Dustproof cap of loudspeaker

Abstract

The utility model relates to the field of dustproof caps, and discloses a dustproof cap of a loudspeaker, which comprises a funnel-shaped loudspeaker basin body and a dustproof cap structure adhered to the inner side of the loudspeaker basin body, and the dustproof cap structure is composed of a semi-arc cap body arc-shaped block and a dustproof film arranged on the outer side of the cap body arc-shaped block. The dustproof film is adhered to the outer side of the cap body arc-shaped block through glue, the dustproof film is made of a non-woven fabric material, an inner annular protrusion attached to the inner wall of the loudspeaker basin body is integrally formed on the inner side of the cap body arc-shaped block, and an insertion block is integrally formed at the position, corresponding to the circular hole area of the loudspeaker basin body, of the inner annular protrusion. The insertion block is inserted into the circular hole of the loudspeaker basin body, the dustproof film made of non-woven fabric is adopted, the special fiber structure of the dustproof film can effectively block tiny particles such as dust, hair and pollen, and compared with a traditional common plastic or paper dustproof cap, the filtering effect on tiny dust is remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to dustproof cap field, concretely is a dustproof cap of loudspeaker. BACKGROUND

[0002] In modern audio equipment, the loudspeaker as the key sounding component, its performance directly affects the quality and effect of audio playback. And the loudspeaker in the use process, it is easy to be invaded by dust, water vapor, hair and other foreign matters. These foreign matters once enter the loudspeaker inside, possibly will adhere to the diaphragm, voice coil and other key components, cause the diaphragm vibration anomaly, and then make the loudspeaker emitted sound appear distortion, noise and other problems, seriously affect the tone quality, at the same time, the long-term accumulation of foreign matters can also accelerate the wear and corrosion of components, shorten the service life of loudspeaker, increase the maintenance cost and replacement frequency of equipment.

[0003] The traditional loudspeaker dustproof cap structure is relatively simple, usually only adopts single material, such as ordinary plastic or paper material. These simple structure dustproof caps have many deficiencies in dustproof effect. The dustproof cap of ordinary plastic material can not be sealed, and it is difficult to effectively block the small dust particles. Although the paper dustproof cap has certain air permeability, but the water resistance and wear resistance are poor, and it is easy to be damaged in humid environment or under external force friction, and loses the dustproof function. Moreover, the connection mode of the traditional dustproof cap with the loudspeaker basin is also single, mostly simple sticking or clamping, and the firmness and stability of the connection are insufficient, and after the equipment is vibrated or used for a long time, the dustproof cap is easy to fall off or loosen, so that the dustproof effect is greatly reduced. Therefore, we provide a dustproof cap of loudspeaker. UTILITY MODEL CONTENTS

[0004] In view of the defects of the prior art, the utility model provides a dustproof cap of loudspeaker, which solves the above problems.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a dustproof cap of loudspeaker, which comprises a funnel-shaped loudspeaker basin and a dustproof cap structure adhered to the inner side of the loudspeaker basin, the dustproof cap structure is composed of a cap body arc block and a dustproof film arranged on the outer side of the cap body arc block, the dustproof film is adhered to the outer side of the cap body arc block by glue, the dustproof film is made of non-woven fabric material, an internal annular protrusion matched with the inner wall of the loudspeaker basin is integrally formed on the inner side of the cap body arc block, an insertion block is integrally formed on the internal annular protrusion corresponding to the circular hole area of the loudspeaker basin, and the insertion block is inserted into the circular hole of the loudspeaker basin.

[0006] Preferably, a plurality of annular rubber protrusions are equidistantly arranged on the outer side wall surface of the insertion block, and the annular rubber protrusions are made of deformable rubber material.

[0007] Preferably, two internal support skeletons are arranged on the inner side wall of the cap arc block, and the two internal support skeletons are arranged in a cross shape.

[0008] Preferably, a side protrusion is integrally formed on the outer side of the cap arc block, and the side protrusion is attached to the speaker basin.

[0009] Preferably, a ring-shaped glue accommodating groove is arranged on one side of the speaker basin corresponding to the side protrusion.

