CN214960024U

CN214960024U - Microphone sealing mechanism and microphone

Info

Publication number: CN214960024U
Application number: CN202121326811.2U
Authority: CN
Inventors: 肖罡
Original assignee: Guoguang Electric Co Ltd
Current assignee: Guoguang Electric Co Ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-11-30
Anticipated expiration: 2031-06-15

Abstract

The utility model relates to the technical field of microphones, in particular to a microphone sealing mechanism and a microphone, wherein the microphone sealing mechanism comprises a mounting seat, a microphone, a FPC (flexible printed circuit) board, a sealing sleeve and a mounting cover, wherein the mounting seat is provided with a first through hole; the microphone is arranged on the FPC circuit board; the sealing sleeve is provided with a second through hole and an opening, the FPC circuit board and the microphone are arranged in the sealing sleeve through the opening, and the sealing sleeve is arranged in the mounting seat; the second through hole is aligned with the first through hole and the sound pickup hole of the microphone respectively. The installation lid is equipped with crimping portion, and installation lid and mount pad are connected the back, and crimping portion can be with opening crimping in the mount pad and with the opening pressfitting. The utility model discloses connect microphone and FPC circuit board to with the seal cover cladding in microphone and FPC circuit board periphery, make the microphone all be located the seal cover except that the position of picking up the sound hole, after installation lid and mount pad are connected, crimping portion can be with the opening pressfitting. The problem of microphone circumference air leakage is solved.

Description

Microphone sealing mechanism and microphone

Technical Field

The utility model relates to a microphone technical field especially relates to a microphone sealing mechanism and microphone.

Background

In recent years, patch type digital microphones are applied to smart sound boxes, sound boxes with Bluetooth telephone functions, teleconference systems and the like which are popular in the market, wherein if the air tightness of a sound pickup system of the equipment is not well processed, problems of poor awakening, voice control failure, self-excited squeaking of the sound boxes and the like can occur.

At present, the microphone passes through top sealing gasket and bottom sealing gasket, locates the microphone both sides respectively, and is located between top cap and the support, because each part size is great, great difference appears when relative plane degree cooperates, or tin volume difference on the PCB board pad, causes the circumference gas leakage of microphone easily to the condition of test failure is recorded from broadcasting to appearing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a microphone sealing mechanism and microphone to solve the problem of the circumference gas leakage of microphone among the prior art.

In order to achieve the purpose, the utility model adopts the following technical proposal:

in one aspect, the utility model provides a microphone sealing mechanism, this microphone sealing mechanism includes:

the mounting seat is provided with a first through hole;

the microphone is arranged on the FPC circuit board;

the sealing sleeve is provided with a second through hole and an opening, the FPC circuit board and the microphone are installed in the sealing sleeve through the opening, and the sealing sleeve is arranged in the mounting seat; the second through hole is aligned with the first through hole and the pickup hole of the microphone respectively;

the installation cover is provided with a crimping part, and after the installation cover is connected with the installation seat, the crimping part can crimp the opening to the installation seat and press the opening.

As a preferable scheme of the microphone sealing mechanism, glue is smeared at the position where the periphery of the sealing sleeve is contacted with the mounting seat.

As a preferred scheme of the microphone sealing mechanism, the mounting cover is provided with a positioning hole, the mounting base is provided with a positioning shaft, and when the mounting cover is mounted on the mounting base, the positioning hole is inserted into the positioning shaft.

As a preferred scheme of microphone sealing mechanism, the seal cover still includes the bolster, the bolster is located the seal cover is close to one side of installation lid, and be used for with installation lid butt.

As a preferable aspect of the microphone sealing mechanism, the buffer member includes a plurality of protruding ridges arranged at intervals.

As a preferable scheme of the microphone sealing mechanism, the free end of the convex edge is provided with a round angle.

As a preferred scheme of the microphone sealing mechanism, an annular convex strip is arranged on the periphery of the second through hole on one side of the sealing sleeve close to the mounting seat; the dustproof pad is attached to the annular raised line.

As a preferred scheme of the microphone sealing mechanism, the microphone sealing mechanism further comprises a top sealing gasket, wherein the top sealing gasket is provided with a third through hole, the top sealing gasket is attached to one side, away from the sealing sleeve, of the mounting seat, and the third through hole is aligned with the first through hole.

As a preferred scheme of microphone sealing mechanism, still include the bottom seal pad, the bottom seal pad pastes and locates the installation lid deviates from one side of seal cover

In another aspect, the present invention provides a microphone, including the microphone sealing mechanism in any one of the above aspects.

