Electronic product frame integrally-formed structural part and manufacturing method therefor

Abstract

Disclosed is an electronic product frame integrally-formed structural part. The electronic product frame integrally-formed structural part comprises a carbon fiber sheet material outer frame made from carbon fiber sheet materials and a metal inner frame made from metal, wherein the carbon fiber sheet material outer frame and the metal inner frame are integrally formed into one body through an injection molding carbon fiber resin composite material. The manufacturing method for the electronic product frame integrally-formed structural part comprises the steps of manufacturing the carbon fiber sheet material outer frame; manufacturing the metal inner frame; and putting the carbon fiber sheet material outer frame and the metal inner frame into an injection molding die, and enabling the carbon fiber sheet material outer frame and the metal inner frame to be combined and formed into one body through the injection molding carbon fiber resin composite material. By adoption of the electronic product frame integrally-formed structural part and the manufacturing method therefor, light and thin overall machine structure, high strength, low weight, and high forming precision can be realized, so that the frame body complex structure can be realized by a simple process in a low-cost and high-quality manner.

Description

technical field [0001] The invention relates to an electronic product frame integrally formed structural part and a manufacturing method thereof. Background technique [0002] With the demand for 3C electronic products (Computer, Communication, Consumer Electronics, computer, communication, and consumer electronics) such as mobile phones, wearable products, and mobile electronics, the demand for thinner, fashionable, and practical products, the existing electronic product shells are becoming more and more Most of them use carbon fiber materials that are lighter than aluminum alloy materials, higher in strength than steel, and better in thermal conductivity than plastics, so as to meet the increasingly thinner product thickness, higher and higher strength of the whole machine, light weight, high temperature resistance and Fast demand. [0003] In order to meet the high-strength requirements, the shell part is generally made of hot-pressed carbon fiber woven cloth with a spec...

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Problems solved by technology

[0003] In order to meet the high-strength requirements, the shell part is generally made of hot-pressed carbon fiber woven cloth with a specific strength and a specific modulus that are more than 7 times higher than steel. However, due to the limitations of materials and hot-pressing processes, it can only be made into flat and curved surfaces. Sheets cannot meet the needs of 3C electronic products with complex structures

[0004] Even for carbon fiber products with a simple structure, multi-layer hot pressing is required to form slowly, and due to the limitation of hot pressing process, a large amount of CNC processing is required after the product is hot pressed, and products that cannot be hot pressed are processed on the structural parts structure, making carbon fiber products, which are inherently high in material costs, more expensive

[0005] Although carbon fiber material is light and strong, its specific gravity is only 1 / 4 of that of steel, but it also leads to its relatively poor toughness and impact resistance. In daily use, it is subject to excessive deformation due to external extrusion, strong impact, bending, etc. condition, causing expensive carbon fiber products to break, crack or become damaged

[0006] With the development of thinner and lighter mobile phones, more and more metal materials are used as internal structural supports. However, due to the inconsistent thermal expansion coefficient and shrinkage rate of plastics and metals, there is a large deformation after the metal and plastics are integrally formed, resulting in existing mobile phones. The structure had to use metal for the main body and plastic for some parts. Although the thickness of the mobile phone is reduced and the strength is increased, the weight also increases accordingly, which makes the mobile phone shell and screen more likely to be broken.

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