JP2019039581A - Gas cooking stove - Google Patents

Abstract

To configure a gas cooking stove such that when a gas burner which is not used for a long time begins to be used again, it is easy to prevent an igniter from performing a discharging operation in a deficient gas supply state.SOLUTION: A gas cooking stove 1 has: gas burners 51, 52 and 53; igniters; switches (igniting operation part) with which an igniting operation is performed from outside; and a control circuit which allows a corresponding igniter to generate a spark discharge when the igniting operation is performed with the switch. The control circuit sets, when the gas burners 51, 52 and 53 enter a predetermined "long-time unused state", a time from when the igniting operation is performed with a switch (igniting operation part) until when the corresponding igniter generates a spark discharge longer than the time not in the "long-time unused state".SELECTED DRAWING: Figure 1

Description

  The present invention relates to a gas stove.

  In a gas stove such as a built-in stove, when a user performs an ignition operation, a spark discharge is performed by an igniter, and the gas supplied to the gas burner is ignited by the spark discharge. As a technique related to this type of gas stove, a technique such as Patent Document 1 is provided. The technique of Patent Document 1 further includes a concept of controlling the ignition timing of the igniter.

JP 2013-53778 A

  By the way, in this type of gas stove, a gas pipe for guiding gas to the gas burner is accommodated in the housing, and this gas pipe is in an open state that allows gas supply and a cut-off state that blocks gas supply. Switching valve bodies are provided at a plurality of locations. For example, in a gas stove having a configuration in which an original solenoid valve is provided at a position upstream of the gas pipe and one or more on / off valves are provided in a path from the original solenoid valve to the gas burner, the original solenoid valve is in an ignition state. In addition, the gas burner is in a state where gas is supplied by switching both the open and close valves to the open state, and when the fire is extinguished, the gas solenoid is not supplied by switching both the original solenoid valve and the open / close valve to the shut-off state. be able to.

  In the gas stove configured as described above, when the user performs a fire extinguishing operation, the plurality of valve bodies provided in the gas pipe are operated to be switched to the shut-off state. Since the body closes suddenly, a small amount of gas remains in the path between the valve bodies. Since gas remains in the path between the valve bodies for a certain period of time after the fire extinguishing state, when the next ignition operation is performed in this state, the gas remaining in the path between the valve bodies is early. Will be released from the gas burner. That is, in this case, since the gas remaining in the position near the gas burner is quickly released, even if the time from when the ignition operation is performed by the user until the discharge is started by the igniter is short, the gas supply is in time for the discharge. The possibility increases.

  However, if the elapsed time after the gas burner is extinguished (that is, the elapsed time after the gas burner is not used) becomes too long, the gas remaining in the path between the valve bodies immediately after extinguishing It will come out. In this way, if the ignition operation is performed in a state where no gas remains in the path between the valve bodies, the gas staying in the upstream path (the gas blocked by the upstream valve body) must be guided. Therefore, it takes time until a sufficient gas is supplied to the gas burner. In this case, if the time from when the ignition operation is performed by the user until the start of discharge by the igniter is short, there is a possibility that useless discharge may be performed with insufficient gas supply.

  The present invention has been made to solve at least one of the above-described problems, and when the gas burner is not used for a long time, the discharge operation of the igniter with insufficient gas supply at the time of resuming use. It is an object to realize a configuration that can easily prevent the occurrence of the problem.

The gas stove which is one of the present invention is a gas burner,
An igniter that performs spark discharge and ignites the gas burner;
An ignition operation unit that performs an ignition operation from the outside;
A control circuit for causing the igniter to perform a spark discharge when the ignition operation is performed on the ignition operation unit;
Have
When the gas burner has not been used for a predetermined long period of time, the control circuit determines a time from when the ignition operation is performed to the ignition operation unit to when a spark discharge is performed by the igniter. Make it longer than when not in use for a long time.

The said gas stove can delay the timing which performs a spark discharge with an igniter when it becomes a non-use state for a long time rather than when it is not a non-use state for a long time. Therefore, when an ignition operation is performed after a long period of non-use, even if the time until a sufficient gas is supplied to the gas burner is delayed, the spark discharge is performed at the igniter. Is more likely to have sufficient gas present.
Therefore, when the gas burner is not used for a long time, it is easy to prevent the igniter from being discharged in a state where the gas supply is insufficient when resuming use.

