An audio device

Abstract

The application relates to the technical field of audio equipment structures, in particular to an audio equipment. The audio equipment comprises a circuit board, a first shell and a second shell. A battery and the circuit board are respectively located on two sides of the first shell; the second shell is detachably connected with the first shell, and the second shell is provided with a flexible abutting piece abutting against the battery. When battery maintenance is needed, only the second shell needs to be disassembled, the side of the battery away from the circuit board is exposed, the battery can be dismounted, and the circuit board and the structure on the other side of the circuit board do not need to be dismounted, so that the problem that the sound quality is damaged is not caused. The ordinary user can operate simply, and the core device is not exposed, so that the failure risk is reduced; the flexible abutting piece stably limits the battery and prevents hard damage, and the use safety is improved. The application effectively solves the problems that in the prior art, the battery maintenance of the audio equipment is inconvenient, and the dismounting of the battery easily causes irreversible change of the sound quality of the audio equipment.

Description

Technical Field

[0001] This application relates to the technical field of audio device structures, and more particularly to an audio device. Background Technology

[0002] In current mainstream headphones, the battery, as the core component for wireless battery life, is usually fixed inside the back shell. However, when the battery needs to be removed for maintenance, it is necessary to start from the front shell. This structure of rear-mounted battery and front-mounted removal has many problems.

[0003] Disassembling the front shell irreversibly damages the acoustic chamber seal, which directly determines sound quality. After disassembly, the original sealing layer is damaged, and even reassembly cannot restore the initial sealing precision, ultimately leading to sound quality degradation, sound leakage, and affecting usability. Furthermore, disassembling the headphones requires precise separation of the clips and sealing structure, a highly complex operation that necessitates specialized equipment such as soldering irons, hot air guns, and dedicated adhesive removal tools. Ordinary users lack both the tools and the skills to remove solder joints, adhesive, and perform subsequent reassembly. Additionally, after the front shell is removed, core components such as the motherboard and speaker are directly exposed. Improper handling during battery removal, such as tool impacts or excessive force, can cause short circuits on the motherboard and damage to the speaker diaphragm, resulting in headphone malfunction. Utility Model Content

[0004] The purpose of this application is to overcome at least one of the shortcomings of the prior art and to provide an audio device that solves the problem of inconvenient battery maintenance and disassembly in the prior art, and avoids the problem of irreversible changes in the sound quality of the audio device due to battery disassembly.

[0005] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description or may be learned by practice of this application.

[0006] According to one aspect of this application, an audio device is provided, which mainly includes: a circuit board, a first housing and a second housing. The first housing is provided with a mounting cavity for accommodating a battery, and the second housing is provided with a flexible abutment on the side facing the battery. The circuit board is located on the side of the first housing away from the mounting cavity. The second housing is detachably connected to the side of the first housing away from the circuit board, and when the second housing abuts against the first housing, the flexible abutment abuts against the battery.

[0007] In this type of embodiment, when the battery needs to be removed, it is only necessary to start disassembling from the second housing. After the second housing is removed, the side of the battery away from the circuit board is exposed, and the battery can be removed directly. Thus, battery maintenance does not require the removal of the circuit board and the structure on the other side where the circuit board is located, thereby avoiding the problem of sound quality damage.

[0008] To address the issue of complex clips and sealing structures in the front casing, which make disassembly difficult, this solution uses a second casing that is detachably connected to the side of the first casing away from the circuit board. This eliminates the need to separate the clips and sealing structures around the circuit board, making disassembly simpler. Furthermore, since the battery is located in the mounting cavity of the first casing, it can be directly accessed after removing the second casing, eliminating the need to deal with solder joints or glue. Even ordinary users can perform battery maintenance, resolving the problems of inconvenient disassembly and reliance on specialized tools in existing technologies.

[0009] By placing the circuit board on the side of the first housing away from the mounting cavity, when disassembling the second housing, the circuit board and other core components connected to the circuit board are all located on the other side of the first housing away from the second housing, and will not be exposed on the outside of the audio device. This can avoid problems such as short circuits of the motherboard caused by tool bumps or improper force during disassembly, and reduce the risk of core component failure.

[0010] A flexible abutment is provided on the side of the second housing facing the battery. When the second housing abuts against the first housing, the flexible abutment abuts against the battery. On the one hand, the abutment structure can stably confine the battery within the mounting cavity of the first housing, preventing the battery from shifting during the use of the audio equipment; on the other hand, the flexible material avoids hard contact between the abutment and the battery, which can reduce damage to the battery casing caused by squeezing and collision, reduce safety hazards such as battery leakage and short circuits, and improve battery safety.

[0011] In some example embodiments of this application, based on the aforementioned scheme, the first housing is provided with a first through hole, the first through hole connects the mounting cavity and the side of the first housing near the circuit board, the circuit board is provided with an electrical spring, the electrical spring at least partially extends into the mounting cavity, and when the battery is assembled in the mounting cavity, the battery is electrically connected to the circuit board through the electrical spring.

[0012] In this type of embodiment, the electrical spring of the circuit board extends into the mounting cavity through the first through hole. After the battery is assembled into the mounting cavity, it can be directly electrically connected to the circuit board via the electrical spring without relying on wire soldering, FPC (Flexible Printed Circuit) adapters, or BTB (Board-to-Board Connectors). This design eliminates the wiring process; during assembly, simply placing the battery into the mounting cavity completes the circuit connection. Disassembly does not require removing cured adhesive or treating solder joints, significantly reducing assembly and maintenance steps, improving efficiency, and lowering the risk of poor contact due to wiring faults.

[0013] Although the first through-hole connects the mounting cavity to the side of the first housing closest to the circuit board, the bottom structure of the mounting cavity physically separates the battery and the circuit board, keeping them spatially independent. This isolation design avoids electrical interference between the battery and the circuit board, reduces signal interference problems that may occur due to their direct proximity, and improves the stability of the audio equipment during operation. At the same time, physical isolation also reduces the probability of the battery directly contacting the circuit board when the casing is damaged and leaks, reducing the risk of short circuits and improving the electrical safety of the device.

[0014] The battery is connected to the circuit board via an electrical spring within the first through-hole, eliminating the need for additional connection interfaces or structural modifications on the acoustic cavity side where the circuit board is located. This design further ensures that no operations need to be performed on the circuit board side where the acoustic cavity is located during battery maintenance, completely avoiding structural changes to the acoustic cavity side due to adjustments in the connection method. This strengthens the protection of the acoustic cavity seal at the connection level, reduces the possibility of sound quality attenuation and sound leakage, and ensures the sound quality stability of the audio equipment.

[0015] In some example embodiments of this application, based on the aforementioned scheme, the first housing includes a base plate and a surrounding plate forming an installation cavity. A first through hole is provided in the base plate, and the surrounding plate is provided with an opening communicating with the first through hole. The circuit board is provided with a locking block. After the first housing and the second housing are assembled, the locking block passes through the first through hole and matches the opening. The battery abuts against the electrical spring, and the electrical spring abuts against the locking block.

[0016] In this type of embodiment, the first housing is formed by a base plate and a surrounding plate together to create a mounting cavity, forming a protruding mounting structure. This design eliminates the need for complex slotting or hollowing out of the base plate to accommodate battery installation, maintaining the structural integrity of the base plate. Simultaneously, the protruding surrounding plate confines the mounting cavity to a specific area, preventing it from encroaching on the space occupied by the circuit board. This avoids forcing the circuit board to compress its layout space due to the mounting cavity, ensuring the proper arrangement of components on the circuit board. Furthermore, the separate enclosure structure of the base plate and surrounding plate simplifies the manufacturing process compared to a complex integrated cavity design. The base plate and surrounding plate can be processed separately and then assembled, reducing manufacturing difficulty and improving manufacturing efficiency.

