off based on the state of the gas stove, wasteful power consumption by the second load group can be appropriately suppressed. Therefore, the life of the battery can be efficiently extended, and cooking can proceed more smoothly.

As described above, according to the present invention, it is possible to provide a battery-powered control device and a gas stove capable of efficiently suppressing power consumption and extending the life of a battery.

The effects or significance of the present invention will be further clarified by the description of the embodiments shown below. However, the embodiments shown below are merely examples for implementing the present invention, and the present invention is not limited to those described in the following embodiments.

FIG. 1 is a perspective view showing a configuration of a gas stove according to an embodiment. FIG. 2 is a block diagram showing a configuration of a gas stove according to an embodiment. FIG. 3 is a flowchart showing the power cutoff control according to the embodiment. FIG. 4 is a block diagram showing a configuration of a gas stove according to a modified example. FIG. 5 is a flowchart showing a power cutoff control according to a modified example.

Hereinafter, the gas stove 1 which is an embodiment of the combustion device of the present invention will be described with reference to the drawings.

In the present embodiment, the constant voltage circuit 31 and the constant voltage circuit 32 correspond to the "first voltage generation circuit" and the "second voltage generation circuit" described in the claims, respectively, and the FET 33 comprises. Corresponding to the "break circuit" described in the claims, the operation panels 11 and 13 correspond to the "operation display unit" described in the claims. However, the invention described in the claims is not limited to the configuration of the embodiment by the above association.

FIG. 1 is a perspective view showing a configuration of a gas stove 1 according to the present embodiment.

As shown in FIG. 1, the gas stove 1 includes a stove main body 2 and a top plate 3 installed on the upper part of the stove main body 2. Three stove portions 4a, 4b, and 4c are arranged on the top plate 3. The stove portions 4a, 4b, and 4c each include a gas burner that burns gas as fuel, and a like for installing a pot or the like. Further, two exhaust ports 5 are provided on the rear portion of the top plate 3 so as to be arranged side by side.

Inside the stove main body 2, a grill portion 6 is provided in a central portion. Grill burners (not shown) are provided above and below the grill portion 6, and grill cooking is performed by burning the grill burners. Exhaust is performed from the grill portion 6 through the exhaust port 5.

A grill door 7 is provided in the center of the front of the stove body 2. A grill plate (not shown) is integrally provided on the back side of the grill door 7, and by moving the grill door 7 forward, the grill plate can be pulled out from the grill portion 6. Further, on the front surface of the stove main body 2, on the right side and the left side of the grill door 7, an operation unit 8 for the stove portions 4a, 4b, and 4c and an operation portion 9 for the grill portion 6 are provided, respectively.

The operation unit 8 includes three ignition buttons 10a, 10b, and 10c corresponding to the three stove units 4a, 4b, and 4c, and a kangaroo pocket type operation panel 11. The ignition buttons 10a, 10b, and 10c are operated when igniting the corresponding stove portions 4a, 4b, and 4c, and when extinguishing the igniting stove portions 4a, 4b, and 4c.

On the operation panel 11, an operation key group for inputting predetermined settings for the stove units 4a, 4b, and 4c, information corresponding to the operation for the operation key group, and ignition / extinguishing of the stove units 4a, 4b, and 4c are performed. A display unit for displaying the status and the like is provided. The display unit includes a 7-segment display using a white LED as a light source. The 7-segment display displays, for example, the timer time set in the stove units 4a, 4b, and 4c.

The operation unit 9 includes an ignition button 12 and a kangaroo pocket type operation panel 13. The ignition button 12 is operated when igniting the grill burner of the grill portion 6 and when extinguishing the igniting grill burner.

The operation panel 13 displays an operation key group for inputting a predetermined setting for the grill unit 6, information corresponding to the operation for the operation key group, an ignition / extinguishing state of the grill unit 6, and the like. A part is provided. The display unit includes a 7-segment display using a white LED (Light Emitting Diode) as a light source. For example, the timer time set in the grill unit 6 is displayed by the 7-segment display. Further, the grill unit 6 is provided with a liquid crystal display for displaying information related to cooking.

