CN117977978B - Commercial cooling unit power management module - Google Patents
Commercial cooling unit power management module Download PDFInfo
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- CN117977978B CN117977978B CN202410128675.8A CN202410128675A CN117977978B CN 117977978 B CN117977978 B CN 117977978B CN 202410128675 A CN202410128675 A CN 202410128675A CN 117977978 B CN117977978 B CN 117977978B
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- 238000001816 cooling Methods 0.000 title claims abstract description 20
- 230000010354 integration Effects 0.000 claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000012544 monitoring process Methods 0.000 claims abstract description 5
- 238000012545 processing Methods 0.000 claims description 39
- 239000003990 capacitor Substances 0.000 claims description 17
- 238000004891 communication Methods 0.000 claims description 12
- 238000005070 sampling Methods 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 102100031786 Adiponectin Human genes 0.000 description 5
- 101000775469 Homo sapiens Adiponectin Proteins 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- HEZMWWAKWCSUCB-PHDIDXHHSA-N (3R,4R)-3,4-dihydroxycyclohexa-1,5-diene-1-carboxylic acid Chemical compound O[C@@H]1C=CC(C(O)=O)=C[C@H]1O HEZMWWAKWCSUCB-PHDIDXHHSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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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
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
-
- 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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00304—Overcurrent protection
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Rectifiers (AREA)
Abstract
The invention relates to the technical field of cooling units and discloses a power management module of a commercial cooling unit, which comprises a liquid cooling power management module and a high-voltage circuit charging protection module, wherein the liquid cooling power management module comprises a first power integration unit and a second power integration unit, the first power integration unit is used for converting input three-phase alternating current into high-voltage direct current output and low-voltage direct current output, and the second power integration unit is used for remotely monitoring the working state of the first power integration unit and remotely regulating the output voltage of the first power integration unit; the high-voltage circuit charging protection module is connected with the output end of the first power supply integration unit. The invention can realize large-scale voltage output, reduce the cost of power supply conversion hardware, improve the power supply conversion efficiency, reduce the volume of equipment, and remotely collect the working state of the first power supply integrated unit and regulate the output voltage; the system can also collect, process and monitor data of various external field devices and has OTA remote upgrading function.
Description
Technical Field
The invention relates to a commercial cooling unit power management module.
Background
The traditional commercial cooling unit generally directly uses alternating current as a high-voltage device power supply and uses 24V direct current as a low-voltage device power supply. In the prior art, high-voltage direct current is generally used as a power supply of a high-voltage device, and 12V direct current is used as a power supply of a low-voltage device. Therefore, two power conversion devices, ACDC (high voltage direct current voltage range 300V to 1000V) and ACDC (low voltage direct current 12V), are required to be added.
Even so designed, the prior art still suffers from the following drawbacks:
(1) In the prior art power supply scheme, the corresponding current is high, so that the corresponding relevant industrial scale of the product is not large, and the price and the cost of a single product are high. The output high-voltage range of the existing ACDC product is very narrow, and the output voltage level is difficult to adjust in a large range (300V-1000V) according to actual requirements.
(2) In the prior art, a power supply scheme generally adopts a combination scheme of a plurality of ACDC or ACDC+DCDC, so that the overall volume of the control module is greatly improved. The high current communication among different modules leads to the pencil cost increase by a wide margin, and the installation complexity improves, has also improved the cost of later stage maintenance simultaneously.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide the power supply system capable of realizing large-scale voltage output, reducing the cost of power supply conversion hardware, improving the power supply conversion efficiency, reducing the equipment volume, remotely collecting the working state of a first power supply integrated unit and remotely adjusting the output voltage. The impact of large current on an external large-voltage executing device is reduced, electronic components are protected, data acquisition, processing and monitoring of various external field devices can be carried out, and the OTA remote upgrading function is achieved.
