TWM537773U - Diaphragm for acoustic cavity of loudspeaker, and loudspeaker equipment - Google Patents

Description

Sheet and audio equipment for audio sound chamber

The present invention relates to an acoustic device, and more particularly to a sheet for an acoustic sound chamber, and an acoustic device using the same.

The carbon fiber resin-based composite material has a high Young's modulus and a large specific modulus, and can be used in a large amount in an acoustic musical instrument. For example, the speaker in the audio equipment converts the electrical signal into an acoustic signal, and the sound cone of the speaker is a key component of the electroacoustic conversion. The material for manufacturing the sound basin needs to have: light weight, high rigidity and good resonance characteristics, and carbon fiber. Although the resin-based composite material or the metal material can satisfy the above three conditions, in the prior art, the acoustic equipment made of the carbon fiber resin-based composite material or the metal material still has the problem that the output bass sound quality is not full and full. .

Therefore, the object of the present invention is to provide a sheet for an acoustic sound chamber that can make the output of the bass sound quality more full, layered and mellow.

Therefore, the sheet for the acoustic sound chamber of the present invention comprises a first elastomer layer, a composite layer containing carbon fibers, and a second elastomer layer.

The carbon fiber-containing composite layer is disposed on the first elastomer layer, and the carbon fiber-containing composite layer includes a thermoplastic resin.

The second elastomer layer is disposed on the carbon fiber-containing composite layer. The first elastomer layer and the second elastomer layer are respectively disposed on opposite sides of the carbon fiber-containing composite material layer, and the first elastomer layer, the carbon fiber-containing composite layer and the second elastomer layer are sequentially arranged.

Another object of the present invention is to provide an acoustic device.

Thus, the present acoustic device comprises a cavity shell and a sheet for an acoustic sound chamber as described above.

The cavity shell defines a sound chamber.

The sheet for the sound sound chamber is accommodated in the sound chamber.

The effect of the novel is that by improving the structure of the sheet, the sound quality of the bass produced by the audio device using the sheet is more mellow and full.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 1, a first embodiment of a novel sheet for an acoustic sound chamber includes a first elastomer layer 1, a carbon fiber composite layer 2, and a second elastomer layer. 3.

The carbon fiber-containing composite layer 2 is disposed on the first elastomer layer 1, and the carbon fiber-containing composite layer 2 comprises a thermoplastic resin.

The second elastomer layer 3 is disposed on the carbon fiber-containing composite layer 2. The first elastomer layer 1 and the second elastomer layer 3 are respectively disposed on opposite sides of the carbon fiber-containing composite material layer 2, such that the first elastomer layer 1, the carbon fiber-containing composite material layer 2, and the second elasticity The body layer 3 is arranged in order.

The first elastomer layer 1 and the second elastomer layer 3 respectively have a good filtering effect on the clutter noise, and each comprise a thermo-elastomer. It is additionally noted that the thermoplastic elastomer has rubber elasticity at normal temperature and plasticized molding properties at high temperatures. Specifically, the thermoplastic elastomer may be a polyurethane resin or a polyamide resin.

It is to be noted that the first elastomer layer 1, the second elastomer layer 3 and the carbon fiber-containing composite layer 2 are heated and pressurized to make the first elastomer layer 1 and the second elastomer layer 3 The material is infiltrated into the carbon fiber-containing composite layer 2.

Referring to FIG. 2, a second embodiment of a sheet for an acoustic sound chamber of the present invention is similar to the first embodiment, and the second embodiment is mainly related to the first embodiment. The difference is:

The carbon fiber-containing composite material layer 2 includes a first carbon fiber layer 21, an intermediate layer 22, and a second carbon fiber layer 23 arranged in sequence. The first carbon fiber layer 21 and the second carbon fiber layer 23 each have a thermoplastic resin and are bonded to the first elastomer layer 1 and the second elastomer layer 3. It is to be noted that the carbon fiber-containing composite material layer 2 and the first elastomer layer 1 and the second elastomer layer 3 may be bonded by heat and pressure.

In the present embodiment, the intermediate layer 22 has a continuous carbon fiber yarn, a mixture of boron fiber braid and continuous carbon fiber yarn, continuous carbon fiber yarn and p-phenylene terephthalamides (PPTA fibers). One of known materials such as a mixture and a thermoplastic elastomer. The intermediate layer 22 may be entirely of a thermoplastic elastomer material such that the low frequency extension will be better.

