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Ceramic composite middle frame of mobile terminal and preparation method thereof

A ceramic composite and mobile terminal technology, applied in branch office equipment, telephone structure, telephone communication, etc., can solve the problems of inability to form an effective combination, poor affinity between metal alloy and plastic, and inability to form a reliable combination under natural conditions, etc. It achieves the effect of convenient natural design and layout, simplified in-mold injection molding process, and rich CMF effects

Active Publication Date: 2019-10-11
CHAOZHOU THREE CIRCLE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 3. The aluminum alloy middle frame, including the stainless steel middle frame, will have the phenomenon of surface coating peeling off, surface scratches and dents after long-term use in daily use by consumers, and the durability is poor
However, there are the following problems: 1. Metal alloys and plastics cannot form an effective combination in a free state, so it is necessary to activate the metal surface, which is the current mainstream T treatment process
5G uses millimeter waves for large data transmission. Millimeter waves are directional. The existing antenna scheme is expected to use more than 10 plastic partition bars for the application of 5G communication on the metal middle frame, which will make the structure very complicated.
[0009] 1. Metal alloys and plastics have poor affinity, and natural conditions cannot form a reliable combination

Method used

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  • Ceramic composite middle frame of mobile terminal and preparation method thereof
  • Ceramic composite middle frame of mobile terminal and preparation method thereof
  • Ceramic composite middle frame of mobile terminal and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] An embodiment of the ceramic composite middle frame of the mobile terminal according to the present invention, the cross-sectional schematic diagram of the ceramic composite middle frame of the mobile terminal described in this embodiment is as follows figure 1 As shown, the local schematic diagram is shown in figure 2 Shown:

[0053] Including ceramic frame 1, metal middle plate 2, ceramic frame 1 and metal middle plate 2 are connected by plastic framework 3, metal middle plate 2 and ceramic frame 1 are provided with overlapping structures, and both sides of plastic framework 3 are provided with occlusal structures The occlusal structure on one side of the plastic frame 3 is connected to the lap structure of the ceramic frame 1, and the occlusal structure on the other side of the plastic frame 3 is connected to the lap structure of the metal middle plate 2. The specific connection forms include but are not limited to image 3 As shown in : the overlapping structure i...

Embodiment 2

[0063] An embodiment of the ceramic composite middle frame of the mobile terminal according to the present invention, the structure and size of the ceramic frame, the plastic skeleton, and the metal middle plate of the mobile terminal ceramic composite middle frame described in this embodiment are the same as those in Embodiment 1, and the different The ceramic composite middle frame in this embodiment is partially metallized and provided with metal contacts 6. The method for preparing the ceramic composite middle frame of a mobile terminal in this embodiment includes the following steps:

[0064] (1) Roughly process the ceramic shell and complete the standard processing of in-mold injection molding;

[0065] (2) Carrying out surface activation treatment to the ceramic housing obtained in step (1);

[0066] (3) The ceramic shell is subjected to structural processing of local metallized structural holes and wire grooves;

[0067] (4) Embedding partial metal contacts into the c...

Embodiment 3

[0073] In this example, the effects of the dimensions of the ceramic outer frame, the plastic skeleton, and the metal middle plate on the strength of the ceramic composite middle frame of the mobile terminal described in the present invention are studied. The structure and size are all within the scope of the present invention. The control group 1 is a conventional stainless steel aluminum alloy composite frame, and the control group 2 is a conventional aluminum alloy plastic partition frame. Specifically, each of the experimental groups 1-8 and the control group 1-2 The size setting and strength results are shown in Table 1 and Table 2:

[0074] Table 1

[0075]

[0076] Table 2

[0077]

[0078] It can be seen from Table 2 that the ceramic composite middle frame has good practical application performance.

[0079] In addition, the appearance of the ceramic composite middle frame in the present invention was compared with the stainless steel middle frame and aluminum ...

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Abstract

The invention discloses a ceramic composite middle frame of a mobile terminal. The frame comprises a ceramic frame and a metal middle plate. The ceramic frame and the metal middle plate are connectedthrough a plastic framework. The metal middle plate and the ceramic frame are provided with lap joint structures. Meshing structures are arranged on the two sides of the plastic framework. A meshing structure on one side of the plastic framework is connected with the lap joint structure of the ceramic frame, and a meshing structure on the other side of the plastic framework is connected with the lap joint structure of the metal middle plate. The ceramic composite middle frame is formed by carrying out in-mold injection molding on a ceramic frame and a metal middle plate. The appearance surfaceof the middle frame has the texture that the ceramic is mild like jade and hard and wear-resistant. Local metallization can be achieved in the ceramic frame according to the antenna design requirement, natural design and layout are facilitated, and the overall middle frame is excellent in texture and effect. Meanwhile, the invention further discloses a preparation method of the ceramic compositemiddle frame for the mobile terminal.

Description

technical field [0001] The invention relates to a middle frame of a mobile terminal and an electronic product, in particular to a ceramic composite middle frame structure of a mobile terminal and an electronic product, and a local antenna can be used on the ceramic frame. Background technique [0002] The development of electronic products such as mobile terminals, smart watches, and smart appliances is becoming more and more mature, and has become an indispensable item in people's life and work. At present, the middle frames of mainstream mobile phones are mostly made of aluminum alloy, and high-end flagship models are mostly made of stainless steel. In order to realize the transmission of data signals in the metal middle frame, engineers use in-mold injection molding to make an antenna partition area on the metal middle frame; however, 5G communication uses millimeter waves for high-frequency transmission, and the signal shielding of the mobile phone case is reduced. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04M1/02C04B41/00
CPCC04B41/00H04M1/026H04M1/0283
Inventor 邱基华郑镇宏陈烁烁童文欣
Owner CHAOZHOU THREE CIRCLE GRP
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