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LIGHTNING PROTECTION ARRANGEMENT FOR AN ELECTRONIC UNIT

  • US 20110259999A1
  • Filed: 01/28/2011
  • Published: 10/27/2011
  • Est. Priority Date: 06/03/2009
  • Status: Active Grant
First Claim
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1. A lightning protection arrangement for an aircraft for protecting an electronic unit from lightning, which arrangement is capable, during a lightning strike, of diverting a lightning current onto an electrically conductive retaining structure of the fuselage of the aircraft, wherein the electronic unit is attached to an aerodynamic fairing outside the aircraft, the lightning protection arrangement comprising:

  • a) an electrically conductive mounting plate which is arranged on an outer side of a CFRP sandwich panel of the aerodynamic fairing;

    b) an electrically conductive rear plate which is arranged on an inner side of the CFRP sandwich panel of the aerodynamic fairing and is connected in an electrically conductive manner to the mounting plate;

    c) electrically conductive and detachable attachment means which is provided to attach the electronic unit to the body, and by which an electrically conducting connection is realised between the electronic unit and the mounting and rear plates arranged on the CFRP sandwich panel, such that during a lightning strike, a low-resistance current path is provided for the lightning current from the electronic unit via the mounting plate and the rear plate, from which current path the lightning current is diverted onto the electrically conductive retaining structure of the lightning protection arrangement which is connected to the mounting plate via further electrically conductive and detachable attachment means.

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