Battery assembly and TWS earphone

By using a quick-connect coupling mechanism for modular battery components to quickly connect with TWS earbuds, the problem of power replenishment for TWS earbuds in environments without charging equipment is solved, reducing usage costs and maintenance complexity, and improving user experience.

CN224288392UActive Publication Date: 2026-05-26MINAMI ACOUSTICS LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
MINAMI ACOUSTICS LTD
Filing Date
2024-12-30
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing TWS earbuds rely on charging cables and charging cases for charging, which requires users to carry charging devices at all times and cannot charge them in time when there is no power outlet. Furthermore, earbud repair is complicated, and if the battery components cannot be repaired, the entire earbud needs to be replaced, increasing the cost of use.

Method used

The modular battery assembly is designed to quickly connect to TWS earphones using a quick-connect coupling mechanism, including a magnetic attachment and an electrical coupling device, to achieve electrical connection and provide power through a replaceable battery.

Benefits of technology

It enables rapid power replenishment without charging cables and charging boxes, reducing operating costs and improving ease of use and equipment maintenance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224288392U_ABST
    Figure CN224288392U_ABST
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Abstract

The utility model provides a battery assembly, which comprises a power supply adaptive cabin, a replaceable battery is arranged in the power supply adaptive cabin, and the power supply adaptive cabin is provided with a quick coupling mechanism so as to realize quick assembly with a TWS earphone and provide electric energy. According to the utility model, through the design of the modularized battery assembly, the power supply adaptation cabin is provided with the fast-assembly coupling mechanism, and the TWS earphone can be externally connected to realize electrical connection, so that the problems that the existing TWS earphone needs to be charged by depending on a charging wire and a charging box and cannot be charged in time when a charging device is forgotten to be carried or the earphone is in an environment without a power socket are solved; a user can supplement electric energy for the earphone by quickly assembling the battery assembly at any time, and the use convenience is greatly enhanced. Besides, for the TWS earphone provided by the utility model, when the battery assembly is damaged and cannot be repaired, the whole earphone does not need to be replaced, and only the battery assembly needs to be independently maintained or replaced, so that the use cost is effectively reduced.
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Description

[Technical Field]

[0002] This utility model relates to the field of battery technology, and in particular to a battery component and a TWS earphone. [Background Technology]

[0004] In today's consumer electronics market, TWS earbuds, with their unique advantage of freeing users from the constraints of wires, have achieved true wireless freedom and are highly favored by consumers. They are widely used in people's lives, becoming indispensable audio devices during commutes, exercise, and leisure time, allowing people to listen to music and answer calls anytime, anywhere. Currently, most TWS earbuds rely on a dedicated charging cable and charging case to replenish power. While this method greatly improves the earbuds' battery life, it also means that users need to always remember to carry the charging cable and case, and once the charging case's power is depleted, charging can only be done in an environment with a power outlet. In real life, this charging solution can cause many inconveniences for users in certain situations. For example, when users rush out to work and forget to bring their charging devices, or are in places without power outlets such as camping in the wild or in remote scenic areas, they cannot charge the earbuds when they run out of power and have no choice but to stop using them. Furthermore, since the battery component is built into the earbuds, if the earbuds malfunction, repairs are not only troublesome, but if the battery component cannot be repaired, the entire earbud needs to be replaced, significantly increasing the cost of use. [Utility Model Content]

[0006] The purpose of this invention is to provide a battery assembly that addresses the aforementioned problems in the prior art.

[0007] This utility model is achieved through the following technical solution:

[0008] A battery assembly includes a power adapter compartment housing a replaceable battery and a quick-connect coupling mechanism for rapid assembly with TWS earphones and provision of power.

[0009] As described above, the power adapter housing includes a power adapter shell that is detachably assembled with TWS earphones, the power adapter shell contains a replaceable battery, and the power adapter shell is connected to a matching power cover.

[0010] As described above, the quick-connect coupling mechanism includes an electrical coupling device disposed between the power adapter shell and the battery, and a quick-connect structure disposed on the power adapter shell for detachable assembly with TWS earphones. When the quick-connect structure is assembled with the TWS earphones, the electrical coupling device is electrically connected to the TWS earphones.

