Microphone mounting structure

Abstract

The utility model provides a microphone mounting structure. The microphone mounting structure comprises a shell, a circuit board, a microphone and an elastic body. The microphone is arranged on the installation part of the circuit board and embedded in the containing groove of the elastic body, and the wall face of the containing groove abuts against the microphone so that the elastic body can wrap the microphone. The elastic body provided with the microphone is installed through the notch of the installation groove of the shell, the outer wall of the elastic body abuts against the wall face of the installation groove, the side, back to the microphone, of the installation part faces the via hole of the shell, assembly is convenient, and connection is reliable. External sound enters the microphone through the via hole of the shell and the first pickup hole of the mounting part and is picked up by the microphone. Under the condition that the loudspeaker is installed on the shell, the elastic body can play a role in sound insulation and vibration prevention, the elastic body enables the microphone and the loudspeaker to be sealed, air convection is avoided, the elastic body dissipates or reduces vibration energy transmitted to the shell by the loudspeaker, and pickup interference of the loudspeaker on the microphone is reduced.

Description

Technical Field

[0001] This application belongs to the field of microphone mounting structure technology, and particularly relates to a microphone mounting structure. Background Technology

[0002] A microphone, also known as a voice input device, is an energy conversion device that converts sound signals into electrical signals. Microphones are used in electronic products that require voice input. How to provide a microphone mounting structure that achieves sound insulation, shock absorption, and easy assembly is a problem that the industry needs to address. Utility Model Content

[0003] The purpose of this application is to provide a microphone mounting structure that achieves sound insulation, shock absorption, and convenient assembly of the microphone.

[0004] This application provides a microphone mounting structure, including: a housing, a circuit board, a microphone, and an elastomer; the housing has a mounting groove and a through hole, and the external space of the housing and the mounting groove are connected through the through hole; the housing can mount a speaker; the circuit board has a mounting portion, the microphone is disposed on one side of the mounting portion, and the mounting portion has a first pickup hole corresponding to the microphone; the elastomer has a receiving groove, the microphone is embedded in the receiving groove and abuts against the wall of the receiving groove; the elastomer can be inserted into the mounting groove through the groove opening, the outer wall of the elastomer abuts against the wall of the mounting groove, and the mounting portion is located between the through hole and the microphone.

[0005] In one alternative implementation, the elastomer and the mounting groove of the housing are adapted to each other in shape, and are both roughly cuboid, so that the elastomer can be fixed to the housing by inserting it into the mounting groove of the housing.

[0006] In one alternative implementation, when assembling the elastomer, the side of the elastomer where the microphone is located is positioned close to the outer surface of the housing to reduce the speaker's interference with the microphone's pickup.

[0007] In one alternative implementation, the shape of the receiving groove of the elastomer and the microphone head are adapted to each other, and the receiving groove and the microphone head are generally cuboid, so that the microphone head can be fixed on the elastomer when inserted into the receiving groove of the elastomer.

[0008] In one alternative implementation, the housing has an inner cavity that communicates with a mounting slot, and a speaker is disposed in the inner cavity of the housing with the speaker's sound-emitting surface facing outward.

[0009] In one alternative implementation, the circuit board is a flexible board, and a reinforcing plate is provided on the side of the mounting portion opposite to the microphone. The reinforcing plate has a second pickup hole communicating with the first pickup hole. The microphone is mounted and electrically connected to the flexible board, and the reinforcing plate improves the structural rigidity, allowing the microphone to be stably mounted on the elastic body.

[0010] In one alternative implementation, the reinforcing sheet includes a base and a plug portion, the plug portion being connected to the base and the plug portion and the base forming a predetermined angle; the elastomer has a socket, and the plug portion is inserted into the socket.

[0011] In one alternative implementation, both the base and the mounting portion are generally rectangular, with the base stacked and fixed onto the mounting portion. The insertion portion may also be generally rectangular.

[0012] In one alternative implementation, a guide edge may be provided at the end of the connector to facilitate insertion of the connector into the socket.

[0013] In one alternative implementation, there are two plug-in portions, each connected to one of the opposite ends of the base; there are two sockets, the receiving groove is located between the two sockets, and the two plug-in portions are inserted into the two sockets.

[0014] In one alternative implementation, the base and the insertion part are integrally formed, and the base and the insertion part are formed by bending metal sheets.

[0015] In one optional implementation, the base and the plug-in portion are connected by a connecting portion, the width of which is smaller than the width of the base and the width of the plug-in portion. This facilitates bending the connecting portion to create a predetermined angle between the base and the plug-in portion.

