Cylindrical loudspeaker and sound box equipment

Abstract

The invention belongs to the technical field of electroacoustic products, and particularly relates to a cylindrical loudspeaker and sound box equipment. The cylindrical loudspeaker comprises a cover body as well as an upper cover and a lower cover at two ends of the cover body, wherein an accommodating space is formed among the cover body, the upper cover and the lower cover; a connecting part anda sounding part are arranged in the accommodating space; the sounding part is arranged between the cover body and the connecting part; the sounding part includes a diaphragm component and a pluralityof engine components; the plurality of engine components are annularly distributed on the peripheral surface of the connecting part; a diaphragm is arranged between the engine assemblies and the cover body; and sound radiation angles formed by the diaphragm component and the plurality of engine components are greater than or equal to 180 degrees. Through use of the cylindrical loudspeaker and thesound box equipment disclosed by the invention, the sound diffusion range of the loudspeaker can be enlarged; the range of the sound wave radiation angle can reach 180 to 360 degrees; and the sound effect quality can be effectively improved.

Description

Technical field [0001] The invention belongs to the technical field of electroacoustic products, and specifically relates to a cylindrical loudspeaker and sound box equipment. Background technique [0002] So far, mid- and tweeter speakers are mainly divided into dome type, (aluminum) ribbon type, Haier type (pneumatic tweeter), piezoelectric type or electrostatic type. Although these types of speakers have their own strengths, they also have their own shortcomings. Explain separately. [0003] Dome tweeter: one of the most common electrodynamic speakers, that is, the dome diaphragm radiates sound through the magnetic force induced by the voice coil. Because the voice coil itself is an inductive component, it has inductive reactance to high frequencies, and its weight is greater than that of the metal circuit of the flexible circuit board, so it is difficult to emit high frequencies above 20KHz, but it is better to dive in the direction of medium and low frequencies. This is main...

AI Technical Summary

Problems solved by technology

However, the sound quality cannot meet the high-fidelity standard, and as a full-range speaker, it cannot emit a frequency below about 100Hz; the second is a large-sized and large-area electrostatic tweeter. The sound quality is excellent and the distortion is small, but the disadvantage is that it is also unable to emit lower frequencies, and the efficiency needs to be improved through the size of the area, and a high-voltage transformer is required, and the diaphragm is easily damaged

[0007] In addition, all the speakers listed above have a common shortcoming, that is, off-axis directivity. They almost radiate sound waves towards the front of the speaker, and diffuse radiation when the radiation angle is greater than 120° (plus or minus 60°). The level will deteriorate sharply, and the uniform radiation of 180°~360° cannot be achieved

Although some ribbon tweeters and high-end electrostatic tweeters are dipole 8-shaped, the back can also radiate sound, but the use value is not high, mainly because the sound waves on the front and back are in anti-phase, and the phase difference is 180°.

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