Sawtooth-shaped dustproof cap for loudspeaker

Abstract

The utility model relates to the technical field of loudspeaker accessories, and discloses a zigzag dustproof cap for a loudspeaker, which comprises a cap seat, clamping sawteeth annularly distributed at equal intervals are arranged on the inner side wall of the cap seat, a positioning magnet is fixedly connected to one end of the inner wall of each clamping sawtooth, a cap is fixedly connected to the top of the cap seat, and a spiral diversion trench is formed in the top of the inner wall of the cap. According to the sawtooth-shaped dustproof cap for the loudspeaker, through mutual cooperation of the structures, the dustproof cap is effectively prevented from loosening or falling off in the using process, so that long-term cleaning of the interior of the loudspeaker is ensured, the effects of stable installation and efficient dust prevention are achieved, the acoustic performance is optimized, and the service life of the loudspeaker is prolonged. Reflection and interference of sound waves in the dustproof cap are reduced, sound wave propagation is smoother, the tone quality and the volume of the loudspeaker are remarkably improved, and the loudspeaker is more practical.

Description

Technical Field

[0001] This utility model relates to the field of loudspeaker accessories technology, specifically a serrated dust cap for loudspeakers. Background Technology

[0002] Speaker dust caps, as a crucial component of a speaker system, primarily protect the delicate internal components from external environmental disturbances. During speaker operation, dust, moisture, and other microparticles can easily enter the speaker through its openings, damaging critical components such as the voice coil and diaphragm, thus affecting sound quality and lifespan. Therefore, the design of the dust cap is paramount. It not only needs excellent dustproof performance to ensure the cleanliness of the speaker's interior but also needs to optimize acoustic performance to avoid adverse effects on sound propagation. It is precisely for these needs that speaker dust caps have become an indispensable part of speaker design. However, traditional speaker dust cap technology has several drawbacks. Traditional dust caps are relatively inadequate in considering acoustic performance; sound waves are easily reflected and interfered with inside the dust cap, affecting the speaker's sound quality. Furthermore, traditional dust caps are also lacking in heat dissipation, failing to effectively dissipate the heat generated during speaker operation. Prolonged use can easily lead to overheating, affecting the speaker's stability and lifespan. Therefore, these shortcomings of traditional technology not only affect the dustproof effect and acoustic performance of the loudspeaker, but also have an adverse impact on the overall stability and service life of the loudspeaker.

[0003] For example, Chinese patent CN214708055U proposes a speaker dust cap. This patent uses a limiting ring to cooperate with the cone to achieve the connection between the dust cap and the cone, avoiding the traditional glue fixing method, making the connection between the dust cap and the cone more convenient and with better stability after connection. However, the above patent only solves the problem of the connection method between the dust cap and the cone, and does not comprehensively optimize the acoustic performance and heat dissipation performance of the dust cap. Therefore, we propose a serrated dust cap for speakers. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a serrated dust cap for loudspeakers, which solves the aforementioned problems.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: a serrated dust cap for a loudspeaker, comprising a cap base, wherein the inner sidewall of the cap base is provided with snap-fit ​​serrations distributed in an annular pattern, one end of the inner wall of the snap-fit ​​serrations is fixedly connected to a positioning magnet, and a cap is fixedly connected to the top of the cap base, wherein a spiral guide groove is provided on the top of the inner wall of the cap.

[0006] Preferably, the spiral guide groove is composed of twenty-five arc-shaped guide grooves evenly distributed around the center, and four snap-fit ​​saw teeth and positioning magnets are provided.

[0007] Preferably, the cap consists of a substrate layer, a damping layer, a waterproof and breathable layer, and a heat radiation layer from the inside out.

[0008] Preferably, the substrate layer is made of nano-ceramic material and the thickness of the substrate layer is 0.3-0.5 mm.

[0009] Preferably, the damping layer is made of microporous silicone and the thickness of the damping layer is 0.1-0.2 mm.

[0010] Preferably, the waterproof and breathable layer is made of expanded polytetrafluoroethylene membrane, and the thickness of the waterproof and breathable layer is 20-30 μm.

[0011] Preferably, the thermal radiation layer is made of graphene coating and has a thickness of 50 μm.

[0012] Compared with the prior art, the present invention provides a serrated dust cap for a loudspeaker, which has the following advantages:

[0013] 1. This serrated dust cap for loudspeakers features a serrated snap-fit ​​design that tightly engages with the loudspeaker housing, ensuring a secure installation. Compared to the retaining ring design in CN214708055U, the serrated snap-fit ​​provides more contact points and stronger gripping force, effectively preventing the dust cap from loosening or falling off during use, thus significantly improving dust protection. Simultaneously, a positioning magnet is fixedly connected to one end of the inner wall of the snap-fit, achieving quick and accurate positioning through magnetic attraction, further enhancing connection stability. This design offers superior dust protection and stability compared to traditional technologies that rely solely on retaining rings or snap-fit ​​connections, ensuring long-term cleanliness of the loudspeaker's interior and reliable use of the dust cap.