[0016] In one alternative implementation, the elastomer has a positioning groove that is connected to the receiving groove, and the base and the mounting portion are embedded in the positioning groove.

[0017] In one alternative implementation, the base is generally rectangular in shape, and the positioning groove is configured to fit the shape of the base so that the base can be stably connected when inserted into the positioning groove.

[0018] In one alternative implementation, a waterproof and sound-permeable membrane is further included. This membrane is fixed to one side of the elastomer corresponding to the mounting portion and covers the first pickup hole. The inner wall of the housing at the through-hole location faces the waterproof and sound-permeable membrane. The waterproof and sound-permeable membrane protects the microphone, improves waterproofing, and allows sound to pass through.

[0019] In one alternative implementation, the waterproof and sound-permeable membrane and the elastomer are connected by double-sided adhesive.

[0020] In one alternative implementation, one side of the elastomer has a receiving groove, an insertion hole, and a positioning groove, which are connected. The microphone is inserted into the receiving groove, and the mounting part and the base of the reinforcing sheet are located in the positioning groove. The insertion part of the reinforcing sheet is located in the insertion hole. A waterproof and sound-permeable membrane is connected to the side of the elastomer with the receiving groove and covers the receiving groove, insertion hole, and positioning groove, thereby achieving microphone waterproofing.

[0021] In one alternative implementation, the circuit board has an extension arm that is mechanically and electrically connected to the mounting portion. The surface of the elastomer has a clearance groove, and the extension arm is at least partially located within the clearance groove. This facilitates bending of the extension arm portion connected to the mounting portion, reducing the likelihood of damage to the extension arm when the elastomer is inserted into the housing mounting groove.

[0022] In one alternative implementation, the circuit board is a rigid-flexible composite board, including a mounting portion and an extension arm. The mounting portion is rigid and does not require reinforcing plates; it can be embedded in an elastomer. The extension arm is flexible and can be bent and extended to connect at a predetermined position.

[0023] The beneficial effects of the microphone mounting structure provided in this application embodiment are as follows: the microphone is located in the mounting part of the circuit board and embedded in the receiving groove of the elastomer. The wall of the receiving groove abuts against the microphone, so that the elastomer wraps around the microphone. The elastomer containing the microphone is inserted into the slot of the mounting groove of the housing, so that the outer wall of the elastomer abuts against the wall of the mounting groove. The side of the mounting part facing away from the microphone faces the through hole of the housing, which facilitates assembly and ensures reliable connection. External sound enters the microphone through the through hole of the housing and the first pickup hole of the mounting part and is picked up by the microphone. When the speaker is mounted in the housing, the elastomer can play a role in sound insulation and vibration damping. The elastomer seals the area between the microphone and the speaker and prevents airflow. The elastomer dissipates or reduces the vibration energy transmitted from the speaker to the housing, thereby reducing the sound pickup interference of the speaker to the microphone. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a three-dimensional assembly drawing of the microphone mounting structure provided in the embodiments of this application;

[0026] Figure 2 for Figure 1 A sectional view of the microphone mounting structure along line AA;

[0027] Figure 3An exploded perspective view of a portion of the microphone mounting structure provided in an embodiment of this application;

[0028] Figure 4 for Figure 3 A three-dimensional assembly drawing of the microphone mounting structure;

[0029] Figure 5 for Figure 4 A three-dimensional assembly diagram of the microphone mounting structure from another perspective;

[0030] Figure 6 for Figure 4 Further three-dimensional assembly drawing of the microphone mounting structure;

[0031] Figure 7 for Figure 6 A three-dimensional assembly diagram of the microphone mounting structure from another perspective;

[0032] Figure 8 for Figure 6 Further three-dimensional assembly drawings of the microphone mounting structure. Detailed Implementation

[0033] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0034] In the description of the embodiments of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0036] In the embodiments of this application, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0037] Please see Figures 1 to 5 This application provides a microphone mounting structure 100, including: a housing 10, a circuit board 20, a microphone 40, and an elastomer 50. The housing 10 has a mounting groove 11 and a through hole 12, and the external space of the housing 10 and the mounting groove 11 are connected through the through hole 12. The housing 10 can mount a speaker 70. The circuit board 20 has a mounting portion 21, and the microphone 40 is disposed on one side of the mounting portion 21. The mounting portion 21 has a first pickup hole 211 corresponding to the microphone 40. The elastomer 50 has a receiving groove 51, and the microphone 40 is embedded in the receiving groove 51 and abuts against the wall of the receiving groove 51. The elastomer 50 can be inserted into the mounting groove 11 through the slot 111 of the mounting groove 11, and the outer wall of the elastomer 50 abuts against the wall of the mounting groove 11. The mounting portion 21 is located between the through hole 12 and the microphone 40.