[0011] As described above, in a battery assembly, the electrical coupling device includes a battery adapter plate connected to the battery on one side, and power connection terminals connected to both sides of the battery adapter plate. The power connection terminals pass through and connect to the bottom of the power adapter shell so as to achieve electrical connection synchronously when the TWS earphones are assembled.

[0012] As described above, the quick-release structure includes a magnetic attraction device disposed on the power adapter shell that can be magnetically connected to TWS earphones.

[0013] In one battery assembly as described above, the magnetic attraction device is disposed between the two power connection terminals.

[0014] As described above, in one type of battery assembly, the quick-release structure includes an assembly groove disposed along the outer periphery of the power adapter housing, the assembly groove being adapted to the mounting position of the TWS earphone.

[0015] In one type of battery assembly as described above, the side wall of the assembly slot is provided with a positioning groove that matches a corresponding positioning part provided in the mounting position.

[0016] As described above, a battery assembly has anti-slip textured patterns around the outer periphery of the power supply cover.

[0017] A TWS earphone includes a mounting position for connecting to an external power source, the mounting position being detachably connected to a battery assembly as claimed in any one of the claims.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] This invention utilizes a modular battery component design. Its power adapter compartment features a quick-connect coupling mechanism, allowing for electrical connection to external TWS earbuds. This overcomes the limitations of existing TWS earbuds that rely on charging cables and charging cases, making them unreliable for charging when forgetting charging equipment or in environments without power outlets. Users can easily replenish the earbuds' power by quickly assembling the battery component, significantly enhancing convenience. Furthermore, it addresses the drawbacks of traditional TWS earbuds with built-in battery components, such as cumbersome earbud repairs and the need to replace the entire earbud if the battery cannot be repaired, leading to significantly increased operating costs. Now, only the battery component needs repair or replacement, effectively reducing operating costs. [Attached Image Description]

[0021] To more clearly illustrate the technical solutions in the embodiments of the utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0022] Figure 1 This is a three-dimensional structural schematic diagram of Example 1;

[0023] Figure 2 This is a top view of Example 1;

[0024] Figure 3 This is a bottom view of Example 1;

[0025] Figure 4 for Figure 2 Schematic cross-section view along the middle AA;

[0026] Figure 5 This is an exploded view of Example 1;

[0027] Figure 6 This is a three-dimensional structural schematic diagram of Example 2;

[0028] Figure 7 This is an exploded view of Example 2.

Detailed Implementation Methods

[0030] To make the technical problems solved by this application, the technical solutions, and the beneficial effects clearer, this application 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 merely illustrative of this application and are not intended to limit this application.

[0031] Example 1: Please refer to Figures 1 to 5 This embodiment provides a battery assembly, including a power adapter compartment 1, which houses a replaceable battery 2. The power adapter compartment 1 is equipped with a quick-connect coupling mechanism 3 to enable rapid assembly with TWS earphones and provide power.

[0032] In this embodiment, the power adapter compartment 1, as the main structure of the entire battery assembly, is preferably made of lightweight and durable materials such as aluminum alloy or high-strength plastic, providing good protection and portability. Its internal design includes a dedicated battery compartment for accommodating and securing the replaceable battery 2. When battery 2 is damaged, the entire battery assembly does not need to be discarded; only the battery needs to be replaced. Battery 2 is preferably a high-energy-density, long-life lithium-ion battery to ensure a continuous and stable power supply for external devices.

[0033] The power adapter compartment 1 is equipped with a quick-connect coupling mechanism 3, which can employ a magnetic structure, mechanical snap-fit, or a combination of both to facilitate easy and rapid connection between the power adapter compartment 1 and the TWS earphones. Through the quick-connect coupling mechanism 3, users can quickly connect or disconnect the battery assembly from the external TWS earphones without complicated operations, significantly saving time and improving efficiency.