[0014] 2. The serrated dust cap for the speaker features a spiral guide groove on the top inner wall, consisting of twenty-five arc-shaped guide grooves evenly distributed around the center. This design effectively guides the sound waves emitted by the speaker, reducing reflection and interference within the dust cap, allowing the sound waves to propagate more smoothly into the external space. Compared to the design in CN214708055U, which lacks specific acoustic performance optimization, the spiral guide groove design of this device significantly improves the speaker's sound quality and volume, resulting in clearer and more natural sound. This optimization of acoustic performance represents a substantial improvement over traditional technologies, meeting users' demands for high-quality sound.

[0015] 3. The serrated dust cap for the speaker features a multi-layered design, including a heat-radiating layer made of graphene coating, which offers excellent thermal conductivity. During speaker operation, the graphene coating effectively dissipates generated heat, ensuring stable speaker operation. Compared to the design in CN214708055U, which lacks mention of heat dissipation performance, this device's heat-radiating layer design effectively solves the speaker overheating problem, extending the speaker's lifespan. This enhanced heat dissipation performance offers significant advantages over traditional technologies, especially under prolonged use or high-power output conditions, where the superiority of this device becomes even more apparent. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0018] Figure 3 This is a cross-sectional view of the present invention;

[0019] Figure 4 This is a cross-sectional schematic diagram of the cap of this utility model.

[0020] In the diagram: 1. Cap base; 2. Snap-fit ​​serrations; 3. Positioning magnet; 4. Cap; 5. Spiral guide groove; 6. Substrate layer; 7. Damping layer; 8. Waterproof and breathable layer; 9. Heat radiation layer. Detailed Implementation

[0021] 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.

[0022] Please see Figure 1-4 A serrated dust cap for a loudspeaker includes a cap base 1. The inner wall of the cap base 1 is provided with snap-fit ​​serrations 2 arranged in a ring and evenly spaced. A positioning magnet 3 is fixedly connected to one end of the inner wall of the snap-fit ​​serrations 2. A cap 4 is fixedly connected to the top of the cap base 1. A spiral guide groove 5 is opened on the top of the inner wall of the cap 4, so that the dust cap can be stably installed on the loudspeaker. The cooperation between the snap-fit ​​serrations 2 and the positioning magnet 3 enhances the stability and accuracy of the connection, while the cap 4 and the spiral guide groove 5 inside provide a basis for optimizing acoustic performance.

[0023] Furthermore, the spiral guide groove 5 consists of twenty-five arc-shaped guide grooves evenly distributed around the center, and four snap-fit ​​saw teeth 2 and positioning magnets 3 are provided. The design of the spiral guide groove 5 helps to guide sound waves, reduce reflection and interference, and improve sound quality; the setting of four snap-fit ​​saw teeth 2 and positioning magnets 3 ensures that the dust cap is evenly stressed and stably installed on the speaker.

[0024] Furthermore, the cap 4 is composed of a base material layer 6, a damping layer 7, a waterproof and breathable layer 8, and a heat radiation layer 9 from the inside out. This multi-layer structure design enables the cap 4 to have multiple functions. The base material layer 6 provides support and strength, the damping layer 7 absorbs and dissipates sound wave energy, the waterproof and breathable layer 8 prevents moisture intrusion while maintaining breathability, and the heat radiation layer 9 helps dissipate heat and ensures the stable operation of the speaker.

[0025] Furthermore, the substrate layer 6 is made of nano-ceramic material and has a thickness of 0.3-0.5mm. The nano-ceramic material gives the substrate layer 6 excellent strength and wear resistance, while its thickness design also ensures sufficient structural strength and lightweight.

[0026] Furthermore, the damping layer 7 is made of microporous silicone, and its thickness is 0.1-0.2mm. The microporous silicone damping layer 7 can effectively absorb and dissipate sound wave energy, reduce noise and echo, and its thickness design ensures good damping effect without excessively increasing weight.

[0027] Furthermore, the waterproof and breathable layer 8 is made of expanded polytetrafluoroethylene (ePTFE) membrane, with a thickness of 20-30μm. The ePTFE membrane material of the waterproof and breathable layer 8 can prevent moisture from entering the speaker while ensuring the speaker's breathability, avoiding the impact on sound quality due to excessive sealing. Its thickness design ensures waterproof and breathable performance while maintaining a thin profile.

[0028] Furthermore, the heat radiation layer 9 is made of graphene coating and has a thickness of 50μm. The graphene coating heat radiation layer 9 has good thermal conductivity and can dissipate the heat generated by the speaker in a timely manner, ensuring the stable operation of the speaker. Its thickness design ensures sufficient heat radiation effect while maintaining the uniformity and stability of the coating.

[0029] Instructions for use

[0030] Structural Description: 1. Hat Base 1: Provides the basic support structure for the dust cap, located at the bottom of the dust cap, with snap-fit ​​serrations 2 on the inner wall.

[0031] 2. Snap-fit ​​serrations 2: used to tightly engage with the speaker housing to achieve a stable installation of the dust cap, and are distributed in a ring at equal intervals on the inner side wall of the cap holder 1.

