Bone conduction sounding device and bone conduction earphone

Abstract

The bone conduction sound production device comprises a shell, a soft rubber piece, an extension part and a sound production assembly, the shell is provided with a first containing cavity with an upward opening, the soft rubber piece is arranged at the opening of the first containing cavity, the extension part is arranged on the side, close to the first containing cavity, of the soft rubber piece, and the sound production assembly is arranged on the extension part. The extension part and the soft rubber part are matched to define a second containing cavity with a downward opening, the extension part is located in the first containing cavity, the outer surface of the extension part is in sealing fit with the side wall of the first containing cavity, the bottom of the extension part is connected with the bottom of the first containing cavity and used for fixing the extension part, and a sound production assembly is arranged in the second containing cavity; by arranging the sound production assembly in the middle of the extension part, the sound production assembly can be effectively isolated from the shell, so that vibration produced by the sound production assembly is effectively transmitted to the soft rubber piece, and the vibration is prevented from being transmitted to the shell to reduce the vibration transmission efficiency and cause sound leakage.

Description

Technical Field

[0001] This utility model relates to the field of bone conduction headphone technology, specifically to a bone conduction sound generating device and bone conduction headphones. Background Technology

[0002] Currently, bone conduction headphones typically feature a sound-generating device on each side. Their core structure usually consists of a shell, silicone contacts, and a vibrating assembly. Specifically, the vibrating assembly is housed inside the shell and sealed with silicone contacts to form a complete sound-generating device. The silicone contacts are the parts that come into contact with the human body and are used to improve comfort. This design aims to transmit sound to the human auditory system via bone conduction through the vibration of the vibrating assembly.

[0003] However, existing bone conduction headphone sound-generating devices have certain technical shortcomings. Most current vibration components are placed directly inside the housing, in direct contact with it. When the vibrating element operates, the vibrational energy it generates acts directly on the housing. Because the housing and external connectors are integrated, this structure causes the vibrational energy to disperse among the housing and external connectors, resulting in a significant loss of vibrational energy that should be effectively transmitted to the body, thus reducing the efficiency of vibration transmission to the body.

[0004] Therefore, existing technologies still need to be improved and developed. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a bone conduction sound generating device and bone conduction headphones, which aims to solve the problem that the vibration component of the sound generating device of bone conduction headphones is in direct contact with the shell, resulting in vibration energy loss and reduced vibration transmission efficiency.

[0006] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0007] A bone conduction sound generating device, comprising:

[0008] The housing has an upward-facing first receiving cavity;

[0009] A soft rubber component is disposed at the opening of the first receiving cavity;

[0010] An extension is disposed on the side of the soft rubber part near the first receiving cavity; the extension cooperates with the soft rubber part to form a second receiving cavity with the opening facing downward; the extension is located inside the first receiving cavity and is sealed to the side wall of the first receiving cavity, and the bottom of the extension is connected to the bottom of the first receiving cavity;

[0011] The sound-generating component is disposed inside the second receiving cavity.

[0012] Furthermore, an annular baffle is provided at the bottom of the first receiving cavity, and the end of the extension away from the soft rubber part is connected to the annular baffle.

[0013] Furthermore, the inner wall of the extension is provided with a step, the bottom of the sound-generating component is arranged in a conformal manner or abutting against the step, the sound-generating component cooperates with the inner wall of the extension, and the step is connected to or spaced apart from the annular baffle.

[0014] Furthermore, the top of the annular baffle is provided with a continuous annular groove or multiple non-continuous arc-shaped grooves, and an adhesive is provided in the annular groove or multiple arc-shaped grooves.

[0015] Furthermore, the outer peripheral surface of the soft rubber part is provided with an arc-shaped transition surface, the height of which gradually decreases from the center of the soft rubber part outward to form an arc-shaped surface.

[0016] Furthermore, the outer surface of the soft rubber component is provided with at least one annular stop and / or a mating step, and the top of the housing is provided with a mating surface. The annular stop and / or the mating step respectively mate with the mating surface so that the soft rubber component and the housing are sealed together.

[0017] Furthermore, the bottom wall of the soft rubber component is provided with continuous raised ridges or multiple non-continuous raised ridges, and the sound-generating component is located within the continuous raised ridges or multiple non-continuous raised ridges.

[0018] Furthermore, the bottom of the housing is closed, and an elastic isolation pad is provided in the first receiving cavity. One side of the elastic isolation pad abuts against the bottom wall of the first receiving cavity, and the other side abuts against the bottom wall of the sound-generating component and / or the step.

[0019] Furthermore, the bottom of the housing is provided with a groove, and a bottom cover is provided in the groove. The bottom cover is connected to the bottom wall of the annular baffle. An elastic isolation pad is provided in the groove. One side of the elastic isolation pad abuts against the bottom cover, and the other side abuts against the sound-generating component and / or the step. The bottom cover is a soft part, a hard part, or a hard part with a soft part coated with rubber.

[0020] Furthermore, a circuit board is provided between the bottom cover and the annular baffle. One side of the elastic isolation pad abuts against the circuit board, and the other side abuts against the sound-generating component and / or the step. A first button is provided on the bottom cover, and the first button is electrically connected to the circuit board.

[0021] A bone conduction headphone, comprising the aforementioned bone conduction sound generating device, further comprising:

[0022] Two first structural components are respectively disposed on the two bone conduction sound generating devices; the first structural component is provided with an opening groove; and the end of the first structural component near the bone conduction sound generating device is provided with an ear hook.

