A wall-mounted fan adjusting control circuit and a wall-mounted fan

Abstract

The utility model relates to a kind of vehicle and ship wall hanging fan adjusting control circuit and vehicle and ship wall hanging fan, pin 6 of single-chip microcontroller is electrically connected with the one end of resistance R11 in motor three-gear speed control circuit by wire, pin 14 of single-chip microcontroller is electrically connected with the one end of resistance R13 in motor three-gear speed control circuit by wire, pin 9 of single-chip microcontroller is electrically connected with the pin 6 of chip in DC / DC step-down circuit by wire, pin 8 of single-chip microcontroller is electrically connected with connecting point D in timing indicator lamp display circuit by wire, pin 7 of single-chip microcontroller is electrically connected with connecting point C in timing indicator lamp display circuit by wire. Advantage: a kind of vehicle and ship wall hanging fan adjusting control circuit and vehicle and ship wall hanging fan not only use time is longer, and use cost is relatively lower.

Description

Technical Field

[0001] This utility model belongs to the field of fan manufacturing technology, specifically relating to a vehicle and ship wall-mounted fan adjustment and control circuit and a vehicle and ship wall-mounted fan. Background Technology

[0002] The applicant's prior patent CN 203939732 U, entitled "A Multi-purpose Fan," includes a bracket, a connecting shaft connected to the bracket, an outer cover mounted on the connecting shaft, a control panel connected to one side of the outer cover, a motor connected to the outer cover, a motor cover connected to the motor, a motor bushing fitted onto the motor cover, and fan blades connected to the motor bushing. The control panel contains a circuit board with batteries on both sides. A shock-absorbing pad is provided between the bracket and the connecting shaft, and a rotating shaft is fitted onto the shock-absorbing pad. Several foam pads are provided at the bottom of the bracket. A rotary switch is provided on the circuit board, and a knob cover is provided on the rotary switch. The number of fan blades is 5 to 9. The battery is a nickel-metal hydride battery. The motor is an RS540 motor. Its shortcomings are: this multi-purpose fan is powered by its own battery, and since the battery has a limited energy storage capacity, this limits the fan's usage time. Furthermore, battery power results in relatively high operating costs. Utility Model Content

[0003] Design objective: To overcome the shortcomings of the prior art, this design aims to create a vehicle / ship wall-mounted fan adjustment and control circuit and a vehicle / ship wall-mounted fan that not only has a longer service life and relatively lower operating cost, but also offers good safety and performance.

[0004] Design scheme: To achieve the above design objectives.

[0005] 1. In the speed and timing control circuit, pin 1 of the microcontroller is grounded via a wire, and pin 16 of the microcontroller is electrically connected to connection point D in the MCU power supply circuit via a wire. Pin 6 of the microcontroller is electrically connected to one end of resistor R11 in the three-speed motor control circuit via a wire. Pin 14 of the microcontroller is electrically connected to one end of resistor R13 in the three-speed motor control circuit via a wire. Pin 11 of the microcontroller is electrically connected to one end of resistor R15 in the three-speed motor control circuit via a wire. The design that pin 9 of the microcontroller is electrically connected to pin 6 of the chip in the DC / DC step-down circuit via a wire, pin 8 of the microcontroller is electrically connected to connection point D in the timing indicator display circuit via a wire, pin 7 of the microcontroller is electrically connected to connection point C in the timing indicator display circuit via a wire, pin 5 of the microcontroller is electrically connected to connection point B in the timing indicator display circuit via a wire, and pin 4 of the microcontroller is electrically connected to connection point A in the timing indicator display circuit via a wire is one of the technical features of this utility model. The purpose of this design is as follows: Pin 1 of the microcontroller in the speed and timing control circuit is grounded via a wire, and pin 16 of the microcontroller is electrically connected to connection point D in the MCU power supply circuit via a wire. Pin 6 of the microcontroller is electrically connected to one end of resistor R11 in the three-speed motor control circuit via a wire. Pin 14 of the microcontroller is electrically connected to one end of resistor R13 in the three-speed motor control circuit via a wire. Pin 11 of the microcontroller is electrically connected to one end of resistor R15 in the three-speed motor control circuit via a wire. Pin 9 of the microcontroller is electrically connected to pin 6 of the chip in the DC / DC step-down circuit via a wire. Pin 8 of the microcontroller is electrically connected to connection point D in the timing indicator display circuit via a wire. Pin 7 of the microcontroller... The microcontroller's pin 5 is electrically connected to connection point C in the timing indicator display circuit via a wire, and its pin 4 is electrically connected to connection point A in the same circuit. This vehicle / ship wall-mounted fan adjustment control circuit and the fan itself can be powered by the DC power supply of the vehicle or ship, i.e., by an external power source. This not only increases the operating time of the circuit and the fan but also reduces their operating cost. Furthermore, the circuit uses fewer components, thus controlling the production cost of the circuit and the fan.

