BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates generally to an electrical assembly, and particularly to the combination of a CPU (Central Processing Unit) loaded upon an electrical connector which is mounted upon a PCB (printed circuit board), and a liquid Nitrogen heat sink is mounted upon the PCB and intimately seated upon the CPU.

2. Description of Related Arts

China Utility Patent No. CN203786645 discloses a case for retaining a mother board therein, is built with a heat dissipation plate, on which the mother board is attached, having an interior cavity filled with the circulated liquid Nitrogen to remove the heat accumulated on the mother board. Anyhow, the CPU is the primary source of the heat on the mother board so the heat transfer via such a heat dissipation plate does not work well enough

It is desired to have an electrical assembly having the corresponding heat dissipation device to efficiently remove heat generated from the CPU.

SUMMARY OF THE INVENTION

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 Nitrogen 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

