Waterproof bone conduction earphone
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN KEMI ELECTRONIC TECHNOLOGY CO LTD
- Filing Date
- 2025-09-09
- Publication Date
- 2026-08-07
AI Technical Summary
上述的密封方式的防水性能较差,已不能满足于骨传导耳机对于防水性能的要求
[0013]上述的防水骨传导耳机,发声模块包括喇叭底壳和喇叭壳上盖,喇叭壳上盖密封盖合在喇叭底壳上,机芯壳体、挂耳部和喇叭底壳一体成型。机芯壳体、挂耳部及喇叭底壳一体成型,提高后整体的防水密封性和方便注塑成型加工,提高生产效率。
Smart Images

Figure CN224610901U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of headphone technology, and in particular to a waterproof bone conduction headphone. Background Technology
[0002] Bone conduction headphones convert sound into vibrations of different frequencies, which are then transmitted through the human body. With the increasing popularity of bone conduction headphones, people are enjoying using them for activities such as running, exercising, and even diving. This places higher demands on the waterproof performance of bone conduction headphones. The sealing between the headband and the housing of the headphone mechanism is a key challenge in achieving waterproof performance. Current technology involves filling the connection point with sealant when the headband is inserted into the mechanism. However, this sealing method offers relatively poor waterproof performance and is no longer sufficient to meet the waterproof requirements of bone conduction headphones. Utility Model Content
[0003] The purpose of this invention is to provide a waterproof bone conduction headphone with a sealing ring groove and a sealing ring on the connector, so that the two ends of the rear hanging assembly can be inserted into the headphone mechanism through the connector, which has a better waterproof sealing effect and improves waterproof performance.
[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a waterproof bone conduction headphone, including a rear hook assembly and ear hook assemblies connected to both ends of the rear hook assembly. The ear hook assembly includes a headphone mechanism, an ear hook, and a sound-generating module. The headphone mechanism and the sound-generating module are connected through the ear hook. Both ends of the rear hook assembly are inserted into the tail end of the headphone mechanism. The tail end of the rear hook assembly is provided with a connector. The tail end of the headphone mechanism is provided with a connector hole. The connector is inserted into the connector hole. The outer wall surface of the connector is provided with a sealing ring groove, and a sealing ring is provided on the sealing ring groove.
[0005] This utility model adopts the above-mentioned technical solution. The rear-mounted component is inserted into the earphone mechanism through a connector. The connector fills the insertion hole of the earphone mechanism. A sealing groove and a sealing ring are provided on the connector. The sealing ring is fitted in the sealing groove and fits tightly against the hole wall of the insertion hole, thus achieving a sealed and waterproof connection between the rear-mounted component and the earphone mechanism. By providing a sealing groove and a sealing ring, the sealing ring is preferably an elastic sealing ring, such as a sealing rubber ring, a silicone sealing ring, or a plastic sealing ring. When the connector is inserted into the insertion hole, the sealing ring forms an interference fit with the inner wall of the insertion hole, effectively improving the sealing and waterproof performance.
[0006] The aforementioned waterproof bone conduction headphones have a pin inserted into the side wall of the connector hole, and a pin groove at the bottom of the connector. The pin is inserted into the pin groove of the connector from the side of the connector hole. By inserting the pin from the side of the connector hole and into the pin groove, the position of the connector is limited after it is inserted into the connector hole, preventing it from being pulled out axially from the connector hole, thus improving the firmness of the connection between the rear-mounted assembly and the headphone mechanism.
[0007] The aforementioned waterproof bone conduction headphones have a glue-concealing groove inside the headphone mechanism adjacent to the connector hole. After the connector is inserted into the connector hole, glue can be filled to ensure a firm connection between the connector and the connector hole and to achieve a seal through the glue. The glue-concealing groove is used to collect the glue and prevent it from entering the headphone mechanism and sticking to electronic components.
[0008] The aforementioned waterproof bone conduction headphones have a first partition and a second partition inside the headphone mechanism. The first partition, the second partition, and the bottom and side walls of the headphone mechanism together form a glue-concealing groove. The glue-concealing groove prevents glue from seeping into the mechanism during filling.
[0009] In the aforementioned waterproof bone conduction headphones, the first partition is positioned corresponding to the connector hole, which extends axially through the first partition. Because the connector hole extends through the first partition, the wire is not obstructed when protruding from it and can directly connect to the battery and electronic components inside the headphone mechanism, facilitating wiring.
