Loudspeaker diaphragm fixing structure

Abstract

The utility model discloses a loudspeaker diaphragm fixing structure, comprising a sound basin, a T iron arranged on one side of the sound basin, a magnetic steel and a washer respectively sleeved on the T iron, a damper arranged in the cavity of the sound basin, a skeleton assembly arranged in the center of the damper, the skeleton assembly connected to the T iron, a voice coil diaphragm respectively arranged on the outer side wall of the skeleton assembly, and a voice coil abutting against the diaphragm. The vibrating diaphragm is embedded in the sound cone, a folding ring matched with the sound cone is arranged above the vibrating diaphragm, a cap assembly is arranged at the end part of the framework assembly, and the cap assembly is arranged above the vibrating diaphragm and abuts against the upper surface of the vibrating diaphragm; according to the utility model, all the components are tightly matched, so that the voice coil and the vibrating diaphragm are accurately positioned, the loudspeaker and the voice coil are always tightly contacted in a long-term use process, the structural stability and durability are obviously enhanced, sound distortion is reduced, and the service life of the loudspeaker is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of loudspeaker technology, and in particular relates to a loudspeaker diaphragm fixing structure. Background Technology

[0002] In the field of modern audio equipment, loudspeakers are important sound output components, and their performance directly affects the quality of audio playback. The diaphragm fixing structure plays a key role in the overall performance of loudspeakers, determining important indicators such as diaphragm stability, vibration accuracy, and sound reproduction.

[0003] Currently, the existing speaker diaphragm fixing structures on the market have some shortcomings. Specifically, the connections between the components of the existing structures are not stable and tight enough. During long-term use, due to the frequent vibration of the speaker, the original tight contact between the voice coil and the diaphragm is prone to change, and gaps gradually appear. The appearance of these gaps will seriously affect the propagation and vibration transmission of sound, resulting in sound distortion and a significant reduction in the sound quality of audio playback, failing to meet users' needs for a high-quality audio experience.

[0004] In summary, existing loudspeaker diaphragm fixing structures are no longer sufficient to meet the market's demand for high-quality, high-stability loudspeakers. Therefore, industry professionals have developed a new loudspeaker diaphragm fixing structure. Utility Model Content

[0005] The purpose of this invention is to provide a speaker diaphragm fixing structure that addresses the problem that existing speaker diaphragm fixing structures suffer from unstable and loose connections between components, leading to gaps between the voice coil and diaphragm after prolonged use, which affects sound propagation and vibration transmission, resulting in sound distortion.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a loudspeaker diaphragm fixing structure, including a cone, a T-iron provided on one side of the cone, a magnet and a washer respectively fitted on the T-iron, a spider provided in the cone cavity, a skeleton assembly provided at the center of the spider, the skeleton assembly connected to the T-iron, a voice coil diaphragm respectively provided on the outer wall of the skeleton assembly, the voice coil and the diaphragm abutting against each other, the diaphragm being embedded in the cone, a folded ring provided above the diaphragm to cooperate with the cone, a cap assembly provided at the end of the skeleton assembly, the cap assembly being placed above the diaphragm and abutting against its upper surface.

[0007] Furthermore, the T-iron has a base and a central column, the base and the central column are vertically connected and integrally formed, the top of the central column is provided with a connecting groove, and the magnet and the washer are sequentially sleeved on the central column.

[0008] Furthermore, the skeleton assembly includes a skeleton body, which is cylindrical, and a connecting post adapted to the connecting groove is provided at the bottom of the skeleton body. Several spherical protrusions are evenly distributed along the circumferential direction on the top sidewall of the skeleton body.

[0009] Furthermore, the edge of the diaphragm is provided with a flange structure, and a corresponding fitting groove is provided on the inner wall above the cone, and the flange structure of the diaphragm is embedded in the fitting groove.

