The Differences between Air-cooled and Water-cooled induction heating power controller?

The induction heating power controller consists of two parts:

1, AC power supply that provides energy, also known as frequency conversion controller or main power controller or main control;

2, Induction coil that completes the electromagnetic induction energy conversion, also known as  inductor or heating coil.

Once the induction heating power supply starts to work, the high-power switching devices such as IGBT and other components on the control core of main control will gradually become hot. At this time, it is necessary to cool the main control to prevent electronic components from damage due to excessive temperature. Generally, the main control equipped with temperature detection and overheating protection functions. If the heat dissipation is poor, the induction heating power  will stop working due to overheating protection.

So how do we cool down the induction heating main power controller?

There are two methods, one is to use water cooling, and the other is to use air cooling. Now let's explain how to make it water-cooled or air-cooled the induction heating main power controller.

1. Water-cooled the induction heating main power controller: We'll install a water inlet and a water outlet pipes for water circulating thought the whole of main controller and take away  heat from motherboard and other related main parts.

2. Air-cooled the induction heating main power controller: The practice is to install a fan on the radiator or case of the main control part, and let the wind take away the heat on the motherboard and other electronics. The air-cooled induction heating power controller is generally suitable for low-temperature heating or high-temperature heating less than 600 C degrees. It can also connect to a  water-cooled induction heating coil.

Speaking of the induction coil, which also be divided into two types: air-cooled and water-cooled

1, air-cooled induction coil

Air-cooled induction coil is mainly made of natural cooling by air or forced cooling by fan. It is generally made from soft copper core cable with coating high temperature resistance materials like fibra glass etc. In some occasions, copper bars, copper wires and other materials can also be used too. The flexible cable has no fixed shape, and can be directly wound on the surface of the workpiece, or can be made into a fixed shape through the frame and mold. Generally, the heating temperature of air-cooled induction coil is working around 200 C degrees and the workpiece need to be insulated.

2, water-cooled induction coil

Water-cooled induction coil is mainly made from soft copper tube into a certain shape, which is suitable for applications with large output current or high heating temperature. The heating temperature can reach to 1000C degrees or higher to 2000C degrees or more. The main advantage is that the cooling effect is good and the heating speed is fast. In general, the effect of water cooling will be better, and the heat of water cooling can be easily recycled, but the auxiliary facilities of water cooling will be more, and the relative manufacturing cost will be higher.