Back panel structure of mobile phone shell

Abstract

The utility model discloses a back panel structure of a mobile phone shell, which comprises a panel body, one side of the panel body is provided with a lens groove matched with a mobile phone, the panel body further comprises a first HDPP plate, the upper surface of the first HDPP plate is bonded with a first glass fiber plate through glue, the upper surface of the first glass fiber plate is fixedly bonded with a second HDPP plate, and the second HDPP plate is fixedly bonded with a second glass fiber plate. A PMI foam board is fixedly adhered to the upper surface of the second HDPP, a second glass fiber board is fixedly adhered to the PMI foam board, a polypropylene board is fixedly adhered to the upper surface of the second glass fiber board, a third HDPP board is fixedly adhered to the upper surface of the polypropylene board, and third glass fiber boards are adhered to the two sides of the upper surface of the third HDPP board; a carbon fiber plate is arranged between the two third glass fiber plates and located on the upper surfaces of the third HDPP plates, and a fourth HDPP plate is fixedly bonded to the upper surface of the carbon fiber plate. The mobile phone back protection device has good internal structural strength, can effectively resist external force, is higher in practicability and better in impact resistance, and can effectively protect the back of a mobile phone.

Description

Technical Field

[0001] The utility model relates to the technical field of internal structures of mobile phone cases, in particular to a back panel structure of a mobile phone case. Background Art

[0002] A mobile phone is a portable communication device that allows users to make voice calls, send text messages, browse the Internet, and use various applications anytime and anywhere. The definition of a mobile phone is a mobile phone, which is a portable telephone terminal that can be used in a wide range of areas;

[0003] Mobile phones were originally invented to meet people's needs for long-distance communication. Over time, the functions of mobile phones have continued to expand and have become a very important tool in people's lives. With diverse functions, they bring people a better life experience.

[0004] In modern society, most smartphones are equipped with mobile phone cases when they are used. The main function of mobile phone cases is to protect the mobile phone from bumps. However, when traditional mobile phone cases are produced, most of them use one material for integrated molding and processing design. Therefore, the impact resistance of the back panel of the mobile phone case only comes from the impact resistance of the material of the mobile phone case itself. The comprehensive resistance to external forces is poor, the structural strength is low, and it cannot better protect the mobile phone, affecting the performance of use. Utility Model Content

[0005] The purpose of the present invention is to provide a back panel structure of a mobile phone case to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a back panel structure of a mobile phone case, comprising a panel body, a lens slot adapted to a mobile phone being opened on one side of the panel body, the panel body also comprising a No. 1 HDPP board, a No. 1 glass fiber board being bonded to the upper surface of the No. 1 HDPP board by glue, a No. 2 HDPP board being fixedly bonded to the upper surface of the No. 1 glass fiber board, a PMI foam board being fixedly bonded to the upper surface of the No. 2 HDPP, a No. 2 glass fiber board being fixedly bonded to the upper surface of the No. 2 HDPP, a polypropylene board being fixedly bonded to the upper surface of the No. 2 glass fiber board, a No. 3 HDPP board being fixedly bonded to the upper surface of the No. 2 glass fiber board, a No. 3 glass fiber board being fixedly bonded to the upper surface of the polypropylene board, a No. 3 HDPP board being fixedly bonded to the upper surface of the No. 3 HDPP board, No. 3 glass fiber boards being bonded to both sides of the upper surface of the No. 3 HDPP board, a carbon fiber board being provided between the two No. 3 glass fiber boards and located on the upper surface of the No. 3 HDPP board, a No. 4 HDPP board being fixedly bonded to the upper surface of the carbon fiber board.

[0007] Preferably, the No. 1 glass fiber board and the No. 2 glass fiber board are low-density glass fiber boards.

[0008] Preferably, the polypropylene board is a low-density polypropylene board.

[0009] Preferably, the No. 3 glass fiber board is a medium-density glass fiber board.

