An earphone with wind noise prevention function
By introducing air guides and air duct structures into the ear clip-on headphones, the impact of wind noise on microphone pickup is resolved, improving the headphone's sound pickup quality in windy environments and achieving higher call quality and voice recognition accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN GINTO E COMMERCE CO LTD
- Filing Date
- 2024-11-09
- Publication Date
- 2026-04-28
AI Technical Summary
Existing clip-on headphones suffer from wind noise that severely impacts microphone pickup in outdoor or windy environments, reducing call quality and voice recognition accuracy.
An ear clip-on headphone with an air guide and an air channel was designed. By setting the air guide and air channel in the microphone chamber, and using the arc-shaped channel and guide hole structure, the wind speed is reduced and the airflow direction is adjusted, thereby reducing wind noise interference to the microphone.
It effectively reduces the impact of wind noise on the microphone, improves the microphone's sound pickup quality in high wind speed environments, and ensures call quality and voice recognition accuracy.
Smart Images

Figure CN119584006B_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of headphones, and in particular to an ear clip-on headphone with wind noise reduction function. Background Technology
[0002] With the widespread adoption of wireless communication and wearable devices, clip-on headphones have become a popular product in the market due to their lightweight and aesthetically pleasing design, comfortable fit, and health and safety features.
[0003] Common clip-on headphones typically consist of two housings and a flexible connector that links the two housings. One housing houses the microphone structure and is usually located behind the ear when worn, while the other housing houses the speaker structure and is usually located on the front of the ear near the ear canal when worn.
[0004] Because the microphone structure is located on the back of the ear and receives sound through a sound-receiving hole in the corresponding housing shell, existing clip-on headphones suffer from wind noise when used outdoors or in windy environments, which severely affects the microphone's sound pickup performance, reduces call quality and voice recognition accuracy, and needs improvement. Summary of the Invention
[0005] In order to improve the microphone pickup effect of the ear clip-on headphones and reduce the impact of wind noise, this application provides an ear clip-on headphone with wind noise reduction function.
[0006] This application provides an ear clip-on headphone with wind noise reduction function, using the following technical solution:
[0007] An ear-clip headphone with wind noise reduction function includes a first housing, a second housing, and a connector for connecting the first housing and the second housing. The first housing further includes:
[0008] A housing having a first internal cavity formed therein;
[0009] A circuit board is installed in the first inner cavity and has a microphone on its surface, with a pickup hole on the microphone.
[0010] A battery that powers the microphone and circuit board;
[0011] An air guide is installed in the first inner cavity and has an air guide channel. Both ends of the air guide channel pass through the air guide. The housing has a sound-absorbing hole that communicates with the end of the air guide channel. The air guide channel has a guide hole that is directly opposite the sound pickup hole.
[0012] By adopting the above technical solution, when in use, the sound around the auricle can enter the first chamber through the sound absorption hole and be converted into an electrical signal by the microphone to achieve sound acquisition. The converted electrical signal or the electrical signal transmitted for communication can be converted into a sound signal by the speaker set in the second chamber and released to realize the basic sound transmission function of the headphones.
[0013] When acquiring ambient sound, the sound needs to follow the airflow into the first chamber. In outdoor or windy environments, wind noise is easily generated. However, in the headphones of this application, when the sound follows the air from the sound-absorbing hole into the air-guiding channel, the wind speed is reduced by the inner wall of the air-guiding channel and the inner wall of the guide hole, and the direction of sound and airflow movement is adjusted, thereby reducing the interference of wind speed on the sound.
[0014] Optionally, the air guide channel has an arc-shaped opening path, and the two ends are parallel to each other. There are two sound-absorbing holes, which are opposite to the ends of the air guide channel. The two sound-absorbing holes are located on both sides of the connector.
[0015] By adopting the above technical solution, the inner wall of the arc-shaped air guide channel can reduce the wind speed and reduce the impact of wind noise when the gas flows. The ends of the air guide channel are parallel and located on both sides of the connector, which makes it easy to set the two sound-absorbing holes on the same side of the first chamber, which is convenient for production and can pick up the surrounding sound more evenly.
