JP7131804B2 - Gas stove - Google Patents

Description

The present invention relates to gas stoves.

When a gas stove is installed in a kitchen, depending on the installation location, the wall of the kitchen exists on the side of the gas stove. Therefore, it was necessary to manufacture two types of gas stoves, one in which the gas burner with the smaller heating power is positioned on the right side and the other on the left side. Therefore, in a gas stove provided with at least a pair of left and right gas burners on the upper surface and a heating power control unit connected to each of the gas burners one by one for adjusting the heating power by increasing or decreasing the amount of gas supplied to the gas burners, the pair of gas burners and the thermal power adjustment unit are of the same specifications, and a thermal power limiting means is provided to limit the upper limit of the thermal power adjustment range of both thermal power adjustment units to a predetermined thermal power smaller than the maximum thermal power, and the upper limit of the thermal power adjustment range of either one There is known a gas stove that can be set to a gas burner with a smaller heating power than the other by regulating the heat (see, for example, Patent Document 1).

Japanese Patent No. 5112269

A user may purchase a gas stove based on the maximum gas output (capacity) displayed for each gas stove. In the gas stove described in Patent Document 1, the upper limit of the heating power adjustment range of one gas burner is regulated to be smaller than the maximum heating power, so there is a problem that the maximum output capability of the gas stove is reduced as a result.

SUMMARY OF THE INVENTION An object of the present invention is to provide a gas stove in which a low-performance burner can be arranged on the wall side with one type of appliance without lowering the maximum gas output performance.

The gas stove of claim 1 comprises a first burner installed on the right side of the upper surface of the appliance, a second burner installed on the left side of the upper surface of the appliance and having the same specifications as the first burner, and a gas supply to the first burner. A first heating power adjusting section for adjusting the heating power of the first burner by adjusting the supply amount, and a second heating power adjusting section for adjusting the heating power of the second burner by adjusting the amount of gas supplied to the second burner. and a gas stove in which the total maximum output of gas from the first burner and the second burner is predetermined, wherein the heating power is adjustable by the first heating power adjusting section and the second heating power adjusting section. Equipped with a first range set on the high heat side of the adjustable range and a second range with the same range width as the first range and shifted to the low heat side, the first heat power adjustment unit and the second A setting unit capable of setting the first range for one of the thermal power control units and the second range for the other, wherein the maximum output of each of the first range and the second range is set to the total maximum output.

The gas stove according to claim 2, in addition to the configuration of the invention according to claim 1, the adjustable range is divided into a predetermined number of stages, and the first range is the high heating power among the predetermined number of stages. It is preferable that the range includes the stage on the side.

The gas stove according to claim 3, in addition to the configuration of the invention according to claim 1 or 2, further includes a first thermal power operation unit that receives operation of the thermal power of the first burner, and a second thermal power operation unit that receives the operation of the thermal power of the second burner. a thermal power control unit, wherein each of the first thermal power control unit and the second thermal power control unit includes a motor driven according to the operation of each of the first thermal power control unit and the second thermal power control unit. , by driving the motor, the amount of gas supplied to the corresponding first burner or the second burner may be adjusted.

The gas stove according to claim 4, in addition to the configuration of the invention according to any one of claims 1 to 3, preferably includes a switch capable of manually switching between the first range and the second range set by the setting unit. .

A gas stove according to claim 5, in addition to the configuration of the invention according to any one of claims 1 to 4, further includes an input unit for inputting that the setting by the setting unit is completed, and whether or not there is an input by the input unit. and a limiting unit that limits the ignition of each of the first burner and the second burner or limits the fire power to a low level until the determining unit determines that the input has been made. Good.

A gas stove according to claim 6, in addition to the configuration of the invention according to any one of claims 1 to 4, comprises a sensor for detecting an obstacle within a range of a predetermined distance, and the setting unit is provided with the gas stove. state, when the sensor detects the wall of the installation location of the gas stove within the range of the predetermined distance from the gas stove, the burner closer to the wall side out of the first burner and the second burner is specified. a specifying unit, wherein the second range is set for the first thermal power adjusting unit or the second thermal power adjusting unit corresponding to the burner specified by the specifying unit, and the burner not specified by the specifying unit; It is preferable to set the first range for the first thermal power adjustment section or the second thermal power adjustment section corresponding to .

In the gas stove of claim 7, in addition to the configuration of the invention of claim 6, the sensors include a first sensor that detects an obstacle on the right side of the appliance and a second sensor that detects an obstacle on the left side of the appliance. a sensor, wherein the identifying unit identifies the first burner as the burner near the wall when the first sensor detects the wall, and when the second sensor detects the wall may identify the second burner as the burner closer to the wall.

According to the gas stove of claim 1, one of the adjustable ranges of the thermal power of the first heating power adjusting section and the second heating power adjusting section can be set to the first range and the other to the second range. For example, if there is a kitchen wall on the right side of the appliance, the second range may be set for the first heating power control section that adjusts the heating power of the first burner. In this case, the first range is set for the second thermal power adjustment section. Here, since the total maximum output of each of the first range and the second range is set to the total maximum output predetermined for the gas stove, the capacity of the first burner can be lowered without reducing the capacity of the gas stove. It can be set, and the thermal power can be adjusted in the same range width as the first range. As a result, consideration can be given to the wall side which is easily heated. In addition, even if you do not know whether the wall is on the left or right side of the appliance according to the place where the gas stove is installed, the second range can be set to either the first heat control section or the second heat control section in the setting section. Since it can be done, it is possible to reduce the capacity of the wall side burner with one type of device. As a result, since there is no need to increase the types of appliances, the management of the gas stove to be shipped is facilitated, and since there is no need to select an installation location, a user-friendly gas stove can be provided.

