Damping rotating assembly and earphone
Patent Information
- Application Number
- CN202521889793.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-02
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-09-02
AI Technical Summary
传统的转动组件往往采用简单的转轴配合摩擦片或扭簧来实现阻尼与复位，但这些方案存在明显弊端：摩擦片易磨损导致阻尼力衰减，使用寿命有限；而扭簧提供的扭矩线性度不佳，且难以实现多角度的精准悬停，时常伴随生硬的顿挫感或异响，严重影响产品的品质感
Smart Images
Figure CN224746631U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of headphone technology, and in particular to a damping rotation component and a headphone. Background Technology
[0002] In the design of modern consumer electronics and precision instruments, flip-up or opening / closing structures have become key elements in enhancing user experience and product quality. Examples include the flip-top of an earphone charging case, the support arm of a portable monitor, and the doors of various home appliances. These structures not only require smooth and fluid rotation, capable of stopping at any angle, but also sufficient damping to prevent accidental opening or closing due to looseness or inertia, thus ensuring safety and reliability. Traditional rotating components often use simple shafts with friction plates or torsion springs to achieve damping and reset. However, these solutions have significant drawbacks: friction plates wear easily, leading to a decrease in damping force and a limited lifespan; while torsion springs provide poor torque linearity and struggle to achieve precise hovering at multiple angles, often accompanied by a harsh, jerky feel or abnormal noise, severely impacting the product's perceived quality. Therefore, the market urgently needs a compact, tactilely consistent damping rotating component and earphones. Utility Model Content
[0003] Therefore, it is necessary to provide a damping rotation component and earphones, which generate elastic force through elastic elements and use the elastic force of the elastic elements to achieve flip-cover damping, so that the flip cover can obtain a good damping feel and stable stopping effect during the opening and closing process, improve the user experience, and solve the problems of abnormal noise and scratches during the connection process.
[0004] An embodiment of this utility model provides a damping rotation assembly, including a fixed base, a rotating base, and an elastic element. The rotating base is rotatably connected to the fixed base. The elastic element includes a first elastic compression part, an intermediate connecting part, and a second elastic compression part connected in sequence. The first elastic compression part is fixed on the fixed base, and the second elastic compression part is fixed on the rotating base.
[0005] The damping rotation assembly provided in this application, when the user applies an external force to cause the rotating seat to rotate relative to the fixed seat, forces the second elastic compression part to move accordingly. This movement is transmitted through the intermediate connecting part, causing the first and second elastic compression parts to undergo complex elastic deformations such as twisting, stretching, or compression simultaneously. This deformation generates a restoring force that changes smoothly in the opposite direction of rotation. By generating elastic force through the elastic element, and utilizing the elastic force of the elastic element to achieve damping of the flip cover, the flip cover can obtain a good damping feel and a stable stopping effect during opening and closing, improving the user experience and solving the problems of abnormal noise and scratches during the connection process.
[0006] In one embodiment, the fixed base is provided with a mounting portion, and the first elastic compression portion is provided on the mounting surface of the mounting portion, with the mounting surface facing directly toward the rotation axis of the rotating base relative to the fixed base.
[0007] In one embodiment, a first fixing hole is formed on the mounting surface, and the first elastic compression portion extends at least partially into and is fixed in the first fixing hole.
[0008] In one embodiment, a second fixing hole is formed on one side of the rotating seat, and the second elastic compression portion extends at least partially into and is fixed in the second fixing hole.
[0009] In one embodiment, both the first elastic compression portion and the second elastic compression portion have a spiral structure, and the intermediate connecting portion has an arc structure.
[0010] In one embodiment, the first elastic compression portion, the intermediate connecting portion, and the second elastic compression portion constitute an integral connecting structure.
[0011] In one embodiment, the rotating seat and the fixed seat are rotatably connected by a pin.
[0012] In one embodiment, the fixed seat is further provided with a limiting beam. When the rotating seat rotates relative to the fixed seat in the forward direction to a first angular position, the limiting beam will abut against the rotating seat to prevent it from continuing to rotate. When the rotating seat rotates relative to the fixed seat in the reverse direction to a second angular position, the limiting beam will abut against the rotating seat to prevent it from continuing to rotate.
[0013] In one embodiment, the rotation angle between the first angular posture and the second angular posture is greater than 90°.
[0014] An earphone includes an earphone case, a flip cover, and the aforementioned damping rotation assembly, wherein the fixed base is fixedly connected to the earphone case, and the rotating base is fixedly connected to the flip cover.
