A microphone pickup channel for a Bluetooth headset

Abstract

This utility model relates to a sound pickup channel, specifically disclosing a microphone sound pickup channel for a Bluetooth headset. It includes a housing with a cavity formed within it. The sound pickup channel is located on the housing, with one end connected to the outside and the other end connected to the cavity. A microphone is located at the other end of the sound pickup channel. The cross-section of the sound pickup channel is bent. The bent sound pickup channel of this utility model can reduce wind noise interference; it can reduce ambient noise reflection; it can enhance active noise cancellation; and it can improve the durability of the microphone.

Description

Technical Field

[0001] This utility model relates to a sound receiving channel, and more particularly to a microphone sound receiving channel for a Bluetooth headset. Background Technology

[0002] Currently, the microphones of open-back Bluetooth headphones on the market are usually positioned directly facing the outer wall of the headphone. This type of microphone channel is directly facing the hole, and therefore, this type of microphone channel has at least the following three problems.

[0003] 1. Environmental noise interference: With the microphone directly facing the earpiece's outer hole, the microphone is easily affected by external environmental noise, such as wind noise and the voices of people around, resulting in loud background noise during calls and affecting call quality.

[0004] 2. Insufficient noise reduction capability: The direct-aperture microphone channel is not conducive to the full utilization of active noise reduction technology. Active noise reduction requires the microphone to accurately capture external noise and generate reverse sound waves to cancel it out. However, the direct-aperture design may make the sound received by the microphone less pure, thus reducing the noise reduction effect.

[0005] 3. Headphone structure limitations: The direct-facing microphone channel may be limited by the overall headphone structure, making it difficult to achieve the best balance between microphone position and headphone appearance design, resulting in the microphone's performance not being fully utilized. Utility Model Content

[0006] The purpose of this invention is to provide a microphone reception channel for Bluetooth headsets to solve the technical problems existing in current reception channels.

[0007] According to one aspect of the present invention, a microphone receiving channel for a Bluetooth headset is provided, including a housing, the housing having a cavity, a receiving channel on the housing, one end of the receiving channel being connected to the outside and the other end being connected to the cavity, and a microphone being provided at the other end of the receiving channel, the cross-section of the receiving channel being bent.

[0008] In some embodiments, the sound reception channel includes a horizontal channel and a vertical channel, which form a bend. One end of the horizontal channel is connected to the outside, and the other end of the horizontal channel is connected to one end of the vertical channel. A microphone is provided at the other end of the vertical channel.

[0009] In some implementations, the bend angle of the radio channel is 90°.

[0010] In some embodiments, the other end of the longitudinal channel is also provided with sealing cotton and a PCB board, with the sealing cotton located between the PCB board and the other end of the longitudinal channel.

[0011] In some implementations, the microphone is mounted on the PCB board.

[0012] In some implementations, the PCB board has through holes that are connected to the other end of the longitudinal channel, so that sound can be transmitted from the other end of the longitudinal channel to the through holes and the microphone.

[0013] In some implementations, there are two microphones and two sound channels.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The bent sound-receiving channel of this utility model can reduce wind noise interference:

[0016] The microphone's sound pickup channel is bent at 90°, which can effectively prevent external wind noise from directly impacting the microphone. When used outdoors, wind noise is one of the important factors affecting call quality. The bent channel can change the direction of wind flow, so that the wind noise is weakened or dispersed when it enters the sound pickup channel, reducing the interference of wind noise on sound pickup and improving call clarity.

[0017] 2. The bent sound-receiving channel of this invention can reduce environmental noise reflection:

[0018] The bent channel of this invention can change the sound propagation path, reduce the direct reflection and reverberation of environmental noise in the channel. The bent channel design can be regarded as a simple acoustic filter, which can filter out some non-target sounds, making the sound received by the microphone purer and improving the signal-to-noise ratio.

[0019] 3. The bent sound-receiving channel of this invention can enhance the active noise cancellation effect:

[0020] In active noise-canceling headphones, the microphone must accurately capture external noise and generate an inverse sound wave to cancel it out. The bent channel of this invention can reduce the direct interference of external noise, enabling the microphone to collect environmental noise more accurately and improve the effect of active noise cancellation.

