JP4895192B2 - Cooker - Google Patents

Description

  The present invention relates to a cooking device that cooks an object to be cooked by burning a burner.

In a heating cooker that cooks an object to be cooked by combustion of a burner, such as a gas stove or a gas grill, the gas supply amount is set to a predetermined range so that the burner burns at a predetermined calorific value or less. The gas supply amount is adjusted in the inside to allow cooking with a desired heating power.
However, for example, when you want to color the surface with grilled fish, or when you want to cook for a short period of time, such as fried rice or stir-fried vegetables, depending on the cooking content, a strong heat exceeding the predetermined calorific value is required temporarily There is. Therefore, in order to improve the usability in such a case, the applicant of the present application executes a boost means for increasing the gas supply amount so that the burner temporarily burns over a predetermined calorific value, and execution of the boost means. Is provided with a boost operation means (boost switch) that can be arbitrarily designated by the user, and a strong heating power is obtained when the boost switch is pressed (see Patent Document 1).

JP 2006-162203 A

  However, in this invention, there is no limit to the number of boost means, and temporary high-power cooking is possible many times by pressing the boost switch, so the food to be cooked is overheated and overburned or burnt. There is a risk of it happening. Moreover, since a container becomes high temperature, it may give a user discomfort.

  Therefore, an object of the present invention is to provide a cooking device capable of maintaining cooking performance by preventing overheating of an object to be cooked or a container while ensuring usability by a boost means.

In order to achieve the above object, according to the first aspect of the present invention, the control means stores the number of executions of the boost means from the ignition of the burner to the extinguishing, and the stored number of executions is a predetermined value set in advance. When the number is reached, until the burner extinguishes, the execution of the boost means is prohibited regardless of the execution instruction by the boost operation means.
According to the second aspect of the present invention, in addition to the object of the first aspect, in order to enable execution of appropriate boost means, the control means is preset with the boost means instructed to be executed by the boost operation means. It is configured to execute only for a predetermined time.
According to the third aspect of the present invention, in addition to the object of the second aspect, in order to execute the second and subsequent boosting means in a more appropriate time, the control means performs the second and subsequent boosting means. The predetermined time is set to be the same as or different from the predetermined time when the first boost means is executed.
According to a fourth aspect of the present invention, in addition to the object of any one of the first to third aspects, when the burner is extinguished, the control means is configured to reset the stored number of executions of the boost means. It is.

According to the invention of claim 1, while using a boost means, a temporary strong heating power can be obtained and heating cooking such as fried rice and stir-fried vegetables can be effectively performed. It can prevent overcooking and scorching of the food. In addition, overheating of the container can be prevented and the feeling of use is not impaired. Therefore, it is possible to maintain good cooking performance by preventing overheating of the object to be cooked and the container while securing the usability by the boost means.
According to the second aspect of the present invention, in addition to the effect of the first aspect, it is possible to execute an appropriate boost means in a time sufficient for actual high-power cooking such as fried rice and stir-fried vegetables.
According to the invention described in claim 3, in addition to the effect of claim 2, the second and subsequent boosting means can be executed in a more appropriate time.
According to the invention described in claim 4, in addition to the effect of any one of claims 1 to 3, the number of boost means is limited only during one continuous combustion of the burner. When the fire is extinguished once and the next cooking is performed, the boost means can be executed again up to a predetermined number of times, and the usability is not impaired.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 shows a schematic configuration of a stove unit 1 in a gas stove that is an example of a heating cooker. A gas pipe 3 to a burner 2 is provided with a point fire extinguisher (not shown) provided in front of the gas stove from the upstream side. An electromagnetic safety valve 4 that is opened by the ignition operation of the button and held open only at the time of combustion, a main valve 5 that opens and closes in accordance with the point-extinguishing operation of the point-extinguishing button, and a thermal power control lever that is also provided in front of the body A gas amount adjusting valve 7 for adjusting the gas amount to the burner 2 by the operation of 6 is provided. Further, the gas pipe 3 is provided with a boost pipe 8 that bypasses the gas amount adjusting valve 7 and an electromagnetic valve 9 that opens and closes a gas flow path in the boost pipe 8 to constitute boost means. That is, when the electromagnetic valve 9 is opened, the fuel gas is also supplied from the boost pipe 8 to the burner 2 and exceeds the maximum gas amount that can be supplied by the gas amount adjusting valve 7. Here, when the boost pipe 8 is used, a gas amount of 1.2 to 1.5 times the rating is supplied.

