Water-cooling type high-frequency transformer and secondary rectifier

Abstract

The invention discloses a water-cooling type high-frequency transformer and a secondary rectifier. The water-cooling type high-frequency transformer and the secondary rectifier comprise four water-cooling radiating fins, an annular magnetic core, a transformer primary winding, two copper bars and two groups of common-cathode rectification diode modules, wherein the first water-cooling radiating fin serves as a mounting base and a cathode of a power supply of a whole structure of the power supply, the fourth water-cooling radiating fin serves as an anode of the power supply, the annular magnetic core wound with the transformer primary winding is arranged on the first water-cooling radiating fin, cathodes of the two groups of common-cathode rectification diode modules are symmetrically connected with the fourth water-cooling radiating fin, anodes of the two groups of common-cathode rectification diode modules are respectively connected together by the second water-cooling radiating fin and the third water-cooling radiating fin, penetrate through the copper bars of the annular magnetic core respectively and are connected with the first water-cooling radiating fin, so as to form the transformer primary winding and the secondary rectifier. The water-cooling type high-frequency transformer and the secondary rectifier are very compact and concise in structure, uniform in heat distribution and good in radiating effect and has the advantages that a connecting resistance is small, the leakage inductance is small, and the mutual interference is small, thereby being particularly suitable for the field of a water-cooled high-power high-frequency switch power supply.

Description

technical field [0001] The invention relates to a low-voltage, high-current, high-frequency switching power supply transformer and a secondary rectifier for the production of polysilicon, electroplating, electrolysis, electric vehicle charging and other industries, in particular to a water-cooled high-frequency transformer and a secondary rectifier. Background technique [0002] Polysilicon production, electroplating, electrolysis, electric vehicle charging and other industries require high-power power supplies. Due to the small size, light weight, good adaptability, and good dynamic performance of high-frequency switching power supplies, it is conducive to the realization of automation and intelligent control. Thyristors are gradually replaced rectified power supply. However, high-frequency switching power supplies have strict requirements on heat dissipation and connection resistance. At present, copper bars and wires are generally used as connecting wires and secondary wi...

AI Technical Summary

Problems solved by technology

However, high-frequency switching power supplies have strict requirements on heat dissipation and connection resistance. At present, copper bars and wires are generally used as connecting wires and secondary windings of high-frequency transformers in the connection mechanisms of high-current high-frequency switching power supplies. Long, complex structure, high process requirements, difficult installation, easy to cause problems such as large connection resistance, temperature rise, large leakage inductance, and low space utilization, which have a great impact on the operating efficiency and stability of switching power supplies

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