Embedded glass composite diaphragm earphone speaker

Abstract

The utility model provides a kind of embedded glass composite diaphragm earphone loudspeaker, including earphone cabin, the loudspeaker is installed in earphone cabin, the loudspeaker includes diaphragm and drive unit, the loudspeaker is fixedly connected by collar and mounting seat and is assembled in earphone cabin in embedded mode;The diaphragm is three-layer structure of composite hot-press forming, its outer layer is protective layer, middle is support layer, inner layer is balance layer.The utility model, by setting collar, the bottom ring of elastic material and the mounting seat with special-shaped mounting hole, diaphragm and drive unit are fixed by embedded mode, assembly and disassembly can be completed without special tool, both ensure that loudspeaker unit long-term vibration is not loose, and the maintenance difficulty of diaphragm cleaning, drive unit overhaul is greatly reduced, while avoiding the hard wear of component in dismounting process, prolong service life, and combined with composite diaphragm structure, inhibit diaphragm segmentation vibration, reduce harmonic distortion.

Description

Technical Field

[0001] This utility model relates to the field of headphone technology, specifically to an embedded glass composite diaphragm headphone speaker. Background Technology

[0002] The headphone speaker is the core component that enables headphones to convert electrical signals into sound waves that can be perceived by the human ear, directly determining the headphone's sound quality. Within the headphone speaker, the diaphragm is a crucial acoustic element, and its vibration characteristics directly affect the accuracy of sound reproduction. Currently, most mainstream headphone speaker diaphragms on the market use plastic diaphragms (such as PET and PP), ordinary fiber diaphragms (such as paper fiber and nylon fiber), or single metal diaphragms (such as pure aluminum and pure titanium). These types of diaphragms generally suffer from insufficient rigidity: when receiving audio signal vibrations, they are prone to significant deformation, especially under high-frequency signals or large-amplitude low-frequency signals, where different areas of the diaphragm are prone to segmented vibration. This large deformation problem directly leads to two major defects: first, significant sound quality distortion, with high-frequency details easily lost or blurred, and low frequencies prone to looseness and muddiness, failing to accurately reproduce the original audio information; second, the diaphragm is prone to fatigue wear under long-term large deformation, resulting in decreased vibration consistency, which not only shortens the diaphragm's lifespan but also causes the sound quality to continuously deteriorate with increasing use, making it difficult to meet users' long-term demand for high-fidelity sound quality. Utility Model Content

[0003] The purpose of this invention is to provide an embedded glass composite diaphragm headphone speaker to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: An embedded glass composite diaphragm headphone speaker, comprising: An earphone compartment, wherein a speaker is installed inside the earphone compartment, the speaker includes a diaphragm and a driver unit, the speaker is fixedly connected by a retaining ring and a mounting base and is assembled in an embedded manner inside the earphone compartment; The outer edge of the retaining ring engages with the edge of the protective cover elastic ring to protect the internal structure and facilitate earphone wearing; The diaphragm is a three-layer structure formed by composite hot pressing. Its outer layer is a protective layer, the middle layer is a support layer, and the inner layer is a balancing layer. The layered composite structure balances the rigidity and flexibility of the diaphragm and improves the acoustic output accuracy.

[0005] Preferably, a bottom ring is fixedly connected to the bottom of the retaining ring, and the connection between the retaining ring and the bottom ring forms an annular groove with radially reduced dimensions. The annular groove is adapted to engage with the snap-fit ​​edge at the top of the internal accommodating space of the headphone compartment. The retaining ring is located outside the headphone compartment, and the bottom ring extends into the headphone compartment. The outer diameter of the bottom ring is smaller than the outer diameter of the retaining ring. A mesh cover is integrally formed on the inner wall of the retaining ring, and the mesh cover has multiple sound-permeable holes for protecting the internal structure.