[0016] Optionally, the air guide includes a top wall away from the circuit board, the air guide channel is opened on the top wall, and the inner wall of the air guide channel away from the top wall is the bottom wall;
[0017] The bottom wall includes an installation platform located in the middle of the air guide channel, a first lifting surface located at both ends of the installation platform, and a second lifting surface located on the side of the first lifting surface away from the installation platform.
[0018] From the end of the air guide channel to the mounting platform, the distance from the bottom wall to the circuit board gradually increases, or increases intermittently through the first lifting surface and the second lifting surface, and the guide hole is opened on the mounting platform.
[0019] By adopting the above technical solution, the guide hole is opened towards the circuit board, which is opposite to the direction of the first lifting surface and the second lifting surface in raising the bottom wall. When the airflow enters the air guide channel, the wind speed is further reduced by the first lifting surface and the second lifting surface, and the airflow gradually moves away from the pickup hole. When the airflow moves to the top of the mounting platform and turns towards the pickup hole, the airflow speed can also be further reduced.
[0020] Optionally, the top wall is inclined, and the distance to the circuit board gradually increases in the direction away from the inner wall of the housing where the sound-absorbing hole is located.
[0021] By adopting the above technical solution, the bottom wall can gradually move away from the circuit board in the direction away from the sound absorption hole, which provides structural design space and makes the depth of the air guide channel less likely to narrow due to the change of the bottom wall.
[0022] Optionally, the air guide has a mounting groove for accommodating a microphone at one end away from the top wall, and one end of the guide hole is connected to the mounting groove.
[0023] By adopting the above technical solution, due to the structure of the air guide channel and the air guide component, the distance between the mounting platform and the circuit board is relatively far, and the thickness of the air guide component in this part is relatively thick, which can be used to open a mounting slot to accommodate the microphone, thereby realizing further utilization of the air guide component structure, and reducing the space occupied by the first inner cavity, the volume of the first chamber can be further reduced, and the structure can be more compact.
[0024] Optionally, it also includes a positioning structure, the positioning structure including a first positioning post disposed at the end of the air guide away from the top wall, and a first positioning groove for the first positioning post to be inserted into the circuit board;
[0025] The top wall is provided with a second positioning groove that communicates with the air guide channel, and the positioning structure includes a second positioning post disposed on the inner wall of the housing for insertion into the second positioning groove;
[0026] A third positioning groove is provided on the top wall, one end of which is connected to the mounting groove. The positioning structure includes a third positioning post disposed on the inner wall of the housing for insertion into the third positioning groove.
[0027] By adopting the above technical solution, the positioning structure facilitates the installation of the air guide and the internal structure of the first chamber; the first positioning post and the first positioning slot opened on the circuit board cooperate to enable the microphone and the air guide to be accurately positioned; the second positioning post is set in the air guide channel, which can also guide the airflow direction and reduce the flow rate.
[0028] Optionally, the inner wall of the housing is provided with a protrusion for being accommodated in the end of the air guide channel, and the sound-absorbing hole passes through the protrusion.
[0029] By adopting the above technical solution, during installation, the protrusion is accommodated at the end of the air guide channel, which serves as a positioning function and facilitates the direct entry of sound and airflow from the sound absorption hole into the air guide channel.
[0030] Optionally, the microphone is provided with a sound filter membrane inside the pickup hole;
[0031] A sealing gasket is provided on the mounting platform, and a filter membrane is provided in the center of the sealing gasket, facing the guide hole.
[0032] By adopting the above technical solution, a sound filtering structure is added to the microphone to enhance the microphone's filtering effect and further reduce wind noise; while a sealing gasket is placed on the mounting platform to buffer the airflow, and the filter membrane in the middle of the sealing gasket can reduce the wind speed in the air guide channel and reduce the amount of dust entering the microphone.
