CN210490938U

CN210490938U - Microphone assembly and electronic device

Info

Publication number: CN210490938U
Application number: CN201921927686.3U
Authority: CN
Inventors: 肖寒
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-11-08
Filing date: 2019-11-08
Publication date: 2020-05-08
Anticipated expiration: 2029-11-08
Also published as: WO2021088607A1

Abstract

The application discloses a microphone assembly, which comprises a decorative frame, wherein the decorative frame is a closed ring, and a sound inlet channel is formed in the side wall of the decorative frame; the rear shell is provided with a through groove, and the decoration frame is positioned at the through groove and fixedly connected with the rear shell; microphone module, with backshell and dress escutcheon fixed connection, set up sound collecting part on the microphone module, advance sound channel intercommunication sound collecting part. Specifically, the dress escutcheon is the confined circle, sets up into the sound passageway on the lateral wall of dress escutcheon, sets up logical groove on the backshell, and the dress escutcheon is located logical groove to with backshell fixed connection. The gram module is provided with a sound collecting part, and a sound inlet channel on the decorative frame is communicated with the sound collecting part. By adopting the structure, the sound inlet channel of the microphone assembly is positioned on the side surface of the decorative frame, and before the structural improvement is replaced, the sound inlet hole is arranged on the rear shell of the electronic device and is exposed at the obvious position, so that the electronic device using the microphone assembly is more complete and attractive in appearance. The application also provides an electronic device comprising the microphone assembly.

Description

Microphone assembly and electronic device

Technical Field

The present disclosure relates to electronic devices, and particularly to a microphone assembly and an electronic device.

Background

A microphone assembly is generally installed in an electronic device such as a mobile phone or a tablet computer to collect and process sound. In the technical scheme before the structure improvement, the sound inlet hole corresponding to the microphone assembly is generally arranged on the back of the electronic device or the side wall of the middle frame, so that the sound inlet hole is exposed and is not attractive.

SUMMERY OF THE UTILITY MODEL

The application provides a microphone assembly and an electronic device.

The technical scheme adopted by the application is as follows: there is provided a microphone assembly comprising:

the decorative frame is a closed ring, and a sound inlet channel is formed in the side wall of the decorative frame;

the rear shell is provided with a through groove, and the decoration frame is positioned at the through groove and fixedly connected with the rear shell;

the microphone module is fixedly connected with the rear shell and the decoration frame, a sound pickup part is arranged on the microphone module, and the sound inlet channel is communicated with the sound pickup part.

The application also provides an electronic device, which comprises a camera module and the microphone assembly, wherein the camera module is positioned at the decorative frame and surrounded by the decorative frame.

The application provides a microphone subassembly includes dress escutcheon, the backshell of being connected with dress escutcheon and the microphone module of being connected with backshell and dress escutcheon. Specifically, the dress escutcheon is the confined circle, sets up into the sound passageway on the lateral wall of dress escutcheon, sets up logical groove on the backshell, and the dress escutcheon is located logical groove to with backshell fixed connection. The gram module is provided with a sound collecting part, and a sound inlet channel on the decorative frame is communicated with the sound collecting part. By adopting the structure, the sound inlet channel of the microphone assembly is positioned on the side surface of the decorative frame, and before the structural improvement is replaced, the sound inlet hole is arranged on the rear shell of the electronic device and is exposed at the obvious position, so that the electronic device using the microphone assembly is more complete and attractive in appearance.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a microphone assembly according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a microphone assembly according to another embodiment of the present application;

FIG. 4 is a schematic structural view of a rear housing of the present application in one embodiment;

FIG. 5 is an exploded view of a microphone assembly according to another embodiment of the present application;

FIG. 6 is an exploded view of a microphone assembly according to yet another embodiment of the present application;

fig. 7 is a schematic cross-sectional view of a microphone assembly according to an embodiment of the present invention;

FIG. 8 is an enlarged view of a portion of circle a of FIG. 7 in one embodiment;

FIG. 9 is an exploded view of an embodiment of the present invention showing the structure of the sound input channel and the microphone module;

FIG. 10 is an exploded view of the sound inlet channel and microphone module of the present application in another embodiment;

FIG. 11 is a schematic structural diagram of an electronic device according to another embodiment of the present application;

FIG. 12 is a schematic structural diagram of an electronic device according to yet another embodiment of the present application;

fig. 13 is an enlarged view of a portion a of fig. 7 in another embodiment.

