Elastic earphone with detachable battery
The flexible, removable battery structure solves the aging problem caused by non-removable headphone batteries, enabling quick battery replacement, extending headphone lifespan, reducing electronic waste, and improving user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-29
- Publication Date
- 2026-03-17
AI Technical Summary
The current non-removable design of headphone batteries leads to shortened battery life after battery aging, high repair threshold and cost, serious waste of resources, and poor user experience.
Employing a flexible, removable battery structure, the earphone body, quick-release mechanism, locking mechanism, unlocking mechanism, and ejection mechanism work together to enable users to quickly, easily, and without the need for professional tools replace the battery themselves.
It enables quick and easy battery replacement, extends the lifespan of headphones, reduces electronic waste, and enhances user experience and environmental value.
Smart Images

Figure CN121692003A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of earphones, and particularly relates to an earphone structure. BACKGROUND
[0002] In recent years, with the rapid development of wireless communication technology and audio codec technology, portable audio devices such as true wireless stereo (TWS) earphones and Bluetooth headsets have become extremely popular and have become an important part of people's daily life and work. These devices are highly integrated and miniaturized, providing great convenience and excellent audio experience for users.
[0003] However, in the prior art, in order to pursue the overall appearance, waterproof and dustproof performance and compact volume of the product, most earphones adopt a non-detachable embedded battery design. The battery is permanently sealed or fixed in the earphone cavity by strong adhesive, and the user cannot access or replace it in a simple way. When the earphone battery is used for a long time and reaches its designed cycle life (e.g. 300-500 full charge and discharge cycles), it is inevitable that the chemical active substances will decay, the internal resistance will increase, and the capacity will significantly decrease, resulting in a dramatic reduction in earphone battery life, and even the earphone cannot be turned on normally or maintained stably.
[0004] Currently, for earphones with aging batteries, the common solution is to return to the factory for repair or seek third-party professional repair services. This process has many significant defects:
[0005] High repair threshold: The disassembly process often requires professional tools such as special pry bars, hot air guns, and degluing agents, and has high requirements for the skills of the operator, making it difficult for ordinary users to complete the repair themselves.
[0006] High repair cost and inconvenience: Repairing means that the user needs to bear a certain repair cost and face a waiting time of several days to several weeks during which the earphone cannot be used, affecting the user experience.
[0007] High device abandonment rate: Due to the high repair cost, which may be close to or exceed the residual value of the earphone, or the user's dislike of the cumbersome repair process, a large number of earphones that are only aging and have other functions are directly discarded by the user. This not only causes unnecessary economic losses, but also contradicts the growing global environmental pressure to handle electronic waste, and does not conform to the concept of green and sustainable development.
[0008] Waste of resources: The core audio components, mainboards, and chips of earphones usually have a much longer service life than the battery. The disposal of the entire machine due to the non-replaceability of the battery, which is a consumable part, is essentially a serious waste of resources.
[0009] Although a very small number of models on the market claim to have a replaceable battery design, their structures are often still quite complex, requiring tools or multiple steps to disassemble, and do not fundamentally provide a quick, safe, user-friendly, and standardized battery replacement solution.
[0010] Therefore, there is an urgent need for an innovative headphone structure design that enables users to quickly, easily, and without the need for professional tools replace the battery, thereby significantly extending the effective lifespan of the headphones, reducing electronic waste, and enhancing the environmental value of the product and the economic benefits for users. Summary of the Invention
[0011] To address the aforementioned issues, this paper presents a flexible, removable battery-equipped earphone that enables quick, easy, and tool-free user-replacement of the battery, thereby significantly extending the earphone's effective lifespan and reducing electronic waste.
[0012] To achieve the above objectives, the technical solution of the present invention is as follows.
[0013] A flexible battery-removable earphone, characterized in that it comprises:
[0014] The earphone body has a battery storage slot;
[0015] The quick-release component is inserted into the battery receiving slot in a first direction and can be withdrawn from the battery receiving slot in a second direction opposite to the first direction, forming an installation space with the battery receiving slot.
