The material of the potting mold has a profound in

The potting module interface of the high-voltage capacitor will leave a line, as if the capacitor is divided into two halves.

Why is there any problem with the use of metal for potting, and some people have been unsuccessful? The reason is that instead of using a piece of metal to make a mold, instead of using a piece of metal to synthesize a set of molds, when the capacitor is potted Cooling down, you only need to separate the two halves of the mold, you can take it out. As shown above, there will be a line on the capacitor, you can clearly imagine the mold form. This two-in-one method effectively avoids the high-voltage capacitor in After the glue is applied, the chip is crushed. Because "not a piece of iron." The internal stress has a place to vent.
In addition to the use of metal molds, there are a large number of enterprises using plastic molds. Generally use plastic king, can successfully avoid the problem of internal stress extrusion high-pressure ceramic chips. Because plastic king's thermal expansion and contraction effect is not obvious, can effectively protect high pressure The ceramic chip is not crushed.
Regardless of the material used to make the potting mold for high-voltage ceramic capacitors, we must consider the above problems. In addition, we must pay attention to: the mold should be light, easy to dissipate heat and heat; the mold should be strong and effectively pressed The two poles of the capacitor will not cause the two poles to fall off due to thermal expansion and contraction.