CN110536194B - Wearable waterproof equipment and microphone seal structure thereof - Google Patents

Wearable waterproof equipment and microphone seal structure thereof Download PDF

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Publication number
CN110536194B
CN110536194B CN201910844134.4A CN201910844134A CN110536194B CN 110536194 B CN110536194 B CN 110536194B CN 201910844134 A CN201910844134 A CN 201910844134A CN 110536194 B CN110536194 B CN 110536194B
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China
Prior art keywords
mic
metal plate
waterproof
shell
sealing structure
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CN201910844134.4A
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CN110536194A (en
Inventor
李子朝
华洋
杨洋
栾庆蕾
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Goertek Techology Co Ltd
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Goertek Techology Co Ltd
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Priority to CN201910844134.4A priority Critical patent/CN110536194B/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/08Mouthpieces; Microphones; Attachments therefor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00Details of transducers, loudspeakers or microphones
    • H04R1/44Special adaptations for subaqueous use, e.g. for hydrophone

Abstract

The invention discloses a wearable waterproof device and a microphone sealing structure thereof, wherein the microphone sealing structure comprises a shell, an MIC metal plate arranged at a sound inlet hole of the shell, a first waterproof membrane hermetically attached to the first side of the MIC metal plate, an MIC arranged at the second side of the MIC metal plate through a sealing bracket, a sound transmitting hole corresponding to the sound inlet hole, a pressure relief balance channel, a vent hole and a second waterproof membrane, wherein one part of the pressure relief balance channel is positioned in the first waterproof membrane, the other part of the pressure relief balance channel is positioned in the shell and is communicated with an MIC cavity and an inner cavity of the shell, the vent hole is arranged on the shell and is communicated with the inner cavity of the shell and the outside, and the second waterproof membrane; the MIC cavity is a sealed cavity between the MIC and the first waterproof membrane, and the invention is beneficial to improving the acoustic performance and the equipment tone quality of the MIC in the use process.

Description

Wearable waterproof equipment and microphone seal structure thereof
Technical Field
The embodiment of the invention relates to the technical field of wearable electronic equipment, in particular to wearable waterproof equipment and a microphone sealing structure thereof.
Background
In recent years, wearable products are more and more widely applied in daily life of people, and along with the development of science and technology, the wearable products have higher and higher requirements on waterproof performance on the basis of meeting performance requirements. Currently, wearable products such as hand-ring type have low requirements on acoustic sealing, mainly single-point frequency control, and in order to meet acoustic audio algorithm requirements, microphone MIC sealing needs to be strictly required, and waterproof requirements of a higher level (e.g. 5ATM) need to be met at the same time.
In order to meet the high-level waterproof requirement, the waterproof membrane is used in the design of the MIC part, the higher the waterproof level is, the smaller the air permeability of the waterproof membrane is, the MIC cavity is a sealed cavity, the air pressure in the MIC cavity is increased due to various factors, and the waterproof membrane with the smaller air permeability is difficult to enable the air pressures on two sides to reach the balance in a short time, so that the waterproof membrane is bulged, and the acoustic performance of a product is influenced.
Disclosure of Invention
The embodiment of the invention aims to provide wearable waterproof equipment and a microphone sealing structure thereof, which can improve the acoustic performance of products and the tone quality of the equipment in the using process.
In order to solve the technical problem, an embodiment of the present invention provides a microphone sealing structure of a wearable waterproof device, including a case, an MIC metal plate disposed at a sound inlet of the case, a first waterproof membrane hermetically attached to a first side of the MIC metal plate, an MIC disposed at a second side of the MIC metal plate through a sealing bracket, the MIC metal plate having a sound-transmitting hole corresponding to the sound inlet, a pressure-releasing balance channel having one part disposed in the first waterproof membrane and the other part disposed inside the case and communicating an MIC cavity with an inner cavity of the case, a vent hole disposed on the case and communicating the inner cavity of the case with the outside, and a second waterproof membrane disposed at the vent hole; wherein the MIC cavity is a sealed cavity between the MIC and the first waterproof membrane.
