JP6086450B2 - Gas stove device - Google Patents

Description

  The present invention has a pan bottom sensor that detects that a cooking utensil is placed on the burner, and the ignition operation is performed on the burner in a state where the pan bottom sensor does not detect that the cooking utensil is placed. In particular, the present invention relates to a gas stove device provided with ignition prohibiting means for prohibiting ignition of a burner.

  In the gas stove device, the burner is exposed on the top plate, which is the upper surface of the device. Therefore, if ignition is performed without placing the cooking utensil on the burner, the entire flame is exposed, which is not preferable for safety. Therefore, a pan bottom sensor that detects that the cooking utensil is placed on the burner is provided, and an ignition prohibiting means that does not ignite the burner even if the ignition operation is performed without the cooking utensil being placed is provided. .

  However, there is a case where it is desired to ignite the burner temporarily without placing the cooking utensil on the burner, for example, when laver is applied. For such a case, if a forced ignition switch is provided, a normal ignition operation is performed in advance, and the forced ignition switch is pushed in a state where ignition of the burner is prohibited by the ignition prohibition means, There is known a technique in which ignition prohibition is canceled and the burner is ignited (see, for example, Patent Document 1).

JP 2013-234664 A ([0015], FIG. 2, FIG. 3)

  In the conventional gas stove device, when the burner is ignited without placing the cooking utensil on the burner, the burner is not ignited even if the normal ignition operation is performed, and then the burner is ignited by pressing the forced ignition switch. Is done. For this reason, the burner is not ignited in the familiar ignition operation of pushing the fire extinguisher button, and the burner is ignited by a push operation on the forced ignition switch that is completely different from the normal ignition operation, so it feels very strange. Become. In particular, since the cooking utensil is not placed on the burner, it feels like a flame generated by ignition suddenly occurs, so that the feeling of use becomes very bad.

  Then, this invention makes it a subject to provide the gas stove apparatus which can ignite a burner without a sense of incongruity, when a cooking utensil is not mounted on a burner in view of said problem.

In order to solve the above problems, the gas stove device according to the present invention has a pan bottom sensor that detects that a cooking utensil is placed on the burner, and this pan bottom sensor does not detect that the cooking utensil is placed. In a gas stove device provided with an ignition inhibiting means for prohibiting ignition to the burner when an ignition operation is performed on the burner in a state, a power source that includes a control unit that controls ignition to the burner and is turned on during the ignition operation A switch is provided so that energization of the control unit is started when the power switch is turned on, and a forced ignition switch that is turned on only while being pushed in the energized state is provided. the ignition operation while continuing to operate down the ignition switch is, the forced ignition Sui when energizing the control unit by the oN of the power switch is initiated Ji is the case of the ON state, by releasing the ignition prohibition by the ignition inhibiting means and permits the ignition of the burner.

  Rather than igniting the forced ignition switch alone, it is controlled by pushing the forced ignition switch as an auxiliary to the ignition operation and performing the same operation as the normal ignition operation with the forced ignition switch being pushed. Energization of the burner is started, and the controller permits the burner to be ignited when the forced ignition switch is in an on state at the start of energization.

  In addition, after ignition, the pan bottom sensor has a temperature sensor for detecting the pan bottom temperature of the cooking utensil, and the pan bottom temperature is increased or decreased among a plurality of preset temperatures by increasing or decreasing the heating power of the burner. It has a temperature control function that keeps it in either state, and after ignition with the forced ignition switch pressed, if the forced ignition switch is further pressed for a predetermined time, the bottom temperature of the set temperature is within the set temperature. You may comprise so that it may transfer to the high temperature mode maintained at the highest temperature.

  In that case, when the ignition operation is performed without pressing the forced ignition switch with the cooking utensil placed on the burner, the pan bottom temperature is set to the normal cooking temperature within the preset temperature set above. When the forced ignition switch is pressed and released after the predetermined time has elapsed after ignition with the forced ignition switch pressed and operated, The normal mode may be set.

