CN218041439U

CN218041439U - Thin composite mobile phone rear shell

Info

Publication number: CN218041439U
Application number: CN202222324234.4U
Authority: CN
Inventors: 尤祖阳; 蔡辉蓉; 张文锥
Original assignee: Tongda Shishi Technology Co ltd
Current assignee: Tongda Shishi Technology Co ltd
Priority date: 2022-08-31
Filing date: 2022-08-31
Publication date: 2022-12-13
Anticipated expiration: 2032-08-31

Abstract

The utility model discloses a thin composite mobile phone rear shell, which comprises a composite board body, wherein the composite board body is provided with a PC surface and a PMMA surface, and the PC surface is sequentially provided with a UV texture layer, a plating layer and a printing ink layer; the composite board further comprises a glass fiber board matched with the composite board body, the thickness of the glass fiber board is 0.25mm, the thickness of the composite board body is 0.125mm, an adhesive layer is coated on the surface of the ink layer, and the glass fiber board is bonded with the composite board body through the adhesive layer. Compared with the prior art, the composite board body is used for embodying the manufacture of the appearance of the mobile phone rear shell to realize the appearance effect of the mobile phone rear shell, and then the glass fiber board is used for providing the strength of the whole mobile phone rear shell, so that the thickness of the whole mobile phone rear shell can reach 0.4-0.5mm, and the requirement of thin type of the existing mobile phone is met.

Description

Thin composite mobile phone rear shell

Technical Field

The utility model relates to a cell-phone accessory field, in particular to cell-phone backshell.

Background

The traditional sold mobile phone rear cover battery cover is generally made of plastic, glass, metal (mainly made of aluminum) and ceramic, and the traditional sold mobile phone rear cover battery cover has different types of defects. Such as: 1) The rear cover of the plastic has low cost, easy processing and no electromagnetic signal interference, but has the problems of non-scratch resistance, poor texture, poor structural strength, poor heat dissipation and the like on the surface; 2) Although the surface of the glass rear cover is resistant to scratch, good in texture and free of electromagnetic signal interference, the glass is easy to fall and cannot be structurally supported, so that a metal middle frame is designed to be matched with the glass to serve as a structural support of the whole machine, and the glass rear cover is high in cost and complex in structure; 3) Although the metal aluminum rear cover has the advantages of good structure degree, good heat dissipation, good scratch resistance and the like, all the metal rear covers need to be embedded with plastic antenna strips at the upper end and the lower end respectively so that electromagnetic signals can be emitted normally, and the appearance can not be kept consistent. Therefore, a composite plate mobile phone rear cover is newly provided on the market, the composite plate is formed by compounding a PMMA plate and a PC membrane, the composite plate can be molded into 2.5D and 3D mobile phone rear covers by hot press molding, and the PMMA in the composite plate has high wear resistance and hardness and good hand feeling, so that the composite plate is widely applied to some middle and high-end mobile phones. Then, the whole thickness of the rear cover of the composite board mobile phone can not be reduced all the time due to the function and the use specificity, so that the thickness of the rear cover of the existing composite board mobile phone is about 0.7mm-0.8 mm.

Accordingly, the present inventors have made extensive studies on the above problems, and as a result, the present invention has been made.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a thin composite mobile phone rear shell with the thickness of 0.4-0.5mm.

In order to achieve the above object, the solution of the present invention is as follows:

a thin composite mobile phone rear shell comprises a composite board body, wherein the composite board body is provided with a PC surface and a PMMA surface, and the PC surface is sequentially provided with a UV texture layer, an electroplated layer and an ink layer; the composite board comprises a composite board body and is characterized by further comprising a glass fiber board matched with the composite board body, the thickness of the glass fiber board is 0.25mm, the thickness of the composite board body is 0.125mm, an adhesive layer is coated on the surface of the ink layer, and the glass fiber board is bonded with the composite board body through the adhesive layer.

The adhesive layer is a UV glue layer.

The PMMA surface is provided with a UV transfer printing texture layer, and the total thickness of the UV transfer printing texture layer, the composite board body, the UV texture layer, the electroplated layer, the ink layer and the glass fiber board is 0.4-0.5mm.