According to the gas stove of claim 2, in addition to the effect of the invention of claim 1, since the adjustable range is divided into a predetermined number of steps, it is easy to set the first range and the second range.

According to the gas stove of claim 3, in addition to the effects of the invention of claim 1 or 2, the first thermal power control unit and the second thermal power control unit are motor-driven. It is possible to accurately interlock with each operation of the two thermal power operation units.

According to the gas stove of claim 4, in addition to the effect of the invention according to any one of claims 1 to 3, it is equipped with a switch that can manually switch any one of the first range and the second range. Therefore, the setting unit can set the heating power adjustment range of the gas burner near the wall to the second range according to the installation location of the appliance.

According to the gas stove of claim 5, in addition to the effect of the invention according to any one of claims 1 to 4, even if the stove installation company forgets to set the setting unit when installing the gas stove, Since the gas stove limits the ignition of each of the first gas burner and the second gas burner or limits the fire power to a low level, it is possible to provide a highly safe gas stove. Moreover, since it is known that the setting by the setting unit is not completed by applying such a restriction, the setting by the setting unit can be performed.

According to the gas stove of claim 6, in addition to the effect of the invention according to any one of claims 1 to 4, the gas burner on the wall side of the first gas burner and the second gas burner is specified by the sensor, and the specified gas burner can automatically set the second range for the first thermal power control section or the second thermal power control section corresponding to . As a result, it is possible to provide a gas stove that is highly safe and easy to use.

According to the gas stove of claim 7, in addition to the effect of the invention of claim 6, it is possible to accurately detect whether the wall of the installation place is on the left or right using the first sensor and the second sensor.

1 is an overall perspective view of a gas stove 1; FIG. FIG. 2 is a cross-sectional view taken along line II shown in FIG. 1; 2 is a block diagram showing an electrical configuration of the gas stove 1; FIG. It is a graph which shows the relationship between a thermal power setting position and gas consumption. It is a flow chart of stove thermal power setting processing. 6 is a flowchart of wall detection processing; 7 is a flowchart of thermal power adjustment range setting processing; 4 is a flowchart of ignition control processing; Fig. 3 is a block diagram showing the electrical configuration of the gas stove 100 according to the second embodiment; It is a flow chart of thermal power adjustment range setting processing in a second embodiment.

First and second embodiments of the present invention will be described below. The device structures, flow charts, etc. described below are merely illustrative examples and not intended to be limiting unless specifically stated otherwise. The drawings are used to explain technical features that can be employed by the present invention. In the following explanation, left and right, front and back, and top and bottom indicated by arrows in the figure are used.

-First Embodiment-
The structure of the gas stove 1 will be described with reference to FIGS. 1 and 2. FIG. As shown in FIG. 1, the gas stove 1 is a built-in stove. A gas stove 1 includes a housing 2 and a top plate 3. A top plate 3 is installed on top of the housing 2 . The gas stove 1 including the housing 2 and the top plate 3 corresponds to the "instrument" of the present invention. On the top plate 3, a right stove burner 4 is provided on the right side, and a left stove burner 5 is provided on the left side. The right stove burner 4 and the left stove burner 5 have the same specifications. A sensor assembly 20 is provided at the center of each of the right stove burner 4 and the left stove burner 5 and is capable of coming into contact with the bottom of the pot. The sensor assembly 20 is vertically retractable and houses a thermistor 40 (see FIG. 3). Thermistor 40 senses the temperature of the cooking pot via sensor assembly 20 . A thermocouple 50 (see FIG. 3) for detecting misfire and an igniter 60 (see FIG. 3) for ignition are provided in the vicinity of each of the right and left stove burners 4 and 5, respectively. At the rear part of the top plate 3, an exhaust port 7 of a grill chamber (not shown) installed in the gas stove 1 is provided.

On the upper surface of the top plate 3, a window portion 31 is provided in the vicinity of the right front corner, and a window portion 32 is provided in the left front corner. The windows 31 and 32 are transparent areas formed in a circular shape, and transmit below the top plate 3 when viewed from above. Below the window portion 31, a right sensor 77A supported on the upper right side inside the housing 2 is arranged. A left sensor 77B supported on the upper left side inside the housing 2 is arranged below the window portion 32 . The right sensor 77A and the left sensor 77B are optical sensors. The detection wave transmitted from the transmitter receives the reflected wave from the foreign object at the receiver, and the distance to the foreign object is measured by applying the triangulation method. distance sensor. The right sensor 77A and the left sensor 77B output the measured distance to the foreign object as a distance signal to a sensor input circuit 87 (see FIG. 3), which will be described later.

As shown in FIG. 2, the right sensor 77A outputs a detection wave obliquely upward to the right of the top plate 3 through the window 31, and detects the wall when the kitchen wall is arranged on the right side of the gas stove 1. detect. The left sensor 77B outputs a detection wave diagonally upward to the left of the top plate 3 through the window 32, and detects the wall when the kitchen wall is arranged on the left side of the gas stove 1. In the example shown in FIG. 2, the wall 10 of the kitchen is positioned on the left side of the gas stove 1. As shown in FIG. In this case, the left sensor 77B detects the wall 10 located within a predetermined distance on the left side of the gas stove 1 .