[0015] The earphones provided in this application include an earphone case, a flip cover, and a damping rotation assembly. The damping rotation assembly enables the flip cover to open and close. The mounting bracket is installed and concealed within the internal structure of the earphone case, ensuring the overall stability and reliability of the earphone structure. Simultaneously, the rotating bracket of the assembly is fixedly connected inside the flip cover. When the user opens or closes the flip cover, the rotational movement of the flip cover is transmitted to the damping rotation assembly through the internal rotating bracket, resulting in a smooth opening and closing feel. The flip cover can stably hover at any angle, effectively preventing it from slipping off due to being too loose or being difficult to operate due to being too tight, thus improving the user experience. Attached Figure Description
[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:
[0017] Figure 1 This is a schematic diagram of the structure of a damping rotation assembly provided in one embodiment of this application;
[0018] Figure 2 This is a schematic diagram of the structure of a damping rotation assembly provided in one embodiment of this application;
[0019] Figure 3 This is a schematic diagram of the structure of a damping rotation assembly provided in one embodiment of this application;
[0020] Figure 4 This is a schematic diagram of the structure of a damping rotation assembly provided in one embodiment of this application;
[0021] Figure 5 An exploded view of a damping rotation assembly provided in an embodiment of this application;
[0022] Figure 6 This is an exploded view of a damping rotation assembly provided in one embodiment of this application.
[0023] Reference numerals: Damping rotation assembly 10; fixed base 100; mounting part 101; mounting surface 102; first fixing hole 103; second fixing hole 104; limiting crossbeam 105; rotating base 200; pin 201; elastic element 300; first elastic compression part 301; intermediate connecting part 302; second elastic compression part 303. Detailed Implementation
[0024] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.
[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0028] In the design of modern consumer electronics and precision instruments, flip-up or opening / closing structures have become key elements in enhancing user experience and product quality. Examples include the flip-top of earphone charging cases, the support arms of portable displays, and the doors of various home appliances. These structures not only require smooth and fluid rotation, allowing them to stop at any angle, but also sufficient damping to prevent accidental opening or closing due to looseness or inertia, thus ensuring safety and reliability. Traditional charging case hinges use either spring-loaded contacts or torsion springs. Both types of connections frequently experience rattling noises. Traditional torsion springs and contacts require lubrication due to metal-to-metal friction, which is complex and can lead to oil leakage and other cosmetic defects. Furthermore, the uneven torsional deformation of traditional torsion springs and contacts can cause jamming. Traditional rotating components often use a simple shaft with friction plates or torsion springs to achieve damping and reset. However, these solutions have significant drawbacks: friction plates are prone to wear, leading to a decrease in damping force and a limited lifespan; while torsion springs provide poor torque linearity and are difficult to use for precise hovering at multiple angles, often accompanied by a harsh, jerky feel or abnormal noise, severely affecting the product's perceived quality. Therefore, the market urgently needs a compact, tactilely consistent damping rotating component and earphone.
[0029] To address the issues of rattling and scraping during the connection process of the earphone charging case. (Refer to...) Figures 1-6In an embodiment of this utility model, a damping rotation assembly 10 is provided, including a fixed base 100, a rotating base 200 and an elastic element 300. The rotating base 200 is rotatably connected to the fixed base 100. The elastic element 300 includes a first elastic compression part 301, an intermediate connecting part 302 and a second elastic compression part 303 connected in sequence. The first elastic compression part 301 is fixed on the fixed base 100 and the second elastic compression part 303 is fixed on the rotating base 200.
[0030] Specifically, to address the aforementioned issues, in this embodiment, the damping rotation assembly 10 includes a fixed base 100, a rotating base 200, and an elastic element 300. The fixed base 100 serves as the stationary foundation of the damping rotation assembly 10 and is typically mounted on the main structure. The rotating base 200 is rotatably connected to the fixed base 100 via a shaft system. The rotating base 200 is the moving component of the assembly and can directly or indirectly drive other parts to rotate. Further, the elastic element 300 is composed of three continuous parts: a first elastic compression portion 301, an intermediate connecting portion 302, and a second elastic compression portion 303. The end of the first elastic compression portion 301 is reliably fixed to the fixed base 100, and the end of the second elastic compression portion 303 is similarly fixed to the rotating base 200. When the user applies an external force to cause the rotating base 200 to rotate relative to the fixed base 100, the second elastic compression portion 303 is forced to move accordingly. This movement, transmitted through the intermediate connecting part 302, causes the first elastic compression part 301 and the second elastic compression part 303 to undergo complex elastic deformations such as twisting, stretching, or compression simultaneously. This deformation generates a restoring force that changes smoothly in the opposite direction of rotation, and this restoring force is the direct source of the damping feel. It not only effectively avoids loosening and abnormal noise during rotation, but also allows the rotating seat 200 to remain stably in multiple angular positions without the need for locking, improving the operating feel of the damping rotation assembly 10.
