Carbon fiber mobile phone middle frame and mobile phone

Abstract

The utility model relates to the technical field of mobile phone accessories, in particular to a carbon fiber mobile phone middle frame and a mobile phone. The carbon fiber mobile phone middle frame comprises a plate body and a frame body which are made of carbon fibers, the plate body is arranged in the frame body, and the plate body and the frame body are combined into a whole through hot pressing; and a bottom layer and a protective layer are arranged on the frame body. The plate body and the frame body are made of the carbon fiber materials, the plate body and the frame body are respectively formed firstly, and then the plate body and the frame body are combined together in a hot pressing mode, so that the middle frame of the mobile phone is lighter in weight, and light-weight design of the mobile phone is more facilitated. And a bottom layer and a protective layer are arranged on the frame body. The base layer has color and luster, can provide various colors for the mobile phone middle frame, and is better in aesthetic feeling. The protective layer has strong hardness and wear resistance, and can provide a protection effect for the mobile phone middle frame. In addition, the plate body and the frame body are manufactured separately, the thickness of the plate body and the thickness of the frame body can be inconsistent, the use amount of carbon fibers can be saved, and cost is lower.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone accessories, in particular to a carbon fiber mobile phone middle frame and a mobile phone. Background Art

[0002] The middle frame of a mobile phone is one of the accessories of the mobile phone, and components such as a circuit board and a screen are installed on the middle frame of the mobile phone. Some carbon fiber mobile phone middle frames on the market are made of a metal frame and a carbon fiber board. The metal frame usually uses aluminum or stainless steel. For lightweight mobile phones, these two types of mobile phone middle frames still have the problem of being relatively heavy.

[0003] For example, a mobile phone frame made of stainless steel carbon fiber composite material disclosed in Chinese Patent Application No.: CN201620891433.5. It is made of a stainless steel frame and a carbon fiber plate body, and the weight is still relatively heavy.

[0004] Another example is a high-strength mobile phone frame disclosed in Chinese Patent Application No.: CN202120688451.4. It is made of a combination of aluminum and carbon fiber to form a mobile phone frame, and there is also the problem of being relatively heavy. Content of the Utility Model

[0005] In view of this, aiming at the deficiencies existing in the prior art, the main purpose of the present utility model is to provide a carbon fiber mobile phone middle frame, which is lighter in weight and more in line with the requirements of lightweight, thus overcoming the deficiencies of the prior art.

[0006] To achieve the above purpose, the present utility model adopts the following technical solutions:

[0007] The present application provides a carbon fiber mobile phone middle frame, including a plate body and a frame body made of carbon fiber. The plate body is arranged in the frame body, and the plate body and the frame body are integrally formed by hot pressing; a primer layer and a protective layer are arranged on the frame body.

[0008] Preferably, a flange is arranged inside the frame body, and the plate body is lapped on the flange.

[0009] Preferably, the carbon fiber of the plate body and the frame body is wound around the plate body and the frame body in one of the structures of warp, weft, warp and weft, and mesh wire.

[0010] Preferably, a texture layer and / or a temperature-sensitive color-changing layer are also arranged between the primer layer and the protective layer.

[0011] Preferably, graphite paper is pasted on the inner side surfaces of the frame body and the plate body.

[0012] Preferably, the thickness of the plate body is between 0.5 - 1 mm, and the thickness of the frame body is between 0.5 - 2 mm.

[0013] Preferably, snap holes are provided on the outer periphery of the frame body; routing holes are provided between the upper and lower borders of the frame body and the plate body.

[0014] Preferably, a wire is clamped inside the frame body.

[0015] This application provides a mobile phone, including the carbon fiber mobile phone middle frame described above. A screen is provided on the front of the carbon fiber mobile phone middle frame, a circuit board is provided on the back of the carbon fiber mobile phone middle frame, and the back cover is snapped onto the back of the mobile phone middle frame.

[0016] Compared with the prior art, the present utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solutions, the carbon fiber material is very light, lighter than both stainless steel and aluminum. The plate body and the frame body are made of carbon fiber material. First, the plate body and the frame body are respectively formed, and then the two are combined together by hot pressing. This kind of mobile phone middle frame is lighter in weight and is more conducive to the lightweight of the mobile phone. In addition, a primer layer and a protective layer are provided on the frame body. The primer layer has a color that can provide various colors for the mobile phone middle frame, and the aesthetic feeling is better. The protective layer has strong hardness and wear resistance and can provide a protective effect for the mobile phone middle frame.

[0017] In addition, the plate body and the frame body are separately manufactured, and the thicknesses of the plate body and the frame body can be inconsistent, which can save the amount of carbon fiber used and the cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the mobile phone middle frame of an embodiment of the present utility model.

[0019] Figure 2 is a schematic diagram of the layered structure of the frame body of an embodiment of the present utility model.

[0020] Figure 3 is a schematic diagram of the mobile phone middle frame of an embodiment of the present utility model.

