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mobile terminal

A technology of mobile terminals and grounding terminals, which is applied in the field of mobile terminals using two-layer PCB boards. It can solve the problems of high cost of 4-layer PCB boards, insufficient cost advantages, and restrictions on the research and development of mobile terminals such as mobile phones, so as to extend research and development and reduce costs. Effect

Active Publication Date: 2015-08-26
HUAQIN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the cost of 4-layer PCB boards is still relatively high, and the cost advantage is still not prominent enough, which greatly restricts the further development of mobile terminals such as mobile phones

Method used

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Examples

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no. 1 example

[0025] The mobile terminal of this embodiment includes a PCB board, wherein as image 3 As shown, the PCB board of this embodiment is composed of a wiring laminate 101 and a wiring laminate 102, wherein the wiring laminate 101 and the wiring laminate 102 in this embodiment are insulated from each other, so that the wiring layer Interference such as collusion will not occur between the traces on the board 101 and the traces on the trace laminate 102 .

[0026] In addition, an insulating layer can be further filled between the wiring laminate 101 and the wiring laminate 102, so that while the wiring laminate 101 and the wiring laminate 102 are insulated from each other, further The electromagnetic interference between the wiring laminate 101 and the wiring laminate 102 is greatly reduced.

[0027] Among them such as figure 1 As shown, the wiring layer 101 of the PCB in this embodiment has a display area 1011 corresponding to the display screen of the mobile phone and a keyboar...

no. 2 example

[0037] Such as Figure 5 As shown, the difference between the mobile terminal of this embodiment and the mobile terminal of the first embodiment is:

[0038] In this embodiment, the radio frequency chip 4 , the Bluetooth chip 7 and the FM chip 8 are covered by a shielding case 131 , and the memory 5 and the baseband chip 6 are covered by another shielding case 132 . The shielding case 131 and the shielding case 132 shield the chip from being interfered by external electromagnetic signals.

[0039] Moreover, both sides of the wiring 14 in this embodiment are provided with grounding wires (not shown in the figure), wherein the grounding wire is kept parallel to the wiring 14, and the grounding wire is also maintained with the wiring 14 A certain distance, such as 20 μm, and the distance can be changed according to design requirements. The ground wire can effectively prevent the wire signal in the wiring 14 from interfering with external electromagnetic signals and crosstalk to...

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Abstract

The invention discloses a mobile terminal which comprises a printed circuit board (PCB), wherein the PCB comprises a first routing laminate and a second routing laminate; both the first routing laminate and the second routing laminate are used for mounting a plurality of electronic elements and routes of the electronic elements. In the mobile phone, by two layers of PCBs, the cost is reduced greatly, so the development of the mobile phone is extended; furthermore, the interference of external electromagnetic waves on the electronic elements is reduced in a shielding shade; moreover, the routes of the electronic elements are isolated and encircled by ground wires, so that the crosstalk of signals among the routes is reduced.

Description

technical field [0001] The invention relates to a mobile terminal, in particular to a mobile terminal using a two-layer PCB board. Background technique [0002] With the rapid development of the communication industry, the competition in the mobile terminal market is becoming more and more fierce. The price of mobile terminals, especially the price of mobile phones, has become an important aspect of the competition of mobile terminal products. Therefore, in the research and development process of mobile phones, the requirements for cost control are becoming more and more intense. [0003] But even a low-end mobile phone has many functions that can be realized. In addition to calling and instant messaging, functions such as FM (frequency modulation), camera, Bluetooth and external speaker are also indispensable. However, in order to ensure the realization of these functions , the current research and development of mobile terminals almost uniformly use PCB boards (printed ci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04M1/02H05K1/00
Inventor 徐敏燕李君赵冀杨
Owner HUAQIN TECH CO LTD