JP5557809B2 - Gas stove with grill - Google Patents

Description

  The present invention relates to a gas stove with a grill, which includes a grill part and a stove part, and is provided with an appliance plug provided with a manual on-off valve that is manually opened and closed during an ignition operation of a gas burner.

  Conventionally, in a gas stove with a manual open / close type appliance plug, a cooking container that is controlled so as not to ignite the gas burner in the absence of a cooking container such as a pan that is not disposed on the gas burner during ignition operation Some have a detection function (Patent Document 1). Because of the mechanical structure of the instrument plug, the gas stove is manually opened during ignition to supply gas to the gas burner. Therefore, a gas shut-off valve (latch solenoid valve) is provided in the gas passage between the instrument plug and the gas burner. When the absence of a cooking container is detected on the gas burner during the ignition operation, the gas shut-off valve is controlled to close so that the gas supply is shut off and the gas burner is not ignited.

JP 2010-139189 A

  By the way, it is desired to enhance the function by providing the above-mentioned cooking container detection function even in a gas stove with a grill provided with a manual open / close type appliance stopper and having a grill part. In a gas stove with a grill, there may be a case where the heating power adjustment operation during grill combustion or the ignition operation of the grill part and the ignition operation of the stove part are performed almost simultaneously. In this case, open / close control of the solenoid valve (gas amount adjustment valve) on the grill burner side and open / close control of the solenoid valve (gas shut-off valve, gas amount adjustment valve) on the combustor side are performed in order to increase the power source and power circuit. It is preferable not to apply a load. In particular, when the battery is used as a power source, the valve drive outputs of the solenoid valves of the grill burner and the stove burner are overlapped in order to extend the battery life and prevent the operation of the control unit from becoming unstable as the power decreases. It is preferable not to become.

  However, if the stove part is ignited during the adjustment of the heating power of the grill part or the control of the ignition operation, the ignition operation of the stove burner is started after the operation control in the grill part is completed. Therefore, the stove burner is ignited with a slight delay from the start of the ignition operation of the stove. The presence or absence of ignition of the stove burner at the stove can be easily confirmed visually by the user, so that if the ignition of the stove burner is delayed from the point of ignition operation, the user who performed the ignition operation will perform the ignition operation of the stove burner. There was a possibility that the user felt uncomfortable and misidentified that the stove had malfunctioned.

  In addition, when the stove part is ignited without the cooking container during the control of the heating power or ignition operation of the grill part, the cooking container detection function is activated after the operation control in the grill part is completed, and the gas of the stove burner is Since the closing operation of the shutoff valve is started, there is a delay in closing the gas shutoff valve. For this reason, the instrument plug is opened manually until the gas shut-off valve of the burner is actually closed, and a small amount of raw gas is released from the burner, which may give the user unpleasant feeling such as gas odor. was there.

  The present invention has been made in view of the above circumstances, and even when the ignition operation of the stove part is performed during operation control in the grill part, the operability of the ignition operation of the stove part is good, It is another object of the present invention to provide a gas stove with a grill that reliably prevents the release of raw gas from a stove burner when the stove part is ignited without a cooking container.

A gas stove with a grill according to the present invention comprises:
In a gas stove with a grill having a grill part and a stove part, and installing an appliance plug with a manual opening / closing valve manually opened at the time of ignition operation of the gas burner,
A grill burner as a gas burner that is disposed in the grill section and heats the food in the grill;
A stove burner as a gas burner disposed in the stove and heating the cooking vessel;
A cooking container detector for detecting the presence or absence of a cooking container on the stove burner;
A valve closing means provided in the gas passage or the instrument plug, for stopping the gas supply to the stove burner;
A control unit for controlling the operation of the stove unit and the grill unit;
The controller determines whether or not there is a cooking container based on the detection signal of the cooking container detector when an ignition operation is performed to manually open the manual opening / closing valve of the appliance plug in the stove unit. The valve means is opened and gas is supplied to the cono burner for ignition, and when there is no cooking container, the gas supply to the cono burner is stopped by the valve closing means and ignition operation control is performed to prevent ignition. If the stove part is ignited during the control of the heating power control or ignition, the operation control at the grill is interrupted to prevent the release of raw gas from the stove burner when there is no cooking container. Thus, a control configuration is performed in which the ignition operation control of the stove unit is performed with priority.

  According to the above configuration, even when the stove part is ignited during operation control in the grill part, as in the case where the stove part is ignited alone, in the state where the cooking vessel is on the stove burner, The ignition / combustion of the burner is performed without delay from the ignition operation. Therefore, there is no possibility of causing the user to feel uncomfortable with respect to the ignition operation of the stove burner that can be easily confirmed by the user, or misidentifying that the ignition operation is defective, and the operability of the stove ignition operation is improved. It will be good.

  Further, in a state where there is no cooking container, the valve closing means to the stove burner is immediately controlled to close by the ignition operation of the stove unit being started. Therefore, even when the cooker is ignited without the cooking container during the operation control of the grill part and the manual opening / closing valve of the appliance plug is opened manually, the raw gas is released from the stove burner by the valve closing means. Is surely prevented, and there is no discomfort such as gas odor to the user.

  The control unit outputs an interruption command to interrupt the operation control in the grill unit when an ignition operation of the stove unit is performed during the operation control for adjusting the thermal power or ignition of the grill unit. In the ignition operation control, if there is a cooking container, the grill that was interrupted by outputting a restart command after performing valve opening control of the valve closing means, or if there is no cooking container, after determining whether there is a cooking container It is desirable to adopt a control configuration that resumes the operation control of the unit.

  As a result, even when the operation for adjusting the heating power or igniting the grill part and the ignition operation of the stove part are performed almost simultaneously, the operation control in the grill part and the ignition operation control of the stove part are performed in order. be able to. Accordingly, it is possible to prevent a large load from being applied to the power supply, the power supply circuit, etc. For example, when a battery is used as the power supply, the battery life is lengthened and the operation of the control unit does not become unstable as the power decreases. Can be.

