Directional MIC assembly with double-sided sound intake and electronic device

Abstract

A directional MIC assembly (100) with double-sided sound intake and an electronic device (10). The electronic device (10) comprises the directional MIC assembly (100) with double-sided sound intake, wherein the MIC assembly (100) comprises a front housing (1) having a pair of sound intake holes (13) and an MIC device (2) provided on the inner side of the front housing (1); the MIC device (2) is provided with two receiving holes (21); and the MIC assembly (100) further comprises a fixing member (3) assembled on the inner side of the front housing (1). The fixing member (3) is provided with an assembly cavity (31), and two sound intake channels (32) which are in communication with the assembly cavity (31). The MIC device (2) is mounted in the assembly cavity (31), the two receiving holes (21) of the MIC device (2) are respectively in communication with the two sound intake channels (32), and the two sound intake channels (32) are respectively in communication with the two sound intake holes (13) of the same pair. Both the front housing (1) and the fixing member (3) can be separately processed, the arrangement of the sound intake holes (13) can meet the requirements of appearance design, external ports of the sound intake channels (32) on the fixing member (3) are not limited by appearance, can be processed by multiple methods such as molding and CNC, and can particularly be manufactured on a large scale at a low cost and a high yield by means of a mold, and the mold is simpler in design and lower in cost.

Description

Directional double-side sound input MIC components and electronic equipment Technical Field

[0001] The utility model belongs to the technical field of acoustic-electrical conversion, and in particular relates to a directional double-side sound-input MIC component and an electronic device. Background Art

[0002] A MIC, also known as a microphone, is an energy conversion device that converts sound signals into electrical signals. It's a transliteration of the English word "Microphone." Many devices with audio transmission capabilities, such as AR glasses and mobile phones, are equipped with microphones.

[0003] MICs usually have single-sided sound intake, and only one side needs to be sealed during installation. However, when encountering a design scheme for a directional double-sided sound intake MIC, the single-sided sound intake MIC installation structure cannot adapt. If the single-sided sound intake MIC installation structure is continued, two through holes connected to the MIC need to be opened in the electronic device housing. Using a mold will make the demolding complicated, and using CNC will be costly. The small hole makes the drill bit easy to break, the size cannot be controlled, and the appearance has unacceptable sharp corners, which makes it difficult to meet product requirements. Technical issues

[0004] The purpose of the utility model is to provide a directional double-side sound intake MIC component and electronic equipment, which can meet the appearance design requirements while ensuring performance, and realize low-cost and high-yield mold mass production. Technical Solutions

[0005] The technical solution of the present utility model is as follows: a directional double-side sound intake MIC component is provided, comprising a front shell having a pair of sound intake holes and a MIC device arranged on the inner side of the front shell, the MIC device having two receiving holes, the MIC component also comprising a fixing member assembled on the inner side of the front shell, the fixing member being provided with an assembly cavity and two sound intake channels connected to the assembly cavity, the MIC device being installed in the assembly cavity and the two receiving holes of the MIC device being respectively connected to the two sound intake channels, and the two sound intake channels being respectively connected to the two sound intake holes of the same pair.

[0006] Furthermore, the two sound inlet channels are respectively connected to two opposite sides of the assembly cavity.

[0007] Furthermore, the MIC assembly further includes a soft elastic member wrapped around the outside of the MIC device and embedded in the assembly cavity, and the soft elastic member is provided with a first clearance hole connecting the receiving hole and the corresponding sound inlet channel.

[0008] Furthermore, a sealing rib is provided on the outer side of the soft elastic member, surrounding the first clearance hole and abutting against the inner side wall of the assembly cavity.

[0009] Furthermore, the MIC assembly further includes an adhesive sheet clamped between the front shell and the fixing member, and the adhesive sheet is provided with a second clearance hole communicating with the sound inlet channel and the corresponding sound inlet hole.

[0010] Furthermore, the bonding sheet is made of a foamed porous material, and both sides of the bonding sheet have adhesive layers.

