Under-Desk Qi Charger Spring Bar
A stepped leaf-spring bar that screws to the underside of a desktop and presses a Qi wireless charging pad flat against the wood, so the desk surface becomes a charge spot — no double-sided tape. 156 x 24 x 14 mm; the sprung arms give a 10 mm nominal pad gap with about 3 mm of travel either way (pads roughly 7-14 mm thick, up to ~100 mm across), four 4.5 mm holes on a 136 x 12 mm rectangle take #8 wood screws (4.2 mm shank) or M4, and two 7 mm reliefs across the pressure face clear the pad's cable. Charging through the top needs a thin panel or a routed recess.
desk qi-charger wireless-charging under-desk