Heating cooker

Abstract

To provide a cooker capable of easily preventing a time that display becomes unstable after power is turned on from prolonging.SOLUTION: A cooker 1 has a nonvolatile storage unit 74 and a control unit 71. When the cooker 1 is switched from a power-off state to a power-on state, the control unit 71 performs initial operation of setting a display unit 91 to a state determined by display setting information before initial check regarding a predetermined function is completed, and after the initial operation, sets the display unit 91 to a state in which the setting of function setting information is specified.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a cooking appliance.

Background Art

[0002] Patent Document 1 discloses an example of a cooking appliance. The cooking appliance of Patent Document 1 includes control means for controlling the operation of the appliance and non-volatile storage means for storing information for device operation. The control means controls the operation of the appliance based on the device operation information stored in the storage means.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In conventional cooking appliances including the technology of Patent Document 1, a method of storing setting information in a non-volatile memory unit is adopted. In this type of cooking appliance, even when the power is switched off, the setting information is retained in the non-volatile memory unit. Therefore, if the setting information stored in the non-volatile memory unit is read out and reflected when the power is restored, the setting information before the power-off can be continuously used even after the power is restored.

[0005] However, in a method where all the setting information is read and reflected immediately after the power is restored, it takes time to complete the reading, so there is a concern that the convenience for the user may be impaired. For example, in a method where the settings of the safety function are stored in the non-volatile memory unit and the setting content of the safety function is notified by a lamp, after the power is turned on, it is necessary to read the settings of the safety function from the non-volatile memory unit and determine the display state of the lamp so as to accurately reflect the setting content. However, in such a method, every time the power is turned on, it is necessary to wait until the setting of the safety function is reflected in the lamp display. When the setting and storage of the safety function are complicated or when the accuracy of the reading should be ensured, it takes time until the lamp display becomes stable.

[0006] Here, a cooking appliance that performs an initial check to confirm the settings of the safety function and reflects the check result in the display is taken as an example to point out the problem. However, not limited to this example, the same problem occurs in a cooking appliance that performs an initial check after a certain period of time after the power is turned on and then determines the display.

[0007] One object of the present disclosure is to provide a cooking appliance that can easily suppress the lengthening of the time during which the display becomes indefinite immediately after the power is turned on.

Means for Solving the Problem

[0008] A cooking appliance that is one of the present disclosures is a cooking appliance that switches between a power-on state and a power-off state, a display unit, a non-volatile memory unit that stores display setting information for determining whether a predetermined display of the display unit is valid or invalid, a control unit that controls the display unit based on the information stored in the non-volatile memory unit, and when the cooking appliance switches from the power-off state to the power-on state, the control unit performs an initial operation of setting the display unit to the state determined by the display setting information before the initial check regarding the predetermined function is completed.

Advantages of the Invention

[0009] The cooking appliance according to the present disclosure can continuously be used by storing setting information in a non-volatile memory unit, and it is easy to suppress a reduction in convenience.

Brief Description of the Drawings

[0010]

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0011] Hereinafter, embodiments of the present disclosure will be listed and illustrated. Note that the features [1] to [6] illustrated below may be combined in any combination without contradiction.

[0012] 〔1〕A cooking appliance that switches between a power-on state and a power-off state, a display unit, a non-volatile memory unit that stores display setting information for determining whether to enable or disable a predetermined display of the display unit, a control unit that controls the display unit based on information stored in the non-volatile memory unit, and having when the cooking appliance switches from the power-off state to the power-on state, the control unit performs an initial operation of setting the display unit to a state determined by the display setting information before an initial check regarding a predetermined function is completed Cooking appliance.

[0013] The cooking appliance according to [1] can perform an initial operation so as to reflect the setting of display setting information before completing an initial check regarding a predetermined function when the cooking appliance switches from the power-off state to the power-on state. This cooking appliance can solve the problem that the state of the display unit is not determined until the initial check regarding the predetermined function is completed, and can more quickly reflect the content of the nonvolatile memory on the display unit after the power is turned on.

[0014] 〔2〕Function setting information for determining whether to enable or disable a specific function is stored in the nonvolatile storage unit. The initial check includes a check for determining whether the specific function is valid or invalid based on the function setting information stored in the nonvolatile storage unit. When the cooking appliance switches from the power-off state to the power-on state, the control unit performs the initial operation before the initial check is completed, and after the initial operation, sets the display unit to a state in which the setting of the function setting information is specified. The cooking appliance according to [1].