Optionally, the MIC metal plate with fix through the some glue mode between the shell, the MIC metal plate is equipped with and is used for preventing at some glue in-process colloid flow in keep off the glue muscle position in the sound-transmitting hole.
Optionally, the glue blocking rib is located on the first side face of the MIC metal plate.
Optionally, the rib blocking position is a raised strip-shaped structure.
Optionally, the blocking rubber rib is perpendicular to the sealing support.
Optionally, the colloid is UV glue.
Optionally, a first ventilation channel in the pressure relief balance channel, which is located in the first waterproof membrane, is flat.
Optionally, the first waterproof film is attached to the first side of the MIC metal plate through a first double-sided adhesive tape in a sealing manner.
Optionally, the sealing support is a rubber support.
The embodiment of the invention provides wearable waterproof equipment which comprises the microphone sealing structure.
The embodiment of the invention provides wearable waterproof equipment and a microphone sealing structure thereof, wherein an MIC metal plate is arranged at a sound inlet of a shell in the microphone sealing structure, a first waterproof membrane is arranged at the first side of the MIC metal plate, the MIC is combined with the second side of the MIC metal plate through a sealing bracket, and the microphone sealing structure is also provided with a pressure relief balance channel, one part of the pressure relief balance channel is arranged in the first waterproof membrane, the other part of the pressure relief balance channel is arranged in the shell and is communicated with an MIC cavity and an inner cavity of the shell, so that after the air pressure in the MIC cavity is increased, the air in the MIC cavity can be transmitted to the inner cavity of the shell through pressure relief balance, and because the shell is provided with an air vent communicated with the inner cavity of the shell and the outside and a second waterproof membrane arranged at the air vent, the air pressure in the inner cavity of the shell can be balanced with the outside, the first waterproof membrane is prevented from being bulged, and the acoustic performance and the equipment tone quality of the MIC are further improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed in the prior art and the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a microphone sealing structure of a wearable waterproof device according to an embodiment of the present invention;
fig. 2 is a top view of a first waterproof membrane in the microphone sealing structure shown in fig. 1;
FIG. 3 is a side view of the first waterproofing membrane of FIG. 2;
fig. 4 is a partial structural schematic view of a microphone sealing structure of another wearable waterproof device provided in the embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a sealing bracket according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of an MIC metal plate according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a MIC metal plate and a housing after being combined from the inner side of the housing toward a sound-through hole according to an embodiment of the present invention.
Detailed Description
The embodiment of the invention provides wearable waterproof equipment and a microphone sealing structure thereof, which can improve the acoustic performance of a product and the tone quality of the equipment in the using process
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. 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 invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a microphone sealing structure of a wearable waterproof device according to an embodiment of the present invention.
The microphone sealing structure of the wearable waterproof equipment comprises a shell 1, an MIC metal plate 2 arranged at a sound inlet hole 11 of the shell 1, a first waterproof membrane 3 hermetically attached to the first side of the MIC metal plate 2, an MIC5 arranged at the second side of the MIC metal plate 2 through a sealing support 4, and a sound transmitting hole corresponding to the sound inlet hole, wherein one part of the microphone sealing structure is positioned in the first waterproof membrane 3, the other part of the microphone sealing structure is positioned in the shell 1 and is communicated with an MIC cavity and a shell inner cavity 12 through a pressure relief balance channel 6, an air vent 13 arranged on the shell 1 and communicated with the shell inner cavity 12 and the outside, and a second waterproof membrane 7 arranged at the air vent 13; wherein, the MIC cavity is a sealed cavity between the MIC5 and the first waterproof membrane 3.