[0010] Compared with the prior art, the dustproof cap for the speaker has the following beneficial effects:

[0011] Excellent dustproof performance: the dustproof film made of non-woven fabric has a special fiber structure that can effectively block dust, hair, pollen and other small particles. Compared with traditional ordinary plastic or paper dustproof caps, the filtering effect of small dust is significantly improved. Even in a dusty and harsh environment, the dustproof cap can provide reliable dustproof protection for the internal key components of the speaker, ensuring that the speaker always works in a clean environment.

[0012] Stable connection mode: the cap arc block is tightly attached to the inner wall of the speaker basin through the internal ring-shaped protrusion, and the insertion block is inserted into the circular hole of the speaker basin, and the ring-shaped rubber protrusion on the outer wall surface deforms to fill the gap when inserted, greatly enhancing the tightness and sealing of the connection. Compared with the traditional simple pasting or clamping method, this connection method is more stable, and even if the device is subjected to strong vibration or long-term use, it is not easy to fall off or loosen, effectively ensuring the long-term stable dustproof effect of the dustproof cap.

[0013] Enhanced structural rigidity: the two internal support skeletons arranged in a cross shape on the inner side of the cap arc block are made of high-strength fiber material, which greatly increases the overall rigidity. This makes the dustproof cap effectively disperse external force when accidentally touched or extruded, maintains the structural integrity, avoids affecting the dustproof effect or causing damage to the internal components of the speaker due to structural deformation, thereby prolonging the service life of the speaker.

[0014] Good sound propagation characteristics: the dustproof film made of non-woven fabric has good air permeability, effectively prevents dust while not significantly hindering the propagation of sound, ensuring that the sound emitted by the speaker is clear and natural, without the problem of sound distortion or attenuation caused by dustproof measures, meeting the pursuit of high-quality sound by consumers.

[0015] Convenient installation and maintenance: the annular glue accommodating groove is arranged on the side protrusion, and when installing, only needs to inject glue into the groove, and then inserts the plug-in block into the round hole of the speaker cone body, so that the installation is simple and convenient, and the production efficiency is improved. Moreover, when the speaker needs to be maintained or the dustproof cap needs to be replaced, the dustproof cap can be easily disassembled, and the speaker cone body and other components are not damaged.

[0016] Strong adaptability to complex environment: the deformable rubber material of the annular rubber protrusion can fill the gap between the plug-in block and the round hole of the speaker cone body, effectively prevent water vapor from entering, so that the speaker can work normally in a humid environment. Meanwhile, the stability of the overall structure and the selection of high-quality materials enable the dustproof cap to adapt to different temperature, humidity and other complex environmental conditions, thereby widening the use scenarios of the speaker. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the utility model;

[0018] Figure 2 is a side view schematic view of the utility model;

[0019] Figure 3 is Figure 2 is a C-C cross-sectional schematic view in

[0020] Figure 4 is a D-D cross-sectional schematic view in Figure 2 ;

[0021] Figure 5 is a B local enlarged schematic view in Figure 4 ;

[0022] In the figure: 1, speaker cone body; 2, dustproof cap structure; 3, cap body arc block; 4, internal support framework; 5, side protrusion; 6, glue accommodating groove; 7, internal annular protrusion; 8, plug-in block; 9, annular rubber protrusion; 10, dustproof film. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] Please refer to Figures 1-5The dustproof cap of the loudspeaker comprises a funnel-shaped loudspeaker basin 1 and a dustproof cap structure 2 adhered to the inner side of the loudspeaker basin 1, wherein the dustproof cap structure 2 is composed of a cap arc-shaped block 3 and a dustproof film 10 arranged on the outer side of the cap arc-shaped block 3, the dustproof film 10 is adhered to the outer side of the cap arc-shaped block 3 by glue, the dustproof film 10 is made of non-woven fabric material, the inner side of the cap arc-shaped block 3 is integrally formed with an inner annular protrusion 7 matched with the inner wall of the loudspeaker basin 1, and the inner annular protrusion 7 is integrally formed with a plug-in block 8 corresponding to the circular hole area of the loudspeaker basin 1, and the plug-in block 8 is plugged into the circular hole of the loudspeaker basin 1.

[0025] Further, a plurality of annular rubber protrusions 9 are arranged equidistantly on the outer side wall surface of the plug-in block 8, the annular rubber protrusions 9 are made of deformable rubber material, when the plug-in block 8 is inserted into the inner circular hole of the loudspeaker basin 1, the annular rubber protrusions 9 will deform to fill the gap and ensure the airtightness.

