A headset with a hot melt mesh cloth

Abstract

The application relates to a hot-melt mesh cloth for a headphone, belonging to the technical field of hot-melt mesh cloths, which comprises, from inside to outside, a base layer, a sound-uniform layer, a connecting layer and a hot-melt cloth layer; the sound-uniform layer comprises glass fibers and vibration fibers; the glass fibers and the vibration fibers are alternately arranged in pairs; rectangular channels are formed between the glass fibers and the vibration fibers; elastic fibers are arranged at the corners of the rectangular channels; the elastic fibers have a spiral structure; one end of the spiral elastic fibers is connected with the inner wall of the rectangular channels; and the other end of the elastic fibers is gathered on a vibration factor at the center position of the rectangular channels. The hot-melt mesh cloth for the headphone can effectively make the sound more evenly distributed in the headphone.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of hot-melt mesh cloth, in particular to hot-melt mesh cloth for headsets. BACKGROUND

[0002] At present, the hot-melt mesh cloth is a mesh cloth made by hot-melt technology; it is composed of fibers and molten adhesive, and the fibers and the adhesive are fused and combined together to form a mesh structure by high-temperature heating; and the hot-melt mesh cloth is generally widely applied in headsets.

[0003] However, the existing hot-melt mesh cloth for headsets cannot make the sound more evenly distributed in the headset, causing the loss of sound quality. SUMMARY

[0004] The application provides hot-melt mesh cloth for headsets, which can effectively make the sound more evenly distributed in the headset.

[0005] The application provides hot-melt mesh cloth for headsets, which adopts the following technical scheme:

[0006] The hot-melt mesh cloth for headsets comprises, from inside to outside, a base layer, a sound-uniform layer, a connecting layer and a hot-melt cloth layer; the sound-uniform layer comprises glass fibers and vibration fibers; the glass fibers and the vibration fibers are alternately arranged two by two; a rectangular channel is formed between the glass fibers and the vibration fibers; an elastic fiber is arranged at the corner of the rectangular channel; the elastic fiber has a spiral structure; one end of the spiral elastic fiber is connected to the inner wall of the rectangular channel; and the other end of the elastic fiber is gathered on a shock factor at the center position of the rectangular channel.

[0007] By adopting the above technical scheme, the rectangular channel is arranged in the sound-uniform layer, and the elastic fiber with a spiral structure is arranged at the corner position of the rectangular channel; the rectangular channel and the elastic fiber with a spiral structure make the sound waves undergo multiple reflection, refraction and scattering, so that the propagation direction of the sound waves in space changes; this helps to break the straight propagation path of the sound waves, increases the interaction of the sound waves with various surfaces, and thus makes the sound more evenly distributed in the space.

[0008] Preferably, the shock factor has a spherical structure, and the shock factor is used for adjusting the expansion volume of the shock factor according to the sound volume.

[0009] By adopting the above technical scheme, the volume change of the shock factor can adjust the dynamic range of the sound according to the size of the sound volume. At a lower sound volume, the shock factor can be expanded to make the sound fuller and improve the dynamic range; at a higher sound volume, the volume of the shock factor can be reduced to avoid the sound being too compressed and keep the balance of the dynamic range.

[0010] Preferably, the material of the oscillation factor is rubber.

[0011] By adopting the above technical scheme, the oscillation factor is provided with a material of rubber, so that the oscillation factor has good elasticity and durability and can withstand frequent vibration and deformation. In sound propagation, the elasticity of rubber can make it rebound when subjected to sound wave vibration, thereby maintaining the stability and long service life of the oscillation factor.

[0012] Preferably, the outer surface of the oscillation factor is provided with a plurality of sound transmission holes, and the outer end cross section of the sound transmission hole is smaller than the inner end cross section of the sound transmission hole.

[0013] By adopting the above technical scheme, the sound transmission hole can change the surface area and structure of the oscillation factor, so that the sound can be more effectively transmitted. The sound transmission hole can increase the contact area between the oscillation factor and the air, thereby increasing the energy transfer and transmission efficiency of the sound. This helps to improve the loudness and clarity of the sound.

