Ear clip type earphone and earphone suite
By using parallel circuit board placement and rational arrangement of functional modules in clip-on headphones, the problem of low space utilization in clip-on headphones has been solved, resulting in a smaller, more reliable design that improves wearing stability and signal quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN GREEN CONNECTION TECH CO LTD
- Filing Date
- 2025-04-22
- Publication Date
- 2026-05-22
AI Technical Summary
The existing ear clip-on headphones have an unreasonable internal structure and low space utilization, resulting in an oversized back shell, which affects the wearing reliability in sports scenarios.
The design employs a parallel arrangement of the first and second circuit boards, with the battery and microphone mounted on separate circuit boards. Flexible circuit boards and memory steel wires are used to improve connection reliability and space utilization.
It improves the space utilization of clip-on headphones, reduces the volume of the back shell, enhances the connection reliability with the ear, reduces signal interference, improves the clarity of calls and voice recognition, and provides a more stable power supply and a more comfortable wearing experience.
Smart Images
Figure CN224267132U_ABST
Abstract
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] As a representative form of open-ear headphones, clip-on headphones typically include a front shell with a sound chamber, a rear shell with a battery chamber, and a connector between the two. Compared with traditional in-ear or semi-in-ear headphones, they offer significantly improved wearing comfort.
[0003] Due to their unique shape and wearing method, clip-on headphones can be used by simply connecting and clamping the two sides of the ear with a simple connector. In order to prevent the clip-on headphones from accidentally falling off during exercise, the size of the headphones is made as small as possible to reduce their weight and improve the reliability of the connection with the ear.
[0004] However, the current internal structure of clip-on headphones is not well designed and the space utilization is not high enough, resulting in the back shell of clip-on headphones being too large, which cannot meet the reliability requirements when wearing them in sports scenarios. Utility Model Content
[0005] The technical problem to be solved by this utility model embodiment is to provide an ear clip-on earphone and earphone kit, which can improve the rationality of the use of space inside the back shell, reduce the volume of the back shell, and thus improve the reliability of the connection with the auricle.
[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. The rear shell contains a first circuit board and a second circuit board in parallel. The first circuit board and the second circuit board are electrically connected. The battery is disposed on the first circuit board, and a microphone is disposed on the second circuit board. The second circuit board is located on one side of the battery in the width direction. The rear shell has a through hole corresponding to the microphone.
[0007] Optionally, the first circuit board is provided with a first connection terminal, the second circuit board is connected with a flexible circuit board, the flexible circuit board is provided with a second connection terminal, and the first connection terminal and the second connection terminal can be plugged into each other.
[0008] Optionally, the rear shell includes a first shell and a second shell that are interlocked with each other. The first shell is provided with a plurality of first limiting posts and a plurality of second limiting posts. The first shell is also provided with a first abutment platform corresponding to the first limiting posts and a second abutment platform corresponding to the second limiting posts. The first circuit board is provided with a plurality of first limiting holes, which are inserted into the plurality of first limiting posts one by one, and the first circuit board abuts against the first abutment platform. The second circuit board is provided with a plurality of second limiting holes, which are inserted into the plurality of second limiting posts one by one, and the second circuit board abuts against the second abutment platform.
[0009] Optionally, the microphone is disposed on the side of the second circuit board away from the first circuit board, a flexible gasket is disposed on the side of the second circuit board facing the first circuit board, a first through hole is disposed on the first circuit board, the flexible gasket has a second through hole, and the first through hole, the second through hole and the through hole are sequentially connected.
[0010] Optionally, a base is provided inside the first housing, and the through 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 set at a preset angle, and the first conductive section is disposed inside the base, the second conductive section is disposed on the first housing, and the flexible gasket abuts against the end face of the base.
[0011] Optionally, the second circuit board has multiple pads on the side opposite to the first circuit board, and a wire is threaded through the connection part. The wire includes multiple cores, and the multiple cores are soldered to the multiple pads one by one.
[0012] Optionally, a memory steel wire is also threaded through the connecting part, with both ends of the memory steel wire extending out of both ends of the connecting part.
[0013] 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.
[0014] 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.
[0015] Optionally, the battery is soldered to the first circuit board.
