CN215010634U

CN215010634U - Microphone waterproof construction

Info

Publication number: CN215010634U
Application number: CN202120728584.XU
Authority: CN
Inventors: 尚越
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2021-04-09
Filing date: 2021-04-09
Publication date: 2021-12-03
Anticipated expiration: 2031-04-09

Abstract

The application discloses microphone waterproof construction, including the shell, the shell is equipped with the shell sound hole, and the inside of shell is equipped with sound module, gland and the water proof membrane who shelters from the shell sound hole, and the gland is located between sound module and the water proof membrane, and one side and the water proof membrane laminating of gland compress tightly the water proof membrane at the inside wall of shell, have the clearance between the opposite side of gland and the sound module. The waterproof structure of the microphone provided by the application utilizes the gland to flatly press the waterproof membrane in the shell, so that the flatness of the waterproof membrane is guaranteed; simultaneously set up the clearance between gland and sound module, avoid the water proof membrane to receive sound module's excessive extrusion and great deformation appears, realized avoiding the impaired effect of sound module acoustic performance.

Description

Microphone waterproof construction

Technical Field

The application relates to the technical field of microphones, in particular to a waterproof structure of a microphone.

Background

With the rapid development of electronic technology, intelligent electronic devices are an important component of intelligent homes. More and more intelligent electronic devices are equipped with voice functions, and therefore, a microphone is required to be arranged on the intelligent electronic devices.

A microphone generally includes a housing with a sound hole and a sound module for generating sound. To the intelligent electronic device that has waterproof requirement, the inside of shell needs the fixed waterproof membrane of bonding to the sound hole of shell is sheltered from to the waterproof membrane.

For the waterproof test of IPX5 or other grades, require to carry out the test of soaking for a long time, or directly utilize rivers impact sound hole, the glue film of waterproof membrane appears the problem that the debonding drops easily under the soaking of water or the impact, leads to waterproof inefficacy, and then leads to the sound module impaired. In addition, the waterproof membrane needs to be kept flat after being assembled, and if the waterproof membrane is deformed greatly, the acoustic performance of the sound module is lost, especially the acoustic performance of a high frequency band is lost.

In summary, how to avoid the impairment of the acoustic performance of the microphone is a problem to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present application is to provide a waterproof structure for a microphone, which utilizes a pressing cover to press a waterproof membrane to the inside of a housing in a flat manner, so as to ensure the flatness of the waterproof membrane; and meanwhile, a gap is formed between the gland and the sound module, so that the waterproof membrane is prevented from being deformed due to excessive extrusion of the sound module, and the acoustic performance of the sound module is prevented from being damaged.

In order to achieve the above purpose, the present application provides the following technical solutions:

the utility model provides a microphone waterproof construction, includes the shell, the shell is equipped with the shell sound hole, the inside of shell is equipped with sound module, gland and shelters from the water proof membrane of shell sound hole, the gland is located sound module with between the water proof membrane, one side of gland with the water proof membrane laminating and will the water proof membrane compresses tightly the inside wall of shell, the opposite side of gland with the clearance has between the sound module.

Optionally, the gland is provided with a gland sound hole corresponding to the position of the shell sound hole.

Optionally, the inner side wall of the housing is fixed to the gland in a clamping manner.

Optionally, the sound module is provided with a mounting seat step surface facing the gland, and the inner side wall of the housing is provided with a housing step surface supporting the mounting seat step surface.

Optionally, the sound module includes a microphone and a mounting seat provided with the mounting seat step surface, the microphone is located on one side of the mounting seat back from the gland, the mounting seat step surface and the housing step surface are both annular, and the mounting seat step surface is connected with the housing step surface in a sealing manner.

Optionally, the step surface of the housing is fixedly bonded with the step surface of the mounting seat.

Optionally, the mounting seat step surface and the housing step surface are fixed by bonding with an annular double-sided adhesive tape.

Optionally, the mounting seat is an elastic structural member.

Optionally, the mounting seat is provided with a mounting seat sound hole corresponding to the position of the housing sound hole.

Optionally, the mounting seat is provided with a mounting seat mounting groove on one side deviating from the gland, and the microphone is arranged in the mounting seat mounting groove.

Through above-mentioned scheme, the microphone waterproof construction that this application provided's beneficial effect lies in:

the application provides a microphone waterproof construction includes the shell, and the inside of shell is equipped with sound module, water proof membrane and is located the gland between the two, and one side and the water proof membrane laminating of gland have the clearance between the opposite side of gland and the sound module.