[0023] Two second structural components are respectively disposed on two first structural components; the second structural components include an integral or independent first corresponding component and second corresponding component;

[0024] A receiving portion is disposed on the first structural member and / or the second corresponding member;

[0025] An electronic component is disposed within the receiving portion; the electronic component is electrically connected to the bone conduction sound generating device.

[0026] A third structural component is disposed between the two first structural components or the two second structural components, and is connected to the two first structural components or the two second structural components respectively; the third structural component has wires inside, and is connected to the electronic components in the two receiving portions respectively.

[0027] Furthermore, it also includes:

[0028] At least one detection component is disposed within the bone conduction sound-generating device or within the cavity enclosed by the first structural member and the second structural member, for detecting the wearing status of the bone conduction headphones.

[0029] Furthermore, it also includes:

[0030] A button assembly is disposed on the first structural member and / or the second structural member;

[0031] The first structural member and / or the second structural member are provided with key holes; the key assembly is located in the key holes and protrudes from the outer surface of the first structural member and / or the second structural member, and the key assembly corresponds to the electronic component.

[0032] Furthermore, the surface of the button assembly is provided with at least one continuous annular sealing stop, which cooperates with the inner wall of the first structural member and / or the second structural member.

[0033] Furthermore, one end of the first structural member is provided with a full hole, or both the first structural member and the second structural member are provided with half holes at the same end. The third structural member is provided with a shape memory metal strip inside. Both ends of the shape memory metal strip extend out of the third structural member and form an irregularly shaped fixing structure. Both ends of the third structural member are respectively inserted into the full hole or the half hole. The irregularly shaped fixing structure is connected to the first structural member and / or the second structural member.

[0034] Compared with the prior art, the beneficial effects of this utility model are:

[0035] In this invention, the housing has a first receiving cavity with an upward opening. A soft rubber component is provided at the opening of the first receiving cavity. An extension is provided on the side of the soft rubber component near the first receiving cavity. The extension and the soft rubber component cooperate to form a second receiving cavity with a downward opening. The extension is located inside the first receiving cavity. The outer surface of the extension is sealed to the side wall of the first receiving cavity. The bottom of the extension is connected to the bottom of the first receiving cavity for fixing the extension. A sound-generating component is provided inside the second receiving cavity. By placing the sound-generating component in the middle of the extension, the sound-generating component can be effectively isolated from the housing, thereby allowing the vibration emitted by the sound-generating component to be effectively transmitted to the soft rubber component, avoiding transmission to the housing, reducing vibration transmission efficiency, and causing sound leakage. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the bone conduction sound generation device of this utility model.

[0037] Figure 2 This is a cross-sectional view of the shell structure of this utility model.

[0038] Figure 3 This is a schematic diagram of the first type of encapsulation of the extension part and the housing of this utility model.

[0039] Figure 4 This is a schematic diagram of the second type of encapsulation of the extension part and the shell of this utility model.

[0040] Figure 5 This is a schematic diagram of the structure of the first and second receiving cavities of this utility model.

[0041] Figure 6 This is a schematic diagram of the bone conduction headphone structure of this utility model.

[0042] Figure 7 This is a schematic diagram of the first charging interface for the bone conduction headphones of this utility model.

[0043] Figure 8 This is a schematic diagram of the second charging interface for the bone conduction headphones of this utility model.

[0044] Figure 9This is a schematic diagram of the second button structure of this utility model.

[0045] Figure 10 This is a cross-sectional view of the rigid component and the silicone sleeve for the button in this utility model.

[0046] The numbers in the diagram represent: 1. Shell; 11. Annular baffle; 12. Annular groove; 13. Mating surface; 14. Elastic isolation pad; 15. Groove; 16. Bottom cover; 17. Circuit board; 18. First button; 19. First receiving cavity; 2. Soft rubber part; 21. Arc-shaped transition surface; 22. Annular stop; 23. Protruding bone position; 24. Second receiving cavity; 3. Extension part; 31. Step; 4. Sound generating component; 41. Bone conduction transducer; 42. Vibration transducer; 5. First structural component; 6. Second structural component; 7. Third structural component; 8. Detection component; 9. Button assembly; 91. Rigid component; 92. Button covering layer; 93. Button covering protrusion; 94. Annular sealing stop; 95. Rigid transmission component. Detailed Implementation

[0047] To make the objectives, technical solutions, and effects of this utility model clearer and more explicit, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0048] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0050] Currently, most headphone vibration components are placed directly inside the housing 1, in direct contact with it. When the vibration component is working, the vibration energy it generates acts directly on the housing 1. Because the housing 1 is integrated with the external connectors, this structure causes the vibration energy to be dispersed to both the housing 1 and the external connectors, resulting in a significant loss of vibration energy that should have been effectively transmitted to the human body.

[0051] This not only affects the sound quality of bone conduction headphones, but may also require users to increase the volume during use, increasing power consumption. Furthermore, excessive vibration may potentially damage the housing 1, shortening the headphones' lifespan. Therefore, optimizing the connection between the vibration component and the housing 1 to reduce vibration energy loss has become one of the key technical issues for improving the performance of bone conduction headphones.

