CN201310941Y - Gas appliance - Google Patents

Abstract

A gas appliance includes a power supply device; at least one burner; at least one gas valve to open and close a gas passage of the burner; control means of the same number as the burners, having operation means for giving command signals from the outside; microprocessor for receiving command signal of the operation device and executing the command signal and outputting control signal; and a gas valve control device for receiving the control signal given by the microprocessor and making the gas valve act; ignition induction electrodes with the same number as the burners are arranged beside the burners; at least one ignition induction device for receiving the control signal from the microprocessor to supply high voltage current to the ignition induction electrode, generating spark to ignite the gas mixture to form flame, stopping discharging when receiving the flame signal fed back from the ignition induction electrode, and simultaneously inputting the flame signal to the microprocessor.

Description

gas appliances

technical field

The utility model relates to a gas appliance, in particular to a gas appliance which is easy to operate and can control the heat.

Background technique

Commercially available gas appliances, such as gas stoves and barbecue stoves, generally use piezoelectric automatic ignition devices. The piezoelectric automatic ignition device is to use the piezoelectric phenomenon to generate sparks, and the energy of the sparks is used to ignite the gas. The so-called piezoelectricity is to give pressure or tensile stress to piezoelectric components to generate electricity, and the electricity generated by this method is called piezoelectricity.

The action of the piezoelectric ignition device is to rotate the cock knob first, and the protrusion installed on the same axis as the cock will lift the hammer, and at the same time, the gas will flow out of the nozzle during the slow opening of the cock, and then turn the knob The protruding part of the raised hammer will be disengaged, and the hammer will strike the metal shell sealed with the piezoelectric component due to the restoring force of the spring. The piezoelectric component generates a high voltage, and the high voltage is conducted to the ignition electrode through the conductive wire to generate sparks. At this time, the gas that has flowed out of the nozzle around the electrode is filled with the mixed gas that has reached the ignition range, so that the gas is ignited.

Because the piezoelectric ignition device must be turned by hand to ignite the cock knob, so the gas appliance is not very convenient to operate.

On the other hand, during the use of gas appliances, from the supply of gas to the conversion of gas into heat energy, most of them belong to the control and regulation of gas. Although the above-mentioned cock has the effect of regulating the gas flow, it is difficult to accurately produce the throttling effect because the cock knob is turned by hand. This fact does not have much impact on the stove used for cooking food in principle, but if it is used in the oven, since the most important thing to bake food with fire is the heat (firepower and time), the gas cannot be adjusted correctly. If the flow rate is low, it is difficult to control the firepower, and as a result, the quality of the food will be different every time it is baked.

Contents of the invention

The purpose of the utility model is to solve the above-mentioned problems and shortcomings, and provide an electronically controlled gas appliance, which makes the operation of the gas appliance more convenient and can accurately control the heat.

The utility model is achieved through the following technical solutions:

A gas appliance, characterized in that: comprising

power supply unit;

at least one burner;

at least one gas valve to open and close the gas passage of the burner;

The control device with the same number as the burner has an operating device to give a command signal from the outside; a microprocessor that receives the command signal from the operating device and outputs a control signal after executing it; and a gas valve control device that receives the microprocessor The control signal given by the device makes the gas valve act;

the same number of ignition sensing electrodes as the burner, located beside the burner;

At least one ignition sensing device receives the control signal given by the microprocessor to supply high-voltage current to the ignition sensing electrode, where sparks are generated to ignite the gas mixture to form a flame, and receive the flame fed back by the ignition sensing electrode When the signal is turned off, the discharge is stopped, and the flame signal is input to the microprocessor at the same time.

It also includes auxiliary operating devices with the same number as the burner, and each auxiliary operating device can respectively give the microprocessor command signals; and auxiliary display devices with the same number as the auxiliary operating devices, and the output is provided by the microprocessor show.

The number of the burner and the gas valve is one.

The number of the burner and the gas valve is the same, and there are more than two, and the gas passage of each burner is controlled by a gas valve.

