Composite vibrating ring and vibrating basin, loudspeaker and sound equipment comprising same

Abstract

The utility model relates to the technical field of loudspeakers, in particular to a composite vibrating ring and a vibrating basin, a loudspeaker and a sound box comprising the same. Comprising a foam base body which is in a vibration ring shape and formed by foam in a hot-pressing mode, and elastomer glue layers are attached to the surface and an internal porous structure of the foam base body. The composite vibrating ring has the advantages of light weight, high damping, high strength, good elasticity, good weather resistance, water resistance and the like, and the sound quality and durability of the loudspeaker can be effectively improved. The utility model also provides a vibration basin, a loudspeaker and a sound box comprising the composite vibration ring.

Description

Technical Field

[0001] The utility model relates to the technical field of loudspeakers, in particular to a composite vibration ring and a vibration cone, a loudspeaker and a sound system containing the same. Background Art

[0002] The cone is the primary sound-producing component in a loudspeaker (also known as a speaker), pushing air to produce sound at varying frequencies. The quality of a speaker's sound is closely linked to the cone. A speaker cone consists of a vibrating body and a flexible ring that moves up and down. The body pushes air to produce sound, while the ring secures the body and cushions its vibrations, ensuring the cone can transmit the sound vibration signal. The ring plays a crucial role in securing and protecting the cone. Its selection significantly impacts the sound quality and durability of the speaker, making it a crucial component for stable and reliable operation. Existing ring materials used for rings include rubber and foam. Rubber rings offer the advantage of a long service life, but their disadvantage is their heavy weight, which affects the cone's vibration efficiency. Foam rings offer the advantage of being lightweight and providing high vibration efficiency, but their disadvantages are susceptibility to aging and low strength, leading to significant performance degradation over time. Research is focused on developing rings with sufficient strength, elasticity, durability, and weather resistance. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a composite vibration ring having the advantages of light weight, high damping, high strength, good elasticity, good weather resistance, and waterproofness, which can effectively improve the sound quality and durability of a loudspeaker. The present invention also provides a vibration cone, a loudspeaker, and a speaker containing the composite vibration ring.

[0004] The technical solutions adopted by the present invention to solve the above problems are as follows:

[0005] A composite vibration ring comprises a foam matrix formed by hot pressing foam into a vibration ring shape, wherein an elastomer adhesive layer is attached to the surface and internal porous structure of the foam matrix.

[0006] Furthermore, the material of the elastomeric rubber layer is at least one of natural rubber, SBS rubber, styrene-butadiene rubber, butadiene rubber, styrene-propylene rubber, and EPDM rubber.

[0007] The preparation method of the composite vibration ring of the utility model can be any one of the following methods:

[0008] Method 1 includes the following steps:

[0009] S1. First, prepare a foam, and hot-press the foam into the desired vibration ring shape to obtain a foam matrix in the shape of a vibration ring;

[0010] S2. Immerse the foam matrix in the shape of a vibration ring in the emulsion prepared from the elastomer adhesive layer material; or coat the emulsion prepared from the elastomer adhesive layer material onto the surface of the foam matrix;

[0011] S3. Obtain the composite vibration ring after drying.

[0012] Method 2 includes the following steps:

[0013] S1. First, prepare the foam, and immerse the foam in the emulsion prepared from the elastomer adhesive layer material; or coat the emulsion prepared from the elastomer adhesive layer material onto the surface of the foam;

[0014] S2. Thermally press and shape the foam into the required vibration ring shape, and obtain the composite vibration ring after drying.

[0015] In the above preparation method, the soaking time and coating amount can be adjusted according to the need of sound quality, and different sound qualities can be obtained.

[0016] The present utility model provides a diaphragm containing the above composite vibration ring.

[0017] The present utility model provides a loudspeaker containing the above diaphragm.

[0018] The present utility model provides an audio containing the above loudspeaker.