In the use, the waterproof membrane shelters from the shell sound hole of seting up on the shell, and gland laminating waterproof membrane to compress tightly the waterproof membrane at the inside wall of shell, the gland can bear certain water pressure, avoids the waterproof membrane to soak for a long time or receive behind the water impact that the inside wall from the shell drops, ensures the roughness of waterproof membrane, and then ensures the water-proof effects of waterproof membrane. Simultaneously, have the clearance between gland and the sound module, at the in-process of adjusting sound module pressure, the pressure that the sound module received can not be acted on the gland, and then avoids the water proof membrane to receive the excessive extrusion of sound module and great deformation appears, avoids sound module loss acoustic performance.

Drawings

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

Fig. 1 is a cross-sectional view of a waterproof structure of a microphone according to an embodiment of the present disclosure;

fig. 2 is a partially enlarged view of a in fig. 1.

The reference numbers in the figures are: the sound module comprises a shell 1, a shell sound hole 11, a sound module 2, a microphone 21, a mounting seat 22, a mounting seat sound hole 222, a gland 3, a gland sound hole 31, a waterproof membrane 4 and double-sided adhesive tape 5.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 and 2, the present application provides a waterproof microphone structure including a case 1, a sound module 2, a cover 3, and a waterproof membrane 4.

Wherein the housing 1 is provided with mounting grooves for receiving the sound module 2, the cover 3 and the waterproof membrane 4. The shell 1 is also provided with a shell sound hole 11, and the shell sound hole 11 is opposite to the sound emitting position of the sound module 2, so that the sound module 2 can emit sound to the outside conveniently.

The sound module 2 is held fixed to the housing 1 by bolts, clamps or other kind of compression structure.

The waterproof film 4 covers the case sound hole 11 and shields the case sound hole 11, preventing water from entering the inside of the case 1 through the case sound hole 11. In order to improve the fixing firmness of the waterproof membrane 4 and the housing 1, the waterproof membrane 4 and the inner side wall of the housing 1 may be fixed by bonding.

Gland 3 is the platelike structure, and gland 3 keeps fixed connection with shell 1 to gland 3 is located between sound module 2 and the waterproof membrane 4, and the first side and the waterproof membrane 4 laminating of gland 3, and compress tightly waterproof membrane 4 at the inside wall of shell 1, and the second side and the sound module 2 of gland 3 are relative, and have the clearance between the second side and the sound module 2 of gland 3.

The microphone waterproof structure of the structure has the beneficial effects that: waterproof membrane 4 shelters from shell sound hole 11 of seting up on the

shell

1, and 3 laminating waterproof membranes 4 of gland compress tightly waterproof membrane 4 at the inside wall of shell 1, avoid waterproof membrane 4 to drop from the inside wall of shell 1 to gland 3 provides comparatively even effort for waterproof membrane 4, ensures waterproof membrane 4's roughness, ensures waterproof membrane 4's water-proof effects. Simultaneously, at the in-process of installation sound module 2, sound module 2 can receive the effort towards waterproof membrane 4, because have the clearance between gland 3 and the sound module 2, consequently even the pressure that sound module 2 received appears changing, can not cause the influence to waterproof membrane 4 yet, has guaranteed that the acoustics index of sound module 2 does not receive the loss. In addition, the gland 3 has a simple structure and low cost, and does not complicate the stacking layer structure between the sound module 2 and the housing 1.

Optionally, in an embodiment, the microphone waterproof structure further includes a compression structure, the compression structure specifically includes a microphone board, the microphone board is covered at an opening of the mounting groove of the housing 1, the microphone board and the housing 1 may be fixed by a bolt, and the microphone board seals the sound module 2 in the mounting groove of the housing 1. Meanwhile, the sound module 2 needs to be equipped with a Circuit Board, and the sound module 2 of some models may adopt a FPCB (Flexible Printed Circuit Board), and the microphone Board may also function to support the FPCB.

Further, in one embodiment, the inner side wall of the housing 1 is clamped with the gland 3. Specifically, shell 1 and/or gland 3 are provided with buckle structure, and the two joint is fixed, need not to utilize bolt or other part fastening, and it is more convenient to assemble. When gland 3 and the equipment of shell 1, the buckle structure produces slight elastic deformation, treats that gland 3 assembles the back of putting, and the buckle automatic re-setting makes

gland

3 and 1 chucking of shell fixed. When needing to reprocess the membrane that drains, simple convenient dismantlement gland 3.

Further, in one embodiment, the sound module 2 is provided with a mount step surface facing the gland 3, the inner side wall of the housing 1 is provided with a housing step surface, and the housing step surface supports the mount step surface. Specifically, in the process of installing the sound module 2 in the installation groove of the housing 1, the sound module 2 needs to be pressed down toward the gland 3, and particularly, in the case that the microphone waterproof structure includes a microphone board, the microphone board can also press the sound module 2 toward the gland 3 after the microphone board is installed. Because the mounting seat step surface is supported by the shell step surface, the shell step surface can limit the sound module 2, and the gap between the sound module 2 and the gland 3 is kept.

