CN214468809U

CN214468809U - A power supply circuit for high-frequency ignition of an integrated stove

Info

Publication number: CN214468809U
Application number: CN202120326071.6U
Authority: CN
Inventors: 丁祥
Original assignee: Xinchang Kejia Electric Appliance Co ltd
Current assignee: Xinchang Kejia Electric Appliance Co ltd
Priority date: 2021-02-04
Filing date: 2021-02-04
Publication date: 2021-10-22
Anticipated expiration: 2031-02-04

Abstract

The utility model discloses a supply circuit of integrated kitchen high frequency ignition relates to integrated kitchen control, aims at solving frequent change battery, and if the battery that the electric quantity exhausts is not in time changed, can influence the use and the safe problem of product, and its technical scheme main points are: the voltage reduction module is connected with the mains supply and used for outputting a low-voltage direct current safety voltage; the voltage stabilizing module is connected with the voltage reducing module and is used for converting the safety voltage into direct-current voltage with a specified voltage value; the standby power supply module is connected with the voltage stabilizing module and responds to the power failure of the mains supply to supply power to the voltage stabilizing module; and the ignition switch circuit is connected with the voltage stabilizing circuit and responds to user triggering to output an ignition signal. The utility model discloses a stand-by power supply module maintains the power supply, realizes the switching of multiple power supply mode, guarantees the normal use of integrated kitchen, and reduces the power consumption of battery, prolongs the life of battery, has solved the high frequency and has igniteed and lead to the problem that the battery frequently changed.

Description

Power supply circuit for high-frequency ignition of integrated stove

Technical Field

The utility model relates to an integrated kitchen control, more specifically say, it relates to a supply circuit of integrated kitchen high frequency ignition.

Background

The integrated stove is a kitchen appliance integrating a plurality of functions of a range hood, a gas stove, a disinfection cabinet, a storage cabinet and the like, and is also called as an environment-friendly stove or an integrated environment-friendly stove in the industry. Has the advantages of space saving, good oil fume extraction effect, energy saving, low consumption, environmental protection and the like.

The ignition device of the integrated cooker sold in the market at present adopts a battery to directly supply power, the required current of the high-frequency ignition device is large, the electric quantity of the battery is exhausted quickly, the battery can be frequently replaced, and if the battery exhausted is not replaced in time, the use and the safety of products can be influenced.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a supply circuit of integrated kitchen high frequency ignition can maintain the power supply through stand-by power supply module, realizes the switching of multiple power supply mode, guarantees the normal use of integrated kitchen, and reduces the power consumption of battery, prolongs the life of battery, has solved high frequency ignition and has leaded to the problem that the battery frequently changed.

The above technical purpose of the present invention can be achieved by the following technical solutions: a power supply circuit for high-frequency ignition of an integrated cooker comprises:

the voltage reduction module is connected with the mains supply and used for outputting a low-voltage direct current safety voltage;

the voltage stabilizing module is connected with the voltage reducing module and is used for converting the safety voltage into direct-current voltage with a specified voltage value;

the standby power supply module is connected with the voltage stabilizing module and responds to the power failure of the mains supply to supply power to the voltage stabilizing module;

the ignition switch circuit is connected with the voltage stabilizing circuit and responds to user triggering to output an ignition signal;

and the continuous trigger circuit is connected with the ignition switch circuit and responds to the ignition signal to continuously supply power to the burner.

Through adopting above-mentioned technical scheme, the commercial power passes through the step-down module and realizes stepping down, and all be connected with stand-by power supply module and voltage stabilizing module, realize supplying power to the gas-cooker of integrated kitchen that is stable under the condition of commercial power supply, and when the commercial power outage, can maintain the power supply through stand-by power supply module, realize the switching of multiple power supply mode, guarantee the normal use of integrated kitchen, and reduce the power consumption of battery, prolong the life of battery, the problem that high frequency ignition leads to the battery to change frequently has been solved.

The utility model discloses further set up to: the voltage reduction module comprises a divider resistor and a voltage reduction capacitor which are sequentially connected in series, and two ends of the voltage reduction capacitor are connected with a high-resistance resistor in parallel.

Through adopting above-mentioned technical scheme, through divider resistance and the step-down electric capacity of establishing ties, realize falling the commercial power to the safe voltage below 30 volts through electric capacity step-down.

