How To Make A 12v Rechargeable Fan With Controller Made At Home

In the sweltering heat of summer, a rechargeable fan can be a lifesaver. But what if you could make one yourself at home? Not only would it be a fun DIY project, but it also allows you to customize the fan to your own needs and preferences. Here’s a comprehensive guide on how to create your own 12v rechargeable fan with a controller, right from the comfort of your home.

Materials List

12v DC motor
Fan blades
Rechargeable battery (preferably lithium-ion for longer life)
Systems for managing batteries (BMS) to ensure safe charging and discharging
Voltage regulator
Charging socket
On/off switch
Wires and connectors
Soldering iron and solder
Screwdriver and screws
Material for the frame: wood, plastic, or metal
PVC pipe (for the stand)

Preparing the Motor and Blades

Begin by attaching the fan blades securely to the DC motor shaft. If you’re repurposing blades from an old fan, make sure they fit the motor properly. Otherwise, you can 3D print or purchase suitable blades.

Assembling the Battery and Controller

Connect your rechargeable battery to the BMS. This is crucial for protecting the battery from overcharging and short-circuiting. Then, attach the voltage regulator to manage the power supply to the motor, ensuring a consistent fan speed.

Wiring the Components

Solder the wires to the motor, battery, and switch. Ensure that the connections are strong and insulated to prevent any electrical hazards. The charging socket should be connected to the BMS to allow for easy charging of the battery.

Building the Frame

Create a frame for your fan using the chosen materials. The frame should be sturdy enough to hold the motor and the battery securely. You can use a PVC pipe to make a stand or base for the fan, which can also serve as a handle.

Component List

IC NE555
1k resistor
DC mOTOR
12v battery
1ohm resistor
diode 1n4007 (3ps)
100k potentiometer
103pf ceramic capacitor
104pf ceramic capacitor
N-Channel MOSFET (IRFZ44N)

PDF download

Final Assembly

Screws are used to fasten the motor to the frame after mounting it. Attach the battery and controller in a convenient location on the frame where they won’t interfere with the fan’s operation. Make sure all components are securely fastened and that the fan is Balanced.

Testing

Once everything is assembled, it’s time to test your fan. Turn it on using the switch and observe the fan speed and airflow. Adjust the voltage regulator if necessary to achieve the desired fan speed.