Integrated pulse extinguishing protection controller

Abstract

The utility model discloses an integrated pulse extinguishing protection controller, which comprises a master control MCU (Microprogrammed Control Unit), an RXD pin and a TXD pin of the watchdog chip are connected to the main control MCU; a switching power supply circuit; the ignition needle is connected to the switching power supply circuit through the ignition circuit; and the flame detection circuit is connected in series with the ignition circuit, and an AD1 pin and an AD2 pin of the flame detection circuit are respectively connected with the main control MCU and the watchdog chip. According to the utility model, a common electromagnetic valve and a single-needle induction needle can be adopted for control, so that the manufacturing cost is greatly reduced, and the controller is more stable and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of integrated pulse flameout controller. BACKGROUND

[0002] Pulse igniter is the pulse high-frequency oscillator composed of electronic components, under rated working voltage environment, high-frequency voltage generated by high-frequency oscillation, 12KV above high voltage is generated by step-up transformer, carries out sharp tip discharge conversion into discharge energy, to generate continuity instantaneous spark, the spark emitted leads the gas on burner.

[0003] The pulse flameout controller on current market is all connected with 220V power supply, controller outlet has 220V fan, and low-current solenoid valve and double-needle induction needle are used for ion induction, not only high manufacturing cost, but also difficult to produce, high rejection rate. UTILITY MODEL CONTENT

[0004] The utility model aims at the deficiency of prior art and provides a kind of integrated pulse flameout controller technical scheme, not only can use ordinary solenoid valve and single-needle induction needle to control, greatly reduce manufacturing cost, and make controller more stable and reliable.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] A kind of integrated pulse flameout controller, characterized by comprising

[0007] A main control MCU;

[0008] A watchdog chip, the RXD pin and TXD pin of watchdog chip are connected to main control MCU;

[0009] A switching power supply circuit;

[0010] An ignition circuit, ignition needle is connected to switching power supply circuit through ignition circuit;

[0011] And a flame detection circuit, flame detection circuit is connected in series with ignition circuit, the AD1 pin and AD2 pin of flame detection circuit are connected to main control MCU and watchdog chip respectively.

[0012] Through the design of the above structure, not only can ordinary solenoid valve and single-needle induction needle be controlled, manufacturing cost is greatly reduced, and controller is more stable and reliable.

[0013] Further, the ignition circuit comprises a transformer T3, a relay K1, a transistor Q3 and a rectifier bridge, the relay K1 is connected in parallel with a diode D3 and is connected in series with a collector of the transistor Q3, a base and an emitter of the transistor Q3 are connected in parallel with a resistor R4, and are connected to a main control MCU through a resistor R14 via a DH pin, the relay K1 is connected to the rectifier bridge through a capacitor ZC1, the rectifier bridge is connected in parallel with a diode D16 and is connected in series with a capacitor C4, and is further connected to the transformer T3.

[0014] Further, the flame detection circuit comprises a diode D10, a resistor R29, a resistor R11, a resistor R22, a resistor R38, a resistor R39 and a capacitor ZC4, one end of the diode D10 is connected to the transformer T3, the other end is grounded, one end of the resistor R29 is connected to the transformer T3, the other end is connected to the resistor R11, the resistor R38 and the capacitor ZC4, the other end of the capacitor ZC4 is grounded, the resistor R11 is connected to a 5V voltage through the resistor R22 and is connected to an AD1 pin, and the resistor R38 is connected to a 5V voltage through the resistor R39 and is connected to an AD2 pin.

[0015] Further, the electromagnetic valve output protection circuit is further connected to a watchdog chip through a WDT pin and is further connected to the main control MCU through an F_AD1 pin.

[0016] Further, the buzzer and the buzzer driving circuit are further connected to the main control MCU through a BUZ pin.

[0017] Further, the fan and the fan driving circuit are further connected to the main control MCU through a FAN pin.

[0018] Further, the burning port is further connected to the main control MCU through an SDA pin and an SCK pin.

[0019] The utility model discloses a pulse flameout controller, which comprises a main control MCU, a buzzer, a fan, a burning port, an electromagnetic valve, a flame detection circuit, an ignition circuit and an electromagnetic valve output protection circuit.