As shown in FIG. 1 , a grill door 8 is provided approximately in the center of the front surface of the gas stove 1 . The grill door 8 is movably supported on the front side, and opens and closes an opening on the front side of a grill storage (not shown) provided inside the gas stove 1 . A grill burner (not shown) is provided in the grill chamber. A thermocouple 50 and an igniter 60 are also provided near the grill burner. In the area on the right side of the grill door 8, operation buttons 11 and 12, which are circular in front view, are arranged in a horizontal row in order from the right side to the left side. A power button 25 is provided directly above the operation button 11 . An operation button 13 having the same circular shape is provided at the same height position as the operation buttons 11 and 12 in the left area of the grill door 8 .

The operation button 11 is pressed to ignite and extinguish the right stove burner 4, the operation button 12 to the grill burner, and the operation button 13 to the left stove burner 5. FIG. The operation buttons 11 to 13 are substantially flush with the front surface of the gas stove 1 when the corresponding burners are extinguished (see FIG. 1). When pressed for ignition, the control circuit 70, which will be described later, executes ignition processing for the corresponding burner, and the operation buttons 11 to 13 are pushed from the front of the gas stove 1 by a known push-push mechanism (not shown). It protrudes forward in a substantially columnar shape, and can be rotated in the protruding state. When the operation buttons 11 to 13 are rotated, the control circuit 70 adjusts the amount of gas supplied to the corresponding burner so that the gas amount corresponds to the amount of rotation operation.

Inside the gas stove 1, three gas amount adjusting devices 30 (see FIG. 3) are provided. The gas amount adjusting device 30 adjusts the amount of gas supplied to the corresponding right stove burner 4, left stove burner 5, and grill burner. The gas amount control device 30 includes a valve mechanism section 36 and a motor 37 . The valve mechanism unit 36 includes various valves such as a needle valve and an electromagnetic valve that adjust the amount of gas flowing through the gas flow path. The motor 37 drives the valves of the valve mechanism 36 to adjust the flow rate of the gas flowing through the gas flow path. Driving of the motor 37 is controlled by a control circuit 70 .

When the operation buttons 11 to 13 are pushed in and projected forward, the control circuit 70 energizes the motor 37 of the gas amount adjusting device 30 . As a result, the valve mechanism 36 is driven and the gas flow path is opened, thereby supplying gas to the corresponding burner. At the same time, the control circuit 70 ignites the corresponding burner by activating the corresponding igniter 60 . Then, the control circuit 70 rotates the motor 37 forward and backward according to the rotation direction and rotation angle of the operation buttons 11 to 13 to adjust the opening degree of the valve in the valve mechanism section 36 . As a result, the heating power of the corresponding burner is adjusted by adjusting the amount of gas flowing through the gas flow path. Further, when the operation buttons 11 to 13 are pushed into the gas stove 1 and accommodated, the control circuit 70 rotates the motor 37 in the reverse direction. As a result, the valves of the valve mechanism 36 are driven in the opposite direction, and the gas flow paths are closed, thereby cutting off the supply of gas to the corresponding burners. In this embodiment, for convenience of explanation, the right stove burner 4, the left stove burner 5, and the grill burner are sometimes referred to as the right stove 4, the left stove 5, and the grill, respectively.

The electrical configuration of the gas stove 1 will be described with reference to FIG. In the following description, the right stove burner 4, left stove burner 5, and grill burner are called right stove 4, left stove 5, and grill, respectively. The gas stove 1 has a control circuit 70 . The control circuit 70 includes a CPU 71, a ROM 72, a RAM 73, a nonvolatile memory 74, and the like. The CPU 71 centrally controls various operations of the gas stove 1 . The ROM 72 stores various programs including, for example, a stove heating power setting program. The stove heating power setting program executes a stove heating power setting process (see FIG. 5), which will be described later. The RAM 73 temporarily stores various information. The nonvolatile memory 74 stores flag information such as a right wall flag, a left wall flag, and a limit flag, burner thermal power information, stove thermal power setting information, and the like, which will be described later. The right wall flag is set to 1 when the right sensor 77A detects the kitchen wall within a predetermined distance on the right side of the gas stove 1, and to 0 when the wall is not detected. The left side wall flag is set to 1 when the left sensor 77B detects the wall of the kitchen within a predetermined distance on the left side of the gas stove 1, and to 0 when the wall is not detected. The restriction flag is set to 0 when the ignition of the corresponding burner is permitted and 1 when the ignition is restricted in response to depression of the operation buttons 11 to 13 .

In the control circuit 70, a power supply circuit 81, a thermistor input circuit 82, a thermocouple input circuit 83, an igniter circuit 84, an operation panel 24, a motor control circuit 85, a sensor input circuit 87, a buzzer circuit 88, a sensor 19, etc. are electrically connected. connected to each other. When the power button 25 is pressed by the user, the power supply circuit 81 steps down the alternating current (eg, 100 V) supplied from the power supply 23 to direct current (eg, 5 V), rectifies it, and supplies power to various circuits. Therefore, the gas stove 1 is turned on. When the user presses the power button 25 again, the power supply circuit 81 cuts off power supply to various circuits. Therefore, the gas stove 1 is turned off.

