Screw cap type earphone with detachable battery

Abstract

The invention belongs to the technical field of earphones, and particularly relates to a screw cap type battery detachable earphone, which comprises an earphone main body with a battery accommodating groove; the screw cap is rotationally connected to the battery accommodating groove, and an installation space is defined by the screw cap and the battery accommodating groove; and the battery is mounted in the mounting space and is electrically connected with the earphone main body. According to the earphone, the screw cap structure is matched with the earphone main body, so that the battery can be conveniently mounted and dismounted, and the earphone can be continuously used only by replacing the battery after the battery is used up. And the structure is simple, and the battery is easy to replace without professionals.

Description

Technical Field

[0001] This invention belongs to the field of headphone technology, and specifically relates to a headphone structure. Background Technology

[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 over-ear Bluetooth headphones have become extremely popular and an important part of people's daily lives and work. These devices are highly integrated and miniaturized, providing users with great convenience and an excellent audio experience.

[0003] However, in the current technology, in order to pursue a seamless product appearance, waterproof and dustproof performance, and a compact size, most headphones adopt a non-removable embedded battery design. The battery is permanently sealed or fixed to the headphone cavity with strong adhesive, making it impossible for users to easily access or replace it. When the headphone battery undergoes long-term use and reaches its designed cycle life (e.g., 300-500 full charge-discharge cycles), it inevitably experiences aging phenomena such as chemical active material degradation, increased internal resistance, and a significant decrease in capacity. This leads to a sharp reduction in the headphone's battery life, and may even prevent it from turning on normally or maintaining stable operation.

[0004] Currently, the typical solution for headphones with aging batteries is to return them to the factory for repair or seek professional third-party repair services. This process has several significant drawbacks:

[0005] High maintenance threshold: The disassembly process often requires specialized tools such as pry bars, heat guns, and adhesive removers, and requires a high level of skill from the operators, making it difficult for ordinary users to complete on their own.

[0006] Repair costs and inconvenience: Sending the headphones in for repair means that users have to bear certain repair costs and face a waiting time of several days to several weeks, during which time the headphones cannot be used, affecting the user experience.

[0007] High device abandonment rate: Because repair costs may approach or exceed the residual value of the headphones, or because users find the repair process cumbersome, a large number of headphones that are otherwise fully functional but only suffer from battery aging are simply discarded by users. This not only causes unnecessary economic losses, but also contradicts the growing global pressure on environmentally friendly disposal of electronic waste and is inconsistent with the concept of green and sustainable development.

[0008] Resource waste: The core audio components, motherboard, and chips of headphones typically have a lifespan far exceeding that of the battery. The fact that the entire device becomes unusable due to the non-replaceability of the battery, a consumable component, 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 screw-top removable battery 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 screw-top removable battery earphone, characterized in that it comprises:

[0014] The main body of the earphone has a battery compartment.

[0015] The screw cap is rotatably connected to the battery compartment, forming an installation space with the battery compartment.

[0016] The battery is installed in the mounting space and is electrically connected to the headphone body.

[0017] In this invention, the combination of the screw cap structure and the earphone body facilitates the installation and removal of the battery. Once the battery is depleted, it can be easily replaced for continued use. Furthermore, the structure is simple, battery replacement is easy, and no professional personnel are required for battery replacement.

[0018] Furthermore, the earphone also includes a PCB board and a first conductive part and a second conductive part corresponding to the positive and negative terminals of the battery. The PCB board, the first conductive part, and the second conductive part are all electrically connected to the battery. The PCB board and the first conductive part are mounted on a screw cap, while the second conductive part is mounted on the earphone body. This structure allows the battery to be removed and replaced simply by unscrewing the screw cap, enabling normal battery operation. This further simplifies the structure and reduces the difficulty of battery replacement.

