CN205545765U

CN205545765U - Microphone module and waterproof electronic equipment

Info

Publication number: CN205545765U
Application number: CN201620051107.3U
Authority: CN
Inventors: 李能
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2016-01-19
Filing date: 2016-01-19
Publication date: 2016-08-31
Anticipated expiration: 2026-01-19

Abstract

The utility model relates to a microphone module and waterproof electronic equipment. A microphone module, includes microphone body, silica gel cover and PCBA, and microphone ontology built -in is in the mounting hole of silica gel cover, and the PCBA pressfitting offsets at the mounting hole tip and with the microphone body, and the lateral wall of mounting hole has lateral part ring packing arch, and the protruding extrusion laminating of this lateral part ring packing is on the microphone body. The utility model discloses when placing the microphone body mounting hole of silica gel cover in, this realization of microphone makes the protruding extrusion laminating of lateral part ring packing on the microphone body to the protruding excessive extrusion of the lateral part ring packing of mounting hole, realizes sealedly, the utility model discloses only need guarantee the protruding and microphone body extrusion sealing contact of outstanding lateral part ring packing, be convenient for realize, guarantee the leakproofness of microphone body with the silica gel cover, can satisfy the sealed effect that the height required, and then guarantee audio frequency acoustic effect. The utility model also provides a waterproof electronic equipment who has above -mentioned microphone module.

Description

A kind of mike module and water-proof electronic appliance

Technical field

This utility model relates to technical field of electronic products, more particularly, it relates to a kind of mike module, This utility model further relates to a kind of water-proof electronic appliance with above-mentioned mike module.

Background technology

Microphone body is often put into silica gel sheath by existing mike module by force, makes both pass through in advance and presses solidly Fixed, reach sealing effectiveness, thus the audio frequency effect required for realizing.

Fix owing to the surface of silica gel sheath with microphone body carries out sealing by precompressed mode, silica gel sheath Inwall needs all to extrude with whole microphone body to contact, but, owing to squish area is relatively big, it is easier to make Become extruding uneven, it is difficult to ensure that the whole silica gel sheath in the direction of propagation along sound connects with microphone body sealing Touching, after in turn resulting in assembling deformation, microphone body is not partially sealed with silica gel sheath tight, have impact on audio sound Learn effect.

Additionally, due to silica gel sheath is relatively big to the squish area of microphone body, relatively it is easily caused silica gel sheath overvoltage, So that waterproof membrane is caused extrusion damage, cause audio frequency bad.

In sum, how to ensure the sealing of microphone body and silica gel sheath, to ensure that audio acoustic is imitated Really, it is current those skilled in the art technical problems urgently to be resolved hurrily.

Utility model content

In view of this, the purpose of this utility model is to provide a kind of mike module, to ensure mike Body and the sealing of silica gel sheath, and then ensure audio acoustic effect.

In order to achieve the above object, the following technical scheme of this utility model offer:

A kind of mike module, including microphone body, silica gel sheath and PCBA, in described microphone body Be placed in the installing hole of described silica gel sheath, described PCBA be pressed together on described installing hole end and with described wheat Gram wind body offsets, and the sidewall of described installing hole has sidepiece annular seal convexity, and described sidepiece annular is close Envelope projection extruding is fitted in described microphone body.

Preferably, in above-mentioned mike module, the diapire of described installing hole has and is positioned at described silica gel sheath The base circle seal convexity of MIC periphery, described base circle seal convexity and described microphone body Sender periphery extruding laminating.

Preferably, in above-mentioned mike module, described microphone body and described installing hole matched in clearance.

Preferably, above-mentioned mike module also includes being arranged between described silica gel sheath and described PCBA Sealant.

Preferably, in above-mentioned mike module, described sealant is gum layer.

Preferably, above-mentioned mike module also includes the end being arranged on described silica gel sheath away from described PCBA Waterproof membrane on face, described waterproof membrane covers the MIC of described silica gel sheath.

From above-mentioned technical scheme it can be seen that the mike module that this utility model provides includes mike Body, silica gel sheath and PCBA, microphone body is built in the installing hole of silica gel sheath, and PCBA is pressed together on Installing hole end also offsets with microphone body, and the sidewall of installing hole has sidepiece annular seal convexity, should The extruding of sidepiece annular seal convexity is fitted in microphone body.