The thermistor input circuit 82 inputs to the control circuit 70 a detection signal from the thermistor 40 stored in the sensor assembly 20 provided for each burner. The thermocouple input circuit 83 inputs a detection value (a signal corresponding to thermoelectromotive force) from the thermocouple 50 to the control circuit 70 . The igniter circuit 84 drives the igniter 60 of the corresponding burner based on the control signal from the CPU 71 . The operation panel 24 is accommodated in the lower right portion of the front panel of the gas stove 1, and is pulled out to the front side by pushing in the portion. The operation panel 24 accepts user input such as timer setting and heating power control selection according to the cooking menu, and inputs the input signal to the control circuit 70 . As will be described later, the operation panel 24 of the present embodiment can also receive a predetermined operation for executing the stove heating power setting process of FIG. The motor control circuit 85 controls driving of the motors 37 of the three gas amount adjusting devices 30 based on control signals from the CPU 71 .

The sensor input circuit 87 inputs detection signals from the right sensor 77A and the left sensor 77B to the control circuit . A buzzer circuit 88 drives a piezoelectric buzzer 78 based on a control signal from the CPU 71 . The sensor 19 is provided for each of the operation buttons 11 to 13, detects the rotation direction and rotation angle of the operation buttons 11 to 13, and inputs the detection signal to the control circuit . Based on the detection signal from the sensor 19, the CPU 71 rotates the output shaft of the motor 37 and drives the valve mechanism 36 so as to correspond to the rotation direction and rotation angle of the operation buttons 11-13. Thereby, the amount of gas flowing through the gas passage is adjusted, and the heating power of the corresponding burner is adjusted.

A position meter 35 is provided in the gas amount adjusting device 30 . The position meter 35 detects the rotation angle of the output shaft of the motor 37 and inputs the detection signal to the control circuit 70 . The CPU 71 recognizes the rotation angle of the output shaft of the motor 37 based on the detection signal from the position meter 35 . The CPU 71 can specify the corresponding burner thermal power based on the recognized rotation angle of the output shaft of the motor 37 and burner thermal power information, which will be described later. In addition, the gas stove 1 may include a communication unit capable of communicating with an external device wirelessly or by wire. In that case, the gas stove 1 can receive various programs and data from the external device via the communication unit, and can update control details, for example.

With reference to FIG. 4, the heating power adjustable range in the gas amount adjusting device 30 and the heating power adjusting ranges set for the right stove 4 and the left stove 5 will be described. The thermal power adjustable range means the range in which the corresponding burner thermal power can be adjusted in the gas amount adjusting device 30 . The heating power adjustment range means the range of burner heating power that can be adjusted on the right stove 4 and the left stove 5 in the heating power adjustable range. In each of the gas amount adjusting devices 30 of the right stove 4 and the left stove 5, the heating power adjustable range is divided into 6 stages of 1-6. 1 to 6 are thermal power setting positions where specific thermal powers can be set. Among them, the range of 2 to 6 is set to the high heat range, and the range of 1 to 5 is set to the low heat range. The high heating power range and the low heating power range are heating power adjustment ranges set for the right stove 4 and the left stove, respectively.

In the gas amount adjusting device 30, a rotation angle of the motor 37 is assigned to each step of the high heat power range and the low heat power range. Thereby, the CPU 71 can specify the corresponding burner thermal power based on the rotation angle of the output shaft of the motor 37 . In the gas stove 1, information that associates the rotation angle of the output shaft of the motor 37 with the burner power is stored in the nonvolatile memory 74 as burner power information. The maximum output of the gas stove 1 is set in advance, and when one of the right stove 4 and left stove 5 is set to a high heating power range, the other is set to a low heating power range. Which of the high heating power range and the low heating power range is set for the right stove 4 and the left stove 5 is determined in the stove heating power setting process to be described later.

The stove heating power setting process will be described with reference to FIGS. 5 to 7. FIG. When the installer installs the gas stove 1 on the counter top of the kitchen, for example, when the gas stove 1 is activated by the power button 25 and a predetermined operation is performed on the operation panel 24, the CPU 71 reads out the stove heating power setting program from the ROM 72, and performs this processing. to run.

As shown in FIG. 5, the CPU 71 executes initial processing (S1). In the initial processing, the CPU 71 sets the right wall flag to 0 and the left wall flag to 1, for example. That is, in the present embodiment, the default is the state in which the kitchen wall 10 is detected to the left of the gas stove 1 (see FIG. 2). Furthermore, the CPU 71 sets the limit flag to 1 in the initial processing.

Next, the CPU 71 executes wall detection processing (S2). The wall detection process is a process of detecting the wall of the kitchen around the gas stove 1 installed on the countertop of the kitchen. Specific processing of this processing will be described later. Next, the CPU 71 executes thermal power adjustment range setting processing (S3). The heating power adjustment range setting process is a process of setting the heating power adjustment ranges of the right stove 4 and the left stove 5 based on the position of the kitchen wall detected in the wall detection process. Specific processing of this processing will be described later. Thus, the CPU 71 terminates the stove heating power setting process.

The wall detection process will be described with reference to FIG. The CPU 71 acquires a distance signal from the right sensor 77A via the sensor input circuit 87 (S11). The CPU 71 may acquire distance signals from the right sensor 77A, for example, a predetermined number of times (for example, four times). The CPU 71 determines whether or not it is impossible to determine the distance from the predetermined number of acquired distance signals (S12). For example, when the difference between the maximum value and the minimum value of the distances corresponding to the acquired predetermined number of distance signals is equal to or greater than a threshold value, the CPU 71 considers that the dispersion of the distance signals is large and determines that the distance cannot be determined. If the difference between the maximum value and the minimum value is less than the threshold, it is considered that the variation in the distance signal is small and it is determined that the distance can be determined. When determining that the distance cannot be determined (S12: YES), the CPU 71 determines that there is no wall on the right side of the gas stove 1, and sets the right wall flag to 0 (S16).