[0014] Preferably, a fixed ball is arranged at the center position of the oscillation factor, a penetrating channel is arranged between the outer surface of the fixed ball and the oscillation factor, the penetrating channel is of a zigzag structure, and one end of the penetrating channel is connected with the sound transmission hole.

[0015] By adopting the above technical scheme, the penetrating channel of the zigzag structure is arranged between the outer surface of the fixed ball and the oscillation factor. The zigzag penetrating channel allows the oscillation factor to expand outward well, and the zigzag penetrating channel has memory, allowing the oscillation factor to contract inward well. The arrangement of the penetrating channel allows the sound to be reflected and scattered between the fixed ball and the oscillation factor, so that the energy of the sound is more dispersed. This can reduce the concentration of sound in a local area and avoid resonance and distortion. At the same time, the dispersed sound can be more evenly transmitted to the surrounding environment, improving the uniformity and naturalness of the sound.

[0016] Preferably, the connecting layer comprises a first hot melt adhesive layer and a second hot melt adhesive layer, and a conductive fiber is arranged between the first hot melt adhesive layer and the second hot melt adhesive layer.

[0017] By adopting the above technical scheme, the first hot melt adhesive layer and the second hot melt adhesive layer are hot-melted from a solid state at room temperature to a liquid state, and the conductive fiber is extruded into the first hot melt adhesive layer and the second hot melt adhesive layer in a liquid state, so as to realize stable connection between the sound uniforming layer and the hot melt cloth layer.

[0018] Preferably, the first and second hot melt adhesive layers are of the same structure, the first hot melt adhesive layer comprises a plurality of glue points, the glue points are in the shape of water droplets, the glue points are provided with smooth ends and tapered ends, and the tapered ends of the glue points are connected to the conductive fibers.

[0019] By adopting the above technical solution, the glue points are in a solid state at room temperature, and gaps are formed between the smooth ends of the glue points, which is conducive to the conduction of sound. When the smooth ends of the glue points are subjected to heat and pressure, the tapered ends of the glue points begin to melt, until the tapered ends of the glue points fuse with the conductive fibers, and an integrated structure is formed.

[0020] Preferably, the conductive fibers are polyester fibers, and the two ends of the conductive fibers are respectively connected to the tapered ends of the first and second hot melt adhesive layers.

[0021] By adopting the above technical solution, polyester fibers have high strength and can withstand large tensile and compressive forces. This makes it possible to maintain stable performance in conductive applications and prevents it from breaking or deforming, ensuring the reliability and durability of the conductive process. In addition, polyester fibers have good corrosion resistance and can resist the corrosion of acid, alkali, organic solvents and other corrosive substances. This makes polyester fibers maintain stable performance in various environments and are less likely to be damaged or degraded.

[0022] Preferably, the hot melt fabric layer is made of nylon fibers and polypropylene fibers.

[0023] By adopting the above technical solution, nylon fibers have high strength and wear resistance, which can increase the durability and service life of the hot melt fabric layer. Polypropylene fibers also have certain strength and wear resistance, which can further enhance the strength and wear resistance of the hot melt fabric layer when mixed with nylon fibers. In addition, polypropylene fibers have good hot melting performance, which can firmly combine fibers with other materials through hot melting processing. This feature makes the hot melt fabric layer after mixing nylon fibers and polypropylene fibers better adhere to the substrate or other layers, improving the overall adhesion strength and stability.

[0024] Preferably, the base layer is made of a hot melt film, and the base layer is provided with a plurality of air holes inside.

[0025] By adopting the above technical solution, the hot melt film has good adhesion performance, which can effectively bond different layers of the hot melt fabric. This strong adhesion feature makes the base layer of the hot melt fabric firmly combined with other layers, improving the overall stability and durability.

