Electronic packaging and method of packaging

• US 6,242,691 B1
• Filed: 02/03/1999
• Issued: 06/05/2001
• Est. Priority Date: 02/03/1999
• Status: Expired due to Term

• Current Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Original Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Inventors: Janssen, Michael, Wilson, Mark A., Reese, Kenneth C., Balsley, John M., McSorley, Lauren J.
• Primary Examiner(s): Reichard, Dean A.
• Assistant Examiner(s): WALKENHORST, DAVID W
• Application Number:
  US09/243,767
• Time in Patent Office: 853 Days
• Field of Search: 174/35.MS, 174/35.R, 174/52.1, 174/145, 174/167, 361/678, 361/690, 361/695, 361/816, 361/818
• US Class Current: 174/359
• CPC Class Codes: H05K 5/0021 Side-by-side or stacked arrangements
• CPC Class Codes: H05K 7/20145 Means for directing air flow, e.g. ducts, deflectors, plenum or guides
• CPC Class Codes: H05K 9/0043 being flexible containers, e.g. pouch, pocket, bag

Abstract

Protective packaging for electronic equipment includes an expanded foam body with cavities for components, air ducts, and the like. An outer EMI bag surrounds the equipment containing foam body. The assembly is enclosed within a deformable exterior case which includes front and rear covers, air filters, or fans. The cases are modular and stackable. Integrally formed connectors electrically couple adjacent cases together. The connectors couple the EMI bags together to form a common shield.

Claims

1. Electronic packaging comprising:

a foam support body wherein at least one internal, electrical unit receiving volume is defined;

a separate electromagnetic shield which defines an internal volume for receipt of the body; and

a separate, non-conductive, exterior, deformable in part, moisture resistant case which defines an internal region for receipt of the shield and the body wherein each of the body, the shield and the case define connector openings;

wherein the connector openings are aligned with one other on opposing sides of the electronic packaging when the body, shield and case are combined;

wherein a first electrical connector is positioned in one of the aligned connector openings and a second electrical connector is located in the other of the aligned connector openings; and

wherein the first and second electrical connectors are coupled to one another by a spring loaded shaft so that one of the first and second electrical connectors forms a floating interface connector movable from an extended operable position to a retracted position inside the case where the floating interface connector is protected from damage.

2. Electronic packaging as in claim 1 wherein the floating interface connector, is extendable, at least in part, through the connector opening from the retracted position to the operable position.

3. Electronic packaging as in claim 1 wherein the shield comprises an EMI conductive bag.

4. Electronic packaging as in claim 3 wherein the bag is supported, at least in part, by access opening defining rigid conductive elements.

5. Electronic packaging as in claim 1 wherein the body defines at least one air flow path.

6. Electronic packaging as in claim 1 wherein the body defines at least one cable receiving path.

7. Electronic packaging as in claim 6 wherein electrical wiring extends along the path.

8. Electronic packaging as in claim 7 wherein electrical connectors positioned in the aligned openings are couplable to electrical wiring.

9. Electronic packaging as in claim 8 wherein the first and second electrical connectors includes a connector block with a plurality of conductor receiving openings.

10. Electronic packaging as in claim 9 wherein the connector receiving openings are enclosed by the shield.

11. Electronic packaging as in claim 8 wherein at least one of the first and second connectors permits a second substantially identical case can be coupled thereto so that a single shield is formed therearound.

12. Electronic packaging as in claim 1 which includes an electro-magnetic radiation excluding end screen carried by the case adjacent to an air intake thereof.

13. Electronic packaging as in claim 12 which includes an air filter located adjacent to the end screen.

14. Electronic packaging as in claim 13 which includes an air intake device located adjacent to the air filter.

15. Electronic packaging as in claim 14 wherein the filter is sized to, in combination with the air intake device, provide low velocity air flow through the filter in inhibit an inflow of airborne moisture through the filter.

16. Electronic packaging as in claim 1 wherein the case comprises molded plastic which is deformable a predetermined amount to absorb mechanical shocks.

17. Electronic packaging as in claim 1 wherein the receiving volume has a shape for receipt and support of a unit in the absence of brackets and shock absorbers.

18. Electronic packaging as in claim 1 wherein the shield and the case define second connector openings aligned with one other on opposing sides of the electronic packaging when the body, shield and case are combined;

wherein an electrical connector is positioned in one of the second, aligned connector openings and another electrical connector is located in the other of the second, aligned connector openings; and

wherein the electrical connectors are coupled by a spring loaded shaft so that one of the electrical connector elements is a floating interface connector movable from an operable position to a position inside the case where the floating interface connector is protected from damage.

19. Electronic packaging as in claim 1 wherein a first type of connector is positioned in one aligned connector opening and a second, different, connector is located in the other aligned connector opening.

20. Electronic packaging as in claim 19 wherein the electrical connectors are each surrounded by the shield, whereupon if a first type of connector, carried by one case, engages a second type of connector carried by another case, the respective shields contact one another enclosing the connectors and forming a shield engagement region.

21. Electronic packaging as in claim 1 wherein the spring loaded shaft has an end retained in a hollow sleeve adjacent a cylindrical spring.

22. Electronic packaging as in claim 21 wherein the spring retracts the the floating interface connector.

23. Electronic packaging as in claim 21 wherein the sleeve attaches the end to one of the connectors.

24. Electronic packaging as in claim 21 wherein the shaft is displaceble axially to space the connectors apart from one another and movable angularly to lock a first type of connector to a second type.

25. Electronic packaging as in claim 19 wherein the first type of connector carries a first type of contact and wherein the second type of connector carries a second type of contact.