[0034] In summary, the battery component of this embodiment, through its quick-connect coupling mechanism and replaceable battery design, achieves rapid assembly with TWS earphones and continuous power supply. This effectively solves the problems of inconvenient charging and time-consuming assembly associated with TWS earphones, enabling the device to quickly obtain reliable power support and maintain continuous operation through convenient battery replacement. This greatly facilitates users and enhances the user experience of TWS earphones. Furthermore, the modular design of the battery component proposed in this embodiment overcomes the drawbacks of traditional built-in TWS earphone battery components. Previously, earphone repair was cumbersome, and if the battery component could not be repaired, the entire earphone had to be replaced, significantly increasing operating costs. Now, only the battery component needs to be repaired or replaced, effectively reducing operating costs.

[0035] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the power adapter case 1 includes a power adapter shell 11 that is detachably assembled with the TWS earphones, the power adapter shell 11 is provided with a replaceable battery 2, and the power adapter shell 11 is connected to a matching power cover 12.

[0036] In this embodiment, the power adapter shell 11, as the main body of the power adapter compartment 1, is made of lightweight, high-strength material. Its shape and size are designed to match the corresponding mounting position 4 on the TWS earphones to achieve detachable assembly. The power adapter shell 11 has a dedicated battery compartment inside for accommodating and securing the battery 2.

[0037] The power cover 12 matches the power adapter shell 11 and can be connected by snaps, screws, interference fits or other fastening methods to ensure that the battery 2 is securely fixed in the power adapter shell and to prevent external factors such as dust and moisture from entering.

[0038] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the quick-release coupling mechanism 3 includes an electrical coupling device 31 disposed between the power adapter shell 11 and the battery 2, and a quick-release structure 32 disposed on the power adapter shell 11 for detachable assembly with the TWS earphone. When the quick-release structure 32 is assembled with the TWS earphone, the electrical coupling device 31 is electrically connected to the portable wearable device.

[0039] Specifically, the electrical coupling device 31 includes a battery adapter plate 311 connected to the battery 2 on one side. Power connection terminals 312 are connected to both sides of the battery adapter plate 311. The power connection terminals 312 pass through and connect to the bottom of the power adapter housing 11, enabling simultaneous electrical connection with the TWS earphones upon assembly. In this embodiment, the battery adapter plate is designed with one side connected to the output terminal of the battery 2, and the other side connected to two or more power connection terminals 312. The battery adapter plate is made of a material with good electrical conductivity to ensure efficient power transmission. The power connection terminals 312 are located on both sides of the battery adapter plate 311 and pass through the bottom of the power adapter housing 11, corresponding to the corresponding interfaces on the TWS earphones. When the power adapter housing 1 is assembled with an external device, the power connection terminals automatically mate with the electrical interfaces on the TWS earphones, achieving electrical connection.

[0040] Furthermore, as a preferred embodiment of this solution and not a limitation, the quick-release structure 32 includes a magnetic suction device 321 disposed on the power adapter shell 11 for magnetic connection with the TWS earphones. In this embodiment, the magnetic suction device 321 can be installed on the outside of the power adapter shell 11 or fixedly installed inside the power adapter shell 11. It is preferably made of a strong magnetic material, such as a neodymium iron boron permanent magnet, which can achieve a quick and stable magnetic connection with the corresponding magnetic receiving component provided at the TWS earphone mounting position 4. This allows the battery assembly to be quickly and conveniently assembled onto the TWS earphones, and also to be easily disassembled, greatly improving the user's replacement efficiency. Moreover, since the magnetic suction device 321 is made of a strong magnetic material, it can provide a stable magnetic connection, ensuring that the battery assembly is not easily detached or loosened after assembly, thus improving the safety of use.

[0041] Furthermore, as a preferred embodiment of this solution and not a limitation, the magnetic attraction device 321 is disposed between the two power connection terminals 312. In this embodiment, the magnetic attraction device 321 is disposed between the two power connection terminals 312, more specifically, between the bottom of the battery adapter plate 311 and the power adapter housing 11. This arrangement allows the magnetic attraction device 321 to act directly on the bottom of the power adapter housing 11. When close to an external device, the magnetic force guides the power connection terminal 312 to accurately align with the electrical interface of the external device, greatly reducing interface misalignment caused by human operation or equipment shaking. This effectively ensures that each assembly achieves accurate electrical connection in one go, significantly improving the success rate of battery assembly and external device assembly, reducing power transmission failures caused by poor connection, ensuring that the external device can continuously and stably obtain power supply, and guaranteeing the normal operation of the equipment.

