A quick-release battery structure for wearable devices and its headphones

Abstract

This utility model discloses a quick-release battery structure for wearable devices, including a battery cover, a spring, and a locking mechanism. The wearable device has a fixing hole; the battery cover has a locking hole, and the battery is detachably mounted on the inner side of the battery cover. The locking mechanism passes through the locking hole, the fixing hole, and the spring, achieving a movable connection with the spring. By pulling and rotating the locking mechanism, the spring compresses and resets, and the locking mechanism locks the battery cover. After the battery cover and battery assembly are fixed in their corresponding positions, the charging pad on the battery contacts the pogo pin on the PCB board to achieve charging. By pulling and rotating the locking mechanism again, the spring compresses and resets, and the locking mechanism unlocks the battery cover. This utility model's quick-release battery structure requires no professional tools throughout the process; locking / unlocking the battery cover can be completed simply by pulling and rotating the locking mechanism, resulting in high battery installation and removal efficiency.

Description

Technical Field

[0001] This utility model relates to the field of quick-release battery technology, specifically to a quick-release battery structure for wearable devices and its headphone. Background Technology

[0002] With the rapid development of consumer electronics technology, wearable devices, such as headphones, smart bracelets, smart glasses, and Bluetooth headsets, have become indispensable products in people's daily lives, work, and entertainment. Among them, wearable devices, especially headphones, have seen a continuous increase in market demand due to their excellent sound quality, portable wireless connectivity, and comfortable fit. As the core energy supply component of wearable devices, the design of the battery directly affects the user experience, lifespan, and compliance of the device. In recent years, the EU and other regions have successively introduced strict environmental regulations, such as the REACH regulation, which explicitly requires that the batteries of wearable devices be "easily removable and easily recyclable" to reduce electronic waste and resource waste, while also facilitating user replacement of batteries as they age, thus extending the overall lifespan of the device.

[0003] However, current battery mounting and dismounting solutions for wearable head-mounted devices generally suffer from numerous shortcomings, making it difficult to simultaneously meet the comprehensive requirements of "compliance, reliability, convenience, low cost, and personalization." For example, traditional screw mounting methods are cumbersome and unreliable; sliding cover structures have poor sealing and high mold costs; magnetic mounting is costly and carries a high risk of magnetic force attenuation; and single-clip structures lack sufficient fixing direction and are prone to breakage. In summary, current battery dismounting solutions for wearable head-mounted devices all have insurmountable flaws and cannot simultaneously meet the market demands for compliance, reliability, convenience, and low cost. Therefore, there is an urgent need for a structurally optimized, reliable, low-cost, and aesthetically pleasing quick-release battery structure to address the pain points of existing technologies. Utility Model Content

[0004] The present invention aims to overcome at least one of the defects of the prior art and provide a quick-release battery structure for wearable devices and its headphone, so as to achieve the purpose of simple operation, high reliability and low cost.

[0005] This utility model protects a quick-release battery structure for wearable devices, including a battery cover, a spring, and a locking mechanism. The wearable device has a fixing hole; the battery cover has a locking hole, and the battery is detachably mounted on the inner side of the battery cover. The locking mechanism passes through the locking hole and the fixing hole, and the spring is sleeved below the locking mechanism, achieving a movable connection between the locking mechanism and the spring. By pulling and rotating the locking mechanism, the spring compresses and resets, and the locking mechanism locks the battery cover. After the battery cover and battery assembly are fixed in the corresponding positions, the charging pad on the battery contacts the pogo pin on the PCB board to achieve charging. By pulling and rotating the locking mechanism again, the spring compresses and resets, and the locking mechanism unlocks the battery cover. Preferably, the relative rotation angle between the lifting / unlocking and locking is 90°.