And a protective membrane is adhered to one surface of the glass fiber board, which is back to the ink layer.

After the technical scheme is adopted, the utility model discloses a slim compound cell-phone backshell utilizes the composite sheet body to be used for embodying the preparation of the outward appearance of cell-phone backshell, realize the outward appearance effect of cell-phone backshell, later provide the intensity of whole cell-phone backshell through the glass fine board, and the thickness of glass fiber plate thickness and composite sheet body is thinner, the thickness that makes whole cell-phone backshell can reach 0.4-0.5mm, under the original outward appearance effect of protection cell-phone backshell and the prerequisite that does not influence bulk strength like this, whole thickness greatly reduced, satisfy the slim demand of present cell-phone requirement.

Drawings

Fig. 1 is a sectional view of the utility model.

Detailed Description

In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.

The utility model discloses a slim compound cell-phone backshell, as shown in figure 1, including composite sheet body 1, composite sheet body 1 has PC face and PMMA face, has a UV texture layer 2, a plating layer 3 and a printing ink layer 4 on the PC face in proper order, and what this composite sheet body 1's processing adopted is prior art, is not the innovation part of this patent application.

This neotype innovation lies in: the composite board further comprises a glass fiber board 5 matched with the composite board body 1, the thickness of the glass fiber board 5 is 0.25mm, the thickness of the composite board body 1 is 0.125mm, an adhesive layer 6 is coated on the surface of the ink layer, the adhesive layer is preferably a UV (ultraviolet) glue layer, and the glass fiber board 5 is bonded with the composite board body 1 through the adhesive layer 6.

In the novel PMMA surface is provided with a UV transfer texture layer 7.

In this novel, the one side subsides on glass fiber board 5 printing ink layer dorsad are equipped with the diaphragm of a protection film, and this diaphragm is the protection film that present cell-phone is commonly used.

The utility model discloses a slim compound cell-phone backshell realizes through following step:

1. the composite board processing technology comprises the steps of firstly silk-screening a LOGO layer on a PC surface of a composite board body, carrying out UV transfer printing on the LOGO layer to form a UV texture layer, plating a coating layer on the surface of the UV texture layer, and finally silk-screening a printing ink layer on the coating surface to form a well-added slice;

2. coating a UV glue layer on the processed thin ink layer, and then bonding the glass fiber plate on the ink layer to form a bonded plate;

3. surface treatment, make the positive texture effect that a UV changes the line on the PMMA face of laminating panel, this positive texture adopts rubbing mode to process, can form the effect of surperficial flash point and holographic line, later pastes one deck protection film on the glass fiber board, forms the half-finished product of lid behind the cell-phone, covers half-finished product behind the cell-phone at last and carries out CNC processing with the cell-phone and can obtain the cell-phone backshell.

The above-mentioned embodiments and drawings do not limit the structure of the present invention, and any suitable changes or modifications thereof by those skilled in the art should not be considered as departing from the scope of the present invention.

Claims

1. A thin composite mobile phone rear shell comprises a composite board body, wherein the composite board body is provided with a PC surface and a PMMA surface, and the PC surface is sequentially provided with a UV texture layer, an electroplated layer and an ink layer; the method is characterized in that: the composite board comprises a composite board body and is characterized by further comprising a glass fiber board matched with the composite board body, the thickness of the glass fiber board is 0.25mm, the thickness of the composite board body is 0.125mm, an adhesive layer is coated on the surface of the ink layer, and the glass fiber board is bonded with the composite board body through the adhesive layer.

2. The back cover of thin composite mobile phone according to claim 1, wherein: the adhesive layer is a UV glue layer.

3. The back cover of thin composite mobile phone according to claim 1, wherein: the PMMA surface is provided with a UV transfer printing texture layer, and the total thickness of the UV transfer printing texture layer, the composite board body, the UV texture layer, the electroplated layer, the ink layer and the glass fiber board is 0.4-0.5mm.

4. The rear cover of thin composite mobile phone as claimed in claim 1, wherein: and a protective membrane is adhered to one surface of the glass fiber board, which is back to the ink layer.