[0006] Preferably, a connecting rod is uniformly fixedly connected to the lower end face of the bottom ring along the circumferential direction, and an anti-detachment head is fixedly connected to the bottom of the connecting rod. The outer diameter of the anti-detachment head is larger than the outer diameter of the connecting rod. The upper end face of the mounting base is provided with mounting holes along the circumference. The mounting holes are irregular hole structures, consisting of a circular part through which the anti-detachment head passes and an arc-shaped groove for the connecting rod to slide. During assembly, after the anti-detachment head is inserted through the circular part, rotating the retaining ring can drive the bottom ring, connecting rod and anti-detachment head to rotate synchronously, so that the anti-detachment head slides along the arc-shaped groove to the limit position. Axial anti-detachment positioning is achieved by the dimensional difference between the anti-detachment head and the arc-shaped groove.

[0007] Preferably, the diaphragm is fixed by support member I and support member II. Support member I is a ring structure and is disposed on the top of the diaphragm. The top edge of the diaphragm is pressed and fixed to the inner side of support member I. Support member II is a straight plate structure. Its top is fixedly connected to the lower end face of support member I and is evenly distributed along the circumference and attached to the outer side of the horn-shaped diaphragm. The bottom of support member II is fixedly welded to the outer wall of the drive unit to form stable support and protection.

[0008] Preferably, the support member II has a corresponding through hole, the connecting rod passes through the through hole and is adapted to connect with the mounting hole on the mounting base, and the lower end face of the bottom ring and the upper end face of the mounting base form a clamping fit, clamping and fixing the support member II between the two, thereby realizing the axial positioning of the diaphragm and the drive unit.

[0009] Preferably, the outer side of the earphone housing is rotatably connected to the bottom of the arc-shaped headband via a hinge shaft, and the axial direction of the hinge shaft is perpendicular to the axial direction of the earphone housing, so as to realize the adjustment of the headband wearing angle.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention uses a retaining ring, a bottom ring made of elastic material, and a mounting base with irregularly shaped mounting holes to fix the diaphragm and drive unit in an embedded manner. Assembly and disassembly can be completed without special tools, which not only ensures that the speaker unit vibrates for a long time without loosening, but also greatly reduces the maintenance difficulty of cleaning the diaphragm and repairing the drive unit. At the same time, it avoids hard wear of components during disassembly and assembly, thus extending the service life.

[0011] This invention employs a three-layer composite hot-pressed diaphragm consisting of an outer protective layer, a middle glass fiber support layer, and an inner resin balancing layer. By combining this with a hot-pressing lamination process, gapless fusion between the layers is achieved. This not only utilizes the high rigidity of the glass material to suppress diaphragm segmentation vibration and reduce harmonic distortion, clearly restoring high-frequency details and low-frequency extension, but also solves the problem of the fragility of pure glass through the flexibility of the inner layer material, thus balancing sound fidelity and structural durability.

[0012] This utility model designs a dedicated support system consisting of support component I and support component II. The circumferential edge of the diaphragm is pressed and fixed to support component I, support component II is attached to the outer side of the diaphragm and the drive unit is welded thereon. Then, the bottom ring and the mounting base clamp support component II, so as to achieve axial and circumferential dual positioning of the diaphragm and the drive unit, ensuring acoustic vibration consistency and reducing sound quality deviation caused by vibration offset. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model; Figure 2 This is a three-dimensional schematic diagram of the protective cover and retaining ring separating from the headphone compartment. Figure 3 This is a three-dimensional schematic diagram of the diaphragm structure of this utility model; Figure 4 This is a three-dimensional schematic diagram of the retaining ring, diaphragm, and mounting base of this utility model; Figure 5 This is a three-dimensional schematic diagram of the retaining ring lower groove and connecting rod of this utility model; Figure 6 This is a three-dimensional schematic diagram of the insertion of the retaining ring connecting rod into the mounting base slot of this utility model; Figure 7 This is a three-dimensional schematic diagram of the glass composite diaphragm of this utility model.

