CN116193303A

CN116193303A - Vehicle microphone and vehicle

Info

Publication number: CN116193303A
Application number: CN202211597737.7A
Authority: CN
Inventors: 欧铭绪; 安春璐; 曹方豹; 于强
Original assignee: Goertek Microelectronics Inc
Current assignee: Goertek Microelectronics Inc
Priority date: 2022-12-12
Filing date: 2022-12-12
Publication date: 2023-05-30
Also published as: WO2024125517A1

Abstract

The invention discloses a vehicle-mounted microphone and a vehicle. The vehicle-mounted microphone comprises a shell, a waterproof membrane assembly and a mask, wherein the waterproof membrane assembly is used for installing a microphone body, and the shell is provided with a sound hole; the waterproof membrane component is arranged on the shell and used for covering the sound hole; the mask is connected with the shell and used for covering the waterproof membrane component; the face guard is equipped with and crosses sound hole and a plurality of wash port, is formed with the water cavity between face guard and the waterproof membrane subassembly, and at least one wash port communicates the external world and crosses the water cavity. According to the technical scheme, the waterproof membrane component is arranged on the shell and covers the sound hole, so that the waterproof membrane component can prevent rainwater holes from entering the shell. Through still being equipped with the wash port on the face guard, be formed with the water chamber between face guard and the waterproof membrane subassembly, and at least one wash port intercommunication external world and water chamber, then the rainwater that gets into the face guard through the sound hole can discharge outside the face guard through water chamber and wash port, avoids accumulating more water on the waterproof membrane subassembly.

Description

Vehicle microphone and vehicle

Technical Field

The invention relates to the technical field of vehicle accessories, in particular to a vehicle-mounted microphone and a vehicle using the same.

Background

With the development of technology, more and more vehicle-mounted electronic products are mounted on automobiles, and a vehicle-mounted microphone is one of the vehicle-mounted electronic products. The conventional car microphone is usually installed inside the car body, so that the conventional car microphone has low requirements on waterproof and dustproof grades. In order to perform voice control on the outside of the vehicle body, a microphone is required to be arranged on the outside of the vehicle body to acquire sound, but the outside of the vehicle is complex and severe, so that the waterproof and dustproof requirements on the microphone are high, the traditional vehicle-mounted microphone is difficult to adapt to the environment outside the vehicle, and the risk that the waterproof performance of the vehicle-mounted microphone is easy to fail is caused.

Disclosure of Invention

The invention mainly aims to provide a vehicle-mounted microphone, which aims to improve the waterproof performance of the vehicle-mounted microphone.

In order to achieve the above purpose, the vehicle-mounted microphone provided by the invention comprises a shell, a waterproof membrane component and a mask, wherein the shell is provided with an acoustic hole; the waterproof membrane component is mounted on the shell and used for covering the sound hole; the mask is connected with the shell and used for covering the waterproof membrane component; the face guard is equipped with and crosses sound hole and a plurality of wash port, the face guard with be formed with between the waterproof membrane subassembly and cross the water cavity, at least one the wash port intercommunication external world reaches cross the water cavity.

Optionally, the casing is protruding to be equipped with annular bulge, the face guard shroud in annular bulge is outside, waterproof membrane assembly install in annular bulge's centre bore, the last drain passage that has seted up of annular bulge, the drain passage intercommunication the water cavity with at least one the wash port.

Optionally, the drainage channel is in a bent shape.

Optionally, the drainage channel comprises:

the first sub-channel extends along the radial direction of the annular bulge and is communicated with the water passing cavity;

a second sub-channel; the second sub-channel extends along the circumferential direction of the annular protrusion, and the middle part of the second sub-channel is communicated with the first sub-channel; and

the third sub-channel is provided with two sub-channels and is respectively communicated with two ends of the second sub-channel, and the third sub-channel is also communicated with the drain hole.

Optionally, a buffer cavity is formed between the inner wall of the mask and the outer wall of the annular protrusion, a plurality of water draining holes are formed, and at least one water draining hole is communicated with the buffer cavity.