1 is a perspective view schematically illustrating a gas stove of Example 1. FIG. It is explanatory drawing which shows notionally the gas supply path etc. to each gas burner of the gas stove of Example 1. FIG. 3 is a block diagram schematically illustrating an electrical configuration of a gas stove according to Embodiment 1. FIG.

The preferable form of this invention is illustrated below.
In the gas stove, the “predetermined state of not being used for a long period of time” may be “a state where a certain time or more has passed with the gas burner in a fire extinguishing state”.
When the gas burner is in a fire extinguishing state for a certain period of time, the possibility that gas will remain in the path between the valve bodies is lower than when the gas burner is not, and sufficient gas is supplied to the gas burner. There is a higher possibility that the time until the state will be delayed. Therefore, according to this gas burner, it is more effective that the discharge operation of the igniter is performed in a state where the gas supply is insufficient when the use is resumed after “the gas burner is in a fire extinguished state for a certain time or more”. It becomes easy to prevent.

<Example 1>
Embodiment 1 will be described below with reference to the drawings.
The gas stove 1 shown in FIG. 1 is configured as a built-in stove that can heat cooking utensils such as cooking pots. The gas stove 1 is provided with a right stove portion 4A and a left stove portion 4B, respectively, so as to be exposed from a top plate 2 (top plate) constituting the upper surface of the stove main body 1A. A small stove portion 4C is provided between 4B and rearward. Below the top plate 2, a grill 3 is provided in the vicinity of the center inside the stove body 1A. The grill 3 is provided with a grill cabinet that accommodates an object to be cooked and cooks it with a grill burner (gas burner 54: FIG. 2). This grill cabinet is opened and closed by a grill door 3B provided on the front surface of the stove body 1A. It is possible.

  As shown in FIG. 1, the gas burners 51, 52, 53, and 54 shown in FIG. 2 are provided on the right and left stove parts 4 </ b> A, 4 </ b> B, 4 </ b> C, and the grill 3, respectively. As shown in FIG. 2, a plurality of branch supply paths 61, 62, 63, 64 are connected to the plurality of gas burners 51, 52, 53, 54, respectively, and these branch supply paths 61, 62, 63, 64 are common. The structure branches off from the supply path 60. The common supply path 60 is a common gas path to the gas burners 51, 52, 53, 54, and the plurality of branch supply paths 61, 62, 63, 64 branch from the common supply path 60 and the gas burners 51, 52. , 53, 54, and a supply path arranged to guide the gas. The common supply path 60 is provided with an original electromagnetic valve N1 that opens and closes the common supply path 60. The original solenoid valve N1 is configured as a known solenoid valve, for example, and shuts off the gas supply in the common supply path 60 from the open state that allows the gas supply in the common supply path 60 in accordance with a control signal from the control circuit 10. It can be switched to the closed state. A branch supply path 61 that branches from the common supply path 60 and continues to the gas burner 51 includes an electromagnetic valve (safety valve) 51G that can open and close the branch supply path 61, a closing valve 51F that can open and close the branch supply path 61, and a gas burner 51. And a thermal power adjustment valve 51E capable of adjusting the gas supply amount to. A branch supply path 62 branched from the common supply path 60 and continuing to the gas burner 52 includes an electromagnetic valve (safety valve) 52G capable of opening and closing the branch supply path 62, a closing valve 52F capable of opening and closing the branch supply path 62, and a gas burner 52. And a heating power adjustment valve 52E capable of adjusting the gas supply amount to the. A branch supply path 63 branched from the common supply path 60 and continuing to the gas burner 53 includes an electromagnetic valve (safety valve) 53G capable of opening and closing the branch supply path 63, a closing valve 53F capable of opening and closing the branch supply path 63, and a gas burner 53. And a thermal power adjustment valve 53E capable of adjusting the gas supply amount to the.