[0052] In view of the shortcomings of the prior art, this embodiment provides a bone conduction sound generating device and a bone conduction headphone, which can be referred to as follows:

[0053] As attached Figure 1 Appendix Figure 2 and attached Figure 5 As shown, a bone conduction sound-generating device includes a housing 1, a soft rubber component 2, an extension portion 3, and a sound-generating component 4. The housing 1 has a first receiving cavity 19 with an upward opening. A soft rubber component 2 is provided at the opening of the first receiving cavity 19 to cover the opening of the first receiving cavity 19, and the soft rubber component 2 protrudes from the surface of the housing 1 for contact with human skin. An extension portion 3 is provided on the side of the soft rubber component 2 near the first receiving cavity 19. The extension portion 3 is arranged in a ring shape and, together with the bottom wall of the soft rubber component 2, forms a second receiving cavity 24 with a downward opening. The extension portion 3 is located inside the first receiving cavity 19, and the outer surface of the extension portion 3 is sealed to the side wall of the first receiving cavity 19. The bottom of the extension portion 3 is connected to the bottom of the first receiving cavity 19 to fix the soft rubber component 2 to the housing 1. The sound-generating component 4 is provided inside the second receiving cavity 24. The sound-generating component 4 is used to generate vibrations, which are applied to the skull of the human body through the soft rubber component 2 and transmitted to the inner ear.

[0054] The housing 1 is made of rigid plastic, while the soft plastic part 2 is made of silicone, rubber, or soft engineering plastics, such as TPU (Thermoplastic Urethane), TPE (Thermoplastic Elastomer), and TPR (Thermoplastic Rubber). The housing 1 is cylindrical or drum-shaped, with an opening at the top and a first receiving cavity 19 formed inside. The inner wall of the first receiving cavity 19 is vertical to facilitate its cooperation with the vertically positioned extension part 3. The soft plastic part 2 and the extension part 3 are made of the same material, silicone, to improve the comfort of the sound-generating device in contact with the human body.

[0055] The sound-generating component 4 includes a bone conduction transducer 41 and a vibration transducer 42. Both the bone conduction transducer 41 and the vibration transducer 42 are located within the second receiving cavity 24, with the vibration transducer 42 abutting against the bottom wall of the soft rubber part 2. The bone conduction transducer 41 is located at the bottom of the vibration transducer 42 and connected to it. The abutting method between the vibration transducer 42 and the bottom wall of the soft rubber part 2 ensures that vibrations can be smoothly transmitted from the vibration transducer 42 to the soft rubber part 2 in contact with the human body, thereby conducting sound through the human skeleton. Simultaneously, the vibration transducer 42 and the bone conduction transducer 41 are located within the same second receiving cavity 24. This arrangement allows the vibrations generated by the transducer to be transmitted to the vibration transducer 42 quickly, stably, and efficiently. During vibration transmission, the vibration transducer 42 not only distributes the vibrations evenly but also enhances the vibration effect, thereby improving the efficiency and quality of sound transmission.

[0056] Furthermore, the vibration transmission plate 42 and the bone conduction transducer 41 can be installed as an integral unit or installed separately and then connected.

[0057] In this embodiment, the sound-generating component 4 is bonded to the bottom wall of the soft rubber part 2 by the vibration transmission plate 42; the sound-generating component 4 is arranged at intervals with the extension portion 3 on the soft rubber part 2 to form a cavity around the sound-generating component 4. Through the above structure, the vibration of the sound-generating component is effectively prevented from being transmitted to the shell, the vibration transmission efficiency is improved, and the drop resistance and impact resistance of the sound-generating component are improved.

[0058] In the structural design of the bone conduction sound generation device, the sound generation component 4 is placed in the middle of the extension part 3. By constructing a physical isolation space, its direct contact with the shell 1 can be reduced, cutting off the path of vibration energy transmission to the shell 1. This allows the vibration generated by the bone conduction transducer 41 and the vibration transmission plate 42 to be preferentially and efficiently transmitted to the soft rubber part 2, avoiding transmission to the shell 1, which would reduce vibration transmission efficiency and cause sound leakage. This not only improves sound transmission efficiency and sound quality purity, but also enhances structural stability, extends product lifespan, and reduces noise interference, bringing users a clearer, more stable, and higher-quality listening experience.

[0059] In this embodiment, the top periphery of the soft rubber part 2 has an extended portion 3 protruding. The protruding portion of the soft rubber part 2 overlaps or is bonded to the annular boss of the opening of the housing 1, thereby blocking the opening of the first receiving cavity 19 and sealing it to prevent water or dust from entering the first receiving cavity 19.

[0060] One embodiment of this application is shown in the appendix. Figure 1 and attached Figure 2 As shown, an annular baffle 11 is provided on the bottom of the first receiving cavity 19, and the end of the extension 3 away from the soft rubber part 2 is connected to the annular baffle 11.

[0061] The connection between the annular baffle 11 and the extension 3 provides an additional support structure for the entire sound-generating assembly 4 and the soft rubber part 2. This effectively disperses external forces from different directions during use, preventing loosening or misalignment between the soft rubber part 2, the extension 3, and the housing 1 due to external forces. This further strengthens the overall stability of the sound-generating device and seals the first and second accommodating cavities 19 and 24, improving waterproofing. Simultaneously, the annular baffle 11 acts as a limiting and guiding element. Combined with the isolation design of the extension 3 for the sound-generating assembly 4, it further prevents vibration energy from being transmitted to the bottom of the housing 1, ensuring that vibration is transmitted more concentratedly and efficiently to the human skull via the soft rubber part 2 along a preset path. Furthermore, in terms of assembly, the connection point between the annular baffle 11 and the extension 3 can serve as an assembly positioning benchmark, facilitating quick and accurate installation of the extension 3 and the soft rubber part 2 during production. This improves assembly efficiency and product consistency, reduces product performance differences caused by assembly errors, and has a positive impact on improving product quality and production efficiency.

[0062] In this embodiment, as shown in the appendix Figure 1 As shown, a step 31 is provided on the inner wall of the extension 3, and the bottom of the sound-generating component 4 is arranged in a conformal manner or in contact with the step 31, and is located in the second receiving cavity 24.