[0014] In the diagram: 1. Earphone housing; 101. Snap-fit ​​edge; 2. Protective cover; 3. Headband; 4. Hinge shaft; 5. Snap ring; 501. Bottom ring; 502. Snap-fit ​​groove; 503. Connecting rod; 504. Anti-slip head; 6. Mesh cover; 7. Diaphragm; 8. Drive unit; 9. Support component I; 10. Support component II; 1001. Through hole; 11. Mounting base; 12. Mounting hole; 13. Protective layer; 14. Support layer; 15. Balance layer. Detailed Implementation

[0015] 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.

[0016] Example: Please see Figures 1 to 7 This utility model provides a technical solution: An embedded glass composite diaphragm headphone speaker includes a headphone housing 1, a diaphragm 7, and a driver unit 8.

[0017] The outer side of the earphone housing 1 is rotatably connected to the bottom of the curved headband 3 via a hinge shaft 4, and the axis of the hinge shaft 4 is perpendicular to the axis of the earphone housing 1. This design allows for free adjustment of the wearing angle of the headband 3, adapting to different users' head shapes and wearing habits, and improving comfort during long-term wear.

[0018] The outer edge of the retaining ring 5 engages with the edge of the elastic ring extending inward from the protective cover 2 to protect the internal structure and facilitate wearing of the headphones.

[0019] The headphone compartment 1 has an internal space that matches the size of the speaker. The speaker is fitted into the headphone compartment 1 in an embedded manner through the cooperation of the retaining ring 5 and the mounting base 11, achieving a gapless acoustic seal.

[0020] The bottom of the retaining ring 5 is fixedly connected to the bottom ring 501. The connection between the retaining ring 5 and the bottom ring 501 forms an annular retaining groove 502, which precisely fits and engages with the retaining edge 101 at the top of the internal accommodating space of the headphone compartment 1. The retaining ring 5 is located entirely outside the headphone compartment 1, while the bottom ring 501 extends into the headphone compartment 1. The outer diameter of the bottom ring 501 is smaller than the outer diameter of the retaining ring 5. Through the cooperation of the retaining groove 502 and the retaining edge 101, the axial positioning of the speaker unit within the headphone compartment 1 is achieved.

[0021] The inner wall of the retaining ring 5 is integrally formed with a mesh cover 6, which has multiple sound-permeable holes. Its function is dual: on the one hand, it guides sound waves to radiate efficiently, and on the other hand, it can physically block dust and foreign objects from entering the internal structure, protecting the diaphragm 7 and the drive unit 8 from damage.

[0022] The lower end face of the bottom ring 501 is uniformly connected to the connecting rod 503 along the circumference. The bottom of the connecting rod 503 is fixed with an anti-detachment head 504, and the outer diameter of the anti-detachment head 504 is larger than the outer diameter of the connecting rod 503. The upper end face of the mounting base 11 is provided with a corresponding irregular mounting hole 12 along the circumference. The hole is composed of a circular part for the anti-detachment head 504 to pass through and an arc-shaped groove for the connecting rod 503 to slide.

[0023] In this embodiment, during assembly, after the anti-drop head 504 is inserted into the mounting hole 12 through the circular part, rotating the retaining ring 5 can drive the bottom ring 501, connecting rod 503, and anti-drop head 504 to rotate synchronously, causing the anti-drop head 504 to slide along the arc groove to the limit position. Since the outer diameter of the anti-drop head 504 is larger than the width of the arc groove, axial anti-drop positioning is ultimately achieved through the size difference, ensuring that the speaker unit has no risk of loosening during long-term vibration and wearing. When disassembly and maintenance are required, simply rotating the retaining ring 5 in the opposite direction can drive the anti-drop head 504 to slide back to the circular part position along the arc groove. At this time, the anti-drop head 504 can be easily removed from the circular part, and the speaker unit can be separated from the headphone housing 1 without the need for special tools. The operation is convenient and efficient, greatly reducing the difficulty of subsequent maintenance work such as cleaning the diaphragm 7 and inspecting the drive unit 8. At the same time, this "rotary plug-in" structure can avoid hard wear on the retaining ring 5, mounting base 11, and connecting rod 503 during assembly and disassembly, effectively extending the service life of each component, and taking into account both structural stability and maintenance convenience.