[0020] The utility model discloses a pulse flameout controller, which comprises a main control MCU, a buzzer, a fan, a burning port, an electromagnetic valve, a flame detection circuit, an ignition circuit and an electromagnetic valve output protection circuit. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model discloses a pulse flameout controller, which comprises a main control MCU, a buzzer, a fan, a burning port, an electromagnetic valve, a flame detection circuit, an ignition circuit and an electromagnetic valve output protection circuit.

[0022] Fig. 1 The utility model discloses a pulse flameout controller, which comprises a main control MCU, a buzzer, a fan, a burning port, an electromagnetic valve, a flame detection circuit, an ignition circuit and an electromagnetic valve output protection circuit.

[0023] Fig. 2 The utility model discloses a pulse flameout controller, which comprises a main control MCU, a buzzer, a fan, a burning port, an electromagnetic valve, a flame detection circuit, an ignition circuit and an electromagnetic valve output protection circuit.

[0024] Fig. 3The circuit diagram of the main control MCU in the utility model.

[0025] In the figure: 1-switching power supply circuit; 2-ignition circuit; 3-flame detection circuit; 4-fan driving circuit; 5-solenoid valve output protection circuit; 6-buzzing driver circuit; 7-burning port. DETAILED DESCRIPTION

[0026] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor should belong to the protection scope of the utility model.

[0027] In order to make the person in the art better understand the utility model scheme, the technical solutions in the embodiments of the utility model will be described clearly and completely in combination with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor should belong to the protection scope of the utility model.

[0028] It should be noted that the terms "first", "second" and the like in the description and claims of the utility model and the above-mentioned drawings are used to distinguish similar objects, not necessarily to describe a specific order or sequence. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0029] As Figs. 1 to 3 As shown, the utility model is an integrated pulse flameout controller, which comprises a main control MCU, a watchdog chip, a switching power supply circuit 1, an ignition circuit 2 and a flame detection circuit 3.

[0030] The RXD pin and the TXD pin of the watchdog chip are connected to the main control MCU.

[0031] The ignition needle is connected to the switching power supply circuit 1 through the ignition circuit 2.

[0032] The ignition circuit 2 comprises a transformer T3, a relay K1, a transistor Q3 and a rectifier bridge. The relay K1 is connected in parallel with a diode D3 and is connected in series with the collector of the transistor Q3. The base and the emitter of the transistor Q3 are connected in parallel with a resistor R4 and are connected to the main control MCU through the DH pin via a resistor R14. The relay K1 is connected to the rectifier bridge through a capacitor ZC1. The rectifier bridge is connected in parallel with a diode D16 and is connected in series with a capacitor C4, and then is connected to the transformer T3.

[0033] The flame detection circuit 3 is connected in series with the ignition circuit 2. The AD1 pin and the AD2 pin of the flame detection circuit 3 are connected to the main control MCU and the watchdog chip respectively.

[0034] The flame detection circuit 3 comprises a diode D10, a resistor R29, a resistor R11, a resistor R22, a resistor R38, a resistor R39 and a capacitor ZC4, one end of the diode D10 is connected to the transformer T3, the other end is grounded, one end of the resistor R29 is connected to the transformer T3, the other end is connected to the resistor R11, the resistor R38 and the capacitor ZC4, the other end of the capacitor ZC4 is grounded, the resistor R11 is connected to a 5V voltage through the resistor R22 and is connected to the AD1 pin, the resistor R38 is connected to a 5V voltage through the resistor R39 and is connected to the AD2 pin.

[0035] The pulse flameout protection controller further comprises an electromagnetic valve output protection circuit 5, a WDT pin of the electromagnetic valve output protection circuit 5 is connected to the watchdog chip, and an F_AD1 pin of the electromagnetic valve output protection circuit 5 is connected to the main control MCU.

[0036] The pulse flameout protection controller further comprises a buzzer and a buzzer driving circuit 6, the buzzer is connected to the main control MCU through a BUZ pin of the buzzer driving circuit 6.

[0037] The pulse flameout protection controller further comprises a fan and a fan driving circuit 4, the fan is connected to the main control MCU through the fan driving circuit 4 through a FAN pin.