[0026] In summary, the present application has the following advantages:

[0027] 1. By setting a rectangular channel in the inside of the sound uniform layer, and setting an elastic fiber with a spiral structure at the corner position of the rectangular channel, the rectangular channel and the elastic fiber with a spiral structure will cause multiple reflection, refraction and scattering of sound waves, causing the propagation direction of sound waves in space to change; this will help to break the straight propagation path of sound waves, increase the interaction of sound waves with each surface, and thus make the sound more evenly distributed in space. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is the overall structure schematic diagram of the hot melt mesh cloth in the embodiment;

[0029] Figure 2 is the connection structure schematic diagram between the glass fiber and the vibration fiber in the embodiment;

[0030] Figure 3 is the internal section view of the oscillation factor in the embodiment;

[0031] Figure 4 is the internal structure schematic diagram of the connecting layer in the embodiment;

[0032] Figure 5 is the overall structure schematic diagram of the first hot melt adhesive layer and the second hot melt adhesive layer after hot pressing in the embodiment;

[0033] Explanation of reference signs: 1, base layer; 2, sound uniform layer; 21, glass fiber; 22, vibration fiber; 23, rectangular channel; 24, elastic fiber; 25, oscillation factor; 26, sound transmission hole; 27, fixed ball; 28, penetration channel; 3, connecting layer; 31, first hot melt adhesive layer; 32, second hot melt adhesive layer; 33, conductive fiber; 4, hot melt cloth layer; DETAILED DESCRIPTION

[0034] It is necessary to point out here that the following detailed description is only used to further illustrate the application, and cannot be understood as limiting the protection scope of the application. Those skilled in the art can make some non-essential improvements and adjustments to the application according to the above application content.

[0035] The application discloses a hot melt mesh cloth for headphones, like Figure 1 and Figure 2As shown, it comprises base layer 1, uniform layer 2, connecting layer 3 and hot melt cloth layer 4 from inside to outside in turn, uniform layer 2 comprises glass fiber 21 and vibration fiber 22, glass fiber 21 and vibration fiber 22 are staggered between each other, rectangular channel 23 is formed between glass fiber 21 and vibration fiber 22, elastic fiber 24 is arranged at the corner of rectangular channel 23, elastic fiber 24 is in spiral structure, one end of spiral elastic fiber 24 is connected with the inner wall of rectangular channel 23, the other end of elastic fiber 24 converges on oscillation factor 25 at the center position of rectangular channel 23; By arranging rectangular channel 23 inside uniform layer 2 and arranging elastic fiber 24 in spiral structure at the corner position of rectangular channel 23, rectangular channel 23 and elastic fiber 24 in spiral structure will make sound wave reflect, refract and scatter many times, resulting in the change of the propagation direction of sound wave in space; This will help to break the straight propagation path of sound wave, increase the interaction of sound wave with each surface, so that the sound is more evenly distributed in space; Elastic fiber 24 in spiral structure can absorb and dissipate part of sound energy, reduce the reflection of sound wave; This will help to reduce the reflection and echo of sound, avoid obvious reverb of sound in space, improve the intelligibility and audibility of sound; Moreover, the structure of rectangular channel 23 and elastic fiber 24 can change the frequency spectrum characteristics and sound field distribution of sound; By adjusting the size of channel and the density, length and other parameters of fiber, the effects of sound absorption, attenuation and delay can be realized, so as to adjust the tone quality, sound reverb time and sound field uniformity; In short, by arranging rectangular channel 23 and elastic fiber 24 in spiral structure inside uniform layer 2, the interaction of sound wave with surface can be increased, the reflection and echo of sound wave can be reduced, the sound characteristics can be adjusted, so as to improve the uniformity of sound distribution, reduce reverb and improve the intelligibility of sound; This has a positive effect on the optimization of acoustic environment and the performance improvement of audio system.