The operation panels 11 and 13 can be rotated back and forth with the lower end as an axis. In the first state shown in FIG. 1, the operation panels 11 and 13 are open to the outside of the operation key group and the display unit on the upper surface, and can receive operation input for these operation key groups. When the operation panels 11 and 13 are pushed backward from the first state shown in FIG. 1, the operation panels 11 and 13 are locked to the second state in which the front surface is flush with the front surface of the stove body 2. In this second state, the operation keys and the display unit on the upper surfaces of the operation panels 11 and 13 are housed in the stove body 2 and shielded from the outside, so that the operation panels 11 and 13 operate on these operation keys. Unable to accept input. The operation panels 11 and 13 are unlocked by pushing the front surface in the second state, rotate forward by an elastic force such as a spring, and return to the first state shown in FIG.

A power switch 14 for activating the gas stove 1 is provided at the front right end of the stove main body 2.

FIG. 2 is a block diagram showing the configuration of the gas stove 1 according to the present embodiment. FIG. 2 shows the wiring state of the power system in the circuit section.

In addition to the power switch 14 shown in FIG. 1, the gas stove 1 includes a battery mounting unit 20, a main control board 30, a grill operation board 40, a stove operation board 50, and a ventilation interlocking board 60. In this embodiment, two dry batteries are mounted on the battery mounting portion 20. The battery mounting unit 20 supplies the power of the mounted battery 20a to the main control board 30 via the power switch 14.

A main circuit unit related to combustion control is mounted on the main control board 30. On the grill operation board 40, a circuit unit related to the operation panel 13 for the grill unit 6 shown in FIG. 1 is mounted. The circuit unit related to the operation panel 11 for the stove units 4a, 4b, and 4c shown in FIG. 1 is mounted on the stove operation board 50. A circuit unit (for example, an infrared communication circuit or the like) for performing a cooperative operation with a ventilation device such as a range hood is mounted on the ventilation interlocking board 60.

Note that FIG. 2 shows the main circuit parts installed on the main control board 30, the grill operation board 40, and the stove operation board 50, and the circuit parts installed on these boards are the ones shown in FIG. Not limited. For example, the grill operation board 40 and the stove operation board 50 may further include a circuit unit related to operation keys.

The main control board 30 includes constant voltage circuits 31, 32, FETs (Field effect transistors) 33, a microcomputer 34, a solenoid valve circuit 35, a latch valve circuit 36, an IG circuit 37, and a motor drive circuit 38. is set up.

The constant voltage circuit 31 generates a constant voltage based on the voltage supplied from the battery 20a via the line L0 and outputs the constant voltage to the line L1. The constant voltage circuit 31 is composed of, for example, a DC-DC converter. The constant voltage circuit 31 may be configured by a regulator. Here, the constant voltage circuit 31 generates a constant voltage of 3V.

The constant voltage circuit 32 generates a constant voltage based on the voltage supplied from the battery 20a via the line L0 and the FET 33, and outputs the constant voltage to the line L2. The constant voltage circuit 32 is composed of, for example, a DC-DC converter. The constant voltage circuit 32 may be configured by a regulator. Here, the constant voltage circuit 32 generates a constant voltage of 5V. The voltage generated by the constant voltage circuit 32 is set to the voltage required to operate the liquid crystal circuit 46 and the white LED circuits 45 and 54.

The FET 33 is inserted between the battery mounting portion 20 and the constant voltage circuit 32, and the supply of the battery voltage to the constant voltage circuit 32 is cut off by the control from the microcomputer 34. The microcomputer 34 controls each circuit unit on the main control board 30 based on the information regarding the operation input received from the microcomputers 42 and 52. The microcomputer 34 can communicate with the microcomputer 42 of the grill operation board 40 and the microcomputer 52 of the stove operation board 50. This communication may be performed via the power supply line L1 or may be performed via a separately arranged communication line. When the line L1 is used for communication, a communication signal is superimposed on the voltage supplied from the constant voltage circuit 31, and communication between the microcomputer 34 and the microcomputer 42 and the microcomputer 52 is performed.

