KR20130059585A - Auto control method and apparauts of heating power by sensing of cooking utensils - Google Patents

Abstract

PURPOSE: An automatic heating power control method by cooking utensil detection on a gas stove, and a device thereof are provided to prevent unnecessary energy consumption as the device automatically controls weak heating force for a certain period of time once a cooking utensil is removed from the gas stove during cooking. CONSTITUTION: An automatic heating force control method by cooking utensil detection on a gas stove includes the following steps: heating force is turned up and cooking is progressed once a cooking utensil is detected on a burner of a gas stove(S104). If the cooking utensil is appeared to be overheated comparing the current temperature entered from a temperature sensor which detects the temperature of the burner during cooking in intense heating force and a pre-set over heating standard temperature, the burner is automatically extinguished by operating a safety valve(S105, S106). The intensity of heating force is reduced if the cooking utensil is not detected in a cooking utensil detection process. If the cooking utensil is not detected in weak heating force for the waiting time set before, an alarm sound is generated and the heat extinguishes automatically(S111, S113). [Reference numerals] (AA) Start; (BB,DD,GG) No; (CC,EE,HH) Yes; (FF) End; (S101) Micro switch ON; (S102) Ignition; (S103) Is cooking utensil exists?; (S104) Cook with strong heating force; (S105) Current temperature >= overheat determination temperature ?; (S106,S113) Automatic heat extinguishing; (S110) Weak heating force control; (S112) Generate alarm sound

Description

Method and device for automatic control of firepower according to gas cooker detection {Auto control Method and Apparauts of heating power by sensing of cooking utensils}

The present invention relates to a method for detecting a cooking utensil of the gas range and automatic control of fire power, and more particularly, when the cooking utensil is put on the burner of the gas range and ignited, when the user lifts and removes the cooking utensil from the gas range during cooking. It relates to a firepower automatic control method and apparatus according to the detection of cookware of the gas range to detect this to change the firepower to a weakening power for a predetermined time.

In general, when cooking using a gas range, the cooking utensils are put on the burner of the gas range and ignited to cook.

This type of gas cooker is commonly used when a user accidentally presses a cook start key without placing a cookware on the burner, especially when a child presses the cook start key without the cookware on the burner. Although there is no cooking utensil, there is a problem that a large safety accident such as a burn may occur as well as a risk of fire due to ignition.

The prior art for improving this problem is to provide a gas range with a cooking utensil detection function so that cooking can be made safely by cooking only when the cooking utensil is placed on the burner.

Such a prior art is disclosed in Korean Patent Laid-Open Publication No. 1998-0010130 (a control device for a gas range having a cooking apparatus sensing function).

1 is a flowchart of a control process of a gas range having a cooking appliance detection function according to the related art, in which operation is started when power is applied, reading a signal input from a key input unit, and setting a cooking process; Determining whether the cookware is placed on the burner by reading a signal input from the cookware detection switch when the cook start key is input by determining whether the start key is pressed, and cooking when the cookware is not placed. To stop and display the occurrence of an error, and when cooking utensils are placed, the process of cooking while adjusting the thermal power and displaying the cooking progress and status, and determining whether cooking is completed, When the step is completed, the alarm and display for notifying that the cooking is completed, and then ends the operation.

The control method of the gas range equipped with a cooking utensil detection function according to the prior art is to detect the cooking utensil on the burner through the cooking utensil sensor, so that the ignition is performed, the safety accident caused by the ignition without cooking utensils There is an effect that can be prevented.

However, the gas cooker having a cooking utensil detection function according to the related art stops cooking unconditionally and displays an error when cooking utensils are not detected during cooking, and moves the cookware briefly according to the needs of the user during cooking. When the cooking utensils are removed from the gas range, such as automatic fire extinguishing, there is a problem that there is an inconvenience to ignite again if you need to continue cooking.