[0015] The cooking appliance according to [2] can perform an initial operation so as to reflect the setting of display setting information before reflecting the setting of function setting information on the display unit. This cooking appliance can solve the problem that the state of the display unit is not determined until the setting of the function setting information is reflected, and can more quickly reflect the content of the nonvolatile memory on the display unit after the power is turned on. Moreover, even if the display made during the initial operation is incorrect or there are other problems, the display can be updated so as to reflect the function setting information, and thus the problems can be corrected and an appropriate display can be continued afterwards.

[0016] 〔3〕The function setting information includes safety function setting information for determining whether to enable or disable a predetermined safety function. After the initial operation, the control unit sets the display unit to a state in which the setting of the safety function setting information is specified. The cooking appliance according to [2].

[0017] It is desirable to have a more accurate method for checking and reflecting the safety function setting information stored in the non-volatile memory unit. However, the more accurate it is attempted to be, the more concerned one is that reading and reflection will take time, and there is a concern that the state of the display unit will not be determined until the reflection is completed, which will impair the convenience of the user. However, even if it takes time for the setting of the safety function setting information to be reflected in the cooking appliance described in [3], the display setting information can be quickly reflected on the display unit before that, so it is possible to prevent the user from waiting for a long time without being reflected in the display.

[0018] (4) The predetermined safety function is a function of extinguishing the gas burner when the combustion state of the gas burner continues for a predetermined time. The cooking appliance described in [3].

[0019] The cooking appliance described in (4) can limit the continuous combustion time of the gas burner to a predetermined time when the safety function is activated. However, this type of safety function is concerned that reading and reflection will take time in order to ensure accuracy. However, even if it takes time for the setting to be reflected in the cooking appliance described in (4), the display setting information can be quickly reflected on the display unit before that.

[0020] (5) The cooking appliance is a battery-powered cooking appliance in which power from a battery is supplied to the display unit. The power-on state is a state in which power from the battery is allowed to be supplied to the display unit, and the power-off state is a state in which power from the battery is not allowed to be supplied to the display unit. Furthermore, it has a switching unit that automatically switches to the power-off state when the cooking appliance is not in use. The cooking appliance according to any one of (1) to (4).

[0021] The cooking heater described in [5] can automatically switch to the power-off state when not in use, thus suppressing power consumption. However, for this type of cooking heater, since the frequency of automatically switching to the power-off state increases and the frequency of switching to the power-on state also increases, if it takes a long time for the settings to be reflected every time the power is turned on, it will greatly reduce the convenience for the user. However, the cooking heater of [5] can suppress the setting reflection time, so it can achieve both suppression of power consumption and convenience for the user.

[0022] [6] An ignition switch that receives an ignition operation from the outside, A power supply circuit that receives power supply from a battery and outputs power for operating electrical equipment in the cooking heater, and has The power-on state is a state in which power is supplied to the control unit based on the power output from the power supply circuit, and the power-off state is a state in which the power supply from the power supply circuit to the control unit is cut off. When the ignition operation is performed on the ignition switch in the power-off state, the power supply circuit switches to the power-on state The cooking heater according to any one of [1] to [5].

[0023] The cooking heater described in [6] has a simple configuration that switches to the power-on state when an ignition operation is performed on the ignition switch in the power-off state. When switching from the power-off state to the power-on state, before reflecting the setting of the function setting information on the display unit, an initial operation can be performed to quickly reflect the setting of the display setting information.

[0024] <First Embodiment> Hereinafter, the first embodiment will be described with reference to the drawings. 1. Overall Configuration of the Cooking Heater The cooking heater 1 shown in Fig. 1 is configured as a gas stove equipped with a gas burner as a heating unit. In Fig. 1, the lower left diagonal, upper right diagonal, lower right diagonal, and upper left diagonal are defined as the front, rear, right, and left sides of the cooking heater 1, respectively. Specifically, in the plate surface direction of the top plate 3 configured in a plate shape, the short side direction is the front-rear direction, and the long side direction is the left-right direction. The plate thickness direction of the top plate 3 is the up-down direction.

