Novel bone conduction earphone waterproof structure
By employing waterproofing measures such as injection sealing, sealing gaskets, elastic sealing sheets, hydrophobic nano-coatings, moisture-absorbing boxes, and waterproof and breathable membranes on bone conduction headphones, the problem of decreased waterproof performance of bone conduction headphones has been solved, resulting in a longer service life and higher waterproof performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-25
- Publication Date
- 2026-04-07
AI Technical Summary
The existing waterproof structure of bone conduction headphones is too simple and cannot effectively resist the long-term erosion of sweat and rain, causing the waterproof performance to decline over time.
A comprehensive waterproofing approach is adopted, including injection sealing, sealing gaskets, elastic sealing sheets, hydrophobic nano-coatings, moisture-absorbing boxes, and waterproof and breathable membranes. Combined with the use of vulcanized silicone rubber, a multi-layer waterproof barrier is formed to enhance the waterproofness of the headphones.
It effectively resists the corrosion of the charging interface by sweat and rain, extends the service life of the headphones, and improves the waterproofness and sealing of the headphones.
Smart Images
Figure CN224097824U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of bone conduction headphone technology, specifically a novel waterproof structure for bone conduction headphones. Background Technology
[0002] Bone conduction headphones, as an innovative audio device, transmit sound through bone vibrations, enabling listening without inserting them into the ear. This unique sound generation principle gives them significant advantages in scenarios such as sports and commuting, avoiding the physical pressure on the ear canal caused by traditional in-ear headphones while maintaining awareness of ambient sounds, thus improving safety and comfort. With the development of consumer electronics technology, bone conduction headphones are increasingly widely used in outdoor sports, smart wearables, and other fields, and market demand continues to grow.
[0003] The structural design of existing bone conduction headphones typically needs to balance acoustic performance and wearing comfort, and waterproofing its core components such as the sound unit and circuit module is one of the technical challenges. Since bone conduction headphones may come into contact with liquids such as sweat and rain during use, traditional waterproofing methods often suffer from insufficient sealing reliability or affect acoustic vibration transmission. For example, some products use simple adhesive seals or sealing rings to protect the interface, but after long-term use, the adhesive is prone to aging and the sealing rings to deform, leading to a decrease in waterproofing performance. On the other hand, overly complex sealing structures may increase the weight of the device, hindering effective coupling between the vibration unit and the human skeleton, thus affecting sound quality.
[0004] However, most waterproof structures are too simple, using only ordinary sealing rings or coatings, which are difficult to effectively resist the long-term erosion of sweat and rainwater, causing the waterproof performance to decline significantly over time. Utility Model Content
[0005] The purpose of this application is to provide a novel waterproof structure for bone conduction headphones, in order to solve the problem that most of the waterproof structures mentioned above are too simple, using only ordinary sealing rings or coatings, which are difficult to effectively resist the long-term erosion of sweat and rainwater, resulting in a significant decrease in waterproof performance over time.
[0006] The technical solution adopted in this application is as follows: A novel waterproof structure for bone conduction headphones includes a bone conduction headphone shell body. A side groove is provided on the outer side of one end of the bone conduction headphone shell body. Several connecting pins are provided on one side surface of the bone conduction headphone shell body. A mounting frame is provided on one side surface of the bone conduction headphone shell body. A mounting groove is provided inside the mounting frame. Four adjacent magnetic pins are provided inside the mounting groove. Magnets are provided on both sides of the mounting groove. A groove corresponding to the magnetic pins is provided on the other side surface of the bone conduction headphone shell body. A rotating hole is provided on one side of the groove. A rotating shaft is rotatably connected inside the rotating hole. An elastic sealing sheet corresponding to the groove is provided at one end of the rotating shaft. Waterproof glue is injected into the mounting groove.
[0007] By adopting the above technical solutions and with the waterproof measures in place, the charging interface can be effectively protected from the erosion of liquids such as sweat and rain, thus extending the service life of the headphones.
[0008] As a further description of the above technical solution, a sealing gasket is attached to the surface of the side groove.
