CN110966624A - Gas ignition device, gas oven and gas stove - Google Patents

Abstract

The invention relates to a gas ignition device, a gas oven and a gas stove. Wherein, gas ignition includes: the pulse igniter is used for generating electric sparks when electrified; the temperature control valve is arranged between an air outlet of the gas pipeline and an air inlet of the gas fire grate and used for outputting gas to the gas fire grate when the gas fire grate is switched to a working position; the charging power supply is electrically connected with the pulse igniter and is used for continuously supplying power to the pulse igniter until the electric quantity is exhausted; and the charging circuit is electrically connected with the charging power supply and is used for charging the charging power supply when the commercial power is connected. According to the invention, the pulse igniter is continuously supplied with power by the charging power supply until the electric quantity of the charging power supply is exhausted, so that the pulse igniter continuously generates electric sparks during the powered period, the temperature control valve is switched to the working position at any time during the period to output the gas to the gas fire grate, the gas can be ignited by using the electric sparks generated by the pulse igniter, the ignition is realized, the simultaneous control of ignition and the opening of the gas valve are not needed, and the operation is convenient.

Description

Gas ignition device, gas oven and gas stove

Technical Field

The invention relates to the technical field of gas appliances, in particular to a gas ignition device, a gas oven and a gas stove.

Background

With the improvement of environmental protection consciousness, the use of gas is more and more extensive, and the variety of gas appliances is more and more extensive, including gas-cooker, gas water heater, gas oven, etc.

When the gas appliance is generally used, a valve controls a gas pipeline to output gas to a fire grate, and an igniter is used for generating electric sparks at a fire grate outlet to ignite the gas. It is therefore necessary to simultaneously control the valve to open to allow gas to exit the fire and to activate the igniter until the gas is ignited.

The existing common gas appliance switches are divided into two types, one type is a button switch which is pressed to open an igniter, a valve is opened by rotating a button, the button needs to be pressed when the gas is not ignited, but if the gas fails to be ignited for multiple times, a fire grate can output more gas, and potential safety hazards are generated; one is to control the button through an independent press switch and an independent knob respectively, and the button needs to be matched through operating two switches, so that the use is troublesome.

Disclosure of Invention

The technical problem to be solved by the invention is to provide a gas ignition device, which can realize safe and stable ignition, does not need to control ignition and open a gas valve simultaneously, and is more convenient to use.

The technical problem is solved by the following technical scheme:

a gas ignition device comprising:

the pulse igniter is used for generating electric sparks when electrified;

the temperature control valve is arranged between an air outlet of the gas pipeline and an air inlet of the gas fire grate and used for outputting gas to the gas fire grate when the gas fire grate is switched to a working position;

the charging power supply is electrically connected with the pulse igniter and is used for continuously supplying power to the pulse igniter until the electric quantity is exhausted;

and the charging circuit is electrically connected with the charging power supply and is used for charging the charging power supply when the commercial power is connected.

Above-mentioned gas ignition, charge to charging source through charging circuit when inserting the commercial power, it exhausts until charging source electric quantity to last the power supply for pulse igniter through charging source, make pulse igniter continuously produce the electric spark during by the power supply, during the random time switch to the work position with the temperature-sensing valve with the electric spark that gas output can utilize pulse igniter to produce to the gas fire row, realize the ignition, need not simultaneous control ignition and open the gas valve, and convenient for operation, can also avoid the simultaneous operation and the problem that the ignition failure leads to the continuous release of gas, avoid the too much risk of igniting detonation and gas poisoning of gas.

In one embodiment, the temperature control valve is provided with a transmission piece, a knob rod, a knob and a microswitch;

the microswitch is used for connecting the charging circuit and the commercial power in series;

the transmission piece is sleeved on the knob rod and is used for rotating under the driving of the knob rod or moving up and down along the axial direction of the knob rod and moving along the knob rod through the knob rod; when the temperature control valve is switched to a closed position by rotating the knob, the transmission piece rotates to a position at least one part of which is overlapped with the elastic shifting piece of the microswitch, and the transmission piece is used for pressing down the elastic shifting piece when the knob is pressed so as to conduct the microswitch; when the temperature control valve is switched to the working position by rotating the knob, the transmission piece rotates to a position which is not overlapped with the elastic shifting piece of the microswitch. The control of the charging circuit switch and the function of valve control are integrated by using the temperature control valve, and a user can operate the temperature control valve by one key only through the knob, so that the temperature control valve is more convenient to use.