[0025] The cooking heater 1 shown in Fig. 1 is configured as a gas stove equipped with a gas burner. The cooking heater 1 includes an appliance body 2 having a substantially rectangular parallelepiped shape. A top plate 3 (top board) is attached to the upper part of the appliance body 2. On the top plate 3, a right burner 4 is provided at the front right (position near the right end and the front end), a left burner 5 is provided at the front left (position near the left end and the front end), and a rear burner 6 is provided at the center rear side. Although not described in detail, each of the various burners 4 to 6 is provided with an igniter 27 (see Fig. 2) for ignition. At a position near the rear end on the top plate 3, a grill exhaust port 7 communicating with a grill compartment (not shown) installed in the appliance body 2 is provided.

[0026] A grill door 8 is provided at the center of the front surface of the appliance body 2. The grill door 8 is slidable in the front-rear direction by a rail unit (not shown) provided in the grill compartment. A handle portion 9 is provided at the upper part of the front surface of the grill door 8.

[0027] A power switch 10 to be pressed to turn on and off the power of the cooking heater 1 is provided at the upper right corner of the front surface of the appliance body 2.

[0028] Below the power switch 10, in order from the right side to the left side, circular ignition buttons 11 to 13 in a front view are provided in a horizontal row. On the left side of the grill door 8, at the same height position as the ignition buttons 11 to 13, a circular ignition button 14 in a front view is provided. The ignition button 11 is a button pressed to ignite / extinguish the right burner 4. The ignition button 12 is a button pressed to ignite / extinguish the left burner. The ignition button 13 is a button pressed to ignite / extinguish the rear burner 6. The ignition button 14 is a button pressed to ignite / extinguish the grill burner (not shown) in the grill compartment. When each of the ignition buttons 11 to 14 is pressed for ignition, it protrudes cylindrically forward from the front surface of the appliance body 2 by a well-known push-on / push-off mechanism (not shown), and rotation operation is possible in this protruding state. The user can adjust the flame of various burners 4 to 6 or the grill burner by rotating the ignition buttons 11 to 14 respectively. Below the ignition button 12, a battery replacement lamp 33 is provided. The ignition buttons 11 to 14 correspond to an example of an ignition switch and are configured to receive an ignition operation from the outside. The operation of pressing the ignition buttons 11 to 14 corresponds to an example of an ignition operation. For example, when the right burner 4 corresponding to the ignition button 11 is in the extinguished state, the operation of pressing the ignition button 11 corresponds to an example of the "ignition operation for the ignition button 11", and when the operation of pressing the ignition button 11 (ignition operation) is performed when the right burner 4 is in the extinguished state, the right burner 4 corresponding to the ignition button 11 is ignited.

[0029] A panel 16 is provided below the battery replacement lamp 33, and a panel 17 is provided below the ignition button 14. When the panel 16 is pushed in with a finger or the like in the state shown in FIG. 1, the stove operation unit 22 fixed to the back side of the panel 16 is displaced and pulled out so as to rotate forward with the vicinity of the lower end of the panel 16 as a base point by a well-known push-on / push-off mechanism (not shown) (see the two-dot chain line diagram in FIG. 1). Similarly, when the panel 17 is pushed in with a finger or the like, the grill operation unit (not shown) fixed to the back side of the panel 17 is displaced and pulled out so as to rotate forward with the vicinity of the lower end of the panel 17 as a base point by the same push-on / push-off mechanism as described above.

[0030] FIG. 2 schematically shows the electrical configuration of the cooking appliance 1. The cooking appliance 1 shown in FIG. 2 is a battery-powered cooking appliance in which power from the battery 15 is supplied to the display unit 91.

[0031] As shown in FIG. 2, the power supply circuit 81 is configured as a known power supply circuit and corresponds to an example of a power supply unit that supplies power. The power supply circuit 81 has a function of generating a power supply voltage to be applied to various circuits based on the power supply from two dry batteries 15 mounted in a battery box (not shown). The cooking appliance 1 is also provided with a detection circuit for detecting the dry battery voltage as a circuit associated with the power supply circuit 81. The switch input circuit 82 is a circuit that detects the pressing of the power switch 10.

