A traction converter

Abstract

The invention discloses a traction converter, which includes a box body and a bracket arranged in the box body, the box body includes a front panel, a rear panel, a left side panel, a right side panel, an upper cover panel and a bottom panel , an air duct is formed on the bracket from the front panel to the rear panel, and the high-voltage input component, power inverter unit, low-voltage control unit and filter reactor are integrated in the box, so the box can be directly fixed on the vehicle and installed , The maintenance process is simple and convenient; at the same time, the length of the jumper cables between the modules is reduced, which further saves the equipment space and improves the reliability of the equipment; in addition, only one fan can reduce the heat generated in the box The large modules dissipate heat, thereby realizing the integration and unification of the heat dissipation system. The present invention rationally arranges the heat levels of the above-mentioned components, so that the flowing air first dissipates heat to the power inverter unit, and then conducts heat dissipation to the filter reactor. Heat dissipation, and achieved a good heat dissipation effect.

Description

technical field [0001] The invention relates to a flow conversion device, in particular to a traction flow conversion device applied to rail vehicle equipment. Background technique [0002] At present, with the rapid development of rail transit technology, traction converters are widely used in the traction main circuit of electric locomotives and other electric vehicles equipped with electric transmissions, mainly used to realize the conversion of electric energy between the DC side and the AC side, and It controls and regulates various traction motors. The traction converter generally consists of high-voltage input components, main circuit equipment such as power inverter units, and control circuit equipment such as low-voltage control units. Today, with the continuous improvement of rail transit technology, the main functional modules of the traction converter are required to be easily disassembled and replaced, saving installation space and cost, meeting the requirement...

AI Technical Summary

Problems solved by technology

Such a decentralized structure design is likely to lead to the following defects: 1. The number of modules constituting the traction converter device is large, the integration level is low, the work of installation and fixation, disassembly and maintenance is cumbersome, and wiring is difficult; 2. The devices are connected by jumper cables, increasing the Reduce the space occupied by the traction converter after assembly and reduce the reliability of electrical equipment; 3. The existing traction converter needs to install multiple radiators, which are scattered in different positions of the vehicle body along with the components. Difficult to achieve integration and unification of cooling system

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