Patent ID: 8472645

Claim:
A device with a dynamic magnet loudspeaker, the device comprising: a first housing member having a wall, wherein a first magnetic element is fixedly provided on an inner surface of the wall; a seat having a first side connected to the first housing member to form a single unit and thereby define a first receiving space between the first housing member and the first side of the seat; a first coil unit fixedly provided on the seat and corresponding in position to the first magnetic element, wherein the first coil unit is formed by at least a metal wire wound in a predetermined way and has an end extending toward the first magnetic element such that, when the first coil unit is magnetized to generate magnetic lines, the magnetic lines generated by the first coil unit and magnetic lines generated by the first magnetic element create attraction or repulsion that drives the first magnetic element as well as the first housing member to vibrate reciprocally and thereby make sound; a hollow tube fixedly provided on the seat and corresponding in position to the first magnetic element, wherein the first coil unit is fixedly mounted around a first end of the hollow tube, and the hollow tube penetrates the seat such that a second end of the hollow tube juts out of a second side of the seat; a second housing member connected to the seat to form a single unit and thereby define a second receiving space between the second housing member and the second side of the seat; and a second magnetic element fixedly provided on an inner surface of a wall of the second housing member and corresponding in position to the second end of the hollow tube, wherein a second coil unit fixedly mounted around the second end of the hollow tube is formed by at least a metal wire wound around the second end of the hollow tube in a predetermined way, and the second end of the hollow tube extends toward the second magnetic element and is either mounted around an outer periphery of the second magnetic element or inserted in a second central hole of the second magnetic element.