Earphone diaphragm with horn waveguide structure

Abstract

An earphone diaphragm with a horn waveguide structure comprises a diaphragm body and a ring-shaped waveguide structure arranged in the middle of the upper surface of the diaphragm body; the diaphragm body comprises a center part and a suspension edge part arranged at the outer periphery of the diaphragm center part; the waveguide structure comprises a waveguide part and a fitting part arranged inside the waveguide part; the bottom surface of the fitting part is fitted on the outer surface of the center part; and the waveguide part is arranged in a horn shape gradually extending upwards and to the outside of the upper surface from the bottom. The horn waveguide structure significantly improves the transmission efficiency and clarity of sound, and reduces the distortion of sound. The horn diaphragm provides good resonance effect, makes the sound fuller, and improves the sense of hierarchy and stereoscopic effect. The acoustic performance is optimized, the sound energy conversion efficiency of diaphragm vibration is improved, the practicality is strong, and the horn diaphragm has strong popularization significance.

Description

Technical Field

[0001] This utility model relates to a diaphragm, and more particularly to an earphone diaphragm with a horn waveguide structure. Background Technology

[0002] The headphone diaphragm is a key component in headphone sound production. It receives and interprets electrical signals, generating corresponding vibrations to transmit sound waves to the air before they enter the ear. Therefore, the performance of the headphone diaphragm directly affects sound quality. Traditional headphone diaphragms typically employ a planar or simple curved surface design. However, this traditional structure suffers from drawbacks such as limited sound wave propagation efficiency and high sound distortion. Utility Model Content

[0003] Therefore, it is necessary to provide an earphone diaphragm with a horn waveguide structure to address the shortcomings of existing technologies.

[0004] A headphone diaphragm with a horn waveguide structure includes a diaphragm body and an annular waveguide structure. The waveguide structure is disposed in the middle of the upper surface of the diaphragm body. The diaphragm body includes a central part and a suspension part disposed on the outer periphery of the central part. The waveguide structure includes a waveguide part and a bonding part disposed on the inner side of the waveguide part. The bottom surface of the bonding part is bonded to the outer surface of the central part. The waveguide part is arranged in a horn shape that gradually extends outward and upward from the bottom.

[0005] Furthermore, the inner center of the fitting part is hollowed out.

[0006] Furthermore, the edge line of the hollow inner end of the fitting part is set in a ring-shaped wavy line.

[0007] Furthermore, it also includes a support frame disposed on the outer periphery of the cantilever portion.

[0008] Furthermore, the outer periphery of the suspended edge is provided with an annular outer edge, and the support frame is attached to the top surface of the outer edge.

[0009] Furthermore, the inner side of the suspended edge is provided with a hollow hole, and the periphery of the hollow hole is provided with an annular inner edge, and the outer bottom surface of the central part is attached to the top surface of the annular inner edge.

[0010] Furthermore, the innermost side of the inner edge is provided with an upwardly extending limiting portion, and the outer peripheral edge of the center portion is embedded between the limiting portion, the inner edge portion, and the overhang portion.

[0011] Furthermore, the diaphragm body is designed to gradually decrease in thickness from the inside out.

[0012] In summary, the waveguide horn structure of this invention, when applied to headphone diaphragms, significantly improves sound transmission efficiency and clarity through specific geometric design, while reducing sound distortion. Furthermore, the horn diaphragm provides excellent resonance, resulting in a fuller sound and enhanced layering and stereo imaging. It optimizes acoustic performance, improves the sound energy conversion efficiency of diaphragm vibration, and possesses strong practicality and significant potential for widespread application. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the headphone diaphragm with a horn waveguide structure according to this utility model;

[0014] Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure of the diaphragm;

[0015] Figure 3 for Figure 2 A magnified structural diagram of the structure;

[0016] Figure 4 for Figure 1 A schematic diagram of the decomposition process;

[0017] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure;

[0018] Figure 6 This is a modal test comparison diagram of one of the traditional diaphragms and one of the diaphragm products of this utility model. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0020] like Figures 1 to 5 As shown, this utility model provides an earphone diaphragm with a horn waveguide structure. The earphone diaphragm with the horn waveguide structure includes a diaphragm body 10, a waveguide structure 20 and a support frame 30. The support frame 30 is disposed on the outer periphery of the diaphragm body 10, and the waveguide structure 20 is disposed in the middle of the upper surface of the diaphragm body 10.

[0021] The diaphragm body 10 includes a central portion 11 and a suspension portion 12, the suspension portion 12 being disposed on the outer periphery of the central portion 11. Specifically, the outer periphery of the suspension portion 12 is provided with an annular outer edge portion 121, and the support frame 30 is attached to the top surface of the outer edge portion 121. The inner side of the suspension portion 12 is provided with a perforated hole, and the periphery of the perforated hole is provided with an annular inner edge portion 122.