[0016] Optionally, the edge of the first circuit board is further provided with a limiting groove, and a charging pin is provided at the limiting groove. The extension direction of the charging pin is coplanar with the first circuit board or at an obtuse angle, and one end of the charging pin is inserted into the limiting groove, while the other end of the charging pin extends to the outer surface of the rear shell.
[0017] 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.
[0018] Compared with the prior art, the beneficial effects of the ear clip-on earphone and earphone kit provided by this utility model embodiment are as follows: By arranging the first circuit board and the second circuit board parallel to each other inside the rear shell, the three-dimensional space inside the rear shell is fully utilized, greatly improving space utilization. This helps to reduce the overall size of the rear shell, and for the same battery capacity, the ear clip-on earphone can be made smaller and lighter. In addition, by placing the battery on the first circuit board and the microphone on the second circuit board, while keeping the microphone away from the first circuit board and rationally arranging their relative positions, the signal transmission between various functional modules is more stable, reducing the possibility of signal interference. For example, the battery may generate certain electromagnetic interference during operation. By placing the microphone and battery on different circuit boards and maintaining a reasonable distance, the impact of this interference on the quality of the sound signal collected by the microphone can be effectively reduced, thereby improving the clarity of calls and voice command recognition. Since the second circuit board mainly houses the microphone and occupies less space, placing the second circuit board on one side of the battery width direction can improve the rationality of space utilization inside the rear shell, reduce the volume of the rear shell, and thus improve the reliability of the connection with the ear. Attached Figure Description
[0019] 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:
[0020] Figure 1 This is one of the structural schematic diagrams of the clip-on earphone provided in this utility model embodiment;
[0021] Figure 2 This is the second structural schematic diagram of the clip-on earphone provided in this embodiment of the utility model;
[0022] Figure 3 This is a partial cross-sectional schematic diagram of the clip-on earphone provided in this embodiment of the utility model;
[0023] Figure 4 This is a schematic diagram of the structure of the first circuit board and the second circuit board in cooperation according to an embodiment of the present invention;
[0024] Figure 5This is a partial exploded view of the clip-on earphone provided in this embodiment of the utility model;
[0025] Figure 6 This is a schematic diagram of the connection between the front shell and the connecting part provided in an embodiment of the present utility model.
[0026] The labels for the attached figures are as follows:
[0027] 100. Clip-on earphone; 110. Front shell; 112. Front shell end face; 120. Rear shell; 121. Rear shell end face; 122. Through hole; 1222. First conductive section; 1224. Second conductive section; 124. First shell; 1242. First limiting post; 1243. Second limiting post; 1244. First abutment platform; 1245. Second abutment platform; 1246. Base; 126. Second shell; 130. Connecting part; 132. Wire; 134. Memory wire; 135. 136. First end face; 137. First curved section; 138. Second curved section; 140. First circuit board; 142. Battery; 144. First connecting terminal; 146. First limiting hole; 148. First through hole; 149. Limiting groove; 150. Second circuit board; 152. Microphone; 153. Flexible circuit board; 154. Second connecting terminal; 156. Second limiting hole; 158. Flexible washer; 159. Solder pad; 1582. Second through hole; 160. Charging pin. Detailed Implementation
[0028] 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.
[0029] 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-generating module, a rear shell 120 with a battery 142, and a connecting part 130 connecting the front shell 110 and the rear shell 120. A first circuit board 140 and a second circuit board 150 are arranged in parallel inside the rear shell 120. The first circuit board 140 and the second circuit board 150 are electrically connected. The battery 142 is arranged on the first circuit board 140, and a microphone 152 is arranged on the second circuit board 150. The second circuit board 150 is located on one side of the width direction of the battery 142. A through hole 122 corresponding to the microphone 152 is provided on the rear shell 120.
[0030] Specifically, the front shell 110, as the front end of the earcup earphone 100, primarily houses the sound-generating module. The sound-generating module is responsible for converting electrical signals into sound signals and is a key component for the earphone's audio output. The rear shell 120 bears the important responsibility of providing power to the earcup earphone 100 and housing some circuit components. In this design, the rear shell 120 innovatively features parallel first circuit board 140 and second circuit board 150. This parallel arrangement fully utilizes the internal space of the rear shell 120, significantly improving space utilization compared to traditional cluttered layouts. The first circuit board 140 houses a battery 142, which provides power to the entire earphone system, ensuring the earcup earphone 100 functions properly. The second circuit board 150 houses a microphone 152, which is used to collect external sound signals for functions such as calls and voice command input. Placing the second circuit board 150 on one side of the width of the battery 142 further optimizes the utilization of the internal space of the rear shell 120, making the arrangement of various components more compact and rational. The through hole 122 on the back cover 120, which corresponds to the microphone 152, is to ensure that the microphone 152 can effectively collect external sounds and avoid the sound signal being weakened or distorted due to obstruction.
