Modular liquid cooling architecture for liquid cooling

Patent metadata

Field	Value
Publication number	US-12174676-B2
Application number	US-202117532147-A
Country	US
Kind code	B2
Filing date	Nov 22, 2021
Priority date	Nov 22, 2021
Publication date	Dec 24, 2024
Grant date	Dec 24, 2024

Abstract

A heat exchanger includes a first manifold having an inlet opening and a second manifold having an outlet opening. A group of conduits fluidly connect the first manifold and the second manifold to one another such that a flow path is established for liquid to flow from the inlet opening to the outlet opening. The flow path includes a select portion that extends through all conduits within the group of conduits. Valves are located in the first manifold and the second manifold. The valves are operable to change the select portion of the flow path from between a first state, wherein the conduits within group of conduits are fluidly connected in parallel with one another, and a second state, wherein the conduits within the group of conduits are fluidly connected in series with one another.

First claim

The invention claimed is:

1. A heat exchanger comprising:
a first manifold having an inlet opening;
a second manifold having an outlet opening;
a group of conduits fluidly connecting the first manifold and the second manifold to one another such that a flow path is established for liquid to flow from the inlet opening to the outlet opening, the flow path including a select portion that extends through all conduits within the group of conduits; and
valves located in the first manifold and the second manifold, the valves being operable to change the select portion of the flow path from between a first state, wherein the conduits within group of conduits are fluidly connected in parallel with one another, and a second state, wherein each of the conduits within the group of conduits is fluidly connected in series with an adjacent one of the group of conduits.

2. The heat exchanger of claim 1 , wherein the group of conduits is a first group of conduits and the select portion is a first select portion and further comprising a second group of conduits fluidly connecting the first manifold and the second manifold to one another such that a second select portion of the flow path between the inlet opening and the outlet opening extends through all conduits within the second group of conduits, and wherein the valves are operable to change the first select portion of the flow path between the first state and the second state without changing the second select portion of the flow path.

3. The heat exchanger of claim 2 , wherein the valves are operable to change the second select portion of the flow path between a first state, wherein the conduits within the second group of conduits are connected in parallel with one another, and a second state, wherein the conduits within the second group of conduits are connected in series with one another, without changing the first select portion of the flow path.

4. The heat exchanger of claim 2 , comprising an independent conduit fluidly connecting the first manifold and the second manifold in parallel with the first group of conduits and the second group of conduits.

5. The heat exchanger of claim 2 , wherein:
the first select portion and second select portion are in parallel with one another when the first select portion is in the first state; and
the second select portion follows the first select portion in series when the first select portion is in the second state.

6. The heat exchanger of claim 2 , wherein every conduit within the first group of conduits is fluidly connected to a portion of the first manifold nearer to the inlet opening than a portion of the first inlet manifold to which every conduit in the second group of conduits is connected.

7. The heat exchanger of claim 2 , wherein:
the first select portion and the second select portion are in parallel with one another when the first select portion is in the first state and when the first select portion is in the second state.

8. The heat exchanger of claim 2 , wherein every conduit within the first group of conduits is fluidly connected to a portion of the first manifold on an opposite side of the inlet opening from a portion of the first inlet manifold to which every conduit in the second group of conduits is connected.

9. The heat exchanger of claim 2 , wherein the inlet opening is a first inlet opening and comprising:
a third manifold having a second inlet opening; and
a third group of conduits fluidly connecting the third manifold to the second manifold.

10. The heat exchanger of claim 2 , wherein the outlet opening is a first outlet opening and comprising:
a third manifold having a second outlet opening; and
a third group of conduits fluidly connecting the first manifold to the third manifold.

11. The heat exchanger of claim 1 , wherein:
the group of conduits comprises:
a first conduit fluidly connected to the first manifold at a first point and fluidly connected to the second inlet manifold at a second point;
a second conduit fluidly connected to the first manifold at a third point and fluidly connected to the second inlet manifold at a fourth point; and
a third conduit fluidly connected to the first manifold at a fifth point and fluidly connected to the second inlet manifold at a sixth point, the third point being between the first and fifth points and the fourth point being between the second and sixth point; and

wherein the valves comprise:
a first valve operable to open and close fluid connection between the first and third points; and
a second valve operable to open and close fluid connection between the fourth and sixth points.

12. The heat exchanger of claim 11 , wherein:
the group of conduits further comprises a fourth conduit fluidly connected to the first manifold at a seventh point and fluidly connected to the second manifold at an eighth point, the fifth point being between the third and seventh points and the sixth point being between the fourth and eighth points; and
the valves further comprise a third valve operable to open and close fluid connection between the fifth and seventh points.

13. The heat exchanger of claim 12 , wherein:
the group of conduits further comprises a fifth conduit fluidly connected to the first manifold at a ninth point and fluidly connected to the second manifold at a tenth point, the seventh point being between the fifth and ninth points and the eighth point being between the sixth and tenth points; and
the valves further comprise a fourth valve operable to open and close fluid connection between the eighth and tenth points.

14. The heat exchanger of claim 1 , wherein the valves are operable to change the select portion of the flow path to a third state wherein at least one conduit within the group of conduits is fluidly connected in parallel with at least one other conduit within the group of conduits and at least one conduit within the group of conduits is fluidly connected in series with at least one other conduit within the group of conduits.

Assignees

• Google Llc

Inventors

• Chiu Jerry
• Khiabani Reza H
• Wei Xiaojin
• Iyengar Madhusudan K

Classifications

• G06F2200/201

  Cooling arrangements using cooling fluid · CPC title

• F28F2250/108

  with combined cross flow and parallel flow · CPC title

• F28F2210/02

  with particular branching, e.g. fractal conduit arrangements · CPC title

• F28F1/00

  Tubular elements; Assemblies of tubular elements (specially adapted for movement F28F5/00) · CPC title

• F28F27/02

  for controlling the distribution of heat-exchange media between different channels ({static flow control means in header boxes F28F9/026}; arrangements of guide plates or guide vanes F28F9/22, F28F25/12) · CPC title