The solenoid valve circuit 35 is a circuit for opening and closing a solenoid valve provided in a gas fuel pipe. The latch valve circuit 36 is a circuit for driving a valve for adjusting the thermal power of the grill portion 6. The IG circuit 37 is a circuit for driving an igniter for igniting the stove portions 4a to 4c and the grill portion 6. The motor drive circuit 38 is a circuit for driving a stepping motor for adjusting the amount of gas supplied to the gas burners of the stove portions 4a, 4b, and 4c and the grill burners of the grill portion 6.

A voltage of 3V generated by the constant voltage circuit 31 is supplied to the microcomputer 34, the solenoid valve circuit 35, the latch valve circuit 36, the IG circuit 37, and the motor drive circuit 38 installed on the main control board 30.

A detection switch 41, a microcomputer 42, a memory 43, an orange LED circuit 44, a white LED circuit 45, and a liquid crystal circuit 46 are installed on the grill operation board 40.

The detection switch 41 opens and closes according to the opening and closing of the operation panel 13 for the grill portion 6 shown in FIG. For example, the detection switch 41 is in the closed state when the operation panel 13 is in the open state (first state), and is in the open state when the operation panel 13 is in the closed state (second state).

The microcomputer 42 controls each circuit unit installed on the grill operation board 40. The memory 43 is composed of, for example, a serial flash memory, and stores various information necessary for control by the microcomputer 42. The microcomputer 42 stores information indicating the state of the detection switch 41 in the memory 43 at any time, and reads information indicating the state of the detection switch 51 from the memory 43 in response to an inquiry from the microcomputer 34 on the main control board 30 side. It is transmitted to the microcomputer 34.

The orange LED circuit 44 drives the orange LED (Light Emitting Diode) arranged on the operation panel 13 (see FIG. 1) for the grill unit 6 based on the control from the microcomputer 42. The orange LED is a light source for displaying the ignition / extinguishing state of the grill portion 6. The white LED circuit 45 drives the white LED arranged on the operation panel 13 for the grill unit 6 based on the control from the microcomputer 42. The white LED is the light source of the 7-segment display.

The liquid crystal circuit 46 drives the liquid crystal display provided on the operation panel 13 for the grill portion 6 (see FIG. 1) based on the control from the microcomputer 42. The liquid crystal display includes a liquid crystal panel and its backlight device. The liquid crystal circuit 46 drives the liquid crystal panel and the backlight device based on the control from the microcomputer 42.

Of the circuit units installed on the grill operation board 40, the detection switch 41, the microcomputer 42, the memory 43, and the orange LED circuit 44 are each supplied with a voltage of 3V generated by the constant voltage circuit 31 via the line L1. To. Further, a voltage of 5 V generated by the constant voltage circuit 32 is supplied to the white LED circuit 45 and the liquid crystal circuit 46 installed on the grill operation board 40 via the line L2.

A detection switch 51, a microcomputer 52, a memory 53, a white LED circuit 54, and a voice IC (Integrated Circuit) 56 are installed on the stove operation board 50.

The detection switch 51 opens and closes according to the opening and closing of the operation panel 11 for the stove portions 4a to 4c shown in FIG. For example, the detection switch 51 is in the closed state when the operation panel 11 is in the open state (first state), and is in the open state when the operation panel 11 is in the closed state (second state).

The microcomputer 52 controls each circuit unit installed on the stove operation board 50. The memory 53 is composed of, for example, a serial flash memory, and stores various information necessary for control by the microcomputer 52. The microcomputer 52 stores information indicating the state of the detection switch 51 in the memory 53 at any time, and reads information indicating the state of the detection switch 51 from the memory 53 in response to an inquiry from the microcomputer 34 on the main control board 30 side. It is transmitted to the microcomputer 34.

