SHENZHEN, China — Wireless power has moved from flagship phones to the everyday: smart watches, car cabins, floor-sweeping robots and home appliances now charge without cables. At the heart of every cord-free system lies a precision coil — and Shenzhen Zhixiangyuan Electronics Co., LTD (ZXY), a national high-tech enterprise with 26 years of magnetics expertise, 220 million components shipped annually and partners in over 79 countries, engineers the wireless charging coils that make them work.

ZXY's wireless charging line covers transmitter and receiver coils, PCBA-integrated modules and custom inductance designs from compact 8.1 µH Qi coils to 90 mm high-power transmitters:

Fig. 1 — G20 transmitter coil (10.4 µH, 20 mm): Litz-wire winding on a nano-crystalline backing sheet.

Fig. 2 — Qi magnetic transmitter coil module for wireless charger PCBA.

Fig. 3 — 15 W Qi coil (8.1 µH), silk-coated air-core winding.

Nano-crystalline + Litz-wire design. The G20 transmitter uses multi-strand Litz wire on a nano-crystalline magnetic backing to cut high-frequency losses (skin effect) and concentrate the magnetic field — the key to stable, low-heat charging.

Automotive three-coil architecture. ZXY's 20 W–22 W in-car charging assembly (12 V/24 V input) arranges three overlapping coils to create a wide charging zone, so a phone placed anywhere on the tray still charges — a "blind-charge" feature drivers expect.

Robot-grade receivers. Racetrack-shaped multi-layer receiver coils with ferrite shields and pressure-sensitive adhesive are built for floor-sweeping robots, delivering the alignment tolerance and heat control docking stations demand.

Ferrite shielding as standard. Coils are backed with ferrite sheets that concentrate the magnetic field, suppress electromagnetic interference and prevent eddy-current heating in nearby metal parts — a critical safety and efficiency requirement for automotive trays and robot docks alike. All Qi-compliant series are tuned for standard 5 W, 10 W and 15 W profiles, with custom inductance values available for proprietary designs.

Fig. 4 — Automotive wireless charging assembly with three-coil design (20 W–22 W, 12 V/24	Fig. 5 — Oval flat coil with ferrite shielding sheet for vehicle and consumer chargers.
Fig. 6 — Multi-layer receiver coils with ferrite shields for floor-sweeping robots.	Fig. 7 — 90 mm double-layer high-power coil for smart home appliances.

ZXY also manufactures hollow self-adhesive linear-motor coils for AI/ML applications and custom air-core levitation coils — evidence of coil engineering that extends beyond charging.

Fig. 8 — G50 fast-charging coil for phone charger pads.	Fig. 9 — G84 6.3 µH high-power dual-coil for Qi charging.

Backed by a professional test laboratory, strict three-phase QC and RoHS compliance, every ZXY coil ships with test records — from samples in 5–10 working days to volume production across two bases covering over 10,000 m². Trade terms FOB, CIF, DDU and DDP are all supported, and distributors worldwide are invited to join the ZXY network for patented technology and stable capacity.

Every inductance value, coil diameter, layer count and mounting style — SMD, leaded, PCBA-integrated or custom-shaped — can be tailored to an OEM's exact bill of materials, with engineering drawings and prototypes delivered before mass production.

Contact: Shenzhen Zhixiangyuan Electronics Co., LTD — www.zxyaudio.com | www.inductor-transformers.com | Alibaba: zhixiangyuan.en.alibaba.com | rhea@zxycoil.com | +86 135-5472-3725 (Tel/WhatsApp).