Talking about the knowledge of electric vehicle battery and motor
In recent years, relevant state departments have vigorously advocated energy conservation and emission reduction, and parts such as batteries and motors of electric vehicles have become issues that enterprises need to pay attention to. Do you know about electric vehicle battery and motor knowledge? Let's explore the role of the heart of the tram!
Electric vehicle battery:
The vast majority of current electric vehicles are equipped with lead-acid batteries, because lead-acid batteries are low-cost and cost-effective. In 1860, France's Plante invented a battery with lead electrodes. The unique feature of this type of battery is that when the battery voltage drops after a period of use, a reverse current can be applied to it to make the battery voltage rise. Because this kind of battery can be charged and can be used repeatedly, it is called "lead-acid battery".
Electric vehicle motor:
Electric vehicle motors have different forms according to their use environment and frequency of use. Different types of motors have different characteristics. Electric vehicle motors generally use permanent magnet DC motors. The so-called permanent magnet motor means that the motor coil is excited by a permanent magnet, and the coil is not excited. In this way, the electric energy consumed by the excitation coil is saved, and the electromechanical conversion efficiency of the motor is improved, which can reduce the running current and prolong the continuation mileage for electric vehicles using limited energy on-board. Electric vehicle motors are classified according to the power-on form of the motor, and can be divided into two categories: brushed motors and brushless motors; according to the mechanical structure of the motor assembly, they are generally divided into "toothed" (the motor has a high speed and needs to pass through gears). deceleration) and "toothless" (motor torque output without any deceleration) two categories. An electric motor is a rotating electrical machine that converts electrical energy into mechanical energy. It mainly includes an electromagnet winding or distributed stator winding for generating a magnetic field and a rotating armature or rotor.
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