  The gas burner 54 (grill burner) of the grill 3 includes an upper burner 54A disposed on the upper side in the grill 3, and a lower burner 54B disposed on the lower side of the upper burner 54A in the grill 3. From the branch supply path 64 branched from the common supply path 60 and leading the gas to the gas burner 54, from the first supply path 65A branched from the branch supply path 64 and guided to the upper burner 54A, and from the branch supply path 64 A second supply path 65B that branches and guides gas to the lower burner 54B is connected. The branch supply path 64 is provided with an electromagnetic valve (safety valve) 54G and a stop valve 54F capable of opening and closing the branch supply path 64, and the first supply path 65A is provided with a plurality of electromagnetic valves 54H and 54J. An electromagnetic valve 54K is provided in the supply path 65B.

  As shown in FIG. 1, four rotation operation parts 6A, 6B, 6C, and 6D are provided so as to correspond to the right and left stove parts 4A, 4B, 4C, and the grill 3, respectively. . These rotation operation units 6A, 6B, 6C, and 6D correspond to an example of an ignition operation unit, and the first rotation operation unit 6A and the fourth rotation operation unit 6D constitute a part of the front surface portion of the housing unit. The second rotation operation unit 6B and the third rotation operation unit 6C are provided to be exposed from the right front panel 7A, and are exposed from the left front panel 7B constituting a part of the front surface portion of the housing unit. It is provided as follows.

  The first rotation operation unit 6A performs ignition, extinguishing, and heating power adjustment of the right cooking unit 4A, is configured to be capable of pressing operation, and is configured to be capable of rotation operation. For example, at the time of fire extinguishing, as shown by the solid line in FIG. 1, the front surface portion of the rotational operation portion 6 </ b> A configured in a cylindrical shape is retracted backward. Then, by pressing the front surface portion from this state, the right cooking portion 4A is ignited, and as shown by the two-dot chain line 6A ′, the rotation operation portion 6A is moved forward so that the front surface portion is at the front position from the time of fire extinguishing. It is designed to protrude. By rotating the rotation operation unit 6A in one rotation direction in such a protruding state, the heating power of the corresponding right cooking unit 4A can be increased, and conversely, the rotation operation unit 6A can be rotated by the other rotation. By rotating in the direction, it is possible to reduce the heating power of the corresponding right stove 4A. Further, when the front portion is pressed in the protruding state indicated by the two-dot chain line 6A ', the retracted state indicated by the solid line is restored, and at this time, the right stove portion 4A is extinguished. The rotation operation unit 6B performs ignition, extinguishing, and heating power adjustment of the left cooking unit 4B, and the rotation operation unit 6C performs ignition, extinguishing, and heating power adjustment of the small cooking unit 4C. These differ only in object, and the basic structure and function are the same as those of the rotation operation unit 6A.

  The 4th rotation operation part 6D performs ignition of the grill 3, fire extinguishing, and thermal power adjustment, is comprised so that pressing operation is possible, and is comprised so that rotation operation is possible. For example, at the time of fire extinguishing, as shown by the solid line in FIG. 1, the front surface portion of the rotation operation portion 6 </ b> D configured in a cylindrical shape is retracted backward. When the front surface portion of the rotation operation unit 6D is pressed in this retracted state, the control circuit 70 detects the pressing and ignites the gas burner 54. Further, when the front surface portion of the rotation operation portion 6D is pressed in the retracted state, the rotation operation portion 6D protrudes (front surface) so that the front surface portion is in a forward position from the time of fire extinguishing as indicated by a two-dot chain line 6D ′. It is displaced to a state of protruding forward from the panel 7A. When a rotation operation is performed on the rotation operation unit 6D in such a protruding state, the control circuit 10 causes the solenoid valve so that the heating power state of the gas burner 54 corresponds to the rotation angle of the rotation operation unit 6D. To control. Specifically, a detection unit (not shown) that detects the rotation angle of the rotation operation unit 6D is provided, and the detection unit is configured such that the rotation angle of the rotation operation unit 6D is the first angle range, the second angle range, It can be detected whether the angle range corresponds to 3 or the fourth angle range. The control circuit 10 can control the opening / closing of the electromagnetic valves 54H, 54J, 54K, and opens / closes the electromagnetic valves 54H, 54J, 54K according to the rotation angle of the rotation operation unit 6D detected by the detection unit. Define combinations.