The invention is realized by adopting the following technical scheme: a commercial cooling unit power supply management module comprises a liquid cooling power supply management module and a high-voltage circuit charging protection module;
the liquid cooling power supply management module comprises:
a unit and a second power supply integration unit;
the first power supply integration unit is used for converting input three-phase alternating current into high-voltage direct current output and low-voltage direct current output;
The second power supply integrated unit is used for remotely monitoring the working state of the first power supply integrated unit and remotely adjusting the output voltage of the first power supply integrated unit;
The high-voltage circuit charging protection module is connected with the output end of the first power supply integration unit, receives the high-voltage direct-current output of the first power supply integration unit, and outputs direct-current high voltage to the external execution device, and is used for adjusting the output high-voltage high current, reducing the impact current when the external execution device is electrified and protecting the external execution device;
further, the first power supply integration unit comprises a first power supply processing unit, a second power supply processing unit, a high-voltage output module and a low-voltage output module;
The first power supply processing unit is a three-phase power supply processor, the access end of the first power supply processing unit is connected with three-phase alternating current, alternating current outside the set frequency in the three-phase alternating current is processed, the output end of the first power supply processing unit is connected with the input end of the second power supply processing unit, and the load of the three-phase alternating current is improved through the second power supply processing unit;
the output end of the second power supply processing unit is respectively connected with the input ends of the high-voltage output module and the low-voltage output module and is used for supplying power to the high-voltage external execution device and supplying power to the low-voltage external execution device.
Further, the second power integration unit comprises three power drivers and an auxiliary power supply module, wherein a first power driver amplifies control signals of the three power drivers through a driving circuit and is used for driving the second power processing unit, the second power driver amplifies the control signals of the second power driver through the driving circuit and is used for driving the high-voltage output module, bidirectional serial communication can be kept between the first power driver and the second power driver, a third power driver amplifies the control signals of the third power driver through the driving circuit and is used for driving the low-voltage output module, and sampling circuits are respectively connected among the second power processing unit, the high-voltage output module, the low-voltage output module and the three power drivers and are respectively used for collecting working states of the second power processing unit, the high-voltage output module and the low-voltage output module; the three power drivers are also respectively connected with a protection circuit and an auxiliary power supply module, and the second power driver is also connected with a CAN communication module for remote communication.
Further, the high-voltage circuit charging protection module comprises a main relay JK2, a charging relay JK1, a current limiting resistor, a charging capacitor, a charging high-voltage input interface, a charging high-voltage output interface and a charging low-voltage control interface, wherein a direct-current output end of the high-voltage output module is connected with the charging high-voltage input interface, the charging high-voltage input interface is connected with the charging high-voltage output interface through a positive line and a negative line, the charging relay JK1 and the current limiting resistor are arranged on the positive line of the high-voltage circuit charging protection module, the charging capacitor is arranged between the positive line and the negative line of the high-voltage circuit charging protection module, the main relay JK2 is connected with the charging relay JK1 and the current limiting resistor in parallel, the charging relay JK1 and the main relay JK2 are respectively connected with the charging low-voltage control interface through wires, and a second power driver is connected with the charging low-voltage control interface through a high-side driving signal output by a driving circuit; the charging high-voltage input interface of the high-voltage circuit charging protection module is connected with the high-voltage direct-current voltage output by the high-voltage output module, the charging relay JK1 connected in series with the current-limiting resistor is controlled to be closed through the charging low-voltage control interface to charge the charging capacitor, the main relay JK2 is closed again and the charging relay JK1 is opened after a period of time, the current in the circuit is limited due to the existence of the current-limiting resistor, the impact of high current on an external high-voltage executing device is avoided, and the external high-voltage executing device is protected.
Further, the second power supply processing unit comprises a three-phase three-wire topology, each phase comprises an inductor, a rectifier bridge, a switching tube, two diodes and two filter capacitors, one end of the inductor is connected with the first power supply processing unit, the other end of the inductor is connected with the alternating current input end of the rectifier bridge, the two filter capacitors are connected in series and then arranged between two direct current output ends of the rectifier bridge, the two diodes are respectively connected with the direct current output ends of the rectifier bridge, and the switching tube is arranged between the two direct current output ends of the rectifier bridge in parallel.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the power management module, the high-voltage direct-current voltage output by the high-voltage output module is connected to the charging high-voltage input interface through the high-voltage circuit charging protection module, the charging relay JK1 connected in series with the current limiting resistor is controlled to be closed through the charging low-voltage control interface to charge the charging capacitor, the current in the circuit is limited due to the existence of the current limiting resistor, the impact of high current on an external high-voltage executing device is avoided, and electronic components such as a motor controller, power output equipment and a main relay can be protected.
2. According to the power management module, the hardware circuit design of the high-voltage output module can output 350-500 VDC and 500-1000 VDC respectively through controlling the relays SW1-SW3, so that the circuit efficiency is high, and the cost is low.
