A control system and control method for stove fan

Abstract

The present invention provides a control system and a control method for a stove fan. The key points of the technical solution are as follows: the control system includes a fan drive control board and a gear regulator, the fan drive control board is electrically connected to the gear regulator, a power supply circuit, a main control chip, and a motor drive circuit are arranged on the fan drive control board, a gear regulator is arranged in the gear regulator, the motor drive circuit is electrically connected to the motor in the stove fan, and the gear regulator is related to the fuel valve on the stove; the control method is to first adjust the best matching parameters, and then realize the linkage control of the stove fan and the fuel valve through the fan drive control board and the gear regulator; the present invention can adjust the fan speed and the best matching point between different models of stoves and different fuels, realize the linkage control of the stove fan and the fuel valve, so that the fuel can be fully burned to achieve the purpose of energy saving, emission reduction, high efficiency and environmental protection.

Description

[Technical field]

[0001] The invention relates to the field of control of stove fans, and in particular to a control system and a control method for stove fans. [Background technology]

[0002] The stoves used in the catering industry have long working hours and high energy consumption. The amount of fuel input is controlled by the fuel valve, and the amount of air intake is controlled by the fan. There is no linkage between the two, and the adjustment switch is not in the same place, so they can only be controlled manually. The opening degree of the fuel valve changes, but the fan speed does not change accordingly, resulting in a mismatch between the fuel input and the fan air supply, causing incomplete fuel combustion, fuel waste and being environmentally unfriendly. Therefore, the market is in urgent need of a control system that can efficiently utilize fuel and realize the linkage control of the stove fan and fuel valve.

[0003] In order to meet market demand, the patent of this invention proposes a control system and a control method for a stove fan. The control system proposed by the patent of this invention can adjust the fan speed and the optimal matching point between different models of stoves and different fuels, so that the fuel can be fully burned to achieve the purpose of energy saving, emission reduction, high efficiency and environmental protection. [Summary of the invention]

[0004] In order to meet market demand, improve fuel combustion efficiency, and achieve energy conservation, emission reduction, high efficiency and environmental protection, the present invention provides a control system and a control method for a stove fan.

[0005] The present invention is achieved through the following technical solutions:

[0006] A control system for a stove fan, characterized in that it includes a fan drive control board and a gear regulator, the fan drive control board is electrically connected to the gear regulator, the fan drive control board is provided with a power supply circuit, a main control chip, and a motor drive circuit, the gear regulator is provided with a gear regulation circuit, the power supply circuit is electrically connected to the main control chip, the motor drive circuit and the gear regulation circuit, the main control chip is electrically connected to the motor drive circuit, the gear regulation circuit is electrically connected to the main control chip, the motor drive circuit is electrically connected to the motor in the stove fan, and the gear regulation circuit is associated with a fuel valve on the stove.

[0007] The control system for a stove fan as described above is characterized in that: the power supply circuit includes an AC anti-interference circuit for shielding electromagnetic interference, a rectifier circuit for converting high-voltage alternating current into high-voltage direct current, a first step-down circuit for converting high-voltage direct current into low-voltage direct current to power the motor drive circuit, and a second step-down circuit for powering the main control chip; the gear regulator is provided with a third step-down circuit for powering the gear adjustment circuit; the first step-down circuit is electrically connected to the rectifier circuit, and the second step-down circuit and the third step-down circuit are both electrically connected to the first step-down circuit.

[0008] The control system for the stove fan as described above is characterized in that: the fan drive control board is also provided with a safety operation detection circuit for protecting the circuit from overcurrent and burning, and the safety operation detection circuit is electrically connected to the main control chip and the motor drive circuit.

[0009] The control system for a stove fan as described above is characterized in that: the gear adjustment circuit includes a control chip, and a plurality of pins of the control chip are electrically connected to a plurality of control gear circuits respectively. The control chip is also electrically connected to a magnetic control program burning port J2 for burning a control program, and a signal output port J1 for outputting a gear control signal. The main control chip is electrically connected to a main control program burning port P2 for burning a control program, and a signal receiving port P3 for receiving a gear control signal, and the signal output port J1 is electrically connected to the signal receiving port P3.

[0010] The control system for the stove fan as described above is characterized in that: the control gear circuit includes a magnetic control switch tube U15, pin ① of the magnetic control switch tube U15 is electrically connected to the output end of the third step-down circuit and connected in series with a capacitor C31 and then grounded, pin ② of the magnetic control switch tube U15 is grounded, and pin ③ is a trigger signal output end and is electrically connected to pin ③ of the control chip; an indicator light circuit and an external device expansion port are provided in the gear adjustment circuit, and the indicator light circuit includes a light emitting diode D34, and the positive electrode of the light emitting diode D34 is connected in series with a resistor R64 and then electrically connected to the pin of the control chip. The cathode of the light emitting diode D34 is grounded, the pin ① of the external device expansion port is grounded, and the pin ② is electrically connected to the pin of the control chip after being connected in series with a resistor R63.

