# US 11,910,547 B2 · Protection device for electrical cabinet in aircraft

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- Number: US 11,910,547 B2
- Document ID: US11910547B2
- Status: Granted
- Kind: B2
- Application number: 17/421,931
- Filed: 2020-01-14
- Published: 2022-04-14
- Granted: 2024-02-20
- Earliest claimed: 2019-01-15
- Assignees: Safran Electrical & Power
- Applicants: Safran Electrical & Power
- Inventors: Benjamin Boisnier; Loîc Lemasson; Philippe Pierre Avignon
- Web page: https://patentgrep.com/patent/US11910547B2

## CPC

- H05K 5/0214: {with means preventing penetration of rain water or dust (semi-permeable membranes H05K5/0215, H05K5/0216)}
- B64D 13/00: Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space
- H05K 7/20563: {within sub-racks for removing heat from electronic boards}
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT

## Abstract

A protection device for an electrical cabinet is divided into a plurality of compartments, the protection device including a rain guard and an air manifold formed as an integral unit. The rain guard is designed to cover a section of an electrical cabinet and thus prevent water from falling on it. The air manifold includes at least one first pipe fluidically connected to a second pipe. Each first pipe intended to be connected to a corresponding air-circulation opening of a compartment, and the second pipe being intended to be connected to an air-circulation means in order thus to allow air to be circulated in the plurality of compartments. A cabinet is provided with such a protection device.

## Claims

### Claim 1

Protection device for an electrical cabinet comprising a rain guard and an air manifold formed as an integral unit, the rain guard comprising a panel adapted to cover a section of an electrical cabinet, and the air manifold comprising at least one first pipe fluidically connected, at a distal end, to a second pipe, each of the at least one first pipe adapted to be connected, at its proximal end, to an air-circulation opening of the electrical cabinet, and the second pipe adapted to be connected, to an air-circulation means, wherein each of the at least one first pipe passes through the panel.

### Claim 2 (depends on 1)

The protection device according to claim 1, wherein the integral unit is carried out by moulding or by additive printing.

### Claim 3 (depends on 1)

The protection device according to claim 1, further comprising at least one collar arranged to connect each of the at least one first pipe to the corresponding air-circulation opening.

### Claim 4 (depends on 3)

The protection device according to claim 3, wherein the at least one collar comprises a sleeve to receive the at least one first pipe and a flange around the sleeve arranged to be fastened on top of the electrical cabinet facing the air-circulation opening.

### Claim 5 (depends on 4)

The protection device according to claim 4, wherein each of the at least one first pipe is provided with a sealing ring at its proximal end, intended for being interposed between the at least one first pipe and the at least one collar.

### Claim 6 (depends on 5)

The protection device according to claim 5, wherein the panel includes bosses each comprising a hole to receive a screw to fasten the integral unit to the electrical cabinet.

### Claim 7 (depends on 1)

Electrical cabinet provided with a protection device according to claim 1, the electrical cabinet being divided into a plurality of compartments and each of the plurality of compartments comprising the air-circulation opening, and the protection device being mounted on top of the electrical cabinet, the panel of the rain guard covering at least one section of the electrical cabinet, and the at least one first pipes being connected respectively to the air-circulation openings of said compartments and the second pipe being fluidically connected to the air-circulation means.