CN112350425A - Backup efficient environment-friendly rapid uninterruptible power supply cabinet - Google Patents
Backup efficient environment-friendly rapid uninterruptible power supply cabinet Download PDFInfo
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- CN112350425A CN112350425A CN201910727649.6A CN201910727649A CN112350425A CN 112350425 A CN112350425 A CN 112350425A CN 201910727649 A CN201910727649 A CN 201910727649A CN 112350425 A CN112350425 A CN 112350425A
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- 101150106235 ISPS gene Proteins 0.000 claims abstract description 30
- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 230000000007 visual effect Effects 0.000 claims abstract description 4
- 230000009365 direct transmission Effects 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 6
- 238000000819 phase cycle Methods 0.000 claims description 3
- 230000001012 protector Effects 0.000 claims description 3
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 238000009423 ventilation Methods 0.000 abstract description 3
- 230000002159 abnormal effect Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stand-By Power Supply Arrangements (AREA)
- Inverter Devices (AREA)
Abstract
The invention relates to a backup efficient environment-friendly rapid uninterruptible power supply cabinet which is characterized in that a cabinet door is arranged on the main visual surface of a cabinet body, an inner cabinet door and an element baffle are arranged in the cabinet body in the cabinet door, an element lining plate, an element beam A, an element beam B, a battery supporting plate, a transformer supporting plate, an element beam C, an element beam D, an element beam E and an element beam F are respectively arranged in the cabinet body, and ventilation openings A and B are formed in the left side and the right side of the cabinet body. The ISPS backup type efficient environment-friendly rapid uninterruptible power supply has the advantages that the ISPS backup type efficient environment-friendly rapid uninterruptible power supply operates in no-load mode at ordinary times, does not have a load and is low in loss, the conversion mode adopted by the ISPS backup type efficient environment-friendly rapid uninterruptible power supply is rapid conversion of an electronic module, the ISPS power supply can be switched into an emergency power supply state at the first time under the condition that the power supply of a city network has problems, and uninterrupted power supply is provided for the load, so that the ISPS backup type efficient environment-friendly rapid uninterruptible power supply not only achieves the advantages of energy conservation.
Description
Technical Field
The invention relates to the field of emergency power supplies, in particular to a backup efficient environment-friendly rapid uninterruptible power supply cabinet.
Background
The ISPS backup type efficient environment-friendly rapid uninterruptible power supply is a product born between a fire-fighting emergency power supply EPS and an online uninterruptible power supply UPS, the emergency power supply EPS is the backup type emergency power supply, the emergency power supply EPS has interruption time during starting and is not suitable for uninterrupted equipment to supply power, the UPS can adapt to the uninterrupted equipment to supply power for online work, but the UPS has high loss and high failure rate, and the aims of energy conservation and environment protection cannot be fulfilled.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a backup efficient environment-friendly rapid uninterruptible power supply cabinet, and the technical scheme adopted by the invention for solving the technical problem is as follows: the structure of the invention comprises a cabinet body, a cabinet door, an inner cabinet door, an element baffle, an element lining plate, an element beam A, an element beam B, a battery supporting plate, a transformer supporting plate, an element beam C, an element beam D, an element beam E, an element beam F, a vent A, a vent B, a fast converter, a host, a main output terminal, an output switch, an output indicator lamp, a fast converter output switch, an air switch, a power indicator lamp, an inlet terminal, an AC contactor switch, a commercial power input switch, a fast converter input switch, a filter capacitor, a transformer, a reactor, a reset button, a fault lamp, a reverse cut-off diode, a battery switch, a battery, a relay A, an output contactor, an ISPS mode work indicator lamp, a UPS mode work indicator lamp, a phase sequence protector, a power fuse, a relay B, a relay C, a bypass contactor, a, The intelligent cabinet comprises an indicator light, an incoming circuit bus circuit, a host incoming circuit, a battery circuit, a transformer output circuit, a municipal power supply conversion circuit, a direct transmission circuit A, a direct transmission circuit B, a total output circuit, a fast converter switching power supply circuit, a UPS/ISPS work indication circuit and a UPS/ISPS control circuit, and is characterized in that a cabinet door is arranged on the main visual surface of the cabinet body, an inner cabinet door and an element baffle plate are arranged in the cabinet body in the cabinet door, an element lining plate, an element beam A, an element beam B, a battery supporting