Loudspeaker

Abstract

The invention provides a loudspeaker, which comprises a basin frame, a vibration system fixed on the basin frame and a magnetic circuit system with a magnetic gap, and is characterized in that the vibration system comprises a first vibrating diaphragm and a second vibrating diaphragm which are fixed on two opposite sides of the basin frame; the magnetic circuit system comprises a skeleton which is opened along the vibration direction of the vibration system, magnetic steel which is fixed in the skeleton and is arranged at an interval with the inner wall of the skeleton, a first pole core which is fixed at one side, close to the first diaphragm, of the magnetic steel, and a second pole core which is fixed at one side, close to the second diaphragm, of the magnetic steel. The third pole core is fixed outside the framework, the third pole core and the outer wall of the framework are arranged at intervals, and the first pole core and the third pole core form a magnetic bowl through the framework. According to the loudspeaker provided by the invention, the single magnetic steel forms a closed magnetic field through the first pole core, the third pole core and the second pole core, and the first voice coil assembly and the second voice coil assembly move inside and outside in a staggered manner, so that the Z-direction space of the loudspeaker is saved, and higher magnetic field efficiency is obtained.

Description

【Technical field】 [0001] The invention relates to the technical field of electroacoustic conversion, in particular to a loudspeaker. 【Background technique】 [0002] The car speaker industry generally uses traditional paper cone speakers. At present, automobiles have higher requirements for speakers (speakers) with high sound quality, flexible layout, low power consumption, and small vibration. [0003] The vehicle-mounted loudspeaker in the related art includes a pot frame, a vibration system respectively fixed to the pot frame, and a magnetic circuit system with a magnetic gap, the magnetic circuit system drives the vibration system to vibrate and sound, and the vibration system includes a The diaphragm of the basin frame and the voice coil assembly fixed to the diaphragm and inserted into the magnetic gap to drive the diaphragm to vibrate and produce sound have the problems of large structural size, low efficiency, and large low-frequency vibration. 【Content of invention...

AI Technical Summary

Problems solved by technology

[0003] The vehicle-mounted loudspeaker in the related art includes a pot frame, a vibration system respectively fixed to the pot frame, and a magnetic circuit system with a magnetic gap, the magnetic circuit system drives the vibration system to vibrate and sound, and the vibration system includes a The diaphragm of the basin frame and the voice coil assembly fixed to the diaphragm and inserted into the magnetic gap to drive the diaphragm to vibrate and produce sound have the problems of large structural size, low efficiency, and large low-frequency vibration

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