KR100619168B1 - A lighting control method of gas ovenrange - Google Patents

Abstract

The present invention relates to an ignition control method for a gas oven range, and more particularly, to an ignition control method for a gas oven range for differently controlling the opening time of a gas valve according to an applied voltage state. The present invention focuses on the fact that the ignition device reaches the ignition temperature region differently according to the applied voltage state, so that the gas valve can be opened while the ignition apparatus reaches the ignition temperature region. To this end, the opening time of the gas valve is set in advance according to the voltage size, and the opening time of the gas valve is controlled according to the voltage application state. In addition, the present invention displays an error of the combustion fan through the display means when the rotation speed of the combustion fan does not reach the limit rotation speed in the low voltage state. As a result, the present invention can safely perform the ignition process, can prevent poor ignition and explosion ignition, there is an effect that the reliability is improved.

Gas oven range, hidden burner, gas valve, ignition temperature range, voltage status

Description

Lighting control method of gas oven range

1 is a graph showing an ignition temperature range according to an applied voltage of a gas oven range.

Figure 2a is a burner mat of the gas oven range according to the present invention.

Figure 2b is a schematic block diagram showing the gas supply structure of the gas oven range according to the present invention.

3 is a control configuration of the gas oven range according to the present invention.

Figure 4 is an operation control flow chart for controlling the ignition operation by the number of revolutions of the combustion fan according to the voltage state of the gas oven range according to the present invention.

             Explanation of symbols on the main parts of the drawings

100: ceramic glass 110: burner

120: gas valve 130: combustion fan

140: gas supply pipe 150: ignition device

160: burner mat

The present invention relates to a gas oven range, and more particularly, to an ignition control method of a gas oven range that detects whether or not a low voltage state is ignited.

As the kitchen culture and eating habits become westernized, the gas oven range is integrated with ovens and gas ranges for cooking various western foods such as pizza, bread and barbecue in many homes.

In general, a gas oven range is cooked in an oven when a user cooks a barbecue or bread, and is cooked using a grill when grilled, such as grilled fish, and cooks food in a container and heats it. When you do the cooking using the burner of the top burner exposed at the top.

In particular, a hidden burner type gas oven is provided with a heating coil for heating using electricity instead of an open burner of the top burner, and the upper part of the gas burner is covered with ceramic glass, using radiant heat generated when the heating coil is heated. It consists of heating food or containers placed on the upper surface of ceramic glass, but this hidden burner type gas oven range is easy to install in general households because it is not economically economical because it uses a lot of electricity to heat the heating coil. Do not use. Therefore, instead of electric energy, a hidden burner type gas oven range using radiant energy by gas fuel has been proposed. The gas oven range described below is a hidden burner type gas oven range using radiant energy by gas fuel.

1 is a graph illustrating a process of reaching an ignition temperature range according to an applied voltage of a gas oven range.

The temperature region where ignition occurs is varied in accordance with the voltage applied to the gas oven range as shown in the figure. That is, when the applied power of the gas oven range is 220V, it has a change in the ignition temperature as shown in the graph until the ignition after ignition of the gas oven range.

After 220V power is applied and the ignition of the gas oven is started, the combustion fan is forcibly driven until reaching t1 in order to discharge residual gas in the burner to the outside (pre-purge section, for example, about 10 seconds to 12 second). When t1 passes, the ignition device reaches the ignition temperature range. When the time t2 elapses, the gas valve is opened (Valve on) and gas is supplied to ignite. For example, when the applied power source is 220V, the gas valve is opened after about 12 seconds have elapsed in the initial state. As described above, at the normal voltage (voltage guarantee range), the heat generation temperature of the ignition reaches or exceeds the ignition temperature before the valve on time, and the ignition is safely performed.

However, the lower the voltage value applied to the gas oven range, the longer it takes to reach the ignition temperature range, which may result in explosion risk or ignition failure.

As shown in FIG. 1 after the start of ignition of the gas oven range of B _volt (B _volt <220V), the ignition device does not reach the ignition temperature range even when t1 has elapsed in the B voltage state. And even after t2 hours of opening the gas valve, the ignition device does not reach the ignition temperature range yet. Only after elapse of t3 does the ignition device reach the ignition temperature range. At this time, since the gas valve is opened at t2 and the gas is supplied in advance (the gas is continuously supplied in the t2 to t3 section), the explosion is ignited or the gas is exploded. In an embodiment, when the applied power source is 200V, the gas valve is opened after about 14 seconds have elapsed in the initial state.

On the other hand, after the start of ignition of the gas oven range of A _volt (A _volt <B _volt <220V), as shown in the figure, the ignition device is placed in the ignition temperature range even if t1, t2, t3, t4 elapses in the A voltage state. Do not reach

As a result, the gas valve is opened to reach t2, and the ignition is not performed even when gas is continuously supplied. In addition, since the gas valve was kept open after t2, only a gas leak occurred without ignition. In the embodiment of the present invention, when the applied power is 200V or less, the gas valve is opened after about 16 seconds have elapsed in the initial state.