  As shown in FIG. 2, a first supply path 65A is configured as a main path for guiding gas to the upper burner 54A, and the path of the electromagnetic valve 54J is bypassed so as to bypass the electromagnetic valve 54J provided in the first supply path 65A. A bypass path 66A, which is a parallel path, is provided. When the electromagnetic valve 54J is closed with the electromagnetic valve 54H open, the gas guided by the branch supply path 64 is supplied to the upper burner 54A through the bypass path 66A. In this case, the heating power of the upper burner 54A is relatively weak (weak state). When both the solenoid valves 54H and 54J are open, the gas guided by the branch supply path 64 is supplied to the upper burner 54A through the first supply path 65A or the bypass path 66A. In this case, the heating power of the upper burner 54A is relatively strong (strong state). In addition, a second supply path 65B is configured as a main path for guiding gas to the lower burner 54B, and a path parallel to the path of the electromagnetic valve 54K so as to bypass the electromagnetic valve 54K provided in the second supply path 65B. A certain bypass path 66B is provided. When the electromagnetic valve 54K is closed, the gas guided by the branch supply path 64 is supplied to the lower burner 54B through the bypass path 66B. In this case, the thermal power in the lower burner 54B is relatively weak (weak state). When the electromagnetic valve 54K is open, the gas guided by the branch supply path 64 is supplied to the lower burner 54B through the second supply path 65B or the bypass path 66B. In this case, the thermal power in the lower burner 54B is relatively strong (strong state).

  In the example of FIG. 1, each of the rotation operation units 6A, 6B, 6C, and 6D is switched between a retracted position and a protruding position every time the user presses. As shown in the electrical configuration of FIG. 3, switches 30A, 30B, 30C, and 30D are provided so as to correspond to the rotation operation units 6A, 6B, 6C, and 6D, respectively, and the switches 30A, 30B, 30C, and 30D are provided. Are respectively provided with ignition signal input circuits 40A, 40B, 40C, and 40D. The switches 30A, 30B, 30C, and 30D all function as ignition switches. In any of the rotation operation units 6A, 6B, 6C, and 6D, the rotation operation unit is operated to the retracted position (fire extinguishing position). Accordingly, the corresponding switch is turned off, and an off signal is given to the control circuit 10 from the ignition signal input circuit corresponding to this switch. Further, in response to the rotation operation unit being operated to the protruding position (ignition position), the corresponding switch is turned on, and an on signal is given to the control circuit 10 from the ignition signal input circuit corresponding to this switch. For example, as shown in FIG. 1, when the rotation operation unit 6D is in the retracted position, the switch 30D is turned off. At this time, the ignition signal input circuit 40D sends a signal (off signal) indicating the off state to the control circuit 10. input. Further, when the rotation operation unit 6D is in the protruding position as indicated by a two-dot chain line 6D ′ in FIG. 1, the switch 30D is turned on. At this time, the ignition signal input circuit 40D sends a signal indicating the on state to the control circuit 10 (on Signal).

  Further, displacement detectors 32A, 32B, 32C, and 32D are provided so as to correspond to the rotation operation units 6A, 6B, 6C, and 6D, respectively, and thermal power is provided so as to correspond to the displacement detectors 32A, 32B, 32C, and 32D, respectively. Signal input circuits 42A, 42B, 42C, and 42D are provided, respectively. In any of the rotation operation units 6A, 6B, 6C, and 6D, the displacement detection unit detects the displacement (rotation position) of the rotation operation unit, and the displacement detection unit detects from the thermal power signal input circuit corresponding to the displacement detection unit. A signal corresponding to the detected displacement (rotational position) is given to the control circuit 10. For example, the displacement detection unit 32D detects the displacement (rotation position) of the rotation operation unit 6D, and the displacement detection unit 32D detects the control circuit 10 from the thermal power signal input circuit 42D corresponding to the displacement detection unit 32D. A signal corresponding to the displacement (rotation position) is given.

