# US 12,597,685 B2 · Voltage detection device 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 12,597,685 B2 - Document ID: US12597685B2 - Status: Granted - Kind: B2 - Application number: 17/935,445 - Filed: 2022-09-26 - Published: 2023-03-30 - Granted: 2026-04-07 - Earliest claimed: 2021-09-29 - Assignees: AESC Japan Ltd. - Applicants: AESC Japan Ltd. - Inventors: Dai Monno; Ryuichi Amagai; Masayuki Nakai; Shinkichi Toyosaki; Yasuhiro Yanagihara - Web page: https://patentgrep.com/patent/US12597685B2 ## CPC - H01M 50/583: in response to current, e.g. fuses - H01M 10/425: {Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00)} - H01M 10/482: {for several batteries or cells simultaneously or sequentially} - H01M 50/204: Racks, modules or packs for multiple batteries or multiple cells - H01M 50/262: with fastening means, e.g. locks - H01M 50/284: with incorporated circuit boards, e.g. printed circuit boards [PCB] - H01M 50/296: characterised by terminals of battery packs (terminals of batteries H01M50/543) - H01M 50/533: characterised by the shape of the leads or tabs - H01M 50/569: Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals (battery terminal connectors with integrated measuring arrangements G01R31/364) - H01M 2200/103: Fuse - Y02E 60/10: Energy storage using batteries - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A first voltage detection device includes a first holding body, a first voltage detection portion held by the first holding body, and a first conductor attached to the first holding body, at least a portion of the conductor being functioning as a fuse. ## Claims ### Claim 1 A voltage detection device comprising: a holding body; a voltage detection portion held by the holding body; and a conductor attached to the holding body, at least a portion of the conductor functioning as a fuse. ### Claim 2 (depends on 1) The voltage detection device according to claim 1, wherein the fuse includes opposite ends, the conductor comprises a first portion connected to one of the opposite ends of the fuse and a second portion connected to the other of the opposite ends of the fuse, and the first portion and the second portion of the conductor are fixed to the holding body. ### Claim 3 (depends on 1) The voltage detection device according to claim 1, further comprising: a wiring electrically connected to the conductor; and a fixture fixing at least a portion of the conductor and at least a portion of the wiring to the holding body. ### Claim 4 (depends on 1) The voltage detection device according to claim 1, wherein the fuse includes opposite ends, the conductor comprises a first portion connected to one of the opposite ends of the fuse and a second portion connected to the other of the opposite ends of the fuse, the first portion or the second portion is electrically connected to a voltage detection target. ### Claim 5 (depends on 1) The voltage detection device according to claim 1, wherein the conductor comprises a plurality of extension bodies extending in different directions, and at least a portion of at least one of the plurality of extension bodies is held by at least a portion of the holding body. ### Claim 6 (depends on 1) A battery module comprising: the voltage detection device according to claim 1; and a battery cell comprising a lead portion connected to the voltage detection portion. ### Claim 7 (depends on 1) The voltage detection device according to claim 1, wherein the conductor comprises another portion not functioning as a fuse. ### Claim 8 (depends on 1) The voltage detection device according to claim 1, wherein at least a portion of the holding body penetrates through the voltage detection portion. ### Claim 9 (depends on 8) The voltage detection device according to claim 8, wherein the voltage detection portion comprises a base end portion and a tip end portion, the at least a portion of the holding body penetrates through the base end portion of the voltage detection portion, and the tip end portion of the voltage detection portion is plate-shaped. ### Claim 10 (depends on 1) The voltage detection device according to claim 1, further comprising: a voltage detection line electrically connected to the voltage detection portion, wherein the voltage detection portion is routed through the holding body. ### Claim 11 (depends on 1) The voltage detection device according to claim 1, further comprising: the fuse includes opposite ends, the conductor comprises a first portion connected to one of the opposite ends of the fuse and a second portion connected to the other of the opposite ends of the fuse, and the fuse, the first portion and the second portion are formed of a same material. ### Claim 12 (depends on 11) The voltage detection device according to claim 11, wherein the fuse has a width that is narrower than a width of the first portion and a width of the second portion. ### Claim 13 (depends on 11) The voltage detection device according to claim 11, further comprising: fixtures that fix the first portion and the second portion to the holding body. ### Claim 14 (depends on 9) The voltage detection device according to claim 9, wherein the base end portion is movably supported to the holding body. ### Claim 15 (depends on 1) The voltage detection device according to claim 1, wherein the voltage detection portion comprises a base end portion that is movably supported to the holding body. ### Claim 16 (depends on 11) The voltage detection device according to claim 11, wherein the fuse has a cross-sectional area that is smaller than a cross-sectional area of the first portion and a cross-sectional area of the second portion.