In-vehicle microphone and vehicle

Abstract

The application discloses a vehicle-mounted microphone and a vehicle. The vehicle-mounted microphone comprises a shell, a waterproof membrane assembly and a mask, is used for mounting a microphone body, and is provided with a sound hole. The waterproof membrane assembly is installed on the shell and is used for covering the sound hole. The mask is connected with the shell and is used for covering the waterproof membrane assembly. The mask is provided with a sound passing hole and a plurality of drainage holes. A water passing cavity is formed between the mask and the waterproof membrane assembly. At least one drainage hole is connected with the outside and the water passing cavity. According to the technical scheme, the waterproof membrane assembly is installed on the shell and covers the sound hole, so that the waterproof membrane assembly can block rainwater from entering the shell. The mask is further provided with the drainage holes. The water passing cavity is formed between the mask and the waterproof membrane assembly. At least one drainage hole is connected with the outside and the water passing cavity. Therefore, the rainwater entering the mask through the sound passing hole can be discharged to the outside of the mask through the water passing cavity and the drainage holes, so that the waterproof membrane assembly is prevented from accumulating a large amount of water.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle accessories, in particular to a vehicle-mounted microphone and a vehicle applying the same. BACKGROUND

[0002] With the development of science and technology, there are more and more vehicle-mounted electronic products on vehicles, and the vehicle-mounted microphone is one of the vehicle-mounted electronic products. The traditional vehicle-mounted microphone is usually installed inside the vehicle body, so the traditional vehicle-mounted microphone has low requirements for waterproof and dustproof levels. In order to be able to perform voice control outside the vehicle body, a microphone needs to be arranged outside the vehicle body to acquire sound, but the environment outside the vehicle is complex and harsh, so the microphone has high requirements for waterproof and dustproof, and the traditional vehicle-mounted microphone is difficult to adapt to the environment outside the vehicle, thereby leading to the risk that the waterproof performance of the vehicle-mounted microphone is easily lost. SUMMARY

[0003] The main purpose of the present application is to provide a vehicle-mounted microphone, which aims to improve the waterproof performance of the vehicle-mounted microphone.

[0004] To achieve the above-mentioned purpose, the vehicle-mounted microphone provided by the present application comprises a shell, a waterproof membrane assembly and a mask, which are used to install a microphone body, the shell is provided with a sound hole; the waterproof membrane assembly is installed on the shell and is used to cover the sound hole; the mask is connected with the shell and is used to cover the waterproof membrane assembly; the mask is provided with a sound passing hole and a plurality of drainage holes, a water passing cavity is formed between the mask and the waterproof membrane assembly, and at least one of the drainage holes is communicated with the outside and the water passing cavity.

[0005] Optionally, an annular protrusion is protruded on the shell, the mask covers outside the annular protrusion, the waterproof membrane assembly is installed in the center hole of the annular protrusion, a drainage channel is arranged on the annular protrusion, and the drainage channel is communicated with the water passing cavity and at least one of the drainage holes.

[0006] Optionally, the drainage channel is in a bent shape.

[0007] Optionally, the drainage channel comprises:

[0008] a first sub-channel, which extends along the radial direction of the annular protrusion and is communicated with the water passing cavity;

[0009] a second sub-channel, which 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

[0010] a third sub-channel, which is provided with two and is respectively communicated with two ends of the second sub-channel, and the third sub-channel is also communicated with the drainage hole.

[0011] Optionally, a buffer cavity is formed between the inner wall of the mask and the outer wall of the annular protrusion, and the drain holes are provided in plurality, at least one of which is in communication with the buffer cavity.

[0012] Optionally, a sealing ring is further provided on the shell, the sealing ring is sleeved on the outside of the mask, and a gap is provided between the mask and the sealing ring.

[0013] Optionally, the waterproof membrane assembly comprises:

[0014] a waterproof membrane body covering the sound hole; and

[0015] a reinforcing ring connected to one side of the waterproof membrane body facing the sound hole, the sound hole being arranged in a staggered manner with the hollow area of the reinforcing ring.

