500,000 folds without worry! Xiaomi MIX Fold 4 is fully upgraded with keel hinge 2.0: the volume is reduced by 34%

According to news on July 19, at the new product launch conference tonight, Lei Jun said that the Xiaomi MIX Fold 4 mobile phone has been fully upgraded to Keel hinge 2.0, which can achieve 500,000 folds without worry.

According to reports, Xiaomi Keel Spindle 2.0 has achieved a comprehensive upgrade in design and performance, while reducing the size and weight while ensuring the durability and reliability of the device.

The number of design parts has been reduced from 198 to 137, and the overall structure has been significantly simplified, improving the reliability of the shaft and reducing production difficulty.

The reduction in the number of parts also means a reduction in potential failure points, which is crucial to improving the durability of foldable screen phones.

In terms of thinness and lightness, the width of the keel shaft 2.0 is reduced from 24mm to 18.8mm, the thickness is reduced from 2.9mm to 2.3mm, the shaft volume is reduced by 34%, and the weight is reduced by 16%.

The precision craftsmanship of the rotating shaft has also reached a new height. The cam diameter is only 1.8 mm, but it accommodates 11 precision tooth structures, and the parts matching accuracy reaches 0.01mm.

In addition, the proportion of super-strong steel used in the shaft is 82.57%, which has been greatly improved compared to the 26.4% of the previous generation. The strength of this material is as high as 1800MPa, providing unprecedented sturdiness for the shaft. and reliability.

The three-level connecting rod structure of Xiaomi MIX Fold 4 has been completely reconstructed. Each connecting rod is significantly smaller than the previous generation. The first level is shortened by 8%, the second level is shortened by 28%, and the third level is shortened by 26%, making the rotating shaft Wrapping the slim droplet structure more tightly.

This combination of miniaturization and performance guarantee allows MIX Fold 4 to reduce the overall size while maintaining excellent folding feel and hovering performance.

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