Ear clip type earphone and earphone suite

Abstract

The utility model relates to the technical field of earphones, in particular to an ear clip type earphone and an earphone kit. The ear clip type earphone comprises a front shell provided with a sound production module, a rear shell provided with a storage battery, and a connecting part for connecting the front shell and the rear shell, a front sound cavity and a rear sound cavity are formed between the sound production module and the front shell, a first microphone is arranged in the front sound cavity, a second microphone is arranged in the rear sound cavity, and the front shell is further provided with a sound hole corresponding to the second microphone and a vent hole communicated with the rear sound cavity. A sound outlet communicated with the front sound cavity is formed in the front shell, the first microphone is used for detecting sound near an ear canal, and the second microphone is used for detecting sound of the environment. By adopting the mode, the audio effect can be improved, and the user experience is improved.

Description

Technical Field

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

[0002] Clip-on headphones, as a representative form of open-back headphones, typically include a front shell with a sound chamber, a rear shell with a battery chamber, and a curved rod connecting the two. Compared with traditional in-ear or semi-in-ear headphones, they offer a significant improvement in wearing comfort.

[0003] When using clip-on headphones, the front shell with the sound cavity does not need to be inserted into the ear canal to transmit sound directly into the ear canal. In this way, users will not only not feel pressure on their ear canal, but can also receive external sounds and the sound emitted by the clip-on headphones at the same time, thus improving safety when using them outdoors.

[0004] However, the current structure of clip-on headphones can lead to poor audio quality, affecting the user experience. Utility Model Content

[0005] The technical problem to be solved by this utility model embodiment is to provide an ear clip-on headphone and headphone kit that can improve audio effects and thus enhance user experience.

[0006] This utility model discloses an ear clip-on earphone, 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 front sound cavity and a rear sound cavity are formed between the sound-generating module and the front shell, a first microphone is disposed in the front sound cavity, a second microphone is disposed in the rear sound cavity, the front shell is also provided with a sound hole corresponding to the second microphone and a vent hole communicating with the rear sound cavity, and a sound outlet communicating with the front sound cavity is formed on the front shell, wherein the first microphone is used to detect sound near the ear canal, and the second microphone is used to detect ambient sound.

[0007] Optionally, the ear clip-on headphones further include a first circuit board and a second circuit board disposed in the rear acoustic cavity. The first circuit board is electrically connected to the sound-generating module, and the second circuit board is electrically connected to the second microphone. The first circuit board and the second circuit board are electrically connected through a first flexible circuit board, and the first microphone is electrically connected to the first circuit board through a second flexible circuit board.

[0008] Optionally, a positioning sleeve is also provided inside the front acoustic cavity. The positioning sleeve has a through hole that communicates with the sound outlet. A limiting groove is provided on the outer side wall of the positioning sleeve. The first microphone is housed in the limiting groove and abuts against the inner wall of the front shell. 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.

[0009] Optionally, the bottom of the limiting groove is provided with a first clearance notch, and the first pickup hole of the first microphone faces the first clearance notch.

[0010] Optionally, the positioning sleeve is provided with at least one snap-fit ​​groove, and the front shell 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.

[0011] Optionally, the front shell is further provided with a vent hole corresponding to the front sound cavity, and the positioning sleeve is provided with a second notch corresponding to the vent hole, so that the vent hole is connected to the front sound cavity.

[0012] Optionally, the inner wall of the front shell is provided with a first dust cover corresponding to the vent hole and a second dust cover corresponding to the vent hole.

[0013] Optionally, the rear acoustic cavity is provided with a plurality of limiting posts and a support platform corresponding to the limiting posts. The second circuit board is provided with a plurality of limiting holes, and the plurality of limiting holes are inserted into the plurality of limiting posts in a one-to-one correspondence. The second circuit board abuts against the support platform.

[0014] Optionally, the second microphone is disposed on the side of the second circuit board facing the first circuit board, and a flexible gasket is disposed on the side of the second circuit board away from the first circuit board. A base is also disposed in the rear acoustic cavity. The sound hole includes a first conductive section and a second conductive section connected to each other. The first conductive section and the second conductive section are disposed at a preset angle, and the first conductive section is disposed in the base. The second conductive section is connected to the front shell. The flexible gasket abuts against the end face of the base and is connected to the second pickup hole of the second microphone.

