# US 11,444,437 B2 · Power supply apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,444,437 B2 - Document ID: US11444437B2 - Status: Granted - Kind: B2 - Application number: 17/276,900 - Filed: 2019-08-29 - Published: 2021-12-09 - Granted: 2022-09-13 - Earliest claimed: 2018-09-20 - Assignees: Ls Electric Co., Ltd. - Applicants: Ls Electric Co., Ltd. - Inventors: Hyukil Kwon; Kwangkyu Hwang; Kwanseung An - Web page: https://patentgrep.com/patent/US11444437B2 ## CPC - H02B 1/20: Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards (installations of bus-bars H02G5/00) - H02J 3/007: Arrangements for selectively connecting one or more loads to one or more power sources or power lines - H02J 9/062: {for AC powered loads} - H02M 3/003: {Constructional details, e.g. physical layout, assembly, wiring or busbar connections} - H02M 7/003: {Constructional details, e.g. physical layout, assembly, wiring or busbar connections} - H05K 7/183: {support rails therefor} - H02B 1/014: {Corner connections for frameworks} - H02B: BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY - 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) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A power supply apparatus includes a plurality of power modules for receiving alternating current power to provide the power to a load; an uninterruptible supply module to supply self-power to the load; an inverter module installed on one side of the power modules or the uninterruptible supply module to convert the power and provide converted power to the load; direct current bus bars provided inside enclosures of the power modules, the uninterruptible supply module, and the inverter module, respectively; and a connection bus bar for connecting adjacent direct current bus bars, wherein in the power modules and the uninterruptible supply module, an alternating current/direct current converter or a direct current/direct current converter is provided in the upper portion of the direct current bus bar, or the alternating current/direct current converter or the direct current/direct current converter is provided in the lower portion of the direct current bus bar. ## Claims ### Claim 1 A power supply apparatus, comprising: a plurality of power modules for receiving alternating current power to provide the power to a load; an uninterruptible supply module installed on one side of the plurality of power modules to supply self-power to the load; an inverter module installed on one side of the plurality of power modules or the uninterruptible supply module to convert power and provide the converted power to the load; direct current bus bars provided inside enclosures of the plurality of power modules, the uninterruptible supply module, and the inverter module, respectively; and a connection bus bar for connecting adjacent direct current bus bars, wherein in the plurality of power modules and the uninterruptible supply module, an alternating current/direct current converter or a direct current/direct current converter is provided above the direct current bus bar, or the alternating current/direct current converter or the direct current/direct current converter is provided under the direct current bus bar, wherein the direct current bus bar has longitudinal connection portions formed in a lengthwise direction at opposite end portions thereof, and a lateral connection portion formed in a widthwise direction at a side portion thereof, wherein the connection bus bar has a coupling portion formed as a groove so that the longitudinal connection portion or the lateral connection portion is fastened thereto. ### Claim 2 (depends on 1) The power supply apparatus of claim 1, wherein the plurality of power modules comprises a main module to supply power to the load in a normal state and a bypass module to supply power to the load when the main module is inoperable. ### Claim 3 (depends on 2) The power supply apparatus of claim 2, further comprising: a control module to control the plurality of power modules and the uninterruptible supply module. ### Claim 4 (depends on 1) The power supply apparatus of claim 1, wherein the direct current bus bar is installed in an intermediate portion of each of the enclosures. ### Claim 5 (depends on 4) The power supply apparatus of claim 4, wherein in the plurality of power modules and the uninterruptible supply module, when the alternating current/direct current converter or the direct current/direct current converter is provided above the direct current bus bar, rest of power devices are disposed under the direct current bus bar, and wherein in the plurality of power modules and the uninterruptible supply module, when the alternating current/direct current converter or the direct current/direct current converter is provided under the direct current bus bar, the rest of the power devices are disposed above the direct current bus bar. ### Claim 6 (depends on 3) The power supply apparatus of claim 3, wherein the control module is provided with an external direct current bus bar that is connected to the direct current bus bar provided in the control module and exposed outwardly of the control module. ### Claim 7 (depends on 1) The power supply apparatus of claim 1, wherein the coupling portion is a U-shaped groove or a stepped groove. ### Claim 8 (depends on 1) The power supply apparatus of claim 1, further comprising: outer frames disposed on edges of the enclosure and an intermediate frame disposed between the outer frames adjacent to each other. ### Claim 9 (depends on 8) The power supply apparatus of claim 8, wherein one side surface of the outer frame is provided with a cutout portion cut in a lengthwise direction, and another side surface facing the one side surface is provided with a plurality of fastening holes aligned in the lengthwise direction. ### Claim 10 (depends on 9) The power supply apparatus of claim 9, wherein the surface provided with the fastening holes has a recessed stepped portion in the lengthwise direction. ### Claim 11 (depends on 8) The power supply apparatus of claim 8, wherein opposite end portions of the outer frame are provided with fastening grooves. ### Claim 12 (depends on 11) The power supply apparatus of claim 11, further comprising: a three-way frame connector to connect three outer frames adjacent to each other. ### Claim 13 (depends on 12) The power supply apparatus of claim 12, wherein the three-way frame connector comprises a body portion, and three fastening portions protruding from the body portion in three directions orthogonal to each other to be inserted in the fastening grooves. ### Claim 14 (depends on 8) The power supply apparatus of claim 8, wherein opposite ends of the intermediate frame are each provided with a fitting portion that is cut out. ### Claim 15 (depends on 14) The power supply apparatus of claim 14, further comprising: a one-way frame connector inserted into the fitting portion and fastened to the outer frame. ### Claim 16 (depends on 15) The power supply apparatus of claim 15, wherein the one-way frame connector comprises a stepped insertion portion to be inserted in the fitting portion, and an engaging surface portion provided with a screw hole and to be abutted on the outer frame. ### Claim 17 (depends on 1) The power supply apparatus of claim 1, wherein the enclosure is provided with a bus bar hole formed at a position where the longitudinal connection portion or the lateral connection portion is disposed. ### Claim 18 (depends on 8) The power supply apparatus of claim 8, wherein the enclosure is provided with a frame hole to expose a part of the outer frame.