[0032] The cooking appliance 1 shown in FIG. 1 is configured to switch between a power-off state and a power-on state by operating the power switch 10. Specifically, when the switch input circuit 82 detects the pressing of the power switch 10 while the power supply circuit 81 is in the power-off state, the power supply circuit 81 operates to switch to the power-on state. The power-off state is a state in which the power is off and various operations such as the ignition buttons 11 to 13, the operation unit 22 for the stove, and the operation unit 23 for the grill are not accepted, and it is also a state that does not allow continuous supply of power based on the battery 15 to the display unit 91 etc. (specifically, a state in which the power based on the battery 15 is cut off). The power-on state is a state in which the power is on and current can flow through various circuits of the cooking appliance 1, and it is a state that allows continuous supply of power based on the battery 15 to the display unit 91 etc. The power-on state is also a state in which various operations such as the ignition buttons 11 to 13, the operation unit 22 for the stove, and the operation unit 23 for the grill are accepted and operate.

[0033] When the switch input circuit 82 detects the pressing of the power switch 10 when the power supply circuit 81 is in the power-on state, the power supply circuit 81 may switch itself to the power-off state. The power supply circuit 81 may automatically switch to the power-off state when a certain period of time has elapsed during the non-use period of the cooking appliance 1 (for example, during the period when all the gas burners of the cooking appliance 1 are in the extinguished state and no operation is performed on a predetermined operation unit of the cooking appliance 1). In this case, the power supply circuit 81 itself may function as a switching unit and operate to automatically switch to the power-off state when the cooking appliance 1 is not in use (for example, when the above non-use period has elapsed for a certain period of time). Alternatively, the control unit 71 or the like may function as a switching unit and control to automatically switch the power supply circuit 81 to the power-off state when the cooking appliance 1 is not in use (for example, when the above non-use period has elapsed for a certain period of time). It should be noted that the above example is merely an example, and the non-use period may be the period when all the gas burners of the cooking appliance 1 are in the extinguished state.

[0034] In FIG. 2, the operation unit 22 for the stove and the operation unit 23 for the grill are schematically shown as a common block, and the operation unit circuit 83 is schematically shown as a common block. Specifically, however, the operation unit 22 for the stove and the operation unit 23 for the grill are individually provided at each position. And the operation unit circuit 83 has individual circuits provided individually corresponding to each of the operation unit 22 for the stove and the operation unit 23 for the grill. The operation unit 22 for the stove includes a plurality of operation switches configured to be operable from the outside (for example, a pressing operation). The operation switch is configured as, for example, a push button. The operation unit 22 for the stove is also provided with a display capable of 7-segment display, a plurality of lamps, and the like. Similarly, the operation unit 23 for the grill includes a plurality of operation switches, a 7-segment display unit, a plurality of lamps, and the like.

[0035] As shown in FIG. 2, the cooking heater 1 includes a control device 70. The control device 70 includes a control unit 71, a ROM 72, a RAM 73, etc. The control unit 71 is an information processing device that performs various calculations and information processing, and is configured to include an information processing device such as a CPU. The control unit 71 is a part that can comprehensively control various operations of the cooking heater 1, and can perform the controls shown in FIGS. 3 and 4 described later, for example. The ROM 72 stores various control programs of the cooking heater 1 and the like. The RAM 73 stores various information of the cooking heater 1 and the like.

[0036] The non-volatile memory unit 74 is a memory unit that retains the content stored therein even when the power circuit 81 is switched to the power-off state described above. The non-volatile memory unit 74 is constituted by a known non-volatile memory such as a flash memory, for example.

[0037] A power circuit 81, a switch input circuit 82, an operation unit circuit 83, an ignition button operation circuit 84, an igniter circuit 85, a solenoid valve circuit 86, a display unit 91, etc. are respectively connected to the control device 70. The control device 70 has a function of controlling the igniter circuit 85, the solenoid valve circuit 86, the display unit 91, etc. The display unit 91 may be a lamp such as an LED lamp (for example, the lamp 33 or other lamps), or other display devices.