Therefore, the conventional ignition process of the gas oven range has the following problems.

 Conventionally, the elapsed time for the ignition device to reach the ignition temperature range is delayed according to the state of the voltage applied to the gas oven range. However, in the related art, the opening operation of the gas valve for supplying gas is always performed at a constant time irrespective of the elapsed time when the ignition device reaches the ignition temperature range.

Accordingly, an object of the present invention is to provide an ignition control method of a gas oven range which controls a driving time of a valve differently according to a state of an applied voltage.

The ignition control method of the gas oven range according to the present invention for achieving the above object comprises the steps of setting in advance the opening time of the gas valve according to the forced driving time and the limit rotational speed of the combustion fan, and the input power size; An ignition button input step of inputting an ignition button; A gas valve checking step of counting an opening time for opening the gas valve when power is applied to the ignition heater by the input of the ignition button; When the opening time of the gas valve according to the input power size elapses, the gas valve is opened to include an ignition step in which an ignition process is performed.

And the present invention, after the ignition button input step, the fan forced drive step of forcibly driving for a predetermined time set the combustion fan; A rotational speed comparison judging step of judging whether or not the rotational speed of the combustion fan reaches a set limiting rotational speed; If the limiting speed is not reached even after the rotational speed of the combustion fan is elapsed for a predetermined time, an error display step of displaying a low voltage error state is configured.

Hereinafter, the ignition control method of the gas oven range according to the present invention will be described. In the present invention, the process of reaching the ignition temperature region of the ignition device according to the applied voltage state of the gas oven range, see FIG.

Figure 2a is a burner mat of the gas oven range according to the present invention, Figure 2b is a block diagram schematically showing the gas supply structure of the gas oven range according to the present invention, Figure 3 is a control configuration of the gas oven range according to the present invention It is also.

The present invention is a hidden burner type gas oven range (hereinafter referred to as a gas oven range). As shown in FIG. 2A, an ignition device 150 is configured at one side of the burner mat 160 of the gas oven range. In addition, as shown in FIG. 2B, the present invention radiates the ceramic glass 100 to which the food is placed and the food is placed, and burns the mixed gas of the ceramic glass 100 so as to contact the lower surface of the ceramic glass 100. A burner 110 for generating a wave, a gas valve 120 for supplying gas so that the burner 110 is ignited, and a combustion fan 130 for generating air therein are configured. In an embodiment of the invention, the gas valve 120 is a linear gas valve.

And the present invention as shown in Figure 3 to determine the error of the temperature detection unit 170 for detecting the surface temperature of the ceramic glass 100 and the cooking control and combustion fan 130 of the gas oven range. The controller 180 is further provided.

Hereinafter, the heating control process of the hidden burner type gas oven range is as follows.

With the input of the ignition button, the combustion fan 130 starts to drive. At this time, the combustion fan 130 is driven to discharge the gas remaining in the burner to the outside. This is called the 'prepurge' section. As an embodiment of the present invention, it takes about 10 to 12 seconds.

On the other hand, when the combustion fan 130 is driven, air is supplied to the mixed gas pipe through the air supply pipe. On the other hand, the gas valve performs the opening operation. Accordingly, the gas is supplied to the mixed gas pipe through the gas supply pipe. The gas supplied to the mixed gas pipe is ejected through the burner mat 160. At that time, ignition and combustion are made by the ignition flame generated by the ignition device.

The burner mat 160 is heated by the combustion of the mixed gas as described above. Radiation heat is generated by the heating of the burner mat 160, and the radiant heat is transferred to the ceramic glass 100. As a result, the cooking vessel placed on the ceramic glass 100 is heated to proceed with cooking.

The combustion gas that is burned while heating the burner mat 160 is discharged toward the back guard part through an exhaust passage formed between the burner housing and the ceramic glass 100 (not shown separately).

4 is an operation control flowchart for controlling the ignition operation at the rotational speed of the combustion fan 130 according to the applied voltage state of the gas oven range according to the present invention.

When the ignition button is input (step 300), the combustion fan 130 is forcibly driven (full on) (step 310). As a result, the remaining gas is discharged to the outside. This is called prepurge and it takes about 10 to 12 seconds.

Then, the rotation speed of the combustion fan 130 is checked, and it is checked whether the rotation speed rpm of the combustion fan 130 reaches the limit rotation speed rpm (step 320). That is, the present invention determines the voltage state applied to the gas oven range through the rotation speed of the combustion fan output within a predetermined time.

