/Patent Tracker
SamsungPatent applicationChips & hardwareInterest 3/10

Samsung patents magnetic gear design with connected pole pieces

Patent drawing
Patent drawing from the official filing.

Samsung has filed a patent for a magnetic gear that uses a specific arrangement of metal parts to transfer motion between two rotating components without physical contact. The design features a series of pole pieces with holes and curved edges that connect to small bridges, creating a structure that fits between the inner and outer rotors of the motor.

Why it mattersThis filing focuses on the internal mechanical structure of motors, which could lead to more efficient or compact electric motors for future devices, though it is a detailed engineering update rather than a new consumer feature.

In the filing’s own words

A magnetic gear including an inner rotor, an outer rotor, and a pole piece. The pole piece includes a plurality of pole piece bodies arrangeable along a radial direction with to the rotation axis and spaced apart from each other, and a plurality of bridges, arrangeable to protrude from the plurality of pole piece bodies, respectively, configured to connect adjacent pole piece bodies among the plurality of pole piece bodies. The plurality of pole piece bodies respectively comprise a through-hole formed on the plurality of pole piece bodies, respectively, a recessed portion, formed on a bottom surface of the plurality of pole piece bodies, respectively, facing the inner rotor, and fillets, configured to be connected to the plurality of bridges, formed on side surfaces of the plurality of pole piece bodies, respectively, such that the adjacent pole piece bodies among the plurality of pole piece bodies face each other.

What exactly they claim (claim 1)

1. A magnetic gear, comprising: an inner rotor configured to receive rotational power; an outer rotor to be disposed coaxially with a rotation axis of the inner rotor and spaced apart from the inner rotor; and a pole piece to be disposed between the inner rotor and the outer rotor and spaced apart from the inner rotor and the outer rotor; wherein the pole piece comprises: a plurality of pole piece bodies arrangeable along a radial direction with to the rotation axis and spaced apart from each other while the pole piece is disposed between the inner rotor and the outer rotor; and a plurality of bridges, arrangeable to protrude from the plurality of pole piece bodies, respectively, configured to connect adjacent pole piece bodies among the plurality of pole piece bodies; and wherein the plurality of pole piece bodies respectively comprise: a through-hole formed on the plurality of pole piece bodies, respectively; a recessed portion, formed on a bottom surface of the plurality of pole piece bodies, respectively, facing the inner rotor; and fillets, configured to be connected to the plurality of bridges, formed on side surfaces of the plurality of pole piece bodies, respectively, such that the adjacent pole piece bodies among the plurality of pole piece bodies face each other.

Facts

Company
Samsung (SAMSUNG ELECTRONICS CO., LTD.)
Official title
TITLE MAGNETIC GEAR AND MAGNETIC-GEARED MOTOR INCLUDING SAME
Publication number
US20260332019A1
Application number
19468736
Filed
Feb 3, 2026
Published
Oct 22, 2026
Inventors
5
Claims
14

Classified under

H02K 49/102 Electricity & electronics
Read the full filing (official PDF) ↗ Open in the Patent Tracker

More from Samsung in Chips & hardware

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.