Liquid Cooling Systems for Electronic Components

Abstract

A liquid cooling system (4) for electronic components (8) comprising: an exchanger plate (24) having a first wall (28) and a second wall (32), the first wall (28) being adapted to be The cooled electronic assembly (8) is at least partially in contact with the interface, while the second wall (32) is arranged in contact with the cooling liquid; a plurality of heat sink elements (40), which are associated with said second wall (32) and Heat dissipation takes place under the influence of a cooling fluid; wherein said heat sink element (40) is shaped according to a regular pattern (44) extending parallel to the main direction of extension (X-X) and comprising a plurality of rings ( 48), wherein each ring (48) comprises a continuous curved section (52) extending in a cantilevered manner from a first attachment end (56) to a second attachment end (60), the first attachment The end (56) and the second attachment end (60) are secured to the second wall (32). Advantageously, the continuous curvilinear section (52) is shaped such that the trajectories of the first plane (P1) and the second plane (P2) are perpendicular to the second wall (32) through said first end (56) and A second end (60), continuous curvilinear section (52) extends at least partially outside the space (S) defined between said vertical planes (P1, P2).

Description

Technical field [0001] The invention relates to a liquid cooling system suitable for electronic components. Background technique [0002] In the following, explicit reference will be made to applications in the automotive field without loss of generality; in fact, the present invention can be implemented for any type of electronic component provided with an associated cooling system. [0003] As we all know, the use of hybrid-powered road vehicles is increasing, which combines traditional internal combustion engine propulsion and related drives with more innovative electric propulsion and related drives. [0004] Electric drive requires the use of a reversible rotating electric machine, which can function as a motor by absorbing electric power and generating drive torque, and which can function as a generator, that is, absorbing mechanical energy and generating electric power. The motor is typically a three-phase synchronous motor with permanent magnets, mechanically connected or co...

AI Technical Summary

Problems solved by technology

[0005] Electronic power converters include electronic components that must be cooled sufficiently to avoid excessive overheating of the semiconductor materials contained within the electronic components, which would lead to rapid degradation

[0006] The cooling system must also be used as a thermostat to avoid as much as possible rapid and frequent temperature fluctuations due to the difference in thermal expansion coefficients between the metallic materials and semiconductors that make up the electronic components, and to avoid as much as possible mechanical fatigue due to thermal stress, This produces cracking and fatal fracture of electronic components and associated disruption of internal electrical connections

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