[0016] Optionally, the sound holes are provided in plurality, and the plurality of sound holes are arranged in an annular array.

[0017] Optionally, the vehicle-mounted microphone further comprises a dust screen provided on one side of the waterproof membrane assembly facing the sound hole.

[0018] Optionally, the dust screen is mounted on the surface of the annular protrusion on the side facing the mask provided with the sound hole.

[0019] The present application further provides a vehicle comprising a vehicle body and the vehicle-mounted microphone described above, and the vehicle-mounted microphone is arranged on the vehicle body.

[0020] The technical scheme of the present application installs a waterproof membrane assembly on the shell, and the waterproof membrane assembly covers the sound hole, so that the waterproof membrane assembly can block a part of the rainwater from directly entering the shell through the sound hole, thereby reducing the risk of rainwater entering the shell to affect the performance of the microphone body component. In addition, the waterproof membrane assembly is covered with a mask, which has a good protective effect on the waterproof membrane, avoiding excessive dust and large water flow directly impacting the waterproof membrane assembly to cause deformation or rupture of the waterproof membrane assembly, thereby avoiding the risk of the waterproof performance of the waterproof membrane assembly being invalid after deformation or rupture. Further, the drain holes are provided on the mask, a water passing cavity is formed between the mask and the waterproof membrane assembly, and at least one drain hole is in communication with the outside and the water passing cavity, so that the rainwater entering the mask through the sound hole will further pass through the water passing cavity between the waterproof membrane assembly, and then be discharged to the outside of the mask through the drain hole in communication with the water passing cavity, thereby avoiding accumulation of too much water in the mask or on the waterproof membrane assembly. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only show some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor.

[0022] Figure 1 Figure 1 is a schematic diagram of the explosion structure of the vehicle-mounted microphone and part of the vehicle body of the present application.

[0023] Figure 2 Figure 2 is a top view of the vehicle-mounted microphone mounted on the vehicle body of the present application.

[0024] Figure 3 Figure 3 is a sectional view of A-A in Figure 1. Figure 2

[0025] Figure 4 is a sectional view of B-B in Figure 1. Figure 4 Figure 2 Figure 5 is a sectional view of C-C in Figure 1.

[0026] Figure 5 Figure 4 Figure 6 is an enlarged view of C in Figure 1.

[0027] Figure 6 Figure 7 is a schematic diagram of the structure of the vehicle-mounted microphone of the present application after the sealing ring, the mask, the waterproof film assembly and the dustproof screen are removed.

[0028] Figure 7 Figure 8 is an enlarged view of D in Figure 7. Figure 6

[0029] Figure 9 is a schematic diagram of the partial structure of the vehicle-mounted microphone mounted on the vehicle body of the present application. Figure 8 Explanation of reference numerals:

[0030]

[0031] Reference Name Reference Name 100 Housing 110 Sound hole 200 Waterproof membrane assembly 210 Waterproof membrane body 220 Reinforcing ring 300 Mask 310 Sound hole 320 Drainage hole 400 Annular protrusion 410 Center hole 420 Drainage channel 421 First sub-channel 422 Second sub-channel 423 Third sub-channel 500 Sealing ring 600 Dust screen 700 Vehicle body

[0032] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0034] ​​​It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0035] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of a person skilled in the art, and when the combination of technical solutions contradicts each other or cannot be realized, it should be considered that the combination of technical solutions does not exist and is not within the protection scope required by the present application.

[0036] The present application provides a vehicle-mounted microphone.

[0037] In the embodiments of the present application, please refer to Figures 1 to 5 The vehicle-mounted microphone comprises a shell 100, a waterproof membrane assembly 200 and a mask 300 for mounting a microphone body, the shell 100 is provided with a sound hole 110; the waterproof membrane assembly 200 is installed on the shell 100 and is used to cover the sound hole 110; the mask 300 is connected with the shell 100 and is used to cover the waterproof membrane assembly 200; the mask 300 is provided with a sound passing hole 310 and a plurality of drainage holes 320, a water passing cavity is formed between the mask 300 and the waterproof membrane assembly 200, and at least one drainage hole 320 communicates with the outside and the water passing cavity.

