A wind noise protection structure for microphone of smart watch

Abstract

The utility model discloses a wind noise proof structure for a microphone of a smart watch, comprising a watch case, a PCBA circuit board, a mesh assembly and a MIC microphone, wherein the watch case is provided with a main sound inlet hole, a first sub-sound inlet through hole and a second sub-sound inlet through hole, wherein the main sound inlet hole is respectively connected with the first sub-sound inlet through hole and the second sub-sound inlet through hole, and the first sub-sound inlet through hole and the second sub-sound inlet through hole are mutually connected and mutually convective; the PCBA circuit board is mounted on the watch case, the PCBA circuit board is provided with a circuit board sound inlet hole, the circuit board sound inlet hole is connected with the main sound inlet hole, the mesh assembly is mounted between the circuit board sound inlet hole and the main sound inlet hole; the MIC microphone is mounted on the PCBA circuit board, the MIC microphone is provided with a microphone sound pickup hole, and the microphone sound pickup hole is connected with the circuit board sound inlet hole. The utility model can timely guide the airflow and prevent the microphone from generating wind noise.

Description

Technical Field

[0001] The utility model relates to the technical field of smart watches, and in particular to a wind noise protection structure for a microphone of a smart watch. Background Art

[0002] For smart watches currently on the market, call wind noise has always been a technical bottleneck that the industry urgently needs to improve and break through. In the prior art, the case of a smart watch is usually provided with a sound inlet through-hole, and the MIC microphone is installed inside the smart watch. The sound pickup hole of the MIC microphone is connected to the sound inlet through-hole, and the sound from the outside world can reach the sound pickup hole of the MIC microphone through the sound inlet through-hole. The main technical problem with this type of sound inlet through-hole is that after the external airflow enters the sound inlet through-hole, it is difficult for the sound inlet through-hole to flow out, thus forming microphone wind noise. And because the smart watch is worn on the user's hand, it often moves quickly with the human hand. Therefore, the airflow around the smart watch is more obvious, and the wind noise problem of the microphone is more prominent. Therefore, how to solve the wind noise problem of smart watches has become a technical problem that technicians in this field urgently need to solve. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a microphone wind noise prevention structure for a smart watch in view of the deficiencies of the above-mentioned prior art. The microphone wind noise prevention structure has a first sub-sound inlet through hole and a second sub-sound inlet through hole. The first sub-sound inlet through hole and the second sub-sound inlet through hole are interconnected and convective with each other. External airflow can flow in from the first sub-sound inlet through hole and then flow out from the second sub-sound inlet through hole, or flow in from the second sub-sound inlet through hole and then flow out from the first sub-sound inlet through hole, thereby allowing the airflow to be guided out in time to prevent the microphone from generating wind noise.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a microphone wind noise protection structure of a smart watch, comprising a watch case, a PCBA circuit board, a mesh assembly and a MIC microphone, the watch case is provided with a main sound inlet hole, a first sub-sound inlet through hole and a second sub-sound inlet through hole, the main sound inlet hole is respectively connected with the first sub-sound inlet through hole and the second sub-sound inlet through hole, the first sub-sound inlet through hole and the second sub-sound inlet through hole are interconnected and convective with each other; the PCBA circuit board is installed on the watch case, the PCBA circuit board is provided with a circuit board sound inlet hole, the circuit board sound inlet hole is connected with the main sound inlet hole, the mesh assembly is installed between the circuit board sound inlet hole and the main sound inlet hole; the MIC microphone is installed on the PCBA circuit board, the MIC microphone is provided with a microphone sound pickup hole, and the microphone sound pickup hole is connected with the circuit board sound inlet hole.

[0005] Preferably, the first sub-sound inlet through hole and the second sub-sound inlet through hole are respectively long straight holes, and the center line of the first sub-sound inlet through hole and the center line of the second sub-sound inlet through hole are on the same straight line.

[0006] Preferably, a mesh assembly positioning groove is provided on the watch case, and the mesh assembly is installed in the mesh assembly positioning groove. The mesh assembly includes a back glue layer, a waterproof and breathable mesh layer and a foam layer. The back glue layer is attached to the bottom of the mesh assembly positioning groove, the waterproof and breathable mesh layer is attached to the back glue layer, and the foam layer is attached to the waterproof and breathable mesh layer. The foam layer has an interference fit with the lower side of the PCBA circuit board, and the back glue layer and the foam layer are respectively provided with sound holes.

[0007] Preferably, the microphone wind noise protection structure of the smart watch also includes a plurality of screws, the PCBA circuit board is provided with a plurality of fixing holes, the watch case is provided with a plurality of screw holes corresponding to the fixing holes, the screws pass through the fixing holes and are screwed into the screw holes, so that the PCBA circuit board is locked and fixed on the watch case.

