KR20100085455A - Gas range and method of controlling it - Google Patents

Abstract

The present invention can determine whether the driving by identifying the infant, and to provide a gas range that can detect the presence of the user in a plurality of directions using a plurality of copper sensor. To this end, the present invention, the timer for counting the passage of time; An input unit to receive information necessary for setting the timer; An output unit for outputting a warning message about a fire occurrence; A detection unit for generating a detection signal for distinguishing an adult from an infant using a plurality of dynamic detection sensors; Fire power change unit for changing the fire power of fire generated in the crater; In a state where the user is not detected from the sensing unit, when the timer reaches the first set time, the output unit is driven to output the warning message, and when the timer reaches the second set time, the thermal power is changed. A control unit which drives a unit to extinguish the fire; And a housing in which the respective parts and the crater are mounted.

Description

Gas range and its control method {GAS RANGE AND METHOD OF CONTROLLING IT}

The present invention relates to a gas range, and more particularly, to a gas range and a control method thereof that can prevent the risk of fire.

A gas range is a device in which a fire is ignited by using a gas, and the ignited fire heats a cooking utensil to cook food, and a fire caused by the ignited fire is frequently generated.

That is, when the cook is left in a state in which the cooker is turned on the fire of the gas cooker while the guest is coming or a telephone is being called, the cook may leave the cooking state of the cooker for a long time and a fire may occur due to overheating of the cooker.

In addition, in the state in which the gas range is left as described above, when the cooking contents boil over, the gas may be turned off while the gas is turned off and a fire may occur due to the gas explosion.

In the conventional technique for preventing the fire caused by the gas range, instead of having to keep the gas range when the user cooks using the gas range at home, the timer sets the required time and sets the required time. After that, a method for preventing the risk of fire due to gas stove operation and carelessness is used according to the buzzer sound.

In other words, a conventional gas stove for preventing a fire is equipped with an on / off solenoid valve on one portion of the gas pipe, and an infrared detector, a timer, a secondary relay, a primary relay switch, and a buzzer on one side of the gas range. Is equipped with an electronic circuit board is installed, the infrared sensor detects this when the cooker leaves the front of the stove while cooking while turning on the gas stove to start the timer. After the time set in the timer, the primary relay switch is activated and the buzzer starts to sound, and after 30 seconds, the secondary relay switch is activated to shut off the on / off solenoid valve to turn off the burner of the gas range. After the buzzer rings and stops. At this time, the timer may be selected and adjusted so that the buzzer sounds immediately after the cook leaves the gas range immediately or after 5 minutes, 10 minutes, and 30 minutes.

Conventional gas ranges as described above can prevent the risk of inadvertent fire by alerting the gas range to buzzers even if a cook is cooking at home and suddenly a customer comes or receives a phone call and cares about other things. Can be.

However, the conventional gas range as described above not only malfunctions due to the detection of one side, but does not operate when the timer is not set, and does not operate when the timer is not set. Overheating may occur due to long operation.

In addition, the conventional gas range is a form that is impossible to control the feedback by operating in the sequence control, even if the user puts another food again or the user comes again, the operation is determined by the timer already operated, the user is inconvenient You can feel it, and after a certain period of time due to unconditional digestion may cause the food to cool rapidly.

In addition, the conventional gas range does not provide a method for preventing damage due to malfunction of the infant.

An object of the present invention for solving the above problems, by identifying the infant can be determined whether the drive, using a plurality of copper sensor provides a gas range that can detect the presence of the user in a plurality of directions. It is.

The present invention for achieving the above object, a timer for counting the passage of time; An input unit to receive information necessary for setting the timer; An output unit for outputting a warning message about a fire occurrence; A detection unit for generating a detection signal for distinguishing an adult from an infant using a plurality of dynamic detection sensors; Fire power change unit for changing the fire power of fire generated in the crater; In a state where the user is not detected from the sensing unit, when the timer reaches the first set time, the output unit is driven to output the warning message, and when the timer reaches the second set time, the thermal power is changed. A control unit which drives a unit to extinguish the fire; And a housing in which the respective parts and the crater are mounted.

The present invention can determine whether the driving by identifying the infant, by detecting the presence or absence of the user in a plurality of directions using a plurality of copper sensor, by placing the copper sensor on the front and side up and down, By detecting the copper wire widely, even if the user exists in a certain work area instead of directly in front of the gas range, the gas range can be normally driven to prevent unnecessary malfunction.