[0011] The control system for stove fans as described above is characterized in that: the control system is also provided with a remote controller for setting system parameters and adjusting the matching degree of stoves of different models and different fuels, the remote controller is provided with a remote controller circuit, the remote controller circuit includes a remote controller power circuit, a remote control chip, a wireless signal transmitting circuit, a wireless signal receiving circuit, a data storage circuit, a display screen connection port and a human-computer interaction module, the remote controller power circuit is electrically connected to the remote control chip, the remote control chip is electrically connected to the wireless signal transmitting circuit, the wireless signal receiving circuit, the data storage circuit, the display screen connection port and the human-computer interaction module; the remote controller circuit and the gear adjustment circuit exchange data through wireless signals, and the gear adjustment circuit is provided with an adjustment signal receiving circuit and a parameter data transmitting circuit corresponding to the wireless signal transmitting circuit and the wireless signal receiving circuit.

[0012] The control system for stove fan as described above is characterized in that the human-computer interaction module is a key circuit for adjusting system parameters through keys or a touch screen control circuit for adjusting system parameters through a touch screen.

[0013] A speed regulation method using the above-mentioned control system is characterized in that: after the control system for the stove fan is installed, it is necessary to debug the control system through the remote controller according to the stove model and the fuel type to find the best matching parameters between the fan air intake and the fuel input to ensure that the fuel can be fully burned and achieve the purpose of energy saving and environmental protection; the gear adjustment circuit is associated with the fuel valve on the stove, and different gears in the gear adjustment circuit correspond to different fuel inputs. The best matching parameters can be found by adjusting the motor speed of the corresponding gear, changing the fan air intake and observing the flame state;

[0014] The specific adjustment process of the best matching parameters is as follows:

[0015] Rotate the fuel valve on the stove to the 1st gear position, and the control gear circuit corresponding to the 1st gear generates an induction signal;

[0016] The gear adjustment circuit transmits the gear control signal to the main control chip, and the main control chip controls the motor drive circuit to work in an initial state;

[0017] The remote controller controls the wireless signal transmitting circuit to transmit a motor speed regulating signal, and the regulating signal receiving circuit in the gear adjusting circuit receives the motor speed regulating signal and transmits it to the main control chip. The main control chip controls the motor driving circuit to adjust the motor speed until the best matching state is reached, and the first gear adjustment is completed;

[0018] The adjustment process of the best matching parameters for other gears is the same as that for the 1st gear;

[0019] While the remote controller adjusts the matching parameters, the main control chip transmits the motor speed data of the corresponding gear to the gear adjustment circuit, and sends the data to the remote controller circuit through the parameter data transmitting circuit, and the wireless signal receiving circuit receives the parameter data and stores the data in the data storage circuit;

[0020] For stoves of the same model and using the same fuel, it is only necessary to copy and transmit the data of the best matching parameters in the data storage circuit to the new control system through the remote controller;

[0021] The specific control process when the control system is used is as follows:

[0022] The fuel valve on the rotary stove adjusts the system gear position, and the control gear circuit corresponding to the gear position generates an induction signal;

[0023] The gear adjustment circuit transmits the gear control signal to the main control chip, and the main control chip controls the motor drive circuit to adjust the motor speed according to the best matching parameters;

[0024] When there is a blockage in the fan, the motor runs abnormally, and the driving current becomes larger. The safe operation detection circuit transmits an abnormal signal to the main control chip, and the main control chip controls the motor drive circuit to stop running, thereby protecting the system safety and preventing the current overload from burning the circuit;

[0025] Return the fuel valve on the stove to zero, and once the abnormality is resolved, restart the system to resume use.

[0026] Compared with the prior art, the present invention has the following advantages:

[0027] 1. The control system of the stove fan of the present invention is provided with a fan drive control board and a gear adjuster. The fan drive control board is electrically connected to the stove fan, the fan drive control board and the gear adjuster are electrically connected, and the gear adjuster is associated with the fuel valve on the stove, so that the stove fan and the fuel valve can be linked to each other, so that the stove is energy-saving and efficient and easy to adjust when in use.

[0028] 2. The control system for the stove fan of the present invention is provided with a safe operation detection circuit. When there is a blockage in the fan and the motor runs abnormally, the driving current becomes larger. The safe operation detection circuit transmits the abnormal signal to the main control chip. The main control chip controls the motor drive circuit to stop running, thereby protecting the system safety, preventing the current overload from burning the circuit, and reducing the safety hazards of the stove.

