A novel type of speaker paper cone

Abstract

A novel speaker cone includes a cone body and a connecting portion. The cone body's thickness in its axial cross-section gradually decreases from the end with the smaller opening diameter to the end with the larger opening diameter. The cone body includes a first surface layer, a second surface layer, and an intermediate layer. The connecting portion is located at the end of the cone body with the smaller opening diameter, which is the free end of the cone body bent away from the main body. Compared with existing technologies, this invention, by adopting a gradually thinning shape for the cone body, allows for linear energy transmission, reduces sound distortion, and improves sound quality. Furthermore, by using a composite structure, with the first and second surface layers wrapping around both sides of the intermediate layer, the cone body simultaneously possesses waterproof, wear-resistant, and high-temperature resistant properties. The honeycomb structure of the intermediate layer further enhances structural strength and ensures product performance.

Description

Technical Field

[0001] This utility model relates to the field of speaker equipment technology, and in particular to a speaker cone with a novel structure. Background Technology

[0002] A loudspeaker produces sound by generating sound waves through the piston-like motion of a diaphragm. This piston-like motion is created by the interaction between a voice coil and a driving magnet. When sound passes through the voice coil as an electric current, it generates a changing electromagnetic field based on the strength and frequency of the current. The direction of the magnetic field is determined by Faraday's right-hand law. The magnetism of the voice coil constantly changes with the current, interacting with the permanent magnet to produce vibrations. This vibration drives the diaphragm in a piston-like motion, thus producing sounds of different frequencies and intensities.

[0003] The cone, also known as a paper cone, is the core component of a loudspeaker's vibration system. Its function is to convert the mechanical vibration of the voice coil into air vibration, thereby generating sound waves. The cone typically works in conjunction with components such as the voice coil and frame to form a complete acoustic system. Cone materials vary, and different materials have a significant impact on sound quality, durability, and cost.

[0004] Traditional paper cones are made primarily of natural plant fibers, such as cotton and wood pulp, and the diaphragm is manufactured using a special process. These materials are low in cost and have moderate rigidity, making them suitable for mid-to-low frequency sound performance, but they are easily deformed by temperature and humidity. Summary of the Invention

[0005] In view of this, the present invention provides a horn-shaped paper cone with a novel structure to solve the above-mentioned technical problems.

[0006] A novel horn-shaped paper cone includes a cone body and a connecting portion located at one end of the cone body. The cone body has a horn-shaped structure with openings at both ends, one opening having a larger diameter than the other. The thickness of the cone body in axial cross-section gradually decreases from the end with the smaller opening diameter to the end with the larger opening diameter. The cone body includes an inner first surface layer, an outer second surface layer, and an intermediate layer between the first and second surface layers. The connecting portion is located at the end of the cone body with the smaller opening diameter, which is the free end of the cone body bent away from the main body.

[0007] Furthermore, both the first and second surface layers are made of twill fiberglass cloth with a weight of 200g / ㎡.

[0008] Furthermore, the intermediate layer is made of 2 mm thick foamed felt.

[0009] Furthermore, the foamed felt is made of one of the following: polyethylene foamed felt, asbestos foamed felt, or polyurethane foamed felt.

[0010] Furthermore, the intermediate layer adopts a honeycomb structure.

[0011] Furthermore, the connecting part extends in the axial direction of the opening of the paper basin body, forming a mating surface perpendicular to the central axis.

[0012] Compared with existing technologies, the speaker cone with a novel structure provided by this utility model adopts a progressively thinner shape for the cone body, thereby enabling linear energy transmission, reducing sound distortion, and resulting in better sound quality. Simultaneously, by employing a composite structure, with the first and second outer layers wrapping around both sides of the middle layer, the cone body simultaneously possesses waterproof, wear-resistant, and high-temperature resistant properties. Furthermore, the honeycomb structure of the middle layer further enhances structural strength, ensuring product performance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a novel horn-shaped paper cone provided by this utility model.

[0014] Figure 2 for Figure 1 A schematic diagram of the horn cone with a novel structure from another perspective.

[0015] Figure 3 for Figure 1 A schematic diagram of the axial structure of a horn cone with a novel structure.

[0016] Figure 4 for Figure 1 A schematic diagram of the layered structure of the main body of the speaker cone with a novel structure. Detailed Implementation

[0017] The specific embodiments of this utility model are described in further detail below. It should be understood that the description of the embodiments of this utility model herein is not intended to limit the scope of protection of this utility model.

