CN218499238U

CN218499238U - Microphone sealing structure, microphone assembly structure and earphone

Info

Publication number: CN218499238U
Application number: CN202222773848.0U
Authority: CN
Inventors: 何世友; 王琴峰; 陈涛
Original assignee: Shenzhen Baseus Technology Co Ltd
Current assignee: Shenzhen Baseus Technology Co Ltd
Priority date: 2022-10-20
Filing date: 2022-10-20
Publication date: 2023-02-17
Anticipated expiration: 2032-10-20

Abstract

The application provides a microphone seal structure, microphone assembly structure and earphone relates to microphone technical field. Microphone seal structure includes microphone and miaow cover, offer in the miaow cover and be used for placing the recess of microphone, the open slot has all been seted up to the top surface and the relative both sides of miaow cover, the open slot will first cover body and the second cover body are cut apart into at the top of miaow cover, the bottom of the first cover body and the second cover body links to each other. The application provides a microphone sealing structure, through the half-open setting of miaow cover, when miaow cover installation, break off the first cover body with the second cover body off with the fingers and thumb, place the microphone in the recess, the first cover body and second cover body reset through elasticity, with whole microphone cladding, through interference tight fit structure, sealed the microphone. The problem of among the current prior art, the assembly and the sealed difficult balance of miaow cover and microphone is solved.

Description

Microphone sealing structure, microphone assembly structure and earphone

Technical Field

The utility model relates to a microphone technical field especially relates to a microphone seal structure, microphone assembly structure and earphone.

Background

A microphone, also known as a microphone, is an energy conversion device that converts a sound signal into an electrical signal, and is a device that is directly opposite to a speaker. As the applications of earphones in life increase, the noise reduction requirements for earphone microphones increase. At present, the sealing modes of the earphone noise reduction microphone on the market are various, but various problems of sealing performance and assembly exist.

In order to install the microphone in the earphone mounting groove, a microphone sleeve needs to be sleeved on the outer surface of the microphone, the microphone is sealed and protected, hard contact with a shell is reduced, and sensitivity of the microphone is guaranteed. However, most of the headset noise reduction microphones in the current market are of cap-shaped structures, the assembly and sealing of the microphone sleeve and the microphone are difficult to balance, and in order to ensure the sealing performance, when the microphone sleeve is sleeved on the microphone, the loop openings of part of the microphone sleeve are too small, so that the assembly is difficult; if the opening of the microphone cover is enlarged, the microphone cover is easy to assemble, but the sealing performance of the microphone is reduced.

SUMMERY OF THE UTILITY MODEL

In view of this, an object of the present application is to provide a microphone sealing structure, a microphone assembling structure and an earphone, which aim at solving the technical problem that the assembling of a microphone sleeve and a microphone is difficult to balance in the prior art.

In order to achieve the purpose, the technical scheme adopted by the application is as follows:

in a first aspect, an embodiment of the present application provides a microphone sealing structure, including:

a microphone;

the microphone sleeve is characterized by comprising a microphone sleeve, wherein a groove used for placing the microphone is formed in the microphone sleeve, an open groove with an open top is formed in the microphone sleeve, the microphone sleeve is divided into a first sleeve body and a second sleeve body through the open groove, and the bottoms of the first sleeve body and the second sleeve body are connected.

In one embodiment of the first aspect, the groove is disposed within the first sleeve.

In one embodiment of the first aspect, a first through hole is formed in one side of the second sleeve body, and the sound inlet hole of the microphone is located at the first through hole.

In a second aspect, an embodiment of the present application further provides a duct system, which includes the microphone sealing structure and a flexible circuit board described in any of the above embodiments, wherein the microphone is mounted at one end of the flexible circuit board, and the microphone cover is wrapped at the microphone and the end of the flexible circuit board.

In one embodiment of the second aspect, the microphone mounting structure further comprises:

a housing configured as a mounting carrier for the microphone and the microphone holster;

the main board is connected with one end, far away from the microphone, of the flexible circuit board;

the mainboard, the flexible circuit board, the microphone and the microphone cover are all arranged in the shell.

