Anti-shake sound box body structure and assembly process thereof

Abstract

The invention discloses an anti-shake sound box body structure and an assembling process thereof, the anti-shake sound box body structure comprises a box body assembly and a supporting leg assembly arranged on the lower end face of the box body assembly, and the box body assembly is provided with a main cavity; each supporting leg assembly comprises a first surface used for supporting and a second surface formed by a concave arc, a linkage cavity is formed in the second surface, a connecting channel is formed in the position, corresponding to the supporting leg assembly, of the box body assembly, and the two ends of the connecting channel communicate with the main cavity and the linkage cavity correspondingly; the first surface is used for transmitting air waves in the main cavity to the linkage cavity and the second surface; when a loudspeaker unit in the sound box works, strong vibration is generated, air waves are directly conducted to a second surface in an arc-shaped linkage cavity of the supporting leg assembly through a channel which is connected in a penetrating mode, dynamic pressure is generated on the cavity wall, an air filling effect is formed, and reverse and dynamically-changing supporting force is generated on supporting legs and a whole box body. And efficient damping and stable supporting are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sound technology, in particular to a jitter-proof sound box structure and an assembling process thereof. BACKGROUND

[0002] The sound quality performance of a sound equipment, especially a loudspeaker system pursuing high-fidelity sound quality and strong low-frequency performance, depends not only on the loudspeaker unit and circuit design, but also on the vibration control of the box itself. When the loudspeaker is working, especially when playing low-frequency signals, the strong reciprocating motion of the voice coil will produce significant mechanical vibration. These vibrations will be transmitted to the entire box, causing harmful resonance of the box panel, and further transmitted to the placement surface (such as a table top or floor) through the support structure at the bottom of the box. This transmission will cause energy loss, sound blurring, and even resonance of the placed object, degrading the overall listening experience.

[0003] Currently, the commonly used damping solutions in the industry are mostly passive isolation. The most common method is to install an elastic pad made of rubber, silicone or foaming material at the bottom of the box, or to use a composite damping foot nail containing damping medium inside. The core principle of these technologies is to absorb vibration energy by deforming the elastic material, or to change the vibration transmission path by increasing the contact stress of the support point. However, such passive solutions have a fundamental limitation: their damping effectiveness is static and fixed, relying on the damping characteristics of the material itself, and cannot match the dynamically changing, especially the instantaneous high-energy low-frequency vibrations when the loudspeaker unit is working. When the loudspeaker unit produces intense and transient low-frequency vibrations, the traditional elastic pad is easily to reach its deformation and damping limit, either unable to effectively buffer due to "breakthrough", or the inherent resonant frequency is coupled with the vibration to exacerbate energy transmission, causing the box to shake or collide with the placement surface. In short, the existing technology mainly tries to "hardly resist" or "absorb" the vibration, and cannot real-time and self-adaptively convert and utilize the vibration energy, which is limited in handling large dynamic low-frequency vibrations, and becomes a bottleneck for improving the overall stability and sound quality purity of the sound system. SUMMARY

[0004] The purpose of the present application is to provide a jitter-proof sound box structure and an assembling process thereof, which solve the above technical problems.

[0005] To achieve this purpose, the present application adopts the following technical solutions: A jitter-proof sound box structure, comprising a box assembly and a support foot assembly arranged at the lower end surface of the box assembly, the box assembly having a main cavity; The support leg assembly comprises a first surface for supporting and a second surface formed in a concave arc shape, and the second surface is formed with a linkage cavity; the box assembly is provided with a connecting channel corresponding to the position of the support leg assembly, and two ends of the connecting channel are communicated with the main cavity and the linkage cavity respectively for conducting the air flow in the main cavity to the linkage cavity and the second surface.

[0006] Optionally, the support leg assembly comprises an arc-shaped shell made of elastic material, and an inner wall of the arc-shaped shell forms the second surface; at least one reinforcing rib is further arranged in the arc-shaped shell, and the reinforcing rib is connected to opposite sides of the inner wall of the arc-shaped shell for maintaining the structural shape of the linkage cavity and guiding the air flow.

[0007] Optionally, the connecting channel is formed by a separate connecting seat component, and the connecting seat component comprises a mounting portion threadedly connected to the box assembly and a docking portion for clamping the support leg assembly; the docking portion is embedded with a ring-shaped sealing member for realizing the air-tight sealing between the linkage cavity and the connecting channel after the support leg assembly is clamped.

