Ppf1 design
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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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PPF1 Design

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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


Ppf1 design5

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


Ppf1 design7

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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