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Inverse-phase type voice box

A speaker and phase-inverting technology, which is applied in the direction of frequency/direction characteristic devices, etc., can solve the problems of reduced sound wave refraction, difficulty in responding to bee valleys, and impact on sound quality, so as to achieve the effect of reducing windy sound and clear bass effect

Active Publication Date: 2015-02-18
NINGBO ZHONGRONG ACOUSTICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sound wave comes out from the loudspeaker and directly enters the inverter tube. Because the cross section of the inverter tube is arc-shaped, and the axis of the inverter tube transitions smoothly, the inner cavity of the inverter tube has almost no edges and corners, which can reduce the diffraction phenomenon of sound waves at the corners. To the lowest, the sound wave refraction is reduced to the lowest, it is not easy to cause the defects of the mid-frequency band response bee valley, the directivity of the mid-high frequency is narrowed, and it is not easy to produce harmful standing wave components, so that the diffusion performance of the mid-high frequency is significantly improved. Lack of speaker shell, after a long time of use, it will affect the whole and its various parts of the speaker or the joints of each part, prone to dust, affecting the service life of the speaker, dust entering the speaker, and at the same time affecting the sound quality of the speaker

Method used

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Examples

Experimental program
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Embodiment 1

[0029] An inverted sound box according to the present invention comprises a sound box body 1; said sound box body 1 includes a casing back shell 2 with an opening surface at the front and a casing front cover 7 connected to the edge of the opening surface of the casing back shell 2; The housing front cover 7 includes a grid panel 701 and an installation partition 702 for installing speakers, and the installation partition 702 is arranged between the grid panel 701 and the housing rear shell 2, specifically Yes, the edge of the housing rear shell 2 is provided with a threaded hole, and the edge of the housing front cover 7 (installation partition 702) is provided with a threaded hole matched with the threaded hole provided on the edge of the housing rear shell 2, so that First, it facilitates the screwing of the housing rear shell 2 and the housing front cover 7, and secondly, there are grid-shaped or irregularly arranged reinforcing ribs on the inner wall of the housing rear sh...

Embodiment 2

[0033] An inverted sound box according to the present invention comprises a sound box body 1; said sound box body 1 includes a casing back shell 2 with an opening surface at the front and a casing front cover 7 connected to the edge of the opening surface of the casing back shell 2; The housing front cover 7 includes a grid panel 701 and an installation partition 702 for installing speakers, and the installation partition 702 is arranged between the grid panel 701 and the housing rear shell 2, specifically Yes, the edge of the housing rear shell 2 is provided with a threaded hole, and the edge of the housing front cover 7 (installation partition 702) is provided with a threaded hole matched with the threaded hole provided on the edge of the housing rear shell 2, so that Firstly, it facilitates the screw connection between the housing rear shell 2 and the housing front cover 7, and secondly, there are grid-like or irregularly arranged reinforcing ribs on the inner wall of the ho...

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Abstract

The invention discloses an inverse-phase type voice box which comprises a voice box body (1). The voice box body (1) comprises a rear shell (2) and a front shell cover (7). An arch inverter tube (3) is fixed into the rear shell (2). The left end and the right end of the inverter tube (3) face the bottom of the rear shell (2). The left end and the right end of the inverter tube (3) are each provided with cavity shell (4) used for mounting a loudspeaker. The left end and the right end of the inverter tube (3) both stretch out of the cavity shells (4). An opening (201) is formed in the back face of the rear shell (2). A notch (303) is formed at the position, between the two cavity shells (4), of the inverter tube (3). A channel (5) is arranged between the opening (201) and the notch (303). The opening (202) is communicated with the notch (303) through the channel (5) in a sealed mode. The inverse-phase type voice box has the advantages that bass is clean and clear, and the low-frequency sound effect is good.

Description

technical field [0001] The field of the invention relates to a vented loudspeaker. Background technique [0002] The speakers on the market use the diaphragm of the speaker. The diaphragm includes paper and plastic. No matter what its material is, when the speaker is working, the diaphragm will move back and forth continuously to push the air, and then push the air. The vibrations are transmitted to the human ear, allowing the person to hear the sound. Ordinary inverted speakers expose the speaker diaphragm to the outside to produce sound, and the rear of the speaker will also vibrate. If the vibration of the speaker to the rear is also used, the sound waves will be strengthened, and the subwoofer will be strengthened. Later, since the diameter of the inverter tube is smaller than that of the speaker, relatively strong sound waves will rush out from the inverter tube. In this way, the sound waves to the front and rear of the speaker are used, which improves the sound qualit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/20
Inventor 闫峻金东曙
Owner NINGBO ZHONGRONG ACOUSTICS TECH