[0016] The battery is mounted on the quick-release mechanism and located in the mounting space, and the battery is electrically connected to the main body of the earphone.
[0017] A locking element is installed on the quick-release element and connected to the headphone body to form an anti-retraction force that prevents the quick-release element from exiting the battery compartment in a second direction;
[0018] The unlocking component is mounted on the quick-release component and connected to the locking component to trigger the locking component to at least partially disengage from the headphone body, thereby reducing the anti-retrieval force;
[0019] An ejector, installed on the earphone body, provides a force in the second direction for the quick-release mechanism to eject from the battery holder. During the initial battery installation, the battery is mounted on the quick-release mechanism, which is inserted into the earphone body in the first direction. After installation, the battery is electrically connected to the earphone body. At this point, the anti-removal force is greater than the ejection force, allowing the quick-release mechanism to be stably mounted on the earphone body along with the battery. When disassembly is required, an unlocking mechanism is triggered, which moves a locking mechanism, reducing the anti-removal force. When the anti-removal force is less than the ejection force, the battery automatically ejects with the quick-release mechanism, facilitating battery replacement. In this invention, the direction in which the quick-release mechanism inserts into the battery holder is defined as the first direction, and the direction in which it ejects from the battery holder is defined as the second direction. Electrical connection between the earphone body and the battery is existing technology with many implementation methods, which will not be elaborated here. A simple approach is to extend a conductive contact point from the motherboard inside the earphone body to contact the battery.
[0020] In this invention, the combination of the earphone body, quick-release component, locking component, unlocking component, and ejection component enables the quick installation and removal of the battery and quick-release component, allowing for quick, easy, and tool-free user replacement of the battery, thereby significantly extending the effective lifespan of the earphone and reducing electronic waste.
[0021] Furthermore, the locking member includes a fixing part and an elastic part. The fixing part is mounted on the quick-release member, and one end of the elastic part is connected to the fixing part. At least a portion of the elastic part extends out of the quick-release member to form a retaining end for abutting against the earphone body. When the battery is installed on the earphone body along with the quick-release member, the elastic part abuts against the inner wall of the battery receiving slot, thereby generating friction with the earphone body, which acts as an anti-retraction force. Alternatively, a groove or protrusion can be provided in the battery receiving slot to cooperate with the retaining end, forming a snap-fit structure, which can also generate an anti-retraction force. The fixing part can be made of a flexible material such as a common metal sheet, and the elastic part can be a metal spring.
[0022] Furthermore, the quick-release component is provided with a mounting groove, the fixing part is engaged in the mounting groove, and the abutting end of the elastic part extends out of the mounting groove. This structure facilitates the installation and removal of the locking component, thus simplifying assembly and subsequent maintenance.
[0023] Furthermore, the fixing part is provided with a mounting hole, one end of the elastic part is fixedly connected to the mounting hole, and the other end of the elastic part is suspended. The unlocking member is installed on the quick-release member, and the unlocking member abuts against the other end of the elastic part to move the abutting end closer to or away from the earphone body. When the unlocking member presses the other end of the elastic part in one direction, the elastic part will deform, and the abutting end will move away from the earphone body with the deformation of the elastic part, thereby reducing the anti-retrieval force between the abutting end and the earphone body, or even directly separating the two. At this time, the quick-release member will be removed from the earphone body by the action of the ejection member, thus facilitating battery replacement. Conversely, when the pressure of the unlocking member on the other end of the elastic part is released, the elastic part will rebound and reconnect with the earphone body to form sufficient anti-retrieval force.
[0024] Furthermore, the unlocking component includes a trigger portion and a supporting portion. One end of the supporting portion is connected to the trigger portion, and the other end of the supporting portion extends into the mounting hole and abuts against the other end of the elastic portion. The trigger portion can be used to receive external force, thereby driving the supporting portion to move and thus compressing the elastic portion. The supporting portion extending into the mounting hole allows the mounting hole to guide the supporting portion, making the entire unlocking process more stable. Here, the width of the mounting hole can be set to be the same as or slightly larger than the supporting portion.
