Carbon fiber globe-roof and manufacturing method therefor

Abstract

The invention relates to a carbon fiber globe-roof, and the globe-roof comprises a foam material layer, a first carbon fiber layer located on the upper end face of the foam material layer and / or a second carbon fiber layer located on the lower end face of the foam material layer. The first carbon fiber layer and / or the second carbon fiber layer respectively comprise / comprises one carbon fiber unidirectional prepreg layer or many carbon fiber unidirectional prepreg layers. The invention also relates to a manufacturing method for the carbon fiber globe-roof. The method comprises the steps: presoaking a unidirectional carbon fiber belt through presoak resin; and pasting the presoaked unidirectional carbon fiber belt on the upper end face and / or the lower end face of the foam material layer. According to the invention, the carbon fiber unidirectional prepreg is used for replacing aluminium foil, thereby improving the strength, reducing the thickness, enabling the sound quality to be improved, enabling the unidirectional carbon fiber belt to be closely attached to a foam material through the solidifying process of the prepreg, avoiding the interlayer separation, and guaranteeing the service life.

Description

【Technical field】 [0001] The invention relates to the field of electroacoustic instruments, in particular to a carbon fiber dome and a method for manufacturing the carbon fiber dome. 【Background technique】 [0002] A dome speaker is a speaker that uses a dome-shaped diaphragm to directly radiate sound waves. It belongs to the electric speaker. The diaphragm is a hemispherical diaphragm. The voice coil is directly supported by the diaphragm ring without a centering piece. It is characterized by good high-frequency response, wide directivity and low distortion. The dome top of the diaphragm is usually made of aluminum foil and foam material. With the development of the electronics industry, electroacoustic systems need to continuously improve performance and reliability, and the requirements for the dome are getting higher and higher. The existing aluminum foil and The domes made of foamed materials can no longer meet the needs of use, and problems such as broken aluminum foi...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the problems of poor mechanical properties, unattractive appearance, easy breakage, and material delamination of existing dome structures. The first aspect of the present invention provides a carbon fiber dome with excellent mechanical properties and acoustic properties and beautiful appearance. The carbon fiber dome It includes a foam material layer, a first carbon fiber layer located on the upper end surface of the foam material layer and / or a second carbon fiber layer located on the lower end surface of the foam material layer, wherein the first carbon fiber layer and / or the The second carbon fiber layer includes one or more layers of carbon fiber unidirectional tape prepreg

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