# US 2023/0406243 A1 · Electromagnetic compatibility (emc) shielded vehicle electrical modules

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- Number: US 2023/0406243 A1
- Document ID: US20230406243A1
- Status: Published application
- Kind: A1
- Application number: 17/844,332
- Filed: 2022-06-20
- Published: 2023-12-21
- Earliest claimed: 2022-06-20
- Assignees: Ford Global Technologies, LLC
- Applicants: Ford Global Technologies, LLC
- Inventors: Mohammed Michael Baydoun; Leena Shah; Robert Vitali
- Web page: https://patentgrep.com/patent/US20230406243A1

## CPC

- B60R 16/023: for transmission of signals between vehicle parts or subsystems
- H02G 3/08: Distribution boxes; Connection or junction boxes
- H05K 9/0026: {integrally formed from metal sheet}
- H05K 9/0045: {being rigid plastic containers having a coating of shielding material}
- H05K 9/0047: {being rigid plastic containers having conductive particles, fibres or mesh embedded therein}
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- H02G: INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS

## Abstract

Electrical module designs are disclosed for motor vehicles. An exemplary electrical module (e.g., a junction box, etc.) may include a polymer-based housing assembly and an EMC shield that is adapted to influence an electromagnetic compatibility of the polymer-based housing assembly. The EMC shield may include a metallic foil, a metallic filler, a metallic coating, or combinations thereof.

## Claims

### Claim 1

A vehicle electrical module, comprising:
a housing assembly including a polymer-based substrate and an electromagnetic compatibility (EMC) shield adapted to influence an electromagnetic compatibility (EMC) of the polymer-based substrate,
wherein the vehicle electrical module is a high voltage junction box.

### Claim 2

(canceled)

### Claim 3 (depends on 1)

The vehicle electrical module as recited in claim 1, wherein, together, the polymer-based substrate and the EMC shield establish a wall of the housing assembly.

### Claim 4 (depends on 3)

The vehicle electrical module as recited in claim 3, wherein the wall is part of a cover of the housing assembly.

### Claim 5 (depends on 3)

The vehicle electrical module as recited in claim 3, wherein the wall is part of a base of the housing assembly.

### Claim 6 (depends on 3)

The vehicle electrical module as recited in claim 3, wherein the wall is an interior facing wall of the housing assembly.

### Claim 7 (depends on 1)

The vehicle electrical module as recited in claim 1, wherein the EMC shield includes a metallic foil that is secured to the polymer-based substrate.

### Claim 8 (depends on 1)

The vehicle electrical module as recited in claim 1, wherein the EMC shield includes a metallic filler provided within the polymer-based substrate.

### Claim 9 (depends on 1)

The vehicle electrical module as recited in claim 1, wherein the EMC shield includes a metallic foil that is secured to the polymer-based substrate and a metallic filler provided within the polymer-based substrate.

### Claim 10 (depends on 1)

The vehicle electrical module as recited in claim 1, wherein the EMC shield includes a metallic coating applied to the polymer-based substrate.

### Claim 11 (depends on 10)

The vehicle electrical module as recited in claim 10, wherein the metallic coating includes an aluminum powder paint.

### Claim 12 (depends on 1)

The vehicle electrical module as recited in claim 1, wherein the EMC shield includes a metallic coating applied to the polymer-based substrate and a metallic foil positioned over the metallic coating.

### Claim 13 (depends on 1)

The vehicle electrical module as recited in claim 1, wherein the EMC shield includes a metallic filler provided within the polymer-based substrate and a metallic coating applied to the polymer-based substrate.

### Claim 14 (depends on 1)

The vehicle electrical module as recited in claim 1, comprising an electronic housed within an interior of the housing assembly.

### Claim 15

A motor vehicle, comprising:
an electrical module including:
a first polymer-based housing section;
a second polymer-based housing section;
an electronic housed within an interior established by the first and second polymer-based housing sections; and
an electromagnetic compatibility (EMC) shield adapted to increase an electromagnetic compatibility (EMC) of the electrical module,
wherein the electrical module is a high voltage junction box.

### Claim 16

(canceled)

### Claim 17 (depends on 15)

The motor vehicle as recited in claim 15, wherein the EMC shield includes a metallic foil.

### Claim 18 (depends on 15)

The motor vehicle as recited in claim 15, wherein the EMC shield includes a metallic filler or a metallic coating.

### Claim 19 (depends on 15)

The motor vehicle as recited in claim 15, wherein the EMC shield includes a metallic foil and either a metallic filler or a metallic coating.

### Claim 20 (depends on 15)

The motor vehicle as recited in claim 15, wherein the electronic is a relay, a fuse, or a bus bar.

### Claim 21

A motor vehicle, comprising:
an electrical device;
a high voltage junction box configured to distribute electrical power to the electrical device, wherein the high voltage junction box includes:
a first polymer-based housing section;
a second polymer-based housing section;
an electronic housed within an interior established by the first and second polymer-based housing sections; and
an electromagnetic compatibility (EMC) shield adapted to increase an electromagnetic compatibility (EMC) of the high voltage junction box,
wherein the EMC shield includes a metallic foil that is secured to a polymer-based substrate of the first polymer-based housing section for the second polymer-based housing section, and a metallic filler provided within a resin of the polymer-based substrate.

### Claim 22 (depends on 21)

The motor vehicle as recited in claim 21, wherein the high voltage junction box includes a connector mounted to the first polymer-based housing section or the second polymer-based housing section, the connector establishing a connection point for connecting a cable of the electrical device to the high voltage junction box.