[0033] Optionally, an adjusting member for blocking the sound-absorbing hole opening is slidably disposed on the outer wall of the housing. The air guide can slide inside the housing in the direction of approaching and moving away from the circuit board. When the adjusting member moves to reduce the area of the sound-absorbing hole being blocked, the housing can move in the direction of approaching the circuit board.
[0034] By adopting the above technical solution, different requirements are placed on the sound pickup effect in different usage environments. At this time, the adjustment component can be moved to increase or decrease the area of the sound-absorbing hole used to acquire sound. Since the air guide component can also be moved accordingly to adjust the depth of the air guide channel and the air flow rate per unit time, the sound pickup effect of the first chamber can be adjusted.
[0035] The outer wall of the housing has an elongated hole that connects to the sound-absorbing holes, and the adjusting component includes a connecting strip that slides within the elongated hole;
[0036] The air guide component slides within the first inner cavity via the positioning structure;
[0037] The outer wall of the air guide is provided with a guide groove that is inclined relative to the length direction of the long hole, and the end of the connecting strip slides in the guide groove.
[0038] By adopting the above technical solution, the air guide component achieves directional movement through the positioning structure, and the adjusting component also achieves directional movement through the elongated hole. When the adjusting component moves, it can push the inner wall of the guide groove, thereby driving the air guide component to move and achieving the effect of synchronous adjustment.
[0039] In summary, this application includes at least one of the following beneficial effects:
[0040] 1. By setting up the air guide and designing its internal air guide channel, the possibility of wind noise directly entering the pickup hole can be effectively reduced, thereby improving the microphone's pickup quality in high wind speed environments;
[0041] 2. The design of the air guide channel with an arc-shaped path and parallel orientation at both ends effectively disperses wind noise as it passes through the air guide, reducing the impact of wind noise on the pickup hole.
[0042] 3. The special design of the mounting platform, the first lifting surface, the second lifting surface, and the top wall further optimizes the propagation path of wind noise within the air guide and enhances the reduction effect on wind noise;
[0043] 4. The position of the adjusting and air guiding components can be adjusted to achieve the unit airflow volume in the air guiding channel, which can adjust the sound pickup effect when different usage requirements are met. Attached Figure Description
[0044] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application;
[0045] Figure 2 This is an exploded structural diagram illustrating the internal structure of the first compartment, as shown in Embodiment 1 of this application;
[0046] Figure 3 This is a schematic diagram of the overall structure of the air guide component shown in Embodiment 1 of this application;
[0047] Figure 4 This is a partial schematic diagram illustrating part of the shell structure in Embodiment 1 of this application;
[0048] Figure 5 This is a schematic diagram illustrating the structure of the air guide near the circuit board in Embodiment 1 of this application;
[0049] Figure 6 This is a partial exploded view of the external structure of the first compartment shown in Embodiment 2 of this application;
[0050] Figure 7 This is a schematic diagram of the overall structure of the air guide component in Embodiment 2 of this application.
[0051] Explanation of reference numerals in the attached drawings: 1. First compartment; 11. First inner cavity; 12. Circuit board; 121. Microphone; 1211. Sound pickup hole; 122. First positioning groove; 123. Protective cover; 13. Battery; 14. Air guide; 141. Second positioning groove; 142. Third positioning groove; 143. Air guide channel; 144. Bottom wall; 1441. First lifting surface; 1442. Second lifting surface; 1443. Anchor. 1444. Mounting surface; 145. Guide hole; 146. Top wall; 147. Sealing gasket; 148. Filter membrane; 149. Guide groove; 140. Mounting groove; 151. First positioning post; 152. Housing; 153. Second positioning post; 154. Third positioning post; 155. Protrusion; 156. Sound absorption hole; 157. Adjusting component; 158. Connecting strip; 159. Elongated hole; 2. Second compartment; 3. Connecting component. Detailed Implementation
[0052] The following is in conjunction with the appendix Figures 1 to 7 This application will be described in further detail.