Therefore, in order to improve the problems of the prior art, the cooking utensil is placed on the burner of the gas range, and when the cooking utensil is not detected before the cooking is finished after the cooking is started, the strength of the fire is reduced, and again the cooking utensil is When detected, the power of the firepower is adjusted to the previous firepower, so that the cooking power of the gas range is maintained so that the cooking power is maintained only when the cooking utensils are moved briefly, and the cooking power is continued when the cooking utensils are raised. The purpose is to provide an automatic fire control method according to the present invention.

In order to achieve the object of the present invention, the automatic firepower control process according to the cooking appliance detection of the gas range includes a cooking apparatus placed on the burner of the gas range, and after the cooking is started, the microcontroller for controlling the point, fire extinguishing and thermal power is cooked. In the automatic fire control method according to the detection of cookware of the gas range to automatically adjust the intensity of the fire according to whether the detection, the microcontroller is a signal input from the cooking utensil sensor when the ignition signal is input to the burner of the gas range A cooking utensil determining step of determining whether there is a cooking utensil in the burner of the gas range by using; Reinforcing cooking process for increasing the strength of the firepower and cooking when the cookware is detected; A superheating process for automatically extinguishing a safety valve by driving a safety valve when it is determined that the overheating temperature is compared with a current temperature input from a temperature sensor for detecting burner temperature during the reinforcement cooking and a preset superheating reference temperature; A weakening power standby process of reducing the intensity of the fire power when the cooking utensil is not detected in the cooking utensil determination process; And an automatic fire extinguishing process for generating an alarm sound and automatically extinguishing the cooker when the cooking utensil is not detected during the waiting time set in the weakening power.

Here, when the cooking utensils are detected within the set waiting time in the weakening power standby process, the step of increasing the power of the fire power to return to the reinforcing power cooking process, characterized in that further comprises.

In order to achieve the object of the present invention, the automatic thermal power control apparatus according to the detection of the cooking apparatus of the gas range includes a temperature measuring unit for converting a sensing signal of a temperature sensor and a temperature sensor provided in a plurality of burners into an electrical signal, and cooking in each burner. A cooker detecting unit for detecting whether the utensil is raised, a user selection unit for user setting including cooking time and temperature setting, and the presence or absence of cookware according to the input value inputted from each unit It automatically adjusts the intensity of the burner, and if the burner is judged to be overheated, it operates the safety valve to cut off the gas supply. In the automatic control device, the microcontroller converts the burner temperature input from the temperature measuring unit into digital data. A temperature input unit for inputting the light; An overheat temperature determination unit comparing the current temperature input by the temperature input unit with a preset overheat reference temperature to determine whether the overheat temperature is present; A timer for counting and supplying time; A cooking appliance judging unit for determining whether a cooking utensil is placed on a burner by a signal input from the cooking utensil detecting sensor; A user selection input unit for inputting a user's operation setting through the user selection unit; Generates an alarm sound according to the overheat input from the overheat temperature determination unit, outputs a thermal power control control signal and an alarm sound generation signal according to whether the cooking utensil is input from the cooking utensil determination unit, and outputs a safety valve control signal. Generating control unit; A solenoid valve control unit for driving a solenoid valve for controlling a gas supply amount according to whether the cooker judging unit detects a cookware; A safety valve control unit outputting the safety valve driving signal for cutting off a gas supply according to a control signal of the control unit; And a buzzer driver for driving the buzzer under the control of the controller 116 to generate an alarm sound to the user.

The automatic fire control method and apparatus according to the cooking appliance detection of the gas range according to the present invention automatically adjusts to a weakening power for a predetermined time when the cooking utensil is separated from the gas range during cooking, so that the user lifts the cooker for a while and cooks it again. It does not automatically extinguish even when laying down, and keeps the fire power weak so that not only burn prevention, but also unnecessary energy saving can be achieved, and when the user puts the cookware back on the gas range, it automatically rises to the previous fire power. There is an effect that can continue cooking with the same firepower without the need for re-ignition or fire control.

