Sound leading tube

A technology of a sound guide tube and a tube body, which is applied in the field of sound guide tubes, can solve the problems such as the inability to further improve the influence of the sound guide tube on the sound quality of the earphone, the inability to improve the structure of the sound guide tube, and the stay of the sound guide tube.

Active Publication Date: 2016-01-20
XIHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the current research on the sound guide tube only stays on the size specification of the sound guide tube, and there is little research on how other structures of the sound guide tube affect the sound quality of the earphone, so it is impossible to make further structural studies on the sound guide tube. Improvement, and it is impossible to further improve the influence of the sound guide tube on the sound quality of the earphones

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The test object of this embodiment includes No. 1 sound guide tube which is the sound guide tube in the prior art, No. 2 sound guide tube with a helical groove helix angle of 45°, and No. 3 sound guide tube with a helical groove helix angle of 60° Sound guide tube, No. 4 sound guide tube with helical groove with a helix angle of 75°. The length of the above four test objects is 4cm, the diameter of the inner hole is 2mm, and the wall thickness is 1mm, and they are all made of silica gel material. 000. The number of spiral grooves in the sound guide tubes with spiral grooves on the inner wall is 6, and the depth of the spiral grooves is 0.15mm.

[0021] When testing, connect one end of the above-mentioned four sound guide tubes to the sound outlet of the moving iron unit respectively, and the connection between the two is strictly sealed, and then connect the moving iron unit to the electroacoustic tester through a wire, and the electroacoustic The signal generator ins...

Embodiment 2

[0027]The test object of this embodiment includes No. 1 sound guide tube which is the sound guide tube in the prior art, No. 5 sound guide tube with 4 spiral grooves, and No. 6 sound guide with 5 spiral grooves. Tube, No. 7 sound guide tube with 7 helical grooves. The length of the above four test objects is 4cm, the diameter of the inner hole is 2mm, and the wall thickness is 1mm, and they are all made of EVA material. 000. The helix angle of the helical grooves in the sound guide tube with the helical grooves on the inner wall is 60°, and the depth of the helical grooves is 0.15mm.

[0028] When testing, connect one end of the above-mentioned four sound guide tubes to the sound outlet of the moving iron unit respectively, and the connection between the two is strictly sealed, and then connect the moving iron unit to the electroacoustic tester through a wire, and the electroacoustic The signal generator inside the tester outputs a stable voltage of 152mV and sweep frequency...

Embodiment 3

[0034] The test object of this embodiment includes No. 1 sound guide tube which is the sound guide tube in the prior art, No. 8 sound guide tube with a spiral groove depth of 0.1 mm, and No. 9 sound guide tube with a spiral groove depth of 0.2 mm. Tube, a No. 10 sound guide tube with a helical groove depth of 0.3mm. The length of the above four test objects is 4cm, the diameter of the inner hole is 2mm, and the wall thickness is 1mm, and they are all made of EVA material. 000. The helix angles of the helical grooves in the sound guide tubes with the helical grooves on the inner wall are all 60°, and the number of the helical grooves is 6.

[0035] When testing, connect one end of the above-mentioned four sound guide tubes to the sound outlet of the moving iron unit respectively, and the connection between the two is strictly sealed, and then connect the moving iron unit to the electroacoustic tester through a wire, and the electroacoustic The signal generator inside the test...

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PUM

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Abstract

The invention discloses a sound leading tube, which comprises a tube body. The inner wall of the tube body is provided with multiple spiral grooves with the same specification and extending along the axial direction of the tube body; seen from the axial section plane of the tube body, the spiral grooves are arranged at equal distances; and the spiral angle of each spiral groove has a range of 45 DEG to 75 DEG. According to sound outputted by adopting the sound leading tube of the invention, the sound field is larger, the sound density is larger, the resolution is higher, and the quality of sound led out from the sound leading tube is improved. The invention also discloses a moving iron headphone formed by the sound leading tube, which comprises a headphone shell, a moving iron unit arranged inside the headphone shell and a wire connected with the moving iron unit, wherein the sound outlet of the moving iron unit is connected with the above sound leading tube. The moving iron headphone of the invention can bring better hearing enjoyment for a listener.

Description

technical field [0001] The invention relates to the field of sound effect equipment, in particular to a sound guiding tube. Background technique [0002] With the continuous development of music playback equipment and people's pursuit of a higher quality of life, the number of earphones used has increased significantly in recent years. Ordinary consumers are no longer limited to the price of earphones when choosing earphones, they will also consider the effect of earphones and whether the earphones have an impact on human health. For some music lovers, when choosing headphones, they usually focus on all aspects of the performance of the headphones, and they are more picky about the listening enjoyment brought by the headphones. [0003] There are three main types of earphones on the market: moving coil earphones, moving iron earphones, and coil iron hybrid earphones. The working process of the above three earphones is roughly the same. After the earphone receives the elect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R1/10
Inventor 孙虎何启健邱源
Owner XIHUA UNIV
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