Sound-producing waterproof unit anti-impact buffering protection structure

CN224775034UActive Publication Date: 2026-09-18GWN (TIANJIN) PRECISION ELECTRONIC CORP LTD
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Patent Information

Application Number
CN202521910536.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-05
Publication Date
2026-09-18
Estimated Expiration
2035-09-05

AI Technical Summary

Technical Problem

[0002]在音频设备领域,发声防水单元被广泛应用于户外环境,在户外环境使用时发声防水单元需要具备良好的防水性能以及抗冲击能力,目前现有的发声防水单元多采用缓冲泡棉等单一的缓冲材料进行防护,以增厚缓冲泡棉的方式作为主要减震手段,但厚缓冲泡棉占用大量内部空间,且仅能通过材料自身形变缓冲,当受到冲击时内壳体易与外壳体直接碰撞,内部元件易受损

Benefits of technology

1、通过侧向支撑丝和顶部悬丝的弹力支撑,增加了内壳体与外壳体之间的弹性,从而减少了缓冲泡棉的厚度,较细的支撑丝分布于内壳体四周,进一步降低了空间占用,在冲击不超过弹力范围时,内壳体不与外壳体直接接触,减少了所受冲击力,配合橡胶材质的弹性片和连接胶圈的辅助缓冲,进一步提升了对较小冲击的抵御能力。

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Abstract

The utility model relates to a sound unit anti -impact structure technical field, concretely relates to a kind of sound emission waterproof unit anti -impact buffering protection structure, including outer shell, inner shell and buffering component, buffering component is located at the top of outer shell, buffering component is used for the buffering between outer shell and inner shell, buffering component includes top shell, elastic sheet and connecting rubber ring, elastic sheet is inserted into the inside of top shell, elastic sheet is slidably connected with the inside of top shell, lateral support wire is equipped between the outside wall of outer shell and the inside wall of inner shell, and top suspension wire is equipped between the top of inner shell and top shell.The utility model is supported by the elasticity of lateral support wire and top suspension wire, increase the elasticity between inner shell and outer shell, the support wire of relatively thin distribution is in the four around of inner shell, further reduce the space occupation, when impact does not exceed elastic range, inner shell does not directly contact with outer shell, and the impact force received is reduced.
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Description

Technical Field

[0001] This utility model relates to the technical field of impact-resistant structure for sound-generating units, specifically an impact-resistant buffer protection structure for a waterproof sound-generating unit. Background Technology

[0002] In the field of audio equipment, waterproof sound-emitting units are widely used in outdoor environments. When used outdoors, waterproof sound-emitting units need to have good waterproof performance and impact resistance. Currently, most existing waterproof sound-emitting units use single cushioning materials such as cushioning foam for protection, and thickening the cushioning foam is the main means of shock absorption. However, thick cushioning foam occupies a lot of internal space and can only cushion through the deformation of the material itself. When subjected to impact, the inner shell is prone to direct collision with the outer shell, and the internal components are easily damaged.

[0003] Therefore, a sound-generating waterproof unit shock-proof buffer protection structure is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a sound-generating waterproof unit impact-resistant buffer protection structure. Through the elastic support of lateral support wires and top suspension wires, the elasticity between the inner and outer shells is increased, thereby reducing the thickness of the buffer foam. The finer support wires distributed around the inner shell further reduce space occupation. When the impact does not exceed the elasticity range, the inner shell does not directly contact the outer shell, reducing the impact force. In the event of a larger impact, the ball bearings at the bottom of the inner shell first contact the bottom surface of the outer shell, guiding the inner shell to move along the bottom surface and directing the vertically downward impact force to the side. Simultaneously, the inner shell compresses the lateral support wires, causing the inner shell to swing left and right, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: including an outer shell, an inner shell, and a buffer assembly, wherein the buffer assembly is located on the top of the outer shell and is used for buffering between the outer shell and the inner shell; The buffer assembly includes a top housing, an elastic sheet, and a connecting rubber ring. The elastic sheet is inserted into the inside of the top housing and is slidably connected to the inside of the top housing. The connecting rubber ring is fixedly connected to the bottom of the elastic sheet, and the other end of the connecting rubber ring is connected to the top of the inner housing. A lateral support wire is provided between the outer side wall of the outer shell and the inner side wall of the inner shell, and a top suspension wire is provided between the top of the inner shell and the top shell.