In addition, if the cooking utensils are removed from the burner for more than the set time, the alarm is automatically extinguished, so that there is an effect of preventing a safety accident such as a fire. Automatic fire extinguishing has the effect of providing convenience without the need for a separate valve locking operation.

In addition, when the temperature input through the temperature sensor is set to the overheating temperature is automatically extinguished, there is an effect that can prevent safety accidents such as fire.

1 is a flow chart of a control process of a gas range having a cooking appliance detection function according to the prior art,
2 is a block diagram of a firepower automatic control apparatus according to the detection of cookware in a gas range according to an embodiment of the present invention;
3 is a flow chart of a process for automatic thermal power control according to the detection of cookware in a gas range according to an embodiment of the present invention.

Referring to the configuration and operation according to an embodiment of the present invention in detail with reference to the accompanying drawings as follows.

FIG. 2 is a block diagram of an automatic fire control apparatus according to a cooking appliance detection of a gas range according to an embodiment of the present invention, and the detection signal of the temperature sensor 101 and the temperature sensor 101 provided in each burner is electrically transmitted. A temperature measuring unit 102 for converting into a signal, a cooking utensil detecting unit 103 provided in each burner, a user selecting unit 104 for setting a user required for cooking such as a time setting, a temperature setting, and the respective units ( 102) (103) (104) detects the presence of cookware according to the input value input automatically adjusts the strength of the fire, if the burner is determined to be overheating temperature by driving the safety valve to cut off the gas supply, Is not detected, the microcontroller 110 for generating an alarm sound, the solenoid valve driving unit 131 for varying the intensity of the fire by adjusting the gas supply amount according to the control signal of the microcontroller 110, and the microcontroller ( 110) Turning off a gas valve by the control consists of a safety valve drive section 132 to block the gas supply.

Here, the microcontroller 110 is a temperature input unit 111 for converting the burner temperature input from the temperature measuring unit 102 into digital data, and inputs the current temperature and the preset temperature input from the temperature input unit 111. The cooking apparatus is controlled by the superheat temperature determination unit 112 for comparing the superheat reference temperature to determine whether the superheat temperature is determined, the timer 113 for counting and supplying the time, and the signal input from the cookware sensor 103. The cooker judging unit 114 for judging whether it is placed on a burner, a user selection input unit 115 for inputting a user's operation setting through the user selecting unit 104, and input from the overheating judging temperature 112 Generates an alarm sound according to whether or not overheated, and outputs a thermal power control control signal and an alarm sound generation signal, and generates a safety valve control signal according to whether the cookware is detected from the cookware judging unit 114. The control unit 116, the solenoid valve control unit 117 for driving the solenoid valve driving unit 131 for adjusting the gas supply amount according to whether the cooking utensil determination unit 114 detects the cooking utensil 114, and the overheat temperature determination unit ( 112 and the safety valve control unit 118 for driving the safety valve drive unit 132 to cut off the gas supply in accordance with the control signal of the control unit 116 and the buzzer 133 by the control of the control unit 116. Is composed of a buzzer driver 119 for driving to generate an alarm sound to the user.

3 is a flowchart of a process for automatically controlling fire power according to the detection of cookware of a gas range according to an embodiment of the present invention. Cooker determination process (S101 ~ S103) to determine whether there is a cooking utensil in the burner of the range, and if the cooking utensil is detected, reinforcement cooking process (S104) to increase the strength of the fire power and cooking, and the reinforcement cooking If it is determined that the overheat compared with the current temperature input from the temperature sensor 101 for detecting the burner temperature and the preset overheating reference reference temperature, the overheating process (S105) (S106) of controlling the safety valve drive unit to automatically extinguish; If the cooking utensils are not detected in the cooking utensil determination process (S101 ˜ S103), the weakening power waiting process (S110) for reducing the intensity of the thermal power and the waiting time set in the weakening power waiting process (S110). If the re-organization is not done automatically detect the digestive process (S112) (S113) to generate an audible alarm and automatic fire.

