An earphone

Abstract

The utility model relates to earphone technical field, concretely relates to a kind of ear clamping full-in-ear earphone.The ear clamping full-in-ear earphone includes: the front shell of being provided with sound production module, the rear shell of being provided with battery, and the connecting part of connecting the front shell and the rear shell;The opposite sides of the sound production module are respectively provided with first feedback MIC and second feedback MIC, respectively setting up sound pickup hole and sound outlet on the front shell, the first feedback MIC corresponds with the sound pickup hole, the second feedback MIC is close to the sound outlet, earplug for plugging into ear canal is also set up on the front shell and is connected with the sound outlet, the earplug for plugging into ear canal is used to gather sound when double feedback active noise reduction, wherein, the first feedback MIC and the second feedback MIC are used for.The above-mentioned mode can reduce the influence of environmental noise, and improve the noise reduction effect when using.

Description

Technical Field

[0001] This utility model relates to the field of headphone technology, and in particular to a clip-on in-ear headphone. Background Technology

[0002] Clip-on headphones are mainly divided into two categories: bone conduction and air conduction. Bone conduction technology converts sound waves into mechanical vibrations through a vibrating unit, transmitting them directly to the auditory nerve in the inner ear via the skull, completely bypassing the external auditory canal and eardrum. This maintains ear canal ventilation and cleanliness while allowing users to perceive ambient sound in real time, offering significant advantages in scenarios with high safety requirements, such as sports and driving. Air conduction technology uses air as the sound transmission medium, achieving auditory perception through directional sound wave transmission. It also does not require blocking the ear canal, balancing comfort and environmental compatibility.

[0003] However, both bone conduction and air conduction clip-on headphones employ an open-ear design. While this design ensures environmental awareness, it also allows ambient noise to enter the auditory system unimpeded. Therefore, these types of clip-on headphones do not effectively meet the requirements for noise cancellation. Utility Model Content

[0004] This utility model provides a clip-on in-ear headphone that can reduce the impact of environmental noise and improve the noise reduction effect during use.

[0005] This utility model discloses a clip-on in-ear headphone, comprising: a front shell with a sound-generating module, a rear shell with a battery, and a connecting part connecting the front shell and the rear shell; a first feedback microphone and a second feedback microphone are respectively provided on opposite sides of the sound-generating module; a pickup hole and a sound outlet are respectively provided on the front shell; the first feedback microphone corresponds to the pickup hole; the second feedback microphone is close to the sound outlet; an in-ear plug connected to the sound outlet is also provided on the front shell; the in-ear plug is used to be inserted into the ear canal; wherein the first feedback microphone and the second feedback microphone are used to collect sound during dual-feed active noise cancellation.

[0006] Optionally, a snap-fit ​​part is provided at the sound outlet, and the in-ear earbud is detachably connected to the front shell through the snap-fit ​​part; the sound module includes a PCB board and a speaker disposed on one side of the PCB board, with the speaker facing the sound outlet, the first feedback MIC is electrically connected to the PCB board through a first flexible circuit board, and the second feedback MIC is electrically connected to the PCB board through a second flexible circuit board.

[0007] Optionally, the front shell includes a first shell and a second shell that are interlocked with each other, the pickup hole is disposed on the first shell, the sound outlet is disposed on the second shell, the first feedback MIC is located inside the first shell, and the second feedback MIC is located inside the second shell.

[0008] Optionally, a positioning sleeve is further provided inside the second housing. The positioning sleeve has a through hole communicating with the sound outlet. A limiting groove is provided on the outer side wall of the positioning sleeve. The second feedback MIC is housed in the limiting groove and abuts against the inner wall of the second housing. A guide groove connected to the limiting groove is also provided on the outer side of the positioning sleeve. A portion of the second flexible circuit board passes through the guide groove. An avoidance notch is also provided on the positioning sleeve. The sound pickup port of the second feedback MIC faces the avoidance notch.

[0009] Optionally, the first housing is further provided with a first vent hole, and the inner wall of the first housing is provided with a first dust cover corresponding to the first vent hole; the second housing is further provided with a second vent hole, and the inner wall of the second housing is provided with a second dust cover corresponding to the second vent hole.