In addition, the present invention can set the height of the detection sensor differently, the adult and the infant can be identified, thereby detecting the malfunction that the infant can perform.

In addition, in the present invention, since the basic setting of the timer is basically present in the microcomputer, it is possible to increase safety by always detecting unattended without setting the timer.

In addition, the present invention can always check the presence or absence of the user at the time of ignition of the crater, and prevent the malfunction when the user operates again by the feedback control, by adjusting the state of fire by a stepping motor after a predetermined time, the user's The original function of automatic detection can be realized even in a state of minimizing inconvenience.

In addition, the present invention can significantly reduce the failure rate and increase the accuracy by replacing the mechanical timer with a high amount of trouble with a microcomputer timer.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is an external configuration diagram of an embodiment of a gas range according to the present invention.

As shown in FIG. 1, the external configuration of the gas range according to the present invention is provided at the front of the housing to output information related to the housing 81 forming the appearance of the gas range, the time of the timer or the operation state of the gas range. The display 41 is mounted, the crater 82 is mounted on the plane of the housing and the fire is ignited by the gas, a plurality of copper sensor formed on the front of the housing to determine whether the user is an adult or an infant It is comprised including 51-56.

The motion detection sensors 51 to 56 have upper and lower portions 51 and 52 at the front left side of the housing, upper and lower portions 53 and 54 at the center of the front of the housing, and a right side at the front of the housing, in order to widen the presence or absence of a user or discriminating areas of adults and children. It is attached to the upper and lower 55 and 56. The dynamic sensing sensors may use various kinds of sensors which are used for detecting a moving object. On the other hand, in the following description, a user of an age appropriate to use the gas range is an adult, a user of an age inappropriate to use the gas range is an infant, and a user is referred to as an adult and an infant at the same time. Here, the adult does not refer to a legal adult, that is, a user over 19 years old, but merely refers to an user having an abstract sense of perception of using a gas range normally. In contrast, infants refer to users of an inappropriate age group to use the gas range independently, which may be different depending on each household or individual maturity, but may be children around 7 years old.

On the other hand, the upper end of the housing sensor (51, 53, 55) to obtain information that can identify whether the user is an adult or infant, the average of infants of an age of inappropriate age to control the gas range In consideration of the height and the like, these infants are mounted to face higher than the average height. The direction of orientation of the upper end of the copper sensor can be changed by an adult, but by making it hard to be easily manipulated, it can be prevented from being changed by an infant.

The lower end of the front of the copper sensor (52, 54, 56) is to determine the presence of the user, it is preferable to be mounted so as to face downward as possible so that users of all ages as possible. The lower end of the copper sensor may also be changed in orientation by the user.

The left and right motion detection sensors 51 and 52 at the top and bottom of the left of the front determine whether the user is in the left direction of the gas range and whether the user is an adult or an infant. The sensors 53 and 54 are mounted so as to face the left side as much as possible so that the presence or absence of the user on the left side of the front face is not overlapped. The functions of the upper left side copper detecting sensor 51 and the lower left side copper detecting sensor 52 are the same as those described in the upper part copper detecting sensor and the lower part copper detecting sensor. Meanwhile, in the above description, the left copper detecting sensor is described as being mounted on the left side of the front of the housing, but, alternatively, may be mounted on the left side of the housing.

In the case of the right motion detection sensors 55 and 56 mounted on the top and bottom of the right side of the front side, only the difference between the left and right motion detection sensors is left and right and is mounted on the housing with the same principle and structure.

The central dynamic detection sensors 53 and 54 located above and below the central portion of the front face perform a function of detecting a user in the center of the gas range.

On the other hand, the direction of the up, down, left and right of the copper sensor is preferably formed to be adjusted by the user, as described above. That is, when there is an infant determined to be inappropriate to control the gas range, the user (adult) adjusts the up-down direction of the lower-side copper sensor according to the height of the infant, so that the control unit according to the detection signal from the copper sensor You can make sure you distinguish between infants and adults. In addition, when the space around the gas range is formed to the left and right wide, the user adjusts the left and right direction of the left and right copper sensor, so that the controller controls the user on the left and right sides of the gas range according to the detection signal from the copper sensor. You can make an accurate judgment.