[0029] 3. The control system for the stove fan of the present invention is provided with a remote controller, which can be used to debug the control system and find the best matching parameters between the fan air intake and the fuel input to ensure that the fuel can be fully burned to achieve the purpose of energy saving and environmental protection. The adjustment process is simple, and the control system can be applied to stoves of different models and different types of fuels, and is easy to popularize.

[0030] 4. The control system for the stove fan of the present invention is provided with a data storage circuit. For stoves of the same model and using the same fuel, it is only necessary to copy and transmit the data of the best matching parameters in the data storage circuit to the new control system through the remote controller, which greatly facilitates manufacturers and users.

[0031] 5. The control method of the control system adopted in the present invention has quick response, simple control process, does not require complicated algorithms, and has strong practicality.

Brief Description of the Drawings

[0032] Figure 1 It is the overall structural diagram of the control system;

[0033] Figure 2 This is the circuit structure diagram of the fan drive control board;

[0034] Figure 3 It is the circuit structure block diagram of the gear regulator;

[0035] Figure 4 This is the circuit structure diagram of the remote control;

[0036] Figure 5 This is the overall circuit schematic diagram of the fan drive control board;

[0037] Figure 6 It is the overall circuit schematic diagram of the gear regulator;

[0038] Figure 7 This is the overall circuit schematic of the remote control;

[0039] Figure 8 It is the schematic diagram of the power supply circuit;

[0040] Fig. 9 This is the pin diagram of the main control chip;

[0041] Fig.10 It is the schematic diagram of the motor drive circuit;

[0042] Fig.11 It is the schematic diagram of the safe operation detection circuit;

[0043] Fig.12 This is the pin diagram of the control chip;

[0044] Fig.13 This is the schematic diagram of the control gear circuit;

[0045] In the figure: 1 is the fan drive control board; 2 is the gear regulator; 3 is the remote control; 4 is the power supply circuit; 5 is the main control chip; 6 is the motor drive circuit; 7 is the safe operation detection circuit; 8 is the AC anti-interference circuit; 9 is the rectifier circuit; 10 is the first step-down circuit; 11 is the second step-down circuit; 12 is the gear adjustment circuit; 13 is the third step-down circuit; 14 is the control chip; 15 is the adjustment gear circuit; 16 is the indicator light circuit; 17 is the external device expansion port; 18 is the adjustment signal receiving circuit; 19 is the parameter data transmitting circuit; 20 is the remote control circuit; 21 is the remote control power supply circuit; 22 is the remote control chip; 23 is the wireless signal transmitting circuit; 24 is the wireless signal receiving circuit; 25 is the data storage circuit; 26 is the display connection port; 27 is the button circuit; 28 is the touch screen control circuit. [Specific implementation method]

[0046] The technical features of the present invention are further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can understand them.

[0047] A control system for a stove fan, such as Figures 1 to 13 As shown, it includes a fan drive control board 1 and a gear regulator 2, the fan drive control board 1 is electrically connected to the gear regulator 2, the fan drive control board 1 is provided with a power supply circuit 4, a main control chip 5, and a motor drive circuit 6, the gear regulator 2 is provided with a gear regulation circuit 12, the power supply circuit 4 is electrically connected to the main control chip 5, the motor drive circuit 6 and the gear regulation circuit 12, the main control chip 5 is electrically connected to the motor drive circuit 6, the gear regulation circuit 12 is electrically connected to the main control chip 5, the motor drive circuit 6 is electrically connected to the motor in the stove fan, and the gear regulation circuit 12 is associated with the fuel valve on the stove.

[0048] Specifically, the power supply circuit 4 includes an AC anti-interference circuit 8 for shielding electromagnetic interference, a rectifier circuit 9 for converting high-voltage alternating current into high-voltage direct current, a first step-down circuit 10 for converting high-voltage direct current into low-voltage direct current to power the motor drive circuit 6, and a second step-down circuit 11 for powering the main control chip 5. The gear regulator 2 is provided with a third step-down circuit 13 for powering the gear adjustment circuit 12. The first step-down circuit 10 is electrically connected to the rectifier circuit 9, and the second step-down circuit 11 and the third step-down circuit 13 are both electrically connected to the first step-down circuit 10.