In one embodiment of the second aspect, one side of the microphone is attached to the flexible circuit board, the sound inlet hole of the microphone is formed in one surface, attached to the flexible circuit board, of the microphone, a second through hole is formed in a joint of the flexible circuit board and the sound inlet hole, and the second sleeve body is attached to one side, away from the microphone, of the flexible circuit board.

In one embodiment of the second aspect, a mounting groove is provided in the housing, and the microphone sealing structure is mounted in the mounting groove.

In one embodiment of the second aspect, the flexible circuit board is in an L-shaped structure, one end of the flexible circuit board, which is parallel to the main board, is plugged into the female socket on the main board, and one end of the flexible circuit board, which is perpendicular to the main board, is connected to the microphone.

In one embodiment of the second aspect, a third through hole is formed in a side wall of the mounting groove, and axes of the sound inlet hole, the first through hole, the second through hole and the third through hole are overlapped.

In a third aspect, an embodiment of the present application further provides an earphone, including the microphone assembling structure described in any of the above embodiments.

Compared with the prior art, the beneficial effects of this application are: the application provides a microphone seal structure, microphone assembly structure and earphone. The microphone sealing structure provided by the first aspect of the present application includes a microphone and a half-opened microphone holder. The microphone cover is internally provided with a groove for placing a microphone, the top surface and the two opposite sides of the microphone cover are respectively provided with an open slot, the open slots are mutually communicated to divide the top of the microphone cover into a first cover body and a second cover body, and the bottoms of the first cover body and the second cover body are connected. Half through miaow cover open the setting, when miaow cover installation, break off the first cover body with the second cover body off with the fingers and thumb, place the microphone in the recess, the first cover body and second cover body reset through elasticity, with whole microphone cladding, through interference tight fit structure, sealed the microphone.

According to the microphone assembling structure provided by the second aspect of the application, the microphone is pasted on the flexible circuit board, so that the welding operation of the traditional process is reduced, and the working performance of the microphone is more stable; the microphone with the sound inlet hole in the back face is adopted, the second through hole is formed in the flexible circuit board, one side of the microphone sleeve wraps the microphone, the other side of the microphone sleeve is attached to the flexible circuit board, the first through hole is formed in one side of the attached flexible circuit board, the third through hole is formed in the side wall of the mounting groove, the sound inlet hole, the first through hole, the second through hole and the third through hole are arranged in a mode of being overlapped in axial lines, sealing is achieved, and meanwhile sound transmission performance of the microphone is improved. The integral structure is compact, the assembly is convenient, and the sealing performance is good.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic plan view showing a microphone mounting structure according to an embodiment of the present application;

FIG. 2 shows a cross-sectional view taken along line B-B of FIG. 1;

FIG. 3 shows an enlarged schematic view of section A of FIG. 2;

FIG. 4 is a schematic diagram of a motherboard structure in an embodiment of the present application;

FIG. 5 shows a schematic diagram of a flexible circuit board structure in one embodiment of the present application;

fig. 6 shows a schematic view of a microphone structure in an embodiment of the present application;

fig. 7 shows a cross-sectional view in the direction E-E of fig. 6.

Description of the main element symbols:

1100-microphone; 1200-a microphone sleeve; 1210-a first sleeve body; 1211-grooves; 1220-a second sleeve body; 1221-a first via; 1230-open slots; 1300-a housing; 1310-a third via; 1400-main board; 1500-a flexible circuit board; 1510-second via.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present application.

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 to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. 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.

As shown in fig. 3 and 6, embodiments of the first aspect of the present application provide a microphone sealing structure, which can be applied to various types of sound transmission equipment. The microphone sealing structure includes a microphone 1100 and a microphone case 1200, and a groove 1211 for placing the microphone 1100 is formed in the microphone case 1200.

Preferably, in the present application, the microphone 1100 may be a silicon microphone.

As shown in fig. 7, the microphone holder 1200 is provided with open grooves 1230 having open tops, and all the open grooves 1230 divide the microphone holder 1200 into the first and

second housings

1210 and 1220, and the first and

second housings

1210 and 1220 are connected at their bottoms.

