JP2018132268A - Gas combustion tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technology capable of prolonging a service life of a battery, in a gas combustion tool including an electrical drive valve and an electrical light-emitting element.SOLUTION: This invention discloses a gas combustion tool. The gas combustion tool includes: an electrical drive valve provided in a flow passage for fuel gas; an electrical light-emitting element provided so as to be visually recognized from a user; a controller; a first battery; and a second battery separate from the first battery. The electrical drive valve is configured to be driven by power supplied from the first battery. The electrical light-emitting element is configured to be driven by power supplied from the second battery.SELECTED DRAWING: Figure 1

Description

  The technology disclosed in the present specification relates to a gas combustion appliance.

  Patent Document 1 discloses a gas combustion appliance. The gas combustion appliance includes an electrically driven valve provided in a fuel gas flow path, an electroluminescent element provided so as to be visible to the user, a controller, and a battery. In the gas combustion appliance, the electrically driven valve and the electroluminescent element are operated by electric power supplied from the battery.

Japanese Patent Laying-Open No. 2015-185011

  In general, the battery voltage decreases as the internal resistance increases as the battery is used, and temporarily decreases when a large current is supplied from the battery. Electrically driven valves require large currents during operation. For this reason, the battery voltage which supplies electric power to the electrically driven valve temporarily decreases the battery voltage when the electrically driven valve operates. Therefore, for batteries that supply power to the electrically driven valve, even if the battery voltage temporarily decreases due to the operation of the electrically driven valve, the lower limit of the battery voltage that allows the electrically driven valve to operate normally The value must be set as the end voltage. Usually, the end voltage set in this way is set to a voltage higher than the end voltage of the battery itself set in consideration of an increase in the internal resistance of the battery. On the other hand, the electroluminescent element requires a high voltage during operation, but by using a booster circuit, it can be operated normally even when the battery voltage is lowered. For this reason, the end voltage of the battery that supplies power to the electroluminescent device can be set to the same voltage as the end voltage of the battery itself.

  When the electric drive valve and the electric light emitting element are operated with electric power supplied from the same battery as in the gas combustion appliance of Patent Document 1, the battery is driven by the electric drive valve. It must be set in light of a temporary drop in voltage. In this case, even if the battery voltage has not yet dropped to the end voltage of the battery itself and the electroluminescent element can be operated normally, the user is prompted to replace the battery. In addition, when the electrically driven valve and the electroluminescent element are operated with the electric power supplied from the same battery, the battery voltage temporarily lowered by the driving of the electrically driven valve is used for the operation of the electroluminescent element. It is necessary to boost the voltage to a necessary voltage with a booster circuit. Normally, when the boosting ratio of the booster circuit is increased, the current consumption in the booster circuit is greatly increased, and battery consumption is accelerated.

  In this specification, the technique which solves said subject is provided. The present specification provides a technique capable of realizing a long battery life in a gas combustion instrument including an electrically driven valve and an electroluminescent element.

  The present specification discloses a gas burning appliance. The gas combustion appliance is different from the electric drive valve provided in the flow path of the fuel gas, the electroluminescent element provided so as to be visible to the user, the controller, the first battery, and the first battery. The body has a second battery. The electrically driven valve is operated by electric power supplied from the first battery. The electroluminescent element is operated by electric power supplied from the second battery.

  In the gas combustion appliance described above, the electrically driven valve and the electroluminescent element are configured to operate with electric power supplied from separate batteries. By setting it as such a structure, the end voltage of the 1st battery which supplies electric power to an electric drive valve, and the end voltage of the 2nd battery which supplies electric power to an electroluminescent element are set separately. Can do. This can prevent the user from prompting the user to replace the battery even though the first battery and the second battery can still be used in each application. Further, according to the gas appliance described above, it is not necessary to boost the battery voltage temporarily lowered by driving the electrically driven valve to a voltage necessary for the operation of the electroluminescent element, thereby suppressing battery consumption. be able to. According to said gas combustion appliance, the lifetime improvement of a 1st battery or a 2nd battery is realizable.

  In the gas combustion appliance described above, the controller includes a combustion control microcomputer for controlling the operation of the electrically driven valve, and a display control microcomputer for controlling the operation of the electric light emitting element, which is separate from the combustion control microcomputer. The combustion control microcomputer may be operated by electric power supplied from the first battery, and the display control microcomputer may be operated by electric power supplied from the second battery.

  According to the gas combustion appliance described above, the combustion control microcomputer that controls the operation of the electrically driven valve to control the combustion of the fuel gas, and the operation of the electroluminescent element to control the display to the user are controlled. By providing separate display control microcomputers, it is possible to individually switch the presence or absence of power supply to each microcomputer. The power saving of the gas burning appliance can be achieved.

  The gas combustion appliance may further include a switch operated by a user, and the combustion control microcomputer permits or prohibits power supply from the second battery to the electric light emitting element and the display control microcomputer. The microcomputer for combustion control may be configured to switch the switch over a first predetermined time when power supply from the second battery to the electroluminescent element and the display control microcomputer is permitted. When the operation is not performed, power supply from the second battery to the electroluminescent element and the display control microcomputer may be prohibited.

  According to the gas burning appliance described above, it is possible to prevent the display control microcomputer from continuously lighting the electric light emitting element and consuming extra power even though the user does not operate the switch. can do.

  In the gas combustion appliance described above, the combustion control microcomputer receives the second predetermined time after the power supply to the electric light emitting element and the display control microcomputer from the second battery is prohibited. Power supply from the battery to the electroluminescent element and the display control microcomputer may be permitted.

  According to the gas combustion appliance described above, even if the user does not perform the switch operation again when the electroluminescent element is turned off because the user has not performed the switch operation for the first predetermined time, the second operation is not performed. When the predetermined time elapses, the electroluminescent element can be turned on again. User convenience can be improved.

