CN213906864U

CN213906864U - Wearable equipment and microphone waterproof sealing structure thereof

Info

Publication number: CN213906864U
Application number: CN202022856905.2U
Authority: CN
Inventors: 刘顺群
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2020-12-02
Filing date: 2020-12-02
Publication date: 2021-08-06
Anticipated expiration: 2030-12-02

Abstract

The utility model discloses a waterproof seal structure of microphone, including set up the installing support on shells inner wall, set up in the casing and be located the inboard microphone module of installing support, attached in the waterproof sound-permeable membrane on installing support outside surface, set up on the installing support with microphone module and the casing on the logical sound hole of the sound hole intercommunication of seting up, and waterproof sound-permeable membrane covers the logical sound hole. So, because waterproof sound-transmitting membrane is attached on the outside surface of installing support, consequently when external water pressure increases, water pressure direct action is in waterproof sound-transmitting membrane's surface, make waterproof sound-transmitting membrane to the outside surface pressure of installing support inseparabler, the gap between the two is just littleer, visible water pressure's increase has positive effect to a certain extent to waterproof sound-transmitting membrane's waterproof function, can prevent to produce the gap of leaking when water pressure increases, avoid appearing the short circuit risk of intaking. The utility model discloses still disclose a wearable equipment, its beneficial effect as above.

Description

Wearable equipment and microphone waterproof sealing structure thereof

Technical Field

The utility model relates to a wearable equipment technical field, in particular to microphone waterproof sealing structure. The utility model discloses still relate to a wearable equipment.

Background

With the development of the electronic technology in China, more and more electronic devices have been widely used.

To wearable equipment with microphone function, especially the intelligent wearing product of high waterproof grade, for example wrist-watch, bracelet etc. microphone seal structure design is especially sensitive, and cotton pressure of bubble too big often can lead to acoustic performance unstable, and the cotton pressure of bubble is not enough often can cause waterproof unusual again.

Most waterproof products in the market require high-level waterproof, wherein the first waterproof device is a microphone, the microphone is mainly sealed by a waterproof sound-transmitting membrane and glue, and the tightness determines whether the whole earphone can meet the high-level waterproof requirement.

In prior art, the waterproof sound-transmitting membrane of microphone is usually installed in the periphery of module chip, has certain clearance, when water pressure is less, can guarantee normal waterproof performance, and when water pressure is great, under hydraulic effect, the waterproof sound-transmitting membrane can produce the deformation skew, and water pressure is big more, and the offset is big more, and then leads to waterproof sound-transmitting membrane and the connected interface of spare part on every side to appear the gap, causes the microphone to intake risks such as short circuit.

Therefore, how to prevent the water leakage gap from being generated when the water pressure is increased and avoid the risk of water inlet short circuit under the condition of high water pressure is a technical problem faced by the technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a waterproof sealing structure of microphone can prevent to produce the gap of leaking when the water pressure increase, avoids appearing the short circuit risk of intaking under the great condition of water pressure. Another object of the utility model is to provide a wearable equipment.

In order to solve the technical problem, the utility model provides a waterproof sealing structure of microphone, including set up installing support on shells inner wall, set up in be located in the casing the inboard microphone module of installing support, attached in the waterproof sound-permeable membrane on installing support outside surface, set up on the installing support with the microphone module reaches the logical sound hole of the sound hole intercommunication of seting up on the casing, just waterproof sound-permeable membrane covers logical sound hole.

Preferably, the microphone module is mounted on the surface of the PCB, and the bottom surface of the PCB is closely attached to the inner side surface of the mounting bracket; the PCB is provided with a via hole, and the via hole is communicated with the sound through hole.

Preferably, the PCB is connected to the inner wall of the housing by a plurality of fasteners.

Preferably, a sealing layer is padded between the bottom surface of the PCB and the inner side surface of the mounting bracket.

Preferably, a waterproof layer is padded between the outer ring area of the outer side surface of the mounting bracket and the inner wall of the shell.

