CN218183400U

CN218183400U - Rear shell for mobile phone

Info

Publication number: CN218183400U
Application number: CN202221766025.9U
Authority: CN
Inventors: 张昌稳
Original assignee: Innotack Inc
Current assignee: Innotack Inc
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-12-30
Anticipated expiration: 2032-07-08

Abstract

The utility model relates to the technical field of mobile phone backshells, and discloses a backshell for a mobile phone, which comprises a protective layer and an isolation layer positioned inside the protective layer, wherein the upper surface of the isolation layer is provided with a printing texture layer, and the lower surface of the isolation layer is provided with an image-text layer; compared with the mobile phone rear shell of the existing PC composite board, the mobile phone rear shell of the utility model has the advantages that the texture effect is clearer and more beautiful due to the adoption of two texture processing processes; meanwhile, compared with a PC composite board, the glass fiber board with the supporting function has higher strength and better falling resistance; furthermore, the PC material has the characteristics of easy water absorption, easy bubble generation after high temperature and the like, and has higher appearance reject ratio of warping, bubbles and the like in the production process, so the process well solves the problem; in addition, the hot melt adhesive is used for compounding, and compared with the traditional OCA (optically clear adhesive), the poor phenomenon of fillet bubble rebound and the like caused by overlarge stress can be avoided for the rear shell of the special-shaped mobile phone with a large bend angle and the like.

Description

Rear shell for mobile phone

Technical Field

The utility model relates to a cell-phone backshell technical field specifically is a cell-phone backshell with optimize composite bed structure.

Background

With the popularization of 5G signals and the change of electronic products, the color and texture decoration effect and the mode of the rear cover of the mobile phone are more and more diversified.

According to conventional mobile phone plastic rear cover decoration, a mode that a composite plate of PC and PMMA is pasted after membrane decoration is adopted, and in the process of compounding the PC and the PMMA, due to the fact that the water absorption rate of the PC plate is difficult to control and a high-temperature manufacturing process is adopted in the compounding process, poor appearances such as warping and bubbles in the production process are difficult to control. In addition, the decoration of PC back cover generally uses colored decorative diaphragm to pass through OCA pressure sensitive adhesive laminating PC face, because the various special-shaped designs of present cell-phone shape, to big fillet or curved surface unevenness's place, the OCA is glued and is pasted and appear the bubble bounce easily, makes the outward appearance NG, and the processing procedure yield is difficult to promote.

At present, most mobile phone rear cover manufacturers look for better solutions to improve the current bad conditions aiming at the bad decoration of the mobile phone plastic rear cover.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a backshell for cell-phone, this backshell for cell-phone have effectively solved warpage, bubble, subsides that prior art that proposes in the above-mentioned background art exists and have covered bad problems such as bubble bounce-back through the composite bed structure who optimizes.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a backshell for cell-phone, includes the inoxidizing coating and is located the inside isolation layer of inoxidizing coating, its characterized in that: the upper surface of isolation layer is equipped with the printing texture layer, the lower surface of isolation layer is equipped with the picture and text layer, the upper surface on printing texture layer is equipped with the base plate layer.

Optionally, the isolation layer includes the UV barrier layer, the lower fixed surface of UV barrier layer is connected with PET, the upper surface of UV barrier layer is equipped with first priming paint layer, PET's lower surface is equipped with second priming paint layer.

Optionally, the printing texture layer comprises an ink printing layer, a UV transfer printing texture layer is arranged on the lower surface of the ink printing layer, and the lower surface of the UV transfer printing texture layer is fixedly connected with the isolation layer through a first primer layer.

Optionally, the image-text layer comprises a coating texture layer, and the upper surface of the image-text texture layer is fixedly connected with the isolation layer through the first primer layer.

Optionally, the substrate layer includes a glass fiber plate, a hot-melt adhesive layer is fixedly connected to the lower surface of the glass fiber plate, and the glass fiber plate is fixedly connected to the printing texture layer through the hot-melt adhesive layer.

Compared with the mobile phone backshell of the existing PC composite board, the mobile phone backshell scheme provided by the utility model adopts an optimized composite layer structure and adopts two texture layers for compounding, so that the texture effect is clearer and more beautiful; compared with a PC composite board, the glass fiber board with the supporting function has higher strength and better falling resistance.

Drawings

FIG. 1 is an enlarged schematic view of the overall structure section of the present invention;

FIG. 2 is a schematic view of the overall structure of the present invention;

fig. 3 is a schematic view of the image of the present invention.

In the figure; 1. an isolation layer; 101. a UV blocking layer; 102. PET; 103. a first primer layer; 104. a second primer layer; 2. printing a texture layer; 201. printing ink printing layer; 202. UV transfers the texture layer; 3. an image-text layer; 301. coating a texture layer; 4. a substrate layer; 401. a glass fiber board; 402. a hot melt adhesive layer; 5. and (4) a protective layer.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.

