KR0133000Y1 - Gas sensor of gas oven range - Google Patents

Abstract

The gas leak detection apparatus of the gas oven according to the present invention includes a control unit 22 having a gas leakage detection unit position switching key in addition to cooking selection and cooking time setting, and a gas leakage detection unit 24 mounted at a designated LPG position. LPG position detection unit 34 for detecting whether the LPG position, LNG position detection unit 36 for detecting whether the gas leak detection unit 24 is located in the LNG position is mounted at the designated LNG position, and the LPG position detection unit And a microcomputer 26 which detects a position of the gas leak detector through an LNG position detector and outputs a control signal according to an operation signal of the operation unit, and receives a control signal output from the microcomputer to turn on / off the motor. And a motor 39 for controlling the driving of the 39 and a motor 39 controlled by the motor driving to generate power for switching the position of the gas leakage detecting unit. In addition, according to the type of gas (LNG / LPG) to be used, the position of the gas leakage detecting unit 24 for detecting gas leakage may be automatically switched by manipulating the operation unit 22. .

Description

Gas leak detection device of gas oven

The present invention relates to a gas oven range, and in particular, to a gas oven range sensing device for detecting whether the gas leaks.

As shown in FIGS. 1 and 2, the conventional gas oven range is a main body of the gas oven range, and the upper part of the gas oven stove main body 1 to cook food in an open space. (3) is formed, and the kneading part (3) is made of a mechanism cock (8) for controlling the gas applied to the first burner (4), and the gas introduced through the mechanism cock (8) is ignited The first burner 4 and the igniter which is not shown in figure which generate a flame in the said 1st burner are included.

In addition, a grill portion 5 is formed below the cooker portion 3 so as to cook fish on the grill pan, and the grill portion 5 controls the gas flowing into the second burner 15. (8), a second burner 15 for igniting the introduced gas, an igniter for generating sparks in the second burner, a pilot burner 14 for ensuring ignition of the second burner 15, And a governor 6 for controlling the pressure of the gas.

In addition, an oven unit 7 is provided below the grill unit 5 to cook food in a closed space, and the oven unit 7 is controlled by the operation unit 22 to control the third burner 16. ), The solenoid valve 10 which intercepts the gas which flows in, and the governor 6, the 3rd burner 16, the igniter which generate | occur | produces a flame in the said 3rd burner 16, and the presence / absence of a flame It includes a frame rod 17 for sensing.

In addition, a gas supply pipe 9 for supplying gas into the gas oven body 1, and gas flowing through the gas supply pipe 9 may be provided in the furnace part 3, the grill part 5, and the oven part 7. The primary gas valve 11 which intermittently flows into the () is provided.

In addition, the control block diagram of the gas oven is configured as described above, as shown in Figure 2 is a gas leak detection unit 24 that can detect the leakage of gas is installed on the rear of the gas oven, According to the type of gas, the crisis is classified. When using LPG, the gas is mounted on the lower part inside the rear of the gas oven, and when the LNG is used, it is mounted on the inner upper part of the rear of the gas oven.

It is easy to detect at the lower part of the gas oven because the LPG has a property of sinking under the weight because it is heavier than air. On the other hand, it is detected at the upper part of the gas oven because it has a property of rising upward because LNG is lighter than air. Easy to do

And, the power supply unit 20 serves to change the AC power source to the DC power source for driving the gas oven, the operation unit 22 serves to select various cooking functions of the gas oven by the user's operation, The display unit 28 receives a control signal from the microcomputer 28 to display an operation state and a gas leak image of the gas oven.

In addition, the primary gas valve driving unit 30 receives the control signal output from the microcomputer 26 to open / close the primary gas valve 11 to serve to control the gas supply into the gas oven range, The alarm sound generating unit 32 receives a control signal from the microcomputer 26 when gas leaks to generate an alarm sound, and the microcomputer 26 controls the entire circuit to perform a function selected by the operation unit 22. In particular, when a gas leak is detected through the gas leak detection unit 24 when gas is leaked in the gas oven, the gas leakage state is displayed by applying a control signal to the display unit 28. In addition, the control signal is applied to the primary gas valve driving unit 30 to block the primary gas valve 11 to stop the gas supply to the gas oven, and the control signal is applied to the alarm sound generating unit 32. Generate an alarm sound.