[0049] Specifically, the rectifier circuit 9 includes a rectifier bridge BR1 and a polar capacitor C45, the positive electrode of the polar capacitor C45 is electrically connected to pin ① of the rectifier bridge BR1, and the negative electrode is electrically connected to pin ② of the rectifier bridge BR1, and pin ① of the rectifier bridge BR1 is a high-voltage DC output terminal DC+; the first step-down circuit 10 includes a power supply chip U2, pins ⑤, ⑥, ⑦, and ⑧ of the power supply chip U2 are all electrically connected to the positive electrode of the polar capacitor C45, in the first step-down circuit 10, a resistor R1 is connected in parallel with a capacitor C44, one end of the resistor R1 and the capacitor C44 is grounded, the other end of the resistor R1 and the capacitor C44 is electrically connected to one end of an inductor L4, and the electrical connection point is the output end of the first step-down circuit 10; the second step-down circuit 11 includes a step-down chip U5, pin ③ of the step-down chip U5 is electrically connected to the output end of the first step-down circuit 10 after being connected in series with the resistor R44, and one end of the capacitor C2 is electrically connected to the step-down chip Pin ③ of the step-down chip U5 is connected to ground, and the other end is grounded. Pin ② of the step-down chip U5 is grounded, and pin ① is electrically connected to one end of the capacitor C3. The other end of the capacitor C3 is grounded. Capacitor C4 is connected in parallel with the capacitor C3, and one end of the capacitor C4 is grounded, and the other end is the output end of the second step-down circuit 11. The third step-down circuit 13 includes a step-down chip U20, and pin ③ of the step-down chip U20 is connected in series with resistor R5 and then electrically connected to the output end of the first step-down circuit 10. Capacitor C41 and capacitor C42 are connected in parallel, and one end of the capacitor C41 and the capacitor C42 are grounded, and the other end is electrically connected to pin ③ of the step-down chip U20. Pin ② of the step-down chip U20 is grounded. Capacitor C43 and capacitor C44 are connected in parallel, and one end of the capacitor C43 and the capacitor C44 is grounded, and the other end is electrically connected to pin ① of the step-down chip U20. One end of the capacitor C44 electrically connected to pin ① of the step-down chip U20 is the output end of the third step-down circuit 13.

[0050] Specifically, the motor drive circuit 6 includes a drive chip U3, one end of a capacitor C9 is electrically connected to the output end of the first step-down circuit 10, and the other end is electrically connected to pin ① of the drive chip U3 and grounded, and pin ② of the drive chip U3 is connected in series with capacitor C30 and then electrically connected to pin ① of the wiring port P4, and pin ② of the drive chip U3 is ... The pin ① of the wiring port P4 is electrically connected to the pin ③ of the driver chip U3, which is connected in series with the capacitor C27 and then grounded. The pin ③ of the driver chip U3 is electrically connected to the output end of the first step-down circuit 10. The pin ④ of the driver chip U3 is connected in series with the resistor R5 and then electrically connected to the pin 4 of the main control chip 5. The pin ⑤ of the driver chip U3 is connected in series with a resistor R7 and then electrically connected to the pin of the main control chip 5. Pins ②, ③, ④, ⑤ and ③ of the driver chip U3 The control pin of the motor U terminal; the pins ⑦, ⑧, ⑨, ⑩ and ⑩ of the driver chip U3 The control pin of the motor V terminal; the pin of the driver chip U3 Pinout Pinout Pinout And the pin The control pin of the motor W end; the circuit connection structure of the control pin of the motor V end and the control pin of the motor W end in the motor drive circuit 6 is the same as the electrical connection structure of the control pin of the motor U end; the pin of the drive chip U3 The series capacitor C31 is grounded and electrically connected to the pin of the main control chip 5. The pins of the driver chip U3 is electrically connected to the high voltage DC output terminal DC+, the pin of the driver chip U3 The resistor RS2 and the resistor RS1 are connected in series and then grounded. The pin of the driver chip U3 The resistor RS3 and the resistor RS1 are connected in series and then grounded. The pin of the driver chip U3 The series resistor RS1 is connected to ground.

[0051] Specifically, the fan drive control board 1 is also provided with a safety operation detection circuit 7 for protecting the circuit from overcurrent and burning. The safety operation detection circuit 7 is electrically connected to the main control chip 5 and the motor drive circuit 6. The safety operation detection circuit 7 includes a comparator chip U4. Pin ① of the comparator chip U4 is electrically connected to pin ⑦ of the main control chip 5. Pin ② of the comparator chip U4 is connected in series with resistor R26 and then electrically connected to one end of resistor RS1 and resistor R20. The other end of the resistor R20 is connected in series with capacitor C19 and then grounded and connected to pin 2 of the main control chip 5. The pin ② of the comparator chip U4 is connected in series with the resistor R21 and then electrically connected to the pin ⑦ of the main control chip 5. The pin ③ of the comparator chip U4 is connected in series with the resistor R35 and then electrically connected to the pin 9 of the driver chip U3. The capacitor C34 is connected in series and is electrically connected to one end of the resistor R26. The pin ③ of the comparator chip U4 is also electrically connected to one end of the resistor R48 and the resistor R38. The other end of the resistor R48 is grounded, and the other end of the resistor R38 is electrically connected to the output end of the second step-down circuit 11. The pin ④ of the comparator chip U4 is grounded. The pin ⑤ of the comparator chip U4 is electrically connected to the resistor R50, the resistor R49, the resistor R36, and one end of the capacitor C32. The other end of the resistor R50 is grounded, the other end of the resistor R49 is electrically connected to the output end of the second step-down circuit 11, and the other end of the resistor R36 is electrically connected to the pin of the driver chip U3. Pin ⑥ of the comparator chip U4 is electrically connected to one end of the resistor R28, one end of the resistor R27 and the other end of the capacitor C32, the other end of R27 is electrically connected between the resistor R20 and the resistor RS1, the other end of the resistor R28 and pin ⑦ of the comparator chip U4 are both electrically connected to pin ⑥ of the main control chip 5, and pin ⑧ of the comparator chip U4 is electrically connected to the output end of the second step-down circuit 11 and connected in series with the capacitor C35 and then grounded.