[0010] The aforementioned waterproof bone conduction headphones feature a rear-hook assembly comprising an elastic metal wire and an elastic covering layer encased in the wire, with the connector fixed to both ends of the elastic covering layer. The connector and the elastic covering layer can be fixedly connected using a one-piece molding process, reducing manufacturing complexity and improving processing efficiency.
[0011] In the aforementioned waterproof bone conduction headphones, both ends of the elastic metal wire are integrally formed and inserted into the plug. The integral formation of the elastic metal wire further secures the plug and improves the structural strength of the connection between the rear-hook assembly and the headphone mechanism.
[0012] The aforementioned waterproof bone conduction headphones include a headphone mechanism comprising a mechanism housing and a mechanism side cover. The side opening of the mechanism housing has a sealing groove that matches the edge shape of the mechanism side cover, and the edge of the mechanism side cover is sealed and embedded in the sealing groove. This sealing of the edge of the mechanism side cover into the sealing groove ensures a waterproof seal at the connection points after the mechanism side cover is assembled onto the mechanism housing.
[0013] The aforementioned waterproof bone conduction headphones include a speaker base and a speaker cover as the sound module. The speaker cover is sealed onto the speaker base. The mechanism housing, ear hook, and speaker base are integrally molded. This integral molding improves the overall waterproof sealing and facilitates injection molding, thereby increasing production efficiency.
[0014] The beneficial effects achieved by this utility model are as follows: a plug is provided at the end of the rear-mounted component, a sealing ring groove is provided on the plug and surrounds the outer wall of the plug, and a sealing ring is provided in the sealing ring groove. When the rear-mounted component is inserted into the headphone mechanism, the sealing ring is tightly fitted to the inner wall of the plug hole through interference fit. Through the setting of the sealing ring groove and the sealing ring, the sealing and waterproof performance of the connection between the rear-mounted component and the headphone mechanism is effectively improved. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the structure of the rear-mounted component according to an embodiment of the present utility model; Figure 3 This is an exploded structural diagram of the rear-mounted component according to an embodiment of the present utility model; Figure 4 yes Figure 2 Enlarged view of the local structure at position A in the middle; Figure 5 This is a schematic diagram of the connector structure according to an embodiment of the present utility model; Figure 6 This is a schematic diagram of the ear hook assembly according to an embodiment of the present utility model; Figure 7 This is a side view of the mechanism housing according to an embodiment of the present utility model; Figure 8 This is an exploded view of the ear hook assembly according to an embodiment of the present invention; Figure 9 This is an exploded view of the ear hook assembly from another angle, according to an embodiment of this utility model.
[0016] Explanation of reference numerals in the attached drawings: Rear hook assembly 1, Plug connector 11, Elastic metal wire 12, Elastic coating 13, Sealing ring groove 111, Sealing ring 112, Pin groove 113, Ear hook assembly 2, Earphone mechanism 21, Ear hook 22, Sound module 23, Plug hole 24, Pin 25, Glue groove 26, Mechanism housing 211, Mechanism side cover 212, Sealing groove 213, Circuit board 214, Magnetic magnet 215, Charging pin 216, Button 217, Microphone 218, Battery 219, Wiring groove 221, Silicone coating 222, Speaker bottom shell 231, Speaker shell top cover 232, Vibrator 233, First partition 261, Second partition 262. Detailed Implementation
[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0018] Reference Figures 1 to 9As shown, a waterproof bone conduction headphone includes a rear hook assembly 1 and ear hook assemblies 2 connected to both ends of the rear hook assembly 1. The ear hook assembly 2 includes a headphone mechanism 21, ear hooks 22, and a sound-generating module 23. The headphone mechanism 21 and the sound-generating module 23 are connected via the ear hooks 22. Both ends of the rear hook assembly 1 are inserted into the tail end of the headphone mechanism 21. The tail end of the rear hook assembly 1 is provided with a connector 11, and the tail end of the headphone mechanism 21 is provided with a connector hole 24. The connector 11 is inserted into the connector hole 24. The outer wall surface of the connector 11 is provided with a sealing ring groove 111, and a sealing ring 112 is provided on the sealing ring groove 111. The rear hook assembly 1 is connected to the headphone mechanism 21 via the connector 11, ensuring a secure connection between the rear hook assembly 1 and the headphone mechanism 21. A sealing ring groove 111 is provided on the outer wall surface of the connector 11, and a sealing ring 112 is provided. The sealing ring 112 is arranged around the sealing ring groove 111. When the connector 11 is inserted into the insertion hole 24, the sealing ring 112 squeezes the sealing ring groove 111 and the hole wall of the insertion hole 24, which achieves a good sealing effect.
