Microphone module and electronic equipment

Abstract

The utility model relates to the technical field of electronic equipment, and provides a microphone module and electronic equipment, and the microphone module comprises a support which is provided with a first side surface, a second side surface and an installation groove which is communicated with the first side surface and the second side surface, and the first side surface and the second side surface are arranged at an angle; the sound guide part is accommodated in the mounting groove, the sound guide part is provided with a sound guide channel, a sound inlet of the sound guide channel faces the first side face, and a sound outlet of the sound guide channel faces the second side face; the microphone board is arranged on the second side face, and a sound receiving hole in the microphone board is opposite to the sound outlet. According to the utility model, the microphone board can be prevented from being poked by a sharp object extending from the sound inlet hole, and the microphone board is structurally protected.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic equipment, and in particular to a microphone module and electronic equipment. Background Art

[0002] Currently, electronic devices are installed in many outdoor scenes. Outdoor electronic devices must not only be able to adapt to the complex and harsh outdoor environmental conditions, but also have high structural reliability. In order to meet the application requirements of voice interaction, many outdoor electronic devices are also equipped with microphones, but there is a risk of microphones being damaged by human intervention. Utility Model Content

[0003] The utility model provides a microphone module and an electronic device, which are used to solve the problem that the microphone of the electronic device in the prior art has the risk of being poked and damaged.

[0004] The utility model provides a microphone module, comprising:

[0005] A bracket, comprising a first side surface, a second side surface and a mounting groove connecting the first side surface and the second side surface, wherein the first side surface and the second side surface are arranged at an angle;

[0006] a sound guide member, received in the mounting groove, the sound guide member being provided with a sound guide channel, a sound inlet of the sound guide channel facing the first side surface, and a sound outlet of the sound guide channel facing the second side surface;

[0007] A microphone board is arranged on the second side surface, and the sound receiving hole on the microphone board is opposite to the sound outlet.

[0008] According to a microphone module provided by the utility model, the sound guide channel includes a first channel and a second channel connected to each other, the first channel is connected to the sound inlet, the second channel is connected to the sound outlet, and the sound receiving hole faces the second channel close to the side of the first channel.

[0009] A microphone module provided by the utility model also includes:

[0010] A waterproof and breathable membrane is arranged on the first side surface and is opposite to the sound inlet.

[0011] A microphone module provided by the utility model also includes:

[0012] A sealing member, the sealing member is arranged around the periphery of the waterproof breathable membrane, the first side surface is provided with a first positioning groove, and the sealing member is limitedly located in the first positioning groove;

[0013] The mounting member is passed through the bracket and is used for lockingly connecting the bracket and the mounting surface so that the sealing member is pressed tightly between the bracket and the mounting surface.

[0014] According to a microphone module provided by the utility model, the sound guide component is an elastic body, and the sound guide component is pressed tightly between the bracket and the sealing component.

[0015] According to a microphone module provided by the utility model, the second side surface is provided with a second positioning groove, and the microphone board is limited in the second positioning groove.

[0016] A microphone module provided by the utility model also includes:

[0017] A locking member, the microphone board is fastened to the bottom of the second positioning slot via the locking member, and the sound guide is pressed between the microphone board and the bracket.

[0018] According to a microphone module provided by the utility model, the sound guide is an elastic body, and a sealing ring is protruded from one end of the sound guide facing the second side surface, and the sealing ring surrounds the sound outlet and the sound receiving hole.

[0019] According to a microphone module provided by the utility model, one of the groove wall of the installation groove and the sound guide is provided with a limiting groove, and the other is provided with a limiting protrusion, the limiting protrusion is adapted to the limiting groove, and the limiting groove is extended along the axial direction of the sound inlet.

[0020] The utility model also provides an electronic device, comprising a casing and any one of the above-mentioned microphone modules, wherein the casing is provided with a sound inlet hole, the microphone module is connected to the casing, and the sound inlet port is opposite to the sound inlet hole.