[0052] Specifically, the gear adjustment circuit 12 includes a control chip 14, and multiple pins of the control chip 14 are electrically connected to multiple control gear circuits 15 respectively. The control chip 14 is also electrically connected to a magnetic control program burning port J2 for burning a control program, and a signal output port J1 for outputting a gear control signal. The main control chip 5 is electrically connected to a main control program burning port P2 for burning a control program, and a signal receiving port P3 for receiving a gear control signal, and the signal output port J1 is electrically connected to the signal receiving port P3.

[0053] Specifically, the control gear circuit 15 includes a magnetic control switch tube U15, pin ① of the magnetic control switch tube U15 is electrically connected to the output end of the third step-down circuit 13 and is connected in series with a capacitor C31 and then grounded, pin ② of the magnetic control switch tube U15 is grounded, and pin ③ is a trigger signal output end and is electrically connected to pin ③ of the control chip 14; the gear adjustment circuit 12 is provided with an indicator light circuit 16 and an external device expansion port 17, and the indicator light circuit 16 includes a light-emitting diode D34, and the positive electrode of the light-emitting diode D34 is connected in series with a resistor R64 and then electrically connected to the pin of the control chip 14 The cathode of the light emitting diode D34 is grounded, the pin ① of the external device expansion port 17 is grounded, and the pin ② is connected in series with a resistor R63 and then electrically connected to the pin of the control chip 14.

[0054] Specifically, the control system is also provided with a remote controller 3 for setting system parameters and adjusting the matching degree of different types of stoves and different fuels. The remote controller 3 is provided with a remote controller circuit 20, and the remote controller circuit 20 includes a remote controller power circuit 21, a remote control chip 22, a wireless signal transmitting circuit 23, a wireless signal receiving circuit 24, a data storage circuit 25, a display screen connection port 26 and a human-computer interaction module. The remote controller power circuit 21 is electrically connected to the remote control chip 22, and the remote control chip 22 is electrically connected to the wireless signal transmitting circuit 23, the wireless signal receiving circuit 24, the data storage circuit 25, the display screen connection port 26 and the human-computer interaction module; the remote controller circuit 20 and the gear adjustment circuit 12 exchange data through wireless signals, and the gear adjustment circuit 12 is provided with an adjustment signal receiving circuit 18 and a parameter data transmitting circuit 19 corresponding to the wireless signal transmitting circuit 23 and the wireless signal receiving circuit 24.

[0055] In addition, the human-computer interaction module is a key circuit 27 for adjusting system parameters through keys or a touch screen control circuit 28 for adjusting system parameters through a touch screen.

[0056] This patent also requests protection for a control method using the above control system, which is as follows:

[0057] After the control system for the stove fan is installed, it is necessary to debug the control system through the remote controller 3 according to the stove model and fuel type to find the best matching parameters between the fan air intake and the fuel input to ensure that the fuel can be fully burned and achieve the purpose of energy saving and environmental protection; the gear adjustment circuit 12 is associated with the fuel valve on the stove, and different gears in the gear adjustment circuit 12 correspond to different fuel inputs. The best matching parameters can be found by adjusting the motor speed of the corresponding gear, changing the fan air intake and observing the flame state;

[0058] The specific adjustment process of the best matching parameters is as follows:

[0059] The fuel valve on the stove is rotated to the 1st gear position, and the control gear circuit 15 corresponding to the 1st gear generates an induction signal;

[0060] The gear adjustment circuit 12 transmits the gear control signal to the main control chip 5, and the main control chip 5 controls the motor drive circuit 6 to work in the initial state;

[0061] The remote controller 3 controls the wireless signal transmitting circuit 23 to transmit the motor speed regulating signal, and the regulating signal receiving circuit 18 in the gear adjusting circuit 12 receives the motor speed regulating signal and transmits it to the main control chip 5. The main control chip 5 controls the motor driving circuit 6 to adjust the motor speed until the best matching state is reached, and the 1st gear adjustment is completed;

[0062] The adjustment process of the best matching parameters for other gears is the same as that for the 1st gear;