[0019] A pin 25 is inserted into the side wall of the connector hole 24, and a pin groove 113 is provided at the bottom of the connector 11. The pin 25 is inserted into the pin groove 113 of the connector 11 from the side of the connector hole 24. The pin 25 is inserted into the pin groove 113 of the connector 11, so that the connector 11 will not be pulled out of the connector hole 24 after being inserted into it, thereby improving the structural strength of the rear-hook assembly 1 connecting to the headphone mechanism 21. The pin groove 113 is U-shaped, and when the pin 25 is inserted into the pin groove 113, the pin 25 is positioned on the groove wall of the U-shaped pin groove 113. In other embodiments, the pin groove 113 can also be configured as a pin hole, into which the pin 25 can be inserted to limit the position of the connector 11 after it is inserted into the connector hole 24.
[0020] Furthermore, a glue-concealing groove 26 is provided inside the earphone mechanism 21 adjacent to the plug hole 24. The earphone mechanism 21 contains a first partition 261 and a second partition 262, which, together with the bottom and side walls of the earphone mechanism 21, form the glue-concealing groove 26. The first partition 261 corresponds to the plug hole 24, and the plug hole 24 passes through the first partition 261 axially. When the plug 11 is inserted into the plug hole 24, excess glue is collected and filled in the glue-concealing groove 26 by applying glue, further improving the firmness of the connection between the rear-mounted assembly 1 and the earphone mechanism 21, as well as the sealing and waterproofing performance.
[0021] The rear mounting assembly 1 includes an elastic metal wire 12 and an elastic cover 13 wrapped around the elastic metal wire 12, with the connector 11 fixed to both ends of the elastic cover 13.
[0022] In this embodiment, both ends of the elastic metal wire 12 are integrally formed inside the connector 11.
[0023] The headphone mechanism 21 includes a mechanism housing 211 and a mechanism side cover 212. The side opening of the mechanism housing 211 is provided with a sealing groove 213 that matches the edge shape of the mechanism side cover 212. The edge of the mechanism side cover 212 is sealed and embedded in the sealing groove 213.
[0024] The sound-generating module 23 includes a speaker base shell 231 and a speaker shell cover 232. The speaker shell cover 232 is sealed and closed on the speaker base shell 231. The mechanism shell 211, the ear hook part 22 and the speaker base shell 231 are integrally formed.
[0025] The sound-generating module 23 also includes a vibrator 233, which is disposed between the speaker bottom shell 231 and the speaker shell top cover 232. One of the core housings 211 houses a battery 219, and the other core housing 211 houses a circuit board 214, a magnetic magnet 215, a charging pin 216, a button 217, and a microphone 218. The magnetic magnet 215 is used to attract the core housing 211 into the charging device and to keep the charging pin 216 in close contact with the charging connector of the charging device. The button 217 is disposed on the outer shell of the core housing 211, and the microphone 218 is used to pick up the user's voice to realize the call function.
[0026] The ear hook 22 is adapted to the shape of the ear. The sound module 23 and the earphone mechanism 21 are located at opposite ends of the ear hook 22. The sound module 23 is attached to the user's skin. A wire channel 221 matching the shape of the ear hook 22 is provided on the surface of the ear hook 22, and a silicone coating 222 is provided on the wire channel 221.
[0027] In a specific implementation of this invention, the elastic metal wire 12 is first placed in a mold, and connectors 11 are injection molded at both ends of the elastic metal wire 12. Then, an elastic coating 13 is injection molded on the surface of the elastic metal wire 12 and the connectors 11. During casting, wires are threaded through the elastic coating 13 to connect the battery 219 and circuit board 214 inside the core housing 211. The rear-hook assembly 1 is then inserted into the earphone core 21, with the connector 11 inserted into the connector hole 24. A pin 25 is then inserted into the side of the connector hole 24, and the pin 25 is inserted into the pin slot 113 of the connector 11, limiting the position of the connector 11 so that it cannot be pulled out of the connector hole 24. Further, glue can be filled into the connector hole 24, and when the glue solidifies, it securely connects the rear-hook assembly 1 to the earphone core 21. The filled glue flows into and is contained in the glue reservoir 26.