The number of the gas valve is one, the number of the burner is more than two, and the gas passage of the burner is simultaneously controlled by the gas valve.

The number of the ignition sensing devices is the same as the number of the control devices; they are respectively incorporated into the control device to form a part of the control device, and each receives a control signal input by a corresponding microprocessor.

A gas appliance, characterized in that:

power supply unit;

at least two burners;

At least two gas valves, each gas valve independently opens and closes the gas passage of a burner;

The control device has an operating device for giving command signals from the outside; the microprocessor receives the command signals of the operating device and outputs control signals after executing them; and the gas valve control circuit receives the control signals given by the microprocessor, actuate the gas valve;

The number of sub-control devices is the same as that of the burner. Each sub-control device has a sub-control device that gives a command signal from the outside; a sub-microprocessor receives the command signal from the sub-operation device and inputs it to the processor; and a gas valve control device, which receives the control signal given by the secondary microprocessor to make the gas valve act;

The same number of ignition sensing electrodes as the burner, each electrode is located next to a burner;

At least one ignition sensing device receives the control signal given by the microprocessor to supply high-voltage current to the ignition sensing electrode, where sparks are generated to ignite the gas mixture to form a flame, and receive the flame fed back by the ignition sensing electrode When the signal is turned off, the discharge is stopped, and the flame signal is input to the microprocessor at the same time.

The number of the gas valve is one more than the number of the secondary control device, and the extra gas valve is controlled by the gas valve control device of the control device.

Also includes a side stove, which has:

burner;

a gas valve to open and close the gas passage of the burner;

The sub-control device has a sub-operating device to give command signals from the outside; the sub-microprocessor receives the command signals from the sub-operation part and outputs control signals after executing them; and the gas valve control device receives the command signals from the sub-microprocessor. The given control signal makes the gas valve act;

The ignition sensing electrode is located next to the burner;

The ignition sensing device receives the control signal given by the secondary microprocessor to supply high-voltage current to the ignition sensing electrode, where sparks are generated to ignite the gas mixture to form a flame, and receive the flame signal fed back by the ignition sensing electrode When the discharge is stopped, the flame signal is input to the secondary microprocessor at the same time.

Also includes a temperature detector connected to the microprocessor.

It also includes a lighting device, which has a light source controlled by the microprocessor to turn on and off.

It also includes a gas quantity indicating device with a pressure switch connected to the microprocessor.

The control device also includes a remote control device, which provides a transmitter for transmitting data codes, and a receiver decodes the data codes after receiving them, and transmits them to the microprocessor.

The operating device includes a power switch, a lighting switch, a fire key, a temperature setting key, a timing key, an upward adjustment key and a downward adjustment key; the control device includes a display device, and the microprocessor provides an output display.

The operating device is a touch device, which has a touch IC and a touch panel capable of receiving contact input signals.

The operating device is a remote control device with a transmitter for transmitting data codes, and a receiver decodes the data codes after receiving them and sends them to the microprocessor.

The secondary operation device includes a power switch and a fire key; the secondary control device has a secondary display device, and the secondary microprocessor provides output display.

The auxiliary operating device is a touch device, which has a touch IC and a touch panel capable of receiving contact input signals.

The gas valve includes:

The casing has a gas flow channel and at least one assembly port, the flow channel has an inflow port and at least one outflow port, the assembly port communicates with the flow channel, and is between the inflow port and the outflow port;

At least one solenoid valve is installed on the assembly port to open and close the flow path.

The assembly port includes a first assembly port and a second assembly port; the solenoid valve includes a first solenoid valve installed in the first assembly port, and a second solenoid valve installed in the second assembly port to The flow paths are opened and closed individually.

The inner diameter of the air outlet of the first electromagnetic valve is smaller or larger than the inner diameter of the air outlet of the second electromagnetic valve.

The air outlet of the first electromagnetic valve is equipped with a first bushing, and the air outlet of the second electromagnetic valve is installed with a second bushing, and the hole inner diameter of the first bush is smaller or larger than the hole inner diameter of the second bush.

The ignition induction electrode is composed of an ignition electrode and an induction electrode.

