A Transformer Outer Layer Variation Heat Dissipation Structure

Abstract

The invention discloses a variable-type heat dissipation structure for the outer layer of a transformer, which belongs to the technical field of transformer equipment, and can innovatively introduce a composite variable-type heat dissipation sheet on the transformer body, and use a deformable deformation-transformation heat layer to be attached to the heat dissipation substrate Conduct rapid heat conduction, and use the external water-absorbing water-based ball as a cold source. The thermal extension trigger cylinder built in the heat dissipation substrate will expand after sensing the heat. On the one hand, the water-based ball will be squeezed to release water. As the expansion action of the thermal extension trigger tube continues, the water-based ball also pulls the shape change heat layer to deform into a shape similar to a tent, and cooperates with the thermal extension trigger tube for a second time, which can expose the outer surface of the heat dissipation substrate, which is convenient The water absorbs heat to evaporate, and at the same time, the shape-changing heat layer wraps the thermal extension trigger cylinder to absorb heat, and the thermal extension trigger cylinder recovers for the next heat dissipation, thereby significantly improving the heat dissipation effect of the transformer.

Description

technical field [0001] The invention relates to the technical field of transformer equipment, and more specifically, relates to a transformer outer layer variable heat dissipation structure. Background technique [0002] A transformer is a static electrical device used to convert AC voltage and current to transmit AC power. It is based on the principle of electromagnetic induction to achieve electrical energy transfer. Transformers can be divided into power transformers, test transformers, instrument transformers and special-purpose transformers in terms of their uses: power transformers are necessary equipment for power transmission and distribution, and power distribution for power users; test transformers can withstand voltage (boost) for electrical equipment Test equipment; instrument transformers are used for electrical measurement and relay protection of power distribution systems (PT, CT); special-purpose transformers include electric furnace transformers for smeltin...

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Problems solved by technology

For small-capacity transformers, smooth oil tank surface is enough to cool the oil; for medium-capacity transformers, the surface of the oil tank should be wrinkled to increase the heat dissipation surface, or a fin or flat tube radiator should be installed to make the oil circulate in the radiator A radiation radiator should be added on the surface of the large-capacity transformer oil tank, but the existing transformer oil tank is basically static and passive during heat dissipation, and the heat dissipation effect is very limited, resulting in that the heat cannot be dissipated to the outside in time, resulting in local overheating inside the oil tank, and then Cause the transformer oil to decompose and produce gas, which affects the normal use of the transformer

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