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The scope of use and correct use of low-temperature lithium-ion battery packs. Low-temperature lithium-ion batteries refer to operating temperatures below -20°C, and low temperatures have an impact on the positive and negative electrodes, electrolyte, and adhesives of lithium iron phosphate battery packs. The exploration and research on the low-temperature resistance of lithium-ion batteries by industry enterprises and scientific research institutions mainly focus on the process improvement of the existing positive and negative materials, and by increasing the local environmental temperature of the battery to create conditions for the battery to work at low temperatures.   The scope of use of low-temperature lithium-ion battery packs   In recent years, the use of lithium ion batteries has become more and more widespread....

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Recently, I heard that 4 wheel electric scooters like Benjamin’s have become popular again. It seems that they are used as transportation vehicles abroad. This is not surprising to me. What surprised me is that the industry uses Hall-powered drives instead of No sense drive! After Benjamin launched the open source design of non-sense square wave and non-sense foc, we believe that 90% of people will try to transplant to cheap chips, especially domestic m0 cores. In addition, the parameter measurement function inside is used as a symbol of independent intellectual property rights in advertising. This is just as normal as turning foreigners' open source into closed source. I asked my friends: Many people have developed open source solutions, and...

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Skateboard brushless DC motor bearing, also known as motor bearing or motor bearing, is a special bearing specially applied to the motor or motor. The bearing used in the motor is a part that supports the shaft. It can guide the rotation of the shaft and can also withstand the idling parts on the shaft. The concept of the bearing is very broad. There are four types of bearings commonly used in motors, namely rolling bearings, sliding bearings, joint bearings and oil-impregnated bearings. Common motor bearings are rolling bearings, and DC brushless motors use rolling bearings. Today we will briefly analyze the precautions when selecting bearings for brushless DC motors: Used in a low temperature environment, the design of the...

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The brushless DC motor is connected to electricity during use, and the efficiency of the motor can be higher when the power is turned on. The voltage of the motor also fluctuates slightly during operation, but overall, the voltage is still very stable. How to make the voltage of the electric skateboard motor more stable? 1.Connect a suitable resistor in parallel with both ends of the brushless DC motor resistance. According to the principle of resistive load, the resistance value changes after heating to obtain a non-linear resistance characteristic, which makes the field resistance line and the initial segment of the excitation characteristic larger. Obtain a point of intersection with the no-load characteristic curve. 2.Use generator automatic excitation adjustment device,...

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Electric skateboard motor is a device that converts electrical energy into kinetic energy. There are many types. The phenomenon and causes of damage to different types of motors will be different, but in summary, there are two major categories: electrical and mechanical. 一. The bearing is broken, the bearing temperature is too high, and the raceway and rolling elements have cracks and scars. The lubricating oil is insufficient, aging or excessive, the lubricating oil should not exceed 70% of the bearing cap and the volume of the bearing. There are impurities such as iron powder in the lubricating oil, or the oil ring inside is stuck. It is not installed in place, such as the bearing, the stop of the...

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