[0026] Further, two inner support skeletons 4 are arranged on the inner wall of the inner side of the cap arc-shaped block 3, the two inner support skeletons 4 are arranged in a cross shape, the rigidity of the whole is increased by the inner support skeletons 4, so as to prevent the dustproof cap structure 2 from being depressed due to accidental touch during use.

[0027] Further, a side protrusion 5 is integrally formed on the outer side of the cap arc-shaped block 3, and the side protrusion 5 is matched with the loudspeaker basin 1.

[0028] Further, the side protrusion 5 is provided with an annular glue accommodating groove 6 corresponding to one side of the loudspeaker basin 1, when the glue is needed to be adhered, the glue is injected into the inner side of the glue accommodating groove 6, then the plug-in block 8 is inserted into the circular hole on the loudspeaker basin 1, then the glue is in contact with the loudspeaker basin 1 to adhere the two.

[0029] Structure description:

[0030] The loudspeaker basin 1 is a basic bearing component of the whole loudspeaker dustproof cap, which is made of high-strength plastic material and has a funnel shape. This funnel-shaped design not only conforms to the acoustic principle and is helpful for effective propagation and diffusion of sound, but also provides a stable foundation for the installation of other components. The inner side surface is specially treated and has a certain roughness to enhance the connection stability with the dustproof cap structure 2. At the same time, a circular hole is precisely machined for tightly fitting and installing the plug-in block 8 on the dustproof cap structure 2, so as to ensure that the two are connected firmly and accurately positioned.

[0031] Dustproof cap structure 2: is the core component of the whole dustproof design, which is composed of cap body arc block 3 and outer dustproof film 10. The cap body arc block 3 is made of lightweight and strong engineering plastic, which not only ensures the structural strength but also reduces the overall weight. It is installed on the inner side of the speaker cone 1 and forms an effective protective barrier through close connection, which plays a key role in preventing dust, hair, water vapor and other foreign matters from entering the interior of the speaker, thereby ensuring the normal operation of the speaker, prolonging its service life and avoiding problems such as damage to sound quality or components caused by foreign matter invasion.

[0032] Cap body arc block 3: It is a semicircular arc shape and is the main supporting part of the dustproof cap structure 2. The inner side is integrally formed with an internal annular protrusion 7 and a plug-in block 8. The internal annular protrusion 7 closely fits the inner wall of the speaker cone 1, not only enhancing the tightness of the connection, but also playing a certain sealing role to prevent dust from entering from the gap. The plug-in block 8 is used to tightly connect with the round hole of the speaker cone 1 to achieve precise positioning. The outer side adopts a special surface treatment process to enhance the adhesion effect with the dustproof film 10. And it is integrally formed with a side protrusion 5, which closely fits the speaker cone 1, further enhancing the stability of the connection. The inner wall of the inner side is provided with two internal support skeletons 4 in the shape of a cross. The internal support skeletons 4 are made of high-strength fiber material, which greatly increases the overall rigidity.

[0033] Internal support skeleton 4: It is arranged on the inner wall of the inner side of the cap body arc block 3, and the two skeletons are cross-shaped. It is made of high-strength carbon fiber material, which has the characteristics of light weight and high strength. Its main function is to increase the overall rigidity of the cap body arc block 3, effectively disperse external force, and even when subjected to large external pressure or accidental touch, it can maintain the structure intact and prevent the overall dustproof cap structure 2 from being concave. This not only ensures that the dustproof effect is not affected, but also avoids damage to the internal components of the speaker caused by structural deformation, thereby ensuring the normal sound and sound quality of the speaker.

[0034] Side protrusion 5: It is integrally formed on the outer side of the cap body arc block 3 and closely fits the speaker cone 1. The side protrusion 5 is made of soft and elastic rubber material, which not only ensures close contact with the speaker cone 1, but also has a certain buffering effect, reducing damage to the connection part caused by vibration or impact. A ring-shaped glue accommodating groove 6 is provided on the side corresponding to the speaker cone 1. The depth and width of the glue accommodating groove 6 are carefully designed, which can store enough glue to ensure the firmness of the connection, and also will not overflow due to too much glue, affecting the appearance and performance of the product.