[0038] The operation unit circuit 83 detects various operations of the operation unit 22 for the cooking range and the operation unit for the grill (not shown) and inputs them to the control device 70. The ignition button operation circuit 84 detects the pressing and turning operations of the ignition buttons 11 to 14 and inputs them to the control device 70. The igniter circuit 85 receives a command from the control device 70 and drives the igniters 27 provided for each of the various burners 4 to 6 and the grill burner. The solenoid valve circuit 86 receives a command from the control device 70 and controls various solenoid valves 28 such as safety valves and flame adjustment valves provided in the gas supply pipes (not shown) of each of the various burners 4 to 6 and the grill burner. In FIG. 2, a plurality of igniters are collectively referred to as the igniter 27, and a plurality of solenoid valves are collectively referred to as the solenoid valve 28.

[0039] In addition to the circuit shown in Fig. 2, the cooking heater 1 can be provided with an audio device including an audio synthesis circuit and a speaker, a buzzer circuit, a communication device, etc., and the illustration of these circuits is omitted in Fig. 2.

[0040] 2. Electrical operation of the cooking heater The following explanation relates to the electrical operation of the cooking heater 1. The programs for executing the control shown in Figs. 3 and 4 are stored in a storage unit such as the ROM 72, for example. The control unit 71 executes the control shown in Figs. 3 and 4 based on the above programs.

[0041] In this configuration, the control unit 71 operates to control the display unit 91 based on the information stored in the non-volatile storage unit 74. Specifically, when the cooking heater 1 is switched from the power-off state to the power-on state, the control unit 71 performs an initial operation of setting the display unit 91 to the state determined by the display setting information. After the initial operation, the control unit 71 operates to set the display unit 91 to the state in which the setting of the function setting information is specified (more specifically, the state in which the setting of the safety function setting information is specified). Specific examples of this control will be described below.

[0042] In this embodiment, power is supplied from the battery 15 to the power supply circuit 81, and the power supply circuit 81 outputs power for operating the electrical equipment in the cooking heater 1 based on the power supplied from the battery 15. The power-on state is a state in which power is supplied from the power supply circuit 81 to the control device 70, and is a state in which a predetermined voltage (operating voltage V1) is supplied from the power supply circuit 81 to the control device 70. That is, power is output from the power supply circuit 81 in the power-on state, and the power based on this output is supplied to the control unit 71. The power-off state is a state in which the power supply from the power supply circuit 81 to the control device 70 is cut off. That is, in the power-off state, the power based on the power supply circuit 81 is not supplied to the control unit 71, and the power supply to the control unit 71 is cut off. When the cooking heater 1 is switched from the power-off state to the power-on state, it means that it is switched from a state where power is not supplied from the power supply circuit 81 to the control device 70 to a state where power is supplied, and it is switched from a state where power is not supplied to the control unit 71 to a state where power is supplied. The power supply circuit 81 may be configured to automatically switch to the power-on state when an ignition operation is performed on any one of the ignition buttons 11 to 14 (ignition switches) in the above power-off state. In this case, the power button may be provided or may be omitted. The power supply circuit 81 may be configured to switch to the power-on state when an ignition operation is performed on the power switch in the above power-off state.

[0043] When the power supply circuit 81 enters the above power-on state, the control unit 71 starts the control of FIG. 3. After starting the control of FIG. 3, the control unit 71 first reads out the display setting information stored in the non-volatile memory unit 74 in step S1.

[0044] The non-volatile memory unit 74 stores display setting information and function setting information. The display setting information is setting information that determines whether a predetermined display of the display unit 91 is enabled or disabled. The predetermined display may be, for example, "lighting of a lamp", or other displays. In the representative example described below, the lighting of the lamp constituting the display unit 91 is the predetermined display. The setting information for enabling the predetermined display is the first information indicating the setting to "light" the lamp, and the setting information for disabling the predetermined display is the second information indicating the setting to "turn off" the lamp. It is desirable that the stored display setting information can be changed by an operation on the cooking heater 1.

[0045] The function setting information is setting information that determines whether a specific function is enabled or disabled. The function setting information includes safety function setting information that determines whether a predetermined safety function is enabled or disabled. In a representative example, the "predetermined safety function" is a function of extinguishing a gas burner when the combustion state of any gas burner continues for a predetermined time. The setting information for enabling the "predetermined safety function" is the third information indicating the setting to execute the "predetermined safety function", and the setting information for disabling the "predetermined safety function" is the fourth information indicating the setting not to execute the "predetermined safety function".

