Ventilation structure of high-power power conversion device based on heat pipe radiators

Abstract

The invention provides a ventilation structure of a high-power power conversion device based on heat pipe radiators. A main air passage is arranged in a cabinet body of the high-power power conversion device, radiator modules are arranged in the cabinet body, each radiator module comprises a baseplate, a housing constituted by aluminum zinc plates arranged on the upper surface, the lower surface and the back surface of the baseplate, and heat pipes which are mounted in the housing and connected with the back surface of the baseplate, a power device is mounted on the front surface of the baseplate, a plurality of the radiator modules are arranged in the cabinet body, a fan is arranged on the air inlet side of each radiator module, and the air outlet side of each radiator module is connected with the main air passage or the centrifugal fan in the cabinet body. A high-power power conversion device cabinet based on the heat pipe radiator modules can achieve the heat radiation requirement of the high-power power conversion device by enabling the reasonable air passage to adopt the air cooling form. Therefore, space occupied by a water cooling system is saved, the maintenance of a cooling system is also avoided, and the reliability of the high-power power conversion device is improved and the power density of the high-power power conversion device is increased.

Description

technical field [0001] The invention relates to a ventilation device for a power conversion device, in particular to a cabinet ventilation structure for a high-power power conversion device based on a heat pipe radiator. Background technique [0002] High-power power conversion devices are composed of high-power thyristor modules and IGBT modules. In order to ensure the reliable operation of these high-power devices, water-cooled radiators are generally used for heat dissipation. Since the water-cooling system is prone to electrical corrosion and condensation, it requires a closed pure water cooling system composed of a large number of water-cooling equipment such as resin tanks, heaters, and water pumps for cooling. In this way, it will take up a lot of space , and often need to carry out necessary maintenance on the water cooling system, which brings inconvenience to users. With the rapid development of heat pipe technology, the use of air-cooled heat pipe radiators can m...

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