Here, the reinforcing force and the weakening force are automatically adjusted by the microcontroller 110 at the burner of the gas range, and the solenoid valve driving unit 131 is driven by the solenoid valve control signal generated by the microcontroller 110. To control the gas supply amount is adjusted accordingly. Here, the strength of the thermal power is divided into 1 to 3 stages, the weakening power for cooking utensil detection waiting is set to 1 stage, and the reinforcing force for cooking may be set to 2 to 3 stages as the cooking stage of the user.

A detailed operation of the automatic fire power control method according to the cooking appliance detection of the gas range according to the embodiment of the present invention configured as described above will be described in more detail with reference to FIGS. 2 and 3.

First of all, the present invention detects the presence of cooking utensils and automatically adjusts the power of fire according to the presence of cooking utensils after ignition, regardless of whether the cooking utensils are placed on the gas range, and whether cooking utensils are present even during cooking. It continuously detects and automatically adjusts the intensity of fire based on the detection result.

Figure 3 is a flow chart of the automatic power control process according to the cooking utensil detection of the gas range according to an embodiment of the present invention, when the user turns on the micro switch of the gas range for cooking, the ignition is made with or without cooking utensils. (S101) (S102)

While the ignition is performed, the control unit 116 of the microcontroller 110 detects whether the cooking utensil is placed on the burner of the gas range through the cooking utensil detecting unit 103 and then, through the cooking utensil determining unit 114. (S103)

If it is determined that the value input from the cooker judging unit 114 is placed on the burner, the power of the firepower is adjusted to the firepower selected by the user (reinforcement or weakening power), and the cooking is performed. )

If the burner temperature input from the temperature sensor 101 is determined to be a preset overheating temperature by the overheat temperature determining unit 112 while the cooking is performed by the user selected thermal power, the control unit 116 is a safety valve control unit 118. By driving the safety valve driving unit 132 through the) to cut off the gas supply to automatically extinguish. (S105) (S106)

On the other hand, when the user wants to ignite by turning on the micro switch of the gas cooker for cooking, ignition occurs regardless of the presence or absence of cooking utensils (S101) (S102) with the ignition detects the presence of cookware on the burner of the gas cooker. As a result, when cooking utensils are not detected, the intensity of the minimizing force is adjusted.

That is, when the control unit 116 of the microcontroller 110 is ignited and the cooking utensil judging unit 114 determines that the cooking utensil is not placed on the burner, the strength of the thermal power is adjusted to the first weakening force. In order to minimize the gas supply, the solenoid valve driving unit 131 is driven through the solenoid valve control unit 117.

After the cooking utensils are not detected and the firepower is minimized, the controller 116 does not detect the cooking utensils for a predetermined time Δt supplied through the timer 113 (S111). After generating an alarm sound through the (117) to alert the user to drive the safety valve through the safety valve control unit 118 to automatically extinguish. (S112) (S113)

If the user checks the alarm sound and puts the cooking utensil on the burner again, the cookware detecting unit 103 receives the input and drives the solenoid valve driving unit 131, so that the strength of the fire power is increased as a reinforcing force for cooking. It will return and you can continue cooking.

As described above, the embodiment of the present invention provides convenience that does not require a separate fire extinguishing operation by automatically extinguishing after automatically adjusting to the weakening power even if the cooking utensil is separated from the burner after the completion of cooking in the gas range. When the user removes the cookware from the burner, it can be changed to weakening power for a set time to prevent safety accidents such as burns due to reinforcement power. You can return and continue cooking.

In addition, although specific embodiments of the present invention have been described and illustrated above, it will be apparent that the present invention may be variously modified and implemented by those skilled in the art, such as various applications such as a gas oven, an electric range, and the like. It's work.

It should be understood, however, that such modified embodiments are not to be understood individually from the spirit and scope of the invention, and such modified embodiments are intended to be included within the scope of the appended claims.