It should be noted that, a sound inlet hole 11 is provided on a housing 1 of the wearable waterproof device, an MIC metal plate 2 is provided at the sound inlet hole 11 of the housing 1, a first side of the MIC metal plate 2 is a side close to a housing case, a first waterproof film 3 is provided at the first side of the MIC metal plate 2, and a sound-transmitting hole corresponding to the sound inlet hole 11 is provided on the MIC metal plate 2, an MIC5 is provided at one side of a sealing bracket 4, and the other side of the sealing bracket 4 is hermetically combined with a second side of the MIC metal plate 2, so that an MIC5 is provided at the second side of the MIC metal plate 2 through the sealing bracket 4, a sealed cavity is formed between the first waterproof film 3 and the MIC5, the sealed cavity is an MIC cavity, after an external sound is transmitted to the first waterproof film 3 through the sound inlet hole 11, the first waterproof film 3 vibrates therewith, and the vibration of the first waterproof film 3 compresses a gas in the MIC cavity to generate corresponding vibration, so that the acoustic signal is transmitted to the interior of the MIC5, and the process of converting sound into electricity is completed.
Specifically, since the MIC cavity is a sealed cavity, the air pressure in the MIC cavity may be inconsistent with the outside due to various factors, which may cause an imbalance of the air pressure at both sides of the first waterproof film 3, causing the first waterproof film 3 to deform (e.g., bulge), and particularly, may cause the air pressure inside the MIC cavity to be higher than the outside air pressure due to heat generated by the IC devices disposed in the enclosure cavity 11 during operation, causing the first waterproof film 3 to bulge, or when the sealing structure 4 is assembled to the second side of the MIC metal plate 2, the air pressure inside the MIC cavity is increased due to the compression of the air inside the MIC cavity, which may also cause the first waterproof film 3 to bulge, etc. when the first waterproof film 3 bulges, the air permeability of the first waterproof film 3 is small due to the high waterproof rating of the first waterproof film 3, and the air pressure at both sides of the first waterproof film 3 may be balanced in a short time, which may cause the first waterproof film 3 to bulge for a long time, when the first waterproofing membrane 3 is swollen, it is in an abnormal free state, and the vibration amplitude is limited, thereby causing the sound picked up by the MIC5 to become small or abnormal, affecting the acoustic characteristics of the product.
It should be noted that, in the embodiment, since the first waterproof membrane 3 is disposed on the first side of the MIC metal plate 2, the case of the enclosure 1 is disposed around the first waterproof membrane 3, and the first waterproof membrane 3 is formed by combining multiple layers, in order to balance the air pressure on both sides of the first waterproof membrane 3 rapidly in the embodiment, a first vent channel 61 may be disposed inside the first waterproof membrane 3, a second vent channel 62 (specifically, a slit) may be disposed inside the case of the enclosure 1, the first vent channel 61 communicates with the second vent channel 62, and the pressure relief balance channel 6 is integrally formed, that is, a part of the pressure relief balance channel 6 (i.e., the first vent channel 61) is disposed inside the first waterproof membrane 3, and another part (the second vent channel 62) is disposed inside the enclosure 1, and one end of the pressure relief balance channel 6 communicates with the MIC cavity, the other end intercommunication shell inner chamber 12, it is specific, the first end and the MIC cavity intercommunication of first vent channel 61, its second end is connected with the first end of second vent channel 62, the second end and the shell inner chamber 12 intercommunication of second vent channel 62, when the atmospheric pressure in the MIC cavity risees, the gas that is arranged in the MIC cavity can be transmitted to shell inner chamber 12 through pressure release balance channel 6 in to realize the equilibrium of the atmospheric pressure in first water proof membrane 3 both sides in the short time.