[0036] As Figure 1As shown, the conductive fiber 33 is a polyester fiber, and the two ends of the conductive fiber 33 are connected to the tapered ends of the first hot melt adhesive layer 31 and the second hot melt adhesive layer 32, respectively. The polyester fiber has high strength and can withstand large tensile and compressive forces. This makes it stable in conductive applications and less likely to break or deform, ensuring the reliability and durability of the conductive process. In addition, the polyester fiber has good corrosion resistance and can resist the corrosion of acid, alkali, organic solvents and other corrosive substances. This makes the polyester fiber maintain stable performance in various environments and is less likely to be damaged or degraded in quality. The hot melt cloth layer 4 is made of nylon fiber and polypropylene fiber. The nylon fiber has high strength and wear resistance, which can increase the durability and service life of the hot melt cloth layer 4. The polypropylene fiber also has certain strength and wear resistance, which can further enhance the strength and wear resistance of the hot melt cloth layer 4 when blended with nylon fiber. In addition, the polypropylene fiber has good hot melting performance and can be firmly combined with other materials through hot melting processing. This feature makes the hot melt cloth layer 4 after blending nylon fiber and polypropylene fiber better adhere to the substrate or other layers, improving the overall adhesion strength and stability. The base layer 1 is made of hot melt film, and the inside of the base layer 1 is provided with a plurality of air holes. The hot melt film has good adhesion and can effectively bond different layers of the hot melt mesh cloth. This strong adhesion feature makes the base layer 1 of the hot melt mesh cloth firmly combined with other layers, improving the overall stability and durability. The hot melt film has good impermeability and can effectively prevent the penetration of liquids, gases and other substances. As the base layer 1 of the hot melt mesh cloth, the hot melt film can form an effective barrier to prevent the penetration of water vapor, pollutants and other substances, protecting the underlying material from damage. The hot melt film has good corrosion resistance and can resist the corrosion of acid, alkali, organic solvents and other corrosive substances. This makes the base layer 1 of the hot melt mesh cloth maintain stable performance in various environments and is less likely to be damaged or degraded in quality. In addition, the hot melt film has good high temperature resistance and can maintain stable performance in high temperature environments. This makes the base layer 1 of the hot melt mesh cloth able to withstand certain heat without changing in quality, suitable for applications that require use in high temperature conditions. Moreover, the hot melt film has a certain flexibility and can adapt to various complex shapes and curves. As the base layer 1 of the hot melt mesh cloth, the hot melt film can provide a certain softness, making the entire mesh cloth more flexible and easy to install and use. In summary, the hot melt film as the base layer 1 of the hot melt mesh cloth has the advantages of strong adhesion, good impermeability, strong corrosion resistance, high temperature resistance, good flexibility and strong wear resistance. These features make the hot melt mesh cloth have wide applicability and reliability in various applications.

[0037] As Figure 2 and Figure 3As shown, the oscillation factor 25 is in a spherical structure, and the oscillation factor 25 is used to adjust the expansion volume of the oscillation factor 25 according to the volume size; the volume change of the oscillation factor 25 can adjust the dynamic range of the sound according to the size of the volume; at a lower volume, the oscillation factor 25 can be inflated to make the sound fuller and improve the dynamic range; at a higher volume, the volume of the oscillation factor 25 can be reduced to avoid the sound being too compressed and maintain the balance of the dynamic range; the material of the oscillation factor 25 is rubber; by setting the oscillation factor 25 with rubber material, the oscillation factor 25 has good elasticity and durability, and can withstand frequent vibration and deformation; in sound propagation, the elasticity of rubber can make it rebound when it is vibrated by sound waves, thereby maintaining the stability of the oscillation factor 25 and the long service life; rubber is a material with good sound absorption and sound insulation performance; when sound waves propagate onto the rubber material, part of the sound energy will be absorbed by the rubber, reducing sound reflection and echo; this helps to reduce noise levels and improve sound clarity and audibility.