[0006] The wearable device has pre-drilled mounting holes for engagement with the locking mechanism. The battery cover has corresponding mounting holes for the locking mechanism to pass through. The battery is detachably mounted on the inside of the battery cover, not by adhesive or welding. The locking mechanism passes through the mounting holes in the battery cover and the wearable device, forming a movable connection with a spring. By pulling and rotating the locking mechanism 90°, the spring undergoes a compression-reset deformation process. On the first operation, the spring resets and drives the locking mechanism to lock the battery cover. On subsequent operations, the spring resets and drives the locking mechanism to unlock the battery cover, achieving tool-free assembly and disassembly.

[0007] Completely eliminates tool dependence, significantly improving ease of operation: Compared to traditional multi-screw battery cover fixing solutions that require screwdrivers and other professional tools, are time-consuming to disassemble and assemble, and are prone to stripping screws, this solution only requires two manual actions: lifting and rotating 90°. Ordinary users can easily complete the task, greatly lowering the operational threshold, especially suitable for users with less hand strength. Spring-driven mechanism ensures locking reliability and avoids the risk of loosening: The compression-reset process of the spring provides continuous and uniform elastic pressure to the locking mechanism, ensuring a tight fit between the battery cover and the wearable device. Even if the wearable device is subjected to severe vibrations, such as running, cycling bumps, or minor impacts, the locking mechanism will not loosen, ensuring stable contact between the battery and the internal PCB of the wearable device.

[0008] The battery in this invention is installed detachably inside the battery cover, allowing for battery replacement without damaging the device structure. This fully meets the requirements of the EU Battery Regulation and REACH Regulation regarding "easy battery removal and recycling," avoiding the resource waste caused by the scrapping of devices due to traditional "non-removable batteries." The core components of this structure—the battery cover, spring, and locking mechanism—are modularly designed, requiring no major modifications to the wearable device itself. Only a single fixing hole is needed for adaptation, making it widely applicable to various wearable devices such as headphones, smart bracelets, and smart glasses, with low adaptation costs.

[0009] Furthermore, the locking mechanism includes, from top to bottom, a handle, a base, and a fixing member; the spring is movably sleeved on the fixing member; the shape of the base matches the shape of the locking hole.

[0010] The spring of this invention is movably sleeved on the fixing component, meaning the spring can be freely compressed or reset along the axial direction of the fixing component without being rigidly connected to it. The shape of the base, such as circular or square, perfectly matches the shape of the locking hole on the battery cover, with no obvious gap after the base is inserted into the locking hole. This "shape-matched, gap-free insertion" between the base and the locking hole restricts the radial displacement of the locking mechanism, avoiding operational jamming or locking offset caused by radial wobbling in existing designs. The locking mechanism consists of three layers: a handle, a base, and a fixing component. Each component can be assembled or replaced independently, and the layered structure facilitates mass assembly on the production line.

[0011] Furthermore, the handle is a pull ring, and both ends of the pull ring are rotatably connected to the base. The pull ring's rotatable connection to the base allows it to rotate freely around the connection point without any noticeable gaps or looseness.

[0012] The ring structure can accommodate fingers of different sizes, allowing users to hook and pull without precise alignment. The lifting ring can also be integrated with the design of the wearable device, such as using the same material or color as the device housing, avoiding the disruption of the overall appearance caused by traditional screw holes and protruding buttons.

[0013] Furthermore, a through hole is provided in the middle of the base portion; the fastener passes through the through hole and is fixedly connected to the base portion. The fastener must pass through the through hole and form a fixed connection with the base portion, such as a threaded connection or an interference fit, to ensure that there is no relative displacement between the fastener and the base portion.

[0014] Preferably, the fixing component is a male and female screw. It includes a male screw, which is a detachable screw body, and a female screw, which is a nut component pre-installed in the wearable device. The male screw passes through the through hole of the base, the fixing hole of the wearable device, and the spring in sequence, and then forms a threaded connection with the female screw to realize the fixing of the locking mechanism to the wearable device.

[0015] Furthermore, the inner side of the battery cover is provided with one or more clips for securing the battery. On the inner side of the battery cover, on the side in contact with the battery, one or more clips are provided, preferably 2-4 clips arranged symmetrically. The clips have elastic deformation capability; for example, if made of elastic plastic materials such as ABS or TPU, the clips are compressed and deformed when the battery is inserted, and return to their original position after the battery is fully inserted, securing the edge or groove of the battery, thus achieving detachable and secure battery.