[0046] After step S1, in step S2, the control unit 71 determines whether the display setting information stored in the non-volatile memory unit 74 indicates a setting for enabling the predetermined display (specifically, a setting to light the lamp). If it is determined that the display setting information indicates a setting for enabling the predetermined display (a setting to light the lamp), the process proceeds to step S3, and the display unit 91 is caused to perform the predetermined display (for example, lighting of the lamp). If, in step S2, the control unit 71 determines that the display setting information stored in the non-volatile memory unit 74 indicates a setting for disabling the predetermined display (a setting to turn off the lamp), the process proceeds to step S4, and the display unit 91 is set to a state other than the predetermined display (for example, the off state of the lamp) without causing the display unit 91 to perform the predetermined display. In this way, at the time of steps S3 and S4, the operation of the display unit 91 is determined.

[0047] After step S3 or step S4, in step S5, the control unit 71 reads out the specific function setting information stored in the non-volatile memory unit 74. After step S5, in step S6, the control unit 71 determines whether the specific function setting information stored in the non-volatile memory unit 74 indicates a setting that enables a specific function (specifically, a setting that enables a predetermined safety function). If it is determined that the specific function setting information indicates a setting that enables a specific function (a setting that enables a predetermined safety function), the process proceeds to step S7, and the display unit 91 is caused to perform a first display (for example, turning on a lamp) indicating that the specific function is enabled.

[0048] In step S6, if the control unit 71 determines that the specific function setting information indicates a setting that disables a specific function (a setting that disables a predetermined safety function), the process proceeds to step S8, and the display unit 91 is caused to perform a second display (for example, turning off a lamp) indicating that the specific function is disabled.

[0049] In step S6, if the control unit 71 determines that there is some error in reading the specific function setting information (for example, when neither the setting information enabling a predetermined safety function nor the setting information disabling it is stored), the process proceeds to step S9, and the display unit 91 is caused to perform a third display (for example, flashing a lamp) indicating that there is an error.

[0050] The control unit 71 makes a determination in step S10 after any one of steps S7, S8, and S9, and determines whether there has been a switching operation to switch the setting of a specific function. The switching operation is, for example, a predetermined operation on the operation unit 22 for the stove, and includes at least a predetermined first operation and a predetermined second operation. When the first operation is performed on the operation unit 22 for the stove, the control unit 71 updates the specific function setting information stored in the non-volatile storage unit 74 so as to include information indicating a setting that enables the specific function (a setting that enables a predetermined safety function). When the second operation is performed on the operation unit 22 for the stove, the control unit 71 updates the specific function setting information stored in the non-volatile storage unit 74 so as to include information indicating a setting that disables the specific function (a setting that disables a predetermined safety function).

[0051] In step S10, the control unit 71 determines whether the above-described switching operation has been performed. If it is determined that the operation has been performed, the process proceeds to step S11. If the control unit 71 determines in step S10 that the above-described switching operation has not been performed, the process proceeds to step S17.

[0052] In step S11, the control unit 71 determines whether the switching operation determined in step S10 to have occurred is the first operation or the second operation. If it is determined that the switching operation is the first operation (an operation to switch the specific function to be enabled), the process proceeds to step S12, and the display unit 91 is caused to perform a first display (for example, turning on a lamp) indicating that the specific function is enabled. If the control unit 71 determines in step S11 that the switching operation is the second operation (an operation to switch the specific function to be disabled), the process proceeds to step S13, and the display unit 91 is caused to perform a second display (for example, turning off a lamp) indicating that the specific function is disabled. If the control unit 71 determines in step S11 that there has been some error, the process proceeds to step S14, and the display unit 91 is caused to perform a third display (for example, flashing a lamp) indicating that there has been an error.

[0053] After steps S12, S13, and S13, in step S15, the control unit 71 stores the specific function setting information so as to update it to the content switched by the above switching operation. After step S15, the control unit 71 stores the display setting information in step S16. Note that if an operation to switch the above display setting information is performed before step S16, in step S16, the display setting information is updated to the content corresponding to the operation.

[0054] After determining No in step S10 or after step S16, in step S17, the control unit 71 determines whether the setting of the specific function setting information in the non-volatile memory unit 74 is "setting to enable the specific function". If it is determined that it is "setting to enable the specific function" or "error state", in step S18, the control unit 71 determines whether the specific function execution condition is satisfied. In step S18, if the control unit 71 determines that the specific function execution condition is satisfied, in step S19, the control unit 71 executes the specific function. If in step S18, the control unit 71 determines that the specific function execution condition is not satisfied, step S19 is skipped and the process returns to step S10.