plate, a transformer supporting plate, an element beam C, an element beam D, an element beam E and an element beam F are respectively arranged in the cabinet body, ventilation openings A and ventilation openings B are arranged on the left side and the right side of the cabinet body, the incoming terminal is connected with the municipal power supply circuit, the incoming terminal is connected with a grounding protection device, the incoming terminal is connected with the incoming circuit bus, the main machine inlet circuit is connected with the main machine, the main machine port is connected with the battery, the main machine inlet circuit supplies power for the main machine and the battery, the battery switch and the reverse cut-off diode are arranged on the power line between the battery and the main machine, the reset button of the main machine is connected with the contactor and the relay in parallel on the power line, the main machine is provided with the fault lamp, the main machine is connected with the quick converter, the filter capacitor, the transformer and the reactor are arranged between the power output port of the main machine and the power receiving port of the quick converter, and the city network power supply conversion circuit connected with the inlet circuit, The transformer output circuit is connected with the port of the fast conversion device, and the fast converter is connected with the two power lines of the fast converter in series, thereby ensuring the uninterrupted power supply, the fast converter is provided with a fast converter switch power supply circuit, the fast converter is provided with a relay A in the fast converter switch power supply circuit, the fast converter is connected with a UPS/ISPS work indication circuit, the municipal power supply is connected with the UPS/ISPS control circuit, the total output circuit of the fast converter is connected with the total output terminal, the total output circuit is provided with an output switch, an output indicator lamp and a fast converter output switch, the total output circuit of the direct transmission circuit A and the total output terminal is connected, and the total output circuit of the direct transmission circuit B and the fast converter output switch and the output switch is connected.
The ISPS backup type efficient environment-friendly rapid uninterruptible power supply has the advantages that the ISPS backup type efficient environment-friendly rapid uninterruptible power supply operates in no-load mode at ordinary times, does not have a load and is low in loss, the conversion mode adopted by the ISPS backup type efficient environment-friendly rapid uninterruptible power supply is rapid conversion of an electronic module, the ISPS power supply can be switched into an emergency power supply state at the first time under the condition that the power supply of a city network has problems, and uninterrupted power supply is provided for the load, so that the ISPS backup type efficient environment-friendly rapid uninterruptible power supply not only achieves the advantages of energy conservation.
Drawings
FIG. 1: the embodiment of the invention is a schematic view of a main structure.
FIG. 2: the embodiment of the invention is a schematic view of a primary-view inner layer structure.
FIG. 3: the embodiment of the invention has a schematic internal structure.
FIG. 4: the embodiment of the invention has a schematic internal structure.
FIG. 5: the embodiment of the invention has a schematic internal structure.
FIG. 6: the embodiment of the invention is a schematic rear view structure.
FIG. 7: the embodiment of the invention is a left view structure schematic diagram.
FIG. 8: the embodiment of the invention is a schematic diagram of a right-view structure.
FIG. 9: the embodiment of the invention discloses a schematic top view structure.
FIG. 10: the circuit structure of the embodiment of the invention is schematic.
In the figure: cabinet 1, cabinet door 2, inner cabinet door 3, component baffle 4, component lining 5, component beam a6, component beam B7, battery tray 8, transformer tray 9, component beam C10, component beam D11, component beam E12, component beam F13, vent a14, vent B15, fast converter 101, host 102, main output terminal 103, output switch 104, output indicator lamp 105, fast converter output switch 106, air switch 107, power indicator lamp 108, inlet terminal 109, ac contactor switch 110, utility grid power input switch 111, fast converter input switch 112, filter capacitor 113, transformer 114, reactor 115, reset button 116, fault lamp 117, reverse blocking diode 118, battery switch 119, battery 120, relay a121, output contactor 122, ISPS mode operation indicator lamp 123, UPS mode operation indicator lamp 124, phase sequence protector 125, and UPS mode operation indicator lamp, The power supply fuse 126, the relay B127, the relay C128, the bypass contactor 129, the indicator light 130, the incoming bus circuit 131, the host incoming circuit 132, the battery circuit 133, the transformer output circuit 134, the commercial power conversion circuit 135, the direct transmission circuit A136, the direct transmission circuit B137, the main output circuit 138, the fast converter switch power supply circuit 139, the UPS/ISPS operation indication circuit 140 and the UPS/ISPS control circuit 141.