In one embodiment, the charging circuit includes:

and the rectifying circuit is used for connecting the mains supply through the microswitch, and rectifying alternating-current voltage input by the mains supply into direct-current voltage and outputting the direct-current voltage to the charging power supply when the microswitch is closed. The commercial power input is alternating voltage, and the alternating voltage is rectified by the rectifying circuit and then can be charged by the charging power supply.

In one embodiment, the gas ignition device further comprises:

the thermocouple electromagnetic valve is arranged between the gas pipeline and the temperature control valve and used for opening the valve when the thermocouple is electrified or detects that the flame temperature generates thermoelectric electromotive force so as to introduce gas into the temperature control valve;

the charging power supply is also used for supplying power to the thermocouple electromagnetic valve.

The thermocouple electromagnetic valve can be used for keeping the gas circuit open when flame exists, and the gas circuit is cut off once the flame is extinguished, so that gas leakage is avoided.

In one embodiment, the charging power source is a capacitor. The capacitor is used as a charging power supply, so that the time for the pulse igniter to continuously generate electric sparks can be shortened, and the use safety is improved.

In one embodiment, the gas ignition device further comprises a discharge resistor;

the first end of the discharge resistor is electrically connected with the first end of the capacitor, and the second end of the discharge resistor is electrically connected with the power supply input end of the pulse igniter and the input end of the thermocouple electromagnetic valve;

the second end of the capacitor is grounded;

the grounding end of the pulse igniter is grounded;

the output end of the thermocouple electromagnetic valve is grounded.

In one embodiment, the gas ignition device further comprises:

and the input end of the voltage transformation circuit is electrically connected with the second end of the discharge resistor, and the output end of the voltage transformation circuit is electrically connected with the power input end of the pulse igniter and the power input end of the thermocouple electromagnetic valve.

The voltage output by the charging power supply can be adjusted to the working voltage required by the electric load by using the voltage transformation circuit, and the charging power supply can adapt to electric loads of more types and models.

In one embodiment, the gas ignition device further comprises: a low dropout linear regulator;

the input end of the low-dropout linear regulator is electrically connected with the output end of the voltage transformation circuit, and the output end of the low-dropout linear regulator is electrically connected with the power input end of the pulse igniter and the power input end of the thermocouple electromagnetic valve.

The voltage output by the voltage transformation circuit is stabilized by using the low-dropout linear voltage stabilizer, so that the stable work of the pulse igniter and the thermocouple electromagnetic valve is ensured.

The invention also provides a gas oven which comprises the gas ignition device in any one of the embodiments.

Can stabilize safe ignition, avoid many times the ignition failure to release too much gas and get into the oven inside, and then take place the detonation when avoiding lighting a fire once more.

The invention also provides a gas stove which comprises the gas ignition device in any one of the embodiments.

The ignition device can stably and safely ignite and avoid the potential safety hazard of gas poisoning or ignition deflagration caused by releasing excessive gas due to multiple times of ignition failures.

Drawings

FIG. 1 is a block diagram of a gas ignition device according to an embodiment;

FIG. 2 is a schematic top view of an embodiment of the actuator and microswitch in a closed position of the thermostatic valve;

FIG. 3 is a schematic top view of an embodiment of a thermostat in an operational position with a transmission member in positional relationship with a microswitch;

FIG. 4 is a schematic front view of an embodiment showing the positional relationship between the transmission member and the microswitch;

FIG. 5 is a block diagram of a gas ignition device with a rectifier circuit according to an embodiment;

FIG. 6 is a block diagram of a gas igniter with a thermocouple solenoid valve according to an embodiment;

FIG. 7 is a block diagram of a gas igniter with a discharge resistor according to an embodiment;

FIG. 8 is a block diagram of a gas ignition device with a transformer circuit according to an embodiment;

fig. 9 is a block diagram of a gas ignition device with a low dropout linear regulator according to an embodiment.

Reference numerals:

the device comprises a pulse igniter-100, a temperature control valve-200, a gas pipeline-300, a gas fire grate-400, a charging power supply-500, a charging circuit-600, a transmission piece-210, a knob rod-220, a knob-230, a microswitch-240, an elastic shifting piece-241, a rectifying circuit-601, a thermocouple electromagnetic valve-700, a discharge resistor-810, a voltage transformation circuit-820 and a low-voltage-difference linear voltage stabilizer-830.

