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Graphene loudspeaker paper cone and production method thereof and loudspeaker

A vinyl speaker and manufacturing method technology, applied in the field of speakers, can solve the problems of paper brittleness, insufficient strength, poor toughness, etc., and achieve the effect of improving product quality, improving strength and toughness, and increasing service life

Inactive Publication Date: 2018-12-18
深圳市烽火宏声科技有限公司
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Problems solved by technology

[0006] The main purpose of the present invention is to provide a graphene speaker cone and its manufacturing method and speaker, to solve the problems that the paper of the existing speaker cone is brittle, insufficient in strength and poor in toughness

Method used

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Embodiment Construction

[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments and accompanying drawings.

[0029] Such as figure 1 As shown, the graphene speaker cone provided by the embodiment of the present invention is made of pulp, and the pulp is mixed with graphene powder accounting for 0.5%-3% of the dry weight of the pulp. The particle size of graphene powder is 2000 mesh-3000 mesh. If it is to make a paper cone for a woofer, the graphene powder can be controlled to account for 0.5% of the weight of the dry pulp, and the graphene powder can be added to the pulp at a maximum of 3% of the weight of the dry pulp. Such as figure 2 As shown, when no graphene powder is added to the pulp, there are large pores between the pulp molecules 1, resulting in brittle pulp, low strength, insufficient toughness, easy to rot, and easy to break. Such as ima...

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Abstract

The invention discloses a graphene loudspeaker paper cone and a production method thereof and a loudspeaker. A paper pulp material is adopted for the paper cone, paper pulp and graphene powder which accounts for 0.5%-3% of the weight of the dry paper pulp material are mixed, and after the graphene powder is added, pores among paper pulp molecules are effectively filled with graphene particles, sothat the strength and the tenacity of the paper cone are greatly improved, and the reliability of the loudspeaker is improved. Meanwhile, due to the fact that graphene is smooth, and is not prone to adhere to a mould, after the paper cone is shaped on the mould, the paper cone can be taken off the mould very easily, the problem that traditional paper cone demoulding is hard can be effectively solved, and the production efficiency is improved. Moreover, due to the fact that the graphene powder is gray, when a black or gray paper cone needs to be produced, by adding a proper amount of graphene powder, the required color can be obtained, and the required color can be obtained without conducting color modulation on the paper pulp. According to the loudspeaker adopting the paper cone, the papercone is not prone to be damaged, the product quality of the loudspeaker is improved, and the service life of the loudspeaker is prolonged.

Description

technical field [0001] The invention relates to loudspeaker technology, in particular to a graphene loudspeaker paper cone, a manufacturing method thereof, and a loudspeaker. Background technique [0002] Loudspeaker cones have been produced using traditional techniques since loudspeakers were invented. Generally speaking, the requirements for paper cones need to have three characteristics: a. The density ρ of the material should be small; The combination of the two characteristics requires that the specific elastic rate E / ρ value of the material is larger; c. It has appropriate internal damping, which can suppress the vibration of the paper cone separation, make the frequency response characteristic curve flat, and reduce distortion. Therefore, according to the requirements of different frequency response characteristics, pulp can be mixed with a certain proportion of different ingredients to make paper cones suitable for high-frequency, medium-frequency or low-frequency c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21H17/00D21J3/00H04R7/12H04R31/00
CPCD21H17/00D21J3/00H04R7/12H04R31/00
Inventor 郭治平黄晓严洪波王国良
Owner 深圳市烽火宏声科技有限公司
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