[0016] Furthermore, the inner side of the battery cover is also provided with multiple battery fixing ribs for battery positioning.

[0017] The battery fixing rib extends along the battery insertion direction, with its top end tightly fitting against the outer wall of the battery, thus restricting the battery's X-axis displacement. The fixing rib is preferably made of ABS plastic, which possesses a certain degree of rigidity and elasticity. The clips restrict the battery's Y and Z-axis displacement, while the battery fixing rib restricts X-axis displacement, forming an "X+Y+Z" three-dimensional fixing system.

[0018] Furthermore, the outer surface of the battery cover is also provided with a limiting groove; the straight line of the limiting groove is perpendicular to the straight line of the locking hole. This allows the base portion to be confined within the limiting groove when the locking mechanism is rotated 90° to lock.

[0019] Furthermore, foam is attached to the edge of the locking hole and / or the inner edge of the battery cover.

[0020] Foam is attached to the "edge of the locking hole" and / or the "inner edge of the battery cover," preferably both. Low-density polyurethane foam is preferred, as it provides good sealing, elasticity, and cushioning. The foam is designed to provide sealing against dust and water, protect internal components, cushion and absorb shock, reduce impact damage, fill gaps, and prevent abnormal noises.

[0021] This utility model also protects a headset, including a headset body and the aforementioned quick-release battery structure; the headset body includes a first earcup, a headband, and a second earcup connected in sequence; the fixing hole is located in the first earcup, and the quick-release battery structure is detachably connected to the first earcup through the fixing hole. The fixing hole is located in the first earcup, where the battery is typically installed, providing ample space. The quick-release battery structure is detachably connected to the first earcup through the fixing hole, meaning the quick-release structure can be removed from the first earcup for easy maintenance.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. Ease of operation: The quick-release battery structure of this utility model requires no professional tools. The battery cover can be locked / unlocked simply by lifting and rotating 90°, which makes battery installation and removal highly efficient. In addition, the battery fixing ribs guide the battery and the buckles provide elastic fixation, making battery insertion smooth and reducing the user's error rate. It is suitable for all users.

[0023] 2. Structural Reliability: The battery is three-dimensionally fixed by a combination of snap-fit ​​and fixing ribs. The locking mechanism, driven by a spring and connected by male and female screws, ensures reliable locking, resulting in low rates of battery loosening and poor contact. Furthermore, the foam seal provides dust and water protection and shock absorption, reducing the failure rate of the battery, PCB, and casing.

[0024] 3. Cost-effectiveness: The core components of this utility model adopt a modular design of battery cover and locking mechanism, which reduces mold development costs and improves production efficiency.

[0025] 4. Compliance and Environmental Protection: The battery of this utility model can be disassembled without damaging the equipment, fully complying with the EU Battery Regulation, REACH Regulation and domestic environmental protection standards, improving the battery recycling rate; and reducing equipment scrapping due to battery aging, reducing electronic waste generation, which is in line with the "dual carbon" orientation.

[0026] 5. Scene adaptability: The thin and light structure fits the limited space of wearable devices such as headphones and smart bracelets without affecting the wearing / use experience; and the integrated appearance allows for a high degree of customization, meeting users' needs for personalized appearance and enhancing the product's market competitiveness. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the battery quick-release structure of this utility model applied to headphones.

[0028] Figure 2 This is a partial disassembly diagram illustrating the application of the quick-release battery structure of this utility model to headphones.

[0029] Figure 3 This is a partial exploded view of the quick-release battery structure of this utility model.

[0030] Figure 4 This is a schematic diagram of the lifting ring of the quick-release battery structure of this utility model after it has been laid flat.

