JP2021001705A - Heating cooker - Google Patents

Abstract

To provide a heating cooker A capable of certainly performing the initial setting of a motor 6 corresponding to each spare part when replacing electric valves 41, 42, 43, and 44, and capable of realizing a predetermined heating power after the replacement that is the same as that of before the replacement.SOLUTION: A heating cooker A changes the supply amount of a fuel gas by a rotation angle of a motor 6 to adjust the heating power of burners 11, 12, 13, and 14, and includes an electric valves 41, 42, 43, and 44 in which information on a rotation angle realizing a predetermined heating power within a range from extinction to high fire power is set in advance. A control means 9 makes it impossible to ignite the burners 11, 12, 13, and 14 until an initial setting for storing the information on the rotation angle set in advance of the motor 6 of the replaced electric valves 41, 42, 43, and 44 is performed or until it is switched to a mode performing the initial setting, when replacing the electric valves 41, 42, 43, and 44.SELECTED DRAWING: Figure 1

Description

The present invention relates to an electric valve that adjusts the thermal power of a burner by changing the supply amount of fuel gas according to the rotation angle of the motor, and an electric valve motor that realizes a predetermined thermal power within the range from fire extinguishing to high heat. The present invention relates to a heating cooker provided with a control means for storing information and outputting a thermal power adjustment signal for rotating the motor to the motor.

Conventionally, as this type of cooking cooker, it is known that the motor of an electric valve is preset with information on the rotation angle for realizing the predetermined thermal power (see, for example, Patent Document 1). In this type, a rotating disc having a communication hole that rotates with the motor and a fixed disc that is in close contact with the rotating disc and has a communication hole are provided in the electric valve, and the communication hole of the rotating disc and the fixed disc are provided. Fuel gas is supplied to the burner through the communication hole. In the thermal power adjustment, the control means outputs a thermal power adjustment signal to the motor to rotate the motor, and changes the degree of overlap between the communication holes of the rotating rotating disc and the communication holes of the fixed disc to change the fuel gas supply amount. It is done by letting.

By the way, the electric valve may be replaced due to malfunction or failure due to aging. At that time, the repair company replaces it with a spare part, but even if the electric valve has the same part number, there are variations in the dimensions of the components, etc., so after replacing the electric valve, the target fuel gas supply amount is realized. In some cases, the specified firepower may not be produced. Therefore, when the electric valve is replaced, an initial setting is made to store information on the rotation angle of the motor in the control means so that the desired amount of combustion gas is supplied. In order to facilitate this initial setting, information on the rotation angle of the motor is affixed to each accessory, for example, as a QR label, a bar code, or printed on an instruction manual or the like. The repair company inputs the above information into the control means and performs initial setting to store the information.

However, in the conventional cooking cooker, the burner can be ignited even when the electric valve is replaced, and the cooking cooker can be used without initial setting. Therefore, if the repair company forgets to make the initial settings, the thermal power will be adjusted based on the information about the rotation angle set in the motor of the electric valve before replacement, and the thermal power after replacement of the electric valve will be before replacement. It was possible that the firepower was different from the prescribed firepower.

Japanese Unexamined Patent Publication No. 2014-81108

In view of the above points, the present invention can reliably perform the initial setting of the motor corresponding to each accessory when the electric valve is replaced, and can realize the same predetermined thermal power as before the replacement even after the replacement of the electric valve. The challenge is to provide a cooker.

In order to solve the above problems, the present invention realizes an electric valve that adjusts the thermal power of the burner by changing the supply amount of fuel gas according to the rotation angle of the motor, and a predetermined thermal power within the range from fire extinguishing to high heat. A heating cooker equipped with a control means that stores information on the rotation angle of the motor of the electric valve and outputs a thermal power adjustment signal for rotating the motor to the motor, and the motor of the electric valve realizes the predetermined thermal power. In the case where the information regarding the rotation angle to be used is preset, the control means receives the replacement of the electric valve until the initial setting for storing the information regarding the preset rotation angle of the motor of the replaced electric valve is performed or. It is characterized in that the burner cannot be ignited until the mode for performing the initial setting is switched.

According to the present invention, when the electric valve is replaced, at least the burner corresponding to the replaced electric valve cannot be ignited until the initial setting of the replaced electric valve is performed or the mode is switched to the mode for performing the initial setting. Therefore, it is possible to prevent problems such as failure of cooking due to the inability to ignite the burner, the amount of fuel gas supplied as intended is not realized, and the predetermined thermal power is not generated. Therefore, when the electric valve is replaced, the initial setting of the motor corresponding to each accessory can be surely performed, and the same predetermined thermal power as before the replacement is realized even after the replacement of the electric valve.

The block diagram which shows one Embodiment of the cooking apparatus of this invention. The flowchart which shows the control after the replacement of the electric valve by the control means of the cooking apparatus shown in FIG.