[0011] Furthermore, the fixing member protrudes from one side close to the front shell to form a limit platform, the inner side of the front shell is recessed to form a limit groove matching the limit platform, and the bonding sheet is provided with a limit hole for the limit platform to pass through.

[0012] Furthermore, at least two spaced apart mounting posts are provided on the inner side of the front shell, a mounting groove corresponding to the mounting posts is provided on one side of the fixing member, the mounting posts are embedded in the mounting grooves, and the fixing member and the mounting posts are fixed by screws.

[0013] Furthermore, the front shell is provided with two groups of paired sound inlet holes arranged perpendicularly to each other, the MIC assembly includes two MIC devices corresponding to the two groups of paired sound inlet holes, and the fixing part is provided with two assembly cavities for respectively installing the two MIC devices, and a sound inlet channel connecting the assembly cavities and the sound inlet holes in the corresponding groups.

[0014] Furthermore, an electronic device is provided, comprising the directional double-side sound-input MIC component as described in any one of the above items. Beneficial effects

[0015] The beneficial effects of this utility model are as follows: In this solution, by providing a separate fixing member that is assembled with the inner side of the front shell, and the MIC device being assembled in the assembly cavity within the fixing member, the two paired sound inlet holes on the front shell are connected to the receiving holes of the MIC device through two sound inlet channels within the fixing member, thereby ensuring performance. Since the front shell and the fixing member can be processed separately, the sound inlet holes on the front shell can be arranged in a more flexible manner without unacceptable sharp corners, which can meet the requirements of the appearance design. The external port of the sound inlet channel on the fixing member is not restricted by appearance and can be processed by various methods such as molds and CNC. In particular, molds can be used for mass production at low cost and high yield, and the mold design is simpler and more cost-effective. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] FIG1 is a schematic diagram of a partial structure of an electronic device of the present invention;

[0017] FIG2 is a second schematic diagram of a partial structure of an electronic device of the present invention;

[0018] FIG3 is a cross-sectional view of a portion of the structure of the electronic device of the present invention taken along the AA direction in FIG2 ;

[0019] FIG4 is a cross-sectional view of a portion of the structure of the electronic device of the present invention taken along the line BB in FIG2 ;

[0020] FIG5 is a schematic diagram of a three-dimensional exploded structure of a portion of the structure of the electronic device of the present invention shown in FIG2;

[0021] FIG6 is a schematic diagram of the three-dimensional structure of the front shell of the directional double-side sound-inlet MIC assembly of the present invention. Modes for Carrying Out the Invention

[0022] The present invention will be further described below with reference to the accompanying drawings and implementation examples.

[0023] In conjunction with Figure 1, an electronic device 10 is provided, including a directional double-side sound intake MIC component 100. In this solution, the electronic device 10 is AR (Augmented Reality) glasses. Of course, in some embodiments, the electronic device 10 can also be an AR helmet, VR (virtual reality) glasses, VR helmet, MR (mixed reality) glasses, MR helmet, etc., a mobile phone, a tablet computer, etc., which is not limited here.

[0024] 2-6 , the directional, dual-side sound-input MIC assembly 100 includes a front housing 1 having a pair of sound inlet holes 13 and a MIC device 2 disposed on the inner side of the front housing 1. The MIC device 2 has two receiving holes 21. The MIC assembly also includes a fixing member 3 mounted on the inner side of the front housing 1. The fixing member 3 is provided with an assembly cavity 31 and two sound inlet channels 32 connected to the assembly cavity 31. The MIC device 2 is mounted in the assembly cavity 31, and the two receiving holes 21 of the MIC device 2 are respectively connected to the two sound inlet channels 32. The two sound inlet channels 32 are respectively connected to the same pair of two sound inlet holes 13. The electronic device 10 also includes a rear housing 200 that cooperates with the front housing 1 to form a receiving cavity, and a circuit board 7 that is connected to the receiving cavity and is electrically connected to the MIC device 2 or other electronic components.