[0063] While the remote controller 3 adjusts the matching parameters, the main control chip 5 transmits the motor speed data of the corresponding gear to the gear adjustment circuit 12, and sends the data to the remote controller circuit 20 through the parameter data transmitting circuit 19, and the wireless signal receiving circuit 24 receives the parameter data and stores the data in the data storage circuit 25;

[0064] For stoves of the same model and using the same fuel, it is only necessary to copy and transmit the data of the best matching parameters in the data storage circuit 25 to the new control system through the remote controller 3;

[0065] The specific control process when the control system is used is as follows:

[0066] The fuel valve on the rotary stove adjusts the system gear position, and the control gear circuit 15 corresponding to the gear position generates an induction signal;

[0067] The gear adjustment circuit 12 transmits the gear control signal to the main control chip 5, and the main control chip 5 controls the motor drive circuit 6 to adjust the motor speed according to the best matching parameters;

[0068] When there is a blockage in the fan, the motor runs abnormally, and the driving current becomes larger. The safe operation detection circuit 7 transmits an abnormal signal to the main control chip 5, and the main control chip 5 controls the motor drive circuit 6 to stop running, thereby protecting the system safety and preventing the circuit from being burned by current overload;

[0069] Return the fuel valve on the stove to zero, and once the abnormality is resolved, restart the system to resume use.

[0070] The embodiments described in the present invention are merely descriptions of the preferred implementation modes of the present invention, and are not intended to limit the concept and scope of the invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solutions of the present invention by engineers and technicians in this field should all fall within the protection scope of the present invention.