[0010] Optionally, the positioning sleeve is provided with at least one snap-fit ​​groove, and the second housing is provided with a snap-fit ​​protrusion corresponding to the snap-fit ​​groove, the snap-fit ​​protrusion being able to engage with the snap-fit ​​groove; the second housing is provided with a first abutting platform, and the positioning sleeve abuts against the first abutting platform.

[0011] Optionally, the first support platform corresponds to the sound outlet, and a third dust cover is also provided on the first support platform, the third dust cover being sandwiched between the positioning sleeve and the first support platform.

[0012] Optionally, the first housing is provided with a plurality of limiting posts and a positioning platform corresponding to the limiting posts. The first housing is also provided with a printed circuit board connected to the first feedback MIC. The printed circuit board is provided with a plurality of limiting holes, and the plurality of limiting holes are inserted into the plurality of limiting posts one by one. The printed circuit board abuts against the positioning platform.

[0013] Optionally, a second abutment is also provided inside the second housing, and the edge of the horn is held in place on the second abutment.

[0014] Optionally, the pickup hole includes a first conductive section and a second conductive section that are interconnected. The first conductive section is located inside the first housing and the first conductive section and the second conductive section are set at a preset angle. The second conductive section is connected to the first housing, and the sound pickup port of the first feedback MIC is connected to the first conductive section.

[0015] The beneficial effects of the clip-on in-ear headphones provided in this embodiment are as follows: The earplugs on the front shell, once inserted into the ear canal, form a physical barrier between the ear canal and the outside world, effectively blocking some environmental noise from entering the ear canal and thus providing passive noise reduction. Simultaneously, the dual-feed active noise cancellation function, implemented with a first feedback microphone and a second feedback microphone, allows for more comprehensive noise information acquisition. This facilitates active cancellation of environmental noise entering the ear canal, thereby improving the accuracy and comprehensiveness of noise reduction. By combining active and passive noise reduction, the noise reduction effect of the clip-on in-ear headphones is greatly improved, effectively solving the problem of insufficient noise reduction in traditional clip-on headphones. This provides better conditions for users to use headphones in noisy environments, such as subways and buses, where users can clearly hear the audio output from the headphones. Attached Figure Description

[0016] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments. In the accompanying drawings: Figure 1 This is a schematic diagram of the structure of the clip-on in-ear headphone provided in this embodiment of the utility model; Figure 2 This is an exploded view of the front shell and the sound-generating module, the first feedback microphone, and the second feedback microphone in an embodiment of this utility model. Figure 3 This is a cross-sectional schematic diagram of the front shell location provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the positioning sleeve provided in an embodiment of the present utility model; Figure 5 This is a schematic diagram of the structure of the second housing provided in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of the first housing provided in an embodiment of the present utility model; Figure 7 This is a schematic diagram showing the structure of the first feedback MIC and the second feedback MIC respectively connected to the PCB board according to an embodiment of the present invention.

[0017] The labels for the attached figures are as follows: 100. Clip-on in-ear headphones; 110. Front shell; 111. Sound pickup hole; 1112. First conductive section; 1114. Second conductive section; 112. Sound outlet; 1122. Snap-on part; 113. First shell; 1132. First vent; 1133. First dust cover; 1134. Limiting post; 1135. Positioning platform; 1136. Printed circuit board; 114. Second shell; 1142. Second vent; 1143. Second dust cover; 1144. Snap protrusion; 1145. 1146. First support platform; 1147. Third dust cover; 1148. Second support platform; 120. Rear shell; 130. Connecting part; 140. Sound module; 142. PCB board; 144. Speaker; 150. First feedback microphone; 152. First flexible circuit board; 160. Second feedback microphone; 162. Second flexible circuit board; 170. In-ear earplug; 180. Positioning sleeve; 182. Through hole; 184. Limiting groove; 186. Guide groove; 188. Avoidance notch; 189. Snap-fit ​​groove. Detailed Implementation

[0018] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model embodiment provides a clip-on in-ear headphone 100, including: a front shell 110 with a sound-generating module 140, a rear shell 120 with a battery, and a connecting part 130 connecting the front shell 110 and the rear shell 120; a first feedback microphone 150 and a second feedback microphone 160 are respectively provided on opposite sides of the sound-generating module 140; a pickup hole 111 and a sound outlet 112 are respectively provided on the front shell 110; the first feedback microphone 150 corresponds to the pickup hole 111; the second feedback microphone 160 is close to the sound outlet 112; an in-ear plug 170 connected to the sound outlet 112 is also provided on the front shell 110; the in-ear plug 170 is used to insert into the ear canal; wherein, the first feedback microphone 150 and the second feedback microphone 160 are used to collect sound during dual-feed active noise cancellation.