[0019] Furthermore, the screw cap includes a top wall and a side wall, which, when connected, form at least a portion of the mounting space. A first mounting groove is provided on the top wall, and a second and a third mounting groove are provided on the side wall. The first and second mounting grooves are connected, as are the second and third mounting grooves. The PCB board is mounted in at least one of the first and second mounting grooves, and the first conductive part is mounted in the third mounting groove. The PCB board is electrically connected to the first conductive part through the second mounting groove. Preferably, the top wall and side wall are integrally connected, and the PCB board is preferably a flexible FPC. This groove structure allows the PCB board and the first conductive part to be mounted on the screw cap without interfering with the battery placement.

[0020] Furthermore, the sidewall has a top end and a bottom end that are oppositely disposed, the top end of the sidewall being connected to the top end, and the third mounting groove being located at the bottom end and penetrating through the bottom end, so that the first conductive part, after being installed in the third mounting groove, protrudes from the bottom end and is electrically connected to one of the poles of the battery. This structure allows for direct electrical connection to the battery after the cap is screwed on; the structure is simple and stable due to the presence of the groove.

[0021] Furthermore, the outer periphery of the top wall is provided with an anti-slip structure, and after the screw cap is attached to the earphone body, the anti-slip structure at least partially protrudes circumferentially from the earphone body. The anti-slip structure can be an anti-slip groove or a protrusion, or other structures that can achieve anti-slip. Since the earphone is small, the anti-slip structure can further reduce the difficulty of battery replacement. The fact that the anti-slip structure at least partially protrudes circumferentially from the earphone body also makes it easier for the hand to grip the anti-slip structure, reducing the friction between the earphone body and the hand when twisting the screw cap, thus reducing the interference of the earphone body with disassembly.

[0022] Furthermore, an L-shaped fixing groove is provided on the outer periphery of the sidewall, and a fixing protrusion that mates with the fixing groove is provided in the battery receiving groove. A positioning structure is also provided in the fixing groove to maintain a stable connection between the fixing groove and the fixing protrusion. The positioning structure can be a spring, or a combination of a positioning protrusion and a groove. When the positioning structure is a spring, one end of the spring abuts against the screw cap, and the other end abuts against the earphone body, providing friction to the fixing groove and the fixing protrusion to prevent easy rotation. When the positioning structure is a positioning protrusion and a groove, the positioning protrusion can be located on the fixing protrusion, and the positioning groove can be located in the fixing groove. When the fixing protrusion extends into the fixing groove and rotates to engage, the positioning protrusion will engage in the positioning groove, providing an anti-retraction function between the fixing groove and the fixing protrusion.

[0023] Furthermore, the first conductive part includes a touch contact electrode and a battery positive electrode connected to the positive terminal of the battery. Both the touch contact electrode and the battery positive electrode are mounted in a third mounting slot and are electrically connected to the PCB board. The touch contact electrode enables the earphone to achieve touch sensing functionality, while the battery positive electrode is a conventional conductive electrode.

[0024] Furthermore, the earphone body also includes a main control board. The second conductive part includes a conductive electrode and a battery negative terminal connected to the negative terminal of the battery. Both the conductive electrode and the battery negative terminal are electrically connected to the main control board. The conductive electrode is also electrically connected to the touch contact electrode and the battery positive terminal. Preferably, both the conductive electrode and the battery negative terminal are spring-loaded structures, which can achieve both conductivity and auxiliary battery fixation.

[0025] Furthermore, the third mounting slot is provided with multiple first positioning holes, and the PCB board is provided with a positioning part, which is provided with second positioning holes corresponding to the positions of the first positioning holes. Positioning posts are provided on both the touch contact electrode and the battery positive electrode, and the positioning posts pass through the first and second positioning holes to position the touch contact electrode and the battery positive electrode against the PCB board. This positioning structure ensures the stability of the connection while allowing the touch contact electrode and the battery positive electrode to be electrically connected to the PCB board, preventing displacement and poor contact caused by vibration or other factors.

[0026] Furthermore, a handle extends from one side of the earphone body, forming a first clearance notch with the earphone body and a second clearance notch with the screw cap. The design of the handle and clearance notch facilitates gripping and force application, making it easier to wear and reducing the difficulty of installing and removing the screw cap when changing batteries.

