The importance of welding technology in inverter maintenance

Whether the inverter maintenance personnel's welding technology is too hard is directly related to the quality and results of the maintenance of the inverter. If the quality of the soldering during repair is not sufficient, the component pins will be broken when the component is removed, the printed circuit board PCB will be soldered, the components will be soldered loosely, and the two components will be pinned. Inadvertently welded to the same situation, so that there will be an old failure to repair the new fault out, and in the end still can not fault the inverter maintenance phenomenon, in order to let friends avoid this happening, Xiao Bian to tell you We talk about the importance of welding in inverter maintenance and hope to help everyone.

The importance of welding technology in inverter maintenance

In the maintenance of the inverter, the most prone to the occurrence of welding is the occurrence of a false weld. Weld-welding is the surface that appears to be welded together. Actually, the solder and the pins are not actually connected, or the pins and the pads are not firmly welded together. Such a condition is called "weld-welding". When friends know that there is a false weld, the method of avoiding the cold soldering is to solder the components first by soldering them to the pins of the components and then soldering them to the circuit board, or by first cleaning the pins of the components. With welding, you can avoid the occurrence of an imaginary weld.

In the inverter maintenance, there is also a relatively easy to occur welding situation is the occurrence of lap welding. What is a lap? In soldering, the component pins are arranged too tightly (for example, when soldering an SSOP packaged IC pin). Inverter service personnel weld two solder joints that should not be included together. It is called lap welding. The emergence of this situation does not know maintenance personnel, to avoid the lap welding method is to be careful when repairing the inverter, each welding a component, we must carefully look at the situation did not appear lap welding, If there is any, it will be rectified immediately. After the inspection is completed, a check will be carried out to confirm that there will be no lap welding.

The above two points are the two most frequent problems in frequency inverter maintenance. Xiaobian hopes that friends do not ignore the above two points to avoid failures. However, due to welding quality problems, the inverter has not been able to repair the inverter. The situation arises.

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