IP Library Granted Patent US 11,439,001
Granted Patent B2
US 11,439,001 · App. 16/683,824 · Granted Sep 6, 2022

System and method for heat removal using a thermal potting solution in an information handling system

Inventors: Iris Huang (Taipei, TW); Cliff CH Chuang (New Taipei, TW)
Assignee: Dell Products L.P.
H05K1/0203G06F1/1662G06F1/203G06F3/0202H05K1/181H05K3/284H05K3/303H05K7/20154H05K7/20172H05K2201/066H05K2201/10522H05K2201/2018H05K2203/1316H05K2203/1327
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Quick Facts
Patent No.
US 11,439,001
App. No.
16/683,824
Granted
Sep 6, 2022
Kind
B2
Abstract

An information handling system includes a printed circuit board (PCB), a barrier frame, thermal potting material that fills the barrier frame, and a heat removing structure embedded into the thermal potting material. The barrier frame encloses a first device, and extends to also enclose a second location of the PCB. The thermal potting material surrounds the first device. The heat removing structure includes a first pad co-located with the first device, a second pad co-located with the second location, and a thermally conductive connection between the first pad and the second pad. The heat removing structure may remove heat generated by the first device to the second pad.

Claims (14)

1. An information handling system, comprising: a printed circuit board (PCB) including a first device at a first location of the PCB; a barrier frame that encloses the first device, and that extends to also enclose a second location of the PCB; thermal potting material that fills the barrier frame, and that surrounds the first device; a heat removing structure embedded into the thermal potting material, the heat removing structure including a first pad co-located with the first device, a second pad co-located with the second location, and a thermally conductive connection between the first pad and the second pad, the heat removing structure to remove heat generated by the first device to the second pad; a keyboard situated above the PCB, wherein the first location is under the keyboard, and wherein the second location is not under the keyboard; a heat removing apparatus thermally attached to the second pad; and a heat sink thermally attached to the heat removing apparatus.

2. The information handling system of claim 1 , wherein: the PCB further includes a second device at a third location of the PCB; the barrier frame further encloses the second device; the thermal potting material further surrounds the second device; and the heat removing structure further includes a third pad co-located with the second device, wherein the thermally conductive connection is further between the first and second pads, and the third pad, the heat removing structure further to remove heat generated by the second device to the second pad.

3. The information handling system of claim 1 , where in the barrier frame comprises an electrically non-conductive wall formed to retain the thermal potting material.

4. The information handling system of claim 3 , wherein the barrier frame is formed of one of a graphite fiber, a carbon fiber, a plastic material, and a thermoplastic material.

5. The information handling system of claim 1 , wherein the thermal potting material includes one of an epoxy potting compound, a urethane potting compound, and a silicon potting compounds.

6. The information handling system of claim 5 , wherein the thermal potting material includes one of alumina, graphite fiber, and carbon fiber.

7. The information handling system of claim 1 , wherein the heat removing structure is constructed of one of a metal and graphite.

8. A method, comprising: attaching a first device at a first location of a printed circuit board (PCB); installing a barrier frame to the PCB, wherein the barrier frame encloses the first device and extends to also enclose a second location of the PCB; filling the barrier frame with thermal potting material, the thermal potting material surrounding the first device; embedding into the thermal potting material a heat removing structure, the heat removing structure including a first pad co-located with the first device, a second pad co-located with the second location, and a thermally conductive connection between the first pad and the second pad; wherein heat generated by the first device may be removed to the second pad via the heat removing structure; providing a keyboard situated above the PCB, wherein the first location is under the keyboard, and wherein the second location is not under the keyboard; thermally attaching a heat removing apparatus thermally to the second pad; and thermally attaching a heat sink to the heat removing apparatus.

9. The method of claim 8 , further comprising: attaching a second device at a third location of the PCB, wherein the barrier frame further encloses the second device, the thermal potting material further surrounds the second device, and the heat removing structure further includes a third pad co-located with the second device, wherein the thermally conductive connection is further between the first and second pads, and the third pad, the heat removing structure further to remove heat generated by the second device to the second pad.

10. The method of claim 8 , where in the barrier frame comprises an electrically non-conductive wall formed to retain the thermal potting material, and is formed of one of a graphite fiber, a carbon fiber, a plastic material, and a thermoplastic material.

11. The method of claim 8 , wherein the thermal potting material includes one of an epoxy potting compound, a urethane potting compound, and a silicon potting compounds.

12. The method of claim 11 , wherein the thermal potting material includes one of alumina, graphite fiber, and carbon fiber.

13. The method of claim 8 , wherein the heat removing structure is constructed of one of a metal and graphite.

14. An information handling system, comprising: a printed circuit board (PCB) including a first device at a first location of the PCB, and a second device at a second location of the PCB; a keyboard situated above the PCB, wherein the first location is under the keyboard, and wherein the second location is not under the keyboard; a barrier frame that encloses the first device, and that extends to also enclose a third location of the PCB, wherein the third location is not under the keyboard; thermal potting material filling that fills the barrier frame, and that surrounds the first device; a heat removing structure embedded into the thermal potting material, the heat removing structure including a first pad co-located with the first device, a second pad co-located with the third location, and a thermally conductive connection between the first pad and the second pad, the heat removing structure to remove heat generated by the first device to the second pad; a first heat removing apparatus thermally attached to the second pad; a first heat sink thermally attached to the first heat removing apparatus; a second heat removing apparatus thermally attached to the second device; and a second heat sink thermally attached to the second heat removing apparatus.

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 (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 IN PATENTS PREVIOUSLY RECORDED AT REEL/FRAME (052216/0758) 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
Reel/Frame 060438/0680 →
RELEASE OF SECURITY INTEREST AF REEL 052243 FRAME 0773 Recorded Nov 2, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
To: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC
Reel/Frame 058001/0152 →
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 Mar 26, 2020
From: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH
Reel/Frame 052243/0773 →
PATENT SECURITY AGREEMENT (NOTES) Recorded Mar 24, 2020
From: DELL PRODUCTS L.P.; EMC IP HOLDING COMPANY LLC
To: THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., AS COLLATERAL AGENT
Reel/Frame 052216/0758 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 14, 2019
From: HUANG, IRIS; CHUANG, CLIFF CH
To: DELL PRODUCTS, LP
Reel/Frame 051010/0882 →
Continuity (1)
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