Wherein, as shown in the top view and the side view of the first waterproof membrane 3 in fig. 2 and fig. 3, the first waterproof membrane 3 is formed by combining a plurality of layers, and the first vent channel 61 is hidden inside the first waterproof membrane 3, wherein the dotted line in fig. 2 shows the structure of the layer of the first waterproof membrane 3 where the first vent channel 61 is provided, for example, the first waterproof membrane 3 in fig. 3 is sequentially a substrate layer 31, a first double-sided adhesive layer 32, a first sub-waterproof membrane layer 33 and a second double-sided adhesive layer 34 from top to bottom, wherein the substrate layer 31, the first double-sided adhesive layer 32 and the second double-sided adhesive layer 34 are all ring-shaped structures, and the first double-sided adhesive layer 33 is circular structure, wherein the first vent channel 61 in the balance channel 6 can be provided in the first double-sided adhesive layer 32 or in the substrate layer 31 in this embodiment, because the first double-sided adhesive layer 32 and the substrate layer 31 are both ring-shaped structures, so combine the back with the substrate layer 31 of first waterproof membrane 3 and the first side of MIC metal sheet 2, the MIC cavity specifically is the cavity that constitutes between the first sub-waterproof rete 33 of first waterproof membrane 3 and MIC5, so first passageway 61 of ventilating can communicate with the MIC cavity, the other end of first passageway 61 of ventilating communicates with the second passageway 62 of ventilating that sets up in the casing of shell 1, thereby when atmospheric pressure in the MIC cavity rises, gas in the MIC cavity can be through the balanced passageway 6 transmission of pressure release to in the shell inner chamber 12, realize the balance of the atmospheric pressure of first waterproof membrane 3 both sides. In order to reduce the difficulty of manufacturing processes and the degree of control over the size of the first ventilation channel 61, the first ventilation channel 61 may be preferably disposed in the first double-sided adhesive layer 32.
Specifically, the first vent channel 61 in the pressure relief balance channel 6 in this embodiment may be flat, and the second vent channel 62 may be a slit. Of course, in practical applications, the first ventilation channel 61 is not limited to be flat, but may be other specific shapes, and the embodiment is not particularly limited.
Specifically, the second vent channel 62 in this embodiment is not limited to a slit, and the second vent channel 62 may also be formed by a flat embedded pipe, or the second vent channel 62 may be formed by perforating the housing 1 after the housing 1 is manufactured, so that the second vent channel and the first vent channel 61 are communicated to form the air leakage balance channel 6; in addition, as shown in part 62 of fig. 1, when the enclosure 1 and the MIC metal plate 2 are disposed, the outer edge of the MIC metal plate 2 may not contact the enclosure 1, that is, a certain gap may be left between the MIC metal plate 2 and the enclosure 1, and the first vent channel 61 and the enclosure inner cavity 12 are communicated by the gap, and the specific implementation form of the present application is not particularly limited.
Furthermore, in order to ensure the sealing performance of the first waterproof membrane 3 and prevent MIC sealing failure, the height of the first ventilation channel 61 in the first waterproof membrane 3 in the pressure relief balance channel 6 can be set to be 8-12 micrometers, specifically 10 micrometers, so as to ensure the sealing effect while realizing the air pressure balance at both sides of the first waterproof membrane 3.
Further, fix through some glue modes between MIC metal sheet 2 in this embodiment and the shell 1, MIC metal sheet 2 is equipped with and is used for preventing to glue the in-process colloid flow in the fender glue rib position in the sound-transmitting hole in some glue.
It should be noted that the MIC metal plate 2 in this embodiment may be specifically bonded to the case 1 by a double-sided adhesive tape disposed around the MIC metal plate 2, but since the double-sided adhesive tape has certain elasticity, if the double-sided adhesive tape is bonded to the case 1 only by the double-sided adhesive tape disposed around the MIC metal plate 2, when the sealing bracket 4 provided with the MIC5 is subsequently assembled with the case 1 provided with the MIC metal plate 2, when the sealing bracket 4 moves relative to the case 1, the MIC metal plate 2 also moves relative to the case 1 due to a certain friction force between the sealing bracket 4 and the MIC metal plate 2, which affects the sealing performance between the MIC metal plate 2 and the case 1, thereby affecting the acoustic performance of the MIC 5. Therefore, for guaranteeing not to take place relative movement between MIC metal sheet 2 and shell 1 in this embodiment, set up on the MIC metal sheet 2 and keep off the fillet position to glue outside keeping off the fillet position, make the colloid after solidifying fix MIC metal sheet 2 and shell 1 and bond, thereby prevent when the sealed support 4 that is equipped with MIC5 is being assembled, MIC metal sheet 2 takes place to remove relative shell 1. The arrangement of the glue blocking rib position on the MIC metal plate 2 in the embodiment is to prevent liquid glue from flowing into the sound transmission holes of the MIC metal plate in the glue dispensing process, and the influence on the acoustic performance of the MIC5 is avoided.