According to the present invention including the above configuration, the copper sensor is mounted on the upper and lower sides of the gas range housing and the upper and lower sides of the gas range housing to detect the area around the gas range widely. The controller is configured to determine whether the user is present and whether the child is an adult or an infant. In this case, when determined as an infant, the present invention may disable the operation except for extinguishing. If the user is not detected during the gas range operation, the user waits for a predetermined time by a predetermined time or a time set by the user. After that, you can reduce the firepower or extinguish the fire.

That is, the present invention generates a buzzer sound when the user is not detected for a certain time, and adjusts the gas range to a weak state by moving the stepping motor. In this state, the present invention generates a buzzer sound for a certain time, and if a user is not detected for a certain time, a solenoid valve and a magnetic power unit (MPU) for controlling the gas inflow into the crater (generate magnetic force to the gas valve By driving the unit of controlling the opening and closing of the fire, the crater 82 is generated fire is extinguished, and if the user is detected during the timer operation, it initializes the whole process again and is reactivated.

In addition, the present invention operates by measuring the time without user detection based on the time of the initial state if the user does not set a predetermined time for the timer.

Figure 2 is an internal configuration diagram of an embodiment of a gas range according to the present invention.

Gas range according to the present invention having the external configuration as described above, as shown in Figure 2, the timer 70 for counting the passage of time, the input unit 20 for receiving information necessary for setting the timer, the timer Storage unit 30 that stores a variety of information, including the set time, the output unit 40 for displaying the operation of the timer or output a warning message, a detection signal for the presence of the user using a plurality of motion detection sensors It comprises a detection unit 50 for generating a, a fire power changing unit 60 for changing the fire power of the fire generated in the crater and a control unit for controlling the operation of each unit.

The timer 70 performs a function of electronically counting time under the control of the controller, and may be integrated with the controller.

The input unit 20 may be configured of a dial switch 21 for setting a timer or a thermal power control lever 22 for changing a thermal power. That is, the user can easily set the operation time of the timer using the dial switch.

The storage unit 30 stores a timer setting time and programs necessary for the execution of the present invention.

The output unit 40 may be configured by using a display 41 that is composed of an LCD, a PDP, an LED, and the like, and a speaker 42 that can output various kinds of sounds. That is, the display 41 may visually output the elapsed time of the timer, and the speaker may output a warning message according to the timer as a voice, a ringtone, or the like.

The sensing unit 50 may be composed of a plurality of copper detecting sensors 51 to 56 as described above.

The thermal power change unit 60 is composed of a solenoid valve for controlling gas inflow into the crater, a magnetic power unit (MPU) (a unit for generating magnetic force and controlling the opening and closing of the gas valve), and the like. It controls the flow of gas and changes the firepower. In addition, the thermal power changing unit may change the thermal power by directly rotating the thermal power control lever 22 using a stepping motor. That is, the thermal power change unit performs a function of changing the thermal power size of the firearm output through the fireball under the control of the controller.

The controller 10 is configured as a microcomputer to perform a function of controlling the functions of the components as described above.

3 is a flowchart illustrating an embodiment of a gas range control method according to the present invention.

When the fireball ignition request signal, i.e., a signal for rotating the thermal control lever 22, is input in the standby state (302), the controller analyzes the detection signals transmitted from the copper detection sensors to detect the upper and lower copper detection sensors. In all, it is determined whether a user is detected (first detection signal determination) 304.

As a result of the determination of the first detection signal, when the user is sensed only at the lower part of the copper detection sensor, the controller maintains the solenoid valve and the magnetic power unit of the thermal power change unit in an off state, thereby maintaining the fireball in the standby state without ignition. (306). At this time, the control unit may output a warning message for a predetermined time through the output unit.

As a result of the determination of the first detection signal, when the user is detected by both the upper and lower end copper detection sensors, the controller determines that the user requests the firing of the crater, so that the firing chamber is ignited (308).

After a predetermined time has elapsed after the fireball is ignited, the control unit again determines whether the user is detected by both the upper and lower dynamic detection sensors (second detection signal determination) 310.

As a result of the determination of the second detection signal, when the user is detected by both the upper and lower end dynamic detection sensors, it means that the user is near the gas range. Therefore, the controller does not take any action and performs the second detection signal determination process at regular intervals. Repeat.