The white LED circuit 54 drives a white LED (Light Emitting Diode) arranged on the operation panel 11 (see FIG. 1) for the stove units 4a to 4c based on the control from the microcomputer 52. The white LED is the light source of the 7-segment display on the operation panel 11. The voice IC 55 outputs a predetermined voice from the speaker 55a based on the control from the microcomputer 52. The speaker 55a is installed inside the stove main body 2 shown in FIG.

Of the circuit units installed on the stove operation board 50, the detection switch 51, the microcomputer 52, the memory 53, and the voice IC 55 are each supplied with a voltage of 3 V generated by the constant voltage circuit 31 via the line L1. Further, a voltage of 5V generated by the constant voltage circuit 32 is supplied to the white LED circuit 54 installed on the stove operation board 50 via the line L2.

Of the circuit sections shown in FIG. 2, the circuit section to which the voltage of 3 V generated by the constant voltage circuit 31 is supplied constitutes the "first load group" described in the scope of the patent claim. The circuit unit to which the voltage of 5V generated by the constant voltage circuit 32 is supplied constitutes the "second load group" described in the scope of the patent claim. In this embodiment, the liquid crystal circuit 46 and the white LED circuits 45, 54 together with the liquid crystal display and the white LED form a second load group. Further, the microcomputers 34, 42, and 52 installed on the main control board 30, the grill operation board 40, and the stove operation board 50, respectively, are included in the first load group. The microcomputer 34 corresponds to the "first microcomputer" described in the claims, and the microcomputers 42 and 52 correspond to the "first microcomputer" described in the claims.

Next, the switching control of the FET 33 by the microcomputer 34 will be described with reference to the flowchart of FIG.

In the microcomputer 34, when the power switch 14 is set to the ON state by the user and the voltage supply from the constant voltage circuit 31 is started (S101: YES), both the operation panels 11 and 13 shown in FIG. 1 are closed. It is determined whether or not the state (second state) is present (S102). Specifically, the microcomputer 34 acquires information indicating the states of the detection switches 41 and 51 from the microcomputer 42 of the grill operation board 40 and the microcomputer 52 of the stove operation board 50 at predetermined timings, and is based on the acquired information. It is determined whether or not both the operation panels 11 and 13 are in the closed state (second state).

When both the operation panels 11 and 13 are in the closed state (second state) (S102: YES), the microcomputer 34 sets the FET 33 to OFF (S103) and cuts off the supply of the battery voltage to the constant voltage circuit 32. do. As a result, the supply of voltage to the second load group (liquid crystal circuit 46, white LED circuit 45, 54) by the constant voltage circuit 32 is cut off.

On the other hand, when either or both of the operation panels 11 and 13 are in the open state (first state) (S102: NO), the microcomputer 34 sets the FET 33 to ON (S104) with respect to the constant voltage circuit 32. Maintain battery voltage supply. As a result, the constant voltage circuit 32 supplies the voltage to the second load group (liquid crystal circuit 46, white LED circuit 45, 54).

After that, the microcomputer 34 repeats the processes of steps S102 to S104 until the power switch 14 is switched to the OFF state (S105). If either or both of the operation panels 11 and 13 are in the open state (first state) (S102: NO) until the power switch 14 is switched to the OFF state, the microcomputer 34 turns the FET 33 into the ON state. After the setting (S104), when both the operation panels 11 and 13 are closed (second state) (S102: YES), the microcomputer 34 sets the FET 33 to the OFF state (S103).

In this way, the FET 33 is switched between the ON state and the OFF state according to the open / closed state of the operation panels 11 and 13, and power is supplied to the second load group (liquid crystal circuit 46, white LED circuit 45, 54). The cutoff is switched. Then, when the power switch 14 is switched to the OFF state (S105: YES) and the power supply from the constant voltage circuit 31 is cut off, the microcomputer 34 ends the switching control of the FET 33 shown in FIG.

<Effect of embodiment>
According to this embodiment, the following effects can be achieved.

When both the operation panels 11 and 13 are closed, that is, when the gas controller 1 is in a device state in which it is not necessary to operate the second load group (liquid crystal circuit 46, white LED circuit 45, 54). , FET 33 is set to the OFF state, and the supply of voltage to the second load group (liquid crystal circuit 46, white LED circuit 45, 54) is cut off. As a result, wasteful power consumption by the second load group (liquid crystal circuit 46, white LED circuit 45, 54) can be suppressed, and the life of the battery 20a can be efficiently extended.