[0021] The microphone module and electronic device provided by the utility model are characterized in that a sound guide member with a sound guide channel is arranged in a bracket, and the bracket is provided with a first side surface and a second side surface which are angled with each other, the sound inlet of the sound guide channel faces the first side surface, and the sound outlet faces the second side surface, and the microphone board is arranged on the second side surface and its sound receiving hole is opposite to the sound outlet, thereby preventing the microphone board from being located on the axis of the sound inlet, that is, the axis of the sound inlet hole of the device casing, thereby preventing sharp objects extending from the sound inlet hole from poking the microphone board, structurally protecting the microphone board, and improving the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is an exploded schematic diagram of the microphone module provided by the utility model;

[0024] Figure 2 It is a partial structural schematic diagram of the microphone module provided by the utility model;

[0025] Figure 3 This is a partial structural cross-sectional view of the microphone module provided by the utility model;

[0026] Figure 4 It is a schematic diagram of the assembly structure of the microphone module and the housing provided by the utility model;

[0027] Figure 5 It is an exploded schematic diagram of the microphone module and the housing provided by the utility model.

[0028] Reference numerals:

[0029] 1. Bracket; 101. First side; 102. Second side; 11. Mounting groove; 12. First positioning groove; 13. Second positioning groove; 14. Second mounting hole; 15. Limiting groove; 16. First mounting hole; 2. Sound guide; 21. Sound guide channel; 21a. First channel; 21b. Second channel; 211. Sound inlet; 212. Sound outlet; 22. Limiting protrusion; 23. Sealing ring; 3. Microphone board; 31. Sound receiving hole; 32. Third mounting hole; 4. Waterproof breathable membrane; 5. Sealing member; 6. Housing; 61. Sound inlet; 62. Mounting column. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "first", "second" and "third" are used to clearly illustrate the numbering of product components and do not represent any substantial difference. The terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances. In addition, the meaning of "multiple" is two or more.

[0032] Combine the following Figure 1-Figure 5 The present invention describes a microphone module and an electronic device.

[0033] like Figure 1 As shown, the microphone module provided by the utility model includes a bracket 1, a sound guide 2 and a microphone board 3. The bracket 1 is provided with a first side surface 101, a second side surface 102 and a mounting groove 11 connecting the first side surface 101 and the second side surface 102, and the first side surface 101 and the second side surface 102 are arranged at an angle. The sound guide 2 is accommodated in the mounting groove 11. The sound guide 2 is provided with a sound guide channel 21, and the sound inlet 211 of the sound guide channel 21 faces the first side surface 101, and the sound outlet 212 of the sound guide channel 21 faces the second side surface 102. The microphone board 3 is arranged on the second side surface 102, and the sound receiving hole 31 on the microphone board 3 is opposite to the sound outlet 212.

[0034] It can be understood that the sound guide channel 21 is connected to the first side surface 101 and the second side surface 102 of the bracket 1, and the sound receiving hole 31 on the microphone board 3 is connected to the sound outlet 212 of the sound guide channel 21. The sound signal outside the microphone module enters from the sound inlet 211, is guided to the sound outlet 212 through the sound guide channel 21, and then enters the sound receiving hole 31, so as to be collected by the microphone board 3.

[0035] Since the first side surface 101 and the second side surface 102 are arranged at an angle, the axis of the sound inlet 211 and the axis of the sound outlet 212 intersect. Figure 4 and Figure 5 As shown, the microphone module is suitable for being installed on the housing 6 of the electronic device, and the sound inlet 211 of the sound guide channel 21 is arranged opposite to the sound inlet hole 61 on the housing 6. Specifically, the axis of the sound inlet hole 61 is colinear with the axis of the sound inlet 211 and intersects with the axis of the sound outlet 212.

[0036] The microphone module provided in the present embodiment is provided with a sound guide member 2 having a sound guide channel 21 in a bracket 1, and the bracket 1 is provided with a first side surface 101 and a second side surface 102 which are angled with each other, the sound inlet 211 of the sound guide channel 21 faces the first side surface 101, and the sound outlet 212 faces the second side surface 102, and the microphone board 3 is provided on the second side surface 102 and its sound receiving hole 31 is opposite to the sound outlet 212, thereby preventing the microphone board 3 from being located on the axis of the sound inlet 211, that is, the axis of the sound inlet hole 61 of the device casing 6, thereby preventing sharp objects extending from the sound inlet hole 61 from poking the microphone board 3, thereby structurally protecting the microphone board 3 and improving the service life of the product.