[0006] Preferably, the top suspension wire is W-shaped, with one end inserted into the bottom of the top housing and fixedly connected to the top housing, and the other end inserted into the top of the inner housing.

[0007] Preferably, the lateral support wire is S-shaped, with one end inserted into the inner side of the outer shell and fixedly connected to the inner shell, and the other end inserted into the outer side of the inner shell.

[0008] Preferably, a flexible sheet is fixedly connected to the outer side of the elastic sheet, and the other side of the flexible sheet is fixedly connected to the inner side of the top housing.

[0009] Preferably, the top housing has a cavity on the surface near the flexible sheet, and the flexible sheet is folded multiple times within the cavity.

[0010] Preferably, a ball bearing is rotatably connected to the bottom of the inner shell, and a ring of cushioning foam is fixedly bonded to the outer side of the inner shell.

[0011] Preferably, the bottom of the inner housing has a groove, and a mounting base is bonded to the bottom of the inner housing by a buffer pad. The mounting base is located in the groove, and the ball bearing is mounted on the bottom of the mounting base.

[0012] Compared with the prior art, this utility model provides a sound-generating waterproof unit shock-proof buffer protection structure, which has the following beneficial effects: 1. The elastic support of the lateral support wires and the top suspension wires increases the elasticity between the inner shell and the outer shell, thereby reducing the thickness of the cushioning foam. The finer support wires are distributed around the inner shell, further reducing the space occupied. When the impact does not exceed the elastic range, the inner shell does not directly contact the outer shell, reducing the impact force. Combined with the auxiliary cushioning of the rubber elastic sheet and the connecting rubber ring, the ability to resist smaller impacts is further improved.

[0013] 2. When encountering a large impact, the ball bearings at the bottom of the inner shell first contact the bottom surface of the outer shell, guiding the inner shell to move along the bottom surface and directing the vertically downward impact force to the side. At the same time, the inner shell squeezes the lateral support wires, causing the inner shell to swing left and right, further dispersing and reducing the single impact force. The buffer pad and buffer foam also provide auxiliary buffering when the ball bearings contact and when the shell side contacts, respectively, to prevent internal parts from being damaged by large impacts. Attached Figure Description

[0014] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 A partial cross-sectional structural diagram of the impact-resistant buffer protection structure for the sound-generating waterproof unit of this utility model; Figure 2A cross-sectional structural diagram of the impact-resistant buffer protection structure for the sound-generating waterproof unit of this utility model; Figure 3 An isometric structural diagram of the impact-resistant buffer protection structure for the sound-generating waterproof unit of this utility model; Figure 4 A schematic diagram of the outer structure of the inner shell of the sound-generating waterproof unit of this utility model; Figure 5 A schematic diagram of the lower surface structure of the top shell of the sound-generating waterproof unit provided by this utility model; Figure 6 A schematic diagram of the elastic sheet structure provided for the impact-resistant buffer protection structure of the sound-generating waterproof unit of this utility model.

[0015] In the diagram: 1. Outer shell; 2. Inner shell; 3. Buffer assembly; 4. Lateral support wire; 5. Top suspension wire; 6. Flexible sheet; 7. Cavity; 8. Ball bearing; 9. Buffer foam; 10. Mounting base; 11. Buffer pad; 301. Top shell; 302. Elastic sheet; 303. Connecting rubber ring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0017] Please see Figure 1 - Figure 6 The sound-generating waterproof unit impact-resistant buffer protection structure in this embodiment includes an outer shell 1, an inner shell 2, and a buffer assembly 3. The buffer assembly 3 is located on the top of the outer shell 1 and is used for buffering between the outer shell 1 and the inner shell 2. A lateral support wire 4 is provided between the outer side wall of the outer shell 1 and the inner side wall of the inner shell 2. A top suspension wire 5 is provided between the top of the inner shell 2 and the top shell 301. The top suspension wire 5 suspends the inner shell 2 at the bottom of the top shell 301. The lateral support wire 4 supports the outer side of the inner shell 2 so that the inner shell 2 does not directly contact the outer shell 1.

