Sumitomo Wiring Systems, Limited

Sumitomo Wiring System, Ltd.

Ryota Mori

Hiroshi Sato

Hisayoshi Yaita

Masami Suzuki

Maya Nakasuka

Kenta Sawai

Koki Kawamura

Tsutomu Sakata

Takashi Okuhara

Gousei Kobayashi

Akira Iijima

Yukari Hoshino

Provided is a battery wiring module according to which a load that acts on module-side terminals accompanying expansion or contraction of battery cells can be reduced. A housing includes a wire accommodating portion for accommodating wires, multiple terminal accommodating portions for accommodating module-side terminals, and first elastic joining portions that join the wire accommodating portion and the terminal accommodating portions in an elastically-deformable manner in the direction in which the battery cells are aligned.

Battery wiring module

Provided is a battery wiring module that allows module-side terminals to be easily mounted to a housing. The battery wiring module includes module-side terminals that are electrically connected to bus bars connecting battery terminals of a plurality of battery cells; wires with ends on one side connected to the module-side terminals; and a housing for accommodating the wires and the module-side terminals. The housing includes a plurality of terminal accommodating portions for accommodating the module-side terminals. The terminal accommodating portions include insertion ports into which the module-side terminals are partially inserted, and recesses that are located upstream of the insertion ports in a direction in which the module-side terminals are inserted and that are lower than terminal seat surfaces on which the module-side terminals can be placed.

Provided is a battery wiring module that can suppress a case in which a cover comes off. The battery wiring module includes a housing having a wire storage groove that stores multiple wires. The housing includes a first storage groove and second storage grooves that both extend in an X direction and are arranged side by side in a Y direction orthogonal to the X direction, and third storage grooves that are in communication with the first storage groove and the second storage grooves. The housing includes a first cover, second covers, and third covers that respectively cover the first storage groove, the second storage grooves, and the third storage grooves. The first cover has abutting portions that abut on outer surfaces on sides of the third covers opposite to the underside surfaces opposing the third storage grooves.

Provided is a battery wiring module according to which a load that acts on module-side terminals accompanying expansion or contraction of battery cells can be reduced. A housing includes: a wire accommodating portion for accommodating wires; multiple terminal accommodating portions for accommodating module-side terminals; and first elastic joining portions that join the wire accommodating portion and the terminal accommodating portions in an elastically-deformable manner in the direction in which the battery cells are aligned.

Battery wiring module including elastic joiners

Provided is a battery wiring module that can reduce damage of electric wires. The battery wiring module has: a module-side terminal electrically connected to a bus bar connecting battery terminals of a plurality of battery cells; an electric wire with one end side to which the module-side terminal is connected; and a housing for accommodating the electric wire and the module-side terminal. The housing has a terminal accommodating portion for accommodating the module-side terminal. The battery wiring module includes a partition wall portion that is provided such that the module-side terminal disposed on the bottom portion of the terminal accommodating portion is located between the partition wall portion and the bottom portion, and separates the module-side terminal and the electric wire.

Battery wiring module with partition wall separating module-side terminal and electric wire passing above partition wall

Provided is a battery wiring module that can hold busbars until they are connected to a secondary battery. A busbar is configured to connect battery terminals of a plurality of battery cells to each other, and has a recess portion that is recessed in a Z direction, which is a stack direction in which a housing is stacked on the battery cells. The battery wiring module includes a busbar holding portion configured to be inserted into the recess portions, and engage with and hold the busbar in the stack direction in which the housing is stacked on the battery cells.

Provided is a battery wiring module that can hold busbars until they are connected to a secondary battery. A busbar is configured to connect battery terminals of a plurality of battery cells to each other, and has a recess portion that is recessed in a Z direction, which is a stack direction in which a housing is stacked on the battery cells. The battery wiring module includes a busbar holding portion configured to be inserted into the recess portions, and engage with the busbar in an X direction, which is a direction in which the battery cells are lined up, so as to hold the busbar.

A battery wiring module that can improve workability when covers are to be opened. A cover includes a cover body portion coupled to a housing so as to be pivotable between a closed position and an open position, and a cover lock portion locked to a housing lock portion when the cover body portion is at the closed position. The housing lock portion includes an elastic piece located so as to face an outer surface of a fourth wall portion of the wiring housing portion, and is elastically deformable in a direction away from and a direction toward the fourth wall portion, and a lock protrusion that protrudes from the elastic piece in the direction toward the fourth wall portion. The cover lock portion is locked to the lock protrusion in the state of being inserted between the fourth wall portion and the elastic piece.

Provided is a battery wiring module that can suppress the occurrence of short circuits. The battery wiring module includes a module-side terminal that is configured to be electrically connected to a bus bar that connects battery terminals of a plurality of battery cells to each other, a wire having one end that is configured to be connected to the module-side terminal, and a housing that is configured to house the wire and the module-side terminal. The housing includes a terminal housing portion that is configured to house the module-side terminal, and a hole portion that is provided on a bottom portion of the terminal housing portion and interconnects an interior region and an exterior region of the terminal housing portion. The battery wiring module further includes a cover portion that has an insulating property and is configured to cover the hole portion.

Battery wiring module including a cover for an interconnecting portion

A housing is provided with a terminal accommodation portion accommodating a module-side terminal and having an opening through which the module-side terminal is introduced. The terminal accommodation portion includes a bottom portion and a third wall portion serving as an accommodation-side regulating portion that regulates displacement of the module-side terminal. A cover that seals the opening of the terminal accommodation portion includes first and second regulating wall portions serving as a cover-side regulating portion that regulates displacement of the module-side terminal at a different position from that of the bottom portion and the third wall portion.

Battery wiring module including a terminal accommodation portion

A battery wiring module that can keep an electrical wire from getting caught up when a cover portion is rotated and closed. In order to keep an electrical wire from sticking out from an electrical wire housing portion, a cover portion that partially covers an upper opening of the electrical wire housing portion is provided to a first side wall portion of an electrical wire housing portion with a hinge portion. The upper end of the first side wall portion is provided with a cover facing surface that faces the cover portion in a covering position in the vertical direction (a height direction Z), and a protruding portion that is adjacent to the cover facing surface and that protrudes higher than the cover facing surface.

A battery wiring module that can ensure an insulation distance between an electrode of a secondary battery and a conductive part arranged above the cover portion. A housing includes first and second divided housings that respectively include a bus bar housing portion that houses a bus bar, a first cover portion that is provided in one piece with the first divided housing and covers an opening of the bus bar housing portion of the first divided housing, and a second cover portion that is provided in one piece with the second divided housing and covers an opening of the bus bar housing portion of the second divided housing, the first and second cover portions being adjacent to each other. The first cover portion is provided with a tongue piece that extends from the first cover portion toward the second cover portion and overlaps the second cover portion in the opening direction of the bus bar housing portion.

A grommet () is mounted on a burred part () formed on an inner periphery of a through hole () formed on a panel (). The grommet () includes a small-diameter tubular portion (), a large-diameter tubular portion () and a coupling () connecting the small-diameter tubular portion () and the large-diameter tubular portion (). The small-diameter tubular portion () is held in close contact with an outer peripheral surface of the wire (), and the a large-diameter tubular portion () is fit on an outer peripheral side of the burred part () of the panel (). A rib () projects from an inner peripheral surface of the coupling () and covers at least a part of an inner peripheral surface side of the burred part () of the panel ().

Growing community of inventors

Mie, Japan

Ryota Mori