Claims

1. A control system for a stove fan, characterized in that: The invention comprises a fan drive control board (1) and a gear regulator (2), wherein the fan drive control board (1) is electrically connected to the gear regulator (2), the fan drive control board (1) is provided with a power supply circuit (4), a main control chip (5), and a motor drive circuit (6), the gear regulator (2) is provided with a gear regulation circuit (12), the power supply circuit (4) is electrically connected to the main control chip (5), the motor drive circuit (6), and the gear regulation circuit (12), the main control chip (5) is electrically connected to the motor drive circuit (6), the gear regulation circuit (12) is electrically connected to the main control chip (5), the motor drive circuit (6) is electrically connected to the furnace The motor in the stove fan is electrically connected, the gear adjustment circuit (12) is associated with the fuel valve on the stove, and the control system is also provided with a remote controller (3) for setting system parameters and adjusting the matching degree of different types of stoves and different fuels. The remote controller (3) is provided with a remote controller circuit (20), and the remote controller circuit (20) includes a remote controller power circuit (21), a remote control chip (22), a wireless signal transmitting circuit (23), a wireless signal receiving circuit (24), a data storage circuit (25), a display screen connection port (26) and a human-computer interaction module. The remote controller power circuit (21) is electrically connected to the remote control chip (22), and the remote control chip (22) is electrically connected to the remote control chip (22). The wireless signal transmitting circuit (23), the wireless signal receiving circuit (24), the data storage circuit (25), the display screen connection port (26) and the human-machine interaction module are electrically connected; the human-machine interaction module is a key circuit (27) for adjusting system parameters by keys or a touch screen control circuit (28) for adjusting system parameters by touch screen; the remote control circuit (20) and the gear adjustment circuit (12) perform data exchange via wireless signals; the gear adjustment circuit (12) is provided with an adjustment signal receiving circuit (18) and a parameter data transmitting circuit (19) corresponding to the wireless signal transmitting circuit (23) and the wireless signal receiving circuit (24); The source circuit (4) comprises an AC anti-interference circuit (8) for shielding electromagnetic interference, a rectifier circuit (9) for converting high-voltage alternating current into high-voltage direct current, a first step-down circuit (10) for converting high-voltage direct current into low-voltage direct current to power the motor drive circuit (6), and a second step-down circuit (11) for powering the main control chip (5); the gear regulator (2) is provided with a third step-down circuit (13) for powering the gear regulation circuit (12); the first step-down circuit (10) is electrically connected to the rectifier circuit (9), and the second step-down circuit (11) and the third step-down circuit (13) are both electrically connected to the first step-down circuit (10);The rectifier circuit (9) comprises a rectifier bridge BR1 and a polar capacitor C45, wherein the positive electrode of the polar capacitor C45 is electrically connected to pin ① of the rectifier bridge BR1 and the negative electrode is electrically connected to pin ② of the rectifier bridge BR1, and pin ① of the rectifier bridge BR1 is a high-voltage direct current output terminal DC+; the first step-down circuit (10) comprises a power chip U2, and pins ⑤, ⑥, ⑦, and ⑧ of the power chip U2 are all electrically connected to the positive electrode of the polar capacitor C45. In the first step-down circuit (10), a resistor R1 is connected in parallel with the capacitor C44, and the resistor R1 is electrically connected to the capacitor C45. One end of the capacitor C44 is grounded, the other end of the resistor R1 and the capacitor C44 are electrically connected to one end of the inductor L4, and the electrical connection point is the output end of the first step-down circuit (10); the second step-down circuit (11) comprises a step-down chip U5, pin ③ of the step-down chip U5 is connected in series with the resistor R44 and then electrically connected to the output end of the first step-down circuit (10), one end of the capacitor C2 is electrically connected to pin ③ of the step-down chip U5 and the other end is grounded, pin ② of the step-down chip U5 is grounded, and pin ① is electrically connected to one end of the capacitor C3, the other end of the capacitor C3 is grounded, and the capacitor C4 is connected in parallel with the capacitor C3, one end of the capacitor C4 is grounded and the other end is the output end of the second step-down circuit (11); the third step-down circuit (13) comprises a step-down chip U20, pin ③ of the step-down chip U20 is connected in series with a resistor R5 and then electrically connected to the output end of the first step-down circuit (10), capacitors C41 and C42 are connected in parallel, one end of the capacitor C41 and the capacitor C42 is grounded and the other end is electrically connected to pin ③ of the step-down chip U20, pin ② of the step-down chip U20 is grounded, capacitors C43 and C44 are connected in parallel, and the capacitors C 43 and one end of the capacitor C44 are grounded, and the other end is electrically connected to pin ① of the buck chip U20, and the end of the capacitor C44 electrically connected to pin ① of the buck chip U20 is the output end of the third buck circuit (13); the motor drive circuit (6) includes a drive chip U3, one end of the capacitor C9 is electrically connected to the output end of the first buck circuit (10), and the other end is electrically connected to pin ① of the drive chip U3 and grounded, and pin ② of the drive chip U3 is connected in series with capacitor C30 and then electrically connected to pin ① of the wiring port P4, the pin of the drive chip U3; The pin ① of the wiring port P4 is electrically connected, the pin ③ of the driver chip U3 is connected in series with the capacitor C27 and then grounded, and the pin ③ of the driver chip U3 is electrically connected to the output end of the first step-down circuit (10), and the pin ④ of the driver chip U3 is connected in series with the resistor R5 and then electrically connected to the pin of the main control chip (5). Pin ⑤ of the driver chip U3 is connected in series with resistor R7 and then electrically connected to the pin of the main control chip (5). Pins ②, ③, ④, ⑤ and ③ of the driver chip U3 The control pin of the motor U terminal; the pins ⑦, ⑧, ⑨, ⑩ and ⑩ of the driver chip U3 The control pin of the motor V terminal; the pin of the driver chip U3 Pinout Pinout Pinout And the pin The control pin of the motor W end; the circuit connection structure of the control pin of the motor V end and the control pin of the motor W end in the motor drive circuit (6) is the same as the electrical connection structure of the control pin of the motor U end; the pin of the drive chip U3 The series capacitor C31 is then grounded and electrically connected to the pin of the main control chip (5). The pins of the driver chip U3 is electrically connected to the high voltage DC output terminal DC+, the pin of the driver chip U3 The resistor RS2 and the resistor RS1 are connected in series and then grounded. The pin of the driver chip U3 The resistor RS3 and the resistor RS1 are connected in series and then grounded. The pin of the driver chip U3 The series resistor RS1 is connected to ground.

2. The control system for a stove fan according to claim 1, characterized in that: The fan drive control board (1) is also provided with a safety operation detection circuit (7) for protecting the circuit from overcurrent and burning. The safety operation detection circuit (7) is electrically connected to the main control chip (5) and the motor drive circuit (6). The safety operation detection circuit (7) includes a comparator chip U4. Pin ① of the comparator chip U4 is electrically connected to pin ⑦ of the main control chip (5). Pin ② of the comparator chip U4 is connected in series with resistor R26 and then electrically connected to one end of resistor RS1 and resistor R20. The other end of the resistor R20 is connected in series with capacitor C19 and then grounded and connected to pin 2 of the main control chip (5). The pin ② of the comparator chip U4 is connected in series with the resistor R21 and then electrically connected to the pin ⑦ of the main control chip (5). The pin ③ of the comparator chip U4 is connected in series with the resistor R35 and then electrically connected to the pin 7 of the driver chip U3. The capacitor C34 is connected in series and is electrically connected to one end of the resistor R26. The pin ③ of the comparator chip U4 is also electrically connected to one end of the resistor R48 and the resistor R38. The other end of the resistor R48 is grounded and the other end of the resistor R38 is electrically connected to the output end of the second step-down circuit (11). The pin ④ of the comparator chip U4 is grounded. The pin ⑤ of the comparator chip U4 is electrically connected to the resistor R50, the resistor R49, the resistor R36 and one end of the capacitor C32. The other end of the resistor R50 is grounded and the other end of the resistor R49 is electrically connected to the output end of the second step-down circuit (11). The other end of the resistor R36 is electrically connected to the pin of the driver chip U3. Pin ⑥ of the comparator chip U4 is electrically connected to one end of the resistor R28, one end of the resistor R27 and the other end of the capacitor C32; the other end of R27 is electrically connected between the resistor R20 and the resistor RS1; the other end of the resistor R28 and pin ⑦ of the comparator chip U4 are both electrically connected to pin ⑥ of the main control chip (5); pin ⑧ of the comparator chip U4 is electrically connected to the output end of the second step-down circuit (11) and connected in series with the capacitor C35 and then grounded.

