Heat pipe type power module of high-efficient wind power frequency converter

Abstract

The invention relates to a heat pipe type power module of a high-efficient wind power frequency converter, which comprises a substrate, wherein, a heat pipe radiator is fixed at the rear part of the substrate, an air blower is arranged at the bottom part of the heat pipe radiator, an air introduction pipeline is arranged at the top part of the heat pipe radiator, and an exhaust fan is arranged inthe air introduction pipeline. Heat emitted by the power device is conducted onto the heat pipe radiator through the substrate during the operation process of the power module, the heat is radiated into the air introduction pipeline under the action of the air blower at the bottom part of the heat pipe radiator, and then the heat is rapidly pumped to the outside of a cabinet body of the frequencyconverter under the action of the exhaust fan in the air introduction pipeline. The heat pipe type power module of the wind power frequency converter not only has the cooling effect of water cooling,but also has a simple structure of air cooling, and the power module simultaneously avoids a complicated system of a water cooling structure and the technical difficulty caused by parallel connectionof the module of an air cooling structure, thereby improving the heat radiation efficiency of the power module of the frequency converter, enhancing the reliability of the operation of the power device, simultaneously reducing the overall design cost and the design risk of the system and realizing the higher comprehensive performance-price ratio.

Description

technical field [0001] The invention relates to a wind power frequency converter, in particular to a power module, which is a component of the wind power frequency converter, specifically a heat pipe type high-efficiency wind power frequency converter power module. Background technique [0002] As a key component of the wind power inverter, the power module is responsible for the function of changing the electric energy from AC to DC and DC to AC; usually, the power module of the wind power inverter adopts a water-cooled or air-cooled structure, and the water-cooled structure is suitable for High power inverter module. The power module of the air-cooled structure includes a housing composed of a front plate, two side plates and a bottom plate, a base plate is fixed between the two side plates, IGBT power components are fixed on the base plate, and a radiator composed of heat sinks is fixed on the rear of the base plate , the lower part of the radiator is fixed with a fan. ...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem that the existing water-cooled and air-cooled structures are not suitable for medium-power frequency converter power modules, especially the existing air-cooled structure has poor cooling effect and the divergent wind flow generated will cause damage to other electrical components in the wind power frequency converter. To solve the problem of adverse effects, a heat pipe type high-efficiency wind power inverter power module is provided

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