[0017] The opening on the enclosure connects to the first through hole in the base plate. During assembly, this opening serves as a positioning guide, providing a clear field of view and space for operation, whether inserting the electrical spring through the first through hole into the mounting cavity or placing the battery into the mounting cavity to align with the electrical spring. This avoids assembly alignment difficulties caused by obstruction from the enclosure. Simultaneously, the opening assists in adjusting the battery's placement angle, ensuring precise alignment between the battery and the electrical spring, reducing repeated adjustments during assembly and improving overall assembly efficiency.

[0018] After assembly, the circuit board's locking block passes through the first through-hole and aligns with the opening in the surrounding plate, simultaneously abutting against the electrical spring. This structure provides a clear positional limit for the electrical spring: when the spring is compressed during battery assembly or when it springs back after battery removal, the locking block prevents excessive deformation, avoiding loss of elasticity due to repeated excessive deformation over a long period, which could lead to ineffective contact during subsequent battery assembly. Through the locking block's limiting effect, the electrical spring remains within its effective elastic range, ensuring stable contact between the battery and the spring after each battery installation or removal, maintaining the reliability of the circuit connection, and preventing poor contact problems caused by spring failure.

[0019] It is understandable that the matching of the card block and the opening means that the card block can form a certain cooperation relationship with the opening. After the card block passes through the first through hole, it needs to form an abutment with the electrical spring. The elasticity of the electrical spring can be set according to the elasticity requirements. The corresponding elasticity of the card block is set inside or outside the opening. Therefore, the width of the card block can match the width of the opening.

[0020] In some example embodiments of this application, based on the aforementioned scheme, the first housing is provided with a first positioning part, and the second housing is provided with a second positioning part. The first positioning part and the second positioning part cooperate with each other to connect the first housing and the second housing.

[0021] In this type of embodiment, when the first positioning part and the second positioning part cooperate with each other, they can form a clear alignment guide, avoiding lateral offset or angular misalignment during the assembly of the two housings. The cooperation structure of the positioning parts provides clear operational guidance for the assembly and disassembly of the housings. Users can complete the alignment without repeatedly adjusting the positions of the two housings during assembly, and can also smoothly separate along the positioning cooperation direction during disassembly, avoiding assembly and disassembly jamming or forced prying caused by the lack of positioning guidance. The cooperation between the first positioning part and the second positioning part can limit the assembly and disassembly path of the first housing and the second housing, avoiding collisions or wear on the edges of the housings or damage to the surface structure of the housings due to operational deviations during assembly and disassembly.

[0022] In some example embodiments of this application, based on the aforementioned scheme, the first positioning part includes at least one first snap-fit ​​structure, and the second positioning part includes a corresponding second snap-fit ​​structure, wherein the first snap-fit ​​structure and the second snap-fit ​​structure are snap-fitted and fixed together.

[0023] In this type of embodiment, the practicality and reliability of the housing connection are further enhanced by the snap-fit ​​fixing of the first snap-fit ​​structure and the corresponding second snap-fit ​​structure. The snap-fit ​​structure requires no additional tools, significantly reducing the barrier to disassembly and assembly while ensuring connection stability. Furthermore, the snap-fit ​​design simplifies the structure, reduces costs and improves efficiency, adapts to production and maintenance scenarios, and reduces stress damage during disassembly and assembly, extending the service life of the housing.

[0024] In some example embodiments of this application, based on the aforementioned scheme, the first snap-fit ​​structure includes a first snap-fit, the second snap-fit ​​structure includes a second snap-fit, and the first snap-fit ​​and the second snap-fit ​​are snap-fitted and fixed.

[0025] In this type of embodiment, when the first buckle and the second buckle are engaged with each other, they form a two-way engaging force structure. Compared with the cooperation of a single buckle and a buckle hole, the mutual engagement of the two buckles can disperse the force points and improve the overall engagement strength.

[0026] It is understandable that the engagement of the snap-fit ​​component and the snap-fit ​​hole requires space for the snap-fit ​​component to be inserted into the snap-fit ​​hole, resulting in a relatively large engagement distance. However, the first snap-fit ​​and the second snap-fit ​​can be set close to each other, which greatly shortens the engagement gap between the first housing and the second housing.

[0027] When the two snaps are engaged, they can support each other structurally. The force of the two snaps is more even, and they can withstand greater external forces during disassembly and assembly as well as impacts during use. In contrast, the structure of the snap hole only bears force at the edge, which is prone to wear or breakage due to repeated insertion and removal. The design of the two snaps can avoid structural damage.

[0028] In some example embodiments of this application, based on the aforementioned scheme, one of the first positioning part and the second positioning part is provided with at least one pin, and the other is provided with a socket corresponding to the pin. The pin and the socket cooperate with each other to fix the first housing and the second housing.

[0029] In this type of embodiment, the engagement of the pin and the socket provides alignment guidance. During assembly, simply aligning the pin with the socket and inserting it quickly completes the initial positioning of the first and second housings, eliminating the need for repeated adjustments to the housing positions. After the pin is inserted into the socket, it creates a circumferential constraint, restricting the first housing from rotating radially relative to the second housing. The engagement of the pin and the socket does not require complex fastening or unlocking structures; during assembly and disassembly, only a pushing or pulling force along the pin's axial direction is needed to complete separation and docking, making the operation logic simple and easy to understand.

[0030] In some example embodiments of this application, based on the foregoing scheme, the audio device includes a fastener; the first positioning part includes at least one first mounting hole, the second positioning part includes at least one second mounting hole, and the fastener is used to fasten the first mounting hole and the second mounting hole to connect the first housing and the second housing.

[0031] In this type of embodiment, the mating of fasteners with mounting holes is a standard industrial practice. The mature technology eliminates the need for developing special molds; only standardized mounting holes need to be machined. Standardized fasteners have low procurement costs and a stable supply, reducing production delays and lowering overall manufacturing costs. The mounting holes provide clear reference points; during assembly, simply align and screw them in. Disassembly requires only ordinary tools (such as screwdrivers). Ordinary users can easily disassemble and maintain the battery, while professional repair scenarios also benefit from improved efficiency, adapting to diverse needs.

[0032] Once assembled, the fasteners form a self-locking structure, resisting pulling, impact, and vibration during the use of audio equipment and preventing the housing from loosening. This ensures the flexible abutment component stably holds the battery, prevents dust and moisture from entering, and maintains the acoustic cavity seal, avoiding sound quality issues.

[0033] In some example embodiments of this application, based on the aforementioned scheme, the first positioning part is provided with a first column extending in the direction close to the second housing, and a first assembly hole is provided on the first column. The second positioning part is provided with a second column extending in the direction close to the first housing, and a second assembly hole is provided on the second column. When the first housing and the second housing are connected, the first column and the second column are nested together, and the first assembly hole and the second assembly hole are aligned.

