Square folded ring four-corner symmetrical diaphragm capable of improving split vibration

Abstract

The utility model provides a square folded ring four corner symmetry sound film which can improve the split vibration, which comprises upper and lower superimposed upper diaphragm and lower diaphragm, the upper diaphragm comprises a main body part and a folded ring and a positioning ring integrally arranged on the periphery of the main body part, wherein the main body part and the positioning ring are both designed as a plane structure, and the folded ring is designed as a structure with an upper convex arc cross section, and the lower diaphragm comprises an inner tangent ring, an outer tangent ring and a plurality of elastic waves, the upper and lower buckling upper diaphragm and lower diaphragm are designed, the combination structure of the upper convex folded ring and the lower concave elastic wave is utilized to cooperate vibration, the effective vibration area is greatly expanded, the problem of split vibration is strongly suppressed, the stress in the Z direction is dispersed, the third harmonic distortion is reduced, the gradually arranged reinforcing lines on the folded ring can further strengthen the structural strength of the sound film, and can effectively reduce the fluctuation range of the sound pressure curve, the utility model has strong practicability and strong popularization significance.

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