# US 10,441,442 B2 · Battery pack > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,441,442 B2 - Document ID: US10441442B2 - Status: Granted - Kind: B2 - Application number: 15/000,450 - Filed: 2016-01-19 - Published: 2017-02-09 - Granted: 2019-10-15 - Earliest claimed: 2015-08-07 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Taesin Ha; ChangHyun Roh; Youngbo Shim; Joon-Kee Cho; Byung-Kwon Choi - Web page: https://patentgrep.com/patent/US10441442B2 ## CPC - A61F 2/70: electrical - A61H 1/0244: {Hip (A61H1/0255 takes precedence)} - A61H 3/00: Appliances for aiding patients or disabled persons to walk about (apparatus for helping babies to walk A47D13/04 {; applying electrical currents by contact electrodes for stimulating motor muscles, e.g. walking assistance A61N1/36003}) - H01M 10/46: Accumulators structurally combined with charging apparatus (circuits for charging H02J7/00) - H02J 7/00: Circuit arrangements for charging or discharging batteries or for supplying loads from batteries - H02J 7/32: for charging batteries from a charging set comprising a non-electric prime mover {rotating at constant speed} - H02N 2/18: producing electrical output from mechanical input, e.g. generators (for measurement devices G01) - A61H 2201/1207: with electric or magnetic drive - A61H 2201/1628: Pelvis - A61H 2201/164: Feet or leg, e.g. pedal - A61H 2201/165: Wearable interfaces - A61H 2201/1676: Pivoting - A61H 2201/5007: computer controlled - H01M 2220/30: Batteries in portable systems, e.g. mobile phone, laptop - H02J 2105/46: Medical devices, medical implants or life supporting devices - Y02E 60/10: Energy storage using batteries - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) - A61H: PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY (electrotherapy, magnetotherapy, radiation therapy or ultrasound therapy A61N) - H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H02N: ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR - Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION ## Abstract A battery pack including a case, a battery included in the case and relatively movable with respect to the case, a generator attached to the battery and including a generation axis, and a rotation member connected to the generation axis, wherein the rotation member is configured to act a torque enabling the generation axis to be rotatable when the battery is in motion. ## Claims ### Claim 1 A battery pack comprising: a case; a battery in the case and movable with respect to the case; a generator attached to the battery and including a generation axis; and a rotation member connected to the generation axis, wherein the rotation member is configured to act as a torque enabling the generation axis to be rotatable when the battery is in motion. ### Claim 2 (depends on 1) The battery pack of claim 1, wherein the rotation member comprises: a connecting body, one end of which is connected to the generation axis, and an other end of which is apart from a center of the generation axis; and a plurality of springs connected to the other end of the connecting body and to the case. ### Claim 3 (depends on 2) The battery pack of claim 2, wherein the connecting body is a torsion spring extended by coiling around the generation axis from the center of the generation axis. ### Claim 4 (depends on 2) The battery pack of claim 2, wherein a plurality of elastic bodies are radially located with respect to the other end of the connecting body. ### Claim 5 (depends on 4) The battery pack of claim 4, wherein at least one of the plurality of elastic bodies has a different spring constant from spring constants of remaining ones of the plurality of elastic bodies. ### Claim 6 (depends on 2) The battery pack of claim 2, wherein an elastic body is provided in four coil springs, and the four coil springs are substantially orthogonal with respect to the other end of the connecting body in a balanced condition. ### Claim 7 (depends on 1) The battery pack of claim 1, wherein the case comprises a supporting member configured to support the battery and restrict a movement of the battery in a direction of the generation axis. ### Claim 8 (depends on 7) The battery pack of claim 7, wherein the supporting member is configured to surround the generator, and the generator is relatively movable in the supporting member. ### Claim 9 (depends on 7) The battery pack of claim 7, wherein one surface of the battery is in contact with the case, and another surface of the battery is in contact with the supporting member. ### Claim 10 (depends on 7) The battery pack of claim 7, further comprising: a first bearing between the battery and the supporting member, the first bearing being configured to reduce a frictional force occurring when the battery is moved on a vertical plane relative to the direction of the generation axis; and a second bearing between the case and the battery. ### Claim 11 (depends on 10) The battery pack of claim 10, further comprising: a third bearing between the generation axis and the supporting member, the third bearing being configured to reduce a frictional force occurring when the generation axis is in contact with the supporting member. ### Claim 12 A battery pack comprising: a case including two planes facing each other; a generator attached to a first one of the two planes and including a generation axis; a battery on a second one of the two planes and movable with respect to the case; a connecting body configured to connect a center of the generation axis and the battery at an off-center position; and an elastic body configured to connect the case with the battery, wherein the connecting body is configured to act as a torque enabling the generation axis to be rotatable when the battery is moved. ### Claim 13 (depends on 12) The battery pack of claim 12, further comprising: a supporting member in contact with one surface of the battery, the supporting member being configured to restrict a movement of the battery in a direction of the generation axis. ### Claim 14 (depends on 13) The battery pack of claim 13, further comprising: a first bearing between the battery and the supporting member, the first bearing being configured to reduce a frictional force between the battery and the supporting member; and a second bearing between the second one of the two planes of the case and the battery. ### Claim 15 A motion assistance apparatus comprising: a battery pack including a battery movably inserted inside a case, a generator attached to the battery and including a generation axis, and a rotation member configured to connect the generation axis with the case; a driving module configured to be supplied in power by the battery pack; a fixing module to which the driving module is attached, the fixing module configured to be attached to a user; a supporting module configured to support a portion of a body of the user and to be driven by the driving module, wherein the rotation member is configured to act as a torque enabling the generation axis to be rotatable when the battery is moved in response to a motion of the user wearing the motion assistance apparatus. ### Claim 16 (depends on 15) The motion assistance apparatus of claim 15, wherein the rotation member comprises: a torsion spring, one first end of which is connected to the generation axis, and an other end of which is apart from a center of the generation axis; and at least one coil spring connected to the other end of the torsion spring and to the case. ### Claim 17 (depends on 15) The motion assistance apparatus of claim 15, wherein the case comprises a supporting member configured to be in contact with one surface of the battery and support the battery in order to restrict a movement of the battery in a direction of the generation axis. ### Claim 18 (depends on 16) The motion assistance apparatus of claim 16, wherein a plurality of coil springs are provided, and at least one of the plurality of coil springs has a different spring constant from spring constants of remaining ones of the plurality of coil springs, and a resultant force applied by the plurality of coil springs has a different direction from a direction that is parallel to the generation axis.