[0025] Furthermore, the locking components are in two sets, located at opposite ends of the battery. There are also two abutment portions, each connected to one end of the trigger portion, and each abutment portion abuts against the elastic portion of one set of locking components. The two sets of locking components make the locking structure more stable and reduce the difficulty of disassembly. The unlocking component can be a long, curved spring, with the middle portion serving as the trigger portion and both ends serving as abutment portions.
[0026] Furthermore, the quick-release component includes a mounting block and a wrapping block, with the wrapping block covering the mounting block and the mounting groove disposed on the mounting block. The mounting block is used to install the locking and unlocking components, while the wrapping block is used to wrap around and connect to the mounting block, ensuring that the quick-release component, after being installed on the earphone body, is flush with the outer surface contour of the earphone body, guaranteeing the flatness and stability of the structure. Designing the quick-release component as a part with two independent functions also facilitates manufacturing and assembly.
[0027] Furthermore, both the mounting block and the wrapping block are U-shaped. The U-shaped groove itself can form a structure that can accommodate at least part of the battery, eliminating the need for other mounting structures. Moreover, the quick-release mechanism forms a structure similar to a regular drawer on a table, allowing for easy installation and removal of the battery along with the earphone body.
[0028] Furthermore, the quick-release component is provided with an operating through hole, the position of which corresponds to the trigger part. The operating through hole allows the user to insert a needle or a needle-like structure into it and squeeze the trigger part, thereby moving the holding part and unlocking the device. The operating through hole can pass through the mounting block and the wrapping block sequentially, thus corresponding to the trigger part.
[0029] Furthermore, the ejector includes an ejector body, a holding rod, and an elastic element. The ejector body has a groove. One end of the holding rod is rotatably connected to the groove. The elastic element is installed in the groove, with one end abutting against the groove and the other end abutting against the other end of the holding rod, thereby driving the holding rod to move in the second direction against the battery or quick-release component. The elastic element is preferably a spring.
[0030] Furthermore, the periphery of the fixing part is provided with multiple spring clips for abutting against the quick-release component. The spring clips allow the fixing part to be more stable after being installed on the quick-release component.
[0031] The beneficial effects of this invention are that, through the cooperation of the earphone body, quick-release component, locking component, unlocking component, and ejection component, the battery and quick-release component can be quickly installed and removed, enabling users to quickly and easily replace the battery without the need for professional tools, thereby significantly extending the effective service life of the earphone and reducing electronic waste. Attached Figure Description
[0032] Figure 1 This is a schematic diagram of the first angle structure of the present invention.
[0033] Figure 2 This is a schematic diagram of the second angle structure of the present invention.
[0034] Figure 3 This is a schematic diagram of the first angle structure of the invention with the middle shell hidden.
[0035] Figure 4 This is a schematic diagram of the second angle structure of the invention, which conceals the middle shell.
[0036] Figure 5 This is a schematic diagram of the first exploded structure of the present invention.
[0037] Figure 6 This is a schematic diagram of the second explosive structure of the present invention.
[0038] Figure 7 This is a first exploded structural diagram of the locking component, unlocking component, and exiting component of the present invention.
[0039] Figure 8 This is a second exploded structural diagram of the locking, unlocking, and exiting components of the present invention.