[0022] The diaphragm center portion 11 includes a dome 111 and a connecting portion disposed on the outer periphery of the dome 111. The connecting portion includes an annular bottom edge 112 and a side edge 113. The inner end of the bottom edge 112 is connected to the outer periphery of the dome 111, and the outer end is connected to the inner end of the side edge 113. The side edge 113 is arranged in a trumpet shape extending upwards from the inside to the outside, and its inclination angle is consistent with the inclination angle of the corresponding position of the suspension portion 12. The bottom surface of the bottom edge 112 is attached to the top surface of the inner edge portion 122, and the side edge 113 is attached to the protruding inner surface of the suspension portion 12. Further, the innermost side of the inner edge portion 122 is provided with an upwardly extending limiting portion 1221. The limiting portion 1221 and the concave bottom surface of the dome 111 form an in-between structure, thereby making the installation between the suspension portion 12 and the diaphragm center portion 11 more stable and less prone to loosening.

[0023] The waveguide structure 20 includes a waveguide portion 21 and a bonding portion 22 disposed inside the waveguide portion 21. The bottom surface of the bonding portion 22 is bonded to the top surface of the dome 111 and the connecting portion. The waveguide portion 21 is arranged in a parabolic horn shape, gradually extending outward and upward from the bottom, and its outer surface is spaced apart from the suspension portion 12. In addition, the inner middle part of the bonding portion 22 is hollowed out. Preferably, its inner edge is arranged in a ring-shaped wave pattern. This shape design can reduce the amplitude of the peaks and troughs on the frequency response curve, making the response smoother. Of course, it is understood that the inner edge can be set to other shapes as needed, and is not limited here.

[0024] Furthermore, in this embodiment, the diaphragm body 10 is made of polyethylene terephthalate (PET) composite aluminum-plated layer, and its thickness gradually decreases from the inside to the outside, thereby reducing the segmentation vibration caused by insufficient or excessive edge stiffness of the diaphragm and reducing mid-to-high frequency distortion.

[0025] During operation, the diaphragm vibrates under the drive of the voice coil, optimizing the sound wave propagation path through combination with a horn structure. The horn structure guides the sound waves generated by the diaphragm to a wider area, while simultaneously enhancing the directionality and sound pressure level (SPL) of the sound waves through geometric expansion. The sound waves exit from the center of the diaphragm and enter the horn-shaped waveguide channel. Through the gradually expanding geometry of the horn, the impedance matching of the sound wave propagation is improved. The output SPL is increased by approximately 10%-15% compared to a conventional diaphragm, and distortion is reduced by approximately 8%.

[0026] like Figure 6This image compares the modal testing of a traditional diaphragm with that of the diaphragm product of this invention. The main advantages of this diaphragm lie in its increased sound pressure level (SPL) and extended high frequencies. At a test frequency of 1 kHz, the SPL is increased to 108 dB, a 12% improvement compared to the 96 dB of a conventional diaphragm. The frequency response covers 20 Hz to 20 kHz. Based on the test results, the horn headphone diaphragm of this invention exhibits advantages such as higher sensitivity, superior frequency response characteristics, clearer sound, higher efficiency, and lower distortion.

[0027] In summary, the waveguide horn structure of this invention, when applied to headphone diaphragms, significantly improves sound transmission efficiency and clarity through specific geometric design, while reducing sound distortion. Furthermore, the horn diaphragm provides excellent resonance, resulting in a fuller sound and enhanced layering and stereo imaging. It optimizes acoustic performance, improves the sound energy conversion efficiency of diaphragm vibration, and possesses strong practicality and significant potential for widespread application.

[0028] The above-described embodiments are merely one implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A headphone diaphragm with a horn waveguide structure, characterized in that: The device includes a diaphragm body and a ring-shaped waveguide structure. The waveguide structure is disposed in the middle of the upper surface of the diaphragm body. The diaphragm body includes a central part and a suspension part disposed on the outer periphery of the central part. The waveguide structure includes a waveguide part and a bonding part disposed on the inner side of the waveguide part. The bottom surface of the bonding part is bonded to the outer surface of the central part. The waveguide part is arranged in a horn shape that gradually extends outward and upward from the bottom.

2. The headphone diaphragm with a horn waveguide structure as described in claim 1, characterized in that: The inner center of the fitting part is hollowed out.

3. The headphone diaphragm with a horn waveguide structure as described in claim 2, characterized in that: The edge line of the hollow inner end of the fitting part is set in a ring-shaped wave pattern.

4. The headphone diaphragm with a horn waveguide structure as described in claim 1, characterized in that: It also includes a support frame, which is disposed on the outer periphery of the overhang portion.

5. The headphone diaphragm with a horn waveguide structure as described in claim 4, characterized in that: The outer periphery of the suspended edge is provided with an annular outer edge, and the support frame is attached to the top surface of the outer edge.

6. The headphone diaphragm with a horn waveguide structure as described in claim 5, characterized in that: The inner side of the suspended edge is provided with a hollow hole, and the periphery of the hollow hole is provided with an annular inner edge. The outer bottom surface of the center part is attached to the top surface of the annular inner edge.

7. The headphone diaphragm with a horn waveguide structure as described in claim 6, characterized in that... The innermost side of the inner edge is provided with an upwardly extending limiting part, and the outer peripheral edge of the center part is embedded between the limiting part, the inner edge part and the overhanging edge part.

8. The headphone diaphragm with a horn waveguide structure as described in claim 1, characterized in that... The diaphragm body is designed to gradually decrease in thickness from the inside out.

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