Chapter 188 A bold plan, Nanshan Electric wants to overtake in a corner

Author: Rabbit who loves drinking black tea

Chapter 188 A bold plan, Nanshan Electric wants to overtake in a corner

A motor is essentially an electromagnetic device that uses the law of electromagnetic induction to convert or transmit electrical energy.

The power tools you see every day, including drilling, polishing, polishing, grooving, cutting, reaming and other tools, all require the use of motors.

Various home appliances, washing machines, electric fans, refrigerators, air conditioners, tape recorders, video recorders, DVD players, vacuum cleaners, cameras, hair dryers, electric shavers, etc. also need to use motors.

It can be said that although people don’t pay much attention to motors, they exist all the time in their lives.

Of course, motors are used in such a wide range of applications, it is impossible for Nanshan to deal with all types of motors right away.

That is simply unrealistic and unnecessary.

As the initial focus, we must first develop the motors used on the robot, and at the same time, develop the ones used on the machine tools.

Of course, the generators and starters used in cars are already being developed and will definitely continue to be developed.

As for other products, they will be developed slowly in the future.

If the stall is too big and too scattered, problems may arise.

"Mr. Cao, would it be too radical to directly use flat wires for the winding of this motor?"

"This requires very high production equipment for copper wires, as well as high quality requirements for copper wires. If you are not careful, a large number of scraps will appear."

Although Pan Jinxing is not a professional in motor research, as a machine tool expert, he naturally has research on motors.

During this period, Cao Yang spent all day in the laboratory, and naturally he spent most of his time researching with him.

"Although the production of flat wires is a bit more difficult, the advantages are too obvious."

"Under the same power, because the flat wire takes up less space, the outer diameter and volume of the motor can be reduced, resulting in a smaller flat wire motor, less material, and lower cost."

"Under the same volume, because the flat wire takes up less space, more wires can be filled in the slot while the entire space of the motor remains unchanged. That is, the slot fullness rate of the motor will increase, and the power density of the motor will also increase. Generally

The slot full rate of round wire motors is about 40%, while you can achieve 60% slot full rate of flat wire motors.”

"Compared with round wire motors, flat wire motors can have a relatively smaller notch size, which can effectively reduce cogging torque, thereby reducing motor noise."

"Compared to round wire motors, flat wire motors have better armature stiffness."

"The internal gaps in the flat wire motor windings are small, and the contact area between the wires and between the windings and the core slots is larger, so the heat dissipation and thermal conductivity are better, the temperature rise is lower, and the overall performance of the motor is better."

"For round wire motors, due to process problems, the ends are generally left slightly longer to prevent damage to the copper wire during the process, while for flat wire motors, because the wires are hard wires, the ends can be left shorter to save money.

Copper materials, reduce costs and improve efficiency.”

Cao Yang knew very well that most of the motors used in electric vehicles in later generations were flat wires.

This is the way forward.

Since Nanshan wants to develop motors, it must develop in the right direction.

By planning ahead now, a bunch of patents will be able to keep out many competitors.

As a result, Nanshan's motors have become the leader in the industry.

As for the difficulties we are encountering now, they can definitely be solved.

Even if the defective rate is higher, it is still acceptable.

"Mr. Cao, what you said is correct."

"But with flat wires, series design is difficult. For example, when the core and the number of slots are the same, but the length and number of coil turns are different, a series of motors can be easily designed for round wire motors, while for flat wire motors because

The number of turns itself is small, and reducing or adding a few will have a relatively large impact on the performance of the motor, so it is difficult to design a series."

Pan Jinxing obviously still felt that Cao Yang's steps were too big.

Flat line.

Which manufacturer's mass-produced motors use windings like this?

If Nanshan has to be innovative, is it really useful?

“Design is hard to come back from, but it’s not impossible.”

"Look at the current plans, they all use flat wires. I have already designed the preliminary plans with several technicians."

“The next step is to consider introducing a batch of flat wire trial production lines yourself.”

"In the future, when the technology matures, special factories will be built for production."

Cao Yang pointed to the drawings on his computer and motioned to Pan Jinxing to take a look.

At first, Pan Jinxing just glanced at it casually.

But soon, his eyes stopped moving.

It has only been less than half a month, and the design of the motor has been completed?

It looks decent, with no obvious problems.

this……

How can this be?

"Mr. Cao, the structure of this motor seems to be completely different from the disassembled Fanuc motor."

"But there doesn't seem to be any problem. The structure is more compact and the weight is lighter."

Although Pan Jinxing is not a professional motor designer, he can still see the situation of the drawings in front of him at a glance.

"Why should it be the same as Fanuc's?"

"The motor on this FANUC robot was produced at least five years ago, and it was not the most advanced product at the time."

"If we design the structure the same as the other party, let's not talk about whether there is a problem with the patent."

"Only in terms of technology, we will fall far behind. This is definitely not what we want to see."

"From a circular line to a flat line, to a certain extent, we are overtaking on a curve."

"Although some manufacturers in the industry are doing research in this area, overall the progress is not particularly great."

"As long as we do it well, it can be used on many motor products in the future."

"Even with the increase in output, the problems in the flat wire processing process can be gradually solved, leaving only the advantages of flat wire."

When Cao Yang said this, Pan Jinxing naturally had no way to refute.

"Then I will arrange for people to build a trial production line as soon as possible. There is no manufacturer that can produce flat lines, so we can only do it ourselves."

"A motor is nothing more than a stator, a rotor and a few key parts."

“Among them, flat wires account for a relatively high cost because they are made of copper.”

"Even if we don't engage in in-house production now, we will have to do it sooner or later, otherwise the key points of cost will be in the hands of others."

"Anyway, we are just setting up a trial production line now. The output will be lower and the degree of automation will be lower. It doesn't matter."

"The key is to compress the time as much as possible. We can't keep Huaqiang Factory waiting for us."

"We can't let FANUC and the other robot manufacturers just sit there and make money."

In 2002, a welding robot easily cost 500,000 to 600,000 yuan, or even millions.

But by 2023, the price will directly become hundreds of thousands, or even less than 100,000.

On the contrary, the performance of the product has been improved.

It is conceivable that today's welding robots, even if they cannot be said to be huge profits, are definitely high-profit products.

Various manufacturers have also maintained a certain degree of tacit understanding and will not easily engage in price wars.

Of course, once Chinese manufacturers enter this field, prices will start to drop.

Sometimes, Cao Yang didn't know how to evaluate this matter.

Chinese manufacturers have entered the market and prices have dropped, which is a good thing for users.

But if prices are reduced to a certain extent and disorderly competition occurs, it will actually do great harm to the industry.

Just like how motorcycles have been exported to Southeast Asia in recent years.

At the beginning, China's low-priced motorcycles were exported to Southeast Asia. In just a few years, their market share increased rapidly, knocking Japanese car companies out of business.

But soon, a bunch of motorcycle manufacturers in China were swarming in exporting motorcycles to Southeast Asia.

In a few years, motorcycles will become cheap.

In order to compete on price, the quality became worse and worse, and the reputation gradually disappeared.

So by 2023, the motorcycle market in Southeast Asia will almost completely return to the hands of Japanese car companies.

Those domestic manufacturers were as crazy as they were back then, but they were disappointed later on.

But when you first start, you have to compete with international giants for the market, and it won't work if you don't compete on price.

You said that you have great skills, so you have to sell it at the same price as others, so that someone is willing to buy it.
To be continued...