[0019] The present utility model has the following beneficial effects:

[0020] The composite vibration ring of the present utility model is composed of a foam matrix and an elastomer adhesive layer. The elastomer adhesive layer adheres to the surface and inside of the porous structure of the foam matrix, which can effectively improve the waterproof performance of the vibration ring, prevent the foam matrix from contacting with oxygen and nitrogen gases in the air and aging, and improve the service life of the vibration ring; the provided elastomer adhesive layer can also reduce the unit mass of the composite vibration ring. The mass of the vibration ring is reduced by more than 30% compared with the rubber-like vibration ring, which can increase the strength and stability of the vibration ring to support vibration transmission, and can effectively improve the sound quality and durability of the loudspeaker; the provided elastomer adhesive layer can also effectively reduce the damage caused by external impact or vibration to the vibration ring and extend the service life of the loudspeaker.

[0021] The present utility model combines the foam matrix and the elastomer adhesive layer to make the vibration ring have the advantages of both foam-like vibration rings and rubber-like vibration rings, with light weight, long service life, good weather resistance, good elasticity and high strength at the same time; at the same time, the combination of the foam matrix and the elastomer adhesive layer improves the damping of the vibration ring and can effectively improve the vibration frequency and sound quality of the loudspeaker diaphragm.

[0022] The composite vibration ring of the present utility model has the advantages of light weight, high damping, high strength, good weather resistance, good elasticity, waterproof, etc. Using it in a loudspeaker can ensure the sound quality and durability of the loudspeaker. Description of the Drawings

[0023] Figure 1 Schematic cross-sectional structure diagram of the composite vibration ring provided by the present utility model;

[0024] Figure 2 Enlarged structure diagram of an elastic body adhesive layer material attached to the surface of a cell wall in the foam of the composite vibration ring of the present utility model. Specific embodiments

[0025] The present utility model will be described in detail below in conjunction with embodiments. The embodiments are only the preferred embodiments of the present utility model and do not limit the present utility model. Embodiment 1

[0026] As Figure 1-2 shown, a composite vibration ring proposed in this embodiment includes a foam matrix 21 formed by hot-pressing foam into a vibration ring shape, and an elastic body adhesive layer 22 is attached to the surface of the foam matrix 21 and the cell walls 211 of the internal porous structure.

[0027] In this embodiment, the preparation method of the composite vibration ring is as follows:

[0028] (1) First, prepare a polyurethane foam body;

[0029] (2) Heat and compress the polyurethane foam body through a mold to be shaped into the required vibration ring shape to obtain a foam matrix 21 in the shape of a vibration ring;

[0030] (3) Immerse the foam matrix 21 in the shape of a vibration ring in an emulsion prepared from an elastic body adhesive layer material;

[0031] (4) Take out the impregnated foam matrix 21 and dry it to obtain a composite vibration ring.

[0032] During the preparation process, the used elastic body adhesive layer material penetrates into the internal porous structure of the foam matrix, so that an elastic body adhesive layer material is attached to the cell walls of the cells in the foam matrix.

[0033] In this embodiment, the elastic body adhesive layer material is ethylene propylene diene monomer rubber. In other embodiments, the elastic body adhesive layer material can also be natural rubber, SBS rubber, styrene butadiene rubber, cis-1,4-polybutadiene rubber, styrene-acrylic rubber. Embodiment 2

[0034] In this embodiment, the composite layer structure of the composite vibration ring is the same as that in Embodiment 1;

[0035] The preparation method of the composite vibration ring is as follows:

[0036] (1) First, prepare a polyurethane foam body;

[0037] (2) Heat the polyurethane foam through a mold and compress it into the required shape of the vibration ring to obtain the foam matrix 21 in the shape of the vibration ring;

[0038] (3) Coat the surface of the foam matrix 21 in the shape of the vibration ring with an emulsion prepared from an elastomer adhesive layer material;

[0039] (4) Take out the coated foam matrix 21 and dry it to obtain a composite vibration ring.

