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PPF1 Design. Current work Altering radial layout and routing through PPF1 locations to ease problems of services routing Design of ‘busiest’ PPF1 region, i.e Powertapes, Powertape Cooling & Optical Fibre. PPF1 Design. Services routing from SCT EC to PPF1. PPF1 Design.

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Presentation Transcript
ppf1 design
PPF1 Design
  • Current work
    • Altering radial layout and routing through PPF1 locations to ease problems of services routing
    • Design of ‘busiest’ PPF1 region, i.e Powertapes, Powertape Cooling & Optical Fibre

CLRC

ppf1 design1
PPF1 Design
  • Services routing from SCT EC to PPF1

CLRC

ppf1 design2
PPF1 Design
  • Current scheme for PPF1 P/T & Opt.Fibre
    • Envelope

CLRC

ppf1 design3
PPF1 Design
  • Requirements
    • Support for up to 3 columns of 9 powertape PCBs
    • Support for optical fibre connections
    • Connector for fluid cooling
    • Routing for powertapes & cooling pipe & optical fibres (including straight through alignment fibres) + restraints for services into & out of region

From http://www-f9.ijs.si/~cindro/cables/forward/pp0fz.pdf

CLRC

ppf1 design4
PPF1 Design
  • Close Packing of PCBs
    • PCB packing to achieve minimum volume
      • Wedge arrangement for PCBs
      • Bond neighbouring PCBs (from same disc) = single large PCB
      • 3 & 2 connector long versions of PCB

CLRC

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PPF1 Design
  • 1st Concept
    • Idea
      • Use restraints at each end of PCB to clamp both powertape and conventional cable, then simply restrain both ends to locate PCB in desired location
    • Quick prototype
      • Quite difficult to get them to close pack as location and angle of PCB needs to be relatively accurate

CLRC

ppf1 design6
PPF1 Design
  • New concept
    • Relatively simple PCB restraints
      • Slot location for rear (no tools)
      • Sprung location for front (where there’s easy access)
      • Plate for other connections (optical fibre & cooling)

CLRC

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PPF1 Design
  • New Concept Continued…
    • All PCBs set-up in dummy housing then tapes clipped together
    • Excess tape taken up in spare space over TRT EC

Clipped further

down bundle

= little flexibility

CLRC

ppf1 design8
PPF1 Design

Sample tape = 250um

Actual tape up to = 400um

Sample stack lightly compressed = ~18mm

Actual tape estimated compress = ~29mm

Actual space = 31.5mm - 1 mm for restraint box

  • Excess Tape

CLRC

ppf1 design9
PPF1 Design
  • New Concept Continued…
    • Cooling & Optical Fibres

Region for

optical fibre

& cooling

CLRC

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