# US 12,119,460 B2 · Vehicular battery wiring module

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- Number: US 12,119,460 B2
- Document ID: US12119460B2
- Status: Granted
- Kind: B2
- Application number: 17/436,724
- Filed: 2020-03-10
- Published: 2022-06-16
- Granted: 2024-10-15
- Earliest claimed: 2019-03-13
- Assignees: Autonetworks Technologies, Ltd.; Sumitomo Wiring Systems, Ltd.; Sumitomo Electric Industries, Ltd.
- Applicants: Autonetworks Technologies, Ltd.; Sumitomo Wiring Systems, Ltd.; Sumitomo Electric Industries, Ltd.
- Inventors: Hideo Takahashi; Shinichi Takase
- Web page: https://patentgrep.com/patent/US12119460B2

## CPC

- H01M 10/425: {Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00)}
- H01M 50/249: specially adapted for aircraft or vehicles, e.g. cars or trains (constructional details of batteries specially adapted for electric vehicles B60L50/64)
- B60R 16/0207: {Wire harnesses}
- H01M 10/482: {for several batteries or cells simultaneously or sequentially}
- H01M 50/204: Racks, modules or packs for multiple batteries or multiple cells
- H01M 50/284: with incorporated circuit boards, e.g. printed circuit boards [PCB]
- H01M 50/569: Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals (battery terminal connectors with integrated measuring arrangements G01R31/364)
- H05K 1/0263: {High current adaptations, e.g. printed high current conductors or using auxiliary non-printed means; Fine and coarse circuit patterns on one circuit board (H05K1/0293 takes precedence)}
- H05K 1/028: {Bending or folding regions of flexible printed circuits (H05K1/0283 takes precedence)}
- H05K 1/189: characterised by the use of flexible or folded printed circuits
- H05K 3/28: Applying non-metallic protective coatings {(H05K3/0091 takes precedence; methods for intermediate insulating layers for build-up multilayer circuits H05K3/4673)}
- H05K 3/284: {for encapsulating mounted components (H05K1/185 takes precedence)}
- H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence)
- H01M 2200/103: Fuse
- H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane
- H05K 2201/10181: Fuse
- H05K 2201/10621: Components characterised by their electrical contacts
- Y02E 60/10: Energy storage using batteries
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- B60R: VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A flexible printed circuit board including an electronic component includes a flexible printed circuit board, an electronic component, a cover, and a restricting portion. The printed circuit board including an electrically conductive line. The electronic component is mounted on the flexible printed circuit board and joined to the electrically conductive line. The cover covers a joint between the electronic component and the electrically conductive line. The restricting portion is along an outer edge of the cover. The flexible printed circuit board includes a groove along the outer edge of the cover. The groove is defined by opposed groove side surfaces. One of the opposed groove side surfaces farther from the electronic component is defined as the restricting portion.

## Claims

### Claim 1

A vehicular battery wiring module to be attached to a battery module installed on a vehicle, the vehicular battery wiring module comprising:
a flexible printed circuit board including a base film, an electrically conductive line disposed on the base film, a cover film having an insulating property and covering the electrically conductive line, and a restricting portion;
a current limiter being mounted on the flexible printed circuit board to restrict flow of an excessive current through the electrically conductive line and including two terminals; and
a cover covering the current limiter, wherein
the electrically conductive line includes two contact pads,
the cover film includes a hole through which the contact pads are exposed,
the terminals of the current limiter are joined to the contact pads,
the cover covers a joint between the terminals of the current limiter and the contact pads,
the restricting portion extends along an outer edge of the cover,
the restricting portion is configured to restrict a flow of resin that forms the cover,
the restricting portion includes a groove defined by a first groove side surface and a second groove side surface that are opposed to each other,
the first groove side surface is farther from the current limiter, and
the groove is separated from a hole edge of the hole.

### Claim 2 (depends on 1)

The vehicular battery wiring module according to claim 1, wherein the cover includes a section disposed in the groove.

### Claim 3

A vehicular battery wiring module to be attached to a battery module installed on a vehicle, the vehicular battery wiring module comprising:
a flexible printed circuit board including a base film, an electrically conductive line disposed on the base film, a cover film having an insulating property and covering the electrically conductive line, and a restricting portion;
a current limiter being mounted on the printed circuit board to restrict flow of an excessive current through the electrically conductive line and including two terminals; and
a cover covering the current limiter, wherein
the electrically conductive line includes two contact pads,
the cover film includes a hole through which the contact pads are exposed,
the terminals of the current limiter are joined to the contact pads,
the cover covers a joint between the terminals of the current limiter and the contact pads,
the restricting portion extends along an outer edge of the cover,
the restricting portion is configured to restrict a flow of resin that forms the cover,
the restricting portion protrudes from a surface of the flexible printed circuit board farther than other portions of the flexible printed circuit board,
the restricting portion includes a restricting line disposed on the base film and covered with the cover film,
the restricting line is separated from a hole edge of the hole,
the restricting line is disposed not to reach the electrically conductive line,
the cover film includes a section bonded to the restricting line to form a multilayer portion of the flexible printed circuit board, and
the multilayer portion of the flexible printed circuit board is higher than other portions of the flexible printed circuit board.

### Claim 4 (depends on 1)

The vehicular battery wiring module according to claim 1, wherein the current limiter includes a chip fuse.

### Claim 5 (depends on 1)

The vehicular battery wiring module according to claim 1, wherein the electrically conductive line is electrically connected to an electrode of an energy storage component included in the battery module to detect a voltage of the energy storage component.

### Claim 6 (depends on 3)

The vehicular battery wiring module according to claim 3, wherein the current limiter includes a chip fuse.

### Claim 7 (depends on 3)

The vehicular battery wiring module according to claim 3, wherein the electrically conductive line is electrically connected to an electrode of an energy storage component included in the battery module to detect a voltage of the energy storage component.