[0020] Specifically, the front shell 110 and the rear shell 120 are connected by a connecting part 130, allowing the clip-on in-ear headphones 100 to be easily held on the outer ear during use, meeting the user's daily wearing needs. Meanwhile, a battery housed in the rear shell 120 provides power to the clip-on in-ear headphones 100. The sound-generating module 140 housed in the front shell 110 emits sound, which is transmitted into the ear canal through the sound outlet 112. The front shell 110 also features an earplug 170 connected to the sound outlet 112, which reduces sound leakage and the impact of external environmental noise on the sound-generating module 140.

[0021] The clip-on in-ear headphones 100 provided in this application embodiment, through the earplug 170 set on the front shell 110, form a physical barrier between the ear canal and the outside world after the earplug 170 is inserted into the ear canal, thereby blocking some environmental noise from entering the ear canal and achieving a passive noise reduction effect. Simultaneously, in conjunction with the dual-feed active noise reduction function implemented by the first feedback microphone 150 and the second feedback microphone 160, the first feedback microphone 150 specifically collects external environmental noise, while the second feedback microphone 160 collects sound from the ear canal, enabling more comprehensive acquisition of noise information. This facilitates the active cancellation of environmental noise entering the ear canal, thereby improving the accuracy and comprehensiveness of noise reduction. By combining active and passive noise reduction, the noise reduction effect of the clip-on in-ear headphones 100 is greatly improved, effectively solving the problem of insufficient noise reduction in traditional clip-on headphones, and providing users with better conditions for using headphones in noisy environments, such as subways and buses, where users can clearly hear the audio content output by the headphones.

[0022] like Figure 2 and Figure 3 As shown, a snap-fit ​​part 1122 is provided at the sound outlet 112, and the earbud 170 is detachably connected to the front shell 110 through the snap-fit ​​part 1122; the sound module 140 includes a PCB board 142 and a speaker 144 disposed on one side of the PCB board 142, with the speaker 144 facing the sound outlet 112; the first feedback MIC 150 is electrically connected to the PCB board 142 through the first flexible circuit board 152, and the second feedback MIC 160 is electrically connected to the PCB board 142 through the second flexible circuit board 162.

[0023] Specifically, the in-ear earbud 170 is detachably connected to the front shell 110 via the snap-fit ​​part 1122, allowing users to easily replace the in-ear earbuds 170 with different sizes and materials according to their ear canal size, wearing comfort preferences, or usage scenarios. For example, during exercise, users can choose in-ear earbuds 170 made of non-slip, breathable material, while in quiet environments, they can choose in-ear earbuds 170 with better sound isolation, thereby enhancing the personalization and comfort of wearing the earbuds. Furthermore, when the in-ear earbuds 170 become worn or damaged, users only need to replace the earbuds 170 individually, reducing user operating costs. In addition, the speaker 144 is positioned facing the sound outlet 112, enabling the sound emitted by the speaker 144 to be directly and smoothly transmitted to the sound outlet 112, reducing reflection, scattering, and loss of sound during transmission within the ear-clamping in-ear headphones 100, reducing the possibility of sound distortion, and ensuring that the audio signal is accurately converted into high-quality sound output. Meanwhile, the first flexible circuit board 152 and the second flexible circuit board 162 are connected to the PCB board 142, making full use of the flexibility and bendability of the flexible circuit boards. In the small and complex space inside the front shell 110, the flexible circuit boards can easily bypass other components for wiring and connection, reducing the difficulty of component installation and wiring layout, making the assembly process of the headphones more flexible and convenient, and helping to improve production efficiency and reduce production costs.

