Mobile phone rear cover blank with middle frame

Abstract

The invention discloses a mobile phone rear cover blank with a middle frame. The mobile phone rear cover blank with a middle frame is characterized by comprising a mobile phone rear cover, a mobilephone middle frame, a material injection structure and a cold material structure, between the mobile phone rear cover and the mobile phone middle frame are excessively natural, the included angle between the mobile phone rear cover and the mobile phone middle frame is larger than or equal to 90 degrees, the thickness T1 of the mobile phone middle frame is larger than or equal to the thickness T2of the mobile phone rear cover, the material injection structure is arranged on the long edge or the short edge on one side of the middle frame of the mobile phone, the cold material structure is arranged in the middle frame of the mobile phone and corresponds to the material injection structure, a long edge or a short edge corresponding to the cold material structure corresponds to the cold material structure, the thickness of the material injection structure of the mobile phone rear cover blank of the middle frame is larger than the thickness of the mobile phone shell and is larger than thatof all the auxiliary materials except the material injection structure, so that the internal stress of the mobile phone shell is reduced, and the composite material in the mobile phone shell is prevented from being separated from each other. Due to the fact that the mobile phone rear cover and the mobile phone middle frame are integrated, the production process is reduced, and the cost is reduced.

Description

technical field [0001] The invention relates to a mobile phone back cover blank, in particular to a mobile phone back cover blank including a middle frame. Background technique [0002] In industrial production, blank refers to the raw material for industrial production. [0003] A mobile phone case is an ornament that protects or decorates the appearance of a mobile phone. [0004] At present, in the mobile phone case industry, the blanks of the back cover of the mobile phone including the middle frame are generally made of plastic, glass, ceramics and metals as raw materials. The blanks of the back cover of the mobile phone including the middle frame of the plastic material are prone to discoloration and odor. Glass and ceramic materials including the middle frame of the mobile phone back cover blank are easy to break and make people injured and unsafe. The metal mobile phone case will cause certain interference to the mobile phone signal and cannot meet the requirements ...

AI Technical Summary

Problems solved by technology

However, when the back shell and the middle frame of the mobile phone shell are connected as an integrated structure, different surface treatment processes are applied to different areas of the mobile phone shell, especially when the back shell part needs to achieve the bright edge effect of metallic texture, relying on the actual Difficult to achieve with technology

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