shunt and its liquid cooling heat dissipation device

Abstract

A liquid cooling heat dissipation device includes a base, a distributor, and a top cover. One side of the base contacts at least one hot spot, and the other side has a plurality of fins forming a plurality of liquid cooling channels. The distributor has a top surface and a bottom surface. The top surface has at least one first liquid inlet channel and one second liquid inlet channel, which extend from the top surface to the bottom surface and penetrate it. The bottom surface is disposed on the fins of the base, allowing the first and second liquid inlet channels to correspond to at least one high-temperature point and at least one low-temperature point of the hot spot, respectively. The top cover is disposed on the distributor and together with the base forms a liquid cooling heat dissipation device. By utilizing the distributor's diversion effect, the cooling fluid can be diverted and sprayed onto the high and low temperature points of the hot spot for cooling, giving the liquid cooling heat dissipation device characteristics such as low flow resistance and low pressure difference.

Claims

1. A flow divider for mounting on a base having a plurality of fins forming a plurality of liquid-cooled flow channels between each other, the base being for contacting at least one hot spot, the flow divider comprising: a flow divider having a top surface and a bottom surface opposite the top surface, the top surface having at least one first liquid inlet channel and at least one second liquid inlet channel, the first liquid inlet channel and the second liquid inlet channel extending from the top surface to the bottom surface and penetrating the bottom surface, the flow divider being mounted on the base such that the first liquid inlet channel and the second liquid inlet channel are respectively positioned to form a flow divider corresponding to at least one high-temperature point and at least one low-temperature point of the hot spot, wherein the flow rate of cooling fluid supplied to the high-temperature point is greater than the flow rate to the low-temperature point.

2. The diverter as claimed in claim 1, wherein the opening of the first liquid inlet channel on the top surface is larger than the opening of the first liquid inlet channel on the bottom surface.

3. The diverter as claimed in claim 1, wherein the opening of the first liquid inlet channel on the top surface is larger than the opening of the second liquid inlet channel on the top surface and / or the opening of the first liquid inlet channel on the bottom surface is larger than the opening of the second liquid inlet channel on the bottom surface.

4. The diverter as claimed in claim 1, wherein the top surface has at least one first liquid outlet channel and at least one second liquid outlet channel, the first liquid outlet channel and the second liquid outlet channel extending from the top surface to the bottom surface and penetrating the bottom surface.

5. The diverter as claimed in claim 4, wherein the opening of the first outlet channel on the top surface is larger than the opening of the first outlet channel on the bottom surface.

6. The distributor as claimed in claim 1, wherein the bottom surface has at least one first inlet groove communicating with the first liquid inlet channel and at least one second liquid inlet groove communicating with the second liquid inlet channel, the bottom surface being for contacting the tops of the fins, the openings of the first liquid inlet groove and the first liquid inlet channel on the bottom surface and the openings of the second liquid inlet groove and the second liquid inlet channel on the bottom surface respectively spanning the tops of the fins to communicate with the liquid cooling channels.

7. The distributor as claimed in claim 4, wherein the bottom surface has at least one first outlet groove communicating with the first outlet channel, the bottom surface being for contacting the tops of the fins, and the openings of the first outlet groove and the first outlet channel on the bottom surface respectively spanning the tops of the fins to communicate with the liquid cooling channels.

8. The shunt as claimed in claim 1, wherein the bottom surface is a plane flush with the top of the fins.

9. The distributor as claimed in claim 4, wherein the distributor includes a plurality of first inlet channels and a plurality of second inlet channels, and a plurality of first outlet channels and a plurality of second outlet channels, wherein the openings of the first inlet channels and the plurality of second inlet channels on the top surface and the openings of the plurality of first outlet channels and the plurality of second outlet channels on the top surface are arranged in an alternating manner.

10. The distributor as claimed in claim 4, wherein the distributor includes a plurality of first inlet channels and a plurality of second inlet channels, and a plurality of first outlet channels and a plurality of second outlet channels, wherein the openings of the first inlet channels and the plurality of second inlet channels on the bottom surface and the openings of the plurality of first outlet channels and the plurality of second outlet channels on the bottom surface are arranged in an alternating manner.

