JP2009002632A - Heating cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating cooker capable of switching a combustion state while avoiding unstable combustion of a gas combustion type heating means. <P>SOLUTION: The heating cooker is provided with a combustion state switching means NK freely switching the combustion state of the gas combustion type heating means 2 to a plurality of different combustion states; a manual operation-type command means for commanding either one out of the plurality of combustion states as a target combustion state; and a combustion control means 101 for controlling the combustion state switching means NK so as to switch to the target combustion state commanded based on the command by the command means. In the case where the target combustion state is commanded by the command means, when no additional target combustion state is commanded subsequently and set waiting time passes after the command of the target combustion state is issued, the combustion control means 101 controls the combustion state switching means NK so as to switch to the commanded target combustion state. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention includes a gas combustion type heating unit that heats an object to be heated, a combustion state switching unit that can switch a combustion state of the heating unit to a plurality of different combustion states, and any of the plurality of different combustion states. A manually operated command means for commanding the combustion state as a target combustion state, and a combustion control means for controlling the combustion state switching means so as to switch to the target combustion state commanded based on the command of the command means The present invention relates to a cooking device provided.

As an example of such a heating cooker, there is a grill device, and this grill device has an upper burner as an upper combustion portion provided at the upper portion of the grill cabinet and a lower burner as a lower combustion portion provided at the lower portion of the grill cabinet. And as a gas combustion type heating means.
That is, the combustion state switching means that can switch the combustion state of the upper burner and the lower burner to a plurality of different combustion states is provided, and when the target combustion state is commanded by a command of a manually operated command means, In some cases, the combustion control means is configured to control the combustion state switching means so that the combustion state of the upper burner and the lower burner is immediately switched so that the target combustion state commanded by the command means is achieved ( For example, see Patent Document 1.)

  In the above-mentioned patent document 1, the combustion state switching means is, for example, a combustion state where both the upper burner and the lower burner are high in thermal power, a combustion state where the upper burner is high in thermal power and the lower burner is low in thermal power, and the upper burner is It is configured to be able to switch between a combustion state in which the thermal power is weak and the lower burner is strong, and a combustion state in which both the upper and lower burners are weak in thermal power, and the command means switches the thermal power as a manually operated operation tool. And a command processing means for selecting and commanding one of a plurality of combustion states as a target combustion state in accordance with a preset selection order each time a switching command is commanded by the thermal power switch. Has been. In addition, although detailed contents are not described in Patent Document 1, the combustion control means and the command processing means are configured by using a control unit that controls operation, and the combustion state is switched. Each time the heat switch is operated, the upper burner and the lower burner are both in a burning state, the upper burner is in a burning state and the lower burner is in a burning state, the upper burner is in a burning state, and the lower burner is in a burning state. The combustion state in which the heating power is strong and the combustion state in which the upper burner and the lower burner are both in a low heating power are sequentially switched.

JP 2005-102848 A

  In the heating cooker, when the user cooks the food to be cooked, the combustion state of the gas combustion type heating means is switched by a command from the command means. When a different combustion state is commanded according to the cooking status etc. after the combustion state is commanded, or after the combustion state different from the desired combustion state is commanded due to an operation error, the desired combustion state May be commanded by the command means repeatedly in a short time interval.

  In particular, as described above, every time a switching command is commanded by a thermal power switch as a manually operated operation tool, a combustion state in which both the upper burner and the lower burner as heating means are hot, and the upper burner is thermal. A structure in which the combustion state in which the upper and lower burners are weak in thermal power, the combustion state in which the upper burner is weak in thermal power and the combustion state in which the lower burner is strong in thermal power, and the combustion state in which both the upper and lower burners are weak in thermal power are sequentially switched. If the current setting state is a combustion state in which the heating power is strong both in the upper and lower directions, and the user desires to switch to the combustion state in which the heat power is weak in both the upper and lower sides, the user sets the heating power changeover switch to 3. In this case, it is likely to be commanded to switch the combustion state repeatedly at short time intervals. It was those large.

  However, in the conventional configuration, when the combustion state is commanded by the command means, the combustion control means controls the combustion state switching means so that the combustion control means immediately switches the combustion state of the gas combustion type heating means. When switching of the combustion state is repeatedly commanded by the command means at short time intervals, the switching operation of the combustion state switching means is performed so that the switching of the combustion state is immediately executed correspondingly. As a result, the wasteful switching operation of the combustion state switching means may be repeatedly performed in a short time, and the supply state of the combustion gas to the gas combustion type heating means frequently changes in a short time. Due to the above, there is a disadvantage that the combustion of the heating means may become unstable.

  An object of the present invention is to provide a cooking device capable of switching the combustion state in a state in which the combustion of the gas combustion type heating means is prevented from becoming unstable.

  The heating cooker according to the present invention includes a gas combustion type heating means for heating an object to be heated, a combustion state switching means capable of switching the combustion state of the heating means to a plurality of different combustion states, and the plurality of combustions. A manually operated command means for commanding any one of the combustion states as the target combustion state, and controlling the combustion state switching means to switch to the target combustion state commanded based on the command of the command means Combustion control means, and the first characteristic configuration is that when the target combustion state is commanded by the command means, the target combustion state is newly set after that. If the set standby time elapses after the command for the target combustion state is issued without being commanded, the fuel combustion state is switched to the commanded target combustion state. In that it is configured to control the state switching device.

  According to the first characteristic configuration, when the target combustion state is instructed by the commanding means, the combustion control means does not control the combustion state switching means to immediately switch to the commanded target combustion state. When the target combustion state is instructed by the command means, a command is issued when the set standby time elapses after the target combustion state is instructed without a new target combustion state being instructed thereafter. Since the combustion state switching means is controlled to switch to the target combustion state, the target combustion state may be instructed by the command means after the target combustion state is instructed by the command means. Even if it is performed again in a short time shorter than the set waiting time, the elapsed time until the set waiting time elapses. Is of the combustion state switching means does not perform switching.