If the rotation speed of the combustion fan 130 does not reach the preset limit rotation speed in the 320 step, it is determined whether a predetermined time has elapsed while the rotation speed of the combustion fan 130 is maintained in the state of the 320 step. Determine (step 330).

In this case, the limited rotation speed and the predetermined time in the 320 and 330 steps designate a preset value according to the applied voltage state and make data. Such data is stored in the controller 180 or in separate memory means. And the control process is performed by comparing the measured value with the preset value.

If a predetermined time elapses in step 330, the low voltage error state is displayed (step 340). To this end, the display means 190 is configured, and under the control of the controller 180 to display a low voltage error state to the outside. And does not go into a separate ignition process.

On the other hand, when the rotation speed (rpm) of the combustion fan 130 reaches the limited rotation speed (rpm) in operation 320, the ignition is applied while power is applied to the igniter heater (operation 350). At this time, in order to detect the voltage applied to the gas oven range to determine the applied voltage state, the voltage measuring means 195 and the controller 180 should be configured. The voltage measuring means measures a resistance of an applied voltage and recognizes a voltage value corresponding to the resistance as an embodiment. However, the voltage measuring means is applied to all methods that can measure the applied voltage.

Since the timing of reaching the ignition temperature region of the ignition device 150 varies according to the power-on state (see FIG. 1), the present invention controls the timing of opening the gas valve 120 to vary. To this end, the time at which the ignition device 150 reaches the ignition temperature region and the time at which the gas valve 120 is opened are set in advance according to the input power size.

Then, the opening operation of the gas valve 120 is controlled according to the applied voltage state. Therefore, after operation 350, it is determined whether a predetermined time has elapsed according to the input power size (operation 360).

In operation 360, the gas opening time is determined by determining an appropriate gas opening time according to the input power size, and when the gas opening time is reached, the gas valve 120 is opened. As a result, after the ignition device 150 reaches the ignition temperature region, the gas valve 120 performs an opening operation to perform a normal ignition process (step 370).

Therefore, in the case of the voltage B shown in Fig. 1, when the ignition control method of the present invention is applied, the operation is controlled as follows.

After the voltage B is applied to the gas oven range and ignition is started, the ignition device 150 does not reach the ignition temperature region even after t1 has elapsed. Further, even at the time t2 when the gas valve 120 is opened at 220V, the gas valve 120 is not opened in the B voltage application state. Only after elapse of t3 does the ignition device 150 reach the ignition temperature range. In the present invention, in order to determine whether the ignition device 150 reaches the ignition temperature region, the rotation speed and the limit rotation speed of the combustion fan 130 are stored as data. That is, since the rotation speed and the limit rotation speed of the combustion fan 130 are varied according to the applied power, and the time until the rotation speed of the combustion fan 130 reaches the limit rotation speed is varied, the data is converted into data. It is.

Based on the data, the applied power supply state is identified, and as shown in FIG. 1, the gas valve 120 is controlled to open in the t3 section in the B voltage state. As a result, after the ignition device 130 reaches the ignition temperature region, it is possible to control the gas valve 120 to be opened to safely control the ignition.

As described above, according to the present invention, by controlling the gas supply time differently according to the applied voltage state, it is a basic technical idea to control the gas supply when the ignition device 150 reaches the ignition temperature region.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the 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.

Due to the ignition control method of the gas oven range according to the present invention it can be expected the following effects.

According to the present invention, the gas supply time is controlled differently according to the applied voltage, so that the gas supply is performed while the ignition device reaches the ignition temperature region. As a result, in the ignition control method of the gas oven range to which the present invention is applied, ignition is always performed in the voltage guarantee range (normal state), and it is possible to prevent occurrence of poor ignition and explosion ignition. In addition, the user using the gas oven range to which the present invention is applied can safely perform the ignition process can be expected to the effect of improving the reliability.

In addition, the present invention controls the error state to be displayed if the combustion fan does not reach the limit rotation speed. As a result, the user can check whether the combustion fan is operating normally at the initial stage of use and whether residual gas is discharged to the outside (prepurge), thereby improving safety and reliability of the product.

Claims (2)

A setting step of presetting the forced driving time and the limit rotational speed of the combustion fan and the opening time of the gas valve according to the input power size; An ignition button input step of inputting an ignition button; A gas valve checking step of counting an opening time for opening the gas valve when power is applied to the ignition heater by the input of the ignition button; An ignition control method of a gas oven range including an ignition step of opening an gas valve and performing an ignition process when the opening time of the gas valve according to the input power size has elapsed. The method of claim 1, A fan forced driving step of forcibly driving the combustion fan for a predetermined time set after the ignition button input step; A rotational speed comparison judging step of judging whether or not the rotational speed of the combustion fan reaches a set limiting rotational speed; And an error display step of displaying a low voltage error state if the limiting speed is not reached even after the rotation speed of the combustion fan is elapsed for a predetermined time.

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