[0021] 4. The bending channel of this invention can improve the durability of the microphone:

[0022] The bent channel design of this invention can provide a certain degree of physical protection for the microphone, reduce the possibility of external objects (such as fingers, hair, etc.) directly contacting the microphone, effectively reduce the risk of the microphone being blocked or damaged, and extend the service life of the microphone. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the microphone receiving channel of a Bluetooth headset according to one embodiment of the present invention.

[0024] Figure 2 for Figure 1 The diagram shows an exploded view of the microphone pickup channel of the Bluetooth headset.

[0025] Figure 3 for Figure 1 A top view of the microphone pickup channel of the Bluetooth headset shown.

[0026] Figure 4 for Figure 3 The diagram shows the structure of the microphone pickup channel of the Bluetooth headset in the AA direction.

[0027] In the diagram, 1-outer shell; 11-cavity; 12-receiving channel; 121-horizontal channel; 122-vertical channel; 2-microphone; 3-sealing cotton; 4-PCB board; 41-through hole. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] Figures 1-4 The diagram schematically illustrates the structure of the microphone reception channel of a Bluetooth headset according to one embodiment of the present invention.

[0031] like Figures 1-4 As shown, a microphone receiving channel for a Bluetooth headset includes a housing 1, on which a cavity 11 is formed. However, to allow for a clear view of the internal structure of the housing 1, only half of the housing 1 is shown (the upper half is missing). In reality, the housing 1 is a relatively closed structure.

[0032] Figure 1In the middle, a sound receiving channel 12 can be formed on the outer shell 1. One end of the sound receiving channel 12 is connected to the outside, and the other end is connected to the cavity 11. A microphone 2 can be installed at the other end of the sound receiving channel 12. The cross-section of the sound receiving channel 12 is bent. The sound can only reach the microphone 2 through the bent sound receiving channel 12, which can effectively prevent the external wind noise from directly impacting the microphone 2.

[0033] The specific structure of the radio channel 12 will be described in detail below. Figure 4 The structure of one of the sound channels 12 can be clearly seen in the image, as shown below. Figure 4 As shown, the sound receiving channel 12 includes a horizontal channel 121 and a vertical channel 122, which form a bend. The right end of the horizontal channel 121 connects to the outside, and the left end of the horizontal channel 121 connects to the lower end of the vertical channel 122. A microphone 2 is installed at the upper end of the vertical channel 122. In this embodiment, the horizontal channel 121 and the vertical channel 122 are integrally formed. External sound can reach the vertical channel 122 via the horizontal channel 121, and then reach the microphone 2 via the vertical channel 122. Therefore, the sound is bent and filtered, and does not directly reach the microphone 2.

[0034] Specifically, in this embodiment, the bending angle of the microphone channel 12 is 90°. In other embodiments, the bending angle of the microphone channel 12 can vary within the range of 60° to 120°, where the bending angle refers to the angle between the horizontal channel 121 and the vertical channel 122.

[0035] Figure 4 In this embodiment, a sealing cotton 3 and a PCB board 4 can be provided at the upper end of the longitudinal channel 122. The sealing cotton 3 can be installed between the PCB board 4 and the other end of the longitudinal channel 122. Therefore, a sound channel can be reserved in the middle of the sealing cotton 3. External sound reaches the sealing cotton 3 through the sound receiving channel 12, and then reaches the through hole 41 of the PCB board 4 through the sound channel of the sealing cotton 3, and finally reaches the microphone 2. In this embodiment, the sealing cotton 3 can isolate the sound, prevent external sound from entering the cavity from the sound receiving channel 12, and prevent sound loss.

[0036] In this embodiment, as Figures 2-4 As can be seen, microphone 2 can be fixedly mounted on PCB board 4. PCB board 4 can provide circuit connections for microphone 2, ensuring the normal function and stability of microphone 2.

[0037] In this embodiment, as Figure 2 As shown, a through hole 41 is integrally formed on the PCB board 4. The through hole 41 is connected to the other end of the longitudinal channel 122 so that the sound can be transmitted from the other end of the longitudinal channel 122 to the through hole 41 and the microphone 2.

