Improved speaker cone structure

Abstract

This invention provides an improved speaker cone structure that utilizes the differences in the physical properties of different metal interfaces to generate reflection or scattering effects on vibration waves, thereby effectively eliminating energy transfer and improving sound quality. [Solution] This invention provides an improved structure for a speaker cone 10 laid between an acoustic device and a support. The speaker cone has a top contact portion 11 facing the acoustic device and a bottom support portion 12 facing the support. At least three layers of laminated body 13 are provided between the top contact portion and the bottom support portion. The at least three layers of laminated body are composed of at least two types of metal members of different densities that are stacked in a crisscross pattern, thereby forming a composite metal body with vibration isolation properties for the speaker cone.

Description

Technical Field

[0001] The present invention relates to an improved structure of a speaker cone, and particularly to a structure of a speaker cone that is laid between an acoustic device and a support and blocks vibration transmission by arranging multi-layer composite materials in a cross pattern to improve sound quality.

Background Art

[0002] Generally, when an acoustic device outputs sound, it often involves physical vibrations. Without an appropriate anti-vibration mechanism, the vibrations are transmitted to a support (e.g., the ground, a housing, or a tabletop) via the support structure, causing resonance in the surrounding environment. This resonance not only generates noise but may also feedback to the acoustic device and reduce the clarity of the sound.

[0003] Therefore, in the current technology, a speaker cone is installed at the bottom of the acoustic device to remove vibrations through conduction and absorption at the contact point. Currently, commercially available speaker cone materials include metals, ceramics, rubber, etc. Among them, metal materials have excellent solidity and high-frequency extension, but metal speaker cones are often integrally formed of a single material.

[0004] Since the internal structure of a single material is homogeneous and the vibration transmission effect is extremely good, most of the vibration energy still travels downward along the cone to the support, and only a small amount of vibration can be removed, making it difficult to completely eliminate noise or suppress resonance.

[0005] Therefore, how to design a structure of a speaker cone that effectively blocks the vibration transmission path, eliminates resonance, and substantially improves sound quality has become an urgent issue in the related field.

Summary of the Invention

Problems to be Solved by the Invention

[0006] This invention aims to provide an improved speaker cone structure by forming a composite metal body with the characteristic of blocking vibration transmission by overlapping metal members of different densities in a crisscross pattern. This effectively absorbs and eliminates vibrations, prevents resonance, and achieves an improvement in sound quality. [Means for solving the problem]

[0007] This invention provides an improved structure for a speaker cone laid between an acoustic device and a support. The speaker cone has a top contact portion facing the acoustic device and a bottom support portion facing the support, and at least three layers of laminate are provided between the top contact portion and the bottom support portion, and the at least three layers of laminate are composed of at least two types of metal members of different densities that are overlapped in a cross pattern, thereby forming a composite metal body for the speaker cone. [Effects of the Invention]

[0008] The improved speaker cone structure of this invention comprises at least three laminated layers, each composed of at least two metal members of different densities arranged in a cross pattern, thereby forming a composite metal body with heterogeneous interfaces. When this speaker cone is used by laying it between an acoustic device and a support, the difference in physical properties of the different metal interfaces is utilized to create a reflection or scattering effect on vibration waves, effectively disrupting the continuity of vibration conduction, eliminating most of the energy transmission, preventing the generation of environmental resonance or interference noise, and thereby greatly optimizing the clarity of the sound field and the sound quality expression of the acoustic device. [Brief explanation of the drawing]

[0009] [Figure 1] Figure 1 is a three-dimensional external view of the first embodiment of the present invention. [Figure 2] Figure 2 is a cross-sectional view of the first embodiment of the present invention. [Figure 3] Figure 3 is a schematic diagram showing the usage state of the present invention. [Figure 4] Figure 4 is a three-dimensional external view of the second embodiment of the present invention. [Figure 5]Figure 5 is a cross-sectional view of a second embodiment of the present invention. [Figure 6] Figure 6 is a cross-sectional view of a third embodiment of the present invention. Forms for implementing a utility model

[0010] We will provide further explanation with reference to diagrams of better embodiments of the present invention so that those skilled in the art can implement the present invention according to the description herein.

[0011] First, the support structure at the bottom of typical audio equipment 20 (speakers, amplifiers, players, etc.) can be broadly divided into two types. The first is a conical protrusion 21 pre-installed at the bottom, and the second is a simple planar structure. This invention provides multiple embodiments to address the different installation requirements described above and achieve the optimal vibration suppression effect.

[0012] Figure 1-3 shows a first embodiment of the improved structure of the speaker cone of the present invention. The speaker cone 10 of this embodiment is laid between an audio device 20 and a support 30 (for example, on the ground, a housing, or a desk). The speaker cone 10 has a top contact portion 11 facing the audio device 20 and a bottom support portion 12 facing the support 30, and at least three layers of laminated material 13 are provided between the top contact portion 11 and the bottom support portion 12.

[0013] In the first embodiment, the body of the speaker cone 10 is cylindrical, the top contact portion 11 corresponds to the top surface of the cylindrical body, and a conical groove 111 is provided in the middle of the top contact portion 11. This structural design is particularly suitable for an acoustic device 20 (as shown in Figure 3) that has a conical protrusion 21 at its bottom. By fitting the conical protrusion 21 into the conical groove 111, it is possible not only to precisely position and stably support the acoustic device 20, but also to achieve an excellent vibration isolation effect at the contact surface. The laminate 13, consisting of at least three layers, is composed of at least two types of metal members of different densities that are overlapped in a cross pattern, thereby forming a composite metal body of the speaker cone 10 with vibration isolation characteristics.