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. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. 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.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The application provides a microphone assembly 100 and an electronic device 200 comprising the microphone assembly 100. Referring to fig. 1, fig. 1 is a schematic structural diagram of a microphone assembly 100 according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of an embodiment of an electronic device 200 according to the present application. Specifically, the electronic apparatus 200 may be any of various types of computer system devices (only one modality is exemplarily shown in fig. 2) that are mobile or portable and perform wireless communication. Specifically, the electronic apparatus 200 may be a mobile phone or a smart phone (e.g., an iPhone (TM) based phone), a portable game device (e.g., Nintendo DS (TM), playstation portable (TM), game Advance (TM), iPhone (TM)), a laptop computer, a PDA, a portable internet device, a music player and a data storage device, other handheld devices and devices such as a headset, etc., and the electronic apparatus 200 may also be other wearable devices that require charging (e.g., a Head Mounted Device (HMD) such as an electronic bracelet, an electronic necklace, an electronic device or a smart watch).

The electronic apparatus 200 may also be any of a number of electronic devices including, but not limited to, cellular phones, smart phones, other wireless communication devices, personal digital assistants, audio players, other media players, music recorders, video recorders, other media recorders, radios, medical devices, vehicle transportation equipment, calculators, programmable remote controllers, pagers, laptop computers, desktop computers, printers, netbook computers, Personal Digital Assistants (PDAs), Portable Multimedia Players (PMPs), moving Picture experts group (MPEG-1 or MPEG-2) Audio layer 3(MP3) players, portable medical devices, and digital cameras and combinations thereof.

In some cases, the electronic device 200 may perform a variety of functions (e.g., playing music, displaying video, storing pictures, and receiving and sending telephone calls). If desired, the electronic apparatus 200 may be a device such as a cellular telephone, media player, other handheld device, wrist watch device, pendant device, earpiece device, or other compact portable device.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a microphone assembly according to another embodiment of the present application. The microphone assembly 100 includes a rear case 10, a decoration frame 20 connected to the rear case 10, and a microphone module 30 fixedly connected to the rear case 10 and the decoration frame 20.

Specifically, the rear housing 10 is a rear cover of the electronic device 200, and the rear housing 10 is provided with a through slot 12, as shown in fig. 4, fig. 4 is a schematic structural diagram of the rear housing in an embodiment of the present application. For disposing the decoration frame 20 and the lens 40, as shown in fig. 5 and fig. 6, which are exploded views of the microphone assembly in one embodiment, the lens 40 is located at the outermost layer for protecting the camera module in the electronic device 200. The camera module in the electronic device obtains light outside the electronic device 200 through the lens 40 on the through groove 12 to complete shooting. The camera module is a rear camera of the electronic device 200, and the camera module is located at the decoration frame 20 and surrounded by the decoration frame 20.

Dress escutcheon 20 is the dress circle of camera module for installation lens 40 and protection lens 40 and camera module. Specifically, the bezel 20 is a closed ring, and the side wall of the bezel 20 is provided with a sound inlet channel 22 for transmitting sound to the microphone module 30.

The microphone module 30 is fixedly connected to the rear case 10 and the decoration frame 20, and the microphone module 30 is provided with a sound pickup portion 32, as shown in fig. 7 and 8, fig. 7 is a schematic sectional structure view in a thickness direction of the microphone assembly of the present application, and fig. 8 is an enlarged schematic structural view of a circle a shown in fig. 7. The sound channel 22 on the side wall of the decorative frame 20 is a way for transmitting sound outside the electronic device 200 to the sound pickup portion 32. It can be understood that, in the present application, the inlet of the sound inlet channel 22 of the microphone assembly 100 is located at the side of the decorative frame 20, and instead of before the structural modification, the rear case 10 of the electronic device 200 where the sound inlet hole is located is exposed to a conspicuous position, so that the electronic device 200 using the microphone assembly 100 has a more complete and beautiful appearance.

Optionally, in an embodiment, referring to fig. 9, fig. 9 is an exploded schematic view of a structure of the acoustic channel and the microphone module of the present application. The sound inlet channel 22 includes a sound inlet port 222, a sound outlet port 224, and a sound transmission channel 226 from the sound inlet port 222 to the sound outlet port 224. Further, in this embodiment, the sound transmission channel 226 is completely located in the sidewall of the decorative frame 20, the sound transmission channel 226 includes a first sound transmission channel 2262 adjacent to and communicated with the sound inlet hole 222 and a second sound transmission channel 2264 adjacent to and communicated with the sound outlet hole 224, and the first sound transmission channel 2262 and the second sound transmission channel 2264 are disposed at an angle, such as a right angle, an obtuse angle, as shown in fig. 10, or an acute angle, which is not limited herein.