  As a result, even when the target combustion state is instructed by the command unit again in a short time shorter than the set standby time, the gas supply state to the gas combustion type heating unit is not changed. By avoiding frequent changes in a short time, it is possible to avoid the possibility that the combustion of the gas combustion type heating means becomes unstable.

  Therefore, it has become possible to provide a cooking device that can switch the combustion state in a state where the combustion of the gas combustion type heating means is prevented from becoming unstable.

  In addition to the first feature configuration, the second feature configuration of the present invention is a new feature in which the combustion control unit newly starts the set standby time after the command combustion unit is commanded by the command unit. When the target combustion state is commanded, the new command is set as the time when the target combustion state is commanded by the command means. When the elapsed time since the command is issued exceeds the set standby time, the combustion state switching means is controlled to switch to the commanded target combustion state.

  According to the second characteristic configuration, the combustion control means is newly instructed by the command means until the set waiting time elapses after the command combustion state is instructed by the command means. Then, instead of the target combustion state commanded last time, the new command is set as the target combustion state commanded by the command means. Further, whenever it is repeatedly performed that the target combustion state is newly commanded until the set standby time elapses, a new command commanded by the command means is sent each time the target combustion state is commanded. State. Then, after the new command is commanded by the command means, if the elapsed time has passed the set standby time without the command of the target combustion state being further commanded, the new command is commanded. The combustion state switching means is controlled to switch to the target combustion state.

  That is, when the command means is manually operated and repeatedly operated at short intervals shorter than the set standby time to command the target combustion state, the actual combustion state of the heating means is Instead of switching each time the target combustion state is commanded by the command means, the combustion state switching means is controlled to switch to the last commanded target combustion state among the repeated operations. This last commanded target combustion state corresponds to the combustion state desired by the user.

  Therefore, according to the second feature configuration, even when the user manually operates the command means and repeatedly commands in a short time, while avoiding frequent switching of the combustion state, It has been possible to switch to a combustion state desired by the user, and to provide a user-friendly cooking device.

  According to a third feature configuration of the present invention, in addition to the first feature configuration or the second feature configuration, the command means is a manually operated command operating tool for commanding the target combustion state switching command, and the command Command processing means for selecting and instructing one of the plurality of combustion states as the target combustion state in accordance with a preset selection order each time a switching command is instructed by an operating tool. The display means is provided for displaying which combustion state is selected as the target combustion state from among the plurality of combustion states.

  According to the third characteristic configuration, the command means performs target combustion in accordance with a preset selection order for one of a plurality of combustion states each time a switching command is commanded by a manually operated command operating tool. It will be selected and commanded as a state. In addition, since the display means displays which combustion state is selected as the target combustion state from among the plurality of combustion states, the user can now select which combustion state is the target combustion state. Therefore, it is possible to select and command the desired combustion state accurately and easily when operating and operating the command operating tool.

  By the way, when selecting and commanding one of the plurality of combustion states as the target combustion state, it may be configured to provide a plurality of manually operated command operation tools corresponding to the plurality of combustion states. This configuration has the disadvantage that the number of parts increases and the configuration is complicated and expensive. However, in the above configuration, the target combustion state can be commanded with one command operating tool, so the configuration is simplified. Is possible.

  Therefore, according to the third feature configuration, the desired combustion state can be accurately and easily selected and commanded, and can be selectively commanded with one command operating tool. It came to be able to provide the heating cooker which can simplify a structure compared with what is provided with a some command operation tool.

  According to a fourth feature configuration of the present invention, in addition to the third feature configuration, the display unit is configured to wait until the set standby time elapses after the target combustion state is commanded by the command unit, or the set standby mode. It is the point which is comprised so that the progress information which shows whether time has passed may be displayed.

  According to the fourth feature configuration, since the display means is configured to display the progress information, the user can visually inspect the progress information displayed on the display means to The user can recognize whether the set standby time has elapsed after the target combustion state has been commanded or whether the set standby time has elapsed, so that the user can achieve the desired combustion state. It is possible to make it easy to command.

  Therefore, according to the 4th characteristic structure, it came to be able to provide the cooking-by-heating machine which can make it easy to instruct | indicate so that it may become a combustion state which a user desires.

  According to a fifth feature configuration of the present invention, in addition to any one of the first feature configuration to the fourth feature configuration, the combustion state switching means is movable and operated at each of a plurality of operation positions corresponding to the plurality of combustion states. A moving operation body and an actuator for moving the moving operation body, and the combustion control means moves the moving operation body with the least amount of movement of the moving operation body or moves the moving operation body most. The actuator is controlled to move the moving operating body from the operating position before the moving operation to the operating position corresponding to the target combustion state on the moving operation path with a small amount of work when There is in point.

  According to the fifth characteristic configuration, the combustion state switching means switches the combustion state of the heating means by moving the moving operation body to each of a plurality of operation positions corresponding to the plurality of combustion states by an actuator. it can. The combustion control means moves the movement operation path with the least amount of movement of the movement operation body or the movement operation body when moving the operation position from the operation position before the movement operation to the operation position corresponding to the target combustion state. Since the actuator is controlled so that the moving operation body is moved along the moving operation path with a small amount of work, the combustion state can be switched in a short time as much as possible, and the combustion state can be switched with a small amount of work. As a result, the power consumption for operating the actuator can be reduced to a low level. In particular, in this type of cooking device, a battery may be used as a power source. In such a case, the life of the battery can be extended and the usability is improved.