[0063] Preferably, the sound-generating component 4 and the step 31 are arranged in a contour-following manner, which makes installation more convenient.

[0064] Specifically, a step 31 is provided on the inner wall of the extension 3. The step 31 extends inward from the inner wall of the extension 3, thereby forming a limiting member at the opening of the second receiving cavity 24, and leaving an opening in the middle for inserting the sound-generating component 4. The bottom of the sound-generating component 4 can be set on the step 31 to provide stable support for the sound-generating component 4 and improve the stability of the sound-generating component 4. At the same time, the step 31 is connected to or spaced apart from the annular baffle 11. When the step 31 is connected to the annular baffle 11, the contact area between the extension 3 and the annular baffle 11 can be increased, which can not only increase the connection stability between the extension 3 and the annular baffle 11, but also improve the product's anti-drop and vibration performance, improve the product's vibration transmission efficiency, and reduce sound leakage. When the step 31 and the annular baffle 11 are spaced apart, the vibration of the sound-generating component 4 can be prevented from being transmitted to the annular baffle 11 and the housing 1, thereby improving the vibration transmission efficiency and reducing sound leakage, and also improving the product's anti-drop performance.

[0065] Furthermore, the soft rubber part 2, the extension part 3, and the step 31 are arranged as a single unit.

[0066] Furthermore, the sidewall of the bone conduction transducer 41 and the inner wall of the extension 3 are conformally fitted, with the two being in a gap fit or zero fit. The inner wall of the extension 3 extends in an arc shape towards the middle to facilitate the limiting of the bone conduction transducer 41.

[0067] In this embodiment, as shown in the appendix Figure 3 As shown, the top of the annular baffle 11 is provided with a continuous annular groove 12 or multiple non-continuous arc-shaped grooves, and an adhesive is provided in the annular groove 12 or multiple arc-shaped grooves.

[0068] The annular groove 12 or multiple arc-shaped grooves provide precise space for adhesive injection. The groove structure allows the adhesive to form a stable bond during curing. The adhesive force and the mechanical limiting effect of the annular groove 12 or multiple arc-shaped grooves provide double protection for the connection strength between the extension section 3 step 31 and the annular baffle 11. Compared to a planar connection, this structure with annular grooves 12 or multiple arc-shaped grooves effectively prevents relative sliding or misalignment between the extension section 3 and the annular baffle 11 under stress, making the connection between the bottom step 31 of the extension section 3 and the annular baffle 11 more robust and reliable. Simultaneously, the presence of annular grooves 12 or multiple arc-shaped grooves facilitates control over the amount and distribution of adhesive, ensuring uniform filling of the connection area. This not only improves connection stability but also prevents adhesive overflow from affecting the product's appearance and internal structure. Furthermore, during product manufacturing, the annular grooves 12 or multiple arc-shaped grooves can serve as assembly positioning markers, helping workers quickly and accurately align and bond the extension section 3 and the annular baffle 11, improving assembly efficiency and product consistency.

[0069] In this embodiment, the annular groove 12 or multiple arc-shaped grooves can be trapezoidal grooves, conical grooves, square grooves, arc-shaped grooves, triangular grooves or semi-circular grooves, etc.

[0070] Furthermore, an adhesive groove may also be provided on the side wall of the first receiving cavity 19 for placing adhesive, so that the side wall of the first receiving cavity 19 can be bonded and fixed to the outer surface of the extension 3; at the same time, when an adhesive groove is provided on the side wall of the first receiving cavity 19, the annular groove 12 or multiple arc-shaped grooves can be eliminated.

[0071] One embodiment of this application is shown in the appendix. Figure 1 As shown, the outer peripheral surface of the soft rubber part 2 is provided with an arc-shaped transition surface 21.

[0072] As a key component of the bone conduction sound device that comes into direct contact with the human body, the soft rubber part 2 has an arc-shaped transition surface 21 on its outer periphery, which is of great significance in terms of acoustic performance and wearing experience. This arc-shaped transition surface 21 naturally and smoothly outlines the curved contour of the surface.

[0073] Among them, the area of ​​the vibration transmission plate 42 projected onto the outer surface of the soft rubber part 2 along the axial direction of the sound generating component 4 is the vibration transmission area of ​​the soft rubber part 2. The vibration transmission area of ​​the soft rubber part 2 is a plane, and the arc-shaped transition surface 21 gradually decreases along the outer edge of the vibration transmission area of ​​the soft rubber part 2 towards the direction away from the center of the soft rubber part 2 to form an arc-shaped surface.

[0074] From an acoustic perspective, this design makes the vibration transmission area at the top of the soft rubber component 2 more prominent, while the thickness of the curved transition surface 21 is reduced and its height is lower than that of the vibration transmission area. This effectively reduces energy loss and dispersion during vibration transmission, allowing the vibration generated by the sound-generating component 4 to be transmitted more concentratedly and efficiently from the top vibration surface to the skull, significantly improving vibration transmission efficiency and ensuring a clear and full auditory experience for the user. In terms of wearing comfort, the curved transition surface 21 fits more closely to the skin near the temporal bone of the human head, avoiding the pressure and foreign body sensation that may result from traditional right angles or abrupt edges. During prolonged wear, it significantly improves the comfort of contact with the skin while reducing the risk of skin damage due to friction, providing the user with a more fitting and comfortable wearing experience.