On the other hand, when determining that the distance can be determined (S12: NO), the CPU 71 calculates the average value of the predetermined number of obtained distances and specifies the distance to the foreign object (wall) (S13). The CPU 71 determines whether or not the identified distance is equal to or less than a predetermined distance (S14). If the specified distance is greater than the predetermined distance (S14: NO), it is determined that there is no wall within the range of the predetermined distance on the right side of the gas stove 1, and the right wall flag is set to 0 (S16). Conversely, if the specified distance is equal to or less than the predetermined distance (S14: YES), the wall is located on the right side of the gas stove 1, so the CPU 71 sets the right wall flag to 1 (S15).

Next, the CPU 71 acquires a distance signal from the left sensor 77B via the sensor input circuit 87, similarly to the right sensor 77A (S18). The CPU 71 may acquire distance signals from the left sensor 77B, for example, a predetermined number of times (for example, four times). The CPU 71 determines whether or not it is impossible to determine the distance from the predetermined number of acquired distance signals (S19). The method for determining whether the distance can be determined is as described above. If it is determined that the distance cannot be determined (S19: YES), the CPU 71 determines that there is no wall on the left side of the gas stove 1, and sets the left wall flag to 0 (S23).

On the other hand, if it is determined that the distance can be determined (S19: NO), the CPU 71 calculates the average value of the predetermined number of obtained distances and specifies the distance to the foreign object (wall) (S20). The CPU 71 determines whether or not the specified distance is equal to or less than a predetermined distance (S21). If the specified distance is greater than the predetermined distance (S21: NO), it is determined that there is no wall on the left side of the gas stove 1, and the left wall flag is set to 0 (S23). Conversely, if the specified distance is equal to or less than the predetermined distance (S21: YES), the wall is located on the left side of the gas stove 1, so the CPU 71 sets the left wall flag to 1 (S22). Thus, the CPU 71 terminates this process and advances the process to S3 in FIG.

The thermal power adjustment range setting process will be described with reference to FIG. This process is a process of setting the heating power adjustment range of each of the right stove 4 and the left stove 5 based on the position of the wall of the installation location of the kitchen detected by the wall detection process. This embodiment will be described with four examples (1) to (4).
(1) When the wall is located on the right side of the gas stove 1 The CPU 71 determines whether or not the right wall flag is 1 (S31). When the right wall flag is 1 (S31: YES), the CPU 71 determines whether or not the left wall flag is 0 (S32). When the left wall flag is 0 (S32: YES), the kitchen wall is located on the right side of the gas stove 1, and the kitchen wall is not located on the left side. Therefore, the CPU 71 identifies the right stove 4 as a stove close to the wall, sets a low heating power range for the right stove 4, and sets a high heating power range for the left stove 5 (S33). As a result, on the right stove 4, the burner power can be set at each heat power setting position in the low heat power range from 1 to 5, and on the left stove 5, the burner heat power can be set at each heat power setting position in the high heat power range from 2 to 6. It becomes possible.

(2) When the wall is positioned on the left side of the gas stove 1 When the right wall flag is 0 (S31: NO), the CPU 71 determines whether the left wall flag is 1 (S35). When the left side wall flag is 1 (S35: YES), the kitchen wall is located on the left side of the gas stove 1, and the kitchen wall is not located on the right side. Therefore, the CPU 71 identifies the left stove 5 as a stove close to the wall, sets a low heating power range for the left stove 5, and sets a high heating power range for the right stove 4 (S36). As a result, on the right stove 4, the burner power can be set at each heat power setting position from 2 to 6, and on the left stove 5, the burner power can be set at each heat power setting position from 1 to 5. It becomes possible. As a result, in situations (1) and (2) above, a low-performance stove can be arranged on the wall side with one type of gas stove 1 without lowering the maximum output of the gas stove 1 .

(3) When a pair of walls are positioned on the left and right sides of the gas stove 1 When both the right wall flag and the left wall flag are 1 (S31: YES, S32: NO), walls are positioned on the left and right sides of the gas stove 1, respectively. do. That is, the gas stove 1 is installed in a state sandwiched between a pair of walls on both left and right sides. Therefore, the CPU 71 sets a low heating power range for both the right stove 4 and the left stove 5 (S34). In this case, although the maximum output capability of the gas stove 1 is reduced, since both the right stove 4 and the left stove 5 are close to the wall, it is necessary to set a low heating power range for both the right stove 4 and the left stove 5. can improve safety.
(4) When there are no walls on both the left and right sides of the gas stove 1 When both the right wall flag and the left wall flag are 0 (S31: NO, S35: NO), there are walls on both the left and right sides of the gas stove 1. It does not exist, for example, an island-type kitchen or the like. In this case, the CPU 71 makes default settings (S37). As a default setting, for example, a high heating power range for the right stove 4 and a low heating power range for the left stove 5 may be set. As a result, the gas stove 1 can flexibly cope with the situation (4).

Information on the heating power adjustment ranges set for the right stove 4 and left stove 5 is stored in the non-volatile memory 74 as stove heating power setting information. Since the CPU 71 has completed the setting of the heating power adjustment ranges of the right stove 4 and the left stove 5, it sets the limit flag to 0 (S38). In this manner, the CPU 71 terminates this processing and terminates the stove heating power setting processing of FIG.

