Liquid-cooled heat dissipating device

Abstract

The invention belongs to the field of heat dissipating devices, and provides a liquid-cooled heat dissipating device. The liquid-cooled heat dissipating device comprises a heat conducting plate used for being connected with a heat source and a copper plate, wherein a mounting groove is formed in the upper end of the heat conducting plate; and the copper plate is arranged in the mounting groove, the lower end of the copper plate is provided with a heating conducting surface which is attached to the inner end surface of the mounting groove tightly, a liquid inlet surface and a liquid outlet surface are arranged at the two ends of the copper plate correspondingly and both are oblique tangent surfaces, a plurality of micro channels used for circulating of coolants are arranged in the copper plate, one ends of the micro channels are cut into lotus-type liquid inlets by the liquid inlet surface, and the other ends of the micro channels are cut into lotus-type liquid outlets by the liquid outlet surfaces. Compared with the prior art, the liquid-cooled heat dissipating device has the advantages that the structure is simple, and the development and manufacturing cost is low; and the areas of the liquid inlets and the liquid outlets of the micro channels are increased, so that the volume of the coolants passing through the micro channels is increased, and the cooling effect is greatly improved.

Description

technical field [0001] The invention belongs to the field of heat dissipation devices and relates to a liquid cooling heat dissipation device. Background technique [0002] During the cooling and heat dissipation process of the traditional liquid-cooled heat sink, the motor pump drives the coolant in the heat sink, and the coolant brings the heat generated by the heat-generating device to the remote radiator for heat dissipation. At present, the commonly used liquid-cooling heat dissipation device is a channel-type heat dissipation device. In order to further improve the heat dissipation capacity, the size of the liquid-cooling channel is continuously reduced. When the diameter of the channel is less than 1mm, it is called a micro-channel. The micro-channel liquid cooling device has the advantages of strong heat dissipation capacity and compact structure. However, the pressure difference between the inlet and outlet of the cooling liquid flowing through the micro-channel str...

AI Technical Summary

Problems solved by technology

This is the current method used by micro-channel liquid cooling devices, but under the limited space and voltage conditions, the motor drive power has an upper limit value, and the heat dissipation capacity cannot be further improved after reaching a certain value, and the power consumption increases.

Method 2: Improve the coolant formula and improve the flow performance of the cutting fluid. This method is more complicated and the research and development costs are high. Both methods have obvious defects.

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