[0015] Optionally, the connecting part is connected to the front shell via a connector, and the connector is provided with a cut to avoid the base, so that the connector is limited and locked to the base through the cut.

[0016] Optionally, the connecting portion includes a first end face connected to the front shell and a second end face connected to the rear shell; the front shell includes a front shell end face connected to the connecting portion, and the rear shell includes a rear shell end face connected to the connecting portion; the area of ​​the first end face is smaller than the area of ​​the front shell end face, and the area of ​​the second end face is smaller than the area of ​​the rear shell end face.

[0017] Optionally, the connecting portion is bounded by the side of the ear and includes a first curved portion disposed in front of the ear and a second curved portion disposed behind the ear; the first curved portion connects to the second curved portion, and the curvature of the first curved portion is less than the curvature of the second curved portion.

[0018] This utility model also discloses an earphone kit, including a charging case and ear clip-on earphones as described in any one of the above. The ear clip-on earphones can be stored in the charging case for charging.

[0019] Compared with the prior art, the beneficial effects of the ear-clip headphones and headphone kit provided by this utility model embodiment are as follows: the front shell protects and fixes the sound-generating module, while also participating in the construction of the front and rear sound chambers. A battery is housed inside the rear shell, providing power to the entire ear-clip headphones. The reasonable placement of the battery allows the ear-clip headphones to meet the user's usage needs for a certain period while maintaining portability. The rear shell and front shell are connected by a connecting part to form a complete headphone structural frame. During use, the first microphone is located in the front sound chamber to detect sounds near the ear canal. This is crucial for achieving functions such as call noise reduction and personalized audio adjustment. By accurately capturing sounds near the ear canal, the ear-clip headphones can better identify the sounds emitted by the sound-generating module, making it easier to distinguish the sounds acquired by the second microphone. The second microphone is located in the rear sound chamber and its function is to detect ambient sounds. Using the ambient sound information acquired by the second microphone, the headphones can achieve active noise cancellation, effectively reducing the interference of external noise on the user's listening experience. The sound vent on the front shell corresponds to the second microphone, ensuring that ambient sound can be smoothly transmitted to the second microphone, enabling it to accurately detect ambient noise. The vent connects to the rear acoustic chamber, helping to balance the air pressure within the rear acoustic chamber and preventing adverse effects on sound propagation and microphone performance due to pressure changes. The sound outlet on the front shell connects to the front acoustic chamber; sound regulated by the front acoustic chamber is transmitted to the user's ear canal through the sound outlet, thus improving audio quality and enhancing the user experience. Attached Figure Description

[0020] 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:

[0021] Figure 1This is one of the structural schematic diagrams of the clip-on earphone provided in this utility model embodiment;

[0022] Figure 2 This is the second structural schematic diagram of the clip-on earphone provided in this embodiment of the utility model;

[0023] Figure 3 This is a cross-sectional schematic diagram of the connection between the front shell and the connecting part provided in an embodiment of the present utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the sound-generating module, the first microphone, and the second microphone connected according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the positioning sleeve provided in an embodiment of the present utility model;

[0026] Figure 6 This is a schematic diagram of the front acoustic cavity provided in an embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the rear acoustic cavity provided in an embodiment of this utility model.

[0028] The labels for the attached figures are as follows:

[0029] 100. Clip-on earphone; 110. Front shell; 1102. Front shell end face; 111. Front acoustic chamber; 1112. First microphone; 1114. Clip protrusion; 112. Rear acoustic chamber; 1122. Second microphone; 1124. Limiting post; 1126. Support platform; 1128. Flexible washer; 113. Sound hole; 1132. First conductive section; 1134. Second conductive section; 114. Vent hole; 115. Breathing hole; 116. Sound outlet; 117. First dust cover; 118. Second dust cover; 119. Base; 120. 122. Rear shell; 130. Connecting part; 132. Connector head; 1322. Cutout; 134. First end face; 135. Second end face; 136. First curved part; 137. Second curved part; 140. Sound module; 150. First circuit board; 152. First flexible circuit board; 154. Second flexible circuit board; 160. Second circuit board; 170. Positioning sleeve; 172. Through hole; 173. Limiting groove; 174. Guide groove; 175. First clearance notch; 176. Snap-fit ​​groove; 177. Second notch. Detailed Implementation

[0030] 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.