[0053] Example 1
[0054] This application discloses an ear clip-on headphone with wind noise reduction function, see the embodiment of which... Figure 1 and Figure 2 The clip-on earphone includes a first housing 1 and a second housing 2, and a connector 3 connecting the first housing 1 and the second housing 2. The connector 3 is flexible to facilitate wearing by the user. A wire passes through the middle of the connector 3 to realize the communication connection between the internal components of the first housing 1 and the second housing 2. The first housing 1 is used to house the microphone 121 and is usually located behind the ear when worn. The second housing 2 is used to house the speaker and is usually located on the front of the ear near the ear canal when worn. Since the improvement is located in the first housing 1, the structure of the connector 3 and the second housing 2 will not be described in detail in this application.
[0055] Reference Figure 2 and Figure 3 The first compartment 1 includes a housing 15, a first inner cavity 11 enclosed by the housing 15, and a circuit board 12, a battery 13, and a ventilation guide 14 disposed within the first inner cavity 11. The housing 15 consists of a detachable upper housing and a lower housing, which can be fixed together by snap-fit. The battery 13 powers the circuit board 12 and supplies power to the structure within the second compartment 2 via wiring in the connector 3. The circuit board 12 is equipped with a Bluetooth transceiver module, enabling communication with terminal devices. The housing 15 also has multiple buttons, such as a toggle button and a volume control, which operate on components on the circuit board 12 to adjust the headphone function. This part is a standard structure for electronic products and will not be described further.
[0056] A microphone 121 is mounted on the circuit board 12. A pickup hole 1211 is formed on the surface of the microphone 121 away from the circuit board 12. When sound is picked up through the pickup hole 1211, the sound signal is converted into an electrical signal and transmitted through the circuit board 12 and the wiring within the connector 3. A sound filter membrane is installed inside the pickup hole 1211 of the microphone 121 to filter out noise and wind noise entering the pickup hole 1211, improving the sound pickup effect. A protective cover 123 is mounted on the circuit board 12 to cover the microphone 121, serving to protect the microphone 121. The protective cover 123 has through holes corresponding to the pickup hole 1211.
[0057] Reference Figure 2 and Figure 4 The upper housing 15 has two sound-absorbing holes 154 at one end of the connecting member 3, and the sound-absorbing holes 154 are symmetrically arranged on both sides of the end of the connecting member 3. The first inner cavity 11 can be connected to the outside of the first chamber 1 through the sound-absorbing holes 154, so that the sound from the auricle can enter the first chamber 1 and be received by the microphone 121.
[0058] Reference Figure 3The air guide 14 is located between the upper housing 15 and the circuit board 12, and has a mirror-like structure. The air guide 14 includes a top wall 145 away from the circuit board 12, and an air guide channel 143 is formed on the top wall 145. The air guide channel 143 is arc-shaped, and its two ends are parallel and face a sound absorption hole 154 respectively. The airflow and sound entering through the sound absorption hole 154 can enter the air guide channel 143. The inner wall of the air guide channel 143 has a guide hole 1444 facing the sound pickup hole 1211, so that the sound guided by the air guide channel 143 can enter the sound pickup hole 1211 through the guide hole 1444.
[0059] Reference Figure 2 and Figure 3 The first compartment 1 is provided with a positioning structure, which includes two first positioning posts 149 fixed on the surface of the air guide 14 away from the top wall 145. The circuit board 12 is provided with a first positioning groove 122 for the first positioning posts 149 to be inserted into. The first positioning posts 149 and the first positioning groove 122 cooperate to realize the positioning of the air guide 14 and the circuit board 12.