[0027] The advantages of this invention are that the combination of the screw cap structure and the earphone body facilitates the installation and removal of the battery, and once the battery is depleted, it can be replaced to continue use. Furthermore, the structure is simple, battery replacement is easy, and no professional personnel are required to replace the battery. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the first angle structure of the present invention.

[0029] Figure 2 This is a schematic diagram of the second angle structure of the present invention.

[0030] Figure 3 This is a schematic diagram of the first exploded structure of the present invention.

[0031] Figure 4 This is a schematic diagram of the second explosive structure of the present invention.

[0032] Figure 5This is a structural diagram of the present invention with the main body of the earphone hidden.

[0033] Figure 6 yes Figure 5 A magnified view of a section at point C.

[0034] Figure 7 This is a schematic diagram of the screw cap and PCB board of the present invention.

[0035] A. Top; B. Bottom;

[0036] 1. Earphone body; 11. Battery compartment; 12. Main control board; 111. Fixing protrusion;

[0037] 2. Screw cap; 21. Top wall; 22. Side wall; 211. First mounting groove; 221. Second mounting groove; 222. Third mounting groove; 212. Anti-slip structure; 223. Fixing groove; 2221. First positioning hole;

[0038] 3. Battery;

[0039] 4. PCB board; 41. Positioning part; 411. Second positioning hole;

[0040] 5. First conductive part; 51. Touch contact electrode; 52. Battery positive electrode;

[0041] 6. Second conductive part; 61. Conductive electrode; 62. Battery negative electrode;

[0042] 7. Positioning structure;

[0043] 8. Positioning post;

[0044] 9. Handhold part; 91. First clearance gap; 92. Second clearance gap; Detailed Implementation

[0045] 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.

[0046] See Figure 1-7 This embodiment provides a screw-top type earphone with a removable battery, including:

[0047] The earphone body 1 has a battery storage slot 11;

[0048] The screw cap 2 is rotatably connected to the battery receiving slot 11, and together with the battery receiving slot 11, forms an installation space;

[0049] Battery 3 is installed in the installation space and is electrically connected to the headphone body 1.

[0050] In this invention, the screw cap 2 and the earphone body 1 work together to facilitate the installation and removal of the battery 3. Once the battery 3 is depleted, it can be replaced to continue use. Furthermore, the structure is simple, battery replacement is easy, and no professional personnel are required to replace the battery.

[0051] In this embodiment, the earphone also includes a PCB board 4 and a first conductive part 5 and a second conductive part 6 corresponding to the positive and negative terminals of the battery. The PCB board 4, the first conductive part 5, and the second conductive part 6 are all electrically connected to the battery 3. The PCB board 4 and the first conductive part 5 are both mounted on the screw cap 2, and the second conductive part 6 is mounted on the earphone body 1. With the above structure, the battery 3 can be removed and replaced simply by unscrewing the screw cap 2, and then a new battery can be installed to enable the battery to work normally, further simplifying the structure and reducing the difficulty of battery replacement.

[0052] In this embodiment, the screw cap 2 includes a top wall 21 and a side wall 22, which, when connected, form at least a partial mounting space. A first mounting groove 211 is provided on the top wall 21, and a second mounting groove 221 and a third mounting groove 222 are provided on the side wall 22. The first mounting groove 211 and the second mounting groove 221 are connected, as are the second mounting groove 221 and the third mounting groove 222. The PCB board 4 is mounted in at least one of the first mounting groove 211 and the second mounting groove 221, and the first conductive part 5 is mounted in the third mounting groove 222. The PCB board 4 is electrically connected to the first conductive part 5 through the second mounting groove 221. Preferably, the top wall 21 and the side wall 22 are integrally connected, and the PCB board 4 is preferably a flexible FPC. This groove structure allows the PCB board 4 and the first conductive part 5 to be mounted on the screw cap 2 without interfering with the placement of the battery 3.

