# US 2014/0153171 A1 · 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 2014/0153171 A1 - Document ID: US20140153171A1 - Status: Published application - Kind: A1 - Application number: 14/130,517 - Filed: 2012-08-17 - Published: 2014-06-05 - Earliest claimed: 2011-08-23 - Assignees: Hitachi Koki Co., Ltd. - Inventors: Masayuki Ogura; Shinji Watanabe; Haruhisa Fujisawa; Kazuhiko Funabashi; Takuhiro Murakami; Yasushi Nakano; Hideki Watanabe; Norihide Tao; Takafumi Itoh - Web page: https://patentgrep.com/patent/US20140153171A1 ## CPC - H02M 7/003: {Constructional details, e.g. physical layout, assembly, wiring or busbar connections} - H02J 7/70: characterised by the mechanical construction - H02J 7/731: {specially adapted for holding portable devices containing batteries (H02J7/751 takes precedence)} - H05K 5/0086: {portable, e.g. battery operated apparatus (casings for switching devices H01H9/02)} - H05K 5/023: {Handles; Grips} - H02J 7/855: {with circuits adapted for supplying loads from the battery} - H02J 2207/20: Charging or discharging characterised by the power electronics converter - H02M: APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF (transformers H01F; dynamo-electric converters H02K47/00; controlling transformers, reactors or choke coils, control or regulation of electric motors, generators or dynamo-electric converters H02P) - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A power supply device includes a main body, a cover member, a rechargeable battery, and an inverter device. The main body is configured of box-shape formed with an opening. The cover member is configured to open and close the opening. The rechargeable battery is accommodated in the main body. The inverter device is configured to be accommodated in the main body. The inverter device converts a direct voltage from the battery to an alternating voltage and outputs the alternating voltage. ## Claims ### Claim 1 A power supply device comprising: a main body configured of box-shape formed with an opening; a cover member configured to open and close the opening; and a rechargeable battery accommodated in the main body, wherein the power supply device further comprises an inverter device configured to be accommodated in the main body, the inverter device converting a direct voltage from the battery to an alternating voltage and outputting the alternating voltage. ### Claim 2 (depends on 1) The power supply device according to claim 1, wherein the inverter device converts the direct voltage from the battery to a square-wave alternating voltage and outputs the square-wave alternating voltage, the power supply device further comprising a sine-wave adapter configured to convert the square-wave alternating voltage outputted from the inverter device to a sine-wave alternating voltage and output the sine-wave alternating voltage, wherein the sine-wave adapter is capable of being accommodated in the main body. ### Claim 3 (depends on 1) The power supply device according to claim 1, wherein the cover member comprises a fixing section on which the inverter device is fixable. ### Claim 4 (depends on 3) The power supply device according to claim 3, wherein the inverter device comprises an engagement section and the fixing section comprises an engaging section engageable with the engagement section. ### Claim 5 (depends on 3) The power supply device according to claim 3, wherein the cover member has an outer surface from which the fixing section protrudes, the cover member further comprising a protruding section protruding more than the fixing section from the outer surface. ### Claim 6 (depends on 5) The power supply device according to claim 5, wherein the protruding section has a peripheral portion provided with the protruding section and formed with a flat section having the same level as the outer surface of the cover member, the outer surface of the cover member being slanted downward toward the flat section. ### Claim 7 (depends on 6) The power supply device according to claim 6, wherein the outer surface is slanted downward at least 1 degree toward the flat section. ### Claim 8 (depends on 5) The power supply device according to claim 5, wherein the cover member is a generally rectangular shape having four sides and is pivotally movable relative to the main body at one of the four sides, wherein the cover member has an inner surface opposed to the outer surface, the cover member being formed with at least one of U-shaped grooves penetrating the outer surface and the inner surface at the remaining side of the four sides. ### Claim 9 (depends on 8) The power supply device according to claim 8, wherein the cover member comprises a protruding wall protruding from the outer surface and provided at an entire periphery of the groove. ### Claim 10 (depends on 5) The power supply device according to claim 5, further comprising an adapter configured to connect the inverter device with the battery, wherein the inverter device comprising an accommodating section capable of accommodating the adapter and protruding from an outer portion of the inverter device, wherein the cover member has an inner surface opposed to the outer surface, the inner surface of the cover member having an abutment surface in abutment with the adapter for preventing the cover member from being closed when the inverter device is accommodated in the main body and the adapter is accommodated in the accommodating section. ### Claim 11 (depends on 3) The power supply device according to claim 3, wherein the inverter device is capable of using independently upon separating from the fixing section. ### Claim 12 (depends on 1) The power supply device according to claim 1, wherein the battery is a lead storage battery. ### Claim 13 (depends on 12) The power supply device according to claim 12, wherein the lead storage battery is for a