  On the other hand, it is also possible to perform the ignition operation in a state where the forced ignition switch is pressed, and to continue ignition of the forced ignition switch and to ignite the burner when a predetermined time has elapsed.

  As is clear from the above description, the present invention permits the ignition of the burner by performing a normal ignition operation in a state where the forced ignition switch is pushed, so that the cooking utensil is placed on the burner. If not, the burner can be ignited without discomfort.

The figure which shows the external appearance of the gas stove apparatus by this invention Block diagram showing the gas pipeline to the burner Block diagram showing the configuration around the control unit Diagram showing control blow by control unit

  Referring to FIG. 1, reference numeral 1 denotes a gas stove device according to the present invention. The top plate 11 of the gas stove device 1 is provided with two left and right burners 12. Both the burners 12 are annular, and a pan bottom sensor 13 is provided in a central space extending from the bottom to the top. A temperature sensor is built in the upper end of the pan bottom sensor 13 and is held movably in the vertical direction while being biased upward. For example, when the frying pan FP is placed above the burner 12 as a cooking utensil, the upper end of the pan bottom sensor 13 is pushed downward while being in close contact with the pan bottom B of the frying pan FP by an urging force.

  When cooking is started with the frying pan FP placed in this manner, the fire extinguishing button 2 is pushed in. Then, the burner 12 is ignited and cooking can be started. In addition, the thermocouple 14 is arrange | positioned in the vicinity of the burner 12, The confirmation of the ignition of the burner 12 and generation | occurrence | production of extinction, etc. can be detected by detecting the flame of the burner 12 with this thermocouple 14. Reference numeral 10 denotes a battery box, which is configured to cover the operating power of the gas stove device 1 with a dry battery housed in the battery box 10.

  A forced ignition switch 3 is provided above the point fire extinguishing button 2. This forced ignition switch 3 is a switch for permitting ignition of the burner 12 even when the cooking utensil is not placed on the burner 12, and is pushed when performing, for example, “burring”. “Aburi” refers to an operation of, for example, laver with nori in a state where no cooking utensils are placed. Further, the forced ignition switch 3 is also pressed when cooking “high-temperature stir-fry”.

  “High-temperature stir-fry” cooking is cooking in which the temperature of the bottom B is normally high enough to correspond to emptying, for example, frying with a very small amount of food in a frying pan FP This is the case. In addition, 31 is LED.

  With reference to FIG. 2, when the fire extinguishing button 2 is pushed in, the operation rod 22 a of the heating power adjustment device 22 is pushed into the heating power adjustment device 22. The thermal power adjusting device 22 is provided with two micro switches SW1 and SW2 (not shown), and the SW1 is turned on in the middle of the movement of the operation rod 22a. Is turned on. Note that the valve body of the electromagnetic safety valve 23 is forcibly opened at the push-off position where the switch SW2 is turned on, and in this state, the valve body is attracted and held by the electromagnet in the electromagnetic safety valve 23.

  When the electromagnetic safety valve 23 is opened, gas flows into the thermal power control device 22 and flows out through the thermal power control device 22 toward the burner 12. The outflow rate is increased or decreased by operating the heating power adjustment lever 21.

  The gas flowing out from the thermal power control device 22 flows to the first on-off valve 24. An orifice 25 is connected to the first on-off valve 24 in parallel. If the first on-off valve 24 is in an open state, the gas flows further downstream without being throttled, but the first on-off valve 24 When the valve is closed, a small amount of gas defined by the orifice 25 flows downstream. Further, a second on-off valve 26 is provided downstream, and no gas is supplied to the burner 12 if the second on-off valve 26 is closed. The pan bottom sensor 13 is provided with a micro switch 13a. When a cooking utensil such as a frying pan FP is placed and the pan bottom sensor 13 is pushed down as described above, the micro switch 13a is turned on and the cooking utensil is turned on. Can be detected as being placed on the burner 12.