[0008] Optionally, the cross-sectional area of the connecting channel gradually decreases in the direction from the main cavity to the linkage cavity, forming a tapered air flow channel.

[0009] Optionally, the box assembly is provided with a plurality of connecting channels corresponding to the positions of the support leg assemblies, and the plurality of connecting channels are arranged around and communicated with the linkage cavity.

[0010] The application further provides an assembling process of the anti-shaking sound box structure, which is used for assembling the anti-shaking sound box structure as described above, and the assembling process comprises the following steps: S1, providing a formed box assembly, at least one support leg assembly and a connecting seat separated from the box assembly, the support leg assembly has an arc-shaped shell and a linkage cavity surrounded by an inner wall thereof, and the connecting seat is formed with a connecting channel; S2, fixing and mounting the connecting seat to a pre-set mounting hole at the bottom of the box assembly, so that one end of the connecting channel is communicated with the main cavity of the box assembly; S3, docking the support leg assembly with the fixed connecting seat, so that the linkage cavity is communicated with the main cavity through the other end of the connecting channel; S4, applying a sealing material at the docking position of the support leg assembly and the connecting seat and performing a curing treatment to form an air-tight structure without leakage conduction between the main cavity and the linkage cavity.

[0011] Optionally, after step S4, the following steps are further included: S5, apply gas at a preset pressure to the main cavity and detect whether there is leakage at the joint between the support foot assembly and the connecting seat; and / or, drive the speaker unit installed in the housing assembly to work and detect whether the shock absorption response of the support foot assembly meets the preset standard.

[0012] Optionally, the application of sealing material specifically involves: using a dispensing device to evenly coat a ring of room temperature curing silicone or UV curing adhesive along the mating gap between the support leg assembly and the connector; the curing process is performed immediately after coating.

[0013] Optionally, before step S1, the method further includes: S0, in the section where the connecting seat and the housing assembly are threaded together, a thread-locking sealant is pre-applied and pre-cured to form a first-level sealing structure between the connecting channel and the main cavity.

[0014] Compared with the prior art, the present invention has the following beneficial effects: When the speaker unit inside the speaker works, it generates strong vibrations. This vibration energy excites and pushes the air in the main cavity, forming regular dynamic air pressure fluctuations, i.e., air waves. These air waves are directly transmitted to the arc-shaped linkage cavity of the support foot assembly through the through-connecting channel. The air waves transmitted to the linkage cavity act on its concave arc-shaped second surface, generating dynamic pressure on the cavity wall and forming an air filling effect. According to the principle of action and reaction, this pressure simultaneously generates a reverse, dynamically changing support force on the support foot and the entire enclosure. This reverse support force can offset and buffer a portion of the original vibration energy transmitted from the speaker to the enclosure and support points in real time, thereby achieving efficient vibration reduction and stable support, thus realizing active and efficient vibration reduction by using vibration to counteract vibration. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0017] Figure 1 This is a schematic diagram of the overall structure of the anti-shake speaker enclosure in Embodiment 1. Figure 2 This is a cross-sectional structural diagram of the anti-shake speaker enclosure structure in Embodiment 1. Figure 3 The anti-shake speaker enclosure structure of this embodiment one Figure 2 A magnified schematic diagram of the partial structure at point A in the middle; Illustration: Box assembly 10, support foot assembly 20, main cavity 11, first surface 21, second surface 22, linkage cavity 23, seal 34, connecting channel 31, arc-shaped shell 24, reinforcing rib 25, connecting seat component 30, mounting part 32, docking part 33. Detailed Implementation

[0018] To make the objectives, features, and advantages of this invention more apparent and understandable, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0019] In the description of this invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not 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 the invention. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component positioned centrally in the connection.

[0020] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] Example 1: Combination Figures 1 to 3 As shown, this embodiment of the invention provides a vibration-damping speaker enclosure structure, including an enclosure assembly 10 and a support foot assembly 20 disposed on the lower end face of the enclosure assembly 10. The enclosure assembly 10 has a main cavity 11. The support foot assembly 20 includes a first surface 21 for support and a second surface 22 formed in an inwardly concave arc shape. The second surface 22 forms a linkage cavity 23. The enclosure assembly 10 has a connecting channel 31 corresponding to the position of the support foot assembly 20. The two ends of the connecting channel 31 are respectively connected to the main cavity 11 and the linkage cavity 23 for transmitting air waves in the main cavity 11 to the linkage cavity 23 and the second surface 22.