The operating device is a touch device, which has a touch IC and a touch panel capable of receiving contact input signals; the control device includes a display device, and the display device and the touch device form a touch screen.

The secondary operating device is a touch device, which has a touch IC and a touch panel capable of receiving contact input signals; the secondary control device includes a secondary display device, and the secondary display device and the touch device form a touch screen.

The number of the ignition sensing device is equal to the sum of the number of the control device and the sub-control device; they are respectively incorporated into the control device and the sub-control device, constitute a part of the control device and the sub-control device, and receive corresponding microprocessors and sub-microprocessors respectively. The control signal input by the device.

The number of the ignition sensing devices is the same as the number of the sub-control devices; they are respectively incorporated into the sub-control devices to form a part of the sub-control devices, and each receives a control signal input by a corresponding sub-microprocessor.

The ignition induction device of the side stove is incorporated into its sub-control device, forming a part of the sub-control device.

The beneficial effects of the utility model are:

1. The gas appliance is easy to operate because it uses electronic control, and can accurately control the heat;

2. The gas appliance is provided with a display device, which can display the status of use, including temperature, firepower, timing shutdown time, insufficient gas volume, etc.;

3. The gas appliance is equipped with a remote control device, which can remotely turn on/off, adjust firepower, set temperature and turn off at regular intervals.

Description of drawings

Fig. 1 is a structural block diagram of a first embodiment of a gas appliance;

Fig. 1A is the circuit diagram of the first embodiment;

Fig. 1 B is the block diagram of embodiment structure similar to Fig. 1;

Fig. 2 is a structural block diagram of the second embodiment of the gas appliance;

Fig. 3 is a structural block diagram of a third embodiment of a gas appliance;

Fig. 4 is a structural block diagram of a fourth embodiment of a gas appliance;

Fig. 5 is a structural block diagram of a fifth embodiment of a gas appliance;

Fig. 6 is a structural block diagram of the sixth embodiment of the gas appliance;

Fig. 7 is a structural block diagram of a seventh embodiment of a gas appliance;

Fig. 7A is a structural block diagram of an embodiment similar to Fig. 7;

Fig. 8 is a structural block diagram of an eighth embodiment of a gas appliance;

Fig. 9 is a structural block diagram of a ninth embodiment of a gas appliance;

Fig. 9A is a structural block diagram of an embodiment similar to Fig. 9;

Fig. 10 is the external view of the gas valve;

Fig. 11 is a sectional view of the gas valve shown in Fig. 10 in the axial direction (gas flow direction) in the closed position;

Fig. 12 is an axial sectional view of the gas valve shown in Fig. 10 actuated to an open position;

Fig. 13 is an appearance diagram of a gas valve similar to Fig. 10;

Fig. 14 is an axial sectional view of the gas valve shown in Fig. 13 in the closed position.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

In FIG. 1 , the structural block of the gas appliance 10 is shown, and FIG. 1A is its circuit, which can be used to illustrate the technical content of the present invention. The gas appliance 10 includes:

The power supply device 12 supplies the voltage required for the operation of the gas appliance 10 .

The burner 14 is a device for fully mixing the gas and air to promote the combustion reaction.

The gas valve 16 is used to open and close the passage of the gas flowing to the burner 14 (hereinafter referred to as the gas passage).

The operating device 18 is one of the main input devices of the gas appliance 10 for giving command signals from the outside. It has a power switch PB1, which is used to turn on/off; firepower button PB2, used to enter the heating mode; constant temperature button PB3, used to set the constant temperature mode; timing button PB4, used to select the timing shutdown mode; up adjustment button PB5, down adjustment button PB6, for upward and downward adjustment of firepower, temperature, and time; lighting switch PB7, for controlling the light source 44 to be described later.

The microprocessor 20 is a device that receives instructions from the operating device 18 and executes them.

The remote control device 22 is an input device of the gas appliance 10 together with the operating device 18 . The above actions such as power on/off, fire power adjustment, temperature setting, timed power off and light source 44 turning on and off can be operated through radio frequency (RF) or infrared (IR) remote control device 22 . The remote control device 22 has a transmitter 22 a for transmitting data codes, and a receiver 22 b decodes the data codes after receiving them, and then transmits them to the microprocessor 20 .

