# US 2020/0396830 A1 · Busbar Module > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0396830 A1 - Document ID: US20200396830A1 - Status: Published application - Kind: A1 - Application number: 15/930,736 - Filed: 2020-05-13 - Published: 2020-12-17 - Earliest claimed: 2019-06-17 - Assignees: Yazaki Corporation - Applicants: Yazaki Corporation - Inventors: Tomoji Yasuda; Yoshiaki Ichikawa; Tatsuya Oga - Web page: https://patentgrep.com/patent/US20200396830A1 ## CPC - H05K 1/0277: {Bendability or stretchability details (H05K1/038, H05K3/4691 take precedence)} - H05K 1/189: characterised by the use of flexible or folded printed circuits - H01M 10/4207: {for several batteries or cells simultaneously or sequentially} - H01M 10/425: {Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00)} - H01M 50/284: with incorporated circuit boards, e.g. printed circuit boards [PCB] - H01M 50/291: characterised by their shape - H01M 50/507: comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules - H05K 1/0265: {characterized by the lay-out of or details of the printed conductors, e.g. reinforced conductors, redundant conductors, conductors having different cross-sections} - B60R 16/033: characterised by the use of electrical cells or batteries (for propulsion puposes B60K1/04; supplying batteries to, or removing batteries from, vehicles B60S5/06; testing of charge state G01R31/36) - G01R 31/3644: {Constructional arrangements} - H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence) - H01M 50/503: characterised by the shape of the interconnectors - H01M 50/522: Inorganic material - H01M 2220/20: Batteries in motive systems, e.g. vehicle, ship, plane - H01R 11/288: {Interconnections between batteries} - H05K 2201/052: Branched - H05K 2201/10037: Printed or non-printed battery - H05K 2201/10189: Non-printed connector - H05K 2201/10272: Busbars, i.e. thick metal bars mounted on the printed circuit board [PCB] as high-current conductors - Y02E 60/10: Energy storage using batteries - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - 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 - G01R: MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES (indicating correct tuning of resonant circuits H03J3/12) - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## 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. ## Claims ### Claim 1 A busbar module to be attached to a battery assembly having a stack of a plurality of cells and to connect the plurality of cells to an external device, the busbar module comprising: a circuit body having a flexible circuit board including a wiring pattern; a plurality of busbars to be connected to corresponding electrodes of the plurality of cells; and a holder holding the busbars and being extendable in a stacking direction of the plurality of cells, the circuit body comprising: a band-shaped main strip to be located to extend in the stacking direction; a band-shaped first branch strip branched from the main strip and extending toward a corresponding busbar among the plurality of the busbars; and a second branch strip branched from the main strip and extending toward the external device, the first branch strip comprising: a bent portion extending in the stacking direction and having a bent shape around an axis intersecting 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, wherein the bent portion includes portions at a different height than the main strip and the busbar connection portion, the second branch strip comprising: a device connection portion to be connected to the external device. ### Claim 2 (depends on 1) The busbar module according to claim 1, wherein at least a part of the second branch strip extends in the stacking direction and has a bent shape around the axis intersecting the stacking direction. ### Claim 3 (depends on 1) The busbar module according to claim 1, wherein the second branch strip branches off the main strip from a side edge of the main strip or from inside area of the main strip. ### Claim 4 (depends on 1) The busbar module according to claim 1, wherein the first branch strip extends from the main strip toward one side in a thickness direction of the main strip, the second branch strip extends from the main strip toward the other side in the thickness direction of the main strip. ### Claim 5 (depends on 1) The busbar module according to claim 1, wherein the device connection portion has a connector structure to be connected to a counterpart connector of the external device or a board connection structure to be connected to a circuit board of the external device. ### Claim 6 A busbar module to be attached to a battery assembly having a stack of a plurality of cells and to connect the plurality of cells to an external device, the busbar module comprising: a circuit body having a flexible circuit board including a wiring pattern; a plurality of busbars to be connected to corresponding electrodes of the plurality of cells; and a holder holding the busbars and being extendable in a stacking direction of the plurality of cells, the circuit body comprising: a band-shaped main strip to be located to extend in the stacking direction; a band-shaped first branch strip branched from the main strip and extending toward a corresponding busbar among the plurality of the busbars; and a second branch strip branched from the main strip and extending toward the external device, the first branch strip comprising: a bent portion extending in the stacking direction and having a bent shape around an axis intersecting 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 comprising: a device connection portion to be connected to the external device, wherein at least a part of the second branch strip has a bent shape around the axis intersecting the stacking direction, and wherein the second branch strip branches off the main strip from inside area of the main strip.