The ignition control process will be described with reference to FIG. The installer tries to ignite the right stove 4 or the left stove 5 in order to confirm that the gas stove 1 operates normally. For example, when the installer presses the operation button 11 to ignite the right stove 4, the CPU 71 reads the ignition control program from the ROM 72 and executes this process. The CPU 71 determines whether or not the limit flag stored in the nonvolatile memory 74 is 0 (S41). If the limit flag is 1 (S41: NO), when the gas stove 1 is installed, the stove heating power setting process has not been executed or has not been executed normally, and the heating power of the right stove 4 and left stove 5 has not been adjusted. Most likely the range is not set. Therefore, the CPU 71 displays an error on the display section of the operation panel 24 without igniting the corresponding right stove 4 (S46). The installer who sees the error display can notice that the stove thermal power setting process is not executed or is not normally executed, so that the stove thermal power setting process can be executed again.

On the other hand, if the limit flag is 0 (S41: YES), the setting of the heating power adjustment ranges of the right stove 4 and the left stove 5 has already been completed. By opening a safety valve (not shown) and a valve of the valve mechanism 36 of the gas amount control device 30 to supply gas and operating the igniter 60 of the right stove 4 corresponding to the pressed operation button 11, the right stove 4 is ignited (S42). The CPU 71 starts combustion control of the right stove 4 (S43). The right stove 4 can adjust the burner heating power in five steps within a set heating power adjustment range by rotating the operation button 11 . The installer should ensure that the low heat range is set for the wall stove and the high heat range is set for the stove on the opposite side of the wall.

The CPU 71 determines whether or not there has been an operation to extinguish the right stove 4 by pressing the operation button 11 again (S44). Until the operation button 11 is pressed again (S44: NO), the CPU 71 returns to S44 and continues combustion control. If the operation button 11 is pressed again (S44: YES), the CPU 71 closes the safety valve (not shown) provided in the gas supply pipe of the right stove 4, the valve of the valve mechanism 36 of the gas amount control device 30, and Extinguish stove 4. The CPU 71 terminates this process.

As explained above, the gas stove 1 of the first embodiment includes the right stove 4 and the left stove 5 on the top plate 3 . The right stove 4 and the left stove 5 have the same specifications. A gas amount adjusting device 30 of the right stove 4 adjusts the heating power of the right stove 4 by adjusting the amount of gas supplied to the right stove 4 . The gas amount adjusting device 30 of the left stove 5 adjusts the heating power of the left stove 5 by adjusting the amount of gas supplied to the left stove 5 . In the gas stove 1, the total maximum output of gas from the right stove 4 and the left stove 5 is predetermined. Inside the housing 2 of the gas stove 1, a right sensor 77A and a left sensor 77B are provided. The right sensor 77A detects an obstacle (wall) on the right side of the gas stove 1 within a predetermined distance. The left sensor 77B detects an obstacle (wall) within a predetermined distance on the left side of the gas stove 1 . Based on the signals from the right sensor 77A and the left sensor 77B, the CPU 71 of the gas stove 1 identifies the one of the right stove 4 and the left stove 5 that is closer to the wall side of the kitchen.

The CPU 71 of the gas stove 1 sets a low heat power range for the stove closer to the wall side of the kitchen in the heat power adjustable range by the gas amount control device 30 of each of the right stove 4 and the left stove 5. Set a high heat range for the stove on the opposite side. Here, the total maximum output of each of the high heating power range and the low heating power range is set to the total maximum gas output of the right stove 4 and the left stove 5 . As a result, the capacity of the wall side stove can be set low without lowering the capacity of the gas stove 1, so that the wall side which is easily heated can be considered. In addition, even if it is not known whether the wall is on the left or right side of the gas stove 1 according to the place where the gas stove 1 is installed, either the right stove 4 or the left stove 5 can be detected according to the detection results of the right sensor 77A and the left sensor 77B. Since a low heating power range can be set for one of them, the capacity of the burner on the wall side can be lowered with one type of gas stove 1. - 特許庁As a result, since there is no need to increase the types of gas stoves 1, the management of the gas stoves 1 to be shipped is facilitated, and since there is no need to select an installation place, the gas stoves 1 with good usability can be provided.

Further, in the above-described embodiment, the thermal power adjustable range by the gas amount adjusting device 30 is divided into 6 stages of 1-6. As a result, it is possible to easily set the range of 1 to 5, which includes the lower level of thermal power, to the low thermal power range, and the range of 2 to 6, which includes the higher level of thermal power, to the high thermal power range.

Further, in the above-described embodiment, the operation button 11 for accepting the operation of the heating power of the right stove 4 and the operation button 13 for accepting the operation of the heating power of the left stove 5 are provided. Each of the gas amount adjusting devices 30 of the right stove 4 and the left stove 5 has a motor 37 driven according to the operation of the operation buttons 11 and 13 . The gas amount adjusting device 30 adjusts the amount of gas supplied to the corresponding right stove 4 or left stove 5 by driving the motor 37 . Therefore, the gas amount adjusting device 30 can be accurately interlocked with the operation of each of the operation buttons 11 and 13 .

