| 摘要 |
A light and sound producing structure for a wheeled traveling case assembly having a base with two wheels, an extendable pull handle and two front legs connected thereto, and a traveling case located on the front legs mainly includes a ring-shaped magnetic rotor fixedly mounted on an axle of one of the two wheels to rotate along with the wheel, and a stator coil fixedly mounted on the base to surround the ring-shaped magnetic rotor. When the wheels rotate, induced currents are generated on the stator coil and supplied to the pull handle and/or the traveling case for light-emitting and sound-reproducing elements provided thereon to produce light and sound, respectively.
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