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  • 专利标题:   Polymeric positive temperature coefficient (PPTC) tank heater comprises first conductive region comprising first conductive surface coupled to first lead; and second conductive surface coupled to second lead; heater body.
  • 专利号:   US2022208420-A1, WO2022140942-A1, WO2023004187-A1, US11621108-B2
  • 发明人:   FAGANELLO D, CHEN J, ZHOU Z, FU Y
  • 专利权人:   LITTELFUSE INC, DONGGUAN LITTELFUSE ELECTRONICS CO LTD, LITTELFUSE INC
  • 国际专利分类:   H01B001/04, H01C001/14, H01C017/065, H01C007/02, H01M010/6571, H05B003/14, F02B029/04, F02M025/025, F02M025/028, F02M025/03, F02M031/20, F24H001/18, F24H001/20, F24H009/1809, H05B003/20, H05B003/78
  • 专利详细信息:   US2022208420-A1 30 Jun 2022 H01C-007/02 202262 English
  • 申请详细信息:   US2022208420-A1 US383513 23 Jul 2021
  • 优先权号:   WOCN140264, US383513

▎ 摘　　要

NOVELTY - Polymeric positive temperature coefficient (PPTC) tank heater (100) comprises a first conductive region (102) comprising a first conductive surface (106) coupled to a first lead (108); and a second conductive surface coupled to a second lead; a heater body (104) comprising a PPTC polymer matrix, the PPTC polymer matrix comprising a conductive filler and a semi-crystalline polymer; and a second conductive region, where the heater body is disposed between the first conductive region and the second conductive region to form a sandwich; the sandwich comprises a plurality of heating elements coupled in series, each heating element of the plurality of heating elements comprising a different resistance. USE - Polymeric positive temperature coefficient (PPTC) tank heater ADVANTAGE - The PPTC tank heater has higher power density. DESCRIPTION OF DRAWING(S) - The drawing shows a diagram of PPTC tank heater. PPTC tank heater (100) Conductive region (102) Heater body (104) Conductive surface (106) First lead (108)