  In the gas combustion appliance described above, when the combustion control microcomputer detects an operation on the switch by the user while prohibiting power supply from the second battery to the electric light emitting element and the display control microcomputer. In addition, power supply from the second battery to the electroluminescent element and the display control microcomputer may be permitted.

  According to the gas combustion appliance described above, when the user does not perform any operation on the switch for the first predetermined time and the electroluminescent element is turned off, the user can quickly turn on the electricity when the user performs the switch operation again. The target light emitting element can be turned on again. User convenience can be improved.

  The gas combustion appliance described above may further include an ignition device that ignites by discharge, and the ignition device may be operated by electric power supplied from the first battery.

  Since the ignition device requires a large current during operation, like the electrically driven valve, the battery voltage for the battery that supplies power to the ignition device temporarily decreases during operation of the ignition device. According to the gas combustion appliance, the end voltage of the first battery that supplies power to the electrically driven valve and the ignition device and the end voltage of the second battery that supplies power to the electroluminescent element are separately set. Can be set. This can prevent the user from prompting the user to replace the battery even though the first battery and the second battery can still be used in each application. In addition, according to the gas appliance described above, it is not necessary to boost the battery voltage temporarily lowered by driving the ignition device to a voltage necessary for the operation of the electroluminescent element, thereby suppressing battery consumption. it can. According to said gas combustion appliance, the lifetime improvement of a 1st battery or a 2nd battery is realizable.

It is a figure which shows typically the structure of the gas combustion instrument 2 of an Example. It is a figure which shows a part of circuit structure of the gas combustion instrument 2 of an Example. It is a figure which shows another part of circuit structure of the gas combustion instrument 2 of an Example. It is a figure which shows another part of circuit structure of the gas combustion instrument 2 of an Example. It is a figure which shows a part of circuit structure at the time of removing the 2nd battery 106 about the gas combustion instrument 2 of an Example. FIG. 5 is a diagram showing a part of a circuit configuration of the gas combustion appliance 2 of the embodiment when the second battery 106 is removed and the second power supply potential V2 and the first power supply potential V1 are connected by the harness 204. It is a figure which shows another one part modification of the circuit structure of the gas combustion instrument 2 of an Example.

(Example)
FIG. 1 shows a schematic configuration of a gas combustion appliance 2 of the present embodiment. The gas combustion appliance 2 according to the present embodiment is a cooking gas stove including a first stove 4, a second stove 6, and a third stove 8 disposed in an upper portion and a grill 10 disposed inside.

  The first stove 4 includes a first stove burner 12, a first stove ignition device 14 that ignites the first stove burner 12, and a first stove flame detector 16 that detects the presence or absence of flame in the first stove burner 12. The 1st stove temperature detector 18 which detects the temperature of the bottom face of cooking containers, such as a pan mounted in the 1st stove 4, is provided. The second stove 6 includes a second stove burner 20, a second stove ignition device 22 that ignites the second stove burner 20, and a second stove flame detector 24 that detects the presence or absence of flame in the second stove burner 20. The 2nd stove temperature detector 26 which detects the temperature of the bottom face of cooking containers, such as a pan mounted in the 2nd stove 6, is provided. The third stove 8 includes a third stove burner 28, a third stove ignition device 30 that ignites the third stove burner 28, and a third stove flame detector 32 that detects the presence or absence of flame in the third stove burner 28. A third stove temperature detector 34 for detecting the temperature of the bottom surface of a cooking container such as a pan placed on the third stove 8 is provided.

  The grill cabinet 10 includes a grill upper burner 36 that burns flames downward from the top inside the grill cabinet 10, a grill upper igniter 38 that ignites the grill upper burner 36, and the presence or absence of flame in the grill upper burner 36. The first grill lower burner 42 and the first grill lower burner 42 for igniting the flame upward from the lower part inside the grill 10 and the first grill lower burner 42 are ignited. A first grill lower igniter 46, a second grill lower igniter 48 that ignites the second grill lower burner 44, and a first grill lower flame detector 50 that detects the presence or absence of flame in the first grill lower burner 42. , A second grill lower flame detector 52 for detecting the presence or absence of flame in the second grill lower burner 44, and a grill temperature detector 5 for detecting the temperature in the grill cabinet 10. It is provided.

  A fuel gas such as city gas or propane gas is supplied to the gas combustion appliance 2 via a gas supply path 56. A main on-off valve 58 that opens and closes the gas supply path 56 is interposed in the gas supply path 56. The gas supply path 56 branches into a first stove gas supply path 60, a second stove gas supply path 62, a third stove gas supply path 64, and a grill gas supply path 66.

  The first stove gas supply path 60 supplies fuel gas to the first stove burner 12. The first stove gas supply path 60 is provided with a first stove open / close valve 68 that opens and closes the first stove gas supply path 60 and a first stove flow rate adjustment valve 70 that adjusts the flow rate of fuel gas flowing through the first stove gas supply path 60. It is disguised. The second stove gas supply path 62 supplies fuel gas to the second stove burner 20. The second stove gas supply path 62 includes a second stove open / close valve 72 that opens and closes the second stove gas supply path 62 and a second stove flow rate adjustment valve 74 that adjusts the flow rate of fuel gas flowing through the second stove gas supply path 62. It is disguised. The third stove gas supply path 64 supplies fuel gas to the third stove burner 28. The third stove gas supply path 64 is provided with a third stove open / close valve 76 that opens and closes the third stove gas supply path 64 and a third stove flow rate adjustment valve 78 that adjusts the flow rate of the fuel gas flowing through the third stove gas supply path 64. It is disguised.

