Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A metal shell of communication equipment and its preparation method and application

A technology for communication equipment and metal shells, which is applied in the field of metal shells of communication equipment and its preparation, can solve problems affecting the overall cleanliness and continuity of the appearance, destroying the metal texture of the fuselage, and destroying the overall structure of the metal mobile phone fuselage, etc. Clean and smooth appearance, improved shock resistance and corrosion resistance

Active Publication Date: 2019-11-22
BYD CO LTD
View PDF3 Cites 0 Cited by
  • 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 of the shell will also destroy the overall metal texture of the fuselage

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A metal shell of communication equipment and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] The invention provides a method for preparing a metal casing of a communication device, wherein the method includes the following steps:

[0024] 1) forming a plastic layer with at least one slit by injection molding on the inner surface of the metal shell;

[0025] 2) forming a decorative layer on the outer surface of the metal shell;

[0026] 3) forming a protective layer on the outer surface of the decorative layer;

[0027] 4) etching the metal shell corresponding to the slit from the inner surface of the metal shell, so that the metal shell at the slit penetrates;

[0028] 5) forming a colloid filler at the slit;

[0029] 6) Remove the protective layer.

[0030] In the present invention, the communication device may be, for example, a mobile phone, a tablet computer, a notebook computer, a bluetooth earphone, a router, or a bracelet.

[0031] In the present invention, the inner surface of the metal casing is defined as the surface of the metal casing facing the...

Embodiment 1

[0066] This embodiment is used to illustrate the preparation method of the metal casing of the communication device provided by the present invention.

[0067] 1) Injection molding

[0068] Plastic layer 2 is formed by nano-injection molding on the inner surface of metal shell 1 (aluminum alloy shell, purchased from Nanping Aluminum Co., Ltd., grade 5052, thickness 0.2mm). The injection molding material is polyphenylene sulfide (PPS) and Glass fiber (weight ratio PPS: glass fiber = 2:1), injection molding conditions are: mold temperature 140°C, nozzle temperature 300°C, dwell time 7s, injection pressure 200MPa, injection time 6s, delay time is 15s, and the cooling time is 10s. Anneal at 120°C for 1.5h after demoulding and cooling. The formed slits are linear, the number of which is 3, the length is 6 cm, the width is 1 mm, and the distance between two adjacent slits is 5 mm.

[0069] 2) Form the decorative layer by anodic oxidation

[0070] Use adhesive tape (GHT2545G gree...

Embodiment 2

[0080] This embodiment is used to illustrate the preparation method of the metal casing of the communication device provided by the present invention.

[0081] The method of Example 1 was used to prepare the metal casing of the communication device, except that in step 2), a hard anodic oxidation method was used to form a decorative layer with a thickness of 45 μm. Hard anodizing conditions: temperature is 10°C, time is 40min, pulse waveform is positive square wave pulse, duty cycle is 80%, frequency is 800Hz, current density is 5A / dm 2 , wherein the oxidizing solution is made up of sulfuric acid, oxalic acid and water, based on 1L of oxidizing solution, the content of sulfuric acid is 180g, the content of oxalic acid is 10g, and the balance is water; in addition, the metal casing of communication equipment is obtained in the same way.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
widthaaaaaaaaaa
Login to View More

Abstract

Provided are a metal housing for a communication device, a preparation method therefor, and applications thereof. The preparation method for the metal housing comprises: 1) injecting plastic on the inner surface of a metal housing (1) to form a plastic layer (2) provided with at least one narrow gap; 2) forming a decorative layer (3) on the outer surface of the metal housing (1); 3) forming a protective layer on the outer surface of the decorative layer (3); 4) etching the metal housing (1) corresponding to the narrow gap from the inner surface of the metal housing (1), so as to enable the metal housing (1) at the position of the narrow gap to penetrate through; 5) forming a colloidal stuffed piece (4); and 6) removing the protective layer.

Description

technical field [0001] The invention relates to the field of metal shells, in particular to a metal shell of a communication device and a preparation method and application 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 casing mobile phones do not have this problem. For the emerging popular metal casing mobile phones, how to solve the signal shielding problem is one of the keys to their 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 iPhone 5 / 5S. The above-mentioned prior art prevents signal shielding by filling the antenna slot with plas...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H05K5/04B32B15/08
CPCB32B15/08B32B2307/554B32B2307/714B32B2457/00H05K5/04H04M1/02
Inventor 廖重重王钰代灵娜覃惠珍陈梁
Owner BYD CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com