[0031] The ear-clip earphone 100 provided in this application embodiment fully utilizes the internal three-dimensional space of the rear shell 120 by arranging the first circuit board 140 and the second circuit board 150 in parallel within the rear shell 120, greatly improving space utilization. This helps reduce the overall size of the rear shell 120, making the ear-clip earphone 100 more compact and lightweight for the same battery 142 capacity. Furthermore, by placing the battery 142 on the first circuit board 140 and the microphone 152 on the second circuit board 150, and by keeping the microphone 152 away from the first circuit board 140 and rationally arranging their relative positions, signal transmission between various functional modules becomes more stable, reducing the possibility of signal interference. For example, the battery 142 may generate some electromagnetic interference during operation. By placing the microphone 152 and the battery 142 on different circuit boards and maintaining a reasonable distance, the impact of this interference on the quality of the sound signal collected by the microphone 152 can be effectively reduced, thereby improving the clarity of calls and voice command recognition. Since the second circuit board 150 mainly houses the microphone 152 and occupies less space, placing the second circuit board 150 on one side of the width direction of the battery 142 can improve the rationality of space utilization within the rear shell 120, reduce the volume of the rear shell 120, and thus improve the reliability of the connection with the ear.
[0032] like Figure 4As shown, a first connection terminal 144 is provided on the first circuit board 140, and a flexible circuit board 153 is connected to the second circuit board 150. A second connection terminal 154 is provided on the flexible circuit board 153. The first connection terminal 144 and the second connection terminal 154 can be plugged into each other.
[0033] Specifically, a convenient and reliable electrical connection structure is formed by the first connection terminal 144 on the first circuit board 140 and the second connection terminal 154 connected to the second circuit board 150 via the flexible circuit board 153. The flexible circuit board 153 is flexible and adaptable, allowing it to accommodate spatial differences between the first and second circuit boards 140 without affecting electrical connection performance. It also effectively prevents circuit damage caused by vibration or external forces during headphone use due to rigid connections. The first and second connection terminals 144 and 154 are connected by a plug-in joint, facilitating quick installation and disassembly during production and assembly. When the circuit board needs repair, replacement, or upgrade, workers can easily separate the two connection terminals without significantly affecting other components, greatly improving production and maintenance efficiency.
[0034] like Figure 5 As shown, the rear shell 120 includes a first shell 124 and a second shell 126 that are interlocked. The first shell 124 is provided with a plurality of first limiting posts 1242 and a plurality of second limiting posts 1243. The first shell 124 is also provided with a first abutment platform 1244 corresponding to the first limiting posts 1242 and a second abutment platform 1245 corresponding to the second limiting posts 1243. The first circuit board 140 is provided with a plurality of first limiting holes 146, which are inserted into the plurality of first limiting posts 1242 one by one, and the first circuit board 140 abuts against the first abutment platform 1244. The second circuit board 150 is provided with a plurality of second limiting holes 156, which are inserted into the plurality of second limiting posts 1243 one by one, and the second circuit board 150 abuts against the second abutment platform 1245.
[0035] Specifically, multiple first limiting holes 146 on the first circuit board 140 are inserted one-to-one with the first limiting posts 1242 inside the first housing 124, and the first circuit board 140 abuts against the first supporting platform 1244. This design allows the first circuit board 140 to be accurately positioned inside the first housing 124, preventing displacement of the circuit board due to vibration, shaking, or other reasons during use of the ear clip-on earphone 100. Similarly, multiple second limiting holes 156 on the second circuit board 150 are inserted one-to-one with the second limiting posts 1243, and the second circuit board 150 abuts against the second supporting platform 1245, thereby achieving stable fixation of the second circuit board 150 within the first housing 124 and maintaining a stable relative positional relationship between the first circuit board 140 and the second circuit board 150. Moreover, the above-mentioned design can resist various external forces that the ear clip headphones 100 may be subjected to, such as collisions and pulling, protecting the first circuit board 140, the second circuit board 150 and other components inside the ear clip headphones 100 from damage, extending the service life of the ear clip headphones 100, and also ensuring the normal use of the ear clip headphones 100 during exercise.