[0035] Glue accommodating groove 6: Opened in the side of the protrusion 5 corresponding to the side of the speaker cone 1, in the form of a ring. In the installation of dustproof cap structure 2, choose high strength, high temperature resistant special glue injection into the slot. When the plug 8 is inserted into the speaker cone 1 hole, the glue under the action of its own viscosity and pressure, evenly distributed in the connecting part, with the speaker cone 1 fully contact, form a firm chemical bond, so that the dustproof cap structure 2 and the speaker cone 1 firmly adhered together, ensure that in a variety of complex environment can maintain stable connection state.

[0036] Internal annular protrusion 7: In the inside of the cap body arc block 3, the same high strength engineering plastics material as the cap body arc block 3. When the inner wall of the speaker cone 1 is attached, through the accurate size design and close cooperation, further enhance the tightness of the dustproof cap structure 2 and the speaker cone 1 connection. At the same time, the position and shape of the internal annular protrusion 7 are carefully designed, which plays a certain positioning role in the dustproof cap structure 2, ensures the accuracy of the installation process, improves the production efficiency and product quality.

[0037] Plug 8: Also in the inside of the cap body arc block 3 corresponding to the speaker cone 1 hole area, made of high strength, high toughness plastic material, can withstand a certain external force without deformation or damage. Can be inserted into the hole inside the speaker cone 1, realize the preliminary positioning and connection. Its outer wall surface is provided with a plurality of annular rubber protrusions 9, which are equidistantly arranged. The annular rubber protrusions 9 are made of high quality silicone rubber material, which has good elasticity and wear resistance.

[0038] Annular rubber protrusion 9: Located on the outer wall surface of the plug 8, equidistantly distributed, made of high quality deformable silicone rubber. When the plug 8 is inserted into the hole inside the speaker cone 1, the annular rubber protrusion 9 will be elastically deformed after being extruded, tightly filling the gap between the two, forming a good sealing effect. Effectively prevent dust, water vapor and other through the joint gap into the speaker, protect the sealing of the speaker inside, even in humid, dusty and other harsh environments, can ensure the normal work of the speaker.

[0039] Dustproof film 10: Made of non-woven fabric, adhered to the outside of the cap body arc block 3 by environmentally friendly glue. This non-woven fabric adopts special fiber weaving process, which has good air permeability and dustproof performance. The tiny pores between its fibers can effectively block dust, pollen, hair and other small particles from entering the speaker inside, while ensuring the smooth transmission of sound, which will not have obvious influence on the sound quality of the speaker. In addition, the non-woven fabric material also has certain corrosion resistance and aging resistance, which can maintain stable performance in the long-term use process.

[0040] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust cap for a loudspeaker, characterized by: The dustproof cap structure (2) is composed of a half-circular arc-shaped cap arc block (3) and a dustproof film (10) arranged outside the cap arc block (3), the dustproof film (10) is adhered to the outside of the cap arc block (3) by glue, and the dustproof film (10) is made of non-woven fabric material.

2. A dust cap for a loudspeaker as claimed in claim 1, characterised in that: An inner annular protrusion (7) is integrally formed on the inner side of the cap arc block (3) and is attached to the inner wall of the speaker cone (1), the inner annular protrusion (7) is integrally formed with a plug-in block (8) corresponding to the circular hole area of the speaker cone (1), and the plug-in block (8) is inserted into the circular hole of the speaker cone (1).

3. A dust cap for a loudspeaker according to claim 2, characterised in that: A plurality of annular rubber protrusions (9) are equidistantly arranged on the outer side wall of the plug-in block (8), and the annular rubber protrusions (9) are made of deformable rubber material.

4. A dust cap for a loudspeaker as claimed in claim 1, characterised in that: Two internal support skeletons (4) are arranged on the inner wall of the inner side of the cap arc block (3), and the two internal support skeletons (4) are arranged in a cross shape.

5. A dust cap for a loudspeaker as claimed in claim 1, characterised in that: A side protrusion (5) is integrally formed on the outer side of the cap arc block (3) and is attached to the speaker cone (1).

6. A dust cap for a loudspeaker according to claim 5, characterised in that: An annular glue accommodating groove (6) is formed on one side of the side protrusion (5) corresponding to the speaker cone (1).

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