  On the other hand, in the vicinity of the burner 2, an ignition electrode 10 for igniting the fuel gas by the operation of the igniter and a thermocouple 11 for detecting the combustion flame are provided, and are electrically connected to a controller 12 serving as a control means. Yes. The controller 12 includes a known microcomputer, a memory for storing various programs, a software timer, and the like. The controller 12 is provided in front of the ignition electrode 10 and the thermocouple 11 as well as the electromagnetic safety valve 4 and the electromagnetic valve 9 and the body. The boost switch 13, the combustion indicator lamp 14, and the ignition switch 15 that is turned on by the ignition operation of the fire extinguishing button are also electrically connected.

  Therefore, in the stove unit 1, when the point-off button is ignited, the electromagnetic safety valve 4 and the main valve 5 are opened, gas is supplied to the burner 2, and an ON signal of the ignition switch 15 is obtained. The controller 12 operates the igniter to continuously discharge the ignition electrode 10 and ignite the burner 2. When the thermocouple 11 detects the combustion flame of the burner 2, the controller 12 energizes the electromagnetic safety valve 4 to keep the valve open state. On the other hand, when a predetermined electromotive force cannot be obtained from the thermocouple 11 due to poor ignition or a misfire in the combustion flame, the controller 12 stops energization of the electromagnetic safety valve 4 and closes the electromagnetic safety valve 4, so that the fuel gas The extinction safety function to stop the supply of power is to be executed.

When the boost switch 13 is pushed during combustion of the burner 2, the controller 12 can perform boost-up control that opens the electromagnetic valve 9 to make a temporary strong heating power. Hereinafter, this boost-up control will be described based on the flowchart of FIG.
First, when the boost switch 13 is pushed in S1, combustion of the burner 2 is confirmed in S2, and if the burner 2 is not burning, execution of boost-up is prohibited in S3. If the burner 2 is in combustion in S2, it is confirmed in S4 whether or not the stored number of boost-ups has reached two. If it has reached the second time, it is determined that this is the third boost-up request this time, and execution of the boost-up is prohibited again in S3. When boosting is prohibited in S3, the user may be notified of this by blinking the combustion display lamp 14, a ringing buzzer provided separately, or the like.

On the other hand, if the stored number of boost-ups is less than 2, the solenoid valve 9 is opened in S5, fuel gas is also supplied from the boost pipe 8 to the burner 2, and boost-up is executed. Start the timer (2-5 minutes). This boost-up is also notified by the blinking of the combustion display lamp 14 that was lit during combustion of the burner 2. However, when the combustion display lamp 14 is also used as a boost-up non-execution notification, it is necessary to change the blinking pattern.
When the boost switch 13 is pushed during the boost-up (S6), the solenoid valve 9 is closed in S7, the boost-up is terminated, the boost power is restored to the pre-boost-up heating power, and the boost timer is reset to S1. That is, it can be arbitrarily canceled even during the boost-up.

When the boost timer expires in S8, the solenoid valve 9 is closed in S9 to end the boost-up, return to the heating power before the boost-up, and add 1 to the stored number of boost-up executions.
When the fire extinguishing button is extinguished in S10, the electromagnetic safety valve 4 is closed in S11, the supply of fuel gas to the burner 2 is stopped, the burner 2 is extinguished, and the stored boost-up is executed. Reset the count. Here, the combustion display lamp 14 is also turned off. When the point-extinguishing button is not operated, the routine returns to S1 and normal combustion is continued. When the boost switch 13 is pressed, boost-up can be executed up to two times with reference to the stored number of times.
Similarly, when the fire extinguishing button is operated during the boost-up, the stored number of boost-ups is reset.

