AIRCRAFT ANTENNA COVER, AIRCRAFT MEMBER COVER, AIRCRAFT, AND RAIN EROSION BOOT FOR AIRCRAFT

• US 20160031568A1
• Filed: 03/27/2015
• Published: 02/04/2016
• Est. Priority Date: 07/30/2014
• Status: Active Grant

• Current Assignee: Mitsubishi Aircraft Corporation (Mitsubishi Heavy Industries, Ltd.)
• Original Assignee: Mitsubishi Aircraft Corporation (Mitsubishi Heavy Industries, Ltd.)
• Inventors: YOKOI, Takashi
• Granted Patent: US 9,896,220 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: B64C 1/36 adapted to receive antennas or radomes
• CPC Class Codes: B64D 45/02 Lightning protectors; Static dischargers in general H01T
• CPC Class Codes: H01Q 1/281 Nose antennas
• CPC Class Codes: H01Q 1/42 Housings not intimately mechanically associated with radiating elements, e.g. radome
• CPC Class Codes: H01Q 1/50 Structural association of antennas with earthing switches, lead-in devices or lightning protectors

Abstract

An antenna cover of an aircraft including: a cover that protects an antenna mounted in the aircraft; a conductive layer having conductivity that is provided on an outer side of the cover; and a rain erosion boot that covers one region of the conductive layer, wherein the rain erosion boot includes a main material having an insulating property, is given conductivity, and is grounded to an airframe via the conductive layer, or the rain erosion boot includes a main material having an insulating property, and is given hydrophilicity.

Claims

1. An antenna cover of an aircraft comprising:

a cover that protects an antenna mounted in the aircraft;

a conductive layer having conductivity that is provided on an outer side of the cover; and

a rain erosion boot that covers one region of the conductive layer,

wherein the rain erosion boot includes a main material having an insulating property, is given conductivity, and is grounded to an airframe via the conductive layer, or

the rain erosion boot includes a main material having an insulating property, and is given hydrophilicity.

2. The antenna cover of an aircraft according to claim 1,

wherein the rain erosion boot includes the main material having an insulating property, is given conductivity, and is grounded to the airframe via the conductive layer.

3. The antenna cover of an aircraft according to claim 2,

wherein surface resistivity of the rain erosion boot is 0.5 MΩ

/sq to 15 MΩ

/sq.

4. The antenna cover of an aircraft according to claim 2,

wherein the conductive layer has

a portion that is covered with the rain erosion boot, and

a portion where a lightning protection member through which a current of lightning striking the cover flows is arranged, and

the conductive layer is grounded to the airframe via a fastener that penetrates the conductive layer in a thickness direction and fastens the lightning protection member to the cover.

5. The antenna cover of an aircraft according to claim 4,

wherein the lightning protection member is a strip made of metal.

6. The antenna cover of an aircraft according to claim 1,

wherein the rain erosion boot includes the main material having an insulating property, and is given hydrophilicity.

7. The antenna cover of an aircraft according to claim 2,

wherein the antenna is mounted at a front end of the airframe,

the cover is formed in a bowl shape so as to cover the antenna from a front side,

the conductive layer is applied to an entire outer surface of the cover, and

the rain erosion boot is provided in a predetermined region located at a front end of the cover.

8. The antenna cover of an aircraft according to claim 6,

wherein the antenna is mounted at a front end of the airframe,

the cover is formed in a bowl shape so as to cover the antenna from a front side,

the conductive layer is applied to an entire outer surface of the cover, and

the rain erosion boot is provided in a predetermined region located at a front end of the cover.

9. The antenna cover of an aircraft according to claim 1,

wherein the rain erosion boot comprises a resin as the main material.

10. The antenna cover of an aircraft according to claim 9,

wherein the rain erosion boot is formed of a plurality of polymer layers having different characteristics.

11. The antenna cover of an aircraft according to claim 1,

wherein the conductive layer has a thickness of 0.31 to 0.36 mm, and the rain erosion boot has a thickness of 0.1 mm to 1 mm.

12. The antenna cover of an aircraft according to claim 11,

wherein the rain erosion boot has a thickness of 0.1 mm to 0.3 mm.

15. An aircraft comprising the antenna cover according to claim 1.

13. A member cover of an aircraft comprising:

a cover that protects a member mounted in the aircraft; and

a rain erosion boot that covers an outer side of the cover,

wherein the rain erosion boot includes a main material having an insulating property, and is given conductivity or hydrophilicity.

14. The member cover of an aircraft according to claim 13,

wherein the member is a lighting device emitting light, and

the light emitted from the lighting device is transmitted through the cover.

16. An aircraft comprising the member cover according to claim 13.

17. A rain erosion boot for an aircraft that is provided on an outer side of a cover that protects a member mounted in the aircraft,

wherein the rain erosion boot includes a main material having an insulating property, and is given conductivity or hydrophilicity.