[0034] In this type of embodiment, the nesting of the first and second columns enables pre-positioning, directly guiding the assembly holes to precise alignment without repeated adjustments, simplifying assembly operations and ensuring consistency during mass production. The nested columns form a radial limiting relationship, which absorbs radial shear forces, thus sharing the shear force borne by the fasteners and preventing breakage due to impact or tension. This enhances the connection strength of the housing and prevents loosening during use. The nested columns also ensure a tighter fit between the two housings, reducing gaps and lowering the risk of dust and moisture entering the mounting cavity; simultaneously, it maintains the sealing performance of the acoustic cavity, preventing sound quality attenuation.

[0035] In some example embodiments of this application, based on the aforementioned scheme, the first positioning part includes a first snap-fit ​​structure, a first column, a first insertion hole and a second insertion hole, and the first positioning part includes a second snap-fit ​​structure, a second column, a first pin and a second pin. The first snap-fit ​​structure and the second snap-fit ​​structure are snap-fitted and fixed, the first column and the second column are nested and fitted, the first pin is inserted and fixed to the first insertion hole, and the second pin is inserted and fixed to the second insertion hole.

[0036] In this type of embodiment, combining multiple positioning and connection methods ensures a stable connection between the first and second housings, as well as precise positioning. Specifically, the snap-fit ​​fixing requires no professional tools, lowering the barrier to battery maintenance; the nested column provides shear resistance and a high degree of fit, reducing external force overload and dust intrusion; the pins and sockets can be circumferentially limited and precisely pre-positioned, preventing misalignment of the battery and electrical springs and failure of the acoustic cavity seal. The three methods work together to solve the shortcomings of a single method, achieving convenient assembly and disassembly, reliable connection, and precise positioning.

[0037] The bidirectional guidance of each mating method can eliminate the risk of deviation: the pin and the socket provide a reference for the snap-fit ​​and the nesting of the column, avoiding incomplete snap-fit ​​or jamming; the column and the snap-fit ​​can also limit the pin's wobbling and prevent loosening, forming a closed loop of positioning, fixing and preventing loosening, ensuring the assembly consistency of mass production and reducing human error.

[0038] In some example embodiments of this application, based on the aforementioned scheme, the second housing has a cylindrical structure, and the second snap-fit ​​structure, the first pin, the second assembly hole, and the second pin are arranged sequentially around the axis of the second housing.

[0039] In this type of embodiment, multiple connection points arranged around the axis of the second housing can evenly distribute external forces in the circumferential direction, avoiding force concentration at a single connection point. Compared with locally arranged connection structures, the surrounding design can better resist impacts and torsional forces during equipment use, prevent overload damage to a certain connection point, ensure that the first and second housings are always stably connected, and reduce housing loosening problems caused by connection failure.

[0040] Furthermore, the connection points around the axis are distributed circumferentially, forming a mutually restraining constraint relationship. The arc-shaped surface of the cylindrical second shell is adapted to the surrounding connection points, and the connection points are evenly distributed along the circumference, which makes the second shell more evenly stressed and reduces shell deformation caused by local stress concentration.

[0041] In some example embodiments of this application, based on the aforementioned scheme, an adhesive layer is provided on the side of the battery away from the flexible abutment member to fix the battery to the mounting cavity.

[0042] In this type of embodiment, the adhesive layer can pre-fix the battery in a preset position in the mounting cavity to prevent the battery from popping out or shifting. This ensures that the battery is always in the correct posture when the first housing is assembled, avoiding the housing pressing against the battery due to battery orientation deviation, reducing the risk of battery shell deformation and internal structure damage, and improving assembly yield.

[0043] In some example embodiments of this application, based on the aforementioned scheme, a mounting frame is provided on the side of the second housing facing the first housing, and a flexible abutment is embedded in the mounting frame.

[0044] In this type of embodiment, the mounting frame provides a clear and fixed mounting position for the flexible abutment, preventing the abutment from shifting due to assembly deviations or vibrations during use. This ensures that it is always precisely aligned with the battery inside the mounting cavity, preventing abutment misalignment that could lead to ineffective contact with the battery, thus laying the foundation for stable abutment.

[0045] The flexible abutment component embedded in the mounting frame is fixed in position, resulting in more stable abutment direction and force. The mounting frame can constrain the deformation range of the flexible abutment component, preventing excessive deformation when subjected to housing assembly pressure, thereby preventing it from exerting excessive abutment force on the battery.

[0046] In some example embodiments of this application, based on the aforementioned scheme, the flexible abutment is foam, and the foam is attached to the mounting frame.

[0047] Foam has strong flexibility and can be flexibly fitted to the shape of the battery, ensuring a stable contact with the battery while cushioning the impact during assembly and use. The shape of the foam is easy to process, allowing for precise matching of the mounting frame and battery dimensions, avoiding gaps or excessive compression; at the same time, the low price of foam can reduce component costs and meet the needs of mass production.

[0048] The adhesive bonding process eliminates the need for additional fasteners, slots, or other fixing structures on the mounting frame or foam, reducing component complexity and weight, which meets the lightweight requirements of portable audio devices such as headphones. Furthermore, the adhesive bonding process is simple, which can improve assembly efficiency and avoid assembly errors caused by complex structures.

[0049] In some example embodiments of this application, based on the foregoing scheme, the audio device is a headset or a speaker.

[0050] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0051] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0052] Figure 1 A perspective view of an audio device provided in one embodiment of this application is shown.

[0053] Figure 2 A right-side view of an audio device provided in one embodiment of this application is shown.

[0054] Figure 3 It shows Figure 2 A cross-sectional view along the AA direction.

[0055] Figure 4 It shows Figure 2 A cross-sectional view along the BB direction.

[0056] Figure 5 An assembly diagram of an audio device provided in one embodiment of this application is shown.

[0057] The above figures include the following reference numerals:

[0058] 10. Circuit board; 11. Electrical spring; 12. Clip; 20. First housing; 21. Mounting cavity; 22. First through hole; 23. Base plate; 24. Enclosure plate; 25. First positioning part; 251. First snap-fit ​​structure; 2511. First buckle; 252. Insertion hole; 253. First assembly hole; 254. First column; 26. Opening; 30. Second housing; 31. Second positioning part; 311. Second snap-fit ​​structure; 3111. Second buckle; 312. Pin; 313. Second assembly hole; 314. Second column; 40. Battery; 50. Flexible abutment; 60. Fastener; 71. Front shell; 72. Sound outlet structure. Detailed Implementation

[0059] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this application will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0060] The features, structures, or characteristics described above can be combined in any suitable manner in one or more embodiments, and where possible, the features discussed in the various embodiments are interchangeable. In the above description, numerous specific details are provided to give a full understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details described, or other methods, components, materials, etc., can be employed. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0061] Although this application uses relative terms such as "up" and "down" to describe the relative relationship of one component of an icon to another, these terms are used only for convenience, such as the orientation of the example shown in the accompanying drawings. It is understood that if the icon's arrangement is flipped so that it is upside down, the component described as "up" will become the component described as "down". Other relative terms, such as "high", "low", "top", "bottom", "front", "back", "left", and "right", also have similar meanings. When a structure is "up" of another structure, it may mean that the structure is integrally formed on the other structure, or that the structure is "directly" mounted on the other structure, or that the structure is "indirectly" mounted on the other structure through another structure.

[0062] In this application, the terms “a,” “an,” “the,” “the,” and “at least one” are used to indicate the presence of one or more elements / components / etc.; the terms “comprising,” “including,” and “having” are used to indicate an open-ended inclusion meaning and to mean that there may be other elements / components / etc. in addition to the listed elements / components / etc.

