High-integration converter module

Abstract

The invention relates to a high-integration converter module, which comprises a power unit, a radiator, a drive plate, a busbar and a controller, wherein a composite busbar is adopted as the busbar; the busbar sequentially comprises a first anode layer, a three-phase rectifier input layer, an output layer, a second anode layer and a cathode layer from left to right; the overall composite busbar is in an inverted L form after being assembled; the overall busbar is divided into busbar horizontal parts and busbar vertical parts; the busbar vertical parts and an IGBT installation plate of the power unit are tightly laminated; the busbar horizontal parts are horizontal detection parts; and wiring terminals on the horizontal detection parts are distributed by layers. The busbar of the converter module is arranged by layers; the arrangement orders of various layers of the busbar are matched with a circuit structure of the power unit, so that signal traces are reduced to the maximal extent; the anti-jamming capability of the module is strengthened; various devices of the converter power unit are integrated through the busbar; the high-integration converter module is convenient to install, compact in structure and good in electrical performance; and the product stability is good.

Description

technical field [0001] The invention relates to a converter module, in particular to a highly integrated converter module. Background technique [0002] A converter is a device installed in the traction circuit of an electric locomotive to convert electric energy. The current converter has been widely used in rail transit, power systems and military equipment. The core unit of the converter is the power unit, which mainly includes switching components, driving equipment, capacitors and wiring. The existing power unit has the following problems: [0003] 1) Use copper bars or cables to connect various devices, the wiring is complicated, and parameters such as stray capacitance are difficult to control; [0004] 2) Only integrate IGBT switching devices and capacitors, etc., and the integration level is not high; [0005] 3) Single function, the power unit only includes rectification function, inverter function or chopping function; [0006] 4) It is difficult to improve th...

AI Technical Summary

Problems solved by technology

[0003] 1) Use copper bars or cables to connect various devices, the wiring is complicated, and parameters such as stray capacitance are difficult to control;

[0004] 2) Only integrate IGBT switching devices and capacitors, etc., and the integration level is not high;

[0005] 3) Single function, the power unit only includes rectification function, inverter function or chopping function;

[0006] 4) It is difficult to improve the uniformity of product quality and later maintenance;

[0007] 5) The heat dissipation system of the converter is huge and complex, and the maintenance cost is high

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