  A grill opening / closing valve 80 for opening and closing the grill gas supply passage 66 is interposed in the grill gas supply passage 66. The grill gas supply path 66 branches into a grill upper gas supply path 82 and a grill lower gas supply path 84. The grill upper gas supply path 82 supplies fuel gas to the grill upper burner 36. A grill upper gas flow adjustment valve 86 for adjusting the flow rate of the fuel gas flowing through the grill upper gas supply channel 82 is interposed in the grill upper gas supply channel 82. The grill lower gas supply path 84 is branched into a first grill lower gas supply path 88 and a second grill lower gas supply path 90. The first grill lower gas supply path 88 supplies fuel gas to the first grill lower burner 42. The second grill lower gas supply passage 90 supplies fuel gas to the second grill lower burner 44. A grill lower gas flow adjusting valve 91 for adjusting the flow rate of the fuel gas flowing through the grill lower gas supplying channel 84 is interposed in the grill lower gas supplying channel 84.

  The main on-off valve 58, the first stove on-off valve 68, the second stove on-off valve 72, the third stove on-off valve 76, and the grill on-off valve 80 are electromagnetic valves that move the valve body between an open position and a closed position by a solenoid. Yes, it can be called an electrically driven valve. The first stove flow rate adjusting valve 70, the second stove flow rate adjusting valve 74, the third stove flow rate adjusting valve 78, the grill upper flow rate adjusting valve 86, and the grill lower flow rate adjusting valve 91 adjust the opening degree of the valve element by a stepping motor. It is an electric valve and can be said to be an electrically driven valve.

  The gas combustion appliance 2 further includes a first stove switch 92 for switching heating on / off at the first stove 4, a second stove switch 94 for switching heating on / off at the second stove 6, and a third stove. 8 includes a third stove switch 96 for switching heating on / off at 8, a grill switch 98 for switching heating on / off in the grill cabinet 10, a controller 100, and a display operation unit 102. The first stove switch 92, the second stove switch 94, the third stove switch 96, and the grill switch 98 can be manually operated by the user. The controller 100 controls the operation of each component of the gas combustion appliance 2. The display operation unit 102 allows the user to manually input the setting contents regarding the operation of the gas combustion appliance 2, such as the heating capacity and heating time of the first stove 4, the second stove 6, the third stove 8, and the grill 10. In addition, the setting contents related to the operation of the gas combustion appliance 2 and the state of other gas combustion appliances 2 can be displayed to the user.

  A first battery 104 and a second battery 106 are attached to the gas combustion appliance 2. In the gas combustion appliance 2 of the present embodiment, the first battery 104 is obtained by connecting two dry batteries 104a and 104b in series, and the second battery 106 is obtained by connecting two dry batteries 106a and 106b in series. Is. Each component of the gas combustion appliance 2 operates with power supplied from the first battery 104 and the second battery 106.

  2, 3, and 4 show the configuration of the electrical system of the gas combustion appliance 2. As shown in FIGS. 2, 3, and 4, the controller 100 includes a combustion control microcomputer 108, a display control microcomputer 110, a driver IC 112, a step-down circuit 114, a step-up circuit 116, and the like. In FIG. 2, the first stove switch 92, the second stove switch 94, the third stove switch 96, and the grill switch 98 are collectively represented as a main switch 118. In FIG. 3, the first stove flame detector 16, the second stove flame detector 24, the third stove flame detector 32, the grill upper flame detector 40, the first grill lower flame detector 50, and the second grill lower flame detector. The first stove temperature detector 18, the second stove temperature detector 26, the third stove temperature detector 34, and the grill temperature detector 54 are collectively represented as a flame detector 120. The first stove igniter 14, the second stove igniter 22, the third stove igniter 30, the grill upper igniter 38, the first grill lower igniter 46, and the second grill lower igniter. 48 is collectively represented as an ignition device 124. The main on-off valve 58, the first stove on-off valve 68, the second stove on-off valve 72, the third stove on-off valve 76, and the grill on-off valve 80 are collectively referred to as the on-off valve. 12 The first stove flow rate adjustment valve 70, the second stove flow rate adjustment valve 74, the third stove flow rate adjustment valve 78, the grill upper flow rate adjustment valve 86, and the grill lower flow rate adjustment valve 91 are collectively represented as a flow rate adjustment valve. 128.

  As shown in FIG. 2, the first battery 104 is connected in parallel to the electrolytic capacitor 130. The positive electrode of the electrolytic capacitor 130 is connected to the first power supply potential V 1 of the controller 100, and the negative electrode of the electrolytic capacitor 130 is connected to the ground potential of the controller 100. Therefore, power is supplied from the first battery 104 to the first power supply potential V <b> 1 of the controller 100, and the potential matches the battery voltage of the first battery 104. The second battery 106 is connected to the electrolytic capacitor 132 in parallel. The positive electrode of the electrolytic capacitor 132 is connected to the second power supply potential V <b> 2 of the controller 100, and the negative electrode of the electrolytic capacitor 132 is connected to the ground potential of the controller 100. Accordingly, power is supplied from the second battery 106 to the second power supply potential V <b> 2 of the controller 100, and the potential matches the battery voltage of the second battery 106.

  The main switch 118 switches between conduction and non-conduction between the first contact 118a and the second contact 118b. The first contact 118a is connected to the first power supply potential V1. The second contact 118b is connected to the ground potential via resistors 134 and 136. The second contact 118b is connected to the input of the NOT circuit 138. In the NOT circuit 138, the negative power supply potential is connected to the ground potential. The output of the NOT circuit 138 is connected to the input of the NOT circuit 140 and the input of the NOT circuit 142. The NOT circuit 140 has a positive power supply potential connected to the first power supply potential V1. The output of the NOT circuit 140 is input to the step-down circuit 114. The step-down circuit 114 steps down the input voltage to a predetermined voltage (for example, 1.8 V) and outputs it. The step-down circuit 114 is, for example, a DC / DC converter. The output of the step-down circuit 114 is connected to the positive electrode of the capacitor 144. The positive electrode of the capacitor 144 is connected to the first step-down power supply potential V1A, and the negative electrode of the capacitor 144 is connected to the ground potential. Therefore, the first step-down power supply potential V1A of the controller 100 matches the output voltage of the step-down circuit 114. The NOT circuit 142 has a positive power supply potential connected to the first power supply potential V1. The output of the NOT circuit 142 is connected to the ground potential via resistors 146 and 148.