[0063] Please see Figures 1 to 4 In some exemplary embodiments of this application, an audio device is provided, which mainly includes: a circuit board 10, a first housing 20 and a second housing 30. The first housing 20 is provided with a mounting cavity 21 for accommodating a battery 40. The second housing 30 is provided with a flexible abutment 50 on the side facing the battery 40. The circuit board 10 is located on the side of the first housing 20 away from the mounting cavity 21. The second housing 30 is detachably connected to the side of the first housing 20 away from the circuit board 10. When the second housing 30 abuts against the first housing 20, the flexible abutment 50 abuts against the battery 40.

[0064] In this type of embodiment, when it is necessary to remove the battery 40, it is only necessary to disassemble it from the second housing 30. After the second housing is removed, the side of the battery 40 away from the circuit board 10 is exposed, and the battery 40 can be directly removed. In this way, the maintenance and disassembly of the battery 40 does not require the removal of the circuit board 10 and the structure on the other side where the circuit board 10 is located, thereby avoiding damage to the sound quality caused by accidentally touching the circuit board 10 during the disassembly process.

[0065] Understandably, circuit board 10 typically needs to connect to sound output structure 72, such as a speaker or microphone, which is located inside the sound cavity of the audio device; that is, the other side of the first housing 20 is the sound cavity of the audio device. This design ensures that the sound cavity remains on the side of the first housing 20 where circuit board 10 is located, unaffected by the disassembly of the second housing 30. This guarantees the integrity of the sound cavity structure, thus avoiding sound quality degradation and leakage problems, and resolving the technical pain point of irreversible sound quality changes caused by battery 40 removal.

[0066] To address the problem of complex clips and sealing structures requiring disassembly of the front shell in existing technologies, which makes disassembly difficult, this solution detachably connects the second shell 30 to the side of the first shell 20 away from the circuit board 10, eliminating the need to separate the clips and sealing structures around the sound cavity and circuit board 10, thus simplifying the disassembly operation. Simultaneously, the battery 40 is housed in the mounting cavity 21 of the first shell 20, allowing direct contact with the battery 40 after disassembling the second shell 30, eliminating the need to handle solder joints or adhesive. Ordinary users can maintain the battery 40 without professional skills, resolving the issues of inconvenient disassembly and reliance on specialized tools in existing technologies.

[0067] By placing the circuit board 10 on the side of the first housing 20 away from the mounting cavity 21, when disassembling the second housing 30, the circuit board 10 and other core components connected to the circuit board 10 are all located on the other side of the first housing 20 and will not be exposed to the outside of the audio device. This can avoid short circuits on the main board and damage to the speaker diaphragm caused by tool bumps or improper force during disassembly, and significantly reduce the risk of core component failure.

[0068] A flexible abutment 50 is provided on the side of the second housing 30 facing the battery 40. When the second housing 30 abuts against the first housing 20, the flexible abutment 50 abuts against the battery 40. On the one hand, this abutment structure can stably limit the battery 40 within the mounting cavity 21 of the first housing 20, preventing the battery 40 from shifting during the use of the audio equipment; on the other hand, the flexible material can avoid hard contact between the abutment and the battery 40, reducing damage to the battery 40 casing caused by squeezing and collision, reducing safety hazards such as leakage and short circuit of the battery 40, and improving the safety of the battery 40 in use.

[0069] Understandably, the traditional structural design places the battery 40 inside the casing, providing protection within a fixed and enclosed environment. However, this design has a drawback: disassembling and maintaining the battery 40 requires removing the front casing, which damages the sealed structure of the sound chamber, and then disassembling components such as the circuit board 10 one by one before finally removing the battery 40. This makes disassembly and maintenance difficult for ordinary users, and even for professional technicians, it involves a significant amount of work.

[0070] In the above solution, the battery 40 can be easily disassembled by the detachable design of the second housing 30 without damaging the core structure of the product. When reassembling after maintenance, it is only necessary to connect the second housing 30 to the first housing 20. This reduces the user's maintenance costs and meets the environmental protection requirement of easy disassembly of the battery 40, thus supporting the product's compliance with international regulations.

[0071] Please refer to the following for further information. Figure 1 In one specific embodiment of the above application, an earphone is provided. The front shell 71 of the earphone is used to set the sound output structure 72 of the earphone, such as an in-ear or on-ear structure. The front shell is located in the middle, while the rear shell is located on the side away from the sound output.

[0072] The flexible abutment 50 is used to generate elastic deformation, and based on its flexible physical characteristics, it will not cause excessive pressure, ensuring the positional stability of the battery 40 and preventing damage to the battery 40. In some alternative solutions, the flexible abutment 50 can be made of sponge, silicone products, flexible rubber, porous flexible materials, etc., without special restrictions.

[0073] Please see Figure 5In some example embodiments of this application, based on the positional layout of the mounting cavity 21 and the circuit board 10 of the first housing 20 described above, this embodiment further optimizes the connection and structural safety between the battery 40 and the circuit board 10 by providing a first through hole 22 in the first housing 20 and configuring an electrical spring 11 in the circuit board 10. Specifically, the first through hole 22 connects the mounting cavity 21 and the side of the first housing 20 near the circuit board 10. The circuit board 10 is provided with an electrical spring 11, which at least partially extends into the mounting cavity 21. When the battery 40 is assembled in the mounting cavity 21, the battery 40 is electrically connected to the circuit board 10 through the electrical spring 11.

[0074] Based on the above embodiments, the electrical contact 11 of the circuit board 10 extends into the mounting cavity 21 through the first through hole 22. After the battery 40 is assembled into the mounting cavity 21, it can be directly electrically connected to the circuit board 10 through the electrical contact 11 without relying on wire soldering, FPC adapters, or BTB connectors. This design eliminates the wiring process; during assembly, simply placing the battery 40 into the mounting cavity 21 is sufficient to complete the circuit connection. During disassembly, there is no need to remove cured adhesive or treat solder joints, significantly reducing assembly and maintenance steps. This improves efficiency while reducing the risk of poor contact due to wiring faults.

[0075] Although the first through hole 22 connects the mounting cavity 21 and the side of the first housing 20 closest to the circuit board 10, the bottom structure of the mounting cavity 21 physically separates the battery 40 from the circuit board 10, keeping them spatially independent. This isolation design avoids electrical interference between the battery 40 and the circuit board 10, reduces signal interference problems that may occur if they are directly close to each other, and improves the operational stability of the audio equipment. At the same time, physical isolation also reduces the probability that the battery 40 will directly contact the circuit board 10 when the casing is damaged and leaks, reducing the risk of short circuits and improving the electrical safety of the equipment.

[0076] The connection between the battery 40 and the circuit board 10 is achieved through the electrical spring 11 in the first through hole 22, eliminating the need for additional connection interfaces or structural processing on the acoustic cavity side where the circuit board 10 is located. This design further ensures that no operation is required on the circuit board 10 side where the acoustic cavity is located during battery 40 maintenance, completely avoiding structural changes on the acoustic cavity side due to adjustments in the connection method. This strengthens the protection of the acoustic cavity seal from the connection level, reduces the possibility of sound quality attenuation and sound leakage, and ensures the sound quality stability of the audio equipment.

[0077] It is understandable that there can be multiple electrical springs 11. Based on the combination and connection of different springs, the battery 40 can supply power to the circuit board 10, or the charging unit connected to the circuit board 10 can supply charging current to the battery 40.

