Contactless wireless energy transfer technology applied to tail-free household appliances

Jiantao Zhang, Chunbo Zhu, Qingquan Chen

Research output: Journal article publicationJournal articleAcademic researchpeer-review

28 Citations (Scopus)


Based on the principle of magnetic resonance, tail-free household appliances can be obtained by using the energy transmission of the flat magnetic with a core to avoid security risks brought by the charging means of plug-in. The wireless energy transfer system associated with this paper is based on the structure of a primary winding with a magnetic core and a secondary winding without a magnetic core. A high power and high transfer efficiency in the wireless charging process and a reduced secondary in the dimension, volume and weight are achieved by using the system. Firstly, a magnetic coupling resonant model is established and the resonant parameters are optimized. Then a distribution curve of a coupling coefficient is obtained via the simulation. Finally, a wireless transfer distance of 60 millimeter to 150 millimeter, an output power of 700W, and transfer efficiency of up to 84.5% are achieved via the establishment of a hardware experimental platform.

Original languageEnglish
Pages (from-to)33-37
Number of pages5
JournalDiangong Jishu Xuebao/Transactions of China Electrotechnical Society
Issue number9
Publication statusPublished - 26 Sept 2014
Externally publishedYes


  • Electrical engineering
  • Magnetic core
  • Tail-free household appliances
  • Wireless energy transfer

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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