  When the ignition operation of the grill unit is performed, the control unit may be configured to control the closing of the valve closing unit for the burner that is not in combustion before performing the opening control of the on-off valve for the grill burner. desirable.

  Even in this case, during the operation control in the grill part, even if the cooker part is ignited without the cooking container on the stove burner, and the manual opening / closing valve of the appliance plug is manually opened, the valve closing means is used by the valve closing means. The release of raw gas from is prevented.

  As described above, according to the gas stove with a grill according to the present invention, even when the ignition operation of the stove part is performed during the operation control in the grill part, the operability of the ignition operation of the stove part is good, Further, when the stove part is ignited without the cooking container, the release of raw gas from the stove burner is reliably prevented.

It is a front view which shows the external appearance structure of the gas stove with a grill by embodiment. It is a schematic diagram explaining the operation | movement at the time of detecting the presence or absence of a cooking container with a cooking container detector. It is a schematic diagram which shows the gas circuit structure of the gas stove with a grill by embodiment. It is sectional drawing which shows the structure of the appliance stopper of a stove part, and a gas cutoff valve. It is a flowchart which shows the ignition operation procedure of a stove part for interrupting the operation control in a grill part and giving priority to the ignition operation of a stove part. It is a flowchart which shows the operation | movement procedure in a grill part when the ignition operation of a stove part is performed during the operation control of the thermal power adjustment of a grill part. It is a flowchart which shows the operation | movement procedure in a grill part when ignition operation of a stove part is performed during operation | movement control of the ignition of a grill part.

Embodiments will be described below with reference to the drawings.
As shown in FIG. 1, the gas stove with grill 1 according to the embodiment has a stove body 10 having a rectangular box shape, and the top plate on the top surface of the stove body 10 has two (a plurality of) first and second stove parts. 13R and 13L are provided, and a grill portion 8 is provided in the central portion of the stove body 10. In each of the first and second stove parts 13R and 13L, the first and second stove burners 51 (51R and 51L) as the gas burner 5 are faced to the top plate and the five virtues 12 are arranged, and the tip is in the center. Is provided with a cooking container temperature sensor 14 for detecting the cooking container bottom temperature by contacting the bottom of the cooking container A such as a pan.

  As shown in FIG. 2, the cooking container temperature sensor 14 is supported so as to be movable up and down, and a cooking container detector 15 is provided at the base end portion by a micro switch or the like that detects the raising and lowering state of the cooking container temperature sensor 14. ing. The cooking container detector 15 detects the presence or absence of the cooking container A on the stove burner 51. In other words, the cooking container detector 15 is turned off when the cooking container A is not on the virtues 12 and the cooking container temperature sensor 14 is in the raised position (see FIG. 2A). If there is, the cooking vessel temperature sensor 14 is turned on at the lowered position (see FIG. 2B). Therefore, the presence or absence of the cooking container A on the burner 51 is detected from the detection signal (on / off signal) of the cooking container detector 15. In addition, the flame detector 16 for detecting the presence or absence of the flame of the burner 51 and the ignition electrode 17 for igniting the burner 51 by spark discharge are arranged around the outer periphery of the burner 51. .

  The grill unit 8 is formed in the center of the stove body 10 and is used as a grill box 81 for storing a food item such as a fish, and a grill burner 52 (gas burner 5) for heating and cooking the food item in the grill box 81. There are provided a fire burner 52U and a lower fire burner 52B (see FIG. 3), and a grill door 82 which is attached to the front surface of the stove body 10 and allows the inside of the grill cabinet 81 to be opened and closed. Although not shown, each of the upper fire burner 52U and the lower fire burner 52B is spark-discharged with a flame detector (16) for detecting the presence or absence of flames in the upper fire / lower fire burners 52U, 52B. An ignition electrode (17) for igniting the upper and lower fire burners 52U and 52B is disposed.

  In the front portion of the stove main body 10, in the case shown in FIG. 1, the point fire extinguishing button 3 </ b> R and the first fire extinguishing button 3 </ b> R for operating the first stove burner 51 </ b> R in the first stove portion 13 </ b> R on the right side of the grill door 82. A heating power adjustment lever 4R for adjusting the heating power of the stove burner 51R, a fire extinguishing button 3C for operating the fire of the upper fire burner 52U and the lower fire burner 52B of the grill portion 8, and an upper fire / lower fire burner 52U, A thermal power switching button 4C for performing thermal power adjustment of 52B is provided. Further, on the left side of the grill door 82, a point fire extinguishing button 3L for performing a point fire extinguishing operation on the second stove burner 51L in the second stove part 13L and a heating power for adjusting the heating power of the second stove burner 51L. An adjustment lever 4L and a battery box 19 for storing a battery serving as a power source for the gas stove with grill 1 are provided. A commercial power source may be used as the power source of the gas stove with grill 1 instead of the battery.

  As shown in FIG. 3, each of the stove burners 51R and 51L and the upper and lower fire burners 52U and 52B is connected to a gas passage 91 branched from a gas pipe 9 for supplying gas. Is provided with an instrument plug 2 (2R, 2L, 2C) for manually opening and closing the gas passage 91. The fire extinguishing buttons 3R, 3L, 3C are attached to the appliance plugs 2R, 2L, 2C. The fire control levers 4R and 4L are also connected to the appliance plugs 2R and 2L of the first and second stove parts 13R and 13L.

  As shown in FIG. 4, the instrument plug 2 is a mechanical instrument plug 2 that is manually opened at the time of an ignition operation by the point fire extinguishing button 3. The instrument plug 2 is formed with an internal gas passage 23 communicating from the inlet 21 to the outlet 22 in the valve housing 20, and the internal passage 23 has an electromagnetic safety valve 25 and an original gas valve 24 from the upstream side. The needle valve 26 for adjusting the gas amount is accommodated. It should be noted that the needle plug 26 is not provided in the appliance plug 2C of the grill portion 8.