[0038] The elastomer 50 refers to a structural component made of elastic materials (such as silicone, nitrile rubber, fluororubber, etc.). The microphone 40 is inserted into the receiving groove 51 of the elastomer 50, whereby the microphone 40 is enclosed and fixed within the elastomer 50. The elastomer 50 is then inserted into the mounting groove 11 of the housing 10, with the elastomer 50 and the mounting groove 11 tightly fitted together to fix the elastomer 50 within the mounting groove 11.

[0039] The microphone mounting structure 100 provided in this embodiment has a microphone 40 mounted on the mounting portion 21 of the circuit board 20 and embedded in the receiving groove 51 of the elastic body 50. The wall of the receiving groove 51 abuts against the microphone 40, so that the elastic body 50 encloses the microphone 40. The elastic body 50, which contains the microphone 40, is inserted into the slot 111 of the mounting groove 11 of the housing 10, so that the outer wall of the elastic body 50 abuts against the wall of the mounting groove 11. The side of the mounting portion 21 facing away from the microphone 40 faces the through hole 12 of the housing 10, which facilitates assembly and ensures reliable connection. External sound enters the microphone 40 through the through hole 12 of the housing 10 and the first pickup hole 211 of the mounting portion 21 and is picked up by the microphone 40. When the speaker 70 is installed in the housing 10, the elastomer 50 can play a role in sound insulation and shock absorption. The elastomer 50 seals the area between the microphone 40 and the speaker 70 and prevents airflow. The elastomer 50 dissipates or reduces the vibration energy transmitted from the speaker 70 to the housing 10, thereby reducing the sound pickup interference of the speaker 70 to the microphone 40.

[0040] In some embodiments, please refer to Figure 2 , Figure 3 The microphone 40 can be a silicon microphone, which is a microelectromechanical system (MEMS) microphone that uses microsensors to convert sound wave vibrations into electrical signals and has a small structural footprint.

[0041] In some embodiments, please refer to Figure 2 , Figure 3 The elastomer 50 and the mounting groove 11 of the housing 10 are shaped to match each other, for example, they are roughly cuboids, so that the elastomer 50 can be inserted into the mounting groove 11 of the housing 10 and fixed to the housing 10. When assembling the elastomer 50 into the mounting groove 11, the side of the elastomer 50 that is positioned on the microphone 40 is placed close to the outer surface of the housing 10 to reduce the sound pickup interference of the speaker 70 to the microphone 40.

[0042] In some embodiments, please refer to Figure 2 , Figure 3 The shapes of the receiving groove 51 of the elastomer 50 and the microphone 40 are adapted to each other. For example, the receiving groove 51 and the microphone 40 are roughly cuboids, so that the microphone 40 can be fixed on the elastomer 50 when inserted into the receiving groove 51 of the elastomer 50.

[0043] In some embodiments, please refer to Figure 1 , Figure 2 The housing 10 can be assembled from a front shell and a bottom shell. The housing 10 has an inner cavity 13, which communicates with the mounting groove 11. The speaker 70 is disposed in the inner cavity 13 of the housing 10, with the sound-emitting surface of the speaker 70 facing the outside of the housing 10. An elastomer 50 encloses the microphone 40, and the microphone 40 is disposed close to the outer surface of the housing 10. The elastomer 50 seals the area between the microphone 40 and the speaker 70 and prevents airflow. The elastomer 50 dissipates or reduces the vibrational energy transmitted from the speaker 70 to the housing 10, thereby reducing the sound pickup interference of the speaker 70 to the microphone 40.

[0044] In some embodiments, please refer to Figure 2 The housing 10 contains a main board 80, and the microphone 40 and speaker 70 are all electrically connected to the main board 80. The housing 10 also contains a battery 90, which is electrically connected to the main board 80 to provide power.

[0045] In some embodiments, please refer to Figures 2 to 6The circuit board 20 is a flexible board. A reinforcing plate 30 is provided on the side of the mounting part 21 opposite to the microphone 40. The reinforcing plate 30 has a second pickup hole 311 communicating with the first pickup hole 211. The microphone 40 is mounted and electrically connected to the flexible board. The reinforcing plate 30 improves the structural rigidity, allowing the microphone 40 to be stably mounted on the elastic body 50. External sound enters the microphone 40 through the through hole 12 in the housing 10, the second pickup hole 311 of the reinforcing plate 30, and the first pickup hole 211 of the mounting part 21, where it is picked up by the microphone 40, thus improving the microphone 40's sound pickup effect.

