JP6401514B2 - Gas stove - Google Patents

Description

  The present invention relates to a gas stove, and more particularly to a gas stove configured to notify a user of a thermal power change operation and change the thermal power safely.

  The gas stove is usually configured to adjust the heating power by controlling the amount of fuel gas supplied.

  As such a gas stove, Patent Document 1 includes a temperature sensor that detects the temperature of the lower surface of the cooking container, and performs automatic cooking by adjusting the thermal power by the control unit so as to keep the temperature of the lower surface of the cooking container constant. When changing the burner's thermal power to the large thermal power side due to a decrease in the temperature detected by the temperature detection means during the automatic cooking, the automatic temperature control thermal power before changing the burner's thermal power to the large thermal power side A gas stove configured to perform increase notification has been proposed.

  According to the gas stove of Patent Document 1, when the thermal power of the burner is changed to the large thermal power side as the temperature detected by the temperature detecting means during the execution of the automatic temperature control, the thermal power of the burner is reduced from the small thermal power. The automatic temperature control heating power increase notification before changing to a large heating power informs the user that the heating power will be changed to a large heating power, so that the user will not feel confused or surprised, automatic cooking It is possible to improve the comfort while keeping the convenience by.

  Note that the gas stove disclosed in Patent Document 1 is configured so that the user can reliably recognize that the thermal power is changed to the large thermal power, for example, by performing a voice notification such as “change to the large thermal power”. Has been.

  However, in the case of Patent Literature 1, when changing the heating power of the burner to the large heating power side as the temperature detected by the temperature detecting means decreases during the automatic cooking, a voice such as “change to a large heating power” is used. When the notification is repeatedly performed, the user may feel annoyed with the repeated sound notification.

  In addition, after performing a voice notification such as “I will change to large thermal power”, the thermal power of the burner is changed to the large thermal power side, so as the temperature detected by the temperature detection means decreases, From the time when it is necessary to change the thermal power of the burner to the large thermal power side, after the time required for voice notification such as “Change to the large thermal power” has elapsed, the thermal power of the burner is changed to the large thermal power side. Become. Therefore, due to a delay in timing to change the thermal power to the large thermal power side, the control characteristics related to automatic cooking are deteriorated, and undershoot may occur. In addition, it is necessary to lengthen the heating time by the burner in order to recover the undershoot, or the heat transfer characteristics are delayed due to the heat capacity of the cooking container or the contents, and thus overshoot occurs. There is also a fear.

  Therefore, in order to eliminate the inconvenience due to the delay in timing to change the above-mentioned thermal power to the large thermal power side, instead of voice notification, for example, notification by electronic sound such as “beep beep” is performed to shorten the time required for notification. It is possible to do. However, when the user has forgotten that the burner's heating power is changed to the large heating power after the notification by the electronic sound, there is a problem that the effect of the automatic temperature control heating power increase notification is not exhibited.

  On the other hand, in order to eliminate the inconvenience due to the timing delay of changing the above-mentioned thermal power to the large thermal power side, the temperature decreasing gradient is calculated from the decrease in the measured temperature by the temperature detecting means, and the thermal power increasing temperature is calculated based on this temperature decreasing gradient. A cooking apparatus has been proposed in which a predicted time until reaching the position is obtained and the heating power change is notified by voice notification means based on the predicted time (for example, Patent Document 2).

  However, the decrease in the measured temperature by the temperature detecting means is easily affected by the user's behavior related to cooking. For example, when cooking tempura by automatic cooking, ingredients are added to the cooking container. Since the temperature measured by the temperature detection means drops sharply when it is put in, the estimated time obtained from the temperature descending gradient before the ingredients are put into the cooking container and the temperature after the ingredients are put into the cooking container This is different from the predicted time obtained from the descending slope. Therefore, it is difficult to obtain the predicted time until the thermal power increase temperature is reached based on the temperature descending gradient by the temperature detecting means. Based on the predicted time with low reliability, the thermal power change is notified to the notification means by voice. Even if the notification is made, there is a problem that the reliability is low.