[0053] In this embodiment, the sidewall 22 has a top end A and a bottom end B that are disposed opposite to each other. The top end A of the sidewall 22 is connected to the top wall 21. The third mounting groove 222 is located at the bottom end B and extends through the bottom end B, so that the first conductive part 5 is exposed at the bottom end B after being installed in the third mounting groove 222 and electrically connected to one of the poles of the battery 3. The above structure enables the screw cap 2 to be directly electrically connected to the battery after installation. The structure is simple and stable due to the presence of the groove.

[0054] In this embodiment, an anti-slip structure 212 is provided on the outer periphery of the top wall 21, and after the screw cap 2 is connected to the earphone body 1, the anti-slip structure 212 at least partially protrudes from the earphone body 1. The anti-slip structure 212 can be an anti-slip groove or a protrusion, or other structures that can achieve anti-slip. Since the earphone is small, the anti-slip structure 212 can further reduce the difficulty of battery replacement. The fact that the anti-slip structure 212 at least partially protrudes from the earphone body 1 also makes it easier for the hand to grip the anti-slip structure 212, reducing the friction between the earphone body and the hand when twisting the screw cap, that is, reducing the interference of the earphone body with disassembly.

[0055] In this embodiment, an L-shaped fixing groove 223 is provided on the outer periphery of the sidewall 22, and a fixing protrusion 111 that mates with the fixing groove 223 is provided in the battery receiving groove 11. A positioning structure 7 is also provided in the fixing groove 223 to maintain a stable connection between the fixing groove 223 and the fixing protrusion 111. The positioning structure 7 can be a spring, or a combination of a positioning protrusion and a groove. When the positioning structure 7 is a spring, one end of the spring abuts against the screw cap 2, and the other end abuts against the earphone body 1, providing a frictional force to prevent easy rotation of the fixing groove 223 and the fixing protrusion 111. When the positioning structure 7 is a positioning protrusion and a groove, the positioning protrusion can be provided on the fixing protrusion 111, and the positioning groove can be provided in the fixing groove 223. When the fixing protrusion 111 extends into the fixing groove 223 and rotates to engage, the positioning protrusion 111 will engage in the positioning groove, providing an anti-retraction function between the fixing groove 223 and the fixing protrusion 111.

[0056] In this embodiment, the first conductive part 5 includes a touch contact electrode 51 and a battery positive electrode 52 connected to the positive electrode of the battery 3. Both the touch contact electrode 51 and the battery positive electrode 52 are installed in the third mounting slot 222 and are electrically connected to the PCB board 4. The touch contact electrode 51 enables the earphone to achieve touch sensing function, and the battery positive electrode 52 is a conventional conductive electrode.

[0057] In this embodiment, the earphone body 1 also includes a main control board 12, and the second conductive part 6 includes a conductive electrode 61 and a battery negative electrode 62 connected to the negative electrode of the battery. Both the conductive electrode 61 and the battery negative electrode 62 are electrically connected to the main control board 12. The conductive electrode 61 is also electrically connected to the touch contact electrode 51 and the battery positive electrode 52. Preferably, both the conductive electrode 61 and the battery negative electrode 62 are spring contact structures, which can achieve both conductivity and auxiliary fixation of the battery 3.

[0058] In this embodiment, a plurality of first positioning holes 2221 are provided in the third mounting groove 222, and a positioning part 41 is provided on the PCB board 4. The positioning part 41 is provided with second positioning holes 411 corresponding to the positions of the first positioning holes 2221. Positioning posts 8 are provided on both the touch contact electrode 51 and the battery positive electrode 52. The positioning posts 8 pass through the first positioning holes 2221 and the second positioning holes 411 to position the touch contact electrode 51 and the battery positive electrode 52 with the PCB board 4. The above positioning structure can ensure the stability of the structure after connection while allowing the touch contact electrode 51 and the battery positive electrode 52 to be electrically connected to the PCB board 4, preventing displacement and poor contact caused by vibration and other factors.