  Therefore, according to the fifth characteristic configuration, it is possible to switch the combustion state of the heating means while suppressing power consumption, and to provide a user-friendly cooking device.

  In addition to any one of the first to fifth feature configurations, the sixth feature configuration of the present invention includes combustion stop command means for commanding stop of combustion of the heating means, and the combustion control means includes When the stop of combustion of the heating means is instructed by the combustion stop command means, the combustion state switching means is controlled to immediately stop the combustion.

  According to the sixth feature, the combustion control means controls the combustion state switching means to stop the combustion immediately when the combustion stop command means instructs the stop of the combustion of the heating means. After the command is issued, combustion does not continue unnecessarily, and wasteful fuel consumption can be suppressed.

  Therefore, according to the sixth characteristic configuration, it is possible to provide a user-friendly cooking device by suppressing wasteful fuel consumption.

  According to a seventh characteristic configuration of the present invention, in addition to any one of the first characteristic configuration to the sixth characteristic configuration, the heating means is provided at an upper combustion portion provided at an upper portion of the grill warehouse and at a lower portion of the grill warehouse. And a lower combustion section.

  In the seventh characteristic configuration, the heating means is composed of an upper combustion section provided at the upper part of the grill warehouse and a lower combustion section provided at the lower part of the grill warehouse. In the cooking device provided in the grill, it is difficult to visually check the inside of the grill from the outside of the apparatus. Therefore, when the switching of the combustion state is instructed by operating the instruction means, it is difficult to check the combustion state of the heating means from the outside of the apparatus. It will be a thing.

  In such a heating cooker, since it is difficult to confirm the combustion state of the heating means from the outside of the apparatus, the user is likely to repeatedly command the command means. Even if there is a command operation, it is possible for the user to switch the combustion state while avoiding unstable combustion of the gas combustion type heating means as described above. It will be easy to use.

[First Embodiment]
Hereinafter, an embodiment in which a first embodiment of a heating cooker according to the present invention is applied to a gas stove will be described based on the drawings.
As shown in FIG. 1, the gas stove includes a built-in type gas stove including a stove burner 1 and a grill portion 3 including a grill burner 2 as an example of a gas combustion type heating means. A grill exhaust port 4 for exhausting exhaust gas is formed, and the top surface of the gas stove is covered with a top plate 5. The stove burner 1 is composed of three burners: a standard burner 1a, a small burner 1b, and a high thermal power burner 1c. The top burner 1 is provided with a standard burner 1a, a small burner 1b, and a high thermal power burner 1c. Five virtues 6 for receiving and supporting an object to be heated (such as a pan) are placed and supported.

As shown in FIGS. 3 and 4, the grill portion 3 is a grill net as a placement portion for placing an object to be cooked such as fish in a grill box 7 formed in a box shape with an open front portion. 8 is provided. The grill burner 2 is different in form from the upper burner 2a as the upper combustion section provided on the ceiling above the grill 8 of the grill warehouse 7 and the upper burner 2a. 8 is composed of a pair of left and right lower burners 2b and 2c as a lower combustion portion disposed below 8.
Incidentally, FIG. 3 shows a longitudinal side view of the grill portion 3, and FIG. 4 shows a longitudinal front view of the grill portion 3.

  The upper burner 2a is constituted by a planar radiant burner along the ceiling of the grill cabinet 7, and each of the pair of left and right lower burners 2b, 2c is disposed at the lateral end of the grill cabinet 7 to be installed in the grill cabinet. 7 is a long bunsen burner along the front-rear width direction.

  An exhaust passage 9 for exhausting the combustion exhaust gas of the grill burner 2 to the outside of the machine is disposed on the rear side of the grill chamber 7 so as to extend upward, and the exhaust gas of the grill burner 2 is discharged to the grill exhaust port through the exhaust passage 9. 4 is configured to lead to 4. Incidentally, the secondary air of the grill burner 2 is configured to be taken in from the air holes 37 provided in the side surface, the bottom surface, and the front surface of the grill warehouse 7.

  Below the grill net 8, there is provided a juice receiving tray 10 for receiving oil from a food such as fish, and the juice receiving tray 10 is not shown, but is a guide provided on the side wall of the grill cabinet 7. With this guide, the grille 7 can be housed and moved out with the grill 8 placed thereon. Moreover, the front part of the juice receiving tray 10 is provided with a door portion 11 with a handle that closes the front portion of the grill storage 7 when the juice receiving tray 10 is stored in the grill storage 7. By opening and closing, the soup pan 10 and the grill net 8 are configured so as to be capable of being housed and removed with respect to the grill box 7 integrally.

  Further, as shown in FIG. 1, a manual operation unit S for instructing ignition and extinguishing of the stove burner 1 and the grill burner 2, fire power adjustment, and various settings is provided on the front side of the gas stove, as shown in FIG. In addition, a control unit H provided with a microcomputer and configured to execute various controls is provided. The control unit H is configured to control the combustion state of the stove burner 1 and the grill burner 2 based on the command information commanded by the manual operation unit S. An automatic return type push-operated power switch 25 is provided on the front side of the gas stove.

  As shown in FIG. 1, the manual operation section S is for instructing ignition / extinguishment and thermal power adjustment to the burner 1, that is, the standard burner 1a, the small burner 1b and the high thermal power burner 1c. It comprises three heating state adjusting units 12, a setting input panel 13 for grills that commands switching of the operating state of the grill burner 2, and a setting input operation unit 14 that commands setting of cooking.

