JPH062839A - Gas table equipped with overheating-preventing device - Google Patents

Abstract

PURPOSE:To obtain a gas table equipped with an overheating preventing device without being restricted by the kind and method of cooking. CONSTITUTION:When a human body detecting sensor 10 detects a human body, an overheating preventing device is not operated even when a set temperature is achieved and a holding circuit is operated. When there is a cooker, it is decided that a device is safe and the overheating preventing device is not operated whereby high-temperature cooking or continuous cooking while moving or replacing pots can be effected and it is convenient.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas table (gas stove) with an overheat prevention device.

[0002]

2. Description of the Related Art A conventional gas table with an overheat prevention device is shown in FIG. 1 is a gas table body, 2 is a gas burner, 3
Is a temperature sensor provided at the center of the gas burner 2, and is normally raised by the force of the spring. When the pot is hung, it is pushed down by the pot bottom and lowered. 5 is a gas line, 6 is a shutoff valve (solenoid valve), 7 is an ignition button, 8
Is a control circuit for automatically shutting off the shutoff valve 6 when the temperature of the bottom of the pot detected by the temperature sensor 4 is equal to or higher than a certain temperature. This is intended to prevent empty cooking of the pot. FIG. 4 shows a control flowchart of the conventional overheat prevention device.

[0003]

However, the gas table with the overheat prevention device has the following drawbacks.

A. Since cooking that requires a high temperature such as cooking using a grill is not possible, the types that can be cooked are limited.

B. Since it is not possible to cook without the pan and the temperature sensor 4 contacting each other for a long time, the cooking method is limited.

C. Even if you try to continue cooking while changing the pot while the fire is on during cooking, it may be inconvenient because the pot will automatically extinguish once it separates from the temperature sensor.

An object of the present invention is to provide a gas table with an overheat preventive device which does not have the above-mentioned disadvantages a to c.

[0008]

The structure of a gas table with an overheat prevention device according to the present invention is as follows.

A temperature sensor is arranged in the center of the gas burner so as to be able to move up and down, and when the pot is placed on Gotoku, the temperature sensor comes into contact with the bottom of the pot to detect the temperature of the pot bottom, and when this temperature is above a set temperature. In the gas table with an overheat prevention device that automatically extinguishes the gas burner, a human body detection sensor for detecting the person existing in front of and in the vicinity of the gas table is provided, and if the human body detection sensor detects a person, the temperature is detected. A gas table with an overheat prevention device that incorporates a holding circuit in the control circuit that holds automatic fire extinguishing even when the temperature of the pot bottom detected by the sensor is above the set temperature.

The following functions may be added to the above structure.

A. Set a hold time and automatically extinguish the fire when this time has elapsed.

B. When the human body detection sensor detects a human body, it is possible to arbitrarily set the set temperature to automatically extinguish the fire.

C. When multiple stoves are used at the same time and the temperature detected by any one of the temperature sensors exceeds the set temperature, the automatic fire extinguishing of this stove is suspended or is suspended for a certain period of time or is automatically extinguished. Alternatively, the set temperature can be set arbitrarily.

D. Even if the human body detection sensor detects a person, the operation of the holding circuit is stopped to function as a normal overheat prevention device.

E. When the human body detection sensor detects a person and the temperature sensor detects the temperature higher than the set temperature of the overheat prevention device, the holding circuit can be arbitrarily released or the set temperature can be changed.

F. A lamp is lit or a buzzer is sounded so that the cook knows that the hold circuit is active while the hold circuit is active.

[0017]

[Function] Hold the pan as long as the human body detection sensor detects a person, even if the temperature sensor exceeds the set temperature while the gas burner is ignited and cooking is performed by pressing the ignition button on the pot The circuit does not work and the fire does not extinguish automatically. However, when the human body detection sensor does not detect the human body for a certain period of time or longer, the overheat prevention device operates to automatically extinguish the fire.

[0018]

EXAMPLE FIG. 1 shows an example of the present invention. 1 is a gas table main body, 2 is a gas burner, 3 is Gotoku, 4 is a temperature sensor provided in the center of the gas burner 2, and it is normally raised by the force of a spring. It is a structure. 5 is a gas line, 6 is a shutoff valve (electromagnetic valve), 7 is an ignition button, 8 is a control circuit, and shuts off the shutoff valve 6 when the temperature of the pan bottom detected by the temperature sensor 4 is equal to or higher than a certain temperature. Extinguish automatically.

Reference numeral 9 is an arbitrary setting button, and 10 is a human body detection sensor for detecting a person in front of and in the vicinity of the gas table. When the human body detection sensor 10 detects a human body, it is not detected. In this case, the control circuit 8 carries out the following control.