Detailed Description
The invention aims to provide a backup efficient environment-friendly rapid uninterruptible power supply cabinet to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following technical scheme: a back-up type efficient environment-friendly rapid uninterruptible power supply cabinet is characterized in that a cabinet door 2 is arranged on the front visual surface of a cabinet body 1, an inner cabinet door 3 and an element baffle 4 are arranged in the cabinet body 1 in the cabinet door 2, a component lining plate 5, a component beam A6, a component beam B7, a battery supporting plate 8, a transformer supporting plate 9, a component beam C10, a component beam D11, a component beam E12 and a component beam F13 are respectively arranged in the cabinet body 1, vent holes A14 and vent holes B15 are arranged on the left side and the right side of the cabinet body, a line terminal 109 is connected with a commercial power line, the line terminal 109 is connected with a ground protection device, the line terminal 109 is connected with a power inlet bus circuit 131, the power inlet bus circuit 131 is connected with a rapid converter 101, a commercial power input switch 111, a rapid converter input switch 112, a commercial power input switch 111, a commercial power input switch 4, The inlet circuit bus 131 between the input switches 112 of the fast converter is connected with the host inlet circuit 132 and the city power conversion circuit 135, the host inlet circuit 132 is connected with the host 102, the port of the host 102 is connected with the battery 120, the host inlet circuit 132 supplies power for the host 102 and the battery 120, the battery 120 supplies power for the host for a long time, the power circuit between the battery 120 and the host 102 is provided with the battery switch 119 and the reverse cut-off diode 118, the reset button 116 of the host 102 is connected with the contactor and the relay in parallel on the power circuit, the host 102 is provided with the fault lamp 117, the host 102 is connected with the fast converter 101, the filter capacitor 113, the transformer 114 and the reactor 115 are arranged between the power output port of the host 102 and the power receiving port of the fast converter 101, the city power conversion circuit 135 and the transformer output circuit 134 connected with the inlet circuit 131 are connected with the ports of the fast converter 101, the fast converter 101 is connected with two power lines in series to guarantee uninterrupted power supply, the fast converter 101 is provided with a fast converter switch power supply line 139, a relay A121 is arranged in the fast converter switch power supply line 139, the fast converter is connected with a UPS/ISPS work indication line 140, a commercial power supply is connected with a UPS/ISPS control line 141, a total output circuit 138 of the fast converter 101 is connected with a total output terminal 103, an output switch 104, an output indication lamp 105 and a fast converter output switch 106 are arranged on the total output circuit 138, a direct transmission circuit A136 is connected with the total output circuit 138 connected with the total output terminal 103, and a direct transmission circuit B137 is connected with the total output circuit 138 between the fast converter output switch 106 and the output switch 104.
The three working modes of the invention can be manually set before starting up, and the working modes and the important parameters can be changed or reset before starting up each time.
The invention is an online uninterrupted power supply in UPS mode, and can be switched seamlessly. The inverter works in a UPS mode, and can automatically and forcibly switch to a power supply state of a power grid when the inverter output state meets extreme conditions such as host faults or emergency output loop hardware faults.
The invention is a backup efficient environment-friendly rapid uninterrupted power supply in the ISPS mode, and can realize seamless switching. In this mode, as long as the mains supply is normal, the inverter output is in a standby (static switch off-line) state, and for sudden power failure, the switching time of the inverter for replacing the mains supply to work is 0ms-5 ms.
When the abnormal condition of the urban power supply is met in the ISPS mode, the automatic skip bypass power supply is not allowed, and the power supply is automatically and seamlessly switched to the inverter output power supply. Only when the intelligent quick conversion occurs and the extreme condition of the inverter host fault or the output loop hardware fault occurs, the power supply state of the mains network power supply can be forcibly converted back, and the alarm signal is recorded and reported.
