Volute type automobile horn with waterproof function

By introducing waterproof components into car horns, the problem of horns being easily damaged in harsh environments has been solved, achieving waterproofing, dustproofing, and optimized sound propagation, extending service life, and improving driving safety.

CN224178293UActive Publication Date: 2026-04-28ZHEJIANG APLEX AUTO PARTS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG APLEX AUTO PARTS CO LTD
Filing Date
2025-05-27
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing car horns are susceptible to moisture intrusion in harsh environments, which can damage their internal structure and circuitry, affecting driving safety.

Method used

Waterproof components are used, including a waterproof diaphragm, water-blocking louvers, and sealing rings. The snap-fit ​​connection ensures a tight fit, preventing moisture and dust from entering the speaker and optimizing sound propagation.

Benefits of technology

It effectively prevents moisture and dust from entering, protects internal components, extends horn life, optimizes sound propagation, and improves driving safety and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a volute type automobile horn with a waterproof function, relates to the technical field of automobile horns, and comprises a horn body, a volute type loudspeaking cylinder, an edge bump and a waterproof assembly, the volute type loudspeaking cylinder is arranged on the horn body, the edge bump is arranged on the volute type loudspeaking cylinder, and the waterproof assembly is arranged on the volute type loudspeaking cylinder. The waterproof assembly comprises a rear cover body, a waterproof diaphragm, a connecting shell, a front cover body and a water retaining shutter, the rear cover body is movably arranged on the edge protruding block, the waterproof diaphragm is arranged on the rear cover body, the connecting shell is arranged at the end, away from the edge protruding block, of the rear cover body, the front cover body is arranged at the end, away from the rear cover body, of the connecting shell, and the water retaining shutter is arranged on the front cover body. According to the utility model, through the waterproof assembly, the loudspeaker can effectively prevent moisture from entering in a rainy day or a humid environment, short circuit or tone quality reduction caused by moisture is avoided, the service life of the loudspeaker is prolonged, and faults caused by environmental factors are reduced.
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Description

Technical Field

[0001] This application relates to the field of automotive horn technology, and more particularly to a water-resistant, volute-type automotive horn. Background Technology

[0002] Car horns face various harsh environments during use, such as rain, dust, and mud. Especially when driving in the rain, horns are easily exposed to large amounts of water, which can lead to short circuits in the internal circuitry, decreased sound quality, or even damage. Furthermore, horns are usually installed close to the wheels, making them susceptible to corrosion from splashed water and mud. Waterproof, spiral-shell car horns can maintain normal operation in harsh environments, extending their lifespan and improving the safety and reliability of the vehicle.

[0003] Currently, Chinese utility model patent application CN 217037387U, published on July 22, 2022, provides an automotive horn assembly, including an upper housing and a lower housing. The upper and lower housings are threaded together. A horn opening is formed on one side of the lower housing. A horn body is disposed within the upper and lower housings. A retaining ring is provided on the lower outer wall of the horn body. The retaining ring is fixed to the horn body by fasteners. External threads are formed on the outer wall of the retaining ring. The retaining ring is threaded to the inner wall of the upper housing. A mounting bracket is provided on the upper housing. One end of the mounting bracket is fixed to the upper housing by fasteners. The other end of the mounting bracket has a mounting plate with mounting holes. The mounting holes are fixed to mounting pins on the vehicle frame. This solution uses threaded connections between the upper and lower housings, as well as between the upper housing and the retaining ring, making assembly very convenient. The reduced fasteners and other fixing structures simplify the structure, reduce the weight of the entire horn, and are more conducive to achieving overall vehicle lightweighting.

[0004] In related technologies, car horn assemblies are often installed close to the wheels, making them susceptible to corrosion from water splashes and mud. Since car horns are not waterproof, their internal structure and circuitry are easily damaged by water intrusion. Once water gets into the horn, the sound may become quieter, hoarse, or even malfunction, seriously affecting the horn's warning function and posing a threat to driving safety.

[0005] Therefore, it is necessary to provide a waterproof, spiral-shell type car horn to solve the above problems. Utility Model Content

[0006] This application provides a water-resistant volute-type car horn to address the technical problem in related technologies where car horns lack waterproofing, and their internal structure and circuitry are easily damaged by moisture intrusion, posing a threat to driving safety.

[0007] This application provides a waterproof volute-type car horn, including a horn body, a volute-shaped speaker tube, an edge protrusion, and a waterproof component. The volute-shaped speaker tube is disposed on the horn body, and the edge protrusion is disposed on the volute-shaped speaker tube. The waterproof component includes a rear cover, a waterproof diaphragm, a connecting shell, a front cover, and a water-blocking louver. The rear cover is movably disposed on the edge protrusion, the waterproof diaphragm is disposed on the rear cover, the connecting shell is disposed on the end of the rear cover away from the edge protrusion, the front cover is disposed on the end of the connecting shell away from the rear cover, and the water-blocking louver is disposed on the front cover.

