Energy dampeners for electronic devices

Patent metadata

Field	Value
Publication number	US-11808316-B2
Application number	US-202217852782-A
Country	US
Kind code	B2
Filing date	Jun 29, 2022
Priority date	Sep 4, 2018
Publication date	Nov 7, 2023
Grant date	Nov 7, 2023

Abstract

An electronic device can include a first electronic component, a second electronic component, and an energy dampener positioned between and in contact with the first electronic component and the second electronic component. The energy dampener in this example includes a carbon nanotube-aerogel matrix including carbon nanotubes embedded in an aerogel with a rubber composited therewith.

First claim

What is claimed is:

1. An electronic device comprising:
a first electronic component;
a second electronic component; and
an energy dampener positioned between and in contact with the first electronic component and the second electronic component, wherein the energy dampener comprises a carbon nanotube-aerogel matrix which comprises carbon nanotubes embedded in an aerogel and composited with a rubber, the aerogel being selected from the group consisting of a silica aerogel and a plastic aerogel.

2. The electronic device of claim 1 , further comprising a third electronic component, wherein the energy dampener is further positioned between the first electronic component and the third electronic component; or wherein the energy dampener is further positioned between the first electronic component and the third electronic component and between the second electronic component and the third electronic component.

3. The electronic device of claim 1 , wherein the first electronic component includes one of a computer keyboard link bar or a keystroke plate, and the second electronic component includes the other of the computer keyboard link bar or the keystroke plate.

4. The electronic device of claim 1 , wherein the first electronic component includes one of a fastener or a hard drive, and the second electronic component includes the other of the fastener or the hard drive.

5. The electronic device of claim 1 , wherein the carbon nanotubes have a surface area of about 400 m 2 /g to about 2,500 m 2 /g, and the aerogel has a surface area of about 1,500 m 2 /g to about 3,500 m 2 /g.

6. The electronic device of claim 1 , wherein the carbon nanotubes comprise single-walled carbon nanotubes.

7. The electronic device of claim 1 , wherein the carbon nanotubes comprise multi-walled carbon nanotubes including an inner nanotube concentrically positioned within an outer nanotube.

8. The electronic device of claim 1 , wherein the rubber is selected from the group consisting of silicone rubber, EPDM rubber, epichlorohydrin rubber, polyacrylic rubber, fluorosilicone rubber, fluoroelastomer, perfluoroelastomer, polyether block amide, chlorosulfonated polyethylene, ethylene-vinyl acetate, polysulfide rubber, thermoplastic elastomer, and a combination thereof.

9. The electronic device of claim 1 , wherein the carbon nanotube-aerogel matrix further comprises graphene embedded in the aerogel.

10. The electronic device of claim 1 , wherein:
the aerogel is the silica aerogel;
the rubber is silicone rubber; and
the carbon nanotube-aerogel matrix further includes graphene embedded therein.

11. The electronic device of claim 1 , wherein the aerogel is the plastic aerogel, and wherein the plastic aerogel is a polyimide aerogel.

12. A method of damping energy within an electronic device comprising:
applying an energy dampener to a first interface of a first electronic component, wherein the energy dampener comprises a carbon nanotube-aerogel matrix including carbon nanotubes embedded in an aerogel and composited with a rubber, the aerogel being selected from the group consisting of a silica aerogel and a plastic aerogel; and
positioning a second interface of second electronic component against the energy dampener, wherein a portion or all of the energy dampener is in contact with and between the first electronic component and the second electronic component to dampen energy transfer from the first electronic component to the second electronic component or from the second energy component to the first energy component.

13. The method of claim 12 , wherein prior to the applying, the method further comprises compounding the carbon nanotube-aerogel matrix with the rubber by admixing the rubber with the carbon nanotube-aerogel matrix in the presence of a lubricant to form an extrudable composite, and wherein the applying includes extruding the extrudable composite onto the first interface under heat.

14. The method of claim 13 , further comprising shaping the energy dampener either i) after applying the energy dampener to the first interface or ii) after positioning the second interface, by removing a portion of the energy dampener.

15. The method of claim 12 , wherein the carbon nanotubes have a surface area of about 400 m 2 /g to about 2,500 m 2 /g, and wherein the aerogel has a surface area of about 1,500 m 2 /g to about 3,500 m 2 /g.

16. The method of claim 12 , wherein the carbon nanotubes comprise single-walled carbon nanotubes.

17. The method of claim 12 , wherein the carbon nanotubes comprise multi-walled carbon nanotubes including an inner nanotube concentrically positioned within an outer nanotube.

18. The method of claim 12 , wherein the rubber is selected from the group consisting of silicone rubber, EPDM rubber, epichlorohydrin rubber, polyacrylic rubber, fluorosilicone rubber, fluoroelastomer, perfluoroelastomer, polyether block amide, chlorosulfonated polyethylene, ethylene-vinyl acetate, polysulfide rubber, thermoplastic elastomer, and a combination thereof.

19. The method of claim 12 , wherein the carbon nanotube-aerogel matrix further comprises graphene embedded in the aerogel.

20. An electronic device comprising:
a first electronic component including one of a computer keyboard link bar or a keystroke plate;
a second electronic component including the other of the computer keyboard link bar or the keystroke plate; and
an energy dampener positioned between and in contact with the first electronic component and the second electronic component, wherein the energy dampener comprises a carbon nanotube-aerogel matrix which comprises carbon nanotubes embedded in an aerogel and composited with a rubber.

Assignees

• Hewlett Packard Development Co

Inventors

• Wu Kuan-Ting
• Ku Chung-Hua
• Chang Chi Hao

Classifications

• F16F1/3605 Primary

  characterised by their material (F16F1/362, F16F1/364, F16F1/366, F16F1/37 take precedence; composition of macromolecular compounds in general C08L) · CPC title

• C08K3/041

  Carbon nanotubes · CPC title

• C08K3/042

  Graphene or derivatives, e.g. graphene oxides · CPC title

• C08K3/36

  Silica · CPC title

• C08K5/09

  Carboxylic acids; Metal salts thereof; Anhydrides thereof · CPC title