Optionally, a sealing ring is further arranged on the shell, the sealing ring is sleeved outside the mask, and a gap is arranged between the sealing ring and the mask.

Optionally, the waterproof membrane assembly comprises:

a waterproof membrane body covering the sound hole; and

the reinforcing ring is connected to one side of the waterproof membrane body, which faces the through hole, and the through hole and the hollow area of the reinforcing ring are arranged in a staggered mode.

Optionally, the plurality of via holes are arranged, and the plurality of via holes are distributed in a ring array.

Optionally, the vehicle microphone further comprises a dust screen, and the dust screen is arranged on one side of the waterproof membrane component, which faces the sound passing hole.

Optionally, the dust screen is mounted on a surface of the annular protrusion facing the side of the mask where the sound hole is formed.

The invention also provides a vehicle, which comprises a vehicle body and the vehicle-mounted microphone, wherein the vehicle-mounted microphone is arranged on the vehicle body.

According to the technical scheme, the waterproof membrane component is arranged on the shell and covers the sound hole, so that a part of rainwater can be prevented from directly entering the shell through the sound hole by the waterproof membrane component, and the risk that the rainwater enters the shell to influence the performance of the microphone body component is reduced. In addition, there is the face guard through waterproof membrane subassembly outer cover, and then this face guard has better guard effect to the waterproof membrane, avoids too much dust and great rivers direct impact waterproof membrane subassembly and makes waterproof membrane subassembly warp or break, and then avoids waterproof membrane subassembly to the risk that the waterproof performance of the part in the casing became invalid after warp or break. Further, through still being equipped with the wash port on the face guard, be formed with between face guard and the waterproof membrane subassembly and cross water chamber, and at least one wash port intercommunication external world and cross water chamber, then the rainwater that gets into the face guard through crossing the sound hole can further pass through cross water chamber with the waterproof membrane subassembly between, and then discharge outside the face guard from the wash port that communicates with crossing water chamber to avoid accumulating more water in the face guard or on the waterproof membrane subassembly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of an explosion structure of a vehicle-mounted microphone and a part of a vehicle body according to the present invention;

FIG. 2 is a top view of the vehicle microphone of the present invention mounted to a vehicle body;

FIG. 3 is a cross-sectional view of A-A of FIG. 2;

FIG. 4 is a cross-sectional view of B-B in FIG. 2;

FIG. 5 is an enlarged view of a portion of FIG. 4 at C;

FIG. 6 is a schematic view of the structure of the vehicle microphone of the present invention after the sealing ring, the face mask, the waterproof membrane assembly and the dust screen are eliminated;

FIG. 7 is a partial enlarged view at D in FIG. 6;

fig. 8 is a schematic view showing a partial structure of the vehicle-mounted microphone of the present invention when mounted on a vehicle body.

Reference numerals illustrate:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Shell body	110	Acoustic aperture
200	Waterproof membrane assembly	210	Waterproof film body
				220	Reinforcing ring	300	Face mask
310	Via hole	320	Drainage hole
				400	Annular protrusion	410	Center hole
420	Drainage channel	421	First sub-channel
				422	A second sub-channel	423	Third sub-channel
500	Sealing ring	600	Dust-proof net
				700	Vehicle body

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.

The invention provides a vehicle-mounted microphone.

In the embodiment of the present invention, please refer to fig. 1 to 5 in combination, the vehicle microphone includes a housing 100, a waterproof membrane assembly 200, and a mask 300 for mounting a microphone body, wherein the housing 100 is provided with an acoustic hole 110; the waterproof membrane assembly 200 is mounted to the housing 100 and is used for covering the sound hole 110; the face mask 300 is connected to the housing 100 and serves to cover the waterproof membrane assembly 200; the mask 300 is provided with a through hole 310 and a plurality of drain holes 320, a water passing cavity is formed between the mask 300 and the waterproof membrane assembly 200, and at least one drain hole 320 is communicated with the outside and the water passing cavity.

