Environmental protection and energy saving type voice coil bobbin material

Abstract

The invention discloses an environmental protection and energy saving type voice coil bobbin material comprising a layer of polypropylene HPP base material layer having a thickness of 0.025-0.225mm and a high temperature resistant SV glue layer which is coated onto the surface of the polypropylene HPP base material layer. The thickness of the high temperature resistant SV glue layer is less than or equal to 0.005mm. The environmental protection and energy saving type voice coil bobbin material of the invention has the following advantages that: 1. the advantage of no electric conduction can be realized, and the influences of the magnetic field electric flow on the magnetic circuit will not generated by adverse effects generated by the five-magnetic-field electric flow; 2. the advantage of good heat resistance can be realized, radiant heat can be absorbed, the cryostat situation can be maintained in the high-power condition, and advantages of no deformation, no softening and no glue burnout can be realized; 3. the advantage of good rigidity can be realized, scars and broken lines are not easy to occur, the surface will always maintain the flat and clean state to make the loudspeaker manufacturing process quite convenient, and the advantage of good quality can be realized; 4, and the fluorine, the chlorine, the bromine, the iodine, the lead, the cadmium, the mercury, the hexavalent chromium, the polybrominated biphenyls and the polybrominated dimethyl ether are all cannot be detected.

Description

technical field [0001] The invention relates to a voice coil framework material, in particular to an environment-friendly and energy-saving voice coil framework material. Background technique [0002] A loudspeaker is an electro-acoustic device that converts electrical signals into sound signals. Specifically, the loudspeaker transforms the audio electric power signal within a certain unit into an audible sound with low distortion and sufficient sound pressure level through energy conversion. According to the working principle of the speaker, the existing speakers can be divided into electrodynamic, piezoelectric and electrostatic speakers. Among them, the electrodynamic loudspeaker has the advantages of simple structure, excellent sound quality and low cost, so it is the most widely used. [0003] An electrodynamic speaker generally includes a voice coil, a voice coil bobbin, a magnetic field system and a vibrating membrane. The voice coil is wound around one end of the v...

AI Technical Summary

Problems solved by technology

On the other hand, if the existing voice coil bobbin wants to achieve a certain strength, it must have a relatively large thickness, which will lead to a large weight of the voice coil bobbin, so that the electro-acoustic conversion efficiency of the speaker cannot be further improved. Therefore, in order to improve Input power and conversion efficiency, and then provide the volume of the speaker, it is necessary to further increase the specific strength of the voice coil skeleton and reduce the weight of the voice coil skeleton to achieve the effect of environmental protection and energy saving

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