Threaded insert with thermal insulation capability

Patent metadata

Field	Value
Publication number	US-9382936-B2
Application number	US-201213720367-A
Country	US
Kind code	B2
Filing date	Dec 19, 2012
Priority date	Dec 19, 2012
Publication date	Jul 5, 2016
Grant date	Jul 5, 2016

Abstract

A thermally-insulative insert device and method of use of same is disclosed. Specifically, the thermally-insulative insert device, comprising internal and external threads, allows attachment of an assembled part to a heat source while reducing heat transfer between the assembled part and the heat source. It is also an aspect of the present disclosure to provide easy-to-implement and cost-effective methods of using and assembling the thermally-insulative insert device.

First claim

What is claimed is:

1. An assembled system comprising:
an attachment screw comprising a screw head and a screw threaded shaft portion;
a heat source comprising a threaded aperture;
an assembly part having a through hole;
a thermally-insulative threaded insert device comprising:
a bottom portion comprising a threaded cylindrical outer surface configured to engage the threaded aperture;
a threaded cylindrical inner surface defining an aperture configured to threadably engage the attachment screw; and
a top portion comprising an annular flange; and
a thermal insulation part having a through hole, the thermal insulation part disposed between the thermally-insulative threaded insert device and the screw head, an upper surface of the thermal insulation part being engaged with a lower surface of the assembly part with the through holes of the assembly part and the thermal insulation part being aligned;
wherein the screw threaded shaft portion of the attachment screw passes through the aligned through holes in the assembly part and the thermal insulation part such that the screw head engages an upper surface of the assembly part, and wherein the screw threaded shaft portion engages the inner surface within the aperture of the thermally-insulative threaded insert device and the threaded aperture of the heat source threadably engages the outer surface of the thermally-insulative threaded insert device;
wherein the flange forms a substantially planar surface with an upper surface of the heat source by fitting within a counterbore of the upper surface of the heat source, and wherein a lower surface of the thermal insulation part engages an upper surface of the flange and the upper surface of the heat source; and
wherein the thermally-insulative threaded insert device reduces thermal communication between the assembly part and the heat source.

2. The system of claim 1 , wherein the outer surface and the inner surface of the thermally-insulative threaded insert device each comprise a first insulative material.

3. The system of claim 1 , wherein the top portion of the thermally-insulative threaded insert device comprises a first circumference and the bottom portion of the thermally-insulative threaded insert device comprises a second circumference.

4. The system of claim 1 , wherein the annular flange comprises a shape that is at least one of circular and rounded.

5. The system of claim 1 , wherein the threaded cylindrical outer surface of the thermally-insulative threaded insert device and the threaded cylindrical inner surface of the thermally-insulative insert device are substantially concentric.

6. The system of claim 1 , wherein the thermally-insulative threaded insert device is constructed of a solid non-conductive material.

7. The system of claim 1 , wherein the top portion of the thermally-insulative threaded insert device comprises a first cross-sectional radius and the bottom portion comprises a second cross-sectional radius that is smaller than the first cross-sectional radius.

8. The system of claim 1 , further comprising threads disposed on a continuous circumference of the outer surface of the thermally-insulative threaded insert device.

9. An apparatus comprising:
a first assembly component comprising a heat source with a threaded aperture;
an assembly part having a through hole;
a screw comprising a screw head and a screw threaded shaft portion;
a thermally-insulative threaded insert, the thermally-insulative threaded insert including a bottom portion comprising a threaded cylindrical outer surface which threadably engages the threaded aperture, a threaded cylindrical inner surface defining an aperture which threadably engages the screw, and a top portion comprising an annular flange; and
a thermal insulation part having a through hole, the thermal insulation part disposed between the thermally-insulative threaded insert and the screw head, an upper surface of the thermal insulation part being engaged with a lower surface of the assembly part, with the through holes of the assembly part and the thermal insulation part being aligned;
wherein the screw threaded shaft portion of the screw passes through the aligned through holes of the assembly part and the thermal insulation part such that the screw head engages an upper surface of the assembly part, and wherein the screw threaded shaft portion engages the inner surface of the aperture of the thermally-insulative threaded insert device, and the threaded aperture of the heat source threadably engages the outer surface of the thermally-insulative threaded insert;
wherein the flange forms a substantially planar surface with an upper surface of the heat source by fitting within a counterbore of the upper surface of the heat source, and wherein a lower surface of the thermal insulation part engages an upper surface of the annular flange and the upper surface of the heat source;
wherein the thermally-insulative threaded insert reduces thermal communication between the assembly part and the heat source.

10. The apparatus of claim 9 , wherein the outer surface and the inner surface of the thermally-insulative threaded insert each comprise a first insulative material.

11. The apparatus of claim 9 , wherein the outer and inner surfaces of the thermally-insulative threaded insert are substantially concentric.

12. The apparatus of claim 9 , wherein the thermally-insulative threaded insert is constructed of a solid non-conductive material.

13. The apparatus of claim 9 , wherein the top portion of the thermally-insulative threaded insert comprises a first cross-sectional radius and the bottom portion comprises a second cross-sectional radius that is smaller than the first cross-sectional radius.

14. The apparatus of claim 9 , wherein the top portion of the thermally-insulative threaded insert comprises a first circumference and the bottom portion of the thermally-insulative threaded insert comprises a second circumference.

15. The apparatus of claim 9 , wherein the annular flange comprises a shape that is at least one of circular and rounded.

16. The apparatus of claim 9 , further comprising threads disposed on a continuous circumference of the outer surface of the thermally-insulative threaded insert.

Assignees

• Avago Technologies General Ip

Inventors

• Chan Chuan Hoe
• Ko Choon Guan
• Hwang Yi Feng
• Tan Jun

Classifications

• F16B33/006

  Non-metallic fasteners using screw-thread · CPC title

• F16B37/122

  Threaded inserts, e.g. "rampa bolts" · CPC title

• Y10T29/49963

  Threaded fastener · CPC title

• F16B33/004 Primary

  Sealing; Insulation (by means of washers F16B43/001) · CPC title

• F16B37/125

  the external surface of the insert being threaded · CPC title