High-capacity high-frequency transformer heat dissipation system with embedded ceramic heat pipes

Abstract

The invention discloses a high-capacity high-frequency transformer cooling system with embedded ceramic heat pipes, which is characterized by comprising an outer sleeve, a primary side framework, a secondary side framework, a magnetic core, a cooling pipe and a radiator, one side of the outer sleeve is provided with a first end cover, the other side of the outer sleeve is provided with a second end cover, the primary side framework is of a hollow cylinder structure and is arranged in the outer sleeve, and the secondary side framework is of a hollow cylinder structure and is arranged in the outer sleeve; a primary winding is arranged on the primary framework, the secondary framework is of a hollow cylinder structure and arranged in the primary framework, a secondary winding is arranged on the secondary framework, a magnetic core is arranged in the secondary framework, the radiating pipe is of an oval structure, radiating liquid is arranged in the radiating pipe, the radiating pipe is clamped on the primary framework and the secondary framework, and a radiator is arranged at one end of the radiating pipe. The invention aims to provide the high-capacity high-frequency transformer heat dissipation system with the embedded ceramic heat pipes, so that the insulation and heat dissipation capabilities of the transformer are greatly improved.

Description

technical field [0001] The invention relates to the technical field of large-capacity high-frequency transformers, in particular to a large-capacity high-frequency transformer heat dissipation system with an embedded ceramic heat pipe. Background technique [0002] The large-capacity high-frequency transformer is the core device of the power electronic transformer, and its performance directly affects the normal operation of the entire AC and DC distribution network system. There are two types of losses in high-frequency transformers, one is the core loss, which refers to the power loss caused by the alternating or pulsating magnetic field in the magnetic material, and exists in the form of heat; the other is the winding loss, which refers to the loss due to the coil winding The existence of ohmic resistance, the copper loss generated when the current passes through the coil winding, also exists in the form of heat. Different from the traditional DC resistance, affected by t...

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Problems solved by technology

The creepage distance can be optimized through structural design. The traditional insulating skeleton material has low withstand voltage capability, and the withstand voltage level of the transformer can only be increased by increasing the thickness of the insulating skeleton, which in turn reduces the power density of the high-frequency transformer. At the same time, relatively Thick insulating material greatly reduces thermal conductivity, making it more difficult to further increase the transformer capacity

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