[0075] In this embodiment, as shown in the appendix Figure 2 As shown, after the top of the soft rubber part 2 is provided with an arc-shaped transition surface 21, a skirt is formed on the circumferential side of the arc-shaped transition surface 21 (i.e., Figure 1 The bottom surface of the skirt abuts or adheres to the surface of the housing 1 (position of the annular stop 22). The bottom surface of the skirt can be the same shape as the annular stop 22, or it can be a plane, a step or other shape. The surface of the housing 1 and the bottom surface of the skirt are arranged in a similar shape.

[0076] One embodiment of this application is shown in the appendix. Figure 1 As shown, the outer surface of the soft rubber part 2 is provided with at least one annular stop 22 and / or a mating step, and the top of the housing 1 is provided with a mating surface 13. The annular stop 22 and / or the mating step respectively mate with the mating surface 13 so as to facilitate a sealed connection between the soft rubber part 2 and the housing 1.

[0077] Among them, the mating surface 13 can be a V-shaped surface, a plane, or an arc surface, etc.

[0078] The connection stability between the soft rubber part 2 and the housing 1 can be further improved by the action of the annular stop 22 and / or the mating step and the mating surface 13, as well as the sealing of the first receiving cavity 19.

[0079] As attached Figure 3 and attached Figure 4 As shown, this application provides multiple methods for fixing the soft rubber part 2. The first method is to bond and fix it by the annular stop 22 to the mating surface 13; the second method is to bond and fix it by the extension 3 to the step 31; the third method is to bond and fix it by the mating step to the mating surface 13, or to bond and fix it by a structure combining the mating step and the annular stop 22 to the mating surface 13. When the extension 3 is chosen to bond and fix it to the step 31, the annular stop 22 can be replaced with a pleated edge, and the mating surface 13 can be adapted to it, thus simplifying it to... Figure 3 and Figure 4 The structure shown serves both dustproof and aesthetic purposes.

[0080] Furthermore, when the second fixing method is adopted, the extension 3 is directly bonded to the step 31. It can be bonded in conjunction with the annular groove 12 or multiple arc-shaped grooves or the bonding groove on the inner wall of the first receiving cavity 19. The annular groove 12, multiple arc-shaped grooves and bonding groove are used to place adhesive to increase the bonding area between the shell 1 and the extension 3 and improve the stability of the bonding.

[0081] One embodiment of this application is shown in the appendix. Figure 1 As shown, the bottom wall of the soft rubber part 2 is provided with continuous raised ridges 23 or multiple non-continuous raised ridges 23. Part of the sound-generating component 4 or the vibration plate 42 is located within the continuous raised ridges 23 or multiple non-continuous raised ridges 23. The continuous raised ridges 23 cooperate with the sound-generating component 4 or the vibration plate 42, which can not only be used to assist in positioning the sound-generating component 4, but also prevent glue overflow during bonding. The multiple raised ridges 23 cooperate with the sound-generating component 4 or the vibration plate 42 to assist in positioning the sound-generating component 4.

[0082] Multiple protruding bone positions 23 are arranged at intervals and cooperate with the sound-generating component 4 or the vibration plate 42 to assist in positioning the vibration plate 42.

[0083] The vibration transducer 42 can be integrated with the sound-generating component 4, or it can be set independently and then connected to the sound-generating component 4, with the two coinciding along the axis of the vibration direction of the sound-generating component 4.

[0084] One embodiment of this application is shown in the appendix. Figure 2 As shown, the bottom of the housing 1 is closed, and an elastic isolation pad 14 is provided in the first receiving cavity 19. One side of the elastic isolation pad 14 abuts against the bottom wall of the first receiving cavity 19, and the other side abuts against the bottom wall of the sound-generating component 4 and / or the side wall of the step 31.

[0085] Preferably, the elastic isolation pad 14 abuts against the bottom wall of the sound-generating component 4, and the side wall of the elastic isolation pad 14 is in clearance fit with the side wall of the step 31.

[0086] The elasticity of the elastic isolation pad 14 can buffer the vibration generated by the sound-generating component 4 during operation, preventing the vibration from being directly transmitted to the housing 1 and reducing vibration and resonance noise in the housing 1; it isolates the sound-generating component 4 from the bottom wall of the first receiving cavity 19, preventing the two from colliding and damaging the sound-generating component 4 under external impact; at the same time, it can also reduce the dispersion of vibration to the bottom of the housing 1, allowing more vibration energy to be transmitted to the human head through the soft rubber part 2, improving sound conduction efficiency and sound quality, and providing a strong guarantee for the stable operation of the sound-generating component 4 and the optimization of device performance.

[0087] In one embodiment of this application, the bottom of the housing 1 is provided with a groove 15, and a bottom cover 16 is provided inside the groove 15. The bottom cover 16 is connected to the bottom wall of the annular baffle 11. An elastic isolation pad 14 is also provided inside the groove 15. One side of the elastic isolation pad 14 abuts against the bottom cover 16, and the other side abuts against the bottom wall of the sound-generating component 44 and / or the step 31.

[0088] Preferably, the elastic isolation pad 14 abuts against the bottom wall of the sound-generating component 4, and the side wall of the elastic isolation pad 14 is in clearance fit with the side wall of the step 31.

[0089] In this embodiment, the bottom cover 16 can be a soft part, a hard part, or a soft part coated with rubber.

[0090] Among them, the soft part can be soft plastic, the hard part can be plastic or metal, and the hard part with soft part coated with rubber can be plastic with rubber wrapped around its outer surface; preferably, the bottom cover 16 is a hard part with soft part coated with rubber, which can not only improve the stability of the structural parts and facilitate installation, but also improve the tactile feel.

