Auxiliary rebounding mechanism, sound box and electronic device

By adding multiple elastic components to the bottom of the encoder's rotating parts, the problems of button jamming and shortened lifespan caused by encoder deformation are solved, resulting in more stable and durable button operation.

CN122202094APending Publication Date: 2026-06-12JIANGXI JIAYINMEI ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
JIANGXI JIAYINMEI ELECTRONICS CO LTD
Filing Date
2026-04-28
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The limited deformation space of the internal elastic components of existing encoders results in short press rebound stroke and small compression amplitude. After long-term use, metal fatigue occurs severely, causing dry and stuttering button press feedback, incomplete rebound, and easy function mis-triggering and button jamming.

Method used

Multiple elastic elements are added to the bottom of the rotating parts of the encoder to provide reset force, share the pressing load of the internal elastic structure of the encoder, and extend the service life of the encoder by assisting the rebound through the elastic elements.

Benefits of technology

It significantly improves the durability and lifespan of the encoder, reduces the probability of rebound jamming, incomplete reset and button jamming, and ensures the stability and durability of button operation.

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Abstract

The application discloses an auxiliary rebound mechanism, a sound box and electronic equipment, which comprises a base, a rotating part, a mounting part, an encoder and an elastic part. The rotating part is arranged on the base and can rotate along the axis of the base. The mounting part is connected above the rotating part. The encoder is arranged on the mounting part and connected with the base at the lower end. The elastic part is arranged on the bottom surface of the rotating part to provide rebound force for the rotating part. When the mounting part is subjected to a downward pressure, the rotating part and the mounting part sink synchronously. When the mounting part loses the downward pressure, the elastic part can drive the rotating part and the mounting part to reset. The application can greatly reduce the probability of key function rebound jam, incomplete reset, key jam and even function failure of the product, and significantly improve the durability and service life of the product.
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Description

Technical Field

[0001] This invention relates to the field of elastic reset mechanisms, and more specifically, to an auxiliary rebound mechanism, a speaker, and an electronic device. Background Technology

[0002] Encoders are core components in various consumer electronics, automotive devices, smart home devices, industrial control and other electronic devices, enabling rotation adjustment and button pressing control. They are widely used in operation scenarios such as volume adjustment, gear switching, parameter setting, and function confirmation.

[0003] Currently, conventional encoders on the market have limited deformation space for their internal elastic components, resulting in short press-and-rebound strokes and small compression amplitudes. During long-term daily use, encoders are subjected to frequent, high-frequency, repetitive pressing operations. The internal metal elastic elements undergo continuous bending and compression deformation, leading to long-term fatigue stress. This causes irreversible metal fatigue, a continuous decrease in the elastic coefficient, and a significant reduction in rigidity and resilience. Consequently, the button press feedback becomes dry and stuttering, the operating feel deteriorates considerably, and issues such as incomplete rebound and button jamming can occur. This can easily lead to erroneous function triggering and button freezing.

[0004] Therefore, in order to avoid the above situation as much as possible, it is necessary to design a springback mechanism to assist the column encoder in springback. Summary of the Invention

[0005] This invention aims to at least partially solve one of the technical problems in the related art. Therefore, one object of this invention is to provide an auxiliary springback mechanism.

[0006] Another object of the present invention is to provide a speaker.

[0007] Another object of the present invention is to provide an electronic device.

[0008] To achieve the above objectives, one aspect is an auxiliary rebound mechanism according to an embodiment of the present invention, which includes a base, a rotating component, a mounting component, an encoder, and an elastic component. The rotating component is mounted on the base and can rotate along the axis of the base.

[0009] The mounting component is connected above the rotating component.

[0010] The encoder is mounted on the mounting piece, and its lower end is connected to the base.

[0011] The elastic element is disposed on the bottom surface of the rotating element to provide a restoring force for the rotating element.

[0012] When the mounting component is subjected to downward pressure, the rotating component and the mounting component sink synchronously. When the mounting component loses the downward pressure, the elastic component can drive the rotating component and the mounting component to reset.

[0013] The auxiliary rebound mechanism provided by the embodiments of the present invention provides a reset spring force by adding an elastic element at the bottom of the rotating part, so that it no longer relies solely on the internal elastic structure of the encoder to achieve the pressing and rebound. At the same time, it can also share the pressing load of the encoder, extend the life of the encoder rebound component, and after the internal rebound component of the encoder suffers metal fatigue due to long-term repeated deformation, the elastic element provides auxiliary rebound, which greatly reduces the probability of product rebound jamming, incomplete reset, button jamming, or even functional failure, and significantly improves product durability and service life.

[0014] In addition, the auxiliary rebound mechanism according to the above embodiments of the present invention may also have the following additional technical features: According to one embodiment of the present invention, a plurality of elastic elements are provided, and the plurality of elastic elements are arranged at intervals along the circumference of the rotating member.