  The positive power supply input VCC of the combustion control microcomputer 108 is connected to the first step-down power supply potential V1A, and the negative power supply input VSS of the combustion control microcomputer 108 is connected to the ground potential. The battery voltage detection input of the combustion control microcomputer 108 is connected to a connection point between the resistor 146 and the resistor 148. The point-extinguishing SW input of the combustion control microcomputer 108 is connected to a connection point between the resistor 134 and the resistor 136.

  In the configuration of FIG. 2, when the main switch 118 switches from non-conduction to conduction, the potential of the second contact 118b matches the first power supply potential V1, and the NOT circuit 138 outputs the ground potential. Thus, the NOT circuit 140 outputs the first power supply potential V1, the step-down circuit 114 outputs the first step-down power supply potential V1A, and power is supplied to the combustion control microcomputer 108. At this time, the power supplied to the combustion control microcomputer 108 is supplied from the first power supply potential V1 through the NOT circuit 140, the step-down circuit 114, and the capacitor 144, that is, supplied from the first battery 104. Power. Further, when the main switch 118 is switched from non-conduction to conduction, the first power supply potential V1 (that is, the battery voltage of the first battery 104) is applied to the resistors 134 and 136 to the fire extinguishing SW input of the microcomputer 108 for combustion control. The potential divided by is input. Further, when the main switch 118 switches from non-conduction to conduction, the NOT circuit 142 outputs the first power supply potential V1, and the first power supply potential V1 (that is, the first power supply potential V1) is input to the battery voltage detection input of the combustion control microcomputer 108. The potential obtained by dividing the battery voltage of the battery 104 by the resistors 146 and 148 is input. The combustion control microcomputer 108 can detect the battery voltage of the first battery 104 based on the voltage value of the battery voltage detection input, whereby the combustion control microcomputer 108 can detect the remaining battery voltage of the first battery 104. The amount can be estimated. When the main switch 118 is switched from conduction to non-conduction, the ground potential is inputted to the point fire extinguishing SW input of the combustion control microcomputer 108. The combustion control microcomputer 108 can specify the operation content of the user to the main switch 118 from the point fire extinguishing SW input.

  As shown in FIG. 3, the flame detector 120 has one end connected to the operational amplifier 150 and the other end connected to the ground potential. The flame detector 120 of the present embodiment is a thermocouple. The operational amplifier 150 has a positive power supply potential connected to the first step-down power supply potential V1A and a negative power supply potential connected to the ground potential. The output of the operational amplifier 150 is connected to the ignition detection input of the combustion control microcomputer 108. The operational amplifier 150 outputs the first step-down power supply potential V1A when a flame is detected by the flame detector 120, and outputs a ground potential when no flame is detected by the flame detector 120. The combustion control microcomputer 108 can specify whether or not a flame is detected by the flame detector 120 based on the ignition detection input.

  One end of the temperature detector 122 is connected to the first step-down power supply potential V1A via the resistor 152, and the other end is connected to the ground potential. The temperature detector 122 of the present embodiment is a thermistor. A connection point between the temperature detector 122 and the resistor 152 is connected to a temperature detection input of the combustion control microcomputer 108. The combustion control microcomputer 108 can detect the resistance value of the temperature detector 122 based on the voltage value of the temperature detection input, whereby the combustion control microcomputer 108 detects the temperature detected by the temperature detector 122. Can be identified.

  The ignition device 124 has one end connected to the output of the NOT circuit 154 and the other end connected to the ground potential. When power is supplied, the ignition device 124 ignites by generating a spark by high-pressure discharge. The NOT circuit 154 has a positive power supply potential connected to the first power supply potential V1. The input of the NOT circuit 154 is connected to the output of the NOT circuit 156. In the NOT circuit 156, the negative power supply potential is connected to the ground potential. The input of the NOT circuit 156 is connected to the IG control output of the combustion control microcomputer 108. When the IG control output of the microcomputer 108 for combustion control outputs an H potential (for example, the first step-down power supply potential V1A), the NOT circuit 156 outputs the ground potential, and the NOT circuit 154 outputs the first power supply potential V1. Then, electric power is supplied to the ignition device 124, and the ignition device 124 performs an ignition operation.

  The on-off valve 126 is connected to the diode 158 in parallel. The diode 158 has an anode connected to the ground potential and a cathode connected to the output of the NOT circuit 162 via the resistor 160. The NOT circuit 162 has a positive power supply potential connected to the first step-down power supply potential V1A. The input of the NOT circuit 162 is connected to the SV control output of the combustion control microcomputer 108. When the SV control output of the microcomputer 108 for combustion control outputs an L potential (for example, ground potential), the NOT circuit 162 outputs the first step-down power supply potential V1A, whereby electric power is supplied to the on-off valve 126, and the on-off valve 126 performs an opening / closing operation.

  The flow rate adjustment valve 128 is connected to the driver IC 112. The driver IC 112 has a positive power supply input connected to the first power supply potential V1, and a negative power supply input connected to the ground potential. The control input of the driver IC 112 is connected to the thermal power control output of the combustion control microcomputer 108. The combustion control microcomputer 108 controls the operation of the flow rate adjustment valve 128 via the driver IC 112.