[0078] Please see Figures 3 to 5In some example embodiments of this application, based on the aforementioned scheme, the first housing 20 includes a base plate 23 and a surrounding plate 24 forming an installation cavity 21. A first through hole 22 is provided on the base plate 23, and the surrounding plate 24 is provided with an opening 26 communicating with the first through hole 22. The circuit board 10 is provided with a locking block 12. After assembly, the locking block 12 passes through the first through hole 22 and matches the opening 26. The battery 40 abuts against the electrical spring 11, and the electrical spring 11 abuts against the locking block 12.

[0079] Based on the structural foundation of the mounting cavity 21, the first through hole 22, and the electrical spring 11 of the first housing 20 in the aforementioned scheme, this embodiment further optimizes the performance, assembly convenience, and circuit connection stability of the mounting cavity 21 by refining the structure of the first housing 20, namely the base plate 23 and the surrounding plate 24, and setting the opening 26 of the surrounding plate 24 and the circuit board 10 locking block 12.

[0080] In this type of embodiment, the first housing 20 is formed by the base plate 23 and the surrounding plate 24 together to form a mounting cavity 21, creating a protruding mounting structure. This design eliminates the need for complex slotting or hollowing out of the base plate 23 to accommodate the battery 40, maintaining structural integrity. Simultaneously, the protruding surrounding plate 24 confines the mounting cavity 21 to a specific area, preventing it from encroaching on the space where the circuit board 10 is located. This avoids the circuit board 10 being forced into a compressed layout due to cavity encroachment, ensuring proper component arrangement. Furthermore, compared to an integrated, complex cavity, the separate structure of the base plate 23 and the surrounding plate 24 simplifies the processing steps, allowing for separate processing and assembly, reducing production difficulty and improving manufacturing efficiency.

[0081] The opening 26 on the enclosure 24 communicates with the first through hole 22 on the base plate 23, serving as a positioning guide structure during assembly. Whether the electrical spring 11 is inserted into the mounting cavity 21 through the first through hole 22, or the battery 40 is placed into the cavity and aligns with the spring, the opening 26 provides a clear operating view and space, avoiding alignment difficulties caused by obstruction from the enclosure 24. Simultaneously, the opening 26 can assist in adjusting the placement angle of the battery 40, ensuring precise alignment with the electrical spring 11, reducing repeated adjustments and improving assembly efficiency.

[0082] After the latch 12 of the circuit board 10 is assembled, it passes through the first through hole 22 and matches the opening 26 of the surrounding plate 24, while simultaneously abutting against the electrical spring 11. This structure provides a clear limit for the electrical spring 11: when the spring is pressed during battery 40 assembly or when it springs back after disassembly, the latch 12 can prevent excessive deformation, avoiding the spring from losing its elasticity due to long-term repeated deformation, which would lead to ineffective subsequent contact. Through the limit provided by the latch 12, the electrical spring 11 is always within the effective elastic range, ensuring stable contact between the battery 40 and the spring after each assembly and disassembly, maintaining the reliability of the circuit connection, and avoiding contact problems caused by spring failure.

[0083] Furthermore, based on the above-described solution, the opening 26 on the individual enclosure 24 also has a foolproof feature, which can assist in the assembly of the battery 40. It only requires the battery 40's contact piece to match the opening 26. It can be understood that the position of the opening 26 is directional. For example, in a rectangular mounting cavity 21, the opening 26 is located on the left or right side of one side of the rectangle. In this case, the opening on one side of the enclosure 24 corresponds to the electrical spring 11 on the circuit board 10 and the contact area of ​​the battery 40. With a one-to-one correspondence, incorrect installation of the battery 40 can be prevented, thus serving a foolproof function.

[0084] Please see Figures 3 to 5 In some example embodiments of this application, based on the aforementioned scheme, the first housing 20 is provided with a first positioning part 25, and the second housing 30 is provided with a second positioning part 31. The first positioning part 25 and the second positioning part 31 cooperate with each other to connect the first housing 20 and the second housing 30.

[0085] In this type of embodiment, when the first positioning part 25 and the second positioning part 31 cooperate with each other, they can form a clear alignment guide, avoiding lateral offset or angular misalignment during the assembly of the two housings. It can be understood that the second housing 30 needs to stably abut against the battery 40 in the mounting cavity 21 through the flexible abutment member 50. Precise positioning and matching can ensure that after the second housing 30 and the first housing 20 are docked, the flexible abutment member 50 maintains a preset abutment force with the battery 40. This prevents the abutment member from excessively pressing the battery 40 due to housing misalignment, and also prevents abutment failure due to alignment deviation. At the same time, precise connection can also maintain the structural sealing of the first housing 20 and the second housing 30, preventing external dust and moisture from entering the mounting cavity 21 through the housing gaps and affecting the performance of the battery 40 or internal components.

[0086] The positioning mechanism provides clear operational guidance for the assembly and disassembly of the housing. Users can complete the alignment without repeatedly adjusting the positions of the two housings during assembly, and can also smoothly separate them along the positioning direction during disassembly, avoiding assembly and disassembly jamming or forced prying caused by the lack of positioning guidance.

[0087] The positioning unit further lowers the operational threshold for ordinary users, eliminating the need for additional tools for alignment. The casing can be disassembled and assembled solely through the positioning structure, significantly improving the convenience and efficiency of battery maintenance.

[0088] The cooperation between the first positioning part 25 and the second positioning part 31 can limit the disassembly and assembly path of the first housing 20 and the second housing 30, avoiding damage to the housing edges or the surface structure of the housing due to operational deviations during disassembly and assembly. Without positioning guidance, the user may mistakenly insert the second housing 30 into the first housing 20 at an angle, causing deformation of the enclosure 24 or damage to the edge of the first through hole 22; while the cooperation of the positioning parts can standardize the disassembly and assembly direction, reduce unexpected structural stress, thereby reducing the risk of physical damage to the housing, extending the overall service life of the audio equipment, and ensuring that the housing can still maintain stable connection performance after multiple subsequent disassembly and maintenance.

[0089] Please see Figure 3 In some example embodiments of this application, based on the aforementioned scheme, the first positioning part 25 includes at least one first snap-fit ​​structure 251, and the second positioning part 31 includes a corresponding second snap-fit ​​structure 311, wherein the first snap-fit ​​structure 251 and the second snap-fit ​​structure 311 are snap-fitted and fixed.

[0090] In this type of embodiment, the practicality and reliability of the housing connection are further enhanced by the snap-fit ​​fixing of the first snap-fit ​​structure 251 and the corresponding second snap-fit ​​structure 311.

[0091] The snap-fit ​​structure achieves fixation through elastic fastening or interlocking. During assembly and disassembly, only moderate force needs to be applied in a preset direction to complete the snap-fit ​​and separation of the housings, eliminating the need for additional tools such as screwdrivers or soldering irons. This design allows users to easily assemble and disassemble the first housing 20 and the second housing 30 without professional operating skills, further simplifying the battery 40 maintenance process. From positioning and alignment to snap-fit ​​fixation, the entire operation requires no tool assistance, significantly improving the convenience of self-maintenance for ordinary users.

[0092] The snap-fit ​​design requires no additional tools, significantly reducing the barrier to disassembly and assembly, while ensuring connection stability and enhancing the reliability of the casing and battery 40.