[0042] Furthermore, as a preferred embodiment of this solution and not a limitation thereof, the quick-install structure 32 includes an assembly groove 322 disposed along the outer periphery of the power adapter shell 11, the assembly groove 322 being adapted to the mounting position 4 of the TWS earphone.

[0043] In this embodiment, the assembly groove 322 can be designed as a recess, slide, or annular groove that matches the shape of the inner cavity of the mounting position 4. These structures ensure that the battery assembly can slide smoothly into or snap into the mounting position during assembly, while providing sufficient stability. It plays a role in precise positioning during assembly. When the battery assembly is brought close to an external device, the assembly groove 322 can guide the power adapter shell 11 to accurately embed into the corresponding mounting position 4 of the external device, avoiding assembly difficulties or unstable connections due to positional deviations. This makes the assembly between the battery assembly and the external device more accurate and reliable, ensuring the stability of power transmission and the tightness of the connection throughout use, reducing problems such as power interruption due to accidental loosening.

[0044] Furthermore, as a preferred embodiment of this solution and not a limitation, the side wall of the assembly groove 322 is provided with a positioning groove 323, which matches the corresponding positioning part 41 provided in the mounting position 4. In this embodiment, the positioning groove 323 can be designed as a groove, protrusion, or other form of snap-fit ​​structure that matches the shape of the positioning part 41, providing additional precise positioning assurance for the assembly of the battery component and the TWS earphone. During the assembly process, when the assembly groove 322 is inserted along the mounting position 4, the positioning groove 323 can accurately lock the positioning part 41, so that the power adapter shell 11 can be precisely fixed in all directions, avoiding slight displacement caused by external forces, vibrations, etc. during use. Compared with relying solely on the matching of the assembly groove 322 and the mounting position 4, it can more accurately ensure the relative positional relationship between the battery component and the external device, ensuring that key parts such as the power connection terminal 312 are always accurately connected, maintaining stable and reliable power transmission, and greatly reducing the probability of problems such as poor contact and power interruption caused by assembly deviation.

[0045] This positioning and engagement method acts like an additional "lock" to the connection between the battery component and the TWS earbuds. The positioning groove 323 and the positioning part 41 interlock, greatly enhancing the stability of the connection. Even when the user is engaged in strenuous exercise, such as running or working out, or is subjected to an accidental impact, the battery component is less likely to detach or loosen from the TWS earbuds. This ensures that the earbuds receive continuous and stable power support under various complex usage scenarios, extending the lifespan of the battery component and the overall earbud assembly structure, and improving the user's sense of security and reliability during use.

[0046] Furthermore, as a preferred embodiment of this solution and not a limitation, the outer periphery of the power cover 12 is provided with anti-slip textures 121. These anti-slip textures 121 can be fine stripe textures or interlaced grid textures, increasing the roughness of the power cover surface, allowing users to obtain better friction when gripping or operating the battery assembly, effectively preventing problems such as the battery assembly falling off or being damaged due to slipping. In addition, the anti-slip textures not only provide a better grip, but also make it easier and more accurate for users to disassemble, replace the battery assembly or perform other operations, improving operational efficiency.

[0047] Example 2: Please refer to Figures 6 to 7 This embodiment provides a TWS earphone, including a mounting position 4 for connecting an external power source. The mounting position 4 is detachably connected to a battery component as described in Embodiment 1. Due to their small size, TWS earphones have limited internal space to accommodate a battery, often resulting in relatively weak battery life. By providing a mounting position 4 for connecting the aforementioned battery component, the earphone can be quickly and conveniently recharged when its battery is low, greatly extending the usage time of the TWS earphone. This solves the pain point of frequent charging or insufficient battery affecting usage, and improves the convenience and experience of using TWS earphones in scenarios such as long-distance travel and outdoor sports.

