Ultra-thin High-sensitivity Pogo Pin Induction Coil Solution for TWS Headset Charging Cases

The induction coil of TWS Bluetooth headset charging case is a core component for headset storage induction, intelligent dormancy, precise charging and power identification. With the ultra-thin and miniaturized design trend of TWS headsets, the internal assembly space of charging cases is extremely limited, requiring supporting coils to have ultra-thin thickness, high dimensional accuracy, low impedance and stable induction sensitivity. Ordinary coils suffer from inconsistent batch parameters, large induction blind areas and unstable impedance, which easily cause intermittent charging failure, abnormal power consumption and induction failure, seriously affecting user experience and product yield of wireless audio devices.

Our client is a leading domestic consumer electronics brand specializing in R&D and mass production of mid-to-high-end TWS Bluetooth headsets and wireless audio equipment, with products sold well in global markets. In the new ultra-thin TWS headset iteration project, the original coils could not adapt to miniaturized assembly space, resulting in high defective rate due to frequent induction and charging failures. The client needed customized ultra-thin induction coils with high sensitivity, zero induction blind area and consistent batch parameters to improve product qualification rate and intelligent induction accuracy.

Fuying Electronics adopts ultra-fine high-purity enameled wire and micro-spacing dense winding technology to minimize coil thickness while ensuring stable electromagnetic induction. The intelligent dynamic tension control system balances winding force to avoid wire deformation and stabilize impedance parameters, realizing zero batch parameter deviation. Optimized flat forming technology improves coil flatness and extrusion resistance to ensure precise docking. Every coil undergoes full inspection of sensitivity, impedance and size to eliminate induction failure risks.

After mass application, the client’s new TWS headsets achieve instant storage induction, stable fast charging and ultra-low standby power consumption, with zero induction failure and intermittent charging problems. The product yield and market reputation are greatly improved. Fuying Electronics provides ultra-thin, high-sensitivity and high-consistency customized coils for TWS headsets and wearable charging devices, supporting rapid sample production and stable mass supply.