In the conventional gas oven range configured as described above, when AC power is first applied to the gas oven range, the AC power source 20 converts the AC power into DC power to the circuit requiring the microcomputer 26 and DC power. The DC power is supplied, and the microcomputer 26 determines whether the gas leaks in the gas oven range through the gas leak detection unit 24, and if a gas leaks, outputs a control signal to the display unit 28 to detect the gas leak. , And the control signal is applied to the primary gas valve driving unit 30 to block the primary gas valve 11 to stop the gas supply into the gas oven range, and to output the control signal to the alarm sound generating unit 32. Although a safety accident due to a gas leak can be prevented in advance by applying an alarm sound, a gas leak detection unit 24 for detecting a gas leak is installed according to the type of gas (LNG / LPG) used. To have to change the position, change the mounting location was inconvenient to be dismantled, only the rear portion of the gas oven.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide a gas leak detecting apparatus for a gas oven, which can automatically change the attachment position of the gas leak detecting unit by a simple operation of the operation unit. There is.

In order to achieve the above object, the gas leak detecting apparatus of the gas oven according to the present invention is equipped with an operation unit 22 having a gas leakage detecting unit position switching key in addition to cooking selection and cooking time setting, and is mounted at a designated LPG position. LPG position detection unit 34 for detecting whether the gas leak detection unit 24 is at the LPG position, and LNG position detection unit 36 mounted at a designated LNG position to detect whether the gas leakage detection unit 24 is at the LNG position. ), A micom 26 for detecting the position of the gas leak detection unit through the LPG position detection unit and the LNG position detection unit, and outputting a control signal according to an operation signal of the operation unit, and a control signal output from the micom. A motor driver 38 for controlling the driving of the motor 39 by being applied on / off and generating power to be controlled by the motor driver to switch the position of the gas leak detection unit. Key is characterized by consisting of a motor 39.

1 is a gas piping diagram of a conventional gas oven.

2 is a control block diagram of a conventional gas oven.

3 is a side view showing a gas leak detection apparatus for a gas oven according to the present invention.

Figure 4 is a front view showing a gas leak detection apparatus for a gas oven range according to the present invention.

5 is a control block diagram of a gas leak detection apparatus according to the present invention.

* Explanation of symbols for main parts of the drawings

20: power supply section 22: operation section

24: gas leak detection unit 26: micom

34: LPG position detection unit 36: LNG position detection unit

38: motor drive part 39: motor

41: connecting bar 43: motor shaft

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

3 is a side view showing a gas leak detection apparatus for a gas oven according to the present invention,

4 is a front view showing a gas leak detection apparatus for a gas oven according to the present invention,

5 is a control block diagram of the gas leak detection apparatus according to the present invention, the same reference numerals are assigned to the same parts as in the prior art, and duplicated descriptions are omitted.

In the gas leak detection apparatus of the gas oven according to the present invention, as shown in FIGS. 3 to 5, the operation unit 22 is provided with a gas leakage detection unit position switching key in addition to the cooking selection and the cooking time setting. The LPG position detecting unit 34 is a Hall sensor installed at a position LPG where the gas leakage detecting unit 24 is attached when the gas used is LPG, and the gas leakage detecting unit 24 is positioned at the LPG position. It detects whether there is or not and outputs it to the microcomputer 26. The LNG position detecting unit 36 is a hall sensor installed at a position (LNG position) to which the gas leakage detecting unit 24 is attached when the gas used is LNG. The gas leak detection unit 24 detects whether the gas is in the LNG position and outputs it to the microcomputer 26.

The motor driver 38 is turned on / off according to a control signal output from the microcomputer 26 to control the driving of the motor 39, and the motor 39 is driven by the motor driver 38 to provide gas. It serves to generate power for switching the position of the leak detection unit 24.

In addition, the motor 39 is a step motor that rotates at a predetermined angle and is attached to a central portion of the panel 45 that forms the rear portion of the gas oven range, and a connection bar connecting the gas leakage detecting unit 24 to the motor shaft 43. When 41 is installed and the motor 39 rotates in a predetermined direction, the gas leakage detecting unit 24 floats on the panel 45 and rotates in a constant direction.