Specifically, in this embodiment, by providing the microphone cover 1200 with a half-opened top, when the microphone 1100 is hermetically covered, the first sleeve 1210 and the second sleeve 1220 are simply opened, and the microphone 1100 is placed in the groove 1211. The microphone holder 1200 is made of flexible plastic, and in the present embodiment, a silicone material is used. By the aid of the microphone sleeve 1200 made of flexible plastic, after the microphone 1100 is assembled, the tops of the first sleeve body 1210 and the second sleeve body 1220 are elastically reset, the microphone 1100 is integrally coated, and the microphone 1100 is completely sealed through an interference tight-fitting structure. The problem of in the current prior art, the assembly of cap type structure miaow cover 1200 and microphone 1100, sealed are difficult to balance is solved.

As shown in fig. 3 and 6, in some embodiments of the first aspect of the present disclosure, the groove 1211 is disposed in the first sleeve 1210, the microphone 1100 is disposed completely in the groove 1211 of the first sleeve 1210, and the inner sidewall of the second sleeve 1220 is attached to the surface of the microphone 1100 not contacting the first sleeve 1210. With this design, the mounting stability of the microphone 1100 is enhanced. During assembly, after the first sleeve 1210 and the second sleeve 1220 are separated, the microphone 1100 can be stably placed in the groove 1211, and the risk of damage caused by dropping the microphone 1100 is reduced.

As shown in fig. 3, in some embodiments of the first aspect of the present application, a first through hole 1221 is opened at one side of the second casing 1220, and the sound inlet of the microphone 1100 is located at the first through hole 1221. By disposing the sound inlet on the side of the microphone 1100 not in contact with the first housing 1210, the sound inlet communicates with the first through hole 1221, facilitating the sound transmission operation of the microphone 1100, and subsequently converting the sound signal into an electrical signal. The problem that when the existing cap-shaped microphone holder 1200 is assembled with the microphone 1100, the microphone 1100 still exposes part of the surface at the opening side of the microphone holder 1200, and complete sealing cannot be achieved is solved.

As shown in fig. 2 and 3, an embodiment of the second aspect of the present application provides a microphone mounting structure, which includes the microphone sealing structure provided in the foregoing embodiment and a flexible circuit board 1500. The microphone 1100 is mounted at one end of the flexible circuit board 1500, and the microphone cover 1200 completely covers the microphone 1100 and the connection end of the flexible circuit board 1500 and the microphone 1100.

Specifically, one side of the microphone 1100 is attached to the flexible circuit board 1500, after the patch operation of the microphone 1100 is performed on the flexible circuit board 1500, the first sleeve 1210 and the second sleeve 1220 are broken, the part of the microphone 1100 not in contact with the flexible circuit board 1500 is placed in the groove 1211 of the first sleeve 1210, and the second sleeve 1220 is attached to one side of the flexible circuit board 1500 away from the microphone 1100. The microphone 1100 and the microphone holder 1200 can be conveniently installed and adjusted in the sound transmission device by the characteristics of thin thickness and good bending property of the flexible circuit board 1500.

In some embodiments of the second aspect of the present application, as shown in fig. 1 and 4, the microphone mounting structure further includes a housing 1300 and a main board 1400. The housing 1300 is configured as a mounting carrier for the microphone 1100 and the microphone case 1200, the microphone 1100 is mounted on the flexible circuit board 1500, the main board 1400 is connected with one end of the flexible circuit board 1500 away from the microphone 1100, and the main board 1400, the flexible circuit board 1500, the microphone 1100 and the microphone case 1200 are all mounted in the housing 1300.

Specifically, the microphone cover 1200 completely covers the microphone 1100 and the connection end between the flexible circuit board 1500 and the microphone 1100, so as to ensure the sealing of the microphone 1100, and the flexible circuit board 1500 serves as an intermediate carrier to transmit the electrical signal of the microphone 1100 to the motherboard 1400. The flexible circuit board 1500 and mainboard 1400 electric connection, in this application, install female seat on the mainboard 1400, the one end that the microphone 1100 was kept away from to flexible circuit board 1500 is provided with the plug. Through the mode that flexible circuit board 1500 and female seat were pegged graft, realized not having welded connection, reduced the cost of labor, guaranteed the uniformity of product equipment simultaneously. Various chips are mounted on the motherboard 1400, and the signals transmitted from the flexible circuit board 1500 are received and processed accordingly.