It can be understood that, in the present application, the sound inlet channel 22 is formed on the side wall of the decoration frame 20 by adopting the above structure, a sound conduction channel is provided without adding other components, and a closed channel can be formed by using the decoration frame 20 itself without providing too many components in the aspect of sealing. Moreover, the whole sound transmission channel 226 of the sound inlet channel 22 is formed inside the sidewall of the decoration frame 20, the sound inlet hole 222, the sound outlet hole 224, and the sound transmission channel 226 from the sound inlet hole 222 to the sound outlet hole 224 are all inside the sidewall of the decoration frame 20, the first sound transmission channel 2262 does not penetrate through the wall thickness of the sidewall of the decoration frame 20, the air tightness of the sound inlet channel 22 is better, and the collection of sound outside the electronic device 200 is more facilitated.

It is to be understood that the terms "first", "second" and "third" in this application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature.

Specifically, the microphone module 30 is connected with the rear case 10 and the inner side of the deco-frame 20. It can be understood that, in order to make the microphone module 30 and the inner side of the decoration frame 20 have better sealing effect, that is, the position where the sound outlet hole 224 is provided has better sealing effect. In one embodiment, the microphone assembly 100 includes a sealing member 50, as shown in fig. 8, the sealing member 50 is located between the microphone module 30 and the bezel 20, so that the sound inlet channel 22 to the microphone module 30 is a sealed channel. Optionally, in an embodiment, the sealing element 50 is a sealing foam, and in other embodiments, the sealing element 50 may also be an adhesive or a silicone ring, which is not limited herein.

Alternatively, in an embodiment, it is understood that, in order to hide the sound inlet hole 222 on the sidewall of the decoration frame 20 as good as possible from the appearance of the electronic device 200, the aperture of the sound inlet hole 222 is generally made extremely small, for example, 1.5-2.5mm, so that it is visually difficult for a user to perceive, and the sound inlet hole 222 is located at the side of the decoration frame 20, so that the user generally sees the rear case 10 from the back of the electronic device 200, thereby hiding the sound inlet hole 222 better. In order to transmit sound better, in this embodiment, the width of the sound transmission channel 226 gradually increases from the sound inlet hole 222 to the sound outlet hole 224. So that the sound can be rapidly transmitted to the microphone module 30 after entering the interior of the decoration frame 20.

In another embodiment, the sound inlet channel 22 may also be enlarged and then maintain a constant width, which is not limited herein.

Optionally, in an embodiment, the sidewall of the decoration frame 20 is opened with a plurality of sound inlet holes 222. Specifically, a plurality of sound input holes 222 may be connected to the same sound transmission channel 224, and the sound transmission channel 224 is provided with only one sound output hole 226. That is, the sound coming from the outside of the electronic device 200 through the plurality of sound inlet holes 222 is finally transmitted through the same sound transmission channel 224, and the sound is transmitted to the sound pickup portion 32 of the microphone module 30 through the same sound outlet hole 224.

In another embodiment, a plurality of sound inlet holes 222 may be formed in the side wall of the decoration frame 20, a plurality of sound transmission channels 226 may be correspondingly formed in the side wall of the decoration frame 20, and the plurality of sound transmission channels 226 may be communicated with the sound pickup portion 32 of the same microphone module 30. The sound transmitted from the outside of the electronic device 200 into each sound inlet 222 is transmitted to the sound collecting portion 32 of the microphone module 30 through the corresponding sound transmission channel 226.

It can be understood that the bottom of the electronic device 200 is provided with the call microphone module 60, as shown in fig. 11, fig. 11 is a schematic structural diagram of another embodiment of the electronic device of the present application. The voice communication microphone 60 is mainly used for recording, for example, when a call is made, voice of a user is recorded, converted into an electric signal in real time, converted into radio waves and sent out, and the other party receives the radio waves and converts the radio waves into voice, so that communication is realized. In addition, for recording sound by the electronic device 200, such as shooting video, recording voice, music, etc., it is necessary to record sound by the call microphone module 60 disposed at the bottom of the electronic device 200.

The microphone module 30 described in the above embodiments of the present application is a noise reduction microphone, and is used for collecting the sound emitted by the user and the sound in the environment, and filtering the background noise during the call. It can be understood that the sound in the environment is a noise, specifically, the environment sound collected by the microphone module 30 is compared with the sound collected by the call microphone module 60, and the environment sound in the sound collected by the call microphone module 30 is filtered out, so that the user only hears the sound spoken by the user, or the component of the environment noise is reduced.

From another perspective, because the microphone module 30 and the call microphone module 60 are located at different positions, one is located at the bottom of the electronic device 200, and the other is located at the back of the electronic device and located at the top half of the electronic device 200, the audio signals collected by the microphone module 30 and the call microphone module 60 are different. It can be understood that the conversation microphone module 60 is closer to the user's mouth than the microphone module 30, and that more human voice is collected near the mouth and more noise is collected away from the mouth. The difference between the sound volume collected by the two microphone modules is about 6dB, and the processor in the electronic device 200 processes the sound collected by the microphone module 30 and the conversation microphone module 60 to automatically generate sound waves opposite to the noise, so as to actively cancel the noise.