[0025] In this solution, a separate fixture 3 is provided to assemble with the inside of the front housing 1, and the MIC device 2 is assembled in the assembly cavity 31 within the fixture 3. The two paired sound inlet holes 13 on the front housing 1 are connected to the receiving hole 21 of the MIC device 2 via two sound inlet channels 32 within the fixture 3, thereby ensuring performance. The front housing 1 and fixture 3 can both be machined separately, allowing for greater flexibility in the design of the sound inlet holes 13 on the front housing 1, eliminating unacceptable sharp corners and meeting design requirements. The external port of the sound inlet channel 32 on the fixture 3 is not restricted by appearance and can be machined using various methods, such as molds and CNC. In particular, molds can be used for high-yield, low-cost, and high-volume production, and mold design is simpler and more cost-effective.

[0026] Furthermore, the two sound inlet channels 32 are respectively connected to opposite sides of the assembly cavity 31. Specifically, the two sound inlet channels 32 extend radially from the corresponding assembly cavity 31 toward the front housing 1, that is, the two sound inlet channels 32 are in an "eight" shape.

[0027] Furthermore, the MIC assembly also includes a soft elastic member 4 wrapped around the outside of the MIC device 2 and embedded in the assembly cavity 31. The soft elastic member 4 is provided with a first clearance hole 41 connecting the receiving hole 21 and the corresponding sound inlet channel 32. The outside of the soft elastic member 4 is provided with a sealing rib 42 surrounding the first clearance hole 41 and abutting against the inner wall of the assembly cavity 31. Specifically, in this embodiment, the soft elastic member 4 is made of silicone material, and the MIC device 2 is interference-fitted inside the soft elastic member 4. When the soft elastic member 4 wraps the MIC device 2 and is installed in the assembly cavity 31, the soft elastic member 4 and the inner wall of the assembly cavity 31 are interference-fitted. In this way, the MIC device 2 and the fixing member 3 can be installed stably. The sealing rib 42 provided on the periphery of the first clearance hole 41 abuts against the inner wall of the assembly cavity 31, thereby ensuring the sealing performance between the receiving hole 21 of the MIC device 2 and the sound inlet channel 32.

[0028] Furthermore, the MIC assembly includes an adhesive sheet 5 sandwiched between the front housing 1 and the fixing member 3. The adhesive sheet 5 defines a second clearance hole 51 that connects the sound inlet channel 32 and the corresponding sound inlet port 13. The adhesive sheet 5 is made of a foamed porous material, with adhesive layers on both sides. Preferably, the adhesive sheet 5 is made of foam to ensure a seal between the sound inlet channel 32 and the sound inlet port 13, thereby meeting the sealing requirements between the sound inlet port 13 and the receiving port 21.

[0029] Furthermore, the side of the fixing member 3 closest to the front housing 1 protrudes to form a stopper 33, the inner side of the front housing 1 is recessed to form a stopper groove 11 that matches the stopper 33, and the adhesive sheet 5 defines a stopper hole 52 for the stopper 33 to pass through. When the fixing member 3 is installed on the inner side of the front housing 1, the stopper 33 is embedded in the stopper groove 11, ensuring the precise assembly position between the fixing member 3 and the front housing 1.

[0030] Furthermore, at least two spaced-apart mounting posts 12 are provided on the inner side of the front housing 1, and mounting grooves 34 corresponding to the mounting posts 12 are provided on one side of the fixing member 3. The mounting posts 12 are embedded in the mounting grooves 34, and the fixing member 3 and the mounting posts 12 are fixed by screws 6. Specifically, four mounting posts 12 are provided on the inner side of the front housing 1, each having a threaded hole. Four mounting grooves 34 are correspondingly provided on one side of the fixing member 3. When the fixing member 3 is assembled, the mounting grooves 34 and the mounting posts 12 are engaged, and then the screws 6 are passed through the other side of the fixing member 3 and tightened into the mounting posts 12. In this way, the fixing member 3 can be accurately and stably fixed to the front housing 1.