[0022] The working principle of this invention is as follows: When the speaker unit inside the audio system operates, it generates strong vibrations. This vibration energy excites and pushes the air inside the main cavity 11, forming regular dynamic air pressure fluctuations, i.e., air waves. These air waves are directly transmitted to the arc-shaped linkage cavity 23 of the support foot assembly 20 through the through-connected channel. The air waves transmitted to the linkage cavity 23 act on its concave arc-shaped second surface 22, generating dynamic pressure on the cavity wall and forming an air filling effect. According to the principle of action and reaction, this pressure simultaneously generates a reverse, dynamically changing support force on the support foot and the entire enclosure. This reverse support force can offset and buffer a portion of the original vibration energy transmitted from the speaker to the enclosure and support points in real time, thereby achieving efficient vibration reduction and stable support, thus realizing active and efficient vibration reduction by using vibration to counteract vibration.

[0023] In this embodiment, the support foot assembly 20 includes an arc-shaped shell 24 made of elastic material, and the inner wall of the arc-shaped shell 24 forms a second surface 22; at least one reinforcing rib 25 is also provided inside the arc-shaped shell 24, and the reinforcing rib 25 connects the opposite sides of the inner wall of the arc-shaped shell 24 to maintain the structural shape of the linkage cavity 23 and guide the airflow.

[0024] It should be noted that the support foot assembly 20 is not a simple empty shell; its core is an arc-shaped shell 24 made of an elastic material (such as silicone, TPU, or a specific rubber). The inner wall of this shell directly forms the crucial second surface 22 (i.e., the inner wall of the linkage cavity 23). To maintain shape stability and optimize airflow under dynamic air pressure, at least one reinforcing rib 25 is also provided inside the arc-shaped shell 24. These reinforcing ribs 25 connect opposite sides of the inner wall of the shell and serve three functions: first, as an internal skeleton, they prevent the arc-shaped shell 24 from undergoing uncontrollable deformation under air pressure impact or external pressure, ensuring the functional stability of the "linkage cavity 23" as a pneumatic damping cavity; second, as a guide vane, it guides the airflow to impact the various areas of the arc-shaped inner wall more orderly and fully when air waves surge in, improving the uniformity and efficiency of energy conversion; and third, it enhances the local structural strength, making the support foot more durable when bearing the weight of the enclosure. This design, while ensuring flexible damping, endows the core functional cavity with ideal shape retention and airflow guiding characteristics through the built-in rigid structure.

[0025] In this embodiment, the connecting channel 31 is formed by an independent connecting seat component 30. The connecting seat component 30 includes a mounting part 32 that is threadedly connected to the housing assembly 10, and a docking part 33 for the support foot assembly 20 to engage. The docking part 33 is provided with an annular sealing element 34, which is used to achieve an airtight seal between the linkage cavity 23 and the connecting channel 31 after the support foot assembly 20 is engaged.

[0026] It should be noted that the connecting channel 31 is not a direct opening in the housing, but is formed by a separate connecting seat component 30. This component integrates two connection functions: its mounting part 32 is securely connected to the housing assembly 10 via threads, which is easy to adjust and provides reliable pre-tightening force; its mating part 33 is specifically designed for the support leg assembly 20, allowing for quick snap-fit. To achieve the crucial airtightness, an annular seal (such as an O-ring or a shaped seal ring) is pre-embedded in the mating part 33. When the support leg assembly 20 is snapped into place, the seal is compressed, thus forming a reliable airtight barrier between the two. This design integrates the three functions of penetration, connection, and sealing into a single component, achieving standardized and convenient assembly, and ensuring the consistency and reliability of the sealing performance at the air passage connection.

[0027] As a preferred embodiment, the cross-sectional area of ​​the connecting channel 31 gradually decreases along the direction from the main cavity 11 to the linkage cavity 23, forming a gradually narrowing airflow channel.

[0028] It should be noted that the form of the connecting channel 31 is specifically defined in this embodiment. The cross-sectional area of ​​this channel gradually decreases along the direction from the main cavity 11 to the linkage cavity 23, forming a tapered or Venturi-shaped airflow channel. The aerodynamic principle is that when air waves enter this tapered channel from the larger main cavity 11, the airflow velocity increases significantly due to the reduced cross-section. This brings two core benefits: first, it improves the rate and efficiency of air wave transmission, enabling the linkage cavity 23 to respond more quickly to changes in air pressure within the main cavity 11, thus enhancing the dynamic response sensitivity of the damping system; second, the accelerated airflow has higher kinetic energy, and when it enters the linkage cavity 23 and impacts the arc-shaped inner wall, it can generate stronger and more concentrated dynamic pressure, which may theoretically enhance the peak value of the reverse support force generated in each air pressure fluctuation cycle, thus optimizing the damping effect.