Preferably, an installation groove is formed in the inner ring area on the outer side surface of the installation support, and the waterproof sound-transmitting membrane is attached to the groove bottom surface of the installation groove.

Preferably, the waterproof sound-transmitting membrane is adhered to the bottom surface of the mounting groove by waterproof glue.

Preferably, an elastic support ring is padded between the outer side surface of the waterproof sound-transmitting membrane and the inner wall of the shell.

Preferably, the elastic support ring is adhered to the inner wall of the housing by waterproof glue.

The utility model also provides a wearable equipment, including the casing with set up in microphone waterproof sealing structure in the casing, wherein, microphone waterproof sealing structure specifically is above-mentioned arbitrary microphone waterproof sealing structure.

The utility model provides a waterproof sealing structure of microphone mainly includes installing support, microphone module and waterproof sound-transmitting membrane. The mounting support is arranged on the inner wall of the shell and is mainly used for mounting the microphone module, the mounting support is provided with a sound through hole, the sound through hole is communicated with a sound inlet hole formed in the shell, sound can be allowed to pass through the sound through hole and then reach the microphone module along the sound through hole, and transmission of the sound from outside to inside is achieved. The microphone module is arranged in the shell and positioned at the inner side of the mounting bracket, and is mainly used for receiving sound transmitted from the sound through hole on the mounting bracket and realizing sound sampling. The waterproof sound-transmitting membrane is attached to the surface of the outer side of the mounting support, covers the sound-transmitting hole, seals the sound-transmitting hole, and mainly plays roles in water resistance and sound transmission, namely, on the basis of preventing external liquid from entering the sound-transmitting hole from the sound-transmitting hole, external sound is allowed to enter the sound-transmitting hole from the sound-transmitting hole. So, because waterproof sound-transmitting membrane is attached on the outside surface of installing support, and the microphone module is located the inboard of installing support, consequently when external water pressure increases, water pressure is through the surface of the direct action of waterproof sound-transmitting membrane behind the sound inlet hole for waterproof sound-transmitting membrane gets inseparabler to the outside surface pressure of installing support, and the gap between the two is just littleer, and visible water pressure's increase has positive effect to a certain extent to waterproof sound-transmitting membrane's waterproof function. Therefore, the utility model provides a waterproof sealing structure of microphone can prevent to produce the gap of leaking when the water pressure increase, avoids appearing the short circuit risk of intaking under the great condition of water pressure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of a specific embodiment of the present invention.

Fig. 2 is an exploded view of the structure of fig. 1.

Wherein, in fig. 1-2:

the microphone module comprises a shell-1, a mounting bracket-2, a microphone module-3, a waterproof sound-transmitting film-4, a PCB-5, a fastener-6, a sealing layer-7, a waterproof layer-8 and an elastic support ring-9;

sound inlet-11, erection column-12, sound through-hole-21, mounting groove-22, via hole-51, mounting hole-52.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and fig. 2, fig. 1 is a schematic diagram of an overall structure of an embodiment of the present invention, and fig. 2 is an exploded view of the structure of fig. 1.

The utility model provides an among the specific embodiment, waterproof seal structure of microphone mainly includes installing support 2, microphone module 3 and waterproof sound-permeable membrane 4.

The mounting bracket 2 is arranged on the inner wall of the shell 1 and is mainly used for mounting the microphone module 3, the mounting bracket 2 is provided with a sound through hole 21, the sound through hole 21 is mutually communicated with the sound inlet hole 11 arranged on the shell 1, sound can be allowed to pass through the sound through hole 11 and then reach the microphone module 3 along the sound through hole 21, and transmission of the sound from outside to inside is realized.

The microphone module 3 is disposed in the housing 1 and located inside the mounting bracket 2, and is mainly used for receiving sound transmitted from the sound through hole 21 on the mounting bracket 2, so as to implement sound sampling.