  The original gas valve 24 is fixedly attached to a predetermined position of the rod 27, and the electromagnetic safety valve 25 is disposed so as to be pressed at the distal end portion of the rod 27. The base end portion of the rod 27 is opposed to the slider portion 30 of the point fire button 3. The original gas valve 24 and the electromagnetic safety valve 25 are urged toward the valve closing side (the side on which the fire extinguishing button 3 is disposed) by the coil springs 28 and 29. Therefore, in the state where the point fire extinguishing button 3 is in the start position where the pushing operation (ignition operation) is not performed, the original gas valve 24 and the electromagnetic safety valve 25 are in a closed state in contact with the valve seat, and the internal passage 23 is It is closed. When the point-extinguishing button 3 is pushed (ignited), the original gas valve 24 is first opened from the valve seat against the biasing force of the coil spring 28, and then the electromagnetic safety valve 25 is connected to the rod. 27 is pressed against the urging force of the coil spring 29 and separated from the valve seat to be opened. The electromagnetic safety valve 25 has an adsorption piece 251 attached to the rear end thereof, and is held open by the adsorption piece 251 being adsorbed by an electromagnet 252 disposed on the back side. Thereby, the instrument plug 2 is maintained in an open state, and gas flows into the internal passage 23. In the present embodiment, the original gas valve 24 and the electromagnetic safety valve 25 constitute a manual open / close valve that is manually opened when the gas burner 5 is ignited, and both the original gas valve 24 and the electromagnetic safety valve 25 are opened. Sometimes the manual on-off valve of the instrument plug 2 is opened.

  The needle valve 26 is connected to the heating power adjustment lever 4 via a cam plate 261. Accordingly, the operation of the heating power adjusting lever 4 causes the needle valve 26 to move forward and backward through the cam plate 261, the flow rate of the gas flowing through the internal passage 23 is adjusted, and the heating power of the conoburner 11 is adjusted.

  Further, the internal passage 23 of the instrument plug 2 is provided with an orifice passage 231 having a narrow passage width and a bypass passage 232 that bypasses the orifice passage 231, and further, a gas amount adjusting valve that opens and closes the bypass passage 232. 6 (6R, 6L, 6U, 6B) are provided. The appliance plug 2C of the grill portion 8 is provided with an orifice passage 231, a bypass passage 232, and gas amount adjusting valves 6 U and 6 B corresponding to the upper fire burner 52 U and the lower fire burner 52 B, respectively (FIG. 3). The gas amount adjusting valve 6 is controlled to open and close during the automatic cooking of both the stove unit 13 and the grill unit 8 to adjust the heating power of the gas burner 5.

  Further, the gas amount adjusting valve 6 (6R, 6L) in the stove unit 13 causes the cooking container A to be retreated from the stove burner 51 during combustion of the stove burner 51 (51R, 51L), and the cooking container detector 15 causes the cooking container detector 15 to move away. The valve is closed when none is detected. Then, in the appliance plug 2 (2R, 2L), the gas is circulated only to the orifice passage 231 of the internal passage 23, and the total gas supply amount supplied to the stove burner 51 is reduced to a small amount. As a result, the thermal power control lever 4 ( Regardless of the heating power setting of 4R, 4L), the heating power of the burner 51 becomes a small fire state. Thereby, during combustion of the stove burner 51, a dangerous event due to a direct fire in a large fire state without a cooking container can be avoided, and safety is improved. When the presence of the cooking container is detected by the cooking container detector 15, the gas amount adjustment valve 6 is opened to return to the setting thermal power at the thermal power adjustment lever 4. Therefore, when the cooking container A is temporarily lifted by shaking the pan during combustion of the stove burner, the fire is only extinguished and the fire is not extinguished. .

  In the grill portion 8, the gas amount adjusting valve 6 is configured to be opened and closed by operating the heating power switching button 4C. That is, when a small heating power request is made by operating the heating power switching button 4C, the gas amount adjusting valve 6 (6U, 6B) is controlled to close, and the total gas supply amount supplied to the grill burner 52 (52U, 52B) is reduced. As a result, the grill burner 52 is in a thermal power state with a small thermal power. On the other hand, when a large heating power request is made by operating the heating power switching button 4C, the gas amount adjusting valve 6 is controlled to open, and the total gas supply amount supplied to the grill burner 52 is set to the bypass passage 232 and the orifice passage 231 of the appliance plug. As a result, the grill burner 52 is brought into a large thermal power state.

  In this manner, the upper fire burner 52U and the lower fire burner 52B, which are the grill burners 52, are both adjusted in terms of thermal power in two stages, large thermal power and small thermal power. Therefore, in the grill section 8, the thermal power switching button 4C allows both the upper fire burner 52U and the lower fire burner 52B to have a large thermal power state, and the upper fire burner 52U has a small thermal power and the lower fire burner 52B has a large thermal power state. The upper fire burner 52U is configured to be switched to four thermal power states, that is, a large thermal power and the lower fire burner 52B is a small thermal power state, and both the upper fire burner 52U and the lower fire burner 52B are small thermal power states.

  The point-extinguishing button 3 is provided with a heart cam type push-push mechanism comprising a heart-shaped cam groove 31 and an engagement element 32 engaged therewith, and the pressing is released after the point-extinguishing button 3 is pushed to the end position. Then, the fire extinguishing button 3 is locked at the holding position before the starting end position. In the holding position of the point-extinguishing button 3, the original gas valve 24 is held open, while the electromagnetic safety valve 25 is released from being pressed by the rod 27, but the attracting piece 251 is attracted and held by the electromagnet 252 against the coil spring 29. Is held open.