The microcomputer 26 detects the position of the gas leak detection unit 24 through the LPG / LNG position detection units 34 and 36 when the LPG is selected by operating the gas leakage detection unit position switching key of the operation unit 22. When the gas leak detection unit 24 is in the LPG position, the control signal is output to the motor driving unit 38 to stop the driving of the motor 39, while the gas leakage detection unit 24 is located at the LNG position. If present, the control signal is output to the motor driver 38 to rotate the motor 39 in a predetermined direction, and when the microcomputer 26 arrives at the LPG position, the microcomputer 26 detects it through the LPG position detector 34 and the motor driver 38. The control signal is outputted to stop the driving of the motor 39.

On the other hand, when the gas leakage detection unit position switching key of the operation unit 22 is operated to select the LNG, the position of the gas leakage detection unit 24 through the LPG / LNG position detection unit 34, 36 to detect the gas If the leak detection unit 24 is in the LNG position, it outputs a control signal to the motor drive unit 38 to stop the driving of the motor 39, while if the gas leakage detection unit 24 is in the LPG position, the motor drive unit Outputs a control signal to the 38 to rotate the motor 39 in a predetermined direction when arriving at the LNG position, the microcomputer 26 detects this through the LNG position detection unit 36, the control signal to the motor drive unit 38 Outputs the motor 39 to stop driving.

In the gas leak detection apparatus of the gas oven according to the embodiment of the present invention configured as described above, first, the user selects the LPG by operating the gas leakage detection unit position switching key of the operation unit 22 while power is applied to the gas oven range. If the microcomputer 26 detects the position of the gas leakage detecting unit 24 through the LPG / LNG position detecting units 34 and 36, and the gas leakage detecting unit 24 is in the LPG position, the microcomputer 26 Outputs a control signal to the motor driver 38 to stop the driving of the motor 39, while control of the microcomputer 26 to the motor driver 38 when the gas leak detector 24 is in the LNG position. When the motor 39 is rotated in a predetermined direction to reach the LPG position by outputting a signal, the microcomputer 26 detects this through the LPG position sensing unit 34 and outputs a control signal to the motor driving unit 38 to output the motor. The driving of 39 is stopped.

On the other hand, when the gas leak detection unit position switching key of the operation unit 22 is operated by the user and LNG is selected, the microcomputer 26 passes through the LPG / LNG position detection units 34 and 36 to detect the gas leak unit 24. When the gas leak detection unit 24 is in the LNG position by detecting the position of the control unit, the control signal is output from the microcomputer 26 to the motor driving unit 38 to stop the driving of the motor 39. When the leak detection unit 24 is in the LPG position, the control signal is output from the microcomputer 26 to the motor driver 38 to rotate the motor 39 in a predetermined direction to reach the LNG position. The sensing unit 36 detects this and outputs a control signal to the motor driving unit 38 to stop the driving of the motor 39.

As described above, the gas leak detection apparatus of the gas oven range according to the present invention may be operated by a user depending on the type of gas (LNG / LPG) used in the position of the gas leak detection unit 24 for detecting gas leakage. There is an excellent effect that it can be switched automatically by operating 22).

Claims (2)

In addition to cooking selection and cooking time setting, an operation unit 22 having a gas leakage detecting unit position switching key, and an LPG position detecting unit 34 mounted at a designated LPG position to detect whether the gas leakage detecting unit 24 is in the LPG position And an LNG position detecting unit 36 mounted at a designated LNG position to detect whether the gas leakage detecting unit 24 is at the LNG position, and the position of the gas leakage detecting unit through the LPG position detecting unit and the LNG position detecting unit. A microcomputer 26 for sensing and outputting a control signal according to an operation signal of the operation unit, a motor driver 38 for controlling the driving of the motor 39 by being turned on / off by receiving a control signal output from the microcomputer; And a motor (39) controlled by the motor driving unit to generate power for switching the position of the gas leak detecting unit. The gas leak detection apparatus according to claim 1, wherein the motor (39) is a step motor rotating at a predetermined angle.