[0018] The lateral support wire 4 is S-shaped. One end of the lateral support wire 4 is inserted into the inner side of the outer shell 1 and fixedly connected to the inner shell 2. The other end of the lateral support wire 4 is inserted into the outer side of the inner shell 2. The S-shaped structure gives the lateral support wire 4 good elasticity. The top suspension wire 5 is W-shaped. One end of the top suspension wire 5 is inserted into the bottom of the top shell 301 and fixedly connected to the top shell 301. The other end of the top suspension wire 5 is inserted into the top of the inner shell 2. The W-shaped design enhances the elasticity of the longitudinal support. The top suspension wire 5 and the side support wire 4 are elastic when supporting the inner shell 2. The top suspension wire 5 and the side support wire 4 are small and distributed around the inner shell 2, which takes up little space. The elastic support enhances and replaces the elastic function of the traditional thick cushioning material, thereby reducing the thickness of the ring of cushioning foam 9 that is fixedly bonded to the outside of the inner shell 2.

[0019] The buffer assembly 3 includes a top shell 301, an elastic sheet 302, and a connecting rubber ring 303. The elastic sheet 302 is inserted into the inside of the top shell 301 and is slidably connected to the inside of the top shell 301. The connecting rubber ring 303 is fixedly connected to the bottom of the elastic sheet 302, and the other end of the connecting rubber ring 303 is connected to the top of the inner shell 2. Both the elastic sheet 302 and the connecting rubber ring 303 are made of rubber. The elastic properties of the rubber material itself and the support wire form a synergistic buffer. Therefore, when subjected to external impact, when the impact is small, the inner shell 2 swings inside the outer shell 1 and does not directly contact the outer shell 1. The energy is absorbed by the elasticity of the support wire and the deformation of the rubber assembly, reducing the impact force on the inner shell 2.

[0020] A ball bearing 8 is rotatably connected to the bottom of the inner shell 2. A ring of cushioning foam 9 is fixedly bonded to the outer side of the inner shell 2. The ball bearing 8 does not contact the inner bottom surface of the outer shell 1 and has a gap. The swing amplitude of the bottom of the inner shell 2 is the largest. The cushioning foam 9 contacts the inner wall of the outer shell 1 for cushioning. A groove is opened at the bottom of the inner shell 2. A mounting seat 10 is bonded to the bottom of the inner shell 2 through a cushioning pad 11. The mounting seat 10 is located in the groove. The ball bearing 8 is installed at the bottom of the mounting seat 10. The mounting seat 10 is used to install the ball bearing 8. The cushioning pad 11 provides cushioning when the ball bearing 8 contacts the bottom surface of the inner shell 2. The groove design effectively avoids the increased space occupation caused by the protrusion of the mounting seat 10. When the impact force exceeds the elasticity of the support wire... Within the force range, under most impacts, the inner shell 2 tilts downwards and moves towards the outer shell 1. When the impact is large, the ball bearing 8 on one side of the bottom of the inner shell 2 contacts the bottom of the inner shell 2 first, causing the inner shell 2 to move along the bottom surface of the outer shell 1, thereby reducing the impact force of the inner shell 2 in a single impact. Rolling friction replaces sliding friction, and at the same time, the vertical impact force is converted into a horizontal displacement force. When the inner shell 2 moves, the inner shell 2 squeezes the lateral support wire 4 on the side. Under the action of the lateral support wire 4, the inner shell 2 swings left and right. When the impact force is too large, the single impact force of the inner shell 2 is reduced, avoiding damage to the internal parts of the inner shell 2, forming a secondary buffer. A flexible sheet 6 is fixedly connected to the outer side of the elastic sheet 302. The other side of the flexible sheet 6 is fixedly connected to the inner side of the top shell 301. The flexible sheet 6 and the elastic sheet 302 seal the upper part of the top shell 301. At the same time, the top shell 301 is fixedly connected to the outer shell 1 and has no openings to prevent water from entering the outer shell 1 and the space inside the top shell 301. A cavity 7 is opened on the surface of the top shell 301 near the flexible sheet 6. The flexible sheet 6 is folded multiple times in the cavity 7 to ensure the sealing when the elastic sheet 302 slides and to prevent damage to the flexible sheet 6 due to excessive stretching. The working principle of the above embodiment is as follows: the inner shell 2 is supported by the elasticity of the top suspension wire 5 and the side support wire 4. The elastic sheet 302 made of rubber and the connecting rubber ring 303 form a buffer assembly 3, realizing a non-rigid connection between the outer shell 1 and the inner shell 2. The flexible sheet 6 and the elastic sheet 302 cooperate to seal the top shell 301 to prevent water ingress. When there is a small impact, the inner shell 2 is buffered by the elastic swing of the support wire. When there is a large impact, the ball bearing 8 guides the inner shell 2 to move laterally. At the same time, the side support wire 4 is squeezed to generate left and right swing. The impact force is dispersed by the buffer foam 9 and the buffer pad 11. When the sound-emitting waterproof unit is impacted, the support wire and the buffer assembly 3 first absorb the small energy impact to avoid direct contact with the shell. When the impact is large, the ball bearing 8 contacts the outer shell 1 to guide the displacement. The impact force is further reduced by the deformation of the support wire and the buffer material, while maintaining the waterproof sealing of the overall structure.