[0031] Specifically, in this embodiment, the fixed base 100 is provided with a mounting part 101, which has the functions of positioning and bearing. The first elastic compression part 301 is provided on the mounting surface 102 of the mounting part 101, and the mounting surface 102 faces the rotation axis of the rotating base 200 relative to the fixed base 100. The orientation of the mounting surface 102 ensures that the force direction of the first elastic compression part 301 emanating from the mounting surface 102 can always maintain a reasonable spatial relationship with the tangential direction of the rotational motion. When the rotating base 200 rotates, the force can be transmitted, allowing the elastic element 300 to be compressed and twisted along its deformation direction. This eliminates unnecessary lateral force components or structural interference, making the entire damping process extremely smooth, stable, and quiet, effectively improving the operating feel and the stability of the angle hovering.
[0032] In some embodiments, a first fixing hole 103 is formed on the mounting surface 102. The first fixing hole 103 matches the end of the first elastic compression portion 301 of the elastic member 300, so that the first elastic compression portion 301 at least partially extends into and is fixed in the first fixing hole 103. During assembly, the end of the first elastic compression portion 301 is partially inserted into and embedded in the interior of the first fixing hole 103, forming a firm mechanical fixation. This ensures that the elastic member 300 will not loosen or shift from the mounting surface 102 when subjected to force, providing a stable and reliable force-bearing point for the damping rotation assembly 10. Through the above-described fixing method, when the rotating seat 200 rotates and causes the elastic member 300 to deform, the force can be smoothly transmitted from the firmly fixed first elastic compression portion 301 through the intermediate connecting portion 302 to the other end, thereby achieving a uniform, stable, and slip-free damping effect to improve service life.
[0033] In some embodiments, a second fixing hole 104 is formed on one side of the rotating seat 200. The second fixing hole 104 cooperates with the end of the second elastic compression portion 303 of the elastic member 300. The second elastic compression portion 303 extends at least partially into and is fixed in the second fixing hole 104. During assembly, the end of the second elastic compression portion 303 is partially inserted and securely embedded in the second fixing hole 104. This forms a mechanical anchor, ensuring a tight, integrated connection between the elastic member 300 and the rotating seat 200. Through the above fixing method, when the rotating seat 200 rotates under external force, the second elastic compression portion 303 can be effectively pulled through the second fixing hole 104, causing it to undergo elastic deformation. This ensures efficient torque transmission and stable output of damping performance, and avoids loosening, abnormal noise, or failure problems that may occur during use. This significantly improves the feel and structural reliability of the damping rotating assembly 10 under long-term repeated rotation.
[0034] Furthermore, in this embodiment, the first elastic compression portion 301 and the second elastic compression portion 303 at both ends of the elastic member 300 are both spiral structures, and the intermediate connecting portion 302 is an arc structure. The spiral structure can provide uniform and controllable elastic force through its orderly curling and unfolding during rotation, effectively absorbing kinetic energy and avoiding a harsh mechanical impact. The intermediate connecting portion 302 connecting the first elastic compression portion 301 and the second elastic compression portion 303 is an arc structure, which naturally connects the two ends into a whole in appearance. The intermediate connecting portion 302 can smoothly transmit the force and deformation between the two ends of the first elastic compression portion 301 and the second elastic compression portion 303. At the same time, the arc of the intermediate connecting portion 302 itself also provides additional elastic space for the overall structure, ensuring the reliability of use.
[0035] In some embodiments, the first elastic compression part 301, the intermediate connecting part 302, and the second elastic compression part 303 form an integral connecting structure. The integrally molded elastic element 300 ensures the continuity and smoothness of force transmission. When rotation occurs, the force can be smoothly transmitted from the second elastic compression part 303 through the intermediate connecting part 302 to the first elastic compression part 301 without interruption, thereby outputting an extremely uniform and stable damping force, providing the user with a smooth operating feel. In some embodiments, the rotating seat 200 and the fixed seat 100 are rotatably connected by a pin 201. The pin 201 passes through corresponding shaft holes on the two components, thereby movably mounting the rotating seat 200 on the fixed seat 100. The connection method using the pin 201 ensures that the rotating seat 200 can rotate around a fixed axis. There will be no left or right offset or loosening during the entire rotation process. Supported by pin 201, elastic element 300 can deform within a predetermined range, outputting uniform and linear damping force, so that the flip cover can obtain good damping feel and stable stopping effect during opening and closing, improving the user experience and solving the problems of abnormal noise and scratches during the connection of the earphone case.