[0008] The technical solutions described above in this application embodiment have at least the following technical effects: When the user installs waterproof components on the car horn, the edge protrusions are used to fix the rear cover, ensuring a tight connection between the waterproof components and the horn body. A waterproof membrane is provided on the rear cover to prevent moisture and dust from entering the horn and to protect key components such as the electromagnetic coil. The front cover prevents external objects from directly contacting the waterproof membrane and avoiding damage. The inclined blade design blocks rainwater from directly entering the horn and reduces the erosion of internal components by moisture.

[0009] The waterproof volute-type car horn provided in this application embodiment can effectively prevent water from entering the horn in rainy or humid environments through the dual protection of a waterproof diaphragm and water-blocking louvers. This avoids short circuits or sound quality degradation caused by water, and the waterproof design extends the horn's service life and reduces malfunctions caused by environmental factors.

[0010] In some embodiments, a connecting hole is provided on the edge protrusion, and a connecting strip is provided on one end of the rear cover near the edge protrusion. A snap-fit ​​block is provided on the connecting strip, and the rear cover is movably mounted on the connecting hole through the connecting strip and the snap-fit ​​block.

[0011] In some embodiments, the connecting shell is provided with a plurality of sheet metal parts.

[0012] In some embodiments, a dustproof component is provided on the sheet metal part. The dustproof component includes a connecting cover, a dust cover, a positive magnetic block, a negative magnetic block, and a connecting block. The sheet metal part has multiple reserved holes. The connecting cover has multiple connecting holes corresponding to the reserved holes. The dust cover is disposed on the connecting block. The negative magnetic block is disposed in the reserved holes. The positive magnetic block is disposed on the end of the connecting block away from the connecting cover. The connecting cover is movably disposed in the reserved holes through the connecting block and the positive magnetic block.

[0013] In some embodiments, the diameter of the connecting block is equal to the diameter of the reserved hole.

[0014] In some embodiments, a sealing ring is provided on the rear cover.

[0015] In some embodiments, the width of the connecting hole is greater than the width of the connecting strip plus the snap-fit ​​block. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of a waterproof volute-type car horn provided in an embodiment of this application;

[0017] Figure 2 An exploded structural diagram of a waterproof volute-type car horn provided in an embodiment of this application;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a three-dimensional structural diagram of the back cover provided in an embodiment of this application.

[0020] The following are the labeling elements in the figure:

[0021] 1. Speaker body; 11. Volute-type speaker tube; 12. Edge protrusion; 13. Connecting hole; 2. Waterproof component; 21. Rear cover; 22. Connecting strip; 23. Snap-fit ​​block; 24. Waterproof diaphragm; 25. Sheet metal part; 26. Connecting shell; 27. Front cover; 28. Waterproof louver; 3. Dustproof component; 31. Reserved hole; 32. Connecting cover; 33. Dust cover; 34. Positive magnet; 35. Negative magnet; 36. Connecting block; 4. Sealing ring. Detailed Implementation

[0022] Based on this, in order to improve the technical problem that car horns in related technologies do not have waterproof function, and their internal structure and circuits are easily damaged by water intrusion, posing a threat to driving safety, the embodiments of this application provide the following solutions.

[0023] Please refer to the following: Figures 1 to 4 This application provides a waterproof volute-type car horn, which includes a horn body 1, a volute-type speaker tube 11, an edge protrusion 12, and a waterproof component 2. The volute-type speaker tube 11 is disposed on the horn body 1, the edge protrusion 12 is disposed on the volute-type speaker tube 11, and the waterproof component 2 is disposed on the edge protrusion 12.

[0024] In some embodiments, please refer to the following: Figure 2 and Figure 4The waterproof component 2 includes a rear cover 21, a waterproof diaphragm 24, a connecting shell 26, a front cover 27, and a water-blocking louver 28. The rear cover 21 is movably mounted on the edge protrusion 12. The waterproof diaphragm 24 is mounted on the rear cover 21. The connecting shell 26 is mounted on the end of the rear cover 21 away from the edge protrusion 12. The front cover 27 is mounted on the end of the connecting shell 26 away from the rear cover 21. The water-blocking louver 28 is mounted on the front cover 27. A connecting hole 13 is provided on the edge protrusion 12. A connecting strip 22 is provided on the end of the rear cover 21 near the edge protrusion 12. A snap-fit ​​block 23 is provided on the connecting strip 22. The rear cover 21 is movably mounted on the connecting hole 13 through the connecting strip 22 and the snap-fit ​​block 23. The width of the connecting hole 13 is greater than the width of the connecting strip 22 plus the width of the snap-fit ​​block 23. A sealing ring 4 is provided on the rear cover 21. Multiple sheet metal parts 25 are provided on the connecting shell 26.