[0024] like Figure 2 and Figure 3 As shown, the front shell 110 includes a first shell 113 and a second shell 114 that are interlocked. A pickup hole 111 is disposed on the first shell 113, and a sound outlet 112 is disposed on the second shell 114. A first feedback MIC 150 is located inside the first shell 113, and a second feedback MIC 160 is located inside the second shell 114.

[0025] Specifically, the snap-fit ​​connection between the first housing 113 and the second housing 114 facilitates the installation and adjustment of internal components during the production of the clip-on in-ear headphones 100. The first feedback microphone 150 corresponds to the pickup hole 111 on the first housing 113, enabling direct and efficient acquisition of ambient noise, reducing noise attenuation and interference during propagation, and ensuring the authenticity and accuracy of the acquired ambient noise signal. The second feedback microphone 160 is located inside the second housing 114, which has a sound outlet 112, and is close to the sound outlet 112. It can accurately capture sound in the ear canal, facilitating the generation of more targeted anti-noise signals through comparison, further improving the effect of dual-feed active noise cancellation.

[0026] like Figure 2 and Figure 4As shown, a positioning sleeve 180 is also provided inside the second housing 114. The positioning sleeve 180 is provided with a through hole 182 that communicates with the sound outlet 112. A limiting groove 184 is provided on the outer side wall of the positioning sleeve 180. The second feedback MIC 160 is housed in the limiting groove 184 and abuts against the inner wall of the second housing 114. A guide groove 186 connected to the limiting groove 184 is also provided on the outer side of the positioning sleeve 180. A portion of the second flexible circuit board 162 passes through the guide groove 186. An avoidance notch 188 is also provided on the positioning sleeve 180. The sound acquisition port of the second feedback MIC 160 faces the avoidance notch 188.

[0027] Specifically, the through hole 182 on the positioning sleeve 180, which communicates with the sound outlet 112, helps ensure stable sound propagation from the sound-generating module 140. The limiting groove 184 on the positioning sleeve 180 precisely positions and securely fixes the second feedback microphone 160, preventing displacement due to vibration or shaking during use. This ensures the microphone remains in a preset position close to the sound outlet 112, stabilizing noise signal acquisition and preventing noise reduction effects from being affected by positional shifts. Simultaneously, the second feedback microphone 160 abuts against the inner wall of the second housing 114, further enhancing the fixation and reducing the risk of component loosening. This ensures long-term stable operation of the second feedback microphone 160 and improves the overall reliability of the clip-on in-ear headphones 100. The guide groove 186 provides a dedicated wiring channel for the second flexible circuit board 162, preventing disordered contact between the second flexible circuit board 162 and other components, reducing damage from friction and compression, and extending the service life of the second flexible circuit board 162. The design of the clearance notch 188 avoids the obstruction of the second feedback MIC 160's sound-collecting port by the positioning sleeve 180, which is beneficial for the second feedback MIC 160 to accurately collect sound from the ear canal.

[0028] like Figure 2 As shown, the first housing 113 is also provided with a first vent hole 1132, and the inner wall of the first housing 113 is provided with a first dust cover 1133 corresponding to the first vent hole 1132; the second housing 114 is also provided with a second vent hole 1142, and the inner wall of the second housing 114 is provided with a second dust cover 1143 corresponding to the second vent hole 1142.

[0029] Specifically, the first vent 1132 and the second vent 1142 allow airflow between the inside and outside of the earphone, effectively balancing the pressure difference between the inside and outside of the housing caused by the operation and temperature changes of the sound module 140. This prevents abnormal vibration of the speaker 144 diaphragm due to pressure differences, ensuring that the speaker 144 is always in a stable vibration state, reducing audio distortion, and guaranteeing the clarity and fullness of the sound output, providing users with a stable listening experience. The first dust cover 1133 and the second dust cover 1143 prevent external dust and impurities from entering the front shell 110 through the vents, preventing dust from adhering to the surfaces of internal components such as the sound module 140 and the PCB board 142. By achieving pressure balance, they also solve the dust problem, which helps ensure stability during use.

