A laminated sheet heat dissipation mechanism for transformers

Abstract

The invention discloses a laminated heat dissipation mechanism for a transformer, and belongs to the field of transformer heat dissipation. The laminated heat dissipation mechanism for the transformercan change a heat conducting medium in gaps between cooling fins by a laminated heat transfer tube and a heat transfer network, so as to accelerate the dissipation of the heat in the gaps to improvea heat dissipation effect and efficiency. In this process, the heat on the cooling fins first passes the heat transfer network. A solid-liquid heat conductor in the heat transfer network can accelerate heat adsorption and conduction, that is, effectively accelerate the transfer of heat to the laminated heat transfer tube. Further, the laminated heat transfer tube, when heated, makes a quantitativevariable laminate originally attached to the surface of the heat transfer tube protrude, namely the surfaces in contact with each other of the heat transfer tube and the quantitative variable laminate both can be directly exposed, thereby increasing the external heat dissipation area of the laminated heat transfer tube, and further effectively improving the heat dissipation efficiency.

Description

Technical field [0001] The invention relates to the field of transformer heat dissipation, in particular to a laminated heat dissipation mechanism for a transformer. technical background [0002] Transformer cooling refers to radiating the heat generated by the running transformer by a certain method. When the transformer is running, the heat generated by the loss of winding and iron core must be dissipated in time to avoid overheating and insulation damage. For small-capacity transformers, the ratio of external surface area to transformer volume is relatively large, so self-cooling can be used to dissipate heat through radiation and natural convection. Self-cooling method is suitable for indoor small transformers. In order to prevent fire, it is generally dry without oil immersion. As the loss of transformer is proportional to its volume, with the increase of transformer capacity, its volume and loss will increase to the third power of core size, while the surface area will only...

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Problems solved by technology

[0003] Existing transformers are usually equipped with heat dissipation scales on both sides of the surface, and the heat generated inside the transformer is directly conducted outward through the external heat dissipation scales. The heat dissipation scales can increase the contact area with the outside world to accelerate heat dissipation. However, in actual use, When the heat on the heat dissipation scales is dissipated to the gap between the two heat dissipation scales, the heat dissipation medium is air at this time, and its surroundings are surrounded, and only the gap between the two scales can dissipate heat, resulting in a larger heat dissipation in the gap. Slow, so that the temperature near the surface of the transformer cannot be dissipated in time, and the heat dissipation efficiency cannot fully meet the heat dissipation requirements of the transformer

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