"Deionized water is sealed inside the vapor chamber, which is laser-welded into the aluminum chassis to move heat away from the powerful A19 Pro, allowing it to operate at even higher performance levels. The heat is carried into the forged aluminum unibody, where it is distributed evenly through the system, managing power and surface temperatures to deliver incredible performance while remaining comfortable to hold."
"To assist with that dissipation, Apple connects the cooling part of the chamber to the unibody and battery plate, so that heat is lost more swiftly. Therefore, the hermetically sealed vapor chamber inside the new iPhone is essential to the cooling system. If you watched Apple's iPhone presentation earlier this month, you'll be aware the vapor chamber itself is very thin and relatively wide in terms of the scale of the device."
A hermetically sealed vapor chamber filled with deionized water removes heat from the A19 Pro. The chamber is laser-welded into the aluminum chassis and connected to the forged aluminum unibody and battery plate to transfer heat efficiently. Heat enters the unibody and is distributed evenly through the system, enabling controlled power delivery and managed surface temperatures. The vapor chamber's thin, relatively wide shape maximizes thermal performance within the phone's volume. That efficient thermal path allows the processor to sustain higher performance levels while keeping the device comfortable to hold. The connection to the battery plate accelerates heat loss across the device.
Read at Computerworld
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