[0021] Figure 4 is a schematic diagram of the combined state of the plate body and the frame body of an embodiment of the present utility model.

[0022] DESCRIPTION OF THE REFERENCE NUMERALS:

[0023] 10. Plate body; 11. Graphite paper; 12. Third mold; 20. Frame body; 21. Primer layer; 22. Texture layer; 23. Temperature-sensitive color-changing layer; 24. Protective layer; 25. Flange; 26. Snap hole; 27. Routing hole; 28. Wire. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] In order to further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following describes in detail the specific implementation manners, structures, features, and effects of the present utility model in conjunction with the accompanying drawings and preferred embodiments.

[0025] Please refer to Figures 1 to 4 as shown, which shows the specific structure of the preferred embodiment of the present utility model, and is a carbon fiber mobile phone middle frame.

[0026] Among them, the plate body 10 and the frame body 20 made of carbon fiber are combined into a whole by a hot pressing process. This kind of mobile phone middle frame is lighter in weight and can better meet the lightweight requirements of the mobile phone.

[0027] This application provides a carbon fiber mobile phone middle frame, including a plate body 10 and a frame body 20 made of carbon fiber. The plate body 10 is arranged in the frame body 20, and the plate body 10 and the frame body 20 are combined into a whole by hot pressing; a primer layer 21 and a protective layer 24 are arranged on the frame body 20. The density of carbon fiber is about between 1.75 - 1.93 g / cm³, while the density of aluminum alloy is about between 2.5 - 2.88 g / cm³. Carbon fiber is a material with very light weight, which is lighter than stainless steel and aluminum. During production, the plate body 10 and the frame body 20 are first formed separately, and then connected together by a hot pressing combination method. In this embodiment, the frame body 20 is preferably wound around a profiling jig by a unidirectional yarn winding method, and then the profiling jig is placed into a first mold, and the first mold hot presses and forms the frame body 20. Multiple layers of carbon fiber cloth are stacked, and then the multiple layers of carbon fiber cloth are placed into a second mold, and the second mold presses the multiple layers of carbon fiber cloth into the plate body 10. After the plate body 10 is cut, it is sent into a third mold together with the frame body 20 for hot pressing together. After the plate body 10 and the frame body 20 are formed together, they are sent to a CNC device for finishing. After processing, other layer structures are sprayed. The primer layer 21 has a color and a substrate effect, and can provide better aesthetics for the frame body 20. In this embodiment, the outer side surface or the outer peripheral surface of the frame body 20 is sprayed with the primer layer 21 and the protective layer 24. The primer layer 21 is an acrylic resin doped with color powder, and the protective layer 24 is a transparent acrylic resin. Both are arranged on the frame body 20 by spraying. Of course, the primer layer 21 and the protective layer 24 can also be other UV-curable glues, such as epoxy resin. The primer layer 21 and the protective layer 24 can be cured by ultraviolet rays, which is beneficial to improving production efficiency.

[0028] Preferably, a flange 25 is provided inside the housing 20, and the plate body 10 is lapped on the flange 25. The flange 25 protrudes 1-5 mm from the inside of the housing 20, which is beneficial to support the plate body 10 and improve the connection strength between the plate body 10 and the housing 20. When the plate body 10 and the housing 20 are hot-pressed, the flange 25 can be fused with the plate body 10. Of course, the flange 25 is not necessary. When there is no flange 25, the plate body 10 and the housing 20 can also be connected together under the action of thermal bonding and also have good strength. The housing 20 and the plate body 10 are mainly made of carbon fiber and mixed with glue inside. The glue can be epoxy glue or polyurethane glue, etc. Therefore, the housing 20 and the plate body 10 can be bonded together.

[0029] Preferably, the carbon fiber of the plate body 10 and the housing 20 is wound around the plate body 10 and the housing 20 in one of the structures of warp, weft, warp and weft, and mesh wire. In the embodiment, the housing 20 is wound around the profiling fixture by the method of unidirectional weft yarn winding and formed by hot pressing through a mold. The plate body 10 is formed by stacking carbon fiber cloth woven with warp and weft or mesh wire and then hot pressing.

[0030] Preferably, a texture layer 23 and / or a temperature-sensitive color-changing layer 23 are also provided between the primer layer 21 and the protective layer 24. The texture layer 23 is a layered structure formed by using acrylic resin or epoxy resin as a carrier and adopting pad printing or spraying on the carrier. The texture layer 23 can be a pattern or text, etc., to improve the aesthetic feeling of the mobile phone middle frame. The temperature-sensitive color-changing layer 23 is a layered structure with acrylic resin or epoxy resin as a carrier and mixed with temperature-sensitive color-changing powder inside. The temperature-sensitive color-changing powder changes the molecular structure of the organic matter due to electron transfer at a specific temperature, thereby realizing color change. The temperature-sensitive color-changing layer 23 can change color due to temperature change, and the temperature of the mobile phone can be judged by the color, and the color change will also make the mobile phone more cool.