Further, in an embodiment, the sound module 2 comprises a microphone 21 and a mounting seat 22, and the mounting seat step surface of the sound module 2 is specifically arranged on the mounting seat 22. The microphone 21 is located on one side of the mounting seat 22, which is far away from the gland 3, the mounting seat step surface and the shell step surface are both annular, and the mounting seat step surface is connected with the shell step surface in a sealing manner.

When a waterproof test is carried out, or after the microphone waterproof structure contacts water in the wearing process of a user, if water enters the shell 1 through the shell sound hole 11, the step surface of the mounting seat is hermetically connected with the step surface of the shell, and the microphone 21 is isolated between the pressing covers 3 through the mounting seat 22, so that the water can be prevented from entering the microphone 21 through the mounting seat 22, and the microphone 21 is prevented from being damaged by water entering.

Sealing between the mounting seat step surface and the shell step surface can be realized through various modes.

For example, in one embodiment, the mount step surface may be pressed against the housing step surface by directly pressing down on the mount 22 using a pressing structure and/or indirectly pressing down on the mount 22 by pressing down on the microphone 21.

For another example, in another embodiment, the mounting base 22 is a resilient structural member. Specifically, the mounting seat 22 is made of rubber or other elastic materials, a certain pressure is controlled between the step surface of the mounting seat and the step surface of the housing, and sealing is achieved through the elasticity of the step surface of the mounting seat.

For another example, in another embodiment, the stepped surface of the housing and the stepped surface of the mounting seat are fixed by gluing, double-sided tape 5, or other means, and sealing is achieved by gluing. Optionally, the step surface of the mounting base and the step surface of the housing are fixed by bonding with an annular double-sided adhesive tape 5. Compared with glue, the double-sided adhesive tape 5 does not need to control the glue dispensing amount, and the annular double-sided adhesive tape 5 can improve the uniformity of glue distribution on the step surface of the mounting base.

It will be appreciated that the various embodiments described above for achieving a seal between the mount land and the housing land do not conflict and that the various embodiments may be used in combination.

For another example, in another embodiment, a seal is disposed between the seat step surface and the housing step surface, and the seal may be embodied as a seal ring.

Further, in an embodiment, the mount 22 is provided with a mount mounting slot at a side facing away from the gland 3, in which mount mounting slot the microphone 21 is provided. The mounting seat 22 is fitted to the outside of the microphone 21 to position the mounting position of the microphone 21.

Further, in one embodiment, in order to facilitate the sound module 2 to emit sound to the outside, a sound hole may be further provided. For example, the gland 3 may be provided with a gland sound hole 31 corresponding to the casing sound hole 11, and/or the mount 22 may be provided with a mount sound hole 222 corresponding to the casing sound hole 11.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The microphone waterproof structure provided by the present application is described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.

Claims

1. The utility model provides a microphone waterproof construction, its characterized in that, includes shell (1), shell (1) is equipped with shell sound hole (11), the inside of shell (1) is equipped with sound module (2), gland (3) and shelters from waterproof membrane (4) of shell sound hole (11), gland (3) are located sound module (2) with between waterproof membrane (4), one side of gland (3) with waterproof membrane (4) laminating and will waterproof membrane (4) compress tightly the inside wall of shell (1), the opposite side of gland (3) with the clearance has between sound module (2).

2. Microphone waterproofing structure according to claim 1, wherein the gland (3) is provided with a gland sound hole (31) corresponding to the position of the case sound hole (11).

3. The waterproof microphone structure according to claim 1, wherein the inner side wall of the housing (1) is fixed to the gland (3) in a clamping manner.

4. The waterproof microphone structure according to any one of claims 1 to 3, wherein the sound module (2) is provided with a mount step surface facing the cover (3), and an inner side wall of the housing (1) is provided with a housing step surface supporting the mount step surface.

5. Microphone waterproofing structure according to claim 4, wherein the sound module (2) comprises a microphone (21) and a mounting seat (22) provided with the mounting seat step surface, the microphone (21) is located on the side of the mounting seat (22) facing away from the gland (3), the mounting seat step surface and the housing step surface are both annular, and the mounting seat step surface is connected with the housing step surface in a sealing manner.

6. The waterproof microphone structure according to claim 5, wherein the stepped surface of the housing and the stepped surface of the mount are adhesively fixed.

7. The waterproof microphone structure according to claim 6, wherein the mount step surface and the housing step surface are adhesively fixed by an annular double-sided adhesive tape (5).

8. Microphone waterproofing structure according to claim 5, wherein the mounting seat (22) is an elastic structural member.

9. Microphone waterproofing structure according to claim 5, wherein the mount (22) is provided with a mount sound hole (222) corresponding to the position of the case sound hole (11).

10. Microphone waterproofing structure according to claim 5, wherein the mount (22) is provided with a mount mounting groove in a side facing away from the gland (3), the microphone (21) being provided in the mount mounting groove.