  Further, the point-extinguishing button 3 is provided with a cam 33 and a microswitch 11 that is turned on / off by the cam 33. The micro switch 11 constitutes a position detection means for detecting an operation position from the start end position to the end position of the point extinguishing button 3 in two stages. The micro switch 11 is a two-contact type having two independent contacts inside, and includes a movable piece 11a that comes into contact with the surface of the cam 33. The fire extinguishing button 3 is pushed and the movable piece 11a is moved to an intermediate position. When pushed, the first contact is turned on, and when the fire extinguishing button 3 is pushed further and the movable piece 11a is pushed further, the second contact is turned on. The operation position of the first stage where the first contact is turned on is set to a position near the opening and closing of the original gas valve 24, and the operation position of the second stage where the second contact is turned on is the electromagnetic safety valve 25. It is set at a position near before and after the valve is opened. When the operation position of the first stage is detected by the micro switch 11, the power is turned on and an excitation current is applied to the electromagnet 252 of the electromagnetic safety valve 25, and when the operation position of the second stage is detected, the igniter (not shown) becomes high. A voltage is applied and a spark discharge is generated from the ignition electrode 17. Although the microswitch 11 is of a two-contact type, the operation position of the fire extinguishing button 3 may be detected in two stages using two single-contact microswitches 11.

  Moreover, in each stove part 13R, 13L, the gas cutoff valve 7 (7R, 7L) is provided in the downstream position of the instrument plugs 2R, 2L between the instrument plugs 2R, 2L and the stove burners 51R, 51L. . This gas shut-off valve 7 constitutes a valve closing means for shutting off the gas passage 91 when there is no cooking container during the ignition operation. The gas shut-off valve 7 is constituted by a latch type electromagnetic valve (self-holding type electromagnetic valve). In the latch type solenoid valve, a plunger 71 is attached to a valve body 73, an electromagnetic coil 75 is arranged around the plunger 71, and an excitation current is applied to the electromagnetic coil 75 to move the plunger 71 by moving the plunger 71. Open and close. In the closed state of the valve body 73, the valve body 73 is urged by the spring 76 so as to close the valve port 72, and the valve body 73 is closed, and in the opened state of the valve body 73, the plunger 71 is moved by the permanent magnet 74. The valve element 73 is held open so as to adsorb and open the valve port 72. Therefore, the latching electromagnetic valve does not require holding power in the valve open state and the valve closed state, so that it is possible to suppress power consumption. Therefore, when using a battery power source, it is possible to prevent early deterioration of performance such as battery life.

  The gas amount adjusting valve 6 provided in each appliance plug 2 of the stove unit 13 and the grill unit 8 is also constituted by a latch type electromagnetic valve. Like the gas shutoff valve 7, a plunger 61, a valve port 62, a valve body 63, a permanent member are provided. It comprises a magnet 64, an electromagnetic coil 65, a spring 66, and the like.

  The gas stove with grill 1 includes a control unit (not shown) that controls the operation of the stove unit 13 and the grill unit 8. In order to prevent a large load from being applied to the power supply, the power supply circuit, and the like, the control unit controls each of the gas cutoff valves 7 (7R) in the first and second burner burners 51R and 51L and the upper and lower fire burners 52U and 52B. , 7L) and the valve drive outputs to the gas amount adjusting valves 6 (6R, 6L, 6U, 6B) are controlled in order. When the ignition operation of the stove unit 13 is performed during the operation control in the grill unit 8, the control unit interrupts the operation control in the grill unit 8 being executed and gives priority to the ignition operation of the stove unit 13. To control. Details will be described below.

  Next, as the operation of the gas stove with grill 1 having the above-described configuration, the operation of the stove unit 13 when the ignition operation of the stove unit 13 is performed during the operation control of the grill unit 8 will be described. The operation described below is executed by the control unit. In the flowchart of FIG. 5, when the ignition operation of the first stove unit 13R is performed during the heating power adjustment or ignition operation control of the grill unit 8, the operation control in the grill unit 8 is interrupted and the ignition operation of the stove unit 13R is performed. The operation procedure to be performed with priority is shown. Note that the flow of the ignition operation when the second stove unit 13L is ignited is based on the flowchart of FIG.

  Referring to the flowchart of FIG. 5, during the operation control in the grill section 8, the fire extinguishing button 3R is pushed in to start the ignition operation of the first stove section 13R, and the original gas valve 24 is opened (S1). ) When the first stage instrument plug operation position is detected by the micro switch 11 (S2), an excitation current to the electromagnetic safety valve 25 is applied (S3). At this time, an interruption command for interrupting the operation control in the grill portion 8 is output (S25). By this interruption command output, the operation control of the grill portion 8 is immediately interrupted, and the following ignition operation of the stove portion 13R is performed with priority.

  Then, a valve closing signal to the gas shutoff valve 7 of the first stove burner 51R is output for a predetermined time (for example, 110 ms) to hold the gas shutoff valve 7 of the first stove burner 51R in the closed state (S4 to S4). S6). Thereby, even if the instrument plug 2R is manually opened, that is, when the original gas valve 24 and the electromagnetic safety valve 25 are manually opened, the gas supply to the first burner 51R is stopped. Next, when the second stove burner 51L is not in combustion (“No” in S7), a valve closing signal to the gas shut-off valve 7 of the second stove burner 51L is output for a predetermined time (for example, 110 ms) to generate the second The gas shut-off valve 7 of the stove burner 51L is kept closed (S8 to S10). Note that when the second burner 51L is in combustion (“Yes” in S7), the valve closing control (steps S8 to S10) to the gas shut-off valve 7 is not performed, and the next operation proceeds.

  Next, the presence or absence of the cooking container A on the first stove burner 51R is determined based on the detection signal of the cooking container detector 15 (S11). When it is detected that there is a cooking container (“Yes” in S11), the valve opening signal is sequentially sent to the gas amount adjusting valve 6R and the gas cutoff valve 7R of the first stove burner 51R for a predetermined time (for example, 110 ms) is output (S12 to S17), and the gas amount adjusting valve 6R and the gas shut-off valve 7R are opened to enable the gas supply to the first burner 51R.