[0040] 1. Earphone body; 11. Battery compartment; 12. Top shell; 13. Middle shell; 14. Bottom shell;
[0041] 2. Quick-release parts; 21. Mounting slot; 22. Mounting block; 23. Wrapping block;
[0042] 3. Battery;
[0043] 4. Locking element; 41. Fixing part; 42. Elastic part; 411. Mounting hole; 421. Supporting end;
[0044] 5. Unlocking component; 51. Triggering part; 52. Supporting part;
[0045] 6. Exit component; 61. Exit component body; 62. Support rod; 63. Elastic component; 611. Groove;
[0046] 7. Operating through hole;
[0047] 8. Shrapnel;
[0048] 9. First PCB board;
[0049] 10. Second PCB board;
[0050] 20. Speaker. Detailed Implementation
[0051] To make the objectives, technical solutions, and advantages of this invention clearer, the invention 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 and not intended to limit the invention.
[0052] See Figures 1-8 This embodiment provides a flexible battery-removable earphone, including:
[0053] The earphone body 1 has a battery storage slot 11;
[0054] The quick-release component 2 is inserted into the battery receiving slot 11 in the first direction and can be withdrawn from the battery receiving slot 11 in the second direction opposite to the first direction, thus forming an installation space with the battery receiving slot 11.
[0055] Battery 3 is installed on quick-release piece 2 and is located in the installation space, and battery 3 is electrically connected to the headphone body 1;
[0056] Locking member 4 is installed on quick release member 2 and connected to the headphone body 1 to form an anti-retraction force to prevent quick release member 2 from exiting the battery receiving slot 11 in the second direction;
[0057] The unlocking component 5 is installed on the quick-release component 2 and connected to the locking component 4 to trigger the locking component 4 to at least partially disengage from the headphone body 1, thereby reducing the anti-retrieval force;
[0058] The ejector 6 is installed on the earphone body 1 and provides the quick-release component 2 with a force to eject from the battery receiving slot 11 along the second direction. When installing the battery 3 for the first time, the battery 3 is installed on the quick-release component 2, which is inserted into the earphone body 1 along the first direction. After installation, the battery 3 is electrically connected to the earphone body 1. At this time, the anti-removal force is greater than the ejection force, so the quick-release component 2 and the battery 3 can be stably installed on the earphone body 1. When disassembly is required, the unlocking component 5 is triggered, which moves the locking component 4, reducing the anti-removal force. When the anti-removal force is less than the ejection force, the battery 3 will automatically pop out with the quick-release component 2, facilitating battery replacement. In this invention, the direction in which the quick-release component 2 inserts into the battery receiving slot 11 is defined as the first direction, and the direction in which the quick-release component 2 exits from the battery receiving slot 11 is defined as the second direction.
[0059] In this invention, the quick-release component 2, locking component 4, unlocking component 5, and ejection component 6 work together to enable the quick installation and removal of the battery 3 and the quick-release component 2. This allows for quick, easy, and tool-free replacement of the battery 3 by the user, thereby significantly extending the effective lifespan of the headphones and reducing electronic waste.
[0060] In this embodiment, the locking member 4 includes a fixing part 41 and an elastic part 42. The fixing part 41 is mounted on the quick-release member 2, and one end of the elastic part 42 is connected to the fixing part 41. At least a portion of the elastic part 42 extends out of the quick-release member 2 to form a holding end 421 for abutting against the earphone body 1. When the battery 3 is installed on the earphone body 1 along with the quick-release member 2, the elastic part 42 abuts against the inner wall of the battery receiving groove 11, thereby generating friction with the earphone body 1, which acts as an anti-retraction force. Alternatively, a groove or protrusion can be provided in the battery receiving groove 11 to cooperate with the holding end, forming a snap-fit structure, which can also generate an anti-retraction force. The fixing part 41 can be made of an elastic material such as a common metal sheet, and the elastic part 42 can be a metal spring.
[0061] In this embodiment, the quick-release component 2 is provided with a mounting groove 21, the fixing part 41 is snapped into the mounting groove 21, and the abutting end 421 of the elastic part 42 extends out of the mounting groove 21. The above structure facilitates the installation and removal of the locking component 4, that is, it facilitates assembly and subsequent maintenance.