[0037] like Figure 4 As shown, in the embodiment of the utility model, the sound guide channel 21 includes a first channel 21a and a second channel 21b connected to each other, the first channel 21a is connected to the sound inlet 211, and the second channel 21b is connected to the sound outlet 212. The sound receiving hole 31 faces the side of the second channel 21b close to the first channel 21a, which is conducive to the microphone board 3 to collect sound signals.

[0038] Optionally, the first channel 21 a and the second channel 21 b are perpendicular to each other, and the axial direction of the sound receiving hole 31 is tilted relative to the axial direction of the second channel 21 b.

[0039] For details, see Figure 4 , the first channel 21a is arranged along the X direction, the second channel 21b is arranged along the vertical Y direction, the second side surface 102 is provided with an inclined surface inclined relative to the X direction, the inclined surface has a first end close to the first channel 21a and a second end away from the first channel 21a, and the distance between the first end and the axis of the first channel 21a is greater than the distance between the second end and the axis of the first channel 21a. When the microphone board 3 is in contact with the inclined surface, the axial direction I of the sound receiving hole 31 on the microphone board 3 is perpendicular to the inclined surface and is inclined relative to the axial direction Y of the second channel 21b, so that the sound receiving hole 31 faces the side of the second channel 21b close to the first channel 21a.

[0040] Optionally, the first channel 21a and the second channel 21b are arranged at an obtuse angle, the angle between their axes is 90° to 120°, and the axial direction of the sound receiving hole 31 is parallel to or colinear with the axial direction of the second channel 21b.

[0041] Furthermore, the microphone module provided by the present invention further includes a waterproof breathable membrane 4, which is disposed on the first side surface 101 and opposite to the sound inlet 211. The waterproof breathable membrane 4 can be bonded and fixed to the surface of the sound guide 2 and cover the sound inlet 211. The waterproof breathable membrane 4 can also be pressed between the sound guide 3 and the housing 6, or between the bracket 1 and the housing 6 when installed with the housing 6 of the device.

[0042] The microphone module provided by the present invention further comprises a sealing member 5 and a mounting member (not shown in the figure), the sealing member 5 is arranged around the periphery of the waterproof breathable membrane 4, the first side surface 101 is provided with a first positioning groove 12, and the sealing member 5 is limited in the first positioning groove 12. The mounting member is passed through the bracket 1, and is used to lock and connect the bracket 1 and the mounting surface, so that the sealing member 5 is pressed between the bracket 1 and the mounting surface.

[0043] Specifically, the seal 5 is an annular structure, and its thickness is greater than the thickness of the waterproof breathable membrane 4. The waterproof breathable membrane 4 is embedded in the inner wall surface of the seal 5, and the seal 5 supports the waterproof breathable membrane 4, which facilitates the installation of the waterproof breathable membrane 4.

[0044] The first side surface 101 is provided with a first positioning groove 12 at a position corresponding to the mounting groove 11. The mounting groove 11 is provided at the groove bottom of the first positioning groove 12. The shape of the first positioning groove 12 matches the shape of the sealing member 5. When the sealing member 5 is positioned and assembled to the first positioning groove 12, the waterproof breathable membrane 4 completely covers the sound inlet 211. The rapid installation and positioning of the waterproof breathable membrane 4 can be achieved by providing the sealing member 5 and the first positioning groove 12.

[0045] The bracket 1 is provided with a first mounting hole 16, and the mounting piece is passed through the first mounting hole 16 and is suitable for locking and connecting the bracket 1 and the mounting surface. The mounting surface can be a side of the housing 6 of the electronic device facing the sound inlet 211. Alternatively, the microphone module also includes a mounting plate, and the mounting piece is used to lock and connect the bracket 1 and the mounting plate, and the mounting surface is a side of the mounting plate facing the sound inlet 211. The bracket 1 is assembled with the mounting plate and then assembled with the housing 6. Among them, the mounting piece can be a detachable connector such as a bolt or a stud to facilitate the replacement and maintenance of the microphone module.