As a result of the determination of the second detection signal, when the user is not detected by both the upper and lower copper detection sensors, or when the user is detected only by the lower copper detection sensor, the controller determines that only an infant, not an adult, is near the gas range, Operate (312).

When a predetermined time elapses after the timer is operated, the controller determines whether the user is detected by both the upper and lower dynamic detection sensors (third detection signal determination) 314.

As a result of the determination of the third detection signal, when the user is detected by both the upper and lower end dynamic detection sensors, it means that the user is near the gas range. Therefore, the controller initializes the timer (334) and then determines the second detection signal determination process ( Repeat 310).

As a result of the determination of the third detection signal, if the user is not detected at both the upper and lower copper detection sensors or only at the lower copper detection sensor, the controller determines whether the first preset time for outputting the warning message has been reached ( First set time determination) (316).

As a result of the first predetermined time determination, if the first predetermined time has not yet been reached, the controller repeats the third detection signal determining process 314 or the first predetermined time determining process 316 at regular intervals.

As a result of the determination of the first set time, when the first set time is reached, the controller drives an output unit to output a warning message (318). That is, the controller outputs a warning siren or a bell sound through the speaker of the output unit.

After the warning message is output, the control unit again determines whether the user is detected by both the upper and lower dynamic detection sensors (fourth detection signal determination) 320.

As a result of the fourth detection signal determination, when the user is detected by both the upper and lower end dynamic detection sensors, it means that the user is near the gas range. Therefore, the control unit stops outputting the warning message (322) and initializes the timer ( 334) The second detection signal determination process is repeated.

As a result of the fourth detection signal determination, if the user is not detected at both the upper and lower copper detection sensors, or only the user is detected at the lower copper detection sensor, the controller controls the thermal power changing unit to change the thermal power to a lower step (324).

After a predetermined time has elapsed after changing the thermal power to a low level, the controller again determines whether the user is detected by both the upper and lower dynamic detection sensors (fifth detection signal determination) 326.

As a result of the determination of the fifth detection signal, if the user is detected by both the upper and lower end dynamic detection sensors, it means that the user is near the gas range. Therefore, the control unit stops outputting the warning message (328) and initializes the timer ( 334) The second detection signal determination process is repeated.

As a result of the determination of the fifth detection signal, if the user is not detected at both the upper and lower copper detection sensors or only at the lower copper detection sensor, the controller determines whether the second preset time for extinguishing the fireball has been reached (second 2 determination of the set time) (330).

As a result of the determination of the second set time, if the second set time has not yet reached, the control unit repeats the fifth detection signal determining process 326 or the second setting time determining process 330 at regular intervals.

As a result of the determination of the second preset time, when the second preset time is reached, the controller drives the firepower changing unit to extinguish the fireball (332).

That is, according to the present invention, it is possible to prevent the gas range from being inappropriately ignited by the infant by primarily determining whether the user is present when the first crater is ignited.

In addition, the present invention determines whether the timer operation through the second detection signal determination 310, and determines whether to output the warning message through the third detection signal determination 314 and the first set time determination (316). . That is, the present invention does not output the warning message immediately after the timer operation, but outputs the warning message only after the time required for cooking food has elapsed, thereby preventing the warning message from being output unnecessarily.

In addition, the present invention does not immediately extinguish the fireball after outputting a warning message, but once the firepower is changed to a low level (324), the fireball is extinguished by a last resort. On the other hand, the present invention can be formed in multiple stages of the thermal power change step. That is, the present invention may perform a process of extinguishing a fireball as a last resort after changing the firepower only once and then extinguishing the firepower sequentially. In this case, the determination process for the set time for each thermal power to sequentially change the thermal power is performed.

According to the present invention as described above, when the user is not confirmed by the copper sensor attached to the gas range, the timer may be driven to automatically counter the passage of time, and the driving of the gas range is automatically performed according to the elapse of the timer. Can be controlled.

In addition, the present invention relates to a gas cooker for preventing massive human and physical damage from overcooking and fire of food placed in a crater by preventing a malfunction by an infant in advance due to an infant detection function. Depending on the presence of users within the radius, after a certain period of time when there is no user, automatic low power control and ON / OFF control by the stepping motor can be controlled. To prevent damage and waste of energy.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

1 is an external configuration diagram of an embodiment of a gas range according to the present invention.

Figure 2 is an internal configuration diagram of an embodiment of a gas range according to the present invention.