[0031] like Figure 1 , Figure 2 and Figure 3 As shown, this utility model embodiment provides an ear clip-on earphone 100, including: a front shell 110 with a sound-emitting 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 front sound cavity 111 and a rear sound cavity 112 are formed between the sound-emitting module 140 and the front shell 110, a first microphone 1112 is provided in the front sound cavity 111, a second microphone 1122 is provided in the rear sound cavity 112, a sound hole 113 corresponding to the second microphone 1122 is provided on the front shell 110, and a vent hole 114 communicating with the rear sound cavity 112 is provided on the front shell 110, and a sound outlet 116 communicating with the front sound cavity 111 is formed on the front shell 110, wherein the first microphone 1112 is used to detect the sound near the ear canal, and the second microphone 1122 is used to detect the sound of the environment.

[0032] Specifically, the front acoustic cavity 111 and rear acoustic cavity 112 formed between the sound-emitting module 140 and the front shell 110 enable regional sound processing. The front acoustic cavity 111 optimizes the sound emitted by the sound-emitting module 140 to better match the auditory characteristics of the human ear, while the rear acoustic cavity 112 detects ambient sound through the second microphone 1122 and, in conjunction with an active noise cancellation algorithm, effectively reduces external noise, thereby significantly improving the clarity and purity of the audio. For example, in a noisy subway environment, after the second microphone 1122 detects ambient noise, the headphones can emit inverse sound waves to cancel out some of the noise, allowing the user to hear music or call content more clearly.

[0033] The ear-clip earphone 100 provided in this embodiment protects and secures the sound-generating module 140 through the front shell 110, and also participates in the construction of the front acoustic cavity 111 and the rear acoustic cavity 112. A battery is housed within the rear shell 120, providing power to the entire ear-clip earphone 100. The strategic placement of the battery ensures that the ear-clip earphone 100 maintains portability while meeting the user's usage needs for a certain period. The rear shell 120 and the front shell 110 are connected by a connecting part 130, forming a complete earphone structural frame. During use, the first microphone 1112 is located within the front acoustic cavity 111 to detect sounds near the ear canal. This is crucial for achieving functions such as call noise reduction and personalized audio adjustment. By accurately capturing sounds near the ear canal, the ear-clip earphone 100 can better identify the sounds emitted by the sound-generating module 140, thus distinguishing them from the sounds acquired by the second microphone 1122. The second microphone 1122 is located inside the rear acoustic cavity 112. Its function is to detect ambient sound. Using the ambient sound information obtained by the second microphone 1122, the headphones can achieve active noise cancellation, effectively reducing the interference of external noise on the user's listening experience. The sound vent 113 on the front shell 110 corresponds to the second microphone 1122, ensuring that ambient sound can be smoothly transmitted to the second microphone 1122, enabling it to accurately detect ambient noise. The vent 114 is connected to the rear acoustic cavity 112. Its presence helps to balance the air pressure inside the rear acoustic cavity 112, avoiding adverse effects on sound propagation and microphone performance due to air pressure changes. The sound outlet 116 formed on the front shell 110 is connected to the front acoustic cavity 111. The sound regulated by the front acoustic cavity 111 is transmitted to the user's ear canal through the sound outlet 116, thereby improving audio quality and enhancing the user experience.

[0034] like Figure 3 and Figure 4 As shown, the ear clip-on earphone 100 also includes a first circuit board 150 and a second circuit board 160 disposed in the rear sound cavity 112. The first circuit board 150 is electrically connected to the sound-generating module 140, and the second circuit board 160 is electrically connected to the second microphone 1122. The first circuit board 150 and the second circuit board 160 are electrically connected through a first flexible circuit board 152, and the first microphone 1112 is electrically connected to the first circuit board 150 through a second flexible circuit board 154.

