# US 2019/0170338 A1 · Lightning protection structure

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- Number: US 2019/0170338 A1
- Document ID: US20190170338A1
- Status: Published application
- Kind: A1
- Application number: 15/857,226
- Filed: 2017-12-28
- Published: 2019-06-06
- Earliest claimed: 2017-12-05
- Assignees: Industrial Technology Research Institute
- Applicants: Industrial Technology Research Institute
- Inventors: Hsiang-Cheng Kung; Hsien-Lin Hu; Hsin-Hwa Chen
- Web page: https://patentgrep.com/patent/US20190170338A1

## CPC

- F21V 29/15: Thermal insulation
- B64D 45/02: Lightning protectors; Static dischargers
- F21V 15/01: Housings, e.g. material or assembling of housing parts (F21V15/02 takes precedence {housings forming signs or letters G09F13/04})
- H02G 13/80: {Discharge by conduction or dissipation, e.g. rods, arresters, spark gaps}
- Y02B 10/30: Wind power
- F21V: FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- H02G: INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- Y02B: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS

## Abstract

A lightning protection structure is provided, which includes an insulation bottom layer, a graphite layer on the insulation bottom layer, an insulation shell on the graphite layer, and an electrically conductive component. A part of the electrically conductive component is disposed on the insulation shell, and another part of the electrically conductive component is in contact with the graphite layer.

## Claims

### Claim 1

A lightning protection structure, comprising:
an insulation bottom layer;
a graphite layer on the insulation bottom layer;
an insulation shell on the graphite layer; and
an electrically conductive component, wherein a part of the electrically conductive component is disposed on the insulation shell, and another part of the electrically conductive component is in contact with the graphite layer.

### Claim 2 (depends on 1)

The lightning protection structure as claimed in claim 1, wherein the graphite layer has a heat transfer coefficient of 900 W/m·K to 1500 W/m·K.

### Claim 3 (depends on 1)

The lightning protection structure as claimed in claim 1, wherein the graphite layer has an electrical conductivity if 4.5 ×102 S/m to 1.3 ×104 S/m.

### Claim 4 (depends on 1)

The lightning protection structure as claimed in claim 1, wherein the graphite layer has a thickness of 25 micrometers to 75 micrometers.

### Claim 5 (depends on 1)

The lightning protection structure as claimed in claim 1, wherein the graphite layer includes a hole.

### Claim 6 (depends on 5)

The lightning protection structure as claimed in claim 5, wherein the hole and the graphite layer have an area ratio of greater than 0:100 and less than or equal to 30:100.

### Claim 7 (depends on 1)

The lightning protection structure as claimed in claim 1, further comprising a metal layer wrapping the surface of the graphite layer.

### Claim 8 (depends on 1)

The lightning protection structure as claimed in claim 1, further comprising adhesive between the insulation bottom layer and the graphite layer, and between the insulation shell and the graphite layer.

### Claim 9 (depends on 1)

The lightning protection structure as claimed in claim 1, being conformally attached to an object, wherein the object is an aircraft, a building, or a wind turbine.

### Claim 10 (depends on 1)

The lightning protection structure as claimed in claim 1, wherein the graphite layer is connected to a power storage device or a discharge device.