The waterproof sound-transmitting membrane 4 is attached to the outer side surface of the mounting bracket 2, covers the sound-transmitting hole 21, seals the sound-transmitting hole 21, and mainly plays a role in waterproofing and sound transmission, namely, prevents external liquid from entering the sound-transmitting hole 21 from the sound-transmitting hole 11 and allows external sound to enter the sound-transmitting hole 21 from the sound-transmitting hole 11.

So, because waterproof sound-transmitting membrane 4 is attached on the outside surface of installing support 2, and microphone module 3 is located the inboard of installing support 2, consequently when external water pressure increases, water pressure is through advancing the surface of direct action at waterproof sound-transmitting membrane 4 behind the phonate hole 11 for waterproof sound-transmitting membrane 4 gets inseparabler to the outside surface pressure of installing support 2, the gap between the two is just littleer, visible water pressure's increase has positive effect to a certain extent to waterproof sound-transmitting membrane 4's waterproof function.

Therefore, the waterproof sealing structure of the microphone provided by the embodiment can prevent the water leakage gap from being generated when the water pressure is increased, and the risk of water inlet short circuit is avoided under the condition of large water pressure.

In order to realize the signal connection between the microphone module 3 and other electronic components, the PCB5 is added in this embodiment. Specifically, the microphone module 3 is mounted on the surface of the PCB5, for example, by Surface Mount Technology (SMT), or the like. Meanwhile, the bottom surface of the PCB5 is closely attached to the inner side surface of the mounting bracket 2, so that the microphone module 3 is mounted on the mounting bracket 2 using the PCB 5. In order to avoid obstructing the microphone module 3 from sampling the sound signal, the PCB5 is provided with a through hole 51, and the through hole 51 is communicated with the sound through hole 21 on the mounting bracket 2, so that the external sound can pass through the sound inlet hole 11, the sound through hole 21 and the through hole 51 in sequence and then reach the microphone module 3.

Further, to facilitate the assembly and disassembly operations of the PCB5 in the housing 1, in this embodiment, the PCB5 is connected to the inner wall of the housing 1 by a plurality of fasteners 6. Generally, the fastening member 6 may be a bolt, a screw, a rivet, etc., and 2 to 4 mounting holes 52 may be uniformly formed on the PCB5 to be engaged with the fastening member 6. Correspondingly, a plurality of mounting posts 12 can be protruded from the inner wall of the housing 1 to facilitate the installation of the end of each fastener 6 into the corresponding mounting post 12.

Although the bottom surface of the PCB5 is closely attached to the inner surface of the mounting bracket 2, the bottom surface of the PCB5 is scribed with circuits, pads, etc. to form an uneven surface structure, which results in a gap with the mounting bracket 2. In this regard, the present embodiment also provides a gasket 7 between the bottom surface of the PCB5 and the inside surface of the mounting bracket 2. Specifically, the sealing layer 7 may be a sealing foam, a sealant, or the like.

In addition, considering that the outer surface of the mounting bracket 2 is closely attached to the inner wall of the casing 1, but a gap may be formed therebetween, the waterproof layer 8 is interposed between the outer circumferential region of the outer surface of the mounting bracket 2 and the inner wall of the casing 1. Specifically, the waterproof layer 8 may be waterproof foam, a waterproof pad, or the like.

Further, in order to facilitate the attaching installation of the waterproof sound-transmitting membrane 4 on the mounting bracket 2, the mounting groove 22 is further formed in the inner ring region of the outer side surface of the mounting bracket 2 in the present embodiment. With this arrangement, the waterproof sound-transmitting membrane 4 can be attached to the bottom surface of the mounting groove 22. Of course, the bottom surface of the mounting groove 22 is communicated with the sound through hole 21, and the sound through hole 21 is generally located in the central region of the mounting groove 22.

