# US 11,445,641 B1 · Advanced fluid connection design for multiple phase system

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- Number: US 11,445,641 B1
- Document ID: US11445641B1
- Status: Granted
- Kind: B1
- Application number: 17/182,564
- Filed: 2021-02-23
- Published: 2022-08-25
- Granted: 2022-09-13
- Earliest claimed: 2021-02-23
- Assignees: Baidu USA LLC
- Applicants: Baidu USA LLC
- Inventors: Tianyi Gao
- Web page: https://patentgrep.com/patent/US11445641B1

## CPC

- H05K 7/20781: {within cabinets for removing heat from server blades}
- H05K 7/20818: {within cabinets for removing heat from server blades}
- 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 7/20509: {Multiple-component heat spreaders; Multi-component heat-conducting support plates; Multi-component non-closed heat-conducting structures}
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS

## Abstract

A cooling arrangement for an electronic rack of a data center having a rack manifold with liquid supply line to receive first cooling liquid from a cooling liquid source and liquid return line to return first warmer liquid back to the cooling liquid source. A plurality of server chassis are arranged in a stack, each server chassis including one or more fluid cooling devices associated with one or more information technology (IT) components. A plurality of connector modules are attached to the servers, each providing fluid connections between the fluid cooling devices and the cooling liquid source on the racks; wherein each of the connector module comprises a frame having mounts configured for attaching the frame onto the server a plurality of channels formed in the frame to accept the fluid connectors; and, a plurality of fluid connectors slidably mounted in the channels.

## Claims

### Claim 1

A connector module for an electronic rack, comprising:
a frame having mounts configured for attaching the frame onto the electronic rack;
a plurality of channels formed in the frame to accept fluid connectors; and
a plurality of fluid connectors slidably mounted in the channels; and,
wherein each of the fluid connectors further comprises a locking mechanism affixing the fluid connector in a fixed location within the channel.

### Claim 2 (depends on 1)

The module of claim 1, further comprising an interconnector attached to at least two fluid connectors thereby maintaining fixed spatial orientation between the two fluid connectors.

### Claim 3 (depends on 1)

The module of claim 1, wherein the locking mechanism comprises tight fit of the fluid connector within a channel imparting motion resistance of the fluid connector within a channel preventing free slide.

### Claim 4 (depends on 1)

The module of claim 1, wherein the locking mechanism comprises arms extending from the fluid connector and engaging teeth within the channel.

### Claim 5 (depends on 1)

The module of claim 1, wherein the frame further comprises a plurality of locators positioned at preset locations and configured for locking the fluid connectors at the preset locations.

### Claim 6 (depends on 1)

The module of claim 1 wherein each of the fluid connectors comprises an interconnect kit configured for interconnecting each of the fluid connector to another fluid connector to maintain fixed spatial orientation.

### Claim 7

An electronic rack of a data center, comprising:
a rack manifold having a rack liquid supply line to receive first cooling liquid from a cooling liquid source and a rack liquid return line to return first warmer liquid back to the cooling liquid source;
a plurality of server chassis arranged in a stack, each server chassis including one or more fluid cooling devices associated with one or more information technology (IT) components; and
a plurality of connector modules attached to the electronic rack, each providing fluid connections between the fluid cooling devices and the cooling liquid source; wherein each of the connector module comprises:
a frame having mounts configured for attaching the frame onto the electronic rack,
a plurality of channels formed in the frame to accept the fluid connectors, and
a plurality of fluid connectors slidably mounted in the channels; and
a plurality of interconnectors, each attached to at least two fluid connectors thereby maintaining fixed spatial orientation between the two fluid connectors.

### Claim 8 (depends on 7)

The electronic rack of claim 7, wherein the fluid cooling devices are selected from cooling plates and condensers.

### Claim 9 (depends on 7)

The electronic rack of claim 7, wherein at least one of the fluid cooling device comprises a riser gas line and a liquid return line, and wherein the riser gas line is connected to a connector mounted on a first connector module and the liquid return line is connected to a connector mounted on a second connector module, wherein the first connector module is mounted vertically higher than the second connector module.

### Claim 10 (depends on 7)

The electronic rack of claim 7, wherein at least one of the fluid cooling devices comprises a hot liquid line and a cold liquid line, and wherein the hot liquid line is connected to a first connector mounted on a first channel and the cold liquid line is connected to a second connector mounted on a second channel, wherein the first connector is mounted at same vertical height as the second connector.

### Claim 11 (depends on 7)

The electronic rack of claim 7, wherein the plurality of fluid connectors comprises a plurality of paired inlet and return connectors, wherein a subset of the paired inlet and return connectors are mounted at same vertical height and remainder of the paired inlet connectors are mounted with the inlet at a higher vertical height than the return connector.

### Claim 12 (depends on 7)

The electronic rack of claim 7, wherein each of the fluid connectors further comprises a locking mechanism affixing the fluid connector in a fixed location within the channel.

### Claim 13 (depends on 12)

The electronic rack of claim 12, wherein the locking mechanism comprises one of: a tight fit of the fluid connector within a channel imparting motion resistance of the fluid connector within a channel preventing free slide; or arms extending from the fluid connector and engaging teeth within the channel.

### Claim 14 (depends on 7)

The electronic rack of claim 7, wherein the frame further comprises a plurality of locators positioned at preset locations and configured for locking the fluid connectors at the preset locations.

### Claim 15

A method for providing cooling fluid to an electronic rack of a plurality of server chassis, comprising:
mounting a frame with a plurality of connector modules to the electronic rack using mounts, each connector module provided with at least two channels;
attaching a plurality of fluid connectors to the connector modules by attaching at least one fluid connector in each of the channels; and
for each of the server chassis, verifying spatial orientation of inlet connector and outlet connector and sliding two of the plurality of connectors to match the spatial orientation of the inlet connector and outlet connector, and securing the two connectors in the spatial orientation using a locking mechanism, and then mounting the server chassis in the electronic rack by engaging the two connectors with the inlet connector and outlet connector.

### Claim 16 (depends on 15)

The method of claim 15, wherein securing the two connectors comprises positioning the two connectors in selected predefined dedicated locations identified by pre-arranged locators applied to the channels.

### Claim 17 (depends on 15)

The method of claim 15, further comprising mounting a multi-device chassis having multiple cooling devices by engaging the multi-device chassis with multiple pairs of fluid connectors.

### Claim 18 (depends on 17)

The method of claim 17, wherein for each pair of fluid connectors, affixing a riser connector at higher elevation than a return connector.