  As shown in FIG. 4, the microcomputer control output of the combustion control microcomputer 108 is connected to the input of the NOT circuit 164. The NOT circuit 164 has a negative power supply potential connected to the ground potential. The output of the NOT circuit 164 is connected to the input of the NOT circuit 166 and the input of the NOT circuit 171. The NOT circuit 166 has the positive power supply potential connected to the second power supply potential V2. The output of the NOT circuit 166 is input to the booster circuit 116. The booster circuit 116 boosts the input voltage to a predetermined voltage (for example, 3.3 V) and outputs the boosted voltage. The booster circuit 116 is, for example, a DC / DC converter. The output of the booster circuit 116 is connected to the positive electrode of the electrolytic capacitor 168. The positive electrode of the electrolytic capacitor 168 is connected to the second boosted power supply potential V2A, and the negative electrode of the electrolytic capacitor 168 is connected to the ground potential. Therefore, the second boosted power supply potential V2A of the controller 100 matches the output voltage of the booster circuit 116. A capacitor 170 is connected to the electrolytic capacitor 168 in parallel. The NOT circuit 171 has a positive power supply potential connected to the second power supply potential V2. The output of the NOT circuit 171 is connected to the ground potential via resistors 172 and 174.

  The positive power supply input VCC of the display control microcomputer 110 is connected to the second boosted power supply potential V2A, and the negative power supply input VSS of the display control microcomputer 110 is connected to the ground potential. The battery voltage detection input of the display control microcomputer 110 is connected to a connection point between the resistor 172 and the resistor 174.

  In the configuration of FIG. 4, when the microcomputer control output of the combustion control microcomputer 108 becomes H potential (for example, the first step-down power supply potential V1A), the NOT circuit 164 outputs the ground potential, and the NOT circuit 166 outputs the second power supply potential V2. The boosting circuit 116 outputs the second boosted power supply potential V2A, and power is supplied to the display control microcomputer 110. At this time, the power supplied to the display control microcomputer 110 is the power supplied from the second power supply potential V2 through the NOT circuit 166, the booster circuit 116, the electrolytic capacitor 168, and the capacitor 170, that is, the second battery. The electric power supplied from 106. In addition, when the microcomputer control output of the combustion control microcomputer 108 becomes the H potential (for example, the first step-down power supply potential V1A), the NOT circuit 171 outputs the second power supply potential V2, which is used as the battery voltage detection input of the display control microcomputer 110. A potential obtained by dividing the second power supply potential V2 (that is, the battery voltage of the second battery 106) by the resistors 172 and 174 is input. The display control microcomputer 110 can detect the battery voltage of the second battery 106 based on the voltage value of the battery voltage detection input, whereby the display control microcomputer 110 can detect the remaining battery voltage of the second battery 106. The amount can be estimated.

  The communication output between microcomputers of the combustion control microcomputer 108 is connected to the input of the NOT circuit 176. The NOT circuit 176 has a positive power supply potential connected to the first step-down power supply potential V1A. The output of the NOT circuit 176 is connected to the input of the NOT circuit 178. In the NOT circuit 178, the negative power supply potential is connected to the ground potential. The output of the NOT circuit 178 is connected to the second boosted power supply potential V2A via the resistor 180. The output of the NOT circuit 178 is connected to the inter-microcomputer communication input of the display control microcomputer 110. When the communication output between microcomputers of the microcomputer 108 for combustion control is L potential (for example, ground potential), the NOT circuit 176 outputs the first step-down power supply potential V1A and the NOT circuit 178 outputs the ground potential. An inter-microcomputer communication input 110 has an L potential (for example, a ground potential). When the communication output between microcomputers of the microcomputer 108 for combustion control is the H potential (for example, the first step-down power supply potential V1A), the output of the NOT circuit 176 becomes non-conductive with the first step-down power supply potential V1A, and the output of the NOT circuit 178 is the ground potential. Therefore, the inter-microcomputer communication input of the display control microcomputer 110 becomes the H potential (for example, the second boosted power supply potential V2A). Therefore, even when the combustion control microcomputer 108 and the display control microcomputer 110 are operated by different power supply voltages, data can be transmitted from the combustion control microcomputer 108 to the display control microcomputer 110.

  The communication output between microcomputers of the display control microcomputer 110 is connected to the input of the NOT circuit 182. The NOT circuit 182 has a positive power supply potential connected to the second boosted power supply potential V2A. The output of the NOT circuit 182 is connected to the input of the NOT circuit 184. In the NOT circuit 184, the negative power supply potential is connected to the ground potential. The output of the NOT circuit 184 is connected to the first step-down power supply potential V1A via the resistor 186. The output of the NOT circuit 184 is connected to the communication input between microcomputers of the combustion control microcomputer 108. When the communication output between microcomputers of the display control microcomputer 110 is L potential (for example, ground potential), the NOT circuit 182 outputs the second boosted power supply potential V2A and the NOT circuit 184 outputs the ground potential. An inter-microcomputer communication input 108 becomes an L potential (for example, a ground potential). When the inter-microcomputer communication output of the display control microcomputer 110 is an H potential (for example, the second boosted power supply potential V2A), the output of the NOT circuit 182 becomes non-conductive with the second boosted power supply potential V2A, and the output of the NOT circuit 184 is the ground potential. Therefore, the communication input between the microcomputers for combustion control 108 becomes the H potential (for example, the first step-down power supply potential V1A). Therefore, even when the combustion control microcomputer 108 and the display control microcomputer 110 are operated with different power supply voltages, data can be transmitted from the display control microcomputer 110 to the combustion control microcomputer 108.

  The display operation unit 102 includes a plurality of light emitting diodes provided at positions where the user can visually recognize, and a plurality of switches and a plurality of diodes provided at positions where the user can operate. In FIG. 4, a plurality of light emitting diodes are collectively denoted as a light emitting diode 188, and a plurality of switches and a plurality of diodes are collectively denoted as a switch 190 and a diode 192. The light emitting diode 188 can be said to be an electroluminescent element.