Detailed Description

To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are shown in the drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element and be integral therewith, or intervening elements may also be present. The terms "mounted," "one end," "the other end," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In one embodiment, as shown in fig. 1, there is provided a gas ignition device comprising:

a pulse igniter 100 for generating an electric spark when energized;

the temperature control valve 200 is arranged between an air outlet of the gas pipeline 300 and an air inlet of the gas fire grate 400, and is used for outputting gas to the gas fire grate 400 when the gas fire grate is switched to a working position;

the charging power supply 500 is electrically connected with the pulse igniter 100 and is used for continuously supplying power to the pulse igniter 100 until the electric quantity is exhausted;

and the charging circuit 600 is electrically connected with the charging power supply 500 and is used for charging the charging power supply 500 when the mains supply is connected.

The pulse igniter 100, which is called pulser for short, is an electronic product that uses the pulse principle to generate continuous instantaneous electric spark to ignite the flame of a gas appliance.

The gas fire grate 400 is also called as a burner and is provided with a plurality of nozzles, gas introduced from the gas inlet of the gas fire grate 400 can be sprayed out of the nozzles, the pulse igniter 100 generates electric sparks at the position close to the nozzles, and the electric sparks ignite the gas to complete ignition.

The thermo-valve 200 is a valve that changes temperature by controlling the flow rate of fluid, and may be a self-operated thermo-valve 200 or an electric thermo-valve 200. The self-operated temperature control valve 200 realizes automatic adjustment by utilizing the principles of liquid thermal expansion and liquid incompressible, the temperature sensing liquid in the temperature sensor can uniformly expand under the action of temperature, and the control action is proportional adjustment. When the flame temperature of the gas fire grate 400 changes, the volume of the temperature-sensing liquid in the temperature sensor expands or contracts along with the change. When the flame temperature of the gas fire grate 400 is higher than a set value, the temperature sensing liquid expands to push the valve core to close the valve downwards, and the flow of gas is reduced. Reducing the flame temperature; when the temperature of the flame of the gas fire grate 400 is lower than a set value, the temperature sensing liquid contracts, the return spring pushes the valve core to open, the flow of the gas is increased, and the temperature of the flame is increased.

The electric temperature control valve 200 has a controller and an actuator, the controller has PI and PID adjusting functions, the control is accurate, the multi-loop control is realized, the functions are various, and the control of fluid flow, pressure, differential pressure, temperature, humidity, enthalpy and air quality can be realized. The actuator is provided with an electric mechanical valve and an electric hydraulic valve, has manual and automatic adjusting functions, is sensitive in adjustment, large in shutoff force and adjustable in flow characteristic (linear equal percentage), and is used for adjusting the flow of the fuel gas according to the indication of the controller.

The charging power supply 500 continuously supplies power to the pulse igniter 100 when the electric quantity exists, so that the pulse igniter 100 continuously generates electric sparks, and the electric sparks are stopped when the pulse igniter 100 is powered off after the electric quantity is exhausted. When the charging circuit 600 is connected to the commercial power, the charging power supply 500 can be charged.

Above-mentioned gas ignition, charge to charging source 500 through charging circuit 600 when inserting the commercial power, continuously supply power until charging source 500 electric quantity exhausts for pulse igniter 100 through charging source 500, make pulse igniter 100 continuously produce the electric spark during by the power supply, during the random moment with temperature-sensing valve 200 switch to the work position with the electric spark that gas output to gas fire row 400 can utilize pulse igniter 100 to produce and light the gas, realize the ignition, need not to control simultaneously to light a fire and open the gas valve, and convenient for operation, can also avoid the problem that the simultaneous operation and the ignition failure lead to the continuous release of gas, avoid the too much risk of lighting a fire, detonation and gas poisoning of gas.

In one embodiment, as shown in fig. 2-4, the thermo-valve 200 is provided with a transmission member 210, a knob 230 rod 220, a knob 230 and a micro switch 240;

the microswitch 240 is used for connecting the charging circuit 600 and the commercial power in series;

the transmission member 210 is sleeved on the knob 230 rod 220, and is driven by the knob 230 rod 220 to rotate or move up and down along the axial direction of the knob 230 rod 220, and moves along with the knob 230 through the knob 230 rod 220; when the knob 230 is rotated to switch the thermostatic valve 200 to the closed position, the transmission member 210 is rotated to a position at least a part of which is overlapped with the elastic pick 241 of the microswitch 240, and the transmission member 210 is used for pressing the elastic pick 241 when the knob 230 is pressed to conduct the microswitch 240; when the rotation knob 230 is rotated to switch the thermo-valve 200 to the working position, the transmission member 210 is rotated to a position not overlapping with the elastic pulling piece 241 of the micro switch 240.