[0031] Figure 5 This is a schematic diagram of the inner side of the quick-release battery structure of this utility model. Detailed Implementation

[0032] The accompanying drawings illustrate the technical solutions of this utility model in more detail. Throughout the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions. The described embodiments are only some, not all, of the embodiments of this utility model. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0033] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0034] Furthermore, if the embodiments of this application involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0035] Example

[0036] like Figure 1 As shown, this embodiment applies the quick-release battery structure to headphones, aiming to fully present the technical solution of this utility model through concrete component design, size parameters and assembly process, and verify its core advantages of tool-free disassembly and assembly, reliable fixation and low-cost adaptation.

[0037] The headphones in this embodiment consist of two parts: the headphone body and the quick-release battery structure. The specific structural relationship is as follows: Combination Figure 1 and Figure 2 As shown, the main body of the headphones is a headband-style structure, including a first earcup 1, a headband 2, and a second earcup 3 connected in sequence; wherein, the inner side of the shell of the second earcup 3 has a reserved battery mounting cavity, and a fixing hole 10 is opened on the cavity wall for cooperating with the battery quick-release structure; combined with Figure 3 As shown, a PCB board 4 is also fixed inside the second earcup 3. Two pogo pins 200 are soldered on the side of the PCB board 4 facing the battery mounting cavity, which correspond to the positive and negative terminals of the battery 100 respectively.

[0038] Combination Figures 2-3 and Figure 5 As shown, the quick-release battery structure includes a battery cover 5, a spring 6, and a locking mechanism 7; the battery cover 5 has a locking hole 20, and the battery 100 is detachably installed on the inner side of the battery cover 5; as shown Figure 3As shown, the locking mechanism 7 includes, from top to bottom, a handle portion 71, a base portion 72, and a fixing member 73; the fixing member 73 is a male and female screw. The shape of the base portion 72 matches the shape of the locking hole 20. The male and female screws pass through the locking hole 20, the fixing hole 10, and the spring 6, realizing the movable connection between the base portion 72 and the spring 6; In this embodiment, the handle 71 is a lifting ring, and both ends of the lifting ring are rotatably inserted into the base 72. Figure 4 As shown, the base portion 72 has a through hole 30 in the middle; the male and female screws pass through the through hole 30 and are fixedly connected to the base portion 72.

[0039] Combination Figure 5 As shown, the inner side of the battery cover 5 is provided with two clips 8 for fixing the battery 100, and the clips 8 are located on the longitudinal axis of the battery 100. The inner side of the battery cover 5 is also provided with four battery fixing ribs 9 for limiting the position of the battery 100, that is, two battery fixing ribs 9 are provided on each side of the battery 100 installation position. Combined with... Figure 2 As shown, the outer side of the battery cover 5 is also provided with a limiting groove 40; the straight line of the limiting groove 40 is perpendicular to the straight line of the locking hole 20. This allows the base part 72 to be limited in the limiting groove 40 when the locking mechanism 7 is rotated 90° to lock.

[0040] like Figure 5 As shown, foam 50 is attached to the edge of the locking hole 20 and the inner edge of the battery cover 5. The quick-release battery structure is adapted to the battery mounting cavity of the second earcup 3, and the assembly relationship between each component and the headphone body is as follows. Figure 1 As shown: the battery cover 5 is fitted above the second ear cup part 3, and the battery 100 is fixed to the inner side of the battery cover 5; the locking mechanism 7 passes through the locking hole 20 of the battery cover 5 and the fixing hole 10 of the first ear cup part 1, and provides elastic locking force through the spring 6; the foam 50 is attached to the edge of the locking hole 20 and the inner side edge of the battery cover 5 to achieve sealing and cushioning.