[0010] Preferably, the carbon fiber plate is composed of a combination of unidirectional vertically woven carbon fiber filaments.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model has high-strength use effect and its exterior has good corrosion resistance and aging resistance, effectively improving the overall use effect of the plate body of the utility model, and has the comprehensive use performance of high strength, light weight, deformation resistance and aging resistance, effectively improving the practicality and service life of the utility model. The plate body of several materials is processed and formed in an integrated manner, so that the utility model has good internal structural strength, can effectively resist external forces, is more practical, and has better impact resistance, which can effectively improve the impact protection effect of the back of the mobile phone;

[0013] At the same time, a PMI foam board is arranged in the middle layer position of the panel body. The PMI foam board can be used as the middle layer. The specific strength and specific modulus of its foam are higher than those of PU and PVC. It has the characteristics of light weight and high strength, and has good mechanical properties. It can improve the overall use effect and has good mechanical properties. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of the outer surface of the back panel of a mobile phone case according to an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the inner surface of the back plate of a mobile phone case according to an embodiment of the utility model when viewed from above;

[0016] Figure 3 This is a schematic diagram of the explosive disassembly structure of the back panel of a mobile phone case according to an embodiment of the utility model.

[0017] In the figure: 1. Panel body; 101. HDPP board No. 1; 102. Fiberglass board No. 1; 103. HDPP board No. 2; 104. PMI foam board; 105. Fiberglass board No. 2; 106. Polypropylene board; 107. HDPP board No. 3; 108. Fiberglass board No. 3; 109. Carbon fiber board; 1010. HDPP board No. 4; 2. Lens slot. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0021] See also Figure 1-3 The utility model provides an embodiment of a mobile phone case back panel structure, comprising a panel body 1, a lens slot 2 adapted to a mobile phone is provided on one side of the panel body 1, thereby ensuring normal exposure of the mobile phone camera to avoid obstruction;

[0022] The panel body 1 also includes a No. 1 HDPP board 101. The upper surface of the No. 1 HDPP board 101 is bonded with a No. 1 glass fiber board 102 by glue. The thickness of the No. 1 glass fiber board 102 is 0.8 mm. The upper surface of the No. 1 glass fiber board 102 is fixedly bonded with a No. 2 HDPP board 103. The upper surface of the No. 2 HDPP is fixedly bonded with a PMI foam board 104. The PMI foam board 104 is fixedly bonded with a No. 2 glass fiber board 105.

[0023] The first glass fiber board 102 and the second glass fiber board 105 are low-density glass fiber boards, and the thickness of the second glass fiber board 105 is 0.77 mm.

[0024] A polypropylene board 106 is fixedly bonded to the upper surface of the second glass fiber board 105. The polypropylene board 106 is a low-density polypropylene board with a thickness of 0.2 mm.

[0025] A third HDPP board 107 is fixedly bonded to the upper surface of the polypropylene board 106. A third glass fiber board 108 is bonded to both sides of the upper surface of the third HDPP board 107. The third glass fiber board 108 is a medium-density glass fiber board with a thickness of 0.12 mm.

[0026] The medium-density glass fiber board has a uniform internal structure, moderate density, good dimensional stability, small deformation, and moderate physical and mechanical properties, which enables it to maintain stable performance in various environments, not easy to deform, and has good anti-deformation effect;

[0027] At the same time, the medium-density glass fiber board has good static bending strength, plane tensile strength and elastic modulus due to its uniform fiber structure, which can effectively improve the internal strength of the backboard structure;

[0028] A carbon fiber plate 109 is provided between the two No. 3 glass fiber plates 108 and on the upper surface of the No. 3 HDPP plate 107. Furthermore, the carbon fiber plate 109 is composed of a combination of unidirectional vertically woven carbon fiber filaments. The thickness of the carbon fiber plate 109 is 0.12 mm. The unidirectional vertically woven carbon fiber filaments provide good tensile strength in the vertical direction, thereby effectively improving the structural strength of the back panel of the mobile phone of the present invention while having a lighter weight.

[0029] Among them, a No. 4 HDPP board 1010 is fixedly bonded to the upper surface of the carbon fiber board 109.