[0048] It should be noted that, since it includes all the technical solutions disclosed in Embodiment 1, the TWS earphone also possesses all the beneficial effects of Embodiment 1. For example, thanks to the quick-release coupling mechanism 3 of the battery component proposed in Embodiment 1, a quick and precise detachable connection can be achieved between the battery component and the mounting position 4 of the TWS earphone. Users do not need complicated operations or professional tools; they can complete the assembly or disassembly process with simple operations. In emergency situations, the earphone can be quickly recharged, allowing it to be used again quickly.

[0049] Working principle of this utility model:

[0050] This utility model provides a battery assembly that can efficiently and conveniently power TWS earbuds. Its core lies in the design of the power adapter compartment, made of lightweight and durable materials, which houses a replaceable, high-energy-density, long-life lithium-ion battery to ensure a continuous and stable power supply. The quick-connect coupling mechanism on the power adapter compartment is crucial for connection, comprising an electrical coupling device and a quick-connect structure. The electrical coupling device achieves electrical connection with the battery through a battery adapter plate and a power connection terminal. When the power adapter compartment is assembled with an external device, the power connection terminal automatically aligns with the device's electrical interface to transmit power. The quick-connect structure employs a magnetic suction device and an assembly slot. The magnetic suction device provides magnetic guidance to ensure accurate alignment of the power connection terminal and a secure connection; the assembly slot and positioning slot enable precise positioning and secure assembly with the external device. This design allows the battery assembly to be easily and quickly assembled with TWS earbuds without complex operations, greatly saving time and improving efficiency. Users can easily replace the battery as needed and quickly connect the battery pack via the quick-connect coupling mechanism to continuously power the headphones, bringing great convenience and practicality.

[0051] The working principle of the TWS earphone in Example 2 is based on the battery component in Example 1. By setting a mounting position for an external battery component, it is possible to quickly and conveniently replenish the power when the earphone battery is low, thereby extending the earphone's usage time and improving user convenience and experience.

[0052] The above are implementation methods provided in conjunction with specific content, and it is not intended that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. A battery assembly, characterized in that: Includes a power adapter compartment (1), which has a replaceable battery (2) built in it, and the power adapter compartment (1) is equipped with a quick-connect coupling mechanism (3) to enable quick assembly with TWS earphones and provide power. The power adapter compartment (1) includes a power adapter shell (11) that can be detachably assembled with the TWS earphones. The power adapter shell (11) contains a replaceable battery (2), and the power adapter shell (11) is connected to a matching power cover (12). The quick-release coupling mechanism (3) includes an electrical coupling device (31) disposed between the power adapter shell (11) and the battery (2), and a quick-release structure (32) disposed on the power adapter shell (11) for detachable assembly with the TWS earphone. When the quick-release structure (32) is assembled with the TWS earphone, the electrical coupling device (31) is electrically connected to the TWS earphone.

2. A battery assembly according to claim 1, characterized in that, The electrical coupling device (31) includes a battery adapter plate (311) connected to the battery (2) on one side. Power connection terminals (312) are connected to both sides of the battery adapter plate (311). The power connection terminals (312) pass through the bottom of the power adapter shell (11) and are connected thereto, so as to achieve electrical connection synchronously with the TWS earphones when they are assembled.

3. A battery assembly according to claim 2, characterized in that, The quick-release structure (32) includes a magnetic suction device (321) disposed on the power adapter shell (11) that can be magnetically connected to the TWS earphone.

4. A battery assembly according to claim 3, characterized in that, The magnetic attraction device (321) is located between the two power connection terminals (312).

5. A battery assembly according to claim 2, characterized in that, The quick-install structure (32) includes an assembly groove (322) provided along the outer periphery of the power adapter shell (11), the assembly groove (322) being adapted to the mounting position (4) of the TWS earphone.

6. A battery assembly according to claim 5, characterized in that, The side wall of the assembly slot (322) is provided with a positioning slot (323), which matches the corresponding positioning part (41) provided in the mounting position (4).

7. A battery assembly according to any one of claims 1-6, characterized in that, The outer periphery of the power supply cover (12) is provided with anti-slip texture (121).

8. A TWS earphone, comprising a mounting position (4) for connecting an external power source, characterized in that, The mounting position (4) is detachably connected to a battery assembly as described in any one of claims 1-7.