A liquid cooling radiator and a motor controller

Abstract

The invention discloses a liquid cooling radiator and a motor controller. In the liquid cooling radiator, a first flow channel area and a second flow channel area are separated by a first baffle plateand communicated with each other through a first flow channel opening and a first opening; the second flow channel area and a third flow channel area are separated by a second baffle plate and communicated with each other through a second flow channel opening and a second opening; a plurality of first heat dissipation fin columns are arranged in the first flow channel area; a plurality of secondheat dissipation fin columns are arranged in the second flow channel area; a plurality of third heat dissipation fin columns are arranged in the third flow channel area; and the heights of the first heat dissipation fin columns, the second heat dissipation fin columns and the third heat dissipation fin columns are sequentially increased. According to the liquid cooling radiator, through the radiating fin columns with the heights in different areas increased in sequence and the series-parallel connection type radiating flow channel structure, the temperature components of cooling liquid flowingthrough heat sources in different areas can be uniform, and the uniformity of the junction temperature of a power module is effectively improved.

Description

technical field [0001] The invention relates to the technical field of electric vehicles, in particular to a liquid cooling radiator and a motor controller provided with the liquid cooling radiator. Background technique [0002] The liquid cooling radiator in the prior art generally adopts an S-type series water channel heat dissipation structure, which can be found in figure 1 . [0003] The liquid cooling radiator includes a base plate and the outer surface of the base plate has at least one installation position group, each installation position group includes at least two installation positions for fixing the power module; there is at least one cooling liquid channel in the base plate, and each cooling liquid channel Located below a mounting position group; each coolant channel includes a first cooling segment and a second cooling segment, and the first cooling segment and the second cooling segment respectively pass through the bottom of all mounting positions of a mou...

AI Technical Summary

Problems solved by technology

[0004] The projected area of ​​the radiator in this solution is much larger than the projected area of ​​the power module that needs heat dissipation, and the radiator is too large, which is not conducive to the light weight and miniaturization of the radiator and the motor controller

Moreover, its series water channel structure makes the junction temperature of the power module higher and the temperature distribution is uneven

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