Performance Characteristics of PTC Elements for an Electric Vehicle Heating System

Yoon Hyuk Shin, Seung Ku Ahn and Sung Chul Kim
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Yoon Hyuk Shin: Green Car Power System R&D Division, Korea Automotive Technology Institute, 74 Yongjung-ri, Pungse-myun, Dongnam-gu, Chonan-si, Chungnam 330-912, Korea
Seung Ku Ahn: R&D Center, 67-2 Sangdaewon-dong, Jungwon-gu, Seongnam-si, Kyeonggi 462-120, Korea
Sung Chul Kim: School of Mechanical Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan-si, Gyeongbuk 712-749, Korea

Energies, 2016, vol. 9, issue 10, 1-9

Abstract: A high-voltage positive temperature coefficient (PTC) heater has a simple structure and a swift response. Therefore, for cabin heating in electric vehicles (EVs), such heaters are used either on their own or with a heat pump system. In this study, the sintering process in the manufacturing of PTC elements for an EV heating system was improved to enhance surface uniformity. The electrode production process entailing thin-film sputtering deposition was applied to ensure the high heating performance of PTC elements and reduce the electrode thickness. The allowable voltage and surface heat temperature of the high-voltage PTC elements with thin-film electrodes were 800 V and 172 °C, respectively. The electrode layer thickness was uniform at approximately 3.8 ?m or less, approximately 69% less electrode materials were required compared to that before process improvement. Furthermore, a heater for the EV heating system was manufactured using the developed high-voltage PTC elements to verify performance and reliability.

Keywords: performance characteristics; positive temperature coefficient (PTC) element; screen printing; sputtering; electric vehicle; high voltage (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2016
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (9)

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