[0038] In this embodiment, there are two microphones 2 and two sound receiving channels 12. One of the sound receiving channels 12 has the following structure: Figure 4 As shown, that is, the corresponding Figure 2 The right-center microphone channel 12, and another microphone channel 12 located at... Figure 2 On the left end, the two sound channels 12 can have the same structure. Of course, in other embodiments, there can be one microphone 2 and one sound channel 12. The number of microphones 2 and sound channels 12 can be set according to actual needs.

[0039] The following is a detailed description of the overall effect of the sound receiving channel of this utility model:

[0040] 1. The bent sound-receiving channel of this utility model can reduce wind noise interference:

[0041] After the microphone 2's sound pickup channel 12 is bent at 90°, it can effectively prevent external wind noise from directly impacting the microphone 2. When used outdoors, wind noise is one of the important factors affecting call quality. The bent channel can change the direction of wind flow, so that the wind noise is weakened or dispersed when it enters the channel, reducing the interference of wind noise on sound pickup and improving call clarity.

[0042] 2. The bent sound-receiving channel of this invention can reduce environmental noise reflection:

[0043] The bent channel can change the sound propagation path, reduce the direct reflection and reverberation of environmental noise in the channel. The bent channel design is similar to a simple acoustic filter, which can filter out some non-target sounds, making the sound received by microphone 2 purer and improving the signal-to-noise ratio.

[0044] 3. The bent sound-receiving channel of this invention can enhance the active noise cancellation effect:

[0045] In active noise-canceling headphones, microphone 2 needs to accurately capture external noise and generate reverse sound waves to cancel it out. The bent channel can reduce the direct interference of external noise, enabling microphone 2 to collect environmental noise more accurately and improve the effect of active noise cancellation.

[0046] 4. The durability of microphone 2 can be improved by the bent channel of this utility model:

[0047] The bent channel design provides some physical protection for microphone 2, reducing the possibility of external objects such as fingers and hair directly contacting microphone 2, effectively reducing the risk of microphone 2 being blocked or damaged, and extending the service life of microphone 2.

[0048] This utility model is not limited to the above-mentioned optional embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in its shape or structure, any technical solution that falls within the scope of the claims of this utility model shall be protected by this utility model.

Claims

1. A microphone pickup channel for a Bluetooth headset, characterized in that: Includes an outer shell (1), the outer shell (1) forming a cavity (11), the outer shell (1) is provided with a sound receiving channel (12), one end of the sound receiving channel (12) is connected to the outside, the other end is connected to the cavity (11), and a microphone (2) is provided at the other end of the sound receiving channel (12), the cross-section of the sound receiving channel (12) is bent.

2. The microphone reception channel of the Bluetooth headset according to claim 1, characterized in that: The sound receiving channel (12) includes a horizontal channel (121) and a vertical channel (122), which form a bend. One end of the horizontal channel (121) is connected to the outside, and the other end of the horizontal channel (121) is connected to one end of the vertical channel (122). The other end of the vertical channel (122) is provided with a microphone (2).

3. The microphone reception channel of the Bluetooth headset according to claim 2, characterized in that: The bending angle of the radio channel (12) is 90°.

4. The microphone reception channel of the Bluetooth headset according to claim 3, characterized in that: The other end of the longitudinal channel (122) is also provided with sealing cotton (3) and PCB board (4), and the sealing cotton (3) is located between the PCB board (4) and the other end of the longitudinal channel (122).

5. The microphone reception channel of the Bluetooth headset according to claim 4, characterized in that: The microphone (2) is mounted on the PCB board (4).

6. The microphone reception channel of the Bluetooth headset according to claim 5, characterized in that: The PCB board (4) is provided with a through hole (41), which is connected to the other end of the longitudinal channel (122) so that sound can be transmitted from the other end of the longitudinal channel (122) to the through hole (41) and the microphone (2).

7. The microphone reception channel of the Bluetooth headset according to any one of claims 1 to 6, characterized in that: There are two microphones (2) and two sound channels (12).

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