  Then, the electromagnetic safety valve 25 is opened by pressing the fire extinguishing button 3R (S18), and when the second stage instrument plug operation position is detected by the micro switch 11 (S19), the voltage application to the igniter is started. (S20) A spark is discharged from the ignition electrode 17 of the first stove burner 51R to ignite the first stove burner 51R. When the ignition operation of the stove unit 13R proceeds to this stage, a restart command for restarting the operation control of the interrupted grill unit 8 is output (S26). By this restart command output, the operation control in the waiting grill 8 is resumed.

  Then, when the detection voltage of the flame detector 16 that detects the flame of the first burner 51R continuously exceeds the ignition level for a predetermined time (S21), the voltage application to the igniter is stopped (S22). As a result, the first stove burner 51R starts to burn.

  On the other hand, when no cooking container is detected in step S11 ("No" in S11), application of current to the electromagnetic safety valve 25 provided in the appliance plug 2R is stopped (S23). As a result, when the push-off of the fire extinguishing button 3R is released, the electromagnetic safety valve 25 of the appliance plug 2R is closed. Further, in this case, the gas amount adjusting valve 6R and the gas shut-off valve 7R of the first stove burner 51R are not controlled (steps S12 to S17), and the gas is shut off before determining whether or not the cooking container A is present. The valve 7R is held in the closed state (steps S4 to S6). Accordingly, when the ignition operation is performed without the cooking container, the gas supply to the first stove burner 51R is stopped by holding the gas shutoff valve 7R closed, so that the first stove burner 51R is lit. In addition, the raw gas is not released from the first stove burner 51R. In this case, the fact that there is no cooking container is notified by a notification means (not shown) such as a buzzer or a display (S24). This prevents the user from misidentifying that the gas stove with grill 1 is out of order because the first stove burner 51R is not ignited even though the fire extinguishing button 3R is operated, and the cooking container A is The user can be urged to place it on the first stove burner 51R and perform an ignition operation.

  Further, when the stove unit 13R is ignited without the cooking container, at this stage, a restart command for resuming the operation control in the interrupted grill unit 8 is output (S27) and waiting The operation control in the inner grill portion 8 is resumed.

  As described above, according to the gas stove with a grill 1 according to the present embodiment, when the operation for adjusting the heating power and the ignition of the grill portion 8 and the ignition operation of the stove portion 13 are performed substantially at the same time, the grill portion 8. When the valve drive control for the grill burner 52 and the like by an operation such as adjusting the heating power of the heater and the valve drive control to the stove burner 51 by the ignition operation of the stove part 13 are sequentially performed, the stove part 13 during the operation control at the grill part 8 is performed. When the ignition operation is performed, the operation control in the grill unit 8 is interrupted, and the ignition operation of the stove unit 13 is preferentially performed. Thus, even when the stove unit 13 is ignited during the operation control of the grill unit 8, as in the case where the stove unit 13 is ignited alone, there is a cooking container on the stove burner 51. The ignition / combustion of the stove burner 51 is performed without delay from the ignition operation time. Therefore, there is no possibility of causing the user to feel uncomfortable with respect to the ignition operation of the stove burner 51 that can be easily confirmed by the user, or misidentifying that the ignition operation is defective. Will be good.

  In addition, when ignition operation of the stove unit 13 is performed during operation control of the grill unit 8, the operation control of the grill unit 8 is interrupted and priority is given to the ignition operation of the stove unit 13. Even if the stove unit 13 is ignited with no cooking container during control, the stove unit 13 is ignited in the absence of the cooking container as in the case where the stove unit 13 is ignited alone. As a result, the gas shutoff valve 7 (7R, 7L) to the stove burner 51 is immediately closed. Therefore, even if the source gas valve 24 and the electromagnetic safety valve 25 of the appliance plug 2 (2R, 2L) are manually opened by performing the ignition operation of the stove unit 13 in a state where there is no cooking container during the operation control in the grill unit 8. By closing the gas shut-off valve 7, the release of raw gas from the burner 51 is surely prevented, and the user does not feel uncomfortable such as gas odor.

  Next, the operation of the grill part 8 when the ignition operation of the stove part 13 is performed during the operation control of the grill part 8 will be described. First, the operation of the grill part 8 when the ignition operation of the stove part 13 is performed during the operation control of the heating power adjustment of the grill part 8 will be described with reference to the flowchart of FIG.

  With reference to the flowchart of FIG. 6A, for example, when the upper fire burner 52U and the lower fire burner 52B are both in a large thermal power state and the grill is being burned, the thermal power switching button 4C is operated to operate the upper fire burner 52U with a small thermal power. When a small heating power request (S31) for making a state is made, a valve closing signal for the gas amount adjusting valve 6U of the upper fire burner 52U is output for a predetermined time (for example, 110 ms) (S32 to S34). As a result, the gas amount adjusting valve 6U to the upper fire burner 52U is closed, and the thermal power of the upper fire burner 52U is switched from the large thermal power to the small thermal power state (S35).

  Here, during the above-described control of the heating power adjustment of the grill portion 8, it is monitored whether or not the stove portion 13 has been ignited (S33). If the stove portion 13 has been ignited, the grill portion 8 is monitored. The operation control of is interrupted. That is, when a stop command is output due to the start of the ignition operation of the stove unit 13 during the valve closing signal output to the gas amount adjusting valve 6U of the upper fire burner 52U (“Yes” in S36), this gas amount adjusting valve 6U. The valve closing signal output to is immediately stopped (S37), and the current operation control of the grill section 8 is interrupted. As a result, the heating power adjusting operation of the grill portion 8 is on standby, and the ignition operation of the stove portion 13 is preferentially advanced.