The microphone body is arranged in the shell 100 of the vehicle-mounted microphone, the microphone body comprises a circuit board, a vibrating diaphragm and the like arranged on the circuit board, a sound hole 110 is formed in the shell 100, the vibrating diaphragm is used for corresponding to the sound hole 110, external sound enters the shell 100 through the sound hole 110, vibration of the vibrating diaphragm is further caused, vibration signals of the vibrating diaphragm are transmitted to the circuit board, vibration signals of the vibrating diaphragm are converted into electric signals by the circuit board, and finally the electric signals are converted into amplified sound signals by the circuit board. It will be appreciated that if the sound hole 110 is always exposed, rainwater and dust can easily enter the housing 100 through the sound hole 110, so as to affect vibration of the diaphragm or stability of the circuit board. By arranging the mask 300 connected with the shell 100, the mask 300 is used for covering the waterproof membrane assembly 200, so that the mask 300 has a better protection effect on the waterproof membrane, and by arranging the sound passing holes 310 on the mask 300, the sound passing holes 310 face the waterproof membrane assembly 200, external sound can be ensured to enter the mask 300 from the sound passing holes 310 and be transmitted into the shell 100 through the waterproof membrane assembly 200. It will be appreciated that, due to the provision of the sound hole 310 in the face mask 300, rainwater inevitably enters the interior of the face mask 300 through the sound hole 310 and falls onto the waterproofing membrane assembly 200. If excessive water is accumulated on the waterproof membrane assembly 200, the waterproof membrane is easily broken or deformed, thereby resulting in failure of waterproof performance of the vehicle microphone. According to the technical scheme, the mask 300 is provided with the plurality of drain holes 320, the water passing cavity is formed between the mask 300 and the waterproof membrane assembly 200, the drain holes 320 are communicated with the outside, namely the water passing cavity, rainwater entering through the sound passing holes 310 can flow to the drain holes 320 through the water passing cavity, and then is discharged through the drain holes 320, so that excessive rainwater is prevented from being accumulated on the waterproof membrane assembly 200.

Specifically, the mask 300 includes a top plate opposite to the housing 100 and a side plate connected between the top plate and the housing 100, and the sound through holes 310 may be provided on the top plate or on the side plate. When the top plate of the mask 300 is provided with the via hole 310, the via hole 310 may be opposite to the waterproof membrane assembly 200, or may be offset from the waterproof membrane assembly 200, so long as it is possible to transmit sound waves to the waterproof membrane after passing through the via hole 310. To facilitate drainage, the drainage holes 320 may be provided on the side plate of the face mask 300, with the drainage holes 320 being closer to the waterproofing membrane assembly 200 than the via holes 310. When the waterproof membrane assembly 200 is mounted to the case 100, the waterproof membrane assembly 200 may be directly mounted at the sound hole 110; or the shell 100 is provided with a mounting groove which is communicated with the sound hole 110, and the waterproof membrane assembly 200 is arranged in the mounting groove; alternatively, the waterproof membrane assembly 200 may be directly adhered to the outer wall surface of the housing 100 and cover the sound hole 110. When the mask 300 is connected to the housing 100, a magnetic attachment, an ultrasonic welding, or the like may be used.

According to the technical scheme, the waterproof membrane assembly 200 is arranged on the shell 100, and the waterproof membrane assembly 200 covers the sound hole 110, so that part of rainwater can be prevented from directly entering the shell 100 through the sound hole 110 by the waterproof membrane assembly 200, and the risk that the rainwater enters the shell 100 to influence the performance of the microphone body component is reduced. In addition, the waterproof membrane assembly 200 is covered by the mask 300, so that the mask 300 has a good protection effect on the waterproof membrane, and the waterproof membrane assembly 200 is prevented from being deformed or broken due to direct impact of excessive dust and large water flow on the waterproof membrane assembly 200, so that the risk of failure of the waterproof performance of the waterproof membrane assembly 200 on components in the shell 100 after the waterproof membrane assembly 200 is deformed or broken is avoided. Further, by further providing the water drain hole 320 on the mask 300, a water passing cavity is formed between the mask 300 and the waterproof membrane assembly 200, and at least one water drain hole 320 is communicated with the outside and the water passing cavity, rainwater entering the mask 300 through the sound passing hole 310 further passes through the water passing cavity between the mask 300 and the waterproof membrane assembly 200, and is further discharged out of the mask 300 from the water drain hole 320 communicated with the water passing cavity, thereby avoiding accumulating more water in the mask 300 or on the waterproof membrane assembly 200.

