Electrical apparatus

Active Publication Date: 2012-11-29
GKN AEROSPACE SERVICES LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0019]For example, the laminate could be part of a lightning protection system for an aircraft, and the electrical element could be a sprayed conductive ground plane which is connectable to an aircraft earth by the ribbon connector. It is also envisaged that the present invention could find application in the automotive industry. For example, a laminated thermoplastic product for incorporation in a vehicle such as an electric vehicle could use the ribbon connector to simplify and improve the reliability of the electrical connection to the rest of the electrical system of the vehicle.
[0020]Because the thermoplastic material of the first end of the ribbon is the same as or is compatible with the thermoplastic material of the first dielectric layer and is the same as or is compatible with the thermoplastic mat

Problems solved by technology

For an aircraft, the in-flight formation of ice on the external surface of the aircraft is undesirable.
The ice destroys the smooth flow of air over the aircraft surface, increases drag and decreases the ability of an aerofoil to perform its intended function.
Also, built-up ice may impede the movement of a movable control su

Method used

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Examples

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Embodiment Construction

[0077]FIG. 1 is a plan view of an aircraft 1 having a wing 11 along the leading (forward) edge of which are positioned five wing slats 12. Each wing slat 12 incorporates an electrothermal ice protection system.

[0078]FIG. 2 is a diagrammatic perspective view of a demountable nose skin 13 of one of the wing slats 12 of FIG. 1. The configuration of the nose skin 13 may be generally the same as in EP-A-1,757,519 (GKN Aerospace) which discloses a wing slat having a demountable forward section comprising a nose skin.

[0079]The nose skin 13 comprises an erosion shield 14 and an electrically-powered heater 2.

[0080]The heater 2 comprises a heater blanket or mat 3 and a bundle of connectors 4 which connect the heater mat 3 to the power supply and control electronics of the aircraft 1.

[0081]The erosion shield 14 is generally rectangular and has a front surface 141 which is convexly curved and a rear surface 142 which is concavely curved. An apex 1411 of the front surface 141 provides the leading e

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Abstract

Electrical apparatus such as a heater (2) for an ice protection system for an aircraft (1) comprises a laminate such as a heater mat (3) and a connector (41-49). The laminate (3) comprises dielectric layers (50-58) and an electrical element such as a heater element (501), and each dielectric layer of the laminate comprises thermoplastic material. The connector (41-49) comprises a ribbon having first and second ends and a metal conductor (413, 423, 433). The ribbon comprises thermoplastic material and its first end (415, 425, 435, 445, 455, 465, 475, 485) is embedded in the laminate and is laminated to adjacent first and second ones of the dielectric layers (50-58) of the laminate. Because the thermoplastic material of the ribbon is the same as or is compatible with the thermoplastic material of the first and second dielectric layers, the formation of an undesirable discontinuity at the interfaces between the first end of the ribbon and the first and second dielectric layers is prevented. Thus, cracks are less likely to be initiated at the interfaces during the use of the electrical apparatus, and de-lamination is less likely to occur.

Description

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Claims

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Application Information

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Owner GKN AEROSPACE SERVICES LTD
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