[0036] Furthermore, in this embodiment, the fixed base 100 is also provided with a limiting beam 105. The limiting beam 105 can limit the rotation range of the rotating base 200, preventing the rotating base 200 from excessive rotation, thereby effectively protecting the internal elastic element 300 from mechanical damage. Specifically, when the rotating base 200 rotates relative to the fixed base 100 in the forward direction to a first angular position, the limiting beam 105 will abut against the rotating base 200 to prevent it from continuing to rotate; when the rotating base 200 rotates relative to the fixed base 100 in the reverse direction to a second angular position, the limiting beam 105 will abut against the rotating base 200 to prevent it from continuing to rotate. During use, when the user pushes the rotating base 200 to rotate in the forward direction and reaches a preset first angular limit position, the corresponding part of the rotating base 200 will contact the side of the limiting beam 105 and be firmly abutted by it, creating a clear mechanical blockage, thereby preventing the rotating base 200 from continuing to rotate forward. Similarly, when the rotating seat 200 rotates in the opposite direction to another preset second angle limit position, its other side will also come into contact with different parts of the same limiting beam 105 and be reliably abutted again, thereby achieving reverse rotation limit.
[0037] In some embodiments, the rotation angle between the first and second angular positions of the rotating base 200 is greater than 90°, providing greater operational freedom and flexibility, enabling the components connected to the rotating base 200 to achieve significant opening and closing or angle adjustment. The damping rotation component 10 provided in this application can be applied to headphones and other wearable devices, such as smart glasses with separate charging, solving problems such as abnormal noise and scratches during connection. In one embodiment, the damping rotation component 10 is used in a Bluetooth headphone charging case. Because the elastic element 300 is embedded inside the device, it is not easy to fall off, and the flip cover will not cause abnormal noise, avoiding aesthetic problems. In another embodiment, the damping rotation component 10 is used in cosmetic packaging boxes, jewelry packaging boxes, etc. The flip cover has damping and uniform damping, and the spring is stable and not easy to fall off, improving the product's grade.
[0038] The earphones of the second aspect of this utility model include an earphone case, a flip cover, and a damping rotation assembly 10 as described in the first aspect. A fixing base 100 is fixedly connected to the earphone case, and a rotating base 200 is fixedly connected to the flip cover. Specifically, the damping rotation assembly 10 enables the flip cover to open and close. The fixing base 100 is securely installed and hidden within the internal structure of the earphone case, ensuring the overall structure of the earphone is stable and reliable. Simultaneously, the rotating base 200 of the assembly is fixedly connected to the inside of the flip cover. When the user opens or closes the flip cover, the rotational movement of the flip cover is transmitted to the damping rotation assembly 10 through the internal rotating base 200, resulting in a smooth opening and closing feel. The flip cover can stably hover when opened to any angle, effectively avoiding the problem of slipping off due to excessive looseness or being difficult to operate due to excessive tightness, thus improving the user experience of the earphones. Since this embodiment adopts all the technical features of the damping rotation assembly 10 of the first aspect embodiment, this embodiment possesses the beneficial effects brought by the first aspect embodiment, which will not be elaborated further here.
[0039] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A damped rotation assembly, characterized in that, It includes a fixed base, a rotating base, and an elastic element. The rotating base is rotatably connected to the fixed base. The elastic element includes a first elastic compression part, an intermediate connecting part, and a second elastic compression part connected in sequence. The first elastic compression part is fixed on the fixed base, and the second elastic compression part is fixed on the rotating base.
2. The damped rotary assembly of claim 1, wherein The fixed base is provided with a mounting part, and the first elastic compression part is provided on the mounting surface of the mounting part, with the mounting surface facing the rotation axis of the rotating base relative to the fixed base.
3. The damping rotation assembly according to claim 2, characterized in that, A first fixing hole is formed on the mounting surface, and the first elastic compression part extends at least partially into and is fixed in the first fixing hole.
4. The damping rotation assembly according to claim 1, characterized in that, A second fixing hole is formed on one side of the rotating seat, and the second elastic compression part extends into and is fixed in the second fixing hole at least partially.
5. The damping rotation assembly according to claim 1, characterized in that, Both the first elastic compression section and the second elastic compression section have a spiral structure, and the intermediate connecting section has an arc structure.
6. The damped rotary element of claim 1, wherein The first elastic compression part, the intermediate connecting part, and the second elastic compression part form an integrated connecting structure.
7. The damped rotary element assembly of claim 1, wherein The rotating seat and the fixed seat are rotatably connected by a pin.
8. The damped rotary element of claim 1, wherein The fixed seat is also provided with a limiting beam. When the rotating seat rotates relative to the fixed seat in the forward direction to a first angular position, the limiting beam will abut against the rotating seat to prevent it from continuing to rotate. When the rotating seat rotates relative to the fixed seat in the reverse direction to a second angular position, the limiting beam will abut against the rotating seat to prevent it from continuing to rotate.
9. The damped rotary element according to claim 8, wherein The rotation angle between the first angular posture and the second angular posture is greater than 90°.
10. An earphone, characterized in that, The device includes an earphone compartment, a flip cover, and a damping rotation assembly as described in any one of claims 1-9, wherein the fixed base is fixedly connected to the earphone compartment, and the rotating base is fixedly connected to the flip cover.