Speakers that can be hung

Abstract

The invention discloses a suspendable horn, which comprises a pot frame, a paper cone, a driving magnet with a containing groove, a voice coil and a voice coil guide cylinder, and the groove bottom of the containing groove protrudes outward along the axial direction to form a magnetic conduction The core column is characterized in that: an arc-shaped hook is provided above the driving magnet, the hook is connected with the upper end surface of the driving magnet through a straight rod, an anti-slip mechanism is provided inside the hook, and an air inlet channel and An air outlet channel, the air inlet channel is provided with an air intake check valve only for external air to be sucked into the voice coil guide tube, and an air outlet check valve is provided in the air outlet channel only for the air in the voice coil guide tube to be discharged A coil is wound on the outer wall of the magnetically permeable core post, and the direction of the magnetic field force generated by the coil and the voice coil is opposite to each other when electrified. The invention provides a suspendable loudspeaker, which has a good heat dissipation effect during the vibration and sound generation of the voice coil, thereby improving the continuous working time of the loudspeaker and the service life of the loudspeaker.

Description

technical field [0001] The invention relates to the technical field of electroacoustic transducers, in particular to a suspendable horn. Background technique [0002] The horn is also called the loudspeaker. The working principle of the more common electric loudspeaker is based on Faraday's law. When the current-carrying conductor passes through the magnetic field, it will receive an electromotive force, and its direction conforms to Fleming's left-hand rule. Force and current, magnetic field The directions are perpendicular to each other, and the magnitude of the force is proportional to the current, the length of the wire, and the magnetic flux density. When the voice coil is input with alternating audio current, the voice coil is subjected to an alternating driving force to produce alternating motion, which drives the paper cone to vibrate, and repeatedly pushes the air to produce sound. [0003] It can be seen that during the working process of the speaker, the voice co...

AI Technical Summary

Problems solved by technology

[0003] It can be seen that during the working process of the speaker, the voice coil is vibrating alternately, so the friction between the voice coil and the air, and the friction between the voice coil and the driving magnet will generate a certain amount of heat. If it cannot be discharged in time, the drive magnet will have a thermal demagnetization effect, which will eventually lead to a decrease in the magnetic performance of the drive magnet or complete demagnetization

Especially in high-power speakers, the amplitude and vibration frequency of the voice coil are relatively high, so the rate of heat generation is far greater than the rate of speaker heat dissipation, which limits the continuous working time of high-power speakers. However, the long-term continuous use of the above-mentioned existing high-power loudspeaker by the operator will cause the magnetic performance of the driving magnet to attenuate, thereby reducing the service life of the loudspeaker.

This is the problem that the high-power loudspeaker in the prior art is easily damaged after long-term continuous use

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