It should be noted that, in the embodiment shown in FIG. 1 , the gas appliance 10 can be operated by a wire-controlled operating device 18 and a wireless-controlled remote control device 22 . Certainly, the gas appliance 10 may also provide only one of the operation modes as required. In addition, the above-mentioned operating device 18 can be replaced by a touch device (not shown in the figure), which has a touch IC and a touch panel that can receive input signals from contacts (such as fingers or plastic pen tips, etc.) to replace mechanical style button panel. Therefore, in the present invention, the definition of an operating device also includes a remote control device and a touch device, and is not limited to the operating device 18 shown in the drawings.

The gas valve control device 24 receives the control signal input by the microprocessor 20 to make the gas valve 16 open and close to open and close the gas passage.

The display device 26 is provided by the microprocessor 20 for output display, and is used to display information such as fire power, temperature, timer shutdown time, and gas storage. The display device 26 may adopt a liquid crystal display (LCD) or an LED display. When the display device 26 adopts a liquid crystal display, it can be modularized with the above-mentioned touch device to form a touch screen (Touch Panel).

The above-mentioned operating device 18 , microprocessor 20 , remote control device 22 , gas valve control device 24 and display device 26 constitute a control device 28 of the gas appliance 10 .

The ignition induction electrode 30 is arranged beside the burner 14 to generate sparks and perform flame induction functions. It should be noted that ignition electrodes and induction electrodes can also be used to perform ignition and flame induction work respectively.

The ignition sensing device 32 is about to add the control signal to the gas valve control device 24 and the ignition sensing device 32 when the microprocessor 20 receives the command signal for the On operation of the power switch PB1. The former opens the gas valve 16 to release gas to the burner 14 , and the latter supplies high voltage current to the ignition sensing electrode 30 . These high-voltage shock currents generate sparks on the ignition sensing electrode 30, and the spark ignites the mixture of gas and air to form a flame, and then the ignition sensing electrode 30 feeds back the detected flame signal to the ignition sensing device 32 to stop the discharge ( ignition), and the flame signal is input to the microprocessor 20 via the ignition sensing device 32. If the ignition fails, the microprocessor 20 immediately orders the ignition induction device 32 to continue discharging for several seconds. When still not sensing flame signal, just cut off the circuit that is connected to gas valve control device 24, make gas valve 16 close, stop releasing combustion gas, and keep standby state. The ignition sensing device 32 is commonly used in gas appliances such as water heaters, and its technical content can be referred to Taiwan's new patent No. 143956, which will not be described here.

The temperature detector 34 is installed at the position where the temperature of the gas appliance 10 is to be measured, and the detection signal is added to the microprocessor 20, so that the gas valve control device 24 produces a predetermined action, and then drives the gas valve 16 to adjust the gas flow, To achieve the purpose of temperature control. The temperature sensor 34 can use a thermistor or other suitable temperature sensing components.

The gas quantity indicating device 36 includes a pressure switch 42 and is connected with the microprocessor 20 . When the gas pressure drops, the pressure switch 42 will be turned on to make the microprocessor 20 output a control signal, so that the ideogram or text that the gas is about to be used up is displayed on the display device 26 .

The lighting device 38 includes a light source 44 to provide the lighting required for the gas appliance 10 to be used at night. The lighting device 38 is controlled by the microprocessor 20 to turn on and off the light source 44 according to the signal given by the lighting switch PB7. The light source 44 can be a lamp tube or a light bulb.

