Aircraft window assembly including an electromagnetic shield, a closing member including an electromagnetic shielding property, and an aircraft including an improved electromagnetic shield

• US 10,337,236 B2
• Filed: 08/21/2014
• Issued: 07/02/2019
• Est. Priority Date: 08/30/2013
• Status: Active Grant

• Current Assignee: Mitsubishi Aircraft Corporation (Mitsubishi Heavy Industries, Ltd.)
• Original Assignee: Mitsubishi Aircraft Corporation (Mitsubishi Heavy Industries, Ltd.)
• Inventors: Yokoi, Takashi
• Primary Examiner(s): Dinh, Tien Q
• Assistant Examiner(s): Giczy, Alexander V.
• Application Number:
  US14/465,007
• Publication Number:
  US 20150060603A1
• Time in Patent Office: 1,776 Days
• Field of Search: 5220453, 5220454, 5220455
• CPC Class Codes: B64C 1/1476 Canopies; Windscreens or similar transparent elements
• CPC Class Codes: B64C 1/1484 Windows B64C1/1492 takes precedence
• CPC Class Codes: B64C 1/1492 Structure and mounting of the transparent elements in the window or windscreen
• CPC Class Codes: B64D 45/02 Lightning protectors; Static dischargers in general H01T
• CPC Class Codes: E06B 2003/6258 U-shaped
• CPC Class Codes: E06B 3/62 of rubber-like elastic cleats
• CPC Class Codes: E06B 5/18 against harmful radiation against heat E06B5/16
• CPC Class Codes: H05K 9/0005 Shielded windows

Abstract

An aircraft window includes: a window body including window panels, and an electromagnetic shield layer laminated on the window panels; a window frame that is made of a conductive material, and that surrounds the window body; a rubber-based gasket provided with conductivity, the gasket being at least partially held between the window body and the window frame; and a conductive layer that is located between the window body and the gasket, and that brings the electromagnetic shield layer and the gasket into conduction with each other. The window frame includes a holding section that holds the window body. At least a part of the conductive layer extends to a portion of the window body facing an extending part of the holding section. Moreover, the conductive layer extends about an entire perimeter of the window body, and extends only partially along an interface between the window body and interposition member.

Claims

1. An aircraft window provided in an airframe of an aircraft, comprising:

a window body including a window panel having light transmissibility, and an electromagnetic shield layer laminated on the window panel;

a window frame that is made of a conductive material, and that surrounds the window body;

an interposition member that is formed by using a rubber-based material combined with a conductive material that provides the interposition member with conductivity, the interposition member being at least partially held between the window body and the window frame; and

a conductive layer that is located between the window body and the interposition member, and that brings the electromagnetic shield layer and the interposition member into conduction with each other,

wherein the window frame includes a holding section that holds the window body via the interposition member from an airframe outer side,

at least a part of the conductive layer extends to a portion of the window body facing an extending part of the holding section,

the conductive layer has a surface resistivity of 0.5 Ω

/sq or lower,

the conductive layer extends about an entire perimeter of the window body,

wherein the window body has an inner surface, an outer surface, a side surface immediately adjacent the inner surface, and an outwardly facing surface that connects the side surface and with the outer surface,

wherein the interposition member has an inner portion that extends along the inner surface of the window body, a side portion that extends along the side surface of the window body, and an outwardly facing portion that extends along the outwardly facing surface of the window body,

the conductive layer extends along an interface between the outwardly facing portion of the interposition member and the outwardly facing surface of the window body,

the conductive layer extends along an interface between the side portion of the interposition member and the side surface of the window body, and

the conductive layer does not extend along an interface between inner portion of the interposition member and the inner surface of the window body.

2. The aircraft window according to claim 1,

wherein the conductive layer is provided on the window body.

3. The aircraft window according to claim 1,

wherein the holding section comprises a first inclined surface inclined with respect to a thickness direction of the window body, and

the window body comprises a second inclined surface extending along the first inclined surface of the holding section.

4. The aircraft window according to claim 1,

wherein the conductive layer is formed by applying conductive paint to the window body.

5. The aircraft window according to claim 1,

wherein the window body further includes a second window panel bonded to the window panel via the electromagnetic shield layer.

6. The aircraft window according to claim 1, wherein the interposition member is provided with a volume resistivity of at least 5 Ω

cm.

7. The aircraft window according to claim 1, wherein the conductive layer is a water-soluble paint with conductivity.

8. The aircraft window according to claim 1, wherein the conductive layer is a water-soluble paint with conductivity which is applied to the window body.

9. An aircraft comprising the aircraft window according to claim 1.

10. A closing member for closing an opening portion formed in an article, comprising:

a closing member body including a closing panel, and an electromagnetic shield layer laminated on the closing panel;

a frame that is made of a conductive material, and that surrounds the closing member body;

an interposition member that is formed by using a rubber-based material combined with a conductive material that provides the interposition member with conductivity, the interposition member being at least partially held between the closing member body and the frame; and

a conductive layer that is located between the closing member body and the interposition member, and that brings the electromagnetic shield layer and the interposition member into conduction with each other, wherein the conductive layer has a surface resistivity of 0.5 Ω

/sq or lower,

wherein the frame includes a holding section that holds the closing member body via the interposition member from a side facing the electromagnetic shield layer,

at least a part of the conductive layer extends to a portion of the closing member body facing an extending part of the holding section,

the conductive layer extends about an entire perimeter of the closing member body,

wherein the closing member body has an inner surface, an outer surface, a side surface immediately adjacent the inner surface, and an outwardly facing surface that connects the side surface and with the outer surface,

wherein the interposition member has an inner portion that extends along the inner surface of the closing member body, a side portion that extends along the side surface of the closing member body, and an outwardly facing portion that extends along the outwardly facing surface of the closing member body,

the conductive layer extends along an interface between the outwardly facing portion of the interposition member and the outwardly facing surface of the closing member body,

the conductive layer extends along an interface between the side portion of the interposition member and the side surface of the closing member body, and

the conductive layer does not extend along an interface between inner portion of the interposition member and the inner surface of the closing member body.

11. The closing member according to claim 10, wherein the extending part of the holding section is inclined.

12. The closing member according to claim 10, wherein the interposition member is provided with a volume resistivity of at least 5 Ω

cm.

13. The closing member according to claim 10, wherein the conductive layer is a water-soluble paint with conductivity.

14. The closing member according to claim 10, wherein the conductive layer is a water-soluble paint with conductivity which is applied to the closing member body.