[0091] In this embodiment, a circuit board 17 is provided between the bottom cover 16 and the annular baffle 11. The sound-generating component 4 can be electrically connected to the circuit board 17, or it can be connected to the main board inside the bone conduction headphones through a wire passing through the housing 1. One side of the elastic isolation pad 14 abuts against the circuit board 17, and the other side abuts against the bottom wall of the sound-generating component 4 and / or the side wall of the step 31.

[0092] By providing a slot 15 at the bottom of the housing 1, components such as the circuit board 17 can be easily installed. At the same time, an elastic isolation pad 14 is provided between the circuit board 17 and the sound-generating component 4 to prevent direct contact between the sound-generating component 4 and the circuit board 17. The elastic isolation pad 14 can also isolate the vibration of the sound-generating component 4 to prevent damage to the circuit board 17.

[0093] In this embodiment, a first button 18 is provided on the bottom cover 16, and the first button 18 is electrically connected to the circuit board 17.

[0094] The first button 18 can be located in the middle or at the edge of the bottom cover 16, depending on the actual needs.

[0095] Furthermore, one or more buttons can be provided on the circuit board 17, facing the bottom cover 16. The buttons can be physical buttons or touch buttons. When the buttons are physical buttons, the bottom cover 16 is a soft part (the soft part can be a soft material such as silicone or rubber) to facilitate button operation. When the buttons are touch buttons, the bottom cover 16 is a thin hard part (the hard part can be a thin hard material such as plastic or glass) to facilitate touch operation. Multiple touch buttons can be used in combination (multiple touch buttons are arranged into a matrix (such as a row and column structure), and the number of functions can be expanded by detecting the combined pressed state of different buttons).

[0096] Furthermore, when the bottom of the housing 1 is in a closed state, one side of the elastic isolation pad 14 abuts against the bottom of the housing 1, and the other side of the elastic isolation pad 14 abuts against the bottom of the sound-generating component 4; at the same time, a circuit board 17 may also be provided inside the housing 1, and an elastic isolation pad 14 (as shown in the attached diagram) is provided between the circuit board 17 and the sound-generating component 4. Figure 4 (As shown).

[0097] When the bottom of housing 1 is closed, a slot can be opened on the bottom of housing 1 for installing the first button 18.

[0098] As attached Figure 6As shown, this application also provides a bone conduction headphone, including the aforementioned bone conduction sound generating device; the bone conduction headphone further includes two first structural members 5, two second structural members 6, electronic components, and a third structural member 7; there are two bone conduction sound generating devices, the two first structural members 5 are respectively disposed on the two bone conduction sound generating devices, the first structural members 5 are provided with opening slots, the two opening slots are arranged opposite to each other, and the end of the first structural member 5 near the bone conduction sound generating device is provided with an arc-shaped ear hook for assisting in hanging on the user's ear; the two second structural members 6 are respectively disposed on the first structural members 5, the second structural members 6 include an integral or independent first corresponding member and a second corresponding member; a receiving part is disposed on the first structural member 5 and / or the second corresponding member; the electronic component is disposed in the receiving part and is electrically connected to the bone conduction sound generating device; the third structural member 7 is disposed between the two first structural members or the two second structural members and is respectively connected to the two first structural members 5 or the two second structural members 6, and the third structural member 7 is provided with a wire, the two ends of the wire being respectively connected to the electronic components in the two receiving parts or on the two second structural members 6.

[0099] The first structural member 5 extends to one side along the surface of the bone conduction sound generating device, and the opening groove can be located on the upper side, lower side, inner side or outer side of the first structural member; the second structural member 6 is located on the side where the opening groove is provided in the first structural member 5, and the first corresponding member of the second structural member 6 corresponds to the opening groove, which is used to close the opening groove and cooperate with the opening groove to form a wire groove.

[0100] The receiving portion is disposed on the first structural member 5 and / or the second corresponding member. The receiving portion may be a groove formed by bending the surface of the first structural member 5 or the second corresponding member. The receiving portion may also be an open-type groove plate located on the first structural member 5 or the second corresponding member, or part of it located on the first structural member 5 and the other part located on the second corresponding member. When the receiving portion is an open-type groove plate, the receiving portion may be located in an open groove, which extends from one end of the first structural member 5 near the bone conduction sound generating component to the other end.

[0101] In this embodiment, the electronic components include a battery, a circuit board, or other components; wherein, the battery and the circuit board may be respectively disposed in two receiving parts, or the battery and the circuit board may be disposed in both receiving parts, depending on the layout and function of the bone conduction headphones.

[0102] In this embodiment, an abutment structure is provided between the second structural member 6 and the first structural member 5. The abutment structure includes an adhesive surface / step / stop, male and female columns, buckles and hooks, or combinations thereof.

[0103] In this embodiment, the bone conduction headphones further include at least one detection component 8, which is disposed within the bone conduction sound generating device or within the cavity enclosed by the first structural member 5 and the second structural member 6 or the first corresponding member, and is used to detect the wearing status of the bone conduction headphones.

[0104] Specifically, the detection component 8 can be a photoelectric sensor, which can be set in the cavity enclosed by the second structural member 6 or the first corresponding member and the first structural member 5 (the second structural member 6 or the first corresponding member has through holes to facilitate detection by the photoelectric sensor) or in the groove opened on the surface of the soft rubber part 2; the detection component 8 can also be a touch sensor containing a sensing electrode sheet, which can be set inside the soft rubber part 2 or between the soft rubber part 2 and the vibration plate 42, or further designed as a sensing electrode sheet, such as designing the vibration plate 42 as a metal material as a sensing electrode sheet and electrically connecting it to the touch sensor, or using a PCB board (Printed Circuit Board) as the vibration plate 42, designing copper foil in the PCB as a sensing electrode sheet, and electrically connecting it to the touch sensor.