Referring to fig. 1-3, the utility model provides a mobile phone backshell, including inoxidizing coating 5 and the inside isolation layer 1 that is located inoxidizing coating 5, the upper surface of isolation layer 1 is equipped with printing texture layer 2, and the lower surface of isolation layer 1 is equipped with picture and text layer 3, and the upper surface of printing texture layer 2 is equipped with the base plate layer.

The isolation layer 1 comprises a UV blocking layer 101, PET102 is fixedly connected to the lower surface of the UV blocking layer 101, a first primer layer 103 is arranged on the upper surface of the UV blocking layer 101, a second primer layer 104 is arranged on the lower surface of the PET102, and the PET102 has a UV blocking function.

The printing texture layer 2 comprises an ink printing layer 201, a UV transfer printing texture layer 202 is arranged on the lower surface of the ink printing layer 201, the lower surface of the UV transfer printing texture layer 202 is fixedly connected with the isolation layer 1 through a first primer layer 103, and the printing texture layer 2 is formed by carrying out UV texture transfer printing and PVD coating on the first primer layer 103 of the isolation layer 1 or printing ink.

The image-text layer 3 comprises a coating texture layer 301, the upper surface of the coating texture layer 301 is fixedly connected with the isolation layer 1 through the first primer layer 103, the image-text layer 3 is formed by coating hardening liquid on the printing texture layer 2 of the isolation layer 1 through a coating process, the hardening liquid can increase texture decoration in the coating process, and meanwhile, the hardening liquid has the hardness of 6H and has the effects of wear resistance, scratch resistance and fingerprint resistance.

The substrate layer 4 comprises a glass fiber plate 401, the lower surface of the glass fiber plate 401 is fixedly connected with a hot melt adhesive layer 402, the glass fiber plate 401 is fixedly connected with the printing texture layer 2 through the hot melt adhesive layer 402, and the glass fiber plate 401 has the advantages of high strength and good stiffness and plays a good supporting role for the whole mobile phone rear cover.

When the scheme of the mobile phone rear shell provided by the embodiment is actually applied, the problems that the existing PC material is easy to absorb water, bubbles are easy to generate after high temperature and the like, and the appearance reject ratio of warping, bubbles and the like is high in the production process can be effectively solved.

In addition, the mobile phone backshell scheme that this example provided uses hot melt adhesive layer to realize compound when the actual application, compares in traditional OCA pressure sensitive adhesive, to special-shaped mobile phone backshells such as big bent angle, can not appear that the too big fillet bubble that leads to of stress is kick-backed etc. badly.

The detailed description of the known functions and the known components is omitted in the embodiment of the disclosure, and in order to ensure the compatibility of the equipment, the adopted operation means are consistent with the parameters of the instruments on the market.

It should be noted that, in this document, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions, and the terms "comprise", "comprises", or any other variation thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus, wherein standard parts used are commercially available and may be custom-built from the specification and drawings, the specific connections of the various parts are made by conventional means such as bolts, rivets, welding, etc., the machines, parts, and apparatuses are of a type conventional in the art, and the structures and principles of the parts known to those skilled in the art are known in the technical manuals or by conventional experimental methods.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a backshell for cell-phone, includes inoxidizing coating (5) and is located inside isolation layer (1) of inoxidizing coating (5), its characterized in that: the upper surface of isolation layer (1) is equipped with printing texture layer (2), the lower surface of isolation layer (1) is equipped with picture and text layer (3), the upper surface of printing texture layer (2) is equipped with base plate layer (4).

2. A rear case for a cellular phone according to claim 1, wherein: isolation layer (1) includes UV barrier layer (101), the lower surface fixedly connected with PET (102) of UV barrier layer (101), the upper surface of UV barrier layer (101) is equipped with first priming paint layer (103), the lower surface of PET (102) is equipped with second priming paint layer (104).

3. A rear case for a cellular phone according to claim 1, wherein: the printing texture layer (2) comprises an ink printing layer (201), a UV transfer printing texture layer (202) is arranged on the lower surface of the ink printing layer (201), and the lower surface of the UV transfer printing texture layer (202) is fixedly connected with the isolation layer (1) through a first primer layer (103).

4. A rear case for a cellular phone according to claim 1, wherein: the image-text layer (3) comprises a coating texture layer (301), and the upper surface of the coating texture layer (301) is fixedly connected with the isolation layer (1) through a second primer layer (104).

5. A rear case for a cellular phone according to claim 1, wherein: the base plate layer (4) comprises a glass fiber plate (401), the lower surface of the glass fiber plate (401) is fixedly connected with a hot melt adhesive layer (402), and the glass fiber plate (401) is fixedly connected with the printing texture layer (2) through the hot melt adhesive layer (402).