CN216437431U

CN216437431U - Microphone assembly and mobile terminal with same

Info

Publication number: CN216437431U
Application number: CN202122822768.5U
Authority: CN
Inventors: 曹双倩
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-11-17
Filing date: 2021-11-17
Publication date: 2022-05-03
Anticipated expiration: 2031-11-17

Abstract

The utility model discloses a microphone subassembly and mobile terminal who has it, the microphone subassembly includes: the microphone comprises a frame body, a sealing element, a protecting element, a microphone and a circuit board, wherein a sound receiving channel is arranged on the frame body, the sealing element is positioned in the frame body and is arranged at one end of the sound receiving channel, at least part of the protecting element covers one side, deviating from the sound receiving channel, of the sealing element, the microphone is arranged on the circuit board, and the circuit board is arranged on one side, deviating from the sealing element, of the protecting element. The utility model discloses a microphone subassembly's simple structure and gas tightness are better.

Description

Microphone assembly and mobile terminal with same

Technical Field

The utility model relates to a mobile communication technology field specifically relates to a microphone subassembly and mobile terminal who has it.

Background

With the development of technology, people have higher and higher requirements on the sound quality of mobile phones. The microphone is used as important radio equipment of mobile phone audio, and determines the quality of the call. In the related art, in order to ensure the audio quality of the device, a sealing layer needs to be disposed between the main board and the frame body to ensure the sealing performance of the sound channel. However, when an operator assembles the main board, the main board may scratch the sealing layer, which may cause the problems of the sealing layer being damaged or misplaced, and thus the air tightness of the sound receiving channel is poor.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, the embodiment of the utility model provides a microphone subassembly that simple structure, gas tightness are better is proposed.

The embodiment of the utility model provides a still provide a mobile terminal.

According to the utility model discloses a microphone subassembly, include: the radio comprises a frame body, wherein a radio channel is arranged on the frame body; the sealing element is positioned in the frame and arranged at one end of the sound receiving channel; the protector at least partially covers one side of the sealing member, which faces away from the sound receiving channel; the microphone is arranged on the circuit board, and the circuit board is arranged on one side of the protection piece, which is far away from the sealing piece.

The utility model discloses a microphone subassembly, through covering at least part protection piece in one side that the sealing member deviates from the radio reception passageway, the circuit board sets up in one side that the protection piece deviates from the sealing member to can avoid cutting the incomplete or problem of dislocation of sealing member that causes because of the circuit board is cut and is rubbed the sealing member when the installation circuit board, improved microphone subassembly's gas tightness, and simple structure is convenient for make and process.

In some embodiments, the protective member is detachably coupled to the sealing member and the circuit board so that the sealing member is attached to the circuit board.

In some embodiments, the protective member is a PET film.

In some embodiments, a pressing area is provided between the sealing element and the circuit board, the protecting element includes a stretching portion and a pressing portion connected with each other, the stretching portion is located outside the pressing area, the pressing portion is located inside the pressing area, and the stretching portion is used for pulling out the pressing portion to the outside of the pressing area.

In some embodiments, the stitching portion includes a first section and a second section, a first end of the second section is connected to the first section, a second end of the second section is connected to the stretching portion, the first section covers the surface of the sealing member, the second section is folded back to a side of the first section facing away from the sealing member, and the stretching portion is configured to sequentially pull out the second section and the first section outside the stitching region.

In some embodiments, the first section is provided with a first adhesive layer for adhering to and separating from the sealing member, and/or the stretching portion is provided with a second adhesive layer for adhering to and separating from the sidewall of the frame body.

In some embodiments, the pressing portion further includes an extension section disposed between the first section and the second section, and a third adhesive layer is disposed on the extension section for facilitating adhesion and separation with the bottom wall of the frame.

In some embodiments, the protective member is provided with a grid section disposed between the sealing member and the circuit board.

In some embodiments, the sound receiving channel includes a first channel and a second channel, a first end of the first channel communicates with the outside of the frame body, a second end of the first channel communicates with a first end of the second channel, the sealing member blocks a second end of the second channel, and a length direction of the first channel is orthogonal to a length direction of the first channel.

According to the utility model discloses a mobile terminal of embodiment, include the microphone subassembly of any one of the above-mentioned embodiments.

According to the utility model discloses a mobile terminal's microphone subassembly's gas tightness is good, simple structure, the equipment of being convenient for.

Drawings

Fig. 1 is an exploded view of a microphone assembly according to an embodiment of the present invention.

Fig. 2 is a cross-sectional view of the protector of the microphone assembly according to the embodiment of the present invention when it is not pulled out.

Fig. 3 is a sectional view of the protector of the microphone assembly according to the embodiment of the present invention, which is about to be pulled out.

Fig. 4 is a partial cross-sectional view of a microphone assembly in accordance with an embodiment of the present invention.