[0006] 2. The output terminal of the three-terminal Zener diode, one end of capacitor C41, and one end of capacitor C42 in the MCU power supply circuit are electrically connected to connection point D in the MCU power supply circuit through wires. The input terminal of the three-terminal Zener diode is electrically connected to the positive terminal of capacitor C1 through wires. The negative terminal of capacitor C1, the common terminal of the three-terminal Zener diode, the other end of capacitor C41, and the other end of capacitor C42 are grounded through wires. The design that the input terminal of the three-terminal Zener diode is electrically connected to the positive terminal of capacitor C1, one end of capacitor C3, pin 7 of the chip, pin 8 of the chip, and the negative terminal of the diode in the DC / DC step-down circuit through wires is the second technical feature of this utility model. The purpose of this design is as follows: the output terminal of the three-terminal Zener diode, one end of capacitor C41, and one end of capacitor C42 in the MCU power supply circuit are electrically connected to connection point D in the MCU power supply circuit through wires. The input terminal of the three-terminal Zener diode is electrically connected to the positive terminal of capacitor C1 through wires. The negative terminal of capacitor C1, the common terminal of the three-terminal Zener diode, the other end of capacitor C41, and the other end of capacitor C42 are grounded through wires. The input terminal of the three-terminal Zener diode is electrically connected to the positive terminal of capacitor C1, one end of capacitor C3, pin 7 of the chip, pin 8 of the chip, and the negative terminal of the diode in the DC / DC step-down circuit through wires. This vehicle and ship wall-mounted fan adjustment and control circuit can achieve regulated power supply, thus ensuring the safety of the vehicle and ship wall-mounted fan adjustment and control circuit and the vehicle and ship wall-mounted fan.