  As shown in FIGS. 2 and 3, thermocouples 51C, 52C, 53C, 54C, 54D are provided adjacent to the gas burners 51, 52, 53, 54A, 54B, respectively, and the thermocouples 51C, 52C, Temperature signal input circuits 44A, 44B, 44C, 44D, and 44E are provided corresponding to 53C, 54C, and 54D, respectively. Each of the temperature signal input circuits 44A, 44B, 44C, 44D, and 44E inputs a signal corresponding to the electromotive force generated by the corresponding thermocouple to the control circuit 10. When the electromotive force of any one of the thermocouples 51C, 52C, 53C, 54C, and 54D is equal to or greater than a predetermined first threshold value (ignition threshold value), the control circuit 10 ignites the gas burner corresponding to that thermocouple. When it is below a predetermined second threshold (fire extinguishing threshold), it is determined that the gas burner corresponding to the thermocouple is extinguished.

  An igniter 26A, 26B, 26C, 26D is provided adjacent to each of the gas burners 51, 52, 53, 54, and igniter circuits 46A, 46B, 46C, 46D is provided. For example, an igniter 26A is provided corresponding to the gas burner 51, and the igniter circuit 46A drives the igniter 26A according to the ignition operation of the switch 30A, and discharges sparks by the igniter 26A to ignite the gas burner 51. Similarly, an igniter 26D is provided corresponding to the gas burner 54 (grill burner), and the igniter circuit 46D drives the igniter 26D in response to the ignition operation of the switch 30D, and discharges sparks by the igniter 26D to cause the gas burner 54 (grill burner). Ignition. The driving of the igniters 26B and 26C corresponding to the gas burners 52 and 53 is the same.

  The control circuit 10 is configured as a microcomputer, for example, and includes a CPU 10A, a ROM 10B, a RAM 10C, and the like as shown in FIG. 3, and further includes a timer, an I / O interface, and the like (not shown). Although not shown, a nonvolatile memory may be provided inside or outside the control circuit 10. The control circuit 10 includes the above-described solenoid valves (not shown in FIG. 3), igniters 26A, 26B, 26C, and 26D, a plurality of display devices 21, 22, 23, 24, a buzzer device 12, an audio device 14, and the like. It can be controlled. As shown in FIG. 1, the display devices 21, 22, 23, and 24 are provided corresponding to the rotation operation units 6 </ b> A, 6 </ b> B, 6 </ b> C, and 6 </ b> D, respectively. Each of the display devices 21, 22, 23, and 24 includes a plurality of display units such as LEDs, and also includes a drive circuit that drives the display units. For example, the display device 24 corresponding to the rotation operation unit 6D includes six display units provided near the upper side of the rotation operation unit 6D and a drive circuit that drives these display units. The buzzer device 12 is configured as a known buzzer device such as a piezoelectric buzzer device, and performs a buzzer sounding operation when a drive signal is given from the control circuit 10, for example. The sound device 14 is a device that emits sound such as a melody or a message. For example, the sound device 14 includes a speaker or a drive circuit that gives a sound signal to the speaker, and operates to emit sound corresponding to an instruction from the control circuit 10. To do. Further, a power supply circuit 48 is provided so as to supply electric power to various electric components including the above-described electric components. The power supply circuit 48 has a function of receiving a power supply from the two dry batteries 49 accommodated in the battery box and generating a predetermined power supply voltage. The power supply voltage generated by the power supply circuit 48 passes through a path (not shown). To be supplied to various electrical components.

