High Reliable NTC Thermistor for EV Drive Motors

The primary source of power for EV mainly comes from battery packs, drive motors and power electronic equipment. The battery provides power to the drive motor, and the current passes through the stator winding to drive the rotor to rotate, generating the mechanical energy for operation.

The NTC thermistor for EV drive motors is highly waterproof and oil-proof, which can detect the internal temperature of the motor and ensure the motor can operate normally under various conditions. By detecting the real time temperature changes, NTC thermistor will trigger a protection mechanism when the temperature is higher than setting limit, and it will safe guard the motor from overheating or malfunction.

Canalys, a world-renowned independent technology market analysis agency, predicts the sales of global electric vehicles (EVs) to grow 29% and reach 13.7 million units, equating to a penetration rate of 17.1% in 2023.

The highly waterproofed and oil-proofed NTC thermistor researched and developed by Exsense is installed in the drive motor, in order to detect the real time temperature changes.ensure the motor operated normally, and extend the equipment’s service life.

Through data provided by NTC thermistor, the EV’s electronic control system can adjust the motor power output in real time to avoid overheating or overcooling. It can also provide more accurate temperature monitoring and fault diagnosis to keep the safety and reliability of the motor system.

Product picture:

No.	Material	Specifications
1	Thermistor	R25=10KΩ±1%, B(25/50)=3950K±1%
2	Glass tube	0.8mm, 1.3mm, 2.3mm
3	Dumet wire	0.2*76.5mm
Customized thermistor/ wire length availble

NTC Thermistor Electronic characteristics:

1.Thermal time constant: ≤2secondsmax, in oil

2.Dissipation factor: about 0.6W/℃in still air

3. Rated power: 35mWmax

4.Operation temperature range: -40℃ ~ 250℃

Contact:

Ms. Tina Tang

Exsense Sensor Technology Co., Ltd

Tel:86-15813344362

email:sak@exsense.net

Web:www.exsense.net;www.exsense.com

Add:Xida Science Park, Duanzhou Dist., Zhaoqing , Guangdong