[0010] Furthermore, the folding ring is made of rubber, and the outer edge of the folding ring is fixedly connected to the inner wall of the cone by an adhesive.

[0011] Furthermore, the cap assembly includes a cap body, which is bowl-shaped. The bottom of the cap body is provided with several sets of claws, the number of which corresponds to the number of spherical protrusions. The claws are provided with slots that are adapted to the spherical protrusions, and there is an expansion groove between two adjacent sets of claws.

[0012] Beneficial effects: This utility model has a reasonable design, simple and stable structure, and strong practicality, and has the following beneficial effects:

[0013] 1. Stable structure to prevent diaphragm displacement: The claws of the cap assembly cooperate with the spherical protrusion on the top of the frame body to effectively limit the displacement of the diaphragm and voice coil during long-term use, avoid gaps between the two, ensure stable sound propagation and vibration transmission, significantly reduce sound distortion, and improve sound quality.

[0014] 2. Optimize diaphragm installation and enhance sealing and stability: The flanged structure of the diaphragm edge is embedded in the fitting groove on the inner wall above the cone. Combined with the rubber ring whose outer edge is bonded and fixed to the inner wall of the cone, it not only enhances the stability of the diaphragm installation, but also improves the sealing of the entire speaker, reduces sound leakage, makes the sound more focused and pure, and improves the audio playback effect.

[0015] 3. Facilitates assembly and improves production efficiency: The structural design of each component facilitates assembly. For example, the connection methods between the skeleton assembly and the T-iron, and between the cap assembly and the skeleton assembly, reduce assembly difficulty, which is conducive to efficient assembly during large-scale production, shortens the production cycle, and reduces production costs.

[0016] 4. Improved structural durability: The tight and reasonable connection between the components can effectively disperse the vibration stress generated during the operation of the speaker, reduce the wear and damage of the components caused by vibration, extend the service life of the speaker diaphragm fixing structure, and enhance product reliability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the T-iron of this utility model;

[0020] Figure 4 This is a schematic diagram of the skeleton assembly of this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the cap assembly of this utility model.

[0022] In the diagram: 1-cone, 2-T iron, 3-magnet, 4-washer, 5-spangle, 6-frame assembly, 7-voice coil, 8-diaphragm, 9-surround, 10-cap assembly;

[0023] 201-Chassis, 202-Center Column, 203-Connecting Groove, 601-Skeleton Body, 602-Connecting Column, 603-Spherical Protrusion, 1001-Cap Body, 1002-Claw, 1003-Claw Groove, 1004-Expansion Groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Example 1:

[0026] Combination Figure 1-5The diagram illustrates a loudspeaker diaphragm fixing structure. The foundation of this structure is the cone 1, which has a smooth surface and a precisely designed internal cavity. This provides a stable mounting environment for other components while also performing initial sound reflection and guidance. A T-iron 2 is mounted on one side of the cone 1, efficiently guiding and converging the magnetic field. A magnet 3 and a washer 4 are sequentially mounted on the T-iron 2. The magnet 3, as the core of the magnetic field generation, is made of high-performance permanent magnet material and undergoes special magnetization to generate a strong and stable magnetic field, providing magnetic power for the loudspeaker's operation. The washer 4, mounted above the magnet 3, is made of a metal with excellent magnetic permeability. This is used to optimize the magnetic field distribution, enhance its uniformity and stability, and ensure that the voice coil experiences uniform force in the magnetic field. The cone 1 cavity contains a circular, corrugated spider 5. A frame assembly 6 is placed at the center of the spider 5, and the frame assembly 6 is tightly connected to the T-iron 2 to ensure stability and prevent displacement during speaker operation. The voice coil 7 and diaphragm 8 are respectively mounted on the outer wall of the frame assembly 6. The voice coil 7 is made of high-purity copper, and the surface of the wire undergoes special insulation treatment to ensure smooth current flow in the magnetic field and generate precise electromagnetic driving force. The voice coil 7 and diaphragm 8 are in close contact. The contact connection method ensures that the vibration generated by the voice coil 7 is efficiently transmitted to the diaphragm 8, and also guarantees that the two will not loosen or separate due to frequent vibration during long-term operation. The diaphragm 8 is made of lightweight, high-rigidity materials with good acoustic properties, such as polypropylene and mica composite materials. The diaphragm 8 is precisely embedded in the cone 1, so that the diaphragm 8 can be stably fixed in the cone 1 and maintain good sealing with the inner wall of the cone 1, effectively preventing sound leakage. Above the diaphragm 8, a surround 9 is provided to cooperate with the cone 1. The cap assembly 10, located at the end of the frame assembly 6, provides necessary elastic support for the diaphragm 8, enabling it to maintain a stable amplitude and frequency response during vibration. It also effectively buffers the impact force generated by the diaphragm 8 during vibration, preventing damage to the diaphragm 8 due to excessive force. The cap assembly 10 is precisely positioned above the diaphragm 8 and in close contact with its upper surface. The function of the cap assembly 10 is not only to further stabilize the diaphragm 8 and prevent it from shifting or deforming during vibration, but also to provide a certain degree of protection for the diaphragm 8, preventing external debris or dust from entering and affecting the performance and service life of the diaphragm 8.

