Axially integrated electric vehicle motor control system

Abstract

The invention relates to an axially integrated electric vehicle motor control system, which comprises a driving motor and a motor controller, and is characterized in that the motor controller comprises a box body, and a power module, a control panel, a thin-film capacitor and the like which are arranged in the box body; the motor controller is arranged on the axial rear end face of the driving motor; the power module comprises a driving plate, an IGBT module and a heat dissipation bottom plate which are sequentially arranged from top to bottom, a heat dissipation cavity is formed in the heat dissipation bottom plate, the bottom of the heat dissipation cavity is provided with a liquid inlet hole and a liquid outlet hole which are formed along the two ends of a diagonal line, and the liquid inlet hole and the liquid outlet hole are connected with a first liquid inlet pipe and a first liquid outlet pipe which are arranged on the box body respectively. Compared with the prior art, the motor controller is installed in the axial direction of the driving motor, a connecting structure between the controller and a traditional separated structure of the motor is removed, the space occupation range of the driving control system in a whole vehicle is reduced, and the mass of the driving control system is reduced; and the design requirements of light weight, miniaturization and integration are met.

Description

technical field [0001] The invention relates to the field of electric vehicle drive control systems, in particular to an axially integrated electric vehicle motor control system. Background technique [0002] With the rapid development of new energy vehicles, related technologies are becoming more and more mature, and the interior space of vehicles is becoming more and more compact. Miniaturization, light weight and integration have become the mainstream direction of new energy vehicle development. As the core component of new energy vehicles, the drive motor control system has gradually revealed a series of disadvantages brought about by its traditional separate structure, such as large space volume, complicated wiring, low system reliability, and poor stability, and it is difficult to meet the needs of the development of the times. need. If the controller and the drive motor are combined into one, the space occupied by the drive control system in the vehicle can be effect...

AI Technical Summary

Problems solved by technology

However, due to the large size of the controller itself, the current general integration method is to integrate the controller directly above the drive motor, which cannot effectively reduce the size of the assembly, and still leads to a bulky structure and a complicated assembly structure; secondly, the controller and the drive The motor will generate a lot of heat during operation. Connecting the drive motor and the controller cooling system in series is not convenient for the two to dissipate heat in a timely and effective manner, and the coupled thermal field effect will reduce the performance of each other.

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