Further, referring to fig. 1 and fig. 4 to 7 in combination, the casing 100 is provided with an annular protrusion 400, the mask 300 covers the annular protrusion 400, the waterproof membrane assembly 200 is installed in a central hole 410 of the annular protrusion 400, a drainage channel 420 is formed on the annular protrusion 400, and the drainage channel 420 is connected to the water cavity and at least one drainage hole 320.

Through protruding being equipped with annular protruding 400 on casing 100, face guard 300 shroud is outside annular protruding 400, and waterproof membrane subassembly 200 installs in annular protruding 400's centre bore 410, then makes waterproof membrane subassembly 200's installation more stable, avoids waterproof membrane subassembly 200 to take place the phenomenon of sliding on casing 100 and leads to its risk to the waterproof performance inefficacy of sound hole 110. The direction from the side of the housing 100 where the sound hole 110 is formed to the side of the face mask 300 facing the housing 100 is defined as the height direction, specifically, the top end of the waterproofing membrane assembly 200 (i.e., the surface of the waterproofing membrane assembly 200 away from the housing 100) is lower than the top end of the annular protrusion 400, or the top end of the waterproofing membrane assembly 200 may be flush with the top end of the annular protrusion 400. It will be appreciated that when the top end of the annular projection 400 is higher than the top end of the waterproofing membrane assembly 200, the portion of the central hole 410 of the annular projection 400 above the waterproofing membrane assembly 200 will become part of the water passing chamber, and that rainwater entering the mask 300 will also enter the central hole 410. In this embodiment, by providing the drainage channel 420 on the annular protrusion 400, and connecting the drainage channel 420 with the water cavity and at least one drainage hole 320, the water entering the central hole 410 can be further drained to the drainage hole 320 through the drainage channel 420, and further drained by the drainage hole 320, so as to avoid excessive rainwater accumulation in the central hole 410 of the annular protrusion 400.

Specifically, the drainage channel 420 may penetrate through the inner wall and the outer wall of the annular protrusion 400, so that water in the central hole 410 can flow out of the annular protrusion 400 under the drainage action of the drainage channel 420, thereby avoiding forming a larger water pressure on the waterproof membrane assembly 200. The outlet height of the drain channel 420 may be consistent with the height of the at least one drain hole 320 on the mask 300; or a gap is formed between the outer wall of the annular protrusion 400 and the inner wall of the mask 300, and the height of the outlet of the drain passage 420 may be higher than the height of the drain hole 320 of the mask 300, the drain hole 320 being provided at one end of the mask 300 near the housing 100.

As an example, please refer to fig. 6 and 7 in combination, the drainage channel 420 is bent.

By arranging the drain passage 420 in a bent shape, the drain passage 420 is made to have a structure similar to a labyrinth, so that external water and dust can be prevented from entering the mask 300 through the drain passage 420, thereby further improving the waterproof effect of the vehicle-mounted microphone. Specifically, in order to ensure that the rainwater can flow out from the water passing cavity, when the vehicle-mounted microphone is mounted on the vehicle body, one end of the water draining channel 420, which is connected with the water passing cavity, is higher than one end of the water draining channel, which is communicated with the water draining hole 320, so that the rainwater can flow from the water passing cavity to the water draining hole 320 more smoothly, and is further discharged to the outside through the water draining hole 320; meanwhile, the rainwater can be prevented from flowing from one end of the drainage channel 420, which is communicated with the drainage hole 320, to one end of the drainage channel 420, which is communicated with the water passing cavity, so that the rainwater can be effectively prevented from entering the water passing cavity from the drainage hole 320.

