Electric vehicle controller based on single-tube parallel connection

Abstract

The invention relates to an electric vehicle controller based on single-tube parallel connection. The electric vehicle controller comprises a box body and a box cover; a thin-film capacitor, a magnetic ring assembly, a current sensor assembly, a composite busbar and a PCBA control panel are arranged in the box body; and the thin-film capacitor is connected with the composite busbar; a single-tube heat dissipation assembly and a three-phase plastic-coated polar plate are also arranged in the box body; the single-tube heat dissipation assembly comprises a radiator and a single-tube IGBT (Insulated Gate Bipolar Translator) and a temperature sensor which are arranged on the radiator; the single-tube IGBT is respectively connected with the thin-film capacitor and the PCBA control panel; the input end of the three-phase plastic-coated polar plate is electrically connected with the three-phase output end of the composite busbar, and the output end of the three-phase plastic-coated polar plate extends out of the box body and is electrically connected with the three-phase input end in the motor. Compared with the prior art, the single-tube IGBTs are adopted, so that a complex packaging process is avoided; the single-tube IGBTs are clamped on the two sides of the radiator for heat dissipation, so that the heat dissipation requirement of the controller can be well met; and the controller has the advantages of being high in integration, low in inductance, low in cost and high in vibration resistance.

Description

technical field [0001] The invention relates to the field of single-tube controllers, in particular to an electric vehicle controller based on single-tube parallel connection. Background technique [0002] With the continuous development of electric vehicles, the requirements for the cost and volume of drive motor controllers are getting higher and higher, and it is at this time that single-tube controllers are gradually adopted by most manufacturers. The single-tube controller is a motor controller for electric vehicles that directly uses a single-tube IGBT instead of a traditional packaging module. Great power density. The traditional motor controller uses a whole integrated packaged power module. This kind of power module has a wide range of applications, relatively stable output, but is expensive, and the packaging volume is large, the process is relatively complicated, and the vibration resistance is poor. The cost of the module itself is also high, which cannot meet ...

AI Technical Summary

Problems solved by technology

The traditional motor controller uses a whole integrated packaged power module. This kind of power module has a wide range of applications, relatively stable output, but is expensive, and the packaging volume is large, the process is relatively complicated, and the vibration resistance is poor. The cost of the module itself is also high, which cannot meet the requirements of the OEM for the cost of the motor controller

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