Further, as shown in fig. 4, in order to ensure that the first waterproof film 3 can be hermetically attached to the MIC metal plate 2, in this embodiment, the first waterproof film 3 may be hermetically attached to the first side of the MIC metal plate 8 through the first double-sided tape 8. In this embodiment, the first double-sided adhesive 8 is used to attach the first waterproof film 3 to the first side of the MIC metal plate 2 because, compared to other liquid colloids or HAF adhesives, the double-sided adhesive has no flowability, and is disposed between the first waterproof film 3 and the MIC metal plate 2 so as not to block the pressure relief balance channel due to flowing, and if other liquid colloids or HAF adhesives having flowability (since the HAF adhesives need to be liquefied first and then cured) are used, the channel holes of the pressure relief balance channel 6 disposed in the first waterproof film 3 are blocked due to flowing of the liquid colloids, so that when the air pressure in the MIC cavity rises, the air pressures at two sides of the first waterproof film 3 cannot be balanced in a short time, so that the first waterproof film 3 bulges, and the MIC acoustic performance is affected, so in this embodiment, the first double-sided adhesive 8 can be used to attach the first waterproof film 3 to the first side of the MIC metal plate 2, not only can ensure sealing performance, but also can guarantee the permeability of pressure release balance channel 6, further ensure MIC 5's acoustic performance.
Specifically, since the elasticity and the sealing performance of the rubber are good, in order to achieve a better sealing effect, the sealing bracket 4 in the embodiment may be specifically a rubber bracket, and the thickness of the sealing rib position 41 in the sealing bracket 4 is 0.6mm to 0.8mm, specifically 0.75mm, wherein the sealing rib position 41 is a portion of the sealing bracket 4 for contacting with the MIC metal plate 2, as shown in fig. 5. When assembling the sealing support 4 and the MIC metal plate 2, the sealing rib position 41 of the sealing support 4 is compressed, and the thickness d of the sealing rib position 41 is set to be 0.6-0.8 mm, so that the interference amount is reduced, the assembly resistance is reduced, and the product assembly efficiency is improved.
Further, the glue blocking rib position 21 in this embodiment may be specifically disposed on the first side of the MIC metal plate 2, wherein the first side is a surface corresponding to the first side of the MIC metal plate 2, and is also disposed on the first waterproof film 3, and the glue is cured in the glue dispensing process and then is relatively hard, and the sealing bracket 4 is further disposed on the second side of the MIC metal plate 2, so as to avoid being obstructed by the solid glue when the sealing bracket 4 is disposed, the glue blocking rib position 21 may be disposed on the first side of the MIC metal plate 2, and the glue is applied to the edge of the first side of the MIC metal plate 2, so that the solidified glue fixes the MIC metal plate 2 and the housing 1.
Specifically, in order to more effectively prevent the liquid colloid from flowing into the sound-transmitting hole in the dispensing process and ensure the acoustic performance of the product, the rib-blocking position 21 in this embodiment may be a raised strip-shaped structure. Because protruding structure can be better block liquid glue and flow to the sound-transparent hole, so can set up to protruding strip structure with keeping off the glue muscle position 21, the length of strip structure can be equal to the size of MIC metal sheet 2 and confirm. Of course, the rib position 21 may also be an annular structure located outside the sound-transmitting hole, and the embodiment is not particularly limited.
Furthermore, in order to achieve a better fixing effect and reduce the usage amount of the glue, the glue blocking rib position may be arranged along a direction perpendicular to the sealing support 4, and the glue is dispensed outside the glue blocking rib position 21 to prevent the liquid glue from flowing into the sound transmitting hole, which may be specifically referred to fig. 6 and 7.
In addition, as shown in fig. 6 and 7, the first side and the second side of the MIC metal plate 2 in this embodiment may be straight sides, the third side and the fourth side of the MIC metal plate 2 may be arc sides, and the glue-blocking rib positions 21 are disposed on the second side of the MIC metal plate and perpendicular to the first side and the second side, so that the glue-blocking rib positions 21 are disposed perpendicular to the seal holder 4.
