Abstract: A busbar module to be attached to a battery assembly in which a plurality of single cells are stacked, the busbar module includes a main line circuit body formed of a flexible substrate having a first wiring pattern and disposed to extend along a stacking direction of the plurality of single cells, a branch line circuit body formed of a flexible substrate having a second wiring pattern and extending so as to branch from the main line circuit body, the second wiring pattern being electrically connected to the first wiring pattern, a busbar connected to an electrode of each of the plurality of single cells, an electronic component attached to a mounting surface of the branch line circuit body so as to connect the second wiring pattern and the busbar, and a holder configured to hold the busbar and be extendable and contractible along the stacking direction.

Abstract: A wiring component includes a circuit conductor for each of bus bars and is formed to be flexible and flat. The wiring component includes a wiring main body that runs parallel in an arrangement direction of a battery cells, a wiring intersection body that is connected to one end of the wiring main body in the arrangement direction so as to intersect the arrangement direction on the same plane and protrudes from one side end of the wiring main body along the arrangement direction, and a wiring branch body that is branched from the one side end of the wiring main body for each of the plurality of bus bars, and a bent region provided at one end of the wiring main body is bent to change an insertion/removal direction of a connector attached to a distal end of the wiring intersection body with respect to a mating connector.

Abstract: The bus bar module includes a circuit body composed of a flexible substrate provided with a circuit wiring. The circuit body includes a belt-shaped main body extending along a predetermined direction and a plurality of bus bar portions arranged at a distance in an extending direction of the main body. At least a part of the bus bar portions is arranged to overlap with the main body.

Abstract: In a first wiring material and a second wiring material of a connection structure of wiring materials, in a fastened state in which a shaft part of a fastening member is inserted through a first through hole for fastening and a second through hole for fastening and a second electric conductor is fastened to a first electric conductor by the fastening member, a first finger touch prevention part is inserted through a through hole for a second finger touch prevention part, a second finger touch prevention part is inserted through a through hole for the first finger touch prevention part, and a first connection surface and a second connection surface are brought into contact with each other in a plate thickness direction to be electrically connected.

Abstract: A busbar module that can be brought into a folded state and a busbar module attachment method. The busbar module includes a case configured to be installed on the battery assembly, a plurality of busbars supported by the case and configured to be respectively connected to single cells, and a routing material electrically connected to the busbars and routed in the case. The case includes a plurality of divided cases that are divided in a direction in which the single cells are arranged, and a connection structure connecting adjacent divided cases of the divided cases with each other. The connection structure displaces the divided cases into a folded state in which the divided cases are rotated so that adjacent divided cases overlap each other and an expanded state in which the divided cases are situated on a same plane.

Abstract: The present disclosure relates to a busbar module to be attached to a battery assembly in which a plurality of single cells are stacked. The busbar module includes a main line circuit body including a plurality of electric wires, and disposed to extend along a stacking direction of the plurality of single cells, a relay circuit body including a circuit board having a wiring pattern, the wiring pattern being electrically connected to at least one of the electric wires extending to branch from the main line circuit body, a busbar connected to an electrode of each of the plurality of single cells, an electronic component attached to a mounting face of the relay circuit body to connect the wiring pattern to the busbar, and a holder holding the busbar and extendable and contractible along the stacking direction.

Abstract: A battery module includes battery cells being arrayed, a cell-monitoring unit configured to monitor each battery cell of the battery module, a battery cell side circuit board electrically connected to the battery cells, and a cell-monitoring unit side circuit board electrically connected to the cell-monitoring unit and the battery cell side circuit board. The battery cell side circuit board and the cell-monitoring unit side circuit board are connected to each other and voltage detection lines on the battery cell side circuit board and a voltage detection lines on the cell-monitoring unit side circuit board are electrically connected. The electric circuits of the voltage detection lines on the battery cell side circuit board are aligned in order of their electric potentials and the electric circuits of the voltage detection lines on the cell-monitoring unit side circuit board are aligned in order of their electric potentials.

Abstract: A battery module includes battery cells being arrayed, a cell-monitoring unit configured to monitor each battery cell of the battery module, a battery cell side circuit board electrically connected to the battery cells, and a cell-monitoring unit side circuit board electrically connected to the cell-monitoring unit and the battery cell side circuit board. The battery cell side circuit board and the cell-monitoring unit side circuit board are connected to each other and voltage detection lines on the battery cell side circuit board and a voltage detection lines on the cell-monitoring unit side circuit board are electrically connected. The electric circuits of the voltage detection lines on the battery cell side circuit board are aligned in order of their electric potentials and the electric circuits of the voltage detection lines on the cell-monitoring unit side circuit board are aligned in order of their electric potentials.