Novel motor controller main shell structure

Abstract

The invention discloses a novel motor controller main shell structure. The novel motor controller main shell structure comprises a controller shell, the middle of the controller shell is divided intoa front side for placing a controller and a reverse side for placing a capacitor core body, a cooling water channel which is formed through integrated die-casting is formed in the front side, a capacitor shell cavity is precast in the reverse side, the capacitor core body and a wire outlet terminal of the capacitor core body are placed inside the capacitor shell cavity, and a cover plate is fixedto the portion, at the outer side of the capacitor core body, of the controller shell through bolts and sealant. By means of the novel motor controller main shell structure, through injection molding,the capacitor core is fixed to the controller shell, the temperature rise of a capacitor is effectively lowered, the capacitor capacity is effectively increased, and the power density of the whole controller is increased. By the adoption of the structure, the IGBT cooling water channel is integrated, the space utilization rate is increased, and then the power density of the whole controller is increased; through the shared shell of the capacitor shell and the controller shell, a capacitor inject molding shell is omitted, and the controller cost is lowered at the same time.

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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