On August 13,2024, Tesla CEO Elon Musk and former US President and Republican presidential candidate Donald Trump held a live conversation, which was watched by about 2 million people online. In the live broadcast lasting more than two hours, Trump took out a magnetic charging bank of Chinese brand Anker to charge his mobile phone, which triggered hot discussions at home and abroad. Netizens began to snap up the same products on major e-commerce platforms. Affected by the news, on August 13, Anker’s stock rose rapidly, and even rose by the daily limit, causing widespread concern in the market.
It is reported that the charging bank used by Trump is Anker MagGo series, model A1654, with a single USB-C interface, supporting 20W input and 27W output, magnetic wireless charging supports 15W power, 10000mAh capacity balance battery life and volume, portable and practical.
On August 15,2024, the dismantling report of Trump’s same power bank has released. Open the shell along the side joint of the fuselage, and you can see that there is a graphite thermal conductive tape and an aerogel inside the shell.
On June 2023, Anker’s other charging bank has also been dismantled — 20000mAh 20W fast charging mobile power supply and found that a layer of graphite heat transfer paste was pasted under the PCBA module, and aerogel heat insulation was pasted under the graphite heat transfer paste to avoid high local temperature.
Electronic equipment and some related charging accessories will be accompanied by heat when working. If the heat problem is not solved, the performance cannot be fully played, and the heavy may fail, or even burn and explode, which poses a threat to the personal and property safety of the majority of users, so this has been a problem of great concern to the upstream and downstream industry chain.
To solve the heating throughout the whole process of the birth of a product, chip manufacturers can reduce the temperature rise by improving the design process or improving the efficiency of the scheme architecture. In addition, heat accumulation can be avoided by leaving enough space for the interior, and thermal gel, thermal pad, heat sink can be filled between the devices and on the chip, and graphite heat dissipation stickers and aerogel stickers can be affixed to the shell to better transfer heat and cool down.
Open the product shell, the PCB board is arranged in the upper end area, which is also the main internal heating area, and the corresponding area of the right shell is affixed with aerogel stickers and has been insulated treatment.
The other half of the battery shell is pasted with graphite thermal conductivity stickers.
Tear off the graphite heat transfer sticker, and you can see that there is also an aerogel sticker under it. Through the actual test, it was found that the body temperature on the body surface of the product was reduced by more than 5℃ after pasting the aerogel paste on the product shell, which better played the product performance and improved the user experience.
Aerogel can solve the problem of thermal insulation in the narrow space of electronic products, and provide thermal insulation protection for weak heat-resistant components, thereby improving the performance and service life of electronic products, and further improving the comfort of human body.