  The configuration of the grill setting input panel 13 will be described. That is, as shown in FIG. 5, each time the fire extinguishing switch 15 and the grill burner 2 are combusted as a combustion stop state command means for commanding ignition and extinguishing of the grill burner 2 each time it is constituted by a push operation type switch and is pushed. Then, the combustion lamp 16 which is turned on and extinguished when the fire is extinguished, the timer setting switch 17 for increasing / decreasing the time of the extinguishing timer, the timer display unit 18 for displaying the set timer time, the heating of the upper burner 2a and the lower burners 2b, 2c A thermal power switch 19 as a push-operated manual operation tool for instructing a switching command for switching the amount, a thermal power display unit 20 for displaying the combustion state of each of the upper burner 2a and the lower burners 2b, 2c, heated to be cooked Menu changeover switch 21 for switching the combustion state according to the menu difference for the object, baking for adjusting baking Adjustment switch 22, such as a cancel switch 23 for canceling the automatic cooking operation is provided.

  The thermal power display unit 20 includes an upper fire weak display unit 20a indicating that the upper burner 2a is weak thermal power, an upper fire strong display unit 20b indicating that the upper burner 2a is high thermal power, and a lower burner. There is provided a weak display portion 20c for lower fire indicating low heat power, a strong display portion 20d for lower fire indicating that the lower burner is high heat power, a weak display portion 20a for upper fire and lower fire The weak display section 20c is composed of one display lamp, and the strong display section 20b for upper fire and the strong display section 20d for lower fire are each composed of two display lamps.

  As shown in FIG. 2, each of the standard burner 1a, small burner 1b, and high thermal power burner 1c is provided with an ignition plug 26 as an ignition device for performing an ignition operation and a thermocouple 27 for detecting an ignition state. 2 to 4, the upper burner 2a and the pair of left and right lower burners 2b and 2c in the grill burner 2 detect an ignition plug 26 as an ignition device for performing an ignition operation and an ignition state. A thermocouple 27 is provided.

  As shown in FIG. 3, the spark plug 26 and the thermocouple 27 for the pair of left and right lower burners 2b and 2c are disposed at locations corresponding to the rear end positions of the lower burners 2b and 2c. It is arranged in the ignition box 38 having a shape. Further, an upper temperature sensor 39 and a lower temperature sensor 40 are provided on the rear side of the place where the ignition plug 26 and the thermocouple 27 are disposed with respect to the pair of left and right lower burners 2b and 2c.

  In this gas stove, the combustion state switching means NK capable of switching the combustion state of the grill burner 2 to a plurality of different combustion states, and a manual operation for commanding any one of the plurality of combustion states as the target combustion state And a combustion control means 101 for controlling the combustion state switching means NK so as to switch to the target combustion state commanded based on the command of the command means SR.

  First, the gas supply structure to the stove burner 1 and the grill burner 2 will be described. As shown in FIG. 2, an original gas solenoid valve 30 is provided in the original gas supply path 29, and from this original gas supply path 29, a standard burner branch path 29a, a small burner branch path 29b, and a high thermal power burner branch. It is branched into five systems: a passage 29c, a branch passage 29d for the burner on the grill, and a branch passage 29e for the burner below the grill. Each of the five branches 29a to 29e is provided with a flow control valve 35 for adjusting the amount of gas to adjust the heating amount of each burner, and a position sensor 36 for detecting the opening position. It has been. Note that the flow control valve 35 is configured to be able to be switched to a shielding state in which the adjusted flow rate is zero. A gas governor G for adjusting the supplied gas pressure to a set value is provided upstream of the grill upper burner branch 29 d and the grill lower burner branch 29 e, and the supply gas from the original gas supply channel 29 is provided. Even if the pressure fluctuates, the amount of gas supplied to the grill burner 2 can be adjusted to a set value.

  Of the five flow control valves 35, the configuration of the upper burner flow control valve 35g and the lower burner flow control valve 35g provided in the upper grill burner branch 29d and the lower grill burner branch 29e will be described.

  The two grille flow control valves 35g have the same configuration, and as shown in FIG. 7, the stepping motor 41 as the actuator AC and the rotation operation of the stepping motor 41 are changed to a slide movement operation. A screw feed type moving operation mechanism 42, a slide closing member 44 as an example of a moving operation body D in which a gas passage insertion hole 43 is formed, and a flow rate in which two large and small gas passage adjustment holes 45 are formed. An adjustment plate 46 is provided, and a flow rate adjustment unit 47 that can change the gas amount is constituted by the slide closure 44 and the flow rate adjustment plate 46. The slide closing member 44 and the flow rate adjusting plate 46 are provided so as to be relatively slidable in a state where they are pressed against each other by a spring 48 while the gas flow path is shielded, and the stepping motor 41 is driven to drive the slide closing member 44. Can be changed and adjusted in two levels, a gas flow rate large (heating power strong) state and a gas flow rate small (heating power weak) state, and the slide closure 44 can be switched to the shielding position. It is configured freely (see FIG. 8). The slide movement amount of the slide closure 44 is detected by a slide movement detection sensor 49.

  Then, as shown in FIGS. 8 (a) to 8 (e), by operating the two grill flow control valves 35g separately, the thermal power of the upper burner 2a and the lower burners 2b, 2c is converted into a plurality of combustions. The conditions are “upper fire: strong / lower fire: strong”, “upper fire: strong / lower fire: weak”, “upper fire: weak / lower fire: strong”, “upper fire: weak / lower fire: weak”. , “Upper fire: shut off / lower fire: shut off” are configured to be switchable. Accordingly, the combustion state switching means NK that can switch the combustion state of the upper burner 2a and the lower burners 2b, 2c to a plurality of different combustion states is constituted by the flow control valves 35g for the grill.