The drain passage 420 may have a water inlet communicating with the water passing chamber and a water outlet communicating with the drain hole 320; alternatively, the drain passage 420 may have one water inlet connected through the water chamber and at least two water outlets respectively connected to the two drain holes 320, so that water flowing in from the water inlet is simultaneously discharged in at least two paths, thereby improving the drain efficiency.

The drain 420 may have a zigzag shape, an S-shape, a Y-shape, or other shapes. Of course, in other embodiments, the drainage channel 420 may be a linear channel, so that the water flowing through the water cavity flows through a shorter path when flowing to the drainage hole 320, thereby facilitating efficient drainage.

As an example, referring to fig. 6 and 7 in combination, the drain channel 420 includes a first sub-channel 421, a second sub-channel 422, and a third sub-channel 423; the first sub-channel 421 extends along the radial direction of the annular protrusion 400 and communicates with the water passing chamber; the second sub-channel 422 extends along the circumferential direction of the annular protrusion 400, and the middle part of the second sub-channel 422 communicates with the first sub-channel 421; the third sub-channels 423 are provided with two, and are respectively communicated with two ends of the second sub-channel 422, and the third sub-channels 423 are also communicated with the water drain hole 320.

The first sub-passage 421 extends in the radial direction of the annular protrusion 400 so that water in the central hole 410 of the annular protrusion 400 can directly flow into the first sub-passage 421. The second sub-channel 422 extends along the circumference of the annular protrusion 400, and then the second sub-channel 422 and the first sub-channel 421 are arranged at an included angle, so that the water drain channel 420 is bent, and on the basis that water inside the mask 300 can be discharged through the water drain channel 420, the risk that external sundries enter the mask 300 through the water drain channel 420 can be reduced, and then the waterproof and dustproof effects of the vehicle-mounted microphone are improved. By communicating the middle part of the second sub-channel 422 with the first sub-channel 421 and communicating the two third sub-channels 423 with the two ends of the second sub-channel 422 respectively, the water flowing out of the first sub-channel 421 can be divided into two paths to flow in opposite directions in the second sub-channel 422 and can flow out of the third sub-channels 423 at the same time, thereby improving the drainage efficiency.

In addition, it can be understood that, based on the second sub-channel 422 extending along the circumferential direction of the annular protrusion 400, one end of the third sub-channel 423 is communicated with the second sub-channel 422, and the other end of the third sub-channel 423 is also communicated with the outside, so that an included angle is formed between the third sub-channel 423 and the second sub-channel 422, thereby further improving the tortuosity of the shape of the drainage channel 420, further improving the reliability of the vehicle-mounted microphone for preventing external impurities from entering the mask 300 through the drainage channel 420, and enabling the vehicle-mounted microphone to have better waterproof and dustproof effects.

Further, as shown in fig. 4, a buffer cavity is formed between the inner wall of the mask 300 and the outer wall of the annular protrusion 400, a plurality of drain holes 320 are provided, and at least one drain hole 320 communicates with the buffer cavity.

It will be appreciated that when the face mask 300 covers the annular protrusion 400, a gap may be formed between the annular protrusion 400 and the outer wall of the annular protrusion 400, and when the sound hole 310 is not aligned with the waterproof membrane assembly 200 or the top end of the annular protrusion 400 is aligned with the top end of the waterproof membrane assembly 200, a portion of rainwater may flow directly between the annular protrusion 400 and the inner wall of the face mask 300. A buffer cavity is formed between the outer wall of the defining annular protrusion 400 and the inner wall of the mask 300, and in this embodiment, by communicating at least one drainage hole 320 with the buffer cavity, it is possible to drain rainwater flowing into the buffer cavity through the drainage hole 320 communicated with the buffer cavity, so as to avoid rainwater accumulating in the buffer cavity. In addition, when the buffer cavity is provided, water in the central hole 410 overflows into the buffer cavity after being full and is discharged through the water discharge hole 320 communicated with the buffer cavity, so that the water discharge capability of the vehicle microphone is further improved.