[0046] In some embodiments, please refer to Figures 3 to 6 The reinforcing piece 30 includes a base 31 and a plug-in portion 32, with the plug-in portion 32 connected to the base 31 at a predetermined angle. The elastomer 50 has a socket 52, into which the plug-in portion 32 is inserted. The reinforcing piece 30, with its base 31 and plug-in portion 32, is easy to mold. The base 31 reinforces the flexible mounting portion 21, thereby improving structural rigidity. When assembling the microphone 40, the microphone 40 is inserted into the receiving groove 51 of the elastomer 50, the plug-in portion 32 is inserted into the socket 52, and the elastomer 50 encloses the plug-in portion 32, reliably fixing the reinforcing piece 30 to the elastomer 50, thereby reliably fixing the mounting portion 21 and the microphone 40 to the elastomer 50.

[0047] For example, both the base 31 and the mounting portion 21 are generally rectangular, with the base 31 stacked and fixed on the mounting portion 21. The insertion portion 32 may also be generally rectangular. A guide edge may be provided at the end of the insertion portion 32 to facilitate insertion of the insertion portion 32 into the insertion hole 52.

[0048] In some embodiments, please refer to Figures 3 to 6 There are two plug-in portions 32, each connected to one of the opposite ends of the base 31; there are two sockets 52, with a receiving groove 51 located between the two sockets 52, and the two plug-in portions 32 inserted into the two sockets 52 respectively. By providing two sets of plug-in portions 32 and sockets 52, the reinforcing sheet 30 is reliably connected to the elastomer 50, thereby reliably fixing the mounting portion 21 and the microphone 40 to the elastomer 50.

[0049] In some embodiments, please refer to Figure 3 The base 31 and the insertion part 32 are integrally formed structures, and are formed by bending metal sheets. This reinforcing sheet 30 is easy to form and has good structural strength. The metal sheet can be steel, etc.

[0050] In some embodiments, please refer to Figures 3 to 5The base 31 and the insertion part 32 are connected by a connecting part 33. The width D1 of the connecting part 33 is smaller than the width D2 of the base 31, and the width D1 of the connecting part 33 is smaller than the width D3 of the insertion part 32. Using a connecting part 33 with a smaller width between the base 31 and the insertion part 32 facilitates bending the connecting part 33 so that the base 31 and the insertion part 32 form a predetermined angle, such as 90° or other angles.

[0051] In some embodiments, please refer to Figure 3 , Figure 6 The elastomer 50 has a positioning groove 53, which is connected to the receiving groove 51. The base 31 and the mounting part 21 are embedded in the positioning groove 53. When assembling the mounting part 21 and the elastomer 50, the base 31 is placed in the positioning groove 53 of the elastomer 50, so that the base 31 is positioned and assembled on the elastomer 50.

[0052] For example, the base 31 is generally rectangular in shape, and the positioning groove 53 is configured to fit the shape of the base 31 so that the base 31 is stably connected when inserted into the positioning groove 53.

[0053] In some embodiments, please refer to Figures 2 to 8 It also includes a waterproof and sound-permeable membrane 60, which is fixed to one side of the elastomer 50 corresponding to the mounting portion 21 and covers the first pickup hole 211. The inner wall 12a of the housing 10 at the through hole 12 position and the waterproof and sound-permeable membrane 60 are arranged facing each other. The waterproof and sound-permeable membrane 60 can protect the microphone 40 and prevent external water from entering the microphone 40. External sound can be transmitted to the microphone 40 through the through hole 12 of the housing 10, the waterproof and sound-permeable membrane 60, and the first pickup hole 211 of the mounting portion 21.

[0054] In some embodiments, please refer to Figures 2 to 8 The waterproof and sound-permeable membrane 60 and the elastomer 50 are connected by double-sided adhesive tape 61. This ensures that the waterproof and sound-permeable membrane 60 is reliably connected to the elastomer 50. No double-sided adhesive tape is used at the location of the first pickup hole 211 to facilitate the transmission of external sound.

[0055] Double-sided adhesive tape can also be applied between the waterproof and sound-permeable membrane 60 and the housing 10 on the inner wall 12a at the through hole 12 to achieve a reliable connection between the waterproof and sound-permeable membrane 60 and the housing 10.

