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Sound box shell and 3D printing manufacturing process thereof

A shell and sound box technology, which is applied in the direction of transducer shell/cabinet/bracket, loudspeaker, sensor, etc., can solve the problems of low forming precision of small aperture, unsightly exposed internal structure, and cumbersome processing steps, etc., to achieve improvement Sound playback effect, good rigidity, thin wall effect

Pending Publication Date: 2021-04-30
OECHSLER PLASTIC PROD TAICANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The speaker shell is one of the necessary parts of the speaker. The shell of the existing speaker equipment is mostly porous structure, and most of them are formed by welding after metal stamping. The processing steps are cumbersome and the cost is high.
Compared with the traditional method, 3D printing manufactures speaker shells have the advantages of being able to customize and print complex structures in one piece. However, limited by the current development level of 3D printing technology (such as selective laser sintering technology SLS), the precision of forming small apertures is not high. , and the speaker shell requires a small and round aperture, otherwise the internal structure is exposed and unsightly

Method used

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  • Sound box shell and 3D printing manufacturing process thereof
  • Sound box shell and 3D printing manufacturing process thereof
  • Sound box shell and 3D printing manufacturing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A sound box shell and its 3D printing manufacturing process.

[0020] (1) Design the hole section structure, in which the angle between the horizontal plane of the hole and the vertical hole wall is 30°, and the speaker shell with a wall thickness of 2mm, import the designed structure into a 3D printer and print it.

[0021] (2) The 3D printer adopts SLS selective laser sintering printer.

[0022] (3) The 3D printing of the speaker shell uses SLS selective laser sintering technology. The printing material is made of thermoplastic materials. The laser is used to scan and irradiate the powder layer by layer under the control of the computer to achieve sintering and bonding of thermoplastic materials, and layer by layer accumulation to achieve molding .

[0023] (4) The thermoplastic material used in the 3D printed speaker shell is a powder with a particle size of 100 microns, and the sintering temperature of the nylon material is 170°C. The above-mentioned particle size...

Embodiment 2

[0027] (1) Design the hole section structure, in which the angle between the horizontal plane of the hole and the vertical hole wall is 45°, and the speaker shell with a wall thickness of 2mm can be printed by importing the designed structure into a 3D printer.

[0028] (2) The 3D printer adopts SLS selective laser sintering printer.

[0029] (3) The 3D printing of the speaker shell uses SLS selective laser sintering technology. The printing material is made of thermoplastic materials. The laser is used to scan and irradiate the powder layer by layer under the control of the computer to achieve sintering and bonding of thermoplastic materials, and layer by layer accumulation to achieve molding .

[0030] (4) The thermoplastic material used in the 3D printed speaker shell is a powder with a particle size of 100 microns, and the sintering temperature of the nylon material is 170°C. The above-mentioned particle size and molding temperature of the thermoplastic material are ones ...

Embodiment 3

[0034] (1) Design the hole section structure, in which the angle between the horizontal plane of the hole and the vertical hole wall is 60°, and the speaker shell with a wall thickness of 2mm, import the designed structure into a 3D printer and print it.

[0035] (2) The 3D printer adopts SLS selective laser sintering printer.

[0036] (3) The 3D printing of the speaker shell uses SLS selective laser sintering technology. The printing material is made of thermoplastic materials. The laser is used to scan and irradiate the powder layer by layer under the control of the computer to achieve sintering and bonding of thermoplastic materials, and layer by layer accumulation to achieve molding .

[0037] (4) The thermoplastic material used in the 3D printed speaker shell is a powder with a particle size of 100 microns, and the sintering temperature of the nylon material is 170°C. The above-mentioned particle size and molding temperature of the thermoplastic material are ones that ma...

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Abstract

The invention relates to the technical field of loudspeaker box manufacturing and 3D printing, in particular to a loudspeaker box shell and a 3D printing manufacturing process thereof. A group of through holes are distributed in the sound box shell, one side or two sides of each through hole is / are horn-shaped, the section of the horn-shaped wall is two inclined straight lines, and the included angle between each inclined straight line and the normal of the surface of the shell is within 30-60 degrees; the wall thickness of the sound box shell is greater than or equal to 1mm, and the diameter of the minimum part of the through hole is in a range of 0.6 mm < 1 > mm; and the sound box shell is printed by adopting an SLS process. Experimental research shows that under the limitation of the same SLS printer precision, the sound box shell printed according to the standards is better in hole roundness and smoother in surface.

Description

technical field [0001] The invention relates to the technical fields of speaker manufacturing and 3D printing, in particular to a speaker shell and a 3D printing manufacturing process thereof. Background technique [0002] The speaker casing is one of the necessary parts of the speaker. The casings of the existing speaker equipment are mostly porous structures, and most of them are formed by welding after metal stamping. The processing steps are cumbersome and the cost is high. Compared with the traditional method, 3D printing manufactures speaker shells have the advantages of being able to customize and print complex structures in one piece. However, limited by the current development level of 3D printing technology (such as selective laser sintering technology SLS), the precision of forming small apertures is not high. , and the speaker shell requires a small and round aperture, otherwise the internal structure is exposed and unsightly. Contents of the invention [0003...

Claims

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Application Information

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IPC IPC(8): H04R1/02H04R31/00
CPCH04R1/02H04R31/00H04R2201/02H04R2201/029
Inventor 王敏旸吴玲杜湘云
Owner OECHSLER PLASTIC PROD TAICANG