JP2013-024475A JP 2013-164194 A

  The present invention solves the above-mentioned problem, and even when a user inadvertently approaches a burner that is about to automatically change the heating power from a small heating power to a large heating power by the combustion control means. , Without making the user feel embarrassed or surprised, it is possible to reliably tell that the thermal power is changed from small thermal power to large thermal power, and does not cause deterioration of the control characteristics of automatic cooking The purpose is to provide a gas stove.

In order to achieve the above object, the gas stove of the present invention (Claim 1) comprises:
A burner for heating an object to be heated located at a heating position;
Temperature detecting means for detecting the temperature of the object to be heated;
Combustion control means for controlling the operation of the burner based on detection information of the temperature detection means,
The combustion control means executes automatic temperature adjustment control for controlling the heating power of the burner so as to maintain the temperature detected by the temperature detection means at a set temperature during combustion of the burner, and the automatic temperature adjustment control When the temperature detecting means detects a decrease in the temperature of the object to be heated during the execution of the above, the heating power of the burner is larger than the small heating power that is the heating power when the decrease in the temperature of the object to be heated is detected It is configured to increase to an intermediate thermal power that is a thermal power, and then change to a set large thermal power that is a thermal power larger than the intermediate thermal power , and
When the temperature detection means detects a decrease in the temperature of the object to be heated during the execution of the automatic temperature control by the combustion control means, the combustion control means increases the burner thermal power to the intermediate thermal power, maintaining the intermediate thermal, in order to change the heating power of the burner in the setting large thermal power, after performing thermal increase notification, that is configured to change the heating power of the burner in the setting large thermal It is a feature.

  In addition, the intermediate thermal power in the present invention refers to a thermal power that does not cause a high risk of being burned even if the user inadvertently approaches the gas stove.

  Moreover, in the gas stove of this invention, it is preferable to perform the said thermal power increase alert | report by an electronic sound.

  Further, after the start of the execution of the automatic temperature control, the electronic sound explanation by voice is used to explain that the heating power of the burner is changed to the set large heating power after the heating power increase notification by the electronic sound is performed. It is preferable that the system is configured to perform the notification for use.

  Further, it is preferable that the combustion control means repeats the electronic sound explanation notification at predetermined time intervals during execution of the automatic temperature control.

In the gas stove of the present invention (Claim 1), as described above, when the temperature detecting means detects a decrease in the temperature of the object to be heated during the execution of the automatic temperature control, the combustion control means sets the burner's heating power as described above. Immediately increase from small thermal power to intermediate thermal power that is larger than small thermal power and maintain it to intermediate thermal power, and after reporting the increase in thermal power, the burner's thermal power is changed to the set large thermal power, Even if the user inadvertently approaches the gas stove where the thermal control from the small thermal power to the large thermal power is automatically performed by the combustion control means, the thermal power is switched to the large thermal power. It is possible to accurately communicate to the user, and it is possible to ensure safety without causing confusion or surprise to the user.

  In addition, when the temperature detecting means detects a decrease in the temperature of the object to be heated during execution of the automatic temperature control, the burner's heating power is maintained at a predetermined intermediate heating power (that is, the heating power is immediately increased to a dangerous intermediate heating power). Therefore, it is possible to suppress a decrease in the control characteristics of automatic cooking as compared with the case where only the heating power increase notification is performed without particularly changing the heating power of the burner.

  Further, when the thermal power increase notification is performed by electronic sound as in the gas stove of claim 2, the time required for the thermal power increase notification by the electronic sound is short, so a short time after the thermal power increase notification is started. Thus, it becomes possible to change to the set large heating power (large heating power side), and it becomes possible to suppress the deterioration of the control characteristics of the automatic cooking.

  Further, as in the gas stove according to claim 3 of the present application, when the thermal power increase notification is made by electronic sound after the execution of the automatic temperature control, the burner thermal power is changed to the set large thermal power (large thermal power side). In order to explain the fact that the electronic sound explanation is given by voice, it is possible to prevent the user from forgetting that the burner's thermal power is changed to the set thermal power after the thermal power increase notification by electronic sound. Thus, highly reliable notification can be performed.

