One-piece speaker having built-in sound cavity
AssigneeTransound Electronics Co., Ltd.
InventorsTseng-Feng Wen, Hui Xue
Life of this patent
Estimating the term…
Abstract
A one-piece speaker having a built-in sound cavity includes a holder, a casing, a diaphragm, a voice coil, a washer, a magnet, a U-shaped cup, and a circuit board assembly. The speaker has its built-in sound cavity, so that the assembly is more convenient and flexible. The overall structure is simpler and easy to be produced. The sound cavity is larger, the sound sensitivity is better, and there is no need to distinguish between mid and low sounds. The bandwidth is larger, the response speed is faster, the signal frequency allowed to pass is high, the signal distortion is small, and the sound quality is better.
Claims9
A one-piece speaker, comprising a holder, a casing, a diaphragm, a voice coil, a washer, a magnet, a U-shaped cup, and a circuit board assembly;
- the casing covering the holder, the diaphragm and the circuit board assembly being attached to a front and a back of the holder respectively, the U-shaped cup being mounted to the holder and extending out of the circuit board assembly, the magnet being disposed in the U-shaped cup, the washer being stacked on the magnet, the voice coil being mounted on the diaphragm and extends between the magnet and the U-shaped cup, a sound cavity located behind the diaphragm being formed between the circuit board assembly and the holder;
- wherein the holder has two open ends, an inner side wall of the holder has an annular positioning portion, front and rear sides of the annular positioning portion are formed with a first mounting seat and a second mounting seat respectively, the diaphragm and the circuit board assembly are mounted to the first mounting seat and the second mounting seat respectively, an annular mounting portion is connected to an inner side wall of the annular positioning portion, the U-shaped cup is mounted to the annular mounting portion, the circuit board assembly is attached to a rear side of the annular mounting portion, a first hollowed-out portion is provided between the annular mounting portion and the annular positioning portion, the sound cavity is formed among the circuit board assembly, the holder, the annular mounting portion and the first hollowed-out portion, and the first hollowed-out portion communicates with the sound cavity.
Dependencies are inferred from the claim text.