[0038] The shell 100 of the vehicle-mounted microphone is used to install the microphone body, the microphone body includes a circuit board, a diaphragm and the like arranged on the circuit board, the shell 100 is provided with a sound hole 110, the diaphragm is used to correspond to the sound hole 110, external sound enters the shell 100 through the sound hole 110, and then causes the diaphragm to vibrate, the signal of the diaphragm vibration is transmitted to the circuit board, the circuit board converts the signal of the diaphragm vibration into an electric signal, and finally the electric signal is converted into an amplified sound signal through the circuit board. It can be understood that if the sound hole 110 is often in an exposed state, rainwater and dust are easy to enter the shell 100 through the sound hole 110, and then affect the vibration of the diaphragm or affect the stability of the circuit board. The face cover 300 connected with the shell 100 is arranged in the application, the face cover 300 is used to cover the waterproof membrane assembly 200, the face cover 300 has good protection effect on the waterproof membrane, and the sound hole 310 is arranged on the face cover 300, the sound hole 310 is directed to the waterproof membrane assembly 200, so that the external sound can enter the inside of the face cover 300 from the sound hole 310 and be transmitted to the shell 100 through the waterproof membrane assembly 200. It can be understood that because the sound hole 310 is arranged on the face cover 300, rainwater inevitably enters the inside of the face cover 300 through the sound hole 310, and then falls on the waterproof membrane assembly 200. If too much water accumulates on the waterproof membrane assembly 200, the waterproof membrane is easy to be broken or deformed, so that the waterproof performance of the vehicle-mounted microphone is invalid. The technical scheme of the application is that the face cover 300 is provided with a plurality of drainage holes 320, and a water cavity is formed between the face cover 300 and the waterproof membrane assembly 200, the drainage holes 320 are communicated with the outside, that is, the water cavity, so that the rainwater entering through the sound hole 310 can flow to the drainage holes 320 through the water cavity, and then be discharged through the drainage holes 320, so as to avoid too much rainwater from accumulating on the waterproof membrane assembly 200.

[0039] Specifically, the mask 300 includes a top plate opposite to the shell 100 and a side plate connected between the top plate and the shell 100, and the sound hole 310 can be arranged on the top plate or the side plate. When the sound hole 310 is arranged on the top plate of the mask 300, the sound hole 310 can be directly opposite to the waterproof membrane assembly 200 or be arranged in a staggered manner with the waterproof membrane assembly 200, as long as the sound wave can be transmitted to the waterproof membrane through the sound hole 310. In order to facilitate drainage, the drainage hole 320 is closer to the waterproof membrane assembly 200 than the sound hole 310, and the drainage hole 320 can be arranged on the side plate of the mask 300. When the waterproof membrane assembly 200 is installed on the shell 100, the waterproof membrane assembly 200 can be directly installed at the sound hole 110; or the shell 100 is provided with a mounting groove in communication with the sound hole 110, and the waterproof membrane assembly 200 is installed in the mounting groove; or the waterproof membrane assembly 200 can be directly pasted on the outer wall surface of the shell 100 and cover the sound hole 110. When the mask 300 is connected with the shell 100, buckle connection, magnetic attraction connection or ultrasonic welding can be used.

[0040] The waterproof membrane assembly 200 is arranged on the shell 100, and the waterproof membrane assembly 200 covers the sound hole 110, so that the waterproof membrane assembly 200 can block a part of the rainwater from directly entering the shell 100 through the sound hole 110, thereby reducing the risk that the rainwater enters the shell 100 to affect the performance of the microphone body component. In addition, the mask 300 covers the waterproof membrane assembly 200, so that the mask 300 has a good protection effect on the waterproof membrane, thereby avoiding that too much dust and large water flow directly impact the waterproof membrane assembly 200 to deform or break the waterproof membrane assembly 200, and further avoiding the risk that the waterproof performance of the waterproof membrane assembly 200 fails to the components in the shell 100 after the deformation or breakage of the waterproof membrane assembly 200. Further, the drainage hole 320 is arranged on the mask 300, a water passing cavity is formed between the mask 300 and the waterproof membrane assembly 200, and at least one drainage hole 320 is in communication with the outside and the water passing cavity, so that the rainwater entering the mask 300 through the sound hole 310 further passes through the water passing cavity between the mask 300 and the waterproof membrane assembly 200, and is then discharged to the outside of the mask 300 through the drainage hole 320 in communication with the water passing cavity, thereby avoiding that too much water accumulates in the mask 300 or on the waterproof membrane assembly 200.