Next, ignition control performed by the control circuit 10 will be described.
When an ignition operation is performed on any of the rotation operation units 6A, 6B, 6C, and 6D (an operation for pressing the front surface when in the retracted position), the rotation operation unit on which the ignition operation has been performed is in the protruding position. Displaced and held in the protruding position. Of the switches 30A, 30B, 30C, and 30D, the switch corresponding to the rotation operation unit that has been ignited is switched from the off state to the on state in response to the rotation operation unit being displaced to the protruding position. The signal input to the control circuit 10 from the ignition signal input circuit corresponding to is switched from the off signal to the on signal. Then, when the signal input from the ignition signal input circuit to the control circuit 10 is switched from the off signal to the on signal in this way, the control circuit 10 detects when the signal input from the ignition signal input circuit is switched to the on signal ( Or, immediately after switching, it is determined whether or not a “predetermined non-use state for a long time”. Specifically, when the signal input from the ignition signal input circuit is switched from the off signal to the on signal, “a state in which a certain time has elapsed since all of the gas burners 51, 52, 53, and 54 are in the fire extinguishing state” If it is not applicable (i.e., “the signal input from the ignition signal input circuit after a certain time has elapsed since all of the gas burners 51, 52, 53, 54 have been extinguished) When not switching from the off signal to the on signal), the igniter corresponding to the ignition operation (that is, the igniter arranged close to the gas burner to be ignited by the ignition operation) is discharged at the first timing. Let The first timing is a timing at which a predetermined time (first time) has elapsed since the ignition operation was performed. On the other hand, if applicable, (that is, “the signal input from the ignition signal input circuit changes from the off signal to the on signal in a state in which a certain time has elapsed since all of the gas burners 51, 52, 53, and 54 have been extinguished. In the case of switching ”), the igniter corresponding to the ignition operation is discharged at a second timing that is later than the first timing. The second timing is a timing at which a second time (a certain time longer than the first time) has elapsed since the ignition operation was performed.

  In the present embodiment, “a state in which a certain period of time has elapsed since all the gas burners 51, 52, 53, and 54 are in the fire extinguishing state” is set as a “predetermined long-time non-use state”. When determining whether or not the "predetermined long-time non-use state", when a gas burner other than the gas burner to be ignited is in a use state (ignition state), It will be determined that it is not “state”. That is, even if the gas burner to be ignited has not been used for a long time, it is not regarded as a “predetermined long-time non-use state” as long as other gas burners continue to be used.

  For example, when an ignition operation is performed on the rotation operation unit 6A corresponding to the gas burner 51 (an operation of pressing the front surface part when in the retracted position), the rotation operation unit 6A on which the ignition operation is performed is displaced to the protruding position. And held in the protruding position. Then, the switch 30A corresponding to the rotation operation unit 6A is switched from the OFF state to the ON state in response to the rotation operation unit 6A having been subjected to the ignition operation being displaced to the protruding position, and the ignition signal input circuit corresponding to the switch 30A The signal input from 40A to the control circuit 10 is switched from the off signal to the on signal. As described above, when the signal input from the ignition signal input circuit 40A is switched from the off signal to the on signal, the control circuit 10 determines that the signal input from the ignition signal input circuit 40A is switched from the off signal to the on signal. It is determined whether or not a “predetermined state of non-use for a long time”. Specifically, at the time when the signal input from the ignition signal input circuit 40A is switched from the off signal to the on signal, “a state in which a certain period of time has elapsed since all the gas burners 51, 52, 53, and 54 are in the fire extinguishing state”. If it is not applicable (that is, “the gas burners 51, 52, 53, 54 are all input from the ignition signal input circuit 40A after a certain period of time has passed since the fire extinguishing state has been reached). When the signal is not switched from the off signal to the on signal), the igniter 26A corresponding to the ignition operation of the rotation operation unit 6A is discharged at the first timing. That is, the igniter 26A is discharged at a timing when a predetermined fixed time (first time) has elapsed since the ignition operation was performed on the rotation operation unit 6A. On the other hand, if applicable, (that is, “the signal input from the ignition signal input circuit 40A is changed from the OFF signal to the ON signal after a certain period of time has elapsed since all the gas burners 51, 52, 53, and 54 are in the fire extinguishing state. In the case of switching to “)”, the igniter 26A corresponding to the ignition operation of the rotation operation unit 6A is discharged at a second timing later than the first timing. That is, the igniter 26A is discharged at a timing when a second time (a fixed time longer than the first time) has elapsed since the ignition operation was performed on the rotation operation unit 6A. The control circuit 10 may be configured to set the second timing later than the first timing, and the first time and the second time described above may be measured by a timer circuit or the like. As long as 2 hours can be secured longer than the first time, the timer circuit or the like may not be used.