[0060] Reference Figure 3 and Figure 4 The positioning structure also includes a third positioning groove 142 formed on the top wall 145 and located on the mirror surface of the air guide 14. A third positioning post 152 for insertion into the third positioning groove 142 is fixed on the inner wall of the housing 15. Two second positioning grooves 141 penetrating the top wall 145 are also formed on the inner wall of the air guide channel 143. The positioning structure also includes a second positioning post 151 fixed on the inner wall of the housing 15 for insertion into the second positioning grooves 141. Through the cooperation of the second positioning post 151 and the second positioning groove 141, as well as the cooperation of the third positioning post 152 and the third positioning groove 142, the installation and positioning of the air guide 14 and the housing 15 can be facilitated. Two protrusions 153 are provided on the inner wall of the housing 15 near the connector 3. The sound-absorbing hole 154 is opened on the protrusion 153. When the air guide 14 is installed, the two protrusions 153 can be accommodated at the end of the air guide channel 143. While further positioning the housing 15 and the air guide 14, it can also facilitate the direct guidance of the airflow and sound entering the sound-absorbing hole 154 into the air guide channel 143.
[0061] Reference Figure 3The air guide channel 143 includes a bottom wall 144 away from the top wall 145. The bottom wall 144 includes a mounting platform 1443 in the middle, first lifting surfaces 1441 on both sides of the mounting platform 1443, a gentle section on the side of the first lifting surface 1441 away from the mounting platform 1443, and a second lifting surface 1442 on the side of the gentle section away from the first lifting surface 1441. The first lifting surface 1441 and the second lifting surface 1442 are inclined or curved, so that the bottom wall 144 gradually moves away from the circuit board 12 in the direction from the end of the air guide channel 143 to the mounting platform 1443, or the bottom wall 144 is intermittently raised to the distance to the circuit board 12 by the first lifting surface 1441 and the second lifting surface 1442. The mounting platform 1443 and the gentle section can be parallel to the surface of the circuit board 12. The guide hole 1444 is opened on the mounting platform 1443 facing the circuit board 12.
[0062] The guide hole 1444 is opened perpendicular to the direction of the circuit board 12, opposite to the direction of the first lifting surface 1441 and the second lifting surface 1442 lifting the bottom wall 144. When the airflow enters the air guide channel 143, the wind speed is further reduced by the first lifting surface 1441 and the second lifting surface 1442, and the airflow gradually moves away from the pickup hole 1211. When the airflow moves above the mounting platform 1443, the airflow can further reduce the airflow speed as it turns towards the pickup hole 1211. The second positioning post 151 located in the air guide channel 143 is partially located on the airflow path and can also guide the airflow, thereby reducing wind noise.
[0063] Reference Figure 3 and Figure 5 The top wall 145 is inclined, and the distance from it to the circuit board 12 gradually increases in the direction away from the sound absorption hole 154. The end of the air guide 14 away from the top wall 145, i.e., the back of the mounting surface 1443, has a mounting groove 148 for accommodating the microphone 121 and the protective cover 123. One end of the guide hole 1444 is connected to the mounting groove 148. The inclined top wall 145 allows the bottom wall 144 to gradually move away from the circuit board 12 in the direction away from the sound absorption hole 154, providing structural design space and ensuring that the depth of the air guide channel 143 does not narrow due to the change in the bottom wall 144. The inclined top wall 145 also makes the part of the air guide 14 at the location of the mounting surface 1443 thicker, which facilitates the opening of the mounting groove 148.
[0064] Reference Figure 3A recessed groove is provided on the mounting platform 1443, and a guide hole 1444 is coaxially formed on the bottom wall 144 of the recessed groove. A sealing gasket 146 is bonded and fixed inside the recessed groove. The sealing gasket 146 includes a filter membrane 1461 coaxially in the middle. When the air guide 14 is positioned by the first positioning post 149 and the second positioning post 151, the filter membrane 1461 and the pickup hole 1211 are opposite each other. By setting the sealing gasket 146 on the mounting platform 1443, the airflow is buffered, and the filter membrane 1461 in the middle of the sealing gasket 146 can reduce the wind speed in the air guide channel 143 and reduce the amount of dust entering the microphone 121, thereby reducing wind noise and protecting the microphone 121.
