Outer-layer variable heat dissipation structure of transformer

Abstract

The invention discloses an outer-layer variable heat dissipation structure of a transformer, and belongs to the technical field of transformer equipment. Composite variable cooling fins can be innovatively introduced into the transformer body. The deformable shape-change heat exchange layer is attached to the heat dissipation substrate for rapid heat conduction. An external water-absorbing water-based ball is used as a cold source. A thermal extension trigger cylinder arranged in the heat dissipation substrate generates an expansion phenomenon after sensing heat. On one hand, the water-based balls are extruded to release water, and on the other hand, the expansion action of the thermal extension trigger cylinder is continued, the water-based ball is also used for pulling the shape-change heat exchange layer to deform to form a shape similar to a tent, and performing second cooperation with the thermal extension trigger cylinder. The outer surface of the heat dissipation substrate can be exposed, water can absorb heat conveniently to achieve evaporation, meanwhile, the shape change heat exchange layer wraps the heat extension trigger cylinder and then absorbs heat away, the heat extension trigger cylinder restores to conduct the next time of variable heat dissipation, and therefore the heat dissipation effect of the transformer is remarkably improved.

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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