| 摘要 |
The present invention relates to a heat sink for a transformer, comprising: an upper header pipe (10) connected to an upper portion of an outer case of a transformer body; a plurality of heat dissipation plates (20) sequentially connected to the upper header pipe (10) and receiving insulating oil; a lower header pipe (10′) returning insulating oil which has discharged heat as ambient air, while flowing within the heat dissipation plates (20), to an interior of the outer case; and a bridge fin (30) installed within an air flow channel (22) formed between the heat dissipation plates (20) and coming into contact with ambient air so as to be heat-exchanged. The bridge fin (30) is formed of a material having excellent heat transmission properties and has first and second attachment parts (31, 32) installed to be in contact with an outer surface of the heat dissipation plate (20) and a connection part (33) connecting the first and second attachment parts (31, 32). A through hole (35) is formed in the connection part (33) to allow air to pass therethrough. According to the present invention, a temperature difference between the heat dissipation plates (30) is reduced to increase heat exchange efficiency. |