[0093] The snap-fit ​​structure has self-locking or elastic retention characteristics, and can form a stable connection force after snapping, preventing the first housing 20 and the second housing 30 from loosening or shifting due to vibration or collision during equipment use. The snap-fit ​​fixation ensures that the housing always maintains the preset mating position, so that the flexible abutment 50 continuously abuts the battery 40 with appropriate force, and the battery 40 will not shift due to loosening of the housing.

[0094] Furthermore, the snap-fit ​​design simplifies the structure, reduces costs, and improves efficiency, adapting to production and maintenance scenarios. It also reduces stress damage during assembly and disassembly, extending the lifespan of the housing. Alternatively, the snap-fit ​​structure can be directly integrated into the edges or inner walls of the first housing 20 and the second housing 30, eliminating the need for additional screws, nuts, or other connectors. This reduces the number of parts in the equipment, lowering material costs during production and simplifying mold design and processing. During production assembly, the housings can be quickly snapped together using the snap-fit ​​mechanism, eliminating the need for individual screw alignment or welding, significantly improving assembly efficiency. During later maintenance, the snap-fit ​​mechanism separates much faster than screw removal, shortening battery maintenance time and meeting the efficiency requirements of both production and maintenance.

[0095] In terms of disassembly and maintenance, during the snap-fit ​​process, the force is concentrated on the elastic contact parts of the snap-fit ​​structure, and the separation direction matches the housing structure. Unlike screw disassembly, there is no need for repeated tightening, or forcibly prying like with a non-locating structure. This uniform force distribution method further reduces the risk of edge impacts, deformation of the enclosure 24, or damage around the first through hole 22, ensuring that the housing maintains its intact structure and stable snap-fit ​​performance after multiple disassembly and maintenance, thus extending the overall service life of the audio equipment.

[0096] Please see Figure 3 In some example embodiments of this application, based on the aforementioned scheme, the first snap-fit ​​structure 251 includes a first snap-fit ​​2511, and the second snap-fit ​​structure 311 includes a second snap-fit ​​3111, with the first snap-fit ​​2511 and the second snap-fit ​​3111 snap-fitted and fixed together.

[0097] In this type of embodiment, when the first buckle 2511 and the second buckle 3111 are engaged with each other, they form a bidirectional engaging force structure. Compared with the cooperation of a single buckle and a buckle hole, the mutual engagement of the two buckles can disperse the force points and improve the overall engagement strength.

[0098] During the use of the audio equipment, even under external forces such as vibration and impact, the double latches are not prone to loosening or displacement, and can stably maintain the docking state of the first housing 20 and the second housing 30. Combined with the design mentioned above where the second housing 30 abuts against the battery 40 through the flexible abutment 50, the stable housing connection ensures that the flexible abutment 50 always adheres to the battery 40 with a preset force, preventing the battery 40 from shifting due to housing loosening or the abutment detaching from the battery 40, thus ensuring the continuous and reliable operation of the equipment.

[0099] It is understandable that the engagement of the snap-fit ​​component and the snap-fit ​​hole requires the space for the snap-fit ​​component to be inserted into the snap-fit ​​hole, and the engagement distance is relatively large. However, the first snap-fit ​​2511 and the second snap-fit ​​3111 can be set close to each other, which greatly shortens the engagement gap between the first housing 20 and the second housing 30.

[0100] The compact mating structure reduces the probability of external dust and moisture entering the mounting cavity 21 through the gaps in the housing, thus lowering the risk of contamination or moisture damage to the battery 40 and internal components. On the other hand, it compresses the overall thickness of the housing after mating, providing space support for the lightweight and miniaturized design of audio equipment, which meets the size requirements of portable audio devices such as headphones.

[0101] When the two snaps are engaged, they can support each other structurally. The force of the two snaps is more even, and they can withstand greater external forces during disassembly and assembly as well as impacts during use. In contrast, the structure of the snap hole only bears force at the edge, which is prone to wear or breakage due to repeated insertion and removal. The design of the two snaps can avoid structural damage.

[0102] Please see Figure 4 In some example embodiments of this application, based on the aforementioned scheme, one of the first positioning part 25 and the second positioning part 31 is provided with at least one pin 312, and the other is provided with a socket 252 corresponding to the pin 312. The pin 312 and the socket 252 cooperate with each other to fix the first housing 20 and the second housing 30.

[0103] In this type of embodiment, the engagement of the pin 312 and the socket 252 serves as an alignment guide. During assembly, simply aligning the pin 312 with the socket 252 and inserting it quickly completes the initial positioning of the first housing 20 and the second housing 30, eliminating the need for repeated adjustments to the housing positions. Precise pre-positioning ensures that when the housings are docked, the flexible abutment 50 maintains a preset abutment position with the battery 40, preventing assembly misalignment from causing the abutment to press against a portion of the battery 40 (increasing the risk of damage to the battery 40) or from incomplete contact (affecting the battery 40's fixation effect). Simultaneously, a unified positioning benchmark reduces errors in different assembly operations, ensuring consistency in the connection of housings across different devices during mass production and improving product quality stability.

[0104] After the pin 312 is inserted into the socket 252, it forms a circumferential constraint, restricting the first housing 20 from rotating radially relative to the second housing 30. The engagement between the pin 312 and the socket 252 does not require a complex fastening or unlocking structure. During disassembly and assembly, only a pushing or pulling force along the axial direction of the pin 312 needs to be applied to complete the separation and docking. The operation logic is simple and easy to understand.

[0105] This constraint effectively prevents internal structural misalignment caused by circumferential rotation of the housing during device use (such as daily wear or accidental collisions). For example, as mentioned earlier, the battery 40 is connected to the circuit board 10 via the electrical spring 11. If the housing rotates circumferentially, it may cause the battery 40 to shift, resulting in poor contact between the battery 40 and the electrical spring 11 (affecting power supply stability). At the same time, circumferential rotation may also damage the sealing structure of the acoustic cavity side of the first housing 20. The circumferential constraint of the pin 312 and the socket 252 can eliminate such risks, ensuring that the connection between the battery 40 and the circuit is stable and that the acoustic cavity sealing performance is not affected.

[0106] This design further lowers the barrier to entry for disassembling and assembling the casing. Users can independently complete the disassembly and assembly of the casing related to battery maintenance without learning special operating skills, greatly improving the convenience of self-maintenance. At the same time, the axial force disassembly and assembly method can reduce bumps and wear on the edges of the casing, reducing the risk of casing damage caused by operational errors.

[0107] In addition to its positioning function, the engagement of pin 312 and socket 252 also helps to strengthen the connection strength of the housing: after the pin 312 is inserted, it can share part of the radial force, reduce the load on other connection structures (such as buckles), and avoid fatigue damage to a single connection structure due to long-term concentrated force; at the same time, the dual function of circumferential constraint and radial positioning makes the housing connection more stable, better resists the impact of external vibration and impact on the internal structure, reduces problems such as battery 40 displacement and poor contact of electrical spring 11 caused by housing loosening, and improves the overall anti-interference capability and service life of the equipment.

[0108] Please see Figure 3 and Figure 5 In some example embodiments of this application, based on the aforementioned scheme, the audio device includes a fastener 60; the first positioning part 25 includes at least one first mounting hole 253, the second positioning part 31 includes at least one second mounting hole 313, and the fastener 60 is used to fasten the first mounting hole 253 and the second mounting hole 313 to connect the first housing 20 and the second housing 30.