101: temperature sensor 102: temperature measuring unit
103: cookware detection unit 104: user selection unit
110: microcontroller 111: temperature input unit
112: overheat temperature determination unit 113: timer
114: cooker judging unit 115: user selection input unit
116 control unit 117 solenoid valve control unit
118: safety valve control unit 119: buzzer drive unit
131: solenoid valve driver 132: safety valve driver
133: buzzer

Claims (6)

The cooker is placed on the burner of the stove to start cooking, and the microcontroller that controls the point, fire and thermal strength controls the cooker of the stove to automatically adjust the strength of the cooker according to whether the cooker is detected. In the automatic control method,
The microcontroller is a cooking appliance determination process for determining whether there is a cooking utensil in the burner of the gas range by the signal input from the cooking utensil sensor when the ignition signal is input to the burner of the gas range;
Reinforcing cooking process for increasing the strength of the firepower and cooking when the cookware is detected;
A superheating process for automatically extinguishing a safety valve by driving a safety valve when it is determined that the overheating temperature is compared with a current temperature input from a temperature sensor sensing a burner temperature during cooking in a state of reinforcing force and a preset superheating reference temperature;
A weakening power standby process of reducing the intensity of the fire power when the cooking utensil is not detected in the cooking utensil determination process; And
Automatic fire extinguishing process for generating a warning sound and automatic fire extinguishing if no cooking utensils are detected during the set waiting time in the weakening power. The method of claim 1,
When the cooking utensils are detected within the set standby time in the weak thermal power standby process, increasing the power of the firepower to return to the reinforcing power cooking process, characterized in that the automatic heating according to the detection of the cooking utensils of the gas range Way. The method of claim 1,
The standby time of the weak thermal power standby process is a firepower automatic control method according to the cooking utensil detection of the gas range, characterized in that set to 1 to 20 seconds. The method of claim 1,
The reinforcement cooking process and the weakening power standby process is a thermal power automatic according to the cooking utensil detection of the gas range, characterized in that by varying the intensity of the thermal power by driving the solenoid valve to reduce or increase the gas supply amount by the microcontroller Control method. The method of claim 1,
And in addition to the automatic fire extinguishing process, if the cooking utensil is detected after the alarm is generated, returning to the reinforcement cooking process. Including a temperature measuring unit for converting the sensing signal of the temperature sensor and the temperature sensor provided in the plurality of burners into an electrical signal, a cooker detecting unit for detecting whether the cooker is placed on each burner, time setting, temperature setting User selection unit for user setting necessary for cooking, and the presence of cooking utensils according to the input value input from each unit and automatically adjusts the intensity of the fire power, if the burner is determined to be overheating temperature by driving the safety valve In the automatic fire power control device according to the detection of cookware of the gas range consisting of a microcontroller to cut off the supply, and generates a warning sound when cookware is not detected,
The microcontroller includes a temperature input unit for converting the burner temperature input from the temperature measuring unit into digital data and inputting the digital data;
An overheat temperature determination unit comparing the current temperature input by the temperature input unit with a preset overheat reference temperature to determine whether the overheat temperature is present;
A timer for counting and supplying time;
A cooking appliance judging unit determining whether a cooking utensil is placed on a burner by a signal input from the cooking utensil detecting sensor;
A user selection input unit for inputting a user's operation setting through the user selection unit;
Generates an alarm sound according to the overheat input from the overheat temperature determination unit, outputs a thermal power control control signal and an alarm sound generation signal according to whether the cooking utensil is input from the cooking utensil determination unit, and outputs a safety valve control signal. Generating control unit;
A solenoid valve control unit for driving a solenoid valve for controlling a gas supply amount according to whether the cooker judging unit detects a cookware;
A safety valve control unit outputting the safety valve driving signal for cutting off a gas supply according to a control signal of the control unit; And
And a buzzer driver for driving the buzzer under the control of the controller 116 to generate an alarm sound to the user.

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