[0018] like Figures 1 to 4 The diagram shown is a structural schematic of a speaker cone with a novel structure provided by this utility model. The speaker cone with the novel structure includes a cone body 10 and a connecting portion 20 located at one end of the cone body 10. It is conceivable that the speaker cone with the novel structure also includes other functional modules such as a voice coil, a spider, etc., which are technologies known to those skilled in the art and will not be described in detail here.

[0019] The paper cone body 10 is a trumpet-shaped structure, meaning it is open at both ends, with the diameter of one opening being larger than the diameter of the other. The thickness of the paper cone body 10 in its axial cross-section gradually decreases from the end with the smaller opening diameter to the end with the larger opening diameter, thus allowing energy to be transmitted linearly and reducing sound distortion. Linearity of sound refers to the fact that sound signals satisfy the superposition principle during transmission and processing; that is, when multiple signals are superimposed, the total effect is equal to the sum of the effects of each signal acting individually, without distortion.

[0020] The paper basin body 10 includes a first surface layer 11 located on the inner side, a second surface layer 12 located on the outer side, and an intermediate layer 13 located between the first surface layer 11 and the second surface layer 12.

[0021] Both the first surface layer 11 and the second surface layer 12 are made of twill fiberglass cloth with a weight of 200g / ㎡. Twill fiberglass cloth is a fabric woven from glass fibers. Its weave pattern presents a diagonal cross-twill characteristic, which has good waterproof performance, high strength (tensile strength ≥1000MPa) and flexibility, excellent high temperature resistance and corrosion resistance, and is suitable for extreme environments. Its core advantages include lightweight (density 2.2g / cm³) and low coefficient of thermal expansion, which can effectively improve the structural stability of the material.

[0022] The intermediate layer 13 can be made of 2 mm thick foamed felt, including but not limited to polyethylene foamed felt, asbestos foamed felt, polyurethane foamed felt, etc. Foamed felt is a product that forms a large number of independent air bubbles inside the material through a special process. It is a porous material with low density, heat insulation, corrosion resistance and cushioning properties, and is mainly used in building insulation, packaging cushioning and other fields. In this embodiment, the intermediate layer 13 adopts a honeycomb structure to have stronger structural strength, and the paper basin body 10 is not easily bent or deformed under external force.

[0023] The connecting part 20 is located at the end of the cone body 10 with a smaller opening diameter, which is the free end of the cone body 10 that is bent away from the main body. The extending direction of the connecting part 20 is the axial direction of the opening of the cone body 10, thereby forming a mating surface perpendicular to the central axis, which facilitates the mating and bonding of the cone 30 to the outer surface of the voice coil.

[0024] Compared with existing technologies, the speaker cone with a novel structure provided by this utility model adopts a progressively thinner shape for the cone body 10, thereby enabling linear energy transmission, reducing sound distortion, and resulting in better sound quality. Simultaneously, by employing a composite structure, with the first surface layer 11 and the second surface layer 12 wrapping around both sides of the intermediate layer 13, the cone body 10 simultaneously possesses waterproof, wear-resistant, and high-temperature resistant properties. Furthermore, the intermediate layer 13 adopts a honeycomb structure, further enhancing structural strength and ensuring product performance.

[0025] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. A new type of horn paper cone, characterized in that: The novel horn-shaped paper cone includes a paper cone body and a connecting portion located at one end of the paper cone body. The paper cone body is a horn-shaped structure with openings at both ends, and the diameter of one opening is larger than the diameter of the other opening. The thickness of the paper cone body in the axial section gradually decreases from the end with the smaller opening diameter to the end with the larger opening diameter. The paper cone body includes a first surface layer located on the inner side, a second surface layer located on the outer side, and an intermediate layer located between the first surface layer and the second surface layer. The connecting portion is located at the end of the paper cone body with the smaller opening diameter, which is the free end of the paper cone body that is bent away from the main body.

2. The new structure of the cone paperboard of claim 1, wherein: Both the first and second surface layers are made of twill fiberglass cloth with a weight of 200g / ㎡.

3. The new structure of the cone paperboard of claim 1, wherein: The intermediate layer is made of 2 mm thick foamed felt.

4. The new structure of the cone paperboard of claim 3, wherein: The foamed felt is made of one of the following: polyethylene foamed felt, asbestos foamed felt, or polyurethane foamed felt.

5. The new structure of the cone paperboard of claim 1, wherein: The intermediate layer adopts a honeycomb structure.

6. The horn-shaped paper cone with a novel structure as described in claim 1, characterized in that: The connecting part extends in the axial direction of the opening of the paper basin body, forming a mating surface perpendicular to the central axis.

Images