Thermal Problem and solution Of Electric Vehicle Inverters
When it comes to improving the range of electric vehicles, the first thing people think of is battery technology. In fact, the transmission system also plays a crucial role, such as an inverter that can convert the direct current in the battery into the alternating current used in the motor. Both hybrid and pure electric vehicles have inverters, which serve as devices connecting high-voltage batteries and motor power for mutual conversion. They receive DC power output from the power battery and convert it into three-phase AC power to provide for motor operation.
Inverters are usually designed with high-power IGBTs, and long-term operation of IGBTs will generate high heat accumulation, resulting in devices operating at high temperatures, which affects performance and requires additional heat dissipation solutions. High power IGBT modules have a wide range of applications in power conversion systems, reactive power compensation systems, and other fields. With the development of system size and weight towards lightweighting, the heat dissipation per unit volume of IGBT modules is increasing, seriously endangering the stable operation of the system.
In the inverter, the power converter components need to consider insulation issues. It is recommended to use high cost-effective thermal insulation gaskets with high breakdown voltage, glass fiber, and tear resistance. TIS thermal insulation material products are insulation products that have good conductivity, good dielectric strength, high voltage insulation, low thermal resistance, tear resistance, puncture resistance, thermal conductivity, and other properties. It is widely used in applications such as smartphones, tablets, mobile laptops, and new energy.
In addition to the thermal conductivity of key components, inverters usually use thermal conductive sealing silicone for sealing and protection. Firstly, it can conduct heat and dissipate heat, and secondly, it can reinforce shock resistance, moisture-proof and waterproof. TIS thermal conductive sealing adhesive series is a single - and two-component dealcoholized room temperature curing thermal conductive silicone, with high thermal conductivity, room temperature curing ability, long working time, and fire resistance. It is a silicone resin sealing adhesive. It can be widely used in integrated circuits, microcomputer processors, cache memory, new energy and other products of personal portable computers. Has cooling and bonding effects on electronic devices. It can solidify into high hardness elastomers in a short period of time.