[0105] In this embodiment, as shown in the appendix Figure 9 and attached Figure 10 As shown, the bone conduction headphones also include a button assembly 9, which is disposed on the first structural member 5 and / or the second structural member 6. The first structural member 5 and / or the second structural member 6 are provided with button holes. The button assembly 9 is located in the button holes and protrudes from the outer surface of the first structural member 5 and / or the second structural member 6 to facilitate pressing by the user. The button assembly 9 corresponds to the electronic components.

[0106] In this embodiment, the button assembly 9 includes a rigid component 91, a button covering layer 92, a button covering protrusion 93, and a rigid transfer member 95. A button hole is provided on the upper, lower, or outer side of the first structural component 5 and / or the second structural component 6. The button covering layer 92 is sleeved on the outer side of the rigid component 91, and the button covering layer 92 and the rigid component 91 are processed into a single unit through bonding, secondary overmolding, or in-mold secondary injection molding. The button covering layer 92 has a button covering protrusion 93 located within the button hole and protruding to the outside of the first structural component 5 and / or the second structural component 6. A groove is provided inside the button covering protrusion 93, facing the interior of the first structural component 5. The rigid transfer member 95 is disposed within the groove and abuts against the button handle on the electronic component.

[0107] Furthermore, the rigid transmission component 95 can be omitted; in this case, the extended key handle can be installed into the groove inside the key cover protrusion 93, or the groove depth can be reduced or even eliminated at the same time, while the key handle is lengthened.

[0108] Furthermore, the groove inside the key cover protrusion 93 can be omitted; in this case, without the rigid transmission member 95, the key handle can directly abut against the inner wall of the key cover protrusion 93.

[0109] When eliminating the rigid transmission component 95, the button handle needs to be lengthened, or the groove depth needs to be reduced until it is eliminated. However, the handle length of small buttons is usually limited, making selection inconvenient. Reducing the groove depth or eliminating the groove will increase the thickness of the covering layer corresponding to the button handle, further resulting in poor button feel.

[0110] When the groove inside the key cover protrusion 93 is removed, the thickness of the cover layer corresponding to the key stem increases, which further leads to poor key feel.

[0111] In this embodiment, the groove inside the button cover protrusion 93 and the rigid transfer member 95 are designed simultaneously. This not only allows for the use of conventional small buttons, but also reduces the thickness of the cover layer corresponding to the button handle, ensuring the button feel. At the same time, by setting the rigid member 91, the strength of the button assembly 9 can be further improved, as well as the assembly efficiency and assembly consistency can be enhanced.

[0112] In this embodiment, the button assembly 9 can also be made of pure soft rubber, that is, the button assembly 9 is composed entirely of pure soft rubber components.

[0113] In this embodiment, the surface of the button assembly 9 is provided with at least one continuous annular sealing stop 94, which is interference-fitted with the inner wall of the first structural member 5 and / or the second structural member 6, thereby improving the sealing and waterproofing effect.

[0114] Furthermore, the annular sealing stop 94 is arranged in a conical shape to form a sharp stop; the annular sealing stop 94 is in an interference fit with the inner wall of the first structural member 5 and / or the second structural member 6, thereby improving waterproofness.

[0115] In this embodiment, one side of the button assembly 9 mates with the inner wall of the first structural member 5 and / or the second structural member 6, and the other side abuts against a component (which may be a circuit board of an electronic component) located on the first structural member 5 and / or the second structural member 6, thereby serving as a limiting element.

[0116] In this embodiment, the first structural member 5 can be integrally arranged with the housing 1, or it can be separated into two structural members. The ear-hanging part of the first structural member 5 is used to hang on the user's ear, and the opening groove inside it cooperates with the first corresponding member to form a wire groove for wiring, etc.

[0117] In this embodiment, the surface of the rigid component 91 is provided with at least one complete or incomplete notch, which facilitates the insertion of the button handle into the groove inside the protrusion 93, or facilitates the installation of the rigid transmission component 95.

[0118] The notch can be semi-circular, circular, or square.

[0119] In this embodiment, the end of the first structural member 5 away from the bone conduction sound generating device is provided with a full hole, or the same end of the first structural member 5 and the second structural member 6 are provided with half holes, and the two half holes can be closed to form a full hole. The interior of the third structural member 7 is provided with a memory metal strip, and the two ends of the memory metal strip extend out of the third structural member 7 to form an irregular fixed structure. The two ends of the third structural member 7 are respectively inserted into the two full holes or the two half holes, and the irregular fixed structure is connected to the first structural member 5 and / or the second structural member 6 through the fixing member, so that the third structural member 7 is fixed to the first structural member 5.

[0120] One end of the first structural component 5 is a full hole, which improves aesthetics and facilitates installation and positioning.

[0121] Preferably, the first structural member 5 and the second structural member 6 are provided with half holes at the same end, which is simple in structure and convenient for mold design. The two first structural members 5 can be connected and fixed by the half holes on the first structural member 5 and the third structural member 7. At this time, the second structural member 6 is not installed, which makes it convenient to conduct tests. That is, the third structural member 7 is directly inserted into the half hole, which facilitates assembly and improves testing efficiency.

[0122] As attached Figure 7 As shown, the irregularly shaped fixing structure can be L-shaped, U-shaped, or O-shaped, etc., and the fixing component can be screw, clip, or other parts that can be used for fixing, and adhesive can be used for assistance.

[0123] In this embodiment, the bone conduction headphones also include at least one microphone, which is disposed within the housing 1 and may also be disposed within the accommodating portions on both sides where batteries and circuit boards are installed.