Reference numerals:

1. a frame body; 11. a radio channel; 111. a first channel; 112. a second channel;

2. a seal member;

3. a protective member; 31. a stretching section; 311. a second adhesive layer; 32. a press-fit portion; 321. a first stage; 3211. a first adhesive layer; 322. a second stage; 323. an extension section; 3231. a third adhesive layer;

4. a microphone;

5. a circuit board.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

A microphone assembly and a mobile terminal having the same according to embodiments of the present invention are described below with reference to the accompanying drawings.

As shown in fig. 1 to 4, a microphone assembly according to an embodiment of the present invention includes: frame 1, seal 2, protector 3, microphone 4 and circuit board 5. The frame body 1 is provided with a sound receiving channel 11, the sealing member 2 is located in the frame body 1 and is arranged at one end (the upper end of the sound receiving channel 11 in fig. 2) of the sound receiving channel 11, at least a part of the protection member 3 covers one side (the upper side of the sealing member 2 in fig. 2) of the sealing member 2, which is away from the sound receiving channel 11, the microphone 4 is arranged on the circuit board 5, and the circuit board 5 is arranged at one side (the upper side of the protection member 3 in fig. 2) of the protection member 3, which is away from the sealing member 2.

The utility model discloses a microphone subassembly, through covering at least part of protection piece 3 in the one side that sealing member 2 deviates from radio reception passageway 11, circuit board 5 sets up in the one side that protection piece 3 deviates from sealing member 2, thereby when installation circuit board 5, circuit board 5 can contact with protection piece 3 earlier, thereby circuit board 5 can not cut the scratch to the fingers to sealing member 2, just also avoided cutting the incomplete or dislocation problem of sealing member 2 that the scratch caused because of circuit board 5, the gas tightness of microphone subassembly has been improved, and moreover, the steam generator is simple in structure, and is convenient for make and process.

In some embodiments, as shown in fig. 1 to 4, the protector 3 is detachably attached to the packing 2 and the circuit board 5 so that the packing 2 is attached to the circuit board 5, and it will be understood that the protector 3 is detachably attached to the packing 2 and the circuit board 5 so that the installation and separation of the protector 3 are facilitated. For example, after the microphone assembly is assembled, the protector 3 may be drawn away from between the packing 2 and the circuit board 5 so that the circuit board 5 and the packing 2 may be in direct contact, thereby improving the airtightness of the microphone assembly.

Alternatively, the protector 3 is a PET film, in other words, the protector 3 is a mylar sheet. It is understood that MYLAR (MYLAR sheet) PET polyester film is a film formed by heating dimethyl terephthalate and ethylene glycol with the aid of an associated catalyst, and subjecting the film to transesterification and vacuum polycondensation, and biaxial stretching. The sealing member 2 may be a sealing foam, so that the assembly and the separation of the protection member 3 and the sealing member 2 are facilitated, and the practicability is good.

In some embodiments, as shown in fig. 1 to 4, a nip (not shown) is provided between the sealing member 2 and the circuit board 5, the protection member 3 includes a stretching portion 31 and a nip 32 connected with each other, the stretching portion 31 is located outside the nip, the nip 32 is located inside the nip, and the stretching portion 31 is used for pulling out the nip 32 to the outside of the nip. It will be appreciated that when assembling the microphone assembly, the protector 3 is first placed on the sealing member 2, and then the circuit board 5 is adjusted and assembled. After the circuit board 5 is assembled, the operator can pull the stretching part 31 by hand, and then can drive the pressing part 32 to be drawn away from the pressing area, and further make the sealing element 2 and the circuit board 5 attached, thereby avoiding the problem of damage of the sealing element 2 caused when the circuit board 5 is directly assembled, improving the air tightness of the microphone assembly, and having simple operation and high fault tolerance.

Specifically, as shown in fig. 4, the stitching portion 32 includes a first section 321 and a second section 322, the first section 321 covers the surface of the sealing member 2, and the second section 322 is folded back to the side of the first section 321 facing away from the sealing member 2. A first end of the second segment 322 (e.g., a right end of the second segment 322 in fig. 4) is connected to the first segment 321, a second end of the second segment 322 (e.g., a left end of the second segment 322 in fig. 4) is connected to the stretching portion 31, and the stretching portion 31 is used for sequentially pulling out the second segment 322 and the first segment 321 outside the stitching region. It can be understood that when the protection member 3 needs to be pulled away from between the sealing member 2 and the circuit board 5, the operator can move the second section 322 and the first section 321 along the direction of the arrow in fig. 4 by lifting the stretching portion 31 with hands, so as to avoid the problem that the sealing member 2 is displaced or damaged due to the pulling away of the protection member 3, and further improve the air tightness of the microphone assembly.

