Apparatus and method for spray-cooling an electronic module

• US 5,718,117 A
• Filed: 04/10/1996
• Issued: 02/17/1998
• Est. Priority Date: 04/10/1996
• Status: Expired due to Fees

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: McDunn, Kevin J., Limper-Brenner, Linda, Press, Minoo D.
• Primary Examiner(s): Bennett, Henry A.
• Assistant Examiner(s): TINKER, SUSANNE CHRISTINE
• Application Number:
  US08/630,135
• Time in Patent Office: 678 Days
• Field of Search: 62/64, 62/259.2, 165/170, 165/174, 165/908, 165/104.33, 165/104.25, 361/698, 361/699, 361/719-721, 239/548, 239/557
• US Class Current: 62/64
• CPC Class Codes: F28F 13/02 by influencing fluid boundary boundary-layer control in general F15D
• CPC Class Codes: H05K 7/20345 Sprayers; Atomizers
• CPC Class Codes: Y10S 165/908 Fluid jets

Abstract

The apparatus includes a plate (10) having a first layer (12) and a second layer (14) opposed to the first layer (12). A first fluid distributing conduit (28) is disposed in the first layer (12) and a second fluid distributing conduit (28) is disposed in the second layer (14). A first nozzle housing (30) having a first aperture (36) is disposed in the first fluid distributing conduit (28) and a second nozzle housing (30) having a second aperture (36) is disposed in the second fluid distributing conduit (28).

Claims

1. An apparatus for spray-cooling an electronic module, the apparatus comprising:

a plate having a first layer and a second layer opposed to the first layer, the plate sized to be slidably mounted in a housing;

a first fluid distributing conduit disposed in the second layer;

a second fluid distributing conduit disposed in the second layer;

a first nozzle housing having a first aperture, the first nozzle housing disposed in the first fluid distributing conduit; and

a second nozzle housing having a second aperture, the second nozzle housing disposed in the second fluid distributing conduit.

2. The apparatus according to claim 1, further comprising:

a fluid inlet port disposed in the plate.

3. The apparatus according to claim 2, wherein the fluid inlet port supplies a fluid to the first and second conduits.

4. The apparatus according to claim 3, wherein the plate is disposed between a first circuit board and a second circuit board.

5. The apparatus according to claim 4, wherein the plate is disposed in a Versa Module Europe (VME) cage.

6. The apparatus according to claim 4, wherein a first nozzle is disposed in the first nozzle housing.

7. The apparatus according to claim 6, wherein the first nozzle comprises stainless steel.

8. The apparatus according to claim 6, wherein the first nozzle atomizes the fluid and discharges the atomized fluid through the first aperture.

9. The apparatus according to claim 8, wherein the atomized fluid is discharged at a substantially perpendicular angle to the first layer and onto the first circuit board.

10. The apparatus according to claim 3, wherein the fluid comprises a dielectric fluid.

11. The apparatus according to claim 1, wherein the electronic module is selected from the group consisting essentially of:

a passive component, a multi-chip module, and an electronic hybrid assembly.

12. The apparatus according to claim 1, wherein the plate comprises plastic.

13. The apparatus according to claim 1, wherein the plate comprises metal.

14. The apparatus according to claim 1, wherein cross-sections of the first fluid distributing conduit and the second fluid distributing conduit are selected from the group consisting essentially of:

circular, conical and rectangular.

15. The apparatus according to claim 1, wherein the first layer is fastened to the second layer.

16. The apparatus according to claim 1, wherein the first layer and the second layer are integrally formed.

17. An apparatus for spray-cooling an electronic module, the apparatus comprising:

a plate having a first layer and a second layer, the first layer having a first interior surface and a first exterior surface and the second layer having a second interior surface and a second exterior surface, the plate sized to be slidably mounted in a housing;

a first fluid distributing conduit formed in the first. interior surface;

a second fluid distributing conduit formed in the second interior surface and substantially aligned with the first fluid distributing conduit to form a manifold;

a first nozzle disposed in the first fluid distributing conduit, the first nozzle having a first receptacle end and a first spray end, the first spray end having a first aperture, the first receptacle end in communication with first fluid distributing conduit and the first spray end communication with the first exterior surface; and

a second nozzle disposed in the second fluid distributing conduit, the second nozzle having a receptacle end and a second spray end, the second spray end having a second aperture, the second receptacle end in communication with the second fluid distributing conduit the second spray end in communication with the second exterior surface,

the first receptacle end receiving a fluid from first fluid distributing conduit, the first spray end atomizing the fluid and discharging the atomized fluid through the first aperture, and the second receptacle end receiving the fluid from the second fluid distributing conduit, the second spray end atomizing the fluid and discharging the atomized fluid through the second.

18. A method for spray-cooling an electronic module, the method comprising the steps of:

providing a plate having a first layer and a second layer, the first layer having a first fluid distributing conduit and the second layer having a second fluid distributing conduit, the plate sized to be slidably mounted in a housing;

receiving a fluid by a first nozzle disposed in the first fluid distributing conduit, the first nozzle having a first aperture;

receiving the fluid by a second nozzle disposed second fluid distributing conduit, the second nozzle having second aperture;

discharging the fluid via the first aperture; and

discharging the fluid via the second aperture.