[0014] As shown in Figures 1 and 2, the composite metal body is a single component in the first embodiment. The bonding method of the laminate 13 can be achieved by utilizing the difference in melting points of different metal materials to melt a metal member with a lower melting point and fill it between two layers of metal members with higher melting points for bonding, or by directly bonding and fixing at least three layers of laminate 13 to each other using a high-strength adhesive. When vibration energy is generated in the acoustic device 20 and transmitted downward, clear reflection, scattering, and phase cancellation occur when the vibration waves pass through metal interfaces of different densities, thereby effectively attenuating the energy, preventing vibration from being transmitted to the support 30, and ensuring the purity of the sound quality.

[0015] Figure 4-5 shows a second embodiment of the present invention. In this embodiment, the composite metal body of the speaker cone 10 is conical in shape overall, and its apical contact portion 11 is located at the tip of this cone. Such a structure is particularly suitable for an acoustic device 20 whose bottom is "planar," and by forming a minimized "point contact" surface between the pointed apical contact portion 11 and the bottom of the acoustic device 20, the vibration transmission area can be reduced, and in combination with the multilayer cross-laminated laminated structure 13 inside, a very good energy filtering function can be achieved.

[0016] Figure 6 shows a third embodiment of the present invention. This embodiment is also suitable for an audio device 20 whose bottom is "planar," and the speaker cone 10 is designed to combine multiple parts, with a first component 10A and a second component 10B stacked on top of each other. The bottom of the first component 10A is provided with a conical apex 101A, and the top of the second component 10B is provided with a corresponding apex groove 101B, thereby enabling the two to fit together precisely. In this embodiment, the top surface of the first component 10A corresponds to the apex contact portion 11A, and the bottom surface of the second component 10B corresponds to the bottom support portion 12B.

[0017] In a structure combining two components, laminates 13A and 13B, respectively, are provided inside the first component 10A and the second component 10B, respectively, which are constructed by intersecting metal members of different densities. This effect of stacking multilayer composite members, combined with the mating surface between the apex center 101A and the apex groove 101B, enables the provision of a vibration dissipation structure with deeper layers and multiple-stage frequency selection characteristics.

[0018] The structure of the specific embodiment described above achieves the following beneficial effects.

[0019] In the improved speaker cone structure of this invention, at least three layers of laminated body 13 are provided, each composed of at least two types of metal members of different densities arranged in a cross pattern, thereby forming a composite metal body with heterogeneous interfaces. When this speaker cone is laid between an acoustic device 20 and a support 30, the difference in physical properties of the different metal interfaces is utilized to create a reflection or scattering effect on vibration waves, effectively disrupting the continuity of vibration conduction, eliminating most of the energy transmission, preventing the generation of environmental resonance or interference noise, and thereby greatly optimizing the clarity of the sound field and the sound quality expression of the acoustic device. [Explanation of symbols]

[0020] 10-speaker cone; 10A-first component; 10B-second component; 101A-apex center; 101B-apex groove; 11, 11A-top contact portion; 111-conical concave groove; 12, 12B-bottom support portion; 13, 13A, 13B-laminated body; 20-acoustic instrument;

Claims

1. An improved speaker cone structure in which the speaker cone (10) is laid between an acoustic device (20) and a support (30), The speaker cone (10) has a top contact portion (11) facing the sound device (20) and a bottom support portion (12) facing the support body (30), and at least three layers of laminated material (13) are provided between the top contact portion (11) and the bottom support portion (12), and at least three layers of laminated material (13) are composed of at least two types of metal members of different densities that are overlapped in a cross pattern, thereby forming a composite metal body of the speaker cone (10). An improved speaker cone structure characterized by the following features.

2. The speaker cone (10) is cylindrical, the top contact portion (11) is the top surface of the cylindrical body, and a conical groove (111) is provided in the middle of the top surface, thereby allowing the conical protrusion (21) at the bottom of the sound device (20) to fit into and contact the conical groove (111). The improved speaker cone structure described in feature 1.

3. The speaker cone (10) is a cone, and the apical contact portion (11) is located at the apical tip of the cone and forms point contact with the planar bottom of the sound device (20). The improved speaker cone structure described in feature 1.

4. The composite metal body is assembled by stacking a first component (10A) and a second component (10B) vertically, with a conical apex (101A) provided at the bottom of the first component (10A), and the top of the second component (10B) having an apex groove (101B) corresponding to the apex (101A), thereby forming the first component (10A) and the second component (10B) through the fitting of the apex (101A) and the apex groove (101B). The improved speaker cone structure described in feature 1.

5. The laminates (13A, 13B) are provided inside the first component (10A) and the second component (10B), respectively. The improved speaker cone structure described in feature 4.

6. The metal members of each layer of the laminate (13) are bonded and fixed together after heating and melting by utilizing the difference in their melting points. The improved speaker cone structure described in feature 1.

7. The improved speaker cone structure according to claim 1, characterized in that the metal members of each layer of the laminate (13) are bonded and fixed to each other using an adhesive.

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