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 busbar module includes: a circuit body having a flexible circuit board; busbars; and a holder. The circuit body has: conductor layers and protective layers to form a multiple-layered structure of wiring patterns; a band-shaped main strip to be located to extend in a stacking direction of cells; and a band-shaped branch strip branched from the main strip. The branch strip has: a bent portion extending in the stacking direction and having a bent shape around an axis crossing the stacking direction; and a connection portion disposed closer to an end of the branch strip than the bent portion and connected to the corresponding busbar. The bent portion has a thin-layer portion having a shape formed by removing, from the flexible circuit board, a part of the protective layers corresponding to a part of the conductor layers without being used as the wiring pattern in the branch strip.

Abstract: A bus bar module includes a bus bar electrically connect electrode terminals respectively included in a plurality of battery cells, and a detection conductor electrically connected to the bus bar. The bus bar includes: a pair of electrode joining parts respectively joined to the different electrode terminals; a coupling part coupling the pair of electrode joining parts to each other, and capable of being cut between the pair of electrode joining parts where the pair of electrode joining parts is respectively joined to the electrode terminals; and a pair of rejoinable parts respectively extending from the pair of electrode joining parts. The electrode joining parts and the coupling part constitute a conductive connection part for primary use disposed across the different electrode terminals to electrically connect the different electrode terminals to each other.

Abstract: A busbar module includes: a plurality of busbars arranged along a first direction and connected to battery cells; and a plate-like circuit body having a plurality of detection lines to be connected to the busbars and having flexibility, in which the circuit body includes a main line portion in which the plurality of detection lines is routed and branch portions, branching from the main line portion and in which the detection lines to be connected to the busbars are routed, the branch portions each include a stretchable portion that is stretchable along the first direction, the stretchable portions each have slits or a cutout formed in a direction intersecting the first direction in a plan view of the circuit body, and a detection line of each of the stretchable portions is routed along the slits or the cutout.

Abstract: A conductive module includes a conductive part is provided with a flat laminated body formed of a plurality of conductors and an insulator having flexibility. The conductive part includes a first conductor that is configured to electrically connect the battery cells to a battery monitoring unit, and a second conductor that is configured to electrically connect the battery monitoring unit to electrical equipment, as the conductors, and includes a first connector that is configured to be fitted and connected to a counterpart connector of the battery monitoring unit and is configured to electrically connect the first conductor and the second conductor to the battery monitoring unit, and a second connector that is configured to be fitted and connected to a counterpart connector disposed on the electrical connection box side and is configured to electrically connect the second conductor to the electrical equipment.

Abstract: A connection structure includes: a circuit body including a flexible printed circuit having a wiring pattern; and a conductive body connected to a mounting surface of the circuit body using a solder. The conductive body has a pair of connection portions opposed to each other and extending along the mounting surface. The solder forms solder fillets located around the pair of connection portions and extending along the mounting surface. A first fillet width of one solder fillet among the solder fillets located in an inside region between the pair of connection portions is larger than a second fillet width of another solder among the solder fillets located in an outside region of one of the pair of connection portions, which is on a side opposite to the inside region across the one of the pair of connection portions.

Abstract: A connection structure includes: a circuit body including a flexible printed circuit having a wiring pattern; and a conductive body including a connection portion. The connection portion has a flat-plate shape and is connected to a mounting surface of the circuit body. The wiring pattern has a number of connection target portions each extending in a preset direction to cross the connection portion and is longer than a width of the connection portion in the preset direction. The connection portion and the connection target portions are electrically connected using a conductive adhesive to connect the wiring pattern and the conductive body.

Abstract: A method for manufacturing a laminated bus bar includes a first base member forming process of forming a plurality of first through-holes in a conductive flat plate-shaped first base member, a second base member forming process of forming a conductive flat plate-shaped second base member, a laminating process of forming a laminated body configured by laminating and fixing flat surfaces of the first base member and the second base member on and to each other, and a punching process of forming, in the second base member of the laminated body, second through-holes forming pairs with the first through-holes, the second through-holes being smaller than the first through-holes in portions overlapping with the first through-holes in a lamination direction of the first base member and the second base member.

Abstract: A connection structure includes: a circuit body including a flexible printed circuit having a wiring pattern; and a conductive body connected to a mounting surface of the circuit body using a solder. The conductive body has a pair of connection portions opposed to each other and extending along the mounting surface. The solder forms solder fillets located around the pair of the connection portions and extending along the mounting surface. A first fillet width of one solder fillet among the solder fillets located in an inside region between the pair of the connection portions is larger than a second fillet width of another one solder among the solder fillets located in an outside region on an opposite side to the inside region across the connection portions.