In an embodiment, referring to fig. 1, 3, 4 and 8, a sealing ring 500 is further disposed on the housing 100, and the sealing ring 500 is sleeved outside the mask 300 and has a gap with the mask 300.

It will be appreciated that the vehicle microphone is configured to be mounted on the vehicle body 700 of the vehicle, and in order to provide protection to the vehicle microphone, the vehicle microphone is typically embedded in the vehicle body 700, and only the sound hole 110 of the vehicle microphone needs to be capable of communicating with the exterior of the vehicle body 700. In this embodiment, by arranging the sealing ring 500 on the housing 100, and sleeving the sealing ring 500 outside the mask 300 and providing a gap with the mask 300, on the one hand, water can still be drained from the drain hole 320, and the drained water enters the gap between the sealing ring 500 and the mask 300; on the other hand, the seal ring 500 can prevent a part of water from being discharged from the drain hole 320 and then directly entering the inside of the vehicle body. Specifically, the sealing ring 500 may be adhered to the housing 100, so as to ensure the stability of the installation of the sealing ring 500 and ensure good tightness between the sealing ring 500 and the housing 100.

In addition, the panel of the vehicle body 700 may be provided with a mounting hole, the size of which is larger than that of the mask 300, so that the vehicle microphone is convenient to mount on one hand, and on the other hand, the sealing ring 500 may be clamped between the panel and the housing 100 of the vehicle microphone, so that water discharged from the water discharge hole 320 enters a gap between the mask 300 and the sealing ring 500, and then may flow out of the panel, so that rainwater is discharged to the outside of the vehicle body, and the risk that rainwater enters the inside of the vehicle body is further avoided.

Referring to fig. 1 and 5 in combination, in order to ensure waterproof stability of the waterproof membrane assembly 200, in an embodiment, the waterproof membrane assembly 200 includes a waterproof membrane body 210 and a reinforcing ring 220, the waterproof membrane body 210 covers the sound hole 110, the reinforcing ring 220 is connected to a side of the waterproof membrane body 210 facing the sound hole 310, and the sound hole 310 and a hollow area of the reinforcing ring 220 are arranged in a staggered manner.

The waterproof membrane body 210 of the waterproof membrane assembly 200 is used for covering the sound hole 110 to play a major waterproof role. The reinforcing ring 220 is connected to the side of the waterproof membrane body 210 facing the through hole 310, so that when the rainwater entering from the through hole 310 flows into the water cavity, the reinforcing ring 220 can bear a part of the water pressure, and the water flow is prevented from directly impacting the waterproof membrane body 210 to damage the waterproof membrane body 210 or deform the waterproof membrane body 210. In addition, the reinforcing ring 220 has a ring structure, so that sound waves can be transmitted to the waterproof membrane body 210 through the reinforcing ring 220, and then enter the housing 100 through the waterproof membrane body 210. Specifically, the reinforcing ring 220 and the waterproof membrane body 210 may be connected by an adhesive manner, or may be connected by magnetic attraction or other manners. Further, the through holes 310 and the hollow area of the reinforcing ring 220 are arranged in a staggered manner, so that the through holes 310 can be prevented from directly facing the waterproof membrane assembly 200, and the risk of the waterproof membrane body 210 being broken due to direct impact of water flowing from the through holes 310 on the waterproof membrane body 210 is avoided.

In one embodiment, as shown in fig. 1 or fig. 2, a plurality of via holes 310 are provided, and the plurality of via holes 310 are distributed in an annular array.

Through setting up a plurality of via holes 310, a plurality of via holes 310 are annular array and distribute, then on the one hand guarantees better sound transmission effect, and on the other hand can make the total opening area of via holes 310 great relatively, avoids the dust to shelter from the effect that via holes 310 and lead to on-vehicle microphone unable normal collection outside sound. Specifically, the via holes 310 may be opened with three, four, five, or more.

Of course, in other embodiments, the via 310 may be provided with only one or two.