Drawings
FIG. 1 is a block diagram of the circuit connections of the present invention;
FIG. 2 is a circuit diagram of a high voltage circuit charge protection module according to the present invention;
FIG. 3 is a hardware circuit topology of a first power integration unit of the present invention;
In the figure: the liquid cooling power supply management module 1, the high-voltage circuit charging protection module 2, the power supply module cooling structure 4, the first power supply integrated unit 10, the second power supply integrated unit 20, the first power supply processing unit 11, the second power supply processing unit 12, the high-voltage output module 13, the low-voltage output module 14, the driving circuit 15, the sampling circuit 16, the protection circuit 17, the auxiliary power supply module 18, the CAN communication module 19, the power supply driver 110, the current limiting resistor 23, the charging capacitor 24, the charging high-voltage input interface 25, the charging high-voltage output interface 26 and the charging low-voltage control interface 27.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.
Examples
Referring to fig. 1, the liquid cooling power management module includes a first power integration unit 10 and a second power integration unit 20, wherein the first power integration unit 10 is used for converting input three-phase alternating current into high voltage direct current output and low voltage direct current output, and the second power integration unit 20 is used for remotely monitoring the working state of the first power integration unit 10 and remotely adjusting the output voltage of the first power integration unit 10.
The high-voltage circuit charging protection module is connected with the output end of the first power supply integration unit 10, receives the high-voltage direct current output of the first power supply integration unit 10, and outputs direct current high voltage to an external execution device for adjusting the output high-voltage high current, reducing the impact current when the external execution device is electrified, and protecting the external execution device.
Referring to fig. 1, the first power integrated unit 10 further specifically includes a first power processing unit 11, a second power processing unit 12, a high voltage output module 13, and a low voltage output module 14, where the first power processing unit 11 is a three-phase power electromagnetic interference processor, an access terminal of the first power processing unit is connected to a three-phase ac power, and processes ac power outside a set frequency in the three-phase ac power, an output terminal of the first power processing unit 11 is connected to an input terminal of the second power processing unit 12, a load of the three-phase ac power is improved by the second power processing unit 12, an output terminal of the second power processing unit 12 is connected to input terminals of the high voltage output module 13 and the low voltage output module 14, a dc voltage range output by the high voltage output module 13 is not less than 350-1000 v, and is used for supplying power to a high voltage external executing device, and a dc voltage range output by the low voltage output module 14 is not less than 10-14 v, and is used for supplying power to the low voltage external executing device.
Referring to fig. 1, the second power integration unit 20 includes three power drivers 110 and an auxiliary power supply module 18, where a first power driver 110 amplifies a control signal thereof through a driving circuit 15 to drive the second power processing unit 12, a second power driver 110 amplifies a control signal thereof through a driving circuit 15 to drive the high voltage output module 13, a first power driver 110 and the second power driver 110 can maintain bidirectional serial communication, and a third power driver 110 amplifies a control signal thereof through a driving circuit 15 to drive the low voltage output module 14, and specifically, all three power drivers 110 in this embodiment use chips F2800 series of the prior art, and sampling circuits 16 are respectively connected between the second power processing unit 12, the high voltage output module 13, the low voltage output module 14 and the three power drivers 110 to collect working states of the second power processing unit 12, the high voltage output module 13 and the low voltage output module 14; the three power drivers 110 are also respectively connected with a protection circuit 17 and an auxiliary power supply module 18, the protection circuit 17 is used for overvoltage and undervoltage, open-phase protection, surge protection and complete machine over-temperature protection of input, overvoltage, overcurrent and short-circuit protection are output, the reliability of the rectification module is guaranteed, the auxiliary power supply module 18 CAN at least provide 12V, 5V and 3.3V direct current, the second power driver 110 is also connected with a CAN communication module 19 for remote communication, the anti-interference is strong, the working state of the module CAN be remotely monitored, and the output voltage CAN be regulated through communication.
Referring to fig. 2, the high-voltage circuit charging protection module includes a main relay JK2, a charging relay JK1, a current limiting resistor 23, a charging capacitor 24, a charging high-voltage input interface 25, a charging high-voltage output interface 26 and a charging low-voltage control interface 27, the dc output end of the high-voltage output module 13 is connected with the charging high-voltage input interface 25, the charging high-voltage input interface 25 is connected with the charging high-voltage output interface 26 through a positive line and a negative line, the charging relay JK1 and the current limiting resistor 23 are arranged on the positive line of the high-voltage circuit charging protection module 2, the charging capacitor 24 is arranged between the positive line and the negative line of the high-voltage circuit charging protection module 2, the main relay JK2 is parallel connected with the charging relay JK1 and the current limiting resistor 23, the charging relay JK1 and the main relay JK2 are respectively connected with the charging low-voltage control interface 27 through wires, and the second power driver 110 is connected with the charging low-voltage control interface 27 through a high-side driving signal output by the driving circuit 15.
