# US 12,191,648 B2 · Electrical connection box

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- Number: US 12,191,648 B2
- Document ID: US12191648B2
- Status: Granted
- Kind: B2
- Application number: 18/010,415
- Filed: 2021-06-09
- Published: 2023-08-10
- Granted: 2025-01-07
- Earliest claimed: 2020-06-26
- Assignees: Sumitomo Wiring Systems, Ltd.
- Applicants: Sumitomo Wiring Systems, Ltd.
- Inventors: Takashi Shiraki
- Web page: https://patentgrep.com/patent/US12191648B2

## CPC

- H02G 3/16: structurally associated with support for line-connecting terminals within the box
- B60R 16/0238: {Electrical distribution centers}
- B60R 16/0239: {Electronic boxes}
- H01R 9/18: Fastening by means of screw or nut
- H01R 9/2458: {Electrical interconnections between terminal blocks}
- H01R 2201/26: for vehicles
- H02G: INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS

## Abstract

A first electrical connection box includes a housing, a holder (40) that is provided inside the housing, and holds an electrical component (51) to which a first wire (21) is to be electrically connected; and a terminal block (60) attached to the holder (40). The terminal block (60) includes a terminal support base (61) attached to the holder (40), and a busbar (62) supported on the terminal support base (61). The busbar (62) includes a planar first connection surface (84), and a planar second connection surface (86) to which a second wire (22) is to be electrically connected. Also, the first electrical connection box further includes a relay busbar (90) that is provided inside the housing, and includes a third connection surface (97) that is electrically connected to the first connection surface (84), and a fourth connection surface (99) that is electrically connected to the electrical component (51).

## Claims

### Claim 1

An electrical connection box comprising:
a housing;
a holder that is provided inside the housing, and holds an electrical component to which a first wire is to be electrically connected; and
a terminal block attached to the holder,
wherein the terminal block includes a terminal support base attached to the holder, and a busbar supported on the terminal support base,
the busbar includes a planar first connection surface, and a planar second connection surface to which a second wire is to be electrically connected, the second wire being different from the first wire, and
the electrical connection box further comprises a relay busbar that is provided inside the housing, and includes a third connection surface that is electrically connected to the first connection surface, and a fourth connection surface that is electrically connected to the electrical component.

### Claim 2 (depends on 1)

The electrical connection box according to claim 1,
wherein when a direction perpendicular to the first connection surface is defined as a first direction, the second connection surface is perpendicular to a second direction that intersects with the first direction.

### Claim 3 (depends on 1)

The electrical connection box according to claim 1,
wherein when a direction perpendicular to the third connection surface is defined as a third direction, the fourth connection surface is perpendicular to a fourth direction that intersects with the third direction.

### Claim 4 (depends on 1)

The electrical connection box according to claim 1,
wherein the terminal block includes a first bolt that penetrates the first connection surface and the third connection surface.

### Claim 5 (depends on 1)

The electrical connection box according to claim 1,
wherein the terminal block includes a second bolt that penetrates the second connection surface.