  Referring to FIG. 3, a control unit 4 is provided in the gas stove device 1, and holds the opening of the electromagnetic safety valve 23, opens / closes the first on / off valve 24 and the second on / off valve 26, and operates the sparker 15. At the same time, an ON signal is input to the micro switch SW2 and the micro switch 13a, and a temperature detection signal is input from the pan bottom sensor 13 and the thermocouple 14.

  With reference to FIG. 4, the control content by the control part 4 is demonstrated. When performing the ignition operation, if the normal cooking is to be performed, the fire extinguishing button 2 is pressed, and if the ignition is performed without the cooking utensil being placed, the forced ignition switch 3 (ring Press and operate the fire extinguishing button 2 in a state where the high-temperature stir-fry SW is pressed (PS). In any case, since the control unit 4 is not energized, the control unit 4 cannot detect what operation is being performed by the PS.

  When the point-extinguishing button 2 is pushed, SW1 is turned on during the pushing operation, and power from the dry battery is applied to the control unit 4 at that time. Then, the control unit 4 immediately confirms whether the forced ignition switch 3 (Aburi Hot Fried SW) is on (S1). This forced ignition switch 3 (Aburi high-temperature fried SW) is a non-locking switch that performs a momentary operation, and is turned on only during the pushing operation, and returns to the off state when the pushing operation is stopped. During normal cooking, as described above, since the forced ignition switch 3 (boiled hot stir fry SW) is not turned on, the process proceeds to S2 to check whether the micro switch 13a (no pan detection switch) is turned on. In addition, even if the forced ignition switch 3 (Aburi hot stir fry SW) is kept pressed, if the hand is released during the ignition operation, the normal ignition is performed without pressing the forced ignition switch 3 (Aburi hot stir fry SW). Since this is the same as the operation, the process proceeds to S2. Here, if the micro switch 13a (no pan detection switch) is off, the ignition operation has been performed without placing the cooking utensil, so the burner 12 is not ignited and ignition is prohibited (S3). This corresponds to the ignition prohibition means.

  On the other hand, if the micro switch 13a (no pan detection switch) is on, the cooking utensil is placed on the burner 12, so the first on-off valve 24 is opened to increase the heating power and the second on-off. The valve 26 is opened, and the sparker 15 is further operated to ignite the burner 12 (S4). When ignition of the burner 12 is confirmed by a detection signal from the thermocouple 14 (S5), the routine proceeds to normal thermal power control (ND). In this normal thermal power control (ND), the micro switch 13a (no pan detection switch) is constantly monitored (S6), and when the cookware is lifted and the micro switch 13a (no pan detection switch) is turned off, the normal thermal power is controlled. Control (ND) is exited, the first on-off valve 24 is closed, the gas flow rate is reduced by the orifice 25, and the heating power is reduced to low heat (S8). Further, in the normal thermal power control (ND), the forced ignition switch 3 (Aburi high temperature frying SW) is constantly monitored, and when the forced ignition switch 3 (Aburi high temperature frying SW) is continuously pressed for 3 seconds, The process shifts to high-temperature thermal power control (HD) described later (S7).

  When the cooking utensil is lifted by normal thermal power control (ND) and the state continues for 60 seconds (S9), the burner 12 is extinguished as a panless error (S12), but the cooking utensil is mounted again within 60 seconds. Then, the first on-off valve 24 is opened to return the heating power to a strong fire, and the normal heating power control (ND) is restored (S10, S11).

  Returning to the beginning of this flow, if the forced ignition switch 3 (Aburi Hot Stir Fry SW) is on when the control unit 4 is turned on, the process proceeds to S100 and the first on-off valve 24 is opened. Ignition is performed in the state. In this state, the oil overheat prevention function is still set to the normal mode. This oil overheat prevention function is a function of monitoring the pan bottom temperature of the cooking utensil with the pan bottom sensor 13 and adjusting the heating power by opening and closing the first on-off valve 24 so that the pan bottom temperature does not exceed the overheating temperature.