The utility model discloses further set up to: the voltage stabilizing module is a voltage stabilizing circuit based on a chip MAX610, the input end of the chip MAX610 is connected with a mains supply through a voltage reducing module, and the output end of the voltage stabilizing circuit is connected with an ignition switch circuit and used for outputting 5V power supply voltage.

By adopting the technical scheme, the conversion efficiency of the chip MAX610 reaches more than 90%, and the chip MAX has the functions of low battery voltage detection, work and turn-off control, so that the compatible switching of the commercial power and the standby power supply module is realized, and the ignition switch circuit is continuously and stably powered.

The utility model discloses further set up to: the standby power supply module comprises a plurality of storage batteries detachably connected to the integrated cooker, and the anodes of the storage batteries are connected with the 8 pins of the chip MAX610 after being connected with the unidirectional diodes in series.

Through adopting above-mentioned technical scheme, supply power through adopting the battery, have great holding capacity to the one-way diode of series connection improves the stability of stand-by power supply module power supply.

The utility model discloses further set up to: the voltage display circuit is connected with the standby power supply module and used for acquiring and displaying the real-time voltage of the standby power supply module.

Through adopting above-mentioned technical scheme, adopt voltage display circuit to be connected with stand-by power supply module, can inspect stand-by power supply module's real-time voltage, the people of being convenient for in time change the not enough battery of electric quantity.

The utility model discloses further set up to: the ignition switch circuit comprises a plurality of electric storage capacitors connected with the voltage stabilizing module and a knob switch connected with the electric storage capacitors in series, a movable contact of the knob switch is electrically connected with a triode switch circuit, and the triode switch circuit is connected with the continuous trigger circuit through a coil in a coupling mode.

Through adopting above-mentioned technical scheme, through the setting of electric power storage capacitor and rotary switch, realize that rotary switch charges to electric power storage capacitor when triggering, voltage stabilizing module, and after rotary switch triggered, the disconnection was discharged to electric power storage capacitor's power supply back, and electric power storage capacitor discharges as energy storage component to keep switching on of triode switch circuit, carry out the operation of igniteing.

The utility model discloses further set up to: the triode switch circuit comprises a switch triode and a relay connected with the switch triode in series, wherein a controlled switch of the relay is connected with a coil in series and is connected with a trigger circuit in a triggering mode in response to the switch triode being closed.

Through adopting above-mentioned technical scheme, through the closure of switch triode for the relay gets electric, thereby realizes the power supply to the coil, in order to reach the switch triode closure in order to trigger continuous trigger circuit, continuously ignites the gas-cooker.

The utility model discloses further set up to: the continuous trigger circuit comprises a self-oscillation circuit and a switch controlled silicon, and two ends of the switch controlled silicon are connected in parallel with a transformation coil connected with the combustor.

By adopting the technical scheme, high-frequency ignition is realized through the self-oscillation circuit and the arrangement of the switch silicon controlled rectifier.

To sum up, the utility model discloses following beneficial effect has:

the commercial power passes through the step-down module and realizes stepping down to all be connected with stand-by power supply module and voltage stabilizing module, realize supplying power to the gas-cooker of integrated kitchen that is stable under the condition of commercial power, and when the commercial power outage, can maintain the power supply through stand-by power supply module, realize the switching of multiple power supply mode, guarantee the normal use of integrated kitchen, and reduce the power consumption of battery, the life of extension battery has solved the high frequency and has igniteed and lead to the problem that the battery frequently changed.

Drawings

Fig. 1 is a block diagram of the present invention;

fig. 2 is a schematic circuit diagram of the voltage stabilizing module of the present invention;

fig. 3 is a schematic circuit diagram of the continuous trigger circuit of the present invention.