[0015] According to one embodiment of the present invention, three elastic elements are provided, and the three elastic elements are arranged at circumferential intervals along the rotating member.

[0016] According to one embodiment of the present invention, the bottom surface of the rotating member is provided with a mounting hole, and the elastic member is detachably disposed in the mounting hole.

[0017] According to one embodiment of the present invention, the elastic element is a ball screw.

[0018] According to one embodiment of the present invention, the base has a mounting cavity, the upper surface of the base has a through groove communicating with the mounting cavity, and the top surface of the mounting cavity has a stepped surface that extends circumferentially along the through groove.

[0019] The rotating component is inserted into the through groove, and the outer edge of the rotating component is provided with a limiting part that extends circumferentially. The limiting part is attached to the step surface to restrict the rotating component to the base.

[0020] According to one embodiment of the present invention, the bottom surface of the mounting cavity is provided with a fixing platform, and the lower end of the encoder is detachably connected to the fixing platform.

[0021] According to one embodiment of the present invention, the bottom surface of the mounting cavity is provided with a boss portion, the boss portion is annular and coaxially arranged with the mounting platform. When the mounting member sinks, the lower end of the elastic member abuts against the surface of the boss portion, so that the elastic member switches to a contracted state.

[0022] On the other hand, a speaker according to an embodiment of the present invention has the auxiliary rebound mechanism as described above.

[0023] On yet another hand, an electronic device according to an embodiment of the present invention has the auxiliary rebound mechanism as described above.

[0024] The additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0026] Figure 1 is an axonometric view of the overall structure of the auxiliary rebound mechanism in an embodiment of the present invention; Figure 2 is a side view of the overall structure of the auxiliary rebound mechanism in an embodiment of the present invention; Figure 3 is an embodiment of the present invention Figure 2 sectional view along the A-A direction; Figure 4 is an exploded view of the overall structure of the auxiliary rebound mechanism in an embodiment of the present invention; Figure 5 is a schematic diagram of the split state of the rotating member and the elastic member in an embodiment of the present invention; Figure 6 is a schematic sectional view of the base in an embodiment of the present invention; Figure 7 is a schematic diagram of the overall structure of another embodiment of the present invention.

[0027] Reference Numerals in the Drawings: Base 10; Installation Cavity 11; Through Slot 12; Step Surface 13; Fixed Platform 14; Boss Portion 15; Rotating Member 20; Elastic Member 21; Installation Hole 22; Limiting Portion 23; Installation Member 30; Encoder 40; Speaker 50.

[0028] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "circumferential," and "radial," 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 invention 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 invention.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0033] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0034] The auxiliary rebound mechanism, speaker 50, and electronic equipment of the present invention are described in detail below with reference to the accompanying drawings.

[0035] Reference Figures 1 to 6 As shown, the auxiliary rebound mechanism provided according to an embodiment of the present invention includes a base 10, a rotating member 20, a mounting member 30, an encoder 40, and an elastic member 21.

[0036] The rotating component 20 is mounted on the base 10 and can rotate along the axis of the base 10. The rotating component 20 has a ring structure.

[0037] The mounting component 30 is connected above the rotating component 20.

[0038] The encoder 40 is mounted on the mounting member 30, and its lower end is connected to the base 10. It is understood that the encoder 40 itself has a rotatable and press-and-return function, thereby enabling operations such as volume adjustment, gear switching, parameter setting, and function confirmation through rotation and pressing. Therefore, when the mounting member 30 is rotated or pressed, the encoder 40 can rotate and press-and-return, thus enabling operations such as volume adjustment, gear switching, parameter setting, and function confirmation. The elastic element 21 is disposed on the bottom surface of the rotating element 20 to provide a restoring force for the rotating element 20.

[0039] When the mounting component 30 is subjected to downward pressure, the rotating component 20 and the mounting component 30 sink synchronously. When the mounting component 30 loses the downward pressure, the elastic component 21 can drive the rotating component 20 and the mounting component 30 to reset.

[0040] Based on the above, by adding an elastic element 21 to the bottom of the rotating part 20 to provide a reset spring force, it no longer relies solely on the internal elastic structure of the encoder 40 to achieve the pressing and rebound. At the same time, it can also share the pressing load of the encoder 40, extend the life of the encoder 40's spring component, and when the spring component built into the encoder 40 suffers metal fatigue due to long-term repeated deformation, the elastic element 21 provides assisted rebound, which greatly reduces the probability of product rebound jamming, incomplete reset, button jamming, or even functional failure, and significantly improves product durability and service life.

[0041] Preferably, in one embodiment of the present invention, a plurality of elastic elements 21 are provided, and the plurality of elastic elements 21 are arranged at circumferential intervals along the rotating member 20.