[0030] In this embodiment, the HDPP board is a high-density polypropylene material, and the thickness of the No. 1 HDPP board 101 is 0.1 mm, the thickness of the No. 2 HDPP board 103, the No. 3 HDPP board 107 and the No. 4 HDPP board are all 0.06 mm. High-density polypropylene material is a high-density, side-chain-free, highly crystalline linear polymer with excellent comprehensive performance. Due to its hollow structure, the HDPP material has a lighter weight and is corrosion-resistant and anti-aging.

[0031] Working principle:

[0032] When the utility model is in use, it can be directly used as a back plate of a mobile phone shell, and can also be placed inside the mobile phone shell to be used as an internal reinforcement structure.

[0033] The mobile phone back panel of the utility model is provided with several layers of glass fiber boards. The medium-density glass fiber boards have a uniform internal structure, moderate density, good dimensional stability, small deformation, and moderate physical and mechanical properties. This enables it to maintain stable performance in various environments, is not easy to deform, and has a good anti-deformation effect.

[0034] At the same time, the medium-density glass fiber board has good static bending strength, plane tensile strength and elastic modulus due to its uniform fiber structure, which can effectively improve the internal strength of the backboard structure;

[0035] At the same time, the present invention is provided with a carbon fiber plate 109, which has good tensile strength in the vertical direction by unidirectional vertical weaving of the carbon fiber plate, thereby effectively improving the structural strength of the back panel of the mobile phone of the present invention and having a lighter weight;

[0036] Furthermore, by arranging HDPP boards on the upper and lower outer surfaces of the fiberboard, in actual use, the board has a high-strength use effect and its exterior has good corrosion resistance and aging resistance, effectively improving the overall use effect of the board body of the utility model, and has the comprehensive use performance of high strength, light weight, deformation resistance, and aging resistance, effectively improving the practicality and service life of the utility model. By integrating the board bodies of several materials for processing and forming, the utility model has good internal structural strength, can effectively resist external forces, is more practical, has better impact resistance, and can effectively protect the back of the mobile phone.

[0037] At the same time, a PMI foam board 104 is arranged in the middle layer position of the panel body 1. The PMI foam board 104 can be used as the middle layer. The specific strength and specific modulus of its foam are higher than those of PU and PVC. It has the characteristics of light weight and high strength, and has good mechanical properties. It can improve the overall use effect and has good mechanical properties.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A mobile phone case back panel structure, characterized in that: The invention comprises a panel body (1), wherein a lens slot (2) adapted to a mobile phone is provided on one side of the panel body (1), and the panel body (1) further comprises a No. 1 HDPP board (101), wherein the upper surface of the No. 1 HDPP board (101) is bonded with a No. 1 glass fiber board (102) by glue, wherein the upper surface of the No. 1 glass fiber board (102) is fixedly bonded with a No. 2 HDPP board (103), wherein the upper surface of the No. 2 HDPP board is fixedly bonded with a PMI foam board (104), and wherein the PMI foam board (104) is fixedly bonded with the No. 2 glass fiber board. (105), a polypropylene board (106) is fixedly bonded to the upper surface of the second glass fiber board (105), a third HDPP board (107) is fixedly bonded to the upper surface of the polypropylene board (106), a third glass fiber board (108) is bonded to both sides of the upper surface of the third HDPP board (107), a carbon fiber board (109) is provided between the two third glass fiber boards (108) and located on the upper surface of the third HDPP board (107), and a fourth HDPP board (1010) is fixedly bonded to the upper surface of the carbon fiber board (109).

2. The mobile phone case back panel structure according to claim 1, characterized in that: The first glass fiber board (102) and the second glass fiber board (105) are low-density glass fiber boards.

3. The mobile phone case back panel structure according to claim 1, characterized in that: The polypropylene plate (106) is a low-density polypropylene plate.

4. The mobile phone case back panel structure according to claim 1, characterized in that: The No. 3 glass fiber board (108) is a medium-density glass fiber board.

5. The mobile phone case back panel structure according to claim 1, characterized in that: The carbon fiber plate (109) is composed of a combination of unidirectional vertically woven carbon fiber filaments.

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