In the figure: 1. a voltage reduction module; 2. a voltage stabilization module; 3. a standby power supply module; 4. an ignition switch circuit; 5. a continuous trigger circuit; 6. a voltage display circuit; 7. a triode switch circuit; 8. a self-oscillation circuit.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

A power supply circuit for high-frequency ignition of an integrated cooker, as shown in figure 1, comprises: the voltage reduction module 1, the voltage stabilization module 2, the standby power module 3, the ignition switch circuit 4 and the continuous trigger circuit 5, wherein, the voltage reduction module 1 is connected with the mains supply and is used for outputting safe voltage which is low-voltage direct current, specific safe voltage means under dry condition, the voltage value is less than 36V, the voltage stabilization module 2 is connected with the voltage reduction module 1 and is used for converting the safe voltage into direct current voltage with specified value, the standby power module 3 is connected with the voltage stabilization module 2 and is used for supplying power to the voltage stabilization module 2 when the mains supply is powered off, the ignition switch circuit 4 is connected with the voltage stabilizing circuit and is used for outputting ignition signals when a user triggers, the continuous trigger circuit 5 is connected with the ignition switch circuit 4 and is used for continuously supplying power to a combustor when the mains supply is powered off.

As shown in fig. 2, the voltage-reducing module 1 includes a divider resistor and a voltage-reducing capacitor connected in series in sequence, both ends of the voltage-reducing capacitor are connected in parallel with a high-resistance resistor, specifically, in this embodiment, the resistance of the divider resistor is 100 ohms, and the resistance of the high-resistance resistor is 1 megaohm, and the voltage-stabilizing module 2 is a voltage-stabilizing circuit based on the chip MAX610, the input end of the chip MAX610 is connected with the mains supply through the voltage-reducing module 1, specifically, the zero line of the mains supply is connected to pin 1 of the chip MAX610, and pin 7 of the chip MAX610 is connected to the end of the voltage-reducing capacitor far away from the divider capacitor, the output end of the voltage-stabilizing circuit is connected to the ignition switch circuit 4 for outputting 5V supply voltage, that is, the output is 5V supply voltage between pin 3 and pin 6 of the chip MAX 610.

As shown in fig. 2, stand-by power supply module 3 is including dismantling a plurality of batteries of connection on integrated kitchen, be connected with chip MAX 610's 8 feet behind the anodal series connection one-way diode of battery, and the both ends of one-way diode are parallelly connected to have resistance R8, and parallelly connected anti-surge capacitance C5 behind the battery series connection one-way diode, and voltage display circuit 6 is connected with stand-by power supply module 3, be used for acquireing and showing stand-by power supply module 3's real-time voltage, specific voltage display circuit 6 is the voltmeter, the both ends of voltmeter are parallelly connected the electric quantity that is used for real-time detection battery at the both ends of battery.

As shown in fig. 3, the ignition switch circuit 4 includes a plurality of storage capacitors connected to the regulator module 2 and a rotary switch connected in series with the storage capacitors, a movable contact of the rotary switch is electrically connected to the triode switch circuit 7, the triode switch circuit 7 is coupled to the continuous trigger circuit 5 through a coil, specifically, the storage capacitors are electrolytic capacitor C1 and electrolytic capacitor C2, the rotary switches are switch K1 and switch K2 for respectively controlling a plurality of burners, and the switch K1 and the switch K2 are normally connected to ends of the storage capacitors, so as to charge the storage capacitors by the regulator module 2, and when the rotary switch rotates, the storage capacitors and the triode switch circuit 7 are turned on, so as to discharge and supply power to the storage capacitors.

As shown in fig. 3, the transistor switch circuit 7 includes a switch transistor and a relay connected in series with the switch transistor, the controlled switch of the relay is connected in series with the coil, the trigger circuit 5 is connected in response to the switch transistor being closed to trigger, specifically, the switch transistor is selected from an NPN type transistor, and the collector of the switch transistor is connected with a normally open relay J, and the controlled switch of the relay J is connected in series with the coil.

As shown in fig. 3, the continuous trigger circuit 5 includes a self-oscillation circuit 8 and a switching thyristor, and a transformer coil connected to the burner is connected in parallel to two ends of the switching thyristor, wherein the self-oscillation circuit 8 forms an oscillation current by a resistor R5 and a capacitor C3, so as to realize the on and off of the switching thyristor, and when the current magnitude satisfies the on current of the switching thyristor, the capacitor C4 discharges to drive the burner.