[0007] 3. In the timing indicator display circuit, the negative terminals of LED 1 and LED 2 are electrically connected to connection point A via wires. The positive terminal of LED 1 is electrically connected to one end of resistor R151 via a wire, and the positive terminal of LED 2 is electrically connected to one end of resistor R152 via a wire. The other ends of resistors R151 and R152 are electrically connected to connection point A1 via wires. Connection point A1 in the timing indicator display circuit is electrically connected to connection point D in the MCU power supply circuit via a wire. In the timing indicator circuit, the negative terminals of LED 3 and LED 4 are electrically connected to connection point B via wires. The positive terminal of LED 3 is electrically connected to one end of resistor R153 via a wire, and the positive terminal of LED 4 is electrically connected to one end of resistor R154 via a wire. The other ends of resistors R153 and R154 are electrically connected to connection point B1 via wires. Connection point B1 in the timing indicator circuit is electrically connected to connection point D in the MCU power supply circuit via a wire. In the display circuit, the negative terminals of LED 5 and LED 6 are electrically connected to connection point C via wires. The positive terminal of LED 5 is electrically connected to one end of resistor R155 via a wire, and the positive terminal of LED 6 is electrically connected to one end of resistor R156 via a wire. The other ends of resistors R155 and R156 are electrically connected to connection point C1 via wires. Connection point C1 in the timing indicator display circuit is electrically connected to connection point D in the MCU power supply circuit via a wire. The negative terminals of LED 7 and LED 8 are electrically connected to connection point D via wires. The positive terminal of LED 7 is electrically connected to one end of resistor R157 via a wire, and the positive terminal of LED 8 is electrically connected to one end of resistor R158 via a wire. The other ends of resistor R157 and resistor R158 are electrically connected to connection point D1 via wires. The design that connection point D1 in the timing indicator display circuit is electrically connected to connection point D in the MCU power supply circuit via a wire is the third technical feature of this utility model.The purpose of this design is as follows: the negative terminals of LED 1 and LED 2 in the timing indicator display circuit are electrically connected to connection point A via wires; the positive terminal of LED 1 is electrically connected to one end of resistor R151 via a wire; the positive terminal of LED 2 is electrically connected to one end of resistor R152 via a wire; the other ends of resistors R151 and R152 are electrically connected to connection point A1 via wires; and connection point A1 in the timing indicator display circuit is electrically connected to connection point D in the MCU power supply circuit via a wire. The negative terminals of LED 3 and LED 4 are electrically connected to connection point B via wires. The positive terminal of LED 3 is electrically connected to one end of resistor R153 via a wire, and the positive terminal of LED 4 is electrically connected to one end of resistor R154 via a wire. The other ends of resistors R153 and R154 are electrically connected to connection point B1 via wires. Connection point B1 in the timing indicator display circuit is electrically connected to connection point D in the MCU power supply circuit via a wire. The negative terminals of LED 5 and LED 6 in the timing indicator display circuit are electrically connected to connection point D via wires. The positive terminals of LED 5 and LED 6 are electrically connected to connection point C via wires. The positive terminal of LED 5 is electrically connected to one end of resistor R155 via a wire. The positive terminal of LED 6 is electrically connected to one end of resistor R156 via a wire. The other ends of resistors R155 and R156 are electrically connected to connection point C1 via wires. Connection point C1 in the timing indicator circuit is electrically connected to connection point D in the MCU power supply circuit via a wire. The negative terminals of LED 7 and LED 8 in the timing indicator circuit are electrically connected to connection point D via wires. The positive terminal of LED 7 is electrically connected to one end of resistor R157 via a wire, and the positive terminal of LED 8 is electrically connected to one end of resistor R158 via a wire. The other ends of resistor R157 and resistor R158 are respectively electrically connected to connection point D1 via wires. Connection point D1 in the timing indicator circuit is electrically connected to connection point D in the MCU power supply circuit via a wire. Through light indication, the user can intuitively see the working status of the vehicle / boat wall-mounted fan adjustment control circuit and the vehicle / boat wall-mounted fan, thereby improving the usage effect of the vehicle / boat wall-mounted fan adjustment control circuit and the vehicle / boat wall-mounted fan.

[0008] 4. In the three-speed control circuit for the motor, the negative terminal of the fan motor is electrically connected to the drain terminal of the field-effect transistor M11, one end of resistor R18, and one end of resistor R17 via wires. The gate terminal of the field-effect transistor M11 is electrically connected to one end of resistor R12 and the other end of resistor R11 via wires. The source terminal of the field-effect transistor M11 and the other end of resistor R12 are grounded via wires. The other end of resistor R17 is electrically connected to the drain terminal of the field-effect transistor M12 via wires. The gate terminal of the field-effect transistor M12 is electrically connected to one end of resistor R14 and the other end of resistor R13 via wires. The source terminal of resistor R12 and the other end of resistor R14 are grounded through wires. The other end of resistor R18 is electrically connected to the drain terminal of field-effect transistor M13 through wires. The gate terminal of field-effect transistor M13 is electrically connected to one end of resistor R16 and the other end of resistor R15 through wires. The source terminal of field-effect transistor M13 and the other end of resistor R16 are grounded through wires. The design that the positive terminal of the fan motor is electrically connected to one end of resistor R1, one end of capacitor C4, one end of capacitor C5, the positive terminal of capacitor C2 and one end of inductor L1 in the DC / DC step-down circuit through wires is the fourth technical feature of this utility model. The purpose of this design is as follows: The negative terminal of the fan motor in the three-speed control circuit is electrically connected via wires to the drain terminal of the field-effect transistor M11, one end of resistor R18, and one end of resistor R17. The gate terminal of the field-effect transistor M11 is electrically connected via wires to one end of resistor R12 and the other end of resistor R11. The source terminal of the field-effect transistor M11 and the other end of resistor R12 are grounded via wires. The other end of resistor R17 is electrically connected via wires to the drain terminal of the field-effect transistor M12. The gate terminal of the field-effect transistor M12 is electrically connected via wires to one end of resistor R14 and the other end of resistor R13. The source terminal of the field-effect transistor M12 and the other end of resistor R14 are grounded via wires. The other end of resistor R18 is electrically connected to the drain terminal of field-effect transistor M13 via a wire. The gate terminal of field-effect transistor M13 is electrically connected to one end of resistor R16 and the other end of resistor R15 via wires. The source terminal of field-effect transistor M13 and the other end of resistor R16 are grounded via wires. The positive terminal of the fan motor is electrically connected to one end of resistor R1, one end of capacitor C4, one end of capacitor C5, the positive terminal of capacitor C2, and one end of inductor L1 in the DC / DC step-down circuit via wires. A vehicle and ship wall-mounted fan adjustment and control circuit and a vehicle and ship wall-mounted fan use field-effect transistors as electronic switches. Since field-effect transistors can quickly switch current channels, this improves the performance of the vehicle and ship wall-mounted fan adjustment and control circuit and the vehicle and ship wall-mounted fan.

