# US 12,120,836 B2 · Electrical component housing

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- Number: US 12,120,836 B2
- Document ID: US12120836B2
- Status: Granted
- Kind: B2
- Application number: 18/566,606
- Filed: 2021-06-08
- Published: 2024-08-08
- Granted: 2024-10-15
- Earliest claimed: 2021-06-08
- Assignees: Nissan Motor Co., Ltd.; Ampere S.A.S.
- Applicants: Nissan Motor Co., Ltd.; Ampere S.A.S.
- Inventors: Soichi Ishii; Rei Takahashi; Yasuyuki Kubota; Tadaaki Iiyama
- Web page: https://patentgrep.com/patent/US12120836B2

## CPC

- H05K 5/04: Metal casings
- H02M 7/003: {Constructional details, e.g. physical layout, assembly, wiring or busbar connections}
- H05K 7/1432: {specially adapted for power drive units or power converters}
- H05K 7/20927: {Liquid coolant without phase change}
- H05K 9/0039: {Galvanic coupling of ground layer on printed circuit board [PCB] to conductive casing (printed shielding conductors, ground planes or power planes for reduction of cross-talk or noise in printed circuits H05K1/0218)}
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P)

## Abstract

Provided is an electrical component housing for housing an electrical component. The electrical component housing includes a resin base portion allowing the electrical component to be mounted, a metal cover portion attached to the base portion and configured to cover the electrical component, a metal plate in contact with a bottom surface of the base portion in a manner of covering the bottom surface of the base portion. The electrical component housing also includes a conductive member provided in a through hole that penetrates the base portion in a thickness direction of the base portion, wherein the conductive member electrically connects a ground terminal of the electrical component and the metal plate.

## Claims

### Claim 1

An electrical component housing for housing an electrical component, the electrical component housing comprising:
a resin base portion allowing the electrical component to be mounted;
a metal cover portion attached to the base portion and configured to cover the electrical component;
a metal plate in contact with a bottom surface of the base portion in a manner of covering the bottom surface of the base portion; and
a conductive member provided in a through hole that penetrates the base portion in a thickness direction of the base portion, wherein
the conductive member electrically connects a ground terminal of the electrical component and the metal plate,
the base portion includes a coolant channel allowing a coolant for cooling the electrical component to flow,
the coolant channel passes below a position where the electrical component is mounted, and
the conductive member is integrally fastened, directly below the electrical component, with the electrical component and a conductor connected to the ground terminal of the electrical component.

### Claim 2 (depends on 1)

The electrical component housing according to claim 1, wherein
the base portion includes a base body having an opening that opens downward, and a resin plate that is joined to the base body in a manner of covering the opening,
the coolant channel is formed by sealing the opening with the resin plate, and
a joint portion between the base body and the resin plate is formed along the coolant channel.

### Claim 3 (depends on 2)

The electrical component housing according to claim 2, wherein
the coolant channel below the electrical component is formed with a protruding portion protruding from an inner peripheral surface of the opening toward a center in a width direction of the coolant channel,
the joint portion is formed on a lower surface of the protruding portion, and
the conductive member is provided in the vicinity of the protruding portion.

### Claim 4 (depends on 2)

The electrical component housing according to claim 2, wherein
the conductive member is bent in a crank shape to avoid the joint portion in the vicinity of the coolant channel below the electrical component.

### Claim 5 (depends on 2)

The electrical component housing according to claim 2, wherein
the electrical component includes a fin configured to be in contact with the coolant in the coolant channel,
a reinforcing member that crosses the coolant channel is erected upward from a bottom surface of the coolant channel in the coolant channel below the electrical component, and
the reinforcing member is lower than the coolant channel so that the coolant passes through a tip of the reinforcing member.

### Claim 6 (depends on 1)

The electrical component housing according to claim 1, wherein
the conductive member is provided near a central portion of the electrical component housing, and
the metal plate is fixed to the conductive member.