In the working process, the mains supply is converted into safe voltage with the voltage value less than 30V by connecting a divider resistor and a voltage reduction capacitor through a capacitance voltage reduction method, voltage conversion is realized by adopting the divider resistor, the voltage reduction capacitor and a high-resistance resistor in a capacitance voltage reduction mode, the cost of a circuit design chip is reduced, and the chip MAX610 is used as a voltage stabilizing circuit and is connected with the mains supply through a voltage reduction module 1 and a standby power module 3 containing a storage battery, so that the aim of supplying the storage battery and the mains supply is fulfilled, when the mains supply is powered off, the storage battery can continuously supply power to a voltage stabilizing module 2, so that the voltage stabilizing circuit can continuously and stably output 5V voltage, because the storage capacitor is connected with the voltage stabilizing circuit, when a knob switch is not triggered, the storage capacitor is connected with the voltage stabilizing circuit, the charging of the storage capacitor is realized, and when the knob switch rotates to connect the storage capacitor with a switch triode, electric power storage capacitor discharge produces the circuit, make the switch triode switch on and supply power to the relay, thereby make the coupling coil between ignition switch circuit 4 and the continuous trigger circuit 5 realize the current transfer, and when 4 outage of ignition switch circuit through the self-excited vibration circuit that comprises resistance and electric capacity are parallelly connected in continuous trigger circuit 5, continuously supply with one end electric current, make the switch silicon controlled rectifier trigger in succession, discharge the combustor, and then light the gas-cooker, and carry out real-time detection through voltage display module 6 to stand-by power supply module 3's voltage, the people of being convenient for observe, in time change when the battery electric quantity is low, the normal use of difficult influence combustor.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. a power supply circuit for high-frequency ignition of an integrated stove, characterized in that: comprising:

The step-down module (1) is connected with the mains to output a safe voltage of low-voltage direct current;

a voltage-stabilizing module (2), connected to the step-down module (1), for converting the safety voltage into a DC voltage of a specified volt value;

a backup power supply module (3), connected to the voltage stabilization module (2), to supply power to the voltage stabilization module (2) in response to a power failure of the mains;

An ignition switch circuit (4), connected to the voltage regulator circuit, outputs an ignition signal in response to user triggering;

A continuous trigger circuit (5), connected to the ignition switch circuit (4), responds to the ignition signal to continuously supply power to the burner.

2. A power supply circuit for high-frequency ignition of an integrated stove according to claim 1, characterized in that: the step-down module (1) comprises a voltage-dividing resistor and a step-down capacitor connected in series in sequence, and the voltage-reducing capacitor is A high-resistance resistor is connected in parallel at both ends.

3 . The power supply circuit for high-frequency ignition of an integrated stove according to claim 1 , wherein the voltage regulator module ( 2 ) is a voltage regulator circuit based on a chip MAX610 , and the input end of the chip MAX610 is regulated by a voltage drop. 4 . The voltage module (1) is connected to the commercial power, and the output end of the voltage regulator circuit is connected to the ignition switch circuit (4) for outputting a power supply voltage of 5V.

4. A power supply circuit for high-frequency ignition of an integrated stove according to claim 3, characterized in that: the backup power module (3) comprises a plurality of batteries detachably connected to the integrated stove, and the positive electrodes of the batteries are connected in series The one-way diode is connected to pin 8 of the chip MAX610.

5. A power supply circuit for high-frequency ignition of an integrated stove according to claim 1, characterized in that: it further comprises a voltage display circuit (6), and the voltage display circuit (6) is connected to a backup power supply module (3), Used to obtain and display the real-time voltage of the standby power module (3).

6 . The power supply circuit for high-frequency ignition of an integrated stove according to claim 1 , wherein the ignition switch circuit ( 4 ) comprises a plurality of storage capacitors connected to the voltage regulator module ( 2 ) and a plurality of storage capacitors connected to the power storage module ( 2 ). 7 . A rotary switch with capacitors connected in series, the movable contact of the rotary switch is electrically connected with a triode switch circuit (7), and the triode switch circuit (7) and the continuous trigger circuit (5) are connected by coil coupling.

7 . The power supply circuit for high-frequency ignition of an integrated stove according to claim 6 , wherein the transistor switching circuit (7) comprises a switching transistor and a relay connected in series with the switching transistor, and a controlled switch of the relay In series with the coil, a trigger circuit (5) is connected in response to the switching transistor closing to trigger.

8 . The power supply circuit for high-frequency ignition of an integrated stove according to claim 6 , wherein the continuous trigger circuit ( 5 ) comprises a self-excited oscillation circuit ( 8 ) and a switch thyristor, and the switch can Both ends of the thyristor are connected in parallel with a transformer coil connected to the burner.