The charging current of the charger is not more than 0.2C (C is the battery capacity with the multiplying power of 10 hours), the fully discharged storage battery with good performance can be fully charged within 18 to 48 hours, and the charging mode of the charging system to the storage battery is an intelligent four-stage charging mode of 'current-limiting initial charging, constant-voltage intermediate charging, constant-voltage floating charging and intelligent intermittent online supplementary charging'.
The monitoring and judging module can dynamically track the state signal of the commercial power supply in real time, and can timely find and forecast a forecast signal of the commercial power supply about to be powered off in advance according to the dynamic signal of the commercial power supply state, so that the control system can conveniently send a conversion instruction to the intelligent rapid conversion system at any time.
When the parameters of the commercial power supply are normal, the contact switch and the non-contact switch of the inversion output channel in the module are automatically kept in an off state, the contact switch of the commercial power supply output channel is automatically kept in an on state, the non-contact switch is automatically kept in an off state, and the commercial power supply is directly output to a load through the contact switch of the commercial power output channel.
At the moment that the parameters of the commercial power supply are abnormal and deviate from the standard, all switches of the commercial power supply channel in the module automatically enter a turn-off state, an inversion output channel enters a turn-on state, the network power is output to a load through a rectification-inversion channel and a harmonic processing channel, and the power is automatically converted into the power supply state of the commercial power supply channel again immediately after the parameters of the commercial power supply are recovered to be normal (the static switch is off-line).
When the parameters of the power supply of the city network are seriously abnormal and are considered to be about to cut off power, the module automatically switches the load to the power supply state of the inversion output channel in advance and seamlessly according to the advance identification and judgment information sent by the detection and judgment module, the inversion channel immediately enters the state that the contact switch of the inversion channel is continuously switched on and the non-contact switch of the inversion channel is automatically switched off, and the inversion power supply is output to the load through the contact switch of the inversion output channel.
After the urban power supply is recovered, the module automatically recovers a pure backup (off-line state of the static switch) state for supplying power to the output channel of the urban power supply.
The mutual conversion of the output channel and the inversion output channel of the commercial power supply is seamless, and the non-contact switch participates in conduction only at the moment of conversion and does not participate in continuous load operation.
Under normal city power supply parameters, the system efficiency should be higher than 98%, the long-term load factor is 100%, and the overload capacity is 120%.
The invention has UPS, ISPS function, can make it work in UPS or ISPS mode through simple setting, and meet under any mode: (1) the functions of monitoring, judging, converting, security and the like of the power supply system are automatically realized; (2) automatically realizing the intelligent intermittent charging function; (3) a safe and efficient mode for automatically keeping the output of the contactless switch offline (except for the switching moment); (4) heat and harmonic waves are not generated and electromagnetic wave radiation is not generated in the electric energy transmission process; (5) the service life of the system can reach more than 10 years.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention, and various modifications and improvements of the technical solutions of the present invention made by those skilled in the art without departing from the design concept of the present invention shall fall within the protection scope of the present invention, and the technical contents of the present invention as claimed are all described in the claims.