Figure 3 is a flow diagram of one embodiment of a gas range control method according to the present invention.

DESCRIPTION OF THE RELATED ART [0002]

21: dial switch 22: thermal control lever

41: display 42: speaker

51 to 56: copper sensor 81: housing

82: crater

Claims (8)

A timer for counting the passage of time; An input unit to receive information necessary for setting the timer; An output unit for outputting a warning message about a fire occurrence; A detection unit for generating a detection signal for distinguishing an adult from an infant using a plurality of dynamic detection sensors; Fire power change unit for changing the fire power of fire generated in the crater; In a state where the user is not detected from the sensing unit, when the timer reaches the first set time, the output unit is driven to output the warning message, and when the timer reaches the second set time, the thermal power is changed. A control unit which drives a unit to extinguish the fire; And And a housing in which the respective parts and the crater are mounted. The method of claim 1, The plurality of copper detection sensors of the detection unit, are mounted to the upper end and the lower end of the front of the housing, The control unit determines that only the infant is present when the detection signal is received only from the lower end sensor formed on the lower end of the housing, driving the output unit or driving the fire power changing unit. . The method of claim 1, And the sensing unit is mounted to the upper and lower ends of the left side and the upper and lower ends of the right side of the front of the housing and the upper and lower ends of the center of the front of the housing. A first detection signal determining step of determining, by the controller of the gas range, whether the user is detected by both of the copper sensor mounted on the upper end and the lower end of the gas range when the crater ignition request signal is input; As a result of the first detection signal determination, the user does not ignite the crater when the user is detected only at the lower end copper detection sensor, and when the user is detected at both the upper and lower copper detection sensors as a result of the first detection signal determination, A second detection signal determining step of determining whether a user is detected by the upper and lower end copper sensing sensors to determine whether a timer is operated after ignition; As a result of the determination of the second detection signal, when the user is detected only at the lower copper detecting sensor or when the user is not detected at both the upper and lower copper detecting sensors, the timer is driven and a warning message is output according to the driving time of the timer. Gas range control method comprising the step. The method of claim 4, wherein Outputting the warning message, As a result of the determination of the second detection signal, when the user is detected only at the lower end copper detection sensor or when the user is not detected at both the upper and lower end copper detection sensors, the timer is driven, and the control unit is connected to the upper end of the gas range. A third sensing signal determining step of determining whether a user is detected by all of the copper sensing sensors mounted at the lower end; As a result of the third detection signal determination, if the user is detected in both the upper and lower copper detection sensors, the timer is initialized. As a result of the third detection signal determination, the user is detected only at the lower copper detection sensor or the upper and lower ends. Outputting a warning message when the user is not detected by all of the motion detection sensors; And After outputting the warning message, the controller determines whether the user is detected by both the copper detection sensors mounted on the upper end and the lower end of the gas range. As a result of the determination, the user detects both the upper end and the lower end copper detection sensors. When the timer is initialized, and the determination result, if the user is detected only in the lower end copper detection sensor or the user is not detected in both the upper and lower copper detection sensor, the gas comprising the step of changing the fire power of the fire Range control method. The method of claim 5, Outputting the warning message, And the controller determines whether a first preset time for outputting the warning message has been reached, and outputs the warning message when the first preset time has been reached. The method of claim 5, The step of changing the thermal power, A fourth detection signal determining step of determining, by the controller, whether the user is detected by both of the same detection sensors mounted on the upper end and the lower end of the gas range after the warning message is output; Initializing the timer when a user is detected by both the upper end and the lower end dynamic detection sensors as a result of determining the fourth detection signal; Changing the fire power to a low level when the user detects only the lower end copper detecting sensor or the user does not detect both the upper and lower lower copper detecting sensors as a result of determining the fourth sensing signal; A fifth sensing signal determining step of determining, by the controller, whether a user is detected by both of the same sensing sensors mounted on the upper end and the lower end of the gas range; Initializing the timer when a user is detected by both the upper end and the lower end dynamic detection sensors as a result of the fifth detection signal determination; And And extinguishing the fire when a user is detected only at the lower end copper sensing sensor or the user is not sensed at both the upper and lower end copper sensing sensors. The method of claim 7, wherein The step of changing the thermal power to a low step is performed repeatedly, the gas range control method characterized in that the fire power of the fire is sequentially changed to a low step.

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