External cooling device of high-voltage coil

Abstract

The invention discloses an external cooling device of a high-voltage coil. The external cooling device comprises an outer barrel, wherein a plurality of coamings are arranged in the outer barrel; the plurality of coamings synchronously move toward the circle center of the section of the outer barrel and can be connected with one another to form a barrel-shaped structure; the high-voltage coil is located in the barrel-shaped structure; spring dragging devices are arranged among the coamings and the inner surface of the outer barrel; annular cooling bags are further arranged among the coamings and the inner surface of the outer barrel; and the annular cooling bags are internally filled with cooling liquid. Compared with the prior art, the cooling liquid is added into the annular cooling bags to form a water cycle, and heat on the high-voltage coil is continuously brought away; the coamings retractably move so that the diameter of the formed barrel-shaped structure can be adjusted, and the barrel-shaped structure can be adaptive to the specifications of coils with different sizes; and the external cooling device of the high-voltage coil is commonly used for heat dissipation of the coils in an electric control cabinet, has strong applicability and has a good heat dissipation effect on the external high-voltage coil.

Description

Technical field [0001] The invention relates to a coil heat dissipation device, in particular to a high-voltage coil external cooling device, which belongs to the field of power control. Background technique [0002] All electromagnetic carriers of power transformers, such as iron cores, windings, lead wires, and structural parts that can be linked by leakage magnetic fields, are heating elements. The heat generated by the heating element will not only increase its own temperature, but also increase the temperature of the surrounding medium, especially when the local temperature is too high, it may cause premature insulation damage, or cause the insulation medium to age at a high temperature for a long time. Gradually lose its insulating properties. As we all know, the life of the transformer is the life of the insulating material. When the transformer is required to have a certain life, the insulating material should be guaranteed to have a corresponding life at a certain tempe...

AI Technical Summary

Problems solved by technology

The insulation tube is simple and easy to operate, which improves the voltage resistance of the transformer; the heat dissipation method is mainly to add an insulation tube in the coil to dissipate the internal heat, but if the external coil is in a high temperature environment, it cannot be well dissipated.

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