[0055] In a representative example, the specific function is a predetermined safety function (first safety function), and the predetermined safety function is, for example, "a function of extinguishing the gas burner when the combustion state of the gas burner continues for a predetermined time". And in the representative example, the specific function execution condition is "the combustion state of any one of the gas burners has continued for a predetermined time (first time)". Therefore, in the representative example, in step S18, the control unit 71 determines whether "the combustion state of any one of the gas burners has continued for a predetermined time". If it is determined that the combustion state of any one of the gas burners has continued for a predetermined time, in step S19, the control unit 71 executes the safety function (specific function) to extinguish the gas burner.

[0056] When the control unit 71 determines in step S17 that it is a "setting to disable a specific function", it determines in step S20 whether the normal function execution condition is satisfied. When the control unit 71 determines in step S20 that the normal function execution condition is satisfied, it executes the normal function in step S21. When the control unit 71 determines in step S20 that the normal function execution condition is not satisfied, it skips step S21 and returns the process to step S10.

[0057] In a representative example, the normal function is a predetermined second function (second safety function), and the predetermined second function is, for example, "a function of extinguishing a gas burner when the combustion state of the gas burner continues for a second hour". The second hour is a time longer than the above-mentioned predetermined time (first hour). In the representative example, the normal function execution condition is "the combustion state of any one of the gas burners has continued for a second hour". Therefore, in the representative example, the control unit 71 determines in step S20 whether "the combustion state of any one of the gas burners has continued for a second hour", and when it determines that the combustion state of any one of the gas burners has continued for a second hour, it executes the normal function to extinguish that gas burner in step S21.

[0058] 3. Examples of effects When the cooking heater 1 switches from the power-off state to the power-on state, it can perform an initial operation to reflect the display setting information before reflecting the setting of the function setting information on the display unit 91. This cooking heater 1 can solve the problem that the state of the display unit 91 is not determined until the setting of the function setting information is reflected, and can more quickly reflect the content of the non-volatile memory on the display unit after the power is turned on.

[0059] The heating cooker 1 can display the setting content of the safety function setting information using the display unit 91. However, for the confirmation and reflection of the safety function setting information stored in the non-volatile memory unit 74, a method with higher accuracy (for example, a method with additional measures such as error checking or some measures to prevent malfunction) is desired. However, the more the accuracy is improved, the more concerned one is that it will take time for reading and reflection, and there is a concern that the state of the display unit 91 will not be determined until the reflection is completed, which will impair the convenience of the user. In contrast, even if it takes time for the setting of the safety function setting information to be reflected in the heating cooker 1 described above, before that, the display setting information can be quickly reflected on the display unit, so that the user can be prevented from waiting for a long time without being reflected in the display. Moreover, the heating cooker 1 described above can perform an initial check regarding a specific function in step S5 after determining the display in step S3 or step S4, and reflect the check result in steps S7, S8, and S9. Therefore, even if the display setting made in steps S2 to S4 deviates from the content that should be originally displayed, or an error occurs due to a defect in the display setting information, the display can be updated in steps S7, S8, and S9 to correct it to the appropriate content.

[0060] When the safety function of the heating cooker 1 is activated, the continuous combustion time of the gas burner can be limited to a predetermined time. For this type of safety function, there is a concern that it will take time for reading and reflection in order to ensure accuracy. However, even if it takes time for the setting to be reflected in the heating cooker 1, before that, the display setting information can be quickly reflected on the display unit 91.

[0061] The cooking appliance 1 can automatically switch to the power-off state when not in use, thus suppressing power consumption. However, for this type of cooking appliance, the frequency of automatic switching to the power-off state increases, and the frequency of switching to the power-on state also increases. Therefore, if it takes a long time for the settings to be reflected every time the power is turned on, it will greatly reduce the convenience for the user. However, the cooking appliance 1 can surely suppress the setting reflection time, so it can achieve both suppression of power consumption and improvement of user convenience.