[0027] In this embodiment, combined with Figure 3As a key magnetic conduction component in the entire loudspeaker diaphragm fixing structure, the T-iron 2 has a significant impact on the performance of the loudspeaker. The T-iron 2 has a base 201 and a center post 202. The base 201 is disc-shaped with a large surface area, which allows the T-iron 2 to be stably placed on one side of the cone 1. The center post 202 extends upward perpendicular to the base 201. The two are manufactured using advanced one-piece molding technology. This process ensures that the connection between the base 201 and the center post 202 is firm and seamless, effectively avoiding problems such as decreased magnetic permeability or insufficient mechanical strength caused by defects at the connection. A connecting groove 203 is provided on the top of the center post 202, thereby providing a reliable positioning and connection base for the stable installation of the frame assembly 6. The magnet 3 and the washer 4 are sequentially fitted onto the center post 202.

[0028] In this embodiment, combined with Figure 4 The skeleton assembly 6 shown is a key part of the speaker diaphragm fixing structure, playing a core role in sound conduction and structural support. It mainly consists of a skeleton body 601, which is cylindrical in shape. A connecting post 602 is provided at the bottom of the skeleton body 601. The design of the connecting post 602 is perfectly matched with the connecting groove 203 at the top of the center post 202 of the T-iron 2, so that it can achieve a tight and precise docking, thereby ensuring that the skeleton assembly 6 can be stably connected to the T-iron 2. On the top side wall of the skeleton body 601, several spherical protrusions 603 are evenly distributed along the circumference, which facilitates the subsequent connection with other components.

[0029] In this embodiment, the diaphragm 8 is a key component for the speaker to achieve accurate sound reproduction. Its installation stability and sealing are crucial. A flange structure is designed on the edge of the diaphragm 8. At the same time, a fitting groove is set on the inner wall above the cone 1 at the position corresponding to the flange structure of the diaphragm 8. In the actual assembly process, the flange structure of the diaphragm 8 is embedded in the fitting groove of the cone 1. In order to further enhance the stability and sealing of the connection between the two, a solid guarantee is provided for the efficient and accurate sound production of the speaker.

[0030] In this embodiment, the surround 9 is made of high-quality rubber material. Its elasticity ensures that the diaphragm 8 can obtain just the right support and recovery force during vibration. The outer edge of the surround 9 is firmly fixed to the inner wall of the cone 1 by an adhesive, ensuring that the surround 9 is tightly bonded to the inner wall of the cone 1. During the operation of the speaker, even if it is subjected to severe vibration and complex external forces, it will not loosen or fall off.