  The switching of the heating power of the upper burner 2a and the lower burners 2b, 2c is performed by the control unit H controlling the flow control valves 35g for the two grilles based on the operation of the heating power changeover switch 19. ing. That is, when the power switch 25 is turned on and the operation is started, the control unit H initially sets “upper fire: strong / lower fire: strong” as the heating power of the upper burner 2a and the lower burners 2b, 2c. Each time the heating power changeover switch 19 is pushed, the control unit H performs “upper fire: strong / lower fire: weak”, “upper fire: weak / lower fire: strong”, and “upper fire: weak”. The target combustion state is commanded so as to switch in the order of “/ lower fire: weak”, and the flow control valves 35g for the two grilles are controlled so that the commanded combustion state is obtained. It is configured.

  Therefore, every time the heating power changeover switch 19 as the command operating tool is operated and the switching command is commanded using the control unit H, one of the plurality of combustion states is set in accordance with a preset selection order. Command processing means 100 for selecting and commanding as a target combustion state is configured, and for the two grilles as combustion state switching means NK so as to switch to the commanded target combustion state using the control unit H. Combustion control means 101 is configured to control the flow rate control valve 35g. And, by the command processing means 100 constituted by the thermal power changeover switch 19 and the control unit H, a manually operated command means SR for commanding any one of a plurality of combustion states as a target combustion state is constituted. Has been.

  When the target combustion state is instructed by the instruction means SR, the combustion control means 101 does not newly instruct the target combustion state, and the elapsed time since the target combustion state is instructed. When the set standby time elapses, the two grille flow control valves 35g are controlled to switch to the commanded target combustion state. Further, when the target combustion state is newly commanded after the set standby time elapses after the command means SR is commanded by the command means SR, the new command is sent by the command means SR. When the target combustion state is commanded, the commanded command is issued when the set standby time elapses after the command of the target combustion status is passed without the command of the target combustion status being newly commanded thereafter. In order to switch to the target combustion state, the flow control valves 35g for the two grilles are controlled. The control unit H controls the two grille flow control valves 35g so that the combustion is immediately stopped when the stop of the combustion of the grill burner 2 is instructed by the point fire extinguishing switch 15 as the combustion stop command means. It is configured as follows.

  And the display means 102 which displays which combustion state is selected as the target combustion state among the plurality of combustion states is provided, and the display means 102 is provided with the target combustion state by the command means SR. It is configured to display progress information indicating whether the set standby time has elapsed after the command is issued or whether the set standby time has elapsed.

  In other words, the thermal power display unit 20 is configured to be able to display which combustion state is selected as the target combustion state from among a plurality of combustion states, and the control unit H is configured as described above. Based on the command information of the command means SR, the progress indicating whether the set standby time has elapsed after the target combustion state is commanded by the command means SR or after the set standby time has elapsed. It is comprised so that the display state of the thermal-power display part 20 may be controlled so that information may be displayed. Therefore, the display means 102 is configured by the display control processing configuration of the thermal power display unit 20 and the control unit H.

  Although not described in detail, the flow control valve 35 for each of the standard burner 1a, the small burner 1b, and the high thermal power burner 1c is configured to increase the number of adjustment holes so that the thermal power can be switched to five or more stages. And the said control part H is comprised so that the combustion state of the stove burner 1 may be controlled based on the instruction | command by the heating state adjustment part 12. FIG.

Hereinafter, the combustion control operation of the grill burner 2 based on the command of the setting input panel 13 for grill by the control unit H will be described based on a flowchart.
As shown in FIGS. 9 and 10, when the power switch 25 is turned on, the control unit H turns on the point fire switch 15 in the grill setting input panel 13 and commands ignition (step). 1) The ignition process for the grill burner 2 is executed (step 2). Specifically, after the ignition operation by the spark plug 26 is started, the original gas solenoid valve 30 is opened and the flow control valves 35g for each grill are switched to the large flow rate side to ignite the grill burner 2, and the thermoelectric When ignition is confirmed by the pair 27, the ignition operation of the spark plug 26 is stopped and the combustion lamp 16 is turned on.
Thus, at the start of operation, the heating power of the grill burner 2 is initially set by operating the grill flow control valve 35g so that the heating amounts of the upper burner 2a and the lower burners 2b, 2c are both high heating power. It will be.

  If ignition is not confirmed by the thermocouple 27 provided corresponding to the upper burner 2a and the lower burners 2b, 2c even after a set time has elapsed since the start of the ignition process, a notification process is performed as a non-ignition error. The original gas solenoid valve 30 and the flow control valve 35 for each grill are closed to extinguish the fires of the upper burner 2a and the lower burners 2b, 2c (steps 3, 4, 5). As the notification process at this time, “11” is blinked and displayed five times on the timer display unit 18 and the buzzer BZ is intermittently sounded three times every second. By this notification process, the user can recognize that it is a non-ignition error.

  When it is confirmed by the thermocouple 27 that the upper burner 2a and the lower burners 2b and 2c are ignited, the operation of the fire extinguishing timer is started (step 6). As this fire extinguishing timer, 8 minutes is initially set as a standard cooking time in advance, and the set time “08” is displayed on the timer display unit 18. Further, the thermal power display unit 20 displays that the initial setting state of the thermal power is set to “upper fire: strong / lower fire: strong”. That is, the strong display portion 20b for upper fire and the strong display portion 20d for lower fire are turned on.

Next, when the thermal power changeover switch 19 is operated and the thermal power switching of the grill burner 2 is commanded, the switching thermal power changed by one step from the state set at that time is provisionally determined as the target combustion state ( Steps 7 and 8). If the explanation is added, at the start of use as described above, “upper fire: strong / lower fire: strong” is initially set, but when the thermal power changeover switch 19 is operated once from that state, FIG. As shown, “upper fire: strong / lower fire: weak” is set. Further, when the thermal power changeover switch 19 is operated, “upper fire: weak / lower fire: strong” and “upper fire: weak / lower fire: weak” are set in sequence each time it is operated. Returning, “upper fire: strong / lower fire: strong” will be set.
However, at this time, the switching operation of the actual flow rate control valve 35g is not performed only by temporarily determining the commanded switching heating power as the target combustion state.