[0046] Specifically, the seal 5 is an elastomer, which can undergo a certain elastic deformation under the extrusion of the bracket 1 and the housing 6 to achieve a sealed connection between the bracket 1 and the housing 6. Combined with the waterproof breathable membrane 4, a good waterproof seal for the sound inlet 211 can be achieved.

[0047] The thickness of the seal 5 is greater than the depth of the first positioning groove 12 to ensure that the seal 5 can be pressed tightly between the bracket 1 and the mounting surface to ensure good sealing. The seal 5 can be made of materials such as but not limited to silicone, TPE, PVC, etc.

[0048] Furthermore, the sound guide member 2 is an elastic body, and the sound guide member 2 is pressed tightly between the bracket 1 and the sealing member 5 .

[0049] Specifically, Figure 2 and Figure 3 As shown, when the sound guide 2 is received in the mounting groove 11 and the mounting member does not lock the bracket 1 and the mounting surface, one end of the sound guide 2 facing the first side surface 101 protrudes from the bottom of the first positioning groove 12 .

[0050] like Figure 4 As shown, when the mounting member is locked to connect the bracket 1 and the mounting surface, the sound guide 2 and the sealing member 5 are simultaneously pressed between the bracket 1 and the mounting surface, that is, the sealing member 5 is pressed between the first positioning groove 12 and the mounting surface, and the sound guide 2 is pressed between the mounting groove 11 and the sealing member 5. It should be noted that due to the shape and the cut position of the sound guide 2, Figure 4 The extrusion relationship between the sealing member 5 and the sound guide member 2 is not shown.

[0051] In the embodiment of the utility model, the second side surface 102 is provided with a second positioning groove 13 , and the microphone plate 3 is confined in the second positioning groove 13 .

[0052] Specifically, the second side surface 102 is provided with a second positioning groove 13 at a position corresponding to the mounting groove 11, the mounting groove 11 is connected to the groove bottom of the first positioning groove 12 and the groove bottom of the second positioning groove 13, and the shape of the second positioning groove 13 is adapted to the shape of the microphone board 3. When the microphone board 3 is positioned and assembled to the second positioning groove 13, the sound receiving hole 31 on the microphone board 3 is opposite to the sound outlet 212 on the sound guide 2. The second positioning groove 13 can be provided to realize the rapid installation and positioning of the microphone board 3.

[0053] The microphone module provided by the utility model further includes a locking member (not shown in the figure), through which the microphone board 3 is fastened to the bottom of the second positioning groove 13. Specifically, the bracket 1 is provided with a second mounting hole 14, the microphone board 3 is provided with a third mounting hole 32 corresponding to the second mounting hole 14, and the locking member is passed through the second mounting hole 14 and the third mounting hole 32 and is locked to connect the microphone board 3 and the bracket 1.

[0054] Furthermore, the sound guide 2 is pressed tightly between the microphone plate 3 and the bracket 1. Specifically, Figure 2 As shown, when the locking member does not lock the microphone board 3 and the bracket 1, one end of the sound guide 2 facing the second side surface 102 protrudes from the bottom of the second positioning groove 13, so that when the locking member locks the microphone board 3, the sound guide 2 is pressed into the installation groove 11 to prevent the sound guide 2 from shaking in the installation groove 11.

[0055] Furthermore, the first side surface 101 and the second side surface 102 are perpendicular to each other, the first channel 21a is perpendicular to the first side surface 101, the second channel 21b is perpendicular to the second side surface 102, the bottom of the second positioning groove 13 is inclined relative to the second side surface 102, and the sound receiving hole 31 faces the side of the second channel 21b close to the first channel 21a.

[0056] Specifically, the inclined surface on the second side surface 102 described in the above embodiment that fits with the microphone board 3 is the bottom of the second positioning groove 13. When the microphone board 3 is fastened to the bottom of the second positioning groove 13 by the locking member, the microphone board 3 fits with the bottom of the second positioning groove 13, and the axial direction of the sound receiving hole 31 on the microphone board 3 is perpendicular to the bottom of the second positioning groove 13, so that the axial direction I of the sound receiving hole 31 is inclined relative to the axial direction Y of the second channel 21b, and the sound receiving hole 31 faces the side of the second channel 21b close to the first channel 21a.