[0036] like Figure 1 , Figure 3 and Figure 4 As shown, the microphone 152 is disposed on the side of the second circuit board 150 away from the first circuit board 140. A flexible washer 158 is disposed on the side of the second circuit board 150 facing the first circuit board 140. A first through hole 148 is disposed on the first circuit board 140. The flexible washer 158 has a second through hole 1582. The first through hole 148, the second through hole 1582 and the through hole 122 are sequentially connected.
[0037] Specifically, the microphone 152 is positioned on the side of the second circuit board 150 opposite to the first circuit board 140, maximizing the separation of the microphone 152 from the first circuit board 140 and minimizing its impact, thus ensuring the microphone 152's anti-interference capability. Furthermore, the conductive channel formed by the first via 148, the second via 1582, and the through hole 122 minimizes sound signal attenuation and distortion during transmission. External sound can directly enter through the through hole 122, passing through the second via 1582 and the first via 148 to the microphone 152, ensuring the integrity and accuracy of the sound signal and improving the quality of sound acquisition by the microphone 152, resulting in clearer calls and voice command recognition. Simultaneously, the flexible gasket 158 provides excellent sealing and protection. It effectively prevents dust, moisture, and other impurities from entering the earphone through the through hole 122 of the rear shell 120, protecting the electronic components on the first and second circuit boards 140 and 150. In sports scenarios, headphones may come into contact with contaminants such as sweat and dust. The protective function of the flexible gasket 158 can greatly reduce the risk of these contaminants damaging the internal structure of the headphones, extend the service life of the headphones, and improve the reliability and stability of the product.
[0038] like Figure 3 and Figure 5 As shown, a base 1246 is provided inside the first housing 124. The through hole 122 includes a first conductive section 1222 and a second conductive section 1224 connected to each other. The first conductive section 1222 and the second conductive section 1224 are set at a preset angle. The first conductive section 1222 is located inside the base 1246, and the second conductive section 1224 is located on the first housing 124. The flexible washer 158 abuts against the end face of the base 1246.
[0039] Specifically, a base 1246 is provided within the first housing 124, and the through hole 122 consists of a first conductive section 1222 and a second conductive section 1224 connected to each other, with the two sections arranged at a preset angle. The first conductive section 1222 is located within the base 1246, and the second conductive section 1224 is located on the first housing 124. This design allows for greater flexibility in the shape and position of the through hole 122, enabling it to better adapt to the layout of the internal structure of the earphone. The flexible gasket 158 abuts against the end face of the base 1246, further enhancing the sealing effect. By designing the through hole 122 as a two-section structure with a certain angle, and combining it with the base 1246, it is possible to ensure smooth transmission of sound signals while better preventing external impurities from entering the earphone, and also optimizing the use of space inside the earphone.
[0040] like Figure 4 , Figure 5 and Figure 6As shown, the second circuit board 150 has multiple pads 159 on the side opposite to the first circuit board 140, and a wire 132 is passed through the connection part 130. The wire 132 includes multiple wire cores, and the multiple wire cores are soldered to the multiple pads 159 one by one.
[0041] Specifically, a stable and reliable electrical connection is established by soldering the wire cores of the conductor 132 to the corresponding pads 159 on the second circuit board 150. This connection method effectively reduces signal loss and interference during transmission, ensuring that sound signals, control signals, etc., can be accurately transmitted between various components of the earphone. For example, during audio signal transmission, a stable electrical connection ensures that the sound quality is not affected, avoiding noise, distortion, and other problems, providing users with a high-quality audio experience. In addition, multiple pads 159 are provided on the side of the second circuit board 150 opposite to the first circuit board 140, and these pads 159 serve as interfaces for electrical connections. The conductor 132, containing multiple wire cores, is threaded through the connection part 130, and each wire core is soldered to a corresponding pad 159 on the second circuit board 150. This connection method enables electrical signal transmission between the second circuit board 150 and other parts of the ear-clip earphone 100 (such as the sound module inside the front shell 110), ensuring the normal operation of the entire earphone system. The pad 159 is located on the side of the second circuit board 150 away from the first circuit board 140, which makes the connection process simpler and more convenient, and facilitates the routing of traces, avoiding the influence of the first circuit board 140.