The external field equipment such as a compressor and PTC in the cooling unit is provided with a motor, a motor system is generally provided with a capacitor with larger capacity, the capacitor is generally 500-2000 uF, if the capacitor is in a zero value state before the motor is electrified, namely no energy exists in the capacitor, the direct short circuit is equivalent to the moment when the circuit of the motor system is closed, the current is very large, and if the large current is not limited, huge impact is caused to electronic components such as power output equipment and a relay to damage the electronic components. By arranging the high-voltage circuit charging protection module 2, the charging high-voltage input interface 25 of the high-voltage circuit charging protection module 2 is connected with the high-voltage direct-current voltage output by the high-voltage output module 13, when the high-voltage power is needed, the charging relay JK1 connected with the current limiting resistor 23 in series is controlled to be closed through the charging low-voltage control interface 27, the charging capacitor 24 is charged, and the current in the circuit is limited due to the existence of the current limiting resistor 23, so that the impact of heavy current on an external large-voltage executing device is avoided, and the external large-voltage executing device is protected. Waiting for a period of time, which can be 5 s-10 s, closing the main relay JK2 and opening the charging relay JK1, so that the power supply of external field equipment such as a compressor and PTC is more stable, the impact current during power-on is reduced, and electronic components such as a motor controller, power output equipment and the main relay are protected.
Referring to fig. 3, the specific hardware circuit of the first power integration unit 10 is implemented in two stages, the load of the three-phase alternating current is improved by the second power processing unit 12 in the front stage, and the three-phase alternating current is outputted in two stages in the rear stage, wherein one of the two stages is outputted by the high-voltage output module 13 to output a power supply with a direct-current voltage range of not less than 350-1000 v for supplying power to the high-voltage external execution device, and the other is outputted by the low-voltage output module 14 to output a power supply with a direct-current voltage range of not less than 10-14 v for supplying power to the low-voltage external execution device.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (3)
1. A commercial cooling unit power management module which characterized in that: the high-voltage circuit charging protection device comprises a liquid cooling power supply management module (1) and a high-voltage circuit charging protection module (2) which are connected in sequence;
the liquid cooling power supply management module (1) comprises: a first power supply integrated unit (10) and a second power supply integrated unit (20) electrically connected;
The first power supply integration unit (10) comprises a first power supply processing unit (11), a second power supply processing unit (12), a high-voltage output module (13) and a low-voltage output module (14) which are connected in sequence;
The first power supply processing unit (11) is a three-phase power supply processor, the input end of the first power supply processing unit is connected with three-phase alternating current, and alternating current outside the set frequency in the three-phase alternating current is processed;
The output end of the first power supply processing unit (11) is connected with the input end of the second power supply processing unit (12), and the load of the three-phase alternating current is improved through the second power supply processing unit (12);
the output end of the second power supply processing unit (12) is respectively connected with the input end of the high-voltage output module (13) and the input end of the low-voltage output module (14);
The direct-current voltage range output by the high-voltage output module (13) is 350-1000V, and the direct-current voltage range is used for supplying power to a high-voltage external execution device;
the direct-current voltage range output by the low-voltage output module (14) is 10-14V, and the direct-current voltage range is used for supplying power to a low-voltage external execution device;
the high-voltage circuit charging protection module (2) is connected with the output end of the first power supply integration unit (10);
The second power supply integrated unit (20) comprises three power supply drivers (110) and an auxiliary power supply module (18), wherein a first power supply driver (110) amplifies control signals of the first power supply driver through a first driving circuit (15) and is used for driving a second power supply processing unit (12), a second power supply driver (110) amplifies control signals of the second power supply driver through the second driving circuit (15) and is used for driving a high-voltage output module (13), bidirectional serial communication can be kept between the first power supply driver (110) and the second power supply driver (110), a third power supply driver (110) amplifies control signals of the third power supply driver through a third driving circuit (15) and is used for driving a low-voltage output module (14), sampling circuits (16) are respectively connected between the second power supply processing unit (12) and the first power supply driver (110), between the high-voltage output module (13) and the second power