Structure of heat sink and manufacturing method

Abstract

This invention discloses a radiating device, which can be a uniform heat cavity combined with any heating components. The device includes a closed cavity and a capillary structure formed on the inside wall of said cavity, in which, said capillary structure includes multiple grooves formed on the inside wall of the cavity and porous powder sintered under high temperature on the inside wall , thus the radiating device has good capillary force of sintered capillary structure and penetrability of groove structure to speed up the radiation backflow of the working liquid and increase the radiation efficiency of the device.

Description

technical field [0001] The invention relates to a structure of a heat dissipation device and a manufacturing method thereof, in particular to a heat dissipation device with high capillary force and high permeability and a manufacturing method thereof. Background technique [0002] With the advancement of technology, the number of electronic components per unit area of ​​electronic equipment is increasing, which causes the heat generated by the electronic equipment to increase accordingly. Therefore, in order to maintain the electronic equipment at an effective working temperature, most of the current methods use external fans and heat dissipation fins to achieve heat dissipation. [0003] Since the heat pipe can transmit a large amount of heat over a considerable distance with a small cross-sectional area and temperature difference, and can operate without an external power supply, under the consideration of no need to provide power and economical use of space , the heat pi...

AI Technical Summary

Problems solved by technology

Although this type of grooved capillary structure 15 has better permeability, its capillary force is not as good as that of the sintered capillary structure 13. For a long time, this defect has troubled manufacturers, developers and users

After the stamping is completed, the excess side gap 16 around the plate 11 needs to be cut off with the help of a cutting tool. In this way, the cost of materials for making the heat uniform temperature cavity 10 is also greatly increased.

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