Patent ID: 9175887
Filing Date: 2015-11-03
Classification: A41D,A42B,F25B

Abstract:
1. An air conditioned headgear comprising: a heat sink exposed out of the headgear; a thermoelectric cooling module comprising a cooling surface, a heating surface, and a conduction cooling element, wherein, the cooling surface and the conduction cooling element are arranged in an interior of the headgear, the heating surface is connected to the heat sink; and a control circuit comprising a power supply circuit, a first temperature sensor, a second temperature sensor, a third temperature sensor, and a microcontroller, wherein, the power supply circuit is to supply driving current to the thermoelectric cooling module, the first temperature sensor is to sense the inner temperature of the headgear, the second temperature sensor is to sense the temperature of the heat sink, the third temperature sensor is to sense the environmental temperature, the microcontroller is to control the power supply circuit to provide the driving current to the thermoelectric cooling module via processing the inner temperature of the headgear, a preset temperature, the temperature of the heat sink, and the environmental temperature using proportional-integral-differential control.