The micro switch 240 controls the on/off of the charging circuit 600 and the mains supply, when the charging power supply 500 needs to be charged, the micro switch 240 is pressed to be closed, and the mains supply and the charging circuit 600 can be conducted to charge the charging power supply 500. Utilize knob 230 control driving medium 210 to push down micro-gap switch 240's elasticity plectrum 241 can press micro-gap switch 240, with micro-gap switch 240's control and valve control's function collection in an organic whole, the user only needs can carry out a key operation through knob 230, and it is more convenient to use.

When the knob 230 is rotated, the rod 220 of the knob 230 drives the transmission member 210 to rotate together, and when the knob 230 is pressed, the rod 220 of the knob 230 drives the transmission member 210 to press down along the axial direction of the rod 220 of the knob 230. The elastic paddle 241 of the micro switch 240 is used to press the button of the micro switch 240. When the knob 230 is in the closed position, the temperature control valve 200 is closed, the gas path is not connected to the gas fire grate 400, when the knob 230 is in the working position, the temperature control valve 200 is opened, and the gas path is connected to the gas fire grate 400. As shown in fig. 2, when the knob 230 is in the closed position, the transmission member 210 is rotated to at least partially overlap with the elastic pulling piece 241 of the micro switch 240, and at this time, if the knob 230 is pressed, the transmission member 210 is pressed down along the axial direction of the rotating shaft, and further the elastic pulling piece 241 of the micro switch 240 is pressed down, so that the elastic broadcasting presses the button of the micro switch 240, and the micro switch 240 is turned on. As shown in fig. 3, when the knob 230 is in the working position, the transmission member 210 is rotated to a position not overlapping with the elastic blade 241 of the microswitch 240, and at this time, if the knob 230 is pressed, the transmission member 210 cannot press the elastic blade 241 of the microswitch 240. The circuit is kept closed when the commercial power is switched on to charge the charging power supply 500, gas can not be output even if the button is pressed for multiple times, the charging power supply 500 has electric quantity after charging and starts to discharge, the pulse igniter 100 generates electric sparks, and before the electric quantity of the charging power supply 500 is exhausted, the rotary knob 230 turns on the temperature control valve 200, and then the gas can be ignited by the electric sparks.

In one embodiment, as shown in fig. 5, the charging circuit 600 includes:

the rectifying circuit 601 is configured to be connected to the mains supply through the micro switch 240, and is configured to rectify an ac voltage input by the mains supply into a dc voltage and output the dc voltage to the charging power supply 500 when the micro switch 240 is closed. The commercial power is supplied with an ac voltage, and the charging power supply 500 can be charged after the ac voltage is rectified by the rectifying circuit 601.

The rectifier circuit 601 may be a half-wave rectifier circuit, a full-wave bridge rectifier circuit, or a voltage doubler rectifier circuit, as needed.

In one embodiment, as shown in fig. 6, the gas ignition device further includes:

a thermocouple solenoid valve 700 disposed between the gas pipeline 300 and the temperature control valve 200, for opening the valve when the gas pipeline is powered on or when the thermocouple detects that the flame temperature generates a thermoelectric motive force, so as to introduce gas into the temperature control valve 200;

the charging power supply 500 is also used to supply power to the thermocouple solenoid valve 700.

When the charging power supply 500 has electric quantity, the electric quantity is supplied to the thermocouple electromagnetic valve 700 at the same time, so that the thermocouple electromagnetic valve 700 attracts the valve, the gas path is conducted, and the fuel gas is introduced into the cavity of the temperature control valve 200. The thermocouple is used for detecting whether flame exists or not, when the temperature of a detection area reaches the threshold value of the thermocouple, the thermocouple can generate thermoelectromotive force, a coil electrically connected with the thermocouple generates current, an iron core wound by the coil generates a magnetic field, a valve is attracted, and a gas circuit is kept open. Even if the charging power supply 500 is exhausted, the thermal electromotive force is continuously generated as long as the fire is not extinguished, and the valve is kept to be attracted. If the flame is extinguished, the thermocouple stops generating thermoelectromotive force, the magnetic field disappears, the valve resets, and the gas path is closed. The thermocouple electromagnetic valve 700 is utilized to keep the gas path open when flame exists, and once the flame is extinguished, the gas path is cut off, so that gas leakage is avoided.