In an embodiment, the bezel 20 is a bar shape, for example, the microphone assembly 100 includes two

microphone modules

30a and 30b, as shown in fig. 12, and fig. 12 is a schematic structural view of an electronic device according to another embodiment of the present disclosure. The two

microphone modules

30a and 30b are respectively disposed at two ends of the decorative frame 20 in the longitudinal direction. By adopting the structure, the two

microphone modules

30a and 30b are respectively arranged at the positions away from each other at a certain distance on the electronic device 200, the environmental sounds collected by the two

microphone modules

30a and 30b are different, and the two

microphone modules

30a and 30b also have partial sounds collected by the user for speaking, so that the two microphone modules can be combined with the communication microphone module 60 at the bottom of the electronic device 200 to form a stereo surrounding effect after the noise components of the different environmental sounds are removed.

Specifically, three or four cameras can be accommodated in the decoration frame 20, so that the distance between the two

microphone modules

30a and 30b is increased, and the three-dimensional surrounding effect is better.

In another embodiment, the sound guide member 70 is disposed inside the decoration frame 20, as shown in fig. 13, fig. 13 is a schematic structural view of a microphone assembly according to another embodiment of the present application. The sound guide member 70 is provided with a sound guide cavity 72, the sound inlet channel 22 penetrates through the side wall of the decorative frame 20 and is communicated with the sound guide cavity 72, and the sound guide cavity 72 is communicated with the sound pickup part 32 of the microphone module 30. It can be understood that, the wall thickness of the decorative frame 20 has certain limitation, so the width of the sound transmission channel 22 has certain limitation, and the sound transmission channel 22 is located in the side wall of the decorative frame 20, the sound transmission channel 226 in the sound transmission channel 22 includes the first sound transmission channel 2262 and the second sound transmission channel 2264 which are arranged at an included angle, the requirement of the opening process of the sound transmission channel 226 is high, and the processing cost is easily increased or the production efficiency is easily reduced. This embodiment adopts above structure, has increased leading sound spare 70 in the inboard of dress escutcheon 20, through leading the setting of sound spare 70 for can set up the bigger leading sound chamber 72 of width, need not consider the less problem of dress escutcheon 20's wall thickness moreover, compare above-mentioned structure, set up the technology in leading sound chamber 72 more simply, reduce the processing degree of difficulty, improve production efficiency.

By adopting the above structure, the sound inlet channel 22 of the microphone assembly 100 is located on the side wall of the decorative frame 20, and before replacing structural improvement, the sound inlet hole 222 is arranged on the rear shell of the electronic device 200 and exposed at a conspicuous position, so that the electronic device 200 using the microphone assembly 100 is more complete and attractive in appearance.

The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.

Claims

1. A microphone assembly, comprising:

2. The microphone assembly as defined by claim 1 wherein the sound input channel comprises a sound input hole, a sound output hole, and a sound transmission channel from the sound input hole to the sound output hole, the sound transmission channel is located entirely in the sidewall of the decorative frame, the sound transmission channel comprises a first sound transmission channel communicated with the sound input hole and a second sound transmission channel communicated with the sound output hole, and the first sound transmission channel and the second sound transmission channel are disposed at an included angle.

3. The microphone assembly of claim 2 comprising a seal between the microphone module and the bezel such that the sound entry channel is a sealed channel to the microphone module.

4. The microphone assembly as defined by claim 2 wherein the width of the sound transmission channel from the sound input hole to the sound output hole is gradually increased or increased and then kept constant.

5. The microphone assembly of claim 2 wherein the sound input port comprises a plurality of sound input ports and the sound transmission channel comprises one sound transmission channel.

6. The microphone assembly as defined by claim 2 wherein the sound inlet and the sound transmission channel each comprise a plurality of sound inlets, the sound inlet corresponds to one sound through channel, and the plurality of sound transmission channels are connected to the same pickup portion of the same microphone module.

7. The microphone assembly as claimed in claim 1, wherein the bezel is elongated, and the microphone assembly comprises two microphone modules respectively disposed at two ends of the bezel in a length direction.

8. The microphone assembly of claim 7 wherein the bezel accommodates three or four cameras to increase the distance between two microphone modules.

9. The microphone assembly as claimed in claim 1, wherein a sound guide member is disposed inside the decorative frame, the sound guide member has a sound guide cavity, the sound inlet channel extends through a sidewall of the decorative frame and is in communication with the sound guide cavity, and the sound guide cavity is in communication with the sound pickup portion of the microphone module.

10. An electronic device, comprising a camera module and the microphone assembly as claimed in any one of claims 1 to 9, wherein the camera module is located at the decorative frame and surrounded by the decorative frame.