[0042] like Figure 6 As shown, a memory steel wire 134 is also inserted inside the connecting part 130, and the two ends of the memory steel wire 134 extend out of the two ends of the connecting part 130 respectively.
[0043] Specifically, the presence of the memory wire 134 allows the clip-on earphones 100 to better adapt to the ear shapes of different users. Since each user's ear contour and size differ, a traditional fixed-shape connector 130 may not meet the wearing needs of all users. The memory wire 134, however, can deform to a certain extent according to the shape of the ear when the user wears the earphones, and then return to a near-original shape after being released, thus providing a more comfortable and snug wearing experience. Whether during exercise or daily use, this adaptive wearing method reduces the risk of the earphones falling out and improves wearing stability and reliability. Furthermore, based on the shape memory characteristics and high strength of the memory wire 134, the earphones can maintain good performance and appearance even after repeated wear and external force. The memory wire 134 can quickly return to its original shape after deformation, avoiding the problem of permanent deformation of the connector 130 due to long-term use, which would affect the wearing comfort and stability of the earphones. This improved durability allows consumers to enjoy a stable and comfortable user experience for a longer period after purchasing headphones, reducing the frequency of product replacements due to headphone damage, lowering user costs, and enhancing the product's competitiveness in the market.
[0044] like Figure 1 As shown, the connecting portion 130 includes a first end face 135 connected to the front shell 110 and a second end face 136 connected to the rear shell 120; the front shell 110 includes a front shell end face 112 connected to the connecting portion 130, and the rear shell 120 includes a rear shell end face 121 connected to the connecting portion 130; the area of the first end face 135 is smaller than the area of the front shell end face 112, and the area of the second end face 136 is smaller than the area of the rear shell end face 121.
[0045] Specifically, when one end of the connecting part 130 is connected to the front shell 110, the first end face 135 mates with the front shell end face 112; when the other end of the connecting part 130 is connected to the rear shell 120, the second end face 136 mates with the rear shell end face 121, to ensure a proper fit during connection. Furthermore, the area of the first end face 135 is smaller than the area of the front shell end face 112, and the area of the second end face 136 is smaller than the area of the rear shell end face 121. This facilitates easier connection of the connecting part 130 to both the front shell 110 and the rear shell 120, reduces connection difficulty, and also protects both ends of the connecting part 130.
[0046] 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 137 disposed in front of the ear and a second curved portion 138 disposed behind the ear; the first curved portion 137 connects to the second curved portion 138, and the curvature of the first curved portion 137 is less than the curvature of the second curved portion 138.
[0047] Specifically, the connection between the first curved section 137 and the second curved section 138 facilitates the clamping of the user's auricle, making it easier for the sound-generating module to align with the ear canal and ensuring effective sound propagation. Furthermore, the curvature of the first curved section 137 is less than that of the second curved section 138, allowing for a better fit to the shape of the auricle and improving comfort when clamping it.
[0048] In an optional embodiment of this application, the battery 142 is soldered to the first circuit board 140.
[0049] Specifically, soldering provides a tighter and more stable electrical connection than some other connection methods (such as plugging). During headphone use, especially in sports scenarios, headphones may be subjected to external forces such as vibration and shaking. Soldering effectively resists these external forces, avoiding problems such as poor contact and power outages caused by loose connections, and ensuring the stability of power transmission. This is crucial for the continuous and stable operation of headphones. Whether during long music playback or during calls and voice command operations, a stable power supply ensures the normal operation of various functional modules in the headphones, providing users with an uninterrupted audio experience. In addition, soldering is a relatively simple method, requiring no additional connection terminals or complex fixing structures. This allows for a more compact layout of other components on the first circuit board 140, further optimizing the internal space utilization of the headphones. By making reasonable use of the limited circuit board space, more functional modules or a larger capacity battery 142 can be integrated without increasing the overall size of the headphones, thereby improving the performance and battery life of the headphones.