  Further, as in the gas stove according to claim 4 of the present application, when the combustion control means repeats the electronic sound explanation notification at a predetermined time interval during execution of the automatic temperature control, the heating power increases due to the electronic sound. It is possible to more reliably prevent the user from forgetting that the heating power of the burner is changed to the set large heating power (large heating power side) after the notification, and the present invention can be more effectively realized.

It is a top view which shows the structure of the gas stove concerning one Embodiment of this invention. It is a side view of the burner periphery which comprises the gas stove concerning one Embodiment of this invention. It is explanatory drawing of the fuel supply path in the gas stove concerning one Embodiment of this invention. It is a side view of the state before changing a thermal power into setting large thermal power around the burner which constitutes a gas stove concerning one embodiment of the present invention. It is a side view of the state which changed the thermal power to the setting large thermal power around the burner which comprises the gas stove concerning one Embodiment of this invention.

Hereinafter, an embodiment of the present invention will be shown and features thereof will be described in detail.
[Embodiment 1]
FIG. 1 is a plan view showing a configuration of a gas stove (gas table stove) according to one embodiment (first embodiment) of the present invention, FIG. 2 is a side view of the periphery of a burner constituting the gas stove according to the first embodiment, and FIG. These are explanatory drawings of a fuel supply path.

  As shown in FIGS. 1 and 2, in the gas stove (gas table stove) A according to the embodiment of the present invention, the top surface of the gas stove main body 1 is covered with the top plate 2. The gas stove A includes a two-burner (gas burner) having a cylindrical outer shape (outer diameter of 66 mm in this embodiment), that is, a left burner (a stove burner) 31 and a right burner (a stove burner) 32. Flame hole portions 33 formed on the outer periphery of each burner are projected above the top plate 2 through burner openings (not shown) formed in the plate 2.

  As shown in FIG. 1, the left point fire extinguishing for the user to manually perform the point fire extinguishing operation of the left burner 31 is provided on the front surface of the gas stove A, which is located in front of the left burner 31 and the right burner 32. The operation part 41 and the right point fire extinguishing operation part 42 for the user to manually perform the point fire extinguishing operation of the right burner 32 are provided.

  Further, in the gas stove A, based on the operations of the left point fire extinguishing operation unit 41 and the right point fire extinguishing operation unit 42, as shown in FIG. 3, the gas valve 9 provided in the gas supply path 8 is opened and closed and an igniter (not shown) is generated. The left burner 31 and the right burner 32 are controlled to be extinguished by stopping, and the opening of the flow control valve 10 (not shown) driven by a stepping motor (not shown) provided in the branch path 8a from the gas supply path 8 is adjusted. And the control part (combustion control means) 11 which controls the thermal power of the left burner 31 and the right burner 32 by adjusting the gas amount supplied to the right burner 32 is provided.

  The gas stove A is provided with a gas grill part (not shown). On the front side of the gas stove A, a grill handle 44 for opening and closing a door (not shown) provided on the front face of the gas grill part and a fire extinguishing of the gas grill part. A grill point fire extinguishing operation unit 43 for performing the operation is provided, and exhaust due to cooking in the gas grill unit is configured to be discharged from a grill exhaust port 45 provided behind the top plate 2.

  Around the flame hole 33 of each of the left burner 31 and the right burner 32 on the top plate 2, the five virtues 50 for placing the cooking containers 60 heated by the stove burner (the left burner 31 and the right burner 32) are arranged. It is. In the virtues 50, a plurality of virtues claws 51 for placing the cooking container 60 are arranged radially around the flame hole portion 33, and the lower ends of the respective virtues claws 51 are joined by an annular virtuosity ring 52. , Is placed on the top plate 2.

  Further, the left burner 31 and the right burner 32 are provided with cooking container temperature detection means (temperature detection means) 72 that detects the temperature of the cooking container (object to be heated) 60 in contact with the bottom surface of the cooking container 60.

  The gas stove A includes two burners, a left burner 31 and a right burner 32. Since both the left burner 31 and the right burner 32 have the same form as the embodiment of the present invention, The embodiment of the left burner 31 will be described in detail, and the detailed description of the right burner 32 will be omitted.