The utility model has the advantages that:

the utility model provides a microphone sealing mechanism and microphone, this microphone sealing mechanism connect microphone and FPC circuit board to with the seal cover cladding in microphone and FPC circuit board periphery, make the microphone all be located the seal cover except that the position of picking up the sound hole, and after installation lid and mount pad are connected, crimping portion can be with the opening pressfitting. The problem of microphone circumference hourglass is solved, the utility model discloses simple structure, and with low costs.

Drawings

Fig. 1 is a schematic structural view of a microphone sealing mechanism according to an embodiment of the present invention;

fig. 2 is an exploded view of the microphone sealing mechanism according to the embodiment of the present invention.

In the figure:

100. a microphone; 200. an FPC circuit board;

1. a mounting seat; 11. a first through hole; 12. positioning the shaft;

2. sealing sleeves; 21. a second through hole; 22. an opening; 23. convex edges; 24. an annular rib;

3. installing a cover; 31. a crimping part; 32. positioning holes;

4. a dust-proof pad;

5. a top seal pad; 51. a third through hole;

6. a bottom gasket;

7. and (5) fastening the screw.

Detailed Description

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

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like 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 invention, and should not be construed as limiting the present invention.

As shown in fig. 1-2, the present embodiment provides a microphone sealing mechanism, which includes a mounting base 1, a microphone 100, a FPC board 200(Flexible Printed Circuit), a sealing sleeve 2, and a mounting cover 3, wherein the mounting base 1 is provided with a first through hole 11; the microphone 100 is arranged on the FPC board 200; preferably, the microphone 100 is provided to the FPC board 200 through a patch process. The sealing sleeve 2 is provided with a second through hole 21 and an opening 22, the FPC board 200 and the microphone 100 are installed in the sealing sleeve 2 through the opening 22, and the sealing sleeve 2 is arranged in the mounting seat 1; the second through hole 21 and the first through hole 11 are aligned with the sound pickup hole of the microphone 100, respectively. The mounting cover 3 is provided with a crimping portion 31, and after the mounting cover 3 and the mounting base 1 are connected, the crimping portion 31 can crimp the opening 22 to the mounting base 1 and crimp the opening 22. Wherein, seal cover 2 is flexible material, preferably silica gel material.

In this embodiment, the microphone 100 is connected to the FPC board 200, and the sealing sleeve 2 is wrapped around the microphone 100 and the FPC board 200, so that the microphone 100 is located inside the sealing sleeve 2 except for the sound pickup hole, and after the mounting cover 3 is connected to the mounting base 1, the press-fitting portion 31 can press-fit the opening 22. The problem of microphone 100 circumference hourglass is solved, the utility model discloses simple structure, and with low costs.

In addition, the installation cover 3 is arranged to enable the sealing sleeve 2 to be located between the installation seat 1 and the installation cover 3, and therefore the distance between the sound pickup hole of the microphone 100 and the first through hole 11 is kept unchanged.

Further, the mount 1 is provided with a crimping block, and after the mounting cover 3 and the mount 1 are connected, the crimping portion 31 can crimp the opening 22 to the crimping block and crimp the opening 22. The two sides of the opening 22 are close to each other due to the arrangement of the pressure connection blocks, so that the gap formed after the opening 22 is pressed does not affect the FPC circuit board 200, that is, the FPC circuit board 200 is not deformed due to the pressing of the opening 22.

Alternatively, the mounting cap 3 and the mounting base 1 are screwed. Specifically, the mounting cover 3 is provided with a mounting hole, the mounting base 1 is provided with a threaded hole, and the fastening screw 7 is screwed into the threaded hole after passing through the mounting hole. This arrangement enables the mount 1 and the mount cover 3 to be firmly connected, and is low in cost. Preferably, there are two mounting holes.

In this embodiment, glue is applied to the position where the periphery of the sealing sleeve 2 contacts the mounting base 1. This setting makes seal cover 2 and mount pad 1 ability rigid coupling, prevents that mount pad 1 and installation lid 3 connection process seal cover 2 from taking place to shift.

Optionally, the mounting cover 3 is provided with a positioning hole 32, the mounting base 1 is provided with a positioning shaft 12, and when the mounting cover 3 is mounted on the mounting base 1, the positioning hole 32 is inserted into the positioning shaft 12. With the help of above-mentioned setting, installation effectiveness and the precision of installation lid 3 with mount pad 1 have been improved.

Regarding the structure of the sealing sleeve 2, in this embodiment, optionally, the sealing sleeve 2 further includes a buffer member, which is disposed on a side of the sealing sleeve 2 close to the mounting cover 3 and is used for abutting against the mounting cover 3. This setting makes mount pad 1 and installation cover 3 can compress tightly seal cover 2 when cooperating, and can not lead to mount pad 1 and installation cover 3 unable connection because the too big pressure that produces of seal cover 2.

