Metal case of electronic product formed with antenna slot and preparation method thereof

A technology for electronic products and metal shells, which is applied to the metal shells of electronic products with antenna slots and its preparation field, which can solve the problems of affecting the cleanliness and continuity of the appearance, destroying the metal texture, and destroying the overall structure, so as to maintain Neatness and continuity, clean and smooth appearance

Active Publication Date: 2016-10-12
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the aforementioned method of opening an antenna slot on the metal casing of the electronic product (such as the metal mobile phone back cover) and injecting molding has caused certain damage to the overall structure of the metal casing of the electronic product (such as the metal mobile phone body), affecting its appearance. cleanliness and continuity
At the same time, the visible plastic on the metal casing of electronic products (such as the back cover of a mobile phone) also destroys the overall metal texture of the fuselage

Method used

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  • Metal case of electronic product formed with antenna slot and preparation method thereof
  • Metal case of electronic product formed with antenna slot and preparation method thereof
  • Metal case of electronic product formed with antenna slot and preparation method thereof

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preparation example Construction

[0030] In a second aspect, the present invention provides a method for preparing a metal casing of an electronic product formed with an antenna slot, the method comprising the following steps:

[0031] (1) The metal layer is subjected to hard anodic oxidation treatment and ink spraying treatment in sequence to form a hard anodic oxidation layer and an ink layer respectively;

[0032] (2) First, a step is formed on the back of the product obtained through step (1), so that the step penetrates the hard anodized layer and part of the metal layer on the back of the product in the thickness direction, and then an antenna slot is formed in the step, so that the antenna A groove runs through the thickness of the remaining metal layer and exposes the inner side of the front hard anodized layer;

[0033] (3) removing the ink layer on the surface of the product obtained through the treatment in step (2), and filling the antenna groove with a non-conductive material.

[0034] In the met...

Embodiment 1

[0068] This embodiment is used to illustrate the mobile phone aluminum alloy casing formed with the antenna slot and the preparation method thereof according to the present invention.

[0069] (1) Alkaline etching treatment: Cut the 5-series aluminum material with a thickness of 0.5mm in the aluminum alloy layer 3 into aluminum alloy sheets of 5cm*3.5cm. Alkali etching in the solution for 1.5min, and then washed twice with deionized water;

[0070] (2) Light-emitting treatment: at 25°C, put the aluminum alloy sheet obtained in step (1) into light-emitting liquid (based on 1L of light-emitting liquid, the amount of 65% by weight concentrated nitric acid is 300ml) for 2 minutes, and then deionized water Wash 2 times;

[0071] (3) Oxidation treatment: put the aluminum alloy sheet obtained in step (2) into an oxidation tank, wherein, at 10° C., adopt a forward square wave pulse with a duty cycle of 80%, a frequency of 800 Hz, and a current density of 5 A / dm 2 , the aluminum al...

Embodiment 2

[0081] This embodiment is used to illustrate the mobile phone aluminum alloy casing formed with the antenna slot and the preparation method thereof according to the present invention.

[0082] (1) Alkaline etching treatment: Cut the 5-series aluminum material with a thickness of 0.5mm in the aluminum alloy layer 3 into aluminum alloy sheets of 5cm*3.5cm. Alkaline etching in the solution for 2 minutes, and then washed twice with deionized water;

[0083] (2) Light-emitting treatment: at 20°C, put the aluminum alloy sheet obtained in step (1) into light-emitting liquid (based on 1L of light-emitting liquid, the amount of 65% by weight concentrated nitric acid is 400ml) for 1min, and then rinse with deionized water Wash 2 times;

[0084] (3) Oxidation treatment: put the aluminum alloy sheet obtained in step (2) into an oxidation tank, wherein, at 5°C, use a forward square wave pulse with a duty cycle of 50%, a frequency of 500Hz, and a current density of 2A / dm 2 , the aluminu...

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Abstract

The invention discloses a metal shell of an electronic product formed with an antenna groove and a preparation method thereof. The metal shell of the electronic product includes a metal layer and a hard anodized layer, and the hard anodized layer is wrapped on the surface of the metal layer. There is a step formed on the back of the metal casing of the electronic product, and the step penetrates the hard anodized layer and part of the metal layer on the back of the metal casing of the electronic product in the thickness direction, and the antenna groove is located in the step and penetrates through the remaining metal layer in the thickness direction, and The inner side of the front hard anodized layer is exposed, and the antenna slot is filled with a non-conductive material. The appearance of the antenna groove formed in the metal casing of the electronic product is invisible, which ensures the cleanliness and continuity of the appearance of the metal casing of the electronic product, and prevents the overall metal texture of the metal casing of the electronic product from being damaged.

Description

technical field [0001] The invention relates to the field of electronic product preparation, in particular to an electronic product metal shell formed with an antenna slot and a preparation method thereof. Background technique [0002] At present, in order to solve the problem of body signal shielding, electronic products such as metal mobile phones often adopt the method of opening and injecting antenna slots on the back cover of the mobile phone, such as the upper and lower antenna slots of HTC ONE, and the side antenna slots of iphone5 / 5s. However, the aforementioned method of opening an antenna slot on the metal casing of the electronic product (such as the metal mobile phone back cover) and injecting molding has caused certain damage to the overall structure of the metal casing of the electronic product (such as the metal mobile phone body), affecting its appearance. Cleanliness and continuity. At the same time, the visible plastic on the metal casing of electronic pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K5/04C25D11/02
CPCH04M1/0202H05K5/04C23F1/28H01Q1/243H04M1/026H04M1/0283H05K3/067
Inventor 蒋宝荣廖重重李爱华陈梁
Owner BYD CO LTD
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