Piston type loudspeaker

Abstract

The invention relates to a piston type loudspeaker which adopts an annular driver with strong magnetic field and large caliber; the annular driver is provided with an inner magnet-conducting ring andan outer magnet-conducting ring; an annular end cover is arranged on the lower end between the inner magnet-conducting ring and the outer magnet-conducting ring; an annular permanent magnet is arranged on the outer circle of the inner magnet-conducting ring; a piston type vibrator is provided with a honeycomb type panel diaphragm; the honeycomb type panel diaphragm is annular; an outer elastic wave sheet is arranged on the outer circle of the honeycomb type panel diaphragm, an inner elastic wave sheet on the inner circle; the upper surface of the honeycomb type panel diaphragm is a plane and the lower surface is an inner conical surface and an outer conical surface composed of a plurality of hexagonal honeycomb cores; the honeycomb type panel diaphragm is driven by using a large voice coil; the inner conical surface and the outer conical surface of the diaphragm are light in mass and have good rigidity; the honeycomb type panel diaphragm eliminates the split vibration of the conical cone, so that the entire panel diaphragm is completely in the piston vibration state in the effective frequency range; frequency response of the piston type loudspeaker is wide and flat with low harmonic distortion.

Description

technical field [0001] The invention relates to the field of electroacoustic technology, in particular to a piston type loudspeaker. Background technique [0002] The loudspeaker is an electroacoustic device composed of a magnetic circuit system and a vibration system. It has a long history of development. The traditional loudspeaker is a kind of electroacoustic device with mature and stable technology. The current loudspeaker is still in the magnetic circuit system and vibration system. With continuous improvement, a large number of new speakers have emerged on the market. For example, the published application number is "2015101140140", and the invention patent named "W-shaped speaker" changes the single-hung side diaphragm of the traditional speaker into a double-hung Side diaphragm `, but it is still a traditional cone cone speaker, its disadvantage is: when the cone cone vibrates up and down, the air compression force at the upper and lower ends of the cone is not equal...

AI Technical Summary

Problems solved by technology

[0002] The loudspeaker is an electro-acoustic device composed of a magnetic circuit system and a vibration system. It has a long history of development. The traditional loudspeaker is a kind of electro-acoustic device with mature and stable technology. The current loudspeaker is still in the magnetic circuit system and vibration system. With continuous improvement, a large number of new speakers have emerged on the market. For example, the published application number is "2015101140140", and the invention patent named "W-shaped speaker" changes the single-hung side diaphragm of the traditional speaker into a double-hung Edge diaphragm `, but it is still a traditional cone cone speaker, its disadvantage is: when the cone cone vibrates up and down, the air compression force at the upper and lower ends of the cone is not equal, and the cone cone is divided into vibrations Paper cone, the sound from the cone paper cone is distorted, so to reduce the distortion of the cone paper cone, it is best to replace the cone paper cone with a flat diaphragm

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