[0009] By adopting the above technical solution, the sealing and waterproofing of the gaps in the main body of the bone conduction headphone shell can be improved.
[0010] As a further description of the above technical solution, support blocks are provided at both ends of one side surface of the bone conduction headphone shell body, and a moisture-absorbing box is provided inside the support block.
[0011] By adopting the above technical solution, the support block can absorb moisture that enters the interior of the bone conduction headphone shell, reducing damage to electrical components and improving water resistance.
[0012] As a further description of the above technical solution, the outer surface of the bone conduction headphone shell is coated with a hydrophobic nano-coating.
[0013] By adopting the above technical solution, the coating utilizes a nanoscale microstructure to cause liquid to form water droplets that quickly roll off when in contact with the surface, greatly reducing the possibility of liquid adhesion and penetration.
[0014] As a further description of the above technical solution, a waterproof and breathable membrane is adhered to the surface of the groove.
[0015] By adopting the above technical solution, the membrane allows air molecules to pass through, balancing the internal and external air pressure, while effectively blocking water molecules from penetrating due to its tiny and uniform pore structure, further enhancing its waterproof performance.
[0016] As a further description of the above technical solution, the waterproof adhesive is made of vulcanized silicone rubber.
[0017] By adopting the above technical solution, it has good electrical insulation, water resistance and flexibility. After the glue cures, it can tightly fill the tiny gaps in the groove, forming the first waterproof barrier and effectively preventing the liquid from contacting the internal electrical components.
[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:
[0019] In this application, waterproof measures such as glue injection sealing, sealing gasket, elastic sealing sheet, hydrophobic nano coating, moisture-absorbing box and waterproof and breathable membrane are used to effectively resist the corrosion of the charging interface by sweat, rain and other liquids, thus extending the service life of the headphones. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the front structure of the bone conduction headphone shell in this application;
[0021] Figure 2 This is a schematic diagram of the back structure of the bone conduction headphone shell in this application;
[0022] Figure 3 This is a schematic diagram of the planar structure of the sealing gasket in this application;
[0023] Figure 4 This is a schematic diagram of the planar structure of the hydrophobic nanocoating in this application.
[0024] The markings in the diagram are: 1. Main body of bone conduction earphone shell; 2. Connecting pin; 3. Side groove; 4. Support block; 5. Moisture-absorbing box; 6. Magnetic pin; 7. Mounting slot; 8. Mounting frame; 9. Magnet; 10. Shaft; 11. Elastic sealing sheet; 12. Groove; 13. Rotating hole; 14. Sealing gasket; 15. Hydrophobic nano-coating. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0027] Example:
[0028] Reference Figure 1-4 A novel waterproof structure for bone conduction headphones includes a main body 1 of the bone conduction headphone shell. A side groove 3 is formed on the outer side of one end of the main body 1. Several connecting pins 2 are provided on one side surface of the main body 1. A mounting frame 8 is provided on one side surface of the main body 1. A mounting groove 7 is formed inside the mounting frame 8. Four adjacent magnetic pins 6 are provided inside the mounting groove 7. Magnets 9 are provided on both sides of the mounting groove 7. A groove 12 corresponding to the magnetic pins 6 is formed on the other side surface of the main body 1. A rotating hole 13 is formed on one side of the groove 12. A rotating shaft 10 is rotatably connected inside the rotating hole 13. An elastic sealing sheet 11 corresponding to the groove 12 is provided at one end of the rotating shaft 10. Waterproof glue is injected into the mounting groove 7. Under the above waterproof measures, it can effectively resist the erosion of the charging interface by sweat, rainwater, and other liquids, extending the service life of the headphones.
[0029] Reference Figure 1 and Figure 3 A sealing gasket 14 is attached to the surface of the side groove 3, which can improve the sealing and waterproofing of the gaps in the bone conduction headphone shell 1.
