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Abrasion-proof portable electronic device casing

An electronic device, portable technology, applied in the direction of electrical equipment shell/cabinet/drawer, electrical components, etc., can solve the problems that have not yet been found, the hardness of the material is not ideal, and it is difficult to meet the wear resistance requirements.

Inactive Publication Date: 2007-10-17
郭春樱
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Since the case is made of plastic, resin and other materials, the hardness of the material is not ideal; the case made of PC or ABS generally has a hardness of about 2H to 2.5H, which is difficult to meet the actual wear resistance. Demand, so that phenomena such as peeling marks on the case of mobile phones can be seen everywhere
[0005] The above-mentioned non-wear-resistant problem of the casing has long been known to the industry; if the casing is made of magnesium-aluminum alloy, the hardness can indeed be increased to about 5H. However, the material cost of magnesium-aluminum alloy is 20-20% of the aforementioned plastic materials. more than 30 times
If the casing is made of plastic, resin and other materials in consideration of cost, no matter how the material mixing ratio is changed, the hardness can only be slightly increased to about 2.5H-3H at most, which is far lower than the expected value; so far the present invention proposes So far, for casings made of plastic, resin, etc., no method has been found that can greatly increase the hardness

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The ratio of plastic: zirconium dioxide: zinc oxide = 98.5:1:0.5 is used to make the casing material. After testing, it is found that the hardness is as high as 5H, which is similar to or even surpasses that of magnesium-aluminum alloy. And under normal visible light irradiation, the bactericidal effect of Staphylococcus aureus can reach more than 99.5%. In addition, the zinc oxide component also helps to resist ultraviolet rays and prevent the plastic from disintegrating.

Embodiment 2

[0038] The ratio of plastic: zirconium dioxide: zinc oxide: calcium carbonate = 98.5:1:0.25:0.25 is used to make the casing material. After testing, it is found that the hardness is also as high as 5H, which is similar to or even surpasses that of magnesium-aluminum alloy. And the bactericidal function is similar to that of Example 1.

Embodiment 3

[0040] Using the ratio of plastic: zirconia: zinc oxide: silicon dioxide = 98.5: 0.5: 0.4: 0.6 to make the casing material, it is found that the hardness is about 4H, which is far superior to the existing plastic materials, and there are obvious cracks on the surface. Smoothness, more scratch-resistant.

[0041] The silicon dioxide was replaced by molybdenum disulfide, and the smoothness was found to be similar.

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Abstract

The invention provides a wearable portable electronic device casing. The casing is integrated produced by wearable plastic or produced by following steps: producing base by other rigid or plastic material, than coating wearable material to achieve wearable effect, adding the additive for enhancing the toughness in the wearable plastic or dope. The additive is zirconium dioxide, boron nitride, tungsten carbide, carborundum or the mixture containing more than two above materials.

Description

technical field [0001] The invention provides a wear-resistant portable electronic device case; further, the invention relates to a wear-resistant portable electronic device case with low cost and containing additives to enhance hardness. In addition to the main characteristics of wear resistance, this kind of casing can also add other functions, such as increasing the surface smoothness to make it scratch-resistant, or further providing antibacterial, negative ion, anti-Ultra-Violet ray (anti-Ultra-Violet ray, referred to as " Anti-UV"), anti-Electro-Magnetic Interference (anti-Electro-Magnetic Interference, referred to as "anti-EMI"), flame retardant (flameretardant), odor and moisture absorption, improve insulation, far-infrared functions and so on. Background technique [0002] Portable electronic devices have become a necessity in today's life, such as mobile phones, personal digital assistants (PDAs), digital cameras, notebook computers, and so on. However, these port...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K5/00
Inventor 张文礼
Owner 郭春樱
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