Wearable device and acoustic module waterproof protection mechanism thereof

Patent metadata

Field	Value
Publication number	US-12445758-B2
Application number	US-202118256477-A
Country	US
Kind code	B2
Filing date	Aug 25, 2021
Priority date	Dec 8, 2020
Publication date	Oct 14, 2025
Grant date	Oct 14, 2025

Abstract

The present invention discloses an acoustic module waterproof protection mechanism, including an acoustic module arranged in a housing, an acoustic port provided on an outer wall of the housing and communicating with the acoustic module, a waterproof sound-permeable membrane arranged on an inner wall of the housing and covering the acoustic port, the an acoustic module waterproof protection mechanism further includes a waterproof valve assembly embedded in a hole wall of the acoustic port in a stretchable manner, which is used to stretch into the acoustic port to block the acoustic port when an external water pressure is greater than an air pressure in the housing.

First claim

What is claimed is:

1. An acoustic module waterproof protection mechanism, comprising:
an acoustic module provided in a housing;
an acoustic port provided on an outer wall of the housing and communicated with the acoustic module; and
a waterproof sound-permeable membrane provided on an inner wall of the housing and covering the acoustic port,
wherein the acoustic module waterproof protection mechanism further includes a waterproof valve assembly embedded in a wall of the acoustic port in a stretchable manner, and the waterproof valve assembly is used to stretch into the acoustic port to block the acoustic port when an external water pressure is greater than an air pressure in the housing,
wherein the waterproof valve assembly comprises a valve cavity provided in the wall of the acoustic port and a piston rod provided in the valve cavity in a stretchable manner, and
wherein a rod cavity of the valve cavity communicates with an inside of the housing, and a rod-less cavity of the valve cavity communicates with an outside of the housing.

2. The acoustic module waterproof protection mechanism according to claim 1 , wherein a resetting spring is sleeved on a rod end of the piston rod, and one end of the resetting spring abuts on an inner wall of the valve chamber, and the other end of the resetting spring abuts on an inner end surface of a head end of the piston rod.

3. The acoustic module waterproof protection mechanism according to claim 1 , wherein a sealing ring is sleeved on an outer edge surface of a head end of the piston rod to seal a gap between the outer edge surface of the head end of the piston rod and an inner wall of the valve cavity.

4. The acoustic module waterproof protection mechanism according to claim 1 , wherein an end cross-sectional shape of a rod end of the piston rod is the same as a cross-sectional shape of the acoustic port.

5. The acoustic module waterproof protection mechanism according to claim 1 , wherein a rod end of the piston rod is elastic.

6. The acoustic module waterproof protection mechanism according to claim 1 , wherein the wall of the acoustic port is a smooth surface.

7. The acoustic module waterproof protection mechanism according to claim 1 , wherein an inner wall of the valve cavity is a smooth surface.

8. The acoustic module waterproof protection mechanism according to claim 1 , wherein the waterproof valve assembly further comprises an air passage hole provided on the inner wall of the housing and extended to the rod cavity of the valve cavity to be communicated with the rod cavity and a liquid passage hole provided on the outer wall of the housing and extended to the rod-less cavity of the valve cavity to be communicated with the rod-less cavity, and a position where the air passage hole and the valve cavity are communicated is located within a region covered by a stroke of the piston rod.

9. A wearable device comprising a housing and an acoustic module waterproof protection mechanism provided in the housing, wherein the acoustic module waterproof protection mechanism is the acoustic module waterproof protection mechanism according to claim 1 .

Assignees

• Goertek Inc

Inventors

• Yang Qing
• Sui Jianjian

Classifications

• H04R2499/11

  Transducers incorporated or for use in hand-held devices, e.g. mobile phones, PDA's, camera's · CPC title

• H04R1/086

  Protective screens, e.g. all weather or wind screens · CPC title

• H04R1/023 Primary

  Screens for loudspeakers · CPC title

• G04B37/081

  Complete encasings for wrist or pocket watches also comprising means for hermetic sealing of the winding stem and crown (hermetic sealing of the stem or crown G04B37/10) · CPC title

• G04G21/06

  using voice · CPC title