Patent ID: 12192721

DETAILED DESCRIPTION OF THE EXEMPLARY EMBODIMENT

The present disclosure will hereinafter be described in detail with reference to an exemplary embodiment. To make the technical problems to be solved, technical solutions and beneficial effects of the present disclosure more apparent, the present disclosure is described in further detail together with the figure and the embodiment. It should be understood the specific embodiment described hereby is only to explain the disclosure, not intended to limit the disclosure.

Please refer toFIGS.1-6together, a sound device100provided by an exemplary embodiment of the present disclosure includes a frame1, a vibration system2supported on the frame1, a magnetic system3with magnetic gap33supported on the frame1, and a circuit board4for electrical connection. The vibration system2includes a diaphragm assembly21having a diaphragm212and a coil22inserted in the magnetic gap33to drive the diaphragm212to vibrate and sound. The diaphragm assembly21includes a diaphragm holder211fixed to the frame1and the diaphragm212fixed to the diaphragm holder211for sound generation. The diaphragm212includes a first flat part2121having an opening2121b, a folded ring part2122in the shape of a ring on the outside of the first flat part2121, and an attachment part2123on the outside of the folded ring part2122and fixedly connected to the diaphragm holder211. The diaphragm assembly21also includes a waterproof breathable film214fixed to the first flat part2121, the first flat part2121includes a first inner edge2121aaway from the folded ring part2122. Observed along the vibration direction, the first inner edge2121ais located on the inner side of the coil22, and the outer edge214aof the waterproof breathable film214is located on the outer side of the coil22, increasing the width of the waterproof seal and providing better waterproof performance.

In this embodiment, the waterproof breathable film214includes a waterproof layer2141and a metal mesh layer2142, the waterproof layer2141is provided on the side of the metal mesh layer2142away from the magnetic system3, and the material of the waterproof layer2141is Teflon. In other optional embodiments, the waterproof layer2141may also be provided on the side of the metal mesh layer2142near the magnetic system3.

In this embodiment, the waterproof breathable film214is fixed on the side of the first flat part2121near the magnetic system3, making the connection between the waterproof breathable film and the first flat part more solid and less likely to fall off. In other optional embodiments, the waterproof breathable film may also be secured to the side of the first flat portion away from the magnetic circuit system.

In this embodiment, the diaphragm assembly21also includes a seal213set on the outside of the diaphragm holder211for enhancing the overall waterproof performance of the sound device100. In other optional embodiments, it is also possible not to set the seal ring, but to design the whole waterproof function on the parts that cooperate with the sound device according to the design requirements of the electronic equipment.

The diaphragm212also includes a second flat part2124which is provided on the side of the first flat part2121near the magnetic system3, and the second flat part2124is connected to the folded ring part2122and parallel to the first flat part2121, and the outer edge214aof the waterproof breathable film214is sandwiched between the first flat part2121and the second flat part2124to further enhance the waterproof performance of the sound device100.

In this embodiment, the direction of the curved concave of the folded ring part2122is in the direction close to the coil22. In other embodiments, the direction of the curved concave of the folded ring part may also be in the opposite direction, i.e., in the direction away from the coil.

The magnetic system3includes a main magnet31and two secondary magnets32provided on both sides of the main magnet31along the short axis direction of the sound device, and the magnetic gap33is formed between the secondary magnets32and the main magnet31, and the first flat part2121is partially overlapped with the main magnet31and the secondary magnets32when viewed along the vibration direction, and the waterproof area can cover the magnetic gap33to improve the waterproof performance of the sound device100.

The magnetic system3also includes an upper clamp34and a lower clamp35fixed to the frame1, with a secondary magnet32sandwiched between the upper clamp34and the lower clamp35and a main magnet31fixed to the lower clamp35. The magnetic system3also includes a pole36, and the main magnet31is sandwiched between the pole36and the lower clamp35.

Compared with the related art, the sound device of the present disclosure includes a frame, a vibration system supported on the frame, a magnetic system with magnetic gap supported on the frame. The vibration system includes a diaphragm assembly having a diaphragm and a coil inserted in the magnetic gap to drive the diaphragm to vibrate and sound. The diaphragm assembly includes a diaphragm holder fixed to the frame and the diaphragm fixed to the diaphragm holder for sound generation. The diaphragm includes a first flat part having an opening, a folded ring part in the shape of a ring on the outside of the first flat part, and an attachment part on the outside of the folded ring part and fixedly connected to the diaphragm holder. The diaphragm assembly also includes a waterproof breathable film fixed to the first flat part. The first flat part includes a first inner edge away from the folded ring part. Observed along the vibration direction, the first inner edge is located on the inner side of the coil, and the outer edge of the waterproof breathable film is located on the outer side of the coil. As a result, the dome design is eliminated and the waterproof breathable film is used directly as a dome. The sealing width between the diaphragm and the waterproof breathable film is larger, the waterproof performance is better, there are fewer parts, the assembly is simpler, and the location to achieve the waterproof function is reduced, reducing the risk of waterproof failure.

It is to be understood, however, that even though numerous characteristics and advantages of the present exemplary embodiments have been set forth in the foregoing description, together with details of the structures and functions of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in matters of shape, size, and arrangement of parts within the principles of the invention to the full extent indicated by the broad general meaning of the terms where the appended claims are expressed.