Opened type loudspeaker device

Abstract

The invention discloses an opened type loudspeaker device, comprising a bracket, a vibration film with an inner hole at a center, a voice coil, a positioning support chip for supporting the voice coil, and a magnetic path system, wherein the bracket is concave inwards to form a cavity with a volume; an outer end of the vibration film is connected with an external part of the bracket; an inner end of the vibration film is connected with a coil frame of the voice coil; the voice coil is arranged in the magnetic path system; and the positioning support chip is located between the vibration film and the bracket. The opened type loudspeaker device is characterized in that: the vibration film is provided with at least one through hole capable of effectively releasing an air pressure in a small air chamber when the vibration film vibrates; at least one opening is arranged on a wall of the bracket; and an edge of the opening extends outwards to form an annular wall. The opened type loudspeaker device disclosed by the invention can normally carry out sound production without mounting a traditional box body, so as to simplify a loudspeaker, remove the sound pollution of the box body, improve the sound quality, simplify the assembly process and optimize the cost.

Description

technical field [0001] The invention relates to an open loudspeaker device, which belongs to the audio field. Background technique [0002] In the prior art, a speaker box mainly includes a speaker box body and a speaker unit, and the speaker unit must be installed on the box body to work normally. [0003] 1. Speaker box [0004] The basic structure of the speaker box in the prior art is as follows: 1) The panels around the speaker are bent into a box shape to form a cavity with a volume. as indicated Figure 8 , Figure 9 , Figure 10 shown. Includes enclosures fitted with semi-closed bends, such as Figure 8 As shown, the box shell is completely bent into a closed shape, such as Figure 9 shown. 2) Limited planar baffle speaker box, that is, the panel size of the speaker is required to be large enough, such as Figure 10 shown. [0005] two. speaker unit [0006] In the speaker unit in the prior art, the surface of the cone of the diaphragm is sealed, and air is...

AI Technical Summary

Problems solved by technology

The disadvantage is that the sound waves inside the box are reflected multiple times, the sound dyeing is serious, and the sound quality is affected. In addition, the box must be made larger, the placement is limited, the manufacturing and assembly process is complicated, and the cost is high. In the miniaturized multimedia speaker box system cost-effective

[0009] 2. Among the above, the conical speaker units in the prior art all have the front chamber effect, and it is more prominent when installed on the box body

The disadvantage is that due to the resonance of the sound wave in the air chamber, the distribution of the sound field is greatly disturbed, and the characteristics of the phase and frequency response curves are deteriorated.

[0010] 3. Among the above, the speaker unit of the speaker box in the prior art must be installed in the speaker box to produce sound normally.

The disadvantage is that the loudspeaker is limited by the box body, and an independent box body must be provided to avoid the normal sounding work due to the short circuit of the sound. Moreover, the box body must be made larger, the placement is limited, the sound dyeing is serious, and the assembly is difficult. The process is complicated and the cost is high, and the cost performance is not high in the miniaturized multimedia speaker box system

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