  Thus, according to the gas stove of the above embodiment, the controller 12 stores the number of boost-up executions from the ignition to the extinguishing of the burner 2, and when the stored number of executions reaches two, the burner 2 thereafter Until the fire extinguishes, the execution of boost-up is prohibited regardless of the operation of pressing the boost switch 13, so that a temporary strong fire power can be obtained by boost-up and cooking such as fried rice and stir-fried vegetables is effective. On the other hand, it is possible to prevent over-burning and scorching of the food to be cooked by restricting the cooking with high heat power more than necessary. In addition, overheating of the container can be prevented and the feeling of use is not impaired. Accordingly, it is possible to maintain good cooking performance by preventing overheating of the object to be cooked and the body while ensuring usability by boosting up.

In particular, since the controller 12 performs the boost up instructed to be executed by the boost switch 13 only for a predetermined time set in advance, it is possible to execute an appropriate boost up in a sufficient time necessary for actual high-power cooking such as fried rice and stir-fried vegetables. It becomes.
Further, when the burner 2 is extinguished, the controller 12 resets the stored boost-up execution count, so that the boost-up count is limited only during one continuous combustion of the burner 2. Therefore, when the burner 2 is extinguished once and the next heat cooking is performed, the boost-up can be executed again up to a predetermined number of times, and the usability is not impaired.

The number of boost-ups is not limited to two, and may be increased or decreased as appropriate according to the burner performance and the like. Similarly, the boost timer time can be changed. In the above configuration, the timer time for the second boost up is the same as the timer time for the first boost up. However, in the second and subsequent boost ups, the timer time may be shorter or longer than in the first boost up. There is no problem. By setting the timer time individually in this way, the second and subsequent boosts can be executed in a more appropriate time. In particular, since the second and subsequent high-power cooking is often sufficient in a shorter time than the first time, if the second and subsequent timers are set to a short time, energy loss can be suppressed and safety can be improved.
On the other hand, a timer change lever may be provided on the front of the body so that the boost timer can be changed by user selection.

In addition, in the above form, the number of boost-up executions is counted when the boost timer expires, but it is also possible to count the number of executions when the boost switch is canceled halfway through the boost switch. it can.
Furthermore, the boost-up display is not limited to the combined use of the combustion display lamp, and a dedicated display unit (lamp, liquid crystal display unit, etc.) may be provided to clearly notify the execution of boost-up or the execution prohibited state.

On the other hand, the boost means is not limited to the configuration of the boost pipe and the solenoid valve as in the above-described form, but as described in Patent Document 1 presented in the background art, the auxiliary boost dedicated to boosting that burns by the ON operation of the boost switch Other configurations such as providing a burner, or providing a boost-up dedicated fan that supplies combustion air to the burner only when the boosting unit is operating to optimize the air-fuel ratio during boost-up are also possible. It is.
In addition, when the boost means is provided in each of the plurality of stove parts, the present invention may be similarly applied to each stove part. Of course, the present invention is not limited to the gas stove, but can be applied to other cooking devices such as a gas grill.

It is a schematic block diagram of the stove part of a gas stove. It is a flowchart of boost-up control.

Explanation of symbols

  1 .. Stove section, 2 .. Burner, 3 .. Gas piping, 4 .. Electromagnetic safety valve, 8 .. Boost pipe, 9 .. Solenoid valve, 12 .. Controller, 13.

Claims (4)

A burner in which a gas supply amount is set within a predetermined range, boost means for increasing the gas supply amount to the burner exceeding the predetermined range, control means for controlling combustion of the burner and operation of the boost means, A heating cooker comprising boost operation means for instructing the control means to execute the boost means,
The control means stores the number of executions of the boost means between ignition and extinguishing of the burner. When the stored number of executions reaches a predetermined number set in advance, the time until the burner extinguishes thereafter. Is a cooking device characterized in that execution of the boost means is prohibited regardless of an execution instruction by the boost operation means.   The cooking device according to claim 1, wherein the control means executes the boost means instructed to be executed by the boost operation means only for a predetermined time set in advance.   The cooking device according to claim 2, wherein the control means sets a predetermined time for executing the second and subsequent boost means at a time equal to or different from a predetermined time for executing the first boost means. .   The cooking device according to any one of claims 1 to 3, wherein when the burner is extinguished, the control means resets the stored number of executions of the boost means.

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