Air fryer PCBA

The PCBA (Printed Circuit Board Assembly) of the air fryer is its core control component, which is mainly responsible for the function realization and circuit connection of the whole machine. The following is an introduction from the aspects of function, composition, characteristics, etc.:

Core function

• Control heating and fan system: Accurately adjust the temperature of the heating tube and the speed of the fan to realize the air frying function of “high temperature hot air circulation” and simulate the frying effect.

• Operation logic processing: Respond to key/touch commands (such as temperature setting, timing, mode selection, etc.) and display the working status (such as the real-time temperature of the display).

• Safety protection: Integrated overload protection, overheating power-off and other circuits to avoid safety hazards caused by abnormal temperature or short circuit.

Main components

• Main control chip: core processor, storage control program, coordination of various components (such as controlling the heating time according to the preset program).

• Drive circuit: drive the heating tube, fan motor and other actuators to ensure that they operate according to instructions.

• Sensor module: includes temperature sensor (monitoring the temperature inside the pot), liquid level/gate sensor (detecting the opening and closing status of the pot lid), etc., and feeds back data to the main control chip in real time.

• Power management circuit: converts the input power into the voltage required by each component (such as 5V, 12V) to ensure stable power supply of the circuit.

• Interface components: such as relays, capacitors, resistors, etc., used for circuit connection and signal transmission.

Technical features

• High temperature resistant design: Because the internal temperature of the air fryer is high when it is working, PCBA needs to use high temperature resistant components and boards to avoid circuit aging.

• Waterproof and moisture-proof treatment: Some models need to cope with the steam environment during cooking, and may protect the circuit by applying three-proof paint (moisture-proof, salt spray-proof, and mildew-proof).

• Integration and miniaturization: In order to adapt to the compact body of the air fryer, PCBA often uses high-density mounting technology (such as SMT) to reduce the volume while improving reliability.

Application scenarios

• Home air fryer: realize intelligent temperature control and multi-mode cooking (such as preset programs for French fries, roast chicken, baking, etc.).

• Commercial kitchen equipment: PCBA of some large-capacity models may add power control modules to meet the needs of continuous operation.

In short, the PCBA of the air fryer is like the “brain” of the device. Through circuit integration and program control, the machine can realize efficient and safe cooking functions.