Adjustable retention device for heat sink assembly

Patent metadata

Field	Value
Publication number	US-12207446-B2
Application number	US-202217816767-A
Country	US
Kind code	B2
Filing date	Aug 2, 2022
Priority date	Aug 2, 2022
Publication date	Jan 21, 2025
Grant date	Jan 21, 2025

Abstract

A heat sink retention device for retaining a heat sink, including a spring, proximate an electronic device in a circuit board. The device includes a first component configured to be attached to a circuit board, and a second component configured to be adjustably attached to the first component, and including an opening configured to retain a portion of a spring of a heat sink. When the first and second components are attached together and the first component is attached to the circuit board, the heat sink retention device is adapted to allow application of a force on the spring in order to retain the heat sink proximate an electronic device mounted on the circuit board.

First claim

What is claimed is:

1. A heat sink retention device for retaining a heat sink, including a spring, proximate an electronic device in a circuit board, the heat sink retention device comprising:
a first component configured to be attached to the circuit board; and
a second component configured to be adjustably attached to the first component, and including an opening configured to retain a portion of the spring of the heat sink, and at least one leg that is adapted to allow each of the at least one leg to be slidably inserted into at least one lumen in the first component and lock into place in order to adjustably attach the first and the second components together,
wherein when the first and second components are attached together and the first component is attached to the circuit board, the heat sink retention device is adapted to allow application of a force on the spring in order to retain the heat sink proximate an electronic device mounted on the circuit board.

2. The device of claim 1 , wherein the second component moves relative to the first component in order to be adjusted to apply the force to the spring and retain the heat sink.

3. The device of claim 2 , wherein the second component locks into the first component in order to attach the first and the second components together.

4. The device of claim 1 , further comprising:
a third component that locks the first and the second components together in order to attach the first and the second components.

5. The device of claim 1 , wherein the second component is u-shaped and includes the at least one leg including a first leg and a second leg that are adapted to allow the first and the second legs to be slidably inserted into the at least one lumen including a first lumen and a second lumen, respectively, in the first component and lock into place in order to adjustably attach the first and the second components together.

6. The device of claim 5 , wherein the first and the second legs of the second component each include a tab that can be locked into one of a plurality of openings at different locations along the first and the second lumens of the first component to allow for adjustable attachment, wherein the plurality of openings are configured to fit the tabs.

7. The device of claim 5 , wherein the first and the second legs of the second component each include a first plurality of openings at different locations along the first and the second legs, and the first and the second lumens of the first component each include a second plurality of openings at different locations along the first and the second lumens, and the heat sink retention device further comprises:
a third component including a first pin and a second pin extending therefrom and configured to extend through two of the openings of the second plurality of openings on the first component and a corresponding two of the openings of the first plurality of openings on the second component, wherein the third component is adapted to allow for attachment of the first and the second components together.

8. The device of claim 1 , wherein the opening includes an elastomeric coating adapted to allow a damping effect to shock and vibration experienced by the spring of the heat sink.

9. A heat sink assembly for retaining a heat sink, including a heat sink retention device, including a spring, proximate an electronic device in a circuit board, the heat sink assembly comprising:
the circuit board;
the electronic device mounted on the circuit board;
the heat sink, including the spring, proximate the electronic device mounted in the circuit board; and
the heat sink retention device comprising:
a first component configured to be attached to the circuit board; and
a second component configured to be adjustably attached to the first component, and including an opening configured to retain a portion of the spring of the heat sink, and at least one leg that is adapted to allow the at least one leg to be slidably inserted into at least one lumen in the first component and lock into place in order to adjustably attach the first and the second components together,

wherein when the first and the second components are attached together and the first component is attached to the circuit board, the heat sink retention device is adapted to allow application of a force on the spring in order to retain the heat sink proximate the electronic device mounted on the circuit board.

10. The heat sink assembly of claim 9 , wherein the second component moves relative to the first component in order to be adjusted to apply the force to the spring and retain the heat sink.

11. The heat sink assembly of claim 10 , wherein the second component locks into the first component in order to attach the first and the second components together.

12. The heat sink assembly of claim 9 , wherein the heat sink retention device further comprises:
a third component that locks the first and the second components together in order to attach the first and the second components.

13. The heat sink assembly of claim 9 , wherein the second component is u-shaped and the at least one leg includes a first leg and a second leg that are adapted to allow the first and the second legs to be slidably inserted into at least one lumen including a first lumen and a second lumen, respectively, in the first component and lock into place in order to adjustably attach the first and the second components together.

14. The heat sink assembly of claim 13 , wherein the first and the second legs of the second component each include a tab that can be locked into one of a plurality of openings at different locations along the first and the second lumens of the first component to allow for adjustable attachment, wherein the plurality of openings are configured to fit the tabs.

15. The heat sink assembly of claim 13 , wherein the first and the second legs of the second component each include a first plurality of openings at different locations along the first and the second legs, and the first and the second lumens of the first component each includes a second plurality of openings at different locations along the first and the second lumens, and the heat sink retention device further comprises:
a third component including a first pin and a second pin extending therefrom and configured to extend through two of the openings of the second plurality of openings on the first component and a corresponding two of the openings of the first plurality of openings on the second component, wherein the third component is adapted to allow for attachment of the first and the second components together.

16. The heat sink assembly of claim 9 , wherein the opening includes an elastomeric coating adapted to allow a damping effect to shock and vibration experienced by the spring of the heat sink.

17. The heat sink assembly of claim 9 , further comprising:
a thermal interlayer material located between the heat sink and the electronic device.

18. A method of retaining a heat sink including a spring proximate an electronic device in a circuit board, the method comprising:
providing the circuit board with the electronic device mounted thereon;
providing the heat sink including the spring;
providing a heat sink retention device comprising:
a first component configured to be attached to the circuit board; and
a second component configured to be adjustably attached to the first component, and including an opening configured to retain a portion of the spring of the heat sink, and at least one leg that is adapted to allow the at leas

Assignees

• IBM

Inventors

• Vishkasougheh Mehdi Hamid
• O'Connell Kevin
• Campbell Eric J
• Alfoqaha Arshad
• Smith Connor L

Classifications

• H10W40/641 Primary

  Snap-on arrangements, e.g. clips · CPC title

• H05K7/2049 Primary

  Pressing means used to urge contact, e.g. springs · CPC title

• H01L23/4093

  Electricity · mapped topic