Cooling Arrangement to Cool Components on Circuit Board

• US 20090080156A1
• Filed: 09/07/2007
• Published: 03/26/2009
• Est. Priority Date: 09/07/2007
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Ahuja, Sandeep, Sauciuc, Ioan
• Granted Patent: US 7,751,189 B2
• Time in Patent Office: Days
• US Class Current: 361/697
• CPC Class Codes: G06F 1/20 Cooling means
• CPC Class Codes: H05K 7/20727 within server blades for removing heat from heat source

Abstract

A circuit board including a blower thereon to cool a heat generating arrangement. The circuit board includes a board substrate; a blower disposed on the board substrate, the blower having an inlet adapted to take in coolant in a inlet direction, and an outlet adapted to blow out coolant in a first outlet direction extending at an angle with respect to the inlet direction; and a heat-generating arrangement disposed on the board substrate such that the blower is adapted to blow out coolant in the first outlet direction to cool the heat generating arrangement.

Claims

1. A circuit board including:

a board substrate;

a blower disposed on the board substrate, the blower having an inlet adapted to take in coolant in a inlet direction, and an outlet adapted to blow out coolant in a first outlet direction extending at an angle with respect to the inlet direction;

a heat-generating arrangement disposed on the board substrate such that the blower is adapted to blow out coolant in the first outlet direction to cool the heat generating arrangement.

2. The circuit board of claim 1, further comprising a heat sink disposed on the heat-generating arrangement and including fins oriented to direct coolant emerging from the outlet of the blower over the heat generating arrangement and out from an outlet of the heat sink.

3. The circuit board of claim 2, wherein the fins are oriented to direct coolant emerging from the outlet of the blower over the heat-generating arrangement in the first outlet direction and out from an outlet of the heat sink.

4. The circuit board of claim 2, wherein the heat sink includes plurality of heat sinks.

5. The circuit board of claim 3, wherein the heat generating arrangement has a length dimension L and a width dimension W, W being larger than L, and wherein the first outlet direction is substantially parallel to the length dimension L.

6. The circuit board of claim 1, wherein the blower is a tangential blower, and wherein the first outlet direction extends at an angle of about 90 degrees with respect to the inlet direction.

7. The circuit board of claim 1, further including an axial fan disposed on the board substrate and adapted to blow coolant to the inlet of the blower.

8. The circuit board of claim 3, further including an axial fan disposed on the board substrate to blow coolant emerging from the outlet of the heat sink in a second outlet direction extending at an angle with respect to the first outlet direction.

9. The circuit board of claim 8, wherein the second outlet direction extends at an angle of about 90 degrees with respect to the first outlet direction.

10. The circuit board of claim 1, wherein the heat generating arrangement includes a CPU.

11. The circuit board of claim 10, wherein the heat generating arrangement includes a plurality of in-line CPU'"'"'s.

12. The circuit board of claim 10, wherein the heat generating arrangement includes a CPU and a DRAM integrated into the CPU.

13. A system including:

an electronic assembly comprising;

a circuit board including;

a board substrate;

a blower disposed on the board substrate, the blower having an inlet adapted to take in coolant in a inlet direction, and an outlet adapted to blow out coolant in a first outlet direction extending at an angle with respect to the inlet direction;

a heat-generating arrangement disposed on the board substrate such that the blower is adapted to blow out coolant in the first outlet direction to cool the heat generating arrangement; and

a main memory coupled to the electronic assembly.

14. The circuit board of claim 13, further comprising a heat sink disposed on the heat-generating arrangement and including fins oriented to direct coolant emerging from the outlet of the blower over the heat generating arrangement and out from an outlet of the heat sink in the first outlet direction.

15. The circuit board of claim 14, wherein the blower is a tangential blower, and wherein the first outlet direction extends at an angle of about 90 degrees with respect to the inlet direction.