[0024] It should be noted that the bottom ring 501 is preferably made of elastic silicone or elastic plastic material, which has the characteristic of being able to deform slightly. During assembly, it can be smoothly inserted into the headphone compartment 1 through elastic deformation. After being installed in place, it elastically returns to its original position, so that the locking edge 101 of the headphone compartment 1 can be accurately inserted into the annular slot 502, thereby achieving the limiting position and strengthening the stability of the assembly.

[0025] Furthermore, the bottom ring 501 and the retaining ring 5 are fixed with a high-strength adhesive to ensure reliable connection strength and eliminate the risk of separation under rotation and vibration conditions. The retaining ring 5 and the integrally molded mesh cover 6 are made of rigid materials, such as ABS engineering plastic or metal alloy, possessing sufficient structural strength to support the protective and sound-permeable functions of the mesh cover 6; the headphone housing 1 is also made of rigid materials (such as PC plastic or metal shell) to ensure the rigidity of the overall structure. The bottom of the mounting base 11 and the interior of the headphone housing 1 are integrally molded, and the resulting accommodating space precisely matches the bottom shape of the diaphragm 7 and the drive unit 8, allowing the diaphragm 7 and the bottom of the drive unit 8 to be placed stably within it.

[0026] In addition, the headphone compartment 1 also integrates structural components required for conventional headphones, such as a battery and a circuit board. The battery, circuit board and drive unit 8 are electrically connected through conductive contacts or wires, thereby forming a complete acoustic and power supply system to ensure the normal operation of the headphones. Since the battery and circuit board are conventional components in headphones and have been disclosed in existing related technologies, they will not be described in detail here.

[0027] The diaphragm 7, as the core acoustic component, adopts a three-layer composite hot-pressed structure and is rigidly fixed through a dedicated support system: the outer layer is a protective layer 13, preferably using a nano-coating or damping coating, which can reduce air friction noise and improve the temperature and humidity resistance of the diaphragm 7, extending its service life. The middle layer is a support layer 14, which is a glass fiber layer or an ultra-thin glass sheet (thickness 5-20μm), serving as the "rigid skeleton" of the diaphragm 7, ensuring uniform overall deformation during vibration and reducing distortion. The inner layer is a balancing layer 15, preferably a resin layer (such as PEEK, polyimide) or a metal foil layer (aluminum, titanium), which balances the high rigidity of the support layer 14, increases the flexibility of the diaphragm 7, and improves high-frequency response speed and damping characteristics (reducing vibration reverberation). The layers are composited through a hot-pressing lamination process: the resin layer melts and penetrates into the gaps between the glass fibers under high temperature and high pressure at 150-250℃, and after cooling, forms an integrated structure, ensuring no gaps between layers and strong vibration consistency.

[0028] Among them, the glass fiber layer in the middle layer, with its dense molecular structure and strong resistance to bending deformation, becomes the core of suppressing the segmented vibration of the diaphragm 7. Compared with the traditional plastic diaphragm 7, the high rigidity of the glass material can effectively resist the irregular deformation caused by uneven stress in local areas during vibration, ensuring that the diaphragm 7 vibrates synchronously along the axis as a whole, reducing harmonic distortion caused by local deformation from the root. This uniform vibration characteristic not only makes the transmission of high-frequency signals more accurate and clearly reproduces subtle acoustic details such as instrument overtones and sibilance of human voices, but also prevents the diaphragm 7 from being overstretched or contracted during low-frequency vibration, ensuring the depth of low-frequency extension while reducing muddiness and improving the layering and fidelity of the sound quality. Meanwhile, although glass itself is relatively brittle, through the composite design with the inner resin, the flexibility of the resin or the ductility of the metal foil can form a buffer protection structure. When the diaphragm 7 is subjected to slight impact or long-term vibration, it absorbs stress. In addition, the hot-pressing lamination process allows each layer to be tightly penetrated and fused together. This not only retains the advantages of glass in improving acoustic performance, but also solves the problem of pure glass being easily broken. This ensures that the diaphragm 7 is not easily damaged during daily use or assembly, thus balancing sound quality performance and structural durability.