The above-mentioned gas valve 16, as shown in FIG. 10 and FIG. 11, is composed of a housing 50, a first solenoid valve 70a, and a second solenoid valve 70b. Wherein, a gas flow passage 52 is formed inside the casing 50, and the first assembly port 54 and the second assembly port 56 communicate with the flow passage 52 respectively, and the flow passage 52 has an inflow port 58 and an outflow port 60 on the same central axis 66. , and the inflow port 58 and the outflow port 60 are respectively formed with threaded or other types of inflow side joints 62 and outflow side joints 64 for connecting gas pipes (not shown). The former is connected to the gas source through the gas pipe, and the latter is connected to the burner 14 through the gas pipe. The first assembly port 54 and the second assembly port 56 are symmetrically arranged above and below the housing 50 , and are located between the inlet 58 and the outlet 60 . The first solenoid valve 70a is installed in the first mounting port 54, and the second solenoid valve 70b is mounted in the second mounting port 56 to open and close the flow path 52, respectively.

In order to make the first solenoid valve 70a and the second solenoid valve 70b with the same structure have different throttling effects on the gas flow in the flow path 52, the inner diameter of the air outlet hole 72a of the first solenoid valve 70a can be smaller or larger than that of the second solenoid valve. The inner diameter of the outlet hole 72b of the valve 70b. Or, as shown in Figure 11, the first bushing 74a is installed in the outlet hole 72a of the first solenoid valve 70a, and the second bushing 74b is installed in the outlet hole 72b of the second solenoid valve 70b, and the hole of the second bushing 74b The inner diameter of 76b is larger than the inner diameter of the bore 76a of the first bushing 74a. In this way, three kinds of throttling control can be performed by utilizing the individual operation and the simultaneous operation of the first electromagnetic valve 70a and the second electromagnetic valve 70b. To be clear, when the valve body 78a of the first electromagnetic valve 70a is opened, only a small amount of gas is allowed to flow into the hole 82a through the inlet hole 80a, then flow out from the hole 76a of the first bushing 74a, and then flow out from the outlet of the flow path 52 60 flow out to supply the needs of burning. When the valve body 78b of the second solenoid valve 70b is opened, a medium amount of gas is allowed to flow into the hole 82b through the inlet hole 80b, then flow out from the hole 76b of the second bushing 74b, and then flow out from the outlet 60 of the flow path 52 to supply combustion. use. When the valve bodies 78a and 78b of the first electromagnetic valve 70a and the second electromagnetic valve 70b are actuated to open valve positions simultaneously (as shown in FIG. 82b, then flows out from the holes 76a and 76b, and then flows out from the outlet 60 of the flow path 52 to supply the combustion needs, so that the gas appliance 10 can adjust the firepower by pressing the button on the operating device 18. According to this embodiment, there are three sections of firepower available for adjustment. Of course, with the increase of the number of solenoid valves, the number of fire adjustment stages will also increase relatively. Also, the flow path 52 is not limited to one outflow port 60 , and may have two or more outflow ports 60 . In addition, the inner diameter of the hole 76b of the second bushing 74b can also be made smaller than the inner diameter of the hole 76a of the first bushing 74a.

Fig. 13 and Fig. 14 have shown a kind of appearance and internal configuration of gas valve 16c similar to Fig. 10 and Fig. 11. The main difference between this embodiment and the above-mentioned gas valve 16 is that the types of the inflow-side joint 62a and the outflow-side joint 64a at the two ends of the casing 50a are different, and the inflow port 58a and the outflow port 60a are not arranged on the same central axis but at intervals of 90 degrees, and the rest of the structure is the same . Therefore, the parts that are the same as those in Fig. 10 and Fig. 11 are marked with the same symbols, and the previous description of the above-mentioned gas valve 16 is also applicable to this embodiment, and will not be repeated here.

The utility model is not limited to the above-mentioned embodiments, and it can be in other different types. For example, the combination of the burner 14 and the ignition sensing electrode 30 in FIG. 1 can be replicated to form a gas appliance 10a with multiple burners 14 (see FIG. 2 ). Alternatively, the combination of the burner 14, the gas valve 16 and the ignition sensing electrode 30 in FIG. 1 can be replicated to form a gas appliance 10b (see FIG. 3 ) with multiple burners 14 to increase the heat generated accordingly. In the gas appliance 10a shown in Figure 2, the gas passages of multiple burners 14 are controlled by the same gas valve 16, but in the gas appliance 10b shown in Figure 3, the gas passages of each burner 14 are controlled by A gas valve 16 controls.