A. As long as the human body detection sensor 10 detects a person while the temperature sensor 4 is above the set temperature while the gas burner 2 is ignited and cooking is performed by pressing the ignition button 7 over the pan, The hold circuit is activated and the fire will not extinguish automatically. However, when the human body detection sensor 10 does not detect the human body for a certain period of time or longer, the overheat prevention device operates to automatically extinguish the fire.

B. When the hold time is set, the fire is extinguished automatically when this time has elapsed.

C. When the human body detection sensor 10 detects a human body, if the set temperature for automatically extinguishing the fire is arbitrarily set,
Do not extinguish the fire until this arbitrary set temperature is reached.

D. In a gas table having a plurality of stoves, they are individually controlled.

E. If the human body detection sensor 10 is configured to be able to stop the operation of the holding circuit and function as a normal overheat prevention device even if the human body detection sensor 10 detects a person, the overheat prevention device functions normally. Let

F. The human body detection sensor 10 detects a person,
When the temperature sensor 4 detects the temperature higher than the set temperature of the overheat prevention device, if the holding circuit is arbitrarily released or the set temperature can be changed and set, the automatic fire extinguishing is performed simultaneously with the release. Continue to use until the changed temperature is reached.

G. If the lamp is lit or the buzzer sounds so that the cook knows that the holding circuit is operating while the holding circuit is operating, the lamp is lit or the buzzer sounds. .

[0027]

The gas table with the overheat prevention device according to the present invention is configured such that, when the human body detection sensor detects a person, even if the temperature sensor detects a temperature equal to or higher than the set temperature, the automatic fire extinguishment is suspended. Therefore, the following effects are achieved.

A. Since the food can be cooked at a temperature higher than the set temperature to prevent overheating, the variety of dishes that can be cooked is expanded.

B. Since it can be used in any cooking method, it is easy to use.

C. It is convenient because the fire will not be extinguished automatically even if you change the pan or slip while cooking.

D. It is safe to operate the overheat protection device normally.

[Brief description of drawings]

FIG. 1 is an explanatory view of a gas table with an overheat prevention device according to the present invention.

FIG. 2 is an explanatory diagram showing an example of a control flowchart of a control circuit according to the present invention.

FIG. 3 is an explanatory view of a conventional gas table with an overheat prevention device.

FIG. 4 is an explanatory diagram showing a control flowchart of a conventional gas table with an overheat prevention device.

[Explanation of symbols]

 1 gas table body 2 gas burner 3 Gotoku 4 temperature sensor 5 gas line 6 shutoff valve (solenoid valve) 7 ignition button 8 control circuit 9 arbitrary setting button 10 human body detection sensor

Claims (7)

[Claims] 1. A temperature sensor is arranged in the center of a gas burner so as to be able to move up and down, and when a pot is placed on Gotoku, the temperature sensor comes into contact with the bottom of the pot to detect the temperature of the pot bottom, and this temperature is above a set temperature. In a gas table with an overheat prevention device that automatically extinguishes the gas burner at the time of, a human body detection sensor for detecting a person existing in front of and in the vicinity of the gas table is provided, and when this human body detection sensor detects a person, Is a gas table with an overheat prevention device that incorporates a hold circuit in the control circuit that holds automatic fire extinguishing even if the temperature of the pan bottom detected by the temperature sensor is above the set temperature. 2. The gas table with the overheat prevention device according to claim 1, wherein a holding time is set, and when the time has elapsed, the fire is automatically extinguished. 3. A gas table with an overheat prevention device according to claim 1, wherein the set temperature for automatic fire extinguishing can be arbitrarily set. 4. When a plurality of stoves are used at the same time, and when the temperature detected by any one of the temperature sensors exceeds a set temperature, automatic fire extinguishing of only this stove is suspended or is suspended for a certain period of time. The gas table with the overheat prevention device according to claim 1, 2 or 3, wherein the gas table is configured to be turned on, automatically extinguished, or to be able to arbitrarily set a set temperature. 5. A structure in which even if the human body detection sensor detects a person, the operation of the holding circuit is stopped so that the human body detection sensor can function only as a normal overheat prevention device. 4. A gas table with an overheat prevention device according to 4. 6. When the human body detection sensor detects a person and the temperature sensor detects a temperature higher than a preset temperature of the overheat prevention device, the holding circuit can be arbitrarily released or the preset temperature can be changed. Claims 1, 2, 3, comprising
Gas table with overheat prevention device described in 4, 5. 7. A lamp is lit or a buzzer sounds so that a cook can know that the holding circuit is operating while the holding circuit is operating.
Gas table with overheat prevention device described in 4, 5, and 6.