[0009] Technical Solution 1: A vehicle / boat wall-mounted fan adjustment and control circuit, including a DC / DC step-down circuit, an MCU power supply circuit, a three-speed motor control circuit, a speed and timing control circuit, and a timing indicator display circuit. In the speed and timing control circuit, pin 1 of the microcontroller is grounded via a wire, and pin 16 of the microcontroller is electrically connected to connection point D in the MCU power supply circuit via a wire. Pin 6 of the microcontroller is electrically connected to one end of resistor R11 in the three-speed motor control circuit via a wire, and pin 14 of the microcontroller is electrically connected to one end of resistor R13 in the three-speed motor control circuit via a wire. Pin 11 of the microcontroller is electrically connected to one end of resistor R15 in the three-speed control circuit of the motor via a wire. Pin 9 of the microcontroller is electrically connected to pin 6 of the chip in the DC / DC step-down circuit via a wire. Pin 8 of the microcontroller is electrically connected to connection point D in the timing indicator display circuit via a wire. Pin 7 of the microcontroller is electrically connected to connection point C in the timing indicator display circuit via a wire. Pin 5 of the microcontroller is electrically connected to connection point B in the timing indicator display circuit via a wire. Pin 4 of the microcontroller is electrically connected to connection point A in the timing indicator display circuit via a wire.

[0010] Technical Solution 2: A vehicle / ship wall-mounted fan, comprising a wall-mounted fan body, wherein a control circuit board is provided inside the wall-mounted fan body, and a vehicle / ship wall-mounted fan adjustment control circuit is provided on the control circuit board.

[0011] Compared with the prior art, this utility model has two advantages: first, the adjustment and control circuit for a wall-mounted fan in a vehicle or boat and the wall-mounted fan itself not only have a longer service life but also relatively lower operating costs; second, the adjustment and control circuit for a wall-mounted fan in a vehicle or boat and the wall-mounted fan itself not only have good safety features but also good performance. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of a control circuit for a wall-mounted fan used in vehicles and ships.

[0013] Figure 2 This is a three-dimensional structural diagram of a wall-mounted fan for vehicles and ships. Detailed Implementation

[0014] Example 1: Refer to Appendix Figure 1A vehicle / boat wall-mounted fan adjustment and control circuit includes a DC / DC step-down circuit 10, an MCU power supply circuit 20, a three-speed motor control circuit 30, a speed and timing control circuit 40, and a timing indicator display circuit 50. In the speed and timing control circuit 40, pin 1 of the microcontroller is grounded via a wire, and pin 16 of the microcontroller is electrically connected to connection point D in the MCU power supply circuit 20 via a wire. Pin 6 of the microcontroller is electrically connected to one end of resistor R11 in the three-speed motor control circuit 30 via a wire, and pin 14 of the microcontroller is electrically connected to one end of resistor R13 in the three-speed motor control circuit 30 via a wire. Pin 11 of the microcontroller is electrically connected to one end of resistor R15 in the three-speed control circuit 30 of the motor via a wire. Pin 9 of the microcontroller is electrically connected to pin 6 of the chip in the DC / DC step-down circuit 10 via a wire. Pin 8 of the microcontroller is electrically connected to connection point D in the timing indicator display circuit 50 via a wire. Pin 7 of the microcontroller is electrically connected to connection point C in the timing indicator display circuit 50 via a wire. Pin 5 of the microcontroller is electrically connected to connection point B in the timing indicator display circuit 50 via a wire. Pin 4 of the microcontroller is electrically connected to connection point A in the timing indicator display circuit 50 via a wire.