[0035] Specifically, the first flexible circuit board 152 serves to connect the first circuit board 150 and the second circuit board 160. Due to its bendability and thinness, the flexible circuit board allows for flexible wiring within the limited space of the rear acoustic cavity 112, reducing space occupation by other components while ensuring a stable electrical connection between the first circuit board 150 and the second circuit board 160. The second flexible circuit board 154 connects the first microphone 1112 and the first circuit board 150. It transmits the sound signal near the ear canal detected by the first microphone 1112 to the first circuit board 150 for subsequent processing and analysis. Similarly, the flexibility of the first and second flexible circuit boards 152 and 154 makes wiring more convenient and can adapt to the complex structural layout between the front acoustic cavity 111 and the rear acoustic cavity 112. The first circuit board 150 is located within the rear acoustic cavity 112 and is electrically connected to the sound-generating module 140. It is mainly responsible for signal control and power supply to the sound-generating module 140, converting audio signals into drive signals that the sound-generating module 140 can recognize, thereby controlling the sound-generating module 140 to generate sound. In addition, by setting the above-mentioned electrical connection form as a separate form of the first circuit board 150 and the second circuit board 160, it is beneficial to improve the flexibility of the different positions of the various components in the front shell 110, and to make more reasonable use of the internal space of the front shell 110.

[0036] like Figure 3 , Figure 4 and Figure 5 As shown, a positioning sleeve 170 is also provided inside the front acoustic cavity 111. The positioning sleeve 170 is provided with a through hole 172 that communicates with the sound outlet 116. A limiting groove 173 is provided on the outer side wall of the positioning sleeve 170. The first microphone 1112 is housed in the limiting groove 173 and abuts against the inner wall of the front shell 110. A guide groove 174 connected to the limiting groove 173 is also provided on the outer side of the positioning sleeve 170. A portion of the second flexible circuit board 154 passes through the guide groove 174.

[0037] Specifically, the limiting groove 173 on the outer wall of the positioning sleeve 170 is used to accommodate the first microphone 1112, and the first microphone 1112 abuts against the inner wall of the front shell 110. This design can precisely fix the position of the first microphone 1112, enabling it to stably detect sounds near the ear canal. The size and shape of the limiting groove 173 match the first microphone 1112, ensuring the secure installation of the first microphone 1112. In addition, the guide groove 174 provides protection and wiring guidance for the second flexible circuit board 154. During daily use of the ear clip-on earphone 100, the risk of damage to the second flexible circuit board 154 due to compression, bending, or friction with other components is avoided, extending the service life of the second flexible circuit board 154 and ensuring the stability of signal transmission. At the same time, the design of the positioning sleeve 170 and its through hole 172 can guide the direction of sound transmission from the sound-emitting module 140, further optimizing the sound propagation path within the front acoustic cavity 111. This allows sound to be transmitted more concentratedly and effectively through the sound outlet 116 to the ear canal, reducing sound scattering and loss, thereby improving the clarity and quality of the audio.

[0038] like Figure 3 and Figure 5 As shown, the bottom of the limiting groove 173 is provided with a first clearance notch 175, and the first pickup hole of the first microphone 1112 faces the first clearance notch 175.

[0039] Specifically, the first clearance notch 175 enables the first pickup hole to connect with the through hole 172 of the positioning sleeve 170, thereby significantly enhancing the sound collection effect of the first microphone 1112 near the ear canal. By orienting the first pickup hole toward the first clearance notch 175, the obstruction in the sound propagation process is reduced, allowing the first microphone 1112 to more sensitively capture subtle sound changes.

[0040] like Figure 5 and Figure 6 As shown, the positioning sleeve 170 is provided with at least one snap-fit ​​groove 176, and the front shell 110 is provided with a snap-fit ​​protrusion 1114 corresponding to the snap-fit ​​groove 176, which can be snapped into the snap-fit ​​groove 176.