[0065] In some preferred embodiments of this application, since the air guide 14 has a mirror-symmetrical structure, it can also be divided into two air guide units with mirror-like structures. The two air guide units are detachably connected by means of magnetic structures, snap-fit structures, etc., and sealing isolation pads are provided on the facing surfaces of the two air guide units. When the two air guide units are fixed, the sealing isolation pads can be clamped together, thereby reducing air leakage. Furthermore, since the air guide 14 is divided into two air guide units, the guide hole 1444 is also correspondingly divided into two halves. The inner wall of the guide hole 1444 is provided with a snap-fit groove, which can snap-fit air guide rings or filter membranes with different inner diameters according to requirements, thereby designing air guides 14 with different air passage volumes according to requirements.
[0066] The implementation principle of the clip-on earphone with wind noise reduction function in this application embodiment is as follows: During use, airflow carrying sound enters the air guide channel 143 through the sound absorption hole 154. After being guided by the inner wall of the air guide channel 143, it enters the pickup hole 1211 through the guide hole 1444, realizing the transmission of sound signals. During the transmission process, the structure of the air guide channel 143 can guide the gas and reduce the airflow velocity, thereby reducing the impact of wind noise.
[0067] Example 2
[0068] The difference between Embodiment 2 and Embodiment 1 of this application is as follows:
[0069] Reference Figure 6 and Figure 7The sound-absorbing hole 154 is oblong in shape. Two adjusting members 155 are slidably connected to the outer wall of the housing 15 on the surface where the sound-absorbing hole 154 is located. The sliding direction of the adjusting members 155 is parallel to the length direction of the sound-absorbing hole 154. The two adjusting members 155 are used one-to-one to block one opening of the sound-absorbing hole 154, that is, to adjust the opening degree of the sound-absorbing hole 154. An elongated hole 156 communicating with the sound-absorbing hole 154 is provided on the outer wall of the housing 15. The adjusting member 155 includes a connecting strip 1551 that slides in the elongated hole 156 to realize the movement of the adjusting member 155. A slide rail is formed on the outer wall of the housing 15 via a limiting edge to allow the adjusting member 155 to move. The limiting edge can limit the moving distance and moving direction of the adjusting member 155. There is a large damping force between the connecting strip 1551 and the inner wall of the elongated hole 156, or between the adjusting member 155 and the limiting edge, to restrict the free movement of the adjusting member 155. Anti-slip texture is provided on the surface of the adjusting member 155 to facilitate the user to adjust the position of the adjusting member 155.
[0070] Reference Figure 6 and Figure 7 The first positioning post 149 and the first positioning groove 122, the second positioning post 151 and the second positioning groove 141, and the third positioning post 152 and the third positioning groove 142 are all slidably connected. After the first chamber 1 is installed, the air guide 14 has a certain amount of room to move, that is, it can move towards or away from the circuit board 12. The air guide 14 has a guide groove 147 that is inclined relative to the circuit board 12, and the end of the connecting strip 1551 is inserted into the guide groove 147. When the two adjusting parts 155 move towards or away from each other, the connecting strip 1551 moves in the elongated hole 156 and applies a force to the inclined inner wall of the guide groove 147. The component of the force drives the air guide 14 to move towards or away from the circuit board 12, thereby adjusting the distance between the housing 15 and the bottom wall 144, adjusting the volume or cross-sectional size of the air guide channel 143, and thus adjusting the sound pickup effect of the first chamber 1. It should be noted that the portion of the inner wall of the housing 15 that is opposite to the top wall 145 can be configured as an inclined surface that can fit against the top wall 145, or it can extend and slide within the air guide channel 143, so that when the air guide 14 moves, air leakage to other areas of the first chamber 1 can be reduced.