When microphone body is placed in the installing hole of silica gel sheath by this utility model, microphone body can be to installation The sidepiece annular seal convexity excess extruding in hole, makes the extruding of sidepiece annular seal convexity be fitted in mike originally On body, it is achieved seal；This utility model only needs to ensure prominent sidepiece annular seal convexity and mike Body crush seal contacts, it is simple to realize, it is ensured that microphone body and the sealing of silica gel sheath, can expire The sealing effectiveness of foot high request, and then ensure that audio acoustic effect.

This utility model additionally provides a kind of water-proof electronic appliance, including housing be arranged in described housing Mike module, described mike module is any of the above-described kind of mike module, due to above-mentioned mike Module has the effect above, and the water-proof electronic appliance with above-mentioned mike module has same effect, Therefore repeat no more herein.

Accompanying drawing explanation

In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, Accompanying drawing in describing below is embodiments more of the present utility model, comes for those of ordinary skill in the art Say, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is the perspective view of the mike module that this utility model embodiment provides；

Fig. 2 is the detonation configuration schematic diagram of the mike module that this utility model embodiment provides；

Fig. 3 is the sectional view of the mike module that this utility model embodiment provides；

Fig. 4 is the sectional view of the silica gel sheath that this utility model embodiment provides.

Detailed description of the invention

This utility model embodiment provides a kind of mike module, it is ensured that microphone body and silica gel sheath Sealing, and then ensure that audio acoustic effect.

For making the purpose of this utility model embodiment, technical scheme and advantage clearer, below in conjunction with Accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clear, It is fully described by, it is clear that described embodiment is a part of embodiment of this utility model rather than complete The embodiment in portion.Based on the embodiment in this utility model, those of ordinary skill in the art are not making The every other embodiment obtained under creative work premise, broadly falls into the scope of this utility model protection.

Refer to accompanying drawing 1-4, the mike module that this utility model embodiment provides include microphone body 3, Silica gel sheath 2 and PCBA1 (abbreviation of Printed Circuit Board Assembly, printed circuit board assembly), Microphone body 3 is built in the installing hole of silica gel sheath 2, and PCBA1 is pressed together on installing hole end and wheat Gram wind body 3 offsets, and the sidewall of installing hole has sidepiece annular seal convexity 21, this sidepiece ring packing Protruding 21 extruding are fitted in microphone body 3.

When microphone body 3 is placed in the installing hole of silica gel sheath 2 by this utility model, microphone body 3 meeting Sidepiece annular seal convexity 21 excess extruding to installing hole, makes sidepiece annular seal convexity 21 extruding patch It is combined in microphone body 3, it is achieved seal；This utility model only needs to ensure that prominent sidepiece annular is close Envelope protruding 21 contact with microphone body 3 crush seal, it is simple to realization, it is ensured that microphone body 3 and The sealing of silica gel sheath 2, can meet the sealing effectiveness of high request, and then ensure that audio acoustic effect. Additionally, this mike module has also reached certain water proofing property.

In order to improve sealing effectiveness further, in the mike module that above-described embodiment provides, installing hole Diapire has the base circle seal convexity 22 of MIC 23 periphery being positioned at silica gel sheath 2, and base circle is close Envelope protruding 22 extrudes laminating, as shown in Figure 3-4 with sender 31 periphery of microphone body 3.This enforcement Example utilizes base circle seal convexity 22 to make bottom microphone body 3 and is tightly connected with silica gel sheath 2, thus In ensureing the MIC 23 of sound entrance silica gel sheath 2 of microphone body 3 sender 31, it is to avoid sound Reveal, further increase audio acoustic effect.Certainly, this utility model can also be not provided with the above-mentioned end Portion's ring packing projection 22, only arranges sidepiece annular seal convexity 21.

Preferably, microphone body 3 and installing hole matched in clearance.This utility model increases microphone body 3 And the gap between silica gel sheath 2, so, microphone body 3 only with sidepiece annular seal convexity 21 Contacting with base circle seal convexity 22 extruding, microphone body 3 is less to the pressure area of silica gel sheath 2, Silica gel sheath 2 overvoltage can be prevented.Above-mentioned microphone body 3 can also interference fits with installing hole.

