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Portable electronic device casing and its manufacturing method

A technology of electronic device and manufacturing method, applied in the direction of electrical equipment shell/cabinet/drawer, electrical components, etc., can solve the problems of easy falling off, deformation, weak bonding force between alloy sheet and plastic shell, etc.

Inactive Publication Date: 2005-02-16
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this method is used, the alloy flakes are easy to fall off or wrinkle due to the weak bonding force between the alloy flakes and the plastic shell, and the flakes are easy to break and deform when the mold is closed, causing them to fall off easily.

Method used

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  • Portable electronic device casing and its manufacturing method
  • Portable electronic device casing and its manufacturing method
  • Portable electronic device casing and its manufacturing method

Examples

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Embodiment Construction

[0013] combined reference figure 1 and figure 2 , the casing 1 of the portable electronic device (such as PDA, mobile phone, etc.) of the present invention includes a first plastic layer 10 and a second plastic layer 12 , and the second plastic layer 12 is coated on the outside of the first plastic layer 10 . The first plastic layer 10 includes a mixed layer 102 containing metal particles or flakes and plastic, and an inner layer 101 thereof.

[0014] The metal particles or flakes in the mixed layer 102 are quite small (refer to image 3 ), the diameter of the metal particles is about 0.2nm to 1mm, and the height (h) and width (d) of the metal flakes are about 0.1 μm to 2mm. The metal particles or metal flakes in the mixed layer 102 can achieve the effect of shielding electromagnetic radiation , the metal material can be aluminum, copper or alloys thereof, but not limited to the above metals or alloys thereof. The inner layer 101 is a plastic layer with the same compositio...

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Abstract

The body case includes first plastic layer and second plastic layer. The first plastic layer is a mixing layer containing metal granules or slices and plastic. Jet shaping method is adopted in the invention. The said mixed material is compact and wearable. Features are simple technique and high production efficiency.

Description

【Technical field】 [0001] The invention relates to a casing of a portable electronic device and a manufacturing method thereof. 【Background technique】 [0002] Electromagnetic radiation interference is one of the common problems of electronic equipment. Portable electronic devices such as Personal Digital Assistant (PDA, Personal Digital Assistant) are developing rapidly, and their functions are becoming stronger and stronger. However, the electromagnetic radiation interference problem of portable electronic equipment is becoming more and more serious. , so it is necessary to provide a casing for preventing electromagnetic radiation interference for portable electronic devices. [0003] In order to reduce the electromagnetic radiation interference of the portable electronic device, usually a metal aluminum sheet is arranged on the casing of the portable electronic device. For example, US Patent No. 6,207,089, in order to reduce electromagnetic interference around portable el...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C45/00H05K5/00
Inventor 吕昌岳余泰成
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD