I saw a sketch with full lines gradually taking shape on the whiteboard, and Zhao Ping'an was quite confident in hand-drawing.

This may be the most effective thing in his four-year college career, because he has been thinking about painting a picture of the goddess who has been secretly thinking about four years and one day, but unfortunately he has always felt that he has never dared to really put pen to paper if he doesn't get home, and when he feels that the heat is about the same, the school is already on vacation.

This is a cylindrical object, the length is marked as 50cm, the upper and lower sections are divided into two sections, the diameter of the thicker lower section is marked as 6.5cm, and the upper section is 4.5cm, like two sleeves, and the top of the upper sleeve has a height of 2cm, a diameter of 10cm sheet cylindrical body, a closed top cover, the bottom surface is connected with the sleeve, and there are dense oval holes around it evenly distributed, there is a sense of sight of an alternative shower head.

There were also some arrows marked by the trajectory lines next to the object, and then when the three interviewers saw the same, Zhao Ping'an sketched a transparent umbrella-shaped light mask with flowing strokes on the top of this unknown object that was shaped like a pharaoh's scepter.

"What is this?"

The three interviewers are not mediocre people, and they were instantly attracted by this idea full of fantasy, but this hand-drawn picture with good skills alone is not enough for Ye Zhiqiu, this is not a complete design drawing after all, and they all looked at Zhao Ping'an with a puzzled face at this time.

"Ladies and gentlemen, this is my idea, the design given according to the client's requirements - air umbrella!"

"What's that? Air...... Umbrella? Zhang Weiming frowned and said, "It's a little whimsical, right?" ”

In his opinion, this is not design at all, but more like a fantasy, after all, product design should follow the premise that the product can be manufactured, and the air is the umbrella? It's unheard of!

Zhou Xinghua, who was on the side, touched his forehead and put on a thoughtful look.

And Jiang Yaqi, who was outspoken, urged repeatedly: "Go on, you continue." ”

Zhao Ping'an was very satisfied with her impatience, and his disgust with her was reduced a lot, and he said slowly: "The air umbrella, as the name suggests, is to omit the umbrella cloth on the traditional umbrella and replace it with air. ”

“How？ How do I replace it? ”

In fact, it is not difficult to see from Jiang Yaqi's expression at the moment that she is not a person with complex thoughts, but more just paranoid, not right about things, perhaps it is precisely because of this simple mind that she can become one of the five design directors of Yunchuang, a well-known domestic design company, at the age of 26.

"The principle is simple."

Zhao Ping'an smiled at her and said: "The flowing air can change the trajectory of the object, the faster the air moves, the stronger its energy is, and the jet of air can also isolate some objects." ”

"You mean...... Jiang Yaqi's breathing became a little rapid, "using the air flow generated by the air flow to form an invisible transparent umbrella, so as to isolate the rain and keep people from getting wet?" ”

“Bingo！ Answer correctly. ”

Jiang Yaqi looked at Zhao Ping'an with a confident smile on her face in a daze, and the whole person was stunned for a while, isn't this just a whimsical idea? It's a genius idea!

Why didn't she think of it? Until this time, she no longer dared to underestimate this third-rate university graduate, you must know that the inventor Edison didn't even finish elementary school, and the smooth sailing of these years finally made her a little impetuous, forgetting the simple truth of not judging heroes by their origins.

And Zhou Xinghua, who was sitting next to her, was even more bright-eyed, staring at the hand-drawn drawing on the mobile whiteboard without blinking, and said with a serious expression: "Xiao Zhang, explain your idea in detail." ”

As the most senior design director of Yunchuang, Zhou Xinghua's vision can be described as extremely ruthless, unlike Zhang Weiming, in his understanding, this idea will be ninety percent sure that it will be designed into a product.

He was just a little puzzled, is this really an idea that can be formed in 10 minutes? You must know that the top students of those first-class universities in the past basically started from the appearance, and few people dared to challenge the functional design in such a short time, let alone such a creative idea!

Even he himself, having been learning about this commission for a week, has not had any good ideas.

For Zhou Xinghua, Zhao Ping'an can't say that he hates it, but he can't say that he likes it, because his not rich life experience tells him that the more people who always have a smile on their faces and look harmless to humans and animals, the more scheming they tend to be.

"Look, everybody." Zhao Ping'an stretched out his hand and pointed to the two cylindrical cylinder sleeves, "This is the umbrella handle, I have made a segmented design here, so that it can be shrinked, and it is more convenient to carry, especially for women, the expected length of the umbrella handle after shrinkage is 27cm, and there is no problem at all in the bag." ”

"And here." Zhao Ping'an pointed his finger at the bottom of the sleeve, where a slightly expanded flare shape was formed.

He continued: "This is the air inlet, the air enters first, and then several micro centrifugal fans need to be assembled inside the barrel sleeve, we can learn from the design principle of the multi-slice deep well pump, the number of fans depends on the specific needs and the available space, so that the air through the fan layer by layer, the flow rate will be faster and faster, when it reaches the top of the thin sheet top cover, it will reach a peak, and then spray out of the diversion hole in the outer ring of the top cover, so as to achieve the purpose of isolating rainwater." ”

"Not bad!" Jiang Yaqi said with an excited expression: "This is definitely an imaginative design, maybe it can be shortlisted for the CF Design Award." ”

"A question." Zhou Xinghua frowned and asked, "Where does the driving force come from?" Is it electricity? There is still a narrow design space for such a high-power driving mode, what kind of battery should be equipped to drive smoothly, and it is also necessary to ensure the utilization rate of a certain timeliness? Have you considered these? NiMH or lithium-ion batteries? ”

Even Zhao Ping'an has to admit that Jiang is still old and spicy, and the eldest Zhou Xinghua does look at the problem more comprehensively, and the driving force is the most difficult part of his overall concept.

"The aggregate lithium-ion battery is undoubtedly a good choice, with superior cycle performance, high charging efficiency and high output power, considering the design space of the air umbrella, it can be equipped with a 7.4V, 4000mAh or 12V, 5000mAh aggregate lithium-ion battery, and then depending on the final energy consumption, the predicted use time is 15-30 minutes."

"Uh, that's right." Speaking of this, Zhao Ping'an seemed to suddenly think of something, and added: "The umbrella handle will also be equipped with an energy adjustment button, which is realized by a coupling switch linked to the centrifugal fan, so that the size of the air hood can be controlled, which is an optimization scheme that is convenient for multiple people to use, and it is also a variable in the working time of the air umbrella, which needs to be taken into account when designing." ”

"It's only been 15-30 minutes?"

Zhang Weiming's expression was obviously a little disdainful, if there is only such a short working time, then this air umbrella is completely chicken ribs, and with the size of the air cover becoming larger, the working time is estimated to be shorter, maybe only a few minutes, doesn't that mean that the user may be drenched in soup at any time?

Alas...... After all, it's a kid who has just come out of school, and his ideas are too pompous.