Further, as a second load group to which a voltage of 5 V is supplied from the constant voltage circuit 32, a liquid crystal circuit 46 for driving a liquid crystal display and a white LED circuit for driving a white LED which is a high-intensity light emitting element. 45, 54 are included. As described above, since the second load group includes the circuit having high power consumption, the wasteful power consumption by the second load group (liquid crystal circuit 46 and white LED circuits 45, 54) is effectively suppressed, and the battery is used. The life of 20a can be increased more efficiently.

Further, as shown in FIG. 2, the FET 33 (cutoff circuit) is installed so as to be interposed between the battery mounting portion 20 and the constant voltage circuit 32. Therefore, when the FET 33 is switched to the OFF state, the voltage supply to the second load group (liquid crystal circuit 46 and the white LED circuits 45, 54) and the battery power supply to the constant voltage circuit 32 are cut off, so that the constant voltage is obtained. Wasted power consumption by the circuit 32 can be further suppressed. Therefore, the life of the battery can be increased more effectively.

Further, as the first load group to which a voltage of 3 V is supplied from the constant voltage circuit 31, the microcomputer 34 installed on the main control board 30, the microcomputer 42 installed on the grill operation board 40, and the microcomputer operation board 50. The installed microcomputer 52 is included. Therefore, even if the FET 33 is turned off, the power supply to the microcomputer 34 and the microcomputers 42 and 52 is continued, and the communication between the microcomputers 34, 42 and 52 is maintained. Therefore, the gas stove 1 can be appropriately controlled based on these microcomputers 34, 42, and 52.

Further, in the present embodiment, the microcomputer 34 installed on the main control board 30 is configured to switch and control the FET 33. Therefore, it is not necessary to separately provide a circuit for switching the FET 33 according to the states of the operation panels 11 and 13, so that the circuit scale can be suppressed and the cost can be reduced.

Further, in the present embodiment, the voltage generated by the constant voltage circuit 32 is higher than the voltage generated by the constant voltage circuit 31, and the second load group (liquid crystal) that receives the voltage supply from the constant voltage circuit 32. The circuit 46, the white LED circuit 45, 54) operates with a drive voltage higher than that of the first load group (microcomputer 34, etc.) supplied with voltage from the constant voltage circuit 31. Therefore, when the FET 33 is switched to the OFF state, the power supply is cut off for the second load group having higher power consumption, so that wasteful power consumption can be suppressed more effectively. Therefore, the life of the battery can be increased more effectively.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and the embodiments of the present invention can be changed in various ways other than the above. ..

<Change example>
FIG. 4 is a block diagram showing the configuration of the gas stove 1 according to the modified example.

In this modification, the FETs 47 and 48 are interposed between the white LED circuit 45 and the liquid crystal circuit 46 installed on the grill operation board 40 and the line L2, respectively. Further, the FET 56 is interposed between the white LED circuit 54 installed on the stove operation board 50 and the line L2.

When the FETs 47, 48, and 56 are in the ON state, the voltage generated by the constant voltage circuit 32 is supplied to the white LED circuit 45, the liquid crystal circuit 46, and the white LED circuit 54. When the FETs 47, 48, and 56 are switched to the OFF state, the voltage supply from the constant voltage circuit 32 to the white LED circuits 45, 54 and the liquid crystal circuit 46 is cut off. The FETs 47 and 48 are controlled by the microcomputer 42, and the FET 56 is controlled by the microcomputer 52.

FIG. 5 is a flowchart showing a power cutoff control according to this modified example. The flowchart of FIG. 5 is performed by the microcomputers 42 and 52, respectively. Here, the control in the microcomputer 42 will be described with reference to the flowchart of FIG.

