Multiple resonance points linked bass sound-box

A resonance point and linkage technology, applied in the direction of frequency/direction characteristic device, etc., can solve the problem that the amplitude and frequency characteristics of the speaker cone cannot be in the best state at the same time, the sensitivity and withstand power are low, and the sound pressure output drops a lot. Achieve the effect of improving the electro-acoustic conversion efficiency of the sound box, the technical significance and practicality are obvious, and the sound quality is improved.

Inactive Publication Date: 2007-03-14
徐耀忠
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AI Technical Summary

Problems solved by technology

The shortcomings of the double-opening built-in sound box are: the working frequency range of the sound box, that is, the band-pass width, the electro-acoustic conversion efficiency, the output amplitude-frequency flatness, and the amplitude-frequency characteristics of the speaker cone cannot reach the best state at the same time.
When F2=3F1, it is the opposite. The bandpass of the sound box becomes wider, but the sensitivity and the withstand power are lower. When the input electric power frequency is at the geometric midpoint of the two frequencies, the sound pressure output drops more. The load is very light, but the amplitude of the vibration cone increases instead, which becomes the bottleneck of the high-power sound box

Method used

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  • Multiple resonance points linked bass sound-box
  • Multiple resonance points linked bass sound-box
  • Multiple resonance points linked bass sound-box

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Embodiment Construction

[0016] The technical scheme created by the present invention will be further described below with reference to the accompanying drawings.

[0017] The present invention is achieved in this way; a linkage subwoofer box with multiple resonance points comprises 2 loudspeakers, a vibrating basin surface (front or back) of the loudspeaker drives a sub-sound box, and the loudspeaker is linearly linked, that is, the linkage rod and The direction of movement of the vibration cone is in a straight line; it is characterized in that it also includes 3 or 4 sound sub-boxes fixed together, each sub-sound box has a resonance point, and the resonance frequency is arranged in an orderly manner in accordance with the sound energy superposition rule.

[0018] Referring to attached drawings 1 and 2, Fig. 1 is a schematic diagram of a double-opening built-in sound box, which has two sub-boxes V1 and V3, two sound outlets 1 and 3 and corresponding two resonance frequencies of F1 and F3. The front ...

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Abstract

This invention relates to one bass reflex cabinet with multiple vibration points, which comprises two microphones with one vibration surface drive one part cabinet, wherein, the microphone is in line drive of cross drive bar and vibration movement; the invention comprises three or four part cabinets with each with one vibration point and vibration frequency meet the rules of overlapped sequence.

Description

technical field [0001] The invention belongs to the electro-acoustic technology, in particular to the bass sound box technology. Background technique [0002] Existing bass sound boxes, such as double-opening built-in bass sound boxes, belong to band-pass sound boxes. Known by accompanying drawing 1, two sound sub-boxes V1V3 form the double-opening built-in subwoofer sound box, each of the sound sub-boxes has a sound outlet, and the resonant frequencies F1, F3 of the sound sub-boxes. The driver speaker 5 is placed between the V1V3 boxes. The working principle of the sound box: when the frequency of the external audio electric power is F1, the air Helmhertz resonance audio power in the V1 box is output from the sound outlet 1 of the V1 box; when the frequency of the external audio electric power is F3, the air Helmhertz of the V3 box Resonance, audio power is output from the sound outlet 3 of the V3 box. When the frequency of the external audio frequency electric power is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/22
Inventor 徐耀忠
Owner 徐耀忠
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