[0057] In the embodiment of the present invention, the sound guide 2 is an elastic body. A sealing ring 23 is protruded from one end of the sound guide 2 facing the second side surface 102 . The sealing ring 23 surrounds the sound outlet 212 and the sound receiving hole 31 .

[0058] When the microphone board 3 is fastened to the bottom of the second positioning groove 13 through the locking member, and the sound guide 2 is pressed between the microphone board 3 and the bracket 1, the sound guide 2 as a whole will undergo a certain elastic deformation, and the sealing ring 23 will fit tightly with the microphone board 3, thereby achieving a sealed connection between the sound guide 2 and the microphone board 3, and preventing water from entering the microphone board 3 from the sound receiving hole 31. The sealing member 5 can be made of materials such as but not limited to silicone, TPE, and PVC.

[0059] In this embodiment, by setting the sound guide 2 as an elastic body, when the microphone board 3 is used to press the sound guide 2, the rigid contact between the microphone board 3 and the sound guide 2 can be avoided, so that the microphone board 3 is subjected to more uniform force, the damage to the microphone board 3 caused by stress can be reduced, and the processing accuracy requirements for the size of the sound guide 2 can also be reduced. At the same time, the elastic sealing ring 23 on the sound guide 2 can be used to seal the sound outlet 212 and the sound receiving hole 31, without the need to set up additional sealing parts, which simplifies the structure of the microphone module and improves the waterproof performance of the microphone module.

[0060] like Figure 1 As shown, in the embodiment of the utility model, a plurality of mounting grooves 11 are provided on the bracket 1, and the number of the sound guide 2, the waterproof breathable membrane 4 and the sealing member 5 in the above embodiment is the same as the number of the mounting grooves 11 and is arranged one by one.

[0061] The microphone board 3 includes a circuit board and a plurality of microphone elements arranged on the circuit board. The circuit board is limited in the second positioning groove 13. The sound receiving holes 31 of the plurality of microphone elements are arranged in a one-to-one correspondence with the sound outlets 212 of the plurality of sound guides 2 in the plurality of mounting grooves. At least one second mounting hole 14 is provided between each two adjacent mounting grooves 11, so as to lock and connect the microphone board 3 and the second positioning groove 13 through a plurality of locking members.

[0062] like Figure 1 and Figure 2As shown, in the embodiment of the utility model, one of the groove wall of the installation groove 11 and the sound guide 2 is provided with a limiting groove 15, and the other is provided with a limiting protrusion 22, and the limiting protrusion 22 is adapted to the limiting groove 15. The limiting groove 15 is extended along the axial direction of the sound inlet 211.

[0063] The limiting protrusion 22 is provided on one side of the sound guide 2, and the limiting groove 15 is provided on the groove wall of the mounting groove 11; or, the limiting groove 15 is provided on one side of the sound guide 2, and the limiting protrusion 22 is provided on the groove wall of the mounting groove 11. Optionally, the axial direction of the sound inlet 211 is perpendicular to the first side surface 101, that is, the extending direction of the limiting groove 15 is perpendicular to the first side surface 101.

[0064] Specifically, the first side surface 101 and the second side surface 102 are two adjacent side surfaces on the bracket 1, and the adjacent two ends of the mounting groove 11 are respectively connected to the first side surface 101 and the second side surface 102. In this embodiment, a limiting groove 15 is provided on one of the groove wall of the mounting groove 11 and the sound guide 2, and a limiting protrusion 22 is provided on the other. By using the cooperation of the limiting groove 15 and the limiting protrusion 22, the sound guide 2 is limited in the direction toward the second side surface 102, so as to prevent the sound guide 2 from escaping from the mounting groove 11 from the second side surface 102 during the assembly process, and the assembly of the sound guide 2 and the bracket 1 is facilitated.