[0042] It is understandable that in practical applications, due to the encoder 40's own rotation adjustment function and the user's operating habits, the pressing position of the mounting part 30 is not fixed. Therefore, by setting multiple elastic elements 21 and spacing them around the circumference of the rotating part 20, when in use, no matter where the user applies pressure to the mounting part 30, the corresponding elastic elements 21 can provide a rebound force to ensure its rebound effect.

[0043] Preferably, in one embodiment of the present invention, three elastic elements 21 are provided, and the three elastic elements 21 are arranged at circumferential intervals along the rotating member 20.

[0044] Thus, by employing three elastic elements 21 spaced circumferentially along the rotating component 20, the three-point layout structure is stable and the force distribution is uniform. Regardless of the user's pressing position, effective support and rebound from the nearest elastic element 21 are obtained, ensuring balanced pressing feedback throughout the entire process. Uneven rebound force and delayed reset due to different pressing points are avoided. Furthermore, the use of too many elastic elements 21 prevents overall structural redundancy and helps reduce production costs.

[0045] Preferably, in one embodiment of the present invention, the bottom surface of the rotating member 20 is provided with a mounting hole 22, and the elastic member 21 is detachably disposed in the mounting hole 22.

[0046] Thus, by providing the mounting hole 22 on the bottom surface of the rotating component 20 and detachably placing the elastic component 21 in the mounting hole 22, the elastic component 21 can be limited and positioned, preventing it from shifting, falling off or misaligning during the pressing process, ensuring the stability of the elastic component 21 under force, further ensuring the accuracy and reliability of the pressing and rebound action, and improving the overall structural stability.

[0047] Preferably, in one embodiment of the present invention, the elastic element 21 is a ball screw.

[0048] Thus, due to its high structural integration, inherent elastic tightening and reset properties, ball screws offer stable and rapid rebound force. Furthermore, as a standard universal component, ball screws are easy to procure and highly interchangeable, effectively reducing component production costs. Simultaneously, ball screws are convenient to install and provide good limiting effect, preventing displacement or loosening under pressure. They maintain stable elastic output for a long time, withstand frequent pressing conditions, and are less prone to elastic decay or fatigue failure, continuously ensuring smooth pressing and reset, significantly improving the overall durability and stability of the mechanism. Of course, the elastic component 21 is not limited to a ball screw; it can also be other structures, such as a return spring, a spring sheet, or an elastic sponge, the specific choice depending on actual production requirements.

[0049] Preferably, in one embodiment of the present invention, the base 10 is provided with a mounting cavity 11, the upper surface of the base 10 is provided with a through groove 12 communicating with the mounting cavity 11, the top surface of the mounting cavity 11 is provided with a stepped surface 13, and the stepped surface 13 extends circumferentially along the through groove 12.

[0050] The rotating member 20 passes through the through groove 12. The outer edge of the rotating member 20 is provided with a limiting part 23 extending circumferentially. The limiting part 23 is attached to the stepped surface 13 to restrict the rotating member 20 to the base 10.

[0051] Thus, by providing an installation cavity 11, a through groove 12, and a circumferentially extending stepped surface 13 inside the base 10, and by providing a limiting part 23 on the outside of the rotating part 20, the limiting part 23 fits against the stepped surface 13 to achieve axial limiting fit. This allows for vertical limiting constraint of the rotating part 20, preventing it from detaching from the base 10 and ensuring the integrity of the overall assembly structure.

[0052] Advantageously, in another embodiment of the invention, the base 10 may be configured as an upper body and a lower body, and the lower body and the upper body are detachable structures, so that the mounting cavity 11 can be opened to facilitate the installation of the rotating member 20.

[0053] Advantageously, in another embodiment of the invention, the bottom surface of the base 10 is provided with a magnetic block for adsorbing the entire base 10 onto the metal plane.

[0054] Preferably, in one embodiment of the present invention, the bottom surface of the mounting cavity 11 is provided with a fixing platform 14, and the lower end of the encoder 40 is detachably connected to the fixing platform 14.

[0055] It is understandable that the lower and upper parts of the encoder 40 are rotatable relative to each other. Therefore, in order to achieve the rotation adjustment function, the lower part needs to be fixed and the upper part needs to be rotatable. Thus, by setting the fixed platform 14, while the encoder 40 is mounted on the mounting member 30, its lower end is restricted on the fixed platform 14. Therefore, when the mounting member 30 is rotated, only the upper part of the encoder 40 will be rotated, thereby realizing the rotation adjustment function of the encoder 40.

[0056] For example, in another embodiment of the present invention, a slot may be provided on the upper surface of the fixed platform 14, and a vertical insertion part is provided in the middle of the slot. The lower end of the encoder 40 is generally provided with a slot. When the lower end of the encoder 40 is inserted into the slot, the insertion part is inserted into the slot, thereby restricting the encoder 40 to a state where it is prohibited from rotating along its own axis. During disassembly and assembly, it is only necessary to insert and pull out, making the installation more convenient and quick.

