IP Library › Granted Patent US 11,802,807
Granted Patent B2
US 11,802,807 · App. 16/583,084 · Granted Oct 31, 2023

Leak detection apparatus for an information handling system

Inventors: Chao Hung (Brian) Li (New Taipei, TW); Wen Hung (Steven) Lu (Taipei, TW)
Assignee: Dell Products L.P.
G01M3/183F28F27/00G05B15/02G05D7/0676H05K7/20309H05K7/20318H05K7/20381F28F2265/16
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Quick Facts
Patent No.
US 11,802,807
App. No.
16/583,084
Filed
Sep 25, 2019
Granted
Oct 31, 2023
Kind
B2
Art Unit
3763
USPC
73/46
Abstract

A leak inhibition/detection device includes an absorbent material, a leak sensor in contact with the absorbent material, and an enclosure surrounding the absorbent material. The leak inhibition/detection device is configured to surround a joint between tubing and a cold plate/evaporator or a radiator/condenser of a liquid cooling module of an information handling system.

Claims (34)

1. An information handling system, comprising:

a processor; and

a liquid cooling module thermally coupled to the processor, the liquid cooling module including:

a cold plate/evaporator configured to transfer heat from the processor to a coolant;

a radiator/condenser configured to removing heat from the coolant;

tubing connecting the cold plate/evaporator and the radiator/condenser;

a pump to circulate the coolant through the tubing; and

at least one leak inhibition/detection device positioned to surround a joint between the tubing and the cold plate/evaporator or the radiator/condenser, the leak inhibition/detection device including an absorbent material, a leak sensor, and an enclosure, wherein the leak sensor is an optical sensor that detects a change in optical properties of the absorbent material as a cooling liquid is absorbed, wherein the leak sensor provides a signal that includes an indication of an amount of the coolant that has been absorbed by the absorbent material, wherein a size of a leak is determined based on a rate of change in the signal from the leak sensor.

2. The information handling system of claim 1 , wherein the absorbent material includes a fiber or a polymer.

3. The information handling system of claim 2 , wherein the fiber includes a natural fiber or a synthetic fiber.

4. The information handling system of claim 1 , wherein the processor is configured to:

receive a signal from the leak sensor; and

shut down the system.

5. The information handling system of claim 4 , wherein shutting down the system includes writing unsaved data from a memory to a storage and powering down the information handling system.

6. The information handling system of claim 4 , wherein the processor is further configured to notify a user of the information handling system after receiving the signal from the leak sensor and prior to shutting down the system.

7. The information handling system of claim 1 , wherein the absorbent material is configured to be in direct contact with the joint.

8. A liquid cooling module for removing heat from an information handling system, the liquid cooling module including:

a cold plate/evaporator configured to transfer heat to a coolant;

a radiator/condenser configured to removing heat from the coolant;

a pump to circulate the coolant through tubing connecting the cold plate/evaporator and the radiator/condenser; and

at least one leak inhibition/detection device configured to surround a joint between the tubing and the cold plate/evaporator or the radiator/condenser, the leak inhibition/detection device including an absorbent material, a leak sensor, and an enclosure, wherein the leak sensor is an optical sensor that detects a change in optical properties of the absorbent material as a cooling liquid is absorbed, wherein the leak sensor provides an indication of an amount of the coolant that has been absorbed by the absorbent material, wherein a size of a leak is determined based on a rate of change in the signal from the leak sensor.

9. The liquid cooling module of claim 8 , wherein the absorbent material includes a fiber or a polymer.

10. The liquid cooling module of claim 9 , wherein the fiber includes a natural fiber or a synthetic fiber.

11. The liquid cooling module of claim 8 , wherein the leak sensor is configured to provide a signal to initiate a shutdown of the information handling system when a leak is detected.

12. The liquid cooling module of claim 8 , wherein the absorbent material is configured to be in direct contact with the joint.

13. An apparatus comprising:

an absorbent material;

a leak sensor in contact with the absorbent material; and

an enclosure surrounding the absorbent material,

wherein the apparatus is configured to surround a joint between a tubing and a cold plate/evaporator or a radiator/condenser of a liquid cooling system of an information handling system, wherein the leak sensor is an optical sensor that detects a change in optical properties of the absorbent material as a cooling liquid is absorbed, wherein the leak sensor provides an indication of an amount of the cooling liquid that has been absorbed by the absorbent material, wherein a size of a leak is determined based on a rate of change in the signal from the leak sensor.

14. The apparatus of claim 13 , wherein the absorbent material includes a fiber or a polymer.

15. The apparatus of claim 14 , wherein the fiber includes a natural fiber or a synthetic fiber.

16. The apparatus of claim 13 , wherein the leak sensor is configured to provide a signal to initiate a shutdown of the information handling system when a leak is detected.

17. The apparatus of claim 13 , wherein the absorbent material is configured to be in direct contact with the joint.

Assignments (9)
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (053546/0001) Recorded Jun 23, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL MARKETING L.P. (ON BEHALF OF ITSELF AND AS SUCCESSOR-IN-INTEREST TO CREDANT TECHNOLOGIES, INC.); DELL INTERNATIONAL L.L.C.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO FORCE10 NETWORKS, INC. AND WYSE TECHNOLOGY L.L.C.); EMC IP HOLDING COMPANY LLC
Reel/Frame 071642/0001 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (051302/0528) Recorded Jun 23, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC; DELL MARKETING CORPORATION (SUCCESSOR-IN-INTEREST TO WYSE TECHNOLOGY L.L.C.); SECUREWORKS CORP.
Reel/Frame 060438/0593 →
RELEASE OF SECURITY INTEREST IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (053311/0169) Recorded Jun 23, 2022
From: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS NOTES COLLATERAL AGENT
To: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC
Reel/Frame 060438/0742 →
RELEASE OF SECURITY INTEREST AT REEL 051449 FRAME 0728 Recorded Nov 2, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC; WYSE TECHNOLOGY L.L.C.; SECUREWORKS CORP.; EMC CORPORATION
Reel/Frame 058002/0010 →
SECURITY INTEREST Recorded Jun 5, 2020
From: DELL PRODUCTS L.P.; EMC CORPORATION; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS COLLATERAL AGENT
Reel/Frame 053311/0169 →
SECURITY AGREEMENT Recorded Apr 22, 2020
From: CREDANT TECHNOLOGIES INC.; DELL INTERNATIONAL L.L.C.; DELL MARKETING L.P.; DELL PRODUCTS L.P.; DELL USA L.P.; EMC CORPORATION; FORCE10 NETWORKS, INC.; WYSE TECHNOLOGY L.L.C.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A.
Reel/Frame 053546/0001 →
SECURITY AGREEMENT Recorded Dec 31, 2019
From: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC; WYSE TECHNOLOGY L.L.C.; SECUREWORKS CORP.; EMC CORPORATION
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
Reel/Frame 051449/0728 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 18, 2019
From: LI, CHAO HUNG (BRIAN); LU, WEN HUNG (STEVEN)
To: DELL PRODUCTS, LP
Reel/Frame 051324/0223 →
PATENT SECURITY AGREEMENT (NOTES) Recorded Dec 16, 2019
From: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC; WYSE TECHNOLOGY L.L.C.; SECUREWORKS CORP.
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS COLLATERAL AGENT
Reel/Frame 051302/0528 →
Continuity (1)
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