[0041] Specifically, the snap-fit ​​groove 176 on the positioning sleeve 170 cooperates with the corresponding snap-fit ​​protrusion 1114 inside the front shell 110. The snap-fit ​​protrusion 1114 can engage with the snap-fit ​​groove 176, achieving a fixed connection between the positioning sleeve 170 and the front shell 110. This snap-fit ​​method is simple and reliable, requiring no additional fixing components and reducing the number of internal parts of the ear clip-on headphone 100. The number and position of the snap-fit ​​groove 176 and snap-fit ​​protrusion 1114 are determined according to actual design requirements, but usually at least one is provided to ensure the stability of the positioning sleeve 170 installation. For example, the snap-fit ​​protrusion 1114 and snap-fit ​​groove 176 can be distributed in 2 to 3 sets to ensure the stability of their cooperation.

[0042] like Figure 2 and Figure 5 As shown, the front shell 110 is also provided with a vent hole 115 corresponding to the front sound cavity 111, and the positioning sleeve 170 is provided with a second notch 177 corresponding to the vent hole 115, so that the vent hole 115 is connected to the front sound cavity 111.

[0043] Specifically, by setting the vent 115 and the second notch 177 to balance the air pressure inside the front acoustic cavity 111, sound distortion or sound quality degradation caused by air pressure changes can be effectively avoided. Even in environments with significant air pressure changes, such as when flying, the headphones can still maintain good audio performance, providing users with a stable sound experience. The cooperation between the vent 115 and the air vent 114 helps reduce damage to the internal components of the ear-clip headphones 100 caused by air pressure issues, extending the lifespan of the ear-clip headphones 100. For example, it avoids problems such as diaphragm deformation of the sound module 140 caused by air pressure differences, ensuring the normal operation of all components of the ear-clip headphones 100.

[0044] like Figure 4 As shown, the inner wall of the front shell 110 is provided with a first dust cover 117 corresponding to the vent 114 and a second dust cover 118 corresponding to the vent 115.

[0045] Specifically, the first dust cover 117 and the second dust cover 118 provide effective dust protection for the sensitive components inside the ear clip-on earphone 100. This reduces component failures and short circuits in electronic components caused by dust accumulation, extending the service life of the ear clip-on earphone 100. When using the ear clip-on earphone 100 in dusty environments, the dust covers can block most of the dust, ensuring the normal operation of the ear clip-on earphone 100.

[0046] like Figure 7As shown, the rear acoustic cavity 112 is provided with a plurality of limiting posts 1124 and a support platform 1126 corresponding to the limiting posts 1124. The second circuit board 160 is provided with a plurality of limiting holes, which are inserted into the plurality of limiting posts 1124 in a corresponding manner, and the second circuit board 160 abuts against the support platform 1126.

[0047] Specifically, multiple limiting posts 1124 and abutment platforms 1126 arranged within the rear acoustic cavity 112 cooperate to fix the second circuit board 160. Multiple limiting holes on the second circuit board 160 are inserted one-to-one with the limiting posts 1124, ensuring accurate positioning when the second circuit board 160 is inserted into the limiting posts 1124. Simultaneously, the second circuit board 160 abuts against the abutment platforms 1126, further ensuring the stability of the second circuit board 160 installation. The number and position of the limiting posts 1124 and abutment platforms 1126, as well as the distribution of the limiting holes, are designed according to the size and shape of the second circuit board 160 to ensure optimal fixing effect.

[0048] like Figure 3 and Figure 4 As shown, the second microphone 1122 is disposed on the side of the second circuit board 160 facing the first circuit board 150. A flexible gasket 1128 is disposed on the side of the second circuit board 160 away from the first circuit board 150. A base 119 is also disposed in the rear acoustic cavity 112. The sound hole 113 includes a first conductive section 1132 and a second conductive section 1134 connected to each other. The first conductive section 1132 and the second conductive section 1134 are disposed at a preset angle. The first conductive section 1132 is disposed in the base 119. The second conductive section 1134 is connected to the front shell 110. The flexible gasket 1128 abuts against the end face of the base 119 and is connected to the second pickup hole of the second microphone 1122.

