Electrical assembly

Patent metadata

Field	Value
Publication number	US-11266008-B2
Application number	US-201916601585-A
Country	US
Kind code	B2
Filing date	Oct 15, 2019
Priority date	Oct 15, 2018
Publication date	Mar 1, 2022
Grant date	Mar 1, 2022

Abstract

An electrical assembly includes an electrical connector mounted upon a PCB and receiving a CPU therein, and a liquid Nitrogen heat dissipation device is mounted upon the PCB and intimately seated upon the CPU to remove the heat therefrom. The liquid Nitrogen heat dissipation device includes a case forming a chamber to receive the liquid Nitrogen therein. A plurality of fixing arms extend outwardly and radially to fix the liquid Nitrogent heat dissipation device in position. A fixing seat is attached upon the PCB to precisely located the CPU in position with regard to the electrical connector.

First claim

What is claimed is:

1. An electrical assembly comprising:
a printed circuit board defining an upper surface and a lower surface opposite to each other in a vertical direction;
a back plate positioned under the lower surface;
an electrical connector mounted upon the upper surface;
an electronic package received within the connector;
a fixing seat positioned on the upper surface to not only surround the electrical connector but also downwardly press the electronic package;
a heat dissipation device having a case filled with liquid Nitrogen and downwardly pressing the electronic package; and
a metallic positioning seat positioned between the fixing seat and the printed circuit board in the vertical direction; wherein
a plurality of metallic alignment posts extend from the positioning seat, and the heat dissipation device includes a plurality of outwardly and radially extending fixing arms engaged with corresponding alignment posts, respectively.

2. The electrical assembly as claimed in claim 1 , wherein the heat dissipation device downwardly presses a center region of the electronic package while the fixing seat downwardly presses a peripheral region of the electronic package.

3. The electrical assembly as claimed in claim 1 , wherein the alignment posts upwardly extend away from the printed circuit board in a stationary manner.

4. The electrical assembly as claimed in claim 3 , wherein said fixing arms extend from an upper region of the heat dissipation device and are spaced from the printed circuit board with a distance roughly equal to a sum of a height of the case, that of the electronic package and that of the electrical connector.

5. The electrical assembly as claimed in claim 3 , wherein the alignments posts extend through corresponding through holes in the fixing seat.

6. The electrical assembly as claimed in claim 1 , wherein the fixing seat is secured to the back plate with the printed circuit board sandwiched therebetween in the vertical direction.

7. The electrical assembly as claimed in claim 6 , wherein the back plate includes a plurality of screw posts, and the fixing seat includes a plurality of nuts secured thereto so as to secure the fixing seat to the back plate with the printed circuit board therebetween.

8. The electrical assembly as claimed in claim 1 , wherein said fixing arms extend from an upper region of the heat dissipation device and are spaced from the printed circuit board with a distance roughly equal to a sum of a height of the case, that of the electronic package and that of the electrical connector.

9. The electrical assembly as claimed in claim 1 , wherein the fixing arms extend toward four corners of the fixing seat.

10. The electrical assembly as claimed in claim 1 , wherein the positioning seat is of a frame like configuration.

11. The electrical assembly as claimed in claim 1 , wherein the fixing seat is of a frame like configuration.

12. An electrical assembly comprising:
a printed circuit board defining an upper surface in a vertical direction;
a metallic positioning seat directly positioned upon the upper surface;
an insulative fixing seat positioned upon the positioning seat;
an electrical connector mounted upon upper surface and surrounded by both the positioning seat and the fixing seat;
an electronic package received within the electrical connector; and
a heat dissipation device intimately positioned upon the electronic package;
wherein
the heat dissipation device downwardly presses a center region of the electronic package while the fixing seat downwardly presses a peripheral region of the electronic package; and
the positioning seat is provided with a plurality of sleeves, and the fixing seat is provided with corresponding through holes receiving said sleeves, respectively.

13. The electrical assembly as claimed in claim 12 , wherein the heat dissipation device further includes a plurality of outwardly and radially extending fixing arms engaged with corresponding alignment posts extending upwardly from the positioning seat.

14. The electrical assembly as claimed in claim 13 , wherein the alignment posts extend through corresponding through holes in the fixing seat.

15. The electrical assembly as claimed in claim 12 , further comprising a back plate positioned upon a lower surface of the printed circuit board, and wherein a plurality of nuts extend downwardly through corresponding through holes, respectively, and a plurality of screw posts extend upwardly through corresponding sleeves, respectively, to engage the nuts.

16. An electrical assembly comprising:
a back plate positioned at a lower surface of a printed circuit board;
a metallic positioning seat positioned at an upper surface of the printed circuit;
an insulative fixing seat positioned upon the positioning seat;
an electrical connector mounted upon the upper surface of the printed circuit board and surrounded by both the positioning seat and the fixing seat;
an electronic package placed within the electrical connector; and
a heat dissipation device intimately positioned upon the electronic package; wherein
the heat dissipation device downwardly presses a center region of the electronic package while the fixing seat downwardly presses a peripheral region of the electronic package;
the positioning seat includes a plurality of alignment posts, and the heat dissipation device includes a plurality of outwardly and radially extending fixing arms engaged with corresponding alignment posts, respectively; and
the alignment posts extend through corresponding through holes in the fixing seat.

17. An electrical assembly comprising:
a back plate positioned at a lower surface of a printed circuit board;
a metallic positioning seat positioned at an upper surface of the printed circuit;
an insulative fixing seat positioned upon the positioning seat;
an electrical connector mounted upon the upper surface of the printed circuit board and surrounded by both the positioning seat and the fixing seat;
an electronic package placed within the electrical connector; and
a heat dissipation device intimately positioned upon the electronic package; wherein
the heat dissipation device downwardly presses a center region of the electronic package while the fixing seat downwardly presses a peripheral region of the electronic package;
the positioning seat includes a plurality of alignment posts, and the heat dissipation device includes a plurality of outwardly and radially extending fixing arms engaged with corresponding alignment posts, respectively; and
the positioning seat is provided with a plurality of sleeves, and the fixing seat is provided with corresponding through holes receiving the sleeves, respectively.

Assignees

• Fu Ding Prec Component Shen Zhen Co Ltd
• Foxconn Interconnect Technology Ltd
• Fuding Prec Components Shenzhen Co Ltd

Inventors

• Wu Heng-Kang
• Tan Xiong
• Peng Fu-Jin

Classifications

• H10W40/305

  the fluid being a liquefied gas, e.g. liquid nitrogen · CPC title

• H10W40/60

  Securing means for detachable heating or cooling arrangements, e.g. clamps · CPC title

• H10W78/00

  Detachable holders for supporting packaged chips in operation · CPC title

• G06F2200/201

  Cooling arrangements using cooling fluid · CPC title

• H05K1/0201

  Thermal arrangements, e.g. for cooling, heating or preventing overheating · CPC title