Further, referring to fig. 1, 4 and 5, in order to prevent dust from falling onto the waterproof membrane assembly 200 and affecting the acoustic performance of the vehicle microphone, in this embodiment, the vehicle microphone further includes a dust screen 600, and the dust screen 600 is disposed on a side of the waterproof membrane assembly 200 facing the sound through hole 310.

Through locating the dust screen 600 on the side of the waterproof membrane assembly 200 facing the sound passing hole 310, the dust screen 600 can timely block dust from falling onto the waterproof membrane assembly 200, so that the stability of the acoustic performance of the vehicle microphone is ensured. In addition, it can be appreciated that the dust screen 600 in this embodiment is disposed in the water passing cavity, so that when rainwater passes through the water passing cavity, the dust screen 600 can be flushed simultaneously, and thus the cleaning effect of the dust screen 600 can be achieved while water is drained.

Specifically, as shown in fig. 5, the dust screen 600 is mounted to the side of the annular protrusion 400 remote from the housing 100.

Through installing dust screen 600 in the side that annular protruding 400 kept away from casing 100, then make annular protruding 400 have better supporting effect to dust screen 600, guarantee that dust screen 600 has more stable installation effect. In addition, by the arrangement, water flow can firstly pass through the dust screen 600, then is discharged from the water discharge channel 420 to the water discharge hole 320, and finally is discharged out of the mask 300 through the water discharge hole 320, so that the effect that the water flow can wash and clean the dust screen 600 is ensured.

The invention also provides a vehicle, which comprises a vehicle body 700 and a vehicle-mounted microphone, wherein the specific structure of the vehicle-mounted microphone refers to the embodiment, and because the vehicle adopts all the technical schemes of all the embodiments, the vehicle has at least all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted herein. Wherein the vehicle-mounted microphone is provided to the vehicle body 700. Specifically, the vehicle may be a train or an automobile or the like.

The foregoing description is only of the preferred embodiments of the present invention and is not intended to limit the scope of the invention, and all equivalent structural changes made by the description of the present invention and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the invention.

Claims

1. A vehicle-mounted microphone, comprising:

the shell is used for installing the microphone body and provided with an acoustic hole;

the waterproof membrane component is arranged on the shell and covers the sound hole;

a face shield coupled to the housing and configured to cover the waterproof membrane assembly; the face guard is equipped with and crosses sound hole and a plurality of wash port, the face guard with be formed with between the waterproof membrane subassembly and cross the water cavity, at least one the wash port intercommunication external world reaches cross the water cavity.

2. The vehicle microphone of claim 1, wherein the housing has an annular protrusion protruding therefrom, the mask covers the annular protrusion, the waterproof membrane assembly is mounted in a central hole of the annular protrusion, and the annular protrusion has a drainage channel formed thereon, the drainage channel communicating the water passing chamber with at least one of the drainage holes.

3. The vehicle microphone of claim 2, wherein the drain channel is curved.

4. The vehicle microphone of claim 3, wherein the drain channel comprises:

5. The vehicle microphone of claim 2, wherein a buffer chamber is formed between the inner wall of the mask and the outer wall of the annular protrusion, the plurality of drain holes are provided, and at least one drain hole is communicated with the buffer chamber.

6. The vehicle microphone according to any of claims 1 to 5, wherein a sealing ring is further provided on the housing, and the sealing ring is sleeved outside the mask and has a gap with the mask.

7. The vehicle microphone according to any one of claims 1 to 5, wherein the waterproof membrane assembly includes:

a waterproof membrane body covering the sound hole; and

8. The vehicle microphone of claim 7, wherein a plurality of the via holes are provided, and a plurality of the via holes are distributed in a ring-shaped array.

9. The vehicle microphone of claim 2, further comprising a dust screen disposed on a side of the waterproof membrane assembly facing the via.

10. The vehicle microphone of claim 9, wherein the dust screen is mounted to a surface of the annular protrusion facing a side of the face mask where the sound hole is formed.

11. A vehicle comprising a vehicle body and the in-vehicle microphone according to any one of claims 1 to 10, the in-vehicle microphone being provided to the vehicle body.