[0124] In this embodiment, as shown in the appendix Figure 7 and attached Figure 8 As shown, the receiving part is also provided with a charging interface, one end of which extends out a first structural member 5 and / or a second structural member 6. The charging structure can be a Type-C interface or a magnetic interface. Figure 7 It has a magnetic connector. Figure 8 It uses the Type-C interface.

[0125] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the solutions disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and embodiments are to be considered exemplary only, and the true scope and spirit of the invention are indicated by the claims.

Claims

1. A bone conduction sound generating device, characterized by, include: The housing has an upward-facing first receiving cavity; A soft rubber component is disposed at the opening of the first receiving cavity; An extension is disposed on the side of the soft rubber part near the first receiving cavity; the extension cooperates with the soft rubber part to form a second receiving cavity with the opening facing downward; The extension is located inside the first receiving cavity and is sealed to the side wall of the first receiving cavity; the bottom of the extension is connected to the bottom of the first receiving cavity. The sound-generating component is disposed inside the second receiving cavity.

2. The bone conduction sound generating device according to claim 1, characterized in that, An annular baffle is provided at the bottom of the first receiving cavity, and the end of the extension away from the soft rubber part is connected to the annular baffle.

3. The bone conduction sound generating device according to claim 2, wherein The inner wall of the extension is provided with a step, the bottom of the sound-generating component is arranged in a conformal manner or abutting against the step, the sound-generating component cooperates with the inner wall of the extension, and the step is connected to or spaced apart from the annular baffle.

4. The bone conduction sound generating device of claim 2, wherein The top of the annular baffle is provided with a continuous annular groove or multiple non-continuous arc-shaped grooves, and an adhesive is provided in the annular groove or multiple arc-shaped grooves.

5. The bone conduction sound generating device of claim 1, wherein The outer peripheral surface of the soft rubber part is provided with an arc-shaped transition surface, and the height of the arc-shaped transition surface gradually decreases from the center of the soft rubber part to the outside to form an arc-shaped surface.

6. A bone conduction sound generating device according to claim 1, characterized in that, The outer surface of the soft rubber component is provided with at least one annular stop and / or a mating step, and the top of the housing is provided with a mating surface. The annular stop and / or the mating step respectively mate with the mating surface so that the soft rubber component and the housing are sealed together.

7. A bone conduction sound generating device according to claim 1, characterized in that, The bottom wall of the soft rubber component is provided with continuous raised ribs or multiple non-continuous raised ribs, and the sound-generating component is located within the continuous raised ribs or multiple non-continuous raised ribs.

8. A bone conduction sound generating device according to claim 3, characterized in that, The bottom of the housing is closed, and an elastic isolation pad is provided in the first receiving cavity. One side of the elastic isolation pad abuts against the bottom wall of the first receiving cavity, and the other side abuts against the bottom wall of the sound-generating component and / or the step.

9. The bone conduction sound generating device of claim 3, wherein The bottom of the housing is provided with a groove, and a bottom cover is provided in the groove. The bottom cover is connected to the bottom wall of the annular baffle. An elastic isolation pad is provided in the groove. One side of the elastic isolation pad abuts against the bottom cover, and the other side abuts against the sound-generating component and / or the step.

10. A bone conduction sound generating device according to claim 9, characterized in that, A circuit board is provided between the bottom cover and the annular baffle. One side of the elastic isolation pad abuts against the circuit board, and the other side abuts against the sound-generating component and / or the step. A first button is provided on the bottom cover, and the first button is electrically connected to the circuit board.

11. A bone conduction headphone, comprising the bone conduction sound generating device according to any one of claims 1-9, characterized in that, Also includes: Two first structural components are respectively disposed on the two bone conduction sound generating devices; the first structural component is provided with an opening groove; and the end of the first structural component near the bone conduction sound generating device is provided with an ear hook. Two second structural components are respectively disposed on two first structural components; the second structural components include an integral or independent first corresponding component and second corresponding component; A receiving portion is disposed on the first structural member and / or the second corresponding member; An electronic component is disposed within the receiving portion; the electronic component is electrically connected to the bone conduction sound generating device. A third structural component is disposed between the two first structural components or the two second structural components, and is connected to the two first structural components or the two second structural components respectively; the third structural component has wires inside, and is connected to the electronic components in the two receiving portions respectively.

12. A bone conduction headphone according to claim 11, characterized in that, It also includes: At least one detection component is disposed within the bone conduction sound-generating device or within the cavity enclosed by the first structural member and the second structural member, for detecting the wearing status of the bone conduction headphones.

13. A bone conduction headphone according to claim 11, characterized in that, It also includes: A button assembly is disposed on the first structural member and / or the second structural member; The first structural member and / or the second structural member are provided with key holes; the key assembly is located in the key holes and protrudes from the outer surface of the first structural member and / or the second structural member, and the key assembly corresponds to the electronic component.

14. A bone conduction earpiece according to claim 13, wherein The surface of the button assembly is provided with at least one continuous annular sealing stop, which cooperates with the inner wall of the first structural member and / or the second structural member.

15. A bone conduction headphone according to claim 11, characterized in that, One end of the first structural member is provided with a full hole, or both the first structural member and the second structural member are provided with half holes at the same end. The third structural member is provided with a shape memory metal strip inside. The two ends of the shape memory metal strip extend out of the third structural member and form an irregularly shaped fixing structure. The two ends of the third structural member are respectively inserted into the full hole or the half hole. The irregularly shaped fixing structure is connected to the first structural member and / or the second structural member.

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