Application products: high and low voltage inverter, direct inverter, indirect inverter
The inverter is mainly composed of rectifier (AC to DC), filter, inverter (DC to AC), braking unit, driving unit, detection unit, micro processing unit, etc. The inverter adjusts the voltage and frequency of the output power supply by breaking the internal IGBT, and provides the required power supply voltage according to the actual needs of the motor, so as to achieve the purpose of energy saving and speed regulation. In addition, the inverter has many protection functions, such as over-current, over-voltage, overload protection, etc. With the continuous improvement of industrial automation, frequency converter has been widely used.
In the use of frequency converter, the motor load is too heavy, which makes the frequency converter work over its rated current for a long time, which leads to the high temperature of the frequency converter, and then affects the use effect and product life.
There are two traditional methods to deal with the overheating of frequency converter: < br / >
The fan is used for heat dissipation, and the built-in fan of the frequency converter can take away the heat in the frequency converter box.
To reduce the operating environment temperature, the inverter is a power electronic device, including electronic components, electrolytic capacitors, etc., so the temperature has a great impact on its life. The ambient operating temperature of general frequency converter is generally required to be - 10 ℃ ~ + 50 ℃. If the operating temperature of frequency converter can be reduced, the service life of frequency converter will be extended and the performance will be stable.
What we have to mention here is the application of water cooling and heat dissipation, which can stably control the temperature of the inverter and adapt to various complex environments. To a certain extent, water cooling and heat dissipation protect the safety of the core, and the relatively closed space plays a protective role. More and more inverter related industries have applied water cooling and cooling, and there will be more and more mature applications in the future.