[0057] Preferably, in one embodiment of the present invention, the bottom surface of the mounting cavity 11 is provided with a boss portion 15, the boss portion 15 is annular and coaxially arranged with the mounting platform. When the mounting member 30 sinks, the lower end of the elastic member 21 abuts against the surface of the boss portion 15, so that the elastic member 21 switches to a contracted state.

[0058] Thus, since the protrusion 15 is annular and coaxially arranged with the mounting platform, regardless of how the rotating member 20 rotates, when it is subjected to force and sinks, the lower end of the elastic member 21 can stably abut against the protrusion 15, thereby achieving stable compression of the elastic member 21. At the same time, by providing the protrusion 15 on the bottom surface of the mounting cavity 11, the thickness of the portion below the bottom surface of the mounting cavity 11 of the base 10 is reduced, which helps to save materials and reduce production costs.

[0059] On the other hand, such as Figure 7 As shown, a speaker 50 according to an embodiment of the present invention has an auxiliary rebound mechanism as described above.

[0060] Thus, by setting the auxiliary rebound mechanism on the speaker 50, it no longer relies solely on the internal elastic structure of the encoder 40 to achieve press rebound. At the same time, it can also share the pressing load of the encoder 40, extend the life of the encoder 40 rebound component, and after the rebound component built into the encoder 40 suffers metal fatigue due to long-term repeated deformation, the elastic component 21 provides auxiliary rebound, which greatly reduces the probability of product rebound jamming, incomplete reset, button jamming, or even functional failure, and significantly improves product durability and service life.

[0061] Furthermore, an electronic device according to an embodiment of the present invention has the auxiliary rebound mechanism described above.

[0062] Thus, by setting the auxiliary rebound mechanism on the electronic device, it no longer relies solely on the internal elastic structure of the encoder 40 to achieve press rebound. At the same time, it can also share the pressing load of the encoder 40, extend the life of the encoder 40 rebound component, and when the rebound component built into the encoder 40 suffers metal fatigue due to long-term repeated deformation, the elastic component 21 provides auxiliary rebound, which greatly reduces the probability of product rebound jamming, incomplete reset, button jamming, or even functional failure, and significantly improves product durability and service life.

[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0064] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. An auxiliary rebound mechanism, characterized in that, include: Base; A rotating component, which is mounted on the base and can rotate along the axis of the base; Mounting component, the mounting component being connected above the rotating component; An encoder, which is mounted on the mounting component and whose lower end is connected to the base; An elastic element is disposed on the bottom surface of the rotating element to provide a restoring force to the rotating element; When the mounting component is subjected to downward pressure, the rotating component and the mounting component sink synchronously. When the mounting component loses the downward pressure, the elastic component can drive the rotating component and the mounting component to reset.

2. The auxiliary rebound mechanism according to claim 1, characterized in that, The elastic element is provided in multiple ways, and the multiple elastic elements are arranged at intervals along the circumference of the rotating element.

3. The auxiliary rebound mechanism according to claim 1, characterized in that, The elastic element is provided in three parts, and the three elastic elements are arranged at intervals along the circumference of the rotating element.

4. The auxiliary rebound mechanism according to claim 1, characterized in that, The bottom surface of the rotating component is provided with a mounting hole, and the elastic component is detachably disposed in the mounting hole.

5. The auxiliary rebound mechanism according to claim 1, characterized in that, The elastic element is a ball screw.

6. The auxiliary rebound mechanism according to claim 1, characterized in that, The base has a mounting cavity, the upper surface of the base has a through groove communicating with the mounting cavity, and the top surface of the mounting cavity has a stepped surface that extends circumferentially along the through groove. The rotating component is inserted into the through groove, and the outer edge of the rotating component is provided with a limiting part that extends circumferentially. The limiting part is attached to the step surface to restrict the rotating component to the base.

7. The auxiliary rebound mechanism according to claim 6, characterized in that, The bottom surface of the mounting cavity is provided with a fixed platform, and the lower end of the encoder is detachably connected to the fixed platform.

8. The auxiliary rebound mechanism according to claim 6, characterized in that, The bottom surface of the mounting cavity is provided with a boss portion. The boss portion is annular and coaxially arranged with the mounting platform. When the mounting component sinks, the lower end of the elastic element abuts against the surface of the boss portion, so that the elastic element switches to a contracted state.

9. A speaker, characterized in that, It has an auxiliary rebound mechanism as described in any one of claims 1 to 8.

10. An electronic device, characterized in that, It has an auxiliary rebound mechanism as described in any one of claims 1 to 8.