With reference to FIG. 1, the cooking cooker A of the present embodiment is a stove with three grills, and has three stove burners 11, 12, and 13 and a total of four burners for grilling 14. I have. Each burner 11, 12, 13, 14 is provided at the downstream end of each one of the gas flow paths 31, 32, 33, 34 branched into four paths on the downstream side of the main valve 2, and is provided for fuel gas. It is possible to supply. Electric valves 41, 42, 43, 44 are interposed in the gas flow paths 31, 32, 33, and 34 on the upstream side of the burners 11, 12, 13, and 14. A governor 5 is interposed upstream of the electric valve 44 in the gas flow path 34 provided with the grill burner 14, and the fuel gas flowing into the gas flow path 34 is electrically adjusted after being adjusted by the governor 5. It is supplied to the valve 44.

Each of the electric valves 41, 42, 43, 44 includes a motor 6, a rotating disk 7 that rotates together with the rotating shaft of the motor 6, and an electromagnetic safety valve 8 that is interlocked with the rotating shaft of the motor 6 via a cam. Further, although not shown, each of the electric valves 41, 42, 43, 44 also includes a fixed disc that is in close contact with the rotating disc 7. Communication holes are formed in the rotating disc 7 and the fixed disc, respectively. Due to the rotation of the motor 6, the communication holes of the rotating disc 7 and the communication holes of the fixed disc overlap each other, and fuel gas is supplied to the burners 11, 12, 13, and 14 through the passage formed by the overlap, and the motor 6 The amount of fuel gas supplied to each of the burners 11, 12, 13, and 14 can be changed by changing the degree of overlap between the communication hole of the rotating disk 7 and the communication hole of the fixed disk according to the rotation angle of. For this purpose, information regarding the rotation angle for realizing a predetermined thermal power within the range from fire extinguishing to high heat is preset in the motor 6 of each of the electric valves 41, 42, 43, 44.

Further, the cooking cooker A includes a main valve 2 and a control means 9 for controlling the operation of each of the electric valves 41, 42, 43, 44. The control means 9 is composed of, for example, a microcomputer including a CPU, a ROM, a RAM, an A / D converter, an interface, and the like. The control means 9 stores information on the rotation angle of the motor 6 of each of the electric valves 41, 42, 43, 44 that realizes a predetermined thermal power within the range from fire extinguishing to high heat, and sends a thermal power adjustment signal for rotating the motor 6. Output to the motor 6. Further, the control means 9 is provided with an operation unit 10 such as a point fire extinguishing switch for turning on / off the power of the cooking cooker A, point fire extinguishing of each burner 11, 12, 13 and 14, and adjusting the heating power, and a heating power adjusting button. The signal is input.

When the operation unit 10 is operated to turn on the power of the cooking cooker A and the ignition instruction of the desired burner is input to the control means 9, the main valve 2 is opened and the electric valve corresponding to the burner is opened. It operates and the electromagnetic safety valve 8 opens. Further, the motor 6 rotates to the rotation angle at the time of ignition by the thermal power adjustment signal output from the control means 9. Then, fuel gas is supplied to the burner through the gas flow path and the passage formed by overlapping the communication hole of the rotating disk 7 and the communication hole of the fixed disk, and the burner is ignited by the spark of the sparker. After that, when the operation unit 10 is operated and an instruction for adjusting the thermal power is input to the control means 9, the motor 6 is rotated by the thermal power adjustment signal output from the control means 9 so as to realize the desired thermal power. The amount of fuel gas supplied to the burner is changed. Then, when the operation unit 10 is operated and an instruction to extinguish the fire is input to the control means 9, the motor 6 of the electric valve rotates to the fire extinguishing position by the thermal power adjustment signal output from the control means 9, and the electromagnetic safety valve 8 And the main valve 2 is closed, and the burner is extinguished.

By the way, each of the electric valves 41, 42, 43, 44 may be replaced due to malfunction or failure due to aging. At that time, the repair company replaces it with a spare part, but for the reason described above, the initial setting is performed so that the information regarding the rotation angle of the motor 6 is stored in the control means 9. However, in the conventional cooking cooker, as described above, the corresponding burners 11, 12, 13 and 14 can be ignited even when any of the electric valves 41, 42, 43 and 44 is replaced. If the initial settings were not made, the thermal power after replacement of the spare parts could be different from the predetermined thermal power before replacement.

Therefore, in the cooking device A of the present embodiment, the control means 9 provides information on a preset rotation angle of the motor 6 of the replaced electric valve when any of the electric valves 41, 42, 43, and 44 is replaced. The burner provided at the downstream end of the gas flow path provided with the replaced electric valve is disabled until the initial setting is performed or the mode is switched to the mode for performing the initial setting. Due to the inability to ignite the burner, it is possible to prevent problems such as cooking failure due to the inability to supply the desired amount of fuel gas and the specified thermal power, and to prompt the repair company to make the initial settings. You can prevent forgetting to set. Information on the rotation angle of the motor 6 is affixed to the electric valve of the accessory for each accessory, for example, as a QR label, a bar code, or the like, or is printed in an instruction manual or the like. Therefore, the repair company can input the above information into the control means 9 and make an initial setting to store the information.