As shown in fig. 1 and 4, the first section 321 is provided with a first adhesive layer 3211 for facilitating adhesion and separation with the sealing member 2, and the stretching portion 31 is provided with a second adhesive layer 311 for facilitating adhesion and separation with the sidewall of the frame 1. It is understood that the first segment 321 may be temporarily fixed to the upper side of the packing 2 by the first adhesive layer 3211 when the protector 3 is assembled to the packing 2; the second adhesive layer 311 temporarily fixes the stretching portion 31 to the sidewall of the frame 1, thereby preventing the protection member 3 from moving, and facilitating the assembly of the circuit board 5. When the protection member 3 is required to be drawn out from between the sealing member 2 and the circuit board 5, the first adhesive layer 3211 and the second adhesive layer 311 have weaker viscosity, so that a certain force can be applied to the stretching portion 31, the stretching member is separated from the frame body 1, the first section 321 is separated from the sealing member 2, and the convenience in assembling the microphone assembly is improved.

Further, as shown in fig. 1 and fig. 2, the pressing portion 32 further includes an extension 323, the extension 323 is disposed between the first section 321 and the second section 322, and a third adhesive layer 3231 is disposed on the extension 323 for adhering to and separating from the bottom wall of the frame 1, so that when the protection member 3 is assembled, the extension 323 can be fixed on the bottom wall of the frame 1 through the third adhesive layer 3231, and the protection member 3 is further fixed, thereby avoiding the problem that the protection member 3 moves when the circuit board 5 is assembled.

In some embodiments, the protective element 3 is provided with a grid area (not shown) which is provided between the seal 2 and the circuit board 5. It can be understood that a plurality of hollow holes are arranged in the grating area, so that the problem of scraping and rubbing of the sealing element 2 during the assembly of the circuit board 5 can be avoided, and the sealing element 2 can be partially contacted with the circuit board 5, thereby further improving the air tightness of the microphone assembly.

In some embodiments, as shown in fig. 1 to 3, the sound receiving channel 11 includes a first channel 111 and a second channel 112, a first end (e.g., a left end of the first channel 111 in fig. 2) of the first channel 111 communicates with the outside of the frame 1, a second end (e.g., a right end of the first channel 111 in fig. 2) of the first channel 111 communicates with a first end (e.g., a lower end of the second channel 112 in fig. 2) of the second channel 112, and the sealing member 2 seals the second end (e.g., an upper end of the second channel 112 in fig. 2) of the second channel 112, and a length direction of the first channel 111 is orthogonal to a length direction of the first channel 111, so that a probability of entering of dirt and dust from the sound receiving channel 11 to the circuit board 5 can be reduced, and a service life of the microphone assembly can be prolonged.

According to the utility model discloses a mobile terminal includes the utility model discloses the microphone subassembly of embodiment. The utility model discloses a mobile terminal's microphone subassembly's gas tightness is good, simple structure, the equipment of being convenient for.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. A microphone assembly, comprising:

the radio receiver comprises a frame body, wherein a radio receiving channel is arranged on the frame body;

the sealing element is positioned in the frame and arranged at one end of the sound receiving channel;

the protector at least partially covers one side of the sealing member, which faces away from the sound receiving channel;

the microphone is arranged on the circuit board, and the circuit board is arranged on one side of the protection piece, which is far away from the sealing piece.

2. The microphone assembly of claim 1, wherein the protector is removably coupled to the seal and the circuit board so that the seal conforms to the circuit board.

3. The microphone assembly of claim 1, wherein the protector is a PET film.

4. The microphone assembly of claim 2, wherein a nip area is provided between the sealing member and the circuit board, and the protecting member includes a stretching portion and a nip portion connected to each other, the stretching portion being located outside the nip area, the nip portion being located inside the nip area, and the stretching portion being configured to pull out the nip portion to the outside of the nip area.

5. The microphone assembly of claim 4, wherein the stitching includes a first section and a second section, a first end of the second section being connected to the first section, a second end of the second section being connected to the stretching portion, the first section overlying the surface of the sealing member, the second section being folded back to a side of the first section facing away from the sealing member, the stretching portion being configured to sequentially pull the second section and the first section out of the stitching.

6. The microphone assembly of claim 5, wherein the first section is provided with a first adhesive layer for facilitating adhesion and separation with the sealing member, and/or the stretching portion is provided with a second adhesive layer for facilitating adhesion and separation with a sidewall of the frame.

7. The microphone assembly of claim 5, wherein the press fit portion further comprises an extension section disposed between the first section and the second section, the extension section having a third adhesive layer disposed thereon for facilitating adhesion and separation with the bottom wall of the frame.

8. The microphone assembly of claim 1 wherein the protective member has a grill area disposed between the seal and the circuit board.

9. The microphone assembly of claim 1, wherein the sound receiving channel comprises a first channel and a second channel, a first end of the first channel communicates with an exterior of the frame, a second end of the first channel communicates with a first end of the second channel, and the seal blocks a second end of the second channel, wherein a length direction of the first channel is orthogonal to a length direction of the first channel.

10. A mobile terminal, characterized in that it comprises a microphone assembly according to any of claims 1-9.