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5G MOBILE PHONE HEAT DISSIPATION BRINGS NEW OPPORTUNITIES FOR THE PYROLYTIC GRAPHITE SHEET INDUSTRY

Views: 2     Author: Site Editor     Publish Time: 2019-03-19      Origin: Site

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Speaking of 5G heat dissipation, we have to mention smartphones. 5G phone chips will consume 2.5 times the power of current 4G modems, and more power consumption means 5G phones will use more sophisticated and advanced technology to control overheating. It is known that Qualcomm's 5G chip consumes 5.3w of power. If both lens and 3D sensing operation are included, the energy consumption of the whole mobile phone can reach 9.6w in an instant. The problem of heat dissipation cannot be solved without vapor chamber (VC) or heat pipes. In addition, it is estimated that the average annual marketing permeability of vapor chamber will exceed that of heat pipe in 2020. 

 

Manufacturer

Model

Thermal management solution

Vapor chamber

Huawei

Mate20 X 5G

Graphene film + vapor    chamber

Samsung

Glaxy S10 5G

Vapor chamber

ZTE

Axon 10 Pro 5G

Thermal phase change pad + heat pipe

×

Xiao’mi

MIX3 5G

Thermal phase change    pad

×

Vivo

APEX 2019

Vapor chamber

OPPO

Reno 5G

Heat pipe

×

 

According to theoretical data, the transmission rate of 5G can achieve 1Gb/s, which is more than 10 times faster than the current 4G speed. The larger data transmission capacity, faster transmission speed and improvement of computing speed of intelligent terminals will increase the power consumption of chips, and the heating capacity of core processors and other chips will increase significantly. For example, Huawei's rotating CEO, pointed out that Huawei's 5G chips currently consume 2.5 times more power than traditional 4G chips, which means 5G phones will need bigger batteries and more efficient cooling solution. In addition, China mobile launched last month “the intelligent hardware quality report of 2019” (Phase I), to evaluate the domestic several hot sale 5G smartphones. According to a report in 5G net, six tested mobile phones broadcast HD video online after 60 minutes, the surface temperature reached 36 to 38℃. Compared with its 4G smartphones, the average surface temperature increased and the high heat of 5G smartphones need continuously optimize. According to the technical characteristics of 5G with high rate and high computation, it is necessary to continuously enhance the improvement of local heat dissipation performance under pressure. 

At present, the main thermal conductive materials and methods of mobile phone include pyrolytic graphite sheet, thermal gel, heat pipe, thermal silicone pad, ice nest -- liquid metal cooler and metal back plate and frame cooler. As mentioned above, it is an inevitable trend that glass, ceramic and other new material casings will replace metal casings. However, the heat dissipation performance of these materials is not as good as that of metal casings. Therefore, the requirements for internal thermal conductivity devices of mobile phones will be further improved.

The growing demand for cooling products for 5G mobile phone terminals is expected to be a new driving force for the growth of related markets. According to Credence Research, the global thermal interface materials market will reach $1.711 billion in 2022 and the CAGR in 2015-2022 is 12%. According to Gartner's prediction, the unit price of thermal graphite for 5G mobile phones will be CNY8.9 in 2025, and the global market size of thermal conductive graphite for mobile phones will reach CNY16.3 billio. Among many thermal conductivity materials, graphite material has excellent thermal conductivity in terms of heat dissipation performance, and its horizontal thermal conductivity coefficient can be more than 4 times that of traditional thermal conductivity materials such as aluminum and copper, so as to realize fast and efficient heat transfer. From the perspective of cost, the maturity of synthetic graphite reduces the price of graphite and provides outstanding cost-performance advantage for thermal conductive graphite materials. Therefore, the future application prospect of thermal conductive materials based on graphite is very bright.  

 

With the development of thermal conductivity market, domestic industrial chain companies engaged in related businesses have also ushered in new growth opportunities. As the manufacturer of graphite thermal conductivity materials, Suzhou Dasen owns complete product lines and mature technology and established the products for the global market sales and service outlets, accumulated the high-quality customer resources. 

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