[0109] In this type of embodiment, the mating of fastener 60 with the mounting hole is a standard industrial practice. The mature technology eliminates the need for developing special molds; only standardized mounting holes need to be machined. The standardized fastener 60 has low procurement costs and a stable supply, reducing production delays and lowering overall manufacturing costs. The mounting hole provides a clear reference point; during assembly, it can be aligned and screwed in. Disassembly requires only ordinary tools (such as a screwdriver). Ordinary users can easily disassemble and maintain battery 40, while professional repair scenarios can also benefit from improved efficiency, adapting to diverse needs.

[0110] After assembly, fastener 60 forms a self-locking structure, resisting pulling, impact, and vibration during the use of audio equipment and preventing the housing from loosening. It ensures that the flexible abutment 50 stably abuts against the battery 40, prevents dust and moisture from entering, and maintains the sealing of the sound cavity to avoid sound quality problems.

[0111] Alternatively, fastener 60 can be a threaded fastener 60. The connection strength of the threaded fastener 60 can be adjusted by the tightening force to suit daily or outdoor durability needs. During subsequent deep maintenance, fastener 60 can be removed to completely separate the housing without irreversible damage, facilitating repair and upgrades and extending the equipment's lifespan.

[0112] Please see Figure 3 and Figure 5 In some example embodiments of this application, based on the aforementioned scheme, the first positioning part 25 is provided with a first column 254 extending in the direction close to the second housing 30, and a first assembly hole 253 is provided in the first column 254. The second positioning part 31 is provided with a second column 314 extending in the direction close to the first housing 20, and a second assembly hole 313 is provided in the second column 314. When the first housing 20 and the second housing 30 are connected, the first column 254 and the second column 314 are nested together, and the first assembly hole 253 and the second assembly hole 313 are aligned.

[0113] In this type of embodiment, the nesting of the first column 254 and the second column 314 enables pre-positioning, directly guiding the assembly holes to precise alignment without repeated adjustments, simplifying assembly operations and ensuring consistency during mass production. The nested columns can share the shear force borne by the fastener 60, preventing breakage due to impact or tension, increasing the connection strength of the housing, and preventing loosening of the housing during use. The nested columns also ensure a tighter fit between the two housings, reducing gaps and lowering the risk of dust and moisture entering the mounting cavity 21; simultaneously, they maintain the sealing performance of the acoustic cavity, preventing sound quality attenuation.

[0114] The first column 254 and the second column 314 can be nested together in two ways: First column 254 has a groove whose radial dimension corresponds to the dimension of the second column 314, and the two are then combined. Alternatively, second column 314 has a groove whose radial dimension corresponds to the dimension of the first column 254, and the two are then combined.

[0115] Please see Figure 3 and Figure 5In some example embodiments of this application, based on the aforementioned scheme, the first positioning part 25 includes a first snap-fit ​​structure 251, a first post 254, a first insertion hole 252 and a second insertion hole 252. The first positioning part 25 includes a second snap-fit ​​structure 311, a second post 314, a first pin 312 and a second pin 312. The first snap-fit ​​structure 251 and the second snap-fit ​​structure 311 are snap-fitted and fixed. The first post 254 and the second post 314 are nested and fitted together. The first pin 312 is inserted and fixed to the first insertion hole 252. The second pin 312 is inserted and fixed to the second insertion hole 252.

[0116] In this type of embodiment, combining multiple positioning and connection methods ensures a stable connection between the first housing 20 and the second housing 30, and provides precise positioning. Specifically, the snap-fit ​​fixing requires no professional tools, reducing the maintenance threshold for the battery 40; the nested column provides shear resistance and a high degree of fit, reducing external force overload and dust intrusion; the pin 312 and the socket 252 can provide circumferential limiting and precise pre-positioning, preventing misalignment between the battery 40 and the electrical spring 11 and failure of the acoustic cavity seal. The three methods work together to solve the shortcomings of a single method, achieving the effects of convenient assembly and disassembly, reliable connection, and precise positioning.

[0117] The bidirectional guidance of each mating method can eliminate the risk of deviation: the pin 312 and the socket 252 provide a reference for the snap-fit ​​and the nesting of the column, avoiding incomplete snap-fit ​​or jamming; the column and the snap-fit ​​can also limit the shaking of the pin 312 and prevent loosening, forming a closed loop of positioning, fixing and anti-loosening, ensuring the assembly consistency of mass production and reducing human error.

[0118] Understandably, the snap-fit ​​design prevents axial separation, the upright prevents radial displacement, and the 312 pin prevents circumferential rotation, covering all directions of movement. This prevents battery displacement, power interruption, or sound quality degradation due to misalignment during wear, drops, or vibrations, ensuring stable operation.

[0119] During disassembly and assembly, the device is guided and unlocked by the 312 pin, eliminating the need for forceful operation and reducing structural wear. During use, multiple structural groups share external forces, preventing fatigue damage to individual components. If one structural group suffers slight damage, the others can still maintain connection, improving fault tolerance and extending the overall service life of the equipment.

[0120] Please see Figure 5 In some example embodiments of this application, based on the aforementioned scheme, the second housing 30 has a cylindrical structure, and the second buckle 3111, the first pin 312, the second assembly hole 313 and the second pin 312 are arranged sequentially around the axis of the second housing 30.

[0121] In this type of embodiment, multiple connection points arranged around the axis of the second housing 30 can evenly distribute external forces in the circumferential direction, avoiding force concentration at a single connection point. Compared with locally arranged connection structures, the surrounding design can better resist impacts and torsional forces during equipment use, prevent overload damage to a certain connection point, ensure that the first housing 20 and the second housing 30 are always stably connected, and reduce housing loosening problems caused by connection failure.

[0122] Furthermore, the connection points around the axis are arranged in a circular pattern, forming a mutually restraining constraint relationship. For example, the snap-fit ​​fixing of the second buckle 3111 and the insertion limiting of the first pin 312 cooperate with each other to simultaneously restrict the axial separation and circumferential rotation of the housing; the arrangement of the second assembly hole 313 and the second pin 312 further supplements the constraint, preventing the overall structure from shifting due to local loosening of the connection, making the connection system more stable.

[0123] The curved surface of the cylindrical second shell 30 is adapted to the surrounding connection points, which are evenly distributed along the circumference. This allows for more balanced stress distribution on the shell and reduces shell deformation caused by localized stress concentration. At the same time, the surrounding arrangement provides a clear circumferential positioning reference for assembly, facilitating quick alignment of mating structures and improving assembly efficiency and consistency.

[0124] In some example embodiments of this application, based on the aforementioned scheme, an adhesive layer is provided on the side of the battery 40 away from the flexible abutment 50 for fixing the battery 40 to the mounting cavity 21.

[0125] In this type of embodiment, the adhesive layer can pre-fix the battery 40 in a preset position in the mounting cavity 21 to prevent the battery 40 from popping out or shifting. This ensures that the battery 40 is always in the correct posture when the first housing 20 is assembled, avoiding the housing pressing against the battery 40 due to the deviation of the battery 40's orientation, reducing the risk of deformation of the battery 40's outer shell and damage to its internal structure, and improving the assembly yield.

[0126] It is understandable that when disassembling the second housing 30 to maintain the battery 40, the adhesive layer can temporarily fix the battery 40 in the mounting cavity 21, preventing the battery 40 from falling off directly. This not only makes it easier for users to accurately pick up and put down the battery 40, reducing damage to the battery 40 caused by falling, but also reduces the risk of the battery 40 touching the motherboard, speaker, or other components when it falls off, thus improving the safety and convenience of maintenance operations.