In one embodiment, as shown in fig. 7, the charging power supply 500 is a capacitor.

The electric capacity of capacitor is less, and charge time is short, can be very fast be full of for the capacitor after charging circuit 600 switches on the commercial power and electric, and discharge time is also short simultaneously, utilizes the capacitor to shorten impulse igniter 100 and lasts the time that produces the electric spark as charging power supply 500, will exhaust the electric quantity very soon after accomplishing the ignition, is difficult to cause the potential safety hazard because it is too for a long time to last to produce the electric spark, improves the safety in utilization.

In one embodiment, the capacitor is a supercapacitor. The super capacitor has relatively large capacitance, and can keep a certain time to supply power to the pulse igniter 100, thereby avoiding the problem that the pulse igniter 100 stops generating electric sparks because the temperature control valve 200 is not opened.

In one embodiment, the charging power source 500 may be a battery, but the battery generally has a large capacitance, a long charging time and a long discharging time, the pulse igniter 100 may generate the electric spark for a long time, and the safety is not as good as that of using a capacitor, if the battery with a small capacitance should be selected.

In one embodiment, as shown in fig. 7, the gas igniter further includes a discharge resistor 810;

the first end of the discharge resistor 810 is electrically connected with the first end of the capacitor, and the second end is electrically connected with the power input end of the pulse igniter 100 and the input end of the thermocouple solenoid valve 700;

the second end of the capacitor is grounded;

the ground terminal of the pulse igniter 100 is grounded;

the output of the thermocouple solenoid valve 700 is grounded.

According to the capacitance discharge time constant T ═ RC, when the capacitance value is fixed, the larger the resistance of the discharge resistor 810 is, the longer the discharge time is, and the duration time of the electric spark generated by the pulse igniter 100 is increased, and the discharge resistor 810 is provided to appropriately prolong the discharge time of the capacitor, so that even after the capacitor is charged in a short time, the discharge time can be prolonged as long as possible, and the phenomenon that the electric spark is generated by the pulse igniter 100 and the ignition fails because the temperature control valve 200 is not opened yet is avoided.

In one embodiment, as shown in fig. 8, the gas ignition device further includes:

the input end of the voltage transformation circuit 820 is electrically connected to the second end of the discharge resistor 810, and the output end is electrically connected to the power input end of the pulse igniter 100 and the power input end of the thermocouple solenoid valve 700.

The voltage output by the charging power supply 500 can be adjusted to the working voltage required by the electric load by using the voltage transformation circuit 820, and the charging power supply can adapt to more types and models of electric loads.

The transforming circuit 820 may be a boost circuit, a buck circuit, or a transformer, as desired.

In one embodiment, as shown in fig. 9, the gas ignition device further includes: a low dropout linear regulator 830;

the input end of the low dropout regulator 830 is electrically connected to the output end of the voltage transformation circuit 820, and the output end is electrically connected to the power input end of the pulse igniter 100 and the power input end of the thermocouple solenoid valve 700.

The low-voltage linear voltage regulator is used for stabilizing the voltage output by the voltage transformation circuit 820, so as to ensure the stable work of the pulse igniter 100 and the thermocouple electromagnetic valve 700.

The low dropout regulator 830 (LDO) consumes very low energy, and reduces the consumption of the capacitor in the circuit supplying the pulse igniter 100 as much as possible, thereby prolonging the discharge time. The low dropout regulator 830 has low cost, low noise, low quiescent current, and requires few external components, usually requiring only one or two bypass capacitors, which can simplify circuit design.

In one embodiment, a gas oven is also provided, which includes the gas ignition device in any one of the above embodiments.

Continuously supply power until charging source 500 electric quantity exhausts for pulse igniter 100 through charging source 500, make pulse igniter 100 continuously produce the electric spark in by power supply period, during the period switch to the work position with temperature-sensing valve 200 and export the gas to gas fire row 400 can utilize the electric spark ignition gas that pulse igniter 100 produced to the work position, realize the ignition, need not simultaneous control ignition and open the gas valve, high durability and convenient operation, can stabilize safe ignition, avoid many times the ignition failure release too much gas gets into inside the oven, and then take place the detonation when avoiding reigniting.

In one embodiment, a gas oven is also provided, which includes the gas ignition device in any one of the above embodiments.