[0030] like Figure 4 and Figure 5 As shown, the positioning sleeve 180 is provided with at least one snap-fit ​​groove 189, and the second housing 114 is provided with a snap-fit ​​protrusion 1144 corresponding to the snap-fit ​​groove 189, which can snap-fit ​​with the snap-fit ​​groove 189; the second housing 114 is provided with a first abutment platform 1145, and the positioning sleeve 180 abuts against the first abutment platform 1135.

[0031] Specifically, the mating structure of the snap-fit ​​groove 189 and the snap-fit ​​protrusion 1144 requires no additional fasteners, significantly reducing assembly steps and tool usage, and lowering the difficulty of production operations. The combination of the above-mentioned snap-fit ​​structure and the first support platform 1145 achieves radial and axial bidirectional fixation of the positioning sleeve 180, preventing the positioning sleeve 180 from rotating or shifting due to vibration or collision during the use of the clip-on in-ear headphones 100.

[0032] like Figure 3 and Figure 5 As shown, the first support platform 1145 corresponds to the sound outlet 112, and a third dust cover 1146 is also provided on the first support platform 1145. The third dust cover 1146 is clamped between the positioning sleeve 180 and the first support platform 1145.

[0033] Specifically, the third dust cover 1146 is fixed by clamping the positioning sleeve 180 with the first support platform 1145, which simplifies the fixing method. In practical applications, 3M adhesive can be applied to the third dust cover 1146 for auxiliary fixing, thereby improving the reliability of the connection. Using the above method, most of the external dust can be blocked by the earplug 170, and a small amount of dust entering the sound outlet 112 can be blocked by the third dust cover 1146, ensuring that the diaphragm of the speaker 144, the through hole 182 of the positioning sleeve 180, and other parts are always kept clean, ensuring the smooth flow of sound transmission.

[0034] like Figure 6 and Figure 7As shown, the first housing 113 is provided with a plurality of limiting posts 1134 and a positioning stage 1135 corresponding to the limiting posts 1134. The first housing 113 is also provided with a printed circuit board 1136 connected to the first feedback MIC 150. The printed circuit board 1136 is provided with a plurality of limiting holes, which are inserted into the plurality of limiting posts 1134 one by one, and the printed circuit board 1136 abuts against the positioning stage 1135.

[0035] Specifically, the insertion and engagement of the limiting post 1134 and the limiting hole achieves precise positioning of the printed circuit board 1136, preventing displacement of the printed circuit board 1136 within the first housing 113. This ensures the connection point between the first feedback MIC 150 and the printed circuit board 1136 remains stable, reducing signal transmission interruptions and noise interference caused by loose connections. A positioning platform 1135 corresponding to the limiting post 1134 is provided within the first housing 113. The printed circuit board 1136 abuts against the positioning platform 1135, ensuring that after being inserted into the limiting post 1134, the printed circuit board 1136 can abut and fit snugly against the positioning platform 1135, thus limiting its position. Furthermore, multiple positioning platforms 1135 are provided to distribute the pressure on the printed circuit board 1136, preventing damage caused by localized stress concentration.

[0036] like Figure 2 , Figure 3 and Figure 5 As shown, a second support platform 1147 is also provided inside the second housing 114, and the edge of the horn 144 is held on the second support platform 1147.

[0037] Specifically, the second support platform 1147 is an integrally formed annular or arc-shaped protrusion within the second housing 114. Its shape matches the edge contour of the speaker 144, allowing it to precisely hold the edge of the speaker 144. This ensures the fixation and positioning of the speaker 144 within the second housing 114, guarantees precise alignment between the speaker 144 and the sound outlet 112, ensures sound transmission efficiency, and improves the stability of the speaker 144's operation.

[0038] like Figure 3 and Figure 7 As shown, the pickup hole 111 includes a first conductive section 1112 and a second conductive section 1114 that are interconnected. The first conductive section 1112 is located inside the first housing 113, and the first conductive section 1112 and the second conductive section 1114 are set at a preset angle. The second conductive section 1114 is connected to the first housing 113, and the sound acquisition port of the first feedback MIC 150 is connected to the first conductive section 1112.

[0039] Specifically, the first conductive section 1112 and the second conductive section 1114 are set at a preset angle. The direction and angle of the two sections can be flexibly adjusted according to the actual space inside the first housing 113. While ensuring the noise collection effect, the installation positions of other components are avoided, which improves the flexibility of the internal structure design of the first housing 113.