  The common output of the display control microcomputer 110 is connected to the input of the NOT circuit 194. The NOT circuit 194 has a positive power supply potential connected to the second boosted power supply potential V2A. The output of the NOT circuit 194 is connected to the anode of the light emitting diode 188 of the display operation unit 102 and the anode of the diode 192. The segment output of the display control microcomputer 110 is connected to the input of the NOT circuit 196. In the NOT circuit 196, the negative power supply potential is connected to the ground potential. The output of the NOT circuit 196 is connected to the cathode of the light emitting diode 188 via the resistor 198. The operation SW input of the display control microcomputer 110 is connected to the ground potential via the resistors 200 and 202. The switch 190 of the display operation unit 102 switches between conduction and non-conduction between the first contact 190a and the second contact 190b. A first contact 190 a of the switch 190 is connected to a connection location between the resistor 200 and the resistor 202 of the controller 100. The second contact 190 b of the switch 190 is connected to the cathode of the diode 192.

  When the common output of the display control microcomputer 110 becomes the L potential (for example, ground potential) and the segment output of the display control microcomputer 110 becomes the H potential (for example, the second boosted power supply potential V2A), the NOT circuit 194 performs the second boost. The power supply potential V2A is output, and the NOT circuit 196 outputs the ground potential. As a result, power is supplied to the light emitting diode 188 from the second boosted power supply potential V2A, and the light emitting diode 188 emits light.

  When the common output of the display control microcomputer 110 is L potential (for example, ground potential), when the switch 190 is switched from non-conduction to conduction, the operation SW input of the display control microcomputer 110 is set to the H potential (for example, the first potential). 2 boosted power supply potential V2A). From this state, when the switch 190 is switched from conduction to non-conduction, or when the common output of the display control microcomputer 110 becomes H potential (for example, the second boosted power supply potential V2A), the display control microcomputer 110 The operation SW input becomes L potential (for example, ground potential). The display control microcomputer 110 can specify the operation content of the user on the switch 190 from the operation SW input.

  In the gas combustion appliance 2 of the present embodiment, components such as the step-down circuit 114, the combustion control microcomputer 108, the operational amplifier 150, the ignition device 124, the on-off valve 126, the driver IC 112, the flow rate adjustment valve 128, and the like have the first power supply potential V1 or It operates with power supplied from the first step-down power supply potential V1A. That is, components such as the step-down circuit 114, the combustion control microcomputer 108, the operational amplifier 150, the ignition device 124, the on-off valve 126, the driver IC 112, and the flow rate adjustment valve 128 are operated by the power supplied from the first battery 104. . Further, in the gas combustion appliance 2 of the present embodiment, components such as the booster circuit 116, the display control microcomputer 110, the display operation unit 102, etc. are supplied with power from the second power supply potential V2 or the second boosted power supply potential V2A. It is working. That is, components such as the booster circuit 116, the display control microcomputer 110, and the display operation unit 102 are operated by power supplied from the second battery 106.

  Normally, components such as the ignition device 124 and the flow rate adjustment valve 128 require a large current during operation. For this reason, the battery voltage of the first battery 104 that supplies power to the ignition device 124 and the flow rate adjustment valve 128 temporarily decreases during the operation of these components. Therefore, for the first battery 104 that supplies power to the ignition device 124 and the flow rate adjustment valve 128, these components can be operated normally even if the battery voltage temporarily decreases due to the operation of these components. It is necessary to set the lower limit of the possible battery voltage as the end voltage. Usually, the end voltage set in this way is set to a voltage higher than the end voltage of the first battery 104 itself. On the other hand, the light emitting diode 188 of the display operation unit 102 requires a high voltage during operation, but the booster circuit 116 can be used to operate normally even when the battery voltage is low. For this reason, the end voltage of the second battery 106 that supplies power to the light emitting diode 188 of the display operation unit 102 can be set to the same voltage as the end voltage of the second battery 106 itself.

  If the components such as the ignition device 124 and the flow rate adjusting valve 128 and the components such as the light emitting diode 188 of the display operation unit 102 are operated with the power supplied from the same battery, the end voltage of the battery is set to the ignition device. It must be set in consideration of a temporary decrease in battery voltage due to driving of the valve 124 and the flow rate adjustment valve 128. In this case, even if the battery voltage has not yet decreased to the end voltage of the battery itself and the light emitting diode 188 of the display operation unit 102 can be operated normally, the user is prompted to replace the battery. It will be. Further, when the components such as the ignition device 124 and the flow rate adjustment valve 128 and the components such as the light emitting diode 188 of the display operation unit 102 are operated by the power supplied from the same battery, the ignition device 124 and the flow rate adjustment valve 128 are used. It is necessary to boost the battery voltage temporarily lowered by driving such as the voltage booster circuit 116 to a voltage necessary for the operation of the light emitting diode 188 of the display operation unit 102. Normally, when the boosting ratio of the booster circuit 116 is increased, the current consumption in the booster circuit 116 is greatly increased, and battery consumption is accelerated.

  In the gas combustion appliance 2 of the present embodiment, the step-down circuit 114, the combustion control microcomputer 108, the operational amplifier 150, the ignition device 124, the on-off valve 126, the driver IC 112, the flow rate adjustment valve 128, and other components, the step-up circuit 116, and display control Components such as the microcomputer 110 and the display operation unit 102 are configured to be operated by electric power supplied from separate batteries. With such a configuration, the first battery 104 that supplies power to components such as the step-down circuit 114, the combustion control microcomputer 108, the operational amplifier 150, the ignition device 124, the on-off valve 126, the driver IC 112, and the flow rate adjustment valve 128. And the end voltage of the second battery 106 that supplies power to components such as the booster circuit 116, the display control microcomputer 110, and the display operation unit 102 can be set separately. Accordingly, it is possible to prevent the user from urging the user to replace the battery even though the first battery 104 and the second battery 106 are still usable in each application. Further, according to the gas combustion appliance 2 of the present embodiment, the battery voltage temporarily reduced by driving components such as the ignition device 124 and the flow rate adjustment valve 128 is necessary for the operation of the light emitting diode 188 of the display operation unit 102. Since it is not necessary to boost the voltage, it is possible to suppress battery consumption. According to the gas combustion appliance 2 of the present embodiment, it is possible to extend the life of the first battery 104 and the second battery 106.