Regarding the structure of the buffer member, in the present embodiment, optionally, the buffer member includes a plurality of convex ridges 23 arranged at intervals. The convex edge 23 has simple structure and is easy to design and produce. The structure can realize the buffering function, can also reduce the material of the buffering part and save the cost. Furthermore, the free end of the convex edge 23 is provided with a round angle so as to improve the yield of the mold stripping during injection molding.

Preferably, one side of the sealing sleeve 2 close to the mounting seat 1 is provided with an annular convex strip 24 on the periphery of the second through hole 21; the dustproof pad 4 is attached in the annular convex strip 24. With the above arrangement, foreign substances such as dust are prevented from entering the microphone 100, and the foreign substances do not enter the cavity between the mount base 1 and the mount cover 3 through the gap between the dust-proof pad 4 and the mount base 1.

In this embodiment, optionally, the microphone sealing mechanism further includes a top sealing gasket 5, the top sealing gasket 5 is provided with a third through hole 51, the top sealing gasket 5 is attached to one side of the mounting seat 1 away from the sealing sleeve 2, and the third through hole 51 is aligned with the first through hole 11. Alternatively, the top seal 5 may be made of polyurethane foam. Preferably Poron (korean brand) polyurethane foam. With the above arrangement, it is possible to prevent the microphone sealing mechanism from being affected by vibrations generated by the structure of the fixed mount 1.

Further, microphone sealing mechanism still includes bottom seal pad 6, and bottom seal pad 6 pastes and locates the one side that installation lid 3 deviates from seal cover 2. With the above arrangement, it is possible to prevent the microphone sealing mechanism from being affected by vibrations generated by the structure of the fixedly-mounted cover 3. Alternatively, the bottom gasket 6 may be made of polyurethane foam.

The present embodiment also provides a microphone 100, which includes the microphone sealing mechanism in the above solution.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A microphone sealing mechanism, comprising:

the mounting base (1), the mounting base (1) is provided with a first through hole (11);

the microphone comprises a microphone (100) and an FPC (flexible printed circuit) board (200), wherein the microphone (100) is arranged on the FPC board (200);

the sealing sleeve (2) is provided with a second through hole (21) and an opening (22), the FPC (200) and the microphone (100) are installed in the sealing sleeve (2) through the opening (22), and the sealing sleeve (2) is arranged in the mounting seat (1); the second through hole (21) and the first through hole (11) are respectively aligned with the sound pickup hole of the microphone (100);

the installation cover (3), the installation cover (3) is equipped with crimping portion (31), installation cover (3) with after mount pad (1) is connected, crimping portion (31) can with opening (22) crimping in mount pad (1) and with opening (22) pressfitting.

2. Microphone sealing mechanism according to claim 1, characterized by that, glue is applied to the place where the outer circumference of the sealing sleeve (2) contacts the mounting base (1).

3. Microphone sealing mechanism according to claim 1, characterized by that, the mounting cover (3) is provided with a positioning hole (32), the mounting base (1) is provided with a positioning shaft (12), and when the mounting cover (3) is mounted on the mounting base (1), the positioning hole (32) and the positioning shaft (12) are inserted.

4. The microphone sealing mechanism according to claim 1, wherein the sealing sleeve (2) further comprises a buffer member disposed on a side of the sealing sleeve (2) close to the mounting cover (3) and adapted to abut against the mounting cover (3).

5. Microphone sealing arrangement according to claim 4, characterized in that the buffer element comprises a plurality of spaced ridges (23).

6. Microphone sealing mechanism according to claim 5, characterized by the fact that the free end of the ridge (23) is provided with a rounded corner.

7. The microphone sealing mechanism according to claim 1, wherein one side of the sealing sleeve (2) close to the mounting seat (1) is provided with an annular convex strip (24) at the periphery of the second through hole (21); the dustproof pad (4) is attached to the annular convex strip (24).

8. Microphone sealing mechanism according to any of claims 1-7, characterized by further comprising a top gasket (5), wherein the top gasket (5) is provided with a third through hole (51), wherein the top gasket (5) is attached to the side of the mounting seat (1) facing away from the sealing sleeve (2), and wherein the third through hole (51) is aligned with the first through hole (11).

9. Microphone sealing mechanism according to any of claims 2-7, characterized by further comprising a bottom gasket (6), wherein the bottom gasket (6) is attached to the side of the mounting cover (3) facing away from the sealing sleeve (2).

10. A microphone comprising a microphone sealing mechanism as claimed in any one of claims 1 to 9.