Further in technical scheme, mike module also includes being arranged between silica gel sheath 2 and PCBA1 Sealant 4.This utility model is in the case of silica gel sheath 2 with the pre-press-fit of PCBA1, also at both Between increase sealant 4, further increase the sealing effectiveness of silica gel sheath 2 and PCBA1, work as silica gel sheath When 2 internal structures can not seal, this structure can ensure that microphone body 3 function is unaffected.

For the ease of assembling, sealant 4 is preferably gum layer.Gum layer is bonded in silicon by this utility model Between gum cover 2 and PCBA1, silica gel sheath 2 is being carried out precompressed with PCBA1, thus by PCBA1 It is pressed together on the end of silica gel sheath 2, after this gum layer is bonding, does not produce displacement when precompressed, it is ensured that seal Reliability.It is understood that above-mentioned sealant 4 can also be layer of silica gel, especially by silica gel Overlap and ring packing projection is set on 2 end faces, it is also possible to for other structures, this is not done by this utility model has Body limits.

In order to optimize technique scheme further, mike module also include being arranged on silica gel sheath 2 away from Waterproof membrane 5 on the end face of PCBA1, waterproof membrane 5 covers the MIC 23 of silica gel sheath 2.Concrete, Waterproof membrane 5 is pasted onto on the end face of silica gel sheath 2.This utility model utilizes waterproof membrane 5 to further increase The sealing effectiveness of microphone assembly, it is ensured that water resistance requirement.Meanwhile, mike of the present utility model Body 3 is less to the squeezing action of silica gel sheath 2, and silica gel sheath 2 deforms less, it is possible to avoid because of silicon Gum cover 2 overvoltage touching waterproof membrane 5, it is ensured that audio acoustic effect.

This utility model embodiment additionally provides a kind of water-proof electronic appliance, including housing be arranged on housing Interior mike module, the mike module that this mike module provides for any of the above-described embodiment, it is ensured that The sealing of microphone body 3 and silica gel sheath 2, and then ensure that audio acoustic effect, its advantage is Brought by mike module, the concrete part that refer to be correlated with in above-described embodiment, at this most no longer Repeat.

In this specification, each embodiment uses the mode gone forward one by one to describe, and each embodiment stresses Being the difference with other embodiments, between each embodiment, identical similar portion sees mutually.

Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses This utility model.Multiple amendment to these embodiments will be aobvious for those skilled in the art And be clear to, generic principles defined herein can be without departing from spirit or scope of the present utility model In the case of, realize in other embodiments.Therefore, this utility model is not intended to be limited to institute herein These embodiments shown, and it is to fit to consistent with principles disclosed herein and features of novelty the widest Scope.

Claims

1. a mike module, including microphone body (3), silica gel sheath (2) and PCBA (1), Described microphone body (3) is built in the installing hole of described silica gel sheath (2), described PCBA (1) It is pressed together on described installing hole end and offsets with described microphone body (3), it is characterised in that described peace The sidewall in dress hole has sidepiece annular seal convexity (21), and described sidepiece annular seal convexity (21) is squeezed Overlay and be combined in described microphone body (3).

Mike module the most according to claim 1, it is characterised in that the diapire of described installing hole There is the base circle seal convexity (22) of MIC (23) periphery being positioned at described silica gel sheath (2), Described base circle seal convexity (22) is crowded with sender (31) periphery of described microphone body (3) Overlay conjunction.

Mike module the most according to claim 2, it is characterised in that described microphone body (3) With described installing hole matched in clearance.

Mike module the most according to claim 2, it is characterised in that also include being arranged on described Sealant (4) between silica gel sheath (2) and described PCBA (1).

Mike module the most according to claim 4, it is characterised in that described sealant (4) For gum layer.

6. according to the mike module described in any one of claim 1-5, it is characterised in that also include setting Put at described silica gel sheath (2) away from the waterproof membrane (5) on the end face of described PCBA (1), described anti- Moisture film (5) covers the MIC (23) of described silica gel sheath (2).

7. a water-proof electronic appliance, including housing and the mike module being arranged in described housing, its Being characterised by, described mike module is the mike module as described in any one of claim 1-6.