[0041] The battery cover 5 is integrally injection molded from ABS plastic. Two elastic buckles 8 are symmetrically arranged on the inner side of the battery cover 5. The buckles 8 are made of the same material as the battery cover 5 and have an "L-shaped" structure. The free end of the buckle 8 has a "guide slope." When the battery 100 is inserted, the buckle 8 can be squeezed and deformed. After being fully inserted, the buckle 8 returns to its original position, locking the left and right edges of the battery 100 and restricting the displacement of the battery 100 in the Y and Z directions. Two sets of battery fixing ribs 9 are evenly arranged on both sides of the battery 100 at the bottom of the inner side. Each set of battery fixing ribs 9 consists of two ribs. The cross-section of the battery fixing ribs 9 is rectangular, and the material is the same as that of the battery cover 5. The top of the battery fixing ribs 9 fits tightly against the outer wall of the battery 100, restricting the sliding of the battery 100 in the X direction, and forming a three-dimensional fixation with the buckles 8.

[0042] Combination Figure 1 As shown, when the lifting ring is lifted, the spring 6 is compressed, rotated 90° and then released. The spring 6 returns to its original position and pushes the base part 72 to press the battery cover 5, thus locking it in place. Figure 4 As shown, the lifting ring can be rotated to lay flat, reducing its space occupation. To unlock, pull the compression spring 6 again, rotate it 90°, and the battery cover 5 will be released.

[0043] The above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to the preferred embodiments above, those skilled in the art should understand that modifications or equivalent substitutions to the technical solution of this utility model should not depart from the spirit and scope of this utility model. Those skilled in the art can also make other changes within the spirit of this utility model for its design, as long as they do not deviate from the technical effect of this utility model. These changes made according to the spirit of this utility model should all be included within the scope of protection claimed by this utility model.

Claims

1. A quick-release battery structure for wearable devices, characterized in that, Includes a battery cover (5), a spring (6), and a locking mechanism (7); The wearable device is provided with a fixing hole (10); The battery cover (5) is provided with a locking hole (20), and the battery (100) is detachably installed on the inner side of the battery cover (5); The locking mechanism (7) passes through the locking hole (20) and the fixing hole (10), and the spring (6) is sleeved below the locking mechanism (7) to realize the movable connection between the locking mechanism (7) and the spring (6); By pulling and rotating the locking mechanism (7), the spring (6) is compressed and reset, and the locking mechanism (7) locks the battery cover (5); by pulling and rotating the locking mechanism (7) again, the spring (6) is compressed and reset, and the locking mechanism (7) unlocks the battery cover (5).

2. The quick-release battery structure according to claim 1, characterized in that, The locking mechanism (7) includes, from top to bottom, a handle (71), a base (72), and a fixing member (73); the spring (6) is movably sleeved on the fixing member (73); the shape of the base (72) matches the shape of the locking hole (20).

3. The quick-release battery structure according to claim 2, characterized in that, The handle (71) is a lifting ring, and the two ends of the lifting ring are rotatably inserted into the base (72).

4. The quick-release battery structure according to claim 2, characterized in that, The base part (72) has a through hole (30) in the middle; the fixing member (73) passes through the through hole (30) and is fixedly connected to the base part (72). The base part (72) is rotated by lifting the handle part (71) to achieve locking and unlocking.

5. The quick-release battery structure according to claim 2, characterized in that, The fastener (73) is a male and female screw.

6. The quick-release battery structure according to claim 1, characterized in that, The inner side of the battery cover (5) is provided with one or more clips (8) for fixing the battery (100).

7. The quick-release battery structure according to claim 1, characterized in that, The inner side of the battery cover (5) is also provided with a plurality of battery fixing ribs (9) for limiting the battery (100).

8. The quick-release battery structure according to claim 1, characterized in that, The outer side of the battery cover (5) is also provided with a limiting groove (40); the straight line of the limiting groove (40) is perpendicular to the straight line of the locking hole (20).

9. The quick-release battery structure according to claim 1, characterized in that, Foam (50) is attached to the edge of the locking hole (20) and / or the inner edge of the battery cover (5).

10. A type of over-ear headphone, characterized in that, The device includes an earphone body and a quick-release battery structure as described in any one of claims 1 to 9; the earphone body includes a first earcup (1), a headband (2), and a second earcup (3) connected in sequence; a fixing hole (10) is provided in the first earcup (1), and the quick-release battery structure is detachably connected to the first earcup (1) through the fixing hole (10).

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