  When the switching thermal power changed by one stage is provisionally determined as the target combustion state, the thermal power display unit 20 blinks in a display state corresponding to the temporarily determined switching thermal power (step 9). For example, when “upper fire: strong / lower fire: weak” is tentatively determined, the upper fire strong display portion 20b and the lower fire weak display portion 20c are blinkingly displayed. When “lower fire: weak” is tentatively determined, the weak display portion 20a for upper fire and the weak display portion 20c for lower fire are displayed in a blinking manner. The display state at this time corresponds to a state in which progress information is displayed until the set standby time elapses after the target combustion state is commanded by the command means SR.

  When the thermal power changeover switch 19 is operated again after the thermal power changeover switch 19 is operated and before a set standby time (for example, about 1 second) elapses, the thermal power changeover switch 19 set at that time is further reduced by 1 The switching thermal power changed in stages is provisionally determined as a new target combustion state, and blinking is displayed on the thermal power display unit 20 in a display state corresponding to the temporarily determined switching thermal power (steps 10, 11, 8, 9). Further, when the thermal power switch 19 is repeatedly operated until the set standby time elapses after the thermal power switch 19 is operated as described above, each time the switch operation is performed, as described above, The switching heating power is changed, and the changed switching heating power is provisionally determined as a new target combustion state and blinked on the heating power display unit 20.

  When the state in which the thermal power switch 19 is not operated continues for the set standby time or longer, the switching thermal power that is temporarily determined at that time is determined as the switching thermal power to be executed and becomes the switching thermal power. A heating power adjustment operation is executed by controlling the grill flow control valve 35g (step 12). When the switching thermal power to be executed is confirmed, the corresponding one in the thermal power display unit 20 is turned on in a display state corresponding to the confirmed switching thermal power (step 13). For example, when “upper fire: weak / lower fire: weak” is determined as the switching heating power to be executed, the upper fire weak display portion 20a and the lower fire weak display portion 20c are respectively lit and displayed. . This lighting display state corresponds to a state of displaying progress information indicating that the set standby time has elapsed.

  As described above, when the user switches to the combustion state desired by the operation of the thermal power changeover switch 19, heating cooking is performed in the combustion state, but a timer time change command may be issued during the heating cooking. For example, the timer time is changed and set according to the commanded contents, and the display state of the timer display unit 18 is changed (steps 14 and 15).

  In the middle of heating cooking, when it is detected that the output of the thermocouple 27 is lower than the set value and the upper burner 2a or the lower burners 2b, 2c are burnt out, a notification process is performed as a fire-off error and the above-mentioned Such a fire extinguishing process is executed (steps 16, 17, and 18). As a notification process at this time, “12” is blinked and displayed five times on the timer display unit 18 and the buzzer BZ is intermittently sounded three times every second. By this notification process, the user can recognize that it is a fire error.

  Further, based on the detection information of each of the temperature sensors 39 and 40, it is determined whether or not the temperature in the grill box 7 or the exhaust gas temperature exceeds the preset high temperature and becomes abnormally high, and the abnormally high temperature state If it is discriminated, the notification process and the fire extinguishing process are performed as an abnormally high temperature error (steps 19, 20, 18). As a notification process at this time, “02” is blinked and displayed only 10 times on the timer display unit 18 and the buzzer BZ is sounded for 3 seconds. This notification process allows the user to recognize that the user is in an abnormally high temperature state.

  When the set timer time elapses and the timer counts up, the timer-up state is notified and the fire extinguishing process is performed (steps 21, 22, and 18). As a notification process at this time, “00” is blinked and displayed five times on the timer display unit 18 and the buzzer BZ is intermittently sounded three times every second. By this notification processing, the user can recognize that the timer operation has ended. Also, if the fire extinguishing switch 15 is turned on and a combustion stop command is issued before the timer counts up, in this case, the flow control valves 35g for the two grills are immediately turned on with no time delay. By controlling, the fire extinguishing process for the grill burner 2 is executed (steps 23 and 18).

[Second Embodiment]
Hereinafter, 2nd Embodiment of the heating cooker which concerns on this invention is described. The second embodiment is different from the first embodiment except that the configuration of the combustion state switching means NK and the control configuration for controlling the combustion state switching means NK by the control unit H are different. Only the configuration will be described, and description of the same configuration will be omitted.

  As shown in FIGS. 11 and 12, the combustion state switching means NK includes a stepping motor 41 as an actuator AC, and a screw feed type moving operation mechanism 42 for changing the rotation operation of the stepping motor 41 to a slide movement operation. In addition, the slide closing member 44a as the moving operation body D in which the insertion hole 43 for gas passage is formed, the flow rate adjustment plates 46a and 46b in which the adjustment hole 45 for gas passage is formed, and the like, Although the same as the first embodiment, in the second embodiment, the slide closing member 44a is integrated with the flow adjustment plate 46a for the upper burner and the flow adjustment plate 46b for the lower burner. A stepping motor 41 and a screw feed type moving operation mechanism 42 for moving the slide closing member 44a are also provided. It is composed of a number of things.