Claims (1)
1. A back-up type efficient environment-friendly rapid uninterruptible power supply cabinet comprises a cabinet body (1), a cabinet door (2), an inner cabinet door (3), an element baffle (4), an element lining plate (5), an element beam A (6), an element beam B (7), a battery supporting plate (8), a transformer supporting plate (9), an element beam C (10), an element beam D (11), an element beam E (12), an element beam F (13), a vent A (14), a vent B (15), a rapid converter (101), a host (102), a main output terminal (103), an output switch (104), an output indicator lamp (105), a rapid converter output switch (106), an air switch (107), a power indicator lamp (108), an inlet terminal (109), an alternating current contactor switch (110), a municipal power supply input switch (111), a rapid converter input switch (112), The device comprises a filter capacitor (113), a transformer (114), a reactor (115), a reset button (116), a fault lamp (117), a reverse cut-off diode (118), a battery switch (119), a battery (120), a relay A (121), an output contactor (122), an ISPS mode work indicator lamp (123), a UPS mode work indicator lamp (124), a phase sequence protector (125), a power fuse (126), a relay B (127), a relay C (128), a bypass contactor (129), an indicator lamp (130), a power inlet bus circuit (131), a host power inlet circuit (132), a battery circuit (133), a transformer output circuit (134), a city power conversion circuit (135), a direct transmission circuit A (136), a direct transmission circuit B (137), a total output circuit (138), a fast converter switch power supply circuit (139), an UPS/ISPS work indicator circuit (140), The UPS/ISPS control circuit (141) is characterized in that a cabinet door (2) is arranged on the main visual surface of a cabinet body (1), an inner cabinet door (3) and an element baffle (4) are arranged in the cabinet body (1) in the cabinet door (2), a component lining plate (5), a component beam A (6), a component beam B (7), a battery supporting plate (8), a transformer supporting plate (9), a component beam C (10), a component beam D (11), a component beam E (12) and a component beam F (13) are respectively arranged in the cabinet body (1), vent holes A (14) and vent holes B (15) are arranged on the left side and the right side of the cabinet body, an incoming terminal (109) is connected with a mains supply line, the incoming terminal (109) is connected with a ground protection device, the incoming terminal (109) is connected with an incoming circuit (131), and the incoming circuit bus (131) is connected with a fast converter (101), a city network power supply input switch (111) and a fast converter input switch (112) are arranged between the city network power supply input switch (111) and the fast converter (101), the inlet bus circuit (131) between the city network power supply input switch (111) and the fast converter input switch (112) is connected with a host inlet circuit (132) and a city network power supply conversion circuit (135), the host inlet circuit (132) is connected with the host (102), the port of the host (102) is connected with a battery (120), the host inlet circuit (132) supplies power for the host (102) and the battery (120), the battery (120) supplies power for the host for a long time, a battery switch (119) and a reverse cut-off diode (118) are arranged on a power line between the battery (120) and the host (102), a reset button (116) of the host (102) is connected with a contactor and a relay in parallel on the power line, a fault lamp (117) is arranged on the host (102), the main machine (102) is connected with the fast converter (101), a filter capacitor (113), a transformer (114) and a reactor (115) are arranged between a power output port of the main machine (102) and a power receiving port of the fast converter (101), a city power supply conversion circuit (135) and a transformer output circuit (134) which are connected with the incoming circuit bus circuit (131) are connected with a port of the fast converter (101), the fast converter (101) is connected with the two power circuits in series to ensure uninterrupted power supply, the fast converter (101) is provided with a fast converter switching power supply circuit (139), a relay A (121) is arranged in the fast converter switching power supply circuit (139), the fast converter is connected with a UPS/ISPS work indication circuit (140), the network power supply is connected with a UPS/ISPS control circuit (141), and a city output circuit (138) of the fast converter (101) is connected with a main output terminal (103), the general output circuit (138) is provided with an output switch (104), an output indicator lamp (105) and a fast converter output switch (106), the direct output circuit A (136) is connected with the general output circuit (138) connected with the general output terminal (103), and the direct output circuit B (137) is connected with the fast converter output switch (106) and the general output circuit (138) between the output switches (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910727649.6A CN112350425A (en) | 2019-08-08 | 2019-08-08 | Backup efficient environment-friendly rapid uninterruptible power supply cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910727649.6A CN112350425A (en) | 2019-08-08 | 2019-08-08 | Backup efficient environment-friendly rapid uninterruptible power supply cabinet |
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| Publication Number | Publication Date |
|---|---|
| CN112350425A true CN112350425A (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910727649.6A Withdrawn CN112350425A (en) | 2019-08-08 | 2019-08-08 | Backup efficient environment-friendly rapid uninterruptible power supply cabinet |
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| CN (1) | CN112350425A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220224142A1 (en) * | 2021-01-08 | 2022-07-14 | Pegatron Corporation | Power supply circuit and power distribution method thereof |
-
2019
- 2019-08-08 CN CN201910727649.6A patent/CN112350425A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20220224142A1 (en) * | 2021-01-08 | 2022-07-14 | Pegatron Corporation | Power supply circuit and power distribution method thereof |
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Application publication date: 20210209 |
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