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Apple patents shield design to protect wireless charging coils

Patent drawing
Patent drawing from the official filing.

Apple has filed a patent for an electrostatic shield designed for wireless charging devices. The system uses two layers of conductive segments with gaps that align with the solid parts of the other layer, separated by an insulator, to sit on top of a charging coil.

Why it mattersThis is a specific engineering tweak for internal hardware that helps manage electrical interference in wireless chargers, which is a standard part of developing new devices.

In the filing’s own words

The described shielding system comprises a first shield and a second shield. The first shield comprises a first plurality of conductive segments extending from a first location. The first plurality of conductive segments are separated from each other by a first plurality of gaps. The second shield comprises a second plurality of conductive segments extending from a second location. The second plurality of conductive segments are separated from each other by a second plurality of gaps. An insulator may be interposed between the first shield and the second shield. The first plurality of gaps may at least partially align with the second plurality of conductive segments and the second plurality of gaps may at least partially align with the first plurality of conductive segments.

What exactly they claim (claim 1)

1. A wireless charging device comprising: a power coil comprising a conductive wire wound in a plurality of turns about a center point and in increasing radii such that the power coil is substantially planar; a first shield positioned on a bottom surface of the power coil, the first shield comprising a first plurality of conductive segments extending radially from a first location, wherein the first plurality of conductive segments are separated from each other by a first plurality of gaps; and an insulator positioned between the power coil and the first shield.

Facts

Company
Apple (Apple Inc.)
Official title
ELECTROSTATIC SHIELD FOR WIRELESS SYSTEMS
Publication number
US20260322177A1
Application number
19467074
Filed
Feb 2, 2026
Published
Oct 15, 2026
Inventors
2
Claims
11

Classified under

H02J 50/70 Electricity & electronicsH01F 27/288 Electricity & electronicsH02J 50/005 Electricity & electronicsH02J 50/10 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

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Summaries are simplified from the filing’s own abstract and first claim. A patent filing is not a product announcement.
Patent data and drawings: U.S. Patent and Trademark Office (USPTO). Nebula is not affiliated with or endorsed by the USPTO.