Novel motor controller main shell structure

Abstract

The invention discloses a novel motor controller main housing structure, which includes a controller housing, the controller housing is respectively the front side where the controller is placed and the back side where the capacitor core body is placed from the middle, and the front side is provided with an integral Die-cast heat dissipation water channel, the reverse side is pre-cast with a capacitor shell cavity, the capacitor core body and its outlet terminals are placed inside the capacitor shell cavity, and the cover plate is fixed on the outside of the capacitor core body by screws and sealant. on the shell. The invention fixes the capacitor core to the controller housing by injection molding, effectively reducing the temperature rise of the capacitor, increasing the capacitance value, and increasing the power density of the entire controller; through the structure of the invention, the IGBT cooling channel is integrated to improve the space utilization rate, and further Improve the power density of the entire controller; through the common shell of the capacitor shell and the controller shell, it saves the injection molded shell of the capacitor and reduces the cost of the controller.

Description

technical field [0001] The invention relates to a controller casing, in particular to a novel motor controller main casing structure. Background technique [0002] The main housing structure of the traditional motor controller is generally a box structure, with IGBT and capacitor installation and fixing holes inside the box, and IGBT split heat dissipation water channels on the housing, which need to be sealed by a cover plate to form a complete sealed heat dissipation water channel. The capacitor is an independent component, fixed with the main housing by screws, and the capacitor is installed inside the controller. [0003] At present, the controller structure capacitor adopts a separate plastic shell structure, which is fixed with the controller shell by screws, and the overall space utilization rate is not high; the current structural shell IGBT heat dissipation water channel is sealed by the cover plate to form a complete sealed water channel, and the cost is high; the ...

AI Technical Summary

Problems solved by technology

[0003] At present, the controller structure capacitor adopts a separate plastic shell structure, which is fixed with the controller shell by screws, and the overall space utilization rate is not high; the current structure shell IGBT heat dissipation water channel is sealed by the cover plate to form a complete sealed water channel, and the cost is high; the current capacitor They are all placed on the side of the IGBT. Due to the height of the capacitor itself, the height of the whole machine is relatively large.

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