Continuously supplying power to the pulse igniter 100 through the charging power supply 500 until the electric quantity of the charging power supply 500 is exhausted, continuously generating electric sparks during the power supply of the pulse igniter 100, switching the temperature control valve 200 to a working position at any time during the period, outputting the gas to the gas fire grate 400, and igniting the gas by using the electric sparks generated by the pulse igniter 100, so that ignition is realized, ignition and opening of a gas valve are not required to be controlled simultaneously, the operation is convenient, safe ignition can be stabilized, and the potential safety hazard that too much gas is released to cause gas poisoning or ignition deflagration due to multiple times of ignition failure is avoided.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A gas ignition device, comprising:

a pulse igniter (100) for generating an electric spark when energized;

the temperature control valve (200) is arranged between an air outlet of the gas pipeline (300) and an air inlet of the gas fire grate (400) and used for outputting gas to the gas fire grate (400) when the gas fire grate is switched to a working position;

the charging power supply (500) is electrically connected with the pulse igniter (100) and is used for continuously supplying power to the pulse igniter (100) until the electric quantity is exhausted;

and the charging circuit (600) is electrically connected with the charging power supply (500) and is used for charging the charging power supply (500) when the mains supply is connected.

2. The gas ignition device according to claim 1, characterized in that the thermo valve (200) is provided with a transmission member (210), a knob stem (220), a knob (230) and a micro switch (240);

the microswitch (240) is used for connecting the charging circuit (600) and the mains supply in series;

the transmission piece (210) is sleeved on the knob (230) rod (220) and is driven by the knob (230) rod (220) to rotate or move up and down along the axial direction of the knob (230) rod (220), and the transmission piece (210) moves along with the knob (230) through the knob (230) rod (220); when the knob (230) is rotated to switch the temperature control valve (200) to a closed position, the transmission piece (210) is rotated to a position at least partially overlapped with an elastic plectrum (241) of the microswitch (240), and the transmission piece (210) is used for pressing the elastic plectrum (241) when the knob (230) is pressed so as to conduct the microswitch (240); when the knob (230) is rotated to switch the temperature control valve (200) to a working position, the transmission piece (210) is rotated to a position which is not overlapped with the elastic poking piece (241) of the microswitch (240).

3. Gas ignition device according to claim 2, characterized in that said charging circuit (600) comprises:

and the rectifying circuit (601) is used for being connected with the mains supply through the microswitch (240) and rectifying alternating-current voltage input by the mains supply into direct-current voltage and outputting the direct-current voltage to the charging power supply (500) when the microswitch (240) is closed.

4. A gas ignition device as claimed in any one of claims 1 to 3, further comprising:

the thermocouple electromagnetic valve (700) is arranged between the gas pipeline (300) and the temperature control valve (200) and is used for opening the valve when the thermocouple is electrified or detects that the flame temperature generates thermoelectric power so as to introduce gas into the temperature control valve (200);

the charging power supply (500) is also used for supplying power to the thermocouple solenoid valve (700).

5. Gas ignition device according to claim 4, characterized in that said charging power source (500) is a capacitor.

6. The gas ignition device of claim 5, further comprising a discharge resistor;

the first end of the discharge resistor (810) is electrically connected with the first end of the capacitor, and the second end of the discharge resistor is electrically connected with the power input end of the pulse igniter (100) and the input end of the thermocouple electromagnetic valve (700);

a second terminal of the capacitor is grounded;

the grounding end of the pulse igniter (100) is grounded;

the output end of the thermocouple electromagnetic valve (700) is grounded.

7. The gas ignition device of claim 6, further comprising:

and the input end of the voltage transformation circuit (820) is electrically connected with the second end of the discharge resistor (810), and the output end of the voltage transformation circuit is electrically connected with the power supply input end of the pulse igniter (100) and the power supply input end of the thermocouple electromagnetic valve (700).

8. The gas ignition device of claim 7, further comprising a low dropout linear regulator (830);

the input end of the low-dropout linear regulator (830) is electrically connected with the output end of the voltage transformation circuit (820), and the output end of the low-dropout linear regulator is electrically connected with the power input end of the pulse igniter (100) and the power input end of the thermocouple electromagnetic valve (700).

9. A gas-fired oven comprising a gas ignition device as claimed in any one of claims 1 to 8.

10. A gas range comprising a gas ignition device according to any one of claims 1 to 8.

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