[0015] The output terminal of the three-terminal Zener diode, one end of capacitor C41, and one end of capacitor C42 in the MCU power supply circuit 20 are electrically connected to connection point D in the MCU power supply circuit 20 through wires. The input terminal of the three-terminal Zener diode is electrically connected to the positive terminal of capacitor C1 through wires. The negative terminal of capacitor C1, the common terminal of the three-terminal Zener diode, the other end of capacitor C41, and the other end of capacitor C42 are grounded through wires. The input terminal of the three-terminal Zener diode is electrically connected to the positive terminal of capacitor C1, one end of capacitor C3, pin 7 of the chip, pin 8 of the chip, and the negative terminal of the diode in the DC / DC step-down circuit 10 through wires.

[0016] The negative terminals of LED 1 and LED 2 in the timing indicator display circuit 50 are electrically connected to connection point A via wires. The positive terminal of LED 1 is electrically connected to one end of resistor R151 via wires. The positive terminal of LED 2 is electrically connected to one end of resistor R152 via wires. The other ends of resistor R151 and resistor R152 are electrically connected to connection point A1 via wires. Connection point A1 in the timing indicator display circuit 50 is electrically connected to connection point D in the MCU power supply circuit 20 via wires. The negative terminals of LED 3 and LED 4 in the timing indicator display circuit 50 are electrically connected to connection point B via wires. The positive terminal of LED 3 is electrically connected to one end of resistor R153 via a wire. The positive terminal of LED 4 is electrically connected to one end of resistor R154 via a wire. The other ends of resistor R153 and resistor R154 are electrically connected to connection point B1 via wires. Connection point B1 in the timing indicator display circuit 50 is electrically connected to connection point D in the MCU power supply circuit 20 via a wire. The negative terminals of LED 5 and LED 6 in the timing indicator display circuit 50 are electrically connected to connection point C via wires. The positive terminal of LED 5 is electrically connected to one end of resistor R155 via a wire, and the positive terminal of LED 6 is electrically connected to one end of resistor R156 via a wire. The other ends of resistor R155 and resistor R156 are electrically connected to connection point C1 via wires. Connection point C1 in the timing indicator display circuit 50 is electrically connected to connection point D in the MCU power supply circuit 20 via a wire. The negative terminals of LED 7 and LED 8 in the timing indicator display circuit 50 are electrically connected to connection point D via wires. The positive terminal of LED 7 is electrically connected to one end of resistor R157 via a wire, and the positive terminal of LED 8 is electrically connected to one end of resistor R158 via a wire. The other ends of resistor R157 and resistor R158 are electrically connected to connection point D1 via wires. Connection point D1 in the timing indicator display circuit 50 is electrically connected to connection point D in the MCU power supply circuit 20 via a wire.

[0017] In the three-speed control circuit 30 for the motor, the negative terminal of the fan motor is electrically connected via wires to the drain terminal of the field-effect transistor M11, one end of resistor R18, and one end of resistor R17. The gate terminal of the field-effect transistor M11 is electrically connected via wires to one end of resistor R12 and the other end of resistor R11. The source terminal of the field-effect transistor M11 and the other end of resistor R12 are grounded via wires. The other end of resistor R17 is electrically connected to the drain terminal of the field-effect transistor M12 via a wire. The gate terminal of the field-effect transistor M12 is electrically connected via wires to one end of resistor R14 and the other end of resistor R13. The source terminal of the field-effect transistor M12 and the other end of the resistor R14 are grounded through wires. The other end of the resistor R18 is electrically connected to the drain terminal of the field-effect transistor M13 through a wire. The gate terminal of the field-effect transistor M13 is electrically connected to one end of the resistor R16 and the other end of the resistor R15 through wires. The source terminal of the field-effect transistor M13 and the other end of the resistor R16 are grounded through wires. The positive terminal of the fan motor is electrically connected to one end of the resistor R1, one end of the capacitor C4, one end of the capacitor C5, the positive terminal of the capacitor C2, and one end of the inductor L1 in the DC / DC step-down circuit 10 through wires.