[0038] As Figure 2 and Figure 3As shown, the outer surface of the oscillation factor 25 is provided with a plurality of sound transmission holes 26, the outer end cross section of the sound transmission hole 26 is smaller than the inner end cross section of the sound transmission hole 26; the sound transmission hole 26 can change the surface area and structure of the oscillation factor 25, so that the sound can be more effectively transmitted; the sound transmission hole 26 can increase the contact area between the oscillation factor 25 and the air, thereby increasing the energy transfer and transmission efficiency of the sound; this helps to improve the loudness and clarity of the sound; the sound transmission hole 26 can change the resonance behavior of the oscillation factor 25, reduce the resonance peak and distortion of the sound; the sound transmission hole 26 can dissipate and disperse the resonance energy of the sound wave, avoid the sound too concentrated on a particular frequency, thereby reducing the resonance and distortion of the sound; and the sound transmission hole 26 can increase the air flow between the oscillation factor 25 and the surrounding air; this helps to adjust the resonance and attenuation characteristics of the sound, improve the quality and tone of the sound; in summary, by providing the sound transmission hole 26 on the outer surface of the oscillation factor 25, the transmission efficiency of the sound can be improved, the frequency range of the sound can be expanded, the distortion and resonance can be reduced, and the air flow of the sound can be increased; these benefits help to improve the quality and audibility of the sound, providing a better listening experience; the center of the oscillation factor 25 is provided with a fixed ball 27, a penetrating channel 28 is arranged between the outer surface of the fixed ball 27 and the oscillation factor 25, the penetrating channel 28 is of a fold line type structure, and one end of the penetrating channel 28 is connected with the sound transmission hole 26; by arranging the penetrating channel 28 of a fold line type structure between the outer surface of the fixed ball 27 and the oscillation factor 25, the fold line type penetrating channel 28 enables the oscillation factor 25 to expand outward well, and the fold line type penetrating channel 28 has a memory property, enabling the oscillation factor 25 to contract inward well, and through the arrangement of the penetrating channel 28, the sound can be reflected and scattered between the fixed ball 27 and the oscillation factor 25, thereby making the sound energy more dispersed; this can reduce the concentration of sound in a local area and avoid resonance and distortion; at the same time, the dispersed sound can be more evenly transmitted to the surrounding environment, improving the uniformity and naturalness of the sound; and through the fold line type structure of the penetrating channel 28, the sound will be reflected and refracted multiple times during transmission, thereby increasing the path length and time delay of the sound; this helps to make the waveform of the sound clearer and more accurate, improving the resolution and resolution of the sound; at the same time, the fold line type structure can also hinder the propagation of some unnecessary sound waves, reducing noise and interference, further improving the clarity and purity of the sound, and the penetrating channel 28 can provide additional paths for sound waves, reducing energy loss and attenuation of the sound during transmission; by reasonably designing the fold line type structure, the energy loss of the sound can be minimized, and the fidelity and transmission efficiency of the sound can be improved; in addition, the arrangement of the penetrating channel 28 can expand the coverage range of the sound, so that the sound can be more widely transmitted to the surrounding environment; this helps to improve the diffusivity and surround feeling of the sound, creating a more three-dimensional and immersive listening effect;In summary, by placing a fixed sphere 27 at the center of the oscillation factor 25 and creating a zigzag-shaped penetration channel 28 between the outer surface of the fixed sphere 27 and the oscillation factor 25, sound dispersion can be improved, sound clarity enhanced, sound wave loss and attenuation reduced, and sound coverage expanded. These benefits contribute to improved sound quality and audibility, providing users with a superior listening experience.