[0031] Furthermore, in the present embodiment, the front shell 1 is provided with two groups of paired sound inlet holes 13 arranged in directions perpendicular to each other, the MIC assembly includes two MIC devices 2 corresponding to the two groups of paired sound inlet holes 13, and the fixing member 3 is provided with two assembly cavities 31 for respectively mounting the two MIC devices 2, and a sound inlet channel 32 connecting the assembly cavities 31 and the sound inlet holes 13 in the corresponding groups. Specifically, each pair of sound inlet holes 13 has two sound inlet holes 13, wherein the paired sound inlet holes 13 of one group are symmetrically connected to the line connecting the paired sound inlet holes 13 of the other group, and the four sound inlet holes 13 of the two groups of paired sound inlet holes 13 are arranged in a "Y" shape. It should be understood that in some embodiments, the paired sound inlet holes 13 can be provided in one group, two groups, three groups, etc., and the arrangement of the paired sound inlet holes 13 of each group can be adaptively adjusted according to actual needs.

[0032] The above is only an embodiment of the present invention. It should be pointed out that those skilled in the art can make improvements without departing from the inventive concept of the present invention, but these improvements are all within the scope of protection of the present invention.

Claims

1. A directional double-side sound inlet MIC component, comprising a front shell with a pair of sound inlet holes and a MIC device arranged on the inner side of the front shell, wherein the MIC device has two receiving holes, characterized in that: The MIC assembly also includes a fixing part assembled on the inner side of the front shell, the fixing part is provided with an assembly cavity and two sound inlet channels connected to the assembly cavity, the MIC device is installed in the assembly cavity and the two receiving holes of the MIC device are respectively connected to the two sound inlet channels, and the two sound inlet channels are respectively connected to the two sound inlet holes of the same pair.

2. The directional double-side sound inlet MIC component according to claim 1, characterized in that: The two sound inlet channels are respectively connected to two opposite sides of the assembly cavity.

3. The directional double-side sound-intake MIC component according to claim 1, characterized in that: The MIC assembly further includes a soft elastic member wrapped around the outside of the MIC device and embedded in the assembly cavity. The soft elastic member is provided with a first clearance hole connecting the receiving hole and the corresponding sound inlet channel.

4. The directional double-side sound inlet MIC assembly according to claim 3, characterized in that: The outer side of the soft elastic member is provided with a sealing rib surrounding the first clearance hole and abutting against the inner side wall of the assembly cavity.

5. The directional double-side sound-intake MIC component according to claim 1, characterized in that: The MIC assembly further comprises a bonding sheet clamped between the front shell and the fixing member, wherein the bonding sheet is provided with a second clearance hole communicating with the sound inlet channel and the corresponding sound inlet hole.

6. The directional double-side sound-intake MIC component according to claim 5, characterized in that: The bonding sheet is made of a foamed porous material, and both sides of the bonding sheet are provided with adhesive layers.

7. The directional double-side sound-intake MIC assembly according to claim 5, characterized in that: The fixing piece protrudes from one side close to the front shell to form a limiting platform, the inner side of the front shell is recessed to form a limiting groove matching the limiting platform, and the bonding sheet is provided with a limiting hole for the limiting platform to pass through.

8. The directional double-side sound-intake MIC component according to claim 1, characterized in that: At least two spaced mounting posts are provided on the inner side of the front shell, and mounting grooves corresponding to the mounting posts are provided on one side of the fixing member, the mounting posts are embedded in the mounting grooves, and the fixing member and the mounting posts are fixed by screws.

9. The directional double-side sound-intake MIC component according to any one of claims 1 to 8, characterized in that: The front shell is provided with two groups of paired sound inlet holes arranged in directions perpendicular to each other, the MIC assembly includes two MIC devices corresponding to the two groups of paired sound inlet holes, and the fixing member is provided with two assembly cavities for respectively installing the two MIC devices, and a sound inlet channel connecting the assembly cavity and the sound inlet holes in the corresponding group.

10. An electronic device, characterized in that: A directional double-side sound-inlet MIC component comprising the method described in any one of claims 1 to 9.

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