[Mobile China News] On July 1, there are only three days before the release of the Xiaomi Mi 12S series. Xiaomi has been constantly revealing news about the Xiaomi Mi 12S on Weibo recently, and Lei Jun also personally went to answer questions.

[ mobile phone China news] July 1st, only 3 days before the release of Xiaomi 12S series, Xiaomi has been continuously revealing news about Xiaomi 12S on Weibo recently, and Lei Jun also personally went out to answer questions. Today, Xiaomi officially announced that the Xiaomi Mi 12S Ultra is officially equipped with a new generation of mobile phone cooling technology - Ye Vein Cold Pump, which replaces the traditional VC internal copper mesh network with a high-speed return channel, allowing the cold liquid return to change from disorder to order. Low speed changes to high speed. It not only improves the thermal conductivity efficiency, but also prevents the burn-out failure caused by the traditional VC water return capability.

At the same time, Lei Jun posted a video of a leaf vein cold pump on Weibo, which shows that the thermal conductivity has been greatly improved. It is reported that this heat dissipation technology is inspired by nature. Xiaomi thermal design engineers referred to the water absorption method of plant leaf veins and exquisitely designed special liquid return channels inside the vein cold pump. Like a high-speed lane, the condensed liquid will continuously flow out. "Pumping" from the cold end to the hot end changes the previous disorderly return flow into orderly high-speed transportation, greatly increasing the cold liquid circulation speed, and the thermal conductivity is 100% higher than that of VC vapor chamber.

VC The inside of the vapor chamber is an approximate vacuum cavity. The liquid at the hot end vaporizes and absorbs heat, floats to the cold end and condenses into a liquid to release heat. It flows back to the hot end under the capillary action of and , through the cycle of gas-liquid conversion. Quickly conduct heat transfer . However, the capillary structure inside the VC is usually a mesh network similar to a "screen window", and the return flow is relatively disordered, just like an intersection without traffic lights. The passing efficiency is very low and can easily lead to insufficient water return capacity and burn-out failure.