Thermal solution for car computer
Car computer introduction:
In-vehicle computer is also called in-vehicle tablet computer, in-vehicle computer system.
The on-board computer is an automotive information product specially developed for the special operating environment of the car and the characteristics of the electrical circuit, which has the functions of high temperature resistance, dust resistance and shock resistance, and can be integrated with the automotive electronic circuit. It is a highly integrated automotive multimedia entertainment information center. It can realize all home computer functions, support in-car Internet access, audio and video entertainment, satellite positioning, voice navigation, games, telephone and other functions, and can also realize specific functions such as visual reversing and fault detection.

The vehicle display control system is the most important device to provide the driver with the required information. With the emergence of new human-vehicle interaction concepts such as head-up display and rear-seat in-vehicle entertainment display system and the demand for consumption upgrades, the overall vehicle display market has maintained a relatively high growth rate. Especially in the context of the trend of intelligent and visual development of automobiles, the vehicle display control system must not only satisfy various display effects such as text, pictures, audio/video, etc., but also need to introduce the Internet of Vehicles, artificial intelligence, big data, etc. To meet intelligent functions such as instant information release, voice interaction, communication, and precise navigation, a professional, reliable and highly integrated hardware platform must provide basic support to realize this series of functions.

From the perspective of technical requirements, in-vehicle display computer control systems mostly use industrial tablet computers as their hardware carriers. Because it is known for its performance stability, and its integrated processing capability is better than that of ordinary tablet computers, it supports the expansion of a variety of intelligent scene applications, so it is deeply concerned and sought after by customers in the industry. In terms of function, industrial tablet PCs mostly use low-power high-performance processors, which have the characteristics of dustproof, waterproof, shock resistance, compression resistance, high temperature resistance, low temperature resistance, etc., which can maximize the program to meet the product development needs of customers at different levels.
With the development of science and technology, the vehicle display computer control system is not only widely used in the field of vehicle display control, but also in industrial automation, intelligent transportation, intelligent buildings, financial information processing, outdoor advertising and so on. In order to better optimize the user experience, the on-board computer control system is constantly evolving. However, while improving the function, an effective cooling solution must be adopted to maintain a stable temperature and ensure work efficiency.

Glue requirements for car computer:
- High bonding strength to the chassis frame;
- Excellent heat dissipation for heating components;
- Environmental protection, non-toxic, with testing certification and qualifications;
- Moisture-proof, anti-static, dust-proof, mildew-proof, salt spray resistance, etc. for circuit boards;
- It has the characteristics of dustproof, waterproof, shock resistance, compression resistance, high temperature resistance and low temperature resistance.

Glue scheme for in-vehicle computer:
Glue point for car computer | Glue function category | Features of glue |
circuit board | Three-proof glue | It has excellent insulation, moisture-proof, anti-leakage, shock-proof, dust-proof, anti-corrosion, anti-aging, corona resistance and other properties |
Radiator cooling | Thermal grease, thermal sheet, thermal conductive gel | It has excellent thermal conductivity, heat dissipation, electrical, insulation, moisture-proof, shock-proof, aging resistance, and can work for a long time in the temperature range of -40℃~180℃ |
PCB electronic components | Electronic sealant | Strong bonding ability, fast curing speed, resistance to alternating heat and cold, good electrical insulation, excellent acid and alkali resistance, aging resistance, UV resistance, no solvent, no pollution, no corrosion, easy to use |
Chassis frame and TP screen | bonding glue | High initial strength, specific performance of wear resistance, puncture resistance, corrosion resistance, rolling resistance, flammability, non-polluting, insulation, good fixation |

Due to the different application structure, practical operating environment and process of the vehicle computer, the glue application plan is different. For more detailed plans, please contact Cohetion.
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