  Then, when a restart command is output after the predetermined ignition operation of the stove unit 13 is completed (“Yes” in S38), the interrupted operation control steps of the grill unit 8 (S32 to S34) are restarted, The valve closing signal to the gas amount adjusting valve 6U of the upper fire burner 52U is output again for a predetermined time from the beginning to close the gas amount adjusting valve 6U to the upper flame burner 52U, and the heating power of the upper fire burner 52U is large. To a small thermal power state (S35).

  Further, referring to the flowchart of FIG. 6B, for example, when the upper fire burner 52U and the lower fire burner 52B are in the combustion state of the grill in the large thermal power state, the upper fire burner 52U and the lower fire burner 52U are operated by operating the thermal power switching button 4C. When a small thermal power request (S41) for making both of the fire burners 52B into a small thermal power state is made, a valve closing signal to the gas amount adjusting valve 6U of the upper fire burner 52U is output for a predetermined time (for example, 110 ms) ( Next, a valve closing signal to the gas amount adjusting valve 6 of the lower fire burner 52B is output for a predetermined time (for example, 110 ms) (S46 to S48). In this case, the valve closing signal output (S46 to S48) for the gas amount adjusting valve 6B of the lower fire burner 52B is performed first, and then the valve closing signal output (S42 to S44) for the gas amount adjusting valve 6U of the upper fire burner 52U is performed. ) May be performed. As a result, the gas amount adjusting valves 6U and 6B to the upper fire burner 52U and the lower fire burner 52B are closed, and the thermal power of the upper fire burner 52U and the lower fire burner 52B is changed from a large thermal power to a small thermal power. Switching (S45, S49).

  Here, during the operation control of the respective heating power adjustments of the upper fire burner 52U and the lower fire burner 52B, it is monitored whether or not the ignition operation of the stove unit 13 has been performed (S43, S47). When the ignition operation is started, the operation control of the grill portion 8 is interrupted. That is, when a stop command is output due to the start of the ignition operation of the stove unit 13 during the valve closing signal output to the gas amount adjusting valve 6U of the upper fire burner 52U (“Yes” in S50), the upper fire burner 52U The valve closing signal output to the gas amount adjusting valve 6U is immediately stopped (S51), the current operation control of the grill portion 8 is interrupted, and the gas of the lower fire burner 52B after the heating power adjustment of the upper fire burner 52U is adjusted. If the interruption command is output while the valve closing signal is being output to the amount adjusting valve 6B (“Yes” in S53), the valve closing signal output to the gas amount adjusting valve 6B of the lower fire burner 52B is immediately stopped. Then, the current operation control of the grill unit 8 is interrupted (S54). As a result, the heating power adjustment operation of the grill portion 8 is in a standby state with the interrupted operation, and the 13 ignition operation of the stove portion is preferentially advanced.

  Then, when a resumption command is output after the predetermined ignition operation of the stove unit 13 is completed (S52, S55), the operation is resumed from the operation control step of the grill unit 8 where it was interrupted. That is, when the heating power adjustment operation of the upper fire burner 52U has been interrupted, a valve closing signal to the gas amount adjusting valve 6U of the upper fire burner 52U is output for a predetermined time from the beginning by a restart command output (“Yes” in S52). (S42 to S44) Also, when the heating power adjustment operation of the lower fire burner 52B is interrupted, a reclosing command output (“Yes” in S55) gives a valve closing signal to the gas amount adjusting valve 6 of the lower fire burner 52B. A predetermined time is output from the beginning (S46 to S48), the gas amount adjusting valves 6U and 6B to the upper fire burner 52U and the lower fire burner 52B are closed, and the heating power of the upper fire burner 52U and the lower fire burner 52B. Are switched from a large thermal power to a small thermal power (S45, S49).

  In addition, when the ignition operation of the stove part 13 is performed, the operation control of the heating part adjustment of the grill part 8 other than the above is performed according to the said operation | movement.

  Here, when the stove 13 is extinguished (when the fire extinguisher button 3 is pushed in and then released and returned to the original starting position), the electromagnetic safety valve 25 and the original gas valve 24 of the appliance plug 3 are closed. The gas shut-off valve 7 and the gas amount adjusting valve 6 of the burner 51 are in a state during combustion, that is, in a valve open state. Therefore, when both the stove part 13 and the grill part 8 are in combustion, only the stove part 13 is extinguished, and then the stove part 13 that has been extinguished immediately after performing the heating power adjustment operation of the grill part 8 is ignited. Can be considered. Under this condition, if the ignition operation of the stove section 13 is performed during the operation control of the heating power adjustment in the grill section 8 and the ignition operation of the stove burner 51 is started after the operation control of the grill section 8 is finished, the stove burner When ignition operation of the stove part 13 is performed in a state where there is no cooking container A on 51, the valve closing control to the gas cutoff valve 7 of the stove burner 51 is delayed until the gas cutoff valve 7 is held closed. In addition, there is a possibility that the raw gas valve 24 and the electromagnetic safety valve 25 of the instrument plug 2 are manually opened to release the raw gas from the stove burner 51.

  On the other hand, according to the present embodiment, the ignition operation of the stove unit 13 is performed on the stove burner 51 with no cooking container during the operation control of the heating power adjustment in the grill unit 8 under the above conditions. However, since the operation control of the grill portion 8 is interrupted and the ignition operation of the stove portion 13 is prioritized, the gas shut-off valve 7 of the stove burner 51 is immediately closed and held. Release is reliably prevented. In addition, in the state where there is a cooking container on the stove burner 51, since the ignition / combustion of the stove burner 51 is performed without delay from the time of the ignition operation, as in the case where the stove part 13 is ignited alone. There is no sense of incongruity.

  Next, the operation of the grill unit 8 when the stove unit 13 is ignited during the ignition operation control of the grill unit 8 will be described with reference to the flowchart of FIG. Referring to the flowchart of FIG. 7, when the fire extinguishing button 3C is pushed to start the ignition operation of the grill portion 8, the original gas valve 24 of the appliance plug 2C is opened (S61), and the first stage from the micro switch 11 is opened. When the instrument plug operation position is detected (S62), power is supplied from the power source to the control unit to hold the control power supply (S63), and an excitation current is applied to the electromagnetic safety valve 25 of the instrument plug 2C (S64).