In addition, considering that the thickness of the waterproof sound-transmitting membrane 4 is generally thin and a certain distance exists between the groove bottom surface of the installation groove 22 and the inner wall of the shell 1, in order to ensure that the waterproof sound-transmitting membrane 4 can be pressed on the groove bottom surface of the installation groove 22, the elastic support ring 9 is additionally arranged in the embodiment. Specifically, the elastic support ring 9 is disposed between the waterproof sound-transmitting membrane 4 and the inner wall of the housing 1, and supports the waterproof sound-transmitting membrane 4 while pressing the waterproof sound-transmitting membrane 4 against the bottom surface of the groove by using its elastic deformation characteristic. In general, the specific pressure of the resilient support ring 9 against the waterproof sound-transmitting membrane 4 may be adjusted in combination with the sound-transmitting functional requirements, while the pressure of the resilient support ring 9 against the waterproof sound-transmitting membrane 4 may be adjusted with the respective fasteners 6 on the PCB 5.

In addition, in order to further improve the sealing performance of the structure, in this embodiment, the waterproof sound-transmitting membrane 4 may be stuck to the groove bottom surface of the mounting groove 22 through a waterproof adhesive, and the waterproof adhesive layer is activated by pressure maintaining. In the same way, the elastic support ring 9 can be adhered to the inner wall of the shell 1 through waterproof glue, and the waterproof glue layer is activated through pressure maintaining. So set up, through the effect of waterproof glue, can prevent effectively that the gap from producing between installing support 2 and the casing 1 inner wall, between waterproof sound-transmitting membrane 4 and the mounting groove 22.

The embodiment further provides a wearable device, which mainly comprises a housing 1 and a microphone waterproof sealing structure arranged in the housing 1, wherein the specific content of the microphone waterproof sealing structure is the same as the related content, and the details are not repeated here. The wearable device is a product with requirements on waterproof grade, such as a watch, a bracelet, an earphone, a ring and the like.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The waterproof sealing structure of the microphone is characterized by comprising a mounting support (2) arranged on the inner wall of a shell (1), a microphone module (3) arranged in the shell (1) and positioned on the inner side of the mounting support (2), and a waterproof sound-transmitting membrane (4) attached to the outer side surface of the mounting support (2), wherein sound through holes (21) communicated with the microphone module (3) and sound inlet holes (11) formed in the shell (1) are formed in the mounting support (2), and the waterproof sound-transmitting membrane (4) covers the sound through holes (21);

the microphone module (3) is arranged on the surface of the PCB (5), and the bottom surface of the PCB (5) is tightly attached to the inner side surface of the mounting bracket (2); a through hole (51) is formed in the PCB (5), and the through hole (51) is communicated with the sound through hole (21).

2. Microphone waterproof and sealing structure according to claim 1, characterized in that the PCB (5) is connected to the inner wall of the housing (1) by means of several fasteners (6).

3. The waterproof and sealing structure of a microphone according to claim 1, wherein a sealing layer (7) is padded between the bottom surface of the PCB (5) and the inner side surface of the mounting bracket (2).

4. The waterproof and sealing structure of the microphone according to claim 1, wherein a waterproof layer (8) is padded between the outer circumference area of the outer side surface of the mounting bracket (2) and the inner wall of the housing (1).

5. The waterproof and sealing structure of claim 4, wherein the mounting bracket (2) has a mounting groove (22) formed in the inner ring region of the outer surface thereof, and the waterproof sound-transmitting membrane (4) is attached to the bottom surface of the mounting groove (22).

6. The waterproof and sealing structure of a microphone according to claim 5, wherein the waterproof sound-transmitting membrane (4) is adhered to the bottom surface of the mounting groove (22) by waterproof glue.

7. Microphone waterproof sealing structure according to any of claims 1-6, characterized by that, an elastic support ring (9) is padded between the outer side surface of the waterproof sound-transmitting membrane (4) and the inner wall of the housing (1).

8. The waterproof and sealing structure of the microphone according to claim 7, wherein the elastic support ring (9) is adhered to the inner wall of the housing (1) by waterproof glue.

9. Wearable device comprising a housing (1) and a waterproof and sealed microphone structure arranged in the housing (1), characterized in that the waterproof and sealed microphone structure is in particular a waterproof and sealed microphone structure according to any of claims 1-8.