vehicle use. ### Claim 14 (depends on 12) The power supply device according to claim 12, wherein the inverter device is selectively usable as power source either the battery or a battery pack for a power tool. ### Claim 15 (depends on 14) The power supply device according to claim 14, further comprising an adapter configured to connect the inverter device with the battery, the adapter comprising a connection section connected with the inverter device, the battery pack comprising a connecting section connected with the inverter device, a shape of the connecting section being the same as that of the connection section. ### Claim 16 (depends on 15) The power supply device according to claim 15, wherein the cover member is incapable of closing the opening in a state where the inverter device is connected with the adapter or the battery pack and is accommodated in the main body. ### Claim 17 (depends on 1) The power supply device according to claim 1, further comprising a grippable handle for carrying the main body, wherein the main body comprises a holding section for holding the handle. ### Claim 18 (depends on 17) The power supply device according to claim 17, wherein the handle comprises a first handle member having a first joint surface, and a second handle member having a second joint surface, the first joint surface and the second joint surface being in abutment with and fixed to each other, the first handle member and the second handle member being half-split shape that is plane-symmetrical with respect to the first and second joint surfaces. ### Claim 19 (depends on 17) The power supply device according to claim 17, wherein the main body has one end portion where the cover member is provided and another end portion opposed to the one end portion in a longitudinal direction, the handle being movably held on the holding section at a prescribe amount in the longitudinal direction, wherein the main body further comprises a stopper in abutment with the handle when the handle is located at an end position in a direction from the other end portion to the one end portion. ### Claim 20 (depends on 19) The power supply device according to claim 19, further comprising an elastic member provided at least one of a portion of the handle and a portion of the stopper, the stopper being in abutment with the portion of the handle, and the handle being in abutment with the portion of the stopper. ### Claim 21 (depends on 20) The power supply device according to claim 20, wherein the main body has an outer surface, the handle being movable along the outer surface, the elastic member being provided from the outer surface to a portion farther than the handle in a separating direction from the main body. ### Claim 22 (depends on 20) The power supply device according to claim 20, wherein the elastic member is made from rubber damper. ### Claim 23 (depends on 19) The power supply device according to claim 19, wherein the handle has a top end portion farthest from the main body in the longitudinal direction, wherein when the main body is in an upside down orientation in which the one end portion of the main body is positioned at bottom side and the other end portion of the main body is positioned at top side, the top end portion and a center of gravity of the power supply device each projected to a plane perpendicular to the longitudinal direction are away from each other such that the power supply device is incapable of stably maintaining the upside down orientation. ### Claim 24 (depends on 17) The power supply device according to claim 17, wherein the handle is disposed at an outer surface of the main body and is movable between a most retracted position retracted along the outer surface and a most extended position extending from the main body, wherein the handle has a top end portion farthest from the main body in a longitudinal direction of the main body, the top end portion being located at a position higher than a top portion of the inverter device in a state where the inverter device is fixed on the cover member and the handle is at the most retracted position. ### Claim 25 (depends on 1) The power supply device according to claim 1, further comprising a wheel rotatably supported on the main body to be capable of carrying the main body. ### Claim 26 (depends on 1) The power supply device according to claim 1, further comprising a middle cover provided in the main body and dividing a space within the main body into an upper chamber and a lower chamber, wherein the battery is accommodated at the lower chamber and the inverter device is capable of being accommodated in the upper chamber. ### Claim 27 (depends on 26) The power supply device according to claim 26, wherein the middle cover comprises a receiving section for receiving the inverter device, the inverter device being held by the cover member and the receiving section upon being accommodated in the main body. ### Claim 28 (depends on 27) The power supply device according to claim 27, further comprising an adapter configured to connect the inverter device with the battery, wherein the middle cover comprises an accommodating portion configured to accommodate the adapter and positioned lower than the receiving section. ### Claim 29 (depends on 28) The power supply device according to claim 28, wherein the inverter device is capable of being received on the middle cover in a state where the adapter is connected to the inverter device. ### Claim 30 (depends on 26) The power supply device according to claim 26, wherein the main body comprises an inner body defining a space within the main body, and an outer body constituting an outer shell of the main body, wherein the power supply device further comprises a grippable handle for carrying the main body, the main body further comprising a holding section for holding the handle, wherein