[0029] In this embodiment, the housing assembly 10 has multiple connecting channels 31 corresponding to the position of a support leg assembly 20. The multiple connecting channels 31 are arranged around each other and are all connected to the linkage cavity 23.

[0030] This design constructs a multi-path system. Its advantages are: First, even if a single channel experiences obstructed flow due to foreign objects or manufacturing defects, other channels can still ensure effective transmission of air waves, significantly improving the system's reliability; Second, it achieves uniform airflow, with the surrounding channels allowing air waves to enter the linkage cavity 23 simultaneously from multiple directions, thereby applying more uniform and balanced dynamic pressure to the arc-shaped inner wall, avoiding vibration mode changes that may be caused by single-point impacts, and making the damping effect of the support legs more stable.

[0031] Example 2: The present invention also provides an assembly process for a shake-stabilized speaker enclosure structure, used to assemble the shake-stabilized speaker enclosure structure as described in Embodiment 1. The assembly process includes the following steps: S0, in the section where the connecting seat and the housing assembly 10 are threaded together, a thread-locking sealant is pre-applied and pre-cured to form a first-level sealing structure between the connecting channel 31 and the main cavity 11.

[0032] Its purpose is threefold: first, to form a primary sealing structure through pre-curing, fundamentally preventing air leakage from the threaded gaps and ensuring the airtightness of the foundation; second, to utilize the locking properties of the sealant to prevent the connector from loosening during subsequent assembly or vibration, thereby improving structural reliability. This step embodies the process design concept of graded sealing, decomposing the total sealing pressure and reducing the difficulty and risk of the final assembly stage.

[0033] S1 provides a pre-formed housing assembly 10, at least one support foot assembly 20, and a connecting seat separate from the housing assembly 10. The support foot assembly 20 has an arc-shaped housing 24 and a linkage cavity 23 surrounded by its inner wall. A connecting channel 31 is formed in the connecting seat.

[0034] S2, fix the connector to the preset mounting hole at the bottom of the housing assembly 10, so that one end of the connecting channel 31 is connected to the main cavity 11 of the housing assembly 10.

[0035] Specifically, the connector is securely installed into the pre-drilled hole at the bottom of the housing using a threaded connection. The key to this operation is ensuring that the connecting channel 31 within the connector is accurately aligned and connected to the main cavity 11 of the housing. This step establishes the port for airflow from the main cavity 11, and the installation accuracy directly affects the efficiency of subsequent air conduction.

[0036] S3, connect the support foot assembly 20 to the fixed connecting seat, so that the linkage cavity 23 is connected to the main cavity 11 through the other end of the connecting channel 31.

[0037] Connect the support leg assembly 20 to the installed connector (usually via a snap-fit ​​connection). The connection must ensure that the linkage cavity 23 inside the support leg, through the channel of the connector, forms a continuous, unobstructed through space with the main cavity 11.

[0038] S4, apply sealing material to the mating point between the support leg assembly 20 and the connecting seat and perform curing treatment to form an airtight structure with no leakage conduction between the main cavity 11 and the linkage cavity 23.

[0039] It should be noted that a specialized sealing material (such as silicone or UV adhesive) is applied to the joint between the support leg and the connecting seat, and then cured. This treatment forms a flexible second-level sealing barrier on top of the mechanical connection. Together with the first-level seal that may be formed in step S0, it ensures that air currents do not leak through the complex transmission path, guaranteeing long-term stable shock absorption performance.

[0040] S5, apply gas at a preset pressure to the main cavity 11 and check for leaks at the joint between the support foot assembly 20 and the connector; and / or, drive the speaker unit installed in the enclosure assembly 10 to work and check whether the damping response of the support foot assembly 20 meets the preset standard.

[0041] Static airtightness testing verifies the absolute reliability of the sealing process by pressurizing the main cavity 11 and detecting leaks. Dynamic functional testing directly verifies whether the shock absorption response of the support leg assembly 20 meets theoretical design expectations by actually driving the horn to work.