[0040] It should be understood that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Those skilled in the art can modify the technical solutions described in the above embodiments, or make equivalent substitutions for some of the technical features; and all such modifications and substitutions should fall within the protection scope of the appended claims of this utility model.

Claims

1. A clip-on in-ear headphone, characterized in that, include: A front shell containing a sound-generating module, a rear shell containing a battery, and a connecting portion connecting the front shell and the rear shell are provided. A first feedback microphone and a second feedback microphone are respectively provided on opposite sides of the sound-generating module. A pickup hole and a sound outlet are respectively provided on the front shell. The first feedback microphone corresponds to the pickup hole, and the second feedback microphone is close to the sound outlet. An earplug connected to the sound outlet is also provided on the front shell. The earplug is used to be inserted into the ear canal. The first feedback microphone and the second feedback microphone are used to collect sound during dual-feed active noise cancellation.

2. The ear-clamping in-ear headphone according to claim 1, characterized in that, A snap-fit ​​part is provided at the sound outlet, and the earbud is detachably connected to the front shell through the snap-fit ​​part; the sound module includes a PCB board and a speaker disposed on one side of the PCB board, with the speaker facing the sound outlet; the first feedback MIC is electrically connected to the PCB board through a first flexible circuit board, and the second feedback MIC is electrically connected to the PCB board through a second flexible circuit board.

3. The ear-clamping in-ear headphone according to claim 2, characterized in that, The front shell includes a first shell and a second shell that are interlocked with each other. The microphone hole is disposed on the first shell, the sound outlet is disposed on the second shell, the first feedback microphone is located inside the first shell, and the second feedback microphone is located inside the second shell.

4. The ear-clamping in-ear headphone according to claim 3, characterized in that, The second housing also includes a positioning sleeve with a through hole communicating with the sound outlet. The outer wall of the positioning sleeve has a limiting groove, in which the second feedback MIC is housed and abuts against the inner wall of the second housing. The outer side of the positioning sleeve also has a guide groove connected to the limiting groove, through which a portion of the second flexible circuit board passes. The positioning sleeve also has an avoidance notch, with the sound pickup port of the second feedback MIC facing the avoidance notch.

5. The ear-clamping in-ear headphone according to claim 4, characterized in that, The first housing is also provided with a first vent hole, and the inner wall of the first housing is provided with a first dust cover corresponding to the first vent hole; the second housing is also provided with a second vent hole, and the inner wall of the second housing is provided with a second dust cover corresponding to the second vent hole.

6. The ear-clamping in-ear headphone according to claim 4, characterized in that, The positioning sleeve is provided with at least one snap-fit ​​groove, and the second housing is provided with a snap-fit ​​protrusion corresponding to the snap-fit ​​groove, the snap-fit ​​protrusion being able to snap into the snap-fit ​​groove; the second housing is provided with a first abutting platform, and the positioning sleeve abuts against the first abutting platform.

7. The ear-clamping in-ear headphone according to claim 6, characterized in that, The first support platform corresponds to the sound outlet, and a third dust cover is also provided on the first support platform. The third dust cover is sandwiched between the positioning sleeve and the first support platform.

8. The ear-clamping in-ear headphone according to any one of claims 3-7, characterized in that, The first housing is provided with a plurality of limiting posts and a positioning platform corresponding to the limiting posts. The first housing is also provided with a printed circuit board connected to the first feedback MIC. The printed circuit board is provided with a plurality of limiting holes, and the plurality of limiting holes are inserted into the plurality of limiting posts one by one. The printed circuit board abuts against the positioning platform.

9. The ear-clamping in-ear headphone according to claim 7, characterized in that, The second housing also includes a second support platform, on which the edge of the horn is held.

10. The ear-clamping in-ear headphone according to claim 7, characterized in that, The pickup hole includes a first conductive section and a second conductive section that are interconnected. The first conductive section is located inside the first housing and the first conductive section and the second conductive section are set at a preset angle. The second conductive section is connected to the first housing, and the sound pickup port of the first feedback MIC is connected to the first conductive section.

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