[0062] <Other Embodiments> The present invention is not limited to the embodiments described above and in the drawings. For example, the features of the above-described or below-described embodiments can be combined in any non-contradictory manner. Also, any feature of the above-described or below-described embodiments can be omitted if it is not explicitly stated as essential. Furthermore, the above-described embodiments may be modified as follows.

[0063] In the above-described embodiment, as an example of the initial check, a check for determining whether a specific function is valid or invalid was exemplified, but it is not limited to this example. The initial check may be a check for confirming whether the control unit (e.g., a microcomputer) operates normally by a known method, or a check for confirming whether the sensor provided in the cooking appliance operates normally by a known method. Also, in the above-described embodiment, a predetermined safety function was exemplified as an example of the specific function, but a function other than the predetermined safety function may be the specific function. For example, the initial check may be a check for determining whether a predetermined power-saving mode is valid or invalid, a check for determining whether the setting for interlocking the ventilation fan is valid or invalid, or a check for determining whether other functions are valid or invalid.

[0064] In the above-described embodiment, as an example of a predetermined safety function, the function of extinguishing the gas burner when the combustion state of the gas burner continues for a predetermined time was exemplified, but other safety functions may also be used. For example, when the combustion state of the gas burner continues for a predetermined time, a function in which the control device 70 and the output device (for example, the display unit 91 and the voice output unit (a speaker or a buzzer, etc. not shown)) cooperate to perform a predetermined notification (for example, voice output or display of a warning message, sounding of a buzzer sound, etc.) may be a predetermined safety function. Note that in this specification, "when the combustion state of the gas burner continues for a predetermined time" may mean "when one gas burner continues to burn for a predetermined time", or "when the state in which at least any one of the gas burners is burning continues for a predetermined time".

[0065] It should be considered that the embodiments disclosed this time are illustrative in all respects and not restrictive. The scope of the present invention is not limited to the embodiments disclosed this time, and it is intended that all modifications within the scope indicated by the claims or within the scope equivalent to the claims are included.

Explanation of Reference Numerals

[0066] 1: Heating cooker 10: Power switch 15: Battery 70: Control device 71: Control unit 74: Non-volatile memory unit 81: Power supply circuit 91: Display unit

Claims

1. A cooking heater that switches between a powered-on state and a powered-off state, comprising: a display unit; an operation unit; a non-volatile memory unit that stores display setting information for determining whether a predetermined display of the display unit is enabled or disabled, and specific function setting information for determining whether a first safety function is enabled or disabled; a control unit that controls the display unit based on the information stored in the non-volatile memory unit, and updates the specific function setting information stored in the non-volatile memory unit so as to include information indicating a setting for enabling the first safety function when a first operation is performed on the operation unit, and updates the specific function setting information stored in the non-volatile memory unit so as to include information indicating a setting for disabling the first safety function when a second operation is performed on the operation unit; and having the first safety function is a function of extinguishing the gas burner when the combustion state of the gas burner continues for a predetermined time; the control unit when the cooking heater switches from the powered-off state to the powered-on state, reads the display setting information stored in the non-volatile memory unit before an initial check including a check for determining whether the first safety function is enabled or disabled is completed, and performs an initial operation of setting the display unit to the state determined by the display setting information; after the initial operation, reads the specific function setting information stored in the non-volatile memory unit, and when the specific function setting information indicates a setting for enabling the first safety function, causes the display unit to perform a first display indicating that the first safety function is enabled, and when the specific function setting information indicates a setting for disabling the first safety function, causes the display unit to perform a second display indicating that the first safety function is disabled Cooking heater.

2. The cooking heater is a battery-powered cooking heater in which power from a battery is supplied to the display unit, the powered-on state is a state in which power supply from the battery to the display unit is permitted, and the powered-off state is a state in which power supply from the battery to the display unit is not permitted, further comprising a switching unit that automatically switches to the powered-off state when the cooking heater is not in use The cooking heater according to claim 1.

3. An ignition switch that receives an ignition operation from the outside, A power supply circuit that receives power from a battery and outputs power for operating electrical equipment in the cooking heater, having, The power-on state is a state in which power is supplied to the control unit based on the power output from the power supply circuit, and the power-off state is a state in which the power supply from the power supply circuit to the control unit is cut off. The power supply circuit switches to the power-on state when the ignition operation is performed on the ignition switch in the power-off state. The cooking heater according to claim 1 or claim 2.

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