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Conductive structure between composite material structural members and conductive processing method

A composite material and processing method technology, applied in the field of conductive structure and conductive processing between composite material structural parts, to achieve the effects of low impedance, convenient maintenance, and simple installation

Active Publication Date: 2020-12-11
CHINA HELICOPTER RES & DEV INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing helicopter structures often adopt rivet lap joints when adopting electric lap joint technology, which does not really realize the conduction between composite structural parts

Method used

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  • Conductive structure between composite material structural members and conductive processing method
  • Conductive structure between composite material structural members and conductive processing method
  • Conductive structure between composite material structural members and conductive processing method

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] Such as figure 1 As shown, the conductive path is composed of a first copper mesh 14 , a copper sheet 5 , a washer 2 , a fastener 1 , a bracket nut 8 , a U-shaped copper sheet 12 , a conductive adhesive 10 , and a second copper mesh 11 .

[0042] The first composite material structural part 13 is laid with copper sheet 5 and ECS0027 copper mesh 14 under the outermost layer of glass cloth 3, and a layer of ECS0004.24 structural adhesive f...

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Abstract

The invention belongs to the field of machine body lightning protection, and discloses a conductive structure between composite material structural members and a conductive processing method. A coppernet and a copper sheet are laid in the composite material structure, a fastener and a supporting plate nut are reasonably utilized to achieve structural circuit conduction, and the problem that circuit conduction cannot be achieved between composite material structural parts can be solved. The current transmission path is simple, direct and effective, and the problem of low conductive efficiencybetween the composite material and the aluminum structural member is solved; the application range is wide, and the method can be applied to any part, needing to realize circuit conduction, between composite material structures containing glass fibers, carbon fibers, aluminum honeycombs and paper honeycombs.

Description

technical field [0001] The invention belongs to the field of lightning protection for a machine body, and in particular relates to a conductive structure between composite material structural parts and a conductive treatment method. Background technique [0002] In order to prevent personnel from being injured by electric shocks in flight and on the ground, reduce the level of interference caused by repeated contact between parts with different electromotive forces, prevent the accumulation of electrostatic charges, provide a low impedance path to reduce lightning hazards, and avoid mechanical failures or accidents caused by arcs Fire, reduce the impact of corona discharge effects, ground through low-impedance paths for effective shielding and radiation protection, require all parts that make up the helicopter skin or casing (fuselage, vertical tail, horizontal stabilizer, landing gear...) A complete electrical bonding wire that can transmit high energy during lightning stri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01R4/30B64D45/02
CPCH01R4/30H01R4/304H01R4/305B64D45/02
Inventor 代丽丽邹蒙刘喆曲志森彭世伟
Owner CHINA HELICOPTER RES & DEV INST
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