Low Loss on a Litz Aluminum Wire Coil Using Magnetic Tape for Automotive Wireless Power Transmission
| Autor: | Tsutomu Mizuno, Yinggang Bu, Hao Zhou, Mitsuhide Sato, Takumi Maezawa |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Power transmission
Materials science Magnetometer education Direct current Magnetic tape chemistry.chemical_element equipment and supplies Magnetic flux Electronic Optical and Magnetic Materials law.invention chemistry law Aluminium Electromagnetic coil Heat generation Electrical and Electronic Engineering Composite material human activities |
| Zdroj: | IEEE Transactions on Magnetics. 57:1-7 |
| ISSN: | 1941-0069 0018-9464 |
| Popis: | Litz copper wire (LCW) coils are used in wireless power-transmission systems in electric vehicles, which require minimal low loss and weight to reduce heat generation and improve fuel economy. In this study, we investigated magnetic tapes for low-loss and lightweight Litz aluminum wire (LAW) coils. The direct current resistance of the aluminum coil was higher than that of the copper coil; however, at 84 kHz, the alternative-current resistance was suppressed by the magnetic tape, and the weight of the LAW coil with a magnetic tape, which could reduce the resistance, was smaller than that of the LCW coil. The effectiveness of the magnetic tape in temperature reduction was clarified by the power-transmission experiment at 84 kHz. The transmission efficiency of the LAW coil with magnetic tape was improved and the temperature rise was reduced compared to the LCW coil. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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