[0031] In this embodiment, combined with Figure 5The cap assembly 10 shown is a key protective and fastening component in the speaker diaphragm fixing structure. It mainly includes a cap body 1001, which is bowl-shaped. This unique shape not only conforms to acoustic principles, helping to optimize sound reflection and propagation paths and reduce internal sound scattering and interference, thereby improving sound clarity and purity, but also provides all-around protection for the diaphragm 8 below, effectively blocking the intrusion of external dust, debris, etc., preventing the diaphragm 8 from being affected by external contaminants. Several sets of latches 1002 are provided at the bottom of the cap body 1001. The number of these latches 1002 corresponds to the number of spherical protrusions 603. Each latch 1002 has... A slot 1003 is provided to fit the spherical protrusion 603. When the cap assembly 10 is installed at the end of the frame assembly 6, the slot 1003 on the claw 1002 can accurately engage with the spherical protrusion 603 to form a firm engagement structure. This design not only allows the cap assembly 10 to be stably fixed on the frame assembly 6, effectively preventing it from shifting or falling off due to vibration during speaker operation, but also provides further fastening for the diaphragm 8, ensuring that the diaphragm 8 remains stable during high-frequency vibration. In addition, an expansion groove 1004 is provided between two adjacent sets of claws 1002. The expansion groove 1004 gives the claws 1002 a certain elastic deformation capability, which facilitates the disassembly and installation of the cap assembly 10.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A loudspeaker diaphragm fixing structure, comprising a cone (1), a T-iron (2) disposed on one side of the cone (1), a magnet (3) and a washer (4) respectively sleeved on the T-iron (2), and a spider (5) disposed inside the cavity of the cone (1), characterized in that: The center of the spring (5) is provided with a skeleton assembly (6), which is connected to the T iron (2). A voice coil (7) and a diaphragm (8) are respectively provided on the outer wall of the skeleton assembly (6). The voice coil (7) and the diaphragm (8) abut against each other. The diaphragm (8) is embedded in the cone (1). A folded ring (9) that cooperates with the cone (1) is provided above the diaphragm (8). A cap assembly (10) is provided at the end of the skeleton assembly (6). The cap assembly (10) is placed above the diaphragm (8) and abuts against its upper surface.

2. The loudspeaker diaphragm fixing structure according to claim 1, characterized in that: The T-iron (2) has a base (201) and a central column (202). The base (201) and the central column (202) are vertically connected and integrally formed. A connecting groove (203) is provided on the top of the central column (202). The magnet (3) and the washer (4) are sequentially sleeved on the central column (202).

3. The loudspeaker diaphragm fixing structure according to claim 2, characterized in that: The skeleton assembly (6) includes a skeleton body (601), which is cylindrical. The bottom of the skeleton body (601) is provided with a connecting post (602) that is adapted to the connecting groove (203). The top sidewall of the skeleton body (601) is provided with a number of spherical protrusions (603) evenly distributed along the circumferential direction.

4. The loudspeaker diaphragm fixing structure according to claim 3, characterized in that: The edge of the diaphragm (8) is provided with a flange structure, and a corresponding fitting groove is provided on the inner wall above the cone (1). The flange structure of the diaphragm (8) is embedded in the fitting groove.

5. The loudspeaker diaphragm fixing structure according to claim 4, characterized in that: The folding ring (9) is made of rubber, and the outer edge of the folding ring (9) is fixedly connected to the inner wall of the cone (1) by an adhesive.

6. The loudspeaker diaphragm fixing structure according to claim 5, characterized in that: The cap assembly (10) includes a cap body (1001), which is bowl-shaped. The bottom of the cap body (1001) is provided with a number of claws (1002). The number of claws (1002) corresponds to the number of spherical protrusions (603). The claws (1002) are provided with slots (1003) that are adapted to the spherical protrusions (603). There are expansion slots (1004) between two adjacent sets of claws (1002).

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