Speaker diaphragm and method for manufacturing the same

Abstract

A speaker diaphragm 1 is formed with a woven cloth as a base material. The woven cloth is formed with fibers made through mixing a natural fiber with a chemical fiber. Thereby, provided is the speaker diaphragm which has a high strength, a superior durability when inputting high power, a high environmental resistance, ability with an easy adjustment of sound quality characteristic, good-broad reproduction frequency characteristic, and a superior formability.

Description

technical field [0001] The present invention relates to a loudspeaker diaphragm and a manufacturing method thereof. Background technique [0002] In order to obtain various characteristics corresponding to the target reproduction range, or to adapt to the environment in which it is used, the speaker diaphragm is made of various materials. In general, as the characteristics of a speaker, in order to increase the natural frequency and expand the vibration range with excellent characteristics, it is necessary to select a material with a large specific elastic modulus (E / ρ). In addition, in order to suppress the resonance peak generated by the above natural frequency , To flatten the regeneration frequency characteristics, it is necessary to select materials with large internal losses. [0003] Paper materials, which have been used as materials for loudspeaker vibration plates, generally have the characteristics of low density and large internal loss, but due to their low elast...

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Problems solved by technology

[0008] However, for this prior art speaker vibration plate, only chemical fibers are used in the woven fabric constituting the base material, so that the molded product is relatively homogeneous, and there is no directionality in strength and rigidity. The advantages of avoiding multiple resonances during use, but due to the high homogeneity, the physical properties are affected by the fabric material, and there is a problem that it is difficult to adjust to achieve the desired characteristics.

Especially in order to achieve the purpose of improving the sound quality, it is preferable to have various adjustment parameters, but it is difficult to adjust to the expected sound quality characteristics by using the existing technology

[0009] In addition, in the prior art that uses a woven fabric made of only chemical fibers as a base material, impregnates it with a thermosetting resin, and performs molding, there is generally a wide range of problems in which internal losses are reduced and stabilization cannot be achieved. Problems with reproduction frequency characteristics

In addition, for woven fabrics made of chemical fibers only, during resin molding, since the fibers tend to slide against each other, the weave pattern is unstable, so there is also the problem of easy molding failure.

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