  First, valve closing control for the gas shut-off valves 7R and 7L of the stove burners 51R and 51L of the first and second stove parts 13R and 13L is sequentially performed. That is, a valve closing signal to the gas shutoff valve 7R of the first stove burner 51R is output for a predetermined time (for example, 110 ms) (S66 to S68), and then a valve closing signal to the gas shutoff valve 7L of the second stove burner 51L. Is output for a predetermined time (for example, 110 ms) (S70 to S72). The valve closing signal output (S70 to S72) for the gas cutoff valve 7L of the second stove burner 51L is performed first, and then the valve closing signal output (S66 to S68) for the gas cutoff valve 7 of the first stove burner 51R is performed. May be. As a result, the gas shutoff valves 7R and 7L of the first and second stove burners 51R and 51L are both closed. Note that the valve closing control operation is not performed for the burning burners 51R and 51L (“Yes” in S65, “Yes” in S69).

  Next, the valve opening control for the gas amount adjusting valves 6U, 6B of the upper fire burner 52U and the lower fire burner 52B of the grill portion 8 is sequentially performed. That is, a valve opening signal for the gas amount adjusting valve 6U of the upper fire burner 52U is output for a predetermined time (eg, 110 ms) (S73 to S75), and then a valve opening signal for the gas amount adjusting valve 6B of the lower fire burner 52B is predetermined. Time (for example, 110 ms) is output (S76 to S78). The valve opening signal output (S76 to S78) for the gas amount adjusting valve 6B of the lower fire burner 52B is performed first, and then the valve opening signal output (S73 to S75) for the gas amount adjusting valve 6U of the upper fire burner 52U is performed. May be. As a result, the gas amount adjusting valves 6U and 6B to the upper fire burner 52U and the lower fire burner 52B are opened, and the upper fire burner 52U and the lower fire burner 52B can be supplied with a gas amount corresponding to a large heating power. .

  Then, the electromagnetic safety valve 25 is manually opened by pushing the point fire extinguishing button 3C (S79), and when the second stage instrument plug operation position is detected by the micro switch 11 (S80), a voltage is applied to the igniter ( S81), sparks are discharged from the respective ignition electrodes 17 of the upper fire burner 52U and the lower fire burner 52B to ignite the upper fire burner 52U and the lower fire burner 52B. When the detection voltage of the flame detector 16 for detecting the flame in each of the upper fire burner 52U and the lower fire burner 52B continuously exceeds the ignition level for a predetermined time (S82), the voltage application to the igniter is stopped (S83). As a result, the upper fire burner 52U and the lower fire burner 52B start to burn with a large heating power.

  Then, during the above-described ignition operation control of the grill portion 8, it is monitored whether or not the stove portion 13 has been ignited (S67, S71, S74, S77), and the stove portion 13 has been ignited. The operation control of the grill portion 8 is interrupted. That is, when a stop command is output due to the start of the ignition operation of the stove unit 13 during the valve closing signal output to the gas shut-off valve 7R of the first stove burner 51R ("Yes" in S84), the first conburner The valve closing signal output to the gas cutoff valve 7R of 51R is immediately stopped (S85), the current operation control of the grill portion 8 is interrupted, and the valve closing signal to the gas cutoff valve 7L of the second stove burner 51L is interrupted. If an interruption command due to the start of the ignition operation of the stove 13 is output during output (“Yes” in S87), the valve closing signal output to the gas shutoff valve 7L of the second stove burner 51L is immediately stopped. (S88) The current operation control of the grill unit 8 is interrupted.

  And if the restart command after the predetermined | prescribed ignition operation | movement of the stove part 13 is complete | finished is output, it will restart from the step of the operation control of the grill part 8 where it was interrupted. That is, when the valve closing control is interrupted to the gas shut-off valve 7R of the first stove burner 51R, a restart signal is output (“Yes” in S86), and the valve closing signal to the gas shut-off valve 7R of the first con-burner 51R Is output for a predetermined time from the beginning (S65 to S68), and when the valve closing control to the gas shutoff valve 7L of the second stove burner 51L is interrupted (“Yes” in S89), 2 A valve closing signal to the gas shut-off valve 7 of the stove burner 51L is output for a predetermined time from the beginning (S69 to S72), and the gas shut-off valves 7R of the stove burners 51R of the stove parts 13R, 13L that have not been ignited 7L is closed.

  In addition, when a stop command is output due to the start of the ignition operation of the stove unit 13 during the valve opening signal output to the gas amount adjusting valve 6U of the upper fire burner 52U ("Yes" in S90), the upper fire burner 52U The valve opening signal output to the gas amount adjusting valve 6U is immediately stopped (S91), the current operation control of the grill portion 8 is interrupted, and the valve opening signal to the gas amount adjusting valve 6B of the lower fire burner 52B is interrupted. If an interruption command due to the start of the ignition operation of the stove 13 is output during the output ("Yes" in S93), the valve opening signal output to the gas amount adjusting valve 6B of the lower fire burner 52B is immediately stopped. (S94), the current operation control of the grill unit 8 is interrupted, and the ignition operation of the stove unit 13 is preferentially performed.

  And if the restart command after the predetermined | prescribed ignition operation | movement of the stove part 13 is complete | finished is output, it will restart from the step of the operation control of the grill part 8 where it was interrupted. That is, when the valve opening control is interrupted to the gas amount adjusting valve 6 of the upper fire burner 52U, a restart command output ("yes" in S92) causes the valve opening signal to the gas amount adjusting valve 6U of the upper flame burner 52U. Is output for a predetermined time from the beginning (S73 to S75), and when the valve opening control to the gas amount adjusting valve 6B of the lower fire burner 52B has been interrupted (“Yes” in S95), A valve opening signal to the gas amount adjusting valve 6B of the fire burner 52B is output for a predetermined time from the beginning (S76 to S78), and the gas amount adjusting valves 6U and 6B to the upper fire burner 52U and the lower fire burner 52B are opened. The gas is supplied to the upper fire burner 52U and the lower fire burner 52B.