In the above description, the right stove 4 is an example of the "first burner" of the present invention, and the left stove 5 is an example of the "second burner" of the present invention. The right sensor 77A is an example of the "first sensor" of the present invention, and the left sensor 77B is an example of the "second sensor" of the present invention. The gas amount adjusting device 30 of the right stove 4 is an example of the "first heating power adjusting section" of the present invention, and the gas amount adjusting device 30 of the left cooking stove 5 is an example of the "second heating power adjusting section" of the present invention. Among the adjustable thermal power ranges, the high thermal power range is an example of the "first range" of the present invention, and the low thermal power range is an example of the "second range" of the present invention. The operating button 11 is an example of the "first thermal power operating section" of the present invention, and the operating button 13 is an example of the "second thermal power operating section" of the present invention. The motor 37 of the gas amount adjusting device 30 is an example of the "motor" of the present invention. The CPU 71 that executes the stove heating power setting process shown in FIG. 5 is an example of the "setting section" of the present invention. The CPU 71 that executes the wall detection process shown in FIG. 6 is an example of the "specification unit" of the present invention.

-Second Embodiment-
A second embodiment will be described with reference to FIGS. As described above, the gas stove 1 of the first embodiment uses the right sensor 77A and the left sensor 77B to detect the wall at the installation location of the gas stove 1, and the low heating power range for the stove on the wall side. Set a high heat range for the stove on the opposite side. On the other hand, the gas stove 100 of the second embodiment has a default state in which a high heating power range is set for the right stove 4 and a low heating power range is set for the left stove 5, and the high heating power range and low heating power range are manually set. It differs from the first embodiment in that it has a left high heat power switch 95 that can be switched with.

As shown in FIG. 9, the gas stove 100 includes a switch input circuit 90, a sensor 91, a left high heat switch 95, and a confirmation button instead of the right sensor 77A, left sensor 77B, and sensor input circuit 87 of the first embodiment. 96. Since the left high heat switch 95 and the confirmation button 96 are mainly used by installers, they should be provided in places where the gas stove 1 in the installed state cannot be visually recognized by the user. The switch input circuit 90 inputs the ON signal of the left high power switch 95 to the control circuit 70 . The sensor 91 detects pressing of the confirmation button 96 and inputs a detection signal to the control circuit 70 . For example, a DIP switch or the like can be applied to the left high heat switch 95 .

The stove thermal power setting process will be described with reference to FIG. When the installer installs the gas stove 1 on the counter top of the kitchen and presses the power button 25, the CPU 71 reads out the stove heating power setting program from the ROM 72 and executes this processing. Note that the non-volatile memory 74 stores in advance the stove heating power setting information in the initial state. The stove heating power setting information in the initial state is information that sets the right stove 4 to a high heating power range and the left stove 5 to a low heating power range. A nonvolatile memory 74 stores a limit flag similar to that of the first embodiment, and is set to 1 as an initial state.

The installer confirms whether the wall of the kitchen is located on the right side or the left side of the gas stove 1 when the gas stove 1 is installed on the countertop. When the wall is located within a predetermined distance on the left side of the gas stove 1, the left side of the stove 5 should be in the low heating range, and the right side of the right stove 4 should be in the high heating range. Do not turn on. On the other hand, if the wall is located within a predetermined distance on the right side of the gas stove 1, the right stove 4 should be set to a low heat range and the left stove 5 to a high heat range. 95 should be turned on.

The CPU 71 determines whether or not the left high heat switch 95 is on (S52). When the left high heat power switch 95 is off (S52: NO), the stove heat power setting information may remain in the initial state, so the CPU 71 determines whether or not the confirmation button 96 has been pressed (S54). On the other hand, when the left high heat power switch 95 is turned on (S52: YES), the CPU 71 sets the low heat power range for the right stove 4 and the high heat power range for the left stove 5 (S53). The stove heating power setting information stored in 74 is rewritten.

When the installer has completed the setting of the heating power adjustment ranges of the right stove 4 and the left stove 5, the CPU 71 presses the confirm button 96 to confirm the set heating power adjustment ranges. Until the confirmation button 96 is pressed (S54: NO), the CPU 71 returns to S52 and waits. If the confirmation button 96 is not pressed, the limit flag remains 1, so in the ignition control process shown in FIG. not ignite. If the confirmation button 96 is pressed (S54: YES), the CPU 71 sets the limit flag stored in the nonvolatile memory 74 to 0 (S55). As a result, in the ignition control process shown in FIG. 8, if the operation button 11 is depressed to try to ignite the right stove 4, the right stove 4 is normally ignited. Therefore, since the right stove 4 and the left stove 5 can be used within the heating power adjustment range suitable for the installation location of the gas stove 1, the gas stove 1 with high safety can be provided, and the same effect as the first embodiment can be obtained. . The CPU 71 terminates this process. In addition, CPU71 of the gas stove 100 of 2nd embodiment performs the ignition control process shown in FIG. 8 similarly to 1st embodiment.

As described above, the gas stove 100 of the second embodiment defaults to a state in which a high heating power range is set for the right stove 4 and a low heating power range is set for the left stove 5, and the high heating power range and the low heating power range are set. It has a left high heat switch 95 that can be switched manually. As a result, in the gas stove 100 as well as in the first embodiment, the heating power adjustment range of the burner near the wall can be set to a low heating power range according to the installation location. The gas stove 100 also includes a confirmation button 96 for confirming the setting when the setting of the respective heating power adjustment ranges of the right stove 4 and the left stove 5 is completed. As a result, when the installer installs the gas stove 100, if he/she forgets to set the heating power adjustment range, the gas stove 100 limits the ignition of the right stove 4 and the left stove 5, respectively, thereby ensuring safety. can provide the gas stove 100 with high In addition, by making such a restriction, the installation company knows that the setting of the heating power adjustment range is not completed when checking the ignition of the right stove 4 and the left cooking stove 5, so the setting of the heating power adjustment range is not completed. can be completed.

