Traction inversion device

Abstract

The invention provides a traction inversion device, which comprises a power module, a controller for controlling the power module and a heat pipe assembly, wherein the power module is connected with the heat pipe assembly; and the controller is electrically connected with the power module. The device also comprises a contactor; the contactor is electrically connected with the power module; a copper busbar connection assembly is arranged between the power module and the contactor; the copper busbar connection assembly comprises a first copper busbar assembly, a second copper busbar assembly anda third copper busbar assembly; the first copper busbar assembly is electrically connected with the power module; the second copper busbar assembly is electrically connected with the first copper busbar assembly and the third copper busbar assembly respectively; and the third copper busbar assembly is electrically connected with the contator. According to the traction inversion device provided inthe invention, the contactor is integrated as a whole, the vehicle body layout difficulty is reduced through arranging the copper busbar connection assembly, wiring trouble is avoided, cooling is facilitated, the connection effects are ensured, and assembly and disassembly are convenient.

Description

technical field [0001] The invention relates to the technical field of rail transit traction, more specifically, to a traction inverter device Background technique [0002] Permanent magnet synchronous motors have the advantages of high efficiency, high power density, and strong overload capacity. The traction system using permanent magnet synchronous motors is also known as the third-generation rail transit traction technology. The traction inverter is one of the key components of the permanent magnet traction system of the subway, and its operating status is crucial to the operation of the subway train. In order to ensure the reliability of the operation of the traction inverter, the electrical design and structural design of the inverter cabinet are very important. [0003] Subway trains mainly use asynchronous motor traction inverters. The layout of them is unreasonable and the space utilization rate is not high, which increases the difficulty of vehicle layout and is n...

AI Technical Summary

Problems solved by technology

[0004] At present, the measures taken by permanent magnet subway trains often set up a separate isolation contactor box, which increases the difficulty of the overall layout of the car body. At the same time, it needs to be wired back and forth in the small space under the car, which is not good in manufacturability and poor in maintainability.

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