# US 12,024,360 B2 · Anti-sloshing device for immersion cooling apparatus

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- Number: US 12,024,360 B2
- Document ID: US12024360B2
- Status: Granted
- Kind: B2
- Application number: 17/141,411
- Filed: 2021-01-05
- Published: 2021-07-08
- Granted: 2024-07-02
- Earliest claimed: 2020-01-08
- Assignees: Liquidstack Holding B.V.
- Applicants: LiquidStack Holding B.V.
- Inventors: Kar-Wing Lau
- Web page: https://patentgrep.com/patent/US12024360B2

## CPC

- B65D 90/52: Anti-slosh devices (vehicle fuel tanks with means modifying or controlling distribution or motion of fuel, e.g. to prevent noise, surge, splash or fuel starvation B60K15/077)
- H05K 7/203: {by immersion}
- H05K 7/20236: {by immersion}
- H05K 7/20272: {Accessories for moving fluid, for expanding fluid, for connecting fluid conduits, for distributing fluid, for removing gas or for preventing leakage, e.g. pumps, tanks or manifolds}
- H05K 7/20327: {Accessories for moving fluid, for connecting fluid conduits, for distributing fluid or for preventing leakage, e.g. pumps, tanks or manifolds}
- H05K 7/20781: {within cabinets for removing heat from server blades}
- H05K 7/20818: {within cabinets for removing heat from server blades}
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS

## Abstract

An immersion cooling system for cooling an object in an immersion cooling tank including an anti-sloshing device adapted to be attached to or attachable to (e.g., an inner surface of) the immersion cooling tank, the device including a connecting device(s), a first plate fixedly attached to or rotatably attached to the connecting device, and a second plate rotatably attached to the connecting device.

## Claims

### Claim 1

An immersion cooling system comprising:
an immersion cooling tank having an interior volume to contain a heat transfer fluid;
an anti-sloshing device attached to the immersion cooling tank, the anti-sloshing device comprising:
a hinge attached to a sidewall of the immersion cooling tank;
a first plate having a first end and a second end opposite the first end, the first end of the first plate being fixedly or rotatably attached to the hinge, and the second end of the first plate extending into and partially across the interior volume of the immersion cooling tank; and
a second plate having a first end and a second end opposite the first end, the first end of the second plate being rotatably attached to the hinge, and the second end of the second plate extending into and partially across the interior volume of the immersion cooling tank,
wherein a plurality of openings are formed through at least one of the first plate and the second plate.

### Claim 2 (depends on 1)

The system of claim 1, wherein the plurality of openings include a shape that is selected from the group consisting of circular, substantially circular, elliptical, oval, rectangular, rounded rectangular, square, and combinations thereof.

### Claim 3 (depends on 1)

The system of claim 1 further comprising a curved portion attached to or formed by at least one of the first plate or the second plate.

### Claim 4 (depends on 3)

The system of claim 3, wherein each of the first plate and the second plate is attached to the hinge at a respective proximal end and the curved portion is disposed at a respective distal end of the first plate or the second plate.

### Claim 5 (depends on 1)

The system of claim 1, wherein the second plate is rotatable and further adapted to contact the first plate when an external force is applied to the second plate.

### Claim 6 (depends on 5)

The system of claim 5, wherein the second plate is adapted to contact the first plate when the external force applied exceeds a threshold.

### Claim 7 (depends on 1)

The system of claim 1 further comprising a stopping device to limit rotation of the second plate.

### Claim 8 (depends on 1)

The system of claim 1, wherein the anti-sloshing device comprises a plurality of devices, each device comprising at least one hinge, a first plate, and a second plate, the plurality of devices attached to respective portions of the immersion cooling tank.

### Claim 9

An immersion cooling tank having an inner surface and adapted to contain a heat transfer fluid for cooling an IT component, the immersion cooling tank comprising:
an anti-sloshing device attached to a portion of the immersion cooling tank, the device comprising:
a connecting device attached to a sidewall of the immersion cooling tank;
a first plate having a first end and a second end opposite the first end, the first end of the first plate being fixedly or rotatably attached to the hinge, and the second end of the first plate extending into and partially across the interior volume of the immersion cooling tank, the first plate being oriented parallel or substantially parallel to a surface level of the heat transfer fluid; and
a second plate having a first end and a second end opposite the first end, the first end of the second plate being rotatably attached to the hinge, and the second end of the second plate extending into and partially across the interior volume of the immersion cooling tank,
wherein the first plate is mounted above the surface level of the heat transfer fluid.

### Claim 10 (depends on 9)

The immersion cooling tank of claim 9, wherein a plurality of openings are formed through at least one of the first plate or the second plate.

### Claim 11 (depends on 10)

The immersion cooling tank of claim 10, wherein the openings include a shape that is selected from the group consisting of circular, substantially circular, elliptical, oval, rectangular, rounded rectangular, square, and combinations thereof.

### Claim 12 (depends on 9)

The immersion cooling tank of claim 9 further comprising a curved portion attached to or formed by at least one of the first plate or the second plate.

### Claim 13 (depends on 12)

The immersion cooling tank of claim 12, wherein each of the first plate and the second plate is attached to the connecting device at a respective proximal end and the curved portion is disposed at a respective distal end of the first plate or the second plate.

### Claim 14 (depends on 9)

The immersion cooling tank of claim 9, wherein the second plate is rotatable and further adapted to contact the first plate when an external force is applied to the second plate.

### Claim 15 (depends on 14)

The immersion cooling tank of claim 14, wherein the second plate is adapted to contact the first plate when the external force applied exceeds a threshold.

### Claim 16 (depends on 9)

The immersion cooling tank of claim 9 further comprising a stopping device to limit rotation of at least the first plate.

### Claim 17 (depends on 9)

The immersion cooling tank of claim 9, wherein the anti-sloshing device comprises a plurality of devices, each device comprising at least one connecting device, a first plate, and a second plate, the plurality of devices attached to respective portions of the immersion cooling tank.

### Claim 18

A method of minimizing sloshing of a heat transfer fluid in an immersion cooling tank, the method comprising:
attaching an anti-sloshing device to a portion of an inner surface of the immersion cooling tank, the device comprising:
a hinge attached to a sidewall of the immersion cooling tank;
a first plate having a first end and a second end opposite the first end, the first end of the first plate being fixedly or rotatably attached to the hinge, and the second end of the first plate extending into and partially across the interior volume of the immersion cooling tank; and
a second plate having a first end and a second end opposite the first end, the first end of the second plate being rotatably attached to the hinge, and the second end of the second plate extending into and partially across the interior volume of the immersion cooling tank, the second plate being adapted to conjoin with the first plate when a force applied to the second plate exceeds a certain threshold; and filling the immersion cooling tank with heat transfer fluid to a predetermined level.

### Claim 19 (depends on 18)

The method of claim 18, wherein the predetermined level is at or below the attached anti-sloshing device.