[0032] 3. Positioning magnet 3: Enhances the connection stability between the dust cap and the speaker, achieves fast and accurate positioning through magnetic adsorption, and is fixedly connected to one end of the inner wall of the snap-fit ​​serration 2.

[0033] 4. Cap 4: Covers the top of the cap 1, providing dust protection and protection, while the spiral guide groove 5 on the top of its inner wall helps to optimize acoustic performance.

[0034] 5. Spiral guide channel 5: Composed of twenty-five arc-shaped guide channels evenly distributed around the center, located at the top of the inner wall of the cap 4, used to guide sound waves and reduce reflection and interference.

[0035] 6. Substrate layer 6: As the supporting structure of cap 4, it provides strength and wear resistance. It is the first layer of cap 4 from the inside out and is made of nano-ceramic.

[0036] 7. Damping layer 7: Absorbs and dissipates sound wave energy, reduces noise and echo. It is located outside the substrate layer 6 and is the second layer of the cap 4. The material is microporous silicone.

[0037] 8. Waterproof and breathable layer 8: Prevents moisture from entering the speaker while maintaining breathability. It is located outside the damping layer 7 and is the third layer of the cap 4. The material is expanded polytetrafluoroethylene film.

[0038] 9. Thermal radiation layer 9: It has good thermal conductivity, dissipates the heat generated by the speaker in time, and ensures the stable operation of the speaker. It is located outside the waterproof and breathable layer 8 and is the outermost layer of the cap 4. The material is graphene coating.

[0039] Working Principle: First, the stable installation of the dust cap is achieved through the linkage design of the cap base 1 and the snap-fit ​​serrations 2. The snap-fit ​​serrations 2, arranged in a ring and equidistantly on the inner wall of the cap base 1, can tightly engage with the corresponding structure of the speaker housing, ensuring that the dust cap will not easily fall off due to external force. At the same time, the positioning magnet 3 fixedly connected to one end of the inner wall of the snap-fit ​​serrations 2 further enhances the connection stability between the dust cap and the speaker. Through magnetic adsorption, the dust cap can be quickly and accurately positioned during installation, improving installation efficiency and accuracy. Second, the linkage between the cap 4 and the spiral guide groove 5 optimizes the acoustic performance. The cap 4 is fixedly connected to the top of the cap base 1, and the spiral guide groove 5 opened on the top of its inner wall consists of twenty-five arc-shaped guide grooves equidistantly distributed around the center. This design effectively guides the sound waves emitted by the speaker, reducing reflections and interference inside the dust cap, allowing the sound waves to propagate more smoothly into the external space, thus improving the speaker's sound quality and volume. Furthermore, the multi-layered structure of the cap 4 also plays a crucial role. The substrate layer 6, serving as the cap's supporting structure, is made of nano-ceramic material, possessing excellent strength and wear resistance; the damping layer 7 uses microporous silicone material, effectively absorbing and dissipating the energy of sound waves during propagation, reducing noise and echo; the waterproof and breathable layer 8 uses expanded polytetrafluoroethylene (ePTFE) membrane material, preventing moisture from entering the speaker while ensuring its breathability, avoiding any impact on sound quality due to excessive sealing; the heat radiation layer 9 uses a graphene coating, possessing excellent thermal conductivity, effectively dissipating the heat generated by the speaker, ensuring stable speaker operation.

[0040] 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 sawtooth dust cap for a loudspeaker comprising a cap base (1) characterised in that: The inner side wall of the cap seat (1) is provided with annular equidistant clamping serrations (2), the inner wall of the clamping serration (2) is fixedly connected with a positioning magnet (3) at one end, the top of the cap seat (1) is fixedly connected with a cap (4), and the inner wall of the cap (4) is provided with a spiral flow guide groove (5) at the top.

2. A sawtooth dust cap for a loudspeaker according to claim 1, wherein: The spiral flow guide groove (5) is composed of twenty-five arc-shaped flow guide grooves equidistantly distributed around the center, and the clamping serration (2) and the positioning magnet (3) are provided with four.

3. A sawtooth dust cap for a loudspeaker according to claim 1, wherein: The cap (4) is composed of a base material layer (6), a damping layer (7), a waterproof and breathable layer (8) and a heat radiation layer (9) from inside to outside.

4. A sawtooth dust cap for a loudspeaker according to claim 3, wherein: The base material layer (6) is made of nano ceramic, and the thickness of the base material layer (6) is 0.3-0.5mm.

5. A sawtooth dust cap for a loudspeaker according to claim 3, wherein: The damping layer (7) is made of microporous silica gel, and the thickness of the damping layer (7) is 0.1-0.2mm.

6. A sawtooth dust cap for a loudspeaker according to claim 3, wherein: The waterproof and breathable layer (8) is made of expanded polytetrafluoroethylene film, and the thickness of the waterproof and breathable layer (8) is 20-30μm.

7. A sawtooth dust cap for a loudspeaker according to claim 3, wherein: The heat radiation layer (9) is made of graphene coating, and the thickness of the heat radiation layer (9) is 50μm.

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