supply driver (110) and between the low-voltage output module (14) and the third power supply driver (110) and are respectively used for collecting the second power supply processing unit (12), the high-voltage output module (14) and the low-voltage output module (14) to work in a state; the three power drivers (110) are also respectively connected with a protection circuit (17) and an auxiliary power supply module (18), the protection circuit (17) is used for realizing input overvoltage and undervoltage, phase-failure protection, surge protection, complete machine overheat protection and output overvoltage and overcurrent and short-circuit protection, the reliability of the circuit modules is ensured, the auxiliary power supply module (18) CAN provide 12V, 5V and 3.3V direct currents, and the second power driver (110) is also connected with a CAN communication module (19) for remote communication;
The high-voltage circuit charging protection module (2) comprises a main relay JK2, a charging relay JK1, a current limiting resistor (23), a charging capacitor (24), a charging high-voltage input interface (25), a charging high-voltage output interface (26) and a charging low-voltage control interface (27),
The direct current output end of the high voltage output module (13) is connected with a charging high voltage input interface (25),
The charging high-voltage input interface (25) is connected with the charging high-voltage output interface (26) through a positive electrode wire and a negative electrode wire,
The charging relay JK1 and the current limiting resistor (23) are arranged on the positive electrode wire of the high-voltage circuit charging protection module (2), the charging capacitor (24) is arranged between the positive electrode wire and the negative electrode wire of the high-voltage circuit charging protection module (2),
The main relay JK2 is connected in parallel with a serial branch consisting of a charging relay JK1 and a current limiting resistor (23),
The charging relay JK1 and the main relay JK2 are respectively connected with the charging low-voltage control interface (27) through wires, and the second power driver (110) is connected with the charging low-voltage control interface (27) through a high-side driving signal output by the second driving circuit (15).
2. The utility cooling unit power management module of claim 1, wherein: the first power integration unit (10) is used for converting input three-phase alternating current into high-voltage direct current output and low-voltage direct current output;
The second power supply integration unit (20) is used for remotely monitoring the working state of the first power supply integration unit (10) and remotely adjusting the output voltage of the first power supply integration unit (10);
The high-voltage circuit charging protection module (2) receives the high-voltage direct current output of the first power supply integration unit (10), outputs direct current high voltage to the high-voltage external execution device, and is used for adjusting the output high-voltage large current, reducing the impact current when the high-voltage external execution device is electrified and protecting the high-voltage external execution device.
3. The utility cooling unit power management module of claim 2, wherein: the charging high-voltage input interface (25) of the high-voltage circuit charging protection module (2) is connected with the high-voltage direct current output by the high-voltage output module (13), the charging relay JK1 connected in series with the current limiting resistor (23) is controlled to be closed through the charging low-voltage control interface (27), the charging capacitor (24) is charged, the main relay JK2 is closed again and the charging relay JK1 is opened after a period of time, the current in the circuit is limited due to the existence of the current limiting resistor (23), the impact of high current on a high-voltage external execution device is avoided, and the high-voltage external execution device is protected.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410128675.8A CN117977978B (en) | 2024-01-30 | 2024-01-30 | Commercial cooling unit power management module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410128675.8A CN117977978B (en) | 2024-01-30 | 2024-01-30 | Commercial cooling unit power management module |
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| CN117977978A CN117977978A (en) | 2024-05-03 |
| CN117977978B true CN117977978B (en) | 2024-07-26 |
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| US6838856B2 (en) * | 2002-10-04 | 2005-01-04 | Spx Corporation | Apparatus and method for high-frequency operation in a battery charger |
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| KR100658964B1 (en) * | 2005-01-25 | 2006-12-19 | (주)서울전원시스템 | battery charger |
| CN112737291A (en) * | 2020-12-31 | 2021-04-30 | 山东大骋医疗科技有限公司 | AC-DC compatible input power supply high-voltage generator device |
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| CN116488322B (en) * | 2023-06-25 | 2023-09-12 | 中铁电气化铁路运营管理有限公司 | Parallel low-voltage high-current output direct-current power supply device and control method |
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2024
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| CN104701836A (en) * | 2015-03-27 | 2015-06-10 | 西安交通大学 | Intelligent direct-current micro-grid power supply system |
| CN107863818A (en) * | 2017-12-13 | 2018-03-30 | 广州市鑫炜明电子科技有限公司 | A kind of uninterrupted multi-channel DC output switch power source of intelligent integral |
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