When the initial setting is performed by the control means 9, the control means 9 is switched to the initial setting mode when the repairer performs a transition operation to the mode in which the repairer performs the initial setting after replacing the electric valve. Instead, make the initial settings.

The initial setting of the control means 9 by the operation of shifting to the initial setting mode will be described with reference to FIG. In the control of the control means 9 shown in FIG. 2, the auxiliary motor 6 is a stepping motor, which can adjust the thermal power in a plurality of stages within the range from fire extinguishing to high heat. Then, it is premised that the rotating shaft of the auxiliary motor 6 shipped as a replacement is set to a state of being stopped at a rotation angle that does not stop when the cooking cooker A is actually used.

When the power is turned on (STEP 1) after the replacement with the accessory, the control means 9 shown in FIG. 1 determines whether or not the rotation shaft of the motor 6 of the replaced electric valve is in the state of being stopped at the above rotation angle, that is, It is determined whether or not it is in the shipping position (STEP2). If it is determined that the product is in the shipping position, the burner provided in the gas flow path provided with the accessory is disabled. That is, the ignition lock is turned on (STEP 3). Next, when the repair company performs the operation of shifting to the initial setting mode of the electric valve (STEP 4), the control means 9 shifts to the initial setting mode of the electric valve to perform the initial setting, and at the same time, the burner that has been disabled to ignite. Allows ignition. That is, the ignition lock is turned off (STEP 5). The initial setting of the electric valve by the control means 9 automatically reads the QR label, the bar code, etc. attached to the accessory, and stores the information on the preset rotation angle of the motor 6 of the replaced electric valve. Is carried out by. In addition, when the repair company does not shift to the initial setting mode of the electric valve in STEP 4, the burner cannot be ignited, so that the target fuel gas supply amount cannot be realized and the predetermined thermal power is reduced. It is possible to prevent problems such as cooking failure due to the absence of the fuel, and to urge the repair company to shift to the initial setting mode of the electric valve.

After that, when the power is turned off (STEP 6), the control after the replacement of the series of electric valves is completed. As described above, when replacing at least one of the electric valves 41, 42, 43, 44, the initial setting of the motor 6 corresponding to each accessory can be surely performed, and the cooking cooker A is an electric valve. Even after the replacement of at least one of 41, 42, 43, and 44, the same predetermined thermal power as before the replacement can be realized.

When the control means 9 determines in STEP 2 that the rotation shaft of the motor 6 is the stop position when the cooker A is used, the electric valves 41, 42, 43, 44 shown in FIG. 1 are supplemented. Since the equipment has not been replaced, the point fire extinguishing switch remains ON / OFF freely, and if it is turned ON (STEP7), the burner is ignited (STEP8), and if it is turned OFF (STEP9), the fire is extinguished. (STEP10), and shift to STEP6.

Although the present invention has been described above with respect to one embodiment, the present invention is not limited to the above embodiment. For example, the configuration and shape of the rotating disc 7 and the fixed disc included in the electric valve 6 and the shape of the communication hole formed in each disc are not particularly limited. Further, the inability to ignite the burners 11, 12, 13 and 14 after the replacement of the electric valves 41, 42, 43 and 44 can be notified by sound or light.

Further, in the above embodiment, the burners 11, 12, corresponding to any of the replaced electric valves 41, 42, 43, 44, until the repairer performs the initial setting operation or the transition operation to the initial setting mode, Although 13 and 14 were made unignitable, the above operation of the repair company is not always essential, and the control means 9 detects or determines that any of the electric valves 41, 42, 43, and 44 is a replaced accessory. At that time, the control means 9 can automatically read the information regarding the rotation angle of the auxiliary motor 6 and make the burner unignitable until the initial setting is completed or the transition to the initial setting mode is performed. Furthermore, the burners that cannot be ignited when any of the electric valves 41, 42, 43, and 44 are replaced are not limited to those corresponding to spare parts, and the control means 9 is the electric valves 41, 42, 43. All burners 11, 12, 13, and 14 may be non-ignitable until the initial setting is completed or the transition to the initial setting mode is performed at the time of replacement of any of, 44.

A ... Cooking cooker, 11, 12, 13 ... Stove burner (burner), 14 ... Grill burner (burner), 41, 42, 43, 44 ... Electric valve, 6 ... Motor, 9 ... Control means.

Claims (1)

Stores information on the motor rotation angle of the electric valve that adjusts the burner's thermal power by changing the fuel gas supply amount according to the motor's rotation angle, and the electric valve that achieves the specified thermal power within the range from fire extinguishing to high heat. , A heating cooker equipped with a control means for outputting a thermal power adjustment signal for rotating the motor to the motor.
The motor of the electric valve is a motor in which information on the rotation angle for realizing the predetermined thermal power is preset.
When the electric valve is replaced, the control means cannot ignite the burner until the initial setting for storing the information on the preset rotation angle of the motor of the replaced electric valve is made or until the mode is switched to the initial setting. A heating cooker characterized by

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