  The left burner 31 provided in the gas stove A will be described in detail. As shown in FIG. 3, the left burner 31, the manually operated left point fire extinguishing operation unit 41, and the left point fire extinguishing operation by the user. A control unit (combustion control means) 11 is provided that performs point extinguishing and heating power control of the left burner 31 based on a command output from the left point extinguishing operation unit 41 by operation of the unit 41.

<Characteristic configuration of gas stove of the present invention>
The above-described control unit (combustion control means) 11 is configured to control the operation of the left burner 31 based on the detection information of the temperature detection means 72.

The control unit 11 controls the operation of the left burner 31 based on the detection information of the temperature detection means 72.
The control unit 11 maintains the temperature detected by the temperature detection means 72 during combustion of the left burner 31 at a set temperature (for example, 180 ° C.) set by a temperature setting unit (not shown). Executes automatic temperature control to control the heating power.

  And the control part 11 changes the thermal power of the left burner 31 with the fall (for example, it falls to 175 degreeC) of the to-be-heated material (cooking container) which the temperature detection means 72 detected during execution of automatic temperature control control. When changing to a set large thermal power larger than a predetermined intermediate thermal power on the large thermal power side (in this embodiment, for example, 1.72 kW), the thermal power of the left burner 31 is changed to a predetermined intermediate thermal power (in this embodiment, for example, 1.72 kW). And the heating power of the left burner 31 is changed to the set large heating power after the heating power increase notification is performed.

  By adopting the above-described configuration, even when the user inadvertently approaches the stove A that is about to automatically switch the thermal power from the small thermal power to the large thermal power by the control unit 11, the control unit 11 , Because it is possible to accurately tell the user that the thermal power will be changed from small thermal power to large thermal power, it is possible to ensure safety while avoiding confusion and surprise to the user become.

  In addition, the thermal power of the left burner 31 is maintained at a predetermined intermediate thermal power (in this embodiment, for example, 1.72 kW) as the temperature detected by the temperature detection means 72 during the execution of the automatic temperature adjustment control. Compared with the case where only the heating power increase notification is performed without changing the heating power of 31 to the large heating power side, the control characteristics of automatic cooking can be kept high.

Further, in this embodiment, the thermal power increase notification is performed by an electronic sound “beep”.
This is because the time required for reporting the increase in thermal power by electronic sound is shorter than, for example, a method using voice, so that the thermal power of the left burner 31 is a predetermined intermediate thermal power (in this embodiment, for example, 1.72 kW). This is because it is possible to keep the control characteristics of the automatic cooking high by shortening the time to be maintained at the time.

  In addition, after an electronic sound is issued after the start of the execution of the automatic temperature control, an electronic sound explanation notification that the thermal power of the left burner 31 is changed to the set large thermal power (large thermal power side), for example, A voice notification such as “The burner flame increases after a beeping electronic sound” is given.

  Moreover, in this embodiment, the control part 11 is comprised so that the notification for electronic sound description may be repeated at predetermined time intervals (for example, 3 minute intervals) during execution of automatic temperature control.

  In this way, after starting the execution of the automatic temperature control, the electronic sound by voice saying that “when the increase in thermal power is notified by electronic sound, the thermal power of the burner is changed to the set large thermal power (large thermal power side)” Since the notification for explanation is performed, the user forgets that the thermal power of the left burner 31 is changed to the set large thermal power (large thermal power side) after the thermal power increase notification by the electronic sound “beep”. Even when the user inadvertently approaches the gas stove A where the control unit 11 automatically switches the heating power from the small heating power to the large heating power, the control unit 11 Setting large thermal power (large thermal power side) It is possible to accurately tell the user that the thermal power is switched to the large thermal power.

  In this embodiment, as described above, the control unit 11 is configured to repeat the electronic sound explanation notification at a predetermined time interval (for example, every 3 minutes) during execution of the automatic temperature control. Therefore, it is more reliably suppressed that the user forgets that the thermal power of the left burner 31 is changed to the set large thermal power (large thermal power side) after the thermal power increase notification by electronic sound.