[0071] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. An ear clip-on headphone with wind noise reduction function, comprising a first housing (1), a second housing (2), and a connector (3) for connecting the first housing (1) and the second housing (2), characterized in that, The first compartment (1) also includes: The housing (15) has a first inner cavity (11) formed inside it. Circuit board (12), the circuit board (12) is installed in the first inner cavity (11) and a microphone (121) is provided on its surface. The microphone (121) has a pickup hole (1211). A battery (13) that can power the microphone (121) and the circuit board (12); An air guide (14) is installed in the first inner cavity (11) and has an air guide channel (143). The air guide channel (143) extends through the air guide (14) at both ends. The housing (15) has a sound-absorbing hole (154) that communicates with the end of the air guide channel (143). The air guide channel (143) has a guide hole (1444) that faces the sound pickup hole (1211). The air guide channel (143) has an arc-shaped opening path and the two ends are parallel to each other. There are two sound-absorbing holes (154), which are opposite to the ends of the air guide channel (143). The two sound-absorbing holes (154) are located on both sides of the connector (3). The air guide (14) includes a top wall (145) away from the circuit board (12), the air guide channel (143) is opened on the top wall (145), and the inner wall of the air guide channel (143) away from the top wall (145) is the bottom wall (144). The bottom wall (144) includes an installation platform (1443) located in the middle of the air guide channel (143), a first lifting surface (1441) located at both ends of the installation platform (1443), and a second lifting surface (1442) located on the side of the first lifting surface (1441) away from the installation platform (1443). From the end of the air guide channel (143) to the mounting platform (1443), the distance between the bottom wall (144) and the circuit board (12) gradually increases, or increases intermittently through the first lifting surface (1441) and the second lifting surface (1442), and the guide hole (1444) is opened on the mounting platform (1443); The top wall (145) is inclined and the distance to the circuit board (12) gradually increases in the direction away from the inner wall of the housing (15) where the sound-absorbing hole (154) is located.
2. The ear clip-on earphone with wind noise reduction function according to claim 1, characterized in that, The air guide (14) has a mounting groove (148) for accommodating a microphone (121) at one end away from the top wall (145), and one end of the guide hole (1444) is connected to the mounting groove (148).
3. The ear clip-on earphone with wind noise reduction function according to claim 1, characterized in that, It also includes a positioning structure, which includes a first positioning post (149) disposed at one end of the air guide (14) away from the top wall (145), and a first positioning groove (122) is provided on the circuit board (12) for the first positioning post (149) to be inserted. The top wall (145) is provided with a second positioning groove (141) that communicates with the air guide channel (143). The positioning structure includes a second positioning post (151) disposed on the inner wall of the housing (15) for insertion into the second positioning groove (141). A third positioning groove (142) is provided on the top wall (145). One end of the third positioning groove (142) is connected to the mounting groove (148). The positioning structure includes a third positioning post (152) disposed on the inner wall of the housing (15) for insertion into the third positioning groove (142).
4. The ear clip-on earphone with wind noise reduction function according to claim 3, characterized in that, The inner wall of the housing (15) is provided with a protrusion (153) for being accommodated in the end of the air guide channel (143), and the sound absorption hole (154) passes through the protrusion (153).
5. The ear clip-on earphone with wind noise reduction function according to claim 1, characterized in that, The microphone (121) has a sound filter membrane inside the pickup hole (1211); A sealing gasket (146) is provided on the mounting platform (1443), and a filter membrane (1461) is provided in the middle of the sealing gasket (146) facing the guide hole (1444).
6. An ear clip-on headphone with wind noise reduction function according to claim 3, characterized in that, An adjusting member (155) for blocking the opening of the sound-absorbing hole (154) is slidably provided on the outer wall of the housing (15). The air guide (14) can slide in the housing (15) in the direction of approaching and moving away from the circuit board (12). When the adjusting member (155) moves and the area of the sound-absorbing hole (154) being blocked decreases, the housing (15) moves in the direction of approaching the circuit board (12).
7. An ear clip-on headphone with wind noise reduction function according to claim 6, characterized in that, The outer wall of the housing (15) is provided with an elongated hole (156) that communicates with the sound-absorbing hole (154), and the adjusting member (155) includes a connecting strip (1551) that slides in the elongated hole (156). The air guide (14) slides within the first inner cavity (11) via the positioning structure; The outer wall of the air guide (14) is provided with a guide groove (147) that is inclined relative to the length direction of the long hole (156), and the end of the connecting strip (1551) slides in the guide groove (147).
Citation Information
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