[0008] Preferably, the watch case has four rounded corners, the microphone wind noise protection structure is located at one of the rounded corners of the watch case, the outer end of the first sub-sound inlet through hole leads to one side of the rounded corner, and the outer end of the second sub-sound inlet through hole leads to the other side of the rounded corner.

[0009] The beneficial effects of the utility model are as follows: since the watch case of the utility model is provided with a main sound inlet hole, a first sub-sound inlet through hole and a second sub-sound inlet through hole, the main sound inlet hole is respectively connected with the first sub-sound inlet through hole and the second sub-sound inlet through hole, the first sub-sound inlet through hole and the second sub-sound inlet through hole are mutually connected and convective with each other, the PCBA circuit board is installed on the watch case, the circuit board sound inlet hole of the PCBA circuit board is connected with the main sound inlet hole, the MIC microphone is installed on the PCBA circuit board, and the microphone sound pickup hole of the MIC microphone is connected with the circuit board sound inlet hole. Therefore, on the one hand, sound can normally enter the microphone sound pickup hole of the MIC microphone from the first sub-sound inlet through hole, the second sub-sound inlet through hole, the main sound inlet hole and the circuit board sound inlet hole; on the other hand, external airflow can flow in from the first sub-sound inlet through hole and then flow out from the second sub-sound inlet through hole, or flow in from the second sub-sound inlet through hole and then flow out from the first sub-sound inlet through hole, so that the airflow is timely discharged to prevent the microphone from generating wind noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the top structure of the utility model.

[0011] Figure 2 For along Figure 1 Section view along line AA.

[0012] Figure 3 For along Figure 1 Sectional view along line BB.

[0013] Figure 4 It is a schematic diagram of the dispersed structure of the utility model.

[0014] Figure 5 This is a schematic diagram of airflow passing through the first sub-sound inlet through hole and the second sub-sound inlet through hole.

[0015] Figure 6 The second schematic diagram is a diagram of airflow passing through the first sub-sound inlet through hole and the second sub-sound inlet through hole.

[0016] Figure 7 It is an overall structural diagram of a preferred embodiment of the utility model.

[0017] Figure 8 It is a cross-sectional structural diagram of a preferred embodiment of the utility model. DETAILED DESCRIPTION

[0018] The structural principle and working principle of the utility model are further described in detail below with reference to the accompanying drawings.

[0019] like Figure 1-Figure 4 As shown, the utility model is a microphone wind noise protection structure of a smart watch, comprising a watch case 1, a PCBA circuit board 2, a mesh assembly 3 and a MIC microphone 4, the watch case 1 is provided with a main sound inlet hole 11, a first sub-sound inlet through hole 12 and a second sub-sound inlet through hole 13, the main sound inlet hole 11 is respectively connected with the first sub-sound inlet through hole 12 and the second sub-sound inlet through hole 13, the first sub-sound inlet through hole 12 and the second sub-sound inlet through hole 13 are interconnected and convective with each other; the PCBA circuit board 2 is installed on the watch case 1, the PCBA circuit board 2 is provided with a circuit board sound inlet hole 21, the circuit board sound inlet hole 21 is connected with the main sound inlet hole 11, the mesh assembly 3 is installed between the circuit board sound inlet hole 21 and the main sound inlet hole 11; the MIC microphone 4 is installed on the PCBA circuit board 2, the MIC microphone 4 is provided with a microphone sound pickup hole 41, and the microphone sound pickup hole 41 is connected with the circuit board sound inlet hole 21. When the utility model is working, the sound can normally enter the microphone pickup hole 41 of the MIC microphone 4 from the first sub-sound inlet through hole 12, the second sub-sound inlet through hole 13, the main sound inlet hole 11, and the circuit board sound inlet hole 21; on the other hand, if Figure 5 and Figure 6 As shown, the external air flow can flow in from the first sub-sound inlet hole 12 and then flow out from the second sub-sound inlet hole 13, or flow in from the second sub-sound inlet hole 13 and then flow out from the first sub-sound inlet hole 12, so that the air flow can be guided out in time to prevent the microphone from generating wind noise.

[0020] like Figure 3 , Figure 5 and Figure 6As shown, the first sub-sound inlet through hole 12 and the second sub-sound inlet through hole 13 are respectively long straight holes, and the center line of the first sub-sound inlet through hole 12 and the center line of the second sub-sound inlet through hole 13 are on the same straight line. In this way, the airflow can pass through the first sub-sound inlet through hole 12 and the second sub-sound inlet through hole 13 more easily.