  The upper burner flow rate adjusting plate 46a and the lower burner flow rate adjusting plate 46b have four gas passage adjusting holes 45 corresponding to the four combustion states along the sliding direction of the slide closing member 44a. The upper burner gas passage insertion hole 43a and the lower burner gas passage insertion hole 43a formed in the slide closure 44a are respectively arranged in a state where the upper burner flow adjustment plate 46a and the lower burner flow rate are formed. It is configured to be positioned in a state corresponding to the adjustment plate 46b, and to be switched to the four combustion states by sliding the slide closing member 44a. That is, in this embodiment, the combustion state of the upper burner 2a and the lower burners 2b and 2c can be switched by one stepping motor 41 as the actuator AC.

  That is, by moving one slide closing member 44a, as shown in FIGS. 12 (a) to 12 (e), the heating power of the upper burner and the lower burner is set to a plurality of combustion states, and “upfire: strong / Lower fire: strong, upper fire: strong / lower fire: weak, upper fire: weak / lower fire: strong, upper fire: weak / lower fire: weak, upper fire: shut off / lower It is configured to be switchable to each of "fire: shut off".

  Then, the control unit H controls the stepping motor 41 so as to move and operate one slide closing member 44a so as to move to the operation position corresponding to the target combustion state commanded by the command means SR. .

  With this configuration, the configuration is simpler than a configuration in which a plurality of slide closing mechanisms, stepping motors, screw feed type moving operation mechanisms, and the like are provided, and power consumption for driving the stepping motor is reduced. Can be suppressed.

[Third Embodiment]
Hereinafter, 3rd Embodiment of the heating cooker which concerns on this invention is described. The third embodiment is different from the first embodiment except that the configuration of the combustion state switching means NK and the control configuration for controlling the combustion state switching means NK by the control unit H are different. Only the configuration will be described, and description of the same configuration will be omitted.

  In this embodiment, as the combustion state switching means NK, as shown in FIG. 13 and FIG. 14, as a fixed outer cylinder 50 and a movable operating body D fitted into the outer cylinder 50 so as to be relatively rotatable. And a rotary flow rate adjustment valve 53 provided with an electric motor 52 as an actuator AC that can rotate the inner cylinder 51 in the forward and reverse directions.

  In other words, in the flow rate adjusting valve 53, a pair of large diameter gas passage insertion holes 54 for the upper burner and the lower burner are formed in the outer cylinder 50 in a state of being aligned in the axial direction. An adjustment hole 55 for gas passage is formed in the inner cylinder 51, and by rotating the inner cylinder 51, a plurality of combustion states are obtained: “upper fire: strong / lower fire: strong”, “upper fire: strong. / Lower fire: Weak "," Upper fire: Weak / Lower fire: Strong "," Upper fire: Weak / Lower fire: Weak ".

  In other words, as shown in FIG. 14, the inner cylinder 51 is positioned 90 degrees in the circumferential direction at the axial center position corresponding to the gas passage insertion hole 54 for the upper burner of the outer cylinder 50. As the adjustment holes 55, large-diameter holes 55a, large-diameter holes 55b, small-diameter holes 55c, and small-diameter holes 55d are formed in this order in the clockwise direction, and are used for gas passage for the lower burner of the outer cylinder 51. As the adjustment hole 55, a large-diameter hole 55e, a small-diameter hole 55f, a large-diameter hole 55g, a small-diameter are provided at the positions corresponding to the insertion holes 54 in the axial direction and different from each other by 90 degrees in the circumferential direction. The holes 55h are formed in the clockwise order in this order. As shown in FIG. 15, the reference position of “upper fire: strong / lower fire: strong” is set to 0 degree, and the rotation angle of the inner cylinder 51 is set to By sequentially switching 0 degree, 90 degrees, 180 degrees, and 270 degrees in the forward direction, In addition, “upper fire: strong / lower fire: strong”, “upper fire: strong / lower fire: weak”, “upper fire: weak / lower fire: strong”, and “upper fire: weak / lower fire: weak”, respectively. It becomes the composition which switches to.

  And in this embodiment, the control part H which comprises the said combustion control means 101 is the movement operation path | route with the least amount of movement when moving the inner cylinder 51 or the movement operation path | route with the least amount of movement of the inner cylinder 51. The electric motor 52 is controlled so that the inner cylinder 51 is moved from the operation position before the movement operation to the operation position corresponding to the target combustion state. The operation position of the inner cylinder 51 is detected by a position sensor (not shown).

  That is, when the combustion state before the moving operation is “upper fire: strong / lower fire: strong” and the target combustion state is “upper fire: weak / lower fire: weak”, the electric motor 52 is moved in the forward rotation direction. Instead of rotating and sequentially switching from 0 degrees to 90 degrees, 180 degrees, and 270 degrees, the electric motor 52 is rotated in the reverse direction to switch to “upper fire: weaker / lower fire: weak”. At this time, the angle at which the inner cylinder 51 is operated by the electric motor 52 is 90 degrees. This movement operation route corresponds to the movement operation route with the smallest amount of movement of the inner cylinder 51.

  In addition, when the upper combustion is “high fire: strong / lower fire: weak” before the moving operation and the target combustion state is “up fire: weak / lower fire: weak”, it may be rotated in the forward rotation direction. In either case, it is necessary to rotate the inner cylinder 51 by 180 degrees in any case, but the inner cylinder 51 needs to be rotated in the reverse direction to pass the state of “upper fire: strong / lower fire: strong”. Compared with the case of rotating in the forward rotation direction and passing through the state of “upper fire: weaker / lower fire: strong”, the sliding area of the outer cylinder 50 and the inner cylinder 51 becomes smaller, and the inner cylinder The amount of work when rotating 51 is reduced. That is, at this time, the movement in the reverse rotation direction becomes the movement operation path with the least amount of work when moving the inner cylinder 51. On the other hand, the movement in the forward rotation direction is the lowest when the upper combustion: weak / low fire: weak and the target combustion state is “high fire: strong / low fire: weak” before the moving operation. This is a moving operation path with a small amount of work when moving the cylinder 51.

