Xiaomi Mix Fold 2 Hinge Design
A day after the launch of Galaxy Z Flip4 and Fold 4, Xiaomi Mix Fold2 was officially released. As a new generation of Xiaomi folding screen flagship, the machine not only makes up for the shortcomings of the previous generation but also in the body thickness, screen quality, and other aspects are industry’s top.
Folding screen to be a good phone first, and then a folding phone, this statement is easy to say and difficult to do. At Xiaomi Mix Fold 2 launch said to let the folding screen into the last mile of practical, is essentially dancing in shackles, in material, technology, and engineering to achieve a combination of factors, so that Xiaomi Mix Fold 2 thickness and weight are as close as possible to the ordinary straight phone.
Xiaomi Mix Fold 2 (Review) thickness is 11.2mm, just 2mm thicker than Xiaomi 12S Ultra, unfolded single-sided thickness of 5.4mm, and the weight is only 262g. Xiaomi Mix Fold 2 can be so thin and light because of Xiaomi’s research integration of micro water drop form hinge inseparable. Here is Xiaomi Mix Fold 2 hinge design technology and the secret to a thin and light build.
First, the Self-initiated integrated micro-drop form hinge, the core of the breakthrough of thin and light.
The structure and thickness of the hinge largely determine how low the folding screen can go down. Its thinness and miniaturization must also be the future development trend of folding screen phones have become clear.
The appearance and results of the thin and light feel, from the internal body to make substantial innovation. To be more precise, the core of the breakthrough of the thin and light folding screen is the Xiaomi Mix Fold 2 hinge design.
To make the hinge further thin and light miniaturization, we must further improve the existing integration to achieve a more integrated spindle design.
Xiaomi Mix Fold 2 is equipped with the third generation of Xiaomi’s self-developed pivot technology “micro-drop form pivot”, which is the first time in the industry to break through the original thickness and width limits of the pivot. This more advanced and innovative design will lead the folding screen pivot design into the next era.
The biggest change in the integrated micro drop shape hinge is the word “micro” compared to the previous hinge technology, and it stands for thinner and lighter. The thickness and weight of the spindle largely determine how much the thickness and weight of the whole machine can be reduced.
The biggest secret to making the hinge lighter and thinner comes from the significant increase in integration. The design of the folding screen’s hinge is a bridge between the left and right parts so that the original rift between the two sides of the road becomes open. So this bridge is designed to be a device of immense precision – even redundant.
Across the industry, the number of pivot parts currently averages around 150, and some even go up to 200+. But the more parts the better, and the more parts are often prone to problems. The Xiaomi Mix Fold 2 cleverly simplifies the redundant structure and removes all the welding points, dispelling the myth that more parts are more high-end. The final Xiaomi Mix Fold 2’s micro-drop form pivot reduces the number of pivots to 87 and increases the level of integration significantly.
Second, integrated precision process, zero welding point carbon fiber biplane floating plate.
In the subtleties, Xiaomi Mix Fold 2 adopts the strategy of adapting to local conditions, using materials with different characteristics in different parts. For example, MIM super steel is used on the track bar, while super wear-resistant steel is used on the cam part to ensure that each part remains durable enough every time it is folded or unfolded.
Further focus, more secrets come from the structure and materials. From the middle of the “keel” part to see, to maintain the flatness and sturdiness with high-strength metal. The “wings” that seem to grow out from both sides become part of the secondary linkage, which has to be thin and light to reduce weight for the whole machine, but also has to have extremely high tensile strength because it is driven by the folding screen every time.
Xiaomi Mix Fold 2 for the first time using the high-strength one-piece carbon fiber floating plate. Highly integrated design, so that the two wings of the floating plate of carbon fiber projection area of up to 92%. The carbon fiber material, currently used in very high-end products such as ultra-light sports cars, can reach nearly 7 times the tensile strength with only 1/5 the weight of ordinary steel.
The result is a 20-30% reduction in thickness compared to the industry’s 11 or 12mm or more, and a weight reduction of about 35%. With the extremely high level of integration and simplified redundant structure, the Xiaomi Mix Fold 2 hinge design is not only thinner and lighter but also more reliable and sturdy.