[0029] The diaphragm 7 is rigidly fixed by support member I 9 and support member II 10: support member I 9 is a circular ring structure, located on top of the diaphragm 7, and the top edge of the diaphragm 7 is pressed and fixed to the inner side of support member I 9 to achieve circumferential positioning of the diaphragm 7. Support member II 10 is a straight plate structure, with its top fixedly connected to the lower end face of support member I 9, and is evenly distributed along the circumference and tightly fitted to the outer side of the trumpet-shaped diaphragm 7; the bottom of support member II 10 is fixedly welded to the outer wall of the drive unit 8, forming a rigid connecting chain that greatly improves structural stability.

[0030] In this embodiment, a through hole 1001 is provided on the support member II 10, and the connecting rod 503 passes through the through hole 1001 and is adapted to connect with the irregular hole on the mounting base 11; at the same time, the lower end face of the bottom ring 501 and the upper end face of the mounting base 11 form a clamping fit, clamping and fixing the support member II 10 between the two, and finally realizing the axial and circumferential dual positioning of the diaphragm 7 and the drive unit 8, ensuring the consistency of acoustic vibration.

[0031] It should be noted that the drive unit 8, as the core power source for the speaker's electroacoustic conversion, contains a conventional magnetic circuit system and transmission components found in the headphone speaker field. Specifically, it includes a magnetic circuit structure composed of a permanent magnet, an upper magnetic plate, and a lower magnetic plate, as well as a voice coil wound around a voice coil frame and a centering support (spider) to maintain the axial stability of the voice coil. The working principle of these components is as follows: the permanent magnet and the magnetic plate work together to form a uniform and high-intensity magnetic field. When an external audio signal is transmitted to the voice coil through a wire, the energized voice coil experiences a high-frequency reciprocating vibration under the influence of the Ampere force in the magnetic field. The centering support, while ensuring the voice coil does not shift, provides a stable restoring force. Ultimately, the voice coil drives the rigidly connected diaphragm 7 to vibrate synchronously, converting the electrical signal into an acoustic signal perceptible to the human ear, thus enabling the speaker to produce sound. The internal structure of the drive unit 8 described above is a conventional and mature technology in the headphone speaker field, and therefore will not be elaborated upon further here.

[0032] In use, the support system equipped with the diaphragm 7 and the drive unit 8 is first placed into the integrally formed mounting base 11 inside the headphone housing 1, so that the bottom of the diaphragm 7 and the drive unit 8 fits into the receiving space of the mounting base 11; then, holding the retaining ring 5, the bottom ring 501 is aligned with the entrance of the headphone housing 1, and the elastic material of the bottom ring 501 is used to gently press it to make the bottom ring 501 snap into the headphone housing 1. After the retaining edge 101 of the headphone housing 1 is inserted into the annular groove 502 between the retaining ring 5 and the bottom ring 501, the bottom ring 501 elastically returns to its original position; then, the bottom connecting rod 503 of the retaining ring 5 is aligned with the through hole 1001 on the support member II 10. Insert the rod until the anti-slip head 504 at the bottom of the connecting rod 503 is aligned with the circular part of the irregular mounting hole 12 on the mounting base 11 and inserted. Rotate the retaining ring 5 clockwise to drive the bottom ring 501, connecting rod 503 and anti-slip head 504 to rotate synchronously, so that the anti-slip head 504 slides along the arc groove to the limit position. The axial anti-slip is achieved by the size difference between the anti-slip head 504 and the arc groove. At the same time, the lower end face of the bottom ring 501 clamps the support member II 10 with the upper end face of the mounting base 11, completing the dual positioning of the diaphragm 7 and the drive unit 8. Finally, according to the wearing requirements, adjust the angle of the arc headband 3 through the hinge shaft 4 on the outside of the headphone compartment 1. After adapting to the head shape, it can be worn and used.

