结构至简的扬声器及骨传导耳机

Abstract

本实用新型公开了一种结构至简的扬声器及骨传导耳机，包括外壳、振动片、固磁结构和音圈结构；所述外壳内设置有装配腔；所述振动片的固定部和外壳呈固定设置；所述固磁结构位于装配腔内，所述固磁结构和振动片的振动部呈固定设置；所述音圈结构位于装配腔内，所述音圈结构呈环形设置，所述音圈结构和外壳呈固定设置，所述固磁结构部分插设于音圈结构内周；所述音圈结构的外周壁和装配腔的内周壁之间的间距为d1，所述音圈结构的厚度为d2，其中，d1≤3mm，或，d1≤d2。采用上述方案，提供一种通过将音圈结构靠近安装于装配腔的内壁以增大音圈结构的厚度，从而音圈结构通音频信号时产生更强的磁场以增强振动强度的结构至简的扬声器及骨传导耳机。

Claims

1. A speaker with a simple structure, characterized by comprising: include: The outer shell (1) has an assembly cavity (11) inside it; The vibrating plate (2) is fixedly disposed with the fixing part of the vibrating plate (2) and the outer shell (1); A solid magnetic structure (3) is located in the assembly cavity (11), and the solid magnetic structure (3) and the vibrating part of the vibrating plate (2) are fixedly arranged; The voice coil structure (4) is located in the assembly cavity (11). The voice coil structure (4) is arranged in a ring shape. The voice coil structure (4) and the outer shell (1) are fixedly arranged. The solid magnet structure (3) is partially inserted into the inner circumference of the voice coil structure (4). The distance between the outer peripheral wall of the voice coil structure (4) and the inner peripheral wall of the assembly cavity (11) is d1, and the thickness of the voice coil structure (4) is d2, wherein d1≤3mm or d1≤d2.

2. The structure-simplified loudspeaker of claim 1, wherein: 0mm < d1 < 0.1mm; and / or, The outer peripheral wall of the voice coil structure (4) and the inner peripheral wall of the assembly cavity (11) are bonded together with glue.

3. The structure-simplified loudspeaker of claim 1, wherein: The height of the solid magnet structure (3) is h1, and the depth to which the solid magnet structure (3) is inserted into the voice coil structure (4) is h2, wherein h1 / 4≤h2≤(3*h1) / 4.

4. The loudspeaker with a simple structure according to any one of claims 1-3, characterized in that: The voice coil structure (4) is located at the end of the solid magnetic structure (3) away from the vibrating plate (2); or, The voice coil structure (4) is located at one end of the solid magnet structure (3) facing the vibrating plate (2).

5. The structure-simplified loudspeaker of claim 4, wherein: The end of the solid magnetic structure (3) away from the vibrating plate (2) and the end of the voice coil structure (4) away from the vibrating plate (2) are successively moved away from the vibrating plate (2). The height difference between the end of the solid magnetic structure (3) away from the vibrating plate (2) and the end of the voice coil structure (4) away from the vibrating plate (2) is s, where s≥0mm.

6. The structure-simplified loudspeaker of claim 4, wherein: The fixing part of the vibrating plate (2) is fixed to one end of the voice coil structure (4) facing the vibrating plate (2).

7. The structure-simplified loudspeaker of claim 1, wherein: The assembly cavity (11) is provided with a first opening (111); The voice coil structure (4) is located at the first opening (111), and the end of the voice coil structure (4) facing away from the vibrating plate (2) is provided with a first cover (5) for sealing the first opening (111).

8. The structure-simplified loudspeaker of claim 7, wherein: The first cover (5) is made of a thermally conductive material.

9. The structure-simplified loudspeaker of claim 1, wherein: The assembly cavity (11) is provided with a second opening (112), and the vibrating plate (2) is assembled into the assembly cavity (11) through the second opening (112); A second cover (6) for sealing the second opening (112) is fixedly provided at the second opening (112).

10. The structure-simplified loudspeaker of claim 9, wherein: A vibration area (12) is provided between the second cover (6) and the vibrating plate (2) to prevent the vibrating plate (2) from colliding with the second cover (6) when vibrating.

11. The structure-simplified loudspeaker of claim 1, wherein: The solid magnetic structure (3) includes a magnet (31) and a magnetically conductive sheet (32) disposed at at least one end of the magnet (31); or, The solid magnetic structure (3) consists only of magnets (31).

12. A bone conduction earpiece, characterized by: Includes the speaker with the simplest structure as described in any one of claims 1-11.

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