Ice breaker wears the body cool, beating the hot sun

This compact band is used as a 'portable air conditioner', which adjusts your skin temperature to an ideal level anywhere, regardless of the hot sun.

According to Science Advances magazine, a team of engineers at the University of California San Diego (USA) invented a device that is wearable, cool or fast heating technology for users . Get energy from batteries, stretchable tapes with thermoelectric alloy circuit boards - materials that use electricity to create temperature differences and vice versa - will adjust the user's body temperature to the desired level .

Armband with battery (left) and thermoelectric circuit board (middle) with cooling / heating pads (right).(Photo: UC San Diego).

In addition, its flexible and compact design is also easy to integrate into clothing as well as providing a comfortable feel when worn. You can wear it on parts that tend to heat up or lose heat quickly on your body, such as your back, neck, feet or arms.

According to scientists, this bandage can reduce the need to use cooling and air conditioning cooling, meaning saving electricity. Lead researcher is Renkun Chen, Professor of Engineering and Space Engineering at UC San Diego Jacobs School of Engineering.

Mr. Chen affirmed: 'This device can help you feel comfortable whether you are moving on the road during a hot day or feeling too cold at your office. You won't need to lower your summer air conditioner or increase your heating in winter anymore. '

For example, to maintain the temperature of a building higher than 12 degrees Celsius in the summer can save cooling costs by about 70%.

After testing a volunteer's armband in a temperature-controlled environment, the researchers found a bandage that cooled the man's skin to a set temperature of 32 degrees Celsius within 2 minutes. . This device also maintains the skin temperature of the wearer at a stable level while the ambient temperature is adjusted to range from 22 to 36 degrees Celsius.

The team said their ultimate goal was to unify many of these tapes to create an individual air-conditioning fabric. They hope to introduce their products to the market in the next few years.