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A kind of shell and its preparation method and electronic product

A technology for electronic products and casings, which is applied to casings and their preparation methods and the field of electronic products, can solve the problems of increasing casing thickness, defect rate, and small bonding force, and achieves reducing production costs, improving product yields, and reducing screen sticking processes. Effect

Active Publication Date: 2020-04-24
BYD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The casing prepared by this method has the following major disadvantages: (1) the bonding force between the glass and the metal substrate is small, the bonding is not tight, there are gaps, it is not waterproof, and it is easy to fall off; (2) basically all the laminations are There is no step-free combination, resulting in protruding glass, which not only increases the thickness of the shell, but also increases the risk of broken screen; (3) There are many preparation processes, which increase the production cost and increase the defect rate

Method used

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  • A kind of shell and its preparation method and electronic product

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preparation example Construction

[0022] In a second aspect, the present invention provides a method for preparing a shell, the method comprising:

[0023] (1) coating activator on the edge of glass cover plate, drying;

[0024] (2) Combining the glass cover plate obtained in step (1) with the metal substrate frame by injection molding.

[0025] In the method of the present invention, preferably, the method further includes: in step (1), before coating the activator, coating ink at least on the edge of the glass cover and curing it. Among them, it can be determined which parts of the glass cover to apply ink to according to the application of the casing. The function of shielding the ITO circuit; if the shell is used as the shell of the back screen cover, coating ink on the inner surface (including the edge of the inner surface) of the glass cover mainly plays the role of displaying the color of the back screen cover shell.

[0026] In the method of the present invention, in step (1), in order to improve the...

Embodiment 1

[0069] (1) Roughen the edge of the OGS touch screen tempered glass, and use a 70T screen to print UV ink on the edge of the glass. The thickness of the UV ink is 10 μm, and then expose it for 3 minutes under a 900kW exposure machine; use 380 mesh The activator is screen-printed on the UV ink with a screen printing thickness of 10 μm, and then the glass is dried in a tunnel dryer at 90°C for 90 minutes; the activator is a polyurethane system, including polyurethane, acetone and ethylenediamine , based on the weight of the activator, the contents of polyurethane, acetone and ethylenediamine are respectively 88% by weight, 8% by weight and 4% by weight.

[0070] (2) The aluminum alloy is processed and shaped, polished, chemically polished, sand blasted, anodized, microporously treated, and film-coated in sequence to obtain an aluminum alloy substrate frame, and then the same activator as in step (1) is coated Distributed on the inner edge of the aluminum alloy substrate frame, th...

Embodiment 2

[0074] (1) Roughen the edge of the OGS touch screen tempered glass, use a 70T screen to print thermosetting ink on the edge of the glass, the thickness of the thermosetting ink is 15 μm, and then dry it in an oven at 80°C for 90 minutes; use 300 The purpose screen is to screen-print the activator on the heat-setting ink. The thickness of the screen-printed activator is 15 μm, and then put the glass in a tunnel dryer at 80°C to dry for 110 minutes; the activator is a polyurethane system, including polyurethane, ethyl acetate and ethylene glycol, based on the weight of the activator, the contents of polyurethane, ethyl acetate and ethylene glycol are respectively 85% by weight, 10% by weight and 5% by weight.

[0075] (2) The aluminum alloy is processed and shaped, polished, chemically polished, sand blasted, anodized, microporously treated, and film-coated in sequence to obtain an aluminum alloy substrate frame, and then the same activator as in step (1) is coated Distributed o...

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Abstract

The invention relates to the technical field of electronic products, and discloses a casing, a preparation method thereof, and an electronic product. The casing includes a glass cover, a plastic frame and a frame of a metal substrate. The wood frames are combined sequentially without steps. The method includes: (1) coating an activator on the edge of the glass cover plate and drying; (2) combining the glass cover plate obtained in the step (1) with the frame of the metal base material by injection molding. In the shell of the present invention, the glass cover plate and the frame of the metal base material are combined seamlessly and without steps, the bonding force between the glass and the metal base material is high, the risk of broken screen is low, and the waterproof ability is strong.

Description

technical field [0001] The invention relates to the technical field of electronic products, in particular to a casing, a preparation method thereof and electronic products. Background technique [0002] In the prior art, the combination of the glass front screen and the metal substrate frame is basically directly assembled with glue. For example, a plastic gasket (soft) is placed between the glass and the metal substrate frame for the mobile phone screen. Assemble by applying glue to glass and metal substrate frames. Therefore, the bonding method of the glass and the metal substrate frame determines the bonding force between the metal substrate and the glass. The casing prepared by this method has the following major disadvantages: (1) the bonding force between the glass and the metal substrate is small, the bonding is not tight, there are gaps, it is not waterproof, and it is easy to fall off; (2) basically all the laminations are Failure to achieve step-free bonding lead...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/14B29C45/78B29C45/17H04M1/02B29K75/00B29K69/00B29K81/00
CPCB29C45/14467B29C45/17B29C45/78B29C2945/76531B29K2069/00B29K2075/00B29K2081/04H04M1/0266B29C45/14311B29C45/14434B29C2045/14868B29K2705/00B29K2709/08C08G18/3206C08G18/3228C09J175/04H04M1/02B29C45/0053B29C45/14B29C45/72B29C2045/0079H04M1/0202B29K2077/00B29K2309/08B29K2705/02B29L2031/3481C08J5/043C08J2369/00C08J2377/00C08J2381/02C09D11/101C09J5/02C09J133/04C09J163/00C09J175/12C09J179/08C09J2433/00C09J2463/00C09J2475/00C09J2479/08H05K5/03H05K5/04
Inventor 赵长涛王继厚刘晨岑
Owner BYD CO LTD
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