High frequency power transformer

Abstract

The invention discloses a high-frequency power transformer which comprises a primary side which consists of a transformer magnetic core and a coil wound on the transformer magnetic core, wherein a secondary side comprises a first cooling housing and a second cooling housing which are matched with each other to form a cavity for containing the primary side, a first groove and a second groove are respectively arranged in the first cooling housing and the second cooling housing, the second cooling housing is raised out at the center of the second groove to form a lug boss, the lug boss penetrates through the transformer magnetic core to form an induction end of the secondary side, the first cooling housing is in insulating connection with the second cooling housing, and a water channel is formed in the first cooling housing and provided with a water inlet and a water outlet. According to the high-frequency power transformer, the transformer magnetic core and the coil of the primary side are evenly packed by the secondary side, and the secondary side is made from high-heat-conductivity and high-electric-conductivity material, so that the primary side can be directly cooled, and the local high temperature of the transformer magnetic core can be avoided; and the transformer is compact in structure design, the electromagnetic radiation can be reduced, and the use ratio of a magnetic field and the conversion efficiency of the energy can be improved.

Description

technical field [0001] The invention relates to a power transformer, in particular to a water-cooled high-frequency power transformer. Background technique [0002] The function of the power transformer is power transmission, voltage conversion and insulation isolation. As a main soft magnetic electromagnetic component, it is widely used in power supply technology and power electronics technology. [0003] In the switching power supply, the high-frequency power transformer is the driving force for electric energy conversion, and is an important component that determines the performance of the switching power supply. In the switching power supply circuit, the transformer plays the role of magnetic coupling, transmitting electric energy, storing electric energy, suppressing peak voltage and peak current. It can also form a frequency oscillator with a capacitor circuit to generate resonance, adjust and control the output voltage, and realize voltage rise and fall. Therefore, ...

AI Technical Summary

Problems solved by technology

Although this structure replaces the air cooling of conventional dry-type transformers, it needs to wind a water jacket on the coils on the iron core, resulting in an increase in the winding spacing of the coils on the iron core, resulting in large leakage inductance and skin effect, resulting in The power output of the transformer is unstable and the power conversion efficiency is not high

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