Further, the intermediate layer 22 has a continuous carbon fiber yarn, a mixture of a boron fiber braid and a continuous carbon fiber yarn, and a mixture of a continuous carbon fiber yarn and a polyparaphenylene terephthalamide fiber, which is cured by a thermoplastic resin. These fibers. The first elastomer layer 1, the second elastomer layer 3, and the thermoplastic elastomer may be sheets.

Further, the first carbon fiber layer 21 may be woven by weaving, and the second carbon fiber layer 23 may be woven or woven without being woven.

Further, the second carbon fiber layer 23 may be woven by weaving, and the first carbon fiber layer 21 may be woven or unwoven after being woven. Because the carbon fiber structure after weaving is relatively neat and not easy to be scattered, the carbon fiber layer after weaving is regularly arranged, which has a good effect of filtering out noise.

As such, the second embodiment can achieve the same objects and effects as the first embodiment described above.

Referring to Fig. 3, an embodiment of an acoustic device of the present invention includes a cavity housing 4, and a sheet 100 for an acoustic sound chamber as described above.

The cavity housing 4 defines a sound chamber 41. Specifically, the cavity shell 4 can be a sound body of a guitar, and the sound chamber 41 is a resonance space defined by the body.

The sheet body 100 for the acoustic sound chamber is accommodated in the sound chamber 41. In this way, the sound quality of the bass output by the audio device can be made more mellow and full.

It should be noted that the sheet 100 for the acoustic sound chamber can also be directly attached to the cavity shell 4, and is not particularly limited by the above description.

In summary, the present invention improves the structure of the sheet body 100 for the acoustic sound chamber, so that the sound quality of the bass sound output by the sound device using the sheet body 100 for the sound sound chamber is more mellow and The fullness of the level, so it can achieve the purpose of this new type.

However, the above is only the embodiment of the present invention, and when it is not possible to limit the scope of the present invention, all the simple equivalent changes and modifications according to the scope of the patent application and the contents of the patent specification are still This new patent covers the scope.

1‧‧‧First elastomer layer
2‧‧‧Composite layer containing carbon fiber
21‧‧‧First carbon fiber layer
22‧‧‧Intermediate
23‧‧‧Second carbon fiber layer
3‧‧‧Second elastomer layer
4‧‧‧ cavity shell
41‧‧‧ sound chamber
100‧‧‧Slices for acoustic sound chambers

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: Figure 1 is a cross-sectional view showing a first embodiment of the present invention for a sound chamber 2 is a cross-sectional view showing a second embodiment of the present invention for a sound chamber of an acoustic sound chamber; and FIG. 3 is a schematic structural view showing an embodiment of the acoustic apparatus of the present invention.

1‧‧‧First elastomer layer

2‧‧‧Composite layer containing carbon fiber

3‧‧‧Second elastomer layer

Claims (5)

A sheet for an acoustic sound chamber, comprising: a first elastomer layer; a carbon fiber-containing composite layer disposed on the first elastomer layer, the carbon fiber-containing composite layer comprising a thermoplastic resin; and a second An elastomer layer disposed on the carbon fiber-containing composite material layer, wherein the first elastomer layer and the second elastomer layer are respectively disposed on opposite sides of the carbon fiber-containing composite material layer, such that the first elastomer layer and the carbon fiber-containing layer The composite material layer and the second elastomer layer are sequentially arranged. The sheet for an acoustic sound chamber according to claim 1, wherein the carbon fiber-containing composite layer comprises a first carbon fiber layer, an intermediate layer and a second carbon fiber layer, which are sequentially arranged, the first The carbon fiber layer and the second carbon fiber layer respectively have a thermoplastic resin and are bonded to the first elastomer layer and the second elastomer layer. The sheet for an acoustic sound chamber according to claim 2, wherein the intermediate layer has continuous carbon fiber yarn, a mixture of boron fiber braid and continuous carbon fiber yarn, continuous carbon fiber yarn and polyparaphenylene terephthalate. A mixture of diamine fibers and one of thermoplastic elastomers. The sheet for an acoustic sound chamber according to claim 2, wherein the first carbon fiber layer and the second carbon fiber layer are each woven. An acoustic device comprising a cavity shell defining a sound chamber; and a sheet for an acoustic sound chamber according to any one of claims 1 to 4, for sound sound The body of the sound chamber is accommodated in the sound chamber.