[0056] For example, one side of the elastomer 50 has a receiving groove 51, an insertion hole 52, and a positioning groove 53. The positioning groove 53 and the receiving groove 51 are connected. The microphone 40 is inserted into the receiving groove 51. The mounting part 21 and the base 31 of the reinforcing piece 30 are located in the positioning groove 53, and the insertion part 32 of the reinforcing piece 30 is located in the insertion hole 52. A waterproof and sound-permeable membrane 60 is connected to the side of the elastomer 50 with the receiving groove 51 and covers the receiving groove 51, the insertion hole 52, and the positioning groove 53 to make the microphone 40 waterproof.

[0057] In some embodiments, please refer to Figure 2 , Figure 3 The circuit board 20 has an extension arm 22, which is mechanically and electrically connected to the mounting portion 21. The surface of the elastomer 50 has a clearance groove 54, and the extension arm 22 is at least partially located in the clearance groove 54. Positioning the extension arm 22 in the clearance groove 54 facilitates partial bending of the extension arm 22 connected to the mounting portion 21, reducing the risk of damage to the extension arm 22 when the elastomer 50 is inserted into the mounting groove 11 of the housing 10. The extension arm 22 is a flexible portion, capable of bending and extending to connect to a predetermined location (e.g., the motherboard).

[0058] In other embodiments, the circuit board 20 is a rigid-flexible composite board, including a mounting portion 21 and an extension arm 22 connected to each other. The mounting portion 21 is a rigid portion that does not require a reinforcing piece 30 and can be embedded in the elastomer 50. The extension arm 22 is a flexible portion that can be bent and extended to connect at a predetermined position.

[0059] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A microphone mounting structure, characterized in that, include: Housing, circuit board, microphone, and elastomer; The housing has a mounting groove and a through hole, and the external space of the housing and the mounting groove are connected through the through hole; the housing can be used to mount a speaker; The circuit board has a mounting portion, the microphone is disposed on one side of the mounting portion, and the mounting portion has a first pickup hole corresponding to the microphone; the elastomer has a receiving groove, and the microphone is embedded in the receiving groove and abuts against the wall of the receiving groove; The elastomer can be inserted into the mounting groove through the groove opening of the mounting groove, the outer wall of the elastomer abuts against the wall of the mounting groove, and the mounting part is located between the through hole and the microphone.

2. The microphone mounting structure as described in claim 1, characterized in that, The circuit board is a flexible board, and a reinforcing plate is provided on the side of the mounting part opposite to the microphone. The reinforcing plate has a second pickup hole that communicates with the first pickup hole.

3. The microphone mounting structure as described in claim 2, characterized in that, The reinforcing sheet includes a base and a plug portion, the plug portion being connected to the base, and the plug portion and the base forming a predetermined angle; the elastomer has a socket, and the plug portion is inserted into the socket.

4. The microphone mounting structure as described in claim 3, characterized in that, The number of the plug-in parts is two, and the two plug-in parts are connected one-to-one to the opposite ends of the base; The number of the sockets is two, the receiving groove is located between the two sockets, and the two plug-in parts are inserted into the two sockets one by one.

5. The microphone mounting structure as described in claim 3, characterized in that, The base and the insertion part are integrally formed, and the base and the insertion part are formed by bending metal sheets.

6. The microphone mounting structure as described in claim 3, characterized in that, The base and the plug-in portion are connected by a connecting portion, the width of which is smaller than the width of the base and the width of which is smaller than the width of the plug-in portion.

7. The microphone mounting structure as described in claim 3, characterized in that, The elastomer has a positioning groove, which is connected to the receiving groove, and the base and the mounting part are embedded in the positioning groove.

8. The microphone mounting structure as described in any one of claims 1 to 7, characterized in that, It also includes a waterproof and sound-permeable membrane, which is fixed to one side of the elastomer corresponding to the mounting portion and covers the first pickup hole. The inner wall of the housing at the through hole position and the waterproof and sound-permeable membrane are arranged facing each other.

9. The microphone mounting structure as described in claim 8, characterized in that, The waterproof and sound-permeable membrane and the elastomer are connected by double-sided adhesive.

10. The microphone mounting structure as described in any one of claims 1 to 7, characterized in that, The circuit board has an extension arm that is mechanically and electrically connected to the mounting portion. The surface of the elastomer has a clearance groove, and the extension arm is at least partially located in the clearance groove.

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