[0021] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0022] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to".

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sound-emitting waterproof unit shock-absorbing and buffering protective structure, characterized in that: It includes an outer shell (1), an inner shell (2) and a buffer assembly (3), the buffer assembly (3) being located on top of the outer shell (1) and used for buffering between the outer shell (1) and the inner shell (2); The buffer assembly (3) includes a top housing (301), an elastic sheet (302), and a connecting rubber ring (303). The elastic sheet (302) is inserted into the inside of the top housing (301) and is slidably connected to the inside of the top housing (301). The connecting rubber ring (303) is fixedly connected to the bottom of the elastic sheet (302), and the other end of the connecting rubber ring (303) is connected to the top of the inner housing (2). Lateral support wires (4) are provided between the outer side wall of the outer shell (1) and the inner side wall of the inner shell (2), and top suspension wires (5) are provided between the top of the inner shell (2) and the top shell (301).

2. The sound-generating waterproof unit impact-resistant buffer protection structure according to claim 1, characterized in that: The top suspension wire (5) is bent in a W shape. One end of the top suspension wire (5) is inserted into the bottom of the top housing (301) and fixedly connected to the top housing (301). The other end of the top suspension wire (5) is inserted into the top of the inner housing (2).

3. The sound-generating waterproof unit impact-resistant buffer protection structure according to claim 1, characterized in that: The lateral support wire (4) is bent in an S-shape. One end of the lateral support wire (4) is inserted into the inner side of the outer shell (1) and fixedly connected to the inner shell (2). The other end of the lateral support wire (4) is inserted into the outer side of the inner shell (2).

4. The sound-generating waterproof unit impact-resistant buffer protection structure according to claim 1, characterized in that: A flexible sheet (6) is fixedly connected to the outer side of the elastic sheet (302), and the other side of the flexible sheet (6) is fixedly connected to the inner side of the top shell (301).

5. The sound-generating waterproof unit impact-resistant buffer protection structure according to claim 4, characterized in that: The top housing (301) has a cavity (7) on the surface near the flexible sheet (6), and the flexible sheet (6) is folded multiple times in the cavity (7).

6. The sound-generating waterproof unit shock-proof buffer protection structure according to claim 1, characterized in that: The bottom of the inner shell (2) is rotatably connected with a ball bearing (8), and a ring of cushioning foam (9) is fixedly bonded to the bottom of the outer side of the inner shell (2).

7. The sound-generating waterproof unit impact-resistant buffer protection structure according to claim 6, characterized in that: The bottom of the inner shell (2) is provided with a groove, and the bottom of the inner shell (2) is attached to the mounting seat (10) by a buffer pad (11). The mounting seat (10) is located in the groove, and the ball (8) is installed at the bottom of the mounting seat (10).