In the factory of Pengpai Motor.

Wen Weiping, president of Pengpai Motor Company, was accompanying Huang Haojie to watch the motor being trial-produced on the production line of Pengpai Model 1 Motor.

The Pengpai 1 motor that is being produced is actually not a rare earth permanent magnet synchronous motor, but a permanent magnet synchronous motor.

After all, the price of rare earths is too high, and it is also a strategic material. If you use rare earth permanent magnet synchronous motors, the cost is estimated to be 20,000 yuan per unit. Obviously, this price will reduce the competitiveness of Pengpai Motors.

Moreover, the power of permanent magnet synchronous motors used in electric vehicles is about 80.

Huang Haojie felt that there was no need to push out a rare earth permanent magnet synchronous motor with a power of up to 123 at once.

Ordinary permanent magnet synchronous motors with self-generating coating can increase the power to around 103, killing all motors in an instant. The more amazing rare earth permanent magnet synchronous motors are just technical reserves.

The Pengpai Type 1 motor consists of a permanent magnet rotor multi-pole winding stator position sensor, etc.

It is a brushless DC motor that uses semiconductor Hall switching elements to realize electronic commutation, that is, electronic switching devices are used instead of traditional contact commutator and brush.

It has the advantages of high reliability, low commutation spark machinery, and other high noise.

The position sensor converts the current of the stator winding in a certain order according to the change of the rotor position (that is, detects the position of the rotor pole relative to the stator winding, and generates a position sensing signal at the determined position. After processing by the signal conversion circuit, the power switching circuit is controlled, and the winding current is switched according to a certain logical relationship).

The self-generating coating is electroplated on the silicon steel sheet in the permanent magnet rotor.

The difference between a permanent magnet synchronous motor and a rare earth permanent magnet synchronous motor lies in the material of the permanent magnet.

Commonly used permanent magnet materials in motors include sintered magnets and bonded magnets, and the main types are aluminum nickel cobalt ferrite, samarium cobalt neodymium iron boron, etc.

Among them, samarium-cobalt-neodymium iron boron is a rare earth permanent magnet.

The permanent magnet rotor in Pengpai motor uses ferrite permanent magnets.

Ferrite permanent magnet is a permanent magnet made mainly of SR or Bao and Fe2o3 as raw materials.

Compared with other permanent magnets, ferrite magnets are hard and brittle and have lower magnetic energy.

However, it is not easy to demagnetize and corrode, the production process is simple and the price is low. Therefore, the production volume of ferrite magnets is the highest in the entire magnet industry and is widely used in industrial production.

Obviously, for Pengpai Motors with self-generating power technology, the performance of permanent magnets is no longer the first factor, and the price and difficulty of obtaining are the first factors.

The self-generated coating electroplated on the permanent magnet rotor will not interfere with the motor's own work due to the restrained nature of the coating material.

Instead, as the overall spatial displacement of the motor is displaced, the magnetic inductance lines of the earth's magnetic field are constantly cutting to generate current, which is reversely charged to the battery.

For example, if the battery supplies 1 kilowatt-hour of electrical energy to the motor for work, the self-generating coating will feedback 0.23 kilowatt-hour of electrical energy to the battery.

Of course, this was in an ideal situation. Wen Weiping, Yang and others bought an electric car, removed the battery and motor, and then installed the Thor battery and Pengpai motor.

After testing, they found that for every 1 kilowatt-hour of electricity consumed by the Pengpai motor, the power generation coating will feedback 0.15 to 0.18 kilowatt-hour of electricity to the battery.

If you run on the expressway, the feedback power can reach 0.18 to 0.21 kilowatt-hours.

In other words, even without Thor batteries, Pengpai Motor can already increase the battery life of electric vehicles by 15 to 20 (actually measured data).

With Thor battery, Pengpai Power's electric vehicles are expected to increase their actual range to 300 kilometers.

After all, Thor battery has a higher energy density of 11 than lithium batteries.

