# US 10,374,454 B2 · Power supply device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,374,454 B2 - Document ID: US10374454B2 - Status: Granted - Kind: B2 - Application number: 15/512,386 - Filed: 2015-09-29 - Published: 2017-09-28 - Granted: 2019-08-06 - Earliest claimed: 2014-11-07 - Assignees: Sanyo Electric Co., Ltd. - Applicants: SANYO Electric Co., Ltd. - Inventors: Nobuo Iwatsuki; Shingo Harada - Web page: https://patentgrep.com/patent/US10374454B2 ## CPC - H02J 9/061: {for DC powered loads} - G06F 1/30: Means for acting in the event of power-supply failure or interruption, e.g. power-supply fluctuations (for resetting only G06F1/24) - H01M 50/251: specially adapted for stationary devices, e.g. power plant buffering or backup power supplies - H01M 50/284: with incorporated circuit boards, e.g. printed circuit boards [PCB] - H01M 50/298: characterised by the wiring of battery packs - H01M 50/519: comprising printed circuit boards [PCB] - H01M 50/583: in response to current, e.g. fuses - H05K 7/1457: {Power distribution arrangements} - H01M 50/51: Connection only in series - H01M 50/512: Connection only in parallel - H01M 2220/10: Batteries in stationary systems, e.g. emergency power source in plant - Y02E 60/10: Energy storage using batteries - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A power supply device includes outer case, a battery block housed in this outer case and including at least one or more secondary batteries; a circuit board connected to the battery block; and power supply connector connected to output lead that outputs an output current from the battery block. Power supply connector is attached in a floating state to fixed surface of outer case. Furthermore, the circuit board is disposed in parallel to a first direction orthogonal to fixed surface between fixed surface and the battery block. Output lead is disposed in wiring space provided in a lower side or an upper side of the circuit board, and connected to the battery block. ## Claims ### Claim 1 A power supply device comprising: an outer case; a battery block housed in the outer case and including at least one or more secondary batteries; a circuit board connected to the battery block; and a power supply connector connected to an output lead that outputs an output current from the battery block, wherein the power supply connector is attached in a floating state to a fixed surface of the outer case, the circuit board is disposed in parallel to a first direction orthogonal to the fixed surface, between the fixed surface and the battery block, the output lead is disposed in wiring space provided in a lower side or an upper side of the circuit board, and connected to the battery block, and the output lead includes a first region extending from the power supply connector toward the battery block, and a battery block side of the first region is coupled to the battery block via at least one of a protective element and the circuit board. ### Claim 2 (depends on 1) The power supply device according to claim 1, wherein the output lead is wired, extending in the first direction, in the wiring space. ### Claim 3 (depends on 1) The power supply device according to claim 1, wherein the output lead is a lead wire having a conductive portion whose cross-sectional area is 3 mm2 or more. ### Claim 4 (depends on 1) The power supply device according to claim 1, wherein the protective element is a fuse connected to the output lead, wherein a connection point of the first region and the fuse is disposed nearer to the battery block than to the fixed surface. ### Claim 5 (depends on 1) The power supply device according to claim 1, further comprising a current detection resistor connected to the output lead, wherein a connection point of the first region and the current detection resistor is disposed nearer to the battery block than to the fixed surface. ### Claim 6 (depends on 1) The power supply device according to claim 1, wherein a semiconductor switching element for turning on and off the output current is mounted on the circuit board. ### Claim 7 (depends on 1) The power supply device according to claim 1, wherein the power supply connector is attached to the fixed surface, capable of floating upward and downward. ### Claim 8 (depends on 1) The power supply device according to claim 1, wherein the power supply connector is linked to a power line of a server rack in a state in which the power supply device is set in the server rack.