Moreover, the gas appliance 10c shown in FIG. 4 is changed from the gas appliance 10b in FIG. 3, and each burner 14 has its own auxiliary operation device 18c and auxiliary display device 26c. In this embodiment, the auxiliary operating device 18c only has a power switch and a fire key for controlling the corresponding burner 14, and the auxiliary display device 26c can only display the size of the fire power; as for timing, temperature, lighting and other high-level functions still need to pass The control device 28 controls it.

In addition, a side stove can be further added to the gas appliance 10b in FIG. 3 for cooking food. FIG. 5 shows a gas appliance 10d having a side burner 40 . The side stove 40 is composed of a burner 14a, a gas valve 16a, a secondary control device 28a, an ignition sensing electrode 30a and an ignition sensing device 32a. Wherein, the secondary control device 28a includes the secondary operating device 18a, which has a power switch and a fire key; the secondary microprocessor 20a receives the command signal of the secondary operating device 18a, and outputs a control signal after being executed; the gas valve control device 24a receives the command signal of the secondary operating device The control signal given by the microprocessor 20a makes the gas valve 16a act; and the sub-display device 26a, the fire output display is provided by the sub-microprocessor 20a.

FIG. 6 shows a gas appliance 10e simplified from FIG. 1 . In this embodiment, the remote control device 22, the temperature detector 34, the gas quantity indicating device 36 and the lighting device 38 in Fig. 1 are omitted, and the constant temperature and timing functions in the control device 20 are deleted to form a fire-power Yangchun-type gas appliance 10e with basic functions such as adjustment and firepower display, to meet different needs.

It should be noted that in the embodiments shown in FIGS. 1 to 6 , the ignition sensing device 32 and the control device 28 are independent modules. But in fact, the ignition sensing device 32 can also be incorporated into the control device 28c as shown in FIG. 1B to form a part of the control device 28c, forming a control module including the ignition sensing device.

In addition, the combination of the burner 14, the gas valve 16, the control device 28 and the ignition induction electrode 30 in FIG. increase the heat generated.

FIG. 7A shows a gas appliance 10F similar to that of FIG. 7 . In this embodiment, each control device 28d includes an ignition sensing device 32d, constituting a control module with an ignition sensing device.

FIG. 8 is a structural block of another gas appliance 10g of the present invention. In addition to having all the technical features of the gas appliance 10 shown in FIG. A side fire 40 identical to that shown in FIG. 5 . Wherein, the secondary control device 28b includes a secondary operating device 18b, which has a power switch and a fire key; a secondary microprocessor 20b, receives the command signal of the secondary operating device 18b, and outputs a control signal after being executed; a gas valve control device 24b , receiving the control signal given by the sub-microprocessor 20b to make the gas valve 16b act; and a sub-display device 26b, which provides fire output display by the sub-microprocessor 20b.

Likewise, the ignition sensing device 32 of the gas appliance 10g shown in FIG. The control signal input by the processor 20b.

Fig. 9 shows another different type of gas appliance 10h of the present invention. The difference between this embodiment and the gas appliance 10g shown in FIG. 8 is that a group of burners 14 and gas valves 16 directly controlled by the control device 28 are omitted. The rest of the structure is the same as that of the gas appliance 10g shown in FIG. illustrate.

FIG. 9A shows a gas appliance 10H modified from FIG. 9 . In this embodiment, the ignition sensing device 32 of the gas appliance 10h is no longer needed, but each sub-control device 28e has an ignition sensing device 32e to receive the control signals input by its sub-microprocessor 20b respectively. In addition, in FIG. 9A, the ignition sensing device 32a of the side stove 40 is also incorporated into the sub-control device 28f, constituting a part of the sub-control device 28f.

Of course, the above-mentioned embodiments can be modified without departing from the design spirit of the present utility model, so all matters contained in the above description and shown in the accompanying drawings should be regarded as exemplary rather than limiting the scope of the present utility model protected range.