3. The control system for a stove fan according to claim 2, characterized in that: The gear adjustment circuit (12) comprises a control chip (14), a plurality of pins of the control chip (14) are respectively electrically connected to a plurality of gear adjustment circuits (15), the control chip (14) is also electrically connected to a magnetic control program burning port J2 for burning a control program, and a signal output port J1 for outputting a gear control signal, the main control chip (5) is electrically connected to a main control program burning port P2 for burning a control program, and a signal receiving port P3 for receiving a gear control signal, and the signal output port J1 is electrically connected to the signal receiving port P3.

4. The control system for a stove fan according to claim 3, characterized in that: The control gear circuit (15) comprises a magnetic control switch tube U15, wherein pin ① of the magnetic control switch tube U15 is electrically connected to the output end of the third step-down circuit (13) and is connected in series with a capacitor C31 and then grounded, pin ② of the magnetic control switch tube U15 is grounded, and pin ③ is a trigger signal output end and is electrically connected to pin ③ of the control chip (14); an indicator light circuit (16) and an external device expansion port (17) are provided in the gear position adjustment circuit (12), wherein the indicator light circuit (16) comprises a light emitting diode D34, wherein a positive electrode of the light emitting diode D34 is connected in series with a resistor R64 and then electrically connected to a pin of the control chip (14). The cathode of the light emitting diode D34 is grounded, the pin ① of the external device expansion port (17) is grounded, and the pin ② is connected in series with a resistor R63 and then electrically connected to the pin of the control chip (14). .

5. A control method using the control system according to claim 4, characterized in that: After the control system for the stove fan is installed, it is necessary to debug the control system through the remote controller (3) according to the stove model and the fuel type to find the best matching parameters between the fan air intake and the fuel input, so as to ensure that the fuel can be fully burned and achieve the purpose of energy saving and environmental protection; the gear adjustment circuit (12) is associated with the fuel valve on the stove, and different gears in the gear adjustment circuit (12) correspond to different fuel inputs. The best matching parameters can be found by adjusting the motor speed of the corresponding gear, changing the fan air intake and observing the flame state; The specific adjustment process of the best matching parameters is as follows: The fuel valve on the stove is rotated to the 1st gear position, and the control gear circuit (15) corresponding to the 1st gear generates an induction signal; The gear adjustment circuit (12) transmits the gear control signal to the main control chip (5), and the main control chip (5) controls the motor drive circuit (6) to operate in an initial state; The remote controller (3) controls the wireless signal transmitting circuit (23) to transmit a motor speed regulating signal, the regulating signal receiving circuit (18) in the gear regulating circuit (12) receives the motor speed regulating signal and transmits it to the main control chip (5), and the main control chip (5) controls the motor driving circuit (6) to regulate the motor speed until the best matching state is reached, and the first gear adjustment is completed; The adjustment process of the best matching parameters for other gears is the same as that for the 1st gear; While the remote controller (3) adjusts the matching parameters, the main control chip (5) transmits the motor speed data of the corresponding gear to the gear adjustment circuit (12), and sends the data to the remote controller circuit (20) through the parameter data transmission circuit (19), and the wireless signal receiving circuit (24) receives the parameter data and stores the data in the data storage circuit (25); For stoves of the same model and using the same type of fuel, it is only necessary to copy and transmit the data of the best matching parameters in the data storage circuit (25) to the new control system through the remote controller (3); The specific control process when the control system is used is as follows: The fuel valve on the rotary stove adjusts the system gear position, and the control gear circuit (15) corresponding to the gear position generates an induction signal; The gear adjustment circuit (12) transmits the gear control signal to the main control chip (5), and the main control chip (5) controls the motor drive circuit (6) to adjust the motor speed according to the best matching parameters; When there is a blockage in the fan, the motor runs abnormally, and the drive current increases. The safe operation detection circuit (7) transmits an abnormal signal to the main control chip (5), and the main control chip (5) controls the motor drive circuit (6) to stop running, thereby protecting the system safety and preventing the circuit from being burned due to current overload. Return the fuel valve on the stove to zero, and once the abnormality is resolved, restart the system to resume use.

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