  4 and 5 are diagrams for explaining the effect of the present invention. Since the gas stove A of this embodiment is configured as described above, for example, as shown in FIG. 4, the left burner 31 at a stage before the heating power is changed to the set large heating power (large heating power side), as shown in FIG. 4. From the state in which the tip of the flame 81 formed on the bottom of the cooking vessel 60 does not protrude from the outer periphery of the cooking vessel 60, the heating power is changed to the set large heating power as shown in FIG. In the case of a state that protrudes from the outer periphery of the bottom surface (in FIGS. 4 and 5, there is a relatively small cooking container 60 in which the tip of the flame 81 easily protrudes from the outer periphery of the bottom surface of the cooking container 60 when the heating power reaches the set large heating power. However, the burner's thermal power is maintained at a predetermined intermediate thermal power that is not dangerous, and the thermal power is notified in that state, and the user can change the thermal power to the set large thermal power. Sure to be done After making it known, the setting of the thermal power is changed to the large thermal power, so that it is possible to prevent the user from inadvertently getting too close to the flame 81 protruding from the outer periphery of the bottom surface of the cooking container 60, and high safety. Sex can be secured.

<Modification>
Although the case where the present invention is applied to the gas table stove A has been described in the above embodiment, the present invention is also applicable to a built-in stove. Further, the number of gas burners provided in the gas stove A is not limited to two, and can be applied to one gas stove and three or more gas stoves.

  In the above embodiment, the predetermined time interval for repeating the electronic sound explanation notification is 3 minutes, but the predetermined time interval may be a time other than 3 minutes.

  Further, in the above embodiment, the thermal power increase notification is configured to be performed by an electronic sound “beep”, but the thermal power increase notification is configured to be performed by a voice such as “the burner flame increases”. It is also possible to do.

  In the above embodiment, the predetermined intermediate thermal power is 1.72 kW, but the predetermined intermediate thermal power may be a thermal power other than 1.72 kW.

  In addition, the predetermined intermediate thermal power may be a constant thermal power that does not change with the passage of time as in the above embodiment, but the predetermined intermediate thermal power may be configured to gradually increase with the passage of time. .

  The present invention is not limited to the above embodiment in other points, and various modifications can be made within the scope of the present invention.

A gas stove (gas table stove)
DESCRIPTION OF SYMBOLS 1 Gas stove body 2 Top plate 8 Gas supply path 9 Gas valve 10 Flow control valve 11 Control part (combustion control means)
31 Left burner
32 Right burner
33 Flame hole part 41 Left point fire extinguishing operation part 42 Right point fire extinguishing operation part 43 Grill point fire extinguishing operation part 44 Grill handle 45 Grill exhaust port 50 Gotoku 51 Gotoku claws 52 Gotoku ring 60 Cooking container 72 Cooking container temperature detection means (temperature detection means) )
81 flame

Claims (4)

A burner for heating an object to be heated located at a heating position;
Temperature detecting means for detecting the temperature of the object to be heated;
Combustion control means for controlling the operation of the burner based on detection information of the temperature detection means,
The combustion control means executes automatic temperature adjustment control for controlling the heating power of the burner so as to maintain the temperature detected by the temperature detection means at a set temperature during combustion of the burner, and the automatic temperature adjustment control When the temperature detecting means detects a decrease in the temperature of the object to be heated during the execution of the above, the heating power of the burner is larger than the small heating power that is the heating power when the decrease in the temperature of the object to be heated is detected It is configured to increase to an intermediate thermal power that is a thermal power, and then change to a set large thermal power that is a thermal power larger than the intermediate thermal power , and
When the temperature detection means detects a decrease in the temperature of the object to be heated during the execution of the automatic temperature control by the combustion control means, the combustion control means increases the burner thermal power to the intermediate thermal power, maintaining the intermediate thermal, in order to change the heating power of the burner in the setting large thermal power, after performing thermal increase notification, that is configured to change the heating power of the burner in the setting large thermal Characteristic gas stove.   The gas stove according to claim 1, wherein the heating power increase notification is performed by an electronic sound.   After the start of the execution of the automatic temperature control, when the heating power increase notification by the electronic sound is performed, the heating power of the burner is changed to the set large heating power after that, and the notification of the electronic sound explanation by voice is performed. The gas stove according to claim 2, wherein the gas stove is configured to perform.   The gas stove according to claim 3, wherein the combustion control means repeats the electronic sound explanation notification at predetermined time intervals during execution of the automatic temperature control.

Images