Conical paper cone without center hole and loudspeaker with conical paper cone

Abstract

The invention discloses a conical paper cone without a center hole. The conical paper cone without the center hole comprises a corrugated rim and a vibrating diaphragm. An upward protrusion is arranged at the central position of the vibrating diaphragm so as to form a connecting cavity in the lower surface of the center of the vibrating diaphragm. Simultaneously disclosed is a loudspeaker with the conical paper cone. According the conical paper cone without the center hole and the loudspeaker with the conical paper cone, a through hole is not formed in the center of the vibrating diaphragm, a structure similar to a blind hole is formed, after connection of the vibrating diaphragm and a voice coil is achieved, the protrusion, namely a swell in the center of the vibrating diaphragm just protects the voice coil, dust is completely prevented from entering a magnetic gap, use and installation of a dust cover are eliminated, element cost and assembly cost are saved, meanwhile bonding places are reduced, and product quality is improved. Meanwhile, according to the loudspeaker, the dust cover is eliminated, the integral paper cone structure is adopted, paper cone transmission is used, the integrity of the vibrating diaphragm is not damaged at the same time, product instability due to excessive joints is avoided, and quality stability of a product is effectively improved.

Description

technical field

[0001] The invention relates to the field of loudspeakers, and particularly designs a cone-shaped paper cone without a central hole and a loudspeaker with the paper cone. Background technique

[0002] The loudspeaker is a very commonly used electro-acoustic transducer. figure 1 Shown is a schematic diagram of the basic structure of a dynamic speaker in the prior art. Such as figure 1 As shown, the existing moving coil loudspeaker includes a conical basin frame 1, a magnetically conductive bowl 3 fixedly arranged at the bottom of the conical basin frame 1, a magnet 2 arranged at the center of the magnetically conductive bowl, and a magnetically conductive bowl arranged at the top of the magnet 2. Plate 4, the cone-shaped paper cone 5 fixedly connected to the opening of the basin frame on the outer periphery, the center of the cone-shaped paper cone is fixedly connected with a cylindrical skeleton, and a wire is wound on the cylindrical skeleton to form a voi...

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