  In the gas combustion appliance 2 of the present embodiment, the light emitting diode 188 of the display operation unit 102 includes a first light emitting diode that prompts replacement of the battery of the first battery 104 and a second light emitting diode that is separate from the first light emitting diode. The second light emitting diode that prompts the user to replace the battery 106 is provided, and it is possible to separately notify the user of the battery replacement timing of each of the first battery 104 and the second battery 106. With this configuration, user convenience can be improved.

  In the gas combustion appliance 2 of the present embodiment, when the operation of the display operation unit 102 is not necessary, only the first battery 104 is attached to the gas combustion appliance 2 as shown in FIG. It is good also as a structure which does not attach 106 to the gas combustion appliance 2. FIG. In this case, power is not supplied to the components such as the booster circuit 116, the display control microcomputer 110, and the display operation unit 102, and these components do not operate, but the step-down circuit 114, the combustion control microcomputer 108, the operational amplifier 150, the ignition Since power is supplied to components such as the device 124, the on-off valve 126, the driver IC 112, and the flow rate adjustment valve 128, the first stove 4, the second stove 6, the third stove 8, and the grill cabinet 10 in the gas combustion appliance 2. Cooking using can be performed.

  Alternatively, as shown in FIG. 6, only the first battery 104 is attached to the gas combustion appliance 2, and the second battery 106 is not attached to the gas combustion appliance 2. The power supply potential V2 may be connected to the first power supply potential V1. In this case, power is also supplied from the first battery 104 to components such as the booster circuit 116, the display control microcomputer 110, and the display operation unit 102. The user can appropriately select whether the gas combustion appliance 2 of the present embodiment has the configuration of FIG. 2, the configuration of FIG. 5, or the configuration of FIG.

  As shown in FIG. 2, when both the first battery 104 and the second battery 106 are attached, the combustion control microcomputer 108 shown in FIG. 4 includes a booster circuit 116, a display control microcomputer 110, and a display operation unit 102. When the operation of the switch 190 is not performed for a first predetermined time (for example, 30 seconds) in a state where the supply of electric power to the device is permitted, the booster circuit 116, the display control microcomputer 110, and the display operation unit Supply of power to may be prohibited. Accordingly, it is possible to suppress the excessive power consumption by continuously turning on the light emitting diode 188 even though the user does not operate the switch 190. The combustion control microcomputer 108 prohibits the supply of power to the booster circuit 116, the display control microcomputer 110, and the display operation unit 102, and when a second predetermined time (for example, 30 seconds) has elapsed, The power supply to the booster circuit 116, the display control microcomputer 110, and the display operation unit 102 may be permitted again.

  As shown in FIG. 7, the display operation unit 102 is provided with a switch 206 that detects the same operation by the user corresponding to the switch 190, so that the combustion control microcomputer 108 can detect an operation input to the switch 206. It is good. In the configuration illustrated in FIG. 7, the display operation unit 102 further includes a switch 206 and a diode 208 corresponding to the switch 190 and the diode 192. The switch 206 switches between conduction and non-conduction between the first contact 206a and the second contact 206b. The common output of the combustion control microcomputer 108 is connected to the input of the NOT circuit 210. The NOT circuit 210 has a positive power supply potential connected to the first step-down power supply potential V1A. The output of the NOT circuit 210 is connected to the anode of the diode 208 of the display operation unit 102. The operation SW input of the combustion control microcomputer 108 is connected to the ground potential via resistors 212 and 214. A first contact 206 a of the switch 206 is connected to a connection point between the resistor 212 and the resistor 214 of the controller 100. The second contact 206 b of the switch 206 is connected to the cathode of the diode 208.

  Also in the configuration shown in FIG. 7, as in the configuration shown in FIG. 4, the combustion control microcomputer 108 permits the power supply to the booster circuit 116, the display control microcomputer 110, and the display operation unit 102. When the switch 190 is not operated for a first predetermined time (for example, 30 seconds), power supply to the booster circuit 116, the display control microcomputer 110, and the display operation unit 102 may be prohibited. Accordingly, it is possible to suppress the excessive power consumption by continuously turning on the light emitting diode 188 even though the user does not operate the switch 190. Further, the combustion control microcomputer 108 prohibits the supply of power to the booster circuit 116, the display control microcomputer 110, and the display operation unit 102, and when a second predetermined time (for example, 30 seconds) has elapsed, The power supply to the booster circuit 116, the display control microcomputer 110, and the display operation unit 102 may be permitted again. Further, the combustion control microcomputer 108 detects the operation input to the switch 206 when the power supply to the boost circuit 116, the display control microcomputer 110, and the display operation unit 102 is prohibited. The power supply to the display control microcomputer 110 and the display operation unit 102 may be permitted again. With such a configuration, when the user resumes the operation, the light emitting diode 188 can promptly emit light.

  In the above embodiment, components such as the step-down circuit 114, the combustion control microcomputer 108, the operational amplifier 150, the ignition device 124, the on-off valve 126, the driver IC 112, and the flow rate adjustment valve 128 are operated by the power supplied from the first battery 104. In addition, components such as the booster circuit 116, the display control microcomputer 110, and the display operation unit 102 are operated by the power supplied from the second battery 106. In contrast, one or more of the components such as the operational amplifier 150, the ignition device 124, and the on-off valve 126 may be operated by electric power supplied from the second battery 106. Alternatively, the display control microcomputer 110 may be operated by power supplied from the first battery 104. In any case, since the flow rate adjustment valve 128 and the light emitting diode 188 are configured to operate with electric power supplied from different batteries, the life of the first battery 104 and the second battery 106 can be extended. Can do.