[0127] Combined with the abutting effect of the flexible abutting member 50 mentioned above, the adhesive layer forms a bidirectional fixation from the other side of the battery 40. During equipment use, the battery 40 is not easily displaced, which can ensure that the battery 40 and the electrical spring 11 maintain stable contact, avoid power interruption due to battery 40 displacement, and at the same time reduce the impact of battery 40 shaking on the internal structure of the mounting cavity 21, thus extending the service life of the battery 40 and the equipment.

[0128] In some example embodiments of this application, based on the aforementioned scheme, a mounting frame is provided on the side of the second housing 30 facing the first housing 20, and the flexible abutment 50 is embedded in the mounting frame.

[0129] In this type of embodiment, the mounting frame provides a clear and fixed mounting position for the flexible abutment 50, preventing the abutment from shifting due to assembly deviations or vibrations during use, ensuring that it is always precisely aligned with the battery 40 inside the mounting cavity 21, and preventing the problem of abutment offset that would prevent effective contact with the battery 40, thus laying the foundation for stable abutment.

[0130] The flexible abutment member 50, embedded in the mounting frame, is fixed in position, ensuring more stable abutment direction and force. The mounting frame constrains the deformation range of the flexible abutment member 50, preventing excessive deformation under the pressure of the housing assembly and thus preventing excessive abutment force on the battery 40. After equipment assembly, the abutment member can continuously and evenly act on the battery 40, preventing localized incomplete abutment due to abutment member positional movement, ensuring the battery 40 is always under effective flexible constraint. This effectively reduces the risk of battery 40 shell deformation and internal structural damage due to excessive compression, protecting the battery 40's safety.

[0131] In some example embodiments of this application, based on the aforementioned scheme, the flexible abutment 50 is foam, and the foam is attached to the mounting frame.

[0132] The foam has strong flexibility and can be flexibly fitted to the shape of the battery 40, ensuring a stable contact with the battery 40 while cushioning the impact forces during assembly and use. The shape of the foam is easy to process, and it can precisely match the size of the mounting frame and the battery 40, avoiding contact gaps or excessive compression; at the same time, the low price of foam can reduce component costs and meet the needs of mass production.

[0133] The adhesive bonding process eliminates the need for additional clips, slots, or other fixing structures on the mounting frame or foam, reducing component complexity and weight, thus meeting the lightweight requirements of portable audio devices such as headphones. Furthermore, the bonding operation is simple, improving assembly efficiency and avoiding assembly errors caused by complex structures. The adhesive bonding ensures the foam adheres tightly to the mounting frame, preventing displacement due to vibration or impact during use and ensuring a stable fit. Simultaneously, the soft foam material, combined with the strong adhesive bonding, maintains a flexible constraint on the battery 40 over a long period, protecting the battery 40 from damage and ensuring the overall structural stability of the device.

[0134] Please see Figure 1 In some example embodiments of this application, based on the foregoing scheme, the audio device is a headset or a speaker. Specifically, the headset may be a Bluetooth headset or a headset with a built-in battery 40. The speaker may specifically be a Bluetooth speaker.

[0135] It should be understood that this application is not limited to the detailed structure and arrangement of the components proposed in this application. This application can have other embodiments and can be implemented and executed in various ways. The foregoing variations and modifications fall within the scope of this application. It should be understood that the disclosure and definition of this application extends to all alternative combinations of two or more individual features mentioned or apparent in the text and / or drawings. All these different combinations constitute multiple alternative aspects of this application. The embodiments described in this application illustrate the best known mode for implementing this application and will enable those skilled in the art to utilize this application.

Claims

1. An audio device, characterized in that, include: Circuit board; The first housing has a mounting cavity for accommodating the battery; The second housing has a flexible abutment on the side facing the battery; The circuit board is disposed on the side of the first housing away from the mounting cavity, the second housing is detachably connected to the side of the first housing away from the circuit board, and when the second housing abuts against the first housing, the flexible abutment abuts against the battery.

2. The audio device according to claim 1, characterized in that, The first housing is provided with a first through hole, which connects the mounting cavity and the side of the first housing near the circuit board. The circuit board is provided with an electrical spring, which at least partially extends into the mounting cavity. When the battery is assembled in the mounting cavity, the battery is electrically connected to the circuit board through the electrical spring.

3. The audio device according to claim 2, characterized in that, The first housing includes a base plate and a surrounding plate forming the mounting cavity. The first through hole is provided in the base plate, and the surrounding plate is provided with an opening communicating with the first through hole. The circuit board is provided with a locking block. After the first housing and the second housing are assembled, the locking block passes through the first through hole and matches the opening. The battery abuts against the electrical spring, and the electrical spring abuts against the locking block.

4. The audio device according to claim 1, characterized in that, The first housing is provided with a first positioning part, and the second housing is provided with a second positioning part. The first positioning part and the second positioning part cooperate with each other to connect the first housing and the second housing.

5. The audio device according to claim 4, characterized in that, The first positioning part includes at least one first snap-fit ​​structure, and the second positioning part includes a corresponding second snap-fit ​​structure, wherein the first snap-fit ​​structure and the second snap-fit ​​structure are snap-fitted and fixed together.

6. The audio device according to claim 5, characterized in that, The first snap-fit ​​structure includes a first snap-fit, and the second snap-fit ​​structure includes a second snap-fit, wherein the first snap-fit ​​and the second snap-fit ​​are snap-fitted and fixed together.

7. The audio device according to claim 4, characterized in that, One of the first positioning part and the second positioning part is provided with at least one pin, and the other is provided with a hole corresponding to the pin. The pin and the hole cooperate with each other to fix the first housing and the second housing.

8. The audio device according to claim 5, characterized in that, The audio device includes a fastener; the first positioning part includes at least one first mounting hole, the second positioning part includes at least one second mounting hole, and the fastener is used to fasten the first mounting hole and the second mounting hole to connect the first housing and the second housing.

9. The audio device according to claim 8, characterized in that, The first positioning part is provided with a first column extending in a direction close to the second housing, and the first assembly hole is provided on the first column. The second positioning part is provided with a second column extending in a direction close to the first housing, and the second assembly hole is provided on the second column. When the first housing and the second housing are connected, the first column and the second column are nested together, and the first assembly hole and the second assembly hole are aligned.

10. The audio device according to claim 9, characterized in that, The first positioning part includes the first snap-fit ​​structure, the first column, the first insertion hole and the second insertion hole, and the first positioning part includes the second snap-fit ​​structure, the second column, the first pin and the second pin. The first snap-fit ​​structure and the second snap-fit ​​structure are snap-fitted and fixed, the first column and the second column are nested and fitted, the first pin is inserted and fixed to the first insertion hole, and the second pin is inserted and fixed to the second insertion hole.

11. The audio device according to claim 10, characterized in that, The second housing has a cylindrical structure, and the second snap-fit ​​structure, the first pin, the second assembly hole, and the second pin are arranged sequentially around the axis of the second housing.

12. The audio device according to claim 1, characterized in that, An adhesive layer is provided on the side of the battery away from the flexible abutment, for fixing the battery to the mounting cavity.

13. The audio device according to claim 1, characterized in that, The second housing has a mounting frame on the side facing the first housing, and the flexible abutment is embedded in the mounting frame.

14. The audio device according to claim 13, characterized in that, The flexible abutment is foam, and the foam is attached to the mounting frame.

15. The audio device according to any one of claims 1 to 14, characterized in that, The audio device is a headset or a speaker.

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