# US 12,006,049 B2 · Flying body > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,006,049 B2 - Document ID: US12006049B2 - Status: Granted - Kind: B2 - Application number: 17/757,439 - Filed: 2020-11-19 - Published: 2023-01-19 - Granted: 2024-06-11 - Earliest claimed: 2019-12-25 - Assignees: Panasonic Intellectual Property Management Co., Ltd. - Applicants: Panasonic Intellectual Property Management Co., Ltd. - Inventors: Ryosuke Nagase; Masaya Ugaji - Web page: https://patentgrep.com/patent/US12006049B2 ## CPC - B64C 27/10: arranged coaxially - B64U 10/14: with four distinct rotor axes, e.g. quadcopters - B64U 30/24: Coaxial rotors - B64U 50/19: using electrically powered motors - B64U 50/23: with each propulsion means having an individual motor - B64U 50/30: Supply or distribution of electrical power - B64U 50/37: Charging when not in flight - B64D 2221/00: Electric power distribution systems onboard aircraft - B64U 20/80: Arrangement of on-board electronics, e.g. avionics systems or wiring - B64U 2101/30: for imaging, photography or videography - Y02T 50/60: Efficient propulsion technologies, e.g. for aircraft - B64C: AEROPLANES; HELICOPTERS - B64U: UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR - B64D: EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract Flying body including body portion and a plurality of propellers radially disposed to be laterally symmetrical from body portion is provided with: a plurality of motors respectively rotating the plurality of propellers; a plurality of power storage packs respectively supplying currents to the plurality of motors; and sub power storage pack connected to the plurality of power storage packs by power wirings, respectively. The same number of motors of the plurality of motors are installed on each of the left and right sides, and the same number of power storage packs of the plurality of power storage packs are installed on each of the left and right sides. Sub power storage pack is installed on a lateral center line of body portion. ## Claims ### Claim 1 A flying body comprising: a body portion; a plurality of propellers which are radially disposed and are laterally symmetrical from the body portion; a plurality of motors, each of which rotates a respective one of the plurality of propellers; a plurality of power storage packs, each of which supplies currents to a respective one of the plurality of motors, respectively; a sub power storage pack connected to each of the plurality of power storage packs by a respective one of power wirings, a plurality of switches disposed between the plurality of power storage packs and the sub power storage pack, respectively; and a power supply control unit that includes a microcomputer and controls the plurality of switches, wherein: the sub power storage pack is installed on a lateral center line of the body portion, and a same number of motors of the plurality of motors are installed on each of a left side and a right side of a lateral center line of the sub power storage pack, and a same number of power storage packs of the plurality of power storage packs are installed on each of the left side and the right side, and the power supply control unit specifies at least one power storage pack having a higher current value than other power storage packs, having a corresponding motor having a higher rotational speed than other motors, or having a smaller voltage value than other power storage pack, and turns on at least one of the plurality of switches corresponding to at least one power storage pack to supply an auxiliary current from the sub power storage pack to the at least one power storage pack. ### Claim 2 (depends on 1) The flying body according to claim 1, wherein the sub power storage pack is installed at a center-of-gravity portion of the flying body. ### Claim 3 (depends on 1) The flying body according to claim 1, wherein: the sub power storage pack is connected to each of the plurality of power storage packs by a respective one of the power wirings, and wiring resistances of the power wirings are equal between the sub power storage pack and the plurality of power storage packs. ### Claim 4 (depends on 1) The flying body according to claim 1, wherein: the plurality of power storage packs are distributed at equal distances laterally from the lateral center line of the body portion, and the power wirings each connecting the sub power storage pack to a respective one of the plurality of power storage packs are set to have an equal length. ### Claim 5 (depends on 1) The flying body according to claim 1, wherein the sub power storage pack includes a capacity that is smaller than capacities of the plurality of power storage packs. ### Claim 6 (depends on 5) The flying body according to claim 5, wherein the sub power storage pack has an equal output performance to the plurality of power storage packs. ### Claim 7 (depends on 1) The flying body according to claim 1, further comprising a DC-DC convertor disposed between the plurality of switches and the sub power storage pack.