[0033] All other parts of this utility model not described herein are the same as existing technologies, or are known technologies, or can be implemented using existing technologies, and will not be described in detail here.

[0034] 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. An embedded glass composite diaphragm headphone speaker, characterized in that, include: The headphone compartment (1) is equipped with a speaker, which includes a diaphragm (7) and a drive unit (8). The speaker is fixedly connected to the headphone compartment (1) by a retaining ring (5) and a mounting base (11) and is embedded in the headphone compartment (1). The outer edge of the retaining ring (5) engages with the edge of the elastic ring of the protective cover (2) to protect the internal structure and facilitate the wearing of the headphones; The diaphragm (7) is a three-layer structure formed by composite hot pressing. Its outer layer is a protective layer (13), the middle layer is a support layer (14), and the inner layer is a balancing layer (15). The rigidity and flexibility of the diaphragm (7) are balanced by the layered composite structure, thereby improving the acoustic output accuracy.

2. The embedded glass composite diaphragm headphone speaker according to claim 1, characterized in that: The bottom of the retaining ring (5) is fixedly connected to a bottom ring (501). The connection between the retaining ring (5) and the bottom ring (501) forms a radially shrinking annular groove (502). The annular groove (502) is adapted to and snapped into the snap-fit ​​edge (101) at the top of the internal accommodating space of the headphone compartment (1). The retaining ring (5) is located outside the headphone compartment (1), and the bottom ring (501) extends into the headphone compartment (1). The outer diameter of the bottom ring (501) is smaller than the outer diameter of the retaining ring (5). The inner wall of the retaining ring (5) is integrally formed with a mesh cover (6), and the mesh cover (6) has sound-permeable holes.

3. The embedded glass composite diaphragm headphone speaker according to claim 2, characterized in that: The lower end face of the bottom ring (501) is uniformly fixedly connected with a connecting rod (503) along the circumferential direction. The bottom of the connecting rod (503) is fixedly connected with an anti-detachment head (504). The outer diameter of the anti-detachment head (504) is larger than the outer diameter of the connecting rod (503). The upper end face of the mounting base (11) is provided with a mounting hole (12) along the circumference. The mounting hole (12) is an irregular hole structure, which is composed of a circular part through which the anti-detachment head (504) passes and an arc groove through which the connecting rod (503) slides. Axial anti-detachment positioning is achieved by the size difference between the anti-detachment head (504) and the arc groove.

4. The embedded glass composite diaphragm headphone speaker according to claim 3, characterized in that: The diaphragm (7) is fixed by support member I (9) and support member II (10). Support member I (9) is a ring structure and is set on the top of the diaphragm (7). The top edge of the diaphragm (7) is pressed and fixed to the inner side of support member I (9). Support member II (10) is a straight plate structure. Its top is fixedly connected to the lower end face of support member I (9) and is evenly distributed along the circumference and attached to the outer side of the horn-shaped diaphragm (7). The bottom of support member II (10) is fixedly welded to the outer wall of the drive unit (8).

5. An embedded glass composite diaphragm headphone speaker according to claim 4, characterized in that: The support member II (10) has a corresponding through hole (1001). The connecting rod (503) passes through the through hole (1001) and is adapted to connect with the mounting hole (12) on the mounting base (11). The lower end face of the bottom ring (501) and the upper end face of the mounting base (11) form a clamping fit, clamping and fixing the support member II (10) between the two.

6. The embedded glass composite diaphragm headphone speaker according to claim 1, characterized in that: The outer side of the earphone compartment (1) is rotatably connected to the bottom of the arc-shaped headband (3) via a hinge shaft (4).

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