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 circuit body, a bus bar, a holder, and a cover configured to be assembled to the holder to protect the circuit body and the holder. The circuit body includes a belt-like main line that extends in a first direction, a belt-like branch line that extends from the main line so as to branch from the main line, and a connection portion provided in a position closer to a distal end of the branch line than a folded portion the branch line. The cover is structured so as to be stretchable and shrinkable in the first direction in accordance with a stretching and a shrinking of the holder in the first direction.

Abstract: A bus bar module includes a circuit body, a bus bar, a holder, and a cover configured to be assembled to the holder to protect the circuit body and the holder. The circuit body includes a belt-like main line that extends in a first direction, a belt-like branch line that extends from the main line so as to branch from the main line, and a connection portion provided in a position closer to a distal end of the branch line than a folded portion the branch line. The cover is structured so as to be stretchable and shrinkable in the first direction in accordance with a stretching and a shrinking of the holder in the first direction.

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 connector-attached circuit body include a circuit body including a flexible substrate having a wiring pattern, and a connector attached to the circuit body and including a terminal and a housing that accommodates the terminal. The terminal is electrically connected to the wiring pattern and extends in a thickness direction of the circuit body.

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 bus bar module is attached to a battery assembly having a plurality of single cells which are assembled to each other along a first direction. The bus bar module includes a circuit body, a bus bar, and a holder. The circuit body includes a main line that extends in the first direction, a branch line that extends from the main line so as to branch from the main line, and a connection portion provided in a position close to a distal end of the branch line rather than a folded portion of the branch line and configured to be connected to the bus bar.

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 structure of connection among a circuit body, a bus bar and an electronic element includes a circuit body configured by a flexible board on which a wiring pattern is provided, a bus bar attached to a mounting surface of the circuit body, and an electronic element attached to the mounting surface so as to connect the bus bar and the wiring pattern. The bus bar has a fixed portion extending along the mounting surface. The fixed portion is fixed to the mounting surface so that a restricted area which restricts deformation of the mounting surface is formed in a periphery of the fixed portion. The electronic element is arranged in the restricted area and is fixed to the mounting surface.

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 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 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 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 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 connector-equipped circuit body includes a circuit body configured by a flexible board where a wiring pattern formed of a conductor for electric connection is provided, and a connector connected to the circuit body. At a connection portion of connection between the circuit body and the connector, an auxiliary conductive layer independent of the wiring pattern is provided so as to be multilayered for the wiring pattern.

Abstract: A protector is configured to protect a belt-like flexible board where a wiring pattern is provided. The protector includes a first accommodation portion configured to accommodate the flexible board so as to be slidable in a length direction of the flexible board, a second accommodation portion configured to accommodate the flexible board in a position different from the first accommodation portion in the length direction, and a bendable coupling portion that connects between the first accommodation portion and the second accommodation portion. The coupling portion is structured so that under a condition where the coupling portion is curved, deformation of the flexible board in a direction away from the coupling portion is allowed when the flexible board is slid in the length direction with respect to the first accommodation portion.

Abstract: A connector-attached circuit body include a circuit body including a flexible substrate having a wiring pattern, and a connector attached to the circuit body and including a terminal and a housing that accommodates the terminal. The terminal is electrically connected to the wiring pattern and extends in a thickness direction of the circuit body.

Abstract: A protector is configured to protect a belt-like flexible board where a wiring pattern is provided. The protector includes a first accommodation portion configured to accommodate the flexible board so as to be slidable in a length direction of the flexible board, a second accommodation portion configured to accommodate the flexible board in a position different from the first accommodation portion in the length direction, and a bendable coupling portion that connects between the first accommodation portion and the second accommodation portion. The coupling portion is structured so that under a condition where the coupling portion is curved, deformation of the flexible board in a direction away from the coupling portion is allowed when the flexible board is slid in the length direction with respect to the first accommodation portion.