[0018] In the DC / DC step-down circuit 10, pin 4 of the chip is electrically connected to the other end of resistor R1, the other end of capacitor C4, and one end of resistor R2 via wires. The other end of inductor L1 is electrically connected to pin 1 of the chip, pin 2 of the chip, and the negative terminal of diode D0 via wires. Pin 3 of the chip, the positive terminal of diode D0, the negative terminal of capacitor C2, the other end of capacitor C5, and the other end of resistor R2 are grounded via wires. Pin 5 of the chip is electrically connected to one end of resistor R3 via a wire, and the other end of resistor R3 is grounded via a wire. The negative terminal of capacitor C1 and the other end of capacitor C3 are grounded via wires. The microcontroller is a CMS79FT613.

[0019] Example 2: Based on Example 1, refer to Appendix Figure 2 A wall-mounted fan for vehicles and ships includes a wall-mounted fan body, wherein a control circuit board is provided inside the wall-mounted fan body, and the control circuit board is provided with a vehicle / ship wall-mounted fan adjustment control circuit.

[0020] It should be understood that although the above embodiments provide a relatively detailed textual description of the design concept of this utility model, these textual descriptions are merely simple textual descriptions of the design concept of this utility model, and not limitations on the design concept of this utility model. Any combination, addition, or modification that does not exceed the design concept of this utility model shall fall within the protection scope of this utility model.

Claims

1. A vehicle / boat wall-mounted fan adjustment and control circuit, comprising a DC / DC step-down circuit (10), an MCU power supply circuit (20), a three-speed motor control circuit (30), a speed and timing control circuit (40), and a timing indicator display circuit (50), characterized in that: In the speed and timing control circuit (40), pin 1 of the microcontroller is grounded via a wire, and pin 16 of the microcontroller is electrically connected to connection point D in the MCU power supply circuit (20) via a wire. Pin 6 of the microcontroller is electrically connected to one end of resistor R11 in the motor three-speed control circuit (30) via a wire. Pin 14 of the microcontroller is electrically connected to one end of resistor R13 in the motor three-speed control circuit (30) via a wire. Pin 11 of the microcontroller is electrically connected to one end of resistor R15 in the motor three-speed control circuit (30) via a wire. The microcontroller's pin 9 is electrically connected to the chip's pin 6 in the DC / DC step-down circuit (10) via a wire. The microcontroller's pin 8 is electrically connected to the connection point D in the timing indicator display circuit (50) via a wire. The microcontroller's pin 7 is electrically connected to the connection point C in the timing indicator display circuit (50) via a wire. The microcontroller's pin 5 is electrically connected to the connection point B in the timing indicator display circuit (50) via a wire. The microcontroller's pin 4 is electrically connected to the connection point A in the timing indicator display circuit (50) via a wire.

2. The vehicle / ship wall-mounted fan adjustment and control circuit according to claim 1, characterized in that: The output terminal of the three-terminal Zener diode, one end of capacitor C41 and one end of capacitor C42 in the MCU power supply circuit (20) are electrically connected to the connection point D in the MCU power supply circuit (20) through wires. The input terminal of the three-terminal Zener diode is electrically connected to the positive terminal of capacitor C1 through wires. The negative terminal of capacitor C1, the common terminal of the three-terminal Zener diode, the other end of capacitor C41 and the other end of capacitor C42 are grounded through wires. The input terminal of the three-terminal Zener diode is electrically connected to the positive terminal of capacitor C1, one end of capacitor C3, pin 7 of the chip, pin 8 of the chip and the negative terminal of diode in the DC / DC step-down circuit (10) through wires.

