Wearable Semiconductor Cooling Vest with Quad TEC Modules – USB-C Powered Air-Conditioned Jacket for Outdoor Work & Summer Heat

The working principle of Peltier Effect-Based Wearable Cooling

1. The core principle of semiconductor refrigeration chips: Peltier Effect
   Semiconductor cooling sheets (also known as TEC sheets, full name Thermoelectric Cooler) are based on the Peltier effect, which is a phenomenon that occurs when an electric current is passed through the interface of different types of conductors or semiconductor materials.

When the current passes through the cooler:

Endothermic cooling

Heat transfer on the other side

By effectively managing the heat on both sides of the refrigeration sheet, the “cold end” can produce a significant cooling effect in a very short time.

How TEC chips are integrated in wearable devices
Structure levels generally include:
Skin layer (clothing fabric) : soft, breathable, skin-friendly and wear-resistant

TEC chip module layer: lightweight P/N type thermoelectric pair array package

Heat dissipation module (active fan or graphite heat conductive sheet) : helps the hot end to dissipate heat quickly and keep the cold end working continuously

Intelligent electronic control module: responsible for current control, temperature regulation, safety monitoring, etc

Power supply system: 5V/12V mobile power supply is common

Technical advantages and breakthrough points
Cooling without moving parts (compared to conventional compressor refrigeration)

No chemical refrigerant, no noise, no vibration

Small size, wearable, low energy consumption

Fast response: rapid cooling in 3-5 seconds after power-on

The latest generation of semiconductor refrigeration tablets have achieved lamination + flexible packaging, suitable for clothing, vests, insoles and other wearable structures, with intelligent temperature control technology to achieve accurate, adjustable personal cooling system.

Application Scenarios
High temperature working environment (construction, storage, transportation)

Daily outdoor activities (cycling, fishing, camping)

Medically assisted cooling (e.g. fever, rehabilitation)

High intensity heat load protection in military police/sports field

Future development direction: Integrated flexible battery + wearable intelligent control system

Current challenges and development direction
Heat dissipation efficiency bottleneck: Efficient removal of heat from the hot end is required to maintain cold end performance

Flexible compatibility: Flexible thermoelectric materials are being developed to adapt to the dynamic wearing of close-fitting clothing

Power consumption optimization: Reduce battery load for longer battery life

Overall weight balanced with comfort

✅ Summary:
The application of semiconductor refrigeration technology to wearable devices is a key direction of future individual cooling technology. By leveraging the Peltier effect, we can provide users with a portable, quiet, and green cooling experience without relying on traditional refrigerants or compressors. This technology is gradually moving towards mass production, and has shown great potential in the fields of smart wear, sports health, and extreme environment work.