[0030] Reference Figure 1 Support blocks 4 are provided at both ends of one side surface of the bone conduction headphone shell body 1. A moisture-absorbing box 5 is provided inside the support block 4. Under the action of the support block 4, the moisture that enters the bone conduction headphone shell body 1 can be absorbed, reducing damage to electrical components and improving waterproofness.
[0031] Reference Figure 4 The outer surface of the bone conduction headphone shell 1 is coated with a hydrophobic nano-coating 15. This coating utilizes a nanoscale microstructure to cause liquids to form water droplets that quickly roll off when in contact with the surface, greatly reducing the possibility of liquid adhesion and penetration.
[0032] Reference Figure 2 The surface of the groove 12 is covered with a waterproof and breathable membrane. This membrane allows air molecules to pass through, balancing the internal and external air pressure. At the same time, with its tiny and uniform pore structure, it effectively blocks water molecules from penetrating, further enhancing the waterproof performance.
[0033] Reference Figure 1-2 The waterproof adhesive is made of vulcanized silicone rubber, which has good electrical insulation, water resistance and flexibility. After curing, the adhesive can tightly fill the tiny gaps in the groove, forming the first waterproof barrier and effectively preventing liquid from contacting the internal electrical components.
[0034] The implementation principle of the novel waterproof structure embodiment for bone conduction headphones in this application is as follows:
[0035] Four magnetic pins 6 and magnets 9 are accurately installed into the mounting groove 7 according to the design requirements, ensuring that the electrical connection between the magnetic pins 6 and the internal circuit of the headphones is accurate and that the magnets 9 are in the correct adsorption direction. The bone conduction headphone shell body 1 is then sealed and closed. Waterproof glue is then injected into the mounting groove 7, filling the entire mounting groove 7 and ensuring that the glue is evenly filled into the gaps. The glue is allowed to cure naturally at room temperature. A waterproof and breathable membrane is then attached to the surface of the groove 12, ensuring that the membrane is tightly attached to the surface of the groove 12 without bubbles or wrinkles. The rotating shaft 10 is installed into the inside of the rotating hole 13, so that the elastic sealing sheet 11 seals the groove 12. Finally, a hydrophobic nano coating 15 is evenly sprayed onto the outer surface of the bone conduction headphone shell body 1.
[0036] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel waterproof structure for bone conduction headphones, comprising a main body (1) of the bone conduction headphone shell, characterized in that: The outer side of one end of the bone conduction headphone shell body (1) is provided with a side groove (3). A number of connecting pins (2) are provided on one side surface of the bone conduction headphone shell body (1). A mounting frame (8) is provided on one side surface of the bone conduction headphone shell body (1). A mounting groove (7) is provided inside the mounting frame (8). Four adjacent magnetic pins (6) are provided inside the mounting groove (7). Magnets (9) are provided on both sides of the mounting groove (7). A groove (12) corresponding to the magnetic pins (6) is provided on the other side surface of the bone conduction headphone shell body (1). A rotating hole (13) is provided on one side of the groove (12). A rotating shaft (10) is rotatably connected inside the rotating hole (13). An elastic sealing sheet (11) corresponding to the groove (12) is provided at one end of the rotating shaft (10). Waterproof glue is injected into the mounting groove (7).
2. The novel waterproof structure for bone conduction headphones as described in claim 1, characterized in that: A sealing gasket (14) is attached to the surface of the side groove (3).
3. The novel waterproof structure for bone conduction headphones as described in claim 1, characterized in that: Support blocks (4) are provided at both ends of one side surface of the bone conduction headphone shell body (1), and a moisture-absorbing box (5) is provided inside the support block (4).
4. The novel waterproof structure for bone conduction headphones as described in claim 1, characterized in that: The outer surface of the bone conduction headphone housing (1) is coated with a hydrophobic nano-coating (15).
5. The novel waterproof structure for bone conduction headphones as described in claim 1, characterized in that: A waterproof and breathable membrane is attached to the surface of the groove (12).
6. The novel waterproof structure for bone conduction headphones as described in claim 1, characterized in that: The waterproof adhesive is made of vulcanized silicone rubber.