[0025] With this configuration, when installing waterproof components on a car horn, the user can secure the connecting strip 22 and the snap-fit ​​block 23 on the rear cover 21 to the connecting hole 13 on the edge protrusion 12, ensuring a tight connection between the waterproof component 2 and the horn body 1. A waterproof diaphragm 24 is provided on the rear cover 21 to prevent moisture and dust from entering the horn. At the same time, a sealing ring is provided on the rear cover 21 to reduce the gap between the waterproof diaphragm 24 and the rear cover 21, preventing moisture and dust from entering the horn and protecting critical components such as the electromagnetic coil. The front cover 27 prevents external objects from directly contacting the waterproof diaphragm 24 and avoiding damage. The inclined blade design blocks rainwater from directly entering the horn, reducing the corrosion of internal components by water. The design of the sheet metal part 25, by adding a bypass cavity, makes it difficult for water to directly enter the horn. Thus, the waterproof diaphragm 24 allows sound to pass through while blocking moisture from entering the speaker. This material typically has a microporous structure, effectively preventing moisture penetration. The sealing ring further reduces the gap between the back cover 21 and the waterproof diaphragm 24, ensuring that moisture and dust cannot enter the speaker. The water-blocking louvers 28, with their angled blade design, prevent rainwater from directly entering the speaker, reducing moisture erosion of internal components. The sheet metal part 25, by adding a bypass cavity, makes it difficult for water to directly enter the speaker, further enhancing the waterproof effect. Protected by the waterproof diaphragm 24, the sealing ring, and the water-blocking louvers 28, key components such as the electromagnetic coil are protected from moisture and dust erosion, thereby extending their service life. The angled blade design not only provides waterproofing but also optimizes the direction of sound propagation, making the sound... The sound is propagated more concentratedly, improving the efficiency of sound propagation. By adding a bypass cavity, it is not only waterproof but also reduces interference during sound propagation, further optimizing the sound effect. By snapping the connecting strip 22 and snap-fit ​​block 23 on the rear cover 21 into the connecting hole 13 on the edge protrusion 12, a tight connection between the waterproof component 2 and the speaker body 1 is ensured, enhancing the stability of the overall structure. This design, through multi-layer waterproof and dustproof protection, as well as optimized sound propagation and structural stability, significantly improves the performance and service life of the car speaker. It can not only effectively prevent moisture and dust from entering the speaker and protect key components, but also optimize the sound propagation effect, while facilitating maintenance and cleaning. This design is suitable for various complex usage environments and is a very practical and efficient solution.

[0026] In some embodiments, please refer to the following: Figures 2 to 3The sheet metal part 25 is provided with a dustproof component 3, which includes a connecting cover 32, a dust cover 33, a positive magnetic block 34, a negative magnetic block 35, and a connecting block 36. The sheet metal part 25 has multiple reserved holes 31. The connecting cover 32 is provided with multiple connecting holes 13 corresponding to the reserved holes 31. The dust cover 33 is provided on the connecting block 36. The negative magnetic block 35 is provided in the reserved hole 31. The positive magnetic block 34 is provided on the end of the connecting block 36 away from the connecting cover 32. The connecting cover 32 is movably provided in the reserved hole 31 through the connecting block 36 and the positive magnetic block 34. The diameter of the connecting block 36 is equal to the diameter of the reserved hole 31.

[0027] With this configuration, the connecting cover 32 and the dust cover 33 are movably mounted on the sheet metal part 25 via the connecting block 36, the positive magnetic block 34, the negative magnetic block 35, and the reserved hole 31, which facilitates disassembly and cleaning later. At the same time, the diameter of the connecting block 36 is equal to the diameter of the reserved hole 31, which prevents the connecting cover 32 from slipping off the sheet metal part 25 due to the difference in hole diameter. Thus, the cooperation between the connecting block 36 and the reserved hole 31, along with the auxiliary fixing of the positive magnet 34 and the negative magnet 35, allows the connecting cover 32 and the dust cover 33 to be quickly installed and removed. This design greatly improves the convenience of disassembly and cleaning, allowing users to easily clean and maintain the speaker assembly. Due to the simple disassembly and installation process, users can complete cleaning and some maintenance work themselves, reducing reliance on professional repair personnel and thus lowering maintenance costs. The cooperation between the positive magnet 34 and the negative magnet 35 further enhances the stability of the connecting cover 32 and the dust cover 33, ensuring that the connecting cover 32 and the dust cover 33 will not loosen during vehicle operation, even when encountering bumpy road conditions. The precise connection and stable fixing method reduce wear caused by loosening or slippage, thereby extending the service life of the speaker assembly. The dust cover 33 can effectively block dust and debris from entering the speaker, reducing the impact of dust on speaker performance. Combined with the double protection of the waterproof diaphragm 24 and the dust cover 33, the speaker can better prevent moisture from entering in rainy or humid environments, avoiding short circuits or sound quality degradation caused by moisture.

