# US 10,483,517 B2 · Bus bar assembly structure and battery module > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,483,517 B2 - Document ID: US10483517B2 - Status: Granted - Kind: B2 - Application number: 16/302,357 - Filed: 2017-04-26 - Published: 2019-09-12 - Granted: 2019-11-19 - Earliest claimed: 2016-05-24 - Assignees: Kabushiki Kaisha Toyota Jidoshokki - Applicants: Kabushiki Kaisha Toyota Jidoshokki - Inventors: Naoto Morisaku; Fumihiko Ishiguro; Hiromi Ueda; Hirokuni Akiyama; Takayuki Kato - Web page: https://patentgrep.com/patent/US10483517B2 ## CPC - F16B 37/00: Nuts or like thread-engaging members {(specially shaped for rotations by a tool F16B23/00)} - H01M 50/209: adapted for prismatic or rectangular cells (H01M50/216 takes precedence) - H01M 50/50: Current conducting connections for cells or batteries - H01M 50/503: characterised by the shape of the interconnectors - H01M 50/55: on the same side of the cell - H01M 50/553: Terminals adapted for prismatic, pouch or rectangular cells - H01M 50/567: by fixing means, e.g. screws, rivets or bolts - H01R 4/30: utilising a screw or nut clamping member (H01R4/50 takes precedence; utilising a clamping member acted on by screw or nut H01R4/38; {for coaxial cables H01R9/0521}) - H01M 50/264: for cells or batteries, e.g. straps, tie rods or peripheral frames - Y02E 60/10: Energy storage using batteries - F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D) - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - 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 bus bar assembly structure includes an electrode terminal and a plate-shaped bus bar that is assembled to the electrode terminal. The bus bar has a burr along an edge of one of openings of an insertion hole. A threaded portion of a nut has a tapered portion at an edge of one of openings of the threaded portion, and a largest diameter of the tapered portion is greater than a bore diameter of the insertion hole. A flat portion of the bus bar is held between a bolt and a nut while the burr is located within a space created by the tapered portion. ## Claims ### Claim 1 A bus bar assembly structure comprising: an electrode terminal; and a plate-shaped bus bar that is assembled to the electrode terminal, wherein the bus bar includes a flat portion having an insertion hole through which the electrode terminal is inserted, and a bent portion that protrudes from one side of the flat portion, the electrode terminal includes an externally threaded fastener that includes a shaft portion to be inserted through the insertion hole, and an internally threaded fastener that has a threaded portion in an inner peripheral side thereof to be screwed on a tip of the shaft portion extending out from the insertion hole, the bus bar has a burr along an edge of one of openings of the insertion hole, the internally threaded fastener has a tapered portion at an edge of one of openings of the threaded portion, and the tapered portion has a largest diameter that is greater than a bore diameter of the insertion hole, and the flat portion of the bus bar is held between the externally threaded fastener and the internally threaded fastener while the burr is located within a space created by the tapered portion. ### Claim 2 (depends on 1) The bus bar assembly structure according to claim 1, wherein in the bus bar, the bent portion protrudes from a same side of the bus bar as the burr, and in the electrode terminal, the externally threaded fastener forms a base and the threaded portion of the internally threaded fastener is screwed on the shaft portion. ### Claim 3 (depends on 1) The bus bar assembly structure according to claim 1, wherein in the bus bar, the bent portion protrudes from the other side of the bus bar that is opposite to the side that has the burr, and in the electrode terminal, the internally threaded fastener forms a base and the shaft portion of the externally threaded fastener is screwed into the threaded portion. ### Claim 4 (depends on 1) The bus bar assembly structure according to claim 1, wherein the flat portion of the bus bar is held together with a ring terminal of a harness between the externally threaded fastener and the internally threaded fastener, and the ring terminal has an inner diameter that is greater than the largest diameter of the tapered portion. ### Claim 5 (depends on 1) The bus bar assembly structure according to claim 1, wherein the flat portion of the bus bar is held together with a ring terminal of a harness between the externally threaded fastener and the internally threaded fastener, and the ring terminal has an inner diameter that is smaller than the largest diameter of the tapered portion. ### Claim 6 (depends on 1) A battery module comprising an array in which a plurality of battery cells is arranged, wherein electrode terminals of adjacent battery cells are connected to each other by the bus bar assembly structure according to claim 1.