[0041] Further, please refer to Figure 1 and Figures 4 to 7 , the shell 100 is provided with an annular protrusion 400, the mask 300 covers the outside of the annular protrusion 400, the waterproof membrane assembly 200 is installed in the center hole 410 of the annular protrusion 400, the annular protrusion 400 is provided with a drainage channel 420, and the drainage channel 420 is in communication with the water passing cavity and at least one drainage hole 320.

[0042] By protruding the annular protrusion 400 on the shell 100, the mask 300 covers outside the annular protrusion 400, and the waterproof membrane assembly 200 is installed in the central hole 410 of the annular protrusion 400, so that the installation of the waterproof membrane assembly 200 is more stable, and the risk of the waterproof performance of the waterproof membrane assembly 200 to the sound hole 110 being invalid due to the sliding phenomenon of the waterproof membrane assembly 200 on the shell 100 is avoided. The direction from the side of the shell 100 opening the sound hole 110 to the side of the mask 300 facing the shell 100 is defined as the height direction. Specifically, the top end of the waterproof membrane assembly 200 (i.e. the surface of the waterproof membrane assembly 200 away from the shell 100) is lower than the top end of the annular protrusion 400, or the top end of the waterproof membrane assembly 200 can be flush with the top end of the annular protrusion 400. It can be understood that when the top end of the annular protrusion 400 is higher than the top end of the waterproof membrane assembly 200, the part of the central hole 410 of the annular protrusion 400 above the waterproof membrane assembly 200 will become part of the water passage, and the rainwater entering the mask 300 will also enter the central hole 410. In the embodiment, by opening the drainage channel 420 on the annular protrusion 400, and the drainage channel 420 is connected to the water passage and at least one drainage hole 320, the water in the central hole 410 can be further drained to the drainage hole 320 through the drainage channel 420, and then drained through the drainage hole 320, to avoid excessive rainwater accumulating in the central hole 410 of the annular protrusion 400.

[0043] Specifically, the drainage channel 420 can pass through the inner wall and the outer wall of the annular protrusion 400, so that the water in the central hole 410 can flow out of the annular protrusion 400 under the drainage of the drainage channel 420, to avoid forming a large water pressure on the waterproof membrane assembly 200. The outlet height of the drainage channel 420 can be consistent with the height of the at least one drainage 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 drainage channel 420 can be higher than the height of the drainage hole 320 of the mask 300, and the drainage hole 320 is arranged at one end of the mask 300 close to the shell 100.

[0044] As an example, please refer to Figure 6 and Figure 7 , the drainage channel 420 is in a bent shape.

[0045] By setting the drainage channel 420 in a bent shape, the drainage channel 420 is similar to a labyrinth structure, so that the external water and dust can be blocked from entering the face mask 300 through the drainage channel 420, thereby further improving the waterproof effect of the vehicle-mounted microphone. Specifically, in order to ensure that rainwater can flow out of the water passage, when the vehicle-mounted microphone is installed on the vehicle body, the drainage channel 420 is connected to one end of the water passage higher than the end connected to the drainage hole 320, thereby ensuring that rainwater can flow more smoothly from the water passage to the drainage hole 320, and then be discharged to the outside through the drainage hole 320; at the same time, it further prevents rainwater from flowing from the end of the drainage channel 420 connected to the drainage hole 320 to the end of the drainage channel 420 connected to the water passage, effectively preventing rainwater from entering the water passage from the drainage hole 320.