11. The distributor as claimed in claim 4, wherein the distributor includes a base and at least one cover disposed on the base, the base having a top surface and a bottom surface, the top surface having the first liquid outlet channel, the first liquid outlet channel having at least one covering area, and the cover disposed on the covering area.

12. A liquid cooling heat dissipation device, comprising: a base having a body and a plurality of fins, the body having a heat-absorbing side and a heat-conducting side opposite to the heat-absorbing side, the fins being disposed on the heat-conducting side and the fins forming a plurality of liquid cooling channels with respect to each other; A distributor, disposed on the base, includes a distributor having a top surface and a bottom surface opposite the top surface. The top surface has at least one first liquid inlet channel and at least one second liquid inlet channel, the first liquid inlet channel and the second liquid inlet channel extending from the top surface to the bottom surface and penetrating the bottom surface. The distributor is disposed on the base such that the first liquid inlet channel and the second liquid inlet channel are respectively positioned corresponding to at least one high temperature point and at least one low temperature point of the contact hot spot of the base. A top cover is disposed on the distributor and defines an inlet chamber and an outlet chamber communicating with the first liquid inlet channel and the second liquid inlet channel. The top cover also has an inlet portion communicating with the inlet chamber and an outlet portion communicating with the outlet chamber.

13. The liquid cooling heat dissipation device as claimed in claim 12, wherein the opening of the first liquid inlet channel on the top surface is larger than the opening of the first liquid inlet channel on the bottom surface.

14. The liquid cooling heat dissipation device as claimed in claim 12, wherein the opening of the first liquid inlet channel on the top surface is larger than the opening of the second liquid inlet channel on the top surface and / or the opening of the first liquid inlet channel on the bottom surface is larger than the opening of the second liquid inlet channel on the bottom surface.

15. The liquid cooling heat dissipation device as claimed in claim 12, wherein the top surface has at least one first liquid outlet channel and at least one second liquid outlet channel, the first liquid outlet channel and the second liquid outlet channel extending from the top surface to the bottom surface and penetrating the bottom surface.

16. The liquid cooling heat dissipation device as claimed in claim 12, wherein the bottom surface has at least one first liquid inlet groove communicating with the first liquid inlet channel and at least one second liquid inlet groove communicating with the second liquid inlet channel, the bottom surface being for contacting the tops of the fins, the openings of the first liquid inlet groove and the first liquid inlet channel on the bottom surface and the openings of the second liquid inlet groove and the second liquid inlet channel on the bottom surface respectively spanning the tops of the fins to communicate with the liquid cooling channels.

17. The liquid cooling heat dissipation device as claimed in claim 15, wherein the bottom surface has at least one first liquid outlet groove communicating with the first liquid outlet channel, the bottom surface being for contacting the tops of the fins, and the openings of the first liquid outlet groove and the first liquid outlet channel on the bottom surface respectively spanning the tops of the fins to communicate with the liquid cooling channels.

18. The liquid cooling heat dissipation device as claimed in claim 12, wherein the bottom surface is a plane flush with the top of the fins.

19. The liquid cooling heat dissipation device as claimed in claim 15, wherein the fluid distributor includes a plurality of first liquid inlet channels and a plurality of second liquid inlet channels, and a plurality of first liquid outlet channels and a plurality of second liquid outlet channels, wherein the openings of the first liquid inlet channels and the plurality of second liquid inlet channels on the top surface and the openings of the plurality of first liquid outlet channels and the plurality of second liquid outlet channels on the top surface are arranged in an alternating manner.

20. The liquid cooling heat dissipation device as claimed in claim 15, wherein the fluid distribution includes a base and at least one cover disposed on the base, the base having a top surface and a bottom surface, the top surface having the first liquid outlet channel, the first liquid outlet channel having at least one covering area, and the cover disposed on the covering area.

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