[0062] In this embodiment, the fixing part 41 is provided with a mounting hole 411. One end of the elastic part 42 is fixedly connected to the mounting hole 411, and the other end of the elastic part 42 is suspended. The unlocking member 5 is installed on the quick-release member 2, and the unlocking member 5 abuts against the other end of the elastic part 42 to drive the holding end 421 closer to or away from the earphone body 1. When the unlocking member 5 presses the other end of the elastic part 42 in one direction, the elastic part 42 will deform, and the holding end 421 will move away from the earphone body 1 with the deformation of the elastic part 42, thereby reducing the anti-retraction force between the holding end 421 and the earphone body 1, or even directly separating the two. At this time, the quick-release member 2 will be released from the earphone body 1 under the action of the ejector 6, thereby facilitating battery replacement. Conversely, when the pressure of the unlocking member 5 on the other end of the elastic part 42 is released, the elastic part 42 will rebound and reconnect with the earphone body 1 to form sufficient anti-retraction force.
[0063] In this embodiment, the unlocking component 5 includes a trigger part 51 and a supporting part 52. One end of the supporting part 52 is connected to the trigger part 51, and the other end of the supporting part 52 extends into the mounting hole 411 and abuts against the other end of the elastic part 42. The trigger part 51 can be used to receive external force, thereby driving the supporting part 52 to move, and then squeezing the elastic part 42. The supporting part 52 extending into the mounting hole 411 allows the mounting hole 411 to guide the supporting part 52, making the entire unlocking process more stable. Here, the width of the mounting hole 411 can be set to be the same as or slightly larger than the supporting part 52.
[0064] In this embodiment, there are two sets of locking members 4, located at both ends of the battery 3. There are also two abutment portions 52, each connected to both ends of the trigger portion 51, and each abutment portion 52 abuts against the elastic portion 42 of one set of locking members 4. The two sets of locking members 4 make the locking structure more stable and reduce the difficulty of disassembly. The unlocking member 5 can be a long, curved spring piece, with the middle portion serving as the trigger portion 51 and both ends serving as abutment portions 52.
[0065] In this embodiment, the quick-release component 2 includes a mounting block 22 and a wrapping block 23. The wrapping block 23 wraps around the mounting block 22, and a mounting groove 21 is provided on the mounting block 22. The mounting block 22 is used to mount the locking component 4 and the unlocking component 5, and the wrapping block 23 is used to wrap around and connect to the mounting block 22, ensuring that the quick-release component 2, after being installed on the earphone body 1, is flush with the outer surface contour of the earphone body 1, guaranteeing the flatness and stability of the structure. Designing the quick-release component 2 as a part with two independent functions also facilitates manufacturing and assembly.
[0066] In this embodiment, both the mounting block 22 and the wrapping block 23 are U-shaped. The U-shaped groove itself can form a structure that can accommodate at least part of the battery, eliminating the need for other mounting structures. Moreover, the quick-release component forms a structure similar to a regular drawer on a table, allowing for the installation and removal of the battery 3 from the headphone body 1.
[0067] In this embodiment, the quick-release component 2 is provided with an operation through hole 7, which corresponds to the trigger part 51. The operation through hole 7 allows the user to insert a needle or a needle-like structure into the operation through hole and squeeze the trigger part 51, thereby moving the holding part 52 and achieving the unlocking function. The operation through hole 7 can pass through the mounting block and the wrapping block 23 in sequence, thus corresponding to the trigger part 51.
[0068] In this embodiment, the ejector 6 includes an ejector body 61, a holding rod 62, and an elastic member 63. The ejector body 61 has a groove 611. One end of the holding rod 62 is rotatably connected within the groove 611. The elastic member 63 is installed within the groove 611, with one end abutting against the groove 611 and the other end abutting against the other end of the holding rod 62, thereby driving the holding rod 62 to abut against the battery 3 or the quick-release piece 2 in a second direction. The elastic member 63 is preferably a spring.