Abstract: A connection structure includes: a circuit body including a flexible printed circuit having a wiring pattern; and a conductive body including a connection portion. The connection portion has a flat-plate shape and is connected to a mounting surface of the circuit body. The wiring pattern has a number of connection target portions each extending in a preset direction to cross the connection portion and is longer than a width of the connection portion in the preset direction. The connection portion and the connection target portions are electrically connected using a conductive adhesive to connect the wiring pattern and the conductive body.

Abstract: A busbar module includes: a circuit body having a flexible circuit board; busbars; and a holder. The circuit body has: a band-shaped main strip to be located to extend in a stacking direction of cells; a band-shaped first branch strip branched from the main strip and extending toward a corresponding busbar; and a second branch strip branched from the main strip and extending toward an external device. The first branch strip has: a bent portion extending in the stacking direction and having a bent shape around an axis crossing the stacking direction; and a busbar connection portion disposed closer to an end of the first branch strip than the bent portion and connected to the corresponding busbar. The second branch strip has a device connection portion to be connected to the external device.

Abstract: A method for manufacturing a laminated bus bar includes a first base member forming process of forming a plurality of first through-holes in a conductive flat plate-shaped first base member, a second base member forming process of forming a conductive flat plate-shaped second base member, a laminating process of forming a laminated body configured by laminating and fixing flat surfaces of the first base member and the second base member on and to each other, and a punching process of forming, in the second base member of the laminated body, second through-holes forming pairs with the first through-holes, the second through-holes being smaller than the first through-holes in portions overlapping with the first through-holes in a lamination direction of the first base member and the second base member.

Abstract: A busbar module includes: a circuit body having a flexible circuit board; busbars; and a holder. The circuit body has: conductor layers and protective layers to form a multiple-layered structure of wiring patterns; a band-shaped main strip to be located to extend in a stacking direction of cells; and a band-shaped branch strip branched from the main strip. The branch strip has: a bent portion extending in the stacking direction and having a bent shape around an axis crossing the stacking direction; and a connection portion disposed closer to an end of the branch strip than the bent portion and connected to the corresponding busbar. The bent portion has a thin-layer portion having a shape formed by removing, from the flexible circuit board, a part of the protective layers corresponding to a part of the conductor layers without being used as the wiring pattern in the branch strip.

Abstract: A busbar module includes: a circuit body having a flexible circuit board; busbars; and a holder. The circuit body has: a band-shaped main strip to be located to extend in a stacking direction of cells; a band-shaped first branch strip branched from the main strip and extending toward a corresponding busbar; and a second branch strip branched from the main strip and extending toward an external device. The first branch strip has: a bent portion extending in the stacking direction and having a bent shape around an axis crossing the stacking direction; and a busbar connection portion disposed closer to an end of the first branch strip than the bent portion and connected to the corresponding busbar. The second branch strip has a device connection portion to be connected to the external device.

Abstract: A circuit body includes a flexible circuit board including: a conductor wiring pattern for electrical connection; and a pair of protective layers sandwiching the wiring pattern to isolate the wiring pattern from outside. The wiring pattern has a conduction portion exposed to the outside through an opening located on at least one of the pair of the protective layers and to be electrically connected to an external terminal. The conduction portion has at least two overlap portions located around the opening and sandwiched between the pair of the protective layers in a thickness direction of the flexible circuit board.

Abstract: A conductive module includes a plurality of conductive terminal connection components for electrical connection with an electrode terminal; a conductive component that electrically connects a battery cell and an electrical connection target; and an electrical connection structure for each terminal connection component that electrically connects the terminal connection component and the conductive component. The conductive component includes a conductor for each terminal connection component formed using a dissimilar metal material which is a different type from the terminal connection component. The electrical connection structure is formed using a similar metal material which is the same type as the conductor.

Abstract: A bus bar module is used to be attached to a battery assembly having a plurality of unit battery cells stacked each other. The bus bar module includes bus bars each to be connected to each of the plurality of the unit battery cells; a heating body capable of heating the battery assembly; and a holder holding the bus bars and the heating body. The heating body is configured to be disposed between a pair of electrode portions of each of the plurality of the unit battery cells.

Abstract: A wire harness exterior member includes a flexible tube portion, an inflexible tube portion, and a post-attached part attached to a boundary between the flexible tube portion and the inflexible tube portion. The post-attached part is attached such that at least a portion of an attaching surface of a rigid attaching portion overlaps the flexible tube portion.

Abstract: An exterior member has an exterior member body having a base color, and an identification mark having an identification color different from the base color. The identification mark includes at least one of a plurality of line marks provided parallel to each other, and a line mark provided continuously and spirally.

Abstract: A wire harness includes at least one conductive path, and an exterior member that accommodates and protects the conductive path. The exterior member is a molded resin component made of a resin material which has a black color or a dark color close to the black color.