Cooling device for molded transformer

Abstract

An object of the present invention is to provide a cooling apparatus for mold transformers that can effectively cool a core and low and high voltage coils which are sources of generating heat in the mold transformer. In order to achieve the object as above, the present invention provides a cooling apparatus (600) for mold transformers, which is installed at opposite sides of a lower portion of the mold transformer having a first space (S1) formed between a core (100) and a low voltage coil (210) and a second space (S2) formed between the low voltage coil (210) and a high voltage coil (220), characterized in that the cooling apparatus comprises a duct (630) extending from the cooling apparatus in a direction toward the mold transformer, a discharge port (640) of the cooling apparatus is configured to direct toward lower ends of the low voltage coil (210) and the high voltage coil (220), so that cooling air discharged from the duct is injected into the inside of the first and second spaces.

Description

technical field [0001] The present invention relates to a molded transformer, and more particularly, to a cooling device for a molded transformer for effectively cooling heat generated in the molded transformer. Background technique [0002] Molded transformers are solid insulation type transformers in which the coils are molded with epoxy to prevent environmental contamination. [0003] figure 1 is the front view of a molded transformer according to the prior art, figure 2 is used to show figure 1 A schematic diagram of the arrangement relationship between the iron core and the low voltage / high voltage coils in the molded transformer, and image 3 is along figure 1 A cross-sectional view taken along line I-I in . [0004] In the following, reference will be made to Figure 1 to Figure 3 A molded transformer according to the prior art is described. [0005] Such as figure 1 As shown in , the molded transformer includes an iron core 10, a coil 20 wound around the iro...

AI Technical Summary

Problems solved by technology

[0022] Briefly, there is a problem in the conventional cooling device 60 for molding transformers in that it cannot force cooling air to flow strongly into the first space S1 and the second space S2, and thus cannot cool effectively as the molded transformer. Iron core 10, low-voltage coil 21 and high-voltage coil 22, the main heat source in the transformer

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