[0039] like Figure 4 As shown, the connecting layer 3 includes a first hot-melt adhesive layer 31 and a second hot-melt adhesive layer 32, with conductive fibers 33 disposed between the first hot-melt adhesive layer 31 and the second hot-melt adhesive layer 32. By employing hot pressing, the first hot-melt adhesive layer 31 and the second hot-melt adhesive layer 32 are melted from a solid state at room temperature into a liquid state, and the conductive fibers 33 are squeezed into the liquid state of the first hot-melt adhesive layer 31 and the second hot-melt adhesive layer 32, thereby achieving a stable connection between the sound-averaging layer 2 and the hot-melt fabric layer 4. The first hot-melt adhesive layer 31 and the second hot-melt adhesive layer 32 have identical structures. The device comprises several adhesive dots, each with a teardrop-shaped structure and rounded and conical ends. The conical ends of the dots connect to conductive fibers 33. At room temperature, the adhesive dots are solid, and gaps are formed between the rounded ends, which facilitates sound transmission. When the rounded ends of the adhesive dots are subjected to heat and pressure, the conical ends begin to melt until they fuse with the conductive fibers 33, forming a single unit. When the hot-melt adhesive dots are in a liquid state, they can better penetrate into the gaps between the fibers of the hot-melt fabric, forming a tighter bond. Due to the liquid nature of the adhesive dots, they can fully fill the gaps between the fibers, creating a larger contact area. This improves bonding strength; when hot melt adhesive dots are in a liquid state, they cool and solidify rapidly after hot pressing; this rapid curing characteristic makes the bonding process more efficient and faster, saving time and energy required for bonding; when hot melt adhesive dots are in a liquid state, they can be evenly distributed on the surface of the hot melt fabric through hot pressing; this ensures that the adhesive dots are evenly distributed throughout the bonding area, avoiding localized non-adhesion or excessive concentration of adhesive dots; and it can adapt to the bonding of different materials because the adhesive dots can adjust their fluidity and viscosity according to the temperature and pressure changes during the hot pressing process to adapt to different materials. Bonding requirements: Because hot melt adhesive dots can fully penetrate and cure in a liquid state, they have high bonding strength and therefore good durability for bonding hot melt fabrics. The bonded hot melt adhesive dots can withstand certain tensile, shear, and tearing forces, maintaining the stability and durability of the bond. In summary, hot-pressed melted adhesive dots can better bond with hot melt fabrics in a liquid state, improving bond strength, accelerating curing, ensuring uniform distribution, exhibiting strong adaptability, and providing good durability. These characteristics give hot melt adhesive dots an advantage in the bonding process of hot melt fabrics, providing reliable, stable, and durable bonding results.

[0040] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A heat-fused mesh fabric for over-ear headphones, comprising, from the inside out, a base layer (1), a sound equalization layer (2), a connecting layer (3), and a heat-fused fabric layer (4), characterized in that: The equalization layer (2) includes glass fiber (21) and vibrating fiber (22), which are arranged alternately in pairs. A rectangular channel (23) is formed between the glass fiber (21) and the vibrating fiber (22). Elastic fiber (24) is provided at the corner of the rectangular channel (23). The elastic fiber (24) has a spiral structure. One end of the spiral elastic fiber (24) is connected to the inner wall of the rectangular channel (23), and the other end of the elastic fiber (24) is gathered at the center of the rectangular channel (23) to form an oscillation factor (25). The oscillation factor (25) has a spherical structure and is used to adjust the expansion volume of the oscillation factor (25) according to the volume level. The oscillation factor (25) is made of rubber; The outer surface of the oscillation factor (25) is provided with a plurality of sound-permeable holes (26), and the outer end cross section of the sound-permeable hole (26) is smaller than the inner end cross section of the sound-permeable hole (26); A fixed ball (27) is provided at the center of the oscillation factor (25). A penetration channel (28) is provided between the outer surface of the fixed ball (27) and the oscillation factor (25). The penetration channel (28) has a zigzag structure, and one end of the penetration channel (28) is connected to the sound hole (26).

2. The hot-melt mesh fabric for headphones according to claim 1, characterized in that: The connecting layer (3) includes a first hot melt adhesive layer (31) and a second hot melt adhesive layer (32), and conductive fibers (33) are provided between the first hot melt adhesive layer (31) and the second hot melt adhesive layer (32).

3. The hot-melt mesh fabric for headphones according to claim 2, characterized in that: The first hot melt adhesive layer (31) and the second hot melt adhesive layer (32) have the same structure. The first hot melt adhesive layer (31) includes a plurality of adhesive dots. The adhesive dots have a teardrop-shaped structure and are provided with a rounded end and a conical end. The conical end of the adhesive dots is connected to a conductive fiber (33).

4. The hot-melt mesh fabric for headphones according to claim 3, characterized in that: The conductive fiber (33) is a polyester fiber, and the two ends of the conductive fiber (33) are respectively connected to the tapered ends of the first hot melt adhesive layer (31) and the second hot melt adhesive layer (32).

5. The hot-melt mesh fabric for headphones according to claim 1, characterized in that: The hot melt fabric layer (4) is made of a blend of nylon fiber and polypropylene fiber.

6. The hot-melt mesh fabric for headphones according to claim 1, characterized in that: The base layer (1) is made of hot melt film, and the interior of the base layer (1) has several vent holes.

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