Specifically, for example, in the structure of fig. 1, the upper and lower portions of the sealing bracket 4 are respectively disposed at the first side and the second side of the MIC metal plate 2, that is, the two straight sides (the first side and the second side) of the MIC metal plate 2 are respectively the upper and lower sides of the MIC metal plate 2 in fig. 1, and then the two arc sides (that is, the third side and the fourth side) of the MIC metal plate 2 in fig. 1 are the front and rear sides of the MIC metal plate 2, wherein the glue blocking rib positions 21 are specifically disposed at the first side of the MIC metal plate 2 and are perpendicular to the first side and the second side, and for better fixing the MIC metal plate 2, one glue blocking rib position 21 (as shown in fig. 6) may be respectively disposed at the third side and the fourth side of the MIC metal plate 2, that is, two glue blocking rib positions 21 are also disposed, and the glue is dispensed at the edges of the third side and the fourth side of the MIC metal plate 2, the solidified solid glue 22 secures the MIC metal plate 2 to the housing 1 (as shown in figure 7).
Specifically, the length of the rib blocking position 21 of the protruding strip-shaped structure in this embodiment may be equal to the distance between the first side and the second side of the MIC metal plate 2, so as to ensure that the glue is dispensed at any position on the edges of the third side and the fourth side of the MIC metal plate 2, and the glue can be prevented from flowing into the sound-transmitting hole.
The colloid in this embodiment may specifically be UV glue (photosensitive glue), where the UV glue has an advantage of a fast curing speed, so that the colloid can be used to realize fast curing in the dispensing process, reduce the flowing time of the colloid, and further prevent the liquid colloid from flowing into the sound-transmitting holes of the MIC metal plate 2 to affect the acoustic performance of the MIC. Of course, in practical application, not only the UV glue but also other glues may be used, which may be determined according to practical situations, and this embodiment is not particularly limited.
It should be further noted that, as glue is needed to be dispensed in the direction perpendicular to the glue blocking rib position 21, and the cured glue can fix the MIC metal plate 2 and the housing 1, and therefore, the cured glue may block the gap between the MIC metal plate 2 and the housing 1, in order to reduce the difficulty in manufacturing processes in this embodiment, the first vent channel 61 in the pressure relief balance channel 6 may be specifically arranged in the direction parallel to the glue blocking rib position 21, and glue is not dispensed in the direction parallel to the glue blocking rib position 21, so that a certain gap still exists between the MIC metal plate 2 and the housing 1 in the direction, and thus the gap can be directly used as the second vent channel 62 in the pressure relief balance channel 6, so that the pressure relief balance channel 6 communicates the MIC cavity and the housing inner cavity 12.
Of course, if the first ventilation channel 61 in the pressure relief balance channel 6 is arranged perpendicular to the direction of the glue blocking rib position 21, and the second ventilation channel 62 needs to pass through the solidified glue, a pipeline communicated with the first ventilation channel 62 and the housing inner cavity 12 may be pre-buried as the second ventilation channel 62 before dispensing, or a channel communicated with the first ventilation channel and the housing inner cavity 12 may be manufactured as the second ventilation channel 62 in the solid glue by drilling after dispensing is completed. In this embodiment, the specific arrangement and manufacturing method of the pressure relief balance channel 6 are not particularly limited, as long as the pressure relief balance channel 6 can communicate the MIC cavity with the case inner cavity 12.
In addition, it should be noted that when the microphone sealing structure is assembled, the microphone sealing structure may be assembled in the following manner, specifically, the first waterproof film 3 and the housing 1 may be assembled to form the structure a, the MIC metal plate 2 and the first double-sided adhesive 8 are assembled to form the structure B, then the structure a and the structure B are assembled to form the structure C, the MIC and the sealing bracket are assembled to form the structure D, then the structure C and the structure D are integrally assembled, and finally the microphone sealing structure E is formed.
