No. 02 is still a straight plate sample, but a stamped aluminum alloy brushed metal frame is embedded around the front LCD screen, extending from the earpiece to the top of the buttons, the shiny metallic luster increases the texture of the mobile phone, and the plastic shell baked by silver gray spray paint does have a bit of luxury.

Du Shumin explained to everyone: "Our designers originally wanted to cover the silicone buttons together, but they gave up after the trial processing. Because there are too many metal punches to lead to a very low stamping yield, to improve the yield of the aluminum plate to choose a much thicker aluminum plate, will lead to the key sagging, there is also an occasional metal cutting hand feeling when using, so that each hole has to be polished, obviously does not meet the design requirements, the cost is also very high, and it is impossible to ensure the assembly fit of the large-area aluminum plate and the plastic panel, and when the front panel is removed, once the force is too large, it will lead to metal deformation.

We have also considered giving up one-time molding and using stamping and then punching separately, but it is difficult to ensure the processing accuracy, the cost is also very high, the assembly fit is still difficult to guarantee, and the problem of disassembly and deformation still exists.

So, I had to insert it above the button. ”

Hu Yiting sighed: "Take your time, precision machining capabilities can not be improved overnight, Europe, the United States and Japan can make their electrical shells so meticulous, and they have also accumulated decades of manufacturing experience." In this regard, we must be ashamed and courageous, and keep catching up. ”

Du Shumin: "Mr. Hu is right, in addition, our domestic metal finishing machine tool manufacturing level is indeed very average, if you want to make the shell look good, a lot of manufacturing equipment has to be imported." ”

Hu Yiting: "Step by step, didn't we Chinese fail to design high-end chips before? Chinese machine tool manufacturers are also trying to catch up." Of course, we can't wait for them, and we can't be reluctant to spend money where we should purchase imported equipment. ”

Lin Yun: "Mr. Hu is right, at present we can only rely on imported high-end equipment to make up for our shortcomings in finishing manufacturing, this year Cologne, Germany to hold the global industrial equipment exhibition, I see the information sent by the State Science and Technology Commission, there will be a lot of first-class manufacturing and processing equipment exhibition and sales every year, the president's office has also decided to organize people to participate in the conference every year. In short, we move forward step by step and will definitely achieve our goal. ”

Hu Yiting nodded approvingly at Lin Yun, and picked up the No. 3 sample, which was a straight board again.

Du Shumin hurriedly explained: "No. 3 is a deformation of the No. 2 design, we changed the shape of the metal frame, slightly increased the coverage area, and made two metal sideburns on both sides, extending to the two buttons of number 1 and number 3. The background color of the plastic shell has also been changed to black, the silver aluminum alloy brushed panel is intertwined with the black engineering plastic, and the LED light source of the keyboard substrate light guide film has changed from green to white, this LED particle is still a product of Panasonic, which was newly launched by them in November last year, the white light looks very bright, although it is not as soft as the green one, but the increase in light intensity will give people visual stimulation. ”

Hu Yiting nodded, looked at Zhu Jun, Zhu Jun said: "I think this design is still very good-looking, after the keyboard backlight is changed to white, there is a cool feeling, don't people like to use this word now?" ”

Hu Yiting also laughed: "Yes, I also think it's good." ”

After speaking, Hu Yiting picked up the No. 4 machine, this looks very similar to the No. 3 machine, but the key part is covered by a high-brightness aluminum alloy polished plate, it adopts a slide design, press and hold this aluminum alloy plate with your finger and slide it down, you can expose the keyboard area.

Du Shumin continued to explain to everyone, this time she was obviously excited: "Because the clamshell design has been patented by Motorola, and the Motorola 8900 model was launched in 95, we can't use the downward flap design at present.

However, thanks to Mr. Hu for giving us creative inspiration, reminding us that we can use a slide-type design, which can also play a role in protecting the buttons, so that when the mobile phone is placed in the pocket, it will not touch the button by mistake, and it can play the same effect as the clamshell machine. And when the slide is closed, the entire front panel is integrated into one piece, forming a protruding elliptical parabola. From an industrial design point of view, it is very aesthetically pleasing.

The metal inlay on the upper part of the panel is made of the same material as the slide cover, which is made of high-polished aluminum alloy, so that we can achieve the visual effect of complete metallization of the front panel with the help of the slide cover, and flexibly avoid the problem of complex processing and veneer of large-area metal panels. Here, I would like to thank Mr. Hu again, you are really worthy of our source of inspiration, the god of wisdom! At present, we have registered a patent for the design of the slide, and are still researching the new slide structure, and we will strive to separate the LCD screen and the keyboard as soon as possible. ”

Hu Yiting knew that the world's first slider mobile phone was the SL1088 launched by Siemens in 99, and Chongguang Company took the slide design of the mobile phone as its own in advance through a clever and simple transformation this time. Now that Chongguang has become the grandfather of the slide, of course, the next step is to make a big fuss about this design, no matter how weird and ugly some people think the slide is, the child is always his own pro.

Gong Linsheng, supply chain director of Chongguang Group, asked: "I heard that the metal shell will interfere with the signal, but I don't know if it's true?

Hu Yiting smiled slightly when he heard this, and Du Shumin immediately replied: "Well, that's the case, metal does have the effect of electrostatic shielding, but our signal antenna is at the upper end of the mobile phone, in this part, we have minimized the use of metal, leaving a 19 mm uncovered space in the upper part, and we do not use metal at all on the back of the mobile phone, and the part of the metal used on the front also deliberately leaves an insulated wire to ensure that no metal loop will be formed." There is a premise for electrostatic shielding, that is, there must be a closed loop. ”

Speaking of this, Du Shumin laughed: "Director Gong, don't worry, each of these six prototypes, we have carefully tested each of them, our mobile phone business is not dry, and it is impossible to take problematic products and pit ourselves." At present, the signal attenuation caused by the metal part is within acceptable limits. ”

Gong Linsheng said with a smile: "I just suddenly thought of this question, and I asked casually, and I never doubted your technical level." ”

Hu Yiting nodded: "Director Gong asked a very good question, if you have any questions, just take them out and ask."

I have repeatedly said before that there should be no cognitive blind spots within the company, and everyone should live to learn and not live with problems.

Especially for those of us who are at the top of the hierarchy, we have to quickly understand if we have problems, and we must help each other. There is a specialization in the art industry, there is a sequence of hearing the Tao, it is normal to not understand, and it is troublesome if you don't know how to pretend to understand.

I think Director Gong asked this question very well, among these people sitting here, we can think of electrostatic shielding when we see the metal shell, I don't think there are many of them. ”

Zhu Jun also smiled and nodded: " That's true, when Xiao Du told me to inlay metal patches on the panel of the mobile phone, I didn't think to ask her about electrostatic shielding, after more than a week, one day I had dinner at home at night, looking at my soup basin with a circle of metal edging suddenly broke out in a cold sweat, so I quickly called her, as a result, Xiao Du has already considered this problem, and has come up with a solution, hehehe, for our professional communication people, this problem is not big, it is not small, as long as it is found in advance, it can be completely solved with our heavy light technical ability。 ”