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Metal shell of communication equipment and preparation method thereof

A technology for metal casings and communication equipment, applied to metal casings and other directions, can solve the problems of destroying the metal texture, affecting the overall cleanliness and continuity of the appearance, and destroying the overall structure of the metal mobile phone body. Metal texture obvious effect

Active Publication Date: 2019-06-21
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned prior art prevents signal shielding by filling the antenna groove with plastic, but it causes certain damage to the overall structure of the metal mobile phone body, affecting the overall cleanliness and continuity of its appearance
At the same time, the visible plastic on the shell destroys the overall metal texture of the fuselage

Method used

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  • Metal shell of communication equipment and preparation method thereof
  • Metal shell of communication equipment and preparation method thereof
  • Metal shell of communication equipment and preparation method thereof

Examples

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Effect test

preparation example Construction

[0049] The present invention also provides a method for preparing the metal casing of the above-mentioned communication device, wherein the method includes the following steps:

[0050] 1) The step of forming the first protective layer on the inner surface of the metal substrate that needs to be formed on the surface other than the groove;

[0051] 2) A step of forming grooves on the inner surface side of the metal substrate;

[0052] 3) forming a second protective layer on the inner surface of the metal substrate after removing the first protective layer, and forming an opening through the second protective layer in the groove;

[0053] 4) a step of hard anodizing the metal substrate obtained in step 3);

[0054] 5) A step of removing the second protective layer.

[0055] The above-mentioned steps of the present invention will be described in detail below.

[0056] Step 1): the step of forming the first protective layer on the surface other than the grooves that need to ...

Embodiment 1

[0103] 1) Aluminum alloy (purchased from Dongguan Gangxiang Metal Materials Co., Ltd., grade 6063, thickness 0.4mm) was cut into a size of 15mmx80mm as the metal substrate. Paste insulating tape (purchased from Shenzhen Ximengte Electronics Co., Ltd., the same below) on the part where the groove needs to be formed on the inner surface of the metal substrate, wherein 2 insulating tapes are pasted, the width of the insulating tape is 3mm, and the length is 75mm. The spacing between adjacent insulating tapes is 3mm.

[0104]The protective layer is formed by electrophoresis, wherein the conditions of electrophoresis are: temperature is 30°C, voltage is 160V, time is 2min, pH is 7.8; electrophoretic liquid is: matt paint (WNO-1) of Shimizu Corporation of Japan: The varnish (NNO-4) of Nippon Shimizu Co., Ltd. = 7:3 (weight ratio, the solid content of the electrophoretic solution is 13% by weight), and a protective layer of 35 μm was obtained.

[0105] 2) Remove the insulating tape,...

Embodiment 2

[0112] 1) Aluminum alloy (purchased from Dongguan Gangxiang Metal Materials Co., Ltd., grade 6063, thickness 0.4mm) was cut into a size of 15mmx80mm as the metal substrate. Paste insulating tape on the part where grooves need to be formed on the inner surface of the metal substrate. Among them, paste 2 insulating tapes, the width of the insulating tape is 4mm, the length is 75mm, and the distance between adjacent insulating tapes is 3mm.

[0113] The protective layer is formed by electrophoresis, wherein the conditions of electrophoresis are: temperature is 30°C, voltage is 160V, time is 2min, pH is 7.8; electrophoretic liquid is: matt paint (WNO-1) of Shimizu Corporation of Japan: The varnish (NNO-4) of Nippon Shimizu Co., Ltd. = 7:3 (weight ratio, the solid content of the electrophoretic solution is 13% by weight), and a protective layer of 35 μm was obtained.

[0114] 2) Remove the insulating tape, and etch the masked area of ​​the insulating tape to obtain a groove, and th...

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Abstract

A communication device metal housing and a manufacturing method therefor. The communication device metal housing comprises: a metal substrate (1); a groove (4), where the groove (4) is provided on the inner surface of the metal substrate (1); a decorative layer (7), where the decorative layer (7) covers the outer surface of the metal substrate (1); and an oxide film layer (9), where the oxide film layer (9) runs through a portion of the metal substrate in the area of the groove.

Description

technical field [0001] The invention relates to a metal shell of communication equipment and a preparation method thereof. Background technique [0002] The mobile phone antenna is a device used to receive signals on the mobile phone. At present, most smart phones have built-in antennas, which requires that the back cover of the mobile phone cannot shield the signal. Plastic mobile phones do not have this problem. For the rising popularity of mobile phones with metal bodies, how to solve the signal shielding problem is one of the keys to its design and manufacture. [0003] At present, most metal mobile phones adopt the method of opening antenna slots and injection molding to solve the problem of signal shielding of the fuselage, such as the upper and lower antenna slots of HTCONE, and the side antenna slots of iphone5 / 5s. The above-mentioned prior art prevents signal shielding by filling the antenna slot with plastic, but causes certain damage to the overall structure of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K5/04
CPCH05K5/04
Inventor 廖重重陈梁
Owner BYD CO LTD
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