In the microcomputer 42, when the power switch 14 is set to the ON state and the voltage is supplied by the line L1 (S201: YES), is the operation panel 13 for the grill portion 6 in the closed state (second state)? It is determined whether or not (S202). When the operation panel 13 is in the closed state (second state) (S202: YES), the microcomputer 42 sets the FETs 47 and 48 to the OFF state, and from the constant voltage circuit 32 for the white LED circuit 45 and the liquid crystal circuit 46. The voltage supply is cut off (S203). On the other hand, when the operation panel 13 is in the open state (first state) (S202: NO), the microcomputer 42 sets the FETs 47 and 48 to the ON state, and sets the voltage from the constant voltage circuit 32 to the white LED circuit 45 and the white LED circuit 45. It is supplied to the liquid crystal circuit 46 (S204).

The microcomputer 42 repeats the processes of steps S202 to S204 until the power switch 14 is set to the OFF state (S205). As a result, the supply and disconnection of the voltage to the white LED circuit 45 and the liquid crystal circuit 46 are switched according to the opening and closing of the operation panel 13 for the grill portion 6. After that, when the power switch 14 is set to the OFF state (S205: YES), the microcomputer 42 ends the process of FIG.

In the control of the microcomputer 52, the determination in step S202 is performed on the operation panel 11 for the stove units 4a to 4c, and the processing in steps S203 and 204 is performed on the FET 56. As a result, the supply and cutoff of the voltage to the white LED circuit 54 is switched according to the opening and closing of the operation panel 11 for the stove units 4a to 4c.

According to this modification, the power supply to the white LED circuits 45, 54 and the liquid crystal circuit 46 installed on the grill operation board 40 and the stove operation board 50 is individually cut off according to the open / closed state of the operation panels 11 and 13. Therefore, wasteful power consumption due to these load groups can be suppressed more finely and flexibly. Therefore, the life of the battery can be increased more efficiently.

Further, since the FETs 47 and 48 are switched and controlled by the microcomputer 42 and the FET 56 is switched and controlled by the microcomputer 52, it is not necessary to separately provide a circuit for switching the FETs 47 and 48, 56, and the circuit scale can be suppressed and the cost can be reduced. Can be planned.

In this modification, the control of the flowchart shown in FIG. 3 may be omitted. However, when both the operation panels 11 and 13 are closed, the constant voltage circuit 32 cuts off the power supply to the constant voltage circuit 32 of the main control board 30 by the control of the flowchart shown in FIG. Since the power consumption can be reduced, the power consumption of the gas stove 1 can be suppressed more effectively. Therefore, it is preferable that the flowchart of FIG. 3 is executed together with the flowchart of FIG.

<Other changes>
In the above embodiment, the liquid crystal display is provided on the operation panel 13 for the grill unit 6 as the load of the second load group, but the operation for the stove units 4a to 4c as the load of the second load group. A liquid crystal display may be provided on the panel 11. Further, as a load of the second load group, a liquid crystal display may be provided on the top plate 3. In this case, the liquid crystal display displays, for example, the cooking state in the stove units 4a to 4c or the cooking state in the grill unit 6. Then, in a state where cooking in the stove units 4a to 4c is stopped or in a state where cooking in the grill unit 6 is stopped, the supply of voltage from the constant voltage circuit 32 to the liquid crystal display is cut off.

Further, in the above embodiment, the microcomputer 34 controls the FET 33, but the ON / OFF state of the FET 33 may be switched by a circuit other than the microcomputer 34. For example, a separate hardware circuit is provided to output a signal that becomes high level when both the detection switches 41 and 51 are ON and low level when at least one of the detection switches 41 and 51 is OFF, and the output of this circuit is provided. The FET 33 may be controlled by the above.

Similarly, in the modification shown in FIG. 4, the FETs 47 and 48 may be controlled by a hardware circuit whose output is switched between high level and low level according to the ON / OFF of the detection switch 41, and the FET 56 detects. The output may be controlled by a hardware circuit that switches between high level and low level according to the ON / OFF of the switch 51.

Further, the second load group is not limited to the white LED circuits 45 and 54 and the liquid crystal circuit 46 shown in the above-described embodiment and modification examples, and various modifications can be made as appropriate.

Further, the configuration of the gas stove 1 is not limited to the configuration shown in the above embodiment, and various changes can be made as appropriate. For example, in the above embodiment, the gas stove 1 is provided with three stove portions 4a, 4b, and 4c, but the number of stove portions provided in the gas stove 1 may be any number.

Further, in the above embodiment, the gas stove 1 is shown as an example of the battery-powered control device of the present invention, but the present invention can also be applied to other battery-powered control devices using a battery as a power source.

In addition, the embodiments of the present invention can be appropriately modified within the scope of the claims.

1 Gas stove (battery-powered control device)
11, 13 Operation panel (operation display)
20 Battery mounting part 20a Battery 30 Main control board (first board)
31 Constant voltage circuit (first voltage generation circuit)
32 Constant voltage circuit (second voltage generation circuit)
33 FET (interruption circuit)
34 Microcomputer (first microcomputer)
40 Grill operation board (second board)
42 Microcomputer (second microcomputer)
45 White LED circuit (second load group)
46 LCD circuit (second load group)
50 Stove operation board (second board)
52 Microcomputer (second microcomputer)
54 White LED circuit (second load group)

Claims (11)

The battery mounting part where the battery is mounted and the battery mounting part
A first voltage generation circuit that generates a first power supply voltage based on the battery,
A second voltage generation circuit that generates a second power supply voltage based on the battery,
The first load group to which the first power supply voltage is supplied from the first voltage generation circuit, and
A second load group to which the second power supply voltage is supplied from the second voltage generation circuit, and
A cutoff circuit that cuts off the supply of the second power supply voltage by the second voltage generation circuit based on the device state, and
It is equipped with an operation display unit that can switch between the first state open to the outside and the second state housed inside .
The second load group includes a predetermined load related to the operation display unit.
The break circuit cuts off the supply of the second power supply voltage to the second load group based on the operation display unit being in the second state.
A battery-powered control device characterized by this. In the battery-powered control device according to claim 1 ,
The second load group includes a circuit for driving a liquid crystal display.
A battery-powered control device characterized by this. In the battery-powered control device according to claim 1 or 2 .
The second load group includes a circuit for driving a high-luminance light emitting element.
A battery-powered control device characterized by this. In the battery-powered control device according to any one of claims 1 to 3 .
The cutoff circuit is interposed between the battery mounting portion and the second voltage generation circuit.
A battery-powered control device characterized by this. In the battery-powered control device according to any one of claims 1 to 4 .
The first board on which the first microcomputer is installed,
A second substrate on which a second microcomputer capable of communicating with the first microcomputer is installed is provided.
The first load group includes the first microcomputer and the second microcomputer.
A battery-powered control device characterized by this. In the battery-powered control device according to claim 5 .
The first microcomputer switches and controls the break circuit.
A battery-powered control device characterized by this. In the battery-powered control device according to claim 5 or 6 .
Further comprising another cutoff circuit that cuts off the supply of the second power supply voltage to the second load group installed on the second board based on the device state.
A battery-powered control device characterized by this. In the battery-powered control device according to claim 7 .
The second microcomputer switches and controls the other break circuit.
A battery-powered control device characterized by this. In the battery-powered control device according to any one of claims 1 to 8 .
The second power supply voltage is higher than the first power supply voltage.
The second load group operates with a higher drive voltage than the first load group.
A battery-powered control device characterized by this. In the battery-powered control device according to any one of claims 1 to 9 .
The battery-powered control device is a gas stove.
A battery-powered control device characterized by this. The battery mounting part where the battery is mounted and the battery mounting part
A first voltage generation circuit that generates a first power supply voltage based on the battery,
A second voltage generation circuit that generates a second power supply voltage based on the battery,
The first load group to which the first power supply voltage is supplied from the first voltage generation circuit, and
A second load group to which the second power supply voltage is supplied from the second voltage generation circuit, and
A cutoff circuit for cutting off the supply of the second power supply voltage by the second voltage generation circuit based on the device state is provided.
A gas stove that features that.

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