  In the above embodiment, the gas stove including the first stove 4, the second stove 6, the third stove 8, and the grill 10 is described as an example of the gas combustion appliance 2, but the technology disclosed in the present specification is as follows. It can also be applied to other gas burning appliances.

  In the above embodiment, the case where two dry batteries 104a and 104b are connected in series has been described as the first battery 104. However, as the first battery 104, a primary battery other than the dry battery may be used. A secondary battery may be used. Similarly, in the above embodiment, the case where the two batteries 106a and 106b connected in series are used as the second battery 106, but a primary battery other than the dry battery is used as the second battery 106. Alternatively, a secondary battery may be used.

  Each embodiment has been described in detail above, but these are merely examples and do not limit the scope of the claims. The technology described in the claims includes various modifications and changes of the specific examples illustrated above.

  The technical elements described in this specification or the drawings exhibit technical usefulness alone or in various combinations, and are not limited to the combinations described in the claims at the time of filing. In addition, the technology exemplified in this specification or the drawings achieves a plurality of objects at the same time, and has technical utility by achieving one of the objects.

2: Gas burning appliance 4: 1st stove 6: 2nd stove 8: 3rd stove 10: Grill box 12: 1st stove burner 14: 1st stove ignition device 16: 1st stove flame detector 18: 1st stove Temperature detector 20: second stove burner 22: second stove ignition device 24: second stove flame detector 26: second stove temperature detector 28: third stove burner 30: third stove ignition device 32: third stove Flame detector 34: Third stove temperature detector 36: Grill upper burner 38: Grill upper ignition device 40: Grill upper flame detector 42: First grill lower burner 44: Second grill lower burner 46: First grill lower ignition Device 48: Second grill lower ignition device 50: First grill lower flame detector 52: Second grill lower flame detector 54: Grill temperature detector 56: Gas supply path 58: Main on-off valve 0: first stove gas supply path 62: second stove gas supply path 64: third stove gas supply path 66: grill gas supply path 68: first stove opening / closing valve 70: first stove flow rate adjusting valve 72: second stove opening / closing valve 74: Second stove flow rate adjusting valve 76: Third stove open / close valve 78: Third stove flow rate adjusting valve 80: Grill open / close valve 82: Grill upper gas supply passage 84: Grill lower gas supply passage 86: Grill upper flow control valve 88: First 1 grill lower gas supply path 90: second grill lower gas supply path 91: grill lower flow rate adjusting valve 92: first stove switch 94: second stove switch 96: third stove switch 98: grill switch 100: controller 102: display Operation unit 104: first battery 104a: dry battery 104b: dry battery 106: second battery 106a: dry battery 106b Batteries 108: combustion control microcomputer 110: display control microcomputer 112: Driver IC
114: Step-down circuit 116: Step-up circuit 118: Main switch 118a: First contact 118b: Second contact 120: Flame detector 122: Temperature detector 124: Ignition device 126: On-off valve 128: Flow control valve 130: Electrolytic capacitor 132 : Electrolytic capacitor 134: Resistor 136: Resistor 138: NOT circuit 140: NOT circuit 142: NOT circuit 144: Capacitor 146: Resistor 148: Resistor 150: Operational amplifier 152: Resistor 154: NOT circuit 158: NOT circuit 158 : Diode 160: Resistor 162: NOT circuit 164: NOT circuit 166: NOT circuit 168: Electrolytic capacitor 170: Capacitor 171: NOT circuit 172: Resistor 174: Resistor 176: NOT circuit 180: Resistor 182 NOT circuit 184: NOT circuit 186: resistor 188: light emitting diode 190: switch 190a: first contact 190b: second contact 192: diode 194: NOT circuit 196: NOT circuit 198: resistor 200: resistor 202: resistor 204: Harness 206: Switch 206a: First contact 206b: Second contact 208: Diode 210: NOT circuit 212: Resistor 214: Resistor

Claims (6)

A gas burning appliance,
An electrically driven valve provided in the flow path of the fuel gas;
An electroluminescent device provided to be visible to the user;
A controller,
A first battery;
A second battery, separate from the first battery,
An electrically driven valve is operated by power supplied from the first battery;
A gas combustion appliance in which the electroluminescent element is operated by electric power supplied from the second battery. The controller includes a combustion control microcomputer that controls the operation of the electrically driven valve, and a display control microcomputer that controls the operation of the electrical light-emitting element, separate from the combustion control microcomputer.
The gas combustion appliance according to claim 1, wherein the combustion control microcomputer is operated by electric power supplied from the first battery, and the display control microcomputer is operated by electric power supplied from the second battery. A switch operated by the user,
The combustion control microcomputer is configured to permit or prohibit power supply from the second battery to the electric light emitting element and the display control microcomputer,
When the combustion control microcomputer permits the power supply from the second battery to the electric light emitting element and the display control microcomputer, the second operation is performed when the switch is not operated for the first predetermined time. The gas combustion appliance according to claim 2, wherein power supply from the battery to the electric light emitting element and the display control microcomputer is prohibited.   When the combustion control microcomputer prohibits the power supply to the electric light emitting element and the display control microcomputer from the second battery and the second predetermined time has elapsed, the electric light emission from the second battery The gas combustion appliance according to claim 3, wherein power supply to the element and the display control microcomputer is permitted.   When the combustion control microcomputer prohibits the power supply from the second battery to the electroluminescent element and the display control microcomputer, when the user detects an operation on the switch, The gas combustion appliance according to claim 3 or 4, wherein power supply to the electric light emitting element and the display control microcomputer is permitted. It further includes an ignition device that ignites by discharge,
The gas combustion appliance according to any one of claims 1 to 5, wherein the ignition device is operated by electric power supplied from the first battery.

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