The domestic electric car is better than Yadi e6. The battery weight is about 620 kilograms, the total power storage capacity is 57 kilowatt-hours, the theoretical range is 360 kilometers, and the actual range is 260 kilometers.

If you think about it, your scalp will be numb. What is the concept of a 620 kilogram lithium battery? It is equivalent to one-third to one-quarter of a car's weight.

If Pengpai Power has so many batteries, the battery life will be overwhelming.

Think about the 620 kilogram Thor battery, the total power storage capacity reaches 117 kilowatt-hours, plus the 15-20 increase in Pengpai Motor.

The actual range can reach 600 to 630 kilometers. If the low-speed cruise mode is used, it can be increased to 750 to 800 kilometers.

The problem is that the production cost of 620 kilograms of Thor battery is 16,700 Huayuan. Even if the 50 kilogram of Thor battery is sold to Pengpai Power, the 620 kilograms of battery requires 31,000 Huayuan.

So stacking batteries is not cost-effective.

The Pengpai Powered Electric Vehicle under Huang Haojie's plan will not exceed 350 kilograms of Thor batteries.

This not only reduces costs, but also uses the extra weight to strengthen the body strength.

Huang Haojie looked at the sparse workers and the empty factory and ordered:

"Weiping! Pengpai Motor production line should be improved as soon as possible, and more employees should be recruited. In addition, suppliers of raw materials and spare parts should also find a few more. Try not to use spare parts from foreign companies to avoid being controlled by others at that time."

Wen Weiping wrote it down and nodded and replied:

"Don't worry, Mr. Huang! I will definitely urge you."

After Huang Haojie ordered Wen Weiping, he and Yang He came to the electrochemical chemistry laboratory.

Five figures wearing full-body protective clothing are busy in the laboratory.

Yang He knocked on the isolation door, and Li Xiang, who was doing the experiment, realized it.

Looking at Li Xiang with a haggard face, Huang Haojie frowned:

"Didn't you tell you? Work is work, but if you should rest, you will have to rest. Sooner or later you will die young and you are not allowed to work overtime at night."

Yang He, who was standing beside him, immediately smiled bitterly. The boss Huang Haojie can be said to be unique, and other people's bosses want employees to work overtime every day.

But the Milky Way is different. Even if the production line cannot be stopped, three shifts are used, plus one shift to allow employees to rest at least two days a week and have three times their salary during holidays.

It can be said that employees are relatively happy in galaxy enterprises.

"I understand, I'll go to rest after finishing this experiment. Boss, I've got some idea of ​​the compound you calculated and deduced." Li Xiang didn't care about the topic.

"Well! Take your experiment slowly, pay attention to rest, and our technical reserves can be dealt with for the time being." Huang Haojie nodded.

He turned around and asked Yang He, "Mr. Yang, how are your motor designs doing?"

"Mr. Huang! Come with me." Yang He took Huang Haojie to the electrical engineering laboratory beside him.

There were also four people working inside. When they saw Huang Haojie quickly put down their work.

"Mr. Huang!" "Mr. Huang!"

After all, the engineers were even more straightforward. They sincerely admired Huang Haojie, who invented the Thor battery and the Pengpai motor.

"Well! Everyone keep busy!" Huang Haojie is often in various laboratories and is familiar with these engineers and researchers.

"Mr. Huang! Look, this is the self-generated induction motor we designed." Yang He said, pointing to a motor that looks like a squirrel cage.

Huang Haojie looked at it and found that this self-generated induction motor is much more complicated than a permanent magnet synchronous motor. He raised his head and asked:

“How effective and other performance?”

Yang He reported clearly: "The efficiency is about 90-92, and the speed exceeds 9500-9600 rpm."

The reason why Huang Haojie asked Yang He to develop induction motors is mainly for the consideration of future high-end models.

After all, in order to have strong explosive power and fast start, an induction motor is essential. The disadvantage of induction motor is its low efficiency, especially at low speeds.

Therefore, domestic electric vehicle companies mostly use permanent magnet synchronous motors, while foreign Teslas and others use induction motors.
Chapter completed!