[0021] like Figure 2-Figure 6 As shown, the case 1 is provided with a mesh assembly positioning groove 14, the mesh assembly 3 is installed in the mesh assembly positioning groove 14, the mesh assembly 3 includes a back glue layer 31, a waterproof and breathable mesh layer 32 and a foam layer 33, the back glue layer 31 is attached to the bottom of the mesh assembly positioning groove 14, the waterproof and breathable mesh layer 32 is attached to the back glue layer 31, the foam layer 33 is attached to the waterproof and breathable mesh layer 32, the foam layer 33 is interference fit with the lower side of the PCBA circuit board 2, and the middle of the back glue layer 31 and the foam layer 33 are respectively provided with sound holes 34. The foam layer 33 and the PCBA circuit board or the case adopt an interference design, which can play an interference sealing role, and the waterproof and breathable mesh layer 32 can play a waterproof and breathable role.

[0022] like Figure 1 , Figure 2 and Figure 4 As shown, the microphone wind noise protection structure of the smart watch also includes a plurality of screws 5, the PCBA circuit board 2 is provided with a plurality of fixing holes 22, the watch case 1 is provided with a plurality of screw holes 15 corresponding to the fixing holes 22, the screws 5 pass through the fixing holes 22 and are screwed into the screw holes 15, so that the PCBA circuit board 2 is locked and fixed on the watch case 1. The fixing method of the PCBA circuit board 2 and the watch case 1 can be replaced by other fixing methods, such as a snap-fit ​​fixing method.

[0023] like Figure 7 and Figure 8 The figure shows a preferred embodiment structure of the utility model. As shown in the figure, the watch case 1 has four rounded corners, the microphone wind noise protection structure is located at one of the rounded corners of the watch case 1, the outer end of the first sub-sound inlet through hole 12 leads to one side of the rounded corner, and the outer end of the second sub-sound inlet through hole 13 leads to the other side of the rounded corner.

[0024] The above is only a preferred embodiment of the present invention. Any slight modification, equivalent changes and modifications made to the above embodiments according to the technical solution of the present invention are within the scope of the technical solution of the present invention.

Claims

1. A wind noise protection structure for a microphone of a smart watch, characterized in that: The invention comprises a watch case (1), a PCBA circuit board (2), a mesh component (3) and a MIC microphone (4), wherein the watch case (1) is provided with a main sound inlet hole (11), a first sub-sound inlet through hole (12) and a second sub-sound inlet through hole (13), wherein the main sound inlet hole (11) is connected to the first sub-sound inlet through hole (12) and the second sub-sound inlet through hole (13), respectively, and the first sub-sound inlet through hole (12) and the second sub-sound inlet through hole (13) are connected to each other and convective with each other; the PCBA circuit board (2 ) is mounted on the watch case (1); the PCBA circuit board (2) is provided with a circuit board sound inlet hole (21), the circuit board sound inlet hole (21) is connected to the main sound inlet hole (11); the mesh cloth component (3) is mounted between the circuit board sound inlet hole (21) and the main sound inlet hole (11); the MIC microphone (4) is mounted on the PCBA circuit board (2), the MIC microphone (4) is provided with a microphone sound pickup hole (41), and the microphone sound pickup hole (41) is connected to the circuit board sound inlet hole (21).

2. The microphone wind noise protection structure of the smart watch according to claim 1, characterized in that: The first sub-sound inlet through hole (12) and the second sub-sound inlet through hole (13) are respectively long straight holes, and the center line of the first sub-sound inlet through hole (12) and the center line of the second sub-sound inlet through hole (13) are on the same straight line.

3. The microphone wind noise protection structure of the smart watch according to claim 1, characterized in that: A mesh assembly positioning groove (14) is provided on the watch case (1), and the mesh assembly (3) is installed in the mesh assembly positioning groove (14). The mesh assembly (3) comprises a back glue layer (31), a waterproof and breathable mesh layer (32) and a foam layer (33). The back glue layer (31) is attached to the bottom of the mesh assembly positioning groove (14), the waterproof and breathable mesh layer (32) is attached to the back glue layer (31), and the foam layer (33) is attached to the waterproof and breathable mesh layer (32). The foam layer (33) is interference fit with the lower side of the PCBA circuit board (2), and the back glue layer (31) and the foam layer (33) are respectively provided with sound holes (34).

4. The microphone wind noise protection structure of the smart watch according to claim 1, characterized in that: The PCBA circuit board (2) is provided with a plurality of fixing holes (22), the watch case (1) is provided with a plurality of screw holes (15) corresponding to the fixing holes (22), and the screws (5) pass through the fixing holes (22) and are screwed into the screw holes (15), so that the PCBA circuit board (2) is locked and fixed on the watch case (1).

5. The microphone wind noise protection structure of a smart watch according to any one of claims 1 to 4, characterized in that: The watch case (1) has four rounded corners, the microphone wind noise protection structure is located at one of the rounded corners of the watch case (1), the outer end of the first sub-sound inlet through hole (12) leads to one side of the rounded corner, and the outer end of the second sub-sound inlet through hole (13) leads to the other side of the rounded corner.

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