  Subsequently, if the forced ignition switch 3 (Aburi hot stir-fry SW) is in an on state for 3 seconds or longer (S101, S102), the temperature controlled by the oil overheat prevention function can be raised and high-temperature fried cooking can be performed. Switch to the high temperature mode (S103). When the micro switch 13a (no pan detection switch) is turned off, the function of lowering the heating power is canceled and the high heat is maintained (S104). Although not shown in this flow, such high-temperature thermal power control (HD) automatically extinguishes the burner 12 after 30 minutes. Further, during the transition to the high-temperature thermal power control (HD), the LED 31 is turned on or blinked to notify that the high-temperature thermal power control (HD) state is entered.

  When the forced ignition switch 3 (Aburi Hot Fried SW) is pressed in the high-temperature thermal power control (HD) state (S105), the high-temperature thermal power control (HD) is escaped and the oil overheat prevention function is returned to the normal mode. After that (S106), the routine proceeds to the above-described normal thermal power control (ND).

  In addition, when the forced ignition switch 3 (Aburi hot fried SW) is turned off before 3 seconds have passed in S101, after confirming the ignition in S5, the routine shifts to normal thermal power control (ND).

  In this case, the flow may be controlled not to flow to S5 but to flow to S3 and prohibit ignition only during the ignition operation.

  Incidentally, in the flow shown in FIG. 4, the burner 12 was ignited in advance in S100 before confirming that the forced ignition switch 3 (the high-temperature frying SW) was pressed for 3 seconds in S102. The ignition may not be performed at this timing, and it may be changed to ignite the burner 12 after confirming that the forced ignition switch 3 (Aburi Hot Fried SW) has been pressed for 3 seconds in S102.

  In addition, this invention is not limited to an above-described form, You may add a various change in the range which does not deviate from the summary of this invention.

DESCRIPTION OF SYMBOLS 1 Gas stove device 2 Point fire-extinguishing button 3 Forced ignition switch 4 Control part 12 Burner 13 Pan bottom sensor 21 Thermal power control lever 22 Thermal power control device 23 Electromagnetic safety valve 24 1st on-off valve 25 Orifice 26 2nd on-off valve

Claims (4)

When there is a pot bottom sensor that detects that a cooking utensil has been placed on the burner, and this pan bottom sensor does not detect that the cooking utensil has been placed, and the burner is ignited, to the burner In the gas stove device provided with the ignition prohibiting means for prohibiting ignition, a control unit for controlling the ignition to the burner is provided, and a power switch that is turned on in the middle of the ignition operation is provided. It is configured to start energization, and is provided with a forcible ignition switch that is turned on only while it is pressed while being energized, and the ignition operation is performed while the forced ignition switch continues to be pressed. It has been, if the forced ignition switch when the power to the control unit by the oN of the power switch is initiated is turned on, the point by the ignition inhibiting means Stove apparatus and permits the ignition of the burner to release the prohibition.   The pan bottom sensor has a temperature sensor that detects the pan bottom temperature of the cooking utensil, and the temperature control function that increases or decreases the heating power of the burner to maintain the pan bottom temperature at any one of a plurality of preset temperatures. After the ignition in the state where the forced ignition switch is pushed and operated, and further pressing the forced ignition switch for a predetermined time, the pan bottom temperature is maintained at the highest temperature among the plurality of set temperatures. The gas stove device according to claim 1, wherein   When the ignition operation is performed without pressing the forced ignition switch with the cooking utensil placed on the burner, the pan bottom temperature is set to the preset temperature for normal cooking out of the preset temperature set above. If the forced ignition switch is released before the predetermined time elapses after ignition with the forced ignition switch pressed, the normal mode is set. The gas stove device according to claim 2, wherein the gas stove device is set.   2. The gas stove according to claim 1, wherein an ignition operation is performed in a state where the forced ignition switch is pressed, and the burner is ignited when a predetermined time elapses after the forced ignition switch is continuously pressed. apparatus.

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