[0049] Specifically, the flexible gasket 1128 protects the second circuit board 160 and the base 119 while optimizing the sound entering the second microphone 1122. It reduces the impact of vibration on the second circuit board 160, extending its lifespan. Simultaneously, it avoids distortion caused by sound dispersion, improving the quality of sound detection and indirectly enhancing the audio performance of the ear-clip headphones 100. The base 119, located within the rear acoustic cavity 112, provides structural support for the sound transmission hole 113. The sound transmission hole 113 consists of a first conductive section 1132 and a second conductive section 1134 connected to each other at a preset angle. The first conductive section 1132 is located within the base 119, and the second conductive section 1134 communicates with the front shell 110. This design allows ambient sound to be smoothly transmitted to the second microphone hole through the second conductive section 1134 and the first conductive section 1132, while the preset angle guides and optimizes the sound propagation path, improving the accuracy of sound acquisition. Understandably, the second circuit board 160 also needs to have corresponding small holes at the positions corresponding to the second pickup hole in order to facilitate smooth conduction between the second pickup hole and the second pickup hole.

[0050] like Figure 3 As shown, the connecting part 130 is connected to the front shell 110 through the connector 132. The connector 132 is provided with a cutout 1322 to avoid the base 119, so that the connector 132 is limited and locked to the base 119 through the cutout 1322.

[0051] Specifically, the notch 1322 on the connector 132 is designed to avoid the base 119 while simultaneously achieving a limiting and locking action with the base 119. The shape and size of the notch 1322 match the base 119. When the connector 132 is installed, it is locked to the base 119 through the notch 1322. This design not only fixes the position of the connector 132 but also prevents rotation at the connection point, thus ensuring the stability of the connection.

[0052] like Figure 1 As shown, the connecting portion 130 includes a first end face 134 connected to the front shell 110 and a second end face 135 connected to the rear shell 120; the front shell 110 includes a front shell end face 1102 connected to the connecting portion 130, and the rear shell 120 includes a rear shell end face 122 connected to the connecting portion 130; the area of ​​the first end face 134 is smaller than the area of ​​the front shell end face 1102, and the area of ​​the second end face 135 is smaller than the area of ​​the rear shell end face 122.

[0053] Specifically, when one end of the connecting part 130 is connected to the outer shell, the first end face 134 mates with the front shell end face 1102; when the other end of the connecting part 130 is connected to the outer shell, the second end face 135 mates with the rear shell end face 122, to ensure a proper fit during connection. Furthermore, the area of ​​the first end face 134 is smaller than the area of ​​the front shell end face 1102, and the area of ​​the second end face 135 is smaller than the area of ​​the rear shell end face 122. This facilitates easier mating of the connecting part 130 with both the outer shell 110 and the outer shell 120, reduces the difficulty of mating, and also protects both ends of the connecting part 130.

[0054] like Figure 1 and Figure 2 As shown, the connecting portion 130 is bounded by the side of the ear and includes a first curved portion 136 disposed in front of the ear and a second curved portion 137 disposed behind the ear; the first curved portion 136 connects to the second curved portion 137, and the curvature of the first curved portion 136 is less than the curvature of the second curved portion 137.

[0055] Specifically, the connection between the first curved section 136 and the second curved section 137 facilitates the clamping of the user's auricle, making it easier for the sound-generating module 140 to align with the ear canal and ensure effective sound propagation. Furthermore, the curvature of the first curved section 136 is less than that of the second curved section 137, allowing for a better fit to the shape of the auricle and improving comfort when clamping it.

[0056] This utility model also discloses an earphone kit, including a charging case and the ear-clip earphone 100 described in the foregoing embodiments. The ear-clip earphone 100 can be stored in the charging case for charging. It is understood that two ear-clip earphones 100 can be configured so that both the left and right ears can use them, thereby improving the user experience. This earphone kit includes the same structure and beneficial effects as the ear-clip earphone 100 described in the foregoing embodiments. The structure and beneficial effects of the ear-clip earphone 100 have been described in detail in the foregoing embodiments and will not be repeated here.