[0050] like Figure 4 As shown, the edge of the first circuit board 140 is also provided with a limiting groove 149, and a charging pin 160 is provided at the limiting groove 149. The extension direction of the charging pin 160 is coplanar with the first circuit board 140 or at an obtuse angle. One end of the charging pin 160 is inserted into the limiting groove 149, and the other end of the charging pin 160 extends to the outer surface of the rear shell 120.
[0051] Specifically, a limiting groove 149 is provided along the edge of the first circuit board 140 to provide a precise positioning and installation position for the charging pin 160. The charging pin 160 is installed within the limiting groove 149, with one end connected to the charging circuit on the first circuit board 140 and the other end extending to the outer surface of the rear shell 120 for connection with an external charging device. The extension direction of the charging pin 160 is coplanar with or at an obtuse angle to the first circuit board 140. This design allows for flexible adjustment of the position and angle of the charging pin 160 according to the overall structure of the headphones and the usage scenario to meet different charging needs. In addition, the interaction between the charging pin 160 and the limiting groove 149 avoids the charging pin 160 being perpendicular to the first circuit board 140, which helps to further improve space utilization and ensure the compactness of the interior of the rear shell 120.
[0052] 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. This earphone kit has 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.
[0053] 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 part connecting the front shell and the rear shell are provided. A first circuit board and a second circuit board are provided inside the rear shell. The first circuit board and the second circuit board are electrically connected. The battery is provided on the first circuit board, and a microphone is provided on the second circuit board. The second circuit board is located on one side of the battery in the width direction. A through hole corresponding to the microphone is provided on the rear shell.
2. The ear clip-on earphone according to claim 1, characterized in that, The first circuit board is provided with a first connection terminal, and the second circuit board is connected to a flexible circuit board, which is provided with a second connection terminal. The first connection terminal and the second connection terminal can be plugged into each other.
3. The ear clip-on earphone according to claim 2, characterized in that, The rear shell includes a first shell and a second shell that are interlocked. The first shell has a plurality of first limiting posts and a plurality of second limiting posts. The first shell also has a first abutment platform corresponding to the first limiting posts and a second abutment platform corresponding to the second limiting posts. The first circuit board has a plurality of first limiting holes, which are inserted into the plurality of first limiting posts one by one, and the first circuit board abuts against the first abutment platform. The second circuit board has a plurality of second limiting holes, which are inserted into the plurality of second limiting posts one by one, and the second circuit board abuts against the second abutment platform.
4. The ear clip-on earphone according to claim 3, characterized in that, The microphone is disposed on the side of the second circuit board away from the first circuit board. A flexible gasket is disposed on the side of the second circuit board facing the first circuit board. A first through hole is disposed on the first circuit board. The flexible gasket has a second through hole. The first through hole, the second through hole and the through hole are sequentially connected.
5. The ear clip-on earphone according to claim 4, characterized in that, The first housing has a base, and the through 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 set at a preset angle, and the first conductive section is disposed in the base, the second conductive section is disposed on the first housing, and the flexible gasket abuts against the end face of the base.
6. The ear clip-on earphone according to any one of claims 1-5, characterized in that, The second circuit board has multiple pads on the side opposite to the first circuit board. A wire is threaded through the connection part. The wire includes multiple cores, and the multiple cores are soldered to the multiple pads one by one.
7. The ear clip-on earphone according to claim 6, characterized in that, The connecting part is also provided with a memory steel wire, and the two ends of the memory steel wire extend out of the two ends of the connecting part respectively.
8. The ear clip-on earphone according to any one of claims 1-5, 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.
9. The ear clip-on earphone according to any one of claims 1-5, 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.
10. The ear clip-on earphone according to any one of claims 1-5, characterized in that, The battery is soldered to the first circuit board.
11. The ear clip-on earphone according to any one of claims 1-5, characterized in that, The edge of the first circuit board is also provided with a limiting groove, and a charging pin is provided at the limiting groove. The extension direction of the charging pin is coplanar with the first circuit board or at an obtuse angle, and one end of the charging pin is inserted into the limiting groove, while the other end of the charging pin extends to the outer surface of the rear shell.
12. 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 1-11, wherein the ear clip-on earphone can be stored in the charging case for charging.