  As described above, according to the gas stove with a grill 1 of the present embodiment, when the ignition operation of the grill portion 8 is started, first, the gas cutoff valve 7 of the burner 51 that is not combusted is closed. During the opening control of the gas amount adjusting valves 6U, 6B of the fire / lower fire burners 52U, 52B, the stove unit 13 is ignited on the stove burner 51 with no cooking container, and the appliance plug 2 is manually installed. Even when the gas shut-off valve 7 is opened, the gas cutoff valve 7 is closed to prevent the raw gas from being released from the stove burner 51.

  On the other hand, the closing control of the gas shut-off valves 7R, 7L of the burners 51R, 51L by starting the ignition operation of the grill part 8 is performed on the gas shut-off valves 7R, 7L of the first and second conburners 51R, 51L. For example, it is conceivable that the ignition operation of the second stove 13L is performed during the execution of the valve closing control for the gas cutoff valve 7R of the first stove burner 51R. Under this condition, if the ignition operation control of the second stove part 13L is started after the operation control of the grill part 8 is finished, the second stove part 13L of the second stove part 13L without the cooking container A on the second stove burner 51L. When the ignition operation is performed, the valve closing control to the gas cutoff valve 7L of the second stove burner 51L is delayed, and until the gas cutoff valve 7L is held closed, the original gas valve of the instrument plug 2L is manually operated. 24 and the electromagnetic safety valve 25 may be opened, and raw gas may be released from the second stove burner 51L.

  On the other hand, according to this embodiment, even if the ignition operation of the stove unit 13 is performed on the stove burner 51 without the cooking container during the ignition operation control in the grill unit 8, Since the operation control is interrupted and the ignition operation control of the stove unit 13 is performed with priority, the gas shutoff valve 7L of the second stove burner 51L is immediately held closed under the above conditions. The release of raw gas from the burner 51L is reliably prevented. In addition, in the state where there is a cooking container on the stove burner 51, since the ignition / combustion of the stove burner 51 is performed without delay from the time of the ignition operation, as in the case where the stove part 13 is ignited alone. There is no sense of incongruity.

In addition, this invention is not limited only to the said embodiment, In the range which does not change the summary of invention, it can change suitably.
For example, the above-described interruption command and resumption command from the stove unit 13 use the detection signal of the micro switch 11 that detects the first-stage appliance plug operation position in each of the stove units 13R and 13L as an interruption command, and the second-stage appliance. You may make it recognize the detection signal of the micro switch 11 which detects a stopper operation position, or the detection signal of the absence of a cooking container from the cooking container detector 15 as a restart command.
Further, the gas shut-off valve 7 and the gas amount adjusting valve 6 may be motor valves that are opened and closed by motor driving instead of the latch type electromagnetic valves. Since this motor valve does not require holding power for holding or closing the valve as in the case of the latch-type electromagnetic valve, it is possible to suppress power consumption.
Further, the gas shut-off valve 7 as the valve closing means is provided at the downstream position of the instrument plug 2, but may be provided at the upstream position of the instrument plug 2, or may be provided in the instrument plug 2.
Moreover, the point-extinguishing button 3 is not limited to a push-in type but may be a push-in type.

A Cooking container 1 Gas stove with grill 2 Instrument plug 5 Gas burner 6 Gas amount control valve 7 Gas shut-off valve (valve closing means)
8 Grill portion 9 Gas passage 10 Stove body 11 Micro switch 13 Stove portion 14 Cooking vessel temperature sensor 15 Cooking vessel detector 24 Original gas valve 25 Electromagnetic safety valve 51 Stove burner (gas burner)
51R First stove burner 51L Second stove burner 52 Grill burner 52U Upper fire burner 52B Lower fire burner

Claims (3)

In a gas stove with a grill having a grill part and a stove part, and installing an appliance plug with a manual opening / closing valve manually opened at the time of ignition operation of the gas burner,
A grill burner as a gas burner that is disposed in the grill section and heats the food in the grill;
A stove burner as a gas burner disposed in the stove and heating the cooking vessel;
A cooking container detector for detecting the presence or absence of a cooking container on the stove burner;
A valve closing means provided in the gas passage or the instrument plug, for stopping the gas supply to the stove burner;
A control unit for controlling the operation of the stove unit and the grill unit;
The controller determines whether or not there is a cooking container based on the detection signal of the cooking container detector when an ignition operation is performed to manually open the manual opening / closing valve of the appliance plug in the stove unit. The valve means is opened and gas is supplied to the cono burner for ignition, and when there is no cooking container, the gas supply to the cono burner is stopped by the valve closing means and ignition operation control is performed to prevent ignition. If the stove part is ignited during the control of the heating power control or ignition, the operation control at the grill is interrupted to prevent the release of raw gas from the stove burner when there is no cooking container. A gas stove with a grill having a control configuration that preferentially controls the ignition operation of the stove. The gas stove with a grill according to claim 1,
The control unit outputs an interruption command to interrupt the operation control in the grill unit when an ignition operation of the stove unit is performed during the operation control for adjusting the thermal power or ignition of the grill unit. In the ignition operation control, if there is a cooking container, the grill that was interrupted by outputting a restart command after performing valve opening control of the valve closing means, or if there is no cooking container, after determining whether there is a cooking container Gas stove with a grill having a control configuration for resuming the operation control of the part. The gas stove with a grill according to claim 1 or 2,
The control unit includes a grille having a control configuration in which when the ignition operation of the grill unit is performed, the valve closing unit for the burner that is not in combustion is controlled to perform the valve closing control before the valve opening control of the grill burner is performed. Gas stove.