Integrated electrical device for motor controller

Abstract

The invention relates to an integrated electrical device for a motor controller, which comprises a bracket, an IGBT, a thin film capacitor, a Y capacitor, a Hall sensor, a driving board, a control board and a three-phase copper bar, and is characterized in that the bracket comprises a first assembly groove and a heat dissipation channel which are arranged side by side, and one side of the first assembly groove is provided with a second assembly groove; the thin-film capacitor and the Y capacitor are respectively arranged in the first assembly groove and the second assembly groove, the plurality of IGBTs are divided into two groups and are respectively attached to two sides of the heat dissipation channel, the driving board is arranged above the thin-film capacitor, and the control board is arranged above the driving board; the input end and the output end of the thin film capacitor are electrically connected with the driving board, and the positive input end and the negative input end of the IGBT are electrically connected with the driving board. Compared with the prior art, the modular design is adopted, and the device has the advantages of being compact in structure, high in space utilization rate, high in integration degree and high in power density and is suitable for disassembly and maintenance.

Description

technical field [0001] The invention relates to the field of motor controllers, in particular to an integrated electrical device for a motor controller. Background technique [0002] With the serious environmental pollution and the depletion of oil resources, new energy vehicles have become an inevitable development direction. At this stage, the heat dissipation modules inside the new energy vehicle drive motor controller are basically assembled one by one using separate parts. These parts are fixed with bolts, basically there is not much difference Integrated and modular design, the result of this design will cause the motor controller to be too large in size and low in power density. Therefore, with the continuous development of the electric vehicle industry, the requirements for the interior layout space of the vehicle are becoming more and more stringent, the volume requirements for the motor controller are also getting smaller and smaller, and the integration requireme...

AI Technical Summary

Problems solved by technology

[0003] The internal structure layout of the existing motor controller, usually the heat dissipation module is assembled one by one with separate parts, in which the IGBT and the film capacitor are connected to each other through bolts, and the heat dissipation water channel is integrated on the bottom of the controller box to provide IGBT and film capacitor dissipate heat, and the distributed arrangement of internal components has a large distribution volume, poor integration, and complex assembly process, which is difficult to meet the current requirements of integrated, modularized, miniaturized, and automated production of motor controllers. development needs

Images