[0046] The drainage channel 420 can have a water inlet connected to the water passage and a water outlet connected to the drainage hole 320; or the drainage channel 420 can have a water inlet connected to the water passage and at least two water outlets connected to two drainage holes 320, respectively, so that the water flowing into the water inlet is divided into at least two paths, thereby improving the drainage efficiency.

[0047] The shape of the drainage channel 420 can be Z-shaped, S-shaped, Y-shaped, or other shapes. Of course, in other embodiments, the drainage channel 420 can also be a straight channel, so that the water in the water passage has a shorter flow path when flowing to the drainage hole 320, thereby facilitating the realization of high-efficiency drainage effect.

[0048] As an example, please refer to Figure 6 and Figure 7 The drainage 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 is connected to the water passage; 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 is connected to the first sub-channel 421; the third sub-channel 423 is provided with two, and is connected to both ends of the second sub-channel 422, respectively; the third sub-channel 423 is also connected to the drainage hole 320.

[0049] The first sub-channel 421 extends along 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-channel 421. The second sub-channel 422 extends along the circumferential direction of the annular protrusion 400, and is arranged at an angle with the first sub-channel 421, so that the water drainage channel 420 is in a meandering shape, so as to reduce the risk of foreign matter entering the mask 300 through the water drainage channel 420 on the basis of water inside the mask 300 being able to be drained through the water drainage channel 420, thereby improving the waterproof and dustproof effect of the vehicle-mounted microphone. By connecting the middle part of the second sub-channel 422 to the first sub-channel 421, and connecting the two third sub-channels 423 to the two ends of the second sub-channel 422 respectively, water flowing out of the first sub-channel 421 can 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.

[0050] In addition, it can be understood that, based on the second sub-channel 422 extending along the circumferential direction of the annular protrusion 400, and the third sub-channel 423 being connected to the second sub-channel 422 at one end and to the outside at the other end, the third sub-channel 423 is also arranged at an angle with the second sub-channel 422, thereby further improving the tortuosity of the shape of the water drainage channel 420, to further improve the reliability of the vehicle-mounted microphone in preventing foreign matter from entering the mask 300 through the water drainage channel 420, so that the vehicle-mounted microphone has a better waterproof and dustproof effect.

[0051] Further, as shown in Figure 4 , the inner wall of the mask 300 and the outer wall of the annular protrusion 400 form a buffer cavity, and the drainage hole 320 is provided with a plurality of drainage holes, at least one of which is connected to the buffer cavity.

[0052] It can be understood that when the mask 300 covers the annular protrusion 400, a gap can be formed between the outer wall of the annular protrusion 400 and the inner wall of the mask 300. When the sound hole 310 is not directly opposite the waterproof membrane assembly 200, or the top end of the annular protrusion 400 is flush with the top end of the waterproof membrane assembly 200, a part of the rainwater can directly flow between the annular protrusion 400 and the inner wall of the mask 300. The outer wall of the annular protrusion 400 and the inner wall of the mask 300 form a buffer cavity, and in this embodiment, at least one drainage hole 320 is connected to the buffer cavity, so that the rainwater flowing into the buffer cavity can be drained through the drainage hole 320 connected to the buffer cavity, avoiding the accumulation of rainwater in the buffer cavity. In addition, when the buffer cavity is provided, water in the central hole 410 can overflow into the buffer cavity and be drained through the drainage hole 320 connected to the buffer cavity, thereby further improving the drainage capacity of the vehicle-mounted microphone.

[0053] In an embodiment, please refer to Figure 1 ,Figure 3 、 Figure 4 and Figure 8 The shell 100 is further provided with a sealing ring 500, which is sleeved outside the mask 300 and has a gap between the mask 300.

[0054] It can be understood that the vehicle microphone is used to be mounted on the vehicle body 700. In general, in order to have a protective effect on the vehicle microphone, the vehicle microphone is usually embedded in the vehicle body 700, and only the sound hole 110 of the vehicle microphone needs to be able to communicate with the outside of the vehicle body 700. In the embodiment, by providing the sealing ring 500 on the shell 100, and sleeving the sealing ring 500 outside the mask 300 and having a gap between the mask 300, on the one hand, water can still be discharged from the drain hole 320, and the discharged water enters the gap between the sealing ring 500 and the mask 300; on the other hand, the sealing ring 500 can block a part of the water from directly entering the vehicle body after being discharged from the drain hole 320. Specifically, the sealing ring 500 can be bonded on the shell 100 to ensure the stability of the installation of the sealing ring 500 and to ensure that the sealing ring 500 and the shell 100 have good sealing performance.