[Another embodiment]
Hereinafter, other embodiments are listed.

(1) In the above embodiment, the command means presets one of a plurality of combustion states each time the manual operation type command operating tool and a switching command are commanded by the command operating tool. Although an example is provided that includes command processing means for selecting and commanding as a target combustion state in accordance with the selection order, instead of such a configuration, a manually operated command operating tool is provided in a plurality of combustion states. As a configuration provided in correspondence with the above, a configuration may be adopted in which a combustion state corresponding to the operated command operating tool is selected and commanded as a target combustion state.

(2) In the above embodiment, the combustion state switching means includes a moving operation body that can be moved and operated at each of a plurality of operation positions corresponding to the plurality of combustion states, and an actuator that moves the moving operation body. However, instead of such a configuration, an electromagnetic valve that can open and close a plurality of gas supply paths corresponding to a plurality of combustion states is provided, and a switching command by a command means is supported. The electromagnetic valve may be switched and operated.

(3) In the above embodiment, when the target combustion state is newly commanded before the set standby time elapses after the command means has commanded the target combustion state, the new command is sent to the command unit. When the target combustion state is instructed by the command means, the target combustion state is not newly instructed thereafter, and the elapsed time from the command of the target combustion state has passed the set standby time. In the above example, the combustion state switching means is controlled so as to switch to the commanded target combustion state. However, instead of such a configuration, the following configuration may be used.

  In other words, once the target combustion state is commanded by the command means, until the set standby time elapses, even if the target combustion state is newly commanded, it is not accepted, and the set standby time is set. It is good also as a structure which controls a combustion state switching means so that it may become the target combustion state commanded first after progress.

(4) In the above embodiment, the combustion stop command means for commanding the stop of combustion of the heating means is provided separately from the command means, but instead of such a configuration, the command means The command means may also serve as the combustion stop command means so that the heating means can be commanded to stop combustion.

(5) In the above embodiment, as the heating means, the upper burner as the upper combustion section provided in the upper part of the grill warehouse and the lower burner as the lower combustion section provided in the lower part of the grill warehouse are exemplified. The present invention is not limited to such a configuration, and may be configured to be applied to a stove burner as the heating means, and the present invention is not limited to a gas stove but can be applied to various cooking devices such as a gas oven.

Perspective view of cooking device Block diagram showing schematic configuration of heating cooker Vertical side view of grill Front view of the grill section Front view of setting input panel for grill Diagram showing switching of thermal power Sectional view showing the configuration of the flow control valve Plan view showing switching state of flow control valve Flow chart of control operation Flow chart of control operation Sectional drawing which shows the structure of the flow control valve of another embodiment. The top view which shows the switching state of the flow control valve of another embodiment Sectional drawing which shows the structure of the flow control valve of another embodiment. The disassembled perspective view which shows the structure of the flow control valve of another embodiment. The figure which shows the switching state of the flow control valve of another embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 2 Heating means 2a Upper side combustion part 2b, 2c Lower side combustion part 7 Grill box 15 Combustion stop command means 19 Command operation tool 100 Command processing means 101 Combustion control means 102 Display means D Moving operation body NK Combustion state switching means SR Command means

Claims (7)

Gas combustion type heating means for heating an object to be heated, combustion state switching means capable of switching the combustion state of the heating means to a plurality of different combustion states, and any one of the plurality of combustion states And a combustion control means for controlling the combustion state switching means so as to switch to the target combustion state commanded based on the command of the command means. A cooking device,
The combustion control means comprises:
When the target combustion state is commanded by the command means, the target combustion state is not newly commanded after that, and when the elapsed time from the command of the target combustion state has passed the set standby time, A heating cooker configured to control the combustion state switching means to switch to the commanded target combustion state. The combustion control means comprises:
After the target combustion state is commanded by the command means, when the target combustion state is newly commanded before the set waiting time elapses, the new combustion command is sent to the target combustion state by the command means. If the elapsed time from the command of the target combustion state has passed the set standby time without the command of the target combustion state being newly commanded after that, the commanded target combustion state The cooking device according to claim 1, wherein the combustion state switching means is controlled so as to be switched. The command means is
A manually operated command operating tool for commanding the switching command for the target combustion state, and one of the plurality of combustion states set in advance each time a switching command is commanded by the command operating tool Command processing means for selecting and commanding as the target combustion state along the order,
The cooking device according to claim 1 or 2, further comprising display means for displaying which of the plurality of combustion states is a combustion state selected as the target combustion state.   The display means displays progress information indicating whether the set standby time has elapsed after the target combustion state is commanded by the command means or whether the set standby time has elapsed. The cooking device according to claim 3, wherein the cooking device is configured. The combustion state switching means includes a moving operation body that can be moved and operated at each of a plurality of operation positions corresponding to the plurality of combustion states, and an actuator that moves the moving operation body.
The operation before the moving operation of the moving operation body is performed on the moving operation path with the least amount of movement of the moving operation body or the movement operation path with the least amount of work when moving the moving operation body. The cooking device according to any one of claims 1 to 4, wherein the cooking device is configured to control the actuator so that the actuator is moved from a position to an operation position corresponding to the target combustion state. Combustion stop command means for commanding stop of combustion of the heating means is provided,
The combustion control means is configured to control the combustion state switching means so as to stop combustion immediately when the combustion stop command means instructs the combustion stop of the heating means. The heating cooker according to any one of 5.   The heating cooker according to any one of claims 1 to 6, wherein the heating means includes an upper side combustion part provided at an upper part of the grill box and a lower side combustion part provided at a lower part of the grill box.

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