Recently, on Weibo Nubia Z5 The focus of the discussion is that there is no shield on the circuit board after opening the back cover, and obvious flying wires and flat wires can be seen. To be fair, from the Nubia Z5 disassembly It can be seen from the article that the rear cover of the Z5 is an integrated design with non replaceable batteries and requires tools to open. As for the so-called flying line and cable arrangement problem, let's check the internal conditions of other flagship aircraft together with the small aircraft.
Galaxy S III
Galaxy SIII was the world sales champion of Q3 in 2012, with sales exceeding 30 million units by the end of 2012. The machine is designed with replaceable batteries. The situation after opening the back cover is shown in the figure below:
After opening the back cover, you can see a layer of protective cover. Under the protective cover, you can see a wire next to the battery compartment. Some netizens pointed out that this wire is actually a Wifi antenna.
The yellow ribbon cable can also be seen on the left and above, but the Galaxy SIII ribbon cable runs through the lower part of the circuit board, and the routing is relatively secret.
HTC One X
HTC One X is HTC's first quad core mobile phone, Love to play computer games The upgraded version of One X+has been evaluated (see《 1.7 GHz Quad Core Roaring HTC One X+Evaluation 》）。 This machine is relatively difficult to disassemble, so it needs to be carefully pried off with a crowbar along the front panel.
It can be seen that there is a layer of thermal conductive copper foil inside.
After uncovering the copper foil, a black wire was found, and the vibration motor at the lower left was also connected with the wire.
Nexus 4
The Nexus 4 is the fourth generation Nexus mobile phone jointly launched by Google and LG, which has been crowned as the "king of cost performance" by many netizens. The machine also adopts integrated design.
To disassemble the machine, unscrew the two screws at the bottom, and then slowly pry off the back cover with a suitable tool.
The components are densely hidden, but a white wire can also be seen.
Lumia 920
Lumia 920 is the first WP 8 flagship mobile phone launched by Nokia, shouldering the heavy responsibility of Nokia's rejuvenation. After its release, the foreign website WindowsPhoneMania.pl took the lead in dismantling it.
After being removed, a yellow ribbon cable is particularly eye-catching. Also, in the whole disassembly diagram, we can see that a wire is connected to the antenna:
Summary:
From the above selected mobile phones, Wire connection is a very common design element in mobile phone design. However, it should be pointed out that this kind of wire is not the same as the flying wire. The so-called flying wire refers to the method of connecting two nodes on the circuit board with wires due to design defects or for testing purposes (Via Wikipedia). It is often a compromise measure to weld the wire between the two points to be connected. But now many mobile phone designs have wires Since the motherboard cannot be integrated, the two PCBs are bound to be connected by wires, which is totally different from the so-called "flying wire". （ to update: Netizens pointed out that these connecting lines are basically shielded RF lines, which is necessary. It is not reliable to go along the circuit board. For reasonable antenna positioning, it is beneficial to connect through the shortest RF cable. ）
As for the problem of "exposed circuit board", the minicomputer also said two words by the way: Is it necessary to add a protective cover after the integrated rear cover is opened? When chatting with Meizu staff, Xiaoji also learned that there was no problem that Meizu MX2 was not equipped with a shield, which was the manufacturer's choice. Xiaoji believes that Z5 may have chosen not to add a shield from the perspective of ultra-thin design and signal, which is not a problem in design. However, from the perspective of user experience, perhaps what the Z5 should do is to make the USB socket easier to insert (the Z5 obtained from the small computer is also difficult to insert), so that the user should not find a way to remove the back cover after having nothing to do, thus giving the user the wrong impression of "poor protection of the circuit board".
(Note: some pictures in this article are from the network)
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