Here, the effect of this structure is illustrated.
The gas stove 1 of this configuration can delay the timing of performing the spark discharge with the igniter when the “predetermined long-time non-use state” is set compared to when the “predetermined long-time non-use state”. Therefore, when the ignition operation is performed after the “predetermined long-time non-use state”, even if the time until a sufficient gas is supplied to the gas burner is delayed, spark discharge is generated by the igniter. There is a higher possibility that sufficient gas exists in the gas burner to be ignited at the timing to be performed. Moreover, even if the gas supply is not in time at the time of the first discharge, it is difficult to continue the ignition impossible state thereafter.

  As described above, when the gas burner is not used for a long time, it is easy to prevent the igniter from being discharged in a state where the gas supply is insufficient when the use is resumed.

  In the gas stove 1, “a state in which the gas burner has been in a fire extinguishing state for a predetermined time or longer” is set as a “predetermined long-time non-use state”. When the gas burner is in a fire extinguishing state for a certain period of time, the possibility that gas will remain in the path between the valve bodies is lower than when the gas burner is not, and sufficient gas is supplied to the gas burner. There is a higher possibility that the time until the state will be delayed. Therefore, according to this gas burner, it is more effective that the discharge operation of the igniter is performed in a state where the gas supply is insufficient when the use is resumed after “the gas burner is in a fire extinguished state for a certain time or more”. It becomes easy to prevent.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following examples are also included in the technical scope of the present invention.

  In the first embodiment, the gas stove 1 provided with the gas burners 51, 52, 53, and 54 is illustrated, but the number of gas burners may be larger or smaller than this. For example, it may be a gas stove in which only one gas burner is provided and only one igniter is provided.

  In the first embodiment, the “predetermined state of not being used for a long time” is exemplified as “a state in which all gas burners are in a fire extinguished state for a certain period of time”, but when an ignition operation is performed, the ignition operation is performed. The state in which the target gas burner has not been used for a certain period of time is referred to as the “predetermined long-time non-use state”. In this case, the discharge timing of the igniter corresponding to the gas burner that is the target of the ignition operation is It may be delayed from the reference timing.

  In the first embodiment, “the state in which all the gas burners have been in a fire extinguishing state for a certain period of time or more” is illustrated as the “predetermined state for a long time”. However, the gas stove 1 is provided so that electrical information can be input. A state in which no operation is performed on any of the plurality of operation units that has been performed may be a “predetermined long-time non-use state”.

  In the first embodiment, the “state in which all gas burners are in a fire extinguishing state has elapsed for a certain period of time” is exemplified as the “predetermined state for a long time”. For example, power supply from the power supply circuit 48 to the control circuit 10 The state in which is blocked may be referred to as a “predetermined long-time non-use state”. In this case, various conditions for cutting off the power supply from the power supply circuit 48 to the control circuit 10 can be set, and the power supply from the power supply circuit 48 to the control circuit 10 is cut off when a predetermined operation is performed on the gas stove 1. Alternatively, when a state in which no operation is performed on any of the plurality of operation units provided so that electrical information can be input in the gas stove 1 has passed for a certain period of time, the power supply circuit 48 controls the control circuit. The power supply to 10 may be cut off.

DESCRIPTION OF SYMBOLS 1 ... Gas stove 10 ... Control circuit 6A, 6B, 6C, 6D ... Rotation operation part (ignition operation part)
26A, 26B, 26C, 26D ... Igniters 51, 52, 53, 54 ... Gas burners

Claims (2)

With a gas burner,
An igniter that performs spark discharge and ignites the gas burner;
An ignition operation unit that performs an ignition operation from the outside;
A control circuit for causing the igniter to perform a spark discharge when the ignition operation is performed on the ignition operation unit;
Have
When the gas burner has not been used for a predetermined long period of time, the control circuit determines a time from when the ignition operation is performed to the ignition operation unit to when a spark discharge is performed by the igniter. A gas stove that is longer than when not in use for a long time.   The gas stove according to claim 1, wherein the predetermined long-time non-use state is a state in which the gas burner is in a fire extinguishing state and a predetermined time or more has elapsed.

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