[0028] Circuit board 214 is housed inside the main housing 211, and battery 219 is housed inside another main housing 211, connected by wires. Vibrator 233 is connected to circuit board 214 by wires. Battery 219 provides power for the headset. When button 217 activates the headset, circuit board 214 drives vibrator 233 to vibrate and produce sound, which is simultaneously picked up by microphone 218, enabling call functionality.
[0029] This utility model improves the sealing and waterproofing effect of the connection between the rear hanging assembly 1 and the headphone mechanism 21 by setting a sealing ring groove 111 and a sealing ring 112 in the connector 11. It can achieve better waterproofing without one-piece molding, and meets the needs of many applications with high waterproofing requirements.
[0030] In summary, this utility model has been manufactured into actual samples as described in the specification and figures, and has undergone multiple use tests. The results of these tests demonstrate that this utility model can achieve its intended purpose, and its practical value is undeniable. The embodiments described above are merely illustrative examples of this utility model and are not intended to limit it in any way. Any person skilled in the art who makes partial modifications or alterations to the technical content disclosed in this utility model without departing from its technical features shall also fall within the scope of this utility model's technical features.
Claims
1. A waterproof bone conduction headphone, comprising a rear hook assembly (1) and ear hook assemblies (2) connected to both ends of the rear hook assembly (1), wherein the ear hook assembly (2) comprises a headphone mechanism (21), an ear hook (22), and a sound-generating module (23), wherein the headphone mechanism (21) and the sound-generating module (23) are connected via the ear hook (22), and both ends of the rear hook assembly (1) are inserted into the tail end of the headphone mechanism (21), characterized in that: The end of the rear-mounted assembly (1) is provided with a connector (11), and the tail end of the earphone mechanism (21) is provided with a plug hole (24). The connector (11) is inserted into the plug hole (24). The outer wall surface of the connector (11) is provided with a sealing ring groove (111), and a sealing ring (112) is provided on the sealing ring groove (111).
2. The waterproof bone conduction headphones according to claim 1, characterized in that: A pin (25) is inserted into the side wall of the plug hole (24), and a pin groove (113) is provided at the bottom of the plug connector (11). The pin (25) is inserted into the pin groove (113) of the plug connector (11) from the side of the plug hole (24).
3. The waterproof bone conduction headphones according to claim 2, characterized in that: The earphone mechanism (21) has a glue-concealing groove (26) located adjacent to the plug hole (24).
4. The waterproof bone conduction headphones according to claim 3, characterized in that: The earphone mechanism (21) is provided with a first partition (261) and a second partition (262) inside. The first partition (261), the second partition (262), and the bottom and side walls of the earphone mechanism (21) form the glue-containing groove (26).
5. The waterproof bone conduction headphones according to claim 4, characterized in that: The first partition (261) is provided with a corresponding insertion hole (24), and the insertion hole (24) passes through the first partition (261) axially.
6. The waterproof bone conduction headphones according to claim 1, characterized in that: The rear-mounted assembly (1) includes an elastic metal wire (12) and an elastic cover (13) wrapped around the elastic metal wire (12), and the connector (11) is fixed to both ends of the elastic cover (13).
7. The waterproof bone conduction headphones according to claim 6, characterized in that: The two ends of the elastic metal wire (12) are respectively inserted into the plug (11) and integrally formed.
8. The waterproof bone conduction headphones according to claim 1, characterized in that: The headphone mechanism (21) includes a mechanism housing (211) and a mechanism side cover (212). The side opening of the mechanism housing (211) is provided with a sealing groove (213) that matches the edge shape of the mechanism side cover (212). The edge of the mechanism side cover (212) is sealed and embedded in the sealing groove (213).
9. The waterproof bone conduction headphones according to claim 8, characterized in that: The sound-generating module (23) includes a speaker bottom shell (231) and a speaker top cover (232). The speaker top cover (232) is sealed and closed on the speaker bottom shell (231). The core housing (211), the ear hook (22) and the speaker bottom shell (231) are integrally formed.