The coolant-filled undershirt is connected to a cylindrical cooler through a tube, and when the switch is turned on, the undershirt starts cooling in three to five minutes, adjusting the temperature to 18 to 25 degrees Celsius. They are expected to be available to order online by September.
The "air conditioner" weighs 3.3 kilograms
The "air-conditioned undershirt" is developed by the 206th Institute of the Second Academy of China Aerospace Science and Industry using aerospace technology, and can be used for individual Cooling protective equipment - single soldier air conditioning system. It consists of an undershirt filled with coolant, a cylindrical refrigeration unit and a power supply.
206 researcher Zhang Xingzhou explained to the reporter "air-conditioning undershirt" principle of work: the refrigeration unit is a small refrigerator, when the personnel wearing an undershirt, undershirt in the back of the heart of the coolant absorbs the body's heat and then flowed to the refrigeration unit for cooling, cooling is completed and then enter the undershirt, thus bringing the human body a cool feeling. The refrigeration unit discharges the heat from the coolant to the outside environment.
This "air-conditioned undershirt" uses a compressor frequency adjustment system, the refrigeration unit installed on the knob, through the adjustment, you can adjust the temperature of the undershirt to 18 degrees Celsius to 25 degrees Celsius. Refrigeration unit weighs 4.6 pounds, equal to the weight of 4 bottles of mineral water, the vest weighs 1 pound, the power supply weighs 1 pound, "wear up relatively easy." An experiencer told reporters. Experience in the outdoor surface temperature of 37 degrees Celsius, wear "air conditioning vest", the surface temperature can be reduced to about 30 degrees Celsius.
Designed air-conditioned hats, shorts and finally selected undershirt
"In the second generation of 'air-conditioned undershirt' designed before the first generation of the undershirt. We even tried to design air-conditioned hats and air-conditioned shorts." Zhang Xingzhou said. In the end, the research and development team found that the undershirt is still a larger audience, but also easy to put on and take off, and at the same time check the information to understand that the torso is one of the main parts of the body's heat dissipation, and ultimately decided to use the style of the undershirt.
Air conditioning undershirt R & D team **** more than a dozen people, the first generation of "air conditioning undershirt" was designed, the refrigeration part alone weighs 8 pounds, the battery weighs 2.8 pounds. "Because the refrigeration unit at that time is relatively large, it needs to be carried on the back, and the projected selling price is about ten thousand yuan."
In order to allow more residents to enjoy lighter and more affordable civilian products with aerospace technology, the research and development team spent more than two years to let a number of staff members engaged in the firefighting and traffic police industries actually experience the product and collect feedback.
Some of the testers suggested they didn't want to take up space on their backs and shoulders because they also had to carry things. They loaded the front and back of the undershirt with coolant, leaving the shoulder area empty. "This allows users to not only carry things on their shoulders, but also meets the needs of some people whose shoulders don't want to be cooled."
The cylindrical design of the cooling unit was also the result of a "flash of insight" by the technical team. By observing various types of work in high-temperature environments, they found that workers often carry flashlights, water bottles and the like are cylindrical. "Cylindrical shapes fit either side of the human body, and in the end we decided to use a cylindrical shape."
Batteries can last 2 hours priced at 2,000-3,000 yuan
"At the same time, we also take more account of the fact that this is a piece of equipment for special industry workers to use in high-temperature environments, not daily clothing, and do not need to be continuously cooled like an air conditioner, in order to reduce the refrigeration unit Weight at the same time, also reduce the weight of the battery." Zhang Xingzhou introduction, the second generation of "air-conditioned undershirt" is currently equipped with two main batteries, about 1 pound of batteries can be used continuously for about 1 hour, 1 pound 6 two or so of batteries can be used continuously for about two hours. Batteries through an interface connected to the refrigeration unit, after the exhaustion of the power to replace the new battery can continue to use.
After many improvements, the production of the "air conditioning undershirt" price is also much cheaper, different specifications priced between 2000-3000 yuan, according to the number of orders, the battery capacity price is slightly different. This is often tens of thousands of prices than the price of LV fashion is much cheaper. "We will develop three more generations, and strive to further reduce costs, so that more residents can enjoy the fruits of civil-military integration." 206 Institute of Industrial Development Division Zhou Kai said. Zhang Xingzhou said, in the continued development of three generations of "air conditioning undershirt", will focus on improving the efficiency of the cooling unit, and strive to use less power, work longer.
Many products are first military and then civilian, I hope the public can enjoy the results of the integration of civil and military, aerospace technology can not only protect the country, but also benefit the people.