[0042] In this embodiment, the application of sealing material specifically involves: using a dispensing device to evenly coat a ring of room temperature curing silicone or UV curing adhesive along the mating gap between the support leg assembly 20 and the connector; the curing process is performed immediately after coating.

[0043] The above-described embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vibration-damping speaker enclosure structure, characterized in that, It includes a housing assembly (10) and a support foot assembly (20) disposed on the lower end face of the housing assembly (10), the housing assembly (10) having a main cavity (11); The support foot assembly (20) includes a first surface (21) for support and a second surface (22) formed by an inward arc. The second surface (22) forms a linkage cavity (23). The housing assembly (10) has a connecting channel (31) corresponding to the position of the support foot assembly (20). The two ends of the connecting channel (31) are respectively connected to the main cavity (11) and the linkage cavity (23) for conducting air waves in the main cavity (11) to the linkage cavity (23) and the second surface (22).

2. The anti-shake speaker enclosure structure according to claim 1, characterized in that, The support foot assembly (20) includes an arc-shaped shell (24) made of elastic material, the inner wall of which forms the second surface (22); at least one reinforcing rib (25) is also provided inside the arc-shaped shell (24), the reinforcing rib (25) connecting opposite sides of the inner wall of the arc-shaped shell (24) to maintain the structural shape of the linkage cavity (23) and guide the flow of air waves.

3. The anti-shake speaker enclosure structure according to claim 1, characterized in that, The connecting channel (31) is formed by an independent connecting seat component (30), which includes a mounting part (32) that is threadedly connected to the housing assembly (10) and a mating part (33) for engaging with the support foot assembly (20). The mating part (33) is fitted with an annular seal to achieve an airtight seal between the linkage cavity (23) and the connecting channel (31) after the support foot assembly (20) is engaged.

4. The anti-shake speaker enclosure structure according to claim 3, characterized in that, The cross-sectional area of ​​the connecting channel (31) gradually decreases along the direction from the main cavity (11) to the linkage cavity (23), forming a gradually narrowing airflow channel.

5. The anti-shake speaker enclosure structure according to claim 1, characterized in that, The housing assembly (10) has multiple connection channels (31) corresponding to the position of one of the support foot assemblies (20). The multiple connection channels (31) are arranged around each other and are all connected to the linkage cavity (23).

6. An assembly process for a vibration-damping speaker enclosure structure, characterized in that, For assembling the anti-shake speaker enclosure structure as described in any one of claims 1 to 5, the assembly process includes the following steps: S1, a pre-formed housing assembly (10), at least one support foot assembly (20), and a connecting seat separate from the housing assembly (10) are provided. The support foot assembly (20) has an arc-shaped shell (24) and a linkage cavity (23) surrounded by its inner wall. A connecting channel (31) is formed in the connecting seat. S2, the connecting seat is fixedly installed to the preset mounting hole at the bottom of the housing assembly (10), so that one end of the connecting channel (31) is connected to the main cavity (11) of the housing assembly (10); S3, dock the support foot assembly (20) with the fixed connecting seat, so that the linkage cavity (23) is connected to the main cavity (11) through the other end of the connecting channel (31); S4, apply sealing material and cure it at the joint between the support leg assembly (20) and the connecting seat to form an airtight structure with no leakage conduction between the main cavity (11) and the linkage cavity (23).

7. The assembly process of the anti-shake speaker enclosure structure according to claim 6, characterized in that, Following step S4, the following is also included: S5, apply gas at a preset pressure to the main cavity (11) and detect whether there is leakage at the joint between the support foot assembly (20) and the connecting seat; and / or, drive the speaker unit installed in the housing assembly (10) to work and detect whether the shock absorption response of the support foot assembly (20) meets the preset standard.

8. The assembly process of the anti-shake speaker enclosure structure according to claim 6, characterized in that, The application of sealing material specifically involves using a dispensing device to uniformly coat a ring of room temperature curing silicone or UV curing adhesive along the mating gap between the support leg assembly (20) and the connecting seat; the curing process is performed immediately after coating.

9. The assembly process of the anti-shake speaker enclosure structure according to claim 6, characterized in that, Before step S1, the following is also included: S0, in the section where the connecting seat and the housing assembly (10) are threaded together, a thread-locking sealant is pre-applied and pre-cured to form a first-level sealing structure between the connecting channel (31) and the main cavity (11).

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