Claims (29)

1, a kind of Gas appliance is characterized in that: comprise

Supply unit;

At least one burner;

At least one gas valve is to open and close the fuel gas path of described burner;

With the same number of control device of this burner, have operating means, give command signal from the outside; Microprocessor receives the command signal of this operating means, and is carried out back output control signal; And the gas valve control device, receive the control signal that this microprocessor is given, make this gas valve action;

With the same number of igniting induction electrode of this burner, be located at the next door of this burner;

At least one induction installation of lighting a fire, receive the control signal that this microprocessor is given, to supply high-tension current to this igniting induction electrode, produce the spark initiation fuel gas mixture at this and form flame, and when receiving the flare up fire of this igniting induction electrode back coupling, stop discharge, simultaneously this flare up fire is imported this microprocessor.

2, Gas appliance as claimed in claim 1 is characterized in that: also include and the same number of secondary operating means of this burner, each secondary operating means can distinctly give this microprocessor instructs signal; And and the same number of secondary display unit of this pair operating means, provide output to show by this microprocessor.

3, Gas appliance as claimed in claim 1 is characterized in that: the number of this burner and this gas valve is one.

4, Gas appliance as claimed in claim 1 is characterized in that: the number of this burner and this gas valve is identical, and is more than two, and each is controlled the fuel gas path of each burner by a gas valve.

5, Gas appliance as claimed in claim 1 is characterized in that: the number of this gas valve is one, and the number of this burner is more than two, and the fuel gas path of this burner is simultaneously by this gas valve control.

6, a kind of Gas appliance is characterized in that:

Supply unit;

At least two burners;

At least two gas valves, each gas valve open and close the fuel gas path of a burner separately;

Control device has operating means, gives command signal from the outside; Microprocessor receives the command signal of this operating means, and is carried out back output control signal; And the gas valve control circuit, receive the control signal that this microprocessor is given, make this gas valve action;

With the same number of sub-control device of this burner, each sub-control device has a secondary operating means, gives command signal from the outside; A secondary microprocessor receives the command signal of this pair operating means, and is carried out this microprocessor of back input; And a gas valve control device, receive the control signal that this pair microprocessor is given, make this gas valve action;

With the same number of igniting induction electrode of this burner, each electrode is located at the next door of a burner;

At least one induction installation of lighting a fire, receive the control signal that this microprocessor is given, to supply high-tension current to this igniting induction electrode, produce the spark initiation fuel gas mixture at this and form flame, and when receiving the flare up fire of this igniting induction electrode back coupling, stop discharge, simultaneously this flare up fire is imported this microprocessor.

7, Gas appliance as claimed in claim 6 is characterized in that: the number of this gas valve is than many one of the number of this sub-control device, and this gas valve that has more is controlled by the gas valve control device of this control device.

8, as claim 1 or 6 described Gas appliances, it is characterized in that: also comprise the limit stove, this limit stove and accessory has:

Burner;

Gas valve is to open and close the fuel gas path of this burner;

The sub-control device has secondary operating means, gives command signal from the outside; Secondary microprocessor receives the command signal of this pair operating means, and is carried out back output control signal; And the gas valve control device, receive the control signal that this pair microprocessor is given, make this gas valve action;

The igniting induction electrode is located at the next door of this burner;

The igniting induction installation, receive the control signal that this pair microprocessor is given, to supply high-tension current to this igniting induction electrode, produce the spark initiation fuel gas mixture at this and form flame, and when receiving the flare up fire of this igniting induction electrode back coupling, stop discharge, simultaneously this flare up fire is imported this pair microprocessor.

9, as claim 1 or 6 described Gas appliances, it is characterized in that: comprise that also the temperature detecting device connects this microprocessor.

10, as claim 1 or 6 described Gas appliances, it is characterized in that: also comprise lighting device, have light source and be subjected to this microprocessor control and light on and off.

11, as claim 1 or 6 described Gas appliances, it is characterized in that: also comprise the gas quantity indicating device, have pressure switch and connect this microprocessor.