[0055] In addition, the panel of the vehicle body 700 can be provided with a mounting hole, the size of the mounting hole being greater than the size of the mask 300, on the one hand, facilitating the installation of the vehicle microphone, and on the other hand, the sealing ring 500 can be clamped between the panel and the shell 100 of the vehicle microphone, so that the water discharged from the drain hole 320 enters the gap between the mask 300 and the sealing ring 500, and then can flow out of the panel, so that the rainwater is discharged to the outside of the vehicle body, further avoiding the risk of rainwater entering the vehicle body.

[0056] Please refer to Figure 1 and Figure 5 In order to ensure the waterproof stability of the waterproof film assembly 200, in an embodiment, the waterproof film assembly 200 includes a waterproof film body 210 and a reinforcing ring 220, the waterproof film body 210 covers the sound hole 110, and the reinforcing ring 220 is connected to one side of the waterproof film body 210 facing the sound hole 310, and the sound hole 310 and the hollow area of the reinforcing ring 220 are arranged in a staggered manner.

[0057] The waterproof membrane body 210 in the waterproof membrane assembly 200 is used to cover the sound hole 110 to play a major waterproof effect. The reinforcing ring 220 is connected to the side of the waterproof membrane body 210 facing the sound hole 310, so that when the rainwater entering from the sound hole 310 flows into the water cavity, the reinforcing ring 220 can bear part of the water pressure, avoiding the water flow directly impacting on the waterproof membrane body 210 to damage the waterproof membrane body 210 or make the waterproof membrane body 210 deformed. In addition, the reinforcing ring 220 has a ring structure, which can make the sound wave pass through the reinforcing ring 220 to the waterproof membrane body 210, and then enter the shell 100 through the waterproof membrane body 210. Specifically, the reinforcing ring 220 and the waterproof membrane body 210 can be connected by bonding, or can also be connected together by magnetic attraction or other ways. Further, the sound hole 310 and the hollow area of the reinforcing ring 220 are arranged in a staggered manner, so that the sound hole 310 is not directly opposite the waterproof membrane assembly 200, thereby avoiding the risk of the water flow flowing from the sound hole 310 directly impacting the waterproof membrane body 210 and causing the waterproof membrane body 210 to break.

[0058] In an embodiment, as shown in Figure 1 or Figure 2 , the sound hole 310 is provided with a plurality of sound holes 310, and the plurality of sound holes 310 are arranged in a ring array.

[0059] By providing a plurality of sound holes 310, the plurality of sound holes 310 are arranged in a ring array, which on the one hand ensures better sound transmission effect, and on the other hand can make the total opening area of the sound hole 310 relatively large, avoiding the effect that dust blocks the sound hole 310 and causes the vehicle-mounted microphone to be unable to normally collect external sound. Specifically, the sound hole 310 can be provided with three, four, five or more.

[0060] Of course, in other embodiments, the sound hole 310 can also be provided with only one or two.

[0061] Further, please refer to Figure 1 , Figure 4 and Figure 5 , in order to prevent dust from falling on the waterproof membrane assembly 200 and affecting the acoustic performance of the vehicle-mounted microphone, in the embodiment, the vehicle-mounted microphone further comprises a dust screen 600, and the dust screen 600 is arranged on the side of the waterproof membrane assembly 200 facing the sound hole 310.

[0062] By arranging the dustproof net 600 on the side of the waterproof film assembly 200 facing the sound hole 310, the dustproof net 600 can timely block dust from falling on the waterproof film assembly 200, thereby ensuring the stability of the acoustic performance of the vehicle microphone. In addition, it can be understood that the dustproof net 600 in the embodiment is arranged in the water passing cavity, so that when rainwater passes through the water passing cavity, the dustproof net 600 can be washed at the same time, thereby achieving the effect of cleaning the dustproof net 600 while draining water.

