Symmetrical H-shaped micro-channel liquid cooling plate

Abstract

The invention discloses a symmetrical H-shaped micro-channel liquid cooling plate, which comprises a metal substrate and a metal cover plate, and is characterized in that the metal substrate is provided with a groove, and the metal substrate with the groove is connected with the metal cover plate in a sealing manner to form the liquid cooling plate; the groove in the metal substrate and the fitting surface of the metal cover plate jointly form a micro-channel; the sections of the micro-channels are rectangular; the liquid cooling plate further comprises a first inlet section, a second inlet section, an inlet manifold, an outlet manifold, a first outlet section and a second outlet section. A first inlet section and a second inlet section on one side of the liquid cooling plate are connectedwith an inlet manifold, the inlet manifold is connected with an outlet manifold through parallel micro-channels, and a first outlet section and a second outlet section on the other side of the liquidcooling plate are connected with the outlet manifold; the width of the outlet manifold is greater than or equal to that of the inlet manifold; and the widths of the side widths of the liquid coolingplates are equal. The symmetrical H-shaped micro-channel liquid cooling plate provided by the invention has the advantages of simple structure, uniform flow in the parallel micro-channels, good heat exchange performance, low pressure drop and the like.

Description

technical field [0001] The invention relates to the field of heat dissipation of power battery packs in electric vehicles, in particular to a symmetrical H-shaped microchannel liquid cooling plate. Background technique [0002] In recent years, with the rapid development of the global economy, problems such as energy crisis and environmental pollution have become increasingly prominent, people's awareness of environmental protection has gradually increased, the government has paid more and more attention to the use of clean energy by enterprises, and the development of the new energy electric vehicle industry has received widespread attention. Batteries are the core components of electric vehicles, which are greatly affected by temperature, and batteries working at harsh temperatures may even cause safety accidents. The battery thermal management system is an important system to ensure the safe and reliable operation of electric vehicles. Its function is to control the batte...

AI Technical Summary

Problems solved by technology

[0004] However, the traditional liquid cold plate has the following defects: 1. Most of the traditional liquid cold plates have a single-inlet and single-outlet structure, and the total length of the flow channel is long, resulting in large fluid resistance along the way, and there are many corner structures inside the liquid cold plate. The local pressure drop is increased, so that the total pressure drop of the liquid cold plate is larger; 2. The total length of the traditional liquid cold plate flow channel is longer, and the temperature rise of the coolant along the way is larger, so that the inlet temperature of the coolant is lower and the heat exchange effect is good. , so that the outlet temperature of the coolant is higher and the heat transfer effect is poor

The temperature difference between the inlet and the outlet of the liquid cold plate is large, and the temperature uniformity effect is poor; 3. The flow distribution in each flow channel of the traditional liquid cold plate is relatively uneven, and the temperature consistency of the liquid cold plate is poor; 4. The traditional liquid cold plate is in the thickness direction The upper size is larger, the volume and weight of the liquid cold plate are large, and the applicability is small

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