12, as claim 1 or 6 described Gas appliances, it is characterized in that: described control device also comprises remote control, provides transmitter for the emission data code, reaches and decodes after receiver receives this data code, and be sent to described microprocessor.

13, as claim 1 or 6 described Gas appliances, it is characterized in that: this operating means includes power switch, light switch, firepower key, constant temperature key, timing key, adjusts upward key and adjusts key downwards; This control device comprises display unit, provides output to show by this microprocessor.

14, as claim 1 or 6 described Gas appliances, it is characterized in that: this operating means is a contactor control device, has touch-control IC, and can receive the contact panel of contact input signal.

15, as claim 1 or 6 described Gas appliances, it is characterized in that: this operating means is a remote control, has transmitter for the emission data code, reaches and decodes after receiver receives this data code, and be sent to this microprocessor.

16, Gas appliance as claimed in claim 6 is characterized in that: this pair operating means includes power switch and firepower key; This sub-control device has secondary display unit, provides output to show by this pair microprocessor.

17, as claim 2 or 6 described Gas appliances, it is characterized in that: this pair operating means is a contactor control device, has touch-control IC, can receive the contact panel of contact input signal.

18, as claim 1 or 6 described Gas appliances, it is characterized in that: this gas valve comprises:

Housing has gas-flow path and at least one installation opening, and this circulation flow path has an inflow entrance and at least one flow export, and this installation opening is communicated with this circulation flow path, and between this inflow entrance and flow export;

At least one magnetic valve is installed on this installation opening, to open and close this circulation flow path.

19, Gas appliance as claimed in claim 18 is characterized in that: this installation opening comprises one first installation opening and one second installation opening; This magnetic valve comprises one first magnetic valve, is installed on this first installation opening, and one second magnetic valve, is installed on this second installation opening, with this circulation flow path of switching out of the ordinary.

20, Gas appliance as claimed in claim 19 is characterized in that: the venthole internal diameter of this first magnetic valve less than or greater than the venthole internal diameter of second magnetic valve.

21, Gas appliance as claimed in claim 19 is characterized in that: the venthole of this first magnetic valve is installed first lining, and the venthole of second magnetic valve is installed second lining, the hole internal diameter of this first lining less than or greater than the hole internal diameter of second lining.

22, as claim 1 or 6 described Gas appliances, it is characterized in that: this igniting induction electrode is made up of ignitor and induction electrode.

23, as claim 1 or 6 described Gas appliances, it is characterized in that: this operating means is a contactor control device, has touch-control IC, and can receive the contact panel of contact input signal; This control device comprises display unit, and this display unit and this contactor control device are formed touch control screen.

24, Gas appliance as claimed in claim 6 is characterized in that: this pair operating means is a contactor control device, has touch-control IC, and can receive the contact panel of contact input signal; This sub-control device comprises secondary display unit, and this pair display unit and this contactor control device are formed touch control screen.

25, Gas appliance as claimed in claim 2 is characterized in that: this pair operating means is a contactor control device, has touch-control IC, and can receive the contact panel of contact input signal, and this contactor control device and this pair display unit are formed touch control screen.

26, Gas appliance as claimed in claim 1 is characterized in that: the number of this igniting induction installation is identical with the number of this control device; Incorporate into respectively in this control device, constitute the part of this control device, receive the control signal of corresponding microprocessor input separately.

27, Gas appliance as claimed in claim 6 is characterized in that: the number of this igniting induction installation equals the number summation of this control device and sub-control device; Incorporate into respectively in control device and the sub-control device, constitute the part of this control device and sub-control device, receive the control signal of corresponding microprocessor and secondary microprocessor input separately.

28, Gas appliance as claimed in claim 6 is characterized in that: the number of this igniting induction installation is identical with the number of this sub-control device; Incorporate into respectively in the sub-control device, constitute the part of this sub-control device, receive the control signal of corresponding secondary microprocessor input separately.

29, Gas appliance as claimed in claim 8 is characterized in that: the igniting induction installation of this limit stove is incorporated in its sub-control device, constitutes the part of this sub-control device.

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