[0038] The pulse flameout protection controller further comprises a burning port 7, an SDA pin and an SCK pin of the burning port 7 are connected to the main control MCU.

[0039] Through the design of the above structure, not only the common electromagnetic valve and single-needle induction needle can be controlled, the manufacturing cost is greatly reduced, and the controller is more stable and reliable.

[0040] In actual work, the system is powered on first, the fan starts to work, when the ignition switch is detected to be closed, the ignition circuit 2 starts to work, the electromagnetic valve is attracted, the ignition switch is closed after 5 seconds, the flame signal is detected through the flame detection circuit 3, if the flame signal is detected, the system normally runs, if the flame signal cannot be detected, it is considered that ignition fails and the electromagnetic valve is closed, the buzzer alarms twice, and the continuous alarm is 8 times, and then the working state is exited; the main control MCU and the watchdog chip communicate with each other during the running process, and the flame signal is continuously monitored, if the flame signal cannot be detected by one of the circuits, the electromagnetic valve is closed, the buzzer alarms three times, and the continuous alarm is 8 times, and then the working state is exited; if the electromagnetic valve is detected to be open during the working process, the buzzer alarms four times, and the continuous alarm is 8 times, and then the working state is exited.

[0041] The above is only a specific embodiment of the utility model, but the technical features of the utility model are not limited to this. Any simple change, equivalent replacement or modification made on the basis of the utility model to realize basically the same technical effect is covered in the protection scope of the utility model.

Claims

1. An integrated pulse flame failure control, comprising: Comprising a main control MCU; a watchdog chip, RXD pin and TXD pin of the watchdog chip are connected to the main control MCU; a switching power supply circuit; an ignition circuit, an ignition needle is connected to the switching power supply circuit through the ignition circuit; and a flame detection circuit, the flame detection circuit is connected in series with the ignition circuit, AD1 pin and AD2 pin of the flame detection circuit are connected to the main control MCU and the watchdog chip respectively.

2. The integrated pulse and flame failure control of claim 1 wherein: The ignition circuit comprises a transformer T3, a relay K1, a transistor Q3 and a rectifier bridge, the relay K1 is connected in parallel with a diode D3 and connected in series with the collector of the transistor Q3, the base and emitter of the transistor Q3 are connected in parallel with a resistor R4, and then connected to the main control MCU through a resistor R14 via DH pin, the relay K1 is connected to the rectifier bridge through a capacitor ZC1, the rectifier bridge is connected in series with a capacitor C4 after being connected in parallel with a diode D16, and then connected to the transformer T3.

3. An integrated pulse and flame failure control according to claim 2, wherein: The flame detection circuit comprises a diode D10, a resistor R29, a resistor R11, a resistor R22, a resistor R38, a resistor R39 and a capacitor ZC4, one end of the diode D10 is connected to the transformer T3, and the other end is grounded, one end of the resistor R29 is connected to the transformer T3, and the other end is connected to the resistor R11, the resistor R38 and the capacitor ZC4, the other end of the capacitor ZC4 is grounded, the resistor R11 is connected to 5V voltage through the resistor R22, and connected to the AD1 pin, the resistor R38 is connected to 5V voltage through the resistor R39, and connected to the AD2 pin.

4. The integrated pulse and flame failure control of claim 1 wherein: It also comprises an electromagnetic valve output protection circuit, WDT pin of the electromagnetic valve output protection circuit is connected to the watchdog chip, F_AD1 pin of the electromagnetic valve output protection circuit is connected to the main control MCU.

5. The integrated pulse and flame failure control of claim 1 wherein: It also comprises a buzzer and a buzzer driving circuit, the buzzer is connected to the main control MCU through the BUZ pin of the buzzer driving circuit.

6. The integrated pulse and flame failure control of claim 1 wherein: It also comprises a fan and a fan driving circuit, the fan is connected to the main control MCU through the FAN pin of the fan driving circuit.

7. The integrated pulse and flame failure control of claim 1 wherein: It also comprises a burning port, SDA pin and SCK pin of the burning port are connected to the main control MCU.

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