[0040] During the preparation process, after coating the surface of the foam matrix with an emulsion prepared from an elastomer adhesive layer material, the elastomer adhesive layer material flows into and immerses the internal porous structure of the foam matrix, so that the elastomer adhesive layer material adheres to the pore walls of the pores in the foam matrix.

[0041] In this embodiment, the elastomer adhesive layer material is SBS rubber. In other embodiments, the elastomer adhesive layer material can also be natural rubber, styrene-butadiene rubber, cis-butadiene rubber, ethylene-propylene-diene monomer rubber, or styrene-acrylic rubber.

[0042] The composite vibration ring of the present utility model is composed of a foam matrix and an elastomer adhesive layer. The elastomer adhesive layer is attached to the surface and internal porous structure of the foam matrix, which can effectively improve the waterproof performance of the vibration ring, prevent the foam matrix from contacting with oxygen and nitrogen gases in the air and aging, and improve the service life of the vibration ring; the provided elastomer adhesive layer can also reduce the unit mass of the composite vibration ring. The mass of the vibration ring is reduced by more than 30% compared with rubber vibration rings, which can increase the strength and stability of the vibration ring to support vibration transmission, and can effectively improve the sound quality and durability of the speaker; the provided elastomer adhesive layer can also effectively reduce the damage caused by external impact or vibration to the vibration ring and extend the service life of the speaker.

[0043] The vibration ring formed by the composite of the foam matrix and the elastomer adhesive layer in the embodiment combines the advantages of foam vibration rings and rubber vibration rings. It has a long service life, good weather resistance, good elasticity, and high strength while being light in weight; at the same time, the combination of the foam layer and the elastomer adhesive layer improves the damping of the vibration ring and can effectively improve the vibration frequency and sound quality of the speaker diaphragm. Embodiment 3

[0044] In this embodiment, a speaker diaphragm containing the composite vibration ring described in Embodiment 1 is provided.

[0045] The connection relationship between the composite vibration ring and other components of the speaker diaphragm in this embodiment is common knowledge in the art and will not be described in detail here. Embodiment 4

[0046] In this embodiment, a loudspeaker containing the speaker diaphragm described in Embodiment 3 is provided.

[0047] The positional relationship between the vibrating diaphragm and other components inside the loudspeaker in this embodiment is common general knowledge in the art and will not be described in detail herein. Embodiment 5

[0048] In this embodiment, an audio device containing the loudspeaker described in Embodiment 4 is provided.

[0049] The positional relationship of the loudspeaker in the audio device in this embodiment is common general knowledge in the art and will not be described in detail herein.

[0050] Since the vibrating diaphragm, the loudspeaker, and the audio device in the embodiments include the composite vibrating ring of the present invention, the prepared vibrating diaphragm, loudspeaker, and audio device have good sound quality, long service life, and are durable.

[0051] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention.

[0052] It should be noted that similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In the description of the embodiments of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use, or the orientation or positional relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present application.

[0053] In addition, it should be noted that, in the case of no conflict, the various specific technical features described in the above specific embodiments can be combined in any suitable manner. To avoid unnecessary repetition, the present invention will not further describe various possible combination methods.

[0054] In addition, any combination can be made between various different embodiments of the present invention, as long as it does not violate the idea of the present invention, and it should also be regarded as the content disclosed by the present invention.

Claims

1. A composite vibrating ring, comprising a foam matrix hot-pressed into a vibrating ring shape by foam, characterized in that: An elastomeric adhesive layer is attached to the surface and internal porous structure of the foam matrix.

2. The composite vibration ring according to claim 1, wherein: The elastomeric adhesive layer is any one of a natural rubber layer, an SBS rubber layer, a styrene-butadiene rubber layer, a cis-1,4-polybutadiene rubber layer, a styrene-acrylic rubber layer, and an ethylene-propylene-diene monomer rubber layer.

3. A diaphragm comprising the composite vibration ring according to claim 1 or 2.

4. A loudspeaker comprising the diaphragm according to claim 3.

5. An audio device comprising the loudspeaker according to claim 4.

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