3D mobile phone back cover and molding process thereof

Abstract

The invention discloses a 3D mobile phone back cover which comprises a body. The body comprises a glass back cover and a PET film. The glass back cover is integrally formed by a glass bending machine through hot bending. The PET film is punched and cut. The PET film is arranged in the glass back cover. The inner flat plate part coincides with a flat plate part. A side bending part coincides with an inner side bending part. The PET film is vacuum laminated with the glass back cover through a transparent optical adhesive layer. An ink pattern layer is arranged on one side, which fits the glass back cover, of the PET film. According to the 3D mobile phone back cover provided by the invention, the glass back cover and the PET film are free of signal interference, so that the signal of a mobile phone is strong; wireless charging is realized; the 3D mobile phone back cover is suitable for the application of a 5G network; the glass has the advantages of light weight, being thin, scratch resistance and heat dissipation, so that the mobile phone back cover has the corresponding effects of light weight, being thin, scratch resistance and heat dissipation; and the mobile phone is prevented from heating. The invention further discloses a molding process of the 3D mobile phone back cover.

Description

Technical field [0001] The invention relates to mobile phone accessories, in particular to a mobile phone back cover and its forming process. Background technique [0002] Traditionally sold mobile phone back covers are generally made of plastic, and various effects are achieved by spraying various paints on the plastic shell. However, the plastic has poor wear resistance and insufficient strength, which makes the outer surface of the plastic phone back cover (mobile phone The side of the back cover facing the motherboard of the mobile phone is the inner surface, and the side facing the motherboard of the mobile phone is the outer surface.) It is easy to be damaged or scratched. In order to improve the wear resistance and strength of the mobile phone back cover, it is also made of stainless steel. This kind of stainless steel mobile phone back cover is too cumbersome to hold in the hand. As a result, a metal mobile phone back cover made of metal has appeared on the market. Becaus...

AI Technical Summary

Problems solved by technology

[0002] Traditionally sold mobile phone back covers are generally made of plastic, and various effects can be achieved by spraying various paints on the plastic shell, but the wear resistance of plastic is poor and the strength is not enough, so that the outer surface of the plastic mobile phone back cover The side of the back cover facing the main board of the mobile phone is the inner surface, and the side facing away from the main board of the mobile phone is the outer surface) is easily damaged or scratched. In order to improve the wear resistance and strength of the back cover of the mobile phone, it is also made of stainless steel, but This kind of stainless steel mobile phone back cover is too bulky to hold in the hand. Therefore, a metal mobile phone back cover made of metal material appears on the market. Because aluminum has the advantages of light weight, high wear resistance, good hand feeling and high strength , the existing metal mobile phone back cover is generally an aluminum mobile phone back cover

However, the metal characteristics of the aluminum mobile phone back cover will interfere with the signal, so that the battery cannot be charged wirelessly, and cannot be applied to the 5G network, and the back cover of the mobile phone will heat up after long-term use

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