Motor controller

Abstract

The invention relates to the technical field of motor controllers and in particular relates to a motor controller. The motor controller comprises a controller shell, wherein a thin-film capacitor component, an IGBT (Insulated Gate Bipolar Translator) component and a direct-current busbar are arranged in the controller shell; a cooling bottom plate is arranged at the bottom of the controller shell;a capacitor cooling chamber, an IGBT cooling chamber and a busbar cooling chamber are formed in the cooling bottom plate; the capacitor cooling chamber and the busbar cooling chamber respectively correspond to the positions of the thin-film capacitor component and the direct-current busbar isolated above the cooling chambers one by one; the bottom of the IGBT component is correspondingly insertedinto the IGBT component cooling chamber. According to the motor controller disclosed by the invention, the controller shell is designed and produced by adopting a high-pressure aluminum alloy castingprocess, and the motor controller is light in weight, compact in structure and high in power density; the bottom of the shell adopts a full water cooling design, the heat exchange area is enlarged, and the heat exchange efficiency is improved; a universal water pipe joint with an adjustable position is arranged on the controller shell, so that the cost of development is reduced, and the adaptability of the product is improved.

Description

technical field [0001] The invention relates to the technical field of motor controllers, in particular to a motor controller. Background technique [0002] As one of the core three "electricity" of new energy vehicles, the motor controller assembly is one of the core technologies that every OEM must master. The rapid development of new energy vehicles has also created a huge motor demand market. Technology is also developing rapidly, and the core technology is also developing in the direction of permanent magnetization of the motor body, digitalization of motor control, and integration of motor systems. [0003] The development of motor drive technology, the development and optimization of drive hardware, and the establishment of a platform to deepen and upgrade software algorithms have become a top priority. Facing the harsh and fierce market and the technological environment where hundreds of schools of thought contend, improve the quality of vehicle technology, improve t...

AI Technical Summary

Problems solved by technology

[0004] The existing drive motor controller has the following disadvantages: 1. The installation space of the electrical components in the drive housing is insufficient, the overall heat dissipation effect is poor, and the service life is low; 2. The heat dissipation area of ​​the DC busbar is insufficient, and the heat dissipation conduction efficiency is low; 3. Common mode inductors generally adopt a split structure, and the filtering effect is significantly reduced; 4. The electromagnetic radiation interference between electrical components is serious; 5. Electrical connectors are generally fixed on the shell, and the adaptability of the product is poor

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