"Boss, I'm not sure how many people are needed for this. Just to design and develop various motors for machine tools, at least five people from the power industry and 3 to 4 junior and intermediate students from the mechanical industry are needed.

In addition, in terms of junior high school students, we need at least a hundred junior high school students in the early stage, as well as some junior high school students in the mechanical industry. After all, the electric power industry and the mechanical industry are inseparable.

After the design is completed in the future, whether it is the electric power industry or the mechanical industry, at least hundreds of top students will be needed. Of course, boss, if you want to design more advanced motors, or cross-generational motors and other things in the electric field,

For example, batteries, etc., then more academic masters are needed." Zhao Feng answered Zhang Yi's words.

"Okay, then I will appoint you as the director of the Motor R&D Department of our Qicaishi Group, and you will go to the factory to select a workshop yourself as a temporary laboratory for your Motor R&D Department. After the experimental building is completed, you can go to

We will move together with other laboratories into the experimental building."

When Zhang Yi said this, he thought for a moment and said. "Wait a minute, I will give you some according to your request, elementary and intermediate students, but I hope you can design and manufacture them before April next year.

Develop the motors and servo motors required for composite high-performance machine tools. I wonder if you can complete it?"

"No problem, boss. I guarantee that we can design and manufacture all the motors needed for machine tools before April next year. After all, your country's foundation is not weak in this regard. In fact, what is lacking is only the various parts in the motors."

At the same time, many motor patents have been applied for by foreign manufacturers, which has led to the reason why many manufacturers in your country are restricted by others in this regard.

Since I came to this universe, up until now, I have learned a lot about your universe's motor and power theory. I even disassembled many motors in the factory to study them.

Then combined with my original theoretical knowledge of the universe, my technical level has been greatly improved.

And during this time, I also designed a high-power micro DC high-speed motor.

However, due to the limitations of materials in your universe, especially bearing materials, generally speaking, the speed of your motors was relatively slow, only a few thousand revolutions per minute. Even a few motors with tens of thousands of revolutions were already at their limit.

If the speed is too high, the first thing that can't bear it is the bearing. Even high-speed miniature bearings can only turn tens of thousands of times per minute.

But our colorful stone is different. Because our colorful stone bearings are very good, even ordinary-sized bearings can easily withstand speeds of tens of thousands of revolutions. If we use the bearing steel made of our colorful stone to make miniature bearings

If so, then it can easily reach hundreds of thousands of revolutions per minute.

So in the past few months, in addition to maintaining the power safety in the factory, I also designed an ultra-high-speed micro motor. The micro motor I designed has a theoretical maximum speed of 12 to 24 volts.

Reaching 500,000 rpm, but considering materials and other issues, in actual application, it can still easily reach about 400,000 rpm." After finishing speaking, Zhao Feng looked at Zhang Yi expectantly.

"What! You have designed a miniature ultra-high-speed motor, and it can theoretically reach 500,000 rpm. I don't know how powerful this motor is, how long its life is, and how big it is." Zhang

After Yi heard this, he immediately asked.

It's no wonder that Zhang Yi is anxious. After all, the uses of micro-high-speed motors in modern society are very extensive.

Micro motors generally refer to motors with a diameter less than 160 mm, or a rated power less than 750 watts, or with special performance and special purposes.

Its application fields are very wide, such as food machinery, textile machinery, medical equipment, smart doors and windows, monitor pan/tilts, household appliances, heating and cooling air conditioning fan motors, etc.

Of course, like other mechanical equipment, there are many categories of micro motors, but they can be roughly divided into DC motors, AC motors, automatic angle motors, progressive motors, rotary transformer motors, shaft angle encoders, and AC-DC motors.

, tachogenerator, induction synchronous motor, linear motor, voltage motor, motor unit, and other special motors in 13 categories.

"Boss, this micro motor I developed is a brushless DC micro motor with a permanent magnet structure. The diameter of the motor is 10-30 mm. The maximum rotation speed of 30 mm can theoretically reach 500,000 per minute, and the theoretical maximum power can reach 3,000 watts.

, the life of the micro motor is also very long. Theoretically, the trouble-free operation time is at least 100,000 hours. This is just a theory. In the actual application process, it cannot be determined.

After all, it has only been less than two months since I designed and manufactured this motor, and he has no way of testing the mechanical life of the motor.

However, Boss's micro motor also has a very big flaw, that is, its volume can only be within 10 to 30 mm. If the volume exceeds 30 mm, then even the bearings we make can withstand such a rotational speed, but

Other materials on the motor cannot withstand the centrifugal force generated by such a high speed.

Due to its high speed and strong centrifugal force, this motor has very high material requirements. Therefore, the cost of manufacturing this motor is also relatively high. The material cost required to manufacture each motor is more than 20,000 yuan.

, and this is just the cost of materials.

In addition, this motor has very high production process requirements. The total cost of producing such a micro motor is at least 35,000 yuan." After listening to the translation, Zhao Feng thought for a while before answering seriously.

Zhang Yi certainly knows about permanent magnet micro brushless DC motors. After all, when he was working in Hangzhou, the industry he was engaged in at that time was the electric vehicle repair industry, and most of the motors used in electric vehicles were permanent magnet DC motors.

Brushless motor.

At the same time, we also understand the working principle of this kind of motor. A permanent magnet brushless DC motor is a DC motor that uses magnets to create a magnetic field. Compared with other DC motors, this kind of motor has small size, high efficiency and simple structure.

It has the advantages of using less copper and is the most important type of low-power DC motor.

Most permanent magnet brushless DC motors, like electric vehicle motors, have relatively slow speeds, but the permanent magnet DC motor developed by Zhao Feng has such a fast speed, which has overturned Zhang Yi's understanding of permanent magnets.

Understanding of brushless DC motors.

However, Zhang Yi was relieved when he thought about the manufacturing price of this motor. It is obvious that Zhao Feng must have added a lot of rare earths in the process of developing this motor. Otherwise, the manufacturing price of this motor must not be so high.
Chapter completed!