The present invention is not limited to the above first and second embodiments, and various modifications are possible. The gas stove 1, 100 of the above embodiment is a built-in stove, but it may be a table stove. You can omit the grill. A right stove 4 and a left stove 5 are provided on the top plate 3, but a back stove may be provided between them.

Although the right sensor 77A and the left sensor 77B of the first embodiment are optical sensors, they may be other sensors. For example, a contact-type sensor may be used to detect the wall where the stove is installed.

The gas stove 1 of the first embodiment includes the right sensor 77A and the left sensor 77B on both the left and right sides of the housing 2, but either one may be omitted. For example, only the right sensor 77A may be attached to the right side of the housing 2, and a high heating power range for the right stove 4 and a low heating power range for the left stove 5 may be set as default. If the right sensor 77A does not detect a wall within a predetermined distance on the right side of the housing 2, the default thermal power adjustment range may be left as it is. When the right sensor 77A detects a wall within a predetermined distance on the right side of the housing 2, the CPU 71 may set the right stove 4 to a low heating power range and the left stove 5 to a high heating power range.

In the ignition control process shown in FIG. 8, if the operation button 11 is pressed and the limit flag is 1 (S41: NO), the ignition of the right stove 4 is limited. can be Also, the heating power adjustment range of both the right stove 4 and the left stove 5 may be forcibly set to the low heating power range to limit the burner heating power.

In the gas stove 100 of the second embodiment, the default setting is a high heating power range for the right stove 4 and a low heating power range for the left stove 5, and the left high heating power switch 95 can switch the heating power adjustment range. However, for example, a state in which a low heating power range is set for the right stove 4 and a high heating power range is set for the left stove 5 may be set as default, and the heating power adjustment range may be switched by the right high heating power switch.

In the above description, the left high heat switch 95 is an example of the "switch" of the present invention. The CPU 71 that executes the stove heating power setting process shown in FIG. 10 is an example of the "setting section" of the present invention. The CPU 71 that executes the processing of S52 in FIG. 10 is an example of the "identifying section" of the present invention.

1,100 gas stove 4 right stove 5 left stove 11, 13 operation button 19 sensor 30 gas amount control device 37 motor 71 CPU
77A Right sensor 77B Left sensor 95 Left high heat switch 96 Confirmation button

Claims (7)

A first burner installed on the right side of the upper surface of the instrument;
A second burner installed on the left side of the upper surface of the appliance and having the same specifications as the first burner;
a first heating power adjustment unit that adjusts the heating power of the first burner by adjusting the amount of gas supplied to the first burner;
a second heating power adjustment unit that adjusts the heating power of the second burner by adjusting the amount of gas supplied to the second burner;
In a gas stove in which the total maximum output of gas from the first burner and the second burner is predetermined,
A first range set on the high heat power side of the adjustable range of heat power adjustable by the first heat power adjustment unit and the second heat power adjustment unit, and a range width same as the first range and on the low heat power side , wherein the first range can be set for one of the first thermal power adjustment unit and the second thermal power adjustment unit, and the second range can be set for the other Equipped with a setting section,
A gas stove, wherein a total value of maximum outputs of the first range and the second range is set to the total maximum output. The adjustable range is distributed in a predetermined number of steps,
2. The gas stove according to claim 1, wherein said first range is a range including said high heat side stage among said predetermined number of stages. a first thermal power operation unit that receives an operation of the thermal power of the first burner;
A second thermal power operation unit that receives operation of the thermal power of the second burner,
Each of the first thermal power adjustment section and the second thermal power adjustment section
A motor driven according to the operation of each of the first thermal power operation unit and the second thermal power operation unit,
3. The gas stove according to claim 1, wherein the amount of gas supplied to the corresponding first burner or second burner is adjusted by driving the motor. 4. The gas stove according to any one of claims 1 to 3, further comprising a switch capable of manually switching between the first range and the second range set by the setting unit. an input unit for inputting that the setting by the setting unit is completed;
a determination unit that determines whether or not there is an input from the input unit;
and a limiting unit for limiting the ignition of each of the first burner and the second burner or limiting the fire power to low power until the judging unit judges that the input has been made. Item 5. The gas stove according to any one of Items 1 to 4. Equipped with a sensor that detects an obstacle within a predetermined distance,
The setting unit
In a state where the gas stove is installed, when the sensor detects the wall of the installation location of the gas stove within the range of the predetermined distance from the gas stove, the wall side of the first burner and the second burner is detected. provided with an identification unit that identifies a burner close to
The second range is set for the first thermal power adjustment unit or the second thermal power adjustment unit corresponding to the burner specified by the specifying unit, and the second range corresponding to the burner not specified by the specifying unit is set. 5. The gas stove according to any one of claims 1 to 4, wherein the first range is set for the first heating power adjusting section or the second heating power adjusting section. The sensor is
a first sensor for detecting an obstacle on the right side of the instrument;
a second sensor that detects an obstacle on the left side of the instrument;
The identification unit
when the first sensor detects the wall, identifying the first burner as the burner close to the wall;
7. The gas stove according to claim 6, wherein when said second sensor detects said wall, said second burner is specified as said burner close to said wall side.

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