[0028] The implementation principle of the waterproof volute-type car horn in this application embodiment is as follows: When the user installs the waterproof component on the car horn, the connecting strip 22 and the snap-fit ​​block 23 on the rear cover 21 are snapped into the connecting hole 13 on the edge protrusion 12 to ensure a tight connection between the waterproof component 2 and the horn body 1. A waterproof diaphragm 24 is provided on the rear cover 21 to prevent moisture and dust from entering the horn. At the same time, a sealing ring is provided on the rear cover 21 to reduce the gap between the waterproof diaphragm 24 and the rear cover 21, which would allow moisture and dust to enter the horn, thus protecting key components such as the electromagnetic coil. The front cover 27... The design prevents external objects from directly contacting the waterproof membrane 24 and avoiding damage. The inclined blade design blocks rainwater from directly entering the speaker, reducing the corrosion of internal components by water. The sheet metal part 25 is designed with an added bypass cavity to make it difficult for water to directly enter the speaker. The connecting cover 32 and dust cover 33 are movably mounted on the sheet metal part 25 by means of connecting block 36, positive magnet 34, negative magnet 35 and reserved hole 31, which facilitates later disassembly and cleaning. At the same time, the diameter of the connecting block 36 is equal to the diameter of the reserved hole 31 to prevent the connecting cover 32 from slipping off the sheet metal part 25 due to the difference in hole diameter.

[0029] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A waterproof, spiral-shell type car horn, characterized in that: The device includes a speaker body (1), a volute-shaped speaker tube (11), an edge protrusion (12), and a waterproof component (2). The volute-shaped speaker tube (11) is mounted on the speaker body (1), and the edge protrusion (12) is mounted on the volute-shaped speaker tube (11). The waterproof component (2) includes a rear cover (21), a waterproof diaphragm (24), a connecting shell (26), a front cover (27), and a water-blocking louver (28). The rear cover (21) is movably mounted on the edge protrusion (12), the waterproof diaphragm (24) is mounted on the rear cover (21), the connecting shell (26) is mounted on the end of the rear cover (21) away from the edge protrusion (12), the front cover (27) is mounted on the end of the connecting shell (26) away from the rear cover (21), and the water-blocking louver (28) is mounted on the front cover (27).

2. The waterproof volute-type car horn according to claim 1, characterized in that: The edge protrusion (12) is provided with a connecting hole (13). The rear cover (21) is provided with a connecting strip (22) at one end near the edge protrusion (12). The connecting strip (22) is provided with a snap-fit ​​block (23). The rear cover (21) is movably mounted on the connecting hole (13) through the connecting strip (22) and the snap-fit ​​block (23).

3. The waterproof volute-type car horn according to claim 2, characterized in that: The connecting shell (26) is provided with a plurality of sheet metal parts (25).

4. The waterproof volute-type car horn according to claim 3, characterized in that: The sheet metal part (25) is provided with a dustproof component (3). The dustproof component (3) includes a connecting cover (32), a dust cover (33), a positive magnetic block (34), a negative magnetic block (35), and a connecting block (36). The sheet metal part (25) is provided with a plurality of reserved holes (31). The connecting cover (32) is provided with a plurality of connecting holes (13) corresponding to the reserved holes (31). The dust cover (33) is provided on the connecting block (36). The negative magnetic block (35) is provided in the reserved hole (31). The positive magnetic block (34) is provided on the end of the connecting block (36) away from the connecting cover (32). The connecting cover (32) is movably disposed in the reserved hole (31) through the connecting block (36) and the positive magnetic block (34).

5. The waterproof volute-type car horn according to claim 4, characterized in that: The diameter of the connecting block (36) is equal to the diameter of the reserved hole (31).

6. The waterproof volute-type car horn according to claim 5, characterized in that: A sealing ring (4) is provided on the rear cover (21).

7. The waterproof volute-type car horn according to claim 6, characterized in that: The width of the connecting hole (13) is greater than the width of the connecting strip (22) plus the snap-fit ​​block (23).

Citation Information

Patent Citations

  • Automobile horn assembly

    CN217037387U