Structure for housing and heat sinking equipment pieces in an aeronautic or space vehicle

• US 6,215,658 B1
• Filed: 10/07/1999
• Issued: 04/10/2001
• Est. Priority Date: 10/07/1998
• Status: Expired due to Fees

• Current Assignee: Negesat Di BOER Fabrizio & CSNC
• Original Assignee: Negesat Di BOER Fabrizio & CSNC
• Inventors: Bodini, Amedeo
• Primary Examiner(s): Picard, Leo P.
• Assistant Examiner(s): CHERVINSKY, BORIS LEO
• Application Number:
  US09/414,372
• Time in Patent Office: 551 Days
• Field of Search: 361/679, 361/687, 361/688-695, 361/697, 361/698, 361/699, 361/704, 361/724, 361/730, 174/35.R, 174/16.1, 174/16.3, 165/80.3, 165/104.33, 165/122, 165/80.4, 165/185, 312/223.1, 312/223.2, 454/184
• US Class Current: 361/695
• CPC Class Codes: B64G 1/50 for temperature control
• CPC Class Codes: B64G 1/546 shielding electronic equipment
• CPC Class Codes: B64G 1/66 Arrangements or adaptations of apparatus or instruments, not otherwise provided for
• CPC Class Codes: H05K 7/20545 Natural convection of gaseous coolant; Heat transfer by conduction from electronic boards

Abstract

Structure for housing and heat sinking active equipment pieces (3; 2) in a space vehicle, comprising a constraining external container (1; 46) containing a cooling gas or a mixture of gases, means for mechanically holding said boxes (3; 2) into the container (1; 46) and a plurality of channels (32) or empty volumes (18), provided between the external surfaces of the active equipment boxes (3; 2) and the means for mechanically holding said boxes, for the circulation of the cooling gas or mixture of gases. (FIG. 4)

Claims

1. Structure for housing and heat sinking active equipment boxes in a space vehicle comprising:

a constraining external container having a plurality of internal walls, wherein said constraining external container contains a cooling gas or a mixture of cooling gases;

means for mechanically holding said boxes into said container, wherein said means for mechanically holding said boxes into said container are elements made of elastic-shock absorbing material, each said element being covered by at least one thermal conductive layer and

a plurality of empty volumes, provided between the external surfaces of said active equipment boxes and said means for mechanically holding said boxes, for the circulation of said cooling gas or mixture of cooling gases.

2. Structure according to claim 1, wherein said elements are applied on one or more faces of each box or between said one or more faces and the internal walls of said constraining external container.

3. Structure according to claim 1, wherein said elements have a shape substantially spherical.

4. Structure according to claim 1, wherein each of said elements have a cubic, parallelepiped or prismatic shape.

5. Structure according to claim 1, wherein said elements are pressed between said one or more face of the boxes and the internal walls of said constraining external container and are coupled together in such a way that they transfer the heat generated by said active equipment towards the walls of the external container.

6. Structure according to claim 1, wherein said elements are covered by a layer of aluminium.

7. Structure according to claim 1, wherein said elements are covered by a layer of copper, silver or gold.

8. Structure according to claim 1, wherein said constraining external container is pressurised and said elastic-shock absorbing material is a closed cell material.

9. Structure according to claim 8, wherein said elastic-shock absorbing material is polystyrene foam.

10. Structure according to claim 8, wherein said pressurised constraining external container comprises internally a forced ventilation system.

11. Structure according to claim 8, wherein said pressurised constraining external container contains a cooling liquid.

12. Structure according to claim 1, wherein said constraining external container is not pressurised and said elastic-shock absorbing material is an open cell material.

13. Structure according to claim 1, wherein said constraining external container is not pressurised and said elastic-shock absorbing material is a closed cell material covered or compressed by a material that prevents its expansion and therefore its explosion.

14. Structure according to claim 1, characterized in that the container is filled with said boxes and sealed in terrestrial environment and that said cooling gas or mixture of gases is air at ambient atmospheric pressure.

15. Structure for housing and heat sinking active equipment boxes in a space vehicle, said boxes being provided, on the external surface, with cooling fins forming empty volumes for the circulation of a cooling gas or mixture of cooling gases, comprising:

a constraining external container having a plurality of internal walls, containing said cooling gas or mixture of cooling gases; and

elements, for mechanically holding said boxes into tie container, made of a plurality of blocks of elastic-plastic shock absorbing material, rested against said cooling fins, having such dimensions that they can be compressed between any or all the cooling fins and an adjacent wall of the container, wherein each of said elements is covered by at least one thermal conductive layer.

16. Structure according to claim 15, moreover comprising means for forcing the circulation of said cooling gas or mixture of gases into said empty volume.

17. Structure according to claim 16, characterized in that said elements for forcing the circulation of said cooling gas or mixture of gases into said empty volumes comprise at least a fan operated by an electric motor.

18. Structure according to claim 15, characterized in that each box has polyhedral shape and has on a plurality of faces a plurality of heat sinks provided with cooling fins and a plurality of blocks made of an elastic-plastic shock absorbing material suitable for mechanically holding said box between the walls of the container or between other boxes.

19. Structure according to claim 15, characterized in that said blocks of elastic-plastic shock absorbing material comprise a first part made of rigid plastics glued to the cooling fins and a second part made of polystyrene coupled said first part and pressed against an internal wall of the container or against a block of an adjacent box.

20. Structure according to claim 15, characterized in that said elements for mechanically holding said boxes comprise some spacers made of an elastic-plastic shock absorbing material compressed between the internal walls of the container and elements made of a rigid material interposed between said boxes and said spacers.

21. Structure according to claim 15, characterized in that the container is filled with said boxes and sealed in terrestrial environment and that said cooling gas or mixture of gases is air at ambient atmospheric pressure.