[0065] In the embodiment of the utility model, the sound guide 2 is a cylindrical structure, the mounting groove 11 is a corresponding cylindrical groove, and the axis of the mounting groove 11 is perpendicular to the first side surface 101. The first positioning groove 12 is also a cylindrical groove, and the axis of the mounting groove 11 and the axis of the first positioning groove 12 are colinear. In this way, an annular step surface can be formed at the bottom of the first positioning groove 12, and the contact surface between the sealing member 5 and the sound guide 2 and the bottom of the first positioning groove 12 is annular, so that the sealing member 5 forms a uniform extrusion on the periphery of the sound guide 2. Furthermore, a limiting protrusion 22 or a limiting groove 15 is provided on the sound guide 2 to prevent the sound guide 2 from rotating in the mounting groove 11.

[0066] The utility model also provides an electronic device, which is not limited to outdoor electronic devices, but can also be indoor electronic devices. Figure 4 and Figure 5 As shown, the electronic device comprises a housing 6 and a microphone module as described in any of the above embodiments. The housing 6 is provided with a sound inlet 61, the microphone module is connected to the housing 6, and the sound inlet 211 is opposite to the sound inlet 61.

[0067] Specifically, the housing 6 is provided with a mounting post 62, which is passed through the first mounting hole 16 on the bracket 1. An internal threaded hole is provided at the end of the mounting post 62, and the mounting piece of the microphone module is passed through the first mounting hole 16 and the mounting post 62 and is threadedly connected to the mounting post 62.

[0068] Among them, when the electronic device is in use, the first channel 21a is arranged horizontally, and the second channel 21b extends upward from the first channel 21a. In this way, when the seal of the sound inlet 211 fails, water that penetrates from the sound inlet 211 can be prevented from flowing into the microphone board 3 along the sound guide channel 21, thereby protecting the microphone board 3.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A microphone module, characterized in that: include: A bracket, comprising a first side surface, a second side surface and a mounting groove connecting the first side surface and the second side surface, wherein the first side surface and the second side surface are arranged at an angle; a sound guide member, received in the mounting groove, the sound guide member being provided with a sound guide channel, a sound inlet of the sound guide channel facing the first side surface, and a sound outlet of the sound guide channel facing the second side surface; A microphone board is arranged on the second side surface, and the sound receiving hole on the microphone board is opposite to the sound outlet.

2. The microphone module according to claim 1, characterized in that: The sound guide channel includes a first channel and a second channel connected to each other, the first channel is connected to the sound inlet, the second channel is connected to the sound outlet, and the sound receiving hole faces the second channel and is close to a side of the first channel.

3. The microphone module according to claim 1, characterized in that: Also includes: A waterproof and breathable membrane is arranged on the first side surface and is opposite to the sound inlet.

4. The microphone module according to claim 3, characterized in that: Also includes: A sealing member, the sealing member is arranged around the periphery of the waterproof breathable membrane, the first side surface is provided with a first positioning groove, and the sealing member is limitedly located in the first positioning groove; The mounting member is passed through the bracket and is used for lockingly connecting the bracket and the mounting surface so that the sealing member is pressed tightly between the bracket and the mounting surface.

5. The microphone module according to claim 4, characterized in that: The sound guide is an elastic body and is pressed tightly between the bracket and the sealing member.

6. The microphone module according to claim 1, characterized in that: The second side surface is provided with a second positioning groove, and the microphone board is limited in the second positioning groove.

7. The microphone module according to claim 6, characterized in that: Also includes: A locking member, the microphone board is fastened to the bottom of the second positioning slot via the locking member, and the sound guide is pressed between the microphone board and the bracket.

8. The microphone module according to claim 7, characterized in that: The sound guide is an elastic body, and a sealing ring is protruded from one end of the sound guide facing the second side surface, and the sealing ring surrounds the sound outlet and the sound receiving hole.

9. The microphone module according to claim 1, characterized in that: One of the groove wall of the installation groove and the sound guide is provided with a limiting groove, and the other is provided with a limiting protrusion, the limiting protrusion is matched with the limiting groove, and the limiting groove is extended along the axial direction of the sound inlet.

10. An electronic device, characterized in that: It comprises a housing and a microphone module as described in any one of claims 1 to 9, wherein the housing is provided with a sound inlet hole, the microphone module is connected to the housing, and the sound inlet is opposite to the sound inlet hole.

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