# US 12,184,052 B2 · Circuit assembly and electrical junction box

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- Number: US 12,184,052 B2
- Document ID: US12184052B2
- Status: Granted
- Kind: B2
- Application number: 17/811,388
- Filed: 2022-07-08
- Published: 2023-01-12
- Granted: 2024-12-31
- Earliest claimed: 2021-07-08
- Assignees: Sumitomo Wiring Systems, Ltd.
- Applicants: Sumitomo Wiring Systems, Ltd.
- Inventors: Shinya Hamano; Yoshikazu Sasaki; Junya Aichi; Jun Ikeda
- Web page: https://patentgrep.com/patent/US12184052B2

## CPC

- H02G 5/04: Partially-enclosed installations, e.g. in ducts and adapted for sliding or rolling current collection
- H05K 1/0269: {for visual or optical inspection}
- H02G 3/16: structurally associated with support for line-connecting terminals within the box
- H05K 2201/09918: Optically detected marks used for aligning tool relative to the PCB, e.g. for mounting of components
- H05K 2201/09936: Marks, inscriptions, etc. for information
- 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

The present disclosure enables a cost reduction for a circuit assembly including electronic components. A circuit assembly includes: an electronic component; a conductive plate to which the electronic component is connected; and a holding member that holds the conductive plate. The conductive plate includes a mounting portion on which the electronic component is mounted, and a fiducial mark for positioning and mounting the electronic component. The fiducial mark is constituted by a hole formed in the conductive plate.

## Claims

### Claim 1

A circuit assembly comprising:
an electronic component;
a conductive plate to which the electronic component is connected; and
a holding member that holds the conductive plate,
wherein the conductive plate includes a mounting portion on which the electronic component is mounted, and a fiducial mark for positioning and mounting the electronic component, and
the fiducial mark is constituted by a hole formed in the conductive plate; and wherein the holding member includes a base portion that is plate-shaped and is provided along the conductive plate, and the base portion includes an opening that exposes a region that includes the hole and an area surrounding the hole.

### Claim 2 (depends on 1)

The circuit assembly according to claim 1, wherein the holding member is made of a resin, and
the conductive plate and the holding member are formed as one piece with the conductive plate partially buried in the holding member.

### Claim 3 (depends on 2)

The circuit assembly according to claim 2, wherein a plurality of conductive plates are held by the holding member, and
each of the conductive plates is provided with a hole.

### Claim 4 (depends on 2)

The circuit assembly according to claim 2, wherein the conductive plate is provided with a plurality of holes.

### Claim 5 (depends on 1)

The circuit assembly according to claim 1, wherein a plurality of holes serve as fiducial marks and are provided while being distanced from each other.

### Claim 6 (depends on 5)

The circuit assembly according to claim 5, wherein a plurality of conductive plates are held by the holding member, and
a first conductive plate has one of the holes serving as the fiducial marks, and
a second conductive plate has another hole serving as the fiducial mark.

### Claim 7 (depends on 1)

An electrical junction box comprising:
the circuit assembly according to claim 1; and
a cover that covers the circuit assembly.