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Thermal Science - Online First

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Thermal performance analysis of electric vehicle charging connectors

In order to obtain the thermal characteristics of the electric vehicle connector in operation. Firstly, the thermal circuit diagram of the connector is obtained by using thermoelectric simulation method. Then, based on Newton's cooling equation, the natural convection heat transfer coefficient of the connector is calculated, which provides accurate input parameters for thermal simulation calculation. Finally, the thermal performance of the connector and the influence of component size and material are analyzed based on ANSYS software. When the working current is 250A and the ambient temperature is 25°C, the temperature rise of connector shell and conductor can meet the thermal performance requirement. In order to reduce the temperature and uniform temperature difference of each part of the connector, the following optimization schemes are put forward: the optimal length of the insulator is 44mm; the shell length should be increased as far as possible if conditions permit; LCP with high thermal conductivity is selected as the insulator material; aluminum alloy with high thermal conductivity and blackness is selected as the shell material.
PAPER REVISED: 2020-08-19
PAPER ACCEPTED: 2020-09-16
  1. Garrett, J. M. et al., Thermal management of vehicle cabins, external surface, and electronics: an overview, Engineering, 5(2019), 05, pp. 306-340.
  2. Chen, L. H., et al., Thermal design of electric cabinet for high-resolution space camera, Optics and Precision Engineering, 19(2011),01, pp.69-76.
  3. Liu, H. et al., Application of doped gallium based liquid metal silicone grease in heat dissipation of electronic devices, Rare metal materials and Engineering, 47(2018), 09, pp. 2668-2674.
  4. Jiang, F. et al., Thermal design of space camera baffle with low power, Infrared and Laser Engineering, 45(2016), 09, pp.189-194.
  5. Jiang, F. et al., Thermal design of star sensor assembly, Infrared and Laser Engineering, 43(2014), 11, pp. 3740-3745.
  6. Tang, Y. et al., Development status and perspective trend of ultra-thin micro heat pipe, Journal of Mechanical Engineering, 53(2017), 20, pp.131-144.
  7. Su, X.H., et al., Transient thermal analysis of a plate fin heat sink with Green's Function, Chinese Journal of Aeronautics, 24 (2011), 03, pp. 243-248.
  8. Wu, B. et al., Numerical investigation of phase change thermal control unit for portable electronic devices, Journal of Beijing University of Aeronautics and Astronautics, 36 (2010), 11, pp.1330-1334.
  9. Nie, Y., et al., Simulation analysis and test on thermal performances of stratospheric motor controller, Journal of Aerospace power, 33 (2018), 07, pp.1758-1766.
  10. Ding, J., et al., Thermal analysis of IGBT water-cooling radiator for electric vehicle converter, Journal of Central South University, 48 (2017),02, pp. 525-532.
  11. Wang, J. P., et al., Simulation analysis of heat transfer in the hydraulic system of loader, Journal of Jilin University, 46(2016), 01, pp. 153-158.