the inverter device is capable of being accommodated in the upper chamber in a state where the inverter device is received on the middle cover, wherein the inner body comprises a concave section located at a position confronting the inverter device and depressed outward from the main body, the holding section being fixed at the concave section. ### Claim 31 (depends on 26) The power supply device according to claim 26, wherein the inverter device converts the direct voltage from the battery to a square-wave alternating voltage and outputs the square-wave alternating voltage, the power supply device further comprising a sine-wave adapter capable of converting the square-wave alternating voltage outputted from the inverter device to a sine-wave alternating voltage, wherein the main body comprises an inner body defining a space within the main body and an outer body constituting an outer shell, the power supply device further comprising a grippable handle for carrying the main body, the main body further comprising a holding section for holding the handle, wherein the sine-wave adapter is capable of being accommodated in the upper chamber in a state where the sine-wave adapter is received on the middle cover, wherein the inner body comprises a concave section in confrontation with the sine-wave adapter and depressed outward from the main body, the holding section being fixed at the concave section. ### Claim 32 (depends on 26) The power supply device according to claim 26, wherein the middle cover has a peripheral portion formed with at least one of U-shaped groove sections penetrating an upside of the middle cover and a downside thereof, the at least one of U-shaped groove sections being formed such that the peripheral portion of the middle cover is cut out. ### Claim 33 (depends on 26) The power supply device according to claim 26, wherein the middle cover has a bottom surface formed with a through hole penetrating the upper chamber and the lower chamber. ### Claim 34 (depends on 1) The power supply device according to claim 1, wherein the main body comprises a buffer material for cushioning an impact. ### Claim 35 (depends on 34) The power supply device according to claim 34, wherein the main body further comprises an inner body defining a space within the main body, the battery being disposed within the inner body and the buffer material being disposed outside of the inner body. ### Claim 36 (depends on 35) The power supply device according to claim 35, wherein the main body further comprises an outer body constituting an outer shell of the main body, the buffer material being provided between the inner body and the outer body. ### Claim 37 (depends on 36) The power supply device according to claim 36, wherein the main body comprises an abutting section, the abutting section comprising a first abutting section formed on a bottom surface of the inner body and a second abutting section formed at the outer body and in confrontation with the first abutting section. ### Claim 38 (depends on 37) The power supply device according to claim 37, wherein the inner body has a bottom surface formed with a drainage hole penetrating inside of the main body and outside thereof, the bottom surface of the inner body comprising a slant section slanted downward toward the drainage hole. ### Claim 39 (depends on 38) The power supply device according to claim 38, wherein the slant section is slanted more than or equal to 1 degree relative to a horizon. ### Claim 40 (depends on 38) The power supply device according to claim 38, wherein the abutting section is located at a position lower than the slant section, and the drainage hole is formed at the abutting section. ### Claim 41 (depends on 34) The power supply device according to claim 34, wherein the buffer material has thermal insulation properties. ### Claim 42 (depends on 35) The power supply device according to claim 35, further comprising a plate-shaped battery plate provided at a bottom surface of the inner body and extending in a prescribed direction, a pair of battery shafts each having an upper end portion and a lower end portion, and a plate-shaped support plate extending in the prescribed direction and spanned above the battery, wherein the battery plate is formed with a plurality of first holes spaced away from each other in the prescribed direction and is provided with restricting sections located at each end portions of the battery plate in a direction perpendicular to the prescribed direction, the lower end portion of each of the battery shafts extending through the corresponding first holes, wherein the support plate is formed with a plurality of second holes spaced away from each other in the prescribed direction, the upper end portion of each of the battery shafts extending through the corresponding second holes, wherein the battery is fixedly sandwiched by the support plate and the battery plate. ### Claim 43 (depends on 42) The power supply device according to claim 42, further comprising a first antislip member for preventing a slippage of the battery plate with respect to the battery plate. ### Claim 44 (depends on 42) The power supply device according to claim 42, further comprising a second antislip member for preventing a slippage of the battery with respect to the battery plate. ### Claim 45 (depends on 43) The power supply device according to claim 43, wherein the first antislip member is a rubber damper. ### Claim 46 (depends on 44) The power supply device according to claim 44, wherein the second antislip member is a rubber damper. ### Claim 47 (depends on 42) The power supply device according to claim 42, wherein the battery comprises a pair of terminals separating from each other at a predetermined distance, the support plate comprising an insulating member having a length longer than the predetermined distance.