Application of PPS in three electric systems of new energy vehicles, battery, motor and electronic control

Application of PPS in three electric systems of new energy vehicles, battery, motor and electronic control

New energy vehicles have "three electric system", three electric system is a measure of a car with hard core strength of the most important standard, which includes batteries, motors and electronic control of the three parts. Today I PPS modified plastics in new energy vehicles "three electric" applications with you.

Battery

As the power source of new energy vehicles, the power battery is the most important system in the whole vehicle, accounting for 30% to 40% of the cost of the vehicle, which is also different from other traditional fuel vehicles, the signature components. As the heart of electric vehicles, the performance of the power battery directly determines the range and power safety, which is the bottleneck of the development of electric vehicles.

What is the use of PPS material in power battery? And look at the following chart:

1. Power battery PACK (top and bottom cover) material selection program:

a.Continuous fiber reinforced PPS rapid prototyping

b. PPS particle embedded injection molding (commercial vehicles)

2. Power battery module material selection program:

Thermoplastic continuous fiber reinforced PPS material

3. Module cover material selection program:

Positive electrode material: weak to PPS material, voltage breakdown resistance

Negative electrode material: insulating high strength material

4. Battery sealing ring material selection program:

Replace traditional PFA with PPS material

Electric motors

The drive motor converts electrical energy from the battery into mechanical energy and is the direct source of vehicle power. It mainly consists of a stator, rotor, housing, connectors, resolver, etc. The key points of motor technology are the stator and rotor.

Among them, the connector, stator, rotor and other parts are PPS modified plastics "good food".PPS has high mechanical strength, high temperature resistance, high flame retardant, chemical resistance, flame retardant, high crystallinity, good thermal stability, high mechanical strength, excellent electrical properties and other superior overall performance, so many parts can be seen! PPS's figure.

Electronic control

New energy vehicles with batteries, drive motors have been able to run, but how to run, how to change speed, when to brake, how to climb slopes and so on there is a need for a system to control, which is the electronic control system. New energy vehicle electronic control system is to control the vehicle drive motor device, equivalent to the new energy vehicle "brain", the entire vehicle operation and power output for reasonable control.

There are three core components of the electronic control system: inverter, driver and controller. Focus to say is the electronic control system "three" in the inverter core module: IGBT (insulated gate bipolar transistor), can be said to be the key to the electronic control system, the cost can account for the entire electronic control system of 40-50%. Due to the long validation period, high technical and reliability requirements of automotive-grade IGBT modules, the selection of suitable IGBT module materials is also a very critical part of the process.