3. The vehicle / ship wall-mounted fan adjustment and control circuit according to claim 1, characterized in that: The negative terminals of LED 1 and LED 2 in the timing indicator display circuit (50) are electrically connected to connection point A via wires. The positive terminal of LED 1 is electrically connected to one end of resistor R151 via wires. The positive terminal of LED 2 is electrically connected to one end of resistor R152 via wires. The other ends of resistor R151 and resistor R152 are electrically connected to connection point A1 via wires. Connection point A1 in the timing indicator display circuit (50) is electrically connected to connection point D in the MCU power supply circuit (20) via wires. The negative terminals of LED 3 and LED 4 in the timing indicator display circuit (50) are electrically connected to connection point B via wires. The positive terminal of LED 3 is electrically connected to one end of resistor R153 via wires. The positive terminal of LED 4 is electrically connected to one end of resistor R154 via wires. The other ends of resistor R153 and resistor R154 are electrically connected to connection point B1 via wires. Connection point B1 in the timing indicator display circuit (50) is electrically connected to connection point D in the MCU power supply circuit (20) via wires. The negative terminals of LED 5 and LED 6 in the timing indicator display circuit (50) are electrically connected to connection point C via wires. The positive terminal of LED 5 is electrically connected to one end of resistor R155 via wires. The positive terminal of LED 6 is electrically connected to one end of resistor R156 via wires. The other ends of resistor R155 and resistor R156 are electrically connected to connection point C1 via wires. Connection point C1 in the timing indicator display circuit (50) is electrically connected to connection point D in the MCU power supply circuit (20) via wires. The negative terminals of LED 7 and LED 8 in the timing indicator display circuit (50) are electrically connected to connection point D via wires. The positive terminal of LED 7 is electrically connected to one end of resistor R157 via wires. The positive terminal of LED 8 is electrically connected to one end of resistor R158 via wires. The other ends of resistor R157 and resistor R158 are electrically connected to connection point D1 via wires. Connection point D1 in the timing indicator display circuit (50) is electrically connected to connection point D in the MCU power supply circuit (20) via wires.

4. The vehicle / ship wall-mounted fan adjustment and control circuit according to claim 1, characterized in that: In the three-speed control circuit (30) for the motor, the negative terminal of the fan motor is electrically connected to the drain terminal of the field-effect transistor M11, one end of resistor R18, and one end of resistor R17 via wires. The gate terminal of the field-effect transistor M11 is electrically connected to one end of resistor R12 and the other end of resistor R11 via wires. The source terminal of the field-effect transistor M11 and the other end of resistor R12 are grounded via wires. The other end of resistor R17 is electrically connected to the drain terminal of the field-effect transistor M12 via wires. The gate terminal of the field-effect transistor M12 is electrically connected to one end of resistor R14 and the other end of resistor R13 via wires. The source terminal of the field-effect transistor M12 and the other end of the resistor R14 are grounded through wires. The other end of the resistor R18 is electrically connected to the drain terminal of the field-effect transistor M13 through wires. The gate terminal of the field-effect transistor M13 is electrically connected to one end of the resistor R16 and the other end of the resistor R15 through wires. The source terminal of the field-effect transistor M13 and the other end of the resistor R16 are grounded through wires. The positive terminal of the fan motor is electrically connected to one end of the resistor R1, one end of the capacitor C4, one end of the capacitor C5, the positive terminal of the capacitor C2 and one end of the inductor L1 in the DC / DC step-down circuit (10) through wires.

5. The vehicle / ship wall-mounted fan adjustment and control circuit according to claim 1, characterized in that: In the DC / DC step-down circuit (10), the chip's pin 4 is electrically connected to the other end of resistor R1, the other end of capacitor C4, and one end of resistor R2 via wires. The other end of inductor L1 is electrically connected to the chip's pin 1, the chip's pin 2, and the negative terminal of diode D0 via wires. The chip's pin 3, the positive terminal of diode D0, the negative terminal of capacitor C2, the other end of capacitor C5, and the other end of resistor R2 are grounded via wires. The chip's pin 5 is electrically connected to one end of resistor R3 via wires, and the other end of resistor R3 is grounded via wires. The negative terminal of capacitor C1 and the other end of capacitor C3 are grounded via wires.

6. The vehicle / ship wall-mounted fan adjustment and control circuit according to claim 1, characterized in that: The microcontroller is a CMS79FT613.

7. A wall-mounted fan for vehicles and ships, comprising a wall-mounted fan body, wherein a control circuit board is disposed within the wall-mounted fan body, characterized in that: The control circuit board is provided with a vehicle / ship wall-mounted fan adjustment control circuit as described in any one of claims 1-6.

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