Dust cap for speaker


PURPOSE:To provide a dust cap for speaker of which elasticity is large, internal loss is large and acoustic characteristic is excellent. CONSTITUTION:Elastic epoxy resin hardening bisphenol A system epoxy resign with silicon metamorphic polymer is applied on the side of the voice coil of the body obtained by performing thermal press molding to dust cap state for what is coupled by epoxy resin after performing the plain weave of polyimide fiber bundle and carbon fiber bundle of polyimide fiber having a stretch strength of 300kg/mm<2> and a stretch elastic modulus of 14000kg/mm<2> so that the both fiber bundles may cross each other.




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Cited By (2)

    Publication numberPublication dateAssigneeTitle
    CN-103047926-AApril 17, 2013宁波更大集团有限公司Detection device of dustproof cover of bearing
    US-6594155-B2July 15, 2003Nec CorporationMounting structure of electronic parts