The surging motor's factory.

Wen Weiping, president of The Paper Motor Company, was accompanying Huang Haojie and looking at the motor being trial-produced on the production line of the Surging 1 motor.

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

After all, the price of rare earth is too high, and it is also a strategic material, with rare earth permanent magnet synchronous motor, the cost is estimated to be 20,000 yuan, obviously this price will make the competitiveness of the surging motor decrease.

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

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

The ordinary permanent magnet synchronous motor with self-generating coating can already increase the power to about 103%, killing all the motors at once, and the rare earth permanent magnet synchronous motor is more against the sky, so it should be used as a technical reserve.

The surging 1 motor is composed of a permanent magnet rotor, a multi-pole winding stator, a position sensor, etc.

It is a kind of brushless DC motor, which uses semiconductor Hall switching elements to realize electronic commutation, that is, replacing the traditional contact commutator and brush with electronic switching devices.

It has the advantages of high reliability, no reversing sparks, and low mechanical noise.

The position sensor converts the current of the stator winding along a certain sequence according to the change of the rotor position (that is, detects the position of the rotor magnetic pole relative to the stator winding, and generates a position sensing signal at the determined position, and controls the power switching circuit after being processed by the signal conversion circuit, and switches the winding current according to a certain logical relationship).

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

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, the main types of which are alnico, ferrite, samarium cobalt, neodymium iron boron, etc.

Among them, samarium cobalt and NdFeB are rare earth permanent magnets.

The permanent magnet rotor in the surging motor is a ferrite permanent magnet.

Ferrite permanent magnet is a permanent magnet made mainly from SrO, BaO and Fe2O3.

Ferrite magnets are hard and brittle and have low magnetic energy compared to other permanent magnets.

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

Obviously, for surging motors with self-power generation technology, the performance of permanent magnets is no longer the first factor, but the price and difficulty of obtaining are the first factors.

The self-generating coating plated on the rotor of the permanent magnet does not interfere with the work of the motor itself due to the restrained nature of the coating material.

Instead, with the overall spatial displacement of the motor, the magnetic inductance lines of the earth's magnetic field are continuously cut to generate current, and the battery is charged in the opposite direction.

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

Of course, this is under ideal conditions, Wen Weiping and Yang and them, bought an electric car, removed the battery and motor, and then installed the Thor battery and surging motor.

After testing, they found that the average power consumption of the surging motor is 0.15~0.18 kWh of electrical energy fed back to the battery by the self-generated coating.

If you run on the highway, the feedback power can reach 0.18~0.21 kWh.

In other words, even without Raytheon batteries, the surging motor can already increase the range of electric vehicles by 15~20% (measured data).

With the addition of Raytheon batteries, the surging electric vehicle is expected to increase the actual range to 300 kilometers.

After all, Raytheon batteries have 11% higher energy density than lithium batteries.

The domestic electric car Biyadi E6 has a battery weight of about 620 kg, a total storage capacity of 57 kWh, a theoretical range of 360 kilometers, and an actual range of 260 kilometers.

Just thinking about it, my scalp is numb, what is the concept of 620 kg lithium battery, which is equivalent to one-third to one-quarter of the weight of a car.

If the surging power also piles so many batteries, the battery life can explode.

Think of 620 kg of Raytheon battery, the total storage capacity reaches 117 kWh, plus 15~20% of the surging motor.

The actual range can reach 600~630 km, and if the low-speed cruise mode is adopted, it can be increased to 750~800 km.

The problem is that the production cost of 620 kilograms of Raytheon batteries is 16,700 Chinese yuan. Even if the Thor battery is 50 kilograms sold to surging power, 620 kilograms of batteries cost 31,000 yuan.

So stacking batteries is not cost-effective.

Huang Haojie's planned surging power electric vehicle, all Raytheon batteries will not exceed 350 kilograms.

This not only reduces costs, but also allows the extra weight to be used to strengthen the body.

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

"Weiping! The surging motor production line should be improved as soon as possible, and more employees should be recruited, and raw materials and spare parts suppliers should also find a few more, and try not to use spare parts from foreign enterprises to avoid being controlled by others at that time. ”

Wen Weiping wrote it down, then nodded and replied:

"Don't worry, Mr. Huang! I'll definitely urge it. ”

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

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

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

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

"Didn't I tell you? Work is work, but you should rest, you will die young, and you are not allowed to work overtime at night. ”

Yang He on the side suddenly smiled bitterly, Huang Haojie, the boss can be said to be a maverick, and other people's bosses can't wait for employees to work overtime every day.

But the galaxy is different, even the production line that cannot be stopped, it uses three shifts, plus one shift, each employee has at least two days off a week, and three times the salary on holidays.

It can be said that among galactic enterprises, employees are relatively happy.

"Got it, I'll go to rest after I'm done with this experiment, boss, I already have some ideas about the compound you calculated and deduced." Li Xiang diverted the topic nonchalantly.

"Hmmm! Take your time in the experiment, pay attention to rest, our technical reserves can cope with it for the time being. Huang Haojie nodded.

He turned to Yang He again and asked, "Yang Gong, how is your motor design?"

"Mr. Huang! You come with me. Yang He took Huang Haojie to the electrical engineering laboratory on the side.

There were also four people working inside, and they saw Huang Haojie hurriedly put down the work in his hands.

"Mr. Huang!" "Mr. Huang!" ……

After all, the engineers are more straightforward, and they sincerely admire Huang Haojie, who invented the Thor battery and the surging motor.

"Hmmm! Keep busy! Huang Haojie is often in various laboratories and is familiar with these engineers and researchers.

"Mr. Huang! You see, this is the self-generating induction motor we designed. Yang He pointed to a motor that looked like a squirrel cage and said.

Huang Haojie took a look and found that this self-generated induction motor was much more complex than the permanent magnet synchronous motor, raised his head and asked:

"What about efficiency and other performance?"

Yang Heru reported that "the efficiency is about 90~92%, and the speed is more than 9500~9600 rpm......"

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

After all, if you want to have strong explosive power and a fast start, an induction motor is indispensable, and the disadvantage of an induction motor is that it is inefficient, especially at low speeds.

Therefore, domestic electric vehicle companies mostly use permanent magnet synchronous motor motors, and foreign Tesla and the like mostly use induction motors.