[0059] In this embodiment, a handheld part 9 extends from one side of the earphone body 1. The handheld part 9 forms a first clearance notch 91 with the earphone body 1, and a second clearance notch 92 with the screw cap 2. The handheld part 9 and the clearance notch facilitate hand grip and force application, making it easier to wear and reducing the difficulty of installing and removing the screw cap 2 when replacing the battery 3.

[0060] 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. A screw-on battery detachable earphone, characterized in that, The earphone comprises: an earphone body having a battery accommodating groove; a rotating cover rotatably connected to the battery accommodating groove and forming an installation space with the battery accommodating groove; a battery installed in the installation space and electrically connected to the earphone body.

2. The detachable earphone of claim 1, wherein the battery is a coin cell battery. The earphone further comprises a PCB board and a first conductive part and a second conductive part corresponding to the positive and negative poles of the battery, the PCB board, the first conductive part and the second conductive part are all electrically connected to the battery, the PCB board and the first conductive part are both installed on the rotating cover, and the second conductive part is installed on the earphone body.

3. The battery detachable earphone with a screw cap according to claim 2, characterized in that, The rotating cover comprises a top wall and a side wall, and the top wall and the side wall form at least part of the installation space after being connected, the top wall is provided with a first installation groove, the side wall is provided with a second installation groove and a third installation groove, the first installation groove and the second installation groove are communicated, the second installation groove and the third installation groove are communicated, the PCB board is installed in at least one of the first installation groove and the second installation groove, the first conductive part is installed in the third installation groove, and the PCB board is electrically connected to the first conductive part through the second installation groove.

4. The battery detachable earphone with a screw cap according to claim 3, characterized in that, The side wall has a top end and a bottom end arranged oppositely, the top end of the side wall is connected to the top wall, and the third installation groove is located at the bottom end and penetrates through the bottom end, so that the first conductive part is exposed from the bottom end to be electrically connected to one of the poles of the battery after being installed in the third installation groove.

5. The battery detachable earphone with a screw cap according to claim 3, characterized in that, The outer periphery of the top wall is provided with an anti-skid structure, and the anti-skid structure at least partially protrudes from the earphone body after the rotating cover is connected to the earphone body.

6. The battery detachable earphone with a screw cap according to claim 3, characterized in that, The outer periphery of the side wall is provided with an L-shaped fixing groove, the battery accommodating groove is provided with a fixing protrusion matched with the fixing groove, and the fixing groove is further provided with a positioning structure for keeping the fixing groove and the fixing protrusion connected stably.

7. The detachable earphone of claim 3, wherein the battery cap is formed of a material having a predetermined elasticity. The first conductive part comprises a touch contact pole and a battery positive pole connected to the positive pole of the battery, the touch contact pole and the battery positive pole are both installed in the third installation groove, and the touch contact pole and the battery positive pole are both electrically connected to the PCB board.

8. The battery detachable earphone with a screw cap according to claim 2, wherein, The earphone body further comprises a main control board, the second conductive part comprises a conductive pole and a battery negative pole connected to the negative pole of the battery, the conductive pole and the battery negative pole are both electrically connected to the main control board, and the conductive pole is further electrically connected to the touch contact pole and the battery positive pole.

9. The battery-removable earphone with a screw cap according to claim 7, wherein, The third installation groove is provided with a plurality of first positioning holes, the PCB board is provided with a positioning part, the positioning part is provided with a second positioning hole corresponding in position to the first positioning hole, and the touch contact pole and the battery positive pole are both provided with a positioning column, the positioning column passes through the first positioning hole and the second positioning hole, so that the touch contact pole and the battery positive pole are positioned with the PCB board.

10. The detachable earphone of claim 1, wherein, The earphone body extends a hand holding part to one side of the periphery, the hand holding part forms a first avoiding gap with the earphone body, and the hand holding part forms a second avoiding gap with the rotating cover.

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