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US 12,225,365 B2Granted
Speaker
AssigneeWistron Corporation
InventorsXiao-Qin Wang, Li-Ping Pan
Life of this patent
Estimating the term…
Abstract
A speaker includes a frame, a vibration assembly and a magnetic circuit assembly. The vibration assembly is assembled on the frame. The magnetic circuit assembly is assembled on the frame. The vibration assembly includes a voice coil and a piezoelectric element, the voice coil and the piezoelectric element are arranged coaxially, and the voice coil is between the piezoelectric element and the magnetic circuit assembly.
Claims18
A speaker, comprising:
- a frame;
- a vibration assembly assembled on the frame;
- and
- a magnetic circuit assembly assembled on the frame;
- wherein the vibration assembly comprises a voice coil and a piezoelectric element, the voice coil and the piezoelectric element are arranged coaxially, and the voice coil is between the piezoelectric element and the magnetic circuit assembly;
- wherein the piezoelectric element is cone-shaped, a shape of a cross section of the piezoelectric element is a triangle, a top of the tringle is a sharp point and the top of the piezoelectric element is away from the magnetic circuit assembly, and the sharp point faces a direction opposite to the direction toward the magnetic circuit assembly.
3 more elements
A speaker, comprising:
- a frame;
- a vibration assembly assembled on the frame, wherein the vibration assembly comprises a flange, a pot portion, and a piezoelectric element;
- the pot portion is cone-shaped, and the pot portion comprises a first ring edge and a second ring edge opposite to the first ring edge;
- a diameter of the first ring edge is greater than a diameter of the second ring edge;
- the first ring edge is connected to the flange, and the piezoelectric element is assembled on the second ring edge;
- and
- a magnetic circuit assembly assembled on the frame, wherein the magnetic circuit assembly comprises a channel bar, a washer, a main magnet, and a negative magnet;
- the main magnet and the washer are assembled on the channel bar, and the negative magnet is assembled to the main magnet through the washer;
- wherein the vibration assembly further comprises a voice coil and a damper, the voice coil and the piezoelectric element are arranged coaxially, and the voice coil is between the piezoelectric element and the magnetic circuit assembly;
- the damper comprises a third ring edge and a fourth ring edge opposite to the third ring edge;
- a diameter of the third ring edge is greater than a diameter of the fourth ring edge;
- the third ring edge is connected to the frame, and the fourth ring edge is connected to the voice coil;
- wherein the piezoelectric element is cone-shaped, a shape of a cross section of the piezoelectric element is a triangle, a top of the tringle is a sharp point and the top of the piezoelectric element is away from the magnetic circuit assembly, and the sharp point faces a direction opposite to the direction toward the magnetic circuit assembly.
10 more elements
Dependencies are inferred from the claim text.