The heat dissipation problem of high-power OBC chargers can be easily solved by TIS thermal insulation sheets.

In the trend of new energy vehicles moving towards high-power fast charging, the on-board charger (OBC), as the core hub for energy conversion, is bearing increasingly high performance demands. It functions as the "energy converter" of the entire vehicle, responsible for converting the alternating current from the power grid into the direct current that the battery can store. The continuous increase in power density has made fast charging more widespread, but the accompanying heat dissipation problem has become the core bottleneck restricting its stability. Industry data shows that over 30% of on-board power supply failures are directly related to heat management. During the operation of high-power OBC, local hotspots can easily exceed 125℃. If the heat cannot be promptly dissipated, it will not only limit the charging power and reduce the conversion efficiency, but also accelerate the aging of components and even pose safety risks.

The emergence of TIS thermal insulation sheets has provided a one-stop cooling solution for high-power OBC chargers, becoming the "invisible guardian" that ensures their stable operation. This high-performance elastomer material reinforced with fiberglass cloth achieves a balance of heat conduction, insulation, and durability through its unique structural design and technological innovation. Its vertical heat conduction coefficient can reach 0.9-2.0 W/mK, which can quickly transfer the heat generated by core components such as MOSFET and IGBT to the cooling system. Combined with its soft material properties, it can closely adhere to the contact surface and fill in tiny gaps, significantly reducing thermal resistance and effectively controlling the junction temperature of the components within the safe range.

With the gradual popularization of the 800V high-voltage platform and the 350kW ultra-fast charging technology, the power density of OBC will continue to increase, and the requirements for heat dissipation and insulation will become increasingly stringent. TIS thermal insulation sheet, with its core performance, clears obstacles for the technological iteration of high-power OBC, helps new energy vehicles achieve breakthroughs in both fast charging experience and driving safety, and injects strong impetus into the high-quality development of the industry.