Application background
At present, with the vigorous development of the new energy automobile industry, the performance requirements for key components are becoming more stringent. Silicone rubber flat cable plays a pivotal role as an important part of connecting battery pack and management system, drive motor and controller. A well-known new energy vehicle manufacturer, in its new model research and development, selected silicone rubber flat cable.
Reason for use
High temperature resistance: new energy vehicles will generate a lot of heat during operation and charging, and ordinary cables are easy to age at high temperatures, affecting electrical performance. Flat silicone rubber cables maintain stable electrical performance in high temperature environments, ensuring that power transmission is not affected when the vehicle is driving at high speeds or charging for a long time.
Low temperature resistance: In cold areas, ordinary cables may become brittle and fail to work normally. Silicone rubber flat cable has good low temperature resistance, so that the vehicle can start and run normally in cold areas.
Corrosion resistance: The vehicle operating environment is complex, the corrosion resistance of silicone rubber material, effectively resist the erosion of the cable in the harsh environment such as humidity, acid and alkali, and greatly improve the safety and reliability of the vehicle.
Problems encountered
Limited installation space: The compact interior structure of the car leaves very limited space for cable wiring, and traditional circular cables are difficult to meet the layout needs.
Electromagnetic interference problem: there are many electronic devices inside new energy vehicles, and the complex electromagnetic environment is easy to interfere with the cable transmission signal.
Solution
Optimized flat design: The section shape and size of the silicone rubber flat cable are optimized to save the installation space to the greatest extent under the premise of meeting the electrical performance. Through accurate calculation and many tests, the optimal flat proportion is determined to ensure that the cable can be flexibly routed in a small space.
Add a shield layer: Add a metal shield layer on the outer layer of the cable to effectively block external electromagnetic interference and ensure the stability of signal transmission. At the same time, the grounding mode of the shielding layer is optimized to further improve the anti-interference effect.
Achievement
After actual road testing and user feedback, the electric system of this model runs stably in various complex environments, and there is no fault caused by cable problems. Not only solves the problem of installation space, but also improves the reliability of the vehicle in a complex electromagnetic environment, which effectively proves the reliability and applicability of silicone rubber flat cable in the field of new energy vehicles.