The embodiment of the invention provides a microphone sealing structure of wearable waterproof equipment, wherein an MIC metal plate is arranged at a sound inlet of a shell, a first waterproof membrane is arranged at the first side of the MIC metal plate, MIC is combined with the second side of the MIC metal plate through a sealing bracket, and the microphone sealing structure is also provided with a pressure relief balance channel, one part of which is positioned in the first waterproof membrane, the other part of which is positioned in the shell and is communicated with an MIC cavity and an inner cavity of the shell, so that when the air pressure in the MIC cavity rises, the air in the MIC cavity can be transmitted to the inner cavity of the shell through pressure relief balance, and because the shell is provided with an air vent communicated with the inner cavity of the shell and the outside and a second waterproof membrane arranged at the air vent, the air pressure in the inner cavity of the shell can be balanced with the outside through the air vent and the second waterproof membrane, and further the air pressure in, the first waterproof membrane is prevented from being bulged, and the acoustic performance and the equipment tone quality of the MIC are further improved.
On the basis of the above embodiments, embodiments of the present invention provide a wearable waterproof apparatus, including the microphone sealing structure as described above.
It should be noted that the wearable waterproof device provided in this embodiment has the same beneficial effects as the microphone sealing structure provided in the above embodiment, and for the specific description of the microphone sealing structure related in this embodiment, please refer to the above embodiment, which is not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (9)

1. A microphone sealing structure of wearable waterproof equipment comprises a shell, an MIC metal plate arranged at a sound inlet of the shell, a first waterproof membrane hermetically attached to the first side of the MIC metal plate, an MIC arranged at the second side of the MIC metal plate through a sealing support, and a sound through hole arranged on the MIC metal plate and corresponding to the sound inlet, and is characterized by further comprising a pressure relief balance channel, a vent hole and a second waterproof membrane, wherein one part of the pressure relief balance channel is positioned in the first waterproof membrane, the other part of the pressure relief balance channel is positioned in the shell and is communicated with an MIC cavity and an inner cavity of the shell, the vent hole is arranged on the shell and is communicated with the inner cavity of the shell and the outside, and the second waterproof membrane is arranged; wherein the MIC cavity is a sealed cavity between the MIC and the first waterproof membrane; the MIC metal sheet with fix through the mode of gluing between the shell, the MIC metal sheet is equipped with and is used for preventing in-process colloid flow in the point gluing fender glue rib position in the sound-transmitting hole.
2. The microphone sealing structure of a wearable waterproof device of claim 1, wherein the glue bar is located at the first side of the MIC metal plate.
3. The microphone sealing structure of wearable waterproof equipment of claim 2, wherein the rubber rib is a raised strip-shaped structure.
4. The microphone sealing structure of wearable waterproof apparatus according to claim 2, wherein the stopper rib is located perpendicular to the sealing holder.
5. The microphone sealing structure of wearable waterproof device according to claim 3, characterized in that the gel is UV glue.
6. The microphone sealing structure of wearable waterproof device of claim 1, wherein a first vent channel of the pressure relief balance channel located in the first waterproof membrane is flat.
7. The microphone sealing structure of a wearable waterproof device according to any one of claims 1 to 6, wherein the first waterproof film is attached to the first side of the MIC metal plate by a first double-sided adhesive tape seal.
8. The microphone sealing structure of wearable waterproof apparatus according to claim 7, characterized in that the sealing bracket is a rubber bracket.
9. Wearable waterproof device, characterized in that it comprises a microphone sealing structure according to any of claims 1 to 8.
CN201910844134.4A 2019-09-06 2019-09-06 Wearable waterproof equipment and microphone seal structure thereof Active CN110536194B (en)

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CN201910844134.4A CN110536194B (en) 2019-09-06 2019-09-06 Wearable waterproof equipment and microphone seal structure thereof

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Application Number Priority Date Filing Date Title
CN201910844134.4A CN110536194B (en) 2019-09-06 2019-09-06 Wearable waterproof equipment and microphone seal structure thereof

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CN110536194A CN110536194A (en) 2019-12-03
CN110536194B true CN110536194B (en) 2020-12-11

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