Regarding the characteristics of the electric forklift charger, the operators are not very familiar with it. Improper use may shorten the life of the electric forklift battery, and it is a headache after the power and service time are significantly reduced. Today, EFORK will take you to understand the characteristics of two commonly used chargers.

1. Power frequency charger
The power frequency of an electric forklift refers to the low and medium frequency, which is generally 50Hz in China. The linear power supply is used, and the transformer is generally used to reduce the high voltage to low voltage, and then output the DC voltage through rectification. Because there is a large transformer in the power frequency charger, it has the disadvantages of a large weight and large internal consumption; The power device of the power frequency charger has been working, and the working efficiency may be reduced. However, because of this, the power frequency charger has the advantages of simple structure, strong load capacity, and strong reliability. Linear power supplies are easy to maintain because most users have maintenance personnel who are familiar with linear power supplies and have spare parts for this. The maintenance tool only needs a multimeter to solve the problem, and a more careful electrician can also do it. Generally, no sequelae are left after maintenance. The fault can be eliminated and the performance can be completely recovered.

2. High-frequency charger
The power device of the switching power supply of the high-frequency charger of the electric forklift is in the state of high-frequency on and off when working. The charging process is an energy conversion process such as "electrical energy-magnetic energy-electrical energy". First, the alternating current of the power frequency (50Hz) is converted into the high-frequency current, and then it is converted into a low-voltage through the high-frequency transformer. After rectification, it outputs a low-voltage direct current, and the voltage is stabilized by controlling the oscillation frequency. Therefore, when the shielding of the switching power supply is not done well, it is easy to lose the voltage stabilizing performance due to the interference of transmitted harmonics, resulting in voltage fluctuation, or frequency variation due to its high-frequency interference. At the same time, if the protection circuit of the switching power supply is not done well, once it fails, its voltage may rise suddenly and burn the battery. The high-frequency charger uses high permeability materials as the transformer. The higher the frequency, the higher the efficiency of the conversion process, the less energy wasted on heating and vibration, and the smaller the magnetic core of the transformer required for the higher frequency electric energy conversion. Therefore, the high-frequency charger has the characteristics of high efficiency, small volume, and lightweight.

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