[0057] 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. An ear clip-on 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 front acoustic cavity and a rear acoustic cavity are formed between the sound-generating module and the front shell. A first microphone is provided in the front acoustic cavity, and a second microphone is provided in the rear acoustic cavity. The front shell is also provided with a sound hole corresponding to the second microphone and a vent hole communicating with the rear acoustic cavity. The front shell is also provided with a sound outlet communicating with the front acoustic cavity. The first microphone is used to detect sounds near the ear canal, and the second microphone is used to detect ambient sounds.

2. The ear clip-on earphone according to claim 1, characterized in that, The ear clip-on headphones also include a first circuit board and a second circuit board disposed in the rear acoustic cavity. The first circuit board is electrically connected to the sound-generating module, and the second circuit board is electrically connected to the second microphone. The first circuit board and the second circuit board are electrically connected through a first flexible circuit board, and the first microphone is electrically connected to the first circuit board through a second flexible circuit board.

3. The ear clip-on earphone according to claim 2, characterized in that, A positioning sleeve is also provided inside the front acoustic cavity. The positioning sleeve has a through hole that communicates with the sound outlet. A limiting groove is provided on the outer side wall of the positioning sleeve. The first microphone is housed in the limiting groove and abuts against the inner wall of the front shell. 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.

4. The ear clip-on earphone according to claim 3, characterized in that, The bottom of the limiting groove is provided with a first clearance notch, and the first pickup hole of the first microphone faces the first clearance notch.

5. The ear clip-on earphone according to claim 4, characterized in that, The positioning sleeve is provided with at least one snap-fit ​​groove, and the front shell is provided with a snap-fit ​​protrusion corresponding to the snap-fit ​​groove, which can be snapped into the snap-fit ​​groove.

6. The ear clip-on earphone according to claim 3, characterized in that, The front shell is also provided with a vent hole corresponding to the front sound cavity, and the positioning sleeve is provided with a second notch corresponding to the vent hole, so that the vent hole is connected to the front sound cavity.

7. The ear clip-on earphone according to claim 6, characterized in that, The inner wall of the front shell is provided with a first dust cover corresponding to the vent hole and a second dust cover corresponding to the vent hole.

8. The ear clip-on earphone according to any one of claims 2-7, characterized in that, The rear acoustic cavity is provided with multiple limiting posts and abutment platforms corresponding to the limiting posts. The second circuit board is provided with multiple limiting holes, and the multiple limiting holes are inserted into the multiple limiting posts one by one. The second circuit board abuts against the abutment platforms.

9. The ear clip-on earphone according to claim 8, characterized in that, The second microphone is disposed on the side of the second circuit board facing the first circuit board. A flexible gasket is disposed on the side of the second circuit board away from the first circuit board. A base is also disposed in the rear acoustic cavity. The sound hole includes a first conductive section and a second conductive section connected to each other. The first conductive section and the second conductive section are disposed at a preset angle. The first conductive section is disposed in the base. The second conductive section is connected to the front shell. The flexible gasket abuts against the end face of the base. The flexible gasket is connected to the second pickup hole of the second microphone.

10. The ear clip-on earphone according to claim 9, characterized in that, The connecting part is connected to the front shell through a connector. The connector is provided with a cut to avoid the base, so that the connector is limited and locked to the base through the cut.

11. The ear clip-on earphone according to any one of claims 1-6, characterized in that, The connecting portion includes a first end face connected to the front shell and a second end face connected to the rear shell; the front shell includes a front shell end face connected to the connecting portion, and the rear shell includes a rear shell end face connected to the connecting portion; the area of ​​the first end face is smaller than the area of ​​the front shell end face, and the area of ​​the second end face is smaller than the area of ​​the rear shell end face.

12. The ear clip-on earphone according to any one of claims 1-6, characterized in that, The connecting portion is bounded by the side of the ear and includes a first curved portion located in front of the ear and a second curved portion located behind the ear; the first curved portion connects to the second curved portion, and the curvature of the first curved portion is less than the curvature of the second curved portion.

13. A headphone kit, characterized in that, The device includes a charging case and an ear clip-on earphone as described in any one of claims 1-12, wherein the ear clip-on earphone can be stored in the charging case for charging.

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