[0069] In this embodiment, a plurality of spring tabs 8 are provided around the periphery of the fixing part 41 for abutting against the quick-release piece 2. The spring tabs 8 make the fixing part 41 more stable after it is installed on the quick-release piece 2.
[0070] In this embodiment, the earphone body 1 includes an upper shell 12, a middle shell 13, and a lower shell 14. The upper shell 12 covers the upper part of the middle shell 13, and the two together form a cavity for housing the first PCB board 9. The lower shell 14 covers the lower part of the middle shell 12, and the two together form a cavity for housing the second PCB board 10 and the speaker 20, etc. A battery receiving slot 11 is formed on the side of the middle shell 13, and the battery 3 is electrically connected to both the first PCB board 9 and the second PCB board 10. The above structure makes reasonable use of the upper, lower, and surrounding space of the middle shell 13, and the overall structure is compact and reasonable.
[0071] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. An elastic battery detachable earphone, characterized in that, The earphone comprises: an earphone body having a battery accommodating groove; a quick release member inserted into the battery accommodating groove in a first direction and capable of being withdrawn from the battery accommodating groove in a second direction opposite to the first direction, and forming an installation space together with the battery accommodating groove; a battery installed on the quick release member and located in the installation space, and electrically connected with the earphone body; a locking member installed on the quick release member and connected with the earphone body to form an anti-withdrawal force preventing the quick release member from being withdrawn from the battery accommodating groove in the second direction; an unlocking member installed on the quick release member and connected with the locking member to trigger the locking member to at least partially separate from the earphone body, thereby reducing the anti-withdrawal force; a withdrawal member installed on the earphone body and providing a withdrawal force for the quick release member to be withdrawn from the battery accommodating groove in the second direction.
2. The flexible battery detachable earphone of claim 1, wherein, The locking member comprises a fixed part installed on the quick release member and an elastic part having one end connected with the fixed part and at least part of the elastic part extending out of the quick release member to form an abutting end for abutting against the earphone body.
3. The flexible battery detachable earphone of claim 2, wherein, The quick release member is provided with an installation groove, the fixed part is clamped in the installation groove, and the abutting end of the elastic part extends out of the installation groove.
4. The flexible battery detachable earphone of claim 2, wherein, The fixed part is provided with an installation hole, one end of the elastic part is fixedly connected in the installation hole, and the other end of the elastic part is suspended, the unlocking member is installed on the quick release member, and the unlocking member abuts against the other end of the elastic part to drive the abutting end to move close to or away from the earphone body.
5. The flexible battery detachable earphone of claim 4, wherein, The unlocking member comprises a trigger part and an abutting part, one end of the abutting part is connected with the trigger part, and the other end of the abutting part extends into the installation hole and abuts against the other end of the elastic part.
6. The flexible battery detachable earphone of claim 5, wherein, The locking member is two groups, the two groups of locking members are respectively located at two ends of the battery, the abutting part is two, the two abutting parts are respectively connected at two ends of the trigger part, and each abutting part abuts against the elastic part of one group of locking members.
7. The flexible battery detachable earphone of claim 3, wherein, The quick release member comprises an installation block and a wrapping block, the wrapping block is wrapped outside the installation block, and the installation groove is arranged on the installation block.
8. The flexible battery detachable earphone of claim 5, wherein, The quick release member is provided with an operation through hole, and the operation through hole is located corresponding to the trigger part.
9. The flexible battery detachable earphone of claim 1, wherein, The withdrawal member comprises a withdrawal member body, an abutting rod and an elastic member, the withdrawal member body is provided with a groove body, one end of the abutting rod is rotationally connected in the groove body, the elastic member is installed in the groove body, one end of the elastic member abuts against the groove body, and the other end of the elastic member abuts against the other end of the abutting rod to drive the abutting rod to abut against the battery or the quick release member to move in the second direction.
10. The flexible battery detachable earphone of claim 2, wherein, The fixed part is provided with a plurality of elastic sheets on the circumferential side for abutting against the quick release member.