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  6. Responding to the demand for wireless power transmission! SQLW square cross-section litz wire.

Responding to the demand for wireless power transmission! SQLW square cross-section litz wire.

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last updated:Feb 04, 2025

東特巻線 本社
東特巻線 本社
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Robots and medical devices can also be used! Increased filling rate of twisted wires improves heat dissipation due to increased cross-sectional area! Maintains equivalent performance to round shapes while contributing to miniaturization!

Currently, energy storage technology is rapidly advancing, and technological innovations are still being pursued. At the same time, there is a growing expectation and demand for wireless (non-contact) power supply technology. In various fields such as electric vehicles, which are expected to grow into a significant market, as well as robotics, drones, home appliances, and medical devices, the characteristics of SQLW square cross-section litz wire can be utilized. Compared to conventional round litz wire, using square or rectangular shapes can eliminate unnecessary gaps and increase the filling ratio of stranded wire by about 20%. Additionally, the resistance can be reduced by approximately 10-20%, and since a larger cross-sectional area can be achieved, heat dissipation through surface contact is improved, allowing for a higher current flow. It is also possible to increase the number of turns while maintaining the same external dimensions as the previous round litz wire, making it suitable for the rapidly increasing demand for wireless fast charging, while also contributing to miniaturization without compromising performance.

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SQLW-image.png

Responding to the demand for wireless power transmission! SQLW square cross-section litz wire.

SQLW-image.png
SQLW-image.png

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basic information

Size Cross-sectional area 3.0 7.07 4.0 12.56 5.0 19.63 6.0 28.26 7.0 38.47

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Applications/Examples of results

Electric vehicles, robots, drones, home appliances, medical devices, AGVs.

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SQLW square cross-section litz wire that meets wireless power supply needs.

SQLW square cross-section litz wire that meets wireless power supply needs.

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東特巻線

東特巻線 本社

Machine elements and parts

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Tohoku Tokubakusen Co., Ltd. began manufacturing Ritz wires and braided wires in 1956, and for over half a century, we have supported "monozukuri" (manufacturing) together with our customers by leveraging our manufacturing know-how in various coils, harnesses, and electronic device assembly. While utilizing the unique technologies and experiences we have accumulated so far, we will continue to challenge ourselves with all our efforts to meet our customers' needs.

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