[0063] Specifically, as shown in Figure 5 The dustproof net 600 is installed on the side of the annular protrusion 400 away from the shell 100.

[0064] By installing the dustproof net 600 on the side of the annular protrusion 400 away from the shell 100, the annular protrusion 400 has a good supporting effect on the dustproof net 600, thereby ensuring that the dustproof net 600 has a stable installation effect. In addition, in this way, the water flow first passes through the dustproof net 600, then is discharged to the drain hole 320 from the drain passage 420, and finally is discharged out of the mask 300 through the drain hole 320, thereby ensuring that the water flow can wash and clean the dustproof net 600.

[0065] The application also provides a vehicle, which comprises a vehicle body 700 and a vehicle microphone. The specific structure of the vehicle microphone is referred to the above-mentioned embodiments. Since the vehicle adopts all the technical solutions of the above-mentioned embodiments, it has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here. The vehicle microphone is arranged on the vehicle body 700. Specifically, the vehicle can be a train or a car.

[0066] The above-mentioned is only the preferred embodiment of the application, and does not limit the patent scope of the application. Any equivalent structural transformation based on the inventive concept of the application, or direct / indirect application in other related technical fields is included in the patent protection scope of the application.

Claims

1. A vehicle-mounted microphone, characterized in that, include: A housing for mounting the microphone body, the housing having a sound hole; A waterproof membrane assembly, which is installed on the housing and covers the acoustic vent; A face mask is connected to the housing and used to cover the waterproof membrane assembly; the face mask is provided with a sound passage hole and a plurality of drainage holes, and a water passage cavity is formed between the face mask and the waterproof membrane assembly, and at least one of the drainage holes communicates with the outside and the water passage cavity; The housing has an annular protrusion, the face mask covers the annular protrusion, the waterproof membrane assembly is installed in the central hole of the annular protrusion, and the annular protrusion has a drainage channel, the drainage channel including: The first sub-channel extends radially along the annular protrusion and connects to the water passage cavity; A second sub-channel extends circumferentially along the annular protrusion, and its middle portion connects to the first sub-channel; and The third sub-channel has two sections, each connected to one end of the second sub-channel, and the third sub-channel is also connected to the drain hole. The vehicle-mounted microphone also includes a dustproof mesh, which is installed on the side of the annular protrusion away from the housing.

2. The vehicle-mounted microphone as described in claim 1, characterized in that, The drainage channel is bent.

3. The vehicle-mounted microphone as described in claim 1, characterized in that, A buffer cavity is formed between the inner wall of the mask and the outer wall of the annular protrusion. Multiple drainage holes are provided, and at least one drainage hole communicates with the buffer cavity.

4. The vehicle-mounted microphone as described in any one of claims 1 to 3, characterized in that, The housing is also provided with a sealing ring, which is fitted over the mask and has a gap between it and the mask.

5. The vehicle-mounted microphone as described in any one of claims 1 to 3, characterized in that, The waterproof membrane assembly includes: A waterproof membrane body, the waterproof membrane body covering the acoustic aperture; and A reinforcing ring is attached to the side of the waterproof membrane body facing the sound passage hole, and the sound passage hole is offset from the hollow area of ​​the reinforcing ring.

6. The vehicle-mounted microphone as described in claim 5, characterized in that, The sound passage is provided in multiple locations, and the multiple sound passages are distributed in a ring array.

7. The vehicle-mounted microphone as described in claim 1, characterized in that, The dustproof net is located on the side of the waterproof membrane assembly facing the sound hole.

8. The vehicle-mounted microphone as described in claim 7, characterized in that, The dustproof net is installed on the surface of the annular protrusion facing the side of the mask where the sound holes are opened.

9. A vehicle, characterized in that, It includes a vehicle body and a vehicle-mounted microphone as described in any one of claims 1 to 8, wherein the vehicle-mounted microphone is disposed on the vehicle body.

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