As shown in fig. 5, the electrical connection surface of the microphone 1100 is used as a back surface, the sound inlet of the microphone 1100 is disposed on the back surface of the microphone 1100, and the back surface of the microphone 1100 is attached to the flexible circuit board 1500. The connection between the flexible circuit board 1500 and the sound inlet hole is provided with a second through hole 1510, and the second sleeve 1220 is attached to one side of the flexible circuit board 1500 departing from the microphone 1100.

Specifically, the axes of the sound inlet, the first through hole 1221, and the second through hole 1510 are overlapped, so as to facilitate sound collection of the microphone 1100, in this embodiment, the microphone 1100 with a back sound is selected, the microphone 1100 is mounted on the flexible circuit board 1500, and the second through hole 1510 is formed in the flexible circuit board 1500, so that the problem of wire bonding of the microphone 1100 in operation is reduced.

In some embodiments of the second aspect of the present application, a mounting slot is provided in the housing 1300, and the microphone sealing structure is mounted in the mounting slot. The mounting groove is identical to the shape of the microphone holder 1200, in the embodiment, the mounting groove, the microphone holder 1200 and the microphone 1100 are all rectangular structures, and an opening is formed in one side of the mounting groove, so that the microphone holder 1200 can be conveniently placed in the mounting groove.

Specifically, after microphone 1100 is assembled in microphone cover 1200, the bottom connecting end of microphone cover 1200 is inserted into the mounting groove, so that the opening end of microphone cover 1200 is arranged on the notch side of the mounting groove, and under the extrusion of the groove wall of the mounting groove, microphone cover 1200 made of silica gel is extruded and expanded, first sleeve body 1210 is tightly attached to second sleeve body 1220, and the sealing performance of microphone 1100 is improved.

In some embodiments of the second aspect of the present application, the flexible circuit board 1500 is an L-shaped structure, one end of the flexible circuit board 1500 parallel to the motherboard 1400 is inserted into the female socket of the motherboard 1400, and one end of the flexible circuit board 1500 perpendicular to the motherboard 1400 is connected to the microphone 1100.

In particular, in a partially precise sound transmitting apparatus, since the sound transmitting apparatus has a small volume and a limited internal installation space, it is necessary to optimize the installation of internal components as much as possible. In this embodiment, the flexible circuit board 1500 is disposed to facilitate the installation and adjustment of the microphone 1100, and the bending angle of the flexible circuit board 1500 is adjusted according to the specific structure of the installation housing 1300. In this embodiment, the flexible circuit board 1500 is disposed at 90 degrees, and after the flexible circuit board 1500 is inserted into the motherboard 1400, the microphone 1100 is disposed in the vertical direction of the plane of the motherboard 1400, so that the microphone 1100 can be conveniently mounted when the opening of the microphone device is small.

In some embodiments of the second aspect of the present application, the side wall of the mounting groove is provided with a third through hole 1310, and the axes of the sound inlet hole, the first through hole 1221, the second through hole 1510 and the third through hole 1310 are coincidently arranged.

Further, a side wall of the mounting groove is overlapped with the housing 1300, and correspondingly, the third through hole 1310 is opened on the side wall of the mounting groove overlapped with the housing 1300.

Specifically, the axes of the sound inlet hole, the first through hole 1221, the second through hole 1510 and the third through hole 1310 are overlapped, so that the sound inlet hole is communicated with the outside, and a sound signal is received by the sound inlet hole of the microphone 1100 after sequentially passing through the third through hole 1310, the first through hole 1221 and the second through hole 1510, and then is converted into an electric signal, and is transmitted to the main board 1400 by the flexible circuit board 1500, so that the sound transmission operation of the microphone 1100 is completed.

