The difference between the direct current electromagnet and the AC electromagnet

The difference between the direct current electromagnet and the AC electromagnet
At present, there are mainly two kinds of electromagnets, one is DC electromagnet, the other is AC electromagnet.
DC electromagnet
AC electromagnet

People familiar with the product know that the structure of the DC electromagnet is wide and long, and the AC electromagnet structure is flat. In fact, this design has its reasons, relatively, the structure of the DC electromagnet is more conducive to heat dissipation, increasing the surface of the area, the heat dissipation surface naturally becomes larger. While the core of AC electromagnet will produce eddy current loss, the flat structure is also the principle of applying heat dissipation.

If you ask that kind of product will be better, there is not a standard answer. But in principle, the DC electromagnet is relatively superior to the AC electromagnet, but it needs to change the voltage and rectify equipment to make the application cost rise. Now, many electromagnetic valve manufacturers put the rectifier bridge in the coil shell, and the external sign is that AC220V is actually the internal DC coil, which has a good effect.