[0031] Preferably, graphite paper 11 is attached to the inner sides of the housing 20 and the plate body 10. The graphite paper 11 has good heat conduction performance. The graphite paper 11 is bonded to the inner sides of the housing 20 and the plate body 10 by thermal conductive silicone grease, which can improve the heat dissipation performance of the mobile phone middle frame, and further improve the heat dissipation performance of the mobile phone, which is beneficial to exploring the performance of the mobile phone.

[0032] Preferably, the thickness of the plate body 10 is between 0.5 - 1 mm, and the thickness of the frame body 20 is between 0.5 - 2 mm. The thickness of the plate body 10 can be any value such as 0.5 mm, 0.6 mm, 0.8 mm, 1.0 mm. The thickness of the frame body 20 can be any value such as 0.8, 1.0, 1.2, 1.4, 1.6, 1.8, 2.0 mm. The thickness of the plate body 10 and the frame body 20 can be the same or different. When the thicknesses of the frame body 20 and the plate body 10 are inconsistent, carbon fiber materials can be saved and costs can be reduced.

[0033] Preferably, buckling holes 26 are provided on the outer periphery of the frame body 20; routing holes 27 are provided between the upper and lower borders of the frame body 20 and the plate body 10. The buckling part of the rear cover is buckled in the buckling holes 26, which facilitates the installation of the mobile phone rear cover. The routing holes 27 facilitate the routing of the circuit board.

[0034] Preferably, metal wires 28 are clamped inside the frame body 20. The metal wires 28 can be distributed in a mesh or in strips. The metal wires 28 can reinforce the frame body 20, improve its strength and toughness, and enable the frame body 20 to have better anti-drop ability. At the same time, the metal wires 28 can also have good heat conduction performance. In this embodiment, the metal wires 28 are preferably copper wires or stainless steel wires. The wire diameter of the metal wires 28 is very small, belonging to the micron level, such as 10 microns, 15 microns, 20 microns, etc.

[0035] This application provides a mobile phone, including the carbon fiber mobile phone middle frame described above. A screen is provided on the front of the carbon fiber mobile phone middle frame, a circuit board is provided on the back of the carbon fiber mobile phone middle frame, and the rear cover is buckled on the back of the mobile phone middle frame. After setting the carbon fiber mobile phone middle frame, this kind of mobile phone is lighter in weight and better in toughness and strength.

[0036] In summary, the design focus of the present utility model is that the plate body 10 and the frame body 20 made of carbon fiber are combined by a hot pressing process to form a mobile phone middle frame with a lighter weight, which can better meet the lightweight requirements of mobile phones. The plate body 10 and the frame body 20 are made separately, and the thicknesses of the plate body 10 and the frame body 20 can be inconsistent, which can save the usage amount of carbon fiber and has a lower cost.

[0037] The above is only a preferred embodiment of the present utility model, and does not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to obtain equivalent embodiments with equivalent changes, but as long as the technical content of the present utility model is not departed from, any brief modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A carbon fiber mobile phone middle frame, characterized in that: It includes a plate body and a frame body made of carbon fiber. The plate body is arranged on the frame body, and the plate body and the frame body are integrally combined by hot pressing; a primer layer and a protective layer are arranged on the frame body.

2. The carbon fiber mobile phone middle frame according to claim 1, wherein: Flanges are arranged inside the frame body, and the plate body is lapped on the flanges.

3. A carbon fiber mobile phone middle frame according to claim 1, characterized in that: The carbon fiber of the plate body and the frame body is wound around the plate body and the frame body in one of the structures of warp, weft, warp and weft, and mesh wire.

4. The carbon fiber middle frame for mobile phone according to claim 1, characterized in that: A texture layer and / or a temperature-sensitive color-changing layer are also arranged between the primer layer and the protective layer.

5. The carbon fiber middle frame of a mobile phone according to claim 1, characterized in that: Graphite paper is pasted on the inner side surfaces of the frame body and the plate body.

6. The carbon fiber mobile phone middle frame according to claim 1, characterized in that: The thickness of the plate body is between 0.5 - 1 mm, and the thickness of the frame body is between 0.5 - 2 mm.

7. The carbon fiber mobile phone middle frame according to claim 1, wherein: Snap holes are arranged on the outer periphery of the frame body; routing holes are left between the upper and lower side frames of the frame body and the plate body.

8. The carbon fiber mobile phone middle frame according to claim 1, wherein: Metal wires are clamped inside the frame body.

9. A mobile phone, characterized in that: It includes the carbon fiber mobile phone middle frame according to any one of claims 1 - 8. A screen is arranged on the front of the carbon fiber mobile phone middle frame, a circuit board is arranged on the back of the carbon fiber mobile phone middle frame, and a rear cover is snapped onto the back of the mobile phone middle frame.

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