In summary, the working principle of the microphone assembling structure provided by the present application is as follows:

by disposing the sound inlet hole on the back side of the microphone 1100 and attaching the microphone 1100 to the flexible circuit board 1500. Meanwhile, when the main board 1400 is connected, a plug-in mode is adopted, and solderless connection is achieved. The flexible circuit board 1500 is inserted with the female seat on the motherboard 1400, thereby avoiding the welding operation of electronic components, avoiding the problems of bridging, pinching, cavities, surfacing, loosening, cold welding and the like caused by welding, reducing the labor cost and ensuring the consistency of product assembly.

After the microphone 1100 is mounted on the flexible circuit board 1500, it is placed as an assembly in a uniquely designed microphone case 1200. In the design of the microphone cover 1200, the microphone cover 1200 is designed in a halving structure, one side of the microphone cover 1200 wraps the main body of the microphone 1100, and the other side is attached to the flexible circuit board 1500. Then assemble miaow cover 1200 in the mounting groove on casing 1300, utilize the flexible glue characteristic of silica gel miaow cover 1200, under the cell wall restriction of mounting groove, miaow cover 1200 closely laminates with microphone 1100, is surrounding whole miaow cover 1200, through interference tight fit structure, realizes the not enough problem of microphone 1100 leakproofness after the assembly.

The second through hole 1510 is opened at the position where the flexible circuit board 1500 contacts the sound inlet hole, the first through hole 1221 is opened at one side where the microphone sleeve 1200 and the flexible circuit board 1500 are attached, the third through hole 1310 is opened at the side wall of the mounting groove, the third through hole 1310 contacts with the outside air, and the sound inlet hole, the first through hole 1221, the second through hole 1510 and the axis of the third through hole 1310 are overlapped. The sound transmission effect of the microphone 1100 is ensured, the sealing performance of the microphone 1100 is enhanced, and the whole assembly is simple.

Embodiments of the third aspect of the present application further provide an earphone including the microphone mounting structure in any of the above embodiments.

In particular, the microphone assembling structure is applied to an earphone.

The microphone assembling structure in any of the embodiments is provided in this embodiment, and therefore, all the beneficial effects of the microphone assembling structure in any of the embodiments are not repeated herein.

Of course, the microphone assembling structure can also be applied to non-earphone sound transmission equipment, such as mobile phones and computers. Smart watches, and the like, having a microphone 1100.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means 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 application. 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.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are exemplary and should not be construed as limiting the present application and that changes, modifications, substitutions and alterations in the above embodiments may be made by those of ordinary skill in the art within the scope of the present application.

Claims

1. A microphone sealing structure, comprising:

a microphone;

2. The microphone sealing structure of claim 1, wherein the groove is disposed within the first sleeve.

3. The microphone sealing structure of claim 1, wherein a first through hole is formed at one side of the second sleeve, the sound inlet of the microphone is located at the first through hole, and the axes of the sound inlet and the first through hole are coincident.

4. A microphone mounting structure comprising the microphone sealing structure of any one of claims 1 to 3 and a flexible circuit board, the microphone being mounted on one end of the flexible circuit board, the microphone cover being wrapped around the microphone and the end of the flexible circuit board.

5. The microphone mounting structure of claim 4, further comprising:

6. The microphone assembling structure of claim 5, wherein one side of the microphone is attached to the flexible circuit board, the sound inlet hole of the microphone is disposed on one side of the flexible circuit board to which the microphone is attached, a second through hole is disposed at a connection position of the flexible circuit board and the sound inlet hole, and the second sleeve body is attached to one side of the flexible circuit board away from the microphone.

7. The microphone mounting structure of claim 6, wherein a mounting groove is provided in the housing, and the microphone sealing structure is mounted in the mounting groove.

8. The microphone assembling structure as claimed in claim 7, wherein a third through hole is formed in a side wall of the mounting groove, and axes of the sound inlet hole, the second through hole and the third through hole are coincided with each other.

9. A microphone mounting structure according to any one of claims 5 to 8, wherein the flexible printed circuit board has an